diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915tex/i915_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915tex/i915_state.c | 1014 |
1 files changed, 0 insertions, 1014 deletions
diff --git a/src/mesa/drivers/dri/i915tex/i915_state.c b/src/mesa/drivers/dri/i915tex/i915_state.c deleted file mode 100644 index e5d8d279936..00000000000 --- a/src/mesa/drivers/dri/i915tex/i915_state.c +++ /dev/null @@ -1,1014 +0,0 @@ -/************************************************************************** - * - * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. - * - **************************************************************************/ - - -#include "glheader.h" -#include "context.h" -#include "macros.h" -#include "enums.h" -#include "dd.h" -#include "tnl/tnl.h" -#include "tnl/t_context.h" - -#include "texmem.h" - -#include "drivers/common/driverfuncs.h" - -#include "intel_fbo.h" -#include "intel_screen.h" -#include "intel_batchbuffer.h" - -#include "i915_context.h" -#include "i915_reg.h" - -#define FILE_DEBUG_FLAG DEBUG_STATE - -static void -i915StencilFuncSeparate(GLcontext * ctx, GLenum face, GLenum func, GLint ref, - GLuint mask) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int test = intel_translate_compare_func(func); - - mask = mask & 0xff; - - DBG("%s : func: %s, ref : 0x%x, mask: 0x%x\n", __FUNCTION__, - _mesa_lookup_enum_by_nr(func), ref, mask); - - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_TEST_MASK; - i915->state.Ctx[I915_CTXREG_STATE4] |= (ENABLE_STENCIL_TEST_MASK | - STENCIL_TEST_MASK(mask)); - - i915->state.Ctx[I915_CTXREG_LIS5] &= ~(S5_STENCIL_REF_MASK | - S5_STENCIL_TEST_FUNC_MASK); - - i915->state.Ctx[I915_CTXREG_LIS5] |= ((ref << S5_STENCIL_REF_SHIFT) | - (test << - S5_STENCIL_TEST_FUNC_SHIFT)); -} - -static void -i915StencilMaskSeparate(GLcontext * ctx, GLenum face, GLuint mask) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - - DBG("%s : mask 0x%x\n", __FUNCTION__, mask); - - mask = mask & 0xff; - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_WRITE_MASK; - i915->state.Ctx[I915_CTXREG_STATE4] |= (ENABLE_STENCIL_WRITE_MASK | - STENCIL_WRITE_MASK(mask)); -} - - -static void -i915StencilOpSeparate(GLcontext * ctx, GLenum face, GLenum fail, GLenum zfail, - GLenum zpass) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int fop = intel_translate_stencil_op(fail); - int dfop = intel_translate_stencil_op(zfail); - int dpop = intel_translate_stencil_op(zpass); - - - DBG("%s: fail : %s, zfail: %s, zpass : %s\n", __FUNCTION__, - _mesa_lookup_enum_by_nr(fail), - _mesa_lookup_enum_by_nr(zfail), _mesa_lookup_enum_by_nr(zpass)); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - - i915->state.Ctx[I915_CTXREG_LIS5] &= ~(S5_STENCIL_FAIL_MASK | - S5_STENCIL_PASS_Z_FAIL_MASK | - S5_STENCIL_PASS_Z_PASS_MASK); - - i915->state.Ctx[I915_CTXREG_LIS5] |= ((fop << S5_STENCIL_FAIL_SHIFT) | - (dfop << - S5_STENCIL_PASS_Z_FAIL_SHIFT) | - (dpop << - S5_STENCIL_PASS_Z_PASS_SHIFT)); -} - -static void -i915AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int test = intel_translate_compare_func(func); - GLubyte refByte; - - UNCLAMPED_FLOAT_TO_UBYTE(refByte, ref); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_LIS6] &= ~(S6_ALPHA_TEST_FUNC_MASK | - S6_ALPHA_REF_MASK); - i915->state.Ctx[I915_CTXREG_LIS6] |= ((test << S6_ALPHA_TEST_FUNC_SHIFT) | - (((GLuint) refByte) << - S6_ALPHA_REF_SHIFT)); -} - -/* This function makes sure that the proper enables are - * set for LogicOp, Independant Alpha Blend, and Blending. - * It needs to be called from numerous places where we - * could change the LogicOp or Independant Alpha Blend without subsequent - * calls to glEnable. - */ -static void -i915EvalLogicOpBlendState(GLcontext * ctx) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - - if (RGBA_LOGICOP_ENABLED(ctx)) { - i915->state.Ctx[I915_CTXREG_LIS5] |= S5_LOGICOP_ENABLE; - i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_CBUF_BLEND_ENABLE; - } - else { - i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_LOGICOP_ENABLE; - - if (ctx->Color.BlendEnabled) { - i915->state.Ctx[I915_CTXREG_LIS6] |= S6_CBUF_BLEND_ENABLE; - } - else { - i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_CBUF_BLEND_ENABLE; - } - } -} - -static void -i915BlendColor(GLcontext * ctx, const GLfloat color[4]) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - GLubyte r, g, b, a; - - DBG("%s\n", __FUNCTION__); - - UNCLAMPED_FLOAT_TO_UBYTE(r, color[RCOMP]); - UNCLAMPED_FLOAT_TO_UBYTE(g, color[GCOMP]); - UNCLAMPED_FLOAT_TO_UBYTE(b, color[BCOMP]); - UNCLAMPED_FLOAT_TO_UBYTE(a, color[ACOMP]); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_BLENDCOLOR1] = - (a << 24) | (r << 16) | (g << 8) | b; -} - - -#define DST_BLND_FACT(f) ((f)<<S6_CBUF_DST_BLEND_FACT_SHIFT) -#define SRC_BLND_FACT(f) ((f)<<S6_CBUF_SRC_BLEND_FACT_SHIFT) -#define DST_ABLND_FACT(f) ((f)<<IAB_DST_FACTOR_SHIFT) -#define SRC_ABLND_FACT(f) ((f)<<IAB_SRC_FACTOR_SHIFT) - - - -static GLuint -translate_blend_equation(GLenum mode) -{ - switch (mode) { - case GL_FUNC_ADD: - return BLENDFUNC_ADD; - case GL_MIN: - return BLENDFUNC_MIN; - case GL_MAX: - return BLENDFUNC_MAX; - case GL_FUNC_SUBTRACT: - return BLENDFUNC_SUBTRACT; - case GL_FUNC_REVERSE_SUBTRACT: - return BLENDFUNC_REVERSE_SUBTRACT; - default: - return 0; - } -} - -static void -i915UpdateBlendState(GLcontext * ctx) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - GLuint iab = (i915->state.Ctx[I915_CTXREG_IAB] & - ~(IAB_SRC_FACTOR_MASK | - IAB_DST_FACTOR_MASK | - (BLENDFUNC_MASK << IAB_FUNC_SHIFT) | IAB_ENABLE)); - - GLuint lis6 = (i915->state.Ctx[I915_CTXREG_LIS6] & - ~(S6_CBUF_SRC_BLEND_FACT_MASK | - S6_CBUF_DST_BLEND_FACT_MASK | S6_CBUF_BLEND_FUNC_MASK)); - - GLuint eqRGB = ctx->Color.BlendEquationRGB; - GLuint eqA = ctx->Color.BlendEquationA; - GLuint srcRGB = ctx->Color.BlendSrcRGB; - GLuint dstRGB = ctx->Color.BlendDstRGB; - GLuint srcA = ctx->Color.BlendSrcA; - GLuint dstA = ctx->Color.BlendDstA; - - if (eqRGB == GL_MIN || eqRGB == GL_MAX) { - srcRGB = dstRGB = GL_ONE; - } - - if (eqA == GL_MIN || eqA == GL_MAX) { - srcA = dstA = GL_ONE; - } - - lis6 |= SRC_BLND_FACT(intel_translate_blend_factor(srcRGB)); - lis6 |= DST_BLND_FACT(intel_translate_blend_factor(dstRGB)); - lis6 |= translate_blend_equation(eqRGB) << S6_CBUF_BLEND_FUNC_SHIFT; - - iab |= SRC_ABLND_FACT(intel_translate_blend_factor(srcA)); - iab |= DST_ABLND_FACT(intel_translate_blend_factor(dstA)); - iab |= translate_blend_equation(eqA) << IAB_FUNC_SHIFT; - - if (srcA != srcRGB || dstA != dstRGB || eqA != eqRGB) - iab |= IAB_ENABLE; - - if (iab != i915->state.Ctx[I915_CTXREG_IAB] || - lis6 != i915->state.Ctx[I915_CTXREG_LIS6]) { - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_IAB] = iab; - i915->state.Ctx[I915_CTXREG_LIS6] = lis6; - } - - /* This will catch a logicop blend equation */ - i915EvalLogicOpBlendState(ctx); -} - - -static void -i915BlendFuncSeparate(GLcontext * ctx, GLenum srcRGB, - GLenum dstRGB, GLenum srcA, GLenum dstA) -{ - i915UpdateBlendState(ctx); -} - - -static void -i915BlendEquationSeparate(GLcontext * ctx, GLenum eqRGB, GLenum eqA) -{ - i915UpdateBlendState(ctx); -} - - -static void -i915DepthFunc(GLcontext * ctx, GLenum func) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int test = intel_translate_compare_func(func); - - DBG("%s\n", __FUNCTION__); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_DEPTH_TEST_FUNC_MASK; - i915->state.Ctx[I915_CTXREG_LIS6] |= test << S6_DEPTH_TEST_FUNC_SHIFT; -} - -static void -i915DepthMask(GLcontext * ctx, GLboolean flag) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - - DBG("%s flag (%d)\n", __FUNCTION__, flag); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - - if (flag && ctx->Depth.Test) - i915->state.Ctx[I915_CTXREG_LIS6] |= S6_DEPTH_WRITE_ENABLE; - else - i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_DEPTH_WRITE_ENABLE; -} - -/* ============================================================= - * Polygon stipple - * - * The