diff options
| author | Keith Whitwell <[email protected]> | 2003-07-17 13:43:59 +0000 |
|---|---|---|
| committer | Keith Whitwell <[email protected]> | 2003-07-17 13:43:59 +0000 |
| commit | 6dc85575000127630489b407c50a4b3ea87c9acb (patch) | |
| tree | c79b24b7059577caf8201eeb7a42a6890721f52b | |
| parent | 44c699949ac09459771304a8aec8f2fc622057fb (diff) | |
Merge Jose's documentation and core Mesa changes from embedded branch
104 files changed, 7646 insertions, 3773 deletions
diff --git a/src/mesa/main/accum.c b/src/mesa/main/accum.c index 1185adbfd41..3ca7d27f83f 100644 --- a/src/mesa/main/accum.c +++ b/src/mesa/main/accum.c @@ -85,3 +85,10 @@ _mesa_Accum( GLenum op, GLfloat value ) ctx->Driver.Accum( ctx, op, value, xpos, ypos, width, height ); } + +void +_mesa_init_accum( GLcontext *ctx ) +{ + /* Accumulate buffer group */ + ASSIGN_4V( ctx->Accum.ClearColor, 0.0, 0.0, 0.0, 0.0 ); +} diff --git a/src/mesa/main/accum.h b/src/mesa/main/accum.h index 8682525dc14..625d0bfd61d 100644 --- a/src/mesa/main/accum.h +++ b/src/mesa/main/accum.h @@ -1,3 +1,12 @@ +/** + * \file accum.h + * Accumulation buffer operations. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -24,12 +33,14 @@ */ + #ifndef ACCUM_H #define ACCUM_H #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_Accum( GLenum op, GLfloat value ); @@ -38,5 +49,14 @@ _mesa_Accum( GLenum op, GLfloat value ); extern void _mesa_ClearAccum( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha ); +extern void +_mesa_init_accum( GLcontext *ctx ); + +#else + +/** No-op */ +#define _mesa_init_accum( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/api_loopback.c b/src/mesa/main/api_loopback.c index 335dc32ad23..ecd701da3bf 100644 --- a/src/mesa/main/api_loopback.c +++ b/src/mesa/main/api_loopback.c @@ -1,3 +1,9 @@ +/** + * \file api_loopback.c + * + * \author Keith Whitwell <[email protected]> + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -20,9 +26,6 @@ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: - * Keith Whitwell <[email protected]> */ diff --git a/src/mesa/main/api_loopback.h b/src/mesa/main/api_loopback.h index a4858e44f47..202261aa9cb 100644 --- a/src/mesa/main/api_loopback.h +++ b/src/mesa/main/api_loopback.h @@ -1,4 +1,3 @@ - /* * Mesa 3-D graphics library * Version: 3.5 @@ -23,11 +22,14 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + + #ifndef API_LOOPBACK_H #define API_LOOPBACK_H #include "glheader.h" + struct _glapi_table; extern void _mesa_loopback_prefer_float( struct _glapi_table *dest, diff --git a/src/mesa/main/arbprogram.c b/src/mesa/main/arbprogram.c index 54715e20b35..08d72fafc07 100644 --- a/src/mesa/main/arbprogram.c +++ b/src/mesa/main/arbprogram.c @@ -24,7 +24,7 @@ /** * \file arbprogram.c - * \brief ARB_vertex/fragment_program state management functions. + * ARB_vertex/fragment_program state management functions. * \author Brian Paul */ diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c index 30c0c7faffd..19cee76d5de 100644 --- a/src/mesa/main/attrib.c +++ b/src/mesa/main/attrib.c @@ -1233,3 +1233,11 @@ _mesa_PopClientAttrib(void) attr = next; } } + + +void _mesa_init_attrib( GLcontext *ctx ) +{ + /* Renderer and client attribute stacks */ + ctx->AttribStackDepth = 0; + ctx->ClientAttribStackDepth = 0; +} diff --git a/src/mesa/main/attrib.h b/src/mesa/main/attrib.h index 722bbcf83f6..82676246373 100644 --- a/src/mesa/main/attrib.h +++ b/src/mesa/main/attrib.h @@ -1,3 +1,13 @@ +/** + * \file attrib.h + * Attribute stacks. + * + * \if subset + * (No-op) + * + * \endif + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,12 +33,16 @@ */ + #ifndef ATTRIB_H #define ATTRIB_H #include "mtypes.h" + +#if _HAVE_FULL_GL + extern void _mesa_PushAttrib( GLbitfield mask ); @@ -41,5 +55,14 @@ _mesa_PushClientAttrib( GLbitfield mask ); extern void _mesa_PopClientAttrib( void ); +extern void +_mesa_init_attrib( GLcontext *ctx ); + +#else + +/** No-op */ +#define _mesa_init_attrib( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c index e031851f98b..dad5184dd92 100644 --- a/src/mesa/main/blend.c +++ b/src/mesa/main/blend.c @@ -1,3 +1,7 @@ +/** + * \file blend.c + * Blending operations. + */ /* * Mesa 3-D graphics library @@ -24,6 +28,7 @@ */ + #include "glheader.h" #include "blend.h" #include "colormac.h" @@ -33,6 +38,18 @@ #include "mtypes.h" +/** + * Specify the blending operation. + * + * \param sfactor source factor operator. + * \param dfactor destination factor operator. + * + * \sa glBlendFunc(). + * + * Verifies the parameters and updates gl_colorbuffer_attrib. On a change, + * flushes the vertices and notifies the driver via + * dd_function_table::BlendFunc callback. + */ void _mesa_BlendFunc( GLenum sfactor, GLenum dfactor ) { @@ -113,7 +130,20 @@ _mesa_BlendFunc( GLenum sfactor, GLenum dfactor ) } -/* GL_EXT_blend_func_separate */ +#if _HAVE_FULL_GL + +/** + * Process GL_EXT_blend_func_separate(). + * + * \param sfactorRGB RGB source factor operator. + * \param dfactorRGB RGB destination factor operator. + * \param sfactorA alpha source factor operator. + * \param dfactorA alpha destination factor operator. + * + * Verifies the parameters and updates gl_colorbuffer_attrib. + * On a change, flush the vertices and notify the driver via + * dd_function_table::BlendFuncSeparate. + */ void _mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorA, GLenum dfactorA ) @@ -254,7 +284,6 @@ _mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB, } - /* This is really an extension function! */ void _mesa_BlendEquation( GLenum mode ) @@ -312,8 +341,23 @@ _mesa_BlendEquation( GLenum mode ) (*ctx->Driver.BlendEquation)( ctx, mode ); } +#endif +/** + * Set the blending color. + * + * \param red red color component. + * \param green green color component. + * \param blue blue color component. + * \param alpha alpha color component. + * + * \sa glBlendColor(). + * + * Clamps the parameters and updates gl_colorbuffer_attrib::BlendColor. On a + * change, flushes the vertices and notifies the driver via + * dd_function_table::BlendColor callback. + */ void _mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha ) { @@ -337,6 +381,16 @@ _mesa_BlendColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha ) } +/** + * Specify the alpha test function. + * + * \param func alpha comparison function. + * \param ref reference value. + * + * Verifies the parameters and updates gl_colorbuffer_attrib. + * On a change, flushes the vertices and notifies the driver via + * dd_function_table::AlphaFunc callback. + */ void _mesa_AlphaFunc( GLenum func, GLclampf ref ) { @@ -372,6 +426,16 @@ _mesa_AlphaFunc( GLenum func, GLclampf ref ) } +/** + * Specify a logic pixel operation for color index rendering. + * + * \param opcode operation. + * + * Verifies that \p opcode is a valid enum and updates +gl_colorbuffer_attrib::LogicOp. + * On a change, flushes the vertices and notifies the driver via the + * dd_function_table::LogicOpcode callback. + */ void _mesa_LogicOp( GLenum opcode ) { @@ -411,7 +475,7 @@ _mesa_LogicOp( GLenum opcode ) ctx->Driver.LogicOpcode( ctx, opcode ); } - +#if _HAVE_FULL_GL void _mesa_IndexMask( GLuint mask ) { @@ -427,8 +491,23 @@ _mesa_IndexMask( GLuint mask ) if (ctx->Driver.IndexMask) ctx->Driver.IndexMask( ctx, mask ); } +#endif +/** + * Enable or disable writing of frame buffer color components. + * + * \param red whether to mask writing of the red color component. + * \param green whether to mask writing of the green color component. + * \param blue whether to mask writing of the blue color component. + * \param alpha whether to mask writing of the alpha color component. + * + * \sa glColorMask(). + * + * Sets the appropriate value of gl_colorbuffer_attrib::ColorMask. On a + * change, flushes the vertices and notifies the driver via the + * dd_function_table::ColorMask callback. + */ void _mesa_ColorMask( GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha ) @@ -457,3 +536,53 @@ _mesa_ColorMask( GLboolean red, GLboolean green, if (ctx->Driver.ColorMask) ctx->Driver.ColorMask( ctx, red, green, blue, alpha ); } + +/**********************************************************************/ +/** \name Initialization */ +/*@{*/ + +/** + * Initialization of the context color data. + * + * \param ctx GL context. + * + * Initializes the related fields in the context color attribute group, + * __GLcontextRec::Color. + */ +void _mesa_init_color( GLcontext * ctx ) +{ + /* Color buffer group */ + ctx->Color.IndexMask = 0xffffffff; + ctx->Color.ColorMask[0] = 0xff; + ctx->Color.ColorMask[1] = 0xff; + ctx->Color.ColorMask[2] = 0xff; + ctx->Color.ColorMask[3] = 0xff; + ctx->Color.ClearIndex = 0; + ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 ); + ctx->Color.DrawBuffer = GL_FRONT; + ctx->Color.AlphaEnabled = GL_FALSE; + ctx->Color.AlphaFunc = GL_ALWAYS; + ctx->Color.AlphaRef = 0; + ctx->Color.BlendEnabled = GL_FALSE; + ctx->Color.BlendSrcRGB = GL_ONE; + ctx->Color.BlendDstRGB = GL_ZERO; + ctx->Color.BlendSrcA = GL_ONE; + ctx->Color.BlendDstA = GL_ZERO; + ctx->Color.BlendEquation = GL_FUNC_ADD_EXT; + ASSIGN_4V( ctx->Color.BlendColor, 0.0, 0.0, 0.0, 0.0 ); + ctx->Color.IndexLogicOpEnabled = GL_FALSE; + ctx->Color.ColorLogicOpEnabled = GL_FALSE; + ctx->Color.LogicOp = GL_COPY; + ctx->Color.DitherFlag = GL_TRUE; + + if (ctx->Visual.doubleBufferMode) { + ctx->Color.DrawBuffer = GL_BACK; + ctx->Color._DrawDestMask = BACK_LEFT_BIT; + } + else { + ctx->Color.DrawBuffer = GL_FRONT; + ctx->Color._DrawDestMask = FRONT_LEFT_BIT; + } +} + +/*@}*/ diff --git a/src/mesa/main/blend.h b/src/mesa/main/blend.h index d0a24afd00f..a967937e682 100644 --- a/src/mesa/main/blend.h +++ b/src/mesa/main/blend.h @@ -1,3 +1,7 @@ +/** + * \file blend.h + * Blending functions operations. + */ /* * Mesa 3-D graphics library @@ -24,6 +28,7 @@ */ + #ifndef BLEND_H #define BLEND_H @@ -63,5 +68,7 @@ extern void _mesa_ColorMask( GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha ); +extern void +_mesa_init_color( GLcontext * ctx ); #endif diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index f3844022195..a9e66a199ae 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -25,7 +25,7 @@ /** * \file bufferobj.c - * \brief Functions for the GL_ARB_vertex_buffer_object extension. + * Functions for the GL_ARB_vertex_buffer_object extension. * \author Brian Paul */ diff --git a/src/mesa/main/buffers.c b/src/mesa/main/buffers.c index 92379a2335d..6c58ed408c4 100644 --- a/src/mesa/main/buffers.c +++ b/src/mesa/main/buffers.c @@ -1,3 +1,8 @@ +/** + * \file buffers.c + * Frame buffer management. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -25,7 +30,6 @@ #include "glheader.h" #include "imports.h" -#include "accum.h" #include "buffers.h" #include "colormac.h" #include "context.h" @@ -36,7 +40,7 @@ #include "mtypes.h" - +#if _HAVE_FULL_GL void _mesa_ClearIndex( GLfloat c ) { @@ -54,9 +58,23 @@ _mesa_ClearIndex( GLfloat c ) (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex ); } } +#endif - +/** + * Specify the clear values for the color buffers. + * + * \param red red color component. + * \param green green color component. + * \param blue blue color component. + * \param alpha alpha component. + * + * \sa glClearColor(). + * + * Clamps the parameters and updates gl_colorbuffer_attrib::ClearColor. On a + * change, flushes the vertices and notifies the driver via the + * dd_function_table::ClearColor callback. + */ void _mesa_ClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha ) { @@ -82,7 +100,16 @@ _mesa_ClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha ) } - +/** + * Clear buffers. + * + * \param mask bit-mask indicating the buffers to be cleared. + * + * Flushes the vertices and verifies the parameter. If __GLcontextRec::NewState + * is set then calls _mesa_update_state() to update gl_frame_buffer::_Xmin, + * etc. If the rasterization mode is set to GL_RENDER then requests the driver + * to clear the buffers, via the dd_function_table::Clear callback. + */ void _mesa_Clear( GLbitfield mask ) { @@ -137,6 +164,18 @@ _mesa_Clear( GLbitfield mask ) } +/** + * Specify which color buffers to draw into. + * + * \param mode color buffer combination. + * + * \sa glDrawBuffer(). + * + * Flushes the vertices and verifies the parameter and updates the + * gl_colorbuffer_attrib::_DrawDestMask bitfield. Marks new color state in + * __GLcontextRec::NewState and notifies the driver via the + * dd_function_table::DrawBuffer callback. + */ void _mesa_DrawBuffer( GLenum mode ) { @@ -150,6 +189,28 @@ _mesa_DrawBuffer( GLenum mode ) * Do error checking and compute the _DrawDestMask bitfield. */ switch (mode) { + case GL_FRONT: + /* never an error */ + if (ctx->Visual.stereoMode) + ctx->Color._DrawDestMask = FRONT_LEFT_BIT | FRONT_RIGHT_BIT; + else + ctx->Color._DrawDestMask = FRONT_LEFT_BIT; + break; + case GL_BACK: + if (!ctx->Visual.doubleBufferMode) { + _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" ); + return; + } + if (ctx->Visual.stereoMode) + ctx->Color._DrawDestMask = BACK_LEFT_BIT | BACK_RIGHT_BIT; + else + ctx->Color._DrawDestMask = BACK_LEFT_BIT; + break; + case GL_NONE: + /* never an error */ + ctx->Color._DrawDestMask = 0; + break; +#if _HAVE_FULL_GL case GL_RIGHT: if (!ctx->Visual.stereoMode) { _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" ); @@ -191,16 +252,6 @@ _mesa_DrawBuffer( GLenum mode ) else ctx->Color._DrawDestMask = FRONT_LEFT_BIT | BACK_LEFT_BIT; break; - case GL_BACK: - if (!ctx->Visual.doubleBufferMode) { - _mesa_error( ctx, GL_INVALID_OPERATION, "glDrawBuffer" ); - return; - } - if (ctx->Visual.stereoMode) - ctx->Color._DrawDestMask = BACK_LEFT_BIT | BACK_RIGHT_BIT; - else - ctx->Color._DrawDestMask = BACK_LEFT_BIT; - break; case GL_LEFT: /* never an error */ if (ctx->Visual.doubleBufferMode) @@ -212,17 +263,6 @@ _mesa_DrawBuffer( GLenum mode ) /* never an error */ ctx->Color._DrawDestMask = FRONT_LEFT_BIT; break; - case GL_FRONT: - /* never an error */ - if (ctx->Visual.stereoMode) - ctx->Color._DrawDestMask = FRONT_LEFT_BIT | FRONT_RIGHT_BIT; - else - ctx->Color._DrawDestMask = FRONT_LEFT_BIT; - break; - case GL_NONE: - /* never an error */ - ctx->Color._DrawDestMask = 0; - break; case GL_AUX0: if (ctx->Const.NumAuxBuffers >= 1) { ctx->Color._DrawDestMask = AUX0_BIT; @@ -259,6 +299,7 @@ _mesa_DrawBuffer( GLenum mode ) return; } break; +#endif default: _mesa_error( ctx, GL_INVALID_ENUM, "glDrawBuffer" ); return; @@ -275,7 +316,17 @@ _mesa_DrawBuffer( GLenum mode ) } - +/** + * Set the color buffer source for reading pixels. + * + * \param mode color buffer. + * + * \sa glReadBuffer(). + * + * Verifies the parameter and updates gl_pixel_attrib::_ReadSrcMask. Marks + * new pixel state in __GLcontextRec::NewState and notifies the driver via + * dd_function_table::ReadBuffer. + */ void _mesa_ReadBuffer( GLenum mode ) { @@ -304,6 +355,7 @@ _mesa_ReadBuffer( GLenum mode ) } ctx->Pixel._ReadSrcMask = BACK_LEFT_BIT; break; +#if _HAVE_FULL_GL case GL_FRONT_RIGHT: case GL_RIGHT: if (!ctx->Visual.stereoMode) { @@ -355,6 +407,7 @@ _mesa_ReadBuffer( GLenum mode ) return; } break; +#endif default: _mesa_error( ctx, GL_INVALID_ENUM, "glReadBuffer" ); return; @@ -370,8 +423,11 @@ _mesa_ReadBuffer( GLenum mode ) (*ctx->Driver.ReadBuffer)(ctx, mode); } +#if _HAVE_FULL_GL /** + * GL_MESA_resize_buffers extension. + * * When this function is called, we'll ask the window system how large * the current window is. If it's a new size, we'll call the driver's * ResizeBuffers function. The driver will then resize its color buffers @@ -429,7 +485,41 @@ _mesa_ResizeBuffersMESA( void ) } } +/* + * XXX move somewhere else someday? + */ +void +_mesa_SampleCoverageARB(GLclampf value, GLboolean invert) +{ + GLcontext *ctx = _mesa_get_current_context(); + if (!ctx->Extensions.ARB_multisample) { + _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleCoverageARB"); + return; + } + + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx ); + ctx->Multisample.SampleCoverageValue = (GLfloat) CLAMP(value, 0.0, 1.0); + ctx->Multisample.SampleCoverageInvert = invert; + ctx->NewState |= _NEW_MULTISAMPLE; +} + +#endif + + +/** + * Define the scissor box. + * + * \param x, y coordinates of the scissor box lower-left corner. + * \param width width of the scissor box. + * \param height height of the scissor box. + * + * \sa glScissor(). + * + * Verifies the parameters and updates __GLcontextRec::Scissor. On a + * change flushes the vertices and notifies the driver via + * the dd_function_table::Scissor callback. + */ void _mesa_Scissor( GLint x, GLint y, GLsizei width, GLsizei height ) { @@ -460,23 +550,71 @@ _mesa_Scissor( GLint x, GLint y, GLsizei width, GLsizei height ) ctx->Driver.Scissor( ctx, x, y, width, height ); } +/**********************************************************************/ +/** \name State management */ +/*@{*/ -/* - * XXX move somewhere else someday? +/** + * Update screen bounds. + * + * \param ctx GL context. + * + * Update gl_frame_buffer::_Xmin, and etc. */ -void -_mesa_SampleCoverageARB(GLclampf value, GLboolean invert) +void _mesa_update_buffers( GLcontext *ctx ) { - GLcontext *ctx = _mesa_get_current_context(); - - if (!ctx->Extensions.ARB_multisample) { - _mesa_error(ctx, GL_INVALID_OPERATION, "glSampleCoverageARB"); - return; + ctx->DrawBuffer->_Xmin = 0; + ctx->DrawBuffer->_Ymin = 0; + ctx->DrawBuffer->_Xmax = ctx->DrawBuffer->Width; + ctx->DrawBuffer->_Ymax = ctx->DrawBuffer->Height; + if (ctx->Scissor.Enabled) { + if (ctx->Scissor.X > ctx->DrawBuffer->_Xmin) { + ctx->DrawBuffer->_Xmin = ctx->Scissor.X; + } + if (ctx->Scissor.Y > ctx->DrawBuffer->_Ymin) { + ctx->DrawBuffer->_Ymin = ctx->Scissor.Y; + } + if (ctx->Scissor.X + ctx->Scissor.Width < ctx->DrawBuffer->_Xmax) { + ctx->DrawBuffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width; + } + if (ctx->Scissor.Y + ctx->Scissor.Height < ctx->DrawBuffer->_Ymax) { + ctx->DrawBuffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height; + } } - - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx ); - ctx->Multisample.SampleCoverageValue = (GLfloat) CLAMP(value, 0.0, 1.0); - ctx->Multisample.SampleCoverageInvert = invert; - ctx->NewState |= _NEW_MULTISAMPLE; } + +/*@}*/ + +/**********************************************************************/ +/** \name Initialization */ +/*@{*/ + +/** + * Initialize the context scissor data. + * + * \param ctx GL context. + * + * Initializes the __GLcontextRec::Scissor and __GLcontextRec::Multisample + * attribute groups, and related constants in __GLcontextRec::Const. + */ +void _mesa_init_buffers( GLcontext * ctx ) +{ + /* Scissor group */ + ctx->Scissor.Enabled = GL_FALSE; + ctx->Scissor.X = 0; + ctx->Scissor.Y = 0; + ctx->Scissor.Width = 0; + ctx->Scissor.Height = 0; + + /* Multisample */ + ctx->Multisample.Enabled = GL_FALSE; + ctx->Multisample.SampleAlphaToCoverage = GL_FALSE; + ctx->Multisample.SampleAlphaToOne = GL_FALSE; + ctx->Multisample.SampleCoverage = GL_FALSE; + ctx->Multisample.SampleCoverageValue = 1.0; + ctx->Multisample.SampleCoverageInvert = GL_FALSE; + +} + +/*@}*/ diff --git a/src/mesa/main/buffers.h b/src/mesa/main/buffers.h index dfa2131309d..7c992a98cad 100644 --- a/src/mesa/main/buffers.h +++ b/src/mesa/main/buffers.h @@ -1,3 +1,7 @@ +/** + * \file buffers.h + * Frame buffer management functions declarations. + */ /* * Mesa 3-D graphics library @@ -24,6 +28,7 @@ */ + #ifndef BUFFERS_H #define BUFFERS_H @@ -56,5 +61,10 @@ _mesa_Scissor( GLint x, GLint y, GLsizei width, GLsizei height ); extern void _mesa_SampleCoverageARB(GLclampf value, GLboolean invert); +extern void +_mesa_init_buffers( GLcontext * ctx ); + +extern void +_mesa_update_buffers( GLcontext *ctx ); #endif diff --git a/src/mesa/main/clip.c b/src/mesa/main/clip.c index 3050f4e379f..a061980af42 100644 --- a/src/mesa/main/clip.c +++ b/src/mesa/main/clip.c @@ -116,3 +116,4 @@ _mesa_GetClipPlane( GLenum plane, GLdouble *equation ) equation[2] = (GLdouble) ctx->Transform.EyeUserPlane[p][2]; equation[3] = (GLdouble) ctx->Transform.EyeUserPlane[p][3]; } + diff --git a/src/mesa/main/clip.h b/src/mesa/main/clip.h index fffcf13e979..154e3ce9482 100644 --- a/src/mesa/main/clip.h +++ b/src/mesa/main/clip.h @@ -1,3 +1,6 @@ +/** + * \file clip.h + */ /* * Mesa 3-D graphics library @@ -25,8 +28,6 @@ - - #ifndef CLIP_H #define CLIP_H diff --git a/src/mesa/main/colormac.h b/src/mesa/main/colormac.h index e26052343e3..cf89a818f66 100644 --- a/src/mesa/main/colormac.h +++ b/src/mesa/main/colormac.h @@ -1,3 +1,7 @@ +/** + * \file colormac.h + * Color-related macros + */ /* * Mesa 3-D graphics library @@ -25,10 +29,6 @@ -/* - * Color-related macros - */ - #ifndef COLORMAC_H #define COLORMAC_H @@ -38,6 +38,42 @@ #include "macros.h" +/** \def BYTE_TO_CHAN + * Convert from GLbyte to GLchan */ + +/** \def UBYTE_TO_CHAN + * Convert from GLubyte to GLchan */ + +/** \def SHORT_TO_CHAN + * Convert from GLshort to GLchan */ + +/** \def USHORT_TO_CHAN + * Convert from GLushort to GLchan */ + +/** \def INT_TO_CHAN + * Convert from GLint to GLchan */ + +/** \def UINT_TO_CHAN + * Convert from GLuint to GLchan */ + +/** \def CHAN_TO_UBYTE + * Convert from GLchan to GLubyte */ + +/** \def CHAN_TO_FLOAT + * Convert from GLchan to GLfloat */ + +/** \def CLAMPED_FLOAT_TO_CHAN + * Convert from GLclampf to GLchan */ + +/** \def UNCLAMPED_FLOAT_TO_CHAN + * Convert from GLfloat to GLchan */ + +/** \def COPY_CHAN4 + * Copy a GLchan[4] array */ + +/** \def CHAN_PRODUCT + * Scaled product (usually approximated) between two GLchan arguments */ + #if CHAN_BITS == 8 #define BYTE_TO_CHAN(b) ((b) < 0 ? 0 : (GLchan) (b)) @@ -57,7 +93,6 @@ #define CHAN_PRODUCT(a, b) ((GLubyte) (((GLint)(a) * ((GLint)(b) + 1)) >> 8)) - #elif CHAN_BITS == 16 #define BYTE_TO_CHAN(b) ((b) < 0 ? 0 : (((GLchan) (b)) * 516)) @@ -77,7 +112,6 @@ #define CHAN_PRODUCT(a, b) ((GLchan) ((((GLuint) (a)) * ((GLuint) (b))) / 65535)) - #elif CHAN_BITS == 32 /* XXX floating-point color channels not fully thought-out */ @@ -105,9 +139,13 @@ #endif - -/* +/** * Convert 3 channels at once. + * + * \param dst pointer to destination GLchan[3] array. + * \param f pointer to source GLfloat[3] array. + * + * \sa #UNCLAMPED_FLOAT_TO_CHAN. */ #define UNCLAMPED_FLOAT_TO_RGB_CHAN(dst, f) \ do { \ @@ -117,8 +155,13 @@ do { \ } while (0) -/* +/** * Convert 4 channels at once. + * + * \param dst pointer to destination GLchan[4] array. + * \param f pointer to source GLfloat[4] array. + * + * \sa #UNCLAMPED_FLOAT_TO_CHAN. */ #define UNCLAMPED_FLOAT_TO_RGBA_CHAN(dst, f) \ do { \ @@ -130,9 +173,12 @@ do { \ -/* Generic color packing macros - * XXX We may move these into texutil.h at some point. +/** + * \name Generic color packing macros + * + * \todo We may move these into texutil.h at some point. */ +/*@{*/ #define PACK_COLOR_8888( a, b, c, d ) \ (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) @@ -187,5 +233,7 @@ do { \ #endif /* endianness */ +/*@}*/ + #endif /* COLORMAC_H */ diff --git a/src/mesa/main/colortab.c b/src/mesa/main/colortab.c index 78ef93caa61..9a1734bf4be 100644 --- a/src/mesa/main/colortab.c +++ b/src/mesa/main/colortab.c @@ -92,26 +92,6 @@ base_colortab_format( GLenum format ) } -void -_mesa_init_colortable( struct gl_color_table *p ) -{ - p->FloatTable = GL_FALSE; - p->Table = NULL; - p->Size = 0; - p->IntFormat = GL_RGBA; -} - - - -void -_mesa_free_colortable_data( struct gl_color_table *p ) -{ - if (p->Table) { - FREE(p->Table); - p->Table = NULL; - } -} - /* * Examine table's format and set the component sizes accordingly. @@ -1345,3 +1325,49 @@ _mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params ) return; } } + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + + +void +_mesa_init_one_colortable( struct gl_color_table *p ) +{ + p->FloatTable = GL_FALSE; + p->Table = NULL; + p->Size = 0; + p->IntFormat = GL_RGBA; +} + + + +void +_mesa_free_one_colortable( struct gl_color_table *p ) +{ + if (p->Table) { + FREE(p->Table); + p->Table = NULL; + } +} + +void _mesa_init_colortable( GLcontext * ctx ) +{ + /* Color tables */ + _mesa_init_one_colortable(&ctx->ColorTable); + _mesa_init_one_colortable(&ctx->ProxyColorTable); + _mesa_init_one_colortable(&ctx->PostConvolutionColorTable); + _mesa_init_one_colortable(&ctx->ProxyPostConvolutionColorTable); + _mesa_init_one_colortable(&ctx->PostColorMatrixColorTable); + _mesa_init_one_colortable(&ctx->ProxyPostColorMatrixColorTable); +} + +void _mesa_free_colortable_data( GLcontext *ctx ) +{ + _mesa_free_one_colortable( &ctx->ColorTable ); + _mesa_free_one_colortable( &ctx->ProxyColorTable ); + _mesa_free_one_colortable( &ctx->PostConvolutionColorTable ); + _mesa_free_one_colortable( &ctx->ProxyPostConvolutionColorTable ); + _mesa_free_one_colortable( &ctx->PostColorMatrixColorTable ); + _mesa_free_one_colortable( &ctx->ProxyPostColorMatrixColorTable ); +} diff --git a/src/mesa/main/colortab.h b/src/mesa/main/colortab.h index e3bc76e5c33..959547e28bc 100644 --- a/src/mesa/main/colortab.h +++ b/src/mesa/main/colortab.h @@ -1,3 +1,12 @@ +/** + * \file colortab.h + * Color tables. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -30,57 +39,67 @@ #include "mtypes.h" - -extern void -_mesa_init_colortable( struct gl_color_table *p ); - -extern void -_mesa_free_colortable_data( struct gl_color_table *p ); - +#if _HAVE_FULL_GL extern void _mesa_ColorTable( GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const GLvoid *table ); - extern void _mesa_ColorSubTable( GLenum target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *table ); - extern void _mesa_CopyColorSubTable(GLenum target, GLsizei start, GLint x, GLint y, GLsizei width); - extern void _mesa_CopyColorTable(GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width); - extern void _mesa_GetColorTable( GLenum target, GLenum format, GLenum type, GLvoid *table ); - extern void _mesa_ColorTableParameterfv(GLenum target, GLenum pname, const GLfloat *params); - extern void _mesa_ColorTableParameteriv(GLenum target, GLenum pname, const GLint *params); - extern void _mesa_GetColorTableParameterfv( GLenum target, GLenum pname, GLfloat *params ); - extern void _mesa_GetColorTableParameteriv( GLenum target, GLenum pname, GLint *params ); +extern void +_mesa_init_colortable( GLcontext * ctx ); + +extern void +_mesa_free_colortable_data( GLcontext * ctx ); + +extern void +_mesa_free_one_colortable( struct gl_color_table *p ); + +extern void +_mesa_init_one_colortable( struct gl_color_table *p ); + +#else + +/** No-op */ +#define _mesa_init_one_colortable( p ) ((void)0) + +/** No-op */ +#define _mesa_init_colortable( p ) ((void)0) + +/** No-op */ +#define _mesa_free_colortable_data( p ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h index 4b4b3ef10ae..ebbdeaa7048 100644 --- a/src/mesa/main/config.h +++ b/src/mesa/main/config.h @@ -1,3 +1,8 @@ +/** + * \file config.h + * Tunable configuration parameters. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,12 +28,6 @@ */ -/* - * Tunable configuration parameters. - */ - - - #ifndef CONFIG_H #define CONFIG_H @@ -37,113 +36,126 @@ #endif -/* - * OpenGL implementation limits +/** + * \name OpenGL implementation limits */ +/*@{*/ -/* Maximum modelview matrix stack depth: */ +/** Maximum modelview matrix stack depth */ #define MAX_MODELVIEW_STACK_DEPTH 32 -/* Maximum projection matrix stack depth: */ +/** Maximum projection matrix stack depth */ #define MAX_PROJECTION_STACK_DEPTH 32 -/* Maximum texture matrix stack depth: */ +/** Maximum texture matrix stack depth */ #define MAX_TEXTURE_STACK_DEPTH 10 -/* Maximum color matrix stack depth: */ +/** Maximum color matrix stack depth */ #define MAX_COLOR_STACK_DEPTH 4 -/* Maximum attribute stack depth: */ +/** Maximum attribute stack depth */ #define MAX_ATTRIB_STACK_DEPTH 16 -/* Maximum client attribute stack depth: */ +/** Maximum client attribute stack depth */ #define MAX_CLIENT_ATTRIB_STACK_DEPTH 16 -/* Maximum recursion depth of display list calls: */ +/** Maximum recursion depth of display list calls */ #define MAX_LIST_NESTING 64 -/* Maximum number of lights: */ +/** Maximum number of lights */ #define MAX_LIGHTS 8 -/* Maximum user-defined clipping planes: */ +/** Maximum user-defined clipping planes */ #define MAX_CLIP_PLANES 6 -/* Maximum pixel map lookup table size: */ +/** Maximum pixel map lookup table size */ #define MAX_PIXEL_MAP_TABLE 256 -/* Number of auxillary color buffers: */ +/** Number of auxillary color buffers */ #define NUM_AUX_BUFFERS 0 -/* Maximum order (degree) of curves: */ +/** Maximum order (degree) of curves */ #ifdef AMIGA # define MAX_EVAL_ORDER 12 #else # define MAX_EVAL_ORDER 30 #endif -/* Maximum Name stack depth */ +/** Maximum Name stack depth */ #define MAX_NAME_STACK_DEPTH 64 -/* Min and Max point sizes and granularity */ +/** Minimum point size */ #define MIN_POINT_SIZE 1.0 +/** Maximum point size */ #define MAX_POINT_SIZE 20.0 +/** Point size granularity */ #define POINT_SIZE_GRANULARITY 0.1 -/* Min and Max line widths and granularity */ +/** Minimum line width */ #define MIN_LINE_WIDTH 1.0 +/** Maximum line width */ #define MAX_LINE_WIDTH 10.0 +/** Line width granularity */ #define LINE_WIDTH_GRANULARITY 0.1 -/* Max texture palette / color table size */ +/** Max texture palette / color table size */ #define MAX_COLOR_TABLE_SIZE 256 -/* Number of 1D/2D texture mipmap levels */ +/** Number of 1D/2D texture mipmap levels */ #define MAX_TEXTURE_LEVELS 12 -/* Number of 3D texture mipmap levels */ +/** Number of 3D texture mipmap levels */ #define MAX_3D_TEXTURE_LEVELS 9 -/* Number of cube texture mipmap levels - GL_ARB_texture_cube_map */ +/** Number of cube texture mipmap levels - GL_ARB_texture_cube_map */ #define MAX_CUBE_TEXTURE_LEVELS 12 -/* Maximum rectangular texture size - GL_NV_texture_rectangle */ +/** Maximum rectangular texture size - GL_NV_texture_rectangle */ #define MAX_TEXTURE_RECT_SIZE 2048 -/* Number of texture units - GL_ARB_multitexture */ +/** Number of texture units - GL_ARB_multitexture */ #define MAX_TEXTURE_UNITS 8 -/* New: separate numbers of texture coordinates and texture image units. +/** + * \name Separate numbers of texture coordinates and texture image units. + * * These values will eventually replace most instances of MAX_TEXTURE_UNITS. * We should always have MAX_TEXTURE_COORD_UNITS <= MAX_TEXTURE_IMAGE_UNITS. * And, GL_MAX_TEXTURE_UNITS <= MAX_TEXTURE_COORD_UNITS. */ +/*@{*/ #define MAX_TEXTURE_COORD_UNITS 8 #define MAX_TEXTURE_IMAGE_UNITS 8 +/*@}*/ -/* Maximum viewport/image size (must accomodate all texture sizes too): */ +/** + * Maximum viewport/image width. Must accomodate all texture sizes too. + */ #define MAX_WIDTH 2048 +/** Maximum viewport/image height */ #define MAX_HEIGHT 2048 -/* Maxmimum size for CVA. May be overridden by the drivers. */ +/** Maxmimum size for CVA. May be overridden by the drivers. */ #define MAX_ARRAY_LOCK_SIZE 3000 -/* Subpixel precision for antialiasing, window coordinate snapping */ +/** Subpixel precision for antialiasing, window coordinate snapping */ #define SUB_PIXEL_BITS 4 -/* Size of histogram tables */ +/** Size of histogram tables */ #define HISTOGRAM_TABLE_SIZE 256 -/* Max convolution filter sizes */ +/** Max convolution filter width */ #define MAX_CONVOLUTION_WIDTH 9 +/** Max convolution filter height */ #define MAX_CONVOLUTION_HEIGHT 9 -/* GL_ARB_texture_compression */ +/** GL_ARB_texture_compression */ #define MAX_COMPRESSED_TEXTURE_FORMATS 25 -/* GL_EXT_texture_filter_anisotropic */ +/** GL_EXT_texture_filter_anisotropic */ #define MAX_TEXTURE_MAX_ANISOTROPY 16.0 -/* GL_EXT_texture_lod_bias */ +/** GL_EXT_texture_lod_bias */ #define MAX_TEXTURE_LOD_BIAS 4.0 /* GL_NV_vertex_program */ @@ -175,28 +187,30 @@ #define MAX_PROGRAM_MATRICES 8 #define MAX_PROGRAM_MATRIX_STACK_DEPTH 4 +/*@}*/ - -/* - * Mesa-specific parameters +/** + * \name Mesa-specific parameters */ +/*@{*/ -/* +/** * Bits per accumulation buffer color component: 8, 16 or 32 */ #define ACCUM_BITS 16 - -/* - * Bits per depth buffer value. Any reasonable value up to 31 will - * work. 32 doesn't work because of integer overflow problems in the - * rasterizer code. +/** + * Bits per depth buffer value. + * + * Any reasonable value up to 31 will work. 32 doesn't work because of integer + * overflow problems in the rasterizer code. */ #ifndef DEFAULT_SOFTWARE_DEPTH_BITS #define DEFAULT_SOFTWARE_DEPTH_BITS 16 #endif +/** Depth buffer data type */ #if DEFAULT_SOFTWARE_DEPTH_BITS <= 16 #define DEFAULT_SOFTWARE_DEPTH_TYPE GLushort #else @@ -204,14 +218,13 @@ #endif - -/* - * Bits per stencil value: 8 +/** + * Bits per stencil value: 8 */ #define STENCIL_BITS 8 -/* +/** * Bits per color channel: 8, 16 or 32 */ #ifndef CHAN_BITS @@ -221,19 +234,27 @@ /* * Color channel component order - * (changes will almost certainly cause problems at this time) + * + * \note Changes will almost certainly cause problems at this time. */ #define RCOMP 0 #define GCOMP 1 #define BCOMP 2 #define ACOMP 3 - +#ifndef _HAVE_FULL_GL +#define _HAVE_FULL_GL 1 +#endif /* * Enable/disable features (blocks of code) by setting FEATURE_xyz to 0 or 1. */ +#if _HAVE_FULL_GL #define FEATURE_NV_vertex_program 1 +#define FEATURE_userclip 1 +#define FEATURE_texgen 1 +#define FEATURE_windowpos 1 +#endif #define FEATURE_NV_fragment_program 1 @@ -245,4 +266,12 @@ #define FEATURE_ARB_occlusion_query 1 +/*@}*/ + + +#ifndef _HAVE_FULL_GL +#define _HAVE_FULL_GL 1 +#endif + + #endif /* CONFIG_H */ diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index cd4c6667158..adcdce09cd3 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -1,3 +1,9 @@ +/** + * \file context.c + * Mesa context/visual/framebuffer management functions. + * \author Brian Paul + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,24 +29,81 @@ */ +/** + * \mainpage Mesa Core Module + * + * \section CoreIntroduction Introduction + * + * The Mesa core module consists of all the top-level files in the src + * directory. The core module basically takes care of API dispatch, + * and OpenGL state management. + * + * For example, calls to glPolygonMode() are routed to _mesa_PolygonMode() + * which updates the state related to polygonmode. Furthermore, dirty + * state flags related to polygon mode are set and if the device driver + * implements a special routine for PolygonMode, it will be called. + * + * + * \section AboutDoxygen About Doxygen + * + * If you're viewing this information as Doxygen-generated HTML you'll + * see the documentation index at the top of this page. + * + * The first line lists the Mesa source code modules. + * The second line lists the indexes available for viewing the documentation + * for each module. + * + * Selecting the <b>Main page</b> link will display a summary of the module + * (this page). + * + * Selecting <b>Compound List</b> will list all C structures. + * + * Selecting the <b>File List</b> link will list all the source files in + * the module. + * Selecting a filename will show a list of all functions defined in that file. + * + * Selecting the <b>Compound Members</b> link will display a list of all + * documented structure members. + * + * Selecting the <b>File Members</b> link will display a list + * of all functions, structures, global variables and macros in the module. + * + */ + + #include "glheader.h" #include "imports.h" +#include "accum.h" +#include "attrib.h" +#include "blend.h" #include "buffers.h" -#include "clip.h" +/*#include "clip.h"*/ #include "colortab.h" #include "context.h" +#include "debug.h" +#include "depth.h" #include "dlist.h" #include "eval.h" #include "enums.h" #include "extensions.h" +#include "feedback.h" #include "fog.h" #include "get.h" #include "glthread.h" +#include "histogram.h" +#include "hint.h" #include "hash.h" #include "light.h" +#include "lines.h" #include "macros.h" +#include "matrix.h" +#include "pixel.h" +#include "points.h" +#include "polygon.h" +#include "rastpos.h" #include "simple_list.h" #include "state.h" +#include "stencil.h" #include "teximage.h" #include "texobj.h" #include "texstate.h" @@ -54,11 +117,12 @@ #include "nvfragprog.h" #endif #include "vtxfmt.h" +#if _HAVE_FULL_GL #include "math/m_translate.h" #include "math/m_matrix.h" #include "math/m_xform.h" #include "math/mathmod.h" - +#endif #if defined(MESA_TRACE) #include "Trace/tr_context.h" @@ -86,11 +150,26 @@ free_shared_state( GLcontext *ctx, struct gl_shared_state *ss ); /**********************************************************************/ -/***** OpenGL SI-style interface (new in Mesa 3.5) *****/ -/**********************************************************************/ +/** \name OpenGL SI-style interface (new in Mesa 3.5) + * + * \if subset + * \note Most of these functions are never called in the Mesa subset. + * \endif + */ +/*@{*/ -/* Called by window system/device driver (via gc->exports.destroyCurrent()) - * when the rendering context is to be destroyed. +/** + * Destroy context callback. + * + * \param gc context. + * \return GL_TRUE on success, or GL_FALSE on failure. + * + * \ifnot subset + * Called by window system/device driver (via __GLexports::destroyCurrent) when + * the rendering context is to be destroyed. + * \endif + * + * Frees the context data and the context structure. */ GLboolean _mesa_destroyContext(__GLcontext *gc) @@ -102,8 +181,18 @@ _mesa_destroyContext(__GLcontext *gc) return GL_TRUE; } -/* Called by window system/device driver (via gc->exports.loseCurrent()) +/** + * Unbind context callback. + * + * \param gc context. + * \return GL_TRUE on success, or GL_FALSE on failure. + * + * \ifnot subset + * Called by window system/device driver (via __GLexports::loseCurrent) * when the rendering context is made non-current. + * \endif + * + * No-op */ GLboolean _mesa_loseCurrent(__GLcontext *gc) @@ -112,8 +201,18 @@ _mesa_loseCurrent(__GLcontext *gc) return GL_TRUE; } -/* Called by window system/device driver (via gc->exports.makeCurrent()) +/** + * Bind context callback. + * + * \param gc context. + * \return GL_TRUE on success, or GL_FALSE on failure. + * + * \ifnot subset + * Called by window system/device driver (via __GLexports::makeCurrent) * when the rendering context is made current. + * \endif + * + * No-op */ GLboolean _mesa_makeCurrent(__GLcontext *gc) @@ -122,8 +221,18 @@ _mesa_makeCurrent(__GLcontext *gc) return GL_TRUE; } -/* Called by window system/device driver - yadda, yadda, yadda. - * See above comments. +/** + * Share context callback. + * + * \param gc context. + * \param gcShare shared context. + * \return GL_TRUE on success, or GL_FALSE on failure. + * + * \ifnot subset + * Called by window system/device driver (via __GLexports::shareContext) + * \endif + * + * Update the shared context reference count, gl_shared_state::RefCount. */ GLboolean _mesa_shareContext(__GLcontext *gc, __GLcontext *gcShare) @@ -142,6 +251,11 @@ _mesa_shareContext(__GLcontext *gc, __GLcontext *gcShare) } } + +#if _HAVE_FULL_GL +/** + * Copy context callback. + */ GLboolean _mesa_copyContext(__GLcontext *dst, const __GLcontext *src, GLuint mask) { @@ -153,13 +267,21 @@ _mesa_copyContext(__GLcontext *dst, const __GLcontext *src, GLuint mask) return GL_FALSE; } } +#endif +/** No-op */ GLboolean _mesa_forceCurrent(__GLcontext *gc) { return GL_TRUE; } +/** + * Windows/buffer resizing notification callback. + * + * \param gc GL context. + * \return GL_TRUE on success, or GL_FALSE on failure. + */ GLboolean _mesa_notifyResize(__GLcontext *gc) { @@ -173,14 +295,27 @@ _mesa_notifyResize(__GLcontext *gc) return GL_TRUE; } +/** + * Window/buffer destruction notification callback. + * + * \param gc GL context. + * + * Called when the context's window/buffer is going to be destroyed. + * + * No-op + */ void _mesa_notifyDestroy(__GLcontext *gc) { - /* Called when the context's window/buffer is going to be destroyed. */ /* Unbind from it. */ } -/* Called by window system just before swapping buffers. +/** + * Swap buffers notification callback. + * + * \param gc GL context. + * + * Called by window system just before swapping buffers. * We have to finish any pending rendering. */ void @@ -189,33 +324,48 @@ _mesa_notifySwapBuffers(__GLcontext *gc) FLUSH_VERTICES( gc, 0 ); } +/** No-op */ struct __GLdispatchStateRec * _mesa_dispatchExec(__GLcontext *gc) { return NULL; } +/** No-op */ void _mesa_beginDispatchOverride(__GLcontext *gc) { } +/** No-op */ void _mesa_endDispatchOverride(__GLcontext *gc) { } -/* Setup the exports. The window system will call these functions - * when it needs Mesa to do something. - * NOTE: Device drivers should override these functions! For example, +/** + * \ifnot subset + * Setup the exports. + * + * The window system will call these functions when it needs Mesa to do + * something. + * + * \note Device drivers should override these functions! For example, * the Xlib driver should plug in the XMesa*-style functions into this * structure. The XMesa-style functions should then call the _mesa_* * version of these functions. This is an approximation to OO design * (inheritance and virtual functions). + * \endif + * + * \if subset + * No-op. + * + * \endif */ static void _mesa_init_default_exports(__GLexports *exports) { +#if _HAVE_FULL_GL exports->destroyContext = _mesa_destroyContext; exports->loseCurrent = _mesa_loseCurrent; exports->makeCurrent = _mesa_makeCurrent; @@ -228,11 +378,12 @@ _mesa_init_default_exports(__GLexports *exports) exports->dispatchExec = _mesa_dispatchExec; exports->beginDispatchOverride = _mesa_beginDispatchOverride; exports->endDispatchOverride = _mesa_endDispatchOverride; +#endif } - - -/* exported OpenGL SI interface */ +/** + * Exported OpenGL SI interface. + */ __GLcontext * __glCoreCreateContext(__GLimports *imports, __GLcontextModes *modes) { @@ -249,8 +400,9 @@ __glCoreCreateContext(__GLimports *imports, __GLcontextModes *modes) return ctx; } - -/* exported OpenGL SI interface */ +/** + * Exported OpenGL SI interface. + */ void __glCoreNopDispatch(void) { @@ -263,28 +415,38 @@ __glCoreNopDispatch(void) #endif } +/*@}*/ + /**********************************************************************/ -/***** GL Visual allocation/destruction *****/ +/** \name GL Visual allocation/destruction */ /**********************************************************************/ +/*@{*/ - -/* +/** * Allocate a new GLvisual object. - * Input: rgbFlag - GL_TRUE=RGB(A) mode, GL_FALSE=Color Index mode - * dbFlag - double buffering? - * stereoFlag - stereo buffer? - * depthBits - requested bits per depth buffer value - * Any value in [0, 32] is acceptable but the actual - * depth type will be GLushort or GLuint as needed. - * stencilBits - requested minimum bits per stencil buffer value - * accumBits - requested minimum bits per accum buffer component - * indexBits - number of bits per pixel if rgbFlag==GL_FALSE - * red/green/blue/alphaBits - number of bits per color component - * in frame buffer for RGB(A) mode. - * We always use 8 in core Mesa though. - * Return: pointer to new GLvisual or NULL if requested parameters can't - * be met. + * + * \param rgbFlag GL_TRUE for RGB(A) mode, GL_FALSE for Color Index mode. + * \param dbFlag double buffering + * \param stereoFlag stereo buffer + * \param depthBits requested bits per depth buffer value. Any value in [0, 32] + * is acceptable but the actual depth type will be GLushort or GLuint as + * needed. + * \param stencilBits requested minimum bits per stencil buffer value + * \param accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits number of bits per color component in accum buffer. + * \param indexBits number of bits per pixel if \p rgbFlag is GL_FALSE + * \param redBits number of bits per color component in frame buffer for RGB(A) + * mode. We always use 8 in core Mesa though. + * \param greenBits same as above. + * \param blueBits same as above. + * \param alphaBits same as above. + * \param numSamples not really used. + * + * \return pointer to new GLvisual or NULL if requested parameters can't be + * met. + * + * Allocates a GLvisual structure and initializes it via + * _mesa_initialize_visual(). */ GLvisual * _mesa_create_visual( GLboolean rgbFlag, @@ -318,12 +480,15 @@ _mesa_create_visual( GLboolean rgbFlag, return vis; } - -/* +/** * Initialize the fields of the given GLvisual. - * Input: see _mesa_create_visual() above. - * Return: GL_TRUE = success - * GL_FALSE = failure. + * + * \return GL_TRUE on success, or GL_FALSE on failure. + * + * \sa _mesa_create_visual() above for the parameter description. + * + * Makes some sanity checks and fills in the fields of the + * GLvisual structure with the given parameters. */ GLboolean _mesa_initialize_visual( GLvisual *vis, @@ -400,29 +565,43 @@ _mesa_initialize_visual( GLvisual *vis, return GL_TRUE; } - +/** + * Destroy a visual. + * + * \param vis visual. + * + * Frees the visual structure. + */ void _mesa_destroy_visual( GLvisual *vis ) { FREE(vis); } +/*@}*/ + /**********************************************************************/ -/***** GL Framebuffer allocation/destruction *****/ +/** \name GL Framebuffer allocation/destruction */ /**********************************************************************/ +/*@{*/ - -/* - * Create a new framebuffer. A GLframebuffer is a struct which - * encapsulates the depth, stencil and accum buffers and related - * parameters. - * Input: visual - a GLvisual pointer (we copy the struct contents) - * softwareDepth - create/use a software depth buffer? - * softwareStencil - create/use a software stencil buffer? - * softwareAccum - create/use a software accum buffer? - * softwareAlpha - create/use a software alpha buffer? - * Return: pointer to new GLframebuffer struct or NULL if error. +/** + * Create a new framebuffer. + * + * A GLframebuffer is a structure which encapsulates the depth, stencil and + * accum buffers and related parameters. + * + * \param visual a GLvisual pointer (we copy the struct contents) + * \param softwareDepth create/use a software depth buffer? + * \param softwareStencil create/use a software stencil buffer? + * \param softwareAccum create/use a software accum buffer? + * \param softwareAlpha create/use a software alpha buffer? + * + * \return pointer to new GLframebuffer struct or NULL if error. + * + * Allocate a GLframebuffer structure and initializes it via + * _mesa_initialize_framebuffer(). */ GLframebuffer * _mesa_create_framebuffer( const GLvisual *visual, @@ -441,10 +620,13 @@ _mesa_create_framebuffer( const GLvisual *visual, return buffer; } - -/* +/** * Initialize a GLframebuffer object. - * Input: See _mesa_create_framebuffer() above. + * + * \sa _mesa_create_framebuffer() above for the parameter description. + * + * Makes some sanity checks and fills in the fields of the + * GLframebuffer structure with the given parameters. */ void _mesa_initialize_framebuffer( GLframebuffer *buffer, @@ -484,9 +666,10 @@ _mesa_initialize_framebuffer( GLframebuffer *buffer, buffer->UseSoftwareAlphaBuffers = softwareAlpha; } - -/* +/** * Free a framebuffer struct and its buffers. + * + * Calls _mesa_free_framebuffer_data() and frees the structure. */ void _mesa_destroy_framebuffer( GLframebuffer *buffer ) @@ -497,9 +680,12 @@ _mesa_destroy_framebuffer( GLframebuffer *buffer ) } } - -/* - * Free the data hanging off of <buffer>, but not <buffer> itself. +/** + * Free the data hanging off of \p buffer, but not \p buffer itself. + * + * \param buffer framebuffer. + * + * Frees all the buffers associated with the structure. */ void _mesa_free_framebuffer_data( GLframebuffer *buffer ) @@ -539,18 +725,33 @@ _mesa_free_framebuffer_data( GLframebuffer *buffer ) } } +/*@}*/ /**********************************************************************/ -/***** Context allocation, initialization, destroying *****/ +/** \name Context allocation, initialization, destroying + * + * The purpose of the most initialization functions here is to provide the + * default state values according to the OpenGL specification. + */ /**********************************************************************/ +/*@{*/ - +/** + * One-time initialization mutex lock. + * + * \sa Used by one_time_init(). + */ _glthread_DECLARE_STATIC_MUTEX(OneTimeLock); - -/* - * This function just calls all the various one-time-init functions in Mesa. +/** + * Calls all the various one-time-init functions in Mesa. + * + * While holding a global mutex lock, calls several initialization functions, + * and sets the glapi callbacks if the \c MESA_DEBUG environment variable is + * defined. + * + * \sa _mesa_init_lists(), _math_init(). */ static void one_time_init( GLcontext *ctx ) @@ -570,11 +771,13 @@ one_time_init( GLcontext *ctx ) _mesa_init_lists(); +#if _HAVE_FULL_GL _math_init(); for (i = 0; i < 256; i++) { _mesa_ubyte_to_float_color_tab[i] = (float) i / 255.0F; } +#endif #ifdef USE_SPARC_ASM _mesa_init_sparc_glapi_relocs(); @@ -602,40 +805,15 @@ one_time_init( GLcontext *ctx ) _glthread_UNLOCK_MUTEX(OneTimeLock); } - -static void -init_matrix_stack( struct matrix_stack *stack, - GLuint maxDepth, GLuint dirtyFlag ) -{ - GLuint i; - - stack->Depth = 0; - stack->MaxDepth = maxDepth; - stack->DirtyFlag = dirtyFlag; - /* The stack */ - stack->Stack = (GLmatrix *) CALLOC(maxDepth * sizeof(GLmatrix)); - for (i = 0; i < maxDepth; i++) { - _math_matrix_ctr(&stack->Stack[i]); - _math_matrix_alloc_inv(&stack->Stack[i]); - } - stack->Top = stack->Stack; -} - - -static void -free_matrix_stack( struct matrix_stack *stack ) -{ - GLuint i; - for (i = 0; i < stack->MaxDepth; i++) { - _math_matrix_dtr(&stack->Stack[i]); - } - FREE(stack->Stack); - stack->Stack = stack->Top = NULL; -} - - -/* +/** * Allocate and initialize a shared context state structure. + * + * \return pointer to a gl_shared_state structure on success, or NULL on + * failure. + * + * Initializes the display list, texture objects and vertex programs hash + * tables, allocates the texture objects. If it runs out of memory, frees + * everything already allocated before returning NULL. */ static GLboolean alloc_shared_state( GLcontext *ctx ) @@ -735,9 +913,17 @@ alloc_shared_state( GLcontext *ctx ) return GL_FALSE; } - -/* +/** * Deallocate a shared state context and all children structures. + * + * \param ctx GL context. + * \param ss shared state pointer. + * + * Frees the display lists, the texture objects (calling the driver texture + * deletion callback to free its private data) and the vertex programs, as well + * as their hash tables. + * + * \sa alloc_shared_state(). */ static void free_shared_state( GLcontext *ctx, struct gl_shared_state *ss ) @@ -795,166 +981,30 @@ free_shared_state( GLcontext *ctx, struct gl_shared_state *ss ) } - -/* - * Initialize the nth light. Note that the defaults for light 0 are - * different than the other lights. - */ -static void -init_light( struct gl_light *l, GLuint n ) +static void _mesa_init_current( GLcontext *ctx ) { - make_empty_list( l ); - - ASSIGN_4V( l->Ambient, 0.0, 0.0, 0.0, 1.0 ); - if (n==0) { - ASSIGN_4V( l->Diffuse, 1.0, 1.0, 1.0, 1.0 ); - ASSIGN_4V( l->Specular, 1.0, 1.0, 1.0, 1.0 ); - } - else { - ASSIGN_4V( l->Diffuse, 0.0, 0.0, 0.0, 1.0 ); - ASSIGN_4V( l->Specular, 0.0, 0.0, 0.0, 1.0 ); - } - ASSIGN_4V( l->EyePosition, 0.0, 0.0, 1.0, 0.0 ); - ASSIGN_3V( l->EyeDirection, 0.0, 0.0, -1.0 ); - l->SpotExponent = 0.0; - _mesa_invalidate_spot_exp_table( l ); - l->SpotCutoff = 180.0; - l->_CosCutoff = 0.0; /* KW: -ve values not admitted */ - l->ConstantAttenuation = 1.0; - l->LinearAttenuation = 0.0; - l->QuadraticAttenuation = 0.0; - l->Enabled = GL_FALSE; -} - - - -static void -init_lightmodel( struct gl_lightmodel *lm ) -{ - ASSIGN_4V( lm->Ambient, 0.2F, 0.2F, 0.2F, 1.0F ); - lm->LocalViewer = GL_FALSE; - lm->TwoSide = GL_FALSE; - lm->ColorControl = GL_SINGLE_COLOR; -} - - -static void -init_material( struct gl_material *m ) -{ - ASSIGN_4V( m->Ambient, 0.2F, 0.2F, 0.2F, 1.0F ); - ASSIGN_4V( m->Diffuse, 0.8F, 0.8F, 0.8F, 1.0F ); - ASSIGN_4V( m->Specular, 0.0F, 0.0F, 0.0F, 1.0F ); - ASSIGN_4V( m->Emission, 0.0F, 0.0F, 0.0F, 1.0F ); - m->Shininess = 0.0; - m->AmbientIndex = 0; - m->DiffuseIndex = 1; - m->SpecularIndex = 1; -} - + int i; - -static void -init_texture_unit( GLcontext *ctx, GLuint unit ) -{ - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - - texUnit->EnvMode = GL_MODULATE; - texUnit->CombineModeRGB = GL_MODULATE; - texUnit->CombineModeA = GL_MODULATE; - texUnit->CombineSourceRGB[0] = GL_TEXTURE; - texUnit->CombineSourceRGB[1] = GL_PREVIOUS_EXT; - texUnit->CombineSourceRGB[2] = GL_CONSTANT_EXT; - texUnit->CombineSourceA[0] = GL_TEXTURE; - texUnit->CombineSourceA[1] = GL_PREVIOUS_EXT; - texUnit->CombineSourceA[2] = GL_CONSTANT_EXT; - texUnit->CombineOperandRGB[0] = GL_SRC_COLOR; - texUnit->CombineOperandRGB[1] = GL_SRC_COLOR; - texUnit->CombineOperandRGB[2] = GL_SRC_ALPHA; - texUnit->CombineOperandA[0] = GL_SRC_ALPHA; - texUnit->CombineOperandA[1] = GL_SRC_ALPHA; - texUnit->CombineOperandA[2] = GL_SRC_ALPHA; - texUnit->CombineScaleShiftRGB = 0; - texUnit->CombineScaleShiftA = 0; - - ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 ); - texUnit->TexGenEnabled = 0; - texUnit->GenModeS = GL_EYE_LINEAR; - texUnit->GenModeT = GL_EYE_LINEAR; - texUnit->GenModeR = GL_EYE_LINEAR; - texUnit->GenModeQ = GL_EYE_LINEAR; - texUnit->_GenBitS = TEXGEN_EYE_LINEAR; - texUnit->_GenBitT = TEXGEN_EYE_LINEAR; - texUnit->_GenBitR = TEXGEN_EYE_LINEAR; - texUnit->_GenBitQ = TEXGEN_EYE_LINEAR; - - /* Yes, these plane coefficients are correct! */ - ASSIGN_4V( texUnit->ObjectPlaneS, 1.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->ObjectPlaneT, 0.0, 1.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->ObjectPlaneR, 0.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->ObjectPlaneQ, 0.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->EyePlaneS, 1.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->EyePlaneT, 0.0, 1.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->EyePlaneR, 0.0, 0.0, 0.0, 0.0 ); - ASSIGN_4V( texUnit->EyePlaneQ, 0.0, 0.0, 0.0, 0.0 ); - - texUnit->Current1D = ctx->Shared->Default1D; - texUnit->Current2D = ctx->Shared->Default2D; - texUnit->Current3D = ctx->Shared->Default3D; - texUnit->CurrentCubeMap = ctx->Shared->DefaultCubeMap; - texUnit->CurrentRect = ctx->Shared->DefaultRect; - - /* GL_SGI_texture_color_table */ - texUnit->ColorTableEnabled = GL_FALSE; - _mesa_init_colortable(&texUnit->ColorTable); - _mesa_init_colortable(&texUnit->ProxyColorTable); -} - - - - -/* Initialize a 1-D evaluator map */ -static void -init_1d_map( struct gl_1d_map *map, int n, const float *initial ) -{ - map->Order = 1; - map->u1 = 0.0; - map->u2 = 1.0; - map->Points = (GLfloat *) MALLOC(n * sizeof(GLfloat)); - if (map->Points) { - GLint i; - for (i=0;i<n;i++) - map->Points[i] = initial[i]; - } -} - - -/* Initialize a 2-D evaluator map */ -static void -init_2d_map( struct gl_2d_map *map, int n, const float *initial ) -{ - map->Uorder = 1; - map->Vorder = 1; - map->u1 = 0.0; - map->u2 = 1.0; - map->v1 = 0.0; - map->v2 = 1.0; - map->Points = (GLfloat *) MALLOC(n * sizeof(GLfloat)); - if (map->Points) { - GLint i; - for (i=0;i<n;i++) - map->Points[i] = initial[i]; + /* Current group */ + for (i = 0; i < VERT_ATTRIB_MAX; i++) { + ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 ); } + /* special cases: */ + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR1], 0.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_FOG], 0.0, 0.0, 0.0, 0.0 ); + for (i = 0; i < MAX_TEXTURE_UNITS; i++) + ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_TEX0 + i], 0.0, 0.0, 0.0, 1.0); + ctx->Current.Index = 1; + ctx->Current.EdgeFlag = GL_TRUE; } -/* - * Initialize the attribute groups in a GLcontext. - */ -static void -init_attrib_groups( GLcontext *ctx ) +static void +_mesa_init_constants( GLcontext *ctx ) { - GLuint i; - assert(ctx); assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS); @@ -1013,678 +1063,83 @@ init_attrib_groups( GLcontext *ctx ) ctx->Const.MaxProgramMatrixStackDepth = MAX_PROGRAM_MATRIX_STACK_DEPTH; ASSERT(ctx->Const.MaxTextureUnits == MAX2(ctx->Const.MaxTextureImageUnits, ctx->Const.MaxTextureCoordUnits)); +} - /* Initialize matrix stacks */ - init_matrix_stack(&ctx->ModelviewMatrixStack, MAX_MODELVIEW_STACK_DEPTH, - _NEW_MODELVIEW); - init_matrix_stack(&ctx->ProjectionMatrixStack, MAX_PROJECTION_STACK_DEPTH, - _NEW_PROJECTION); - init_matrix_stack(&ctx->ColorMatrixStack, MAX_COLOR_STACK_DEPTH, - _NEW_COLOR_MATRIX); - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) - init_matrix_stack(&ctx->TextureMatrixStack[i], MAX_TEXTURE_STACK_DEPTH, - _NEW_TEXTURE_MATRIX); - for (i = 0; i < MAX_PROGRAM_MATRICES; i++) - init_matrix_stack(&ctx->ProgramMatrixStack[i], - MAX_PROGRAM_MATRIX_STACK_DEPTH, _NEW_TRACK_MATRIX); - ctx->CurrentStack = &ctx->ModelviewMatrixStack; - - /* Init combined Modelview*Projection matrix */ - _math_matrix_ctr( &ctx->_ModelProjectMatrix ); - - /* Accumulate buffer group */ - ASSIGN_4V( ctx->Accum.ClearColor, 0.0, 0.0, 0.0, 0.0 ); - - /* Color buffer group */ - ctx->Color.IndexMask = 0xffffffff; - ctx->Color.ColorMask[0] = 0xff; - ctx->Color.ColorMask[1] = 0xff; - ctx->Color.ColorMask[2] = 0xff; - ctx->Color.ColorMask[3] = 0xff; - ctx->Color.ClearIndex = 0; - ASSIGN_4V( ctx->Color.ClearColor, 0, 0, 0, 0 ); - ctx->Color.DrawBuffer = GL_FRONT; - ctx->Color.AlphaEnabled = GL_FALSE; - ctx->Color.AlphaFunc = GL_ALWAYS; - ctx->Color.AlphaRef = 0; - ctx->Color.BlendEnabled = GL_FALSE; - ctx->Color.BlendSrcRGB = GL_ONE; - ctx->Color.BlendDstRGB = GL_ZERO; - ctx->Color.BlendSrcA = GL_ONE; - ctx->Color.BlendDstA = GL_ZERO; - ctx->Color.BlendEquation = GL_FUNC_ADD_EXT; - ASSIGN_4V( ctx->Color.BlendColor, 0.0, 0.0, 0.0, 0.0 ); - ctx->Color.IndexLogicOpEnabled = GL_FALSE; - ctx->Color.ColorLogicOpEnabled = GL_FALSE; - ctx->Color.LogicOp = GL_COPY; - ctx->Color.DitherFlag = GL_TRUE; +/** + * Initialize the attribute groups in a GL context. + * + * \param ctx GL context. + * + * Initializes all the attributes, calling the respective <tt>init*</tt> + * functions for the more complex data structures. + */ +static GLboolean +init_attrib_groups( GLcontext *ctx ) +{ + assert(ctx); - /* Current group */ - for (i = 0; i < VERT_ATTRIB_MAX; i++) { - ASSIGN_4V( ctx->Current.Attrib[i], 0.0, 0.0, 0.0, 1.0 ); - } - /* special cases: */ - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_WEIGHT], 1.0, 0.0, 0.0, 1.