diff options
Diffstat (limited to 'src/mesa/main/context.c')
| -rw-r--r-- | src/mesa/main/context.c | 1661 |
1 files changed, 497 insertions, 1164 deletions
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" -}; +/*@}*/ |