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_NORMAL], 0.0, 0.0, 1.0, 1.0 ); - ASSIGN_4V( ctx->Current.Attrib[VERT_ATTRIB_COLOR0], 1.0, 1.0, 1.0, 1.0 ); - ctx->Current.Index = 1; - ctx->Current.EdgeFlag = GL_TRUE; - - ASSIGN_4V( ctx->Current.RasterPos, 0.0, 0.0, 0.0, 1.0 ); - ctx->Current.RasterDistance = 0.0; - ASSIGN_4V( ctx->Current.RasterColor, 1.0, 1.0, 1.0, 1.0 ); - ASSIGN_4V( ctx->Current.RasterSecondaryColor, 0.0, 0.0, 0.0, 0.0 ); - ctx->Current.RasterIndex = 1; - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) - ASSIGN_4V( ctx->Current.RasterTexCoords[i], 0.0, 0.0, 0.0, 1.0 ); - ctx->Current.RasterPosValid = GL_TRUE; - - - /* Depth buffer group */ - ctx->Depth.Test = GL_FALSE; - ctx->Depth.Clear = 1.0; - ctx->Depth.Func = GL_LESS; - ctx->Depth.Mask = GL_TRUE; - ctx->Depth.OcclusionTest = GL_FALSE; - ctx->Depth.BoundsTest = GL_FALSE; - ctx->Depth.BoundsMin = 0.0F; - ctx->Depth.BoundsMax = 1.0F; - - /* Evaluators group */ - ctx->Eval.Map1Color4 = GL_FALSE; - ctx->Eval.Map1Index = GL_FALSE; - ctx->Eval.Map1Normal = GL_FALSE; - ctx->Eval.Map1TextureCoord1 = GL_FALSE; - ctx->Eval.Map1TextureCoord2 = GL_FALSE; - ctx->Eval.Map1TextureCoord3 = GL_FALSE; - ctx->Eval.Map1TextureCoord4 = GL_FALSE; - ctx->Eval.Map1Vertex3 = GL_FALSE; - ctx->Eval.Map1Vertex4 = GL_FALSE; - MEMSET(ctx->Eval.Map1Attrib, 0, sizeof(ctx->Eval.Map1Attrib)); - ctx->Eval.Map2Color4 = GL_FALSE; - ctx->Eval.Map2Index = GL_FALSE; - ctx->Eval.Map2Normal = GL_FALSE; - ctx->Eval.Map2TextureCoord1 = GL_FALSE; - ctx->Eval.Map2TextureCoord2 = GL_FALSE; - ctx->Eval.Map2TextureCoord3 = GL_FALSE; - ctx->Eval.Map2TextureCoord4 = GL_FALSE; - ctx->Eval.Map2Vertex3 = GL_FALSE; - ctx->Eval.Map2Vertex4 = GL_FALSE; - MEMSET(ctx->Eval.Map2Attrib, 0, sizeof(ctx->Eval.Map2Attrib)); - ctx->Eval.AutoNormal = GL_FALSE; - ctx->Eval.MapGrid1un = 1; - ctx->Eval.MapGrid1u1 = 0.0; - ctx->Eval.MapGrid1u2 = 1.0; - ctx->Eval.MapGrid2un = 1; - ctx->Eval.MapGrid2vn = 1; - ctx->Eval.MapGrid2u1 = 0.0; - ctx->Eval.MapGrid2u2 = 1.0; - ctx->Eval.MapGrid2v1 = 0.0; - ctx->Eval.MapGrid2v2 = 1.0; - - /* Evaluator data */ - { - static GLfloat vertex[4] = { 0.0, 0.0, 0.0, 1.0 }; - static GLfloat normal[3] = { 0.0, 0.0, 1.0 }; - static GLfloat index[1] = { 1.0 }; - static GLfloat color[4] = { 1.0, 1.0, 1.0, 1.0 }; - static GLfloat texcoord[4] = { 0.0, 0.0, 0.0, 1.0 }; - static GLfloat attrib[4] = { 0.0, 0.0, 0.0, 1.0 }; - - init_1d_map( &ctx->EvalMap.Map1Vertex3, 3, vertex ); - init_1d_map( &ctx->EvalMap.Map1Vertex4, 4, vertex ); - init_1d_map( &ctx->EvalMap.Map1Index, 1, index ); - init_1d_map( &ctx->EvalMap.Map1Color4, 4, color ); - init_1d_map( &ctx->EvalMap.Map1Normal, 3, normal ); - init_1d_map( &ctx->EvalMap.Map1Texture1, 1, texcoord ); - init_1d_map( &ctx->EvalMap.Map1Texture2, 2, texcoord ); - init_1d_map( &ctx->EvalMap.Map1Texture3, 3, texcoord ); - init_1d_map( &ctx->EvalMap.Map1Texture4, 4, texcoord ); - for (i = 0; i < 16; i++) - init_1d_map( ctx->EvalMap.Map1Attrib + i, 4, attrib ); - - init_2d_map( &ctx->EvalMap.Map2Vertex3, 3, vertex ); - init_2d_map( &ctx->EvalMap.Map2Vertex4, 4, vertex ); - init_2d_map( &ctx->EvalMap.Map2Index, 1, index ); - init_2d_map( &ctx->EvalMap.Map2Color4, 4, color ); - init_2d_map( &ctx->EvalMap.Map2Normal, 3, normal ); - init_2d_map( &ctx->EvalMap.Map2Texture1, 1, texcoord ); - init_2d_map( &ctx->EvalMap.Map2Texture2, 2, texcoord ); - init_2d_map( &ctx->EvalMap.Map2Texture3, 3, texcoord ); - init_2d_map( &ctx->EvalMap.Map2Texture4, 4, texcoord ); - for (i = 0; i < 16; i++) - init_2d_map( ctx->EvalMap.Map2Attrib + i, 4, attrib ); - } - - /* Fog group */ - ctx->Fog.Enabled = GL_FALSE; - ctx->Fog.Mode = GL_EXP; - ASSIGN_4V( ctx->Fog.Color, 0.0, 0.0, 0.0, 0.0 ); - ctx->Fog.Index = 0.0; - ctx->Fog.Density = 1.0; - ctx->Fog.Start = 0.0; - ctx->Fog.End = 1.0; - ctx->Fog.ColorSumEnabled = GL_FALSE; - ctx->Fog.FogCoordinateSource = GL_FRAGMENT_DEPTH_EXT; - - /* Hint group */ - ctx->Hint.PerspectiveCorrection = GL_DONT_CARE; - ctx->Hint.PointSmooth = GL_DONT_CARE; - ctx->Hint.LineSmooth = GL_DONT_CARE; - ctx->Hint.PolygonSmooth = GL_DONT_CARE; - ctx->Hint.Fog = GL_DONT_CARE; - ctx->Hint.ClipVolumeClipping = GL_DONT_CARE; - ctx->Hint.TextureCompression = GL_DONT_CARE; - ctx->Hint.GenerateMipmap = GL_DONT_CARE; - - /* Histogram group */ - ctx->Histogram.Width = 0; - ctx->Histogram.Format = GL_RGBA; - ctx->Histogram.Sink = GL_FALSE; - ctx->Histogram.RedSize = 0; - ctx->Histogram.GreenSize = 0; - ctx->Histogram.BlueSize = 0; - ctx->Histogram.AlphaSize = 0; - ctx->Histogram.LuminanceSize = 0; - for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { - ctx->Histogram.Count[i][0] = 0; - ctx->Histogram.Count[i][1] = 0; - ctx->Histogram.Count[i][2] = 0; - ctx->Histogram.Count[i][3] = 0; - } - - /* Min/Max group */ - ctx->MinMax.Format = GL_RGBA; - ctx->MinMax.Sink = GL_FALSE; - ctx->MinMax.Min[RCOMP] = 1000; ctx->MinMax.Max[RCOMP] = -1000; - ctx->MinMax.Min[GCOMP] = 1000; ctx->MinMax.Max[GCOMP] = -1000; - ctx->MinMax.Min[BCOMP] = 1000; ctx->MinMax.Max[BCOMP] = -1000; - ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; + /* Constants */ + _mesa_init_constants( ctx ); /* Extensions */ _mesa_init_extensions( ctx ); - /* Lighting group */ - for (i=0;i<MAX_LIGHTS;i++) { - init_light( &ctx->Light.Light[i], i ); - } - make_empty_list( &ctx->Light.EnabledList ); - - init_lightmodel( &ctx->Light.Model ); - init_material( &ctx->Light.Material[0] ); - init_material( &ctx->Light.Material[1] ); - ctx->Light.ShadeModel = GL_SMOOTH; - ctx->Light.Enabled = GL_FALSE; - ctx->Light.ColorMaterialFace = GL_FRONT_AND_BACK; - ctx->Light.ColorMaterialMode = GL_AMBIENT_AND_DIFFUSE; - ctx->Light.ColorMaterialBitmask = _mesa_material_bitmask( ctx, - GL_FRONT_AND_BACK, - GL_AMBIENT_AND_DIFFUSE, ~0, 0 ); - - ctx->Light.ColorMaterialEnabled = GL_FALSE; - - /* Lighting miscellaneous */ - ctx->_ShineTabList = MALLOC_STRUCT( gl_shine_tab ); - make_empty_list( ctx->_ShineTabList ); - for (i = 0 ; i < 10 ; i++) { - struct gl_shine_tab *s = MALLOC_STRUCT( gl_shine_tab ); - s->shininess = -1; - s->refcount = 0; - insert_at_tail( ctx->_ShineTabList, s ); - } - - - /* Line group */ - ctx->Line.SmoothFlag = GL_FALSE; - ctx->Line.StippleFlag = GL_FALSE; - ctx->Line.Width = 1.0; - ctx->Line._Width = 1.0; - ctx->Line.StipplePattern = 0xffff; - ctx->Line.StippleFactor = 1; - - /* Display List group */ - ctx->List.ListBase = 0; - - /* Multisample */ - ctx->Multisample.Enabled = GL_FALSE; - ctx->Multisample.SampleAlphaToCoverage = GL_FALSE; - ctx->Multisample.SampleAlphaToOne = GL_FALSE; - ctx->Multisample.SampleCoverage = GL_FALSE; - ctx->Multisample.SampleCoverageValue = 1.0; - ctx->Multisample.SampleCoverageInvert = GL_FALSE; - - /* Pixel group */ - ctx->Pixel.RedBias = 0.0; - ctx->Pixel.RedScale = 1.0; - ctx->Pixel.GreenBias = 0.0; - ctx->Pixel.GreenScale = 1.0; - ctx->Pixel.BlueBias = 0.0; - ctx->Pixel.BlueScale = 1.0; - ctx->Pixel.AlphaBias = 0.0; - ctx->Pixel.AlphaScale = 1.0; - ctx->Pixel.DepthBias = 0.0; - ctx->Pixel.DepthScale = 1.0; - ctx->Pixel.IndexOffset = 0; - ctx->Pixel.IndexShift = 0; - ctx->Pixel.ZoomX = 1.0; - ctx->Pixel.ZoomY = 1.0; - ctx->Pixel.MapColorFlag = GL_FALSE; - ctx->Pixel.MapStencilFlag = GL_FALSE; - ctx->Pixel.MapStoSsize = 1; - ctx->Pixel.MapItoIsize = 1; - ctx->Pixel.MapItoRsize = 1; - ctx->Pixel.MapItoGsize = 1; - ctx->Pixel.MapItoBsize = 1; - ctx->Pixel.MapItoAsize = 1; - ctx->Pixel.MapRtoRsize = 1; - ctx->Pixel.MapGtoGsize = 1; - ctx->Pixel.MapBtoBsize = 1; - ctx->Pixel.MapAtoAsize = 1; - ctx->Pixel.MapStoS[0] = 0; - ctx->Pixel.MapItoI[0] = 0; - ctx->Pixel.MapItoR[0] = 0.0; - ctx->Pixel.MapItoG[0] = 0.0; - ctx->Pixel.MapItoB[0] = 0.0; - ctx->Pixel.MapItoA[0] = 0.0; - ctx->Pixel.MapItoR8[0] = 0; - ctx->Pixel.MapItoG8[0] = 0; - ctx->Pixel.MapItoB8[0] = 0; - ctx->Pixel.MapItoA8[0] = 0; - ctx->Pixel.MapRtoR[0] = 0.0; - ctx->Pixel.MapGtoG[0] = 0.0; - ctx->Pixel.MapBtoB[0] = 0.0; - ctx->Pixel.MapAtoA[0] = 0.0; - ctx->Pixel.HistogramEnabled = GL_FALSE; - ctx->Pixel.MinMaxEnabled = GL_FALSE; - ctx->Pixel.PixelTextureEnabled = GL_FALSE; - ctx->Pixel.FragmentRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; - ctx->Pixel.FragmentAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; - ASSIGN_4V(ctx->Pixel.PostColorMatrixScale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.PostColorMatrixBias, 0.0, 0.0, 0.0, 0.0); - ASSIGN_4V(ctx->Pixel.ColorTableScale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.ColorTableBias, 0.0, 0.0, 0.0, 0.0); - ASSIGN_4V(ctx->Pixel.PCCTscale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.PCCTbias, 0.0, 0.0, 0.0, 0.0); - ASSIGN_4V(ctx->Pixel.PCMCTscale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.PCMCTbias, 0.0, 0.0, 0.0, 0.0); - ctx->Pixel.ColorTableEnabled = GL_FALSE; - ctx->Pixel.PostConvolutionColorTableEnabled = GL_FALSE; - ctx->Pixel.PostColorMatrixColorTableEnabled = GL_FALSE; - ctx->Pixel.Convolution1DEnabled = GL_FALSE; - ctx->Pixel.Convolution2DEnabled = GL_FALSE; - ctx->Pixel.Separable2DEnabled = GL_FALSE; - for (i = 0; i < 3; i++) { - ASSIGN_4V(ctx->Pixel.ConvolutionBorderColor[i], 0.0, 0.0, 0.0, 0.0); - ctx->Pixel.ConvolutionBorderMode[i] = GL_REDUCE; - ASSIGN_4V(ctx->Pixel.ConvolutionFilterScale[i], 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.ConvolutionFilterBias[i], 0.0, 0.0, 0.0, 0.0); - } - for (i = 0; i < MAX_CONVOLUTION_WIDTH * MAX_CONVOLUTION_WIDTH * 4; i++) { - ctx->Convolution1D.Filter[i] = 0.0; - ctx->Convolution2D.Filter[i] = 0.0; - ctx->Separable2D.Filter[i] = 0.0; - } - ASSIGN_4V(ctx->Pixel.PostConvolutionScale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.PostConvolutionBias, 0.0, 0.0, 0.0, 0.0); - /* GL_SGI_texture_color_table */ - ASSIGN_4V(ctx->Pixel.TextureColorTableScale, 1.0, 1.0, 1.0, 1.0); - ASSIGN_4V(ctx->Pixel.TextureColorTableBias, 0.0, 0.0, 0.0, 0.0); - - /* Point group */ - ctx->Point.SmoothFlag = GL_FALSE; - ctx->Point.Size = 1.0; - ctx->Point._Size = 1.0; - ctx->Point.Params[0] = 1.0; - ctx->Point.Params[1] = 0.0; - ctx->Point.Params[2] = 0.0; - ctx->Point._Attenuated = GL_FALSE; - ctx->Point.MinSize = 0.0; - ctx->Point.MaxSize = ctx->Const.MaxPointSize; - ctx->Point.Threshold = 1.0; - ctx->Point.PointSprite = GL_FALSE; /* GL_NV_point_sprite */ - ctx->Point.SpriteRMode = GL_ZERO; /* GL_NV_point_sprite */ - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - ctx->Point.CoordReplace[i] = GL_FALSE; /* GL_NV_point_sprite */ - } - - /* Polygon group */ - ctx->Polygon.CullFlag = GL_FALSE; - ctx->Polygon.CullFaceMode = GL_BACK; - ctx->Polygon.FrontFace = GL_CCW; - ctx->Polygon._FrontBit = 0; - ctx->Polygon.FrontMode = GL_FILL; - ctx->Polygon.BackMode = GL_FILL; - ctx->Polygon.SmoothFlag = GL_FALSE; - ctx->Polygon.StippleFlag = GL_FALSE; - ctx->Polygon.OffsetFactor = 0.0F; - ctx->Polygon.OffsetUnits = 0.0F; - ctx->Polygon.OffsetPoint = GL_FALSE; - ctx->Polygon.OffsetLine = GL_FALSE; - ctx->Polygon.OffsetFill = GL_FALSE; - - /* Polygon Stipple group */ - MEMSET( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) ); - - /* Scissor group */ - ctx->Scissor.Enabled = GL_FALSE; - ctx->Scissor.X = 0; - ctx->Scissor.Y = 0; - ctx->Scissor.Width = 0; - ctx->Scissor.Height = 0; - - /* Stencil group */ - ctx->Stencil.Enabled = GL_FALSE; - ctx->Stencil.TestTwoSide = GL_FALSE; - ctx->Stencil.ActiveFace = 0; /* 0 = GL_FRONT, 1 = GL_BACK */ - ctx->Stencil.Function[0] = GL_ALWAYS; - ctx->Stencil.Function[1] = GL_ALWAYS; - ctx->Stencil.FailFunc[0] = GL_KEEP; - ctx->Stencil.FailFunc[1] = GL_KEEP; - ctx->Stencil.ZPassFunc[0] = GL_KEEP; - ctx->Stencil.ZPassFunc[1] = GL_KEEP; - ctx->Stencil.ZFailFunc[0] = GL_KEEP; - ctx->Stencil.ZFailFunc[1] = GL_KEEP; - ctx->Stencil.Ref[0] = 0; - ctx->Stencil.Ref[1] = 0; - ctx->Stencil.ValueMask[0] = STENCIL_MAX; - ctx->Stencil.ValueMask[1] = STENCIL_MAX; - ctx->Stencil.WriteMask[0] = STENCIL_MAX; - ctx->Stencil.WriteMask[1] = STENCIL_MAX; - ctx->Stencil.Clear = 0; - - /* Texture group */ - ctx->Texture.CurrentUnit = 0; /* multitexture */ - ctx->Texture._EnabledUnits = 0; - for (i=0; i<MAX_TEXTURE_UNITS; i++) - init_texture_unit( ctx, i ); - ctx->Texture.SharedPalette = GL_FALSE; - _mesa_init_colortable(&ctx->Texture.Palette); - - /* Transformation group */ - ctx->Transform.MatrixMode = GL_MODELVIEW; - ctx->Transform.Normalize = GL_FALSE; - ctx->Transform.RescaleNormals = GL_FALSE; - ctx->Transform.RasterPositionUnclipped = GL_FALSE; - for (i=0;i<MAX_CLIP_PLANES;i++) { - ASSIGN_4V( ctx->Transform.EyeUserPlane[i], 0.0, 0.0, 0.0, 0.0 ); - } - ctx->Transform.ClipPlanesEnabled = 0; - - /* Viewport group */ - ctx->Viewport.X = 0; - ctx->Viewport.Y = 0; - ctx->Viewport.Width = 0; - ctx->Viewport.Height = 0; - ctx->Viewport.Near = 0.0; - ctx->Viewport.Far = 1.0; - _math_matrix_ctr(&ctx->Viewport._WindowMap); - -#define Sz 10 -#define Tz 14 - ctx->Viewport._WindowMap.m[Sz] = 0.5F * ctx->DepthMaxF; - ctx->Viewport._WindowMap.m[Tz] = 0.5F * ctx->DepthMaxF; -#undef Sz -#undef Tz - - ctx->Viewport._WindowMap.flags = MAT_FLAG_GENERAL_SCALE|MAT_FLAG_TRANSLATION; - ctx->Viewport._WindowMap.type = MATRIX_3D_NO_ROT; - - /* Vertex arrays */ - ctx->Array.Vertex.Size = 4; - ctx->Array.Vertex.Type = GL_FLOAT; - ctx->Array.Vertex.Stride = 0; - ctx->Array.Vertex.StrideB = 0; - ctx->Array.Vertex.Ptr = NULL; - ctx->Array.Vertex.Enabled = GL_FALSE; - ctx->Array.Vertex.Flags = CA_CLIENT_DATA; - ctx->Array.Normal.Type = GL_FLOAT; - ctx->Array.Normal.Stride = 0; - ctx->Array.Normal.StrideB = 0; - ctx->Array.Normal.Ptr = NULL; - ctx->Array.Normal.Enabled = GL_FALSE; - ctx->Array.Normal.Flags = CA_CLIENT_DATA; - ctx->Array.Color.Size = 4; - ctx->Array.Color.Type = GL_FLOAT; - ctx->Array.Color.Stride = 0; - ctx->Array.Color.StrideB = 0; - ctx->Array.Color.Ptr = NULL; - ctx->Array.Color.Enabled = GL_FALSE; - ctx->Array.Color.Flags = CA_CLIENT_DATA; - ctx->Array.SecondaryColor.Size = 3; - ctx->Array.SecondaryColor.Type = GL_FLOAT; - ctx->Array.SecondaryColor.Stride = 0; - ctx->Array.SecondaryColor.StrideB = 0; - ctx->Array.SecondaryColor.Ptr = NULL; - ctx->Array.SecondaryColor.Enabled = GL_FALSE; - ctx->Array.SecondaryColor.Flags = CA_CLIENT_DATA; - ctx->Array.FogCoord.Size = 1; - ctx->Array.FogCoord.Type = GL_FLOAT; - ctx->Array.FogCoord.Stride = 0; - ctx->Array.FogCoord.StrideB = 0; - ctx->Array.FogCoord.Ptr = NULL; - ctx->Array.FogCoord.Enabled = GL_FALSE; - ctx->Array.FogCoord.Flags = CA_CLIENT_DATA; - ctx->Array.Index.Type = GL_FLOAT; - ctx->Array.Index.Stride = 0; - ctx->Array.Index.StrideB = 0; - ctx->Array.Index.Ptr = NULL; - ctx->Array.Index.Enabled = GL_FALSE; - ctx->Array.Index.Flags = CA_CLIENT_DATA; - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) { - ctx->Array.TexCoord[i].Size = 4; - ctx->Array.TexCoord[i].Type = GL_FLOAT; - ctx->Array.TexCoord[i].Stride = 0; - ctx->Array.TexCoord[i].StrideB = 0; - ctx->Array.TexCoord[i].Ptr = NULL; - ctx->Array.TexCoord[i].Enabled = GL_FALSE; - ctx->Array.TexCoord[i].Flags = CA_CLIENT_DATA; - } - ctx->Array.TexCoordInterleaveFactor = 1; - ctx->Array.EdgeFlag.Stride = 0; - ctx->Array.EdgeFlag.StrideB = 0; - ctx->Array.EdgeFlag.Ptr = NULL; - ctx->Array.EdgeFlag.Enabled = GL_FALSE; - ctx->Array.EdgeFlag.Flags = CA_CLIENT_DATA; - ctx->Array.ActiveTexture = 0; /* GL_ARB_multitexture */ - - /* Pixel transfer */ - ctx->Pack.Alignment = 4; - ctx->Pack.RowLength = 0; - ctx->Pack.ImageHeight = 0; - ctx->Pack.SkipPixels = 0; - ctx->Pack.SkipRows = 0; - ctx->Pack.SkipImages = 0; - ctx->Pack.SwapBytes = GL_FALSE; - ctx->Pack.LsbFirst = GL_FALSE; - ctx->Unpack.Alignment = 4; - ctx->Unpack.RowLength = 0; - ctx->Unpack.ImageHeight = 0; - ctx->Unpack.SkipPixels = 0; - ctx->Unpack.SkipRows = 0; - ctx->Unpack.SkipImages = 0; - ctx->Unpack.SwapBytes = GL_FALSE; - ctx->Unpack.LsbFirst = GL_FALSE; - - /* Feedback */ - ctx->Feedback.Type = GL_2D; /* TODO: verify */ - ctx->Feedback.Buffer = NULL; - ctx->Feedback.BufferSize = 0; - ctx->Feedback.Count = 0; - - /* Selection/picking */ - ctx->Select.Buffer = NULL; - ctx->Select.BufferSize = 0; - ctx->Select.BufferCount = 0; - ctx->Select.Hits = 0; - ctx->Select.NameStackDepth = 0; - - /* Renderer and client attribute stacks */ - ctx->AttribStackDepth = 0; - ctx->ClientAttribStackDepth = 0; - - /* Display list */ - ctx->CallDepth = 0; - ctx->ExecuteFlag = GL_TRUE; - ctx->CompileFlag = GL_FALSE; - ctx->CurrentListPtr = NULL; - ctx->CurrentBlock = NULL; - ctx->CurrentListNum = 0; - ctx->CurrentPos = 0; - - /* Color tables */ - _mesa_init_colortable(&ctx->ColorTable); - _mesa_init_colortable(&ctx->ProxyColorTable); - _mesa_init_colortable(&ctx->PostConvolutionColorTable); - _mesa_init_colortable(&ctx->ProxyPostConvolutionColorTable); - _mesa_init_colortable(&ctx->PostColorMatrixColorTable); - _mesa_init_colortable(&ctx->ProxyPostColorMatrixColorTable); - - /* Vertex/fragment programs */ - ctx->Program.ErrorPos = -1; - ctx->Program.ErrorString = _mesa_strdup(""); -#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program - ctx->VertexProgram.Enabled = GL_FALSE; - ctx->VertexProgram.PointSizeEnabled = GL_FALSE; - ctx->VertexProgram.TwoSideEnabled = GL_FALSE; - ctx->VertexProgram.Current = NULL; - ctx->VertexProgram.Current = (struct vertex_program *) ctx->Shared->DefaultVertexProgram; - assert(ctx->VertexProgram.Current); - ctx->VertexProgram.Current->Base.RefCount++; - for (i = 0; i < VP_NUM_PROG_REGS / 4; i++) { - ctx->VertexProgram.TrackMatrix[i] = GL_NONE; - ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV; - } -#endif -#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program - ctx->FragmentProgram.Enabled = GL_FALSE; - ctx->FragmentProgram.Current = (struct fragment_program *) ctx->Shared->DefaultFragmentProgram; - assert(ctx->FragmentProgram.Current); - ctx->FragmentProgram.Current->Base.RefCount++; -#endif - -#if FEATURE_ARB_occlusion_query - ctx->Occlusion.QueryObjects = _mesa_NewHashTable(); -#endif + /* Attribute Groups */ + _mesa_init_accum( ctx ); + _mesa_init_attrib( ctx ); + _mesa_init_buffers( ctx ); + _mesa_init_color( ctx ); + _mesa_init_colortable( ctx ); + _mesa_init_current( ctx ); + _mesa_init_depth( ctx ); + _mesa_init_debug( ctx ); + _mesa_init_display_list( ctx ); + _mesa_init_eval( ctx ); + _mesa_init_feedback( ctx ); + _mesa_init_fog( ctx ); + _mesa_init_histogram( ctx ); + _mesa_init_hint( ctx ); + _mesa_init_line( ctx ); + _mesa_init_lighting( ctx ); + _mesa_init_matrix( ctx ); + _mesa_init_pixel( ctx ); + _mesa_init_point( ctx ); + _mesa_init_polygon( ctx ); + _mesa_init_rastpos( ctx ); + _mesa_init_stencil( ctx ); + _mesa_init_transform( ctx ); + _mesa_init_varray( ctx ); + _mesa_init_viewport( ctx ); + + if (!_mesa_init_texture( ctx )) + return GL_FALSE; /* Miscellaneous */ ctx->NewState = _NEW_ALL; - ctx->RenderMode = GL_RENDER; - ctx->_ImageTransferState = 0; - - ctx->_NeedNormals = 0; - ctx->_NeedEyeCoords = 0; - ctx->_ModelViewInvScale = 1.0; - ctx->ErrorValue = (GLenum) GL_NO_ERROR; - ctx->CatchSignals = GL_TRUE; - ctx->OcclusionResult = GL_FALSE; - ctx->OcclusionResultSaved = GL_FALSE; ctx->_Facing = 0; - /* For debug/development only */ - ctx->NoRaster = _mesa_getenv("MESA_NO_RASTER") ? GL_TRUE : GL_FALSE; - ctx->FirstTimeCurrent = GL_TRUE; - - /* Dither disable */ - ctx->NoDither = _mesa_getenv("MESA_NO_DITHER") ? GL_TRUE : GL_FALSE; - if (ctx->NoDither) { - if (_mesa_getenv("MESA_DEBUG")) { - _mesa_debug(ctx, "MESA_NO_DITHER set - dithering disabled\n"); - } - ctx->Color.DitherFlag = GL_FALSE; - } -} - - - - -/** - * Allocate the proxy textures for the given context. - * \param ctx the context to allocate proxies for. - * \return GL_TRUE if success, GL_FALSE if failure. - */ -static GLboolean -alloc_proxy_textures( GLcontext *ctx ) -{ - ctx->Texture.Proxy1D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_1D); - if (!ctx->Texture.Proxy1D) - goto cleanup; - - ctx->Texture.Proxy2D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_2D); - if (!ctx->Texture.Proxy2D) - goto cleanup; - - ctx->Texture.Proxy3D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_3D); - if (!ctx->Texture.Proxy3D) - goto cleanup; - - ctx->Texture.ProxyCubeMap = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_CUBE_MAP_ARB); - if (!ctx->Texture.ProxyCubeMap) - goto cleanup; - - ctx->Texture.ProxyRect = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_RECTANGLE_NV); - if (!ctx->Texture.ProxyRect) - goto cleanup; - return GL_TRUE; - - cleanup: - if (ctx->Texture.Proxy1D) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D); - if (ctx->Texture.Proxy2D) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D); - if (ctx->Texture.Proxy3D) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D); - if (ctx->Texture.ProxyCubeMap) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap); - if (ctx->Texture.ProxyRect) - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect); - return GL_FALSE; } -static void add_debug_flags( const char *debug ) -{ -#ifdef MESA_DEBUG - if (_mesa_strstr(debug, "varray")) - MESA_VERBOSE |= VERBOSE_VARRAY; - - if (_mesa_strstr(debug, "tex")) - MESA_VERBOSE |= VERBOSE_TEXTURE; - - if (_mesa_strstr(debug, "imm")) - MESA_VERBOSE |= VERBOSE_IMMEDIATE; - - if (_mesa_strstr(debug, "pipe")) - MESA_VERBOSE |= VERBOSE_PIPELINE; - - if (_mesa_strstr(debug, "driver")) - MESA_VERBOSE |= VERBOSE_DRIVER; - - if (_mesa_strstr(debug, "state")) - MESA_VERBOSE |= VERBOSE_STATE; - - if (_mesa_strstr(debug, "api")) - MESA_VERBOSE |= VERBOSE_API; - - if (_mesa_strstr(debug, "list")) - MESA_VERBOSE |= VERBOSE_DISPLAY_LIST; - - if (_mesa_strstr(debug, "lighting")) - MESA_VERBOSE |= VERBOSE_LIGHTING; - - /* Debug flag: - */ - if (_mesa_strstr(debug, "flush")) - MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH; -#endif -} - /** - * Initialize a GLcontext struct. This includes allocating all the - * other structs and arrays which hang off of the context by pointers. + * Initialize a GLcontext struct. + * + * This includes allocating all the other structs and arrays which hang off of + * the context by pointers. + * + * \sa _mesa_create_context() for the parameter description. + * + * Performs the imports and exports callback tables initialization, and + * miscellaneous one-time initializations. If no shared context is supplied one + * is allocated, and increase its reference count. Setups the GL API dispatch + * tables. Initialize the TNL module. Sets the maximum Z buffer depth. + * Finally queries the \c MESA_DEBUG and \c MESA_VERBOSE environment variables + * for debug flags. + * * \note the direct parameter is ignored (obsolete). */ GLboolean @@ -1695,7 +1150,6 @@ _mesa_initialize_context( GLcontext *ctx, GLboolean direct ) { GLuint dispatchSize; - const char *c; ASSERT(driver_ctx); @@ -1739,50 +1193,15 @@ _mesa_initialize_context( GLcontext *ctx, ctx->Shared->RefCount++; _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - init_attrib_groups( ctx ); - - if (visual->doubleBufferMode) { - ctx->Color.DrawBuffer = GL_BACK; - ctx->Color._DrawDestMask = BACK_LEFT_BIT; - ctx->Pixel.ReadBuffer = GL_BACK; - ctx->Pixel._ReadSrcMask = BACK_LEFT_BIT; - } - else { - ctx->Color.DrawBuffer = GL_FRONT; - ctx->Color._DrawDestMask = FRONT_LEFT_BIT; - ctx->Pixel.ReadBuffer = GL_FRONT; - ctx->Pixel._ReadSrcMask = FRONT_LEFT_BIT; - } - - if (!alloc_proxy_textures(ctx)) { + if (!init_attrib_groups( ctx )) { free_shared_state(ctx, ctx->Shared); + fprintf(stderr, "%s: failed to init attrib groups\n", __FUNCTION__); return GL_FALSE; } - /* - * For XFree86/DRI: tell libGL to add these functions to the dispatcher. - * Basically, we should add all extension functions above offset 577. - * This enables older libGL libraries to work with newer drivers that - * have newer extensions. + + /* TODO: move this to somewhere program-specific. */ - /* GL_ARB_window_pos aliases with GL_MESA_window_pos */ - _glapi_add_entrypoint("glWindowPos2dARB", 513); - _glapi_add_entrypoint("glWindowPos2dvARB", 514); - _glapi_add_entrypoint("glWindowPos2fARB", 515); - _glapi_add_entrypoint("glWindowPos2fvARB", 516); - _glapi_add_entrypoint("glWindowPos2iARB", 517); - _glapi_add_entrypoint("glWindowPos2ivARB", 518); - _glapi_add_entrypoint("glWindowPos2sARB", 519); - _glapi_add_entrypoint("glWindowPos2svARB", 520); - _glapi_add_entrypoint("glWindowPos3dARB", 521); - _glapi_add_entrypoint("glWindowPos3dvARB", 522); - _glapi_add_entrypoint("glWindowPos3fARB", 523); - _glapi_add_entrypoint("glWindowPos3fvARB", 524); - _glapi_add_entrypoint("glWindowPos3iARB", 525); - _glapi_add_entrypoint("glWindowPos3ivARB", 526); - _glapi_add_entrypoint("glWindowPos3sARB", 527); - _glapi_add_entrypoint("glWindowPos3svARB", 528); - /* new extension functions */ _glapi_add_entrypoint("glAreProgramsResidentNV", 578); _glapi_add_entrypoint("glBindProgramNV", 579); _glapi_add_entrypoint("glDeleteProgramsNV", 580); @@ -1861,6 +1280,7 @@ _mesa_initialize_context( GLcontext *ctx, _glapi_add_entrypoint("glSetFenceNV", 653); /* XXX add NV_fragment_program and ARB_vertex_program functions */ + /* Find the larger of Mesa's dispatch table and libGL's dispatch table. * In practice, this'll be the same for stand-alone Mesa. But for DRI * Mesa we do this to accomodate different versions of libGL and various @@ -1878,59 +1298,34 @@ _mesa_initialize_context( GLcontext *ctx, FREE( ctx->Exec ); } _mesa_init_exec_table(ctx->Exec, dispatchSize); - _mesa_init_dlist_table(ctx->Save, dispatchSize); ctx->CurrentDispatch = ctx->Exec; +#if _HAVE_FULL_GL + _mesa_init_dlist_table(ctx->Save, dispatchSize); + ctx->ExecPrefersFloat = GL_FALSE; ctx->SavePrefersFloat = GL_FALSE; /* Neutral tnl module stuff */ - _mesa_init_exec_vtxfmt( ctx ); + _mesa_init_exec_vtxfmt( ctx ); ctx->TnlModule.Current = NULL; ctx->TnlModule.SwapCount = 0; - /* Z buffer stuff */ - if (ctx->Visual.depthBits == 0) { - /* Special case. Even if we don't have a depth buffer we need - * good values for DepthMax for Z vertex transformation purposes - * and for per-fragment fog computation. - */ - ctx->DepthMax = 1 << 16; - ctx->DepthMaxF = (GLfloat) ctx->DepthMax; - } - else if (ctx->Visual.depthBits < 32) { - ctx->DepthMax = (1 << ctx->Visual.depthBits) - 1; - ctx->DepthMaxF = (GLfloat) ctx->DepthMax; - } - else { - /* Special case since shift values greater than or equal to the - * number of bits in the left hand expression's type are undefined. - */ - ctx->DepthMax = 0xffffffff; - ctx->DepthMaxF = (GLfloat) ctx->DepthMax; - } - ctx->MRD = 1.0; /* Minimum resolvable depth value, for polygon offset */ - - c = _mesa_getenv("MESA_DEBUG"); - if (c) - add_debug_flags(c); - - c = _mesa_getenv("MESA_VERBOSE"); - if (c) - add_debug_flags(c); +#endif + fprintf(stderr, "%s: succeded\n", __FUNCTION__); return GL_TRUE; } - - /** * Allocate and initialize a GLcontext structure. - * Input: visual - a GLvisual pointer (we copy the struct contents) - * sharelist - another context to share display lists with or NULL - * driver_ctx - pointer to device driver's context state struct - * direct - obsolete, ignored - * Return: pointer to a new __GLcontextRec or NULL if error. + * + * \param visual a GLvisual pointer (we copy the struct contents) + * \param share_list another context to share display lists with or NULL + * \param driver_ctx pointer to device driver's context state struct + * \param direct obsolete, ignored + * + * \return pointer to a new __GLcontextRec or NULL if error. */ GLcontext * _mesa_create_context( const GLvisual *visual, @@ -1957,37 +1352,27 @@ _mesa_create_context( const GLvisual *visual, } } - - -/* +/** * Free the data associated with the given context. - * But don't free() the GLcontext struct itself! + * + * But doesn't free the GLcontext struct itself. + * + * \sa _mesa_initialize_context() and init_attrib_groups(). */ void _mesa_free_context_data( GLcontext *ctx ) { - struct gl_shine_tab *s, *tmps; - GLuint i; - /* if we're destroying the current context, unbind it first */ if (ctx == _mesa_get_current_context()) { _mesa_make_current(NULL, NULL); } - /* - * Free transformation matrix stacks - */ - free_matrix_stack(&ctx->ModelviewMatrixStack); - free_matrix_stack(&ctx->ProjectionMatrixStack); - free_matrix_stack(&ctx->ColorMatrixStack); - for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++) - free_matrix_stack(&ctx->TextureMatrixStack[i]); - for (i = 0; i < MAX_PROGRAM_MATRICES; i++) - free_matrix_stack(&ctx->ProgramMatrixStack[i]); - /* combined Modelview*Projection matrix */ - _math_matrix_dtr( &ctx->_ModelProjectMatrix ); - - + _mesa_free_lighting_data( ctx ); + _mesa_free_eval_data( ctx ); + _mesa_free_texture_data( ctx ); + _mesa_free_matrix_data( ctx ); + _mesa_free_viewport_data( ctx ); + _mesa_free_colortable_data( ctx ); #if FEATURE_NV_vertex_program if (ctx->VertexProgram.Current) { ctx->VertexProgram.Current->Base.RefCount--; @@ -2013,83 +1398,18 @@ _mesa_free_context_data( GLcontext *ctx ) free_shared_state( ctx, ctx->Shared ); } - /* Free lighting shininess exponentiation table */ - foreach_s( s, tmps, ctx->_ShineTabList ) { - FREE( s ); - } - FREE( ctx->_ShineTabList ); - - /* Free proxy texture objects */ - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap ); - (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect ); - - for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++) - _mesa_free_colortable_data( &ctx->Texture.Unit[i].ColorTable ); - - /* Free evaluator data */ - if (ctx->EvalMap.Map1Vertex3.Points) - FREE( ctx->EvalMap.Map1Vertex3.Points ); - if (ctx->EvalMap.Map1Vertex4.Points) - FREE( ctx->EvalMap.Map1Vertex4.Points ); - if (ctx->EvalMap.Map1Index.Points) - FREE( ctx->EvalMap.Map1Index.Points ); - if (ctx->EvalMap.Map1Color4.Points) - FREE( ctx->EvalMap.Map1Color4.Points ); - if (ctx->EvalMap.Map1Normal.Points) - FREE( ctx->EvalMap.Map1Normal.Points ); - if (ctx->EvalMap.Map1Texture1.Points) - FREE( ctx->EvalMap.Map1Texture1.Points ); - if (ctx->EvalMap.Map1Texture2.Points) - FREE( ctx->EvalMap.Map1Texture2.Points ); - if (ctx->EvalMap.Map1Texture3.Points) - FREE( ctx->EvalMap.Map1Texture3.Points ); - if (ctx->EvalMap.Map1Texture4.Points) - FREE( ctx->EvalMap.Map1Texture4.Points ); - for (i = 0; i < 16; i++) - FREE((ctx->EvalMap.Map1Attrib[i].Points)); - - if (ctx->EvalMap.Map2Vertex3.Points) - FREE( ctx->EvalMap.Map2Vertex3.Points ); - if (ctx->EvalMap.Map2Vertex4.Points) - FREE( ctx->EvalMap.Map2Vertex4.Points ); - if (ctx->EvalMap.Map2Index.Points) - FREE( ctx->EvalMap.Map2Index.Points ); - if (ctx->EvalMap.Map2Color4.Points) - FREE( ctx->EvalMap.Map2Color4.Points ); - if (ctx->EvalMap.Map2Normal.Points) - FREE( ctx->EvalMap.Map2Normal.Points ); - if (ctx->EvalMap.Map2Texture1.Points) - FREE( ctx->EvalMap.Map2Texture1.Points ); - if (ctx->EvalMap.Map2Texture2.Points) - FREE( ctx->EvalMap.Map2Texture2.Points ); - if (ctx->EvalMap.Map2Texture3.Points) - FREE( ctx->EvalMap.Map2Texture3.Points ); - if (ctx->EvalMap.Map2Texture4.Points) - FREE( ctx->EvalMap.Map2Texture4.Points ); - for (i = 0; i < 16; i++) - FREE((ctx->EvalMap.Map2Attrib[i].Points)); - - _mesa_free_colortable_data( &ctx->ColorTable ); - _mesa_free_colortable_data( &ctx->PostConvolutionColorTable ); - _mesa_free_colortable_data( &ctx->PostColorMatrixColorTable ); - _mesa_free_colortable_data( &ctx->Texture.Palette ); - - _math_matrix_dtr(&ctx->Viewport._WindowMap); - - if (ctx->Extensions.String) - FREE((void *) ctx->Extensions.String); + _mesa_extensions_dtr(ctx); FREE(ctx->Exec); FREE(ctx->Save); } - - -/* +/** * Destroy a GLcontext structure. + * + * \param ctx GL context. + * + * Calls _mesa_free_context_data() and free the structure. */ void _mesa_destroy_context( GLcontext *ctx ) @@ -2100,13 +1420,18 @@ _mesa_destroy_context( GLcontext *ctx ) } } - - -/* +#if _HAVE_FULL_GL +/** * Copy attribute groups from one context to another. - * Input: src - source context - * dst - destination context - * mask - bitwise OR of GL_*_BIT flags + * + * \param src source context + * \param dst destination context + * \param mask bitwise OR of GL_*_BIT flags + * + * According to the bits specified in \p mask, copies the corresponding + * attributes from \p src into \dst. For many of the attributes a simple \c + * memcpy is not enough due to the existence of internal pointers in their data + * structures. */ void _mesa_copy_context( const GLcontext *src, GLcontext *dst, GLuint mask ) @@ -2214,35 +1539,7 @@ _mesa_copy_context( const GLcontext *src, GLcontext *dst, GLuint mask ) */ dst->NewState = _NEW_ALL; } - - - -static void print_info( void ) -{ - _mesa_debug(NULL, "Mesa GL_VERSION = %s\n", - (char *) _mesa_GetString(GL_VERSION)); - _mesa_debug(NULL, "Mesa GL_RENDERER = %s\n", - (char *) _mesa_GetString(GL_RENDERER)); - _mesa_debug(NULL, "Mesa GL_VENDOR = %s\n", - (char *) _mesa_GetString(GL_VENDOR)); - _mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n", - (char *) _mesa_GetString(GL_EXTENSIONS)); -#if defined(THREADS) - _mesa_debug(NULL, "Mesa thread-safe: YES\n"); -#else - _mesa_debug(NULL, "Mesa thread-safe: NO\n"); -#endif -#if defined(USE_X86_ASM) - _mesa_debug(NULL, "Mesa x86-optimized: YES\n"); -#else - _mesa_debug(NULL, "Mesa x86-optimized: NO\n"); #endif -#if defined(USE_SPARC_ASM) - _mesa_debug(NULL, "Mesa sparc-optimized: YES\n"); -#else - _mesa_debug(NULL, "Mesa sparc-optimized: NO\n"); -#endif -} /** @@ -2286,8 +1583,13 @@ check_compatible(const GLcontext *ctx, const GLframebuffer *buffer) } -/* +/** * Set the current context, binding the given frame buffer to the context. + * + * \param newCtx new GL context. + * \param buffer framebuffer. + * + * Calls _mesa_make_current2() with \p buffer as read and write framebuffer. */ void _mesa_make_current( GLcontext *newCtx, GLframebuffer *buffer ) @@ -2295,10 +1597,24 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *buffer ) _mesa_make_current2( newCtx, buffer, buffer ); } - -/* - * Bind the given context to the given draw-buffer and read-buffer - * and make it the current context for this thread. +/** + * Bind the given context to the given draw-buffer and read-buffer and + * make it the current context for this thread. + * + * \param newCtx new GL context. If NULL then there will be no current GL + * context. + * \param drawBuffer draw framebuffer. + * \param readBuffer read framebuffer. + * + * Check that the context's and framebuffer's visuals are compatible, returning + * immediately otherwise. Sets the glapi current context via + * _glapi_set_context(). If \p newCtx is not NULL, associates \p drawBuffer and + * \p readBuffer with it and calls dd_function_table::ResizeBuffers if the buffers size has changed. + * Calls dd_function_table::MakeCurrent callback if defined. + * + * When a context is bound by the first time and the \c MESA_INFO environment + * variable is set it calls print_info() as an aid for remote user + * troubleshooting. */ void _mesa_make_current2( GLcontext *newCtx, GLframebuffer *drawBuffer, @@ -2339,6 +1655,7 @@ _mesa_make_current2( GLcontext *newCtx, GLframebuffer *drawBuffer, newCtx->ReadBuffer = readBuffer; newCtx->NewState |= _NEW_BUFFERS; +#if _HAVE_FULL_GL if (drawBuffer->Width == 0 && drawBuffer->Height == 0) { /* get initial window size */ GLuint bufWidth, bufHeight; @@ -2346,13 +1663,14 @@ _mesa_make_current2( GLcontext *newCtx, GLframebuffer *drawBuffer, /* ask device driver for size of output buffer */ (*newCtx->Driver.GetBufferSize)( drawBuffer, &bufWidth, &bufHeight ); - if (drawBuffer->Width == bufWidth && drawBuffer->Height == bufHeight) - return; /* size is as expected */ + if (drawBuffer->Width != bufWidth || + drawBuffer->Height != bufHeight) { - drawBuffer->Width = bufWidth; - drawBuffer->Height = bufHeight; + drawBuffer->Width = bufWidth; + drawBuffer->Height = bufHeight; - newCtx->Driver.ResizeBuffers( drawBuffer ); + newCtx->Driver.ResizeBuffers( drawBuffer ); + } } if (readBuffer != drawBuffer && @@ -2363,17 +1681,22 @@ _mesa_make_current2( GLcontext *newCtx, GLframebuffer *drawBuffer, /* ask device driver for size of output buffer */ (*newCtx->Driver.GetBufferSize)( readBuffer, &bufWidth, &bufHeight ); - if (readBuffer->Width == bufWidth && readBuffer->Height == bufHeight) - return; /* size is as expected */ + if (readBuffer->Width != bufWidth || + readBuffer->Height != bufHeight) { - readBuffer->Width = bufWidth; - readBuffer->Height = bufHeight; + readBuffer->Width = bufWidth; + readBuffer->Height = bufHeight; - newCtx->Driver.ResizeBuffers( readBuffer ); + newCtx->Driver.ResizeBuffers( readBuffer ); + } } +#endif } - /* This is only for T&L - a bit out of place, or misnamed (BP) */ + /* Alert the driver - usually passed on to the sw t&l module, + * but also used to detect threaded cases in the radeon codegen + * hw t&l module. + */ if (newCtx->Driver.MakeCurrent) newCtx->Driver.MakeCurrent( newCtx, drawBuffer, readBuffer ); @@ -2384,19 +1707,20 @@ _mesa_make_current2( GLcontext *newCtx, GLframebuffer *drawBuffer, */ if (newCtx->FirstTimeCurrent) { if (_mesa_getenv("MESA_INFO")) { - print_info(); + _mesa_print_info(); } newCtx->FirstTimeCurrent = GL_FALSE; } } } - - -/* - * Return current context handle for the calling thread. - * This isn't the fastest way to get the current context. - * If you need speed, see the GET_CURRENT_CONTEXT() macro in context.h +/** + * Get current context for the calling thread. + * + * \return pointer to the current GL context. + * + * Calls _glapi_get_context(). This isn't the fastest way to get the current + * context. If you need speed, see the #GET_CURRENT_CONTEXT macro in context.h. */ GLcontext * _mesa_get_current_context( void ) @@ -2404,11 +1728,17 @@ _mesa_get_current_context( void ) return (GLcontext *) _glapi_get_context(); } - -/* - * Return pointer to this context's current API dispatch table. - * It'll either be the immediate-mode execute dispatcher or the - * display list compile dispatcher. +/** + * Get context's current API dispatch table. + * + * It'll either be the immediate-mode execute dispatcher or the display list + * compile dispatcher. + * + * \param ctx GL context. + * + * \return pointer to dispatch_table. + * + * Simply returns __GLcontextRec::CurrentDispatch. */ struct _glapi_table * _mesa_get_dispatch(GLcontext *ctx) @@ -2416,15 +1746,24 @@ _mesa_get_dispatch(GLcontext *ctx) return ctx->CurrentDispatch; } +/*@}*/ /**********************************************************************/ -/***** Miscellaneous functions *****/ +/** \name Miscellaneous functions */ /**********************************************************************/ +/*@{*/ - -/* - * Record the given error code and call the driver's Error function if defined. +/** + * Record an error. + * + * \param ctx GL context. + * \param error error code. + * + * Records the given error code and call the driver's dd_function_table::Error + * function if defined. + * + * \sa * This is called via _mesa_error(). */ void @@ -2443,7 +1782,12 @@ _mesa_record_error( GLcontext *ctx, GLenum error ) } } - +/** + * Execute glFinish(). + * + * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the + * dd_function_table::Finish driver callback, if not NULL. + */ void _mesa_Finish( void ) { @@ -2454,8 +1798,12 @@ _mesa_Finish( void ) } } - - +/** + * Execute glFlush(). + * + * Calls the #ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH macro and the + * dd_function_table::Flush driver callback, if not NULL. + */ void _mesa_Flush( void ) { @@ -2467,19 +1815,4 @@ _mesa_Flush( void ) } - -const char *_mesa_prim_name[GL_POLYGON+4] = { - "GL_POINTS", - "GL_LINES", - "GL_LINE_LOOP", - "GL_LINE_STRIP", - "GL_TRIANGLES", - "GL_TRIANGLE_STRIP", - "GL_TRIANGLE_FAN", - "GL_QUADS", - "GL_QUAD_STRIP", - "GL_POLYGON", - "outside begin/end", - "inside unkown primitive", - "unknown state" -}; +/*@}*/ diff --git a/src/mesa/main/context.h b/src/mesa/main/context.h index a123b317bc1..edd78e302d8 100644 --- a/src/mesa/main/context.h +++ b/src/mesa/main/context.h @@ -1,3 +1,23 @@ +/** + * \file context.h + * Mesa context/visual/framebuffer management functions. + * + * There are three Mesa data types which are meant to be used by device + * drivers: + * - GLcontext: this contains the Mesa rendering state + * - GLvisual: this describes the color buffer (RGB vs. ci), whether or not + * there's a depth buffer, stencil buffer, etc. + * - GLframebuffer: contains pointers to the depth buffer, stencil buffer, + * accum buffer and alpha buffers. + * + * These types should be encapsulated by corresponding device driver + * data types. See xmesa.h and xmesaP.h for an example. + * + * In OOP terms, GLcontext, GLvisual, and GLframebuffer are base classes + * which the device driver must derive from. + * + * The following functions create and destroy these data types. + */ /* * Mesa 3-D graphics library @@ -32,28 +52,10 @@ #include "mtypes.h" -/* - * There are three Mesa datatypes which are meant to be used by device - * drivers: - * GLcontext: this contains the Mesa rendering state - * GLvisual: this describes the color buffer (rgb vs. ci), whether - * or not there's a depth buffer, stencil buffer, etc. - * GLframebuffer: contains pointers to the depth buffer, stencil - * buffer, accum buffer and alpha buffers. - * - * These types should be encapsulated by corresponding device driver - * datatypes. See xmesa.h and xmesaP.h for an example. - * - * In OOP terms, GLcontext, GLvisual, and GLframebuffer are base classes - * which the device driver must derive from. - * - * The following functions create and destroy these datatypes. - */ - - -/* - * Create/destroy a GLvisual. - */ +/**********************************************************************/ +/** \name Create/destroy a GLvisual. */ +/*@{*/ + extern GLvisual * _mesa_create_visual( GLboolean rgbFlag, GLboolean dbFlag, @@ -92,11 +94,13 @@ _mesa_initialize_visual( GLvisual *v, extern void _mesa_destroy_visual( GLvisual *vis ); +/*@}*/ -/* - * Create/destroy a GLframebuffer. - */ +/**********************************************************************/ +/** \name Create/destroy a GLframebuffer. */ +/*@{*/ + extern GLframebuffer * _mesa_create_framebuffer( const GLvisual *visual, GLboolean softwareDepth, @@ -118,11 +122,13 @@ _mesa_free_framebuffer_data( GLframebuffer *buffer ); extern void _mesa_destroy_framebuffer( GLframebuffer *buffer ); +/*@}*/ -/* - * Create/destroy a GLcontext. - */ +/**********************************************************************/ +/** \name Create/destroy a GLcontext. */ +/*@{*/ + extern GLcontext * _mesa_create_context( const GLvisual *visual, GLcontext *share_list, @@ -159,10 +165,21 @@ _mesa_make_current2( GLcontext *ctx, GLframebuffer *drawBuffer, extern GLcontext * _mesa_get_current_context(void); +/*@}*/ -/* - * Macros for fetching current context. +/** + * Macro for declaration and fetching the current context. + * + * \param C local variable which will hold the current context. + * + * It should be used in the variable declaration area of a function: + * \code + * ... + * { + * GET_CURRENT_CONTEXT(ctx); + * ... + * \endcode */ #ifdef THREADS @@ -176,7 +193,9 @@ _mesa_get_current_context(void); -/* OpenGL SI-style export functions. */ +/**********************************************************************/ +/** \name OpenGL SI-style export functions. */ +/*@{*/ extern GLboolean _mesa_destroyContext(__GLcontext *gc); @@ -214,6 +233,7 @@ _mesa_beginDispatchOverride(__GLcontext *gc); extern void _mesa_endDispatchOverride(__GLcontext *gc); +/*@}*/ extern struct _glapi_table * @@ -221,9 +241,9 @@ _mesa_get_dispatch(GLcontext *ctx); -/* - * Miscellaneous - */ +/**********************************************************************/ +/** \name Miscellaneous */ +/*@{*/ extern void _mesa_record_error( GLcontext *ctx, GLenum error ); @@ -235,5 +255,6 @@ _mesa_Finish( void ); extern void _mesa_Flush( void ); +/*@}*/ #endif diff --git a/src/mesa/main/convolve.h b/src/mesa/main/convolve.h index f97c9f35bdf..deac1e2c0b3 100644 --- a/src/mesa/main/convolve.h +++ b/src/mesa/main/convolve.h @@ -31,6 +31,7 @@ #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_ConvolutionFilter1D(GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const GLvoid *image); @@ -103,5 +104,11 @@ extern void _mesa_adjust_image_for_convolution(const GLcontext *ctx, GLuint dimensions, GLsizei *width, GLsizei *height); +#else +#define _mesa_adjust_image_for_convolution(c, d, w, h) ((void)0) +#define _mesa_convolve_1d_image(c,w,s,d) ((void)0) +#define _mesa_convolve_2d_image(c,w,h,s,d) ((void)0) +#define _mesa_convolve_sep_image(c,w,h,s,d) ((void)0) +#endif #endif diff --git a/src/mesa/main/dd.h b/src/mesa/main/dd.h index 88ffb8fb473..1829bbc6524 100644 --- a/src/mesa/main/dd.h +++ b/src/mesa/main/dd.h @@ -1,3 +1,7 @@ +/** + * \file dd.h + * Device driver interfaces. + */ /* * Mesa 3-D graphics library @@ -24,7 +28,6 @@ */ - #ifndef DD_INCLUDED #define DD_INCLUDED @@ -46,135 +49,183 @@ struct gl_pixelstore_attrib; #define DD_STENCIL_BIT GL_STENCIL_BUFFER_BIT /* 0x00000400 */ -/* - * Device Driver function table. +/** + * Device driver function table. */ struct dd_function_table { - const GLubyte * (*GetString)( GLcontext *ctx, GLenum name ); - /* Return a string as needed by glGetString(). - * Only the GL_RENDERER token must be implemented. Otherwise, - * NULL can be returned. + /** + * Return a string as needed by glGetString(). + * + * Only the GL_RENDERER token must be implemented. Otherwise, NULL can be + * returned. */ + const GLubyte * (*GetString)( GLcontext *ctx, GLenum name ); - void (*UpdateState)( GLcontext *ctx, GLuint new_state ); - /* - * UpdateState() is called to notify the driver after Mesa has made - * some internal state changes. This is in addition to any - * statechange callbacks Mesa may already have made. + /** + * Notify the driver after Mesa has made some internal state changes. + * + * This is in addition to any state change callbacks Mesa may already have + * made. */ + void (*UpdateState)( GLcontext *ctx, GLuint new_state ); - void (*Clear)( GLcontext *ctx, GLbitfield mask, GLboolean all, - GLint x, GLint y, GLint width, GLint height ); - /* Clear the color/depth/stencil/accum buffer(s). - * 'mask' is a bitmask of the DD_*_BIT values defined above that indicates + /** + * Clear the color/depth/stencil/accum buffer(s). + * + * \param mask a bitmask of the DD_*_BIT values defined above that indicates * which buffers need to be cleared. - * If 'all' is true then the clear the whole buffer, else clear only the - * region defined by (x,y,width,height). - * This function must obey the glColorMask, glIndexMask and glStencilMask + * \param all if true then clear the whole buffer, else clear only the + * region defined by <tt>(x, y, width, height)</tt>. + * + * This function must obey the glColorMask(), glIndexMask() and glStencilMask() * settings! * Software Mesa can do masked clears if the device driver can't. */ + void (*Clear)( GLcontext *ctx, GLbitfield mask, GLboolean all, + GLint x, GLint y, GLint width, GLint height ); - void (*DrawBuffer)( GLcontext *ctx, GLenum buffer ); - /* - * Specifies the current buffer for writing. Called via glDrawBuffer(). - * Note the driver must organize fallbacks (eg with swrast) if it - * cannot implement the requested mode. + /** + * Specify the current buffer for writing. + * + * Called via glDrawBuffer(). Note the driver must organize fallbacks (e.g. + * with swrast) if it cannot implement the requested mode. */ + void (*DrawBuffer)( GLcontext *ctx, GLenum buffer ); - - void (*ReadBuffer)( GLcontext *ctx, GLenum buffer ); - /* - * Specifies the current buffer for reading. Called via glReadBuffer(). + /** + * Specifies the current buffer for reading. + * + * Called via glReadBuffer(). */ + void (*ReadBuffer)( GLcontext *ctx, GLenum buffer ); - void (*GetBufferSize)( GLframebuffer *buffer, - GLuint *width, GLuint *height ); - /* - * Returns the width and height of the named buffer/window. + /** + * Get the width and height of the named buffer/window. + * * Mesa uses this to determine when the driver's window size has changed. */ + void (*GetBufferSize)( GLframebuffer *buffer, + GLuint *width, GLuint *height ); - void (*ResizeBuffers)( GLframebuffer *buffer ); - /* + /** * Resize the driver's depth/stencil/accum/back buffers to match the - * size given in the GLframebuffer struct. This is typically called - * when Mesa detects that a window size has changed. + * size given in the GLframebuffer struct. + * + * This is typically called when Mesa detects that a window size has changed. */ + void (*ResizeBuffers)( GLframebuffer *buffer ); - void (*Finish)( GLcontext *ctx ); - /* + /** * This is called whenever glFinish() is called. */ + void (*Finish)( GLcontext *ctx ); - void (*Flush)( GLcontext *ctx ); - /* + /** * This is called whenever glFlush() is called. */ + void (*Flush)( GLcontext *ctx ); - void (*Error)( GLcontext *ctx ); - /* - * Called whenever an error is generated. ctx->ErrorValue contains - * the error value. + /** + * Called whenever an error is generated. + * + * __GLcontextRec::ErrorValue contains the error value. */ + void (*Error)( GLcontext *ctx ); - /*** - *** For hardware accumulation buffer: - ***/ + /** + * \name For hardware accumulation buffer + */ + /*@{*/ + /** + * Execute glAccum command within the given scissor region. + */ void (*Accum)( GLcontext *ctx, GLenum op, GLfloat value, GLint xpos, GLint ypos, GLint width, GLint height ); - /* Execute glAccum command within the given scissor region. - */ + /*@}*/ - /*** - *** glDraw/Read/CopyPixels and glBitmap functions: - ***/ + /** + * \name glDraw(), glRead(), glCopyPixels() and glBitmap() functions + */ + /*@{*/ + /** + * This is called by glDrawPixels(). + * + * \p unpack describes how to unpack the source image data. + */ void (*DrawPixels)( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels ); - /* This is called by glDrawPixels. - * 'unpack' describes how to unpack the source image data. - */ + /** + * Called by glReadPixels(). + */ void (*ReadPixels)( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, const struct gl_pixelstore_attrib *unpack, GLvoid *dest ); - /* Called by glReadPixels. - */ + /** + * Do a glCopyPixels(). + * + * This function must respect all rasterization state, glPixelTransfer(), + * glPixelZoom(), etc. + */ void (*CopyPixels)( GLcontext *ctx, GLint srcx, GLint srcy, GLsizei width, GLsizei height, GLint dstx, GLint dsty, GLenum type ); - /* Do a glCopyPixels. This function must respect all rasterization - * state, glPixelTransfer, glPixelZoom, etc. - */ + /** + * This is called by glBitmap(). + * + * Works the same as dd_function_table::DrawPixels, above. + */ void (*Bitmap)( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, const struct gl_pixelstore_attrib *unpack, const GLubyte *bitmap ); - /* This is called by glBitmap. Works the same as DrawPixels, above. + /*@}*/ + + + /** + * \name Texture image functions */ + /*@{*/ - /*** - *** Texture image functions: - ***/ + /** + * Choose texture format. + * + * This is called by the \c _mesa_store_tex[sub]image[123]d() fallback + * functions. The driver should examine \p internalFormat and return a + * pointer to an appropriate gl_texture_format. + */ const struct gl_texture_format * (*ChooseTextureFormat)( GLcontext *ctx, GLint internalFormat, GLenum srcFormat, GLenum srcType ); - /* This is called by the _mesa_store_tex[sub]image[123]d() fallback - * functions. The driver should examine <internalFormat> and return a - * pointer to an appropriate gl_texture_format. - */ + /** + * Called by glTexImage1D(). + * + * \param target user specified. + * \param format user specified. + * \param type user specified. + * \param pixels user specified. + * \param packing indicates the image packing of pixels. + * \param texObj is the target texture object. + * \param texImage is the target texture image. It will have the texture \p + * width, \p height, \p depth, \p border and \p internalFormat information. + * + * \p retainInternalCopy is returned by this function and indicates whether + * core Mesa should keep an internal copy of the texture image. + * + * Drivers should call a fallback routine from texstore.c if needed. + */ void (*TexImage1D)( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLint width, GLint border, @@ -182,6 +233,12 @@ struct dd_function_table { const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); + + /** + * Called by glTexImage2D(). + * + * \sa dd_function_table::TexImage1D. + */ void (*TexImage2D)( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLint width, GLint height, GLint border, @@ -189,6 +246,12 @@ struct dd_function_table { const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); + + /** + * Called by glTexImage3D(). + * + * \sa dd_function_table::TexImage1D. + */ void (*TexImage3D)( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLint width, GLint height, GLint depth, GLint border, @@ -196,18 +259,28 @@ struct dd_function_table { const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); - /* Called by glTexImage1/2/3D. - * Arguments: - * <target>, <level>, <format>, <type> and <pixels> are user specified. - * <packing> indicates the image packing of pixels. - * <texObj> is the target texture object. - * <texImage> is the target texture image. It will have the texture - * width, height, depth, border and internalFormat information. - * <retainInternalCopy> is returned by this function and indicates whether - * core Mesa should keep an internal copy of the texture image. - * Drivers should call a fallback routine from texstore.c if needed. - */ + /** + * Called by glTexSubImage1D(). + * + * \param target user specified. + * \param level user specified. + * \param xoffset user specified. + * \param yoffset user specified. + * \param zoffset user specified. + * \param width user specified. + * \param height user specified. + * \param depth user specified. + * \param format user specified. + * \param type user specified. + * \param pixels user specified. + * \param packing indicates the image packing of pixels. + * \param texObj is the target texture object. + * \param texImage is the target texture image. It will have the texture \p + * width, \p height, \p border and \p internalFormat information. + * + * The driver should use a fallback routine from texstore.c if needed. + */ void (*TexSubImage1D)( GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, @@ -215,6 +288,12 @@ struct dd_function_table { const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); + + /** + * Called by glTexSubImage2D(). + * + * \sa dd_function_table::TexSubImage1D. + */ void (*TexSubImage2D)( GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, @@ -223,6 +302,12 @@ struct dd_function_table { const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); + + /** + * Called by glTexSubImage3D(). + * + * \sa dd_function_table::TexSubImage1D. + */ void (*TexSubImage3D)( GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLint depth, @@ -231,68 +316,108 @@ struct dd_function_table { const struct gl_pixelstore_attrib *packing, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); - /* Called by glTexSubImage1/2/3D. - * Arguments: - * <target>, <level>, <xoffset>, <yoffset>, <zoffset>, <width>, <height>, - * <depth>, <format>, <type> and <pixels> are user specified. - * <packing> indicates the image packing of pixels. - * <texObj> is the target texture object. - * <texImage> is the target texture image. It will have the texture - * width, height, border and internalFormat information. - * The driver should use a fallback routine from texstore.c if needed. - */ + /** + * Called by glCopyTexImage1D(). + * + * Drivers should use a fallback routine from texstore.c if needed. + */ void (*CopyTexImage1D)( GLcontext *ctx, GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLint border ); + + /** + * Called by glCopyTexImage2D(). + * + * Drivers should use a fallback routine from texstore.c if needed. + */ void (*CopyTexImage2D)( GLcontext *ctx, GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border ); - /* Called by glCopyTexImage1D and glCopyTexImage2D. + + /** + * Called by glCopyTexSubImage1D(). + * * Drivers should use a fallback routine from texstore.c if needed. */ - void (*CopyTexSubImage1D)( GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width ); + /** + * Called by glCopyTexSubImage2D(). + * + * Drivers should use a fallback routine from texstore.c if needed. + */ void (*CopyTexSubImage2D)( GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height ); + /** + * Called by glCopyTexSubImage3D(). + * + * Drivers should use a fallback routine from texstore.c if needed. + */ void (*CopyTexSubImage3D)( GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height ); - /* Called by glCopyTexSubImage1/2/3D. - * Drivers should use a fallback routine from texstore.c if needed. - */ + /** + * Called by glTexImage[123]D when user specifies a proxy texture + * target. + * + * \return GL_TRUE if the proxy test passes, or GL_FALSE if the test fails. + */ GLboolean (*TestProxyTexImage)(GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLenum format, GLenum type, GLint width, GLint height, GLint depth, GLint border); - /* Called by glTexImage[123]D when user specifies a proxy texture - * target. Return GL_TRUE if the proxy test passes, return GL_FALSE - * if the test fails. - */ + /*@}*/ - /*** - *** Compressed texture functions: - ***/ + + /** + * \name Compressed texture functions + */ + /*@{*/ + /** + * Called by glCompressedTexImage1D(). + * + * \param target user specified. + * \param format user specified. + * \param type user specified. + * \param pixels user specified. + * \param packing indicates the image packing of pixels. + * \param texObj is the target texture object. + * \param texImage is the target texture image. It will have the texture \p + * width, \p height, \p depth, \p border and \p internalFormat information. + * + * \a retainInternalCopy is returned by this function and indicates whether + * core Mesa should keep an internal copy of the texture image. + */ void (*CompressedTexImage1D)( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLsizei imageSize, const GLvoid *data, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); + /** + * Called by glCompressedTexImage2D(). + * + * \sa dd_function_table::CompressedTexImage1D. + */ void (*CompressedTexImage2D)( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); + /** + * Called by glCompressedTexImage3D(). + * + * \sa dd_function_table::CompressedTexImage3D. + */ void (*CompressedTexImage3D)( GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLsizei depth, @@ -300,24 +425,35 @@ struct dd_function_table { GLsizei imageSize, const GLvoid *data, struct gl_texture_object *texObj, struct gl_texture_image *texImage ); - /* Called by glCompressedTexImage1/2/3D. - * Arguments: - * <target>, <level>, <internalFormat>, <data> are user specified. - * <texObj> is the target texture object. - * <texImage> is the target texture image. It will have the texture - * width, height, depth, border and internalFormat information. - * <retainInternalCopy> is returned by this function and indicates whether - * core Mesa should keep an internal copy of the texture image. - * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa - * should do the job. - */ + /** + * Called by glCompressedTexSubImage1D(). + * + * \param target user specified. + * \param level user specified. + * \param xoffset user specified. + * \param yoffset user specified. + * \param zoffset user specified. + * \param width user specified. + * \param height user specified. + * \param depth user specified. + * \param imageSize user specified. + * \param data user specified. + * \param texObj is the target texture object. + * \param texImage is the target texture image. It will have the texture \p + * width, \p height, \p depth, \p border and \p internalFormat information. + */ void (*CompressedTexSubImage1D)(GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const GLvoid *data, struct gl_texture_object *texObj, struct gl_texture_image *texImage); + /** + * Called by glCompressedTexSubImage2D(). + * + * \sa dd_function_table::CompressedTexImage3D. + */ void (*CompressedTexSubImage2D)(GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLint height, @@ -325,6 +461,11 @@ struct dd_function_table { GLsizei imageSize, const GLvoid *data, struct gl_texture_object *texObj, struct gl_texture_image *texImage); + /** + * Called by glCompressedTexSubImage3D(). + * + * \sa dd_function_table::CompressedTexImage3D. + */ void (*CompressedTexSubImage3D)(GLcontext *ctx, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLint height, GLint depth, @@ -332,67 +473,77 @@ struct dd_function_table { GLsizei imageSize, const GLvoid *data, struct gl_texture_object *texObj, struct gl_texture_image *texImage); - /* Called by glCompressedTexSubImage1/2/3D. - * Arguments: - * <target>, <level>, <x/z/zoffset>, <width>, <height>, <depth>, - * <imageSize>, and <data> are user specified. - * <texObj> is the target texture object. - * <texImage> is the target texture image. It will have the texture - * width, height, depth, border and internalFormat information. - * Return GL_TRUE if operation completed, return GL_FALSE if core Mesa - * should do the job. - */ + /*@}*/ - /*** - *** Texture object functions: - ***/ + /** + * \name Texture object functions + */ + /*@{*/ + /** + * Called by glBindTexture(). + */ void (*BindTexture)( GLcontext *ctx, GLenum target, struct gl_texture_object *tObj ); - /* Called by glBindTexture(). + + /** + * Called when a texture object is created. */ + void (*CreateTexture)( GLcontext *ctx, struct gl_texture_object *tObj ); - struct gl_texture_object * (*NewTextureObject)( GLcontext *ctx, GLuint name, - GLenum target ); - /* Called to allocate a new texture object. - * NOTE: this function pointer should be initialized by drivers _BEFORE_ + /** + * Called to allocate a new texture object. + * + * \note This function pointer should be initialized by drivers \e before * calling _mesa_initialize_context() since context initialization involves * allocating some texture objects! */ - - void (*DeleteTexture)( GLcontext *ctx, struct gl_texture_object *tObj ); - /* Called when a texture object is about to be deallocated. Driver - * should free anything attached to the DriverData pointers. + struct gl_texture_object * (*NewTextureObject)( GLcontext *ctx, GLuint name, + GLenum target ); + /** + * Called when a texture object is about to be deallocated. + * + * Driver should free anything attached to the DriverData pointers. */ + void (*DeleteTexture)( GLcontext *ctx, struct gl_texture_object *tObj ); - struct gl_texture_image * (*NewTextureImage)( GLcontext *ctx ); - /* Called to allocate a new texture image object. + /** + * Called to allocate a new texture image object. */ + struct gl_texture_image * (*NewTextureImage)( GLcontext *ctx ); + /** + * Called by glAreTextureResident(). + */ GLboolean (*IsTextureResident)( GLcontext *ctx, struct gl_texture_object *t ); - /* Called by glAreTextureResident(). - */ + /** + * Called by glPrioritizeTextures(). + */ void (*PrioritizeTexture)( GLcontext *ctx, struct gl_texture_object *t, GLclampf priority ); - /* Called by glPrioritizeTextures(). - */ - void (*ActiveTexture)( GLcontext *ctx, GLuint texUnitNumber ); - /* Called by glActiveTextureARB to set current texture unit. + /** + * Called by glActiveTextureARB() to set current texture unit. */ + void (*ActiveTexture)( GLcontext *ctx, GLuint texUnitNumber ); + /** + * Called when the texture's color lookup table is changed. + * + * If \p tObj is NULL then the shared texture palette + * gl_texture_object::Palette is to be updated. + */ void (*UpdateTexturePalette)( GLcontext *ctx, struct gl_texture_object *tObj ); - /* Called when the texture's color lookup table is changed. - * If tObj is NULL then the shared texture palette ctx->Texture.Palette - * is to be updated. - */ + /*@}*/ - /*** - *** Imaging functionality: - ***/ + + /** + * \name Imaging functionality + */ + /*@{*/ void (*CopyColorTable)( GLcontext *ctx, GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width ); @@ -409,74 +560,119 @@ struct dd_function_table { GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height ); + /*@}*/ - - /*** - *** State-changing functions (drawing functions are above) - *** - *** These functions are called by their corresponding OpenGL API functions. - *** They're ALSO called by the gl_PopAttrib() function!!! - *** May add more functions like these to the device driver in the future. - ***/ + /** + * \name State-changing functions. + * + * \note drawing functions are above. + * + * These functions are called by their corresponding OpenGL API functions. + * They are \e also called by the gl_PopAttrib() function!!! + * May add more functions like these to the device driver in the future. + */ + /*@{*/ + /** Specify the alpha test function */ void (*AlphaFunc)(GLcontext *ctx, GLenum func, GLfloat ref); + /** Set the blend color */ void (*BlendColor)(GLcontext *ctx, const GLfloat color[4]); + /** Set the blend equation */ void (*BlendEquation)(GLcontext *ctx, GLenum mode); + /** Specify pixel arithmetic */ void (*BlendFunc)(GLcontext *ctx, GLenum sfactor, GLenum dfactor); void (*BlendFuncSeparate)(GLcontext *ctx, GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorA, GLenum dfactorA); + /** Specify clear values for the color buffers */ void (*ClearColor)(GLcontext *ctx, const GLfloat color[4]); + /** Specify the clear value for the depth buffer */ void (*ClearDepth)(GLcontext *ctx, GLclampd d); + /** Specify the clear value for the color index buffers */ void (*ClearIndex)(GLcontext *ctx, GLuint index); + /** Specify the clear value for the stencil buffer */ void (*ClearStencil)(GLcontext *ctx, GLint s); + /** Specify a plane against which all geometry is clipped */ void (*ClipPlane)(GLcontext *ctx, GLenum plane, const GLfloat *equation ); + /** Enable and disable writing of frame buffer color components */ void (*ColorMask)(GLcontext *ctx, GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask ); + /** Cause a material color to track the current color */ void (*ColorMaterial)(GLcontext *ctx, GLenum face, GLenum mode); + /** Specify whether front- or back-facing facets can be culled */ void (*CullFace)(GLcontext *ctx, GLenum mode); + /** Define front- and back-facing polygons */ void (*FrontFace)(GLcontext *ctx, GLenum mode); + /** Specify the value used for depth buffer comparisons */ void (*DepthFunc)(GLcontext *ctx, GLenum func); + /** Enable or disable writing into the depth buffer */ void (*DepthMask)(GLcontext *ctx, GLboolean flag); + /** Specify mapping of depth values from normalized device coordinates to window coordinates */ void (*DepthRange)(GLcontext *ctx, GLclampd nearval, GLclampd farval); - void (*Enable)(GLcontext* ctx, GLenum cap, GLboolean state); + /** Enable or disable server-side gl capabilities */ + void (*Enable)(GLcontext *ctx, GLenum cap, GLboolean state); + /** Specify fog parameters */ void (*Fogfv)(GLcontext *ctx, GLenum pname, const GLfloat *params); + /** Specify implementation-specific hints */ void (*Hint)(GLcontext *ctx, GLenum target, GLenum mode); + /** Control the writing of individual bits in the color index buffers */ void (*IndexMask)(GLcontext *ctx, GLuint mask); + /** Set light source parameters */ void (*Lightfv)(GLcontext *ctx, GLenum light, GLenum pname, const GLfloat *params ); + /** Set the lighting model parameters */ void (*LightModelfv)(GLcontext *ctx, GLenum pname, const GLfloat *params); + /** Specify the line stipple pattern */ void (*LineStipple)(GLcontext *ctx, GLint factor, GLushort pattern ); + /** Specify the width of rasterized lines */ void (*LineWidth)(GLcontext *ctx, GLfloat width); + /** Specify a logical pixel operation for color index rendering */ void (*LogicOpcode)(GLcontext *ctx, GLenum opcode); void (*PointParameterfv)(GLcontext *ctx, GLenum pname, const GLfloat *params); + /** Specify the diameter of rasterized points */ void (*PointSize)(GLcontext *ctx, GLfloat size); + /** Select a polygon rasterization mode */ void (*PolygonMode)(GLcontext *ctx, GLenum face, GLenum mode); + /** Set the scale and units used to calculate depth values */ void (*PolygonOffset)(GLcontext *ctx, GLfloat factor, GLfloat units); + /** Set the polygon stippling pattern */ void (*PolygonStipple)(GLcontext *ctx, const GLubyte *mask ); + /** Set rasterization mode */ void (*RenderMode)(GLcontext *ctx, GLenum mode ); + /** Define the scissor box */ void (*Scissor)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h); + /** Select flat or smooth shading */ void (*ShadeModel)(GLcontext *ctx, GLenum mode); + /** Set function and reference value for stencil testing */ void (*StencilFunc)(GLcontext *ctx, GLenum func, GLint ref, GLuint mask); + /** Control the writing of individual bits in the stencil planes */ void (*StencilMask)(GLcontext *ctx, GLuint mask); + /** Set stencil test actions */ void (*StencilOp)(GLcontext *ctx, GLenum fail, GLenum zfail, GLenum zpass); void (*ActiveStencilFace)(GLcontext *ctx, GLuint face); + /** Control the generation of texture coordinates */ void (*TexGen)(GLcontext *ctx, GLenum coord, GLenum pname, const GLfloat *params); + /** Set texture environment parameters */ void (*TexEnv)(GLcontext *ctx, GLenum target, GLenum pname, const GLfloat *param); + /** Set texture parameters */ void (*TexParameter)(GLcontext *ctx, GLenum target, struct gl_texture_object *texObj, GLenum pname, const GLfloat *params); void (*TextureMatrix)(GLcontext *ctx, GLuint unit, const GLmatrix *mat); + /** Set the viewport */ void (*Viewport)(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h); + /*@}*/ + - /*** - *** Vertex array functions - *** - *** Called by the corresponding OpenGL functions. - ***/ + /** + * \name Vertex array functions + * + * Called by the corresponding OpenGL functions. + */ + /*@{*/ void (*VertexPointer)(GLcontext *ctx, GLint size, GLenum type, GLsizei stride, const GLvoid *ptr); void (*NormalPointer)(GLcontext *ctx, GLenum type, @@ -494,111 +690,171 @@ struct dd_function_table { void (*EdgeFlagPointer)(GLcontext *ctx, GLsizei stride, const GLvoid *ptr); void (*VertexAttribPointer)(GLcontext *ctx, GLuint index, GLint size, GLenum type, GLsizei stride, const GLvoid *ptr); + /*@}*/ - /*** State-query functions - *** - *** Return GL_TRUE if query was completed, GL_FALSE otherwise. - ***/ + /** + * \name State-query functions + * + * Return GL_TRUE if query was completed, GL_FALSE otherwise. + */ + /*@{*/ + /** Return the value or values of a selected parameter */ GLboolean (*GetBooleanv)(GLcontext *ctx, GLenum pname, GLboolean *result); + /** Return the value or values of a selected parameter */ GLboolean (*GetDoublev)(GLcontext *ctx, GLenum pname, GLdouble *result); + /** Return the value or values of a selected parameter */ GLboolean (*GetFloatv)(GLcontext *ctx, GLenum pname, GLfloat *result); + /** Return the value or values of a selected parameter */ GLboolean (*GetIntegerv)(GLcontext *ctx, GLenum pname, GLint *result); + /** Return the value or values of a selected parameter */ GLboolean (*GetPointerv)(GLcontext *ctx, GLenum pname, GLvoid **result); + /*@}*/ + - /*** - *** Support for multiple t&l engines - ***/ + /** + * \name Support for multiple T&L engines + */ + /*@{*/ - GLuint NeedValidate; - /* Bitmask of state changes that require the current tnl module to be + /** + * Bitmask of state changes that require the current T&L module to be * validated, using ValidateTnlModule() below. */ + GLuint NeedValidate; - void (*ValidateTnlModule)( GLcontext *ctx, GLuint new_state ); - /* Validate the current tnl module. This is called directly after - * UpdateState() when a state change that has occured matches the - * NeedValidate bitmask above. This ensures all computed values are - * up to date, thus allowing the driver to decide if the current tnl - * module needs to be swapped out. + /** + * Validate the current T&L module. + * + * This is called directly after UpdateState() when a state change that has + * occurred matches the dd_function_table::NeedValidate bitmask above. This + * ensures all computed values are up to date, thus allowing the driver to + * decide if the current T&L module needs to be swapped out. * - * This must be non-NULL if a driver installs a custom tnl module and - * sets the NeedValidate bitmask, but may be NULL otherwise. + * This must be non-NULL if a driver installs a custom T&L module and sets + * the dd_function_table::NeedValidate bitmask, but may be NULL otherwise. */ + void (*ValidateTnlModule)( GLcontext *ctx, GLuint new_state ); #define PRIM_OUTSIDE_BEGIN_END GL_POLYGON+1 #define PRIM_INSIDE_UNKNOWN_PRIM GL_POLYGON+2 #define PRIM_UNKNOWN GL_POLYGON+3 - GLuint CurrentExecPrimitive; - /* Set by the driver-supplied t&l engine. Set to - * PRIM_OUTSIDE_BEGIN_END when outside begin/end. + /** + * Set by the driver-supplied T&L engine. + * + * Set to PRIM_OUTSIDE_BEGIN_END when outside glBegin()/glEnd(). */ + GLuint CurrentExecPrimitive; - GLuint CurrentSavePrimitive; - /* Current state of an in-progress compilation. May take on any of - * the additional values defined above. + /** + * Current state of an in-progress compilation. + * + * May take on any of the additional values PRIM_OUTSIDE_BEGIN_END, + * PRIM_INSIDE_UNKNOWN_PRIM or PRIM_UNKNOWN defined above. */ + GLuint CurrentSavePrimitive; #define FLUSH_STORED_VERTICES 0x1 #define FLUSH_UPDATE_CURRENT 0x2 - GLuint NeedFlush; - /* Set by the driver-supplied t&l engine whenever vertices are - * buffered between begin/end objects or ctx->Current is not uptodate. + /** + * Set by the driver-supplied T&L engine whenever vertices are buffered + * between glBegin()/glEnd() objects or __GLcontextRec::Current is not + * updated. * - * The FlushVertices() call below may be used to resolve + * The dd_function_table::FlushVertices call below may be used to resolve * these conditions. */ + GLuint NeedFlush; - void (*FlushVertices)( GLcontext *ctx, GLuint flags ); - /* If inside begin/end, ASSERT(0). - * Otherwise, - * if (flags & FLUSH_STORED_VERTICES) flushes any buffered vertices, - * if (flags & FLUSH_UPDATE_CURRENT) updates ctx->Current - * and ctx->Light.Material + /** + * If inside glBegin()/glEnd(), it should ASSERT(0). Otherwise, if + * FLUSH_STORED_VERTICES bit in \p flags is set flushes any buffered + * vertices, if FLUSH_UPDATE_CURRENT bit is set updates + * __GLcontextRec::Current and gl_light_attrib::Material * - * Note that the default t&l engine never clears the + * Note that the default T&L engine never clears the * FLUSH_UPDATE_CURRENT bit, even after performing the update. */ + void (*FlushVertices)( GLcontext *ctx, GLuint flags ); - void (*LightingSpaceChange)( GLcontext *ctx ); - /* Notify driver that the special derived value _NeedEyeCoords has + /** + * Notify driver that the special derived value _NeedEyeCoords has * changed. */ + void (*LightingSpaceChange)( GLcontext *ctx ); - void (*NewList)( GLcontext *ctx, GLuint list, GLenum mode ); - void (*EndList)( GLcontext *ctx ); - /* Let the t&l component know what is going on with display lists + /** + * Called by glNewList(). + * + * Let the T&L component know what is going on with display lists * in time to make changes to dispatch tables, etc. - * Called by glNewList() and glEndList(), respectively. */ + void (*NewList)( GLcontext *ctx, GLuint list, GLenum mode ); + /** + * Called by glEndList(). + * + * \sa dd_function_table::NewList. + */ + void (*EndList)( GLcontext *ctx ); - void (*BeginCallList)( GLcontext *ctx, GLuint list ); - void (*EndCallList)( GLcontext *ctx ); - /* Notify the t&l component before and after calling a display list. + /** + * Called by glCallList(s), but not recursively. + * + * Notify the T&L component before and after calling a display list. * Called by glCallList(s), but not recursively. */ + void (*BeginCallList)( GLcontext *ctx, GLuint list ); + /** + * Called by glEndCallList(). + * + * \sa dd_function_table::BeginCallList. + */ + void (*EndCallList)( GLcontext *ctx ); + /** + * Let the T&L component know when the context becomes current. + */ void (*MakeCurrent)( GLcontext *ctx, GLframebuffer *drawBuffer, GLframebuffer *readBuffer ); - /* Let the t&l component know when the context becomes current. - */ - + /** + * Called by glLockArraysEXT(). + */ void (*LockArraysEXT)( GLcontext *ctx, GLint first, GLsizei count ); - void (*UnlockArraysEXT)( GLcontext *ctx ); - /* Called by glLockArraysEXT() and glUnlockArraysEXT(), respectively. + /** + * Called by UnlockArraysEXT(). */ + void (*UnlockArraysEXT)( GLcontext *ctx ); + /*@}*/ }; - -/* +/** * Transform/Clip/Lighting interface + * + * Drivers present a reduced set of the functions possible in + * glBegin()/glEnd() objects. Core mesa provides translation stubs for the + * remaining functions to map down to these entry points. + * + * These are the initial values to be installed into dispatch by + * mesa. If the T&L driver wants to modify the dispatch table + * while installed, it must do so itself. It would be possible for + * the vertexformat to install it's own initial values for these + * functions, but this way there is an obvious list of what is + * expected of the driver. + * + * If the driver wants to hook in entry points other than those + * listed, it must restore them to their original values in + * the disable() callback, below. */ typedef struct { + /** + * \name Vertex + */ + /*@{*/ void (*ArrayElement)( GLint ); /* NOTE */ void (*Color3f)( GLfloat, GLfloat, GLfloat ); void (*Color3fv)( const GLfloat * ); @@ -654,52 +910,48 @@ typedef struct { void (*End)( void ); void (*VertexAttrib4fNV)( GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w ); void (*VertexAttrib4fvNV)( GLuint index, const GLfloat *v ); + /*@}*/ - /* Drivers present a reduced set of the functions possible in - * begin/end objects. Core mesa provides translation stubs for the - * remaining functions to map down to these entrypoints. - * - * These are the initial values to be installed into dispatch by - * mesa. If the t&l driver wants to modify the dispatch table - * while installed, it must do so itself. It would be possible for - * the vertexformat to install it's own initial values for these - * functions, but this way there is an obvious list of what is - * expected of the driver. - * - * If the driver wants to hook in entrypoints other than those - * listed above, it must restore them to their original values in - * the disable() callback, below. - */ - - void (*Rectf)( GLfloat, GLfloat, GLfloat, GLfloat ); /* */ + void (*Rectf)( GLfloat, GLfloat, GLfloat, GLfloat ); + /** + * \name Array + * + * These may or may not belong here. Heuristic: if an array is + * enabled, the installed vertex format should support that array and + * its current size natively. + */ + /*@{*/ void (*DrawArrays)( GLenum mode, GLint start, GLsizei count ); void (*DrawElements)( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices ); void (*DrawRangeElements)( GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices ); - /* These may or may not belong here. Heuristic: If an array is - * enabled, the installed vertex format should support that array and - * it's current size natively. - */ + /*@}*/ - void (*EvalMesh1)( GLenum mode, GLint i1, GLint i2 ); - void (*EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 ); - /* If you don't support eval, fallback to the default vertex format + /** + * \name Eval + * + * If you don't support eval, fallback to the default vertex format * on receiving an eval call and use the pipeline mechanism to - * provide partial t&l acceleration. + * provide partial T&L acceleration. * * Mesa will provide a set of helper functions to do eval within * accelerated vertex formats, eventually... */ + /*@{*/ + void (*EvalMesh1)( GLenum mode, GLint i1, GLint i2 ); + void (*EvalMesh2)( GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2 ); + /*@}*/ - GLboolean prefer_float_colors; - /* Should core try to send colors to glColor4f or glColor4chan, + /** + * Should core try to send colors to glColor4f or glColor4chan, * where it has a choice? */ + GLboolean prefer_float_colors; } GLvertexformat; diff --git a/src/mesa/main/debug.c b/src/mesa/main/debug.c index 7cd30f30bba..c9bf7ce0682 100644 --- a/src/mesa/main/debug.c +++ b/src/mesa/main/debug.c @@ -27,7 +27,26 @@ #include "context.h" #include "imports.h" #include "debug.h" +#include "get.h" +/** + * Primitive names + */ +const char *_mesa_prim_name[GL_POLYGON+4] = { + "GL_POINTS", + "GL_LINES", + "GL_LINE_LOOP", + "GL_LINE_STRIP", + "GL_TRIANGLES", + "GL_TRIANGLE_STRIP", + "GL_TRIANGLE_FAN", + "GL_QUADS", + "GL_QUAD_STRIP", + "GL_POLYGON", + "outside begin/end", + "inside unkown primitive", + "unknown state" +}; void _mesa_print_state( const char *msg, GLuint state ) @@ -87,3 +106,147 @@ _mesa_print_tri_caps( const char *name, GLuint flags ) (flags & DD_TRI_CULL_FRONT_BACK) ? "cull-all, " : "" ); } + + +void +_mesa_check_driver_hooks( GLcontext *ctx ) +{ + ASSERT(ctx->Driver.GetString); + ASSERT(ctx->Driver.UpdateState); + ASSERT(ctx->Driver.Clear); + ASSERT(ctx->Driver.GetBufferSize); + if (ctx->Visual.accumRedBits > 0) { + ASSERT(ctx->Driver.Accum); + } + ASSERT(ctx->Driver.DrawPixels); + ASSERT(ctx->Driver.ReadPixels); + ASSERT(ctx->Driver.CopyPixels); + ASSERT(ctx->Driver.Bitmap); + ASSERT(ctx->Driver.ResizeBuffers); + ASSERT(ctx->Driver.TexImage1D); + ASSERT(ctx->Driver.TexImage2D); + ASSERT(ctx->Driver.TexImage3D); + ASSERT(ctx->Driver.TexSubImage1D); + ASSERT(ctx->Driver.TexSubImage2D); + ASSERT(ctx->Driver.TexSubImage3D); + ASSERT(ctx->Driver.CopyTexImage1D); + ASSERT(ctx->Driver.CopyTexImage2D); + ASSERT(ctx->Driver.CopyTexSubImage1D); + ASSERT(ctx->Driver.CopyTexSubImage2D); + ASSERT(ctx->Driver.CopyTexSubImage3D); + if (ctx->Extensions.ARB_texture_compression) { +#if 0 /* HW drivers need these, but not SW rasterizers */ + ASSERT(ctx->Driver.CompressedTexImage1D); + ASSERT(ctx->Driver.CompressedTexImage2D); + ASSERT(ctx->Driver.CompressedTexImage3D); + ASSERT(ctx->Driver.CompressedTexSubImage1D); + ASSERT(ctx->Driver.CompressedTexSubImage2D); + ASSERT(ctx->Driver.CompressedTexSubImage3D); +#endif + } +} + +/** + * Print information about this Mesa version and build options. + */ +void _mesa_print_info( void ) +{ + _mesa_debug(NULL, "Mesa GL_VERSION = %s\n", + (char *) _mesa_GetString(GL_VERSION)); + _mesa_debug(NULL, "Mesa GL_RENDERER = %s\n", + (char *) _mesa_GetString(GL_RENDERER)); + _mesa_debug(NULL, "Mesa GL_VENDOR = %s\n", + (char *) _mesa_GetString(GL_VENDOR)); + _mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n", + (char *) _mesa_GetString(GL_EXTENSIONS)); +#if defined(THREADS) + _mesa_debug(NULL, "Mesa thread-safe: YES\n"); +#else + _mesa_debug(NULL, "Mesa thread-safe: NO\n"); +#endif +#if defined(USE_X86_ASM) + _mesa_debug(NULL, "Mesa x86-optimized: YES\n"); +#else + _mesa_debug(NULL, "Mesa x86-optimized: NO\n"); +#endif +#if defined(USE_SPARC_ASM) + _mesa_debug(NULL, "Mesa sparc-optimized: YES\n"); +#else + _mesa_debug(NULL, "Mesa sparc-optimized: NO\n"); +#endif +} + + +/** + * Set the debugging flags. + * + * \param debug debug string + * + * If compiled with debugging support then search for keywords in \p debug and + * enables the verbose debug output of the respective feature. + */ +static void add_debug_flags( const char *debug ) +{ +#ifdef MESA_DEBUG + if (_mesa_strstr(debug, "varray")) + MESA_VERBOSE |= VERBOSE_VARRAY; + + if (_mesa_strstr(debug, "tex")) + MESA_VERBOSE |= VERBOSE_TEXTURE; + + if (_mesa_strstr(debug, "imm")) + MESA_VERBOSE |= VERBOSE_IMMEDIATE; + + if (_mesa_strstr(debug, "pipe")) + MESA_VERBOSE |= VERBOSE_PIPELINE; + + if (_mesa_strstr(debug, "driver")) + MESA_VERBOSE |= VERBOSE_DRIVER; + + if (_mesa_strstr(debug, "state")) + MESA_VERBOSE |= VERBOSE_STATE; + + if (_mesa_strstr(debug, "api")) + MESA_VERBOSE |= VERBOSE_API; + + if (_mesa_strstr(debug, "list")) + MESA_VERBOSE |= VERBOSE_DISPLAY_LIST; + + if (_mesa_strstr(debug, "lighting")) + MESA_VERBOSE |= VERBOSE_LIGHTING; + + /* Debug flag: + */ + if (_mesa_strstr(debug, "flush")) + MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH; +#endif +} + + +void +_mesa_init_debug( GLcontext *ctx ) +{ + char *c; + + /* For debug/development only */ + ctx->NoRaster = _mesa_getenv("MESA_NO_RASTER") ? GL_TRUE : GL_FALSE; + ctx->FirstTimeCurrent = GL_TRUE; + + /* Dither disable */ + ctx->NoDither = _mesa_getenv("MESA_NO_DITHER") ? GL_TRUE : GL_FALSE; + if (ctx->NoDither) { + if (_mesa_getenv("MESA_DEBUG")) { + _mesa_debug(ctx, "MESA_NO_DITHER set - dithering disabled\n"); + } + ctx->Color.DitherFlag = GL_FALSE; + } + + c = _mesa_getenv("MESA_DEBUG"); + if (c) + add_debug_flags(c); + + c = _mesa_getenv("MESA_VERBOSE"); + if (c) + add_debug_flags(c); +} + diff --git a/src/mesa/main/debug.h b/src/mesa/main/debug.h index 6b45c033683..4d17771ce52 100644 --- a/src/mesa/main/debug.h +++ b/src/mesa/main/debug.h @@ -1,3 +1,12 @@ +/** + * \file debug.h + * Debugging functions. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -23,11 +32,33 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #ifndef _DEBUG_H #define _DEBUG_H -void _mesa_print_tri_caps( const char *name, GLuint flags ); -void _mesa_print_enable_flags( const char *msg, GLuint flags ); -void _mesa_print_state( const char *msg, GLuint state ); +#if _HAVE_FULL_GL + +extern void _mesa_print_tri_caps( const char *name, GLuint flags ); +extern void _mesa_print_enable_flags( const char *msg, GLuint flags ); +extern void _mesa_print_state( const char *msg, GLuint state ); +extern void _mesa_print_info( void ); +extern void _mesa_init_debug( GLcontext *ctx ); +extern void _mesa_check_driver_hooks( GLcontext *ctx ); + +#else + +/** No-op */ +#define _mesa_print_state( m, s ) ((void)0) + +/** No-op */ +#define _mesa_print_info() ((void)0) + +/** No-op */ +#define _mesa_init_debug( c ) ((void)0) + +/** No-op */ +#define _mesa_check_driver_hooks( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/depth.c b/src/mesa/main/depth.c index 9d95500fcad..fa7eb63b069 100644 --- a/src/mesa/main/depth.c +++ b/src/mesa/main/depth.c @@ -140,3 +140,45 @@ _mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax ) ctx->Depth.BoundsMax = zmax; } + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_depth( GLcontext * ctx ) +{ + /* Depth buffer group */ + ctx->Depth.Test = GL_FALSE; + ctx->Depth.Clear = 1.0; + ctx->Depth.Func = GL_LESS; + ctx->Depth.Mask = GL_TRUE; + ctx->Depth.OcclusionTest = GL_FALSE; + + /* Z buffer stuff */ + if (ctx->Visual.depthBits == 0) { + /* Special case. Even if we don't have a depth buffer we need + * good values for DepthMax for Z vertex transformation purposes + * and for per-fragment fog computation. + */ + ctx->DepthMax = 1 << 16; + ctx->DepthMaxF = (GLfloat) ctx->DepthMax; + } + else if (ctx->Visual.depthBits < 32) { + ctx->DepthMax = (1 << ctx->Visual.depthBits) - 1; + ctx->DepthMaxF = (GLfloat) ctx->DepthMax; + } + else { + /* Special case since shift values greater than or equal to the + * number of bits in the left hand expression's type are undefined. + */ + ctx->DepthMax = 0xffffffff; + ctx->DepthMaxF = (GLfloat) ctx->DepthMax; + } + ctx->MRD = 1.0; /* Minimum resolvable depth value, for polygon offset */ + +#if FEATURE_ARB_occlusion_query + ctx->Occlusion.QueryObjects = _mesa_NewHashTable(); +#endif + ctx->OcclusionResult = GL_FALSE; + ctx->OcclusionResultSaved = GL_FALSE; +} diff --git a/src/mesa/main/depth.h b/src/mesa/main/depth.h index b90d723b38c..ce5f28e84d6 100644 --- a/src/mesa/main/depth.h +++ b/src/mesa/main/depth.h @@ -1,3 +1,8 @@ +/** + * \file depth.h + * Depth buffer operations. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -30,24 +35,28 @@ #include "mtypes.h" -/* - * Immediate-mode API entrpoints - */ +#if _HAVE_FULL_GL extern void _mesa_ClearDepth( GLclampd depth ); - extern void _mesa_DepthFunc( GLenum func ); - extern void _mesa_DepthMask( GLboolean flag ); +extern void +_mesa_init_depth( GLcontext * ctx ); extern void _mesa_DepthBoundsEXT( GLclampd zmin, GLclampd zmax ); +#else + +/** No-op */ +#define _mesa_init_depth( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c index 8513b458018..928b74cb540 100644 --- a/src/mesa/main/dlist.c +++ b/src/mesa/main/dlist.c @@ -1,3 +1,8 @@ +/** + * \file dlist.c + * Display lists management functions. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -22,6 +27,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "imports.h" #include "api_loopback.h" @@ -72,47 +78,48 @@ -/* -Functions which aren't compiled but executed immediately: - glIsList - glGenLists - glDeleteLists - glEndList --- BUT: call ctx->Driver.EndList at end of list execution? - glFeedbackBuffer - glSelectBuffer - glRenderMode - glReadPixels - glPixelStore - glFlush - glFinish - glIsEnabled - glGet* - -Functions which cause errors if called while compiling a display list: - glNewList -*/ +/** + * Functions which aren't compiled but executed immediately: + * - glIsList + * - glGenLists + * - glDeleteLists + * - glEndList --- BUT: call ctx->Driver.EndList at end of list execution? + * - glFeedbackBuffer + * - glSelectBuffer + * - glRenderMode + * - glReadPixels + * - glPixelStore + * - glFlush + * - glFinish + * - glIsEnabled + * - glGet* + * + * Functions which cause errors if called while compiling a display list: + * - glNewList + */ -/* +/** * Display list instructions are stored as sequences of "nodes". Nodes * are allocated in blocks. Each block has BLOCK_SIZE nodes. Blocks * are linked together with a pointer. */ -/* How many nodes to allocate at a time: - * - reduced now that we hold vertices etc. elsewhere. +/** + * How many nodes to allocate at a time. + * + * \note Reduced now that we hold vertices etc. elsewhere. */ #define BLOCK_SIZE 256 -/* +/** * Display list opcodes. * * The fact that these identifiers are assigned consecutive * integer values starting at 0 is very important, see InstSize array usage) - * */ typedef enum { OPCODE_ACCUM, @@ -265,10 +272,12 @@ typedef enum { } OpCode; -/* +/** + * Display list node. + * * Each instruction in the display list is stored as a sequence of * contiguous nodes in memory. - * Each node is the union of a variety of datatypes. + * Each node is the union of a variety of data types. */ union node { OpCode opcode; @@ -286,9 +295,9 @@ union node { }; - -/* Number of nodes of storage needed for each instruction. Sizes for - * dynamically allocated opcodes are stored in the context struct. +/** + * Number of nodes of storage needed for each instruction. + * Sizes for dynamically allocated opcodes are stored in the context struct. */ static GLuint InstSize[ OPCODE_END_OF_LIST+1 ]; @@ -299,10 +308,6 @@ void mesa_print_display_list( GLuint list ); /***** Private *****/ /**********************************************************************/ - - - - /* * Make an empty display list. This is used by glGenLists() to * reserver display list IDs. @@ -318,7 +323,7 @@ static Node *make_empty_list( void ) /* * Destroy all nodes in a display list. - * Input: list - display list number + * \param list - display list number */ void _mesa_destroy_list( GLcontext *ctx, GLuint list ) { @@ -682,9 +687,9 @@ void _mesa_init_lists( void ) /* * Allocate space for a display list instruction. - * Input: opcode - type of instruction + * \param opcode - type of instruction * argcount - size in bytes of data required. - * Return: pointer to the usable data area (not including the internal + * \return pointer to the usable data area (not including the internal * opcode). */ void * @@ -4444,7 +4449,7 @@ islist(GLcontext *ctx, GLuint list) * Execute a display list. Note that the ListBase offset must have already * been added before calling this function. I.e. the list argument is * the absolute list number, not relative to ListBase. - * Input: list - display list number + * \param list - display list number */ static void execute_list( GLcontext *ctx, GLuint list ) @@ -4515,7 +4520,7 @@ execute_list( GLcontext *ctx, GLuint list ) case OPCODE_CALL_LIST_OFFSET: /* Generated by glCallLists() so we must add ListBase */ if (n[2].b) { - /* user specified a bad datatype at compile time */ + /* user specified a bad data type at compile time */ _mesa_error(ctx, GL_INVALID_ENUM, "glCallLists(type)"); } else if (ctx->CallDepth < MAX_LIST_NESTING) { @@ -6785,3 +6790,24 @@ void mesa_print_display_list( GLuint list ) GET_CURRENT_CONTEXT(ctx); print_list( ctx, list ); } + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_display_list( GLcontext * ctx ) +{ + /* Display list */ + ctx->CallDepth = 0; + ctx->ExecuteFlag = GL_TRUE; + ctx->CompileFlag = GL_FALSE; + ctx->CurrentListPtr = NULL; + ctx->CurrentBlock = NULL; + ctx->CurrentListNum = 0; + ctx->CurrentPos = 0; + + /* Display List group */ + ctx->List.ListBase = 0; + +} diff --git a/src/mesa/main/dlist.h b/src/mesa/main/dlist.h index 9880aa07935..b8d115cd829 100644 --- a/src/mesa/main/dlist.h +++ b/src/mesa/main/dlist.h @@ -1,3 +1,7 @@ +/** + * \file dlist.h + * Display lists management. + */ /* * Mesa 3-D graphics library @@ -24,6 +28,7 @@ */ + #ifndef DLIST_H #define DLIST_H @@ -31,6 +36,13 @@ #include "mtypes.h" +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ #define ASSERT_OUTSIDE_SAVE_BEGIN_END_WITH_RETVAL(ctx, retval) \ do { \ if (ctx->Driver.CurrentSavePrimitive <= GL_POLYGON || \ @@ -40,6 +52,12 @@ do { \ } \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair. + * + * \param ctx GL context. + */ #define ASSERT_OUTSIDE_SAVE_BEGIN_END(ctx) \ do { \ if (ctx->Driver.CurrentSavePrimitive <= GL_POLYGON || \ @@ -49,12 +67,25 @@ do { \ } \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices. + * + * \param ctx GL context. + */ #define ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx) \ do { \ ASSERT_OUTSIDE_SAVE_BEGIN_END(ctx); \ FLUSH_VERTICES(ctx, 0); \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ #define ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval)\ do { \ ASSERT_OUTSIDE_SAVE_BEGIN_END_WITH_RETVAL(ctx, retval); \ @@ -62,6 +93,8 @@ do { \ } while (0) +#if _HAVE_FULL_GL + extern void _mesa_init_lists( void ); extern void _mesa_destroy_list( GLcontext *ctx, GLuint list ); @@ -102,7 +135,22 @@ extern void _mesa_save_EvalMesh2(GLenum mode, GLint i1, GLint i2, extern void _mesa_save_EvalMesh1( GLenum mode, GLint i1, GLint i2 ); extern void _mesa_save_CallLists( GLsizei n, GLenum type, const GLvoid *lists ); extern void _mesa_save_CallList( GLuint list ); +extern void _mesa_init_display_list( GLcontext * ctx ); + +#else + +/** No-op */ +#define _mesa_init_lists() ((void)0) +/** No-op */ +#define _mesa_destroy_list(c,l) ((void)0) +/** No-op */ +#define _mesa_init_dlist_table(t,ts) ((void)0) + +/** No-op */ +#define _mesa_init_display_list(c) ((void)0) + +#endif #endif diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c index 4597cd09162..83196d3de01 100644 --- a/src/mesa/main/drawpix.c +++ b/src/mesa/main/drawpix.c @@ -33,6 +33,7 @@ #include "state.h" #include "mtypes.h" +#if _HAVE_FULL_GL /* * Execute glDrawPixels @@ -86,35 +87,6 @@ _mesa_DrawPixels( GLsizei width, GLsizei height, } } - - -void -_mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height, - GLenum format, GLenum type, GLvoid *pixels ) -{ - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (width < 0 || height < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, - "glReadPixels(width=%d height=%d)", width, height ); - return; - } - - if (!pixels) { - _mesa_error( ctx, GL_INVALID_VALUE, "glReadPixels(pixels)" ); - return; - } - - if (ctx->NewState) - _mesa_update_state(ctx); - - ctx->Driver.ReadPixels(ctx, x, y, width, height, - format, type, &ctx->Pack, pixels); -} - - - void _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height, GLenum type ) @@ -163,6 +135,37 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height, } } +#endif + + + +void +_mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, GLvoid *pixels ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + + if (width < 0 || height < 0) { + _mesa_error( ctx, GL_INVALID_VALUE, + "glReadPixels(width=%d height=%d)", width, height ); + return; + } + + if (!pixels) { + _mesa_error( ctx, GL_INVALID_VALUE, "glReadPixels(pixels)" ); + return; + } + + if (ctx->NewState) + _mesa_update_state(ctx); + + ctx->Driver.ReadPixels(ctx, x, y, width, height, + format, type, &ctx->Pack, pixels); +} + + + void @@ -196,6 +199,7 @@ _mesa_Bitmap( GLsizei width, GLsizei height, ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap ); } } +#if _HAVE_FULL_GL else if (ctx->RenderMode==GL_FEEDBACK) { if (ctx->Current.RasterPosValid) { FLUSH_CURRENT(ctx, 0); @@ -210,6 +214,7 @@ _mesa_Bitmap( GLsizei width, GLsizei height, else if (ctx->RenderMode==GL_SELECT) { /* Bitmaps don't generate selection hits. See appendix B of 1.1 spec. */ } +#endif /* update raster position */ ctx->Current.RasterPos[0] += xmove; diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c index 747c3f63c1b..de08fa35135 100644 --- a/src/mesa/main/enable.c +++ b/src/mesa/main/enable.c @@ -1,3 +1,8 @@ +/** + * \file enable.c + * Enable/disable/query GL capabilities. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -135,7 +140,16 @@ client_state( GLcontext *ctx, GLenum cap, GLboolean state ) } - +/** + * Enable GL capability. + * + * \param cap capability. + * + * \sa glEnable(). + * + * Get's the current context, assures that we're outside glBegin()/glEnd() and + * calls client_state(). + */ void _mesa_EnableClientState( GLenum cap ) { @@ -145,7 +159,16 @@ _mesa_EnableClientState( GLenum cap ) } - +/** + * Disable GL capability. + * + * \param cap capability. + * + * \sa glDisable(). + * + * Get's the current context, assures that we're outside glBegin()/glEnd() and + * calls client_state(). + */ void _mesa_DisableClientState( GLenum cap ) { @@ -164,8 +187,17 @@ _mesa_DisableClientState( GLenum cap ) } -/* - * Perform glEnable and glDisable calls. +/** + * Perform glEnable() and glDisable() calls. + * + * \param ctx GL context. + * \param cap capability. + * \param state whether to enable or disable the specified capability. + * + * Updates the current context and flushes the vertices as needed. For + * capabilities associated with extensions it verifies that those extensions + * are effectivly present before updating. Notifies the driver via + * dd_function_table::Enable. */ void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state ) { @@ -197,6 +229,7 @@ void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state ) ctx->Color.ColorLogicOpEnabled = (ctx->Color.BlendEquation == GL_LOGIC_OP && state); break; +#if FEATURE_userclip case GL_CLIP_PLANE0: case GL_CLIP_PLANE1: case GL_CLIP_PLANE2: @@ -230,6 +263,7 @@ void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state ) } } break; +#endif case GL_COLOR_MATERIAL: if (ctx->Light.ColorMaterialEnabled == state) return; @@ -949,6 +983,16 @@ void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state ) } +/** + * Enable GL capability. + * + * \param cap capability. + * + * \sa glEnable(). + * + * Get's the current context, assures that we're outside glBegin()/glEnd() and + * calls _mesa_set_enable(). + */ void _mesa_Enable( GLenum cap ) { @@ -959,6 +1003,16 @@ _mesa_Enable( GLenum cap ) } +/** + * Disable GL capability. + * + * \param cap capability. + * + * \sa glDisable(). + * + * Get's the current context, assures that we're outside glBegin()/glEnd() and + * calls _mesa_set_enable(). + */ void _mesa_Disable( GLenum cap ) { @@ -977,6 +1031,15 @@ _mesa_Disable( GLenum cap ) } +/** + * Test whether a capability is enabled. + * + * \param cap capability. + * + * Returns the state of the specified capability from the current GL context. + * For the capabilities associated with extensions verifies that those + * extensions are effectively present before reporting. + */ GLboolean _mesa_IsEnabled( GLenum cap ) { diff --git a/src/mesa/main/enable.h b/src/mesa/main/enable.h index bf71f1773f7..eeafb2dddd4 100644 --- a/src/mesa/main/enable.h +++ b/src/mesa/main/enable.h @@ -1,3 +1,7 @@ +/** + * \file enable.h + * Enable/disable/query GL capabilities. + */ /* * Mesa 3-D graphics library diff --git a/src/mesa/main/enums.h b/src/mesa/main/enums.h index ff59233296a..1e7b86e3a09 100644 --- a/src/mesa/main/enums.h +++ b/src/mesa/main/enums.h @@ -1,3 +1,12 @@ +/** + * \file enums.h + * Enumeration name/number lookup functions. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -27,7 +36,20 @@ #ifndef _ENUMS_H_ #define _ENUMS_H_ + +#if _HAVE_FULL_GL + extern const char *_mesa_lookup_enum_by_nr( int nr ); extern int _mesa_lookup_enum_by_name( const char *symbol ); +#else + +/** No-op */ +#define _mesa_lookup_enum_by_name( s ) 0 + +/** No-op */ +#define _mesa_lookup_enum_by_nr( n ) "unknown" + +#endif + #endif diff --git a/src/mesa/main/eval.c b/src/mesa/main/eval.c index 03d779e8941..314ecf0491d 100644 --- a/src/mesa/main/eval.c +++ b/src/mesa/main/eval.c @@ -200,8 +200,8 @@ get_2d_map( GLcontext *ctx, GLenum target ) /* * Copy 1-parametric evaluator control points from user-specified * memory space to a buffer of contiguous control points. - * Input: see glMap1f for details - * Return: pointer to buffer of contiguous control points or NULL if out + * \param see glMap1f for details + * \return pointer to buffer of contiguous control points or NULL if out * of memory. */ GLfloat *_mesa_copy_map_points1f( GLenum target, GLint ustride, GLint uorder, @@ -255,8 +255,8 @@ GLfloat *_mesa_copy_map_points1d( GLenum target, GLint ustride, GLint uorder, * Additional memory is allocated to be used by the horner and * de Casteljau evaluation schemes. * - * Input: see glMap2f for details - * Return: pointer to buffer of contiguous control points or NULL if out + * \param see glMap2f for details + * \return pointer to buffer of contiguous control points or NULL if out * of memory. */ GLfloat *_mesa_copy_map_points2f( GLenum target, @@ -795,3 +795,168 @@ _mesa_MapGrid2d( GLint un, GLdouble u1, GLdouble u2, _mesa_MapGrid2f( un, (GLfloat) u1, (GLfloat) u2, vn, (GLfloat) v1, (GLfloat) v2 ); } + + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +/** + * Initialize a 1-D evaluator map. + */ +static void +init_1d_map( struct gl_1d_map *map, int n, const float *initial ) +{ + map->Order = 1; + map->u1 = 0.0; + map->u2 = 1.0; + map->Points = (GLfloat *) MALLOC(n * sizeof(GLfloat)); + if (map->Points) { + GLint i; + for (i=0;i<n;i++) + map->Points[i] = initial[i]; + } +} + + +/** + * Initialize a 2-D evaluator map + */ +static void +init_2d_map( struct gl_2d_map *map, int n, const float *initial ) +{ + map->Uorder = 1; + map->Vorder = 1; + map->u1 = 0.0; + map->u2 = 1.0; + map->v1 = 0.0; + map->v2 = 1.0; + map->Points = (GLfloat *) MALLOC(n * sizeof(GLfloat)); + if (map->Points) { + GLint i; + for (i=0;i<n;i++) + map->Points[i] = initial[i]; + } +} + + +void _mesa_init_eval( GLcontext *ctx ) +{ + int i; + + /* Evaluators group */ + ctx->Eval.Map1Color4 = GL_FALSE; + ctx->Eval.Map1Index = GL_FALSE; + ctx->Eval.Map1Normal = GL_FALSE; + ctx->Eval.Map1TextureCoord1 = GL_FALSE; + ctx->Eval.Map1TextureCoord2 = GL_FALSE; + ctx->Eval.Map1TextureCoord3 = GL_FALSE; + ctx->Eval.Map1TextureCoord4 = GL_FALSE; + ctx->Eval.Map1Vertex3 = GL_FALSE; + ctx->Eval.Map1Vertex4 = GL_FALSE; + MEMSET(ctx->Eval.Map1Attrib, 0, sizeof(ctx->Eval.Map1Attrib)); + ctx->Eval.Map2Color4 = GL_FALSE; + ctx->Eval.Map2Index = GL_FALSE; + ctx->Eval.Map2Normal = GL_FALSE; + ctx->Eval.Map2TextureCoord1 = GL_FALSE; + ctx->Eval.Map2TextureCoord2 = GL_FALSE; + ctx->Eval.Map2TextureCoord3 = GL_FALSE; + ctx->Eval.Map2TextureCoord4 = GL_FALSE; + ctx->Eval.Map2Vertex3 = GL_FALSE; + ctx->Eval.Map2Vertex4 = GL_FALSE; + MEMSET(ctx->Eval.Map2Attrib, 0, sizeof(ctx->Eval.Map2Attrib)); + ctx->Eval.AutoNormal = GL_FALSE; + ctx->Eval.MapGrid1un = 1; + ctx->Eval.MapGrid1u1 = 0.0; + ctx->Eval.MapGrid1u2 = 1.0; + ctx->Eval.MapGrid2un = 1; + ctx->Eval.MapGrid2vn = 1; + ctx->Eval.MapGrid2u1 = 0.0; + ctx->Eval.MapGrid2u2 = 1.0; + ctx->Eval.MapGrid2v1 = 0.0; + ctx->Eval.MapGrid2v2 = 1.0; + + /* Evaluator data */ + { + static GLfloat vertex[4] = { 0.0, 0.0, 0.0, 1.0 }; + static GLfloat normal[3] = { 0.0, 0.0, 1.0 }; + static GLfloat index[1] = { 1.0 }; + static GLfloat color[4] = { 1.0, 1.0, 1.0, 1.0 }; + static GLfloat texcoord[4] = { 0.0, 0.0, 0.0, 1.0 }; + static GLfloat attrib[4] = { 0.0, 0.0, 0.0, 1.0 }; + + init_1d_map( &ctx->EvalMap.Map1Vertex3, 3, vertex ); + init_1d_map( &ctx->EvalMap.Map1Vertex4, 4, vertex ); + init_1d_map( &ctx->EvalMap.Map1Index, 1, index ); + init_1d_map( &ctx->EvalMap.Map1Color4, 4, color ); + init_1d_map( &ctx->EvalMap.Map1Normal, 3, normal ); + init_1d_map( &ctx->EvalMap.Map1Texture1, 1, texcoord ); + init_1d_map( &ctx->EvalMap.Map1Texture2, 2, texcoord ); + init_1d_map( &ctx->EvalMap.Map1Texture3, 3, texcoord ); + init_1d_map( &ctx->EvalMap.Map1Texture4, 4, texcoord ); + for (i = 0; i < 16; i++) + init_1d_map( ctx->EvalMap.Map1Attrib + i, 4, attrib ); + + init_2d_map( &ctx->EvalMap.Map2Vertex3, 3, vertex ); + init_2d_map( &ctx->EvalMap.Map2Vertex4, 4, vertex ); + init_2d_map( &ctx->EvalMap.Map2Index, 1, index ); + init_2d_map( &ctx->EvalMap.Map2Color4, 4, color ); + init_2d_map( &ctx->EvalMap.Map2Normal, 3, normal ); + init_2d_map( &ctx->EvalMap.Map2Texture1, 1, texcoord ); + init_2d_map( &ctx->EvalMap.Map2Texture2, 2, texcoord ); + init_2d_map( &ctx->EvalMap.Map2Texture3, 3, texcoord ); + init_2d_map( &ctx->EvalMap.Map2Texture4, 4, texcoord ); + for (i = 0; i < 16; i++) + init_2d_map( ctx->EvalMap.Map2Attrib + i, 4, attrib ); + } +} + + +void _mesa_free_eval_data( GLcontext *ctx ) +{ + int i; + + /* Free evaluator data */ + if (ctx->EvalMap.Map1Vertex3.Points) + FREE( ctx->EvalMap.Map1Vertex3.Points ); + if (ctx->EvalMap.Map1Vertex4.Points) + FREE( ctx->EvalMap.Map1Vertex4.Points ); + if (ctx->EvalMap.Map1Index.Points) + FREE( ctx->EvalMap.Map1Index.Points ); + if (ctx->EvalMap.Map1Color4.Points) + FREE( ctx->EvalMap.Map1Color4.Points ); + if (ctx->EvalMap.Map1Normal.Points) + FREE( ctx->EvalMap.Map1Normal.Points ); + if (ctx->EvalMap.Map1Texture1.Points) + FREE( ctx->EvalMap.Map1Texture1.Points ); + if (ctx->EvalMap.Map1Texture2.Points) + FREE( ctx->EvalMap.Map1Texture2.Points ); + if (ctx->EvalMap.Map1Texture3.Points) + FREE( ctx->EvalMap.Map1Texture3.Points ); + if (ctx->EvalMap.Map1Texture4.Points) + FREE( ctx->EvalMap.Map1Texture4.Points ); + for (i = 0; i < 16; i++) + FREE((ctx->EvalMap.Map1Attrib[i].Points)); + + if (ctx->EvalMap.Map2Vertex3.Points) + FREE( ctx->EvalMap.Map2Vertex3.Points ); + if (ctx->EvalMap.Map2Vertex4.Points) + FREE( ctx->EvalMap.Map2Vertex4.Points ); + if (ctx->EvalMap.Map2Index.Points) + FREE( ctx->EvalMap.Map2Index.Points ); + if (ctx->EvalMap.Map2Color4.Points) + FREE( ctx->EvalMap.Map2Color4.Points ); + if (ctx->EvalMap.Map2Normal.Points) + FREE( ctx->EvalMap.Map2Normal.Points ); + if (ctx->EvalMap.Map2Texture1.Points) + FREE( ctx->EvalMap.Map2Texture1.Points ); + if (ctx->EvalMap.Map2Texture2.Points) + FREE( ctx->EvalMap.Map2Texture2.Points ); + if (ctx->EvalMap.Map2Texture3.Points) + FREE( ctx->EvalMap.Map2Texture3.Points ); + if (ctx->EvalMap.Map2Texture4.Points) + FREE( ctx->EvalMap.Map2Texture4.Points ); + for (i = 0; i < 16; i++) + FREE((ctx->EvalMap.Map2Attrib[i].Points)); +} diff --git a/src/mesa/main/eval.h b/src/mesa/main/eval.h index 2e4f5227e4b..525835c7d5d 100644 --- a/src/mesa/main/eval.h +++ b/src/mesa/main/eval.h @@ -1,3 +1,12 @@ +/** + * \file eval.h + * Eval operations. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -30,8 +39,10 @@ #include "mtypes.h" +#if _HAVE_FULL_GL -extern void _mesa_init_eval( void ); +extern void _mesa_init_eval( GLcontext *ctx ); +extern void _mesa_free_eval_data( GLcontext *ctx ); extern GLuint _mesa_evaluator_components( GLenum target ); @@ -104,5 +115,14 @@ _mesa_GetMapfv( GLenum target, GLenum query, GLfloat *v ); extern void _mesa_GetMapiv( GLenum target, GLenum query, GLint *v ); +#else + +/** No-op */ +#define _mesa_init_eval( c ) ((void)0) + +/** No-op */ +#define _mesa_free_eval_data( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c index 75972c75593..db5c43e42d0 100644 --- a/src/mesa/main/extensions.c +++ b/src/mesa/main/extensions.c @@ -22,6 +22,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "imports.h" #include "context.h" @@ -426,3 +427,10 @@ _mesa_make_extension_string( GLcontext *ctx ) return s; } + +void +_mesa_extensions_dtr( GLcontext *ctx ) +{ + if (ctx->Extensions.String) + FREE((void *) ctx->Extensions.String); +} diff --git a/src/mesa/main/extensions.h b/src/mesa/main/extensions.h index 8be86897991..54aa25511b4 100644 --- a/src/mesa/main/extensions.h +++ b/src/mesa/main/extensions.h @@ -1,3 +1,13 @@ +/** + * \file extensions.h + * Extension handling. + * + * \if subset + * (No-op) + * + * \endif + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -28,6 +38,7 @@ #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_enable_sw_extensions(GLcontext *ctx); @@ -49,4 +60,23 @@ extern void _mesa_init_extensions(GLcontext *ctx); extern GLubyte *_mesa_make_extension_string(GLcontext *ctx); +#else + +/** No-op */ +#define _mesa_extensions_dtr( ctx ) ((void)0) + +/** No-op */ +#define _mesa_extensions_ctr( ctx ) ((void)0) + +/** No-op */ +#define _mesa_extensions_get_string( ctx ) "GL_EXT_texture_object" + +/** No-op */ +#define _mesa_enable_imaging_extensions( c ) ((void)0) + +/** No-op */ +#define _mesa_enable_extension( c, n ) ((void)0) + +#endif + #endif diff --git a/src/mesa/main/feedback.c b/src/mesa/main/feedback.c index 53c43cf3176..731fdf86bb8 100644 --- a/src/mesa/main/feedback.c +++ b/src/mesa/main/feedback.c @@ -1,3 +1,7 @@ +/** + * \file feedback.c + * Selection and feedback modes functions. + */ /* * Mesa 3-D graphics library @@ -33,6 +37,8 @@ #include "mtypes.h" +#if _HAVE_FULL_GL + #define FB_3D 0x01 #define FB_4D 0x02 @@ -145,14 +151,25 @@ void _mesa_feedback_vertex( GLcontext *ctx, } } - -/**********************************************************************/ -/* Selection */ -/**********************************************************************/ +#endif -/* - * NOTE: this function can't be put in a display list. +/**********************************************************************/ +/** \name Selection */ +/*@{*/ + +/** + * Establish a buffer for selection mode values. + * + * \param size buffer size. + * \param buffer buffer. + * + * \sa glSelectBuffer(). + * + * \note this function can't be put in a display list. + * + * Verifies we're not in selection mode, flushes the vertices and initialize + * the fields in __GLcontextRec::Select with the given buffer. */ void _mesa_SelectBuffer( GLsizei size, GLuint *buffer ) @@ -165,7 +182,7 @@ _mesa_SelectBuffer( GLsizei size, GLuint *buffer ) return; /* KW: added return */ } - FLUSH_VERTICES(ctx, _NEW_RENDERMODE); /* why bother? */ + FLUSH_VERTICES(ctx, _NEW_RENDERMODE); ctx->Select.Buffer = buffer; ctx->Select.BufferSize = size; ctx->Select.BufferCount = 0; @@ -175,6 +192,15 @@ _mesa_SelectBuffer( GLsizei size, GLuint *buffer ) } +/** + * Write a value of a record into the selection buffer. + * + * \param CTX GL context. + * \param V value. + * + * Verifies there is free space in the buffer to write the value and + * increments the pointer. + */ #define WRITE_RECORD( CTX, V ) \ if (CTX->Select.BufferCount < CTX->Select.BufferSize) { \ CTX->Select.Buffer[CTX->Select.BufferCount] = (V); \ @@ -182,7 +208,15 @@ _mesa_SelectBuffer( GLsizei size, GLuint *buffer ) CTX->Select.BufferCount++; - +/** + * Update the hit flag and the maximum and minimum depth values. + * + * \param ctx GL context. + * \param z depth. + * + * Sets gl_selection::HitFlag and updates gl_selection::HitMinZ and + * gl_selection::HitMaxZ. + */ void _mesa_update_hitflag( GLcontext *ctx, GLfloat z ) { ctx->Select.HitFlag = GL_TRUE; @@ -195,6 +229,17 @@ void _mesa_update_hitflag( GLcontext *ctx, GLfloat z ) } +/** + * Write the hit record. + * + * \param ctx GL context. + * + * Write the hit record, i.e., the number of names in the stack, the minimum and + * maximum depth values and the number of names in the name stack at the time + * of the event. Resets the hit flag. + * + * \sa gl_selection. + */ static void write_hit_record( GLcontext *ctx ) { GLuint i; @@ -221,7 +266,13 @@ static void write_hit_record( GLcontext *ctx ) } - +/** + * Initialize the name stack. + * + * Verifies we are in select mode and resets the name stack depth and resets + * the hit record data in gl_selection. Marks new render mode in + * __GLcontextRec::NewState. + */ void _mesa_InitNames( void ) { @@ -242,7 +293,17 @@ _mesa_InitNames( void ) } - +/** + * Load the top-most name of the name stack. + * + * \param name name. + * + * Verifies we are in selection mode and that the name stack is not empty. + * Flushes vertices. If there is a hit flag writes it (via write_hit_record()), + * and replace the top-most name in the stack. + * + * sa __GLcontextRec::Select. + */ void _mesa_LoadName( GLuint name ) { @@ -271,6 +332,17 @@ _mesa_LoadName( GLuint name ) } +/** + * Push a name into the name stack. + * + * \param name name. + * + * Verifies we are in selection mode and that the name stack is not full. + * Flushes vertices. If there is a hit flag writes it (via write_hit_record()), + * and adds the name to the top of the name stack. + * + * sa __GLcontextRec::Select. + */ void _mesa_PushName( GLuint name ) { @@ -293,7 +365,15 @@ _mesa_PushName( GLuint name ) } - +/** + * Pop a name into the name stack. + * + * Verifies we are in selection mode and that the name stack is not empty. + * Flushes vertices. If there is a hit flag writes it (via write_hit_record()), + * and removes top-most name in the name stack. + * + * sa __GLcontextRec::Select. + */ void _mesa_PopName( void ) { @@ -315,16 +395,27 @@ _mesa_PopName( void ) ctx->Select.NameStackDepth--; } +/*@}*/ /**********************************************************************/ -/* Render Mode */ -/**********************************************************************/ - +/** \name Render Mode */ +/*@{*/ - -/* - * NOTE: this function can't be put in a display list. +/** + * Set rasterization mode. + * + * \param mode rasterization mode. + * + * \note this function can't be put in a display list. + * + * \sa glRenderMode(). + * + * Flushes the vertices and do the necessary cleanup according to the previous + * rasterization mode, such as writing the hit record or resent the select + * buffer index when exiting the select mode. Updates + * __GLcontextRec::RenderMode and notifies the driver via the + * dd_function_table::RenderMode callback. */ GLint _mesa_RenderMode( GLenum mode ) @@ -360,6 +451,7 @@ _mesa_RenderMode( GLenum mode ) ctx->Select.Hits = 0; ctx->Select.NameStackDepth = 0; break; +#if _HAVE_FULL_GL case GL_FEEDBACK: if (ctx->Feedback.Count > ctx->Feedback.BufferSize) { /* overflow */ @@ -370,6 +462,7 @@ _mesa_RenderMode( GLenum mode ) } ctx->Feedback.Count = 0; break; +#endif default: _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" ); return 0; @@ -384,12 +477,14 @@ _mesa_RenderMode( GLenum mode ) _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" ); } break; +#if _HAVE_FULL_GL case GL_FEEDBACK: if (ctx->Feedback.BufferSize==0) { /* haven't called glFeedbackBuffer yet */ _mesa_error( ctx, GL_INVALID_OPERATION, "glRenderMode" ); } break; +#endif default: _mesa_error( ctx, GL_INVALID_ENUM, "glRenderMode" ); return 0; @@ -401,3 +496,34 @@ _mesa_RenderMode( GLenum mode ) return result; } + +/*@}*/ + + +/**********************************************************************/ +/** \name Initialization */ +/*@{*/ + +/** + * Initialize context feedback data. + */ +void _mesa_init_feedback( GLcontext * ctx ) +{ + /* Feedback */ + ctx->Feedback.Type = GL_2D; /* TODO: verify */ + ctx->Feedback.Buffer = NULL; + ctx->Feedback.BufferSize = 0; + ctx->Feedback.Count = 0; + + /* Selection/picking */ + ctx->Select.Buffer = NULL; + ctx->Select.BufferSize = 0; + ctx->Select.BufferCount = 0; + ctx->Select.Hits = 0; + ctx->Select.NameStackDepth = 0; + + /* Miscellaneous */ + ctx->RenderMode = GL_RENDER; +} + +/*@}*/ diff --git a/src/mesa/main/feedback.h b/src/mesa/main/feedback.h index e91546248ae..e1f47030c91 100644 --- a/src/mesa/main/feedback.h +++ b/src/mesa/main/feedback.h @@ -1,3 +1,7 @@ +/** + * \file feedback.h + * Selection and feedback modes functions. + */ /* * Mesa 3-D graphics library @@ -38,6 +42,8 @@ CTX->Feedback.Count++; +extern void _mesa_init_feedback( GLcontext * ctx ); + extern void _mesa_feedback_vertex( GLcontext *ctx, const GLfloat win[4], const GLfloat color[4], diff --git a/src/mesa/main/fog.c b/src/mesa/main/fog.c index 79f480db37b..b7f967ed673 100644 --- a/src/mesa/main/fog.c +++ b/src/mesa/main/fog.c @@ -156,3 +156,22 @@ _mesa_Fogfv( GLenum pname, const GLfloat *params ) (*ctx->Driver.Fogfv)( ctx, pname, params ); } } + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_fog( GLcontext * ctx ) +{ + /* Fog group */ + ctx->Fog.Enabled = GL_FALSE; + ctx->Fog.Mode = GL_EXP; + ASSIGN_4V( ctx->Fog.Color, 0.0, 0.0, 0.0, 0.0 ); + ctx->Fog.Index = 0.0; + ctx->Fog.Density = 1.0; + ctx->Fog.Start = 0.0; + ctx->Fog.End = 1.0; + ctx->Fog.ColorSumEnabled = GL_FALSE; + ctx->Fog.FogCoordinateSource = GL_FRAGMENT_DEPTH_EXT; +} diff --git a/src/mesa/main/fog.h b/src/mesa/main/fog.h index cd7f59cc6d2..4a0417545b5 100644 --- a/src/mesa/main/fog.h +++ b/src/mesa/main/fog.h @@ -1,3 +1,12 @@ +/** + * \file fog.h + * Fog operations. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -31,21 +40,27 @@ #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_Fogf(GLenum pname, GLfloat param); - extern void _mesa_Fogi(GLenum pname, GLint param ); - extern void _mesa_Fogfv(GLenum pname, const GLfloat *params ); - extern void _mesa_Fogiv(GLenum pname, const GLint *params ); +extern void _mesa_init_fog( GLcontext * ctx ); + +#else + +/** No-op */ +#define _mesa_init_fog( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c index b0de5e7ec06..a2377753858 100644 --- a/src/mesa/main/get.c +++ b/src/mesa/main/get.c @@ -1,3 +1,8 @@ +/** + * \file get.c + * State query functions. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -107,6 +112,18 @@ pixel_texgen_mode(const GLcontext *ctx) } +/** + * Get the value(s) of a selected parameter. + * + * \param pname parameter to be returned. + * \param params will hold the value(s) of the speficifed parameter. + * + * \sa glGetBooleanv(). + * + * Tries to get the specified parameter via dd_function_table::GetBooleanv, + * otherwise gets the specified parameter from the current context, converting + * it value into GLboolean. + */ void _mesa_GetBooleanv( GLenum pname, GLboolean *params ) { @@ -1619,6 +1636,18 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params ) } +/** + * Get the value(s) of a selected parameter. + * + * \param pname parameter to be returned. + * \param params will hold the value(s) of the speficifed parameter. + * + * \sa glGetDoublev(). + * + * Tries to get the specified parameter via dd_function_table::GetDoublev, + * otherwise gets the specified parameter from the current context, converting + * it value into GLdouble. + */ void _mesa_GetDoublev( GLenum pname, GLdouble *params ) { @@ -3125,6 +3154,18 @@ _mesa_GetDoublev( GLenum pname, GLdouble *params ) } +/** + * Get the value(s) of a selected parameter. + * + * \param pname parameter to be returned. + * \param params will hold the value(s) of the speficifed parameter. + * + * \sa glGetFloatv(). + * + * Tries to get the specified parameter via dd_function_table::GetFloatv, + * otherwise gets the specified parameter from the current context, converting + * it value into GLfloat. + */ void _mesa_GetFloatv( GLenum pname, GLfloat *params ) { @@ -4607,6 +4648,18 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params ) } +/** + * Get the value(s) of a selected parameter. + * + * \param pname parameter to be returned. + * \param params will hold the value(s) of the speficifed parameter. + * + * \sa glGetIntegerv(). + * + * Tries to get the specified parameter via dd_function_table::GetIntegerv, + * otherwise gets the specified parameter from the current context, converting + * it value into GLinteger. + */ void _mesa_GetIntegerv( GLenum pname, GLint *params ) { @@ -6127,7 +6180,17 @@ _mesa_GetIntegerv( GLenum pname, GLint *params ) } - +/** + * Get the address of a selected pointer. + * + * \param pname array or buffer to be returned. + * \param params will hold the pointer speficifed by \p pname. + * + * \sa glGetPointerv(). + * + * Tries to get the specified pointer via dd_function_table::GetPointerv, + * otherwise gets the specified pointer from the current context. + */ void _mesa_GetPointerv( GLenum pname, GLvoid **params ) { @@ -6183,7 +6246,16 @@ _mesa_GetPointerv( GLenum pname, GLvoid **params ) } - +/** + * Get a string describing the current GL connection. + * + * \param name name symbolic constant. + * + * \sa glGetString(). + * + * Tries to get the string from dd_function_table::GetString, otherwise returns + * the hardcoded strings. + */ const GLubyte * _mesa_GetString( GLenum name ) { @@ -6261,8 +6333,12 @@ _mesa_GetString( GLenum name ) } -/* - * Execute a glGetError command +/** + * Execute a glGetError() command. + * + * \return error number. + * + * Returns __GLcontextRec::ErrorValue. */ GLenum _mesa_GetError( void ) diff --git a/src/mesa/main/get.h b/src/mesa/main/get.h index eaddb746f9a..5c7a81e1511 100644 --- a/src/mesa/main/get.h +++ b/src/mesa/main/get.h @@ -1,3 +1,7 @@ +/** + * \file get.h + * State query functions. + */ /* * Mesa 3-D graphics library @@ -52,6 +56,4 @@ _mesa_GetString( GLenum name ); extern GLenum _mesa_GetError( void ); - - #endif diff --git a/src/mesa/main/glheader.h b/src/mesa/main/glheader.h index 52950b35565..ef4c9f0a125 100644 --- a/src/mesa/main/glheader.h +++ b/src/mesa/main/glheader.h @@ -1,3 +1,22 @@ +/** + * \file glheader.h + * Top-most include file. + * + * This is the top-most include file of the Mesa sources. + * It includes gl.h and all system headers which are needed. + * Other Mesa source files should \e not directly include any system + * headers. This allows Mesa to be integrated into XFree86 and + * allows system-dependent hacks/workarounds to be collected in one place. + * + * \note Actually, a lot of system-dependent stuff is now in imports.[ch]. + * + * If you touch this file, everything gets recompiled! + * + * This file should be included before any other header in the .c files. + * + * Put compiler/OS/assembly pragmas and macros here to avoid + * cluttering other source files. + */ /* * Mesa 3-D graphics library @@ -28,22 +47,6 @@ #define GLHEADER_H -/* - * This is the top-most include file of the Mesa sources. - * It includes gl.h and all system headers which are needed. - * Other Mesa source files should _not_ directly include any system - * headers. This allows Mesa to be integrated into XFree86 and - * allows system-dependent hacks/work-arounds to be collected in one place. - * XXX actually, a lot of system-dependent stuff is now in imports.[ch]. - * - * If you touch this file, everything gets recompiled! - * - * Put compiler/OS/assembly pragmas and macros here to avoid - * cluttering other source files. - */ - - - #if defined(XFree86LOADER) && defined(IN_MODULE) #include "xf86_ansic.h" #else @@ -122,7 +125,7 @@ # define GLWINAPIV #endif /* WIN32 / CYGWIN bracket */ -/* compatability guard so we don't need to change client code */ +/* compatibility guard so we don't need to change client code */ #if defined(_WIN32) && !defined(_WINDEF_) && !defined(_GNU_H_WINDOWS32_BASE) && !defined(OPENSTEP) && !defined(__CYGWIN__) #if 0 @@ -280,9 +283,9 @@ typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESC #endif -/* +/** * Sometimes we treat GLfloats as GLints. On x86 systems, moving a float - * as a int (thereby using integer registers instead of fp registers) is + * as a int (thereby using integer registers instead of FP registers) is * a performance win. Typically, this can be done with ordinary casts. * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0) * these casts generate warnings. @@ -291,4 +294,6 @@ typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESC typedef union { GLfloat f; GLint i; } fi_type; +#include "config.h" + #endif /* GLHEADER_H */ diff --git a/src/mesa/main/hash.c b/src/mesa/main/hash.c index 32e37a268d2..78be122aab5 100644 --- a/src/mesa/main/hash.c +++ b/src/mesa/main/hash.c @@ -1,3 +1,14 @@ +/** + * \file hash.c + * Generic hash table. + * + * Used for display lists and texture objects. The hash functions are + * thread-safe. + * + * \note key=0 is illegal. + * + * \author Brian Paul + */ /* * Mesa 3-D graphics library @@ -23,6 +34,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "imports.h" #include "glthread.h" @@ -30,19 +42,12 @@ #include "context.h" -/** - * \file hash.c - * \brief Generic hash table. Used for display lists and texture objects. - * The hash functions are thread-safe. - * \author Brian Paul - * \note key=0 is illegal - */ - - #define TABLE_SIZE 1023 /**< Size of lookup table/array */ /** - * An entry in the hash table. This struct is private to this file. + * An entry in the hash table. + * + * This struct is private to this file. */ struct HashEntry { GLuint Key; /**< the entry's key */ @@ -51,8 +56,9 @@ struct HashEntry { }; /** - * The hashtable data structure. This is an opaque types (it's not - * defined in the .h file). + * The hash table data structure. + * + * This is an opaque types (it's not defined in hash.h file). */ struct _mesa_HashTable { struct HashEntry *Table[TABLE_SIZE]; /**< the lookup table */ @@ -64,6 +70,7 @@ struct _mesa_HashTable { /** * Create a new hash table. + * * \return pointer to a new, empty hash table. */ struct _mesa_HashTable *_mesa_NewHashTable(void) @@ -79,7 +86,10 @@ struct _mesa_HashTable *_mesa_NewHashTable(void) /** * Delete a hash table. - * \param table - the hash table to delete + * + * \param table the hash table to delete. + * + * Frees each entry on the hash table and then the hash table structure itself. */ void _mesa_DeleteHashTable(struct _mesa_HashTable *table) { @@ -101,9 +111,13 @@ void _mesa_DeleteHashTable(struct _mesa_HashTable *table) /** * Lookup an entry in the hash table. - * \param table - the hash table - * \param key - the key + * + * \param table the hash table. + * \param key the key. + * * \return pointer to user's data or NULL if key not in table + * + * Walks through the hash entry until finding the matching key. */ void *_mesa_HashLookup(const struct _mesa_HashTable *table, GLuint key) { @@ -127,11 +141,16 @@ void *_mesa_HashLookup(const struct _mesa_HashTable *table, GLuint key) /** - * Insert into the hash table. If an entry with this key already exists - * we'll replace the existing entry. - * \param table - the hash table - * \param key - the key (not zero) - * \param data - pointer to user data + * Insert into the hash table. + * + * If an entry with this key already exists we'll replace the existing entry. + * + * \param table the hash table. + * \param key the key (not zero). + * \param data pointer to user data. + * + * While holding the hash table's lock, walk through the hash entry list replacing the data if a + * matching key is found, or inserts a new table entry otherwise. */ void _mesa_HashInsert(struct _mesa_HashTable *table, GLuint key, void *data) { @@ -173,8 +192,12 @@ void _mesa_HashInsert(struct _mesa_HashTable *table, GLuint key, void *data) /** * Remove an entry from the hash table. - * \param table - the hash table - * \param key - key of entry to remove + * + * \param table the hash table. + * \param key key of entry to remove. + * + * While holding the hash table's lock, searches the entry with the matching + * key and unlinks it. */ void _mesa_HashRemove(struct _mesa_HashTable *table, GLuint key) { @@ -213,10 +236,16 @@ void _mesa_HashRemove(struct _mesa_HashTable *table, GLuint key) /** * Get the key of the "first" entry in the hash table. + * * This is used in the course of deleting all display lists when * a context is destroyed. - * \param table - the hash table + * + * \param table the hash table + * * \return key for the "first" entry in the hash table. + * + * While holding the lock, walks through all table positions until finding + * the first entry of the first non-empty one. */ GLuint _mesa_HashFirstEntry(struct _mesa_HashTable *table) { @@ -237,7 +266,8 @@ GLuint _mesa_HashFirstEntry(struct _mesa_HashTable *table) /** * Dump contents of hash table for debugging. - * \param table - the hash table + * + * \param table the hash table. */ void _mesa_HashPrint(const struct _mesa_HashTable *table) { @@ -255,10 +285,17 @@ void _mesa_HashPrint(const struct _mesa_HashTable *table) /** - * Find a block of 'numKeys' adjacent unused hash keys. - * \param table - the hash table - * \param numKeys - number of keys needed - * \return Starting key of free block or 0 if failure + * Find a block of adjacent unused hash keys. + * + * \param table the hash table. + * \param numKeys number of keys needed. + * + * \return Starting key of free block or 0 if failure. + * + * If there are enough free keys between the maximum key existing in the table + * (_mesa_HashTable::MaxKey) and the maximum key possible, then simply return + * the adjacent key. Otherwise do a full search for a free key block in the + * allowable key range. */ GLuint _mesa_HashFindFreeKeyBlock(struct _mesa_HashTable *table, GLuint numKeys) { diff --git a/src/mesa/main/hash.h b/src/mesa/main/hash.h index 07bdef46c18..359ba512742 100644 --- a/src/mesa/main/hash.h +++ b/src/mesa/main/hash.h @@ -1,3 +1,7 @@ +/** + * \file hash.h + * Generic hash table. + */ /* * Mesa 3-D graphics library diff --git a/src/mesa/main/hint.c b/src/mesa/main/hint.c index 90ccc8bf6f1..5af819194ad 100644 --- a/src/mesa/main/hint.c +++ b/src/mesa/main/hint.c @@ -120,3 +120,21 @@ _mesa_Hint( GLenum target, GLenum mode ) (*ctx->Driver.Hint)( ctx, target, mode ); } } + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_hint( GLcontext * ctx ) +{ + /* Hint group */ + ctx->Hint.PerspectiveCorrection = GL_DONT_CARE; + ctx->Hint.PointSmooth = GL_DONT_CARE; + ctx->Hint.LineSmooth = GL_DONT_CARE; + ctx->Hint.PolygonSmooth = GL_DONT_CARE; + ctx->Hint.Fog = GL_DONT_CARE; + ctx->Hint.ClipVolumeClipping = GL_DONT_CARE; + ctx->Hint.TextureCompression = GL_DONT_CARE; + ctx->Hint.GenerateMipmap = GL_DONT_CARE; +} diff --git a/src/mesa/main/hint.h b/src/mesa/main/hint.h index f33be7b54df..57f3823fcfb 100644 --- a/src/mesa/main/hint.h +++ b/src/mesa/main/hint.h @@ -1,3 +1,12 @@ +/** + * \file hint.h + * Hints operations. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -30,9 +39,19 @@ #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_Hint( GLenum target, GLenum mode ); +extern void +_mesa_init_hint( GLcontext * ctx ); + +#else + +/** No-op */ +#define _mesa_init_hint( c ) ((void) 0) + +#endif #endif diff --git a/src/mesa/main/histogram.c b/src/mesa/main/histogram.c index 63b147b0053..ea2c465e433 100644 --- a/src/mesa/main/histogram.c +++ b/src/mesa/main/histogram.c @@ -1099,3 +1099,38 @@ _mesa_ResetMinmax(GLenum target) ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; ctx->NewState |= _NEW_PIXEL; } + + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_histogram( GLcontext * ctx ) +{ + int i; + + /* Histogram group */ + ctx->Histogram.Width = 0; + ctx->Histogram.Format = GL_RGBA; + ctx->Histogram.Sink = GL_FALSE; + ctx->Histogram.RedSize = 0; + ctx->Histogram.GreenSize = 0; + ctx->Histogram.BlueSize = 0; + ctx->Histogram.AlphaSize = 0; + ctx->Histogram.LuminanceSize = 0; + for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { + ctx->Histogram.Count[i][0] = 0; + ctx->Histogram.Count[i][1] = 0; + ctx->Histogram.Count[i][2] = 0; + ctx->Histogram.Count[i][3] = 0; + } + + /* Min/Max group */ + ctx->MinMax.Format = GL_RGBA; + ctx->MinMax.Sink = GL_FALSE; + ctx->MinMax.Min[RCOMP] = 1000; ctx->MinMax.Max[RCOMP] = -1000; + ctx->MinMax.Min[GCOMP] = 1000; ctx->MinMax.Max[GCOMP] = -1000; + ctx->MinMax.Min[BCOMP] = 1000; ctx->MinMax.Max[BCOMP] = -1000; + ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; +} diff --git a/src/mesa/main/histogram.h b/src/mesa/main/histogram.h index ece6f11ed2d..548e0ba3839 100644 --- a/src/mesa/main/histogram.h +++ b/src/mesa/main/histogram.h @@ -1,3 +1,12 @@ +/** + * \file histogram.h + * Histogram. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -30,6 +39,7 @@ #include "glheader.h" #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_update_minmax(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]); @@ -58,4 +68,19 @@ extern void _mesa_ResetHistogram(GLenum target); extern void _mesa_ResetMinmax(GLenum target); +extern void +_mesa_update_minmax(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]); + +extern void +_mesa_update_histogram(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]); + +extern void _mesa_init_histogram( GLcontext * ctx ); + +#else + +/** No-op */ +#define _mesa_init_histogram( c ) ((void) 0) + +#endif + #endif diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index 34bcf37d158..171efb5b249 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -1,3 +1,7 @@ +/** + * \file image.c + * Image handling. + */ /* * Mesa 3-D graphics library @@ -23,6 +27,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "colormac.h" #include "context.h" @@ -34,18 +39,16 @@ #include "mtypes.h" - -/* Compute ceiling of integer quotient of A divided by B: */ +/** Compute ceiling of integer quotient of A divided by B. */ #define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 ) - -/* - * These are the image packing parameters for Mesa's internal images. - * That is, _mesa_unpack_image() returns image data in this format. - * When we execute image commands (glDrawPixels, glTexImage, etc) - * from within display lists we have to be sure to set the current - * unpacking params to these values! +/** + * Image packing parameters for Mesa's internal images. + * + * _mesa_unpack_image() returns image data in this format. When we execute + * image commands (glDrawPixels(), glTexImage(), etc) from within display lists + * we have to be sure to set the current unpacking parameters to these values! */ const struct gl_pixelstore_attrib _mesa_native_packing = { 1, /* Alignment */ @@ -61,14 +64,18 @@ const struct gl_pixelstore_attrib _mesa_native_packing = { }; - -/* +/** * Flip the 8 bits in each byte of the given array. * - * XXX try this trick to flip bytes someday: + * \param p array. + * \param n number of bytes. + * + * \todo try this trick to flip bytes someday: + * \code * v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555); * v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333); * v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f); + * \endcode */ static void flip_bytes( GLubyte *p, GLuint n ) @@ -90,8 +97,11 @@ flip_bytes( GLubyte *p, GLuint n ) } -/* +/** * Flip the order of the 2 bytes in each word in the given array. + * + * \param p array. + * \param n number of words. */ void _mesa_swap2( GLushort *p, GLuint n ) @@ -124,12 +134,13 @@ _mesa_swap4( GLuint *p, GLuint n ) } - - -/* - * Return the size, in bytes, of the given GL datatype. - * Return 0 if GL_BITMAP. - * Return -1 if invalid type enum. +/** + * Get the size of a GL data type. + * + * \param type GL data type. + * + * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1 + * if an invalid type enum. */ GLint _mesa_sizeof_type( GLenum type ) { @@ -156,9 +167,9 @@ GLint _mesa_sizeof_type( GLenum type ) } -/* - * Same as _mesa_sizeof_packed_type() but we also accept the - * packed pixel format datatypes. +/** + * Same as _mesa_sizeof_type() but also accepting the packed pixel + * format data types. */ GLint _mesa_sizeof_packed_type( GLenum type ) { @@ -212,10 +223,12 @@ GLint _mesa_sizeof_packed_type( GLenum type ) } - -/* - * Return the number of components in a GL enum pixel type. - * Return -1 if bad format. +/** + * Get the number of components in a pixel format. + * + * \param format pixel format. + * + * \return the number of components in the given format, or -1 if a bad format. */ GLint _mesa_components_in_format( GLenum format ) { @@ -256,9 +269,13 @@ GLint _mesa_components_in_format( GLenum format ) } -/* - * Return bytes per pixel for given format and type - * Return -1 if bad format or type. +/** + * Get the bytes per pixel of pixel format type pair. + * + * \param format pixel format. + * \param type pixel type. + * + * \return bytes per pixel, or -1 if a bad format or type was given. */ GLint _mesa_bytes_per_pixel( GLenum format, GLenum type ) { @@ -320,9 +337,14 @@ GLint _mesa_bytes_per_pixel( GLenum format, GLenum type ) } -/* - * Test if the given pixel format and type are legal. - * Return GL_TRUE for legal, GL_FALSE for illegal. +/** + * Test for a legal pixel format and type. + * + * \param format pixel format. + * \param type pixel type. + * + * \return GL_TRUE if the given pixel format and type are legal, or GL_FALSE + * otherwise. */ GLboolean _mesa_is_legal_format_and_type( GLenum format, GLenum type ) @@ -417,18 +439,27 @@ _mesa_is_legal_format_and_type( GLenum format, GLenum type ) } - -/* - * Return the address of a pixel in an image (actually a volume). - * Pixel unpacking/packing parameters are observed according to 'packing'. - * Input: image - start of image data - * width, height - size of image - * format - image format - * type - pixel component type - * packing - the pixelstore attributes - * img - which image in the volume (0 for 1D or 2D images) - * row, column - location of pixel in the image - * Return: address of pixel at (image,row,column) in image or NULL if error. +/** + * Get the address of a pixel in an image (actually a volume). + * + * Pixel unpacking/packing parameters are observed according to \p packing. + * + * \param image start of image data. + * \param width image width. + * \param height image height. + * \param format pixel format. + * \param type pixel data type. + * \param packing the pixelstore attributes + * \param img which image in the volume (0 for 1D or 2D images) + * \param row of pixel in the image + * \param column of pixel in the image + * + * \return address of pixel on success, or NULL on error. + * + * According to the \p packing information calculates the number of pixel/bytes + * per row/image and refers it. + * + * \sa gl_pixelstore_attrib. */ GLvoid * _mesa_image_address( const struct gl_pixelstore_attrib *packing, @@ -530,10 +561,19 @@ _mesa_image_address( const struct gl_pixelstore_attrib *packing, } - -/* - * Compute the stride between image rows (in bytes) for the given - * pixel packing parameters and image width, format and type. +/** + * Compute the stride between image rows. + * + * \param packing the pixelstore attributes + * \param width image width. + * \param format pixel format. + * \param type pixel data type. + * + * \return the stride in bytes for the given parameters. + * + * Computes the number of bytes per pixel and row and compensates for alignment. + * + * \sa gl_pixelstore_attrib. */ GLint _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing, @@ -577,6 +617,7 @@ _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing, } +#if _HAVE_FULL_GL /* * Compute the stride between images in a 3D texture (in bytes) for the given @@ -616,8 +657,6 @@ _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing, } - - /* * Unpack a 32x32 pixel polygon stipple from user memory using the * current pixel unpack settings. @@ -645,7 +684,6 @@ _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32], } - /* * Pack polygon stipple into user memory given current pixel packing * settings. @@ -863,7 +901,6 @@ _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source, } - /* * Used to pack an array [][4] of RGBA GLchan colors as specified * by the dstFormat, dstType and dstPacking. Used by glReadPixels, @@ -942,11 +979,11 @@ _mesa_pack_float_rgba_span( GLcontext *ctx, } /* update histogram count */ if (transferOps & IMAGE_HISTOGRAM_BIT) { - _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); +/* _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); */ } /* min/max here */ if (transferOps & IMAGE_MIN_MAX_BIT) { - _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); +/* _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); */ if (ctx->MinMax.Sink) { UNDEFARRAY(rgbaCopy); /* mac 32k limitation */ return; @@ -1779,18 +1816,17 @@ _mesa_pack_float_rgba_span( GLcontext *ctx, } - /* * Pack the given RGBA span into client memory at 'dest' address * in the given pixel format and type. * Optionally apply the enabled pixel transfer ops. * Pack into memory using the given packing params struct. * This is used by glReadPixels and glGetTexImage?D() - * Input: ctx - the context + * \param ctx - the context * n - number of pixels in the span * rgba - the pixels * format - dest packing format - * type - dest packing datatype + * type - dest packing data type * destination - destination packing address * packing - pixel packing parameters * transferOps - bitmask of IMAGE_*_BIT operations to apply @@ -2033,7 +2069,6 @@ extract_uint_indexes(GLuint n, GLuint indexes[], } - /* * This function extracts floating point RGBA values from arbitrary * image data. srcFormat and srcType are the format and type parameters @@ -2046,7 +2081,7 @@ extract_uint_indexes(GLuint n, GLuint indexes[], * Args: n - number of pixels * rgba - output colors * srcFormat - format of incoming data - * srcType - datatype of incoming data + * srcType - data type of incoming data * src - source data pointer * swapBytes - perform byteswapping of incoming data? */ @@ -2537,18 +2572,17 @@ extract_float_rgba(GLuint n, GLfloat rgba[][4], } - /* * Unpack a row of color image data from a client buffer according to * the pixel unpacking parameters. * Return GLubyte values in the specified dest image format. * This is (or will be) used by glDrawPixels and glTexImage?D(). - * Input: ctx - the context + * \param ctx - the context * n - number of pixels in the span * dstFormat - format of destination color array * dest - the destination color array * srcFormat - source image format - * srcType - source image datatype + * srcType - source image data type * source - source image pointer * srcPacking - pixel unpacking parameters * transferOps - bitmask of IMAGE_*_BIT values of operations to apply @@ -2818,11 +2852,11 @@ _mesa_unpack_chan_color_span( GLcontext *ctx, } /* update histogram count */ if (transferOps & IMAGE_HISTOGRAM_BIT) { - _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); +/* _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); */ } /* min/max here */ if (transferOps & IMAGE_MIN_MAX_BIT) { - _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); +/* _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); */ } } @@ -3095,11 +3129,11 @@ _mesa_unpack_float_color_span( GLcontext *ctx, } /* update histogram count */ if (transferOps & IMAGE_HISTOGRAM_BIT) { - _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); +/* _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); */ } /* min/max here */ if (transferOps & IMAGE_MIN_MAX_BIT) { - _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); +/* _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); */ } } @@ -3223,8 +3257,6 @@ _mesa_unpack_float_color_span( GLcontext *ctx, } - - /* * Unpack a row of color index data from a client buffer according to * the pixel unpacking parameters. @@ -3232,7 +3264,7 @@ _mesa_unpack_float_color_span( GLcontext *ctx, * * Args: ctx - the context * n - number of pixels - * dstType - destination datatype + * dstType - destination data type * dest - destination array * srcType - source pixel type * source - source data pointer @@ -3431,7 +3463,6 @@ _mesa_pack_index_span( const GLcontext *ctx, GLuint n, } - /* * Unpack a row of stencil data from a client buffer according to * the pixel unpacking parameters. @@ -3439,7 +3470,7 @@ _mesa_pack_index_span( const GLcontext *ctx, GLuint n, * * Args: ctx - the context * n - number of pixels - * dstType - destination datatype + * dstType - destination data type * dest - destination array * srcType - source pixel type * source - source data pointer @@ -3684,7 +3715,6 @@ _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n, } - void _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, GLenum srcType, const GLvoid *source, @@ -3765,7 +3795,6 @@ _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest, } - /* * Pack an array of depth values. The values are floats in [0,1]. */ @@ -3875,8 +3904,6 @@ _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest, } - - /* * Unpack image data. Apply byteswapping, byte flipping (bitmap). * Return all image data in a contiguous block. @@ -3945,3 +3972,5 @@ _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth, return destBuffer; } } + +#endif diff --git a/src/mesa/main/image.h b/src/mesa/main/image.h index 39260f0b4f1..6c8b342ba51 100644 --- a/src/mesa/main/image.h +++ b/src/mesa/main/image.h @@ -1,3 +1,7 @@ +/** + * \file image.h + * Image handling. + */ /* * Mesa 3-D graphics library diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c index a1c974ca755..7597979e4a7 100644 --- a/src/mesa/main/imports.c +++ b/src/mesa/main/imports.c @@ -1,3 +1,35 @@ +/** + * \file imports.c + * Standard C library function wrappers. + * + * Imports are services which the device driver or window system or + * operating system provides to the core renderer. The core renderer (Mesa) + * will call these functions in order to do memory allocation, simple I/O, + * etc. + * + * Some drivers will want to override/replace this file with something + * specialized, but that'll be rare. + * + * Eventually, I want to move roll the glheader.h file into this. + * + * The OpenGL SI's __GLimports structure allows per-context specification of + * replacements for the standard C lib functions. In practice that's probably + * never needed; compile-time replacements are far more likely. + * + * The _mesa_*() functions defined here don't in general take a context + * parameter. I guess we can change that someday, if need be. + * So for now, the __GLimports stuff really isn't used. + * + * \todo Functions still needed: + * - scanf + * - qsort + * - bsearch + * - rand and RAND_MAX + * + * \note When compiled into a XFree86 module these functions wrap around + * XFree86 own wrappers. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,26 +55,6 @@ */ -/* - * Imports are services which the device driver or window system or - * operating system provides to the core renderer. The core renderer (Mesa) - * will call these functions in order to do memory allocation, simple I/O, - * etc. - * - * Some drivers will want to override/replace this file with something - * specialized, but that'll be rare. - * - * Eventually, I want to move roll the glheader.h file into this. - * - * The OpenGL SI's __GLimports structure allows per-context specification of - * replacements for the standard C lib functions. In practice that's probably - * never needed; compile-time replacements are far more likely. - * - * The _mesa_foo() functions defined here don't in general take a context - * parameter. I guess we can change that someday, if need be. - * So for now, the __GLimports stuff really isn't used. - */ - #include "imports.h" #include "context.h" @@ -58,22 +70,10 @@ extern int vsnprintf(char *str, size_t count, const char *fmt, va_list arg); /**********************************************************************/ -/* Wrappers for standard C library functions */ -/**********************************************************************/ - -/* - * Functions still needed: - * scanf - * qsort - * bsearch - * rand and RAND_MAX - */ - - -/********************************************************************** - * Memory - */ +/** \name Memory */ +/*@{*/ +/** Wrapper around either malloc() or xf86malloc() */ void * _mesa_malloc(size_t bytes) { @@ -84,7 +84,7 @@ _mesa_malloc(size_t bytes) #endif } - +/** Wrapper around either calloc() or xf86calloc() */ void * _mesa_calloc(size_t bytes) { @@ -95,7 +95,7 @@ _mesa_calloc(size_t bytes) #endif } - +/** Wrapper around either free() or xf86free() */ void _mesa_free(void *ptr) { @@ -106,7 +106,17 @@ _mesa_free(void *ptr) #endif } - +/** + * Allocate aligned memory. + * + * \param bytes number of bytes to allocate. + * \param alignment alignment (must be greater than zero). + * + * Allocates extra memory to accommodate rounding up the address for + * alignment and to record the real malloc address. + * + * \sa _mesa_align_free(). + */ void * _mesa_align_malloc(size_t bytes, unsigned long alignment) { @@ -114,9 +124,6 @@ _mesa_align_malloc(size_t bytes, unsigned long alignment) ASSERT( alignment > 0 ); - /* Allocate extra memory to accomodate rounding up the address for - * alignment and to record the real malloc address. - */ ptr = (unsigned long) _mesa_malloc(bytes + alignment + sizeof(void *)); if (!ptr) return NULL; @@ -135,7 +142,8 @@ _mesa_align_malloc(size_t bytes, unsigned long alignment) return (void *) buf; } - +/** Same as _mesa_align_malloc(), but using _mesa_calloc() instead of + * _mesa_malloc() */ void * _mesa_align_calloc(size_t bytes, unsigned long alignment) { @@ -161,23 +169,27 @@ _mesa_align_calloc(size_t bytes, unsigned long alignment) return (void *)buf; } - +/** + * Free memory allocated with _mesa_align_malloc() or _mesa_align_calloc(). + * + * \param ptr pointer to the memory to be freed. + * + * The actual address to free is stored in the word immediately before the + * address the client sees. + */ void _mesa_align_free(void *ptr) { #if 0 _mesa_free( (void *)(*(unsigned long *)((unsigned long)ptr - sizeof(void *))) ); #else - /* The actuall address to free is stuffed in the word immediately - * before the address the client sees. - */ void **cubbyHole = (void **) ((char *) ptr - sizeof(void *)); void *realAddr = *cubbyHole; _mesa_free(realAddr); #endif } - +/** Wrapper around either memcpy() or xf86memcpy() */ void * _mesa_realloc(void *oldBuffer, size_t oldSize, size_t newSize) { @@ -203,7 +215,7 @@ _mesa_memcpy(void *dest, const void *src, size_t n) #endif } - +/** Wrapper around either memset() or xf86memset() */ void _mesa_memset( void *dst, int val, size_t n ) { @@ -216,7 +228,12 @@ _mesa_memset( void *dst, int val, size_t n ) #endif } - +/** Fill memory with a constant 16bit word. + * + * \param dst destination pointer. + * \param val value. + * \param n number of words. + */ void _mesa_memset16( unsigned short *dst, unsigned short val, size_t n ) { @@ -224,7 +241,7 @@ _mesa_memset16( unsigned short *dst, unsigned short val, size_t n ) *dst++ = val; } - +/** Wrapper around either memcpy() or xf86memcpy() or bzero() */ void _mesa_bzero( void *dst, size_t n ) { @@ -237,11 +254,14 @@ _mesa_bzero( void *dst, size_t n ) #endif } +/*@}*/ -/********************************************************************** - * Math - */ +/**********************************************************************/ +/** \name Math */ +/*@{*/ + +/** Wrapper around either sin() or xf86sin() */ double _mesa_sin(double a) { @@ -252,7 +272,7 @@ _mesa_sin(double a) #endif } - +/** Wrapper around either cos() or xf86cos() */ double _mesa_cos(double a) { @@ -263,7 +283,7 @@ _mesa_cos(double a) #endif } - +/** Wrapper around either sqrt() or xf86sqrt() */ double _mesa_sqrtd(double x) { @@ -474,6 +494,7 @@ _mesa_inv_sqrtf(float n) } +/** Wrapper around either pow() or xf86pow() */ double _mesa_pow(double x, double y) { @@ -498,12 +519,14 @@ _mesa_bitcount(unsigned int n) return bits; } +/*@}*/ -/********************************************************************** - * Environment vars - */ +/**********************************************************************/ +/** \name Environment vars */ +/*@{*/ +/** Wrapper around either () or xf86() */ char * _mesa_getenv( const char *var ) { @@ -514,11 +537,14 @@ _mesa_getenv( const char *var ) #endif } +/*@}*/ -/********************************************************************** - * String - */ +/**********************************************************************/ +/** \name String */ +/*@{*/ + +/** Wrapper around either strstr() or xf86strstr() */ char * _mesa_strstr( const char *haystack, const char *needle ) { @@ -529,7 +555,7 @@ _mesa_strstr( const char *haystack, const char *needle ) #endif } - +/** Wrapper around either strncat() or xf86strncat() */ char * _mesa_strncat( char *dest, const char *src, size_t n ) { @@ -540,7 +566,7 @@ _mesa_strncat( char *dest, const char *src, size_t n ) #endif } - +/** Wrapper around either strcpy() or xf86strcpy() */ char * _mesa_strcpy( char *dest, const char *src ) { @@ -551,7 +577,7 @@ _mesa_strcpy( char *dest, const char *src ) #endif } - +/** Wrapper around either strncpy() or xf86strncpy() */ char * _mesa_strncpy( char *dest, const char *src, size_t n ) { @@ -562,7 +588,7 @@ _mesa_strncpy( char *dest, const char *src, size_t n ) #endif } - +/** Wrapper around either strlen() or xf86strlen() */ size_t _mesa_strlen( const char *s ) { @@ -573,7 +599,7 @@ _mesa_strlen( const char *s ) #endif } - +/** Wrapper around either strcmp() or xf86strcmp() */ int _mesa_strcmp( const char *s1, const char *s2 ) { @@ -584,7 +610,7 @@ _mesa_strcmp( const char *s1, const char *s2 ) #endif } - +/** Wrapper around either strncmp() or xf86strncmp() */ int _mesa_strncmp( const char *s1, const char *s2, size_t n ) { @@ -595,7 +621,7 @@ _mesa_strncmp( const char *s1, const char *s2, size_t n ) #endif } - +/** Implemented using _mesa_malloc() and _mesa_strcpy */ char * _mesa_strdup( const char *s ) { @@ -606,7 +632,7 @@ _mesa_strdup( const char *s ) return s2; } - +/** Wrapper around either atoi() or xf86atoi() */ int _mesa_atoi(const char *s) { @@ -617,7 +643,7 @@ _mesa_atoi(const char *s) #endif } - +/** Wrapper around either strtod() or xf86strtod() */ double _mesa_strtod( const char *s, char **end ) { @@ -628,11 +654,14 @@ _mesa_strtod( const char *s, char **end ) #endif } +/*@}*/ -/********************************************************************** - * I/O - */ +/**********************************************************************/ +/** \name I/O */ +/*@{*/ + +/** Wrapper around either vsprintf() or xf86vsprintf() */ int _mesa_sprintf( char *str, const char *fmt, ... ) { @@ -648,7 +677,8 @@ _mesa_sprintf( char *str, const char *fmt, ... ) return r; } - +/** Wrapper around either printf() or xf86printf(), using vsprintf() for + * the formatting. */ void _mesa_printf( const char *fmtString, ... ) { @@ -664,11 +694,23 @@ _mesa_printf( const char *fmtString, ... ) #endif } +/*@}*/ -/********************************************************************** - * Diagnostics - */ +/**********************************************************************/ +/** \name Diagnostics */ +/*@{*/ + +/** + * Display a warning. + * + * \param ctx GL context. + * \param fmtString printf() alike format string. + * + * If debugging is enabled (either at compile-time via the DEBUG macro, or + * run-time via the MESA_DEBUG environment variable), prints the warning to + * stderr, either via fprintf() or xf86printf(). + */ void _mesa_warning( GLcontext *ctx, const char *fmtString, ... ) { @@ -693,10 +735,14 @@ _mesa_warning( GLcontext *ctx, const char *fmtString, ... ) } } - -/* +/** * This function is called when the Mesa user has stumbled into a code * path which may not be implemented fully or correctly. + * + * \param ctx GL context. + * \param s problem description string. + * + * Prints the message to stderr, either via fprintf() or xf86fprintf(). */ void _mesa_problem( const GLcontext *ctx, const char *fmtString, ... ) @@ -718,13 +764,19 @@ _mesa_problem( const GLcontext *ctx, const char *fmtString, ... ) #endif } - -/* - * If in debug mode, print error message to stdout. +/** + * Display an error message. + * + * If in debug mode, print error message. * Also, record the error code by calling _mesa_record_error(). - * Input: ctx - the GL context - * error - the error value - * fmtString - printf-style format string, followed by optional args + * + * \param ctx the GL context. + * \param error the error value. + * \param fmtString printf() style format string, followed by optional args + * + * If debugging is enabled (either at compile-time via the DEBUG macro, or + * run-time via the MESA_DEBUG environment variable), interperts the error code and + * prints the error message via _mesa_debug(). */ void _mesa_error( GLcontext *ctx, GLenum error, const char *fmtString, ... ) @@ -790,9 +842,13 @@ _mesa_error( GLcontext *ctx, GLenum error, const char *fmtString, ... ) _mesa_record_error(ctx, error); } - -/* - * Call this to report debug information. Uses stderr. +/** + * Report debug information. + * + * \param ctx GL context. + * \param fmtString printf() alike format string. + * + * Prints the message to stderr, either via fprintf() or xf86printf(). */ void _mesa_debug( const GLcontext *ctx, const char *fmtString, ... ) @@ -809,12 +865,14 @@ _mesa_debug( const GLcontext *ctx, const char *fmtString, ... ) #endif } +/*@}*/ /**********************************************************************/ -/* Default Imports Wrapper */ -/**********************************************************************/ +/** \name Default Imports Wrapper */ +/*@{*/ +/** Wrapper around _mesa_malloc() */ static void * default_malloc(__GLcontext *gc, size_t size) { @@ -822,6 +880,7 @@ default_malloc(__GLcontext *gc, size_t size) return _mesa_malloc(size); } +/** Wrapper around _mesa_malloc() */ static void * default_calloc(__GLcontext *gc, size_t numElem, size_t elemSize) { @@ -829,6 +888,7 @@ default_calloc(__GLcontext *gc, size_t numElem, size_t elemSize) return _mesa_calloc(numElem * elemSize); } +/** Wrapper around either realloc() or xf86realloc() */ static void * default_realloc(__GLcontext *gc, void *oldAddr, size_t newSize) { @@ -840,6 +900,7 @@ default_realloc(__GLcontext *gc, void *oldAddr, size_t newSize) #endif } +/** Wrapper around _mesa_free() */ static void default_free(__GLcontext *gc, void *addr) { @@ -847,6 +908,7 @@ default_free(__GLcontext *gc, void *addr) _mesa_free(addr); } +/** Wrapper around _mesa_getenv() */ static char * CAPI default_getenv( __GLcontext *gc, const char *var ) { @@ -854,12 +916,14 @@ default_getenv( __GLcontext *gc, const char *var ) return _mesa_getenv(var); } +/** Wrapper around _mesa_warning() */ static void default_warning(__GLcontext *gc, char *str) { _mesa_warning(gc, str); } +/** Wrapper around _mesa_problem() */ static void default_fatal(__GLcontext *gc, char *str) { @@ -867,6 +931,7 @@ default_fatal(__GLcontext *gc, char *str) abort(); } +/** Wrapper around atoi() */ static int CAPI default_atoi(__GLcontext *gc, const char *str) { @@ -874,6 +939,7 @@ default_atoi(__GLcontext *gc, const char *str) return atoi(str); } +/** Wrapper around vsprintf() */ static int CAPI default_sprintf(__GLcontext *gc, char *str, const char *fmt, ...) { @@ -885,18 +951,21 @@ default_sprintf(__GLcontext *gc, char *str, const char *fmt, ...) return r; } +/** Wrapper around fopen() */ static void * CAPI default_fopen(__GLcontext *gc, const char *path, const char *mode) { return fopen(path, mode); } +/** Wrapper around fclose() */ static int CAPI default_fclose(__GLcontext *gc, void *stream) { return fclose((FILE *) stream); } +/** Wrapper around vfprintf() */ static int CAPI default_fprintf(__GLcontext *gc, void *stream, const char *fmt, ...) { @@ -908,22 +977,28 @@ default_fprintf(__GLcontext *gc, void *stream, const char *fmt, ...) return r; } -/* XXX this really is driver-specific and can't be here */ +/** + * \todo this really is driver-specific and can't be here + */ static __GLdrawablePrivate * default_GetDrawablePrivate(__GLcontext *gc) { return NULL; } +/*@}*/ - -/* - * Initialize a __GLimports object to point to the functions in - * this file. This is to be called from device drivers. +/** + * Initialize a __GLimports object to point to the functions in this + * file. + * + * This is to be called from device drivers. + * * Also, do some one-time initializations. - * Input: imports - the object to init - * driverCtx - pointer to device driver-specific data + * + * \param imports the object to initialize. + * \param driverCtx pointer to device driver-specific data. */ void _mesa_init_default_imports(__GLimports *imports, void *driverCtx) diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h index 0a72da0f475..47cf2312dfb 100644 --- a/src/mesa/main/imports.h +++ b/src/mesa/main/imports.h @@ -1,3 +1,11 @@ +/** + * \file imports.h + * Standard C library function wrappers. + * + * This file provides wrappers for all the standard C library functions + * like malloc(), free(), printf(), getenv(), etc. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,12 +31,6 @@ */ -/* - * This file provides wrappers for all the standard C library functions - * like malloc, free, printf, getenv, etc. - */ - - #ifndef IMPORTS_H #define IMPORTS_H @@ -43,46 +45,91 @@ extern "C" { #endif -/********************************************************************** - * General macros - */ +/**********************************************************************/ +/** \name General macros */ +/*@{*/ #ifndef NULL #define NULL 0 #endif +/*@}*/ -/********************************************************************** - * Memory macros - */ +/**********************************************************************/ +/** Memory macros */ +/*@{*/ +/** Allocate \p BYTES bytes */ #define MALLOC(BYTES) _mesa_malloc(BYTES) +/** Allocate and zero \p BYTES bytes */ #define CALLOC(BYTES) _mesa_calloc(BYTES) +/** Allocate a structure of type \p T */ #define MALLOC_STRUCT(T) (struct T *) _mesa_malloc(sizeof(struct T)) +/** Allocate and zero a structure of type \p T */ #define CALLOC_STRUCT(T) (struct T *) _mesa_calloc(sizeof(struct T)) +/** Free memory */ #define FREE(PTR) _mesa_free(PTR) +/** Allocate \p BYTES aligned at \p N bytes */ #define ALIGN_MALLOC(BYTES, N) _mesa_align_malloc(BYTES, N) +/** Allocate and zero \p BYTES bytes aligned at \p N bytes */ #define ALIGN_CALLOC(BYTES, N) _mesa_align_calloc(BYTES, N) +/** Allocate a structure of type \p T aligned at \p N bytes */ #define ALIGN_MALLOC_STRUCT(T, N) (struct T *) _mesa_align_malloc(sizeof(struct T), N) +/** Allocate and zero a structure of type \p T aligned at \p N bytes */ #define ALIGN_CALLOC_STRUCT(T, N) (struct T *) _mesa_align_calloc(sizeof(struct T), N) +/** Free aligned memory */ #define ALIGN_FREE(PTR) _mesa_align_free(PTR) +/** Copy \p BYTES bytes from \p SRC into \p DST */ #define MEMCPY( DST, SRC, BYTES) _mesa_memcpy(DST, SRC, BYTES) +/** Set \p N bytes in \p DST to \p VAL */ #define MEMSET( DST, VAL, N ) _mesa_memset(DST, VAL, N) #define MEMSET16( DST, VAL, N ) _mesa_memset16( (DST), (VAL), (size_t) (N) ) +/*@}*/ + + +/**********************************************************************/ +/** \name [Pseudo] static array declaration. + * + * MACs and BeOS don't support static larger than 32kb, so ... + */ +/*@{*/ + +/** + * \def DEFARRAY + * Define a [static] unidimensional array + */ + +/** + * \def DEFMARRAY + * Define a [static] bi-dimensional array + */ + +/** + * \def DEFMNARRAY + * Define a [static] tri-dimensional array + */ + +/** + * \def CHECKARRAY + * Verifies a [static] array was properly allocated. + */ + +/** + * \def UNDEFARRAY + * Undefine (free) a [static] array. + */ -/* MACs and BeOS don't support static larger than 32kb, so... */ #if defined(macintosh) && !defined(__MRC__) /*extern char *AGLAlloc(int size);*/ /*extern void AGLFree(char* ptr);*/ # define DEFARRAY(TYPE,NAME,SIZE) TYPE *NAME = (TYPE*)_mesa_alloc(sizeof(TYPE)*(SIZE)) # define DEFMARRAY(TYPE,NAME,SIZE1,SIZE2) TYPE (*NAME)[SIZE2] = (TYPE(*)[SIZE2])_mesa_alloc(sizeof(TYPE)*(SIZE1)*(SIZE2)) # define DEFMNARRAY(TYPE,NAME,SIZE1,SIZE2,SIZE3) TYPE (*NAME)[SIZE2][SIZE3] = (TYPE(*)[SIZE2][SIZE3])_mesa_alloc(sizeof(TYPE)*(SIZE1)*(SIZE2)*(SIZE3)) - # define CHECKARRAY(NAME,CMD) do {if (!(NAME)) {CMD;}} while (0) # define UNDEFARRAY(NAME) do {if ((NAME)) {_mesa_free((char*)NAME);} }while (0) #elif defined(__BEOS__) @@ -99,14 +146,33 @@ extern "C" { # define UNDEFARRAY(NAME) #endif +/*@}*/ -#ifdef MESA_EXTERNAL_BUFFERALLOC -/* - * If you want Mesa's depth/stencil/accum/etc buffers to be allocated - * with a specialized allocator you can define MESA_EXTERNAL_BUFFERALLOC - * and implement _ext_mesa_alloc/free_pixelbuffer() in your app. + +/**********************************************************************/ +/** \name External pixel buffer allocation. + * + * If you want Mesa's depth/stencil/accum/etc buffers to be allocated with a + * specialized allocator you can define MESA_EXTERNAL_BUFFERALLOC and implement + * _ext_mesa_alloc_pixelbuffer() _ext_mesa_free_pixelbuffer() in your + * application. + * + * \author * Contributed by Gerk Huisma ([email protected]). */ +/*@{*/ + +/** + * \def MESA_PBUFFER_ALLOC + * Allocate a pixel buffer. + */ + +/** + * \def MESA_PBUFFER_FREE + * Free a pixel buffer. + */ + +#ifdef MESA_EXTERNAL_BUFFERALLOC extern void *_ext_mesa_alloc_pixelbuffer( unsigned int size ); extern void _ext_mesa_free_pixelbuffer( void *pb ); @@ -118,6 +184,8 @@ extern void _ext_mesa_free_pixelbuffer( void *pb ); #define MESA_PBUFFER_FREE(PTR) _mesa_align_free(PTR) #endif +/*@}*/ + /********************************************************************** diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c index 42180ad7273..3ef2e3eac1b 100644 --- a/src/mesa/main/light.c +++ b/src/mesa/main/light.c @@ -610,7 +610,7 @@ void _mesa_update_material( GLcontext *ctx, if (ctx->Light.ColorMaterialEnabled) bitmask &= ~ctx->Light.ColorMaterialBitmask; - if (MESA_VERBOSE&VERBOSE_IMMEDIATE) + if (MESA_VERBOSE&VERBOSE_IMMEDIATE) _mesa_debug(ctx, "_mesa_update_material, mask 0x%x\n", bitmask); if (!bitmask) @@ -1119,7 +1119,7 @@ _mesa_validate_all_lighting_tables( GLcontext *ctx ) { GLint i; GLfloat shininess; - + shininess = ctx->Light.Material[0].Shininess; if (!ctx->_ShineTable[0] || ctx->_ShineTable[0]->shininess != shininess) validate_shine_table( ctx, 0, shininess ); @@ -1146,15 +1146,12 @@ void _mesa_update_lighting( GLcontext *ctx ) { struct gl_light *light; - ctx->_NeedEyeCoords &= ~NEED_EYE_LIGHT; - ctx->_NeedNormals &= ~NEED_NORMALS_LIGHT; + ctx->Light._NeedEyeCoords = 0; ctx->Light._Flags = 0; if (!ctx->Light.Enabled) return; - ctx->_NeedNormals |= NEED_NORMALS_LIGHT; - foreach(light, &ctx->Light.EnabledList) { ctx->Light._Flags |= light->_Flags; } @@ -1164,9 +1161,9 @@ _mesa_update_lighting( GLcontext *ctx ) ctx->Light.Model.ColorControl == GL_SEPARATE_SPECULAR_COLOR || ctx->Light.Model.LocalViewer); - if ((ctx->Light._Flags & LIGHT_POSITIONAL) || - ctx->Light.Model.LocalViewer) - ctx->_NeedEyeCoords |= NEED_EYE_LIGHT; + ctx->Light._NeedEyeCoords = ((ctx->Light._Flags & LIGHT_POSITIONAL) || + ctx->Light.Model.LocalViewer); + /* XXX: This test is overkill & needs to be fixed both for software and @@ -1174,7 +1171,7 @@ _mesa_update_lighting( GLcontext *ctx ) * be tested to verify this. */ if (ctx->Light._NeedVertices) - ctx->_NeedEyeCoords |= NEED_EYE_LIGHT; + ctx->Light._NeedEyeCoords = GL_TRUE; /* Precompute some shading values. Although we reference @@ -1221,7 +1218,7 @@ _mesa_update_lighting( GLcontext *ctx ) * Update on (_NEW_MODELVIEW | _NEW_LIGHT) when lighting is enabled. * Also update on lighting space changes. */ -void +static void _mesa_compute_light_positions( GLcontext *ctx ) { struct gl_light *light; @@ -1290,3 +1287,201 @@ _mesa_compute_light_positions( GLcontext *ctx ) } } } + + + + + +static void +update_modelview_scale( GLcontext *ctx ) +{ + ctx->_ModelViewInvScale = 1.0F; + if (ctx->ModelviewMatrixStack.Top->flags & (MAT_FLAG_UNIFORM_SCALE | + MAT_FLAG_GENERAL_SCALE | + MAT_FLAG_GENERAL_3D | + MAT_FLAG_GENERAL) ) { + const GLfloat *m = ctx->ModelviewMatrixStack.Top->inv; + GLfloat f = m[2] * m[2] + m[6] * m[6] + m[10] * m[10]; + if (f < 1e-12) f = 1.0; + if (ctx->_NeedEyeCoords) + ctx->_ModelViewInvScale = (GLfloat) INV_SQRTF(f); + else + ctx->_ModelViewInvScale = (GLfloat) SQRTF(f); + } +} + + +/* Bring uptodate any state that relies on _NeedEyeCoords. + */ +void _mesa_update_tnl_spaces( GLcontext *ctx, GLuint new_state ) +{ + const GLuint oldneedeyecoords = ctx->_NeedEyeCoords; + + ctx->_NeedEyeCoords = (ctx->_ForceEyeCoords || + (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) || + ctx->Point._Attenuated || + ctx->Light._NeedEyeCoords); + + /* Check if the truth-value interpretations of the bitfields have + * changed: + */ + if ((oldneedeyecoords == 0) != (ctx->_NeedEyeCoords == 0)) { + /* Recalculate all state that depends on _NeedEyeCoords. + */ + update_modelview_scale(ctx); + _mesa_compute_light_positions( ctx ); + + if (ctx->Driver.LightingSpaceChange) + ctx->Driver.LightingSpaceChange( ctx ); + } + else { + GLuint new_state = ctx->NewState; + + /* Recalculate that same state only if it has been invalidated + * by other statechanges. + */ + if (new_state & _NEW_MODELVIEW) + update_modelview_scale(ctx); + + if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW)) + _mesa_compute_light_positions( ctx ); + } +} + + +/* Drivers may need this if the hardware tnl unit doesn't support the + * light-in-modelspace optimization. It's also useful for debugging. + */ +void +_mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag ) +{ + ctx->_ForceEyeCoords = flag; + ctx->NewState |= _NEW_POINT; /* one of the bits from + * _MESA_NEW_NEED_EYE_COORDS. + */ +} + + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +/** + * Initialize the n-th light data structure. + * + * \param l pointer to the gl_light structure to be initialized. + * \param n number of the light. + * \note The defaults for light 0 are different than the other lights. + */ +static void +init_light( struct gl_light *l, GLuint n ) +{ + make_empty_list( l ); + + ASSIGN_4V( l->Ambient, 0.0, 0.0, 0.0, 1.0 ); + if (n==0) { + ASSIGN_4V( l->Diffuse, 1.0, 1.0, 1.0, 1.0 ); + ASSIGN_4V( l->Specular, 1.0, 1.0, 1.0, 1.0 ); + } + else { + ASSIGN_4V( l->Diffuse, 0.0, 0.0, 0.0, 1.0 ); + ASSIGN_4V( l->Specular, 0.0, 0.0, 0.0, 1.0 ); + } + ASSIGN_4V( l->EyePosition, 0.0, 0.0, 1.0, 0.0 ); + ASSIGN_3V( l->EyeDirection, 0.0, 0.0, -1.0 ); + l->SpotExponent = 0.0; + _mesa_invalidate_spot_exp_table( l ); + l->SpotCutoff = 180.0; + l->_CosCutoff = 0.0; /* KW: -ve values not admitted */ + l->ConstantAttenuation = 1.0; + l->LinearAttenuation = 0.0; + l->QuadraticAttenuation = 0.0; + l->Enabled = GL_FALSE; +} + +/** + * Initialize the light model data structure. + * + * \param lm pointer to the gl_lightmodel structure to be initialized. + */ +static void +init_lightmodel( struct gl_lightmodel *lm ) +{ + ASSIGN_4V( lm->Ambient, 0.2F, 0.2F, 0.2F, 1.0F ); + lm->LocalViewer = GL_FALSE; + lm->TwoSide = GL_FALSE; + lm->ColorControl = GL_SINGLE_COLOR; +} + +/** + * Initialize the material data structure. + * + * \param m pointer to the gl_material structure to be initialized. + */ +static void +init_material( struct gl_material *m ) +{ + ASSIGN_4V( m->Ambient, 0.2F, 0.2F, 0.2F, 1.0F ); + ASSIGN_4V( m->Diffuse, 0.8F, 0.8F, 0.8F, 1.0F ); + ASSIGN_4V( m->Specular, 0.0F, 0.0F, 0.0F, 1.0F ); + ASSIGN_4V( m->Emission, 0.0F, 0.0F, 0.0F, 1.0F ); + m->Shininess = 0.0; + m->AmbientIndex = 0; + m->DiffuseIndex = 1; + m->SpecularIndex = 1; +} + + +void _mesa_init_lighting( GLcontext *ctx ) +{ + int i; + + /* Lighting group */ + for (i=0;i<MAX_LIGHTS;i++) { + init_light( &ctx->Light.Light[i], i ); + } + make_empty_list( &ctx->Light.EnabledList ); + + init_lightmodel( &ctx->Light.Model ); + init_material( &ctx->Light.Material[0] ); + init_material( &ctx->Light.Material[1] ); + ctx->Light.ShadeModel = GL_SMOOTH; + ctx->Light.Enabled = GL_FALSE; + ctx->Light.ColorMaterialFace = GL_FRONT_AND_BACK; + ctx->Light.ColorMaterialMode = GL_AMBIENT_AND_DIFFUSE; + ctx->Light.ColorMaterialBitmask = _mesa_material_bitmask( ctx, + GL_FRONT_AND_BACK, + GL_AMBIENT_AND_DIFFUSE, ~0, 0 ); + + ctx->Light.ColorMaterialEnabled = GL_FALSE; + + /* Lighting miscellaneous */ + ctx->_ShineTabList = MALLOC_STRUCT( gl_shine_tab ); + make_empty_list( ctx->_ShineTabList ); + for (i = 0 ; i < 10 ; i++) { + struct gl_shine_tab *s = MALLOC_STRUCT( gl_shine_tab ); + s->shininess = -1; + s->refcount = 0; + insert_at_tail( ctx->_ShineTabList, s ); + } + + + + /* Miscellaneous */ + ctx->Light._NeedEyeCoords = 0; + ctx->_NeedEyeCoords = 0; + ctx->_ModelViewInvScale = 1.0; +} + + +void _mesa_free_lighting_data( GLcontext *ctx ) +{ + struct gl_shine_tab *s, *tmps; + + /* Free lighting shininess exponentiation table */ + foreach_s( s, tmps, ctx->_ShineTabList ) { + FREE( s ); + } + FREE( ctx->_ShineTabList ); +} diff --git a/src/mesa/main/light.h b/src/mesa/main/light.h index 557e4880209..240a6317b71 100644 --- a/src/mesa/main/light.h +++ b/src/mesa/main/light.h @@ -1,3 +1,7 @@ +/** + * \file light.h + * Lighting. + */ /* * Mesa 3-D graphics library @@ -30,10 +34,10 @@ #include "mtypes.h" - extern void _mesa_ShadeModel( GLenum mode ); +#if _HAVE_FULL_GL extern void _mesa_ColorMaterial( GLenum face, GLenum mode ); @@ -91,7 +95,6 @@ do { \ } while (0) - extern GLuint _mesa_material_bitmask( GLcontext *ctx, GLenum face, GLenum pname, GLuint legal, @@ -105,7 +108,7 @@ extern void _mesa_validate_all_lighting_tables( GLcontext *ctx ); extern void _mesa_update_lighting( GLcontext *ctx ); -extern void _mesa_compute_light_positions( GLcontext *ctx ); +extern void _mesa_update_tnl_spaces( GLcontext *ctx, GLuint new_state ); extern void _mesa_update_material( GLcontext *ctx, const struct gl_material src[2], @@ -118,5 +121,22 @@ extern void _mesa_copy_material_pairs( struct gl_material dst[2], extern void _mesa_update_color_material( GLcontext *ctx, const GLfloat rgba[4] ); +extern void _mesa_init_lighting( GLcontext *ctx ); + +extern void _mesa_free_lighting_data( GLcontext *ctx ); + +extern void _mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag ); + +#else +#define _mesa_update_color_material( c, r ) ((void)0) +#define _mesa_validate_all_lighting_tables( c ) ((void)0) +#define _mesa_invalidate_spot_exp_table( l ) ((void)0) +#define _mesa_material_bitmask( c, f, p, l, s ) 0 +#define _mesa_init_lighting( c ) ((void)0) +#define _mesa_free_lighting_data( c ) ((void)0) +#define _mesa_update_lighting( c ) ((void)0) +#define _mesa_update_tnl_spaces( c, n ) ((void)0) +#define GET_SHINE_TAB_ENTRY( table, dp, result ) ((result)=0) +#endif #endif diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c index 8a5f59f5965..27f778a3946 100644 --- a/src/mesa/main/lines.c +++ b/src/mesa/main/lines.c @@ -1,3 +1,7 @@ +/** + * \file lines.c + * Line operations. + */ /* * Mesa 3-D graphics library @@ -33,6 +37,19 @@ #include "mtypes.h" +/** + * Set the line width. + * + * \param width line width in pixels. + * + * \sa glLineWidth(). + * + * Verifies the parameter and updates gl_line_attrib::Width. On a change, + * flushes the vertices, updates the clamped line width and marks the + * DD_LINE_WIDTH flag in __GLcontextRec::_TriangleCaps for the drivers if the + * width is different from one. Notifies the driver via the + * dd_function_table::LineWidth callback. + */ void _mesa_LineWidth( GLfloat width ) { @@ -64,7 +81,18 @@ _mesa_LineWidth( GLfloat width ) } - +/** + * Set the line stipple pattern. + * + * \param factor pattern scale factor. + * \param pattern bit pattern. + * + * \sa glLineStipple(). + * + * Updates gl_line_attrib::StippleFactor and gl_line_attrib::StipplePattern. On + * change flushes the vertices and notifies the driver via + * the dd_function_table::LineStipple callback. + */ void _mesa_LineStipple( GLint factor, GLushort pattern ) { @@ -84,3 +112,23 @@ _mesa_LineStipple( GLint factor, GLushort pattern ) if (ctx->Driver.LineStipple) ctx->Driver.LineStipple( ctx, factor, pattern ); } + + +/** + * Initialize the context line state. + * + * \param ctx GL context. + * + * Initializes __GLcontextRec::Line and line related constants in + * __GLcontextRec::Const. + */ +void _mesa_init_line( GLcontext * ctx ) +{ + /* Line group */ + ctx->Line.SmoothFlag = GL_FALSE; + ctx->Line.StippleFlag = GL_FALSE; + ctx->Line.Width = 1.0; + ctx->Line._Width = 1.0; + ctx->Line.StipplePattern = 0xffff; + ctx->Line.StippleFactor = 1; +} diff --git a/src/mesa/main/lines.h b/src/mesa/main/lines.h index ac4b33f4db6..7305a986473 100644 --- a/src/mesa/main/lines.h +++ b/src/mesa/main/lines.h @@ -1,3 +1,7 @@ +/** + * \file lines.h + * Line operations. + */ /* * Mesa 3-D graphics library @@ -24,6 +28,7 @@ */ + #ifndef LINES_H #define LINES_H @@ -37,5 +42,7 @@ _mesa_LineWidth( GLfloat width ); extern void _mesa_LineStipple( GLint factor, GLushort pattern ); +extern void +_mesa_init_line( GLcontext * ctx ); #endif diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h index 9f326a0093b..fcb63f53f20 100644 --- a/src/mesa/main/macros.h +++ b/src/mesa/main/macros.h @@ -1,3 +1,7 @@ +/** + * \file macros.h + * A collection of useful macros. + */ /* * Mesa 3-D graphics library @@ -24,60 +28,56 @@ */ -/* - * A collection of useful macros. - */ - #ifndef MACROS_H #define MACROS_H #include "imports.h" -/* - * Integer / float conversion for colors, normals, etc. +/** + * \name Integer / float conversion for colors, normals, etc. */ +/*@{*/ -/* Convert GLubyte in [0,255] to GLfloat in [0.0,1.0] */ +/** Convert GLubyte in [0,255] to GLfloat in [0.0,1.0] */ extern GLfloat _mesa_ubyte_to_float_color_tab[256]; #define UBYTE_TO_FLOAT(u) _mesa_ubyte_to_float_color_tab[(unsigned int)(u)] -/* Convert GLfloat in [0.0,1.0] to GLubyte in [0,255] */ +/** Convert GLfloat in [0.0,1.0] to GLubyte in [0,255] */ #define FLOAT_TO_UBYTE(X) ((GLubyte) (GLint) ((X) * 255.0F)) -/* Convert GLbyte in [-128,127] to GLfloat in [-1.0,1.0] */ +/** Convert GLbyte in [-128,127] to GLfloat in [-1.0,1.0] */ #define BYTE_TO_FLOAT(B) ((2.0F * (B) + 1.0F) * (1.0F/255.0F)) -/* Convert GLfloat in [-1.0,1.0] to GLbyte in [-128,127] */ +/** Convert GLfloat in [-1.0,1.0] to GLbyte in [-128,127] */ #define FLOAT_TO_BYTE(X) ( (((GLint) (255.0F * (X))) - 1) / 2 ) -/* Convert GLushort in [0,65536] to GLfloat in [0.0,1.0] */ +/** Convert GLushort in [0,65536] to GLfloat in [0.0,1.0] */ #define USHORT_TO_FLOAT(S) ((GLfloat) (S) * (1.0F / 65535.0F)) -/* Convert GLfloat in [0.0,1.0] to GLushort in [0,65536] */ +/** Convert GLfloat in [0.0,1.0] to GLushort in [0,65536] */ #define FLOAT_TO_USHORT(X) ((GLushort) (GLint) ((X) * 65535.0F)) - -/* Convert GLshort in [-32768,32767] to GLfloat in [-1.0,1.0] */ +/** Convert GLshort in [-32768,32767] to GLfloat in [-1.0,1.0] */ #define SHORT_TO_FLOAT(S) ((2.0F * (S) + 1.0F) * (1.0F/65535.0F)) -/* Convert GLfloat in [0.0,1.0] to GLshort in [-32768,32767] */ +/** Convert GLfloat in [0.0,1.0] to GLshort in [-32768,32767] */ #define FLOAT_TO_SHORT(X) ( (((GLint) (65535.0F * (X))) - 1) / 2 ) -/* Convert GLuint in [0,4294967295] to GLfloat in [0.0,1.0] */ +/** Convert GLuint in [0,4294967295] to GLfloat in [0.0,1.0] */ #define UINT_TO_FLOAT(U) ((GLfloat) (U) * (1.0F / 4294967295.0F)) -/* Convert GLfloat in [0.0,1.0] to GLuint in [0,4294967295] */ +/** Convert GLfloat in [0.0,1.0] to GLuint in [0,4294967295] */ #define FLOAT_TO_UINT(X) ((GLuint) ((X) * 4294967295.0)) -/* Convert GLint in [-2147483648,2147483647] to GLfloat in [-1.0,1.0] */ +/** Convert GLint in [-2147483648,2147483647] to GLfloat in [-1.0,1.0] */ #define INT_TO_FLOAT(I) ((2.0F * (I) + 1.0F) * (1.0F/4294967294.0F)) -/* Convert GLfloat in [-1.0,1.0] to GLint in [-2147483648,2147483647] */ +/** Convert GLfloat in [-1.0,1.0] to GLint in [-2147483648,2147483647] */ /* causes overflow: #define FLOAT_TO_INT(X) ( (((GLint) (4294967294.0F * (X))) - 1) / 2 ) */ @@ -103,52 +103,41 @@ extern GLfloat _mesa_ubyte_to_float_color_tab[256]; us = ( (GLushort) IROUND( (f) * 65535.0F) ) -/* Stepping a GLfloat pointer by a byte stride - */ +/** Stepping a GLfloat pointer by a byte stride */ #define STRIDE_F(p, i) (p = (GLfloat *)((GLubyte *)p + i)) +/** Stepping a GLuint pointer by a byte stride */ #define STRIDE_UI(p, i) (p = (GLuint *)((GLubyte *)p + i)) +/** Stepping a GLubyte[4] pointer by a byte stride */ #define STRIDE_4UB(p, i) (p = (GLubyte (*)[4])((GLubyte *)p + i)) +/** Stepping a GLchan[4] pointer by a byte stride */ #define STRIDE_4CHAN(p, i) (p = (GLchan (*)[4])((GLubyte *)p + i)) +/** Stepping a GLchan pointer by a byte stride */ #define STRIDE_CHAN(p, i) (p = (GLchan *)((GLubyte *)p + i)) +/** Stepping a \p t pointer by a byte stride */ #define STRIDE_T(p, t, i) (p = (t)((GLubyte *)p + i)) -#define ZERO_2V( DST ) (DST)[0] = (DST)[1] = 0 -#define ZERO_3V( DST ) (DST)[0] = (DST)[1] = (DST)[2] = 0 -#define ZERO_4V( DST ) (DST)[0] = (DST)[1] = (DST)[2] = (DST)[3] = 0 +/**********************************************************************/ +/** \name 4-element vector operations */ +/*@{*/ +/** Zero */ +#define ZERO_4V( DST ) (DST)[0] = (DST)[1] = (DST)[2] = (DST)[3] = 0 +/** Test for equality */ #define TEST_EQ_4V(a,b) ((a)[0] == (b)[0] && \ (a)[1] == (b)[1] && \ (a)[2] == (b)[2] && \ (a)[3] == (b)[3]) -#define TEST_EQ_3V(a,b) ((a)[0] == (b)[0] && \ - (a)[1] == (b)[1] && \ - (a)[2] == (b)[2]) - +/** Test for equality (unsigned bytes) */ #if defined(__i386__) #define TEST_EQ_4UBV(DST, SRC) *((GLuint*)(DST)) == *((GLuint*)(SRC)) #else #define TEST_EQ_4UBV(DST, SRC) TEST_EQ_4V(DST, SRC) #endif - - -/* Copy short vectors: */ -#define COPY_2V( DST, SRC ) \ -do { \ - (DST)[0] = (SRC)[0]; \ - (DST)[1] = (SRC)[1]; \ -} while (0) - -#define COPY_3V( DST, SRC ) \ -do { \ - (DST)[0] = (SRC)[0]; \ - (DST)[1] = (SRC)[1]; \ - (DST)[2] = (SRC)[2]; \ -} while (0) - +/** Copy a 4-element vector */ #define COPY_4V( DST, SRC ) \ do { \ (DST)[0] = (SRC)[0]; \ @@ -157,19 +146,7 @@ do { \ (DST)[3] = (SRC)[3]; \ } while (0) -#define COPY_2V_CAST( DST, SRC, CAST ) \ -do { \ - (DST)[0] = (CAST)(SRC)[0]; \ - (DST)[1] = (CAST)(SRC)[1]; \ -} while (0) - -#define COPY_3V_CAST( DST, SRC, CAST ) \ -do { \ - (DST)[0] = (CAST)(SRC)[0]; \ - (DST)[1] = (CAST)(SRC)[1]; \ - (DST)[2] = (CAST)(SRC)[2]; \ -} while (0) - +/** Copy a 4-element vector with cast */ #define COPY_4V_CAST( DST, SRC, CAST ) \ do { \ (DST)[0] = (CAST)(SRC)[0]; \ @@ -178,6 +155,7 @@ do { \ (DST)[3] = (CAST)(SRC)[3]; \ } while (0) +/** Copy a 4-element unsigned byte vector */ #if defined(__i386__) #define COPY_4UBV(DST, SRC) \ do { \ @@ -194,21 +172,7 @@ do { \ } while (0) #endif -#define COPY_2FV( DST, SRC ) \ -do { \ - const GLfloat *_tmp = (SRC); \ - (DST)[0] = _tmp[0]; \ - (DST)[1] = _tmp[1]; \ -} while (0) - -#define COPY_3FV( DST, SRC ) \ -do { \ - const GLfloat *_tmp = (SRC); \ - (DST)[0] = _tmp[0]; \ - (DST)[1] = _tmp[1]; \ - (DST)[2] = _tmp[2]; \ -} while (0) - +/** Copy a 4-element float vector */ #define COPY_4FV( DST, SRC ) \ do { \ const GLfloat *_tmp = (SRC); \ @@ -219,7 +183,7 @@ do { \ } while (0) - +/** Copy \p SZ elements into a 4-element vector */ #define COPY_SZ_4V(DST, SZ, SRC) \ do { \ switch (SZ) { \ @@ -230,12 +194,15 @@ do { \ } \ } while(0) +/** Copy \p SZ elements into a homegeneous (4-element) vector, giving + * default values to the remaining */ #define COPY_CLEAN_4V(DST, SZ, SRC) \ do { \ ASSIGN_4V( DST, 0, 0, 0, 1 ); \ COPY_SZ_4V( DST, SZ, SRC ); \ } while (0) +/** Subtraction */ #define SUB_4V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] - (SRCB)[0]; \ @@ -244,6 +211,7 @@ do { \ (DST)[3] = (SRCA)[3] - (SRCB)[3]; \ } while (0) +/** Addition */ #define ADD_4V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] + (SRCB)[0]; \ @@ -252,6 +220,7 @@ do { \ (DST)[3] = (SRCA)[3] + (SRCB)[3]; \ } while (0) +/** Element-wise multiplication */ #define SCALE_4V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] * (SRCB)[0]; \ @@ -260,6 +229,7 @@ do { \ (DST)[3] = (SRCA)[3] * (SRCB)[3]; \ } while (0) +/** In-place addition */ #define ACC_4V( DST, SRC ) \ do { \ (DST)[0] += (SRC)[0]; \ @@ -268,6 +238,7 @@ do { \ (DST)[3] += (SRC)[3]; \ } while (0) +/** Element-wise multiplication and addition */ #define ACC_SCALE_4V( DST, SRCA, SRCB ) \ do { \ (DST)[0] += (SRCA)[0] * (SRCB)[0]; \ @@ -276,6 +247,7 @@ do { \ (DST)[3] += (SRCA)[3] * (SRCB)[3]; \ } while (0) +/** In-place scalar multiplication and addition */ #define ACC_SCALE_SCALAR_4V( DST, S, SRCB ) \ do { \ (DST)[0] += S * (SRCB)[0]; \ @@ -284,6 +256,7 @@ do { \ (DST)[3] += S * (SRCB)[3]; \ } while (0) +/** Scalar multiplication */ #define SCALE_SCALAR_4V( DST, S, SRCB ) \ do { \ (DST)[0] = S * (SRCB)[0]; \ @@ -292,7 +265,7 @@ do { \ (DST)[3] = S * (SRCB)[3]; \ } while (0) - +/** In-place scalar multiplication */ #define SELF_SCALE_SCALAR_4V( DST, S ) \ do { \ (DST)[0] *= S; \ @@ -301,10 +274,56 @@ do { \ (DST)[3] *= S; \ } while (0) +/** Assignment */ +#define ASSIGN_4V( V, V0, V1, V2, V3 ) \ +do { \ + V[0] = V0; \ + V[1] = V1; \ + V[2] = V2; \ + V[3] = V3; \ +} while(0) -/* - * Similarly for 3-vectors. - */ +/*@}*/ + + +/**********************************************************************/ +/** \name 3-element vector operations*/ +/*@{*/ + +/** Zero */ +#define ZERO_3V( DST ) (DST)[0] = (DST)[1] = (DST)[2] = 0 + +/** Test for equality */ +#define TEST_EQ_3V(a,b) ((a)[0] == (b)[0] && \ + (a)[1] == (b)[1] && \ + (a)[2] == (b)[2]) + +/** Copy a 3-element vector */ +#define COPY_3V( DST, SRC ) \ +do { \ + (DST)[0] = (SRC)[0]; \ + (DST)[1] = (SRC)[1]; \ + (DST)[2] = (SRC)[2]; \ +} while (0) + +/** Copy a 3-element vector with cast */ +#define COPY_3V_CAST( DST, SRC, CAST ) \ +do { \ + (DST)[0] = (CAST)(SRC)[0]; \ + (DST)[1] = (CAST)(SRC)[1]; \ + (DST)[2] = (CAST)(SRC)[2]; \ +} while (0) + +/** Copy a 3-element float vector */ +#define COPY_3FV( DST, SRC ) \ +do { \ + const GLfloat *_tmp = (SRC); \ + (DST)[0] = _tmp[0]; \ + (DST)[1] = _tmp[1]; \ + (DST)[2] = _tmp[2]; \ +} while (0) + +/** Subtraction */ #define SUB_3V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] - (SRCB)[0]; \ @@ -312,6 +331,7 @@ do { \ (DST)[2] = (SRCA)[2] - (SRCB)[2]; \ } while (0) +/** Addition */ #define ADD_3V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] + (SRCB)[0]; \ @@ -319,6 +339,7 @@ do { \ (DST)[2] = (SRCA)[2] + (SRCB)[2]; \ } while (0) +/** In-place scalar multiplication */ #define SCALE_3V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] * (SRCB)[0]; \ @@ -326,6 +347,7 @@ do { \ (DST)[2] = (SRCA)[2] * (SRCB)[2]; \ } while (0) +/** In-place element-wise multiplication */ #define SELF_SCALE_3V( DST, SRC ) \ do { \ (DST)[0] *= (SRC)[0]; \ @@ -333,6 +355,7 @@ do { \ (DST)[2] *= (SRC)[2]; \ } while (0) +/** In-place addition */ #define ACC_3V( DST, SRC ) \ do { \ (DST)[0] += (SRC)[0]; \ @@ -340,6 +363,7 @@ do { \ (DST)[2] += (SRC)[2]; \ } while (0) +/** Element-wise multiplication and addition */ #define ACC_SCALE_3V( DST, SRCA, SRCB ) \ do { \ (DST)[0] += (SRCA)[0] * (SRCB)[0]; \ @@ -347,6 +371,7 @@ do { \ (DST)[2] += (SRCA)[2] * (SRCB)[2]; \ } while (0) +/** Scalar multiplication */ #define SCALE_SCALAR_3V( DST, S, SRCB ) \ do { \ (DST)[0] = S * (SRCB)[0]; \ @@ -354,6 +379,7 @@ do { \ (DST)[2] = S * (SRCB)[2]; \ } while (0) +/** In-place scalar multiplication and addition */ #define ACC_SCALE_SCALAR_3V( DST, S, SRCB ) \ do { \ (DST)[0] += S * (SRCB)[0]; \ @@ -361,6 +387,7 @@ do { \ (DST)[2] += S * (SRCB)[2]; \ } while (0) +/** In-place scalar multiplication */ #define SELF_SCALE_SCALAR_3V( DST, S ) \ do { \ (DST)[0] *= S; \ @@ -368,6 +395,7 @@ do { \ (DST)[2] *= S; \ } while (0) +/** In-place scalar addition */ #define ACC_SCALAR_3V( DST, S ) \ do { \ (DST)[0] += S; \ @@ -375,56 +403,103 @@ do { \ (DST)[2] += S; \ } while (0) -/* And also for 2-vectors - */ +/** Assignment */ +#define ASSIGN_3V( V, V0, V1, V2 ) \ +do { \ + V[0] = V0; \ + V[1] = V1; \ + V[2] = V2; \ +} while(0) + +/*@}*/ + + +/**********************************************************************/ +/** \name 2-element vector operations*/ +/*@{*/ + +/** Zero */ +#define ZERO_2V( DST ) (DST)[0] = (DST)[1] = 0 + +/** Copy a 2-element vector */ +#define COPY_2V( DST, SRC ) \ +do { \ + (DST)[0] = (SRC)[0]; \ + (DST)[1] = (SRC)[1]; \ +} while (0) + +/** Copy a 2-element vector with cast */ +#define COPY_2V_CAST( DST, SRC, CAST ) \ +do { \ + (DST)[0] = (CAST)(SRC)[0]; \ + (DST)[1] = (CAST)(SRC)[1]; \ +} while (0) + +/** Copy a 2-element float vector */ +#define COPY_2FV( DST, SRC ) \ +do { \ + const GLfloat *_tmp = (SRC); \ + (DST)[0] = _tmp[0]; \ + (DST)[1] = _tmp[1]; \ +} while (0) + +/** Subtraction */ #define SUB_2V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] - (SRCB)[0]; \ (DST)[1] = (SRCA)[1] - (SRCB)[1]; \ } while (0) +/** Addition */ #define ADD_2V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] + (SRCB)[0]; \ (DST)[1] = (SRCA)[1] + (SRCB)[1]; \ } while (0) +/** In-place scalar multiplication */ #define SCALE_2V( DST, SRCA, SRCB ) \ do { \ (DST)[0] = (SRCA)[0] * (SRCB)[0]; \ (DST)[1] = (SRCA)[1] * (SRCB)[1]; \ } while (0) +/** In-place addition */ #define ACC_2V( DST, SRC ) \ do { \ (DST)[0] += (SRC)[0]; \ (DST)[1] += (SRC)[1]; \ } while (0) +/** Element-wise multiplication and addition */ #define ACC_SCALE_2V( DST, SRCA, SRCB ) \ do { \ (DST)[0] += (SRCA)[0] * (SRCB)[0]; \ (DST)[1] += (SRCA)[1] * (SRCB)[1]; \ } while (0) +/** Scalar multiplication */ #define SCALE_SCALAR_2V( DST, S, SRCB ) \ do { \ (DST)[0] = S * (SRCB)[0]; \ (DST)[1] = S * (SRCB)[1]; \ } while (0) +/** In-place scalar multiplication and addition */ #define ACC_SCALE_SCALAR_2V( DST, S, SRCB ) \ do { \ (DST)[0] += S * (SRCB)[0]; \ (DST)[1] += S * (SRCB)[1]; \ } while (0) +/** In-place scalar multiplication */ #define SELF_SCALE_SCALAR_2V( DST, S ) \ do { \ (DST)[0] *= S; \ (DST)[1] *= S; \ } while (0) +/** In-place scalar addition */ #define ACC_SCALAR_2V( DST, S ) \ do { \ (DST)[0] += S; \ @@ -433,14 +508,15 @@ do { \ -/* +/** * Linear interpolation - * NOTE: OUT argument is evaluated twice! - * NOTE: Be wary of using *coord++ as an argument to any of these macros! + * + * \note \p OUT argument is evaluated twice! + * \note Be wary of using *coord++ as an argument to any of these macros! */ #define LINTERP(T, OUT, IN) ((OUT) + (T) * ((IN) - (OUT))) -/* Can do better with integer math: +/* Can do better with integer math */ #define INTERP_UB( t, dstub, outub, inub ) \ do { \ @@ -506,58 +582,47 @@ do { \ -/* Assign scalers to short vectors: */ +/** Assign scalers to short vectors */ #define ASSIGN_2V( V, V0, V1 ) \ do { \ V[0] = V0; \ V[1] = V1; \ } while(0) -#define ASSIGN_3V( V, V0, V1, V2 ) \ -do { \ - V[0] = V0; \ - V[1] = V1; \ - V[2] = V2; \ -} while(0) - -#define ASSIGN_4V( V, V0, V1, V2, V3 ) \ -do { \ - V[0] = V0; \ - V[1] = V1; \ - V[2] = V2; \ - V[3] = V3; \ -} while(0) +/*@}*/ -/* Clamp X to [MIN,MAX]: */ +/** Clamp X to [MIN,MAX] */ #define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) ) -/* Assign X to CLAMP(X, MIN, MAX) */ +/** Assign X to CLAMP(X, MIN, MAX) */ #define CLAMP_SELF(x, mn, mx) \ ( (x)<(mn) ? ((x) = (mn)) : ((x)>(mx) ? ((x)=(mx)) : (x)) ) -/* Min of two values: */ +/** Minimum of two values: */ #define MIN2( A, B ) ( (A)<(B) ? (A) : (B) ) -/* MAX of two values: */ +/** Maximum of two values: */ #define MAX2( A, B ) ( (A)>(B) ? (A) : (B) ) -/* Dot product of two 2-element vectors */ +/** Dot product of two 2-element vectors */ #define DOT2( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] ) -/* Dot product of two 3-element vectors */ +/** Dot product of two 3-element vectors */ #define DOT3( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] + (a)[2]*(b)[2] ) -/* Dot product of two 4-element vectors */ +/** Dot product of two 4-element vectors */ #define DOT4( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] + \ (a)[2]*(b)[2] + (a)[3]*(b)[3] ) +/** Dot product of two 4-element vectors */ #define DOT4V(v,a,b,c,d) (v[0]*(a) + v[1]*(b) + v[2]*(c) + v[3]*(d)) +/** Cross product of two 3-element vectors */ #define CROSS3(n, u, v) \ do { \ (n)[0] = (u)[1]*(v)[2] - (u)[2]*(v)[1]; \ @@ -585,5 +650,7 @@ do { \ #define LEN_SQUARED_2FV( V ) ((V)[0]*(V)[0]+(V)[1]*(V)[1]) +/*@}*/ + #endif diff --git a/src/mesa/main/matrix.c b/src/mesa/main/matrix.c index 244b04ca40d..7e2d91e631c 100644 --- a/src/mesa/main/matrix.c +++ b/src/mesa/main/matrix.c @@ -1,3 +1,13 @@ +/** + * \file matrix.c + * Matrix operations. + * + * \note + * -# 4x4 transformation matrices are stored in memory in column major order. + * -# Points/vertices are to be thought of as column vectors. + * -# Transformation of a point p by a matrix M is: p' = M * p + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,16 +33,6 @@ */ -/* - * Matrix operations - * - * NOTES: - * 1. 4x4 transformation matrices are stored in memory in column major order. - * 2. Points/vertices are to be thought of as column vectors. - * 3. Transformation of a point p by a matrix M is: p' = M * p - */ - - #include "glheader.h" #include "imports.h" #include "buffers.h" @@ -44,7 +44,22 @@ #include "math/m_matrix.h" - +/** + * Apply a perspective projection matrix. + * + * \param left left clipping plane coordinate. + * \param right right clipping plane coordinate. + * \param bottom bottom clipping plane coordinate. + * \param top top clipping plane coordinate. + * \param nearval distance to the near clipping plane. + * \param farval distance to the far clipping plane. + * + * \sa glFrustum(). + * + * Flushes vertices and validates parameters. Calls _math_matrix_frustum() with + * the top matrix of the current matrix stack and sets + * __GLcontextRec::NewState. + */ void _mesa_Frustum( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, @@ -71,6 +86,22 @@ _mesa_Frustum( GLdouble left, GLdouble right, } +/** + * Apply an orthographic projection matrix. + * + * \param left left clipping plane coordinate. + * \param right right clipping plane coordinate. + * \param bottom bottom clipping plane coordinate. + * \param top top clipping plane coordinate. + * \param nearval distance to the near clipping plane. + * \param farval distance to the far clipping plane. + * + * \sa glOrtho(). + * + * Flushes vertices and validates parameters. Calls _math_matrix_ortho() with + * the top matrix of the current matrix stack and sets + * __GLcontextRec::NewState. + */ void _mesa_Ortho( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, @@ -99,6 +130,17 @@ _mesa_Ortho( GLdouble left, GLdouble right, } +/** + * Set the current matrix stack. + * + * \param mode matrix stack. + * + * \sa glMatrixMode(). + * + * Flushes the vertices, validates the parameter and updates + * __GLcontextRec::CurrentStack and gl_transform_attrib::MatrixMode with the + * specified matrix stack. + */ void _mesa_MatrixMode( GLenum mode ) { @@ -170,7 +212,15 @@ _mesa_MatrixMode( GLenum mode ) } - +/** + * Push the current matrix stack. + * + * \sa glPushMatrix(). + * + * Verifies the current matrix stack is not full, and duplicates the top-most + * matrix in the stack. Marks __GLcontextRec::NewState with the stack dirty + * flag. + */ void _mesa_PushMatrix( void ) { @@ -194,7 +244,15 @@ _mesa_PushMatrix( void ) } - +/** + * Pop the current matrix stack. + * + * \sa glPopMatrix(). + * + * Flushes the vertices, verifies the current matrix stack is not empty, and + * moves the stack head down. Marks __GLcontextRec::NewState with the dirty + * stack flag. + */ void _mesa_PopMatrix( void ) { @@ -216,7 +274,15 @@ _mesa_PopMatrix( void ) } - +/** + * Replace the current matrix with the identity matrix. + * + * \sa glLoadIdentity(). + * + * Flushes the vertices and calls _math_matrix_set_identity() with the top-most + * matrix in the current stack. Marks __GLcontextRec::NewState with the stack + * dirty flag. + */ void _mesa_LoadIdentity( void ) { @@ -231,6 +297,17 @@ _mesa_LoadIdentity( void ) } +/** + * Replace the current matrix with a given matrix. + * + * \param m matrix. + * + * \sa glLoadMatrixf(). + * + * Flushes the vertices and calls _math_matrix_loadf() with the top-most matrix + * in the current stack and the given matrix. Marks __GLcontextRec::NewState + * with the dirty stack flag. + */ void _mesa_LoadMatrixf( const GLfloat *m ) { @@ -250,21 +327,16 @@ _mesa_LoadMatrixf( const GLfloat *m ) } -void -_mesa_LoadMatrixd( const GLdouble *m ) -{ - GLint i; - GLfloat f[16]; - if (!m) return; - for (i = 0; i < 16; i++) - f[i] = (GLfloat) m[i]; - _mesa_LoadMatrixf(f); -} - - - -/* - * Multiply the active matrix by an arbitary matrix. +/** + * Multiply the current matrix with a given matrix. + * + * \param m matrix. + * + * \sa glMultMatrixf(). + * + * Flushes the vertices and calls _math_matrix_mul_floats() with the top-most + * matrix in the current stack and the given matrix. Marks + * __GLcontextRec::NewState with the dirty stack flag. */ void _mesa_MultMatrixf( const GLfloat *m ) @@ -284,25 +356,19 @@ _mesa_MultMatrixf( const GLfloat *m ) } -/* - * Multiply the active matrix by an arbitary matrix. - */ -void -_mesa_MultMatrixd( const GLdouble *m ) -{ - GLint i; - GLfloat f[16]; - if (!m) return; - for (i = 0; i < 16; i++) - f[i] = (GLfloat) m[i]; - _mesa_MultMatrixf( f ); -} - - - - -/* - * Execute a glRotate call +/** + * Multiply the current matrix with a rotation matrix. + * + * \param angle angle of rotation, in degrees. + * \param x rotation vector x coordinate. + * \param y rotation vector y coordinate. + * \param z rotation vector z coordinate. + * + * \sa glRotatef(). + * + * Flushes the vertices and calls _math_matrix_rotate() with the top-most + * matrix in the current stack and the given parameters. Marks + * __GLcontextRec::NewState with the dirty stack flag. */ void _mesa_Rotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z ) @@ -315,43 +381,88 @@ _mesa_Rotatef( GLfloat angle, GLfloat x, GLfloat y, GLfloat z ) } } + +/** + * Multiply the current matrix with a general scaling matrix. + * + * \param x x axis scale factor. + * \param y y axis scale factor. + * \param z z axis scale factor. + * + * \sa glScalef(). + * + * Flushes the vertices and calls _math_matrix_scale() with the top-most + * matrix in the current stack and the given parameters. Marks + * __GLcontextRec::NewState with the dirty stack flag. + */ void -_mesa_Rotated( GLdouble angle, GLdouble x, GLdouble y, GLdouble z ) +_mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) { - _mesa_Rotatef((GLfloat) angle, (GLfloat) x, (GLfloat) y, (GLfloat) z); + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); + _math_matrix_scale( ctx->CurrentStack->Top, x, y, z); + ctx->NewState |= ctx->CurrentStack->DirtyFlag; } -/* - * Execute a glScale call +/** + * Multiply the current matrix with a general scaling matrix. + * + * \param x translation vector x coordinate. + * \param y translation vector y coordinate. + * \param z translation vector z coordinate. + * + * \sa glTranslatef(). + * + * Flushes the vertices and calls _math_matrix_translate() with the top-most + * matrix in the current stack and the given parameters. Marks + * __GLcontextRec::NewState with the dirty stack flag. */ void -_mesa_Scalef( GLfloat x, GLfloat y, GLfloat z ) +_mesa_Translatef( GLfloat x, GLfloat y, GLfloat z ) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _math_matrix_scale( ctx->CurrentStack->Top, x, y, z); + _math_matrix_translate( ctx->CurrentStack->Top, x, y, z); ctx->NewState |= ctx->CurrentStack->DirtyFlag; } + +#if _HAVE_FULL_GL +void +_mesa_LoadMatrixd( const GLdouble *m ) +{ + GLint i; + GLfloat f[16]; + if (!m) return; + for (i = 0; i < 16; i++) + f[i] = (GLfloat) m[i]; + _mesa_LoadMatrixf(f); +} void -_mesa_Scaled( GLdouble x, GLdouble y, GLdouble z ) +_mesa_MultMatrixd( const GLdouble *m ) { - _mesa_Scalef((GLfloat) x, (GLfloat) y, (GLfloat) z); + GLint i; + GLfloat f[16]; + if (!m) return; + for (i = 0; i < 16; i++) + f[i] = (GLfloat) m[i]; + _mesa_MultMatrixf( f ); } -/* - * Execute a glTranslate call - */ void -_mesa_Translatef( GLfloat x, GLfloat y, GLfloat z ) +_mesa_Rotated( GLdouble angle, GLdouble x, GLdouble y, GLdouble z ) { - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - _math_matrix_translate( ctx->CurrentStack->Top, x, y, z); - ctx->NewState |= ctx->CurrentStack->DirtyFlag; + _mesa_Rotatef((GLfloat) angle, (GLfloat) x, (GLfloat) y, (GLfloat) z); +} + + +void +_mesa_Scaled( GLdouble x, GLdouble y, GLdouble z ) +{ + _mesa_Scalef((GLfloat) x, (GLfloat) y, (GLfloat) z); } @@ -360,8 +471,10 @@ _mesa_Translated( GLdouble x, GLdouble y, GLdouble z ) { _mesa_Translatef((GLfloat) x, (GLfloat) y, (GLfloat) z); } +#endif +#if _HAVE_FULL_GL void _mesa_LoadTransposeMatrixfARB( const GLfloat *m ) { @@ -400,10 +513,19 @@ _mesa_MultTransposeMatrixdARB( const GLdouble *m ) _math_transposefd(tm, m); _mesa_MultMatrixf(tm); } +#endif - -/* - * Called via glViewport or display list execution. +/** + * Set the viewport. + * + * \param x, y coordinates of the lower-left corner of the viewport rectangle. + * \param width width of the viewport rectangle. + * \param height height of the viewport rectangle. + * + * \sa Called via glViewport() or display list execution. + * + * Flushes the vertices and calls _mesa_set_viewport() with the given + * parameters. */ void _mesa_Viewport( GLint x, GLint y, GLsizei width, GLsizei height ) @@ -413,14 +535,24 @@ _mesa_Viewport( GLint x, GLint y, GLsizei width, GLsizei height ) _mesa_set_viewport(ctx, x, y, width, height); } - /** * Set new viewport parameters and update derived state (the _WindowMap * matrix). Usually called from _mesa_Viewport(). + * * \note We also call _mesa_ResizeBuffersMESA() because this is a good * time to check if the window has been resized. Many device drivers * can't get direct notification from the window system of size changes * so this is an ad-hoc solution to that problem. + * + * \param ctx GL context. + * \param x, y coordinates of the lower left corner of the viewport rectangle. + * \param width width of the viewport rectangle. + * \param height height of the viewport rectangle. + * + * Verifies the parameters, clamps them to the implementation dependent range + * and updates __GLcontextRec::Viewport. Computes the scale and bias values for + * the drivers and notifies the driver via the dd_function_table::Viewport + * callback. */ void _mesa_set_viewport( GLcontext *ctx, GLint x, GLint y, @@ -448,8 +580,24 @@ _mesa_set_viewport( GLcontext *ctx, GLint x, GLint y, ctx->Viewport.Y = y; ctx->Viewport.Height = height; + /* Check if window/buffer has been resized and if so, reallocate the + * ancillary buffers. + */ +/* _mesa_ResizeBuffersMESA(); */ + + if (ctx->Driver.Viewport) { + (*ctx->Driver.Viewport)( ctx, x, y, width, height ); + } + + if (ctx->_RotateMode) { + GLint tmp, tmps; + tmp = x; x = y; y = tmp; + tmps = width; width = height; height = tmps; + } + /* compute scale and bias values :: This is really driver-specific - * and should be maintained elsewhere if at all. + * and should be maintained elsewhere if at all. NOTE: RasterPos + * uses this. */ ctx->Viewport._WindowMap.m[MAT_SX] = (GLfloat) width / 2.0F; ctx->Viewport._WindowMap.m[MAT_TX] = ctx->Viewport._WindowMap.m[MAT_SX] + x; @@ -475,7 +623,7 @@ _mesa_set_viewport( GLcontext *ctx, GLint x, GLint y, } - +#if _HAVE_FULL_GL void _mesa_DepthRange( GLclampd nearval, GLclampd farval ) { @@ -510,3 +658,280 @@ _mesa_DepthRange( GLclampd nearval, GLclampd farval ) (*ctx->Driver.DepthRange)( ctx, nearval, farval ); } } +#endif + + + +/**********************************************************************/ +/** \name State management */ +/*@{*/ + + +/** + * Update the projection matrix stack. + * + * \param ctx GL context. + * + * Calls _math_matrix_analyse() with the top-matrix of the projection matrix + * stack, and recomputes user clip positions if necessary. + * + * \note This routine references __GLcontextRec::Tranform attribute values to + * compute userclip positions in clip space, but is only called on + * _NEW_PROJECTION. The _mesa_ClipPlane() function keeps these values up to + * date across changes to the __GLcontextRec::Transform attributes. + */ +static void +update_projection( GLcontext *ctx ) +{ + _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); + +#if FEATURE_userclip + /* Recompute clip plane positions in clipspace. This is also done + * in _mesa_ClipPlane(). + */ + if (ctx->Transform.ClipPlanesEnabled) { + GLuint p; + for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { + if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { + _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], + ctx->Transform.EyeUserPlane[p], + ctx->ProjectionMatrixStack.Top->inv ); + } + } + } +#endif +} + + +/** + * Calculate the combined modelview-projection matrix. + * + * \param ctx GL context. + * + * Multiplies the top matrices of the projection and model view stacks into + * __GLcontextRec::_ModelProjectMatrix via _math_matrix_mul_matrix() and + * analyzes the resulting matrix via _math_matrix_analyse(). + */ +static void +calculate_model_project_matrix( GLcontext *ctx ) +{ + _math_matrix_mul_matrix( &ctx->_ModelProjectMatrix, + ctx->ProjectionMatrixStack.Top, + ctx->ModelviewMatrixStack.Top ); + + _math_matrix_analyse( &ctx->_ModelProjectMatrix ); +} + + +/** + * Updates the combined modelview-projection matrix. + * + * \param ctx GL context. + * \param new_state new state bit mask. + * + * If there is a new model view matrix then analyzes it. If there is a new + * projection matrix, updates it. Finally calls + * calculate_model_project_matrix() to recalculate the modelview-projection + * matrix. + */ +void _mesa_update_modelview_project( GLcontext *ctx, GLuint new_state ) +{ + if (new_state & _NEW_MODELVIEW) + _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); + + if (new_state & _NEW_PROJECTION) + update_projection( ctx ); + + /* Keep ModelviewProject uptodate always to allow tnl + * implementations that go model->clip even when eye is required. + */ + calculate_model_project_matrix(ctx); +} + +/*@}*/ + + +/**********************************************************************/ +/** Matrix stack initialization */ +/*@{*/ + + +/** + * Initialize a matrix stack. + * + * \param stack matrix stack. + * \param maxDepth maximum stack depth. + * \param dirtyFlag dirty flag. + * + * Allocates an array of \p maxDepth elements for the matrix stack and calls + * _math_matrix_ctr() and _math_matrix_alloc_inv() for each element to + * initialize it. + */ +static void +init_matrix_stack( struct matrix_stack *stack, + GLuint maxDepth, GLuint dirtyFlag ) +{ + GLuint i; + + stack->Depth = 0; + stack->MaxDepth = maxDepth; + stack->DirtyFlag = dirtyFlag; + /* The stack */ + stack->Stack = (GLmatrix *) CALLOC(maxDepth * sizeof(GLmatrix)); + for (i = 0; i < maxDepth; i++) { + _math_matrix_ctr(&stack->Stack[i]); + _math_matrix_alloc_inv(&stack->Stack[i]); + } + stack->Top = stack->Stack; +} + +/** + * Free matrix stack. + * + * \param stack matrix stack. + * + * Calls _math_matrix_dtr() for each element of the matrix stack and + * frees the array. + */ +static void +free_matrix_stack( struct matrix_stack *stack ) +{ + GLuint i; + for (i = 0; i < stack->MaxDepth; i++) { + _math_matrix_dtr(&stack->Stack[i]); + } + FREE(stack->Stack); + stack->Stack = stack->Top = NULL; +} + +/*@}*/ + + +/**********************************************************************/ +/** \name Initialization */ +/*@{*/ + + +/** + * Initialize the context matrix data. + * + * \param ctx GL context. + * + * Initializes each of the matrix stacks and the combined modelview-projection + * matrix. + */ +void _mesa_init_matrix( GLcontext * ctx ) +{ + GLint i; + + /* Initialize matrix stacks */ + init_matrix_stack(&ctx->ModelviewMatrixStack, MAX_MODELVIEW_STACK_DEPTH, + _NEW_MODELVIEW); + init_matrix_stack(&ctx->ProjectionMatrixStack, MAX_PROJECTION_STACK_DEPTH, + _NEW_PROJECTION); + init_matrix_stack(&ctx->ColorMatrixStack, MAX_COLOR_STACK_DEPTH, + _NEW_COLOR_MATRIX); + for (i = 0; i < MAX_TEXTURE_UNITS; i++) + init_matrix_stack(&ctx->TextureMatrixStack[i], MAX_TEXTURE_STACK_DEPTH, + _NEW_TEXTURE_MATRIX); + for (i = 0; i < MAX_PROGRAM_MATRICES; i++) + init_matrix_stack(&ctx->ProgramMatrixStack[i], + MAX_PROGRAM_MATRIX_STACK_DEPTH, _NEW_TRACK_MATRIX); + ctx->CurrentStack = &ctx->ModelviewMatrixStack; + + /* Init combined Modelview*Projection matrix */ + _math_matrix_ctr( &ctx->_ModelProjectMatrix ); +} + + +/** + * Free the context matrix data. + * + * \param ctx GL context. + * + * Frees each of the matrix stacks and the combined modelview-projection + * matrix. + */ +void _mesa_free_matrix_data( GLcontext *ctx ) +{ + GLint i; + + free_matrix_stack(&ctx->ModelviewMatrixStack); + free_matrix_stack(&ctx->ProjectionMatrixStack); + free_matrix_stack(&ctx->ColorMatrixStack); + for (i = 0; i < MAX_TEXTURE_UNITS; i++) + free_matrix_stack(&ctx->TextureMatrixStack[i]); + for (i = 0; i < MAX_PROGRAM_MATRICES; i++) + free_matrix_stack(&ctx->ProgramMatrixStack[i]); + /* combined Modelview*Projection matrix */ + _math_matrix_dtr( &ctx->_ModelProjectMatrix ); + +} + + +/** + * Initialize the context transform attribute group. + * + * \param ctx GL context. + * + * \todo Move this to a new file with other 'transform' routines. + */ +void _mesa_init_transform( GLcontext *ctx ) +{ + GLint i; + + /* Transformation group */ + ctx->Transform.MatrixMode = GL_MODELVIEW; + ctx->Transform.Normalize = GL_FALSE; + ctx->Transform.RescaleNormals = GL_FALSE; + ctx->Transform.RasterPositionUnclipped = GL_FALSE; + for (i=0;i<MAX_CLIP_PLANES;i++) { + ASSIGN_4V( ctx->Transform.EyeUserPlane[i], 0.0, 0.0, 0.0, 0.0 ); + } + ctx->Transform.ClipPlanesEnabled = 0; +} + + +/** + * Initialize the context viewport attribute group. + * + * \param ctx GL context. + * + * \todo Move this to a new file with other 'viewport' routines. + */ +void _mesa_init_viewport( GLcontext *ctx ) +{ + /* Viewport group */ + ctx->Viewport.X = 0; + ctx->Viewport.Y = 0; + ctx->Viewport.Width = 0; + ctx->Viewport.Height = 0; + ctx->Viewport.Near = 0.0; + ctx->Viewport.Far = 1.0; + _math_matrix_ctr(&ctx->Viewport._WindowMap); + +#define Sz 10 +#define Tz 14 + ctx->Viewport._WindowMap.m[Sz] = 0.5F * ctx->DepthMaxF; + ctx->Viewport._WindowMap.m[Tz] = 0.5F * ctx->DepthMaxF; +#undef Sz +#undef Tz + + ctx->Viewport._WindowMap.flags = MAT_FLAG_GENERAL_SCALE|MAT_FLAG_TRANSLATION; + ctx->Viewport._WindowMap.type = MATRIX_3D_NO_ROT; +} + + +/** + * Free the context viewport attribute group data. + * + * \param ctx GL context. + * + * \todo Move this to a new file with other 'viewport' routines. + */ +void _mesa_free_viewport_data( GLcontext *ctx ) +{ + _math_matrix_dtr(&ctx->Viewport._WindowMap); +} + +/*@}*/ diff --git a/src/mesa/main/matrix.h b/src/mesa/main/matrix.h index 13dc31eac49..b81ab848448 100644 --- a/src/mesa/main/matrix.h +++ b/src/mesa/main/matrix.h @@ -1,3 +1,7 @@ +/** + * \file matrix.h + * Matrix operations. + */ /* * Mesa 3-D graphics library @@ -105,4 +109,23 @@ extern void _mesa_DepthRange( GLclampd nearval, GLclampd farval ); +extern void +_mesa_init_matrix( GLcontext * ctx ); + +extern void +_mesa_init_transform( GLcontext *ctx ); + +extern void +_mesa_init_viewport( GLcontext *ctx ); + +extern void +_mesa_free_matrix_data( GLcontext *ctx ); + +extern void +_mesa_free_viewport_data( GLcontext *ctx ); + +extern void +_mesa_update_modelview_project( GLcontext *ctx, GLuint newstate ); + + #endif diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index c116228bf85..bac711de1ce 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1,3 +1,10 @@ +/** + * \file mtypes.h + * Main Mesa data structures. + * + * Please try to mark derived values with a leading underscore ('_'). + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -22,10 +29,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/** - * \file mtypes.h - * \brief Main Mesa data structures. - */ + #ifndef TYPES_H #define TYPES_H @@ -43,11 +47,8 @@ #endif -/* Please try to mark derived values with a leading underscore ('_'). - */ - -/* - * Color channel data type: +/** + * Color channel data type. */ #if CHAN_BITS == 8 typedef GLubyte GLchan; @@ -70,7 +71,7 @@ /** - * Accumulation buffer data type: + * Accumulation buffer data type. */ #if ACCUM_BITS==8 typedef GLbyte GLaccum; @@ -84,7 +85,7 @@ /** - * Stencil buffer data type: + * Stencil buffer data type. */ #if STENCIL_BITS==8 typedef GLubyte GLstencil; @@ -98,13 +99,15 @@ /** - * Depth buffer data type: + * Depth buffer data type. + * + * \note Must be 32-bits! */ -typedef GLuint GLdepth; /* Must be 32-bits! */ +typedef GLuint GLdepth; /** - * Fixed point data type: + * Fixed point data type. */ typedef int GLfixed; /* @@ -138,38 +141,45 @@ typedef int GLfixed; /** - * Some forward type declarations + * \name Some forward type declarations */ +/*@{*/ struct _mesa_HashTable; struct gl_texture_image; struct gl_texture_object; typedef struct __GLcontextRec GLcontext; typedef struct __GLcontextModesRec GLvisual; typedef struct gl_frame_buffer GLframebuffer; +/*@}*/ -/* These define the aliases between numbered vertex attributes and +/** + * These define the aliases between numbered vertex attributes and * conventional OpenGL vertex attributes. We use these values in - * quite a few places. New in Mesa 4.1. - */ -#define VERT_ATTRIB_POS 0 -#define VERT_ATTRIB_WEIGHT 1 -#define VERT_ATTRIB_NORMAL 2 -#define VERT_ATTRIB_COLOR0 3 -#define VERT_ATTRIB_COLOR1 4 -#define VERT_ATTRIB_FOG 5 -#define VERT_ATTRIB_SIX 6 -#define VERT_ATTRIB_SEVEN 7 -#define VERT_ATTRIB_TEX0 8 -#define VERT_ATTRIB_TEX1 9 -#define VERT_ATTRIB_TEX2 10 -#define VERT_ATTRIB_TEX3 11 -#define VERT_ATTRIB_TEX4 12 -#define VERT_ATTRIB_TEX5 13 -#define VERT_ATTRIB_TEX6 14 -#define VERT_ATTRIB_TEX7 15 -#define VERT_ATTRIB_MAX 16 + * quite a few places. + * + * New in Mesa 4.1. + */ +enum { + VERT_ATTRIB_POS = 0, + VERT_ATTRIB_WEIGHT = 1, + VERT_ATTRIB_NORMAL = 2, + VERT_ATTRIB_COLOR0 = 3, + VERT_ATTRIB_COLOR1 = 4, + VERT_ATTRIB_FOG = 5, + VERT_ATTRIB_SIX = 6, + VERT_ATTRIB_SEVEN = 7, + VERT_ATTRIB_TEX0 = 8, + VERT_ATTRIB_TEX1 = 9, + VERT_ATTRIB_TEX2 = 10, + VERT_ATTRIB_TEX3 = 11, + VERT_ATTRIB_TEX4 = 12, + VERT_ATTRIB_TEX5 = 13, + VERT_ATTRIB_TEX6 = 14, + VERT_ATTRIB_TEX7 = 15, + VERT_ATTRIB_MAX = 16 +} ; /* These are used in bitfields in many places */ #define VERT_BIT_POS (1 << VERT_ATTRIB_POS) @@ -194,19 +204,22 @@ typedef struct gl_frame_buffer GLframebuffer; /** - * Maximum number of temporary vertices required for clipping. (Used - * in array_cache and tnl modules). + * Maximum number of temporary vertices required for clipping. + * + * Used in array_cache and tnl modules. */ #define MAX_CLIPPED_VERTICES ((2 * (6 + MAX_CLIP_PLANES))+1) -/* Data structure for color tables */ +/** + * Data structure for color tables + */ struct gl_color_table { - GLenum Format; /* GL_ALPHA, GL_RGB, GL_RGB, etc */ + GLenum Format; /**< GL_ALPHA, GL_RGB, GL_RGB, etc */ GLenum IntFormat; - GLuint Size; /* number of entries (rows) in table */ - GLvoid *Table; /* either GLfloat * or GLchan * */ - GLboolean FloatTable; /* are entries stored as floats? */ + GLuint Size; /**< number of entries (rows) in table */ + GLvoid *Table; /**< either GLfloat * or GLchan * */ + GLboolean FloatTable; /**< are entries stored as floats? */ GLubyte RedSize; GLubyte GreenSize; GLubyte BlueSize; @@ -216,9 +229,10 @@ struct gl_color_table { }; -/* - * Bit flags used for updating material values. +/** + * \name Bit flags used for updating material values. */ +/*@{*/ #define FRONT_AMBIENT_BIT 0x1 #define BACK_AMBIENT_BIT 0x2 #define FRONT_DIFFUSE_BIT 0x4 @@ -241,15 +255,15 @@ struct gl_color_table { BACK_SHININESS_BIT | BACK_INDEXES_BIT) #define ALL_MATERIAL_BITS (FRONT_MATERIAL_BITS | BACK_MATERIAL_BITS) +/*@}*/ +#define EXP_TABLE_SIZE 512 /**< Specular exponent lookup table sizes */ +#define SHINE_TABLE_SIZE 256 /**< Material shininess lookup table sizes */ -/* - * Specular exponent and material shininess lookup table sizes: +/** + * Material shininess lookup table. */ -#define EXP_TABLE_SIZE 512 -#define SHINE_TABLE_SIZE 256 - struct gl_shine_tab { struct gl_shine_tab *next, *prev; GLfloat tab[SHINE_TABLE_SIZE+1]; @@ -258,50 +272,63 @@ struct gl_shine_tab { }; +/** + * Light. + */ struct gl_light { - struct gl_light *next; /* double linked list with sentinel */ + struct gl_light *next; /**< double linked list with sentinel */ struct gl_light *prev; - GLfloat Ambient[4]; /* ambient color */ - GLfloat Diffuse[4]; /* diffuse color */ - GLfloat Specular[4]; /* specular color */ - GLfloat EyePosition[4]; /* position in eye coordinates */ - GLfloat EyeDirection[4]; /* spotlight dir in eye coordinates */ + GLfloat Ambient[4]; /**< ambient color */ + GLfloat Diffuse[4]; /**< diffuse color */ + GLfloat Specular[4]; /**< specular color */ + GLfloat EyePosition[4]; /**< position in eye coordinates */ + GLfloat EyeDirection[4]; /**< spotlight dir in eye coordinates */ GLfloat SpotExponent; - GLfloat SpotCutoff; /* in degress */ - GLfloat _CosCutoff; /* = MAX(0, cos(SpotCutoff)) */ + GLfloat SpotCutoff; /**< in degrees */ + GLfloat _CosCutoff; /**< = MAX(0, cos(SpotCutoff)) */ GLfloat ConstantAttenuation; GLfloat LinearAttenuation; GLfloat QuadraticAttenuation; - GLboolean Enabled; /* On/off flag */ + GLboolean Enabled; /**< On/off flag */ - /* Derived fields */ - GLuint _Flags; /* State */ + /** + * \name Derived fields + */ + /*@{*/ + GLuint _Flags; /**< State */ - GLfloat _Position[4]; /* position in eye/obj coordinates */ - GLfloat _VP_inf_norm[3]; /* Norm direction to infinite light */ - GLfloat _h_inf_norm[3]; /* Norm( _VP_inf_norm + <0,0,1> ) */ - GLfloat _NormDirection[4]; /* normalized spotlight direction */ + GLfloat _Position[4]; /**< position in eye/obj coordinates */ + GLfloat _VP_inf_norm[3]; /**< Norm direction to infinite light */ + GLfloat _h_inf_norm[3]; /**< Norm( _VP_inf_norm + <0,0,1> ) */ + GLfloat _NormDirection[4]; /**< normalized spotlight direction */ GLfloat _VP_inf_spot_attenuation; - GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /* to replace a pow() call */ - GLfloat _MatAmbient[2][3]; /* material ambient * light ambient */ - GLfloat _MatDiffuse[2][3]; /* material diffuse * light diffuse */ - GLfloat _MatSpecular[2][3]; /* material spec * light specular */ - GLfloat _dli; /* CI diffuse light intensity */ - GLfloat _sli; /* CI specular light intensity */ + GLfloat _SpotExpTable[EXP_TABLE_SIZE][2]; /**< to replace a pow() call */ + GLfloat _MatAmbient[2][3]; /**< material ambient * light ambient */ + GLfloat _MatDiffuse[2][3]; /**< material diffuse * light diffuse */ + GLfloat _MatSpecular[2][3]; /**< material spec * light specular */ + GLfloat _dli; /**< CI diffuse light intensity */ + GLfloat _sli; /**< CI specular light intensity */ + /*@}*/ }; +/** + * Light model. + */ struct gl_lightmodel { - GLfloat Ambient[4]; /* ambient color */ - GLboolean LocalViewer; /* Local (or infinite) view point? */ - GLboolean TwoSide; /* Two (or one) sided lighting? */ - GLenum ColorControl; /* either GL_SINGLE_COLOR */ - /* or GL_SEPARATE_SPECULAR_COLOR */ + GLfloat Ambient[4]; /**< ambient color */ + GLboolean LocalViewer; /**< Local (or infinite) view point? */ + GLboolean TwoSide; /**< Two (or one) sided lighting? */ + GLenum ColorControl; /**< either GL_SINGLE_COLOR + * or GL_SEPARATE_SPECULAR_COLOR */ }; +/** + * Material. + */ struct gl_material { GLfloat Ambient[4]; @@ -309,25 +336,27 @@ struct gl_material GLfloat Specular[4]; GLfloat Emission[4]; GLfloat Shininess; - GLfloat AmbientIndex; /* for color index lighting */ - GLfloat DiffuseIndex; /* for color index lighting */ - GLfloat SpecularIndex; /* for color index lighting */ + GLfloat AmbientIndex; /**< for color index lighting */ + GLfloat DiffuseIndex; /**< for color index lighting */ + GLfloat SpecularIndex; /**< for color index lighting */ }; -/* - * Attribute structures: - * We define a struct for each attribute group to make pushing and - * popping attributes easy. Also it's a good organization. +/** + * Accumulation buffer attributes. */ struct gl_accum_attrib { - GLfloat ClearColor[4]; /* Accumulation buffer clear color */ + GLfloat ClearColor[4]; /**< Accumulation buffer clear color */ }; -/* - * Used in _DrawDestMask and _ReadSrcMask below to identify color buffers. +/** + * \name Clipping planes bits + * + * Used in gl_colorbuffer_attrib::_DrawDestMask and + * gl_colorbuffer_attrib::_ReadSrcMask below to identify color buffers. */ +/*@{*/ #define FRONT_LEFT_BIT 0x1 #define FRONT_RIGHT_BIT 0x2 #define BACK_LEFT_BIT 0x4 @@ -336,72 +365,106 @@ struct gl_accum_attrib { #define AUX1_BIT 0x20 #define AUX2_BIT 0x40 #define AUX3_BIT 0x80 +/*@}*/ + +/** + * Color buffers attributes. + */ struct gl_colorbuffer_attrib { - GLuint ClearIndex; /* Index to use for glClear */ - GLclampf ClearColor[4]; /* Color to use for glClear */ - - GLuint IndexMask; /* Color index write mask */ - GLubyte ColorMask[4]; /* Each flag is 0xff or 0x0 */ - - GLenum DrawBuffer; /* Which buffer to draw into */ - GLubyte _DrawDestMask; /* bitwise-OR of FRONT/BACK_LEFT/RIGHT_BITs */ - - /* alpha testing */ - GLboolean AlphaEnabled; /* Alpha test enabled flag */ - GLenum AlphaFunc; /* Alpha test function */ - GLclampf AlphaRef; - - /* blending */ - GLboolean BlendEnabled; /* Blending enabled flag */ - GLenum BlendSrcRGB; /* Blending source operator */ - GLenum BlendDstRGB; /* Blending destination operator */ - GLenum BlendSrcA; /* GL_INGR_blend_func_separate */ - GLenum BlendDstA; /* GL_INGR_blend_func_separate */ - GLenum BlendEquation; - GLfloat BlendColor[4]; - - /* logic op */ - GLenum LogicOp; /* Logic operator */ - GLboolean IndexLogicOpEnabled; /* Color index logic op enabled flag */ - GLboolean ColorLogicOpEnabled; /* RGBA logic op enabled flag */ - - GLboolean DitherFlag; /* Dither enable flag */ + GLuint ClearIndex; /**< Index to use for glClear */ + GLclampf ClearColor[4]; /**< Color to use for glClear */ + + GLuint IndexMask; /**< Color index write mask */ + GLubyte ColorMask[4]; /**< Each flag is 0xff or 0x0 */ + + GLenum DrawBuffer; /**< Which buffer to draw into */ + GLubyte _DrawDestMask; /**< bitwise-OR of FRONT/BACK_LEFT/RIGHT_BITs */ + + /** + * \name alpha testing + */ + /*@{*/ + GLboolean AlphaEnabled; /**< Alpha test enabled flag */ + GLenum AlphaFunc; /**< Alpha test function */ + GLclampf AlphaRef; /**< Alpha reference value */ + /*@}*/ + + /** + * \name Blending + */ + /*@{*/ + GLboolean BlendEnabled; /**< Blending enabled flag */ + GLenum BlendSrcRGB; /**< Blending source operator */ + GLenum BlendDstRGB; /**< Blending destination operator */ + GLenum BlendSrcA; /**< GL_INGR_blend_func_separate */ + GLenum BlendDstA; /**< GL_INGR_blend_func_separate */ + GLenum BlendEquation; /**< Blending equation */ + GLfloat BlendColor[4]; /**< Blending color */ + /*@}*/ + + /** + * \name Logic op + */ + /*@{*/ + GLenum LogicOp; /**< Logic operator */ + GLboolean IndexLogicOpEnabled; /**< Color index logic op enabled flag */ + GLboolean ColorLogicOpEnabled; /**< RGBA logic op enabled flag */ + /*@}*/ + + GLboolean DitherFlag; /**< Dither enable flag */ }; +/** + * Current attributes. + */ struct gl_current_attrib { - /* These values valid only when FLUSH_VERTICES has been called. + /** + * \name Values valid only when FLUSH_VERTICES has been called. */ - GLfloat Attrib[VERT_ATTRIB_MAX][4]; /* Current vertex attributes */ - /* indexed by VERT_ATTRIB_* */ - GLuint Index; /* Current color index */ - GLboolean EdgeFlag; /* Current edge flag */ + /*@{*/ + GLfloat Attrib[VERT_ATTRIB_MAX][4]; /**< Current vertex attributes + * indexed by VERT_ATTRIB_* */ + GLuint Index; /**< Current color index */ + GLboolean EdgeFlag; /**< Current edge flag */ + /*@}*/ - /* These values are always valid. BTW, note how similar this set of - * attributes is to the SWvertex datatype in the software rasterizer... + /** + * \name Values are always valid. + * + * \note BTW, note how similar this set of attributes is to the SWvertex data type + * in the software rasterizer... */ - GLfloat RasterPos[4]; /* Current raster position */ - GLfloat RasterDistance; /* Current raster distance */ - GLfloat RasterColor[4]; /* Current raster color */ - GLfloat RasterSecondaryColor[4]; /* Current rast 2ndary color */ - GLuint RasterIndex; /* Current raster index */ - GLfloat RasterTexCoords[MAX_TEXTURE_COORD_UNITS][4]; - GLboolean RasterPosValid; /* Raster pos valid flag */ + /*@{*/ + GLfloat RasterPos[4]; /**< Current raster position */ + GLfloat RasterDistance; /**< Current raster distance */ + GLfloat RasterColor[4]; /**< Current raster color */ + GLfloat RasterSecondaryColor[4]; /**< Current raster secondary color */ + GLuint RasterIndex; /**< Current raster index */ + GLfloat RasterTexCoords[MAX_TEXTURE_UNITS][4];/**< Current raster texcoords */ + GLboolean RasterPosValid; /**< Raster pos valid flag */ + /*@}*/ }; +/** + * Depth buffer attributes. + */ struct gl_depthbuffer_attrib { - GLenum Func; /* Function for depth buffer compare */ - GLfloat Clear; /* Value to clear depth buffer to */ - GLboolean Test; /* Depth buffering enabled flag */ - GLboolean Mask; /* Depth buffer writable? */ - GLboolean OcclusionTest; /* GL_HP_occlusion_test */ - GLboolean BoundsTest; /* GL_EXT_depth_bounds_test */ - GLfloat BoundsMin, BoundsMax;/* GL_EXT_depth_bounds_test */ + GLenum Func; /**< Function for depth buffer compare */ + GLfloat Clear; /**< Value to clear depth buffer to */ + GLboolean Test; /**< Depth buffering enabled flag */ + GLboolean Mask; /**< Depth buffer writable? */ + GLboolean OcclusionTest; /**< GL_HP_occlusion_test */ + GLboolean BoundsTest; /**< GL_EXT_depth_bounds_test */ + GLfloat BoundsMin, BoundsMax;/**< GL_EXT_depth_bounds_test */ }; +/** + * glEnable()/glDisable() attributes. + */ struct gl_enable_attrib { GLboolean AlphaTest; GLboolean AutoNormal; @@ -476,8 +539,14 @@ struct gl_enable_attrib { }; +/** + * Eval attributes. + */ struct gl_eval_attrib { - /* Enable bits */ + /** + * \name Enable bits + */ + /*@{*/ GLboolean Map1Color4; GLboolean Map1Index; GLboolean Map1Normal; @@ -499,47 +568,63 @@ struct gl_eval_attrib { GLboolean Map2Vertex4; GLboolean Map2Attrib[16]; /* GL_NV_vertex_program */ GLboolean AutoNormal; - /* Map Grid endpoints and divisions and calculated du values */ + /*@}*/ + + /** + * \name Map Grid endpoints and divisions and calculated du values + */ + /*@{*/ GLint MapGrid1un; GLfloat MapGrid1u1, MapGrid1u2, MapGrid1du; GLint MapGrid2un, MapGrid2vn; GLfloat MapGrid2u1, MapGrid2u2, MapGrid2du; GLfloat MapGrid2v1, MapGrid2v2, MapGrid2dv; + /*@}*/ }; +/** + * Fog attributes. + */ struct gl_fog_attrib { - GLboolean Enabled; /* Fog enabled flag */ - GLfloat Color[4]; /* Fog color */ - GLfloat Density; /* Density >= 0.0 */ - GLfloat Start; /* Start distance in eye coords */ - GLfloat End; /* End distance in eye coords */ - GLfloat Index; /* Fog index */ - GLenum Mode; /* Fog mode */ + GLboolean Enabled; /**< Fog enabled flag */ + GLfloat Color[4]; /**< Fog color */ + GLfloat Density; /**< Density >= 0.0 */ + GLfloat Start; /**< Start distance in eye coords */ + GLfloat End; /**< End distance in eye coords */ + GLfloat Index; /**< Fog index */ + GLenum Mode; /**< Fog mode */ GLboolean ColorSumEnabled; - GLenum FogCoordinateSource; /* GL_EXT_fog_coord */ + GLenum FogCoordinateSource; /**< GL_EXT_fog_coord */ }; +/** + * Hint attributes. + * + * Values are always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE. + */ struct gl_hint_attrib { - /* always one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE */ GLenum PerspectiveCorrection; GLenum PointSmooth; GLenum LineSmooth; GLenum PolygonSmooth; GLenum Fog; - GLenum ClipVolumeClipping; /* GL_EXT_clip_volume_hint */ - GLenum TextureCompression; /* GL_ARB_texture_compression */ - GLenum GenerateMipmap; /* GL_SGIS_generate_mipmap */ + GLenum ClipVolumeClipping; /**< GL_EXT_clip_volume_hint */ + GLenum TextureCompression; /**< GL_ARB_texture_compression */ + GLenum GenerateMipmap; /**< GL_SGIS_generate_mipmap */ }; +/** + * Histogram attributes. + */ struct gl_histogram_attrib { - GLuint Width; /* number of table entries */ - GLint Format; /* GL_ALPHA, GL_RGB, etc */ - GLuint Count[HISTOGRAM_TABLE_SIZE][4]; /* the histogram */ - GLboolean Sink; /* terminate image transfer? */ - GLubyte RedSize; /* Bits per counter */ + GLuint Width; /**< number of table entries */ + GLint Format; /**< GL_ALPHA, GL_RGB, etc */ + GLuint Count[HISTOGRAM_TABLE_SIZE][4]; /**< the histogram */ + GLboolean Sink; /**< terminate image transfer? */ + GLubyte RedSize; /**< Bits per counter */ GLubyte GreenSize; GLubyte BlueSize; GLubyte AlphaSize; @@ -550,7 +635,7 @@ struct gl_histogram_attrib { struct gl_minmax_attrib { GLenum Format; GLboolean Sink; - GLfloat Min[4], Max[4]; /* RGBA */ + GLfloat Min[4], Max[4]; /**< RGBA */ }; @@ -568,37 +653,51 @@ struct gl_convolution_attrib { #define LIGHT_POSITIONAL 0x4 #define LIGHT_NEED_VERTICES (LIGHT_POSITIONAL|LIGHT_LOCAL_VIEWER) +/** + * Lighting attributes. + */ struct gl_light_attrib { - struct gl_light Light[MAX_LIGHTS]; /* Array of lights */ - struct gl_lightmodel Model; /* Lighting model */ + struct gl_light Light[MAX_LIGHTS]; /**< Array of lights */ + struct gl_lightmodel Model; /**< Lighting model */ - /* Must flush FLUSH_VERTICES before referencing: + /** + * Must flush FLUSH_VERTICES before referencing: */ - struct gl_material Material[2]; /* Material 0=front, 1=back */ - - GLboolean Enabled; /* Lighting enabled flag */ - GLenum ShadeModel; /* GL_FLAT or GL_SMOOTH */ - GLenum ColorMaterialFace; /* GL_FRONT, BACK or FRONT_AND_BACK */ - GLenum ColorMaterialMode; /* GL_AMBIENT, GL_DIFFUSE, etc */ - GLuint ColorMaterialBitmask; /* bitmask formed from Face and Mode */ + /*@{*/ + struct gl_material Material[2]; /**< Material 0=front, 1=back */ + /*@}*/ + + GLboolean Enabled; /**< Lighting enabled flag */ + GLenum ShadeModel; /**< GL_FLAT or GL_SMOOTH */ + GLenum ColorMaterialFace; /**< GL_FRONT, BACK or FRONT_AND_BACK */ + GLenum ColorMaterialMode; /**< GL_AMBIENT, GL_DIFFUSE, etc */ + GLuint ColorMaterialBitmask; /**< bitmask formed from Face and Mode */ GLboolean ColorMaterialEnabled; - struct gl_light EnabledList; /* List sentinel */ + struct gl_light EnabledList; /**< List sentinel */ - /* Derived for optimizations: */ - GLboolean _NeedVertices; /* Use fast shader? */ - GLuint _Flags; /* LIGHT_* flags, see above */ + /** + * Derived for optimizations: + */ + /*@{*/ + GLboolean _NeedEyeCoords; + GLboolean _NeedVertices; /**< Use fast shader? */ + GLuint _Flags; /**< LIGHT_* flags, see above */ GLfloat _BaseColor[2][3]; + /*@}*/ }; +/** + * Line attributes. + */ struct gl_line_attrib { - GLboolean SmoothFlag; /* GL_LINE_SMOOTH enabled? */ - GLboolean StippleFlag; /* GL_LINE_STIPPLE enabled? */ - GLushort StipplePattern; /* Stipple pattern */ - GLint StippleFactor; /* Stipple repeat factor */ - GLfloat Width; /* Line width */ - GLfloat _Width; /* Clamped Line width */ + GLboolean SmoothFlag; /**< GL_LINE_SMOOTH enabled? */ + GLboolean StippleFlag; /**< GL_LINE_STIPPLE enabled? */ + GLushort StipplePattern; /**< Stipple pattern */ + GLint StippleFactor; /**< Stipple repeat factor */ + GLfloat Width; /**< Line width */ + GLfloat _Width; /**< Clamped Line width */ }; @@ -632,11 +731,15 @@ struct gl_multisample_attrib { }; +/** + * Pixel attributes. + */ struct gl_pixel_attrib { - GLenum ReadBuffer; /* src buffer for glRead/CopyPixels */ - GLubyte _ReadSrcMask; /* Not really a mask, but like _DrawDestMask */ - /* May be: FRONT_LEFT_BIT, BACK_LEFT_BIT, */ - /* FRONT_RIGHT_BIT or BACK_RIGHT_BIT. */ + GLenum ReadBuffer; /**< source buffer for glReadPixels()/glCopyPixels() */ + GLubyte _ReadSrcMask; /**< Not really a mask, but like _DrawDestMask + * + * May be: FRONT_LEFT_BIT, BACK_LEFT_BIT, + * FRONT_RIGHT_BIT or BACK_RIGHT_BIT. */ GLfloat RedBias, RedScale; GLfloat GreenBias, GreenScale; GLfloat BlueBias, BlueScale; @@ -647,7 +750,7 @@ struct gl_pixel_attrib { GLboolean MapStencilFlag; GLfloat ZoomX, ZoomY; /* XXX move these out of gl_pixel_attrib */ - GLint MapStoSsize; /* Size of each pixel map */ + GLint MapStoSsize; /**< Size of each pixel map */ GLint MapItoIsize; GLint MapItoRsize; GLint MapItoGsize; @@ -657,13 +760,13 @@ struct gl_pixel_attrib { GLint MapGtoGsize; GLint MapBtoBsize; GLint MapAtoAsize; - GLint MapStoS[MAX_PIXEL_MAP_TABLE]; /* Pixel map tables */ + GLint MapStoS[MAX_PIXEL_MAP_TABLE]; /**< Pixel map tables */ GLint MapItoI[MAX_PIXEL_MAP_TABLE]; GLfloat MapItoR[MAX_PIXEL_MAP_TABLE]; GLfloat MapItoG[MAX_PIXEL_MAP_TABLE]; GLfloat MapItoB[MAX_PIXEL_MAP_TABLE]; GLfloat MapItoA[MAX_PIXEL_MAP_TABLE]; - GLubyte MapItoR8[MAX_PIXEL_MAP_TABLE]; /* converted to 8-bit color */ + GLubyte MapItoR8[MAX_PIXEL_MAP_TABLE]; /**< converted to 8-bit color */ GLubyte MapItoG8[MAX_PIXEL_MAP_TABLE]; GLubyte MapItoB8[MAX_PIXEL_MAP_TABLE]; GLubyte MapItoA8[MAX_PIXEL_MAP_TABLE]; @@ -671,17 +774,17 @@ struct gl_pixel_attrib { GLfloat MapGtoG[MAX_PIXEL_MAP_TABLE]; GLfloat MapBtoB[MAX_PIXEL_MAP_TABLE]; GLfloat MapAtoA[MAX_PIXEL_MAP_TABLE]; - /* GL_EXT_histogram */ + /** GL_EXT_histogram */ GLboolean HistogramEnabled; GLboolean MinMaxEnabled; - /* GL_SGIS_pixel_texture */ + /** GL_SGIS_pixel_texture */ GLboolean PixelTextureEnabled; GLenum FragmentRgbSource; GLenum FragmentAlphaSource; - /* GL_SGI_color_matrix */ - GLfloat PostColorMatrixScale[4]; /* RGBA */ - GLfloat PostColorMatrixBias[4]; /* RGBA */ - /* GL_SGI_color_table */ + /** GL_SGI_color_matrix */ + GLfloat PostColorMatrixScale[4]; /**< RGBA */ + GLfloat PostColorMatrixBias[4]; /**< RGBA */ + /** GL_SGI_color_table */ GLfloat ColorTableScale[4]; GLfloat ColorTableBias[4]; GLboolean ColorTableEnabled; @@ -691,10 +794,10 @@ struct gl_pixel_attrib { GLfloat PCMCTscale[4]; GLfloat PCMCTbias[4]; GLboolean PostColorMatrixColorTableEnabled; - /* GL_SGI_texture_color_table */ + /** GL_SGI_texture_color_table */ GLfloat TextureColorTableScale[4]; GLfloat TextureColorTableBias[4]; - /* Convolution */ + /** Convolution */ GLboolean Convolution1DEnabled; GLboolean Convolution2DEnabled; GLboolean Separable2DEnabled; @@ -702,61 +805,73 @@ struct gl_pixel_attrib { GLenum ConvolutionBorderMode[3]; GLfloat ConvolutionFilterScale[3][4]; GLfloat ConvolutionFilterBias[3][4]; - GLfloat PostConvolutionScale[4]; /* RGBA */ - GLfloat PostConvolutionBias[4]; /* RGBA */ + GLfloat PostConvolutionScale[4]; /**< RGBA */ + GLfloat PostConvolutionBias[4]; /**< RGBA */ }; +/** + * Point attributes. + */ struct gl_point_attrib { - GLboolean SmoothFlag; /* True if GL_POINT_SMOOTH is enabled */ - GLfloat Size; /* User-specified point size */ - GLfloat _Size; /* Size clamped to Const.Min/MaxPointSize */ - GLfloat Params[3]; /* GL_EXT_point_parameters */ - GLfloat MinSize, MaxSize; /* GL_EXT_point_parameters */ - GLfloat Threshold; /* GL_EXT_point_parameters */ - GLboolean _Attenuated; /* True if Params != [1, 0, 0] */ - GLboolean PointSprite; /* GL_NV_point_sprite */ - GLboolean CoordReplace[MAX_TEXTURE_COORD_UNITS]; /* GL_NV_point_sprite */ - GLenum SpriteRMode; /* GL_NV_point_sprite */ + GLboolean SmoothFlag; /**< True if GL_POINT_SMOOTH is enabled */ + GLfloat Size; /**< User-specified point size */ + GLfloat _Size; /**< Size clamped to Const.Min/MaxPointSize */ + GLfloat Params[3]; /**< GL_EXT_point_parameters */ + GLfloat MinSize, MaxSize; /**< GL_EXT_point_parameters */ + GLfloat Threshold; /**< GL_EXT_point_parameters */ + GLboolean _Attenuated; /**< True if Params != [1, 0, 0] */ + GLboolean PointSprite; /**< GL_NV_point_sprite */ + GLboolean CoordReplace[MAX_TEXTURE_UNITS]; /**< GL_NV_point_sprite */ + GLenum SpriteRMode; /**< GL_NV_point_sprite */ }; +/** + * Polygon attributes. + */ struct gl_polygon_attrib { - GLenum FrontFace; /* Either GL_CW or GL_CCW */ - GLenum FrontMode; /* Either GL_POINT, GL_LINE or GL_FILL */ - GLenum BackMode; /* Either GL_POINT, GL_LINE or GL_FILL */ - GLboolean _FrontBit; /* 0=GL_CCW, 1=GL_CW */ - GLboolean CullFlag; /* Culling on/off flag */ - GLboolean SmoothFlag; /* True if GL_POLYGON_SMOOTH is enabled */ - GLboolean StippleFlag; /* True if GL_POLYGON_STIPPLE is enabled */ - GLenum CullFaceMode; /* Culling mode GL_FRONT or GL_BACK */ - GLfloat OffsetFactor; /* Polygon offset factor, from user */ - GLfloat OffsetUnits; /* Polygon offset units, from user */ - GLboolean OffsetPoint; /* Offset in GL_POINT mode */ - GLboolean OffsetLine; /* Offset in GL_LINE mode */ - GLboolean OffsetFill; /* Offset in GL_FILL mode */ + GLenum FrontFace; /**< Either GL_CW or GL_CCW */ + GLenum FrontMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ + GLenum BackMode; /**< Either GL_POINT, GL_LINE or GL_FILL */ + GLboolean _FrontBit; /**< 0=GL_CCW, 1=GL_CW */ + GLboolean CullFlag; /**< Culling on/off flag */ + GLboolean SmoothFlag; /**< True if GL_POLYGON_SMOOTH is enabled */ + GLboolean StippleFlag; /**< True if GL_POLYGON_STIPPLE is enabled */ + GLenum CullFaceMode; /**< Culling mode GL_FRONT or GL_BACK */ + GLfloat OffsetFactor; /**< Polygon offset factor, from user */ + GLfloat OffsetUnits; /**< Polygon offset units, from user */ + GLboolean OffsetPoint; /**< Offset in GL_POINT mode */ + GLboolean OffsetLine; /**< Offset in GL_LINE mode */ + GLboolean OffsetFill; /**< Offset in GL_FILL mode */ }; +/** + * Scissor attributes. + */ struct gl_scissor_attrib { - GLboolean Enabled; /* Scissor test enabled? */ - GLint X, Y; /* Lower left corner of box */ - GLsizei Width, Height; /* Size of box */ + GLboolean Enabled; /**< Scissor test enabled? */ + GLint X, Y; /**< Lower left corner of box */ + GLsizei Width, Height; /**< Size of box */ }; +/** + * Stencil attributes. + */ struct gl_stencil_attrib { - GLboolean Enabled; /* Enabled flag */ - GLboolean TestTwoSide; /* GL_EXT_stencil_two_side */ - GLubyte ActiveFace; /* GL_EXT_stencil_two_side (0 or 1) */ - GLenum Function[2]; /* Stencil function */ - GLenum FailFunc[2]; /* Fail function */ - GLenum ZPassFunc[2]; /* Depth buffer pass function */ - GLenum ZFailFunc[2]; /* Depth buffer fail function */ - GLstencil Ref[2]; /* Reference value */ - GLstencil ValueMask[2]; /* Value mask */ - GLstencil WriteMask[2]; /* Write mask */ - GLstencil Clear; /* Clear value */ + GLboolean Enabled; /**< Enabled flag */ + GLboolean TestTwoSide; /**< GL_EXT_stencil_two_side */ + GLubyte ActiveFace; /**< GL_EXT_stencil_two_side (0 or 1) */ + GLenum Function[2]; /**< Stencil function */ + GLenum FailFunc[2]; /**< Fail function */ + GLenum ZPassFunc[2]; /**< Depth buffer pass function */ + GLenum ZFailFunc[2]; /**< Depth buffer fail function */ + GLstencil Ref[2]; /**< Reference value */ + GLstencil ValueMask[2]; /**< Value mask */ + GLstencil WriteMask[2]; /**< Write mask */ + GLstencil Clear; /**< Clear value */ }; @@ -819,147 +934,187 @@ struct gl_stencil_attrib { #define ENABLE_TEXGEN(i) (ENABLE_TEXGEN0 << (i)) #define ENABLE_TEXMAT(i) (ENABLE_TEXMAT0 << (i)) -/* - * If teximage is color-index, texelOut returns GLchan[1]. - * If teximage is depth, texelOut returns GLfloat[1]. - * Otherwise, texelOut returns GLchan[4]. +/** + * Texel fetch function prototype. + * + * \param texImage texture image. + * \param col texel column. + * \param row texel row. + * \param img texel level. + * \param texelOut output texel. If \p texImage is color-index, \p texelOut + * returns <tt>GLchan[1]</tt>. If \p texImage is depth, \p texelOut returns + * <tt>GLfloat[1]</tt>. Otherwise, \p texelOut returns <tt>GLchan[4]</tt>. */ typedef void (*FetchTexelFunc)( const struct gl_texture_image *texImage, GLint col, GLint row, GLint img, GLvoid *texelOut ); -/* Texture format record */ +/** + * Texture format record + */ struct gl_texture_format { - GLint MesaFormat; /* One of the MESA_FORMAT_* values */ + GLint MesaFormat; /**< One of the MESA_FORMAT_* values */ - GLenum BaseFormat; /* Either GL_ALPHA, GL_INTENSITY, GL_LUMINANCE, - * GL_LUMINANCE_ALPHA, GL_RGB, GL_RGBA, - * GL_COLOR_INDEX or GL_DEPTH_COMPONENT. + GLenum BaseFormat; /**< Either GL_ALPHA, GL_INTENSITY, GL_LUMINANCE, + * GL_LUMINANCE_ALPHA, GL_RGB, GL_RGBA, + * GL_COLOR_INDEX or GL_DEPTH_COMPONENT. */ - GLubyte RedBits; /* Bits per texel component */ - GLubyte GreenBits; /* These are just rough approximations for */ - GLubyte BlueBits; /* compressed texture formats. */ + GLubyte RedBits; /**< Bits per texel component */ + GLubyte GreenBits; /**< These are just rough approximations for */ + GLubyte BlueBits; /**< compressed texture formats. */ GLubyte AlphaBits; GLubyte LuminanceBits; GLubyte IntensityBits; GLubyte IndexBits; GLubyte DepthBits; - GLint TexelBytes; /* Bytes per texel (0 for compressed formats */ + GLint TexelBytes; /**< Bytes per texel (0 for compressed formats */ - FetchTexelFunc FetchTexel1D; /* Texel fetch function pointers */ + /** + * \name Texel fetch function pointers + */ + /*@{*/ + FetchTexelFunc FetchTexel1D; FetchTexelFunc FetchTexel2D; FetchTexelFunc FetchTexel3D; + /*@}*/ }; -/* Texture image record */ +/** + * Texture image record + */ struct gl_texture_image { - GLenum Format; /* GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, - * GL_INTENSITY, GL_RGB, GL_RGBA, - * GL_COLOR_INDEX or GL_DEPTH_COMPONENT only. - * Used for choosing TexEnv arithmetic. + GLenum Format; /**< GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, + * GL_INTENSITY, GL_RGB, GL_RGBA, + * GL_COLOR_INDEX or GL_DEPTH_COMPONENT only. + * Used for choosing TexEnv arithmetic. */ - GLint IntFormat; /* Internal format as given by the user */ - GLuint Border; /* 0 or 1 */ - GLuint Width; /* = 2^WidthLog2 + 2*Border */ - GLuint Height; /* = 2^HeightLog2 + 2*Border */ - GLuint Depth; /* = 2^DepthLog2 + 2*Border */ - GLuint RowStride; /* == Width unless IsClientData and padded */ - GLuint Width2; /* = Width - 2*Border */ - GLuint Height2; /* = Height - 2*Border */ - GLuint Depth2; /* = Depth - 2*Border */ - GLuint WidthLog2; /* = log2(Width2) */ - GLuint HeightLog2; /* = log2(Height2) */ - GLuint DepthLog2; /* = log2(Depth2) */ - GLuint MaxLog2; /* = MAX(WidthLog2, HeightLog2) */ - GLfloat WidthScale; /* used for mipmap lod computation */ - GLfloat HeightScale; /* used for mipmap lod computation */ - GLfloat DepthScale; /* used for mipmap lod computation */ - GLvoid *Data; /* Image data, accessed via FetchTexel() */ - GLboolean IsClientData; /* Data owned by client? */ - GLboolean _IsPowerOfTwo; /* Are all dimensions powers of two? */ + GLint IntFormat; /**< Internal format as given by the user */ + GLuint Border; /**< 0 or 1 */ + GLuint Width; /**< = 2^WidthLog2 + 2*Border */ + GLuint Height; /**< = 2^HeightLog2 + 2*Border */ + GLuint Depth; /**< = 2^DepthLog2 + 2*Border */ + GLuint RowStride; /**< == Width unless IsClientData and padded */ + GLuint Width2; /**< = Width - 2*Border */ + GLuint Height2; /**< = Height - 2*Border */ + GLuint Depth2; /**< = Depth - 2*Border */ + GLuint WidthLog2; /**< = log2(Width2) */ + GLuint HeightLog2; /**< = log2(Height2) */ + GLuint DepthLog2; /**< = log2(Depth2) */ + GLuint MaxLog2; /**< = MAX(WidthLog2, HeightLog2) */ + GLfloat WidthScale; /**< used for mipmap LOD computation */ + GLfloat HeightScale; /**< used for mipmap LOD computation */ + GLfloat DepthScale; /**< used for mipmap LOD computation */ + GLvoid *Data; /**< Image data, accessed via FetchTexel() */ + GLboolean IsClientData; /**< Data owned by client? */ + GLboolean _IsPowerOfTwo; /**< Are all dimensions powers of two? */ const struct gl_texture_format *TexFormat; - FetchTexelFunc FetchTexel; /* Texel fetch function pointer */ + FetchTexelFunc FetchTexel; /**< Texel fetch function pointer */ - GLboolean IsCompressed; /* GL_ARB_texture_compression */ - GLuint CompressedSize; /* GL_ARB_texture_compression */ + GLboolean IsCompressed; /**< GL_ARB_texture_compression */ + GLuint CompressedSize; /**< GL_ARB_texture_compression */ - /* For device driver: */ - void *DriverData; /* Arbitrary device driver data */ + /** + * \name For device driver: + */ + /*@{*/ + void *DriverData; /**< Arbitrary device driver data */ + /*@}*/ }; -/* Texture object record */ +/** + * Texture object record + */ struct gl_texture_object { - _glthread_Mutex Mutex; /* for thread safety */ - GLint RefCount; /* reference count */ - GLuint Name; /* an unsigned integer */ - GLenum Target; /* GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ - GLfloat Priority; /* in [0,1] */ - GLfloat BorderColor[4]; /* unclamped */ - GLchan _BorderChan[4]; /* clamped, as GLchan */ - GLenum WrapS; /* Wrap modes are: GL_CLAMP, REPEAT */ - GLenum WrapT; /* GL_CLAMP_TO_EDGE, and */ - GLenum WrapR; /* GL_CLAMP_TO_BORDER_ARB */ - GLenum MinFilter; /* minification filter */ - GLenum MagFilter; /* magnification filter */ - GLfloat MinLod; /* min lambda, OpenGL 1.2 */ - GLfloat MaxLod; /* max lambda, OpenGL 1.2 */ - GLint BaseLevel; /* min mipmap level, OpenGL 1.2 */ - GLint MaxLevel; /* max mipmap level, OpenGL 1.2 */ - GLfloat MaxAnisotropy; /* GL_EXT_texture_filter_anisotropic */ - GLboolean CompareFlag; /* GL_SGIX_shadow */ - GLenum CompareOperator; /* GL_SGIX_shadow */ + _glthread_Mutex Mutex; /**< for thread safety */ + GLint RefCount; /**< reference count */ + GLuint Name; /**< an unsigned integer */ + GLenum Target; /**< GL_TEXTURE_1D, GL_TEXTURE_2D, etc. */ + GLfloat Priority; /**< in [0,1] */ + GLfloat BorderColor[4]; /**< unclamped */ + GLchan _BorderChan[4]; /**< clamped, as GLchan */ + /** \name Wrap modes + * Are GL_CLAMP, REPEAT, GL_CLAMP_TO_EDGE, and GL_CLAMP_TO_BORDER_ARB. */ + /*@{*/ + GLenum WrapS; + GLenum WrapT; + GLenum WrapR; + /*@}*/ + GLenum MinFilter; /**< minification filter */ + GLenum MagFilter; /**< magnification filter */ + GLfloat MinLod; /**< min lambda, OpenGL 1.2 */ + GLfloat MaxLod; /**< max lambda, OpenGL 1.2 */ + GLint BaseLevel; /**< min mipmap level, OpenGL 1.2 */ + GLint MaxLevel; /**< max mipmap level, OpenGL 1.2 */ + GLfloat MaxAnisotropy; /**< GL_EXT_texture_filter_anisotropic */ + GLboolean CompareFlag; /**< GL_SGIX_shadow */ + GLenum CompareOperator; /**< GL_SGIX_shadow */ GLfloat ShadowAmbient; - GLenum CompareMode; /* GL_ARB_shadow */ - GLenum CompareFunc; /* GL_ARB_shadow */ - GLenum DepthMode; /* GL_ARB_depth_texture */ - GLint _MaxLevel; /* actual max mipmap level (q in the spec) */ - GLfloat _MaxLambda; /* = _MaxLevel - BaseLevel (q - b in spec) */ - GLboolean GenerateMipmap; /* GL_SGIS_generate_mipmap */ - GLboolean _IsPowerOfTwo; /* Are all image dimensions powers of two? */ + GLenum CompareMode; /**< GL_ARB_shadow */ + GLenum CompareFunc; /**< GL_ARB_shadow */ + GLenum DepthMode; /**< GL_ARB_depth_texture */ + GLint _MaxLevel; /**< actual max mipmap level (q in the spec) */ + GLfloat _MaxLambda; /**< = _MaxLevel - BaseLevel (q - b in spec) */ + GLboolean GenerateMipmap; /**< GL_SGIS_generate_mipmap */ + GLboolean _IsPowerOfTwo; /**< Are all image dimensions powers of two? */ struct gl_texture_image *Image[MAX_TEXTURE_LEVELS]; - /* Texture cube faces */ - /* Image[] is alias for *PosX[MAX_TEXTURE_LEVELS]; */ + /** + * \name Texture cube faces + * + * Image[] is alias for *PosX[MAX_TEXTURE_LEVELS]; + */ + /*@{*/ struct gl_texture_image *NegX[MAX_TEXTURE_LEVELS]; struct gl_texture_image *PosY[MAX_TEXTURE_LEVELS]; struct gl_texture_image *NegY[MAX_TEXTURE_LEVELS]; struct gl_texture_image *PosZ[MAX_TEXTURE_LEVELS]; struct gl_texture_image *NegZ[MAX_TEXTURE_LEVELS]; + /*@}*/ - /* GL_EXT_paletted_texture */ + /** GL_EXT_paletted_texture */ struct gl_color_table Palette; - GLboolean Complete; /* Is texture object complete? */ - struct gl_texture_object *Next; /* Next in linked list */ + GLboolean Complete; /**< Is texture object complete? */ + struct gl_texture_object *Next; /**< Next in linked list */ - /* For device driver: */ - void *DriverData; /* Arbitrary device driver data */ + /** + * \name For device driver + */ + /*@{*/ + void *DriverData; /**< Arbitrary device driver data */ + /*@}*/ }; -/* Texture unit record */ +/** + * Texture unit record + */ struct gl_texture_unit { - GLuint Enabled; /* bitmask of TEXTURE_*_BIT flags */ - GLuint _ReallyEnabled; /* 0 or exactly one of TEXTURE_*_BIT flags */ + GLuint Enabled; /**< bitmask of TEXTURE_*_BIT flags */ + GLuint _ReallyEnabled; /**< 0 or exactly one of TEXTURE_*_BIT flags */ - GLenum EnvMode; /* GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ + GLenum EnvMode; /**< GL_MODULATE, GL_DECAL, GL_BLEND, etc. */ GLfloat EnvColor[4]; - GLuint TexGenEnabled; /* Bitwise-OR of [STRQ]_BIT values */ - GLenum GenModeS; /* Tex coord generation mode, either */ - GLenum GenModeT; /* GL_OBJECT_LINEAR, or */ - GLenum GenModeR; /* GL_EYE_LINEAR, or */ - GLenum GenModeQ; /* GL_SPHERE_MAP */ + GLuint TexGenEnabled; /**< Bitwise-OR of [STRQ]_BIT values */ + /** \name Tex coord generation mode + * Either GL_OBJECT_LINEAR, GL_EYE_LINEAR or GL_SPHERE_MAP. */ + /*@{*/ + GLenum GenModeS; + GLenum GenModeT; + GLenum GenModeR; + GLenum GenModeQ; + /*@}*/ GLuint _GenBitS; GLuint _GenBitT; GLuint _GenBitR; GLuint _GenBitQ; - GLuint _GenFlags; /* bitwise or of GenBit[STRQ] */ + GLuint _GenFlags; /**< bitwise or of GenBit[STRQ] */ GLfloat ObjectPlaneS[4]; GLfloat ObjectPlaneT[4]; GLfloat ObjectPlaneR[4]; @@ -968,27 +1123,31 @@ struct gl_texture_unit { GLfloat EyePlaneT[4]; GLfloat EyePlaneR[4]; GLfloat EyePlaneQ[4]; - GLfloat LodBias; /* for biasing mipmap levels */ - - /* GL_EXT_texture_env_combine */ - GLenum CombineModeRGB; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - GLenum CombineModeA; /* GL_REPLACE, GL_DECAL, GL_ADD, etc. */ - GLenum CombineSourceRGB[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ - GLenum CombineSourceA[3]; /* GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ - GLenum CombineOperandRGB[3]; /* SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ - GLenum CombineOperandA[3]; /* SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ - GLuint CombineScaleShiftRGB; /* 0, 1 or 2 */ - GLuint CombineScaleShiftA; /* 0, 1 or 2 */ + GLfloat LodBias; /**< for biasing mipmap levels */ + + /** + * \name GL_EXT_texture_env_combine + */ + /*@{*/ + GLenum CombineModeRGB; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ + GLenum CombineModeA; /**< GL_REPLACE, GL_DECAL, GL_ADD, etc. */ + GLenum CombineSourceRGB[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum CombineSourceA[3]; /**< GL_PRIMARY_COLOR, GL_TEXTURE, etc. */ + GLenum CombineOperandRGB[3]; /**< SRC_COLOR, ONE_MINUS_SRC_COLOR, etc */ + GLenum CombineOperandA[3]; /**< SRC_ALPHA, ONE_MINUS_SRC_ALPHA, etc */ + GLuint CombineScaleShiftRGB; /**< 0, 1 or 2 */ + GLuint CombineScaleShiftA; /**< 0, 1 or 2 */ + /*@}*/ struct gl_texture_object *Current1D; struct gl_texture_object *Current2D; struct gl_texture_object *Current3D; - struct gl_texture_object *CurrentCubeMap; /* GL_ARB_texture_cube_map */ - struct gl_texture_object *CurrentRect; /* GL_NV_texture_rectangle */ + struct gl_texture_object *CurrentCubeMap; /**< GL_ARB_texture_cube_map */ + struct gl_texture_object *CurrentRect; /**< GL_NV_texture_rectangle */ - struct gl_texture_object *_Current; /* Points to really enabled tex obj */ + struct gl_texture_object *_Current; /**< Points to really enabled tex obj */ - struct gl_texture_object Saved1D; /* only used by glPush/PopAttrib */ + struct gl_texture_object Saved1D; /**< only used by glPush/PopAttrib */ struct gl_texture_object Saved2D; struct gl_texture_object Saved3D; struct gl_texture_object SavedCubeMap; @@ -1001,16 +1160,21 @@ struct gl_texture_unit { }; -/* The texture attribute group */ +/** + * Texture attributes + */ struct gl_texture_attrib { - /* multitexture */ - GLuint CurrentUnit; /* Active texture unit */ - - GLuint _EnabledUnits; /* one bit set for each really-enabled unit */ - GLuint _EnabledCoordUnits; /* one bit per enabled coordinate unit */ - GLuint _GenFlags; /* for texgen */ - GLuint _TexGenEnabled; + /** + * name multitexture + */ + /**@{*/ + GLuint CurrentUnit; /**< Active texture unit */ + GLuint _EnabledUnits; /**< one bit set for each really-enabled unit */ + GLuint _EnabledCoordUnits; /**< one bit per enabled coordinate unit */ + GLuint _GenFlags; /**< for texgen */ + GLuint _TexGenEnabled; GLuint _TexMatEnabled; + /**@}*/ struct gl_texture_unit Unit[MAX_TEXTURE_UNITS]; @@ -1020,32 +1184,40 @@ struct gl_texture_attrib { struct gl_texture_object *ProxyCubeMap; struct gl_texture_object *ProxyRect; - /* GL_EXT_shared_texture_palette */ + /** GL_EXT_shared_texture_palette */ GLboolean SharedPalette; struct gl_color_table Palette; }; +/** + * Transformation attributes. + */ struct gl_transform_attrib { - GLenum MatrixMode; /* Matrix mode */ - GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; - GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /* derived */ - GLuint ClipPlanesEnabled; /* on/off bitmask */ - GLboolean Normalize; /* Normalize all normals? */ - GLboolean RescaleNormals; /* GL_EXT_rescale_normal */ - GLboolean RasterPositionUnclipped; /* GL_IBM_rasterpos_clip */ + GLenum MatrixMode; /**< Matrix mode */ + GLfloat EyeUserPlane[MAX_CLIP_PLANES][4]; /**< User clip planes */ + GLfloat _ClipUserPlane[MAX_CLIP_PLANES][4]; /**< derived */ + GLuint ClipPlanesEnabled; /**< on/off bitmask */ + GLboolean Normalize; /**< Normalize all normals? */ + GLboolean RescaleNormals; /**< GL_EXT_rescale_normal */ + GLboolean RasterPositionUnclipped; /**< GL_IBM_rasterpos_clip */ }; +/** + * Viewport attributes. + */ struct gl_viewport_attrib { - GLint X, Y; /* position */ - GLsizei Width, Height; /* size */ - GLfloat Near, Far; /* Depth buffer range */ - GLmatrix _WindowMap; /* Mapping transformation as a matrix. */ + GLint X, Y; /**< position */ + GLsizei Width, Height; /**< size */ + GLfloat Near, Far; /**< Depth buffer range */ + GLmatrix _WindowMap; /**< Mapping transformation as a matrix. */ }; -/* For the attribute stack: */ +/** + * Node for the attribute stack + */ struct gl_attrib_node { GLbitfield kind; void *data; @@ -1053,7 +1225,7 @@ struct gl_attrib_node { }; -/* +/** * Client pixel packing/unpacking attributes */ struct gl_pixelstore_attrib { @@ -1061,35 +1233,38 @@ struct gl_pixelstore_attrib { GLint RowLength; GLint SkipPixels; GLint SkipRows; - GLint ImageHeight; /* for GL_EXT_texture3D */ - GLint SkipImages; /* for GL_EXT_texture3D */ + GLint ImageHeight; /**< for GL_EXT_texture3D */ + GLint SkipImages; /**< for GL_EXT_texture3D */ GLboolean SwapBytes; GLboolean LsbFirst; - GLboolean ClientStorage; /* GL_APPLE_client_storage */ - GLboolean Invert; /* GL_MESA_pack_invert */ + GLboolean ClientStorage; /**< GL_APPLE_client_storage */ + GLboolean Invert; /**< GL_MESA_pack_invert */ }; -#define CA_CLIENT_DATA 0x1 /* Data not alloced by mesa */ +#define CA_CLIENT_DATA 0x1 /**< Data not allocated by mesa */ -/* +/** * Client vertex array attributes */ struct gl_client_array { GLint Size; GLenum Type; - GLsizei Stride; /* user-specified stride */ - GLsizei StrideB; /* actual stride in bytes */ + GLsizei Stride; /**< user-specified stride */ + GLsizei StrideB; /**< actual stride in bytes */ void *Ptr; GLuint Flags; - GLuint Enabled; /* one of the _NEW_ARRAY_ bits */ - GLboolean Normalized; /* GL_ARB_vertex_program */ + GLuint Enabled; /**< one of the _NEW_ARRAY_ bits */ + GLboolean Normalized; /**< GL_ARB_vertex_program */ }; +/** + * Array attributes. + */ struct gl_array_attrib { - struct gl_client_array Vertex; /* client data descriptors */ + struct gl_client_array Vertex; /**< client data descriptors */ struct gl_client_array Normal; struct gl_client_array Color; struct gl_client_array SecondaryColor; @@ -1097,16 +1272,16 @@ struct gl_array_attrib { struct gl_client_array Index; struct gl_client_array TexCoord[MAX_TEXTURE_COORD_UNITS]; struct gl_client_array EdgeFlag; - /* GL_NV_vertex_program */ - struct gl_client_array VertexAttrib[VERT_ATTRIB_MAX]; + + struct gl_client_array VertexAttrib[VERT_ATTRIB_MAX]; /**< GL_NV_vertex_program */ GLint TexCoordInterleaveFactor; - GLint ActiveTexture; /* Client Active Texture */ + GLint ActiveTexture; /**< Client Active Texture */ GLuint LockFirst; GLuint LockCount; - GLuint _Enabled; /* _NEW_ARRAY_* - bit set if array enabled */ - GLuint NewState; /* _NEW_ARRAY_* */ + GLuint _Enabled; /**< _NEW_ARRAY_* - bit set if array enabled */ + GLuint NewState; /**< _NEW_ARRAY_* */ /* GL_ARB_vertex_buffer_object */ GLuint ArrayBufferBinding; @@ -1133,45 +1308,52 @@ struct gl_feedback { }; +/** + * Selection attributes. + */ struct gl_selection { - GLuint *Buffer; - GLuint BufferSize; /* size of SelectBuffer */ - GLuint BufferCount; /* number of values in SelectBuffer */ - GLuint Hits; /* number of records in SelectBuffer */ - GLuint NameStackDepth; - GLuint NameStack[MAX_NAME_STACK_DEPTH]; - GLboolean HitFlag; - GLfloat HitMinZ, HitMaxZ; + GLuint *Buffer; /**< selection buffer */ + GLuint BufferSize; /**< size of the selection buffer */ + GLuint BufferCount; /**< number of values in the selection buffer */ + GLuint Hits; /**< number of records in the selection buffer */ + GLuint NameStackDepth; /**< name stack depth */ + GLuint NameStack[MAX_NAME_STACK_DEPTH]; /**< name stack */ + GLboolean HitFlag; /**< hit flag */ + GLfloat HitMinZ; /**< minimum hit depth */ + GLfloat HitMaxZ; /**< maximum hit depth */ }; -/* +/** * 1-D Evaluator control points */ struct gl_1d_map { - GLuint Order; /* Number of control points */ - GLfloat u1, u2, du; /* u1, u2, 1.0/(u2-u1) */ - GLfloat *Points; /* Points to contiguous control points */ + GLuint Order; /**< Number of control points */ + GLfloat u1, u2, du; /**< u1, u2, 1.0/(u2-u1) */ + GLfloat *Points; /**< Points to contiguous control points */ }; -/* +/** * 2-D Evaluator control points */ struct gl_2d_map { - GLuint Uorder; /* Number of control points in U dimension */ - GLuint Vorder; /* Number of control points in V dimension */ + GLuint Uorder; /**< Number of control points in U dimension */ + GLuint Vorder; /**< Number of control points in V dimension */ GLfloat u1, u2, du; GLfloat v1, v2, dv; - GLfloat *Points; /* Points to contiguous control points */ + GLfloat *Points; /**< Points to contiguous control points */ }; -/* - * All evalutator control points +/** + * All evaluator control points */ struct gl_evaluators { - /* 1-D maps */ + /** + * \name 1-D maps + */ + /*@{*/ struct gl_1d_map Map1Vertex3; struct gl_1d_map Map1Vertex4; struct gl_1d_map Map1Index; @@ -1181,9 +1363,13 @@ struct gl_evaluators { struct gl_1d_map Map1Texture2; struct gl_1d_map Map1Texture3; struct gl_1d_map Map1Texture4; - struct gl_1d_map Map1Attrib[16]; /* GL_NV_vertex_program */ + struct gl_1d_map Map1Attrib[16]; /**< GL_NV_vertex_program */ + /*@}*/ - /* 2-D maps */ + /** + * \name 2-D maps + */ + /*@{*/ struct gl_2d_map Map2Vertex3; struct gl_2d_map Map2Vertex4; struct gl_2d_map Map2Index; @@ -1193,12 +1379,20 @@ struct gl_evaluators { struct gl_2d_map Map2Texture2; struct gl_2d_map Map2Texture3; struct gl_2d_map Map2Texture4; - struct gl_2d_map Map2Attrib[16]; /* GL_NV_vertex_program */ + struct gl_2d_map Map2Attrib[16]; /**< GL_NV_vertex_program */ + /*@}*/ }; +/** + * \name NV_vertex_program runtime state + */ +/*@{*/ + -/* NV_vertex_program runtime state */ +/** + * Machine state (i.e. the register file) + */ struct vp_machine { GLfloat Registers[MAX_NV_VERTEX_PROGRAM_TEMPS @@ -1209,7 +1403,9 @@ struct vp_machine }; -/* NV_fragment_program runtime state */ +/** + * NV_fragment_program runtime state + */ struct fp_machine { GLfloat Registers[MAX_NV_FRAGMENT_PROGRAM_TEMPS @@ -1225,7 +1421,9 @@ struct fp_machine struct vp_instruction; struct fp_instruction; -/* Program parameters */ +/** + * Program parameters + */ struct program_parameter { const char *Name; @@ -1234,7 +1432,9 @@ struct program_parameter }; -/* Base class for any kind of program object */ +/** + * Base class for any kind of program object + */ struct program { GLuint Id; @@ -1252,7 +1452,7 @@ struct program }; -/* Vertex program object */ +/** Vertex program object */ struct vertex_program { struct program Base; /* base class */ @@ -1263,23 +1463,23 @@ struct vertex_program }; -/* Fragment program object */ +/** Fragment program object */ struct fragment_program { - struct program Base; /* base class */ - struct fp_instruction *Instructions; /* Compiled instructions */ - GLuint InputsRead; /* Bitmask of which input regs are read */ - GLuint OutputsWritten; /* Bitmask of which output regs are written to */ - GLuint TexturesUsed[MAX_TEXTURE_IMAGE_UNITS]; /* TEXTURE_x_INDEX bitmask */ - GLuint NumAluInstructions; /* GL_ARB_fragment_program */ + struct program Base; /**< base class */ + struct fp_instruction *Instructions; /**< Compiled instructions */ + GLuint InputsRead; /**< Bitmask of which input regs are read */ + GLuint OutputsWritten; /**< Bitmask of which output regs are written to */ + GLuint TexturesUsed[MAX_TEXTURE_IMAGE_UNITS]; /**< TEXTURE_x_INDEX bitmask */ + GLuint NumAluInstructions; /**< GL_ARB_fragment_program */ GLuint NumTexInstructions; GLuint NumTexIndirections; - struct program_parameter *Parameters; /* array [NumParameters] */ + struct program_parameter *Parameters; /**< array [NumParameters] */ GLuint NumParameters; }; -/* +/** * State common to vertex and fragment programs. */ struct program_state { @@ -1288,16 +1488,16 @@ struct program_state { }; -/* - * State for GL_ARB/NV_vertex_program +/** + * State vars for GL_NV_vertex_program */ struct vertex_program_state { - GLboolean Enabled; /* GL_VERTEX_PROGRAM_NV */ - GLboolean PointSizeEnabled; /* GL_VERTEX_PROGRAM_POINT_SIZE_NV */ - GLboolean TwoSideEnabled; /* GL_VERTEX_PROGRAM_TWO_SIDE_NV */ - struct vertex_program *Current; /* ptr to currently bound program */ - struct vp_machine Machine; /* machine state */ + GLboolean Enabled; /**< GL_VERTEX_PROGRAM_NV */ + GLboolean PointSizeEnabled; /**< GL_VERTEX_PROGRAM_POINT_SIZE_NV */ + GLboolean TwoSideEnabled; /**< GL_VERTEX_PROGRAM_TWO_SIDE_NV */ + struct vertex_program *Current; /**< ptr to currently bound program */ + struct vp_machine Machine; /**< machine state */ GLenum TrackMatrix[MAX_NV_VERTEX_PROGRAM_PARAMS / 4]; GLenum TrackMatrixTransform[MAX_NV_VERTEX_PROGRAM_PARAMS / 4]; @@ -1314,6 +1514,7 @@ struct fragment_program_state struct fp_machine Machine; /* machine state */ }; +/*@}*/ /* * State for GL_ARB_occlusion_query @@ -1327,24 +1528,31 @@ struct occlusion_state }; -/* +/** * State which can be shared by multiple contexts: */ struct gl_shared_state { - _glthread_Mutex Mutex; /* for thread safety */ - GLint RefCount; /* Reference count */ - struct _mesa_HashTable *DisplayList; /* Display lists hash table */ - struct _mesa_HashTable *TexObjects; /* Texture objects hash table */ - struct gl_texture_object *TexObjectList;/* Linked list of texture objects */ + _glthread_Mutex Mutex; /**< for thread safety */ + GLint RefCount; /**< Reference count */ + struct _mesa_HashTable *DisplayList; /**< Display lists hash table */ + struct _mesa_HashTable *TexObjects; /**< Texture objects hash table */ + struct gl_texture_object *TexObjectList;/**< Linked list of texture objects */ - /* Default texture objects (shared by all multi-texture units) */ + /** + * \name Default texture objects (shared by all multi-texture units) + */ + /*@{*/ struct gl_texture_object *Default1D; struct gl_texture_object *Default2D; struct gl_texture_object *Default3D; struct gl_texture_object *DefaultCubeMap; struct gl_texture_object *DefaultRect; + /*@}*/ - /* GL_NV_vertex/_program */ + /** + * \name GL_NV_vertex/_program + */ + /*@{*/ struct _mesa_HashTable *Programs; #if FEATURE_ARB_vertex_program struct program *DefaultVertexProgram; @@ -1352,56 +1560,75 @@ struct gl_shared_state { #if FEATURE_ARB_fragment_program struct program *DefaultFragmentProgram; #endif + /*@}*/ - void *DriverData; /* Device driver shared state */ + void *DriverData; /**< Device driver shared state */ }; -/* +/** + * Frame buffer. + * * A "frame buffer" is a color buffer and its optional ancillary buffers: * depth, accum, stencil, and software-simulated alpha buffers. * In C++ terms, think of this as a base class from which device drivers * will make derived classes. */ struct gl_frame_buffer { - GLvisual Visual; /* The corresponding visual */ + GLvisual Visual; /**< The corresponding visual */ - GLuint Width, Height; /* size of frame buffer in pixels */ + GLuint Width, Height; /**< size of frame buffer in pixels */ GLboolean UseSoftwareDepthBuffer; GLboolean UseSoftwareAccumBuffer; GLboolean UseSoftwareStencilBuffer; GLboolean UseSoftwareAlphaBuffers; - /* Software depth (aka Z) buffer */ - GLvoid *DepthBuffer; /* array [Width*Height] of GLushort or GLuint*/ - - /* Software stencil buffer */ - GLstencil *Stencil; /* array [Width*Height] of GLstencil values */ - - /* Software accumulation buffer */ - GLaccum *Accum; /* array [4*Width*Height] of GLaccum values */ - - /* Software alpha planes */ - GLvoid *FrontLeftAlpha; /* array [Width*Height] of GLubyte */ - GLvoid *BackLeftAlpha; /* array [Width*Height] of GLubyte */ - GLvoid *FrontRightAlpha; /* array [Width*Height] of GLubyte */ - GLvoid *BackRightAlpha; /* array [Width*Height] of GLubyte */ - - /* Drawing bounds: intersection of window size and scissor box */ - GLint _Xmin, _Ymin; /* inclusive */ - GLint _Xmax, _Ymax; /* exclusive */ + /** \name Software depth (aka Z) buffer */ + /*@{*/ + GLvoid *DepthBuffer; /**< array [Width*Height] of GLushort or GLuint*/ + /*@}*/ + + /** \name Software stencil buffer */ + /*@{*/ + GLstencil *Stencil; /**< array [Width*Height] of GLstencil values */ + /*@}*/ + + /** \name Software accumulation buffer */ + /*@{*/ + GLaccum *Accum; /**< array [4*Width*Height] of GLaccum values */ + /*@}*/ + + /** \name Software alpha planes */ + /*@{*/ + GLvoid *FrontLeftAlpha; /**< array [Width*Height] of GLubyte */ + GLvoid *BackLeftAlpha; /**< array [Width*Height] of GLubyte */ + GLvoid *FrontRightAlpha; /**< array [Width*Height] of GLubyte */ + GLvoid *BackRightAlpha; /**< array [Width*Height] of GLubyte */ + /*@}*/ + + /** + * \name Drawing bounds + * + * Intersection of window size and scissor box + */ + /*@{*/ + GLint _Xmin; /**< inclusive */ + GLint _Ymin; /**< inclusive */ + GLint _Xmax; /**< exclusive */ + GLint _Ymax; /**< exclusive */ + /*@}*/ }; -/* - * Constants which may be overriden by device driver during context creation +/** + * Constants which may be overridden by device driver during context creation * but are never changed after that. */ struct gl_constants { - GLint MaxTextureLevels; - GLint Max3DTextureLevels; - GLint MaxCubeTextureLevels; /* GL_ARB_texture_cube_map */ + GLint MaxTextureLevels; /**< Maximum number of allowed mipmap levels. */ + GLint Max3DTextureLevels; /**< Maximum number of allowed mipmap levels for 3D texture targets. */ + GLint MaxCubeTextureLevels; /**< Maximum number of allowed mipmap levels for GL_ARB_texture_cube_map */ GLint MaxTextureRectSize; /* GL_NV_texture_rectangle */ GLuint MaxTextureCoordUnits; GLuint MaxTextureImageUnits; @@ -1447,13 +1674,16 @@ struct gl_constants { }; -/* +/** * List of extensions. */ struct gl_extensions { - /* Flags to quickly test if certain extensions are available. + /** + * \name Flags to quickly test if certain extensions are available. + * * Not every extension needs to have such a flag, but it's encouraged. */ + /*@{*/ GLboolean dummy; /* don't remove this! */ GLboolean ARB_depth_texture; GLboolean ARB_fragment_program; @@ -1525,27 +1755,31 @@ struct gl_extensions { GLboolean SGIX_shadow_ambient; /* or GL_ARB_shadow_ambient */ GLboolean TDFX_texture_compression_FXT1; GLboolean APPLE_client_storage; + /*@}*/ /* The extension string */ const GLubyte *String; }; -/* +/** * A stack of matrices (projection, modelview, color, texture, etc). */ struct matrix_stack { - GLmatrix *Top; /* points into Stack */ - GLmatrix *Stack; /* array [MaxDepth] of GLmatrix */ - GLuint Depth; /* 0 <= Depth < MaxDepth */ - GLuint MaxDepth; /* size of Stack[] array */ - GLuint DirtyFlag; /* _NEW_MODELVIEW or _NEW_PROJECTION, for example */ + GLmatrix *Top; /**< points into Stack */ + GLmatrix *Stack; /**< array [MaxDepth] of GLmatrix */ + GLuint Depth; /**< 0 <= Depth < MaxDepth */ + GLuint MaxDepth; /**< size of Stack[] array */ + GLuint DirtyFlag; /**< _NEW_MODELVIEW or _NEW_PROJECTION, for example */ }; -/* - * Bits for image transfer operations (ctx->ImageTransferState). +/** + * \name Bits for image transfer operations + * + * \sa __GLcontextRec::ImageTransferState. */ +/*@{*/ #define IMAGE_SCALE_BIAS_BIT 0x1 #define IMAGE_SHIFT_OFFSET_BIT 0x2 #define IMAGE_MAP_COLOR_BIT 0x4 @@ -1558,58 +1792,66 @@ struct matrix_stack #define IMAGE_HISTOGRAM_BIT 0x200 #define IMAGE_MIN_MAX_BIT 0x400 -/* transfer ops up to convolution: */ +/** Transfer ops up to convolution */ #define IMAGE_PRE_CONVOLUTION_BITS (IMAGE_SCALE_BIAS_BIT | \ IMAGE_SHIFT_OFFSET_BIT | \ IMAGE_MAP_COLOR_BIT | \ IMAGE_COLOR_TABLE_BIT) -/* transfer ops after convolution: */ +/** Transfer ops after convolution */ #define IMAGE_POST_CONVOLUTION_BITS (IMAGE_POST_CONVOLUTION_SCALE_BIAS | \ IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT | \ IMAGE_COLOR_MATRIX_BIT | \ IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT |\ IMAGE_HISTOGRAM_BIT | \ IMAGE_MIN_MAX_BIT) +/*@}*/ -/* - * Bits to indicate what state has changed. 6 unused flags. - */ -#define _NEW_MODELVIEW 0x1 /* ctx->ModelView */ -#define _NEW_PROJECTION 0x2 /* ctx->Projection */ -#define _NEW_TEXTURE_MATRIX 0x4 /* ctx->TextureMatrix */ -#define _NEW_COLOR_MATRIX 0x8 /* ctx->ColorMatrix */ -#define _NEW_ACCUM 0x10 /* ctx->Accum */ -#define _NEW_COLOR 0x20 /* ctx->Color */ -#define _NEW_DEPTH 0x40 /* ctx->Depth */ -#define _NEW_EVAL 0x80 /* ctx->Eval, ctx->EvalMap */ -#define _NEW_FOG 0x100 /* ctx->Fog */ -#define _NEW_HINT 0x200 /* ctx->Hint */ -#define _NEW_LIGHT 0x400 /* ctx->Light */ -#define _NEW_LINE 0x800 /* ctx->Line */ -#define _NEW_PIXEL 0x1000 /* ctx->Pixel */ -#define _NEW_POINT 0x2000 /* ctx->Point */ -#define _NEW_POLYGON 0x4000 /* ctx->Polygon */ -#define _NEW_POLYGONSTIPPLE 0x8000 /* ctx->PolygonStipple */ -#define _NEW_SCISSOR 0x10000 /* ctx->Scissor */ -#define _NEW_STENCIL 0x20000 /* ctx->Stencil */ -#define _NEW_TEXTURE 0x40000 /* ctx->Texture */ -#define _NEW_TRANSFORM 0x80000 /* ctx->Transform */ -#define _NEW_VIEWPORT 0x100000 /* ctx->Viewport */ -#define _NEW_PACKUNPACK 0x200000 /* ctx->Pack, ctx->Unpack */ -#define _NEW_ARRAY 0x400000 /* ctx->Array */ -#define _NEW_RENDERMODE 0x800000 /* RenderMode, Feedback, Select */ -#define _NEW_BUFFERS 0x1000000 /* ctx->Visual, ctx->DrawBuffer, */ -#define _NEW_MULTISAMPLE 0x2000000 /* ctx->Multisample */ -#define _NEW_TRACK_MATRIX 0x4000000 /* ctx->VertexProgram */ -#define _NEW_PROGRAM 0x8000000 /* ctx->VertexProgram */ +/** + * \name Bits to indicate what state has changed. + * + * 6 unused flags. + */ +/*@{*/ +#define _NEW_MODELVIEW 0x1 /**< __GLcontextRec::ModelView */ +#define _NEW_PROJECTION 0x2 /**< __GLcontextRec::Projection */ +#define _NEW_TEXTURE_MATRIX 0x4 /**< __GLcontextRec::TextureMatrix */ +#define _NEW_COLOR_MATRIX 0x8 /**< __GLcontextRec::ColorMatrix */ +#define _NEW_ACCUM 0x10 /**< __GLcontextRec::Accum */ +#define _NEW_COLOR 0x20 /**< __GLcontextRec::Color */ +#define _NEW_DEPTH 0x40 /**< __GLcontextRec::Depth */ +#define _NEW_EVAL 0x80 /**< __GLcontextRec::Eval, __GLcontextRec::EvalMap */ +#define _NEW_FOG 0x100 /**< __GLcontextRec::Fog */ +#define _NEW_HINT 0x200 /**< __GLcontextRec::Hint */ +#define _NEW_LIGHT 0x400 /**< __GLcontextRec::Light */ +#define _NEW_LINE 0x800 /**< __GLcontextRec::Line */ +#define _NEW_PIXEL 0x1000 /**< __GLcontextRec::Pixel */ +#define _NEW_POINT 0x2000 /**< __GLcontextRec::Point */ +#define _NEW_POLYGON 0x4000 /**< __GLcontextRec::Polygon */ +#define _NEW_POLYGONSTIPPLE 0x8000 /**< __GLcontextRec::PolygonStipple */ +#define _NEW_SCISSOR 0x10000 /**< __GLcontextRec::Scissor */ +#define _NEW_STENCIL 0x20000 /**< __GLcontextRec::Stencil */ +#define _NEW_TEXTURE 0x40000 /**< __GLcontextRec::Texture */ +#define _NEW_TRANSFORM 0x80000 /**< __GLcontextRec::Transform */ +#define _NEW_VIEWPORT 0x100000 /**< __GLcontextRec::Viewport */ +#define _NEW_PACKUNPACK 0x200000 /**< __GLcontextRec::Pack, __GLcontextRec::Unpack */ +#define _NEW_ARRAY 0x400000 /**< __GLcontextRec::Array */ +#define _NEW_RENDERMODE 0x800000 /**< __GLcontextRec::RenderMode, __GLcontextRec::Feedback, __GLcontextRec::Select */ +#define _NEW_BUFFERS 0x1000000 /**< __GLcontextRec::Visual, __GLcontextRec::DrawBuffer, */ +#define _NEW_MULTISAMPLE 0x2000000 /**< __GLcontextRec::Multisample */ +#define _NEW_TRACK_MATRIX 0x4000000 /**< __GLcontextRec::VertexProgram */ +#define _NEW_PROGRAM 0x8000000 /**< __GLcontextRec::VertexProgram */ #define _NEW_ALL ~0 +/*@}*/ - -/* Bits to track array state changes (also used to summarize array enabled) +/** + * \name Bits to track array state changes + * + * Also used to summarize array enabled. */ +/*@{*/ #define _NEW_ARRAY_VERTEX VERT_BIT_POS #define _NEW_ARRAY_WEIGHT VERT_BIT_WEIGHT #define _NEW_ARRAY_NORMAL VERT_BIT_NORMAL @@ -1632,11 +1874,15 @@ struct matrix_stack #define _NEW_ARRAY_TEXCOORD(i) (_NEW_ARRAY_TEXCOORD_0 << (i)) #define _NEW_ARRAY_ATTRIB(i) (_NEW_ARRAY_ATTRIB_0 << (i)) +/*@}*/ -/* A bunch of flags that we think might be useful to drivers. - * Set in the ctx->_TriangleCaps bitfield. +/** + * \name A bunch of flags that we think might be useful to drivers. + * + * Set in the __GLcontextRec::_TriangleCaps bitfield. */ +/*@{*/ #define DD_FLATSHADE 0x1 #define DD_SEPARATE_SPECULAR 0x2 #define DD_TRI_CULL_FRONT_BACK 0x4 /* special case on some hw */ @@ -1651,10 +1897,13 @@ struct matrix_stack #define DD_POINT_SMOOTH 0x800 #define DD_POINT_SIZE 0x1000 #define DD_POINT_ATTEN 0x2000 +/*@}*/ -/* Define the state changes under which each of these bits might change +/** + * \name Define the state changes under which each of these bits might change */ +/*@{*/ #define _DD_NEW_FLATSHADE _NEW_LIGHT #define _DD_NEW_SEPARATE_SPECULAR (_NEW_LIGHT | _NEW_FOG) #define _DD_NEW_TRI_CULL_FRONT_BACK _NEW_POLYGON @@ -1669,6 +1918,8 @@ struct matrix_stack #define _DD_NEW_POINT_SMOOTH _NEW_POINT #define _DD_NEW_POINT_SIZE _NEW_POINT #define _DD_NEW_POINT_ATTEN _NEW_POINT +/*@}*/ + #define _MESA_NEW_NEED_EYE_COORDS (_NEW_LIGHT | \ _NEW_TEXTURE | \ @@ -1681,20 +1932,10 @@ struct matrix_stack #define _IMAGE_NEW_TRANSFER_STATE (_NEW_PIXEL | _NEW_COLOR_MATRIX) -/* Bits for ctx->_NeedNormals */ -#define NEED_NORMALS_TEXGEN 0x1 -#define NEED_NORMALS_LIGHT 0x2 - -/* Bits for ctx->_NeedEyeCoords */ -#define NEED_EYE_TEXGEN 0x1 -#define NEED_EYE_LIGHT 0x2 -#define NEED_EYE_LIGHT_MODELVIEW 0x4 -#define NEED_EYE_POINT_ATTEN 0x8 -#define NEED_EYE_DRIVER 0x10 /* - * Forward declaration of display list datatypes: + * Forward declaration of display list data types: */ union node; typedef union node Node; @@ -1704,25 +1945,31 @@ typedef union node Node; #include "dd.h" -/* - * Core Mesa's support for tnl modules: - */ #define NUM_VERTEX_FORMAT_ENTRIES (sizeof(GLvertexformat) / sizeof(void *)) +/** + * Core Mesa's support for tnl modules: + */ struct gl_tnl_module { - /* Vertex format to be lazily swapped into current dispatch. + /** + * Vertex format to be lazily swapped into current dispatch. */ GLvertexformat *Current; - /* Record of functions swapped out. On restore, only need to swap - * these functions back in. + /** + * \name Record of functions swapped out. + * On restore, only need to swap these functions back in. */ + /*@{*/ void *Swapped[NUM_VERTEX_FORMAT_ENTRIES][2]; GLuint SwapCount; + /*@}*/ }; /** + * Mesa context + * * This is the central context data structure for Mesa. Almost all * OpenGL state is contained in this structure. * Think of this as a base class from which device drivers will derive @@ -1730,20 +1977,25 @@ struct gl_tnl_module { */ struct __GLcontextRec { /** - * OS related interfaces; these *must* be the first members of this - * structure, because they are exposed to the outside world (i.e. GLX - * extension). + * \name OS related interfaces. + * + * These \b must be the first members of this structure, because they are + * exposed to the outside world (i.e. GLX extension). */ + /*@{*/ __GLimports imports; __GLexports exports; + /*@}*/ - /* State possibly shared with other contexts in the address space */ + /** State possibly shared with other contexts in the address space */ struct gl_shared_state *Shared; - /* API function pointer tables */ - struct _glapi_table *Save; /**< Display list save funcs */ - struct _glapi_table *Exec; /**< Execute funcs */ + /** \name API function pointer tables */ + /*@{*/ + struct _glapi_table *Save; /**< Display list save functions */ + struct _glapi_table *Exec; /**< Execute functions */ struct _glapi_table *CurrentDispatch; /**< == Save or Exec !! */ + /*@}*/ GLboolean ExecPrefersFloat; /**< What preference for color conversion? */ GLboolean SavePrefersFloat; @@ -1760,127 +2012,153 @@ struct __GLcontextRec { void *DriverCtx; /**< Points to device driver context/state */ void *DriverMgrCtx; /**< Points to device driver manager (optional)*/ - /* Core/Driver constants */ + /** Core/Driver constants */ struct gl_constants Const; - /* The various 4x4 matrix stacks */ + /** \name The various 4x4 matrix stacks */ + /*@{*/ struct matrix_stack ModelviewMatrixStack; struct matrix_stack ProjectionMatrixStack; struct matrix_stack ColorMatrixStack; struct matrix_stack TextureMatrixStack[MAX_TEXTURE_COORD_UNITS]; struct matrix_stack ProgramMatrixStack[MAX_PROGRAM_MATRICES]; - struct matrix_stack *CurrentStack; /* Points to one of the above stacks */ + struct matrix_stack *CurrentStack; /**< Points to one of the above stacks */ + /*@}*/ - /* Combined modelview and projection matrix */ + /** Combined modelview and projection matrix */ GLmatrix _ModelProjectMatrix; - /* Display lists */ - GLuint CallDepth; /* Current recursion calling depth */ - GLboolean ExecuteFlag; /* Execute GL commands? */ - GLboolean CompileFlag; /* Compile GL commands into display list? */ - Node *CurrentListPtr; /* Head of list being compiled */ - GLuint CurrentListNum; /* Number of the list being compiled */ - Node *CurrentBlock; /* Pointer to current block of nodes */ - GLuint CurrentPos; /* Index into current block of nodes */ - - /* Extensions */ + /** \name Display lists */ + /*@{*/ + GLuint CallDepth; /**< Current recursion calling depth */ + GLboolean ExecuteFlag; /**< Execute GL commands? */ + GLboolean CompileFlag; /**< Compile GL commands into display list? */ + Node *CurrentListPtr; /**< Head of list being compiled */ + GLuint CurrentListNum; /**< Number of the list being compiled */ + Node *CurrentBlock; /**< Pointer to current block of nodes */ + GLuint CurrentPos; /**< Index into current block of nodes */ + /*@}*/ + + /** Extensions */ struct gl_extensions Extensions; - /* Renderer attribute stack */ + /** \name Renderer attribute stack */ + /*@{*/ GLuint AttribStackDepth; struct gl_attrib_node *AttribStack[MAX_ATTRIB_STACK_DEPTH]; + /*@}*/ - /* Renderer attribute groups */ - struct gl_accum_attrib Accum; - struct gl_colorbuffer_attrib Color; - struct gl_current_attrib Current; - struct gl_depthbuffer_attrib Depth; - struct gl_eval_attrib Eval; - struct gl_fog_attrib Fog; - struct gl_hint_attrib Hint; - struct gl_light_attrib Light; - struct gl_line_attrib Line; - struct gl_list_attrib List; + /** \name Renderer attribute groups + * + * We define a struct for each attribute group to make pushing and popping + * attributes easy. Also it's a good organization. + */ + /*@{*/ + struct gl_accum_attrib Accum; /**< Accumulation buffer attributes */ + struct gl_colorbuffer_attrib Color; /**< Color buffers attributes */ + struct gl_current_attrib Current; /**< Current attributes */ + struct gl_depthbuffer_attrib Depth; /**< Depth buffer attributes */ + struct gl_eval_attrib Eval; /**< Eval attributes */ + struct gl_fog_attrib Fog; /**< Fog attributes */ + struct gl_hint_attrib Hint; /**< Hint attributes */ + struct gl_light_attrib Light; /**< Light attributes */ + struct gl_line_attrib Line; /**< Line attributes */ + struct gl_list_attrib List; /**< List attributes */ struct gl_multisample_attrib Multisample; - struct gl_pixel_attrib Pixel; - struct gl_point_attrib Point; - struct gl_polygon_attrib Polygon; - GLuint PolygonStipple[32]; - struct gl_scissor_attrib Scissor; - struct gl_stencil_attrib Stencil; - struct gl_texture_attrib Texture; - struct gl_transform_attrib Transform; - struct gl_viewport_attrib Viewport; - - /* Other attribute groups */ + struct gl_pixel_attrib Pixel; /**< Pixel attributes */ + struct gl_point_attrib Point; /**< Point attributes */ + struct gl_polygon_attrib Polygon; /**< Polygon attributes */ + GLuint PolygonStipple[32]; /**< Polygon stipple */ + struct gl_scissor_attrib Scissor; /**< Scissor attributes */ + struct gl_stencil_attrib Stencil; /**< Stencil buffer attributes */ + struct gl_texture_attrib Texture; /**< Texture attributes */ + struct gl_transform_attrib Transform; /**< Transformation attributes */ + struct gl_viewport_attrib Viewport; /**< Viewport attributes */ + /*@}*/ + + /** \name Other attribute groups */ + /*@{*/ struct gl_histogram_attrib Histogram; struct gl_minmax_attrib MinMax; struct gl_convolution_attrib Convolution1D; struct gl_convolution_attrib Convolution2D; struct gl_convolution_attrib Separable2D; + /*@}*/ - /* Client attribute stack */ + /** \name Client attribute stack */ + /*@{*/ GLuint ClientAttribStackDepth; struct gl_attrib_node *ClientAttribStack[MAX_CLIENT_ATTRIB_STACK_DEPTH]; + /*@}*/ - /* Client attribute groups */ - struct gl_array_attrib Array; /* Vertex arrays */ - struct gl_pixelstore_attrib Pack; /* Pixel packing */ - struct gl_pixelstore_attrib Unpack; /* Pixel unpacking */ + /** \name Client attribute groups */ + /*@{*/ + struct gl_array_attrib Array; /**< Vertex arrays */ + struct gl_pixelstore_attrib Pack; /**< Pixel packing */ + struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */ - struct gl_evaluators EvalMap; /* All evaluators */ - struct gl_feedback Feedback; /* Feedback */ - struct gl_selection Select; /* Selection */ + struct gl_evaluators EvalMap; /**< All evaluators */ + struct gl_feedback Feedback; /**< Feedback */ + struct gl_selection Select; /**< Selection */ - struct gl_color_table ColorTable; /* Pre-convolution */ - struct gl_color_table ProxyColorTable; /* Pre-convolution */ + struct gl_color_table ColorTable; /**< Pre-convolution */ + struct gl_color_table ProxyColorTable; /**< Pre-convolution */ struct gl_color_table PostConvolutionColorTable; struct gl_color_table ProxyPostConvolutionColorTable; struct gl_color_table PostColorMatrixColorTable; struct gl_color_table ProxyPostColorMatrixColorTable; - struct program_state Program; /* for vertex or fragment progs */ - struct vertex_program_state VertexProgram; /* GL_NV_vertex_program */ - struct fragment_program_state FragmentProgram; /* GL_NV_fragment_program */ + struct program_state Program; /**< for vertex or fragment progs */ + struct vertex_program_state VertexProgram; /**< GL_NV_vertex_program */ + struct fragment_program_state FragmentProgram; /**< GL_NV_fragment_program */ - struct occlusion_state Occlusion; /* GL_ARB_occlusion_query */ + struct occlusion_state Occlusion; /**< GL_ARB_occlusion_query */ - GLenum ErrorValue; /* Last error code */ - GLenum RenderMode; /* either GL_RENDER, GL_SELECT, GL_FEEDBACK */ - GLuint NewState; /* bitwise-or of _NEW_* flags */ + GLenum ErrorValue; /**< Last error code */ + GLenum RenderMode; /**< either GL_RENDER, GL_SELECT, GL_FEEDBACK */ + GLuint NewState; /**< bitwise-or of _NEW_* flags */ + /*@}*/ - /* Derived */ - GLuint _TriangleCaps; /* bitwise-or of DD_* flags */ - GLuint _ImageTransferState;/* bitwise-or of IMAGE_*_BIT flags */ + /** \name Derived */ + /*@{*/ + GLuint _TriangleCaps; /**< bitwise-or of DD_* flags */ + GLuint _ImageTransferState;/**< bitwise-or of IMAGE_*_BIT flags */ GLfloat _EyeZDir[3]; GLfloat _ModelViewInvScale; GLuint _NeedEyeCoords; - GLuint _NeedNormals; /* Are vertex normal vectors needed? */ + GLuint _ForceEyeCoords; + GLboolean _RotateMode; - struct gl_shine_tab *_ShineTable[2]; /* Active shine tables */ - struct gl_shine_tab *_ShineTabList; /* Mru list of inactive shine tables */ + struct gl_shine_tab *_ShineTable[2]; /**< Active shine tables */ + struct gl_shine_tab *_ShineTabList; /**< MRU list of inactive shine tables */ + /**@}*/ - struct gl_list_extensions listext; /* driver dlist extensions */ + struct gl_list_extensions listext; /**< driver dlist extensions */ GLboolean OcclusionResult; /**< for GL_HP_occlusion_test */ GLboolean OcclusionResultSaved; /**< for GL_HP_occlusion_test */ - GLuint _Facing; /* This is a hack for 2-sided stencil test. We don't */ - /* have a better way to communicate this value from */ - /* swrast_setup to swrast. */ + GLuint _Facing; /**< This is a hack for 2-sided stencil test. + * + * We don't have a better way to communicate this value from + * swrast_setup to swrast. */ - /* Z buffer stuff */ + /** \name Z buffer stuff */ + /*@{*/ GLuint DepthMax; /**< Max depth buffer value */ GLfloat DepthMaxF; /**< Float max depth buffer value */ GLfloat MRD; /**< minimum resolvable difference in Z values */ + /*@}*/ /** Should 3Dfx Glide driver catch signals? */ GLboolean CatchSignals; - /** For debugging/development only */ + /** \name For debugging/development only */ + /*@{*/ GLboolean NoRaster; GLboolean FirstTimeCurrent; + /*@}*/ /** Dither disable via MESA_NO_DITHER env var */ GLboolean NoDither; @@ -1895,22 +2173,26 @@ struct __GLcontextRec { void *TraceCtx; #endif - /* Core tnl module support */ + /** Core tnl module support */ struct gl_tnl_module TnlModule; - /* Hooks for module contexts. These will eventually live - * in the driver or elsewhere. + /** + * \name Hooks for module contexts. + * + * These will eventually live in the driver or elsewhere. */ + /*@{*/ void *swrast_context; void *swsetup_context; void *swtnl_context; void *swtnl_im; void *acache_context; void *aelt_context; + /*@}*/ }; -/* The string names for GL_POINT, GL_LINE_LOOP, etc */ +/** The string names for GL_POINT, GL_LINE_LOOP, etc */ extern const char *_mesa_prim_name[GL_POLYGON+4]; @@ -1950,7 +2232,17 @@ enum _debug { #define Elements(x) sizeof(x)/sizeof(*(x)) -/* Eventually let the driver specify what statechanges require a flush: +/** + * Flush vertices. + * + * \param ctx GL context. + * \param newstate new state. + * + * Checks if dd_function_table::NeedFlush is marked to flush stored vertices, + * and calls dd_function_table::FlushVertices if so. Marks + * __GLcontextRec::NewState with \p newstate. + * + * \todo Eventually let the driver specify what state changes require a flush: */ #define FLUSH_VERTICES(ctx, newstate) \ do { \ @@ -1961,6 +2253,16 @@ do { \ ctx->NewState |= newstate; \ } while (0) +/** + * Flush current state. + * + * \param ctx GL context. + * \param newstate new state. + * + * Checks if dd_function_table::NeedFlush is marked to flush current state, + * and calls dd_function_table::FlushVertices if so. Marks + * __GLcontextRec::NewState with \p newstate. + */ #define FLUSH_CURRENT(ctx, newstate) \ do { \ if (MESA_VERBOSE & VERBOSE_STATE) \ @@ -1970,6 +2272,13 @@ do { \ ctx->NewState |= newstate; \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ #define ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval) \ do { \ if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ @@ -1978,6 +2287,12 @@ do { \ } \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair. + * + * \param ctx GL context. + */ #define ASSERT_OUTSIDE_BEGIN_END(ctx) \ do { \ if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { \ @@ -1986,12 +2301,25 @@ do { \ } \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices. + * + * \param ctx GL context. + */ #define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx) \ do { \ ASSERT_OUTSIDE_BEGIN_END(ctx); \ FLUSH_VERTICES(ctx, 0); \ } while (0) +/** + * Macro to assert that the API call was made outside the + * glBegin()/glEnd() pair and flush the vertices, with return value. + * + * \param ctx GL context. + * \param retval value to return value in case the assertion fails. + */ #define ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, retval) \ do { \ ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, retval); \ @@ -1999,6 +2327,4 @@ do { \ } while (0) - - #endif /* TYPES_H */ diff --git a/src/mesa/main/nvfragparse.c b/src/mesa/main/nvfragparse.c index f9d66f4a253..38da4331971 100644 --- a/src/mesa/main/nvfragparse.c +++ b/src/mesa/main/nvfragparse.c @@ -24,7 +24,7 @@ /** * \file nvfragparse.c - * \brief NVIDIA fragment program parser. + * NVIDIA fragment program parser. * \author Brian Paul */ diff --git a/src/mesa/main/nvprogram.c b/src/mesa/main/nvprogram.c index 67f416dbc22..6c5c15a3ca1 100644 --- a/src/mesa/main/nvprogram.c +++ b/src/mesa/main/nvprogram.c @@ -24,7 +24,7 @@ /** * \file nvprogram.c - * \brief NVIDIA vertex/fragment program state management functions. + * NVIDIA vertex/fragment program state management functions. * \author Brian Paul */ diff --git a/src/mesa/main/nvvertexec.c b/src/mesa/main/nvvertexec.c index bacbea8343c..b81c2278a58 100644 --- a/src/mesa/main/nvvertexec.c +++ b/src/mesa/main/nvvertexec.c @@ -24,7 +24,7 @@ /** * \file nvvertexec.c - * \brief Code to execute vertex programs. + * Code to execute vertex programs. * \author Brian Paul */ diff --git a/src/mesa/main/nvvertparse.c b/src/mesa/main/nvvertparse.c index a06f02060e4..2e18c7abe43 100644 --- a/src/mesa/main/nvvertparse.c +++ b/src/mesa/main/nvvertparse.c @@ -24,7 +24,7 @@ /** * \file nvvertparse.c - * \brief NVIDIA vertex program parser. + * NVIDIA vertex program parser. * \author Brian Paul */ diff --git a/src/mesa/main/occlude.c b/src/mesa/main/occlude.c index 029e5d08946..4a5df2127ff 100644 --- a/src/mesa/main/occlude.c +++ b/src/mesa/main/occlude.c @@ -24,7 +24,7 @@ /* - * \brief Functions to implement the GL_ARB_occlusion_query extension. + * Functions to implement the GL_ARB_occlusion_query extension. */ diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c index db378226f8b..ce4be7eadc8 100644 --- a/src/mesa/main/pixel.c +++ b/src/mesa/main/pixel.c @@ -776,8 +776,6 @@ _mesa_PixelTransferi( GLenum pname, GLint param ) _mesa_PixelTransferf( pname, (GLfloat) param ); } - - /**********************************************************************/ /***** Pixel processing functions ******/ /**********************************************************************/ @@ -1326,3 +1324,199 @@ _mesa_chan_to_float_span(const GLcontext *ctx, GLuint n, } #endif } + +/**********************************************************************/ +/***** State Management *****/ +/**********************************************************************/ + +/* + * Return a bitmask of IMAGE_*_BIT flags which to indicate which + * pixel transfer operations are enabled. + */ +static void +update_image_transfer_state(GLcontext *ctx) +{ + GLuint mask = 0; + + if (ctx->Pixel.RedScale != 1.0F || ctx->Pixel.RedBias != 0.0F || + ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F || + ctx->Pixel.BlueScale != 1.0F || ctx->Pixel.BlueBias != 0.0F || + ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F) + mask |= IMAGE_SCALE_BIAS_BIT; + + if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) + mask |= IMAGE_SHIFT_OFFSET_BIT; + + if (ctx->Pixel.MapColorFlag) + mask |= IMAGE_MAP_COLOR_BIT; + + if (ctx->Pixel.ColorTableEnabled) + mask |= IMAGE_COLOR_TABLE_BIT; + + if (ctx->Pixel.Convolution1DEnabled || + ctx->Pixel.Convolution2DEnabled || + ctx->Pixel.Separable2DEnabled) { + mask |= IMAGE_CONVOLUTION_BIT; + if (ctx->Pixel.PostConvolutionScale[0] != 1.0F || + ctx->Pixel.PostConvolutionScale[1] != 1.0F || + ctx->Pixel.PostConvolutionScale[2] != 1.0F || + ctx->Pixel.PostConvolutionScale[3] != 1.0F || + ctx->Pixel.PostConvolutionBias[0] != 0.0F || + ctx->Pixel.PostConvolutionBias[1] != 0.0F || + ctx->Pixel.PostConvolutionBias[2] != 0.0F || + ctx->Pixel.PostConvolutionBias[3] != 0.0F) { + mask |= IMAGE_POST_CONVOLUTION_SCALE_BIAS; + } + } + + if (ctx->Pixel.PostConvolutionColorTableEnabled) + mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT; + + if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY || + ctx->Pixel.PostColorMatrixScale[0] != 1.0F || + ctx->Pixel.PostColorMatrixBias[0] != 0.0F || + ctx->Pixel.PostColorMatrixScale[1] != 1.0F || + ctx->Pixel.PostColorMatrixBias[1] != 0.0F || + ctx->Pixel.PostColorMatrixScale[2] != 1.0F || + ctx->Pixel.PostColorMatrixBias[2] != 0.0F || + ctx->Pixel.PostColorMatrixScale[3] != 1.0F || + ctx->Pixel.PostColorMatrixBias[3] != 0.0F) + mask |= IMAGE_COLOR_MATRIX_BIT; + + if (ctx->Pixel.PostColorMatrixColorTableEnabled) + mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT; + + if (ctx->Pixel.HistogramEnabled) + mask |= IMAGE_HISTOGRAM_BIT; + + if (ctx->Pixel.MinMaxEnabled) + mask |= IMAGE_MIN_MAX_BIT; + + ctx->_ImageTransferState = mask; +} + + +void _mesa_update_pixel( GLcontext *ctx, GLuint new_state ) +{ + if (new_state & _NEW_COLOR_MATRIX) + _math_matrix_analyse( ctx->ColorMatrixStack.Top ); + + /* References ColorMatrix.type (derived above). + */ + if (new_state & _IMAGE_NEW_TRANSFER_STATE) + update_image_transfer_state(ctx); +} + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_pixel( GLcontext * ctx ) +{ + int i; + + /* Pixel group */ + ctx->Pixel.RedBias = 0.0; + ctx->Pixel.RedScale = 1.0; + ctx->Pixel.GreenBias = 0.0; + ctx->Pixel.GreenScale = 1.0; + ctx->Pixel.BlueBias = 0.0; + ctx->Pixel.BlueScale = 1.0; + ctx->Pixel.AlphaBias = 0.0; + ctx->Pixel.AlphaScale = 1.0; + ctx->Pixel.DepthBias = 0.0; + ctx->Pixel.DepthScale = 1.0; + ctx->Pixel.IndexOffset = 0; + ctx->Pixel.IndexShift = 0; + ctx->Pixel.ZoomX = 1.0; + ctx->Pixel.ZoomY = 1.0; + ctx->Pixel.MapColorFlag = GL_FALSE; + ctx->Pixel.MapStencilFlag = GL_FALSE; + ctx->Pixel.MapStoSsize = 1; + ctx->Pixel.MapItoIsize = 1; + ctx->Pixel.MapItoRsize = 1; + ctx->Pixel.MapItoGsize = 1; + ctx->Pixel.MapItoBsize = 1; + ctx->Pixel.MapItoAsize = 1; + ctx->Pixel.MapRtoRsize = 1; + ctx->Pixel.MapGtoGsize = 1; + ctx->Pixel.MapBtoBsize = 1; + ctx->Pixel.MapAtoAsize = 1; + ctx->Pixel.MapStoS[0] = 0; + ctx->Pixel.MapItoI[0] = 0; + ctx->Pixel.MapItoR[0] = 0.0; + ctx->Pixel.MapItoG[0] = 0.0; + ctx->Pixel.MapItoB[0] = 0.0; + ctx->Pixel.MapItoA[0] = 0.0; + ctx->Pixel.MapItoR8[0] = 0; + ctx->Pixel.MapItoG8[0] = 0; + ctx->Pixel.MapItoB8[0] = 0; + ctx->Pixel.MapItoA8[0] = 0; + ctx->Pixel.MapRtoR[0] = 0.0; + ctx->Pixel.MapGtoG[0] = 0.0; + ctx->Pixel.MapBtoB[0] = 0.0; + ctx->Pixel.MapAtoA[0] = 0.0; + ctx->Pixel.HistogramEnabled = GL_FALSE; + ctx->Pixel.MinMaxEnabled = GL_FALSE; + ctx->Pixel.PixelTextureEnabled = GL_FALSE; + ctx->Pixel.FragmentRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; + ctx->Pixel.FragmentAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; + ASSIGN_4V(ctx->Pixel.PostColorMatrixScale, 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.PostColorMatrixBias, 0.0, 0.0, 0.0, 0.0); + ASSIGN_4V(ctx->Pixel.ColorTableScale, 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.ColorTableBias, 0.0, 0.0, 0.0, 0.0); + ASSIGN_4V(ctx->Pixel.PCCTscale, 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.PCCTbias, 0.0, 0.0, 0.0, 0.0); + ASSIGN_4V(ctx->Pixel.PCMCTscale, 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.PCMCTbias, 0.0, 0.0, 0.0, 0.0); + ctx->Pixel.ColorTableEnabled = GL_FALSE; + ctx->Pixel.PostConvolutionColorTableEnabled = GL_FALSE; + ctx->Pixel.PostColorMatrixColorTableEnabled = GL_FALSE; + ctx->Pixel.Convolution1DEnabled = GL_FALSE; + ctx->Pixel.Convolution2DEnabled = GL_FALSE; + ctx->Pixel.Separable2DEnabled = GL_FALSE; + for (i = 0; i < 3; i++) { + ASSIGN_4V(ctx->Pixel.ConvolutionBorderColor[i], 0.0, 0.0, 0.0, 0.0); + ctx->Pixel.ConvolutionBorderMode[i] = GL_REDUCE; + ASSIGN_4V(ctx->Pixel.ConvolutionFilterScale[i], 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.ConvolutionFilterBias[i], 0.0, 0.0, 0.0, 0.0); + } + for (i = 0; i < MAX_CONVOLUTION_WIDTH * MAX_CONVOLUTION_WIDTH * 4; i++) { + ctx->Convolution1D.Filter[i] = 0.0; + ctx->Convolution2D.Filter[i] = 0.0; + ctx->Separable2D.Filter[i] = 0.0; + } + ASSIGN_4V(ctx->Pixel.PostConvolutionScale, 1.0, 1.0, 1.0, 1.0); + ASSIGN_4V(ctx->Pixel.PostConvolutionBias, 0.0, 0.0, 0.0, 0.0); + + /* Pixel transfer */ + ctx->Pack.Alignment = 4; + ctx->Pack.RowLength = 0; + ctx->Pack.ImageHeight = 0; + ctx->Pack.SkipPixels = 0; + ctx->Pack.SkipRows = 0; + ctx->Pack.SkipImages = 0; + ctx->Pack.SwapBytes = GL_FALSE; + ctx->Pack.LsbFirst = GL_FALSE; + ctx->Unpack.Alignment = 4; + ctx->Unpack.RowLength = 0; + ctx->Unpack.ImageHeight = 0; + ctx->Unpack.SkipPixels = 0; + ctx->Unpack.SkipRows = 0; + ctx->Unpack.SkipImages = 0; + ctx->Unpack.SwapBytes = GL_FALSE; + ctx->Unpack.LsbFirst = GL_FALSE; + + if (ctx->Visual.doubleBufferMode) { + ctx->Pixel.ReadBuffer = GL_BACK; + ctx->Pixel._ReadSrcMask = BACK_LEFT_BIT; + } + else { + ctx->Pixel.ReadBuffer = GL_FRONT; + ctx->Pixel._ReadSrcMask = FRONT_LEFT_BIT; + } + + /* Miscellaneous */ + ctx->_ImageTransferState = 0; +} diff --git a/src/mesa/main/pixel.h b/src/mesa/main/pixel.h index 48138e08389..e5594537693 100644 --- a/src/mesa/main/pixel.h +++ b/src/mesa/main/pixel.h @@ -1,3 +1,7 @@ +/** + * \file pixel.h + * Pixel operations. + */ /* * Mesa 3-D graphics library @@ -31,10 +35,8 @@ #include "mtypes.h" -/* - * API functions - */ - +/** \name API functions */ +/*@*/ extern void _mesa_GetPixelMapfv( GLenum map, GLfloat *values ); @@ -69,11 +71,11 @@ _mesa_PixelTransferi( GLenum pname, GLint param ); extern void _mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor ); +/*@}*/ -/* - * Pixel processing functions - */ +/** \name Pixel processing functions */ +/*@{*/ extern void _mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4], @@ -135,4 +137,12 @@ _mesa_chan_to_float_span(const GLcontext *ctx, GLuint n, CONST GLchan rgba[][4], GLfloat rgbaf[][4]); +extern void +_mesa_update_pixel( GLcontext *ctx, GLuint newstate ); + +extern void +_mesa_init_pixel( GLcontext * ctx ); + +/*@}*/ + #endif diff --git a/src/mesa/main/points.c b/src/mesa/main/points.c index 272a47de1b0..5d332a8e199 100644 --- a/src/mesa/main/points.c +++ b/src/mesa/main/points.c @@ -1,3 +1,7 @@ +/** + * \file points.c + * Point operations. + */ /* * Mesa 3-D graphics library @@ -32,7 +36,19 @@ #include "mtypes.h" - +/** + * Set the point size. + * + * \param size pointer diameter. + * + * \sa glPointSize(). + * + * Verifies the parameter and updates gl_point_attrib::Size. On a change, + * flushes the vertices, updates the clamped point size and marks the + * DD_POINT_SIZE flag in __GLcontextRec::_TriangleCaps for the drivers if the + * size is different from one. Notifies the driver via + * the dd_function_table::PointSize callback. + */ void _mesa_PointSize( GLfloat size ) { @@ -63,6 +79,7 @@ _mesa_PointSize( GLfloat size ) } +#if _HAVE_FULL_GL /* * Added by GL_NV_point_sprite @@ -127,7 +144,6 @@ _mesa_PointParameterfvEXT( GLenum pname, const GLfloat *params) if (tmp != ctx->Point._Attenuated) { ctx->_TriangleCaps ^= DD_POINT_ATTEN; - ctx->_NeedEyeCoords ^= NEED_EYE_POINT_ATTEN; } } else { @@ -218,3 +234,35 @@ _mesa_PointParameterfvEXT( GLenum pname, const GLfloat *params) if (ctx->Driver.PointParameterfv) (*ctx->Driver.PointParameterfv)(ctx, pname, params); } +#endif + + +/** + * Initialize the context point state. + * + * \param ctx GL context. + * + * Initializes __GLcontextRec::Point and point related constants in + * __GLcontextRec::Const. + */ +void _mesa_init_point( GLcontext * ctx ) +{ + int i; + + /* Point group */ + ctx->Point.SmoothFlag = GL_FALSE; + ctx->Point.Size = 1.0; + ctx->Point._Size = 1.0; + ctx->Point.Params[0] = 1.0; + ctx->Point.Params[1] = 0.0; + ctx->Point.Params[2] = 0.0; + ctx->Point._Attenuated = GL_FALSE; + ctx->Point.MinSize = 0.0; + ctx->Point.MaxSize = ctx->Const.MaxPointSize; + ctx->Point.Threshold = 1.0; + ctx->Point.PointSprite = GL_FALSE; /* GL_NV_point_sprite */ + ctx->Point.SpriteRMode = GL_ZERO; /* GL_NV_point_sprite */ + for (i = 0; i < MAX_TEXTURE_UNITS; i++) { + ctx->Point.CoordReplace[i] = GL_FALSE; /* GL_NV_point_sprite */ + } +} diff --git a/src/mesa/main/points.h b/src/mesa/main/points.h index da57fba7a7c..7a4a77caa9b 100644 --- a/src/mesa/main/points.h +++ b/src/mesa/main/points.h @@ -1,3 +1,7 @@ +/** + * \file points.h + * Point operations. + */ /* * Mesa 3-D graphics library @@ -46,5 +50,8 @@ _mesa_PointParameterfEXT( GLenum pname, GLfloat param ); extern void _mesa_PointParameterfvEXT( GLenum pname, const GLfloat *params ); +extern void +_mesa_init_point( GLcontext * ctx ); + #endif diff --git a/src/mesa/main/polygon.c b/src/mesa/main/polygon.c index dd4f44ec363..1051c8ce179 100644 --- a/src/mesa/main/polygon.c +++ b/src/mesa/main/polygon.c @@ -1,3 +1,7 @@ +/** + * \file polygon.c + * Polygon operations. + */ /* * Mesa 3-D graphics library @@ -34,6 +38,17 @@ #include "mtypes.h" +/** + * Specify whether to cull front- or back-facing facets. + * + * \param mode culling mode. + * + * \sa glCullFace(). + * + * Verifies the parameter and updates gl_polygon_attrib::CullFaceMode. On + * change, flushes the vertices and notifies the driver via + * the dd_function_table::CullFace callback. + */ void _mesa_CullFace( GLenum mode ) { @@ -59,7 +74,17 @@ _mesa_CullFace( GLenum mode ) } - +/** + * Define front- and back-facing + * + * \param mode orientation of front-facing polygons. + * + * \sa glFrontFace(). + * + * Verifies the parameter and updates gl_polygon_attrib::FrontFace. On change + * flushes the vertices and notifies the driver via + * the dd_function_table::FrontFace callback. + */ void _mesa_FrontFace( GLenum mode ) { @@ -87,7 +112,18 @@ _mesa_FrontFace( GLenum mode ) } - +/** + * Set the polygon rasterization mode. + * + * \param face the polygons which \p mode applies to. + * \param mode how polygons should be rasterized. + * + * \sa glPolygonMode(). + * + * Verifies the parameters and updates gl_polygon_attrib::FrontMode and + * gl_polygon_attrib::BackMode. On change flushes the vertices and notifies the + * driver via the dd_function_table::PolygonMode callback. + */ void _mesa_PolygonMode( GLenum face, GLenum mode ) { @@ -139,7 +175,7 @@ _mesa_PolygonMode( GLenum face, GLenum mode ) } } - +#if _HAVE_FULL_GL void _mesa_PolygonStipple( const GLubyte *pattern ) @@ -172,7 +208,6 @@ _mesa_GetPolygonStipple( GLubyte *dest ) } - void _mesa_PolygonOffset( GLfloat factor, GLfloat units ) { @@ -202,3 +237,68 @@ _mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias ) GET_CURRENT_CONTEXT(ctx); _mesa_PolygonOffset(factor, bias * ctx->DepthMaxF ); } + +#endif + + +/**********************************************************************/ +/** \name State Management */ +/*@{*/ + +/* + * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET + * in ctx->_TriangleCaps if needed. + */ +void _mesa_update_polygon( GLcontext *ctx ) +{ + ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET); + + if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) + ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; + + /* Any Polygon offsets enabled? */ + if (ctx->Polygon.OffsetPoint || + ctx->Polygon.OffsetLine || + ctx->Polygon.OffsetFill) { + ctx->_TriangleCaps |= DD_TRI_OFFSET; + } +} + +/*@}*/ + + +/**********************************************************************/ +/** \name Initialization */ +/*@{*/ + +/** + * Initialize the context polygon state. + * + * \param ctx GL context. + * + * Initializes __GLcontextRec::Polygon and __GLcontextRec::PolygonStipple + * attribute groups. + */ +void _mesa_init_polygon( GLcontext * ctx ) +{ + /* Polygon group */ + ctx->Polygon.CullFlag = GL_FALSE; + ctx->Polygon.CullFaceMode = GL_BACK; + ctx->Polygon.FrontFace = GL_CCW; + ctx->Polygon._FrontBit = 0; + ctx->Polygon.FrontMode = GL_FILL; + ctx->Polygon.BackMode = GL_FILL; + ctx->Polygon.SmoothFlag = GL_FALSE; + ctx->Polygon.StippleFlag = GL_FALSE; + ctx->Polygon.OffsetFactor = 0.0F; + ctx->Polygon.OffsetUnits = 0.0F; + ctx->Polygon.OffsetPoint = GL_FALSE; + ctx->Polygon.OffsetLine = GL_FALSE; + ctx->Polygon.OffsetFill = GL_FALSE; + + + /* Polygon Stipple group */ + MEMSET( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) ); +} + +/*@}*/ diff --git a/src/mesa/main/polygon.h b/src/mesa/main/polygon.h index 81b67ff5468..ec0735b1080 100644 --- a/src/mesa/main/polygon.h +++ b/src/mesa/main/polygon.h @@ -1,3 +1,7 @@ +/** + * \file polygon.h + * Polygon operations. + */ /* * Mesa 3-D graphics library @@ -52,5 +56,10 @@ _mesa_PolygonStipple( const GLubyte *mask ); extern void _mesa_GetPolygonStipple( GLubyte *mask ); +extern void +_mesa_update_polygon( GLcontext *ctx ); + +extern void +_mesa_init_polygon( GLcontext * ctx ); #endif diff --git a/src/mesa/main/rastpos.c b/src/mesa/main/rastpos.c index 3c48a3afece..77d84a50b68 100644 --- a/src/mesa/main/rastpos.c +++ b/src/mesa/main/rastpos.c @@ -1,3 +1,8 @@ +/** + * \file rastpos.c + * Raster position operations. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -24,7 +29,7 @@ #include "glheader.h" -#include "clip.h" +/*#include "clip.h"*/ #include "colormac.h" #include "context.h" #include "feedback.h" @@ -36,13 +41,14 @@ #include "mtypes.h" #include "math/m_matrix.h" -#include "math/m_xform.h" /** * Clip a point against the view volume. - * \param v vertex-vector describing the point to clip - * \return 0 = outside view volume, 1 = inside view volume + * + * \param v vertex vector describing the point to clip. + * + * \return zero if outside view volume, or one if inside. */ static GLuint viewclip_point( const GLfloat v[] ) @@ -58,7 +64,13 @@ viewclip_point( const GLfloat v[] ) } -/* As above, but only clip test against far/near Z planes */ +/** + * Clip a point against the far/near Z clipping planes. + * + * \param v vertex vector describing the point to clip. + * + * \return zero if outside view volume, or one if inside. + */ static GLuint viewclip_point_z( const GLfloat v[] ) { @@ -71,11 +83,13 @@ viewclip_point_z( const GLfloat v[] ) } - /** * Clip a point against the user clipping planes. - * \param v vertex-vector describing the point to clip. - * \return 0 = point was clipped, 1 = point not clipped + * + * \param ctx GL context. + * \param v vertex vector describing the point to clip. + * + * \return zero if the point was clipped, or one otherwise. */ static GLuint userclip_point( GLcontext *ctx, const GLfloat v[] ) @@ -102,12 +116,12 @@ userclip_point( GLcontext *ctx, const GLfloat v[] ) * This has been split off to allow the normal shade routines to * get a little closer to the vertex buffer, and to use the * GLvector objects directly. - * Input: ctx - the context - * vertex - vertex location - * normal - normal vector - * Output: Rcolor - returned color - * Rspec - returned specular color (if separate specular enabled) - * Rindex - returned color index + * \param ctx the context + * \param vertex vertex location + * \param normal normal vector + * \param Rcolor returned color + * \param Rspec returned specular color (if separate specular enabled) + * \param Rindex returned color index */ static void shade_rastpos(GLcontext *ctx, @@ -265,8 +279,23 @@ shade_rastpos(GLcontext *ctx, /** + * Set the raster position for pixel operations. + * * All glRasterPos command call this function to update the current * raster position. + * + * \param ctx GL context. + * \param x x coordinate for the raster position. + * \param y y coordinate for the raster position. + * \param z z coordinate for the raster position. + * \param w w coordinate for the raster position. + * + * \sa Called by _mesa_RasterPos4f(). + * + * Flushes the vertices, transforms and clips the vertex coordinates, and + * finally sets the current raster position and associated data in + * __GLcontextRec::Current. When in selection mode calls + * _mesa_update_hitflag() with the current raster position. */ static void raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w) @@ -305,7 +334,6 @@ raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w) ctx->Current.RasterColor, ctx->Current.RasterSecondaryColor, &ctx->Current.RasterIndex ); - } else { /* use current color or index */ @@ -382,60 +410,70 @@ raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w) } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2d(GLdouble x, GLdouble y) { _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2f(GLfloat x, GLfloat y) { _mesa_RasterPos4f(x, y, 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2i(GLint x, GLint y) { _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2s(GLshort x, GLshort y) { _mesa_RasterPos4f(x, y, 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3d(GLdouble x, GLdouble y, GLdouble z) { _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3f(GLfloat x, GLfloat y, GLfloat z) { _mesa_RasterPos4f(x, y, z, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3i(GLint x, GLint y, GLint z) { _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3s(GLshort x, GLshort y, GLshort z) { _mesa_RasterPos4f(x, y, z, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4d(GLdouble x, GLdouble y, GLdouble z, GLdouble w) { _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); } +/** Calls raster_pos4f() */ void _mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) { @@ -443,66 +481,77 @@ _mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) raster_pos4f(ctx, x, y, z, w); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4i(GLint x, GLint y, GLint z, GLint w) { _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4s(GLshort x, GLshort y, GLshort z, GLshort w) { _mesa_RasterPos4f(x, y, z, w); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2dv(const GLdouble *v) { _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2fv(const GLfloat *v) { _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2iv(const GLint *v) { _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos2sv(const GLshort *v) { _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3dv(const GLdouble *v) { _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3fv(const GLfloat *v) { _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3iv(const GLint *v) { _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos3sv(const GLshort *v) { _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4dv(const GLdouble *v) { @@ -510,12 +559,14 @@ _mesa_RasterPos4dv(const GLdouble *v) (GLfloat) v[2], (GLfloat) v[3]); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4fv(const GLfloat *v) { _mesa_RasterPos4f(v[0], v[1], v[2], v[3]); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4iv(const GLint *v) { @@ -523,6 +574,7 @@ _mesa_RasterPos4iv(const GLint *v) (GLfloat) v[2], (GLfloat) v[3]); } +/** Calls _mesa_RasterPos4f() */ void _mesa_RasterPos4sv(const GLshort *v) { @@ -534,7 +586,7 @@ _mesa_RasterPos4sv(const GLshort *v) /*** GL_ARB_window_pos / GL_MESA_window_pos ***/ /**********************************************************************/ - +#if FEATURE_windowpos /** * All glWindowPosMESA and glWindowPosARB commands call this function to * update the current raster position. @@ -758,7 +810,7 @@ _mesa_WindowPos4svMESA(const GLshort *v) window_pos4f(v[0], v[1], v[2], v[3]); } - +#endif #if 0 @@ -797,3 +849,57 @@ void glWindowPos4fMESA( GLfloat x, GLfloat y, GLfloat z, GLfloat w ) } #endif + + +/**********************************************************************/ +/** \name Initialization */ +/**********************************************************************/ +/*@{*/ + +/** + * Initialize the context current raster position information. + * + * \param ctx GL context. + * + * Initialize the current raster position information in + * __GLcontextRec::Current, and adds the extension entry points to the + * dispatcher. + */ +void _mesa_init_rastpos( GLcontext * ctx ) +{ + int i; + + ASSIGN_4V( ctx->Current.RasterPos, 0.0, 0.0, 0.0, 1.0 ); + ctx->Current.RasterDistance = 0.0; + ASSIGN_4V( ctx->Current.RasterColor, 1.0, 1.0, 1.0, 1.0 ); + ctx->Current.RasterIndex = 1; + for (i=0; i<MAX_TEXTURE_UNITS; i++) + ASSIGN_4V( ctx->Current.RasterTexCoords[i], 0.0, 0.0, 0.0, 1.0 ); + ctx->Current.RasterPosValid = GL_TRUE; + + /* + * For XFree86/DRI: tell libGL to add these functions to the dispatcher. + * Basically, we should add all extension functions above offset 577. + * This enables older libGL libraries to work with newer drivers that + * have newer extensions. + */ + /* GL_ARB_window_pos aliases with GL_MESA_window_pos */ + _glapi_add_entrypoint("glWindowPos2dARB", 513); + _glapi_add_entrypoint("glWindowPos2dvARB", 514); + _glapi_add_entrypoint("glWindowPos2fARB", 515); + _glapi_add_entrypoint("glWindowPos2fvARB", 516); + _glapi_add_entrypoint("glWindowPos2iARB", 517); + _glapi_add_entrypoint("glWindowPos2ivARB", 518); + _glapi_add_entrypoint("glWindowPos2sARB", 519); + _glapi_add_entrypoint("glWindowPos2svARB", 520); + _glapi_add_entrypoint("glWindowPos3dARB", 521); + _glapi_add_entrypoint("glWindowPos3dvARB", 522); + _glapi_add_entrypoint("glWindowPos3fARB", 523); + _glapi_add_entrypoint("glWindowPos3fvARB", 524); + _glapi_add_entrypoint("glWindowPos3iARB", 525); + _glapi_add_entrypoint("glWindowPos3ivARB", 526); + _glapi_add_entrypoint("glWindowPos3sARB", 527); + _glapi_add_entrypoint("glWindowPos3svARB", 528); +} + +/*@}*/ diff --git a/src/mesa/main/rastpos.h b/src/mesa/main/rastpos.h index 3d18cb91c5f..ae7278c4700 100644 --- a/src/mesa/main/rastpos.h +++ b/src/mesa/main/rastpos.h @@ -1,3 +1,7 @@ +/** + * \file rastpos.h + * Raster position operations. + */ /* * Mesa 3-D graphics library @@ -105,8 +109,9 @@ _mesa_RasterPos4sv(const GLshort *v); /**********************************************************************/ -/*** GL_MESA_window_pos ***/ +/** \name GL_MESA_window_pos */ /**********************************************************************/ +/*@{*/ extern void _mesa_WindowPos2dMESA(GLdouble x, GLdouble y); @@ -180,5 +185,9 @@ _mesa_WindowPos4ivMESA(const GLint *v); extern void _mesa_WindowPos4svMESA(const GLshort *v); +extern void +_mesa_init_rastpos( GLcontext * ctx ); + +/*@}*/ #endif diff --git a/src/mesa/main/simple_list.h b/src/mesa/main/simple_list.h index 2d9d4c8453c..63475f6f740 100644 --- a/src/mesa/main/simple_list.h +++ b/src/mesa/main/simple_list.h @@ -1,3 +1,13 @@ +/** + * \file simple_list.h + * Simple macros for type-safe, intrusive lists. + * + * Intended to work with a list sentinal which is created as an empty + * list. Insert & delete are O(1). + * + * \author + * (C) 1997, Keith Whitwell + */ /* * Mesa 3-D graphics library @@ -23,23 +33,27 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/* Simple macros for typesafe, intrusive lists. - * (C) 1997, Keith Whitwell - * - * Intended to work with a list sentinal which is created as an empty - * list. Insert & delete are O(1). - */ - #ifndef _SIMPLE_LIST_H #define _SIMPLE_LIST_H +/** + * Remove an element from list. + * + * \param elem element to remove. + */ #define remove_from_list(elem) \ do { \ (elem)->next->prev = (elem)->prev; \ (elem)->prev->next = (elem)->next; \ } while (0) +/** + * Insert an element to the list head. + * + * \param list list. + * \param elem element to insert. + */ #define insert_at_head(list, elem) \ do { \ (elem)->prev = list; \ @@ -48,6 +62,12 @@ do { \ (list)->next = elem; \ } while(0) +/** + * Insert an element to the list tail. + * + * \param list list. + * \param elem element to insert. + */ #define insert_at_tail(list, elem) \ do { \ (elem)->next = list; \ @@ -56,42 +76,122 @@ do { \ (list)->prev = elem; \ } while(0) +/** + * Move an element to the list head. + * + * \param list list. + * \param elem element to move. + */ #define move_to_head(list, elem) \ do { \ remove_from_list(elem); \ insert_at_head(list, elem); \ } while (0) +/** + * Move an element to the list tail. + * + * \param list list. + * \param elem element to move. + */ #define move_to_tail(list, elem) \ do { \ remove_from_list(elem); \ insert_at_tail(list, elem); \ } while (0) - +/** + * Make a empty list empty. + * + * \param sentinal list (sentinal element). + */ #define make_empty_list(sentinal) \ do { \ (sentinal)->next = sentinal; \ (sentinal)->prev = sentinal; \ } while (0) - +/** + * Get list first element. + * + * \param list list. + * + * \return pointer to first element. + */ #define first_elem(list) ((list)->next) + +/** + * Get list last element. + * + * \param list list. + * + * \return pointer to last element. + */ #define last_elem(list) ((list)->prev) + +/** + * Get next element. + * + * \param elem element. + * + * \return pointer to next element. + */ #define next_elem(elem) ((elem)->next) + +/** + * Get previous element. + * + * \param elem element. + * + * \return pointer to previous element. + */ #define prev_elem(elem) ((elem)->prev) + +/** + * Test whether element is at end of the list. + * + * \param list list. + * \param elem element. + * + * \return non-zero if element is at end of list, or zero otherwise. + */ #define at_end(list, elem) ((elem) == (list)) + +/** + * Test if a list is empty. + * + * \param list list. + * + * \return non-zero if list empty, or zero otherwise. + */ #define is_empty_list(list) ((list)->next == (list)) +/** + * Walk through the elements of a list. + * + * \param ptr pointer to the current element. + * \param list list. + * + * \note It should be followed by a { } block or a single statement, as in a \c + * for loop. + */ #define foreach(ptr, list) \ for( ptr=(list)->next ; ptr!=list ; ptr=(ptr)->next ) -/* Kludgey - Lets you unlink the current value during a list - * traversal. Useful for free()-ing a list, element - * by element. +/** + * Walk through the elements of a list. + * + * Same as #foreach but lets you unlink the current value during a list + * traversal. Useful for freeing a list, element by element. + * + * \param ptr pointer to the current element. + * \param t temporary pointer. + * \param list list. + * + * \note It should be followed by a { } block or a single statement, as in a \c + * for loop. */ #define foreach_s(ptr, t, list) \ for(ptr=(list)->next,t=(ptr)->next; list != ptr; ptr=t, t=(t)->next) - #endif diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c index 2851b8e083b..2683556f02a 100644 --- a/src/mesa/main/state.c +++ b/src/mesa/main/state.c @@ -1,3 +1,11 @@ +/** + * \file state.c + * State management. + * + * This file manages recalculation of derived values in the __GLcontextRec. + * Also, this is where we initialize the API dispatch table. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -23,12 +31,6 @@ */ -/* - * /brief This file manages recalculation of derived values in the - * __GLcontext. Also, this is where we initialize the API dispatch table. - */ - - #include "glheader.h" #include "accum.h" #include "api_loopback.h" @@ -79,24 +81,37 @@ #if FEATURE_NV_fragment_program #include "nvfragprog.h" #endif +#include "debug.h" + +/* #include "math/m_matrix.h" */ +/* #include "math/m_xform.h" */ -#include "math/m_matrix.h" -#include "math/m_xform.h" +/**********************************************************************/ +/** \name Dispatch table setup */ +/*@{*/ +/** + * Generic no-op dispatch function. + * + * Used in replacement of the functions which are not part of Mesa subset. + * + * Displays a message. + */ static int generic_noop(void) { -#ifdef DEBUG - _mesa_problem(NULL, "User called no-op dispatch function"); -#endif + _mesa_problem(NULL, "User called no-op dispatch function (not part of Mesa subset?)"); return 0; } -/* +/** * Set all pointers in the given dispatch table to point to a - * generic no-op function. + * generic no-op function - generic_noop(). + * + * \param table dispatch table. + * \param tableSize dispatch table size. */ void _mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize) @@ -109,13 +124,15 @@ _mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize) } - -/* - * Initialize the given dispatch table with pointers to Mesa's - * immediate-mode commands. +/** + * Initialize a dispatch table with pointers to Mesa's immediate-mode + * commands. + * + * Pointers to glBegin()/glEnd() object commands and a few others + * are provided via the GLvertexformat interface. * - * Pointers to begin/end object commands and a few others - * are provided via the vtxfmt interface elsewhere. + * \param exec dispatch table. + * \param tableSize dispatch table size. */ void _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) @@ -123,51 +140,90 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) /* first initialize all dispatch slots to no-op */ _mesa_init_no_op_table(exec, tableSize); +#if _HAVE_FULL_GL _mesa_loopback_init_api_table( exec, GL_TRUE ); +#endif /* load the dispatch slots we understand */ - exec->Accum = _mesa_Accum; exec->AlphaFunc = _mesa_AlphaFunc; - exec->Bitmap = _mesa_Bitmap; exec->BlendFunc = _mesa_BlendFunc; + exec->Clear = _mesa_Clear; + exec->ClearColor = _mesa_ClearColor; + exec->ClearStencil = _mesa_ClearStencil; + exec->ColorMask = _mesa_ColorMask; + exec->CullFace = _mesa_CullFace; + exec->Disable = _mesa_Disable; + exec->DrawBuffer = _mesa_DrawBuffer; + exec->Enable = _mesa_Enable; + exec->Finish = _mesa_Finish; + exec->Flush = _mesa_Flush; + exec->FrontFace = _mesa_FrontFace; + exec->Frustum = _mesa_Frustum; + exec->GetError = _mesa_GetError; + exec->GetFloatv = _mesa_GetFloatv; + exec->GetString = _mesa_GetString; + exec->InitNames = _mesa_InitNames; + exec->LineStipple = _mesa_LineStipple; + exec->LineWidth = _mesa_LineWidth; + exec->LoadIdentity = _mesa_LoadIdentity; + exec->LoadMatrixf = _mesa_LoadMatrixf; + exec->LoadName = _mesa_LoadName; + exec->LogicOp = _mesa_LogicOp; + exec->MatrixMode = _mesa_MatrixMode; + exec->MultMatrixf = _mesa_MultMatrixf; + exec->Ortho = _mesa_Ortho; + exec->PixelStorei = _mesa_PixelStorei; + exec->PopMatrix = _mesa_PopMatrix; + exec->PopName = _mesa_PopName; + exec->PushMatrix = _mesa_PushMatrix; + exec->PushName = _mesa_PushName; + exec->RasterPos2f = _mesa_RasterPos2f; + exec->RasterPos2fv = _mesa_RasterPos2fv; + exec->RasterPos2i = _mesa_RasterPos2i; + exec->RasterPos2iv = _mesa_RasterPos2iv; + exec->ReadBuffer = _mesa_ReadBuffer; + exec->RenderMode = _mesa_RenderMode; + exec->Rotatef = _mesa_Rotatef; + exec->Scalef = _mesa_Scalef; + exec->Scissor = _mesa_Scissor; + exec->SelectBuffer = _mesa_SelectBuffer; + exec->ShadeModel = _mesa_ShadeModel; + exec->StencilFunc = _mesa_StencilFunc; + exec->StencilMask = _mesa_StencilMask; + exec->StencilOp = _mesa_StencilOp; + exec->TexEnvfv = _mesa_TexEnvfv; + exec->TexEnvi = _mesa_TexEnvi; + exec->TexImage2D = _mesa_TexImage2D; + exec->TexParameteri = _mesa_TexParameteri; + exec->Translatef = _mesa_Translatef; + exec->Viewport = _mesa_Viewport; +#if _HAVE_FULL_GL + exec->Accum = _mesa_Accum; + exec->Bitmap = _mesa_Bitmap; exec->CallList = _mesa_CallList; exec->CallLists = _mesa_CallLists; - exec->Clear = _mesa_Clear; exec->ClearAccum = _mesa_ClearAccum; - exec->ClearColor = _mesa_ClearColor; exec->ClearDepth = _mesa_ClearDepth; exec->ClearIndex = _mesa_ClearIndex; - exec->ClearStencil = _mesa_ClearStencil; exec->ClipPlane = _mesa_ClipPlane; - exec->ColorMask = _mesa_ColorMask; exec->ColorMaterial = _mesa_ColorMaterial; exec->CopyPixels = _mesa_CopyPixels; - exec->CullFace = _mesa_CullFace; exec->DeleteLists = _mesa_DeleteLists; exec->DepthFunc = _mesa_DepthFunc; exec->DepthMask = _mesa_DepthMask; exec->DepthRange = _mesa_DepthRange; - exec->Disable = _mesa_Disable; - exec->DrawBuffer = _mesa_DrawBuffer; exec->DrawPixels = _mesa_DrawPixels; - exec->Enable = _mesa_Enable; exec->EndList = _mesa_EndList; exec->FeedbackBuffer = _mesa_FeedbackBuffer; - exec->Finish = _mesa_Finish; - exec->Flush = _mesa_Flush; exec->FogCoordPointerEXT = _mesa_FogCoordPointerEXT; exec->Fogf = _mesa_Fogf; exec->Fogfv = _mesa_Fogfv; exec->Fogi = _mesa_Fogi; exec->Fogiv = _mesa_Fogiv; - exec->FrontFace = _mesa_FrontFace; - exec->Frustum = _mesa_Frustum; exec->GenLists = _mesa_GenLists; - exec->GetBooleanv = _mesa_GetBooleanv; exec->GetClipPlane = _mesa_GetClipPlane; + exec->GetBooleanv = _mesa_GetBooleanv; exec->GetDoublev = _mesa_GetDoublev; - exec->GetError = _mesa_GetError; - exec->GetFloatv = _mesa_GetFloatv; exec->GetIntegerv = _mesa_GetIntegerv; exec->GetLightfv = _mesa_GetLightfv; exec->GetLightiv = _mesa_GetLightiv; @@ -180,20 +236,18 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->GetPixelMapuiv = _mesa_GetPixelMapuiv; exec->GetPixelMapusv = _mesa_GetPixelMapusv; exec->GetPolygonStipple = _mesa_GetPolygonStipple; - exec->GetString = _mesa_GetString; exec->GetTexEnvfv = _mesa_GetTexEnvfv; exec->GetTexEnviv = _mesa_GetTexEnviv; - exec->GetTexGendv = _mesa_GetTexGendv; - exec->GetTexGenfv = _mesa_GetTexGenfv; - exec->GetTexGeniv = _mesa_GetTexGeniv; - exec->GetTexImage = _mesa_GetTexImage; exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv; exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv; exec->GetTexParameterfv = _mesa_GetTexParameterfv; exec->GetTexParameteriv = _mesa_GetTexParameteriv; + exec->GetTexGendv = _mesa_GetTexGendv; + exec->GetTexGenfv = _mesa_GetTexGenfv; + exec->GetTexGeniv = _mesa_GetTexGeniv; + exec->GetTexImage = _mesa_GetTexImage; exec->Hint = _mesa_Hint; exec->IndexMask = _mesa_IndexMask; - exec->InitNames = _mesa_InitNames; exec->IsEnabled = _mesa_IsEnabled; exec->IsList = _mesa_IsList; exec->LightModelf = _mesa_LightModelf; @@ -204,14 +258,8 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->Lightfv = _mesa_Lightfv; exec->Lighti = _mesa_Lighti; exec->Lightiv = _mesa_Lightiv; - exec->LineStipple = _mesa_LineStipple; - exec->LineWidth = _mesa_LineWidth; exec->ListBase = _mesa_ListBase; - exec->LoadIdentity = _mesa_LoadIdentity; exec->LoadMatrixd = _mesa_LoadMatrixd; - exec->LoadMatrixf = _mesa_LoadMatrixf; - exec->LoadName = _mesa_LoadName; - exec->LogicOp = _mesa_LogicOp; exec->Map1d = _mesa_Map1d; exec->Map1f = _mesa_Map1f; exec->Map2d = _mesa_Map2d; @@ -220,17 +268,13 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->MapGrid1f = _mesa_MapGrid1f; exec->MapGrid2d = _mesa_MapGrid2d; exec->MapGrid2f = _mesa_MapGrid2f; - exec->MatrixMode = _mesa_MatrixMode; exec->MultMatrixd = _mesa_MultMatrixd; - exec->MultMatrixf = _mesa_MultMatrixf; exec->NewList = _mesa_NewList; - exec->Ortho = _mesa_Ortho; exec->PassThrough = _mesa_PassThrough; exec->PixelMapfv = _mesa_PixelMapfv; exec->PixelMapuiv = _mesa_PixelMapuiv; exec->PixelMapusv = _mesa_PixelMapusv; exec->PixelStoref = _mesa_PixelStoref; - exec->PixelStorei = _mesa_PixelStorei; exec->PixelTransferf = _mesa_PixelTransferf; exec->PixelTransferi = _mesa_PixelTransferi; exec->PixelZoom = _mesa_PixelZoom; @@ -239,17 +283,9 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->PolygonOffset = _mesa_PolygonOffset; exec->PolygonStipple = _mesa_PolygonStipple; exec->PopAttrib = _mesa_PopAttrib; - exec->PopMatrix = _mesa_PopMatrix; - exec->PopName = _mesa_PopName; exec->PushAttrib = _mesa_PushAttrib; - exec->PushMatrix = _mesa_PushMatrix; - exec->PushName = _mesa_PushName; exec->RasterPos2d = _mesa_RasterPos2d; exec->RasterPos2dv = _mesa_RasterPos2dv; - exec->RasterPos2f = _mesa_RasterPos2f; - exec->RasterPos2fv = _mesa_RasterPos2fv; - exec->RasterPos2i = _mesa_RasterPos2i; - exec->RasterPos2iv = _mesa_RasterPos2iv; exec->RasterPos2s = _mesa_RasterPos2s; exec->RasterPos2sv = _mesa_RasterPos2sv; exec->RasterPos3d = _mesa_RasterPos3d; @@ -268,23 +304,11 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->RasterPos4iv = _mesa_RasterPos4iv; exec->RasterPos4s = _mesa_RasterPos4s; exec->RasterPos4sv = _mesa_RasterPos4sv; - exec->ReadBuffer = _mesa_ReadBuffer; exec->ReadPixels = _mesa_ReadPixels; - exec->RenderMode = _mesa_RenderMode; exec->Rotated = _mesa_Rotated; - exec->Rotatef = _mesa_Rotatef; exec->Scaled = _mesa_Scaled; - exec->Scalef = _mesa_Scalef; - exec->Scissor = _mesa_Scissor; exec->SecondaryColorPointerEXT = _mesa_SecondaryColorPointerEXT; - exec->SelectBuffer = _mesa_SelectBuffer; - exec->ShadeModel = _mesa_ShadeModel; - exec->StencilFunc = _mesa_StencilFunc; - exec->StencilMask = _mesa_StencilMask; - exec->StencilOp = _mesa_StencilOp; exec->TexEnvf = _mesa_TexEnvf; - exec->TexEnvfv = _mesa_TexEnvfv; - exec->TexEnvi = _mesa_TexEnvi; exec->TexEnviv = _mesa_TexEnviv; exec->TexGend = _mesa_TexGend; exec->TexGendv = _mesa_TexGendv; @@ -293,29 +317,27 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->TexGeni = _mesa_TexGeni; exec->TexGeniv = _mesa_TexGeniv; exec->TexImage1D = _mesa_TexImage1D; - exec->TexImage2D = _mesa_TexImage2D; exec->TexParameterf = _mesa_TexParameterf; exec->TexParameterfv = _mesa_TexParameterfv; - exec->TexParameteri = _mesa_TexParameteri; exec->TexParameteriv = _mesa_TexParameteriv; exec->Translated = _mesa_Translated; - exec->Translatef = _mesa_Translatef; - exec->Viewport = _mesa_Viewport; +#endif /* 1.1 */ + exec->BindTexture = _mesa_BindTexture; + exec->DeleteTextures = _mesa_DeleteTextures; + exec->GenTextures = _mesa_GenTextures; +#if _HAVE_FULL_GL exec->AreTexturesResident = _mesa_AreTexturesResident; exec->AreTexturesResidentEXT = _mesa_AreTexturesResident; - exec->BindTexture = _mesa_BindTexture; exec->ColorPointer = _mesa_ColorPointer; exec->CopyTexImage1D = _mesa_CopyTexImage1D; exec->CopyTexImage2D = _mesa_CopyTexImage2D; exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D; exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D; - exec->DeleteTextures = _mesa_DeleteTextures; exec->DisableClientState = _mesa_DisableClientState; exec->EdgeFlagPointer = _mesa_EdgeFlagPointer; exec->EnableClientState = _mesa_EnableClientState; - exec->GenTextures = _mesa_GenTextures; exec->GenTexturesEXT = _mesa_GenTextures; exec->GetPointerv = _mesa_GetPointerv; exec->IndexPointer = _mesa_IndexPointer; @@ -330,13 +352,17 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->TexSubImage1D = _mesa_TexSubImage1D; exec->TexSubImage2D = _mesa_TexSubImage2D; exec->VertexPointer = _mesa_VertexPointer; +#endif /* 1.2 */ +#if _HAVE_FULL_GL exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D; exec->TexImage3D = _mesa_TexImage3D; exec->TexSubImage3D = _mesa_TexSubImage3D; +#endif /* OpenGL 1.2 GL_ARB_imaging */ +#if _HAVE_FULL_GL exec->BlendColor = _mesa_BlendColor; exec->BlendEquation = _mesa_BlendEquation; exec->ColorSubTable = _mesa_ColorSubTable; @@ -384,48 +410,59 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->ResetHistogram = _mesa_ResetHistogram; exec->ResetMinmax = _mesa_ResetMinmax; exec->SeparableFilter2D = _mesa_SeparableFilter2D; +#endif /* 2. GL_EXT_blend_color */ #if 0 - exec->BlendColorEXT = _mesa_BlendColorEXT; +/* exec->BlendColorEXT = _mesa_BlendColorEXT; */ #endif /* 3. GL_EXT_polygon_offset */ +#if _HAVE_FULL_GL exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT; +#endif /* 6. GL_EXT_texture3d */ #if 0 - exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D; - exec->TexImage3DEXT = _mesa_TexImage3DEXT; - exec->TexSubImage3DEXT = _mesa_TexSubImage3D; +/* exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D; */ +/* exec->TexImage3DEXT = _mesa_TexImage3DEXT; */ +/* exec->TexSubImage3DEXT = _mesa_TexSubImage3D; */ #endif /* 11. GL_EXT_histogram */ +#if _HAVE_FULL_GL exec->GetHistogramEXT = _mesa_GetHistogram; exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv; exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv; exec->GetMinmaxEXT = _mesa_GetMinmax; exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv; exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv; +#endif /* ?. GL_SGIX_pixel_texture */ +#if _HAVE_FULL_GL exec->PixelTexGenSGIX = _mesa_PixelTexGenSGIX; +#endif /* 15. GL_SGIS_pixel_texture */ +#if _HAVE_FULL_GL exec->PixelTexGenParameteriSGIS = _mesa_PixelTexGenParameteriSGIS; exec->PixelTexGenParameterivSGIS = _mesa_PixelTexGenParameterivSGIS; exec->PixelTexGenParameterfSGIS = _mesa_PixelTexGenParameterfSGIS; exec->PixelTexGenParameterfvSGIS = _mesa_PixelTexGenParameterfvSGIS; exec->GetPixelTexGenParameterivSGIS = _mesa_GetPixelTexGenParameterivSGIS; exec->GetPixelTexGenParameterfvSGIS = _mesa_GetPixelTexGenParameterfvSGIS; +#endif /* 30. GL_EXT_vertex_array */ +#if _HAVE_FULL_GL exec->ColorPointerEXT = _mesa_ColorPointerEXT; exec->EdgeFlagPointerEXT = _mesa_EdgeFlagPointerEXT; exec->IndexPointerEXT = _mesa_IndexPointerEXT; exec->NormalPointerEXT = _mesa_NormalPointerEXT; exec->TexCoordPointerEXT = _mesa_TexCoordPointerEXT; exec->VertexPointerEXT = _mesa_VertexPointerEXT; +#endif /* 37. GL_EXT_blend_minmax */ #if 0 @@ -433,33 +470,46 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) #endif /* 54. GL_EXT_point_parameters */ +#if _HAVE_FULL_GL exec->PointParameterfEXT = _mesa_PointParameterfEXT; exec->PointParameterfvEXT = _mesa_PointParameterfvEXT; +#endif /* 78. GL_EXT_paletted_texture */ #if 0 exec->ColorTableEXT = _mesa_ColorTableEXT; exec->ColorSubTableEXT = _mesa_ColorSubTableEXT; #endif +#if _HAVE_FULL_GL exec->GetColorTableEXT = _mesa_GetColorTable; exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv; exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv; +#endif /* 97. GL_EXT_compiled_vertex_array */ +#if _HAVE_FULL_GL exec->LockArraysEXT = _mesa_LockArraysEXT; exec->UnlockArraysEXT = _mesa_UnlockArraysEXT; +#endif /* 148. GL_EXT_multi_draw_arrays */ +#if _HAVE_FULL_GL exec->MultiDrawArraysEXT = _mesa_MultiDrawArraysEXT; exec->MultiDrawElementsEXT = _mesa_MultiDrawElementsEXT; +#endif /* 173. GL_INGR_blend_func_separate */ +#if _HAVE_FULL_GL exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT; +#endif /* 196. GL_MESA_resize_buffers */ +#if _HAVE_FULL_GL exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA; +#endif /* 197. GL_MESA_window_pos */ +#if _HAVE_FULL_GL exec->WindowPos2dMESA = _mesa_WindowPos2dMESA; exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA; exec->WindowPos2fMESA = _mesa_WindowPos2fMESA; @@ -484,6 +534,7 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA; exec->WindowPos4sMESA = _mesa_WindowPos4sMESA; exec->WindowPos4svMESA = _mesa_WindowPos4svMESA; +#endif /* 233. GL_NV_vertex_program */ #if FEATURE_NV_vertex_program @@ -532,29 +583,40 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) #endif /* 262. GL_NV_point_sprite */ +#if _HAVE_FULL_GL exec->PointParameteriNV = _mesa_PointParameteriNV; exec->PointParameterivNV = _mesa_PointParameterivNV; +#endif /* 268. GL_EXT_stencil_two_side */ +#if _HAVE_FULL_GL exec->ActiveStencilFaceEXT = _mesa_ActiveStencilFaceEXT; +#endif /* ???. GL_EXT_depth_bounds_test */ exec->DepthBoundsEXT = _mesa_DepthBoundsEXT; /* ARB 1. GL_ARB_multitexture */ +#if _HAVE_FULL_GL exec->ActiveTextureARB = _mesa_ActiveTextureARB; exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB; +#endif /* ARB 3. GL_ARB_transpose_matrix */ +#if _HAVE_FULL_GL exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB; exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB; exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB; exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB; +#endif /* ARB 5. GL_ARB_multisample */ +#if _HAVE_FULL_GL exec->SampleCoverageARB = _mesa_SampleCoverageARB; +#endif /* ARB 12. GL_ARB_texture_compression */ +#if _HAVE_FULL_GL exec->CompressedTexImage3DARB = _mesa_CompressedTexImage3DARB; exec->CompressedTexImage2DARB = _mesa_CompressedTexImage2DARB; exec->CompressedTexImage1DARB = _mesa_CompressedTexImage1DARB; @@ -562,6 +624,7 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) exec->CompressedTexSubImage2DARB = _mesa_CompressedTexSubImage2DARB; exec->CompressedTexSubImage1DARB = _mesa_CompressedTexSubImage1DARB; exec->GetCompressedTexImageARB = _mesa_GetCompressedTexImageARB; +#endif /* ARB 14. GL_ARB_point_parameters */ /* reuse EXT_point_parameters functions */ @@ -660,392 +723,20 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize) #endif } +/*@}*/ /**********************************************************************/ -/***** State update logic *****/ -/**********************************************************************/ - - -/* - * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET - * in ctx->_TriangleCaps if needed. - */ -static void -update_polygon( GLcontext *ctx ) -{ - ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET); - - if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK) - ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK; - - /* Any Polygon offsets enabled? */ - if (ctx->Polygon.OffsetPoint || - ctx->Polygon.OffsetLine || - ctx->Polygon.OffsetFill) { - ctx->_TriangleCaps |= DD_TRI_OFFSET; - } -} - -static void -calculate_model_project_matrix( GLcontext *ctx ) -{ - _math_matrix_mul_matrix( &ctx->_ModelProjectMatrix, - ctx->ProjectionMatrixStack.Top, - ctx->ModelviewMatrixStack.Top ); - - _math_matrix_analyse( &ctx->_ModelProjectMatrix ); -} - -static void -update_modelview_scale( GLcontext *ctx ) -{ - ctx->_ModelViewInvScale = 1.0F; - if (ctx->ModelviewMatrixStack.Top->flags & (MAT_FLAG_UNIFORM_SCALE | - MAT_FLAG_GENERAL_SCALE | - MAT_FLAG_GENERAL_3D | - MAT_FLAG_GENERAL) ) { - const GLfloat *m = ctx->ModelviewMatrixStack.Top->inv; - GLfloat f = m[2] * m[2] + m[6] * m[6] + m[10] * m[10]; - if (f < 1e-12) f = 1.0; - if (ctx->_NeedEyeCoords) - ctx->_ModelViewInvScale = 1.0F / SQRTF(f); - else - ctx->_ModelViewInvScale = SQRTF(f); - } -} - - -/* Bring uptodate any state that relies on _NeedEyeCoords. - */ -static void -update_tnl_spaces( GLcontext *ctx, GLuint oldneedeyecoords ) -{ - /* Check if the truth-value interpretations of the bitfields have - * changed: - */ - if ((oldneedeyecoords == 0) != (ctx->_NeedEyeCoords == 0)) { - /* Recalculate all state that depends on _NeedEyeCoords. - */ - update_modelview_scale(ctx); - _mesa_compute_light_positions( ctx ); - - if (ctx->Driver.LightingSpaceChange) - ctx->Driver.LightingSpaceChange( ctx ); - } - else { - GLuint new_state = ctx->NewState; - - /* Recalculate that same state only if it has been invalidated - * by other statechanges. - */ - if (new_state & _NEW_MODELVIEW) - update_modelview_scale(ctx); - - if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW)) - _mesa_compute_light_positions( ctx ); - } -} - - -static void -update_drawbuffer( GLcontext *ctx ) -{ - ctx->DrawBuffer->_Xmin = 0; - ctx->DrawBuffer->_Ymin = 0; - ctx->DrawBuffer->_Xmax = ctx->DrawBuffer->Width; - ctx->DrawBuffer->_Ymax = ctx->DrawBuffer->Height; - if (ctx->Scissor.Enabled) { - if (ctx->Scissor.X > ctx->DrawBuffer->_Xmin) { - ctx->DrawBuffer->_Xmin = ctx->Scissor.X; - } - if (ctx->Scissor.Y > ctx->DrawBuffer->_Ymin) { - ctx->DrawBuffer->_Ymin = ctx->Scissor.Y; - } - if (ctx->Scissor.X + ctx->Scissor.Width < ctx->DrawBuffer->_Xmax) { - ctx->DrawBuffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width; - } - if (ctx->Scissor.Y + ctx->Scissor.Height < ctx->DrawBuffer->_Ymax) { - ctx->DrawBuffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height; - } - } -} - - -/* NOTE: This routine references Tranform attribute values to compute - * userclip positions in clip space, but is only called on - * _NEW_PROJECTION. The _mesa_ClipPlane() function keeps these values - * up to date across changes to the Transform attributes. - */ -static void -update_projection( GLcontext *ctx ) -{ - _math_matrix_analyse( ctx->ProjectionMatrixStack.Top ); - - /* Recompute clip plane positions in clipspace. This is also done - * in _mesa_ClipPlane(). - */ - if (ctx->Transform.ClipPlanesEnabled) { - GLuint p; - for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { - if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { - _mesa_transform_vector( ctx->Transform._ClipUserPlane[p], - ctx->Transform.EyeUserPlane[p], - ctx->ProjectionMatrixStack.Top->inv ); - } - } - } -} - - -/* - * Return a bitmask of IMAGE_*_BIT flags which to indicate which - * pixel transfer operations are enabled. - */ -static void -update_image_transfer_state(GLcontext *ctx) -{ - GLuint mask = 0; - - if (ctx->Pixel.RedScale != 1.0F || ctx->Pixel.RedBias != 0.0F || - ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F || - ctx->Pixel.BlueScale != 1.0F || ctx->Pixel.BlueBias != 0.0F || - ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F) - mask |= IMAGE_SCALE_BIAS_BIT; - - if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset) - mask |= IMAGE_SHIFT_OFFSET_BIT; - - if (ctx->Pixel.MapColorFlag) - mask |= IMAGE_MAP_COLOR_BIT; - - if (ctx->Pixel.ColorTableEnabled) - mask |= IMAGE_COLOR_TABLE_BIT; - - if (ctx->Pixel.Convolution1DEnabled || - ctx->Pixel.Convolution2DEnabled || - ctx->Pixel.Separable2DEnabled) { - mask |= IMAGE_CONVOLUTION_BIT; - if (ctx->Pixel.PostConvolutionScale[0] != 1.0F || - ctx->Pixel.PostConvolutionScale[1] != 1.0F || - ctx->Pixel.PostConvolutionScale[2] != 1.0F || - ctx->Pixel.PostConvolutionScale[3] != 1.0F || - ctx->Pixel.PostConvolutionBias[0] != 0.0F || - ctx->Pixel.PostConvolutionBias[1] != 0.0F || - ctx->Pixel.PostConvolutionBias[2] != 0.0F || - ctx->Pixel.PostConvolutionBias[3] != 0.0F) { - mask |= IMAGE_POST_CONVOLUTION_SCALE_BIAS; - } - } - - if (ctx->Pixel.PostConvolutionColorTableEnabled) - mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT; - - if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY || - ctx->Pixel.PostColorMatrixScale[0] != 1.0F || - ctx->Pixel.PostColorMatrixBias[0] != 0.0F || - ctx->Pixel.PostColorMatrixScale[1] != 1.0F || - ctx->Pixel.PostColorMatrixBias[1] != 0.0F || - ctx->Pixel.PostColorMatrixScale[2] != 1.0F || - ctx->Pixel.PostColorMatrixBias[2] != 0.0F || - ctx->Pixel.PostColorMatrixScale[3] != 1.0F || - ctx->Pixel.PostColorMatrixBias[3] != 0.0F) - mask |= IMAGE_COLOR_MATRIX_BIT; - - if (ctx->Pixel.PostColorMatrixColorTableEnabled) - mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT; - - if (ctx->Pixel.HistogramEnabled) - mask |= IMAGE_HISTOGRAM_BIT; - - if (ctx->Pixel.MinMaxEnabled) - mask |= IMAGE_MIN_MAX_BIT; - - ctx->_ImageTransferState = mask; -} +/** \name State update logic */ +/*@{*/ -/* Note: This routine refers to derived texture attribute values to - * compute the ENABLE_TEXMAT flags, but is only called on - * _NEW_TEXTURE_MATRIX. On changes to _NEW_TEXTURE, the ENABLE_TEXMAT - * flags are updated by _mesa_update_textures(), below. - * - * If both TEXTURE and TEXTURE_MATRIX change at once, these values - * will be computed twice. - */ -static void -update_texture_matrices( GLcontext *ctx ) -{ - GLuint i; - ctx->Texture._TexMatEnabled = 0; - for (i=0; i < ctx->Const.MaxTextureCoordUnits; i++) { - if (ctx->TextureMatrixStack[i].Top->flags & MAT_DIRTY) { - _math_matrix_analyse( ctx->TextureMatrixStack[i].Top ); - - if (ctx->Texture.Unit[i]._ReallyEnabled && - ctx->TextureMatrixStack[i].Top->type != MATRIX_IDENTITY) - ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i); - - if (ctx->Driver.TextureMatrix) - ctx->Driver.TextureMatrix( ctx, i, ctx->TextureMatrixStack[i].Top); - } - } -} -/* Note: This routine refers to derived texture matrix values to - * compute the ENABLE_TEXMAT flags, but is only called on - * _NEW_TEXTURE. On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT - * flags are updated by _mesa_update_texture_matrices, above. - * - * If both TEXTURE and TEXTURE_MATRIX change at once, these values - * will be computed twice. - */ -static void -update_texture_state( GLcontext *ctx ) -{ - GLuint unit; - - ctx->Texture._EnabledUnits = 0; - ctx->Texture._GenFlags = 0; - ctx->_NeedNormals &= ~NEED_NORMALS_TEXGEN; - ctx->_NeedEyeCoords &= ~NEED_EYE_TEXGEN; - ctx->Texture._TexMatEnabled = 0; - ctx->Texture._TexGenEnabled = 0; - - /* Update texture unit state. - * XXX this loop should probably be broken into separate loops for - * texture coord units and texture image units. - */ - for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - GLuint enableBits; - - texUnit->_ReallyEnabled = 0; - texUnit->_GenFlags = 0; - - /* Get the bitmask of texture enables */ - if (ctx->FragmentProgram.Enabled && ctx->FragmentProgram.Current) { - enableBits = ctx->FragmentProgram.Current->TexturesUsed[unit]; - } - else { - if (!texUnit->Enabled) - continue; - enableBits = texUnit->Enabled; - } - - /* Look for the highest-priority texture target that's enabled and - * complete. That's the one we'll use for texturing. If we're using - * a fragment program we're guaranteed that bitcount(enabledBits) <= 1. - */ - if (enableBits & TEXTURE_CUBE_BIT) { - struct gl_texture_object *texObj = texUnit->CurrentCubeMap; - if (!texObj->Complete) { - _mesa_test_texobj_completeness(ctx, texObj); - } - if (texObj->Complete) { - texUnit->_ReallyEnabled = TEXTURE_CUBE_BIT; - texUnit->_Current = texObj; - } - } - - if (!texUnit->_ReallyEnabled && (enableBits & TEXTURE_3D_BIT)) { - struct gl_texture_object *texObj = texUnit->Current3D; - if (!texObj->Complete) { - _mesa_test_texobj_completeness(ctx, texObj); - } - if (texObj->Complete) { - texUnit->_ReallyEnabled = TEXTURE_3D_BIT; - texUnit->_Current = texObj; - } - } - - if (!texUnit->_ReallyEnabled && (enableBits & TEXTURE_RECT_BIT)) { - struct gl_texture_object *texObj = texUnit->CurrentRect; - if (!texObj->Complete) { - _mesa_test_texobj_completeness(ctx, texObj); - } - if (texObj->Complete) { - texUnit->_ReallyEnabled = TEXTURE_RECT_BIT; - texUnit->_Current = texObj; - } - } - - if (!texUnit->_ReallyEnabled && (enableBits & TEXTURE_2D_BIT)) { - struct gl_texture_object *texObj = texUnit->Current2D; - if (!texObj->Complete) { - _mesa_test_texobj_completeness(ctx, texObj); - } - if (texObj->Complete) { - texUnit->_ReallyEnabled = TEXTURE_2D_BIT; - texUnit->_Current = texObj; - } - } - - if (!texUnit->_ReallyEnabled && (enableBits & TEXTURE_1D_BIT)) { - struct gl_texture_object *texObj = texUnit->Current1D; - if (!texObj->Complete) { - _mesa_test_texobj_completeness(ctx, texObj); - } - if (texObj->Complete) { - texUnit->_ReallyEnabled = TEXTURE_1D_BIT; - texUnit->_Current = texObj; - } - } - - if (!texUnit->_ReallyEnabled) { - texUnit->_Current = NULL; - continue; - } - - if (texUnit->_ReallyEnabled) - ctx->Texture._EnabledUnits |= (1 << unit); - - if (texUnit->TexGenEnabled) { - if (texUnit->TexGenEnabled & S_BIT) { - texUnit->_GenFlags |= texUnit->_GenBitS; - } - if (texUnit->TexGenEnabled & T_BIT) { - texUnit->_GenFlags |= texUnit->_GenBitT; - } - if (texUnit->TexGenEnabled & Q_BIT) { - texUnit->_GenFlags |= texUnit->_GenBitQ; - } - if (texUnit->TexGenEnabled & R_BIT) { - texUnit->_GenFlags |= texUnit->_GenBitR; - } - - ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit); - ctx->Texture._GenFlags |= texUnit->_GenFlags; - } - - if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY) - ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit); - } - - if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) { - ctx->_NeedNormals |= NEED_NORMALS_TEXGEN; - ctx->_NeedEyeCoords |= NEED_EYE_TEXGEN; - } - - if (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) { - ctx->_NeedEyeCoords |= NEED_EYE_TEXGEN; - } - - ctx->Texture._EnabledCoordUnits = ctx->Texture._EnabledUnits; - /* Fragment programs may need texture coordinates but not the - * corresponding texture images. - */ - if (ctx->FragmentProgram.Enabled && ctx->FragmentProgram.Current) { - ctx->Texture._EnabledCoordUnits |= - (ctx->FragmentProgram.Current->InputsRead >> FRAG_ATTRIB_TEX0); - } -} - /* * Update items which depend on vertex/fragment programs. @@ -1061,93 +752,44 @@ update_program( GLcontext *ctx ) /* - * If ctx->NewState is non-zero then this function MUST be called before - * rendering any primitive. Basically, function pointers and miscellaneous - * flags are updated to reflect the current state of the state machine. - * - * The above constraint is now maintained largely by the two Exec - * dispatch tables, which trigger the appropriate flush on transition - * between State and Geometry modes. + * If __GLcontextRec::NewState is non-zero then this function \b must be called + * before rendering any primitive. Basically, function pointers and + * miscellaneous flags are updated to reflect the current state of the state + * machine. * - * Special care is taken with the derived value _NeedEyeCoords. This - * is a bitflag which is updated with information from a number of - * attribute groups (MODELVIEW, LIGHT, TEXTURE). A lot of derived - * state references this value, and must be treated with care to - * ensure that updates are done correctly. All state dependent on - * _NeedEyeCoords is calculated from within _mesa_update_tnl_spaces(), - * and from nowhere else. + * Calls dd_function_table::UpdateState to perform any internal state management + * necessary. + * + * \sa _mesa_update_modelview_project(), _mesa_update_texture(), + * _mesa_update_buffers(), _mesa_update_polygon(), _mesa_update_lighting() and + * _mesa_update_tnl_spaces(). */ void _mesa_update_state( GLcontext *ctx ) { const GLuint new_state = ctx->NewState; - const GLuint oldneedeyecoords = ctx->_NeedEyeCoords; if (MESA_VERBOSE & VERBOSE_STATE) _mesa_print_state("_mesa_update_state", new_state); - if (new_state & _NEW_MODELVIEW) - _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); - - if (new_state & _NEW_PROJECTION) - update_projection( ctx ); - - if (new_state & _NEW_TEXTURE_MATRIX) - update_texture_matrices( ctx ); - - if (new_state & _NEW_COLOR_MATRIX) - _math_matrix_analyse( ctx->ColorMatrixStack.Top ); - - /* References ColorMatrix.type (derived above). - */ - if (new_state & _IMAGE_NEW_TRANSFER_STATE) - update_image_transfer_state(ctx); + if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION)) + _mesa_update_modelview_project( ctx, new_state ); - /* Contributes to NeedEyeCoords, NeedNormals. - */ - if (new_state & _NEW_TEXTURE) - update_texture_state( ctx ); + if (new_state & (_NEW_TEXTURE|_NEW_TEXTURE_MATRIX)) + _mesa_update_texture( ctx, new_state ); - if (new_state & (_NEW_BUFFERS|_NEW_SCISSOR)) - update_drawbuffer( ctx ); + if (new_state & (_NEW_SCISSOR|_NEW_BUFFERS)) + _mesa_update_buffers( ctx ); if (new_state & _NEW_POLYGON) - update_polygon( ctx ); + _mesa_update_polygon( ctx ); - /* Contributes to NeedEyeCoords, NeedNormals. - */ if (new_state & _NEW_LIGHT) _mesa_update_lighting( ctx ); - /* We can light in object space if the modelview matrix preserves - * lengths and relative angles. - */ - if (new_state & (_NEW_MODELVIEW|_NEW_LIGHT)) { - ctx->_NeedEyeCoords &= ~NEED_EYE_LIGHT_MODELVIEW; - if (ctx->Light.Enabled && - !TEST_MAT_FLAGS( ctx->ModelviewMatrixStack.Top, MAT_FLAGS_LENGTH_PRESERVING)) - ctx->_NeedEyeCoords |= NEED_EYE_LIGHT_MODELVIEW; - } if (new_state & _NEW_PROGRAM) update_program( ctx ); -#if 0 - /* XXX this is a bit of a hack. We should be checking elsewhere if - * vertex program mode is enabled. We set _NeedEyeCoords to zero to - * ensure that the combined modelview/projection matrix is computed - * in calculate_model_project_matrix(). - */ - if (ctx->VertexProgram.Enabled) - ctx->_NeedEyeCoords = 0; - /* KW: it's now always computed. - */ -#endif - - /* Keep ModelviewProject uptodate always to allow tnl - * implementations that go model->clip even when eye is required. - */ - if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION)) - calculate_model_project_matrix(ctx); /* ctx->_NeedEyeCoords is now uptodate. * @@ -1158,10 +800,8 @@ void _mesa_update_state( GLcontext *ctx ) * If the lighting space hasn't changed, may still need to recompute * light positions & normal transforms for other reasons. */ - if (new_state & (_NEW_MODELVIEW | - _NEW_LIGHT | - _MESA_NEW_NEED_EYE_COORDS)) - update_tnl_spaces( ctx, oldneedeyecoords ); + if (new_state & _MESA_NEW_NEED_EYE_COORDS) + _mesa_update_tnl_spaces( ctx, new_state ); /* * Here the driver sets up all the ctx->Driver function pointers @@ -1179,52 +819,7 @@ void _mesa_update_state( GLcontext *ctx ) /* At this point we can do some assertions to be sure the required * device driver function pointers are all initialized. */ - ASSERT(ctx->Driver.GetString); - ASSERT(ctx->Driver.UpdateState); - ASSERT(ctx->Driver.Clear); - ASSERT(ctx->Driver.GetBufferSize); - if (ctx->Visual.accumRedBits > 0) { - ASSERT(ctx->Driver.Accum); - } - ASSERT(ctx->Driver.DrawPixels); - ASSERT(ctx->Driver.ReadPixels); - ASSERT(ctx->Driver.CopyPixels); - ASSERT(ctx->Driver.Bitmap); - ASSERT(ctx->Driver.ResizeBuffers); - ASSERT(ctx->Driver.TexImage1D); - ASSERT(ctx->Driver.TexImage2D); - ASSERT(ctx->Driver.TexImage3D); - ASSERT(ctx->Driver.TexSubImage1D); - ASSERT(ctx->Driver.TexSubImage2D); - ASSERT(ctx->Driver.TexSubImage3D); - ASSERT(ctx->Driver.CopyTexImage1D); - ASSERT(ctx->Driver.CopyTexImage2D); - ASSERT(ctx->Driver.CopyTexSubImage1D); - ASSERT(ctx->Driver.CopyTexSubImage2D); - ASSERT(ctx->Driver.CopyTexSubImage3D); - if (ctx->Extensions.ARB_texture_compression) { -#if 0 /* HW drivers need these, but not SW rasterizers */ - ASSERT(ctx->Driver.CompressedTexImage1D); - ASSERT(ctx->Driver.CompressedTexImage2D); - ASSERT(ctx->Driver.CompressedTexImage3D); - ASSERT(ctx->Driver.CompressedTexSubImage1D); - ASSERT(ctx->Driver.CompressedTexSubImage2D); - ASSERT(ctx->Driver.CompressedTexSubImage3D); -#endif - } + _mesa_check_driver_hooks( ctx ); } -/* Is this helpful? - */ -void -_mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag ) -{ - if (flag) - ctx->_NeedEyeCoords &= ~NEED_EYE_DRIVER; - else - ctx->_NeedEyeCoords |= NEED_EYE_DRIVER; - - ctx->NewState |= _NEW_POINT; /* one of the bits from - * _MESA_NEW_NEED_EYE_COORDS. - */ -} +/*@}*/ diff --git a/src/mesa/main/state.h b/src/mesa/main/state.h index 8d3ccc16d5b..fe577a85637 100644 --- a/src/mesa/main/state.h +++ b/src/mesa/main/state.h @@ -1,3 +1,7 @@ +/** + * \file state.h + * State management. + */ /* * Mesa 3-D graphics library @@ -29,7 +33,6 @@ #include "mtypes.h" - extern void _mesa_init_no_op_table(struct _glapi_table *exec, GLuint tableSize); @@ -39,13 +42,5 @@ _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize); extern void _mesa_update_state( GLcontext *ctx ); -extern void -_mesa_print_state( const char *msg, GLuint state ); - -extern void -_mesa_print_enable_flags( const char *msg, GLuint flags ); - -extern void -_mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag ); #endif diff --git a/src/mesa/main/stencil.c b/src/mesa/main/stencil.c index 1b7c637c4c7..bcfe383790b 100644 --- a/src/mesa/main/stencil.c +++ b/src/mesa/main/stencil.c @@ -1,3 +1,7 @@ +/** + * \file stencil.c + * Stencil operations. + */ /* * Mesa 3-D graphics library @@ -34,6 +38,17 @@ #include "enable.h" +/** + * Set the clear value for the stencil buffer. + * + * \param s clear value. + * + * \sa glClearStencil(). + * + * Updates gl_stencil_attrib::Clear. On change + * flushes the vertices and notifies the driver via + * the dd_function_table::ClearStencil callback. + */ void _mesa_ClearStencil( GLint s ) { @@ -52,7 +67,19 @@ _mesa_ClearStencil( GLint s ) } - +/** + * Set the function and reference value for stencil testing. + * + * \param func test function. + * \param ref reference value. + * \param mask bitmask. + * + * \sa glStencilFunc(). + * + * Verifies the parameters and updates the respective values in + * __GLcontextRec::Stencil. On change flushes the vertices and notifies the + * driver via the dd_function_table::StencilFunc callback. + */ void _mesa_StencilFunc( GLenum func, GLint ref, GLuint mask ) { @@ -95,7 +122,17 @@ _mesa_StencilFunc( GLenum func, GLint ref, GLuint mask ) } - +/** + * Set the stencil writing mask. + * + * \param mask bit-mask to enable/disable writing of individual bits in the + * stencil planes. + * + * \sa glStencilMask(). + * + * Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and + * notifies the driver via the dd_function_table::StencilMask callback. + */ void _mesa_StencilMask( GLuint mask ) { @@ -115,7 +152,20 @@ _mesa_StencilMask( GLuint mask ) } - +/** + * Set the stencil test actions. + * + * \param fail action to take when stencil test fails. + * \param zfail action to take when stencil test passes, but the depth test fails. + * \param zpass action to take when stencil test passes and the depth test + * passes (or depth testing is not enabled). + * + * \sa glStencilOp(). + * + * Verifies the parameters and updates the respective fields in + * __GLcontextRec::Stencil. On change flushes the vertices and notifies the + * driver via the dd_function_table::StencilOp callback. + */ void _mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass) { @@ -194,6 +244,7 @@ _mesa_StencilOp(GLenum fail, GLenum zfail, GLenum zpass) } +#if _HAVE_FULL_GL /* GL_EXT_stencil_two_side */ void _mesa_ActiveStencilFaceEXT(GLenum face) @@ -210,4 +261,36 @@ _mesa_ActiveStencilFaceEXT(GLenum face) (*ctx->Driver.ActiveStencilFace)( ctx, (GLuint) ctx->Stencil.ActiveFace ); } } +#endif + +/** + * Initialize the context stipple state. + * + * \param ctx GL context. + * + * Initializes __GLcontextRec::Stencil attribute group. + */ +void _mesa_init_stencil( GLcontext * ctx ) +{ + + /* Stencil group */ + ctx->Stencil.Enabled = GL_FALSE; + ctx->Stencil.TestTwoSide = GL_FALSE; + ctx->Stencil.ActiveFace = 0; /* 0 = GL_FRONT, 1 = GL_BACK */ + ctx->Stencil.Function[0] = GL_ALWAYS; + ctx->Stencil.Function[1] = GL_ALWAYS; + ctx->Stencil.FailFunc[0] = GL_KEEP; + ctx->Stencil.FailFunc[1] = GL_KEEP; + ctx->Stencil.ZPassFunc[0] = GL_KEEP; + ctx->Stencil.ZPassFunc[1] = GL_KEEP; + ctx->Stencil.ZFailFunc[0] = GL_KEEP; + ctx->Stencil.ZFailFunc[1] = GL_KEEP; + ctx->Stencil.Ref[0] = 0; + ctx->Stencil.Ref[1] = 0; + ctx->Stencil.ValueMask[0] = STENCIL_MAX; + ctx->Stencil.ValueMask[1] = STENCIL_MAX; + ctx->Stencil.WriteMask[0] = STENCIL_MAX; + ctx->Stencil.WriteMask[1] = STENCIL_MAX; + ctx->Stencil.Clear = 0; +} diff --git a/src/mesa/main/stencil.h b/src/mesa/main/stencil.h index bb20884b85c..cf645608f81 100644 --- a/src/mesa/main/stencil.h +++ b/src/mesa/main/stencil.h @@ -1,3 +1,7 @@ +/** + * \file stencil.h + * Stencil operations. + */ /* * Mesa 3-D graphics library @@ -51,4 +55,7 @@ extern void _mesa_ActiveStencilFaceEXT(GLenum face); +extern void +_mesa_init_stencil( GLcontext * ctx ); + #endif diff --git a/src/mesa/main/texcompress.c b/src/mesa/main/texcompress.c index 01425f33a56..e6a96957229 100644 --- a/src/mesa/main/texcompress.c +++ b/src/mesa/main/texcompress.c @@ -1,3 +1,8 @@ +/** + * \file texcompress.c + * Compressed textures functions. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -33,7 +38,10 @@ /** * Get the list of supported internal compression formats. - * \param formats - the results list (may be NULL) + * + * \param ctx GL context. + * \param formats the resulting format list (may be NULL). + * * \return number of formats. */ GLuint @@ -70,13 +78,16 @@ _mesa_get_compressed_formats( GLcontext *ctx, GLint *formats ) } - /** - * Return bytes of storage needed for the given texture size and compressed - * format. - * \param width, height, depth the texture size in texels - * \param texFormat one of the specific compressed format enums - * \return size in bytes, or zero if bad texFormat + * Return bytes of storage needed for the given texture size and + * compressed format. + * + * \param width texture width in texels. + * \param height texture height in texels. + * \param depth texture depth in texels. + * \param texFormat one of the compressed format enums + * + * \return size in bytes, or zero if bad \p texFormat. */ GLuint _mesa_compressed_texture_size( GLcontext *ctx, @@ -159,11 +170,15 @@ _mesa_compressed_row_stride(GLenum format, GLsizei width) /** * Return the address of the pixel at (col, row, img) in a * compressed texture image. - * \param col, row, img - image position (3D) - * \param format - compressed image format - * \param width - image width - * \param image - the image address - * \return address of pixel at (row, col) + * + * \param col image position. + * \param row image position. + * \param img image position. + * \param format compressed image format. + * \param width image width. + * \param image the image address. + * + * \return address of pixel at (row, col). */ GLubyte * _mesa_compressed_image_address(GLint col, GLint row, GLint img, @@ -197,9 +212,8 @@ _mesa_compressed_image_address(GLint col, GLint row, GLint img, } - -/* - * \param srcRowStride - source stride, in pixels +/** + * \param srcRowStride source stride, in pixels */ void _mesa_compress_teximage( GLcontext *ctx, GLsizei width, GLsizei height, diff --git a/src/mesa/main/texcompress.h b/src/mesa/main/texcompress.h index d0856142e32..457c1d7582d 100644 --- a/src/mesa/main/texcompress.h +++ b/src/mesa/main/texcompress.h @@ -28,7 +28,7 @@ #include "mtypes.h" - +#if _HAVE_FULL_GL extern GLuint _mesa_get_compressed_formats( GLcontext *ctx, GLint *formats ); @@ -53,5 +53,12 @@ _mesa_compress_teximage( GLcontext *ctx, GLsizei width, GLsizei height, GLint srcRowStride, const struct gl_texture_format *dstFormat, GLubyte *dest, GLint dstRowStride ); +#else +#define _mesa_get_compressed_formats( c, f ) 0 +#define _mesa_compressed_texture_size( c, w, h, d, f ) 0 +#define _mesa_compressed_row_stride( f, w) 0 +#define _mesa_compressed_image_address(c, r, i, f, w, i2 ) 0 +#define _mesa_compress_teximage( c, w, h, sF, s, sRS, dF, d, drs ) ((void)0) +#endif #endif /* TEXCOMPRESS_H */ diff --git a/src/mesa/main/texformat.c b/src/mesa/main/texformat.c index e92572242f7..b5c721f211d 100644 --- a/src/mesa/main/texformat.c +++ b/src/mesa/main/texformat.c @@ -1,3 +1,10 @@ +/** + * \file texformat.c + * Texture formats. + * + * \author Gareth Hughes + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -20,11 +27,9 @@ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Author: - * Gareth Hughes */ + #include "glheader.h" #include "colormac.h" #include "context.h" @@ -36,7 +41,7 @@ #include "texstate.h" -/* Texel fetch routines for all supported formats: +/* Texel fetch routines for all supported formats */ #define DIM 1 #include "texformat_tmp.h" @@ -47,7 +52,10 @@ #define DIM 3 #include "texformat_tmp.h" -/* Have to have this so the FetchTexel function pointer is never NULL. +/** + * Null texel fetch function. + * + * Have to have this so the FetchTexel function pointer is never NULL. */ static void fetch_null_texel( const struct gl_texture_image *texImage, GLint i, GLint j, GLint k, GLvoid *texel ) @@ -60,9 +68,9 @@ static void fetch_null_texel( const struct gl_texture_image *texImage, } -/* ============================================================= - * Default GLchan-based formats: - */ +/***************************************************************/ +/** \name Default GLchan-based formats */ +/*@{*/ const struct gl_texture_format _mesa_texformat_rgba = { MESA_FORMAT_RGBA, /* MesaFormat */ @@ -200,10 +208,12 @@ const struct gl_texture_format _mesa_texformat_depth_component = { fetch_3d_texel_depth_component, /* FetchTexel3D */ }; +/*@}*/ -/* ============================================================= - * Hardware formats: - */ + +/***************************************************************/ +/** \name Hardware formats */ +/*@{*/ const struct gl_texture_format _mesa_texformat_rgba8888 = { MESA_FORMAT_RGBA8888, /* MesaFormat */ @@ -659,9 +669,12 @@ const struct gl_texture_format _mesa_texformat_bgr233 = { }; #endif -/* ============================================================= - * Null format (useful for proxy textures): - */ +/*@}*/ + + +/***************************************************************/ +/** \name Null format (useful for proxy textures) */ +/*@{*/ const struct gl_texture_format _mesa_null_texformat = { -1, /* MesaFormat */ @@ -680,7 +693,21 @@ const struct gl_texture_format _mesa_null_texformat = { fetch_null_texel, /* FetchTexel3D */ }; +/*@}*/ + +/** + * Determine whether a given texture format is a hardware texture + * format. + * + * \param format texture format. + * + * \return GL_TRUE if \p format is a hardware texture format, or GL_FALSE + * otherwise. + * + * \p format is a hardware texture format if gl_texture_format::MesaFormat is + * lower than _format::MESA_FORMAT_RGBA. + */ GLboolean _mesa_is_hardware_tex_format( const struct gl_texture_format *format ) { @@ -688,11 +715,19 @@ _mesa_is_hardware_tex_format( const struct gl_texture_format *format ) } -/* Given an internal texture format (or 1, 2, 3, 4) return a pointer - * to a gl_texture_format which which to store the texture. - * This is called via ctx->Driver.ChooseTextureFormat(). - * Hardware drivers typically override this function with a specialized - * version. +/** + * Choose an appropriate texture format. + * + * \param ctx GL context. + * \param internalFormat internal texture format. + * \param format pixel format. + * \param type data type. + * + * \return a pointer to a gl_texture_format in which to store the texture on + * success, or NULL on failure. + * + * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers + * typically override this function with a specialized version. */ const struct gl_texture_format * _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, @@ -849,11 +884,10 @@ _mesa_choose_tex_format( GLcontext *ctx, GLint internalFormat, } - - -/* +/** * Return the base texture format for the given compressed format - * Called via ctx->Driver.BaseCompressedTexFormat(). + * + * Called via dd_function_table::Driver.BaseCompressedTexFormat. * This function is used by software rasterizers. Hardware drivers * which support texture compression should not use this function but * a specialized function instead. diff --git a/src/mesa/main/texformat.h b/src/mesa/main/texformat.h index 6f19aac7bcf..07fa2adb75f 100644 --- a/src/mesa/main/texformat.h +++ b/src/mesa/main/texformat.h @@ -1,3 +1,10 @@ +/** + * \file texformat.h + * Texture formats definitions. + * + * \author Gareth Hughes + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -20,34 +27,36 @@ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Author: - * Gareth Hughes */ + #ifndef TEXFORMAT_H #define TEXFORMAT_H #include "mtypes.h" -/* - * The Mesa internal texture image types. +/** + * Mesa internal texture image types. + * * All texture images must be stored in one of these formats. */ enum _format { - /* Hardware-friendly formats. Drivers can override the default - * formats and convert texture images to one of these as required. - * The driver's ChooseTextureFormat() function will choose one of - * these formats. - * These formats are all little endian, as shown below. They will be - * most useful for x86-based PC graphics card drivers. + /** + * \name Hardware-friendly formats. + * + * Drivers can override the default formats and convert texture images to + * one of these as required. The driver's + * dd_function_table::ChooseTextureFormat function will choose one of these + * formats. These formats are all little endian, as shown below. They will + * be most useful for x86-based PC graphics card drivers. * - * NOTE: In the default case, some of these formats will be - * duplicates of the generic formats listed below. However, these - * formats guarantee their internal component sizes, while GLchan may - * vary betwen GLubyte, GLushort and GLfloat. + * \note In the default case, some of these formats will be duplicates of + * the generic formats listed below. However, these formats guarantee their + * internal component sizes, while GLchan may vary between GLubyte, GLushort + * and GLfloat. */ + /*@{*/ /* msb <------ TEXEL BITS -----------> lsb */ /* ---- ---- ---- ---- ---- ---- ---- ---- */ MESA_FORMAT_RGBA8888, /* RRRR RRRR GGGG GGGG BBBB BBBB AAAA AAAA */ @@ -64,6 +73,7 @@ enum _format { MESA_FORMAT_CI8, /* CCCC CCCC */ MESA_FORMAT_YCBCR, /* YYYY YYYY UorV UorV */ MESA_FORMAT_YCBCR_REV, /* UorV UorV YYYY YYYY */ + /*@}*/ MESA_FORMAT_RGB_DXT1, MESA_FORMAT_RGBA_DXT1, @@ -71,8 +81,10 @@ enum _format { MESA_FORMAT_RGBA_DXT5, #if 0 - /* upcoming little-endian formats: */ - + /** + * \name Upcoming little-endian formats + */ + /*@{*/ /* msb <------ TEXEL BITS -----------> lsb */ /* ---- ---- ---- ---- ---- ---- ---- ---- */ MESA_FORMAT_ABGR8888, /* AAAA AAAA BBBB BBBB GGGG GGGG RRRR RRRR */ @@ -83,18 +95,22 @@ enum _format { MESA_FORMAT_BGRA5551, /* BBBB BGGG GGRR RRRA */ MESA_FORMAT_LA88, /* LLLL LLLL AAAA AAAA */ MESA_FORMAT_BGR233, /* BBGG GRRR */ + /*@}*/ #endif - /* Generic GLchan-based formats. These are the default formats used - * by the software rasterizer and, unless the driver overrides the - * texture image functions, incoming images will be converted to one - * of these formats. Components are arrays of GLchan values, so - * there will be no big/little endian issues. + /** + * \name Generic GLchan-based formats. + * + * These are the default formats used by the software rasterizer and, unless + * the driver overrides the texture image functions, incoming images will be + * converted to one of these formats. Components are arrays of GLchan + * values, so there will be no big/little endian issues. * - * NOTE: Because these are based on the GLchan datatype, one cannot - * assume 8 bits per channel with these formats. If you require - * GLubyte channels, use one of the hardware formats above. + * \note Because these are based on the GLchan data type, one cannot assume 8 + * bits per channel with these formats. If you require GLubyte channels, + * use one of the hardware formats above. */ + /*@{*/ MESA_FORMAT_RGBA, MESA_FORMAT_RGB, MESA_FORMAT_ALPHA, @@ -103,6 +119,7 @@ enum _format { MESA_FORMAT_INTENSITY, MESA_FORMAT_COLOR_INDEX, MESA_FORMAT_DEPTH_COMPONENT + /*@}*/ }; @@ -117,8 +134,8 @@ extern GLint _mesa_base_compressed_texformat(GLcontext *ctx, GLint intFormat); -/* The default formats, GLchan per component: - */ +/** The default formats, GLchan per component */ +/*@{*/ extern const struct gl_texture_format _mesa_texformat_rgba; extern const struct gl_texture_format _mesa_texformat_rgb; extern const struct gl_texture_format _mesa_texformat_alpha; @@ -127,9 +144,10 @@ extern const struct gl_texture_format _mesa_texformat_luminance_alpha; extern const struct gl_texture_format _mesa_texformat_intensity; extern const struct gl_texture_format _mesa_texformat_color_index; extern const struct gl_texture_format _mesa_texformat_depth_component; +/*@}*/ -/* The hardware-friendly formats: - */ +/** \name The hardware-friendly formats */ +/*@{*/ extern const struct gl_texture_format _mesa_texformat_rgba8888; extern const struct gl_texture_format _mesa_texformat_argb8888; extern const struct gl_texture_format _mesa_texformat_rgb888; @@ -148,9 +166,11 @@ extern const struct gl_texture_format _mesa_texformat_rgb_dxt1; extern const struct gl_texture_format _mesa_texformat_rgba_dxt1; extern const struct gl_texture_format _mesa_texformat_rgba_dxt3; extern const struct gl_texture_format _mesa_texformat_rgba_dxt5; +/*@}*/ -/* The null format: - */ +/** \name The null format */ +/*@{*/ extern const struct gl_texture_format _mesa_null_texformat; +/*@}*/ #endif diff --git a/src/mesa/main/texformat_tmp.h b/src/mesa/main/texformat_tmp.h index 83715d3fdb3..840fcd25498 100644 --- a/src/mesa/main/texformat_tmp.h +++ b/src/mesa/main/texformat_tmp.h @@ -1,3 +1,20 @@ +/** + * \file texformat_tmp.h + * Texel fetch functions template. + * + * This template file is used by texformat.c to generate texel fetch functions + * for 1-D, 2-D and 3-D texture images. + * + * It should be expanded by definining \p DIM as the number texture dimensions + * (1, 2 or 3). According to the value of \p DIM a serie of macros is defined + * for the texel lookup in the gl_texture_image::Data. + * + * \sa texformat.c and FetchTexel. + * + * \author Gareth Hughes + * \author Brian Paul + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -20,16 +37,6 @@ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: - * Gareth Hughes - * Brian Paul - */ - - -/* - * This template file generates texel fetch functions for 1-D, 2-D and 3-D - * texture images. */ diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index de28839463a..90f03322373 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -1,3 +1,14 @@ +/** + * \file teximage.c + * Texture images manipulation functions. + * + * \note Mesa's native texture data type is GLchan. Native formats are + * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, and + * GL_COLOR_INDEX. + * + * \note Device drivers are free to implement any internal format they want. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -22,6 +33,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "context.h" #include "convolve.h" @@ -37,16 +49,6 @@ #include "mtypes.h" -/* - * NOTES: - * - * Mesa's native texture datatype is GLchan. Native formats are - * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, - * and GL_COLOR_INDEX. - * Device drivers are free to implement any internal format they want. - */ - - #if 0 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img) { @@ -101,7 +103,6 @@ static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img) #endif - /* * Compute floor(log_base_2(n)). * If n <= 0 return -1. @@ -130,15 +131,17 @@ logbase2( int n ) -/* - * Given an internal texture format enum or 1, 2, 3, 4 return the - * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE, - * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. +/** + * Get base internal format. + * + * \param ctx GL context. + * \param format internal texture format enum or 1, 2, 3, 4. + * + * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, + * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. * * This is the format which is used during texture application (i.e. the * texture format and env mode determine the arithmetic used. - * - * Return -1 if invalid enum. */ GLint _mesa_base_tex_format( GLcontext *ctx, GLint format ) @@ -270,9 +273,9 @@ _mesa_base_tex_format( GLcontext *ctx, GLint format ) } -/* - * Test if the given image format is a color/rgba format. That is, - * not color index, depth, stencil, etc. +/** + * Test if the given image format is a color/RGBA format, i.e., not + * color index, depth, stencil, etc. */ static GLboolean is_color_format(GLenum format) @@ -328,6 +331,9 @@ is_color_format(GLenum format) } +/** + * Test if the given image format is a color index format. + */ static GLboolean is_index_format(GLenum format) { @@ -347,9 +353,15 @@ is_index_format(GLenum format) /** - * Return GL_TRUE if internalFormat is a supported compressed format, - * return GL_FALSE otherwise. - * \param - internalFormat - the internal format token provided by the user + * Test if it is a supported compressed format. + * + * \param internalFormat the internal format token provided by the user. + * + * \ret GL_TRUE if \p internalFormat is a supported compressed format, or + * GL_FALSE otherwise. + * + * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX + * are supported. */ static GLboolean is_compressed_format(GLenum internalFormat) @@ -364,9 +376,15 @@ is_compressed_format(GLenum internalFormat) } -/* +/** * Store a gl_texture_image pointer in a gl_texture_object structure * according to the target and level parameters. + * + * \param tObj texture object. + * \param target texture target. + * \param level image level. + * \param texImage texture image. + * * This was basically prompted by the introduction of cube maps. */ void @@ -411,11 +429,14 @@ _mesa_set_tex_image(struct gl_texture_object *tObj, } - /** - * Return new gl_texture_image struct with all fields initialized to zero. + * Allocate a texture image structure. + * * Called via ctx->Driver.NewTextureImage() unless overriden by a device * driver. + * + * \return a pointer to gl_texture_image struct with all fields initialized to + * zero. */ struct gl_texture_image * _mesa_new_texture_image( GLcontext *ctx ) @@ -425,9 +446,12 @@ _mesa_new_texture_image( GLcontext *ctx ) } - /** - * Delete/free the given texture image and associated image data if it's not + * Free texture image. + * + * \param teximage texture image. + * + * Free the texture image structure and the associated image data if it's not * marked as client data. */ void @@ -441,8 +465,12 @@ _mesa_delete_texture_image( struct gl_texture_image *teximage ) } -/* - * Return GL_TRUE if the target is a proxy target. +/** + * Test if a target is a proxy target. + * + * \param target texture target. + * + * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise. */ static GLboolean is_proxy_target(GLenum target) @@ -455,9 +483,16 @@ is_proxy_target(GLenum target) } -/* - * Given a texture unit and a texture target, return the corresponding - * texture object. +/** + * Get the texture object that corresponds to the target of the given texture unit. + * + * \param ctx GL context. + * \param texUnit texture unit. + * \param target texture target. + * + * \return pointer to the texture object on success, or NULL on failure. + * + * \sa gl_texture_unit. */ struct gl_texture_object * _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit, @@ -501,9 +536,18 @@ _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit, } -/* - * Return the texture image struct which corresponds to target and level - * for the given texture unit. +/** + * Get the texture image struct which corresponds to target and level + * of the given texture unit. + * + * \param ctx GL context. + * \param texUnit texture unit. + * \param target texture target. + * \param level image level. + * + * \return pointer to the texture image structure on success, or NULL on failure. + * + * \sa gl_texture_unit. */ struct gl_texture_image * _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit, @@ -694,9 +738,16 @@ _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level) } -/* - * Return the maximum number of allows mipmap levels for the given - * texture target. +/** + * Get the maximum number of allowed mipmap levels. + * + * \param ctx GL context. + * \param target texture target. + * + * \return the maximum number of allowed mipmap levels for the given + * texture target, or zero if passed a bad target. + * + * \sa gl_constants. */ GLint _mesa_max_texture_levels(GLcontext *ctx, GLenum target) @@ -786,6 +837,9 @@ make_null_texture(GLint width, GLint height, GLint depth, GLenum format) /** * Reset the fields of a gl_texture_image struct to zero. + * + * \param img texture image structure. + * * This is called when a proxy texture test fails, we set all the * image members (except DriverData) to zero. * It's also used in glTexImage[123]D as a safeguard to be sure all @@ -817,8 +871,19 @@ clear_teximage_fields(struct gl_texture_image *img) } -/* +/** * Initialize basic fields of the gl_texture_image struct. + * + * \param ctx GL context. + * \param target texture target. + * \param img texture image structure to be initialized. + * \param width image width. + * \param height image height. + * \param depth image depth. + * \param border image border. + * \param internalFormat internal format. + * + * Fills in the fields of \p img with the given information. * Note: width, height and depth include the border. */ void @@ -978,11 +1043,25 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, /** - * Test glTexImage[123]D() parameters for errors. - * This function calls the ctx->Driver.TestProxyTexImage() function to - * check the level and size. - * \param dimensions must be 1 or 2 or 3 - * \return GL_TRUE if an error was detected or GL_FALSE if no errors + * Test the glTexImage[123]D() parameters for errors. + * + * \param ctx GL context. + * \param target texture target given by the user. + * \param level image level given by the user. + * \param internalFormat internal format given by the user. + * \param format pixel data format given by the user. + * \param type pixel data type given by the user. + * \param dimensions texture image dimensions (must be 1, 2 or 3). + * \param width image width given by the user. + * \param height image height given by the user. + * \param depth image depth given by the user. + * \param border image border given by the user. + * + * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. + * + * Verifies each of the parameters against the constants specified in + * __GLcontextRec::Const and the supported extensions, and according to the + * OpenGL specification. */ static GLboolean texture_error_check( GLcontext *ctx, GLenum target, @@ -1186,12 +1265,27 @@ texture_error_check( GLcontext *ctx, GLenum target, } - -/* +/** * Test glTexSubImage[123]D() parameters for errors. - * Input: - * dimensions - must be 1 or 2 or 3 - * Return: GL_TRUE = an error was detected, GL_FALSE = no errors + * + * \param ctx GL context. + * \param dimensions texture image dimensions (must be 1, 2 or 3). + * \param target texture target given by the user. + * \param level image level given by the user. + * \param xoffset sub-image x offset given by the user. + * \param yoffset sub-image y offset given by the user. + * \param zoffset sub-image z offset given by the user. + * \param format pixel data format given by the user. + * \param type pixel data type given by the user. + * \param width image width given by the user. + * \param height image height given by the user. + * \param depth image depth given by the user. + * + * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. + * + * Verifies each of the parameters against the constants specified in + * __GLcontextRec::Const and the supported extensions, and according to the + * OpenGL specification. */ static GLboolean subtexture_error_check( GLcontext *ctx, GLuint dimensions, @@ -1353,10 +1447,24 @@ subtexture_error_check( GLcontext *ctx, GLuint dimensions, } -/* +/** * Test glCopyTexImage[12]D() parameters for errors. - * Input: dimensions - must be 1 or 2 or 3 - * Return: GL_TRUE = an error was detected, GL_FALSE = no errors + * + * \param ctx GL context. + * \param dimensions texture image dimensions (must be 1, 2 or 3). + * \param target texture target given by the user. + * \param level image level given by the user. + * \param internalFormat internal format given by the user. + * \param width image width given by the user. + * \param height image height given by the user. + * \param depth image depth given by the user. + * \param border texture border. + * + * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. + * + * Verifies each of the parameters against the constants specified in + * __GLcontextRec::Const and the supported extensions, and according to the + * OpenGL specification. */ static GLboolean copytexture_error_check( GLcontext *ctx, GLuint dimensions, @@ -1477,6 +1585,25 @@ copytexture_error_check( GLcontext *ctx, GLuint dimensions, } +/** + * Test glCopyTexImage[12]D() parameters for errors. + * + * \param ctx GL context. + * \param dimensions texture image dimensions (must be 1, 2 or 3). + * \param target texture target given by the user. + * \param level image level given by the user. + * \param xoffset sub-image x offset given by the user. + * \param yoffset sub-image y offset given by the user. + * \param zoffset sub-image z offset given by the user. + * \param width image width given by the user. + * \param height image height given by the user. + * + * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. + * + * Verifies each of the parameters against the constants specified in + * __GLcontextRec::Const and the supported extensions, and according to the + * OpenGL specification. + */ static GLboolean copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions, GLenum target, GLint level, @@ -1618,7 +1745,15 @@ copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions, } - +/** + * Get texture image. + * + * \param target texture target. + * \param level image level. + * \param format pixel data format. + * \param type pixel data type. + * \param pixels pixel data. + */ void _mesa_GetTexImage( GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels ) diff --git a/src/mesa/main/teximage.h b/src/mesa/main/teximage.h index ed0008e37f8..e90cd717052 100644 --- a/src/mesa/main/teximage.h +++ b/src/mesa/main/teximage.h @@ -1,3 +1,8 @@ +/** + * \file teximage.h + * Texture images manipulation functions. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -30,8 +35,8 @@ #include "mtypes.h" -/*** Internal functions ***/ - +/** \name Internal functions */ +/*@{*/ extern GLint _mesa_base_tex_format( GLcontext *ctx, GLint format ); @@ -86,8 +91,11 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, GLint internalFormat, GLenum format, GLenum type, GLint width, GLint height, GLint depth, GLint border); -/*** API entry point functions ***/ +/*@}*/ + +/** \name API entry point functions */ +/*@{*/ extern void _mesa_TexImage1D( GLenum target, GLint level, GLint internalformat, @@ -214,5 +222,6 @@ _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, extern void _mesa_GetCompressedTexImageARB(GLenum target, GLint lod, GLvoid *img); +/*@}*/ #endif diff --git a/src/mesa/main/texobj.c b/src/mesa/main/texobj.c index 19b2b3f8e4a..e131fae50e4 100644 --- a/src/mesa/main/texobj.c +++ b/src/mesa/main/texobj.c @@ -1,3 +1,8 @@ +/** + * \file texobj.c + * Texture object management. + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -22,6 +27,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "colortab.h" #include "context.h" @@ -35,16 +41,30 @@ #include "mtypes.h" +/**********************************************************************/ +/** \name Internal functions */ +/*@{*/ + /** - * Allocate and initialize a new texture object + * Allocate and initialize a new texture object and add it to the linked list of + * texture objects. + * * Called via ctx->Driver.NewTextureObject, unless overridden by a device * driver. - * \param ctx the rendering context - * \param name the integer name for the texture object - * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, - * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV - * zero is ok for the sake of GenTextures() - * \return pointer to new texture object + * + * \param shared the shared GL state structure to contain the texture object + * \param name integer name for the texture object + * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, + * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake + * of GenTextures() + * + * \return pointer to new texture object. + * + * Allocate and initialize a gl_texture_object structure, and insert in the + * shared state texture list while holding its mutex. + * If <tt>name > 0</tt> then also insert the new texture object into the hash + * table. + * */ struct gl_texture_object * _mesa_new_texture_object( GLcontext *ctx, GLuint name, GLenum target ) @@ -103,14 +123,20 @@ _mesa_initialize_texture_object( struct gl_texture_object *obj, obj->CompareFunc = GL_LEQUAL; /* ARB_shadow */ obj->DepthMode = GL_LUMINANCE; /* ARB_depth_texture */ obj->ShadowAmbient = 0.0F; /* ARB/SGIX_shadow_ambient */ - _mesa_init_colortable(&obj->Palette); + _mesa_init_one_colortable(&obj->Palette); } -/* - * Deallocate a texture object. It should have already been removed from - * the texture object pool. - * \param texObj the texture object to deallocate +/** + * Deallocate a texture object struct. It should have already been + * removed from the texture object pool. + * + * \param shared the shared GL state to which the object belongs. + * \param texOjb the texture object to delete. + * + * Unlink the texture object from the shared state texture linked list while + * holding its lock. If the texture is a name number it's also removed from the + * hash table. Finally frees the texture images and the object itself. */ void _mesa_delete_texture_object( GLcontext *ctx, struct gl_texture_object *texObj ) @@ -121,7 +147,7 @@ _mesa_delete_texture_object( GLcontext *ctx, struct gl_texture_object *texObj ) assert(texObj); - _mesa_free_colortable_data(&texObj->Palette); + _mesa_free_one_colortable(&texObj->Palette); /* free the texture images */ for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { @@ -193,9 +219,11 @@ _mesa_remove_texture_object( GLcontext *ctx, struct gl_texture_object *texObj ) } } - -/* +/** * Copy texture object state from one texture object to another. + * + * \param dest destination texture object. + * \param src source texture object. */ void _mesa_copy_texture_object( struct gl_texture_object *dest, @@ -232,8 +260,13 @@ _mesa_copy_texture_object( struct gl_texture_object *dest, } -/* - * Report why a texture object is incomplete. (for debug only) +/** + * Report why a texture object is incomplete. + * + * \param t texture object. + * \param why string describing why it's incomplete. + * + * \note For debug purposes only. */ #if 0 static void @@ -242,13 +275,21 @@ incomplete(const struct gl_texture_object *t, const char *why) _mesa_printf("Texture Obj %d incomplete because: %s\n", t->Name, why); } #else -#define incomplete(a, b) +#define incomplete(t, why) #endif -/* +/** * Examine a texture object to determine if it is complete. - * The t->Complete flag will be set to GL_TRUE or GL_FALSE accordingly. + * + * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE + * accordingly. + * + * \param ctx GL context. + * \param t texture object. + * + * According to the texture target, verifies that each of the mipmaps is + * present and has the expected size. */ void _mesa_test_texobj_completeness( const GLcontext *ctx, @@ -525,13 +566,33 @@ _mesa_test_texobj_completeness( const GLcontext *ctx, } } +/*@}*/ -_glthread_DECLARE_STATIC_MUTEX(GenTexturesLock); +/***********************************************************************/ +/** \name API functions */ +/*@{*/ -/* - * Execute glGenTextures +/** + * Texture name generation lock. + * + * Used by _mesa_GenTextures() to guarantee that the generation and allocation + * of texture IDs is atomic. */ +_glthread_DECLARE_STATIC_MUTEX(GenTexturesLock); + +/** + * Generate texture names. + * + * \param n number of texture names to be generated. + * \param texName an array in which will hold the generated texture names. + * + * \sa glGenTextures(). + * + * While holding the GenTexturesLock lock, calls _mesa_HashFindFreeKeyBlock() + * to find a block of free texture IDs which are stored in \p texName. + * Corresponding empty texture objects are also generated. + */ void _mesa_GenTextures( GLsizei n, GLuint *texName ) { @@ -576,10 +637,17 @@ _mesa_GenTextures( GLsizei n, GLuint *texName ) _glthread_UNLOCK_MUTEX(GenTexturesLock); } - - -/* - * Execute glDeleteTextures +/** + * Delete named textures. + * + * \param n number of textures to be deleted. + * \param texName array of textures names to be deleted. + * + * \sa glDeleteTextures(). + * + * For each texture checks if its bound to any of the texture units, unbinding + * it and decrementing the reference count if so. If the texture reference + * count is zero, delete its object. */ void _mesa_DeleteTextures( GLsizei n, const GLuint *texName) @@ -655,10 +723,20 @@ _mesa_DeleteTextures( GLsizei n, const GLuint *texName) } } - - -/* - * Execute glBindTexture +/** + * Bind a named texture to a texturing target. + * + * \param target texture target. + * \param texName texture name. + * + * \sa glBindTexture(). + * + * Determines the old texture object bound and returns immediately if rebinding + * the same texture. Get the current texture which is either a default texture + * if name is null, a named texture from the hash, or a new texture if the + * given texture name is new. Increments its reference count, binds it, and + * calls dd_function_table::BindTexture. Decrements the old texture reference + * count and deletes it if it reaches zero. */ void _mesa_BindTexture( GLenum target, GLuint texName ) @@ -804,10 +882,17 @@ _mesa_BindTexture( GLenum target, GLuint texName ) } } - - -/* - * Execute glPrioritizeTextures +/** + * Set texture priorities. + * + * \param n number of textures. + * \param texName texture names. + * \param priorities corresponding texture priorities. + * + * \sa glPrioritizeTextures(). + * + * Looks up each texture in the hash, clamps the corresponding priority between + * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture. */ void _mesa_PrioritizeTextures( GLsizei n, const GLuint *texName, @@ -840,10 +925,19 @@ _mesa_PrioritizeTextures( GLsizei n, const GLuint *texName, ctx->NewState |= _NEW_TEXTURE; } - - -/* - * Execute glAreTexturesResident +/** + * See if textures are loaded in texture memory. + * + * \param n number of textures to query. + * \param texName array with the texture names. + * \param residences array which will hold the residence status. + * + * \return GL_TRUE if all textures are resident and \p residences is left unchanged, + * + * \sa glAreTexturesResident(). + * + * Looks up each texture in the hash and calls + * dd_function_table::IsTextureResident. */ GLboolean _mesa_AreTexturesResident(GLsizei n, const GLuint *texName, @@ -894,10 +988,17 @@ _mesa_AreTexturesResident(GLsizei n, const GLuint *texName, return allResident; } - - -/* - * Execute glIsTexture +/** + * See if a name corresponds to a texture. + * + * \param texture texture name. + * + * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE + * otherwise. + * + * \sa glIsTexture(). + * + * Calls _mesa_HashLookup(). */ GLboolean _mesa_IsTexture( GLuint texture ) @@ -906,3 +1007,5 @@ _mesa_IsTexture( GLuint texture ) ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); return texture > 0 && _mesa_HashLookup(ctx->Shared->TexObjects, texture); } + +/*@}*/ diff --git a/src/mesa/main/texobj.h b/src/mesa/main/texobj.h index 6311a50a717..f7e8e690c4c 100644 --- a/src/mesa/main/texobj.h +++ b/src/mesa/main/texobj.h @@ -1,3 +1,7 @@ +/** + * \file texobj.h + * Texture object management. + */ /* * Mesa 3-D graphics library @@ -31,10 +35,10 @@ #include "mtypes.h" - -/* - * Internal functions +/** + * \name Internal functions */ +/*@{*/ extern struct gl_texture_object * _mesa_new_texture_object( GLcontext *ctx, GLuint name, GLenum target ); @@ -60,10 +64,13 @@ extern void _mesa_test_texobj_completeness( const GLcontext *ctx, struct gl_texture_object *obj ); +/*@}*/ -/* - * API functions + +/** + * \name API functions */ +/*@{*/ extern void _mesa_GenTextures( GLsizei n, GLuint *textures ); @@ -86,9 +93,9 @@ extern GLboolean _mesa_AreTexturesResident( GLsizei n, const GLuint *textures, GLboolean *residences ); - extern GLboolean _mesa_IsTexture( GLuint texture ); +/*@}*/ #endif diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index 9359c7b1b19..59fd7a9928d 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -25,10 +25,12 @@ #include "glheader.h" #include "colormac.h" +#include "colortab.h" #include "context.h" #include "enums.h" #include "extensions.h" #include "macros.h" +#include "nvfragprog.h" #include "texobj.h" #include "teximage.h" #include "texstate.h" @@ -1909,7 +1911,7 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) /* Texture Coord Generation */ /**********************************************************************/ - +#if FEATURE_texgen void _mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params ) { @@ -2458,7 +2460,7 @@ _mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params ) return; } } - +#endif /* GL_ARB_multitexture */ void @@ -2643,3 +2645,347 @@ _mesa_GetPixelTexGenParameterivSGIS(GLenum target, GLint *value) _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelTexGenParameterivSGIS(target)"); } } + + + +/**********************************************************************/ +/***** State management *****/ +/**********************************************************************/ + + +/** + * \note This routine refers to derived texture attribute values to + * compute the ENABLE_TEXMAT flags, but is only called on + * _NEW_TEXTURE_MATRIX. On changes to _NEW_TEXTURE, the ENABLE_TEXMAT + * flags are updated by _mesa_update_textures(), below. + * + * \param ctx GL context. + */ +static void +update_texture_matrices( GLcontext *ctx ) +{ + GLuint i; + + ctx->Texture._TexMatEnabled = 0; + + for (i=0; i < ctx->Const.MaxTextureUnits; i++) { + if (ctx->TextureMatrixStack[i].Top->flags & MAT_DIRTY) { + _math_matrix_analyse( ctx->TextureMatrixStack[i].Top ); + + if (ctx->Texture.Unit[i]._ReallyEnabled && + ctx->TextureMatrixStack[i].Top->type != MATRIX_IDENTITY) + ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i); + + if (ctx->Driver.TextureMatrix) + ctx->Driver.TextureMatrix( ctx, i, ctx->TextureMatrixStack[i].Top); + } + } +} + + + + +/** + * \note This routine refers to derived texture matrix values to + * compute the ENABLE_TEXMAT flags, but is only called on + * _NEW_TEXTURE. On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT + * flags are updated by _mesa_update_texture_matrices, above. + * + * \param ctx GL context. + */ +static void +update_texture_state( GLcontext *ctx ) +{ + GLuint unit; + + ctx->Texture._EnabledUnits = 0; + ctx->Texture._GenFlags = 0; + ctx->Texture._TexMatEnabled = 0; + ctx->Texture._TexGenEnabled = 0; + + /* Update texture unit state. + * XXX this loop should probably be broken into separate loops for + * texture coord units and texture image units. + */ + for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + GLuint enableBits; + + texUnit->_ReallyEnabled = 0; + texUnit->_GenFlags = 0; + + /* Get the bitmask of texture enables */ + if (ctx->FragmentProgram.Enabled && ctx->FragmentProgram.Current) { + enableBits = ctx->FragmentProgram.Current->TexturesUsed[unit]; + } + else { + if (!texUnit->Enabled) + continue; + enableBits = texUnit->Enabled; + } + + /* Look for the highest-priority texture target that's enabled and + * complete. That's the one we'll use for texturing. If we're using + * a fragment program we're guaranteed that bitcount(enabledBits) <= 1. + */ + if (texUnit->Enabled & TEXTURE_CUBE_BIT) { + struct gl_texture_object *texObj = texUnit->CurrentCubeMap; + if (!texObj->Complete) { + _mesa_test_texobj_completeness(ctx, texObj); + } + if (texObj->Complete) { + texUnit->_ReallyEnabled = TEXTURE_CUBE_BIT; + texUnit->_Current = texObj; + } + } + + if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_3D_BIT)) { + struct gl_texture_object *texObj = texUnit->Current3D; + if (!texObj->Complete) { + _mesa_test_texobj_completeness(ctx, texObj); + } + if (texObj->Complete) { + texUnit->_ReallyEnabled = TEXTURE_3D_BIT; + texUnit->_Current = texObj; + } + } + + if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_RECT_BIT)) { + struct gl_texture_object *texObj = texUnit->CurrentRect; + if (!texObj->Complete) { + _mesa_test_texobj_completeness(ctx, texObj); + } + if (texObj->Complete) { + texUnit->_ReallyEnabled = TEXTURE_RECT_BIT; + texUnit->_Current = texObj; + } + } + + if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_2D_BIT)) { + struct gl_texture_object *texObj = texUnit->Current2D; + if (!texObj->Complete) { + _mesa_test_texobj_completeness(ctx, texObj); + } + if (texObj->Complete) { + texUnit->_ReallyEnabled = TEXTURE_2D_BIT; + texUnit->_Current = texObj; + } + } + + if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_1D_BIT)) { + struct gl_texture_object *texObj = texUnit->Current1D; + if (!texObj->Complete) { + _mesa_test_texobj_completeness(ctx, texObj); + } + if (texObj->Complete) { + texUnit->_ReallyEnabled = TEXTURE_1D_BIT; + texUnit->_Current = texObj; + } + } + + if (!texUnit->_ReallyEnabled) { + texUnit->_Current = NULL; + continue; + } + + if (texUnit->_ReallyEnabled) + ctx->Texture._EnabledUnits |= (1 << unit); + + if (texUnit->TexGenEnabled) { + if (texUnit->TexGenEnabled & S_BIT) { + texUnit->_GenFlags |= texUnit->_GenBitS; + } + if (texUnit->TexGenEnabled & T_BIT) { + texUnit->_GenFlags |= texUnit->_GenBitT; + } + if (texUnit->TexGenEnabled & Q_BIT) { + texUnit->_GenFlags |= texUnit->_GenBitQ; + } + if (texUnit->TexGenEnabled & R_BIT) { + texUnit->_GenFlags |= texUnit->_GenBitR; + } + + ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit); + ctx->Texture._GenFlags |= texUnit->_GenFlags; + } + + if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY) + ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit); + } + + ctx->Texture._EnabledCoordUnits = ctx->Texture._EnabledUnits; + /* Fragment programs may need texture coordinates but not the + * corresponding texture images. + */ + if (ctx->FragmentProgram.Enabled && ctx->FragmentProgram.Current) { + ctx->Texture._EnabledCoordUnits |= + (ctx->FragmentProgram.Current->InputsRead >> FRAG_ATTRIB_TEX0); + } +} + + +void _mesa_update_texture( GLcontext *ctx, GLuint new_state ) +{ + if (new_state & _NEW_TEXTURE_MATRIX) + update_texture_matrices( ctx ); + + if (new_state & _NEW_TEXTURE) + update_texture_state( ctx ); +} + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +/** + * Allocate the proxy textures for the given context. + * + * \param ctx the context to allocate proxies for. + * + * \return GL_TRUE on success, or GL_FALSE on failure + * + * If run out of memory part way through the allocations, clean up and return + * GL_FALSE. + */ +static GLboolean +alloc_proxy_textures( GLcontext *ctx ) +{ + ctx->Texture.Proxy1D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_1D); + if (!ctx->Texture.Proxy1D) + goto cleanup; + + ctx->Texture.Proxy2D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_2D); + if (!ctx->Texture.Proxy2D) + goto cleanup; + + ctx->Texture.Proxy3D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_3D); + if (!ctx->Texture.Proxy3D) + goto cleanup; + + ctx->Texture.ProxyCubeMap = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_CUBE_MAP_ARB); + if (!ctx->Texture.ProxyCubeMap) + goto cleanup; + + ctx->Texture.ProxyRect = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_RECTANGLE_NV); + if (!ctx->Texture.ProxyRect) + goto cleanup; + + return GL_TRUE; + + cleanup: + if (ctx->Texture.Proxy1D) + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D); + if (ctx->Texture.Proxy2D) + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D); + if (ctx->Texture.Proxy3D) + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D); + if (ctx->Texture.ProxyCubeMap) + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap); + if (ctx->Texture.ProxyRect) + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect); + return GL_FALSE; +} + + +/** + * Initialize a texture unit. + * + * \param ctx GL context. + * \param unit texture unit number to be initialized. + */ +static void +init_texture_unit( GLcontext *ctx, GLuint unit ) +{ + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + + texUnit->EnvMode = GL_MODULATE; + ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 ); + + texUnit->CombineModeRGB = GL_MODULATE; + texUnit->CombineModeA = GL_MODULATE; + texUnit->CombineSourceRGB[0] = GL_TEXTURE; + texUnit->CombineSourceRGB[1] = GL_PREVIOUS_EXT; + texUnit->CombineSourceRGB[2] = GL_CONSTANT_EXT; + texUnit->CombineSourceA[0] = GL_TEXTURE; + texUnit->CombineSourceA[1] = GL_PREVIOUS_EXT; + texUnit->CombineSourceA[2] = GL_CONSTANT_EXT; + texUnit->CombineOperandRGB[0] = GL_SRC_COLOR; + texUnit->CombineOperandRGB[1] = GL_SRC_COLOR; + texUnit->CombineOperandRGB[2] = GL_SRC_ALPHA; + texUnit->CombineOperandA[0] = GL_SRC_ALPHA; + texUnit->CombineOperandA[1] = GL_SRC_ALPHA; + texUnit->CombineOperandA[2] = GL_SRC_ALPHA; + texUnit->CombineScaleShiftRGB = 0; + texUnit->CombineScaleShiftA = 0; + + texUnit->TexGenEnabled = 0; + texUnit->GenModeS = GL_EYE_LINEAR; + texUnit->GenModeT = GL_EYE_LINEAR; + texUnit->GenModeR = GL_EYE_LINEAR; + texUnit->GenModeQ = GL_EYE_LINEAR; + texUnit->_GenBitS = TEXGEN_EYE_LINEAR; + texUnit->_GenBitT = TEXGEN_EYE_LINEAR; + texUnit->_GenBitR = TEXGEN_EYE_LINEAR; + texUnit->_GenBitQ = TEXGEN_EYE_LINEAR; + + /* Yes, these plane coefficients are correct! */ + ASSIGN_4V( texUnit->ObjectPlaneS, 1.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->ObjectPlaneT, 0.0, 1.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->ObjectPlaneR, 0.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->ObjectPlaneQ, 0.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->EyePlaneS, 1.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->EyePlaneT, 0.0, 1.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->EyePlaneR, 0.0, 0.0, 0.0, 0.0 ); + ASSIGN_4V( texUnit->EyePlaneQ, 0.0, 0.0, 0.0, 0.0 ); + + texUnit->Current1D = ctx->Shared->Default1D; + texUnit->Current2D = ctx->Shared->Default2D; + texUnit->Current3D = ctx->Shared->Default3D; + texUnit->CurrentCubeMap = ctx->Shared->DefaultCubeMap; + texUnit->CurrentRect = ctx->Shared->DefaultRect; +} + + +GLboolean _mesa_init_texture( GLcontext * ctx ) +{ + int i; + + assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS); + assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS); + + /* Effectively bind the default textures to all texture units */ + ctx->Shared->Default1D->RefCount += MAX_TEXTURE_UNITS; + ctx->Shared->Default2D->RefCount += MAX_TEXTURE_UNITS; + ctx->Shared->Default3D->RefCount += MAX_TEXTURE_UNITS; + ctx->Shared->DefaultCubeMap->RefCount += MAX_TEXTURE_UNITS; + ctx->Shared->DefaultRect->RefCount += MAX_TEXTURE_UNITS; + + /* Texture group */ + ctx->Texture.CurrentUnit = 0; /* multitexture */ + ctx->Texture._EnabledUnits = 0; + for (i=0; i<MAX_TEXTURE_UNITS; i++) + init_texture_unit( ctx, i ); + ctx->Texture.SharedPalette = GL_FALSE; + _mesa_init_one_colortable(&ctx->Texture.Palette); + + /* Allocate proxy textures */ + if (!alloc_proxy_textures( ctx )) + return GL_FALSE; + + return GL_TRUE; +} + +void _mesa_free_texture_data( GLcontext *ctx ) +{ + int i; + + /* Free proxy texture objects */ + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D ); + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D ); + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D ); + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap ); + (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect ); + + for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++) + _mesa_free_colortable_data( &ctx->Texture.Unit[i].ColorTable ); +} diff --git a/src/mesa/main/texstate.h b/src/mesa/main/texstate.h index de4678665dd..d2cde7b326f 100644 --- a/src/mesa/main/texstate.h +++ b/src/mesa/main/texstate.h @@ -1,3 +1,7 @@ +/** + * \file texstate.h + * Texture state management. + */ /* * Mesa 3-D graphics library @@ -38,7 +42,10 @@ extern void _mesa_print_texunit_state( GLcontext *ctx, GLuint unit ); -/*** Called from API ***/ +/** + * \name Called from API + */ +/*@{*/ extern void _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params ); @@ -116,8 +123,6 @@ extern void _mesa_TexGeniv( GLenum coord, GLenum pname, const GLint *params ); - - /* * GL_ARB_multitexture */ @@ -165,5 +170,23 @@ _mesa_GetPixelTexGenParameterfvSGIS(GLenum target, GLfloat *value); extern void _mesa_GetPixelTexGenParameterivSGIS(GLenum target, GLint *value); +/*@}*/ + + +/** + * \name Initialization, state maintenance + */ +/*@{*/ + +extern void +_mesa_update_texture( GLcontext *ctx, GLuint new_state ); + +extern GLboolean +_mesa_init_texture( GLcontext *ctx ); + +extern void +_mesa_free_texture_data( GLcontext *ctx ); + +/*@}*/ #endif diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index f9afbb6b87f..16dd320e827 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -157,7 +157,7 @@ components_in_intformat( GLint format ) * apply pixel transfer ops into a temporary image buffer. Then, * convert the temporary image into the special hardware format. * - * Input: + * \param * dimensions - 1, 2, or 3 * texDestFormat - GL_LUMINANCE, GL_INTENSITY, GL_LUMINANCE_ALPHA, GL_ALPHA, * GL_RGB or GL_RGBA (the destination format) @@ -435,7 +435,7 @@ transfer_teximage(GLcontext *ctx, GLuint dimensions, * Transfer a texture image from user space to <destAddr> applying all * needed image transfer operations and storing the result in the format * specified by <dstFormat>. <dstFormat> may be any format from texformat.h. - * Input: + * \param * dimensions - 1, 2 or 3 * baseInternalFormat - base format of the internal texture format * specified by the user. This is very important, see below. @@ -445,7 +445,7 @@ transfer_teximage(GLcontext *ctx, GLuint dimensions, * dstX/Y/Zoffset - as specified by glTexSubImage * dstRowStride - stride between dest rows in bytes * dstImageStride - stride between dest images in bytes - * srcFormat, srcType - incoming image format and datatype + * srcFormat, srcType - incoming image format and data type * srcAddr - source image address * srcPacking - packing params of source image * diff --git a/src/mesa/main/texstore.h b/src/mesa/main/texstore.h index 6d3a4397b2d..f6931dc5e7b 100644 --- a/src/mesa/main/texstore.h +++ b/src/mesa/main/texstore.h @@ -1,3 +1,10 @@ +/** + * \file texstore.h + * Texture image storage. + * + * \author Brian Paul + */ + /* * Mesa 3-D graphics library * Version: 5.1 @@ -22,11 +29,6 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/* - * Authors: - * Brian Paul - */ - #ifndef TEXSTORE_H #define TEXSTORE_H diff --git a/src/mesa/main/texutil.c b/src/mesa/main/texutil.c index 19d3df1109b..cf50da813ac 100644 --- a/src/mesa/main/texutil.c +++ b/src/mesa/main/texutil.c @@ -868,7 +868,7 @@ _mesa_convert_texsubimage1d( GLint mesaFormat, * with the _mesa_transfer_teximage() function. That function will also * do image transfer operations such as scale/bias and convolution. * - * Input: + * \param * mesaFormat - one of the MESA_FORMAT_* values from texformat.h * xoffset, yoffset - position in dest image to put data * width, height - incoming image size, also size of dest region. diff --git a/src/mesa/main/texutil_tmp.h b/src/mesa/main/texutil_tmp.h index 2dd3ccee5ee..7b2ccaa1c90 100644 --- a/src/mesa/main/texutil_tmp.h +++ b/src/mesa/main/texutil_tmp.h @@ -1,3 +1,28 @@ +/** + * \file texutil_tmp.h + * Texture conversion templates. + * + * \author Gareth Hughes + * + * For 2D and 3D texture images, we generate functions for + * - conversion without pixel unpacking and standard stride + * - conversion without pixel unpacking and non-standard stride + * - conversion with pixel unpacking and standard stride + * - conversion with pixel unpacking and non-standard stride + * + * Macros which need to be defined before including this file: + * - \c TAG(x) - the function name wrapper + * - \c DST_TYPE - the destination texel data type (GLuint, GLushort, etc) + * - \c DST_TEXELS_PER_DWORD - number of destination texels that'll fit in 4 bytes + * - \c CONVERT_TEXEL - code to convert from source to destination texel + * - \c CONVER_TEXEL_DWORD - if multiple texels fit in 4 bytes, this macros + * will convert/store multiple texels at once + * - \c CONVERT_DIRECT - if defined, just memcpy texels from source to destination + * - \c SRC_TEXEL_BYTES - bytes per source texel + * - \c PRESERVE_DST_TYPE - if defined, don't undefined these macros at end + * + * \sa convert_func. + */ /* * Mesa 3-D graphics library @@ -21,30 +46,6 @@ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Author: - * Gareth Hughes - */ - - -/* - * For 2D and 3D texture images, we generate functions for - * - conversion without pixel unpacking and standard stride - * - conversion without pixel unpacking and non-standard stride - * - conversion with pixel unpacking and standard stride - * - conversion with pixel unpacking and non-standard stride - * - * - * Macros which need to be defined before including this file: - * TAG(x) - the function name wrapper - * DST_TYPE - the destination texel datatype (GLuint, GLushort, etc) - * DST_TEXELS_PER_DWORD - number of dest texels that'll fit in 4 bytes - * CONVERT_TEXEL - code to convert from source to dest texel - * CONVER_TEXEL_DWORD - if multiple texels fit in 4 bytes, this macros - * will convert/store multiple texels at once - * CONVERT_DIRECT - if defined, just memcpy texels from src to dest - * SRC_TEXEL_BYTES - bytes per source texel - * PRESERVE_DST_TYPE - if defined, don't undefined these macros at end */ @@ -55,9 +56,17 @@ convert->dstImageHeight * DST_TEXEL_BYTES) -/* ============================================================= - * PRE: No pixelstore attribs, width == dstImageWidth. +/***************************************************************/ +/** \name Doesn't require pixelstore attributes or stride + * + * \code width == dstImageWidth \endcode + * and + * \code height == dstImageHeight \endcode + * if applicable. */ +/*@{*/ + +/** \sa convert_func */ static GLboolean TAG(texsubimage2d)( const struct convert_info *convert ) { @@ -92,8 +101,7 @@ TAG(texsubimage2d)( const struct convert_info *convert ) return GL_TRUE; } -/* PRE: As above, height == dstImageHeight also. - */ +/** \sa convert_func */ static GLboolean TAG(texsubimage3d)( const struct convert_info *convert ) { @@ -128,11 +136,20 @@ TAG(texsubimage3d)( const struct convert_info *convert ) return GL_TRUE; } +/*@}*/ -/* ============================================================= - * PRE: No pixelstore attribs, width != dstImageWidth. +/***************************************************************/ +/** \name Requires stride but no pixelstore attributes + * + * \code width != dstImageWidth \endcode + * or + * \code height != dstImageHeight \endcode + * if applicable. */ +/*@{*/ + +/** \sa convert_func */ static GLboolean TAG(texsubimage2d_stride)( const struct convert_info *convert ) { @@ -164,8 +181,7 @@ TAG(texsubimage2d_stride)( const struct convert_info *convert ) return GL_TRUE; } -/* PRE: As above, or height != dstImageHeight also. - */ +/** \sa convert_func */ static GLboolean TAG(texsubimage3d_stride)( const struct convert_info *convert ) { @@ -201,11 +217,20 @@ TAG(texsubimage3d_stride)( const struct convert_info *convert ) return GL_TRUE; } +/*@}*/ -/* ============================================================= - * PRE: Require pixelstore attribs, width == dstImageWidth. +/***************************************************************/ +/** \name Requires pixelstore attributes but no stride. + * + * \code width == dstImageWidth \endcode + * and + * \code height == dstImageHeight \endcode + * if applicable. */ +/*@{*/ + +/** \sa convert_func */ static GLboolean TAG(texsubimage2d_unpack)( const struct convert_info *convert ) { @@ -262,8 +287,7 @@ TAG(texsubimage2d_unpack)( const struct convert_info *convert ) return GL_TRUE; } -/* PRE: as above, height == dstImageHeight also. - */ +/** \sa convert_func */ static GLboolean TAG(texsubimage3d_unpack)( const struct convert_info *convert ) { @@ -334,11 +358,20 @@ TAG(texsubimage3d_unpack)( const struct convert_info *convert ) return GL_TRUE; } +/*@}*/ -/* ============================================================= - * PRE: Require pixelstore attribs, width != dstImageWidth. +/***************************************************************/ +/** \name Requires pixelstore attributes and stride. + * + * \code width != dstImageWidth \endcode + * or + * \code height != dstImageHeight \endcode + * if applicable. */ +/*@{*/ + +/** \sa convert_func */ static GLboolean TAG(texsubimage2d_stride_unpack)( const struct convert_info *convert ) { @@ -385,8 +418,7 @@ TAG(texsubimage2d_stride_unpack)( const struct convert_info *convert ) return GL_TRUE; } -/* PRE: As above, or height != dstImageHeight also. - */ +/** \sa convert_func */ static GLboolean TAG(texsubimage3d_stride_unpack)( const struct convert_info *convert ) { @@ -442,8 +474,19 @@ TAG(texsubimage3d_stride_unpack)( const struct convert_info *convert ) return GL_TRUE; } +/*@}*/ + +/***********************************************************************/ +/** \name Conversion function tables + */ +/*@{*/ +/** + * 2D texture conversion functions table. + * + * \sa convert_func. + */ static convert_func TAG(texsubimage2d_tab)[] = { TAG(texsubimage2d), TAG(texsubimage2d_stride), @@ -451,6 +494,11 @@ static convert_func TAG(texsubimage2d_tab)[] = { TAG(texsubimage2d_stride_unpack), }; +/** + * 3D texture conversion functions table. + * + * \sa convert_func. + */ static convert_func TAG(texsubimage3d_tab)[] = { TAG(texsubimage3d), TAG(texsubimage3d_stride), @@ -458,6 +506,8 @@ static convert_func TAG(texsubimage3d_tab)[] = { TAG(texsubimage3d_stride_unpack), }; +/*@}*/ + #ifndef PRESERVE_DST_TYPE #undef DST_TYPE diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c index 0251e89ae85..07b341e68af 100644 --- a/src/mesa/main/varray.c +++ b/src/mesa/main/varray.c @@ -22,6 +22,7 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + #include "glheader.h" #include "context.h" #include "enable.h" @@ -36,7 +37,6 @@ #include "math/m_translate.h" - void _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr) { @@ -911,3 +911,71 @@ _mesa_MultiDrawElementsEXT( GLenum mode, const GLsizei *count, GLenum type, } } } + + +/**********************************************************************/ +/***** Initialization *****/ +/**********************************************************************/ + +void _mesa_init_varray( GLcontext * ctx ) +{ + int i; + + /* Vertex arrays */ + ctx->Array.Vertex.Size = 4; + ctx->Array.Vertex.Type = GL_FLOAT; + ctx->Array.Vertex.Stride = 0; + ctx->Array.Vertex.StrideB = 0; + ctx->Array.Vertex.Ptr = NULL; + ctx->Array.Vertex.Enabled = GL_FALSE; + ctx->Array.Vertex.Flags = CA_CLIENT_DATA; + ctx->Array.Normal.Type = GL_FLOAT; + ctx->Array.Normal.Stride = 0; + ctx->Array.Normal.StrideB = 0; + ctx->Array.Normal.Ptr = NULL; + ctx->Array.Normal.Enabled = GL_FALSE; + ctx->Array.Normal.Flags = CA_CLIENT_DATA; + ctx->Array.Color.Size = 4; + ctx->Array.Color.Type = GL_FLOAT; + ctx->Array.Color.Stride = 0; + ctx->Array.Color.StrideB = 0; + ctx->Array.Color.Ptr = NULL; + ctx->Array.Color.Enabled = GL_FALSE; + ctx->Array.Color.Flags = CA_CLIENT_DATA; + ctx->Array.SecondaryColor.Size = 4; + ctx->Array.SecondaryColor.Type = GL_FLOAT; + ctx->Array.SecondaryColor.Stride = 0; + ctx->Array.SecondaryColor.StrideB = 0; + ctx->Array.SecondaryColor.Ptr = NULL; + ctx->Array.SecondaryColor.Enabled = GL_FALSE; + ctx->Array.SecondaryColor.Flags = CA_CLIENT_DATA; + ctx->Array.FogCoord.Size = 1; + ctx->Array.FogCoord.Type = GL_FLOAT; + ctx->Array.FogCoord.Stride = 0; + ctx->Array.FogCoord.StrideB = 0; + ctx->Array.FogCoord.Ptr = NULL; + ctx->Array.FogCoord.Enabled = GL_FALSE; + ctx->Array.FogCoord.Flags = CA_CLIENT_DATA; + ctx->Array.Index.Type = GL_FLOAT; + ctx->Array.Index.Stride = 0; + ctx->Array.Index.StrideB = 0; + ctx->Array.Index.Ptr = NULL; + ctx->Array.Index.Enabled = GL_FALSE; + ctx->Array.Index.Flags = CA_CLIENT_DATA; + for (i = 0; i < MAX_TEXTURE_UNITS; i++) { + ctx->Array.TexCoord[i].Size = 4; + ctx->Array.TexCoord[i].Type = GL_FLOAT; + ctx->Array.TexCoord[i].Stride = 0; + ctx->Array.TexCoord[i].StrideB = 0; + ctx->Array.TexCoord[i].Ptr = NULL; + ctx->Array.TexCoord[i].Enabled = GL_FALSE; + ctx->Array.TexCoord[i].Flags = CA_CLIENT_DATA; + } + ctx->Array.TexCoordInterleaveFactor = 1; + ctx->Array.EdgeFlag.Stride = 0; + ctx->Array.EdgeFlag.StrideB = 0; + ctx->Array.EdgeFlag.Ptr = NULL; + ctx->Array.EdgeFlag.Enabled = GL_FALSE; + ctx->Array.EdgeFlag.Flags = CA_CLIENT_DATA; + ctx->Array.ActiveTexture = 0; /* GL_ARB_multitexture */ +} diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h index 168c17243a9..58d115c287e 100644 --- a/src/mesa/main/varray.h +++ b/src/mesa/main/varray.h @@ -1,3 +1,12 @@ +/** + * \file varray.h + * Vertex arrays. + * + * \if subset + * (No-op) + * + * \endif + */ /* * Mesa 3-D graphics library @@ -30,6 +39,7 @@ #include "mtypes.h" +#if _HAVE_FULL_GL extern void _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, @@ -124,5 +134,14 @@ extern void _mesa_MultiDrawElementsEXT( GLenum mode, const GLsizei *count, GLenum type, const GLvoid **indices, GLsizei primcount ); +extern void +_mesa_init_varray( GLcontext * ctx ); + +#else + +/** No-op */ +#define _mesa_init_varray( c ) ((void)0) + +#endif #endif diff --git a/src/mesa/main/vtxfmt.h b/src/mesa/main/vtxfmt.h index 6f6006bd229..310f157b5e5 100644 --- a/src/mesa/main/vtxfmt.h +++ b/src/mesa/main/vtxfmt.h @@ -1,3 +1,9 @@ +/** + * \file vtxfmt.h + * + * \author Keith Whitwell <[email protected]> + * \author Gareth Hughes + */ /* * Mesa 3-D graphics library @@ -21,12 +27,9 @@ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: - * Keith Whitwell <[email protected]> - * Gareth Hughes */ + #ifndef _VTXFMT_H_ #define _VTXFMT_H_ diff --git a/src/mesa/math/m_debug_xform.c b/src/mesa/math/m_debug_xform.c index ba2701e1798..e173d14bd5d 100644 --- a/src/mesa/math/m_debug_xform.c +++ b/src/mesa/math/m_debug_xform.c @@ -105,7 +105,7 @@ static int *templates[7] = { m_2d_no_rot, m_3d }; -static enum matrix_type mtypes[7] = { +static enum GLmatrixtype mtypes[7] = { MATRIX_GENERAL, MATRIX_IDENTITY, MATRIX_3D_NO_ROT, diff --git a/src/mesa/math/m_matrix.c b/src/mesa/math/m_matrix.c index e204cc7bbc6..e81be8a7e00 100644 --- a/src/mesa/math/m_matrix.c +++ b/src/mesa/math/m_matrix.c @@ -1,3 +1,12 @@ +/** + * \file m_matrix.c + * Matrix operations. + * + * \note + * -# 4x4 transformation matrices are stored in memory in column major order. + * -# Points/vertices are to be thought of as column vectors. + * -# Transformation of a point p by a matrix M is: p' = M * p + */ /* * Mesa 3-D graphics library @@ -24,15 +33,6 @@ */ -/* - * Matrix operations - * - * NOTES: - * 1. 4x4 transformation matrices are stored in memory in column major order. - * 2. Points/vertices are to be thought of as column vectors. - * 3. Transformation of a point p by a matrix M is: p' = M * p - */ - #include "glheader.h" #include "imports.h" #include "macros.h" @@ -41,6 +41,9 @@ #include "m_matrix.h" +/** + * Names of the corresponding GLmatrixtype values. + */ static const char *types[] = { "MATRIX_GENERAL", "MATRIX_IDENTITY", @@ -52,6 +55,9 @@ static const char *types[] = { }; +/** + * Identity matrix. + */ static GLfloat Identity[16] = { 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, @@ -61,22 +67,27 @@ static GLfloat Identity[16] = { +/**********************************************************************/ +/** \name Matrix multiplication */ +/*@{*/ -/* - * This matmul was contributed by Thomas Malik - * - * Perform a 4x4 matrix multiplication (product = a x b). - * Input: a, b - matrices to multiply - * Output: product - product of a and b - * WARNING: (product != b) assumed - * NOTE: (product == a) allowed - * - * KW: 4*16 = 64 muls - */ #define A(row,col) a[(col<<2)+row] #define B(row,col) b[(col<<2)+row] #define P(row,col) product[(col<<2)+row] +/** + * Perform a full 4x4 matrix multiplication. + * + * \param a matrix. + * \param b matrix. + * \param product will receive the product of \p a and \p b. + * + * \warning Is assumed that \p product != \p b. \p product == \p a is allowed. + * + * \note KW: 4*16 = 64 multiplications + * + * \author This \c matmul was contributed by Thomas Malik + */ static void matmul4( GLfloat *product, const GLfloat *a, const GLfloat *b ) { GLint i; @@ -89,9 +100,13 @@ static void matmul4( GLfloat *product, const GLfloat *a, const GLfloat *b ) } } - -/* Multiply two matrices known to occupy only the top three rows, such - * as typical model matrices, and ortho matrices. +/** + * Multiply two matrices known to occupy only the top three rows, such + * as typical model matrices, and orthogonal matrices. + * + * \param a matrix. + * \param b matrix. + * \param product will receive the product of \p a and \p b. */ static void matmul34( GLfloat *product, const GLfloat *a, const GLfloat *b ) { @@ -109,14 +124,20 @@ static void matmul34( GLfloat *product, const GLfloat *a, const GLfloat *b ) P(3,3) = 1; } - #undef A #undef B #undef P - -/* +/** * Multiply a matrix by an array of floats with known properties. + * + * \param mat pointer to a GLmatrix structure containing the left multiplication + * matrix, and that will receive the product result. + * \param m right multiplication matrix array. + * \param flags flags of the matrix \p m. + * + * Joins both flags and marks the type and inverse as dirty. Calls matmul34() + * if both matrices are 3D, or matmul4() otherwise. */ static void matrix_multf( GLmatrix *mat, const GLfloat *m, GLuint flags ) { @@ -128,7 +149,63 @@ static void matrix_multf( GLmatrix *mat, const GLfloat *m, GLuint flags ) matmul4( mat->m, mat->m, m ); } +/** + * Matrix multiplication. + * + * \param dest destination matrix. + * \param a left matrix. + * \param b right matrix. + * + * Joins both flags and marks the type and inverse as dirty. Calls matmul34() + * if both matrices are 3D, or matmul4() otherwise. + */ +void +_math_matrix_mul_matrix( GLmatrix *dest, const GLmatrix *a, const GLmatrix *b ) +{ + dest->flags = (a->flags | + b->flags | + MAT_DIRTY_TYPE | + MAT_DIRTY_INVERSE); + if (TEST_MAT_FLAGS(dest, MAT_FLAGS_3D)) + matmul34( dest->m, a->m, b->m ); + else + matmul4( dest->m, a->m, b->m ); +} + +/** + * Matrix multiplication. + * + * \param dest left and destination matrix. + * \param m right matrix array. + * + * Marks the matrix flags with general flag, and type and inverse dirty flags. + * Calls matmul4() for the multiplication. + */ +void +_math_matrix_mul_floats( GLmatrix *dest, const GLfloat *m ) +{ + dest->flags |= (MAT_FLAG_GENERAL | + MAT_DIRTY_TYPE | + MAT_DIRTY_INVERSE); + + matmul4( dest->m, dest->m, m ); +} + +/*@}*/ + + +/**********************************************************************/ +/** \name Matrix output */ +/*@{*/ + +/** + * Print a matrix array. + * + * \param m matrix array. + * + * Called by _math_matrix_print() to print a matrix or its inverse. + */ static void print_matrix_floats( const GLfloat m[16] ) { int i; @@ -137,6 +214,11 @@ static void print_matrix_floats( const GLfloat m[16] ) } } +/** + * Dumps the contents of a GLmatrix structure. + * + * \param m pointer to the GLmatrix structure. + */ void _math_matrix_print( const GLmatrix *m ) { @@ -155,16 +237,48 @@ _math_matrix_print( const GLmatrix *m ) } } +/*@}*/ + + +/** + * References an element of 4x4 matrix. + * + * \param m matrix array. + * \param c column of the desired element. + * \param r row of the desired element. + * + * \return value of the desired element. + * + * Calculate the linear storage index of the element and references it. + */ +#define MAT(m,r,c) (m)[(c)*4+(r)] +/**********************************************************************/ +/** \name Matrix inversion */ +/*@{*/ +/** + * Swaps the values of two floating pointer variables. + * + * Used by invert_matrix_general() to swap the row pointers. + */ #define SWAP_ROWS(a, b) { GLfloat *_tmp = a; (a)=(b); (b)=_tmp; } -#define MAT(m,r,c) (m)[(c)*4+(r)] -/* +/** * Compute inverse of 4x4 transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return GL_TRUE for success, GL_FALSE for failure (\p singular matrix). + * + * \author * Code contributed by Jacques Leroy [email protected] - * Return GL_TRUE for success, GL_FALSE for failure (singular matrix) + * + * Calculates the inverse matrix by performing the gaussian matrix reduction + * with partial pivoting followed by back/substitution with the loops manually + * unrolled. */ static GLboolean invert_matrix_general( GLmatrix *mat ) { @@ -279,8 +393,20 @@ static GLboolean invert_matrix_general( GLmatrix *mat ) } #undef SWAP_ROWS - -/* Adapted from graphics gems II. +/** + * Compute inverse of a general 3d transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return GL_TRUE for success, GL_FALSE for failure (\p singular matrix). + * + * \author Adapted from graphics gems II. + * + * Calculates the inverse of the upper left by first calculating its + * determinant and multiplying it to the symmetric adjust matrix of each + * element. Finally deals with the translation part by transforming the + * original translation vector using by the calculated submatrix inverse. */ static GLboolean invert_matrix_3d_general( GLmatrix *mat ) { @@ -341,7 +467,19 @@ static GLboolean invert_matrix_3d_general( GLmatrix *mat ) return GL_TRUE; } - +/** + * Compute inverse of a 3d transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return GL_TRUE for success, GL_FALSE for failure (\p singular matrix). + * + * If the matrix is not an angle preserving matrix then calls + * invert_matrix_3d_general for the actual calculation. Otherwise calculates + * the inverse matrix analyzing and inverting each of the scaling, rotation and + * translation parts. + */ static GLboolean invert_matrix_3d( GLmatrix *mat ) { const GLfloat *in = mat->m; @@ -412,15 +550,32 @@ static GLboolean invert_matrix_3d( GLmatrix *mat ) return GL_TRUE; } - - +/** + * Compute inverse of an identity transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return always GL_TRUE. + * + * Simply copies Identity into GLmatrix::inv. + */ static GLboolean invert_matrix_identity( GLmatrix *mat ) { MEMCPY( mat->inv, Identity, sizeof(Identity) ); return GL_TRUE; } - +/** + * Compute inverse of a no-rotation 3d transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return GL_TRUE for success, GL_FALSE for failure (\p singular matrix). + * + * Calculates the + */ static GLboolean invert_matrix_3d_no_rot( GLmatrix *mat ) { const GLfloat *in = mat->m; @@ -443,7 +598,17 @@ static GLboolean invert_matrix_3d_no_rot( GLmatrix *mat ) return GL_TRUE; } - +/** + * Compute inverse of a no-rotation 2d transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return GL_TRUE for success, GL_FALSE for failure (\p singular matrix). + * + * Calculates the inverse matrix by applying the inverse scaling and + * translation to the identity matrix. + */ static GLboolean invert_matrix_2d_no_rot( GLmatrix *mat ) { const GLfloat *in = mat->m; @@ -464,7 +629,6 @@ static GLboolean invert_matrix_2d_no_rot( GLmatrix *mat ) return GL_TRUE; } - #if 0 /* broken */ static GLboolean invert_matrix_perspective( GLmatrix *mat ) @@ -493,10 +657,14 @@ static GLboolean invert_matrix_perspective( GLmatrix *mat ) } #endif - +/** + * Matrix inversion function pointer type. + */ typedef GLboolean (*inv_mat_func)( GLmatrix *mat ); - +/** + * Table of the matrix inversion functions according to the matrix type. + */ static inv_mat_func inv_mat_tab[7] = { invert_matrix_general, invert_matrix_identity, @@ -514,7 +682,18 @@ static inv_mat_func inv_mat_tab[7] = { invert_matrix_3d }; - +/** + * Compute inverse of a transformation matrix. + * + * \param mat pointer to a GLmatrix structure. The matrix inverse will be + * stored in the GLmatrix::inv attribute. + * + * \return GL_TRUE for success, GL_FALSE for failure (\p singular matrix). + * + * Calls the matrix inversion function in inv_mat_tab corresponding to the + * given matrix type. In case of failure, updates the MAT_FLAG_SINGULAR flag, + * and copies the identity matrix into GLmatrix::inv. + */ static GLboolean matrix_invert( GLmatrix *mat ) { if (inv_mat_tab[mat->type](mat)) { @@ -527,16 +706,20 @@ static GLboolean matrix_invert( GLmatrix *mat ) } } +/*@}*/ +/**********************************************************************/ +/** \name Matrix generation */ +/*@{*/ - - -/* +/** * Generate a 4x4 transformation matrix from glRotate parameters, and - * postmultiply the input matrix by it. - * This function contributed by Erich Boleyn ([email protected]). - * Optimizatios contributed by Rudolf Opalla ([email protected]). + * post-multiply the input matrix by it. + * + * \author + * This function was contributed by Erich Boleyn ([email protected]). + * Optimizations contributed by Rudolf Opalla ([email protected]). */ void _math_matrix_rotate( GLmatrix *mat, @@ -708,8 +891,20 @@ _math_matrix_rotate( GLmatrix *mat, matrix_multf( mat, m, MAT_FLAG_ROTATION ); } - - +/** + * Apply a perspective projection matrix. + * + * \param mat matrix to apply the projection. + * \param left left clipping plane coordinate. + * \param right right clipping plane coordinate. + * \param bottom bottom clipping plane coordinate. + * \param top top clipping plane coordinate. + * \param nearval distance to the near clipping plane. + * \param farval distance to the far clipping plane. + * + * Creates the projection matrix and multiplies it with \p mat, marking the + * MAT_FLAG_PERSPECTIVE flag. + */ void _math_matrix_frustum( GLmatrix *mat, GLfloat left, GLfloat right, @@ -736,6 +931,20 @@ _math_matrix_frustum( GLmatrix *mat, matrix_multf( mat, m, MAT_FLAG_PERSPECTIVE ); } +/** + * Apply an orthographic projection matrix. + * + * \param mat matrix to apply the projection. + * \param left left clipping plane coordinate. + * \param right right clipping plane coordinate. + * \param bottom bottom clipping plane coordinate. + * \param top top clipping plane coordinate. + * \param nearval distance to the near clipping plane. + * \param farval distance to the far clipping plane. + * + * Creates the projection matrix and multiplies it with \p mat, marking the + * MAT_FLAG_GENERAL_SCALE and MAT_FLAG_TRANSLATION flags. + */ void _math_matrix_ortho( GLmatrix *mat, GLfloat left, GLfloat right, @@ -763,6 +972,91 @@ _math_matrix_ortho( GLmatrix *mat, matrix_multf( mat, m, (MAT_FLAG_GENERAL_SCALE|MAT_FLAG_TRANSLATION)); } +/** + * Multiply a matrix with a general scaling matrix. + * + * \param mat matrix. + * \param x x axis scale factor. + * \param y y axis scale factor. + * \param z z axis scale factor. + * + * Multiplies in-place the elements of \p mat by the scale factors. Checks if + * the scales factors are roughly the same, marking the MAT_FLAG_UNIFORM_SCALE + * flag, or MAT_FLAG_GENERAL_SCALE. Marks the MAT_DIRTY_TYPE and + * MAT_DIRTY_INVERSE dirty flags. + */ +void +_math_matrix_scale( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z ) +{ + GLfloat *m = mat->m; + m[0] *= x; m[4] *= y; m[8] *= z; + m[1] *= x; m[5] *= y; m[9] *= z; + m[2] *= x; m[6] *= y; m[10] *= z; + m[3] *= x; m[7] *= y; m[11] *= z; + + if (fabs(x - y) < 1e-8 && fabs(x - z) < 1e-8) + mat->flags |= MAT_FLAG_UNIFORM_SCALE; + else + mat->flags |= MAT_FLAG_GENERAL_SCALE; + + mat->flags |= (MAT_DIRTY_TYPE | + MAT_DIRTY_INVERSE); +} + +/** + * Multiply a matrix with a translation matrix. + * + * \param mat matrix. + * \param x translation vector x coordinate. + * \param y translation vector y coordinate. + * \param z translation vector z coordinate. + * + * Adds the translation coordinates to the elements of \p mat in-place. Marks + * the MAT_FLAG_TRANSLATION flag, and the MAT_DIRTY_TYPE and MAT_DIRTY_INVERSE + * dirty flags. + */ +void +_math_matrix_translate( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z ) +{ + GLfloat *m = mat->m; + m[12] = m[0] * x + m[4] * y + m[8] * z + m[12]; + m[13] = m[1] * x + m[5] * y + m[9] * z + m[13]; + m[14] = m[2] * x + m[6] * y + m[10] * z + m[14]; + m[15] = m[3] * x + m[7] * y + m[11] * z + m[15]; + + mat->flags |= (MAT_FLAG_TRANSLATION | + MAT_DIRTY_TYPE | + MAT_DIRTY_INVERSE); +} + +/** + * Set a matrix to the identity matrix. + * + * \param mat matrix. + * + * Copies ::Identity into \p GLmatrix::m, and into GLmatrix::inv if not NULL. + * Sets the matrix type to identity, and clear the dirty flags. + */ +void +_math_matrix_set_identity( GLmatrix *mat ) +{ + MEMCPY( mat->m, Identity, 16*sizeof(GLfloat) ); + + if (mat->inv) + MEMCPY( mat->inv, Identity, 16*sizeof(GLfloat) ); + + mat->type = MATRIX_IDENTITY; + mat->flags &= ~(MAT_DIRTY_FLAGS| + MAT_DIRTY_TYPE| + MAT_DIRTY_INVERSE); +} + +/*@}*/ + + +/**********************************************************************/ +/** \name Matrix analysis */ +/*@{*/ #define ZERO(x) (1<<x) #define ONE(x) (1<<(x+16)) @@ -804,8 +1098,12 @@ _math_matrix_ortho( GLmatrix *mat, #define SQ(x) ((x)*(x)) -/* Determine type and flags from scratch. This is expensive enough to - * only want to do it once. +/** + * Determine type and flags from scratch. + * + * \param mat matrix. + * + * This is expensive enough to only want to do it once. */ static void analyse_from_scratch( GLmatrix *mat ) { @@ -915,9 +1213,10 @@ static void analyse_from_scratch( GLmatrix *mat ) } } - -/* Analyse a matrix given that its flags are accurate - this is the - * more common operation, hopefully. +/** + * Analyze a matrix given that its flags are accurate. + * + * This is the more common operation, hopefully. */ static void analyse_from_flags( GLmatrix *mat ) { @@ -957,7 +1256,16 @@ static void analyse_from_flags( GLmatrix *mat ) } } - +/** + * Analyze and update a matrix. + * + * \param mat matrix. + * + * If the matrix type is dirty then calls either analyse_from_scratch() or + * analyse_from_flags() to determine its type, according to whether the flags + * are dirty or not, respectively. If the matrix has an inverse and it's dirty + * then calls matrix_invert(). Finally clears the dirty flags. + */ void _math_matrix_analyse( GLmatrix *mat ) { @@ -977,7 +1285,21 @@ _math_matrix_analyse( GLmatrix *mat ) MAT_DIRTY_INVERSE); } +/*@}*/ + +/**********************************************************************/ +/** \name Matrix setup */ +/*@{*/ + +/** + * Copy a matrix. + * + * \param to destination matrix. + * \param from source matrix. + * + * Copies all fields in GLmatrix, creating an inverse array if necessary. + */ void _math_matrix_copy( GLmatrix *to, const GLmatrix *from ) { @@ -995,41 +1317,15 @@ _math_matrix_copy( GLmatrix *to, const GLmatrix *from ) } } - -void -_math_matrix_scale( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z ) -{ - GLfloat *m = mat->m; - m[0] *= x; m[4] *= y; m[8] *= z; - m[1] *= x; m[5] *= y; m[9] *= z; - m[2] *= x; m[6] *= y; m[10] *= z; - m[3] *= x; m[7] *= y; m[11] *= z; - - if (fabs(x - y) < 1e-8 && fabs(x - z) < 1e-8) - mat->flags |= MAT_FLAG_UNIFORM_SCALE; - else - mat->flags |= MAT_FLAG_GENERAL_SCALE; - - mat->flags |= (MAT_DIRTY_TYPE | - MAT_DIRTY_INVERSE); -} - - -void -_math_matrix_translate( GLmatrix *mat, GLfloat x, GLfloat y, GLfloat z ) -{ - GLfloat *m = mat->m; - m[12] = m[0] * x + m[4] * y + m[8] * z + m[12]; - m[13] = m[1] * x + m[5] * y + m[9] * z + m[13]; - m[14] = m[2] * x + m[6] * y + m[10] * z + m[14]; - m[15] = m[3] * x + m[7] * y + m[11] * z + m[15]; - - mat->flags |= (MAT_FLAG_TRANSLATION | - MAT_DIRTY_TYPE | - MAT_DIRTY_INVERSE); -} - - +/** + * Loads a matrix array into GLmatrix. + * + * \param m matrix array. + * \param mat matrix. + * + * Copies \p m into GLmatrix::m and marks the MAT_FLAG_GENERAL and MAT_DIRTY + * flags. + */ void _math_matrix_loadf( GLmatrix *mat, const GLfloat *m ) { @@ -1037,6 +1333,13 @@ _math_matrix_loadf( GLmatrix *mat, const GLfloat *m ) mat->flags = (MAT_FLAG_GENERAL | MAT_DIRTY); } +/** + * Matrix constructor. + * + * \param m matrix. + * + * Initialize the GLmatrix fields. + */ void _math_matrix_ctr( GLmatrix *m ) { @@ -1048,6 +1351,13 @@ _math_matrix_ctr( GLmatrix *m ) m->flags = 0; } +/** + * Matrix destructor. + * + * \param m matrix. + * + * Frees the data in a GLmatrix. + */ void _math_matrix_dtr( GLmatrix *m ) { @@ -1061,7 +1371,13 @@ _math_matrix_dtr( GLmatrix *m ) } } - +/** + * Allocate a matrix inverse. + * + * \param m matrix. + * + * Allocates the matrix inverse, GLmatrix::inv, and sets it to Identity. + */ void _math_matrix_alloc_inv( GLmatrix *m ) { @@ -1072,48 +1388,19 @@ _math_matrix_alloc_inv( GLmatrix *m ) } } - -void -_math_matrix_mul_matrix( GLmatrix *dest, const GLmatrix *a, const GLmatrix *b ) -{ - dest->flags = (a->flags | - b->flags | - MAT_DIRTY_TYPE | - MAT_DIRTY_INVERSE); - - if (TEST_MAT_FLAGS(dest, MAT_FLAGS_3D)) - matmul34( dest->m, a->m, b->m ); - else - matmul4( dest->m, a->m, b->m ); -} - - -void -_math_matrix_mul_floats( GLmatrix *dest, const GLfloat *m ) -{ - dest->flags |= (MAT_FLAG_GENERAL | - MAT_DIRTY_TYPE | - MAT_DIRTY_INVERSE); - - matmul4( dest->m, dest->m, m ); -} - -void -_math_matrix_set_identity( GLmatrix *mat ) -{ - MEMCPY( mat->m, Identity, 16*sizeof(GLfloat) ); - - if (mat->inv) - MEMCPY( mat->inv, Identity, 16*sizeof(GLfloat) ); - - mat->type = MATRIX_IDENTITY; - mat->flags &= ~(MAT_DIRTY_FLAGS| - MAT_DIRTY_TYPE| - MAT_DIRTY_INVERSE); -} +/*@}*/ +/**********************************************************************/ +/** \name Matrix transpose */ +/*@{*/ +/** + * Transpose a GLfloat matrix. + * + * \param to destination array. + * \param from source array. + */ void _math_transposef( GLfloat to[16], const GLfloat from[16] ) { @@ -1135,7 +1422,12 @@ _math_transposef( GLfloat to[16], const GLfloat from[16] ) to[15] = from[15]; } - +/** + * Transpose a GLdouble matrix. + * + * \param to destination array. + * \param from source array. + */ void _math_transposed( GLdouble to[16], const GLdouble from[16] ) { @@ -1157,6 +1449,12 @@ _math_transposed( GLdouble to[16], const GLdouble from[16] ) to[15] = from[15]; } +/** + * Transpose a GLdouble matrix and convert to GLfloat. + * + * \param to destination array. + * \param from source array. + */ void _math_transposefd( GLfloat to[16], const GLdouble from[16] ) { @@ -1177,3 +1475,6 @@ _math_transposefd( GLfloat to[16], const GLdouble from[16] ) to[14] = (GLfloat) from[11]; to[15] = (GLfloat) from[15]; } + +/*@}*/ + diff --git a/src/mesa/math/m_matrix.h b/src/mesa/math/m_matrix.h index 00bfcf8d166..96f5649ee88 100644 --- a/src/mesa/math/m_matrix.h +++ b/src/mesa/math/m_matrix.h @@ -1,3 +1,7 @@ +/** + * \file math/m_matrix.h + * Defines basic structures for matrix-handling. + */ /* * Mesa 3-D graphics library @@ -23,27 +27,25 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/** - * \file math/m_matrix.h - * \brief Defines basic structures for matrix-handling. - */ - #ifndef _M_MATRIX_H #define _M_MATRIX_H -/* Give symbolic names to some of the entries in the matrix to help - * out with the rework of the viewport_map as a matrix transform. +/** + * \name Symbolic names to some of the entries in the matrix + * + * To help out with the rework of the viewport_map as a matrix transform. */ +/*@{*/ #define MAT_SX 0 #define MAT_SY 5 #define MAT_SZ 10 #define MAT_TX 12 #define MAT_TY 13 #define MAT_TZ 14 - +/*@}*/ /** * \defgroup MatFlags MAT_FLAG_XXX-flags @@ -52,34 +54,40 @@ * GLmatrix::flags */ /*@{*/ -#define MAT_FLAG_IDENTITY 0 -#define MAT_FLAG_GENERAL 0x1 -#define MAT_FLAG_ROTATION 0x2 -#define MAT_FLAG_TRANSLATION 0x4 -#define MAT_FLAG_UNIFORM_SCALE 0x8 -#define MAT_FLAG_GENERAL_SCALE 0x10 -#define MAT_FLAG_GENERAL_3D 0x20 -#define MAT_FLAG_PERSPECTIVE 0x40 -#define MAT_FLAG_SINGULAR 0x80 -#define MAT_DIRTY_TYPE 0x100 -#define MAT_DIRTY_FLAGS 0x200 -#define MAT_DIRTY_INVERSE 0x400 -/*@}*/ - +#define MAT_FLAG_IDENTITY 0 /**< is an identity matrix flag. + * (Not actually used - the identity + * matrix is identified by the absense + / of all other flags.) */ +#define MAT_FLAG_GENERAL 0x1 /**< is a general matrix flag */ +#define MAT_FLAG_ROTATION 0x2 /**< is a rotation matrix flag */ +#define MAT_FLAG_TRANSLATION 0x4 /**< is a translation matrix flag */ +#define MAT_FLAG_UNIFORM_SCALE 0x8 /**< is an uniform scaling matrix flag */ +#define MAT_FLAG_GENERAL_SCALE 0x10 /**< is a general scaling matrix flag */ +#define MAT_FLAG_GENERAL_3D 0x20 /**< general 3D matrix flag */ +#define MAT_FLAG_PERSPECTIVE 0x40 /**< is a perspective projection matrix flag */ +#define MAT_FLAG_SINGULAR 0x80 /**< is a singular matrix flag */ +#define MAT_DIRTY_TYPE 0x100 /**< matrix type is dirty */ +#define MAT_DIRTY_FLAGS 0x200 /**< matrix flags are dirty */ +#define MAT_DIRTY_INVERSE 0x400 /**< matrix inverse is dirty */ + +/** angle preserving matrix flags mask */ #define MAT_FLAGS_ANGLE_PRESERVING (MAT_FLAG_ROTATION | \ MAT_FLAG_TRANSLATION | \ MAT_FLAG_UNIFORM_SCALE) +/** length preserving matrix flags mask */ #define MAT_FLAGS_LENGTH_PRESERVING (MAT_FLAG_ROTATION | \ MAT_FLAG_TRANSLATION) +/** 3D (non-perspective) matrix flags mask */ #define MAT_FLAGS_3D (MAT_FLAG_ROTATION | \ MAT_FLAG_TRANSLATION | \ MAT_FLAG_UNIFORM_SCALE | \ MAT_FLAG_GENERAL_SCALE | \ MAT_FLAG_GENERAL_3D) +/** geometry related matrix flags mask */ #define MAT_FLAGS_GEOMETRY (MAT_FLAG_GENERAL | \ MAT_FLAG_ROTATION | \ MAT_FLAG_TRANSLATION | \ @@ -89,31 +97,49 @@ MAT_FLAG_PERSPECTIVE | \ MAT_FLAG_SINGULAR) +/** dirty matrix flags mask */ #define MAT_DIRTY (MAT_DIRTY_TYPE | \ MAT_DIRTY_FLAGS | \ MAT_DIRTY_INVERSE) +/*@}*/ + + +/** + * Test geometry related matrix flags. + * + * \param mat a pointer to a GLmatrix structure. + * \param a flags mask. + * + * \returns non-zero if all geometry related matrix flags are contained within + * the mask, or zero otherwise. + */ #define TEST_MAT_FLAGS(mat, a) \ ((MAT_FLAGS_GEOMETRY & (~(a)) & ((mat)->flags) ) == 0) -enum matrix_type { - MATRIX_GENERAL, /**< general 4x4 matrix */ - MATRIX_IDENTITY, /**< identity matrix */ - MATRIX_3D_NO_ROT, /**< ortho projection and others... */ - MATRIX_PERSPECTIVE,/**< perspective projection matrix */ - MATRIX_2D, /**< 2-D transformation */ - MATRIX_2D_NO_ROT, /**< 2-D scale & translate only */ - MATRIX_3D /**< 3-D transformation */ -}; +/** + * Different kinds of 4x4 transformation matrices. + */ +enum GLmatrixtype { + MATRIX_GENERAL, /**< general 4x4 matrix */ + MATRIX_IDENTITY, /**< identity matrix */ + MATRIX_3D_NO_ROT, /**< orthogonal projection and others... */ + MATRIX_PERSPECTIVE, /**< perspective projection matrix */ + MATRIX_2D, /**< 2-D transformation */ + MATRIX_2D_NO_ROT, /**< 2-D scale & translate only */ + MATRIX_3D /**< 3-D transformation */ +} ; +/** + * Matrix. + */ typedef struct { - GLfloat *m; /* 16-byte aligned */ - GLfloat *inv; /* optional, 16-byte aligned */ + GLfloat *m; /**< matrix, 16-byte aligned */ + GLfloat *inv; /**< optional inverse, 16-byte aligned */ GLuint flags; /**< possible values determined by (of \link MatFlags MAT_FLAG_* flags\endlink) */ - - enum matrix_type type; + enum GLmatrixtype type; } GLmatrix; @@ -173,9 +199,11 @@ _math_matrix_print( const GLmatrix *m ); - -/* Related functions that don't actually operate on GLmatrix structs: +/** + * \name Related functions that don't actually operate on GLmatrix structs */ +/*@{*/ + extern void _math_transposef( GLfloat to[16], const GLfloat from[16] ); @@ -186,6 +214,35 @@ extern void _math_transposefd( GLfloat to[16], const GLdouble from[16] ); +/* + * Transform a point (column vector) by a matrix: Q = M * P + */ +#define TRANSFORM_POINT( Q, M, P ) \ + Q[0] = M[0] * P[0] + M[4] * P[1] + M[8] * P[2] + M[12] * P[3]; \ + Q[1] = M[1] * P[0] + M[5] * P[1] + M[9] * P[2] + M[13] * P[3]; \ + Q[2] = M[2] * P[0] + M[6] * P[1] + M[10] * P[2] + M[14] * P[3]; \ + Q[3] = M[3] * P[0] + M[7] * P[1] + M[11] * P[2] + M[15] * P[3]; + + +#define TRANSFORM_POINT3( Q, M, P ) \ + Q[0] = M[0] * P[0] + M[4] * P[1] + M[8] * P[2] + M[12]; \ + Q[1] = M[1] * P[0] + M[5] * P[1] + M[9] * P[2] + M[13]; \ + Q[2] = M[2] * P[0] + M[6] * P[1] + M[10] * P[2] + M[14]; \ + Q[3] = M[3] * P[0] + M[7] * P[1] + M[11] * P[2] + M[15]; + + +/* + * Transform a normal (row vector) by a matrix: [NX NY NZ] = N * MAT + */ +#define TRANSFORM_NORMAL( TO, N, MAT ) \ +do { \ + TO[0] = N[0] * MAT[0] + N[1] * MAT[1] + N[2] * MAT[2]; \ + TO[1] = N[0] * MAT[4] + N[1] * MAT[5] + N[2] * MAT[6]; \ + TO[2] = N[0] * MAT[8] + N[1] * MAT[9] + N[2] * MAT[10]; \ +} while (0) + + +/*@}*/ #endif diff --git a/src/mesa/math/mathmod.h b/src/mesa/math/mathmod.h index 35f6671f2d1..6fbaaea94bc 100644 --- a/src/mesa/math/mathmod.h +++ b/src/mesa/math/mathmod.h @@ -23,6 +23,16 @@ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +/** + * \mainpage Mesa Math Module + * + * This module contains math-related utility functions for transforming + * vertices, translating arrays of numbers from one data type to another, + * evaluating curved surfaces, etc. + */ + + #ifndef _MESA_MATH_H_ #define _MESA_MATH_H_ diff --git a/src/mesa/tnl/t_imm_exec.c b/src/mesa/tnl/t_imm_exec.c index 0fec5d4cd44..c71c2da1a0e 100644 --- a/src/mesa/tnl/t_imm_exec.c +++ b/src/mesa/tnl/t_imm_exec.c @@ -254,7 +254,7 @@ static void _tnl_vb_bind_immediate( GLcontext *ctx, struct immediate *IM ) /* _tnl_print_vert_flags("copy-orflag", IM->CopyOrFlag); */ /* _tnl_print_vert_flags("orflag", IM->OrFlag); */ -/* _tnl_print_vert_flags("inputs", inputs); */ +/* _tnl_print_vert_flags("inputs", inputs); */ /* Setup the initial values of array pointers in the vb. */ diff --git a/src/mesa/tnl/t_vb_lighttmp.h b/src/mesa/tnl/t_vb_lighttmp.h index c0ef45ccef9..5ddac76862a 100644 --- a/src/mesa/tnl/t_vb_lighttmp.h +++ b/src/mesa/tnl/t_vb_lighttmp.h @@ -80,7 +80,7 @@ /* define TRACE if to trace lighting code */ - +/* #define TRACE 1 */ /* * ctx is the current context diff --git a/src/mesa/tnl/t_vb_normals.c b/src/mesa/tnl/t_vb_normals.c index 4cf4bb65c78..22c97291435 100644 --- a/src/mesa/tnl/t_vb_normals.c +++ b/src/mesa/tnl/t_vb_normals.c @@ -87,7 +87,6 @@ static GLboolean run_validate_normal_stage( GLcontext *ctx, { struct normal_stage_data *store = NORMAL_STAGE_DATA(stage); - ASSERT(ctx->_NeedNormals); if (ctx->_NeedEyeCoords) { GLuint transform = NORM_TRANSFORM_NO_ROT; @@ -136,7 +135,9 @@ static GLboolean run_validate_normal_stage( GLcontext *ctx, static void check_normal_transform( GLcontext *ctx, struct gl_pipeline_stage *stage ) { - stage->active = ctx->_NeedNormals && !ctx->VertexProgram.Enabled; + stage->active = !ctx->VertexProgram.Enabled && + (ctx->Light.Enabled || (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS)); + /* Don't clobber the initialize function: */ if (stage->privatePtr) |