i915 supports a 4x4 stipple natively, GL wants 32x32. - * Fortunately stipple is usually a repeating pattern. - */ -static void -i915PolygonStipple(GLcontext * ctx, const GLubyte * mask) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - const GLubyte *m = mask; - GLubyte p[4]; - int i, j, k; - int active = (ctx->Polygon.StippleFlag && - i915->intel.reduced_primitive == GL_TRIANGLES); - GLuint newMask; - - if (active) { - I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE); - i915->state.Stipple[I915_STPREG_ST1] &= ~ST1_ENABLE; - } - - p[0] = mask[12] & 0xf; - p[0] |= p[0] << 4; - p[1] = mask[8] & 0xf; - p[1] |= p[1] << 4; - p[2] = mask[4] & 0xf; - p[2] |= p[2] << 4; - p[3] = mask[0] & 0xf; - p[3] |= p[3] << 4; - - for (k = 0; k < 8; k++) - for (j = 3; j >= 0; j--) - for (i = 0; i < 4; i++, m++) - if (*m != p[j]) { - i915->intel.hw_stipple = 0; - return; - } - - newMask = (((p[0] & 0xf) << 0) | - ((p[1] & 0xf) << 4) | - ((p[2] & 0xf) << 8) | ((p[3] & 0xf) << 12)); - - - if (newMask == 0xffff || newMask == 0x0) { - /* this is needed to make conform pass */ - i915->intel.hw_stipple = 0; - return; - } - - i915->state.Stipple[I915_STPREG_ST1] &= ~0xffff; - i915->state.Stipple[I915_STPREG_ST1] |= newMask; - i915->intel.hw_stipple = 1; - - if (active) - i915->state.Stipple[I915_STPREG_ST1] |= ST1_ENABLE; -} - - -/* ============================================================= - * Hardware clipping - */ -static void -i915Scissor(GLcontext * ctx, GLint x, GLint y, GLsizei w, GLsizei h) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int x1, y1, x2, y2; - - if (!ctx->DrawBuffer) - return; - - DBG("%s %d,%d %dx%d\n", __FUNCTION__, x, y, w, h); - - if (ctx->DrawBuffer->Name == 0) { - x1 = x; - y1 = ctx->DrawBuffer->Height - (y + h); - x2 = x + w - 1; - y2 = y1 + h - 1; - DBG("%s %d..%d,%d..%d (inverted)\n", __FUNCTION__, x1, x2, y1, y2); - } - else { - /* FBO - not inverted - */ - x1 = x; - y1 = y; - x2 = x + w - 1; - y2 = y + h - 1; - DBG("%s %d..%d,%d..%d (not inverted)\n", __FUNCTION__, x1, x2, y1, y2); - } - - x1 = CLAMP(x1, 0, ctx->DrawBuffer->Width - 1); - y1 = CLAMP(y1, 0, ctx->DrawBuffer->Height - 1); - x2 = CLAMP(x2, 0, ctx->DrawBuffer->Width - 1); - y2 = CLAMP(y2, 0, ctx->DrawBuffer->Height - 1); - - DBG("%s %d..%d,%d..%d (clamped)\n", __FUNCTION__, x1, x2, y1, y2); - - I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS); - i915->state.Buffer[I915_DESTREG_SR1] = (y1 << 16) | (x1 & 0xffff); - i915->state.Buffer[I915_DESTREG_SR2] = (y2 << 16) | (x2 & 0xffff); -} - -static void -i915LogicOp(GLcontext * ctx, GLenum opcode) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int tmp = intel_translate_logic_op(opcode); - - DBG("%s\n", __FUNCTION__); - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_STATE4] &= ~LOGICOP_MASK; - i915->state.Ctx[I915_CTXREG_STATE4] |= LOGIC_OP_FUNC(tmp); -} - - - -static void -i915CullFaceFrontFace(GLcontext * ctx, GLenum unused) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - GLuint mode; - - DBG("%s %d\n", __FUNCTION__, - ctx->DrawBuffer ? ctx->DrawBuffer->Name : 0); - - if (!ctx->Polygon.CullFlag) { - mode = S4_CULLMODE_NONE; - } - else if (ctx->Polygon.CullFaceMode != GL_FRONT_AND_BACK) { - mode = S4_CULLMODE_CW; - - if (ctx->DrawBuffer && ctx->DrawBuffer->Name != 0) - mode ^= (S4_CULLMODE_CW ^ S4_CULLMODE_CCW); - if (ctx->Polygon.CullFaceMode == GL_FRONT) - mode ^= (S4_CULLMODE_CW ^ S4_CULLMODE_CCW); - if (ctx->Polygon.FrontFace != GL_CCW) - mode ^= (S4_CULLMODE_CW ^ S4_CULLMODE_CCW); - } - else { - mode = S4_CULLMODE_BOTH; - } - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_LIS4] &= ~S4_CULLMODE_MASK; - i915->state.Ctx[I915_CTXREG_LIS4] |= mode; -} - -static void -i915LineWidth(GLcontext * ctx, GLfloat widthf) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int lis4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_LINE_WIDTH_MASK; - int width; - - DBG("%s\n", __FUNCTION__); - - width = (int) (widthf * 2); - CLAMP_SELF(width, 1, 0xf); - lis4 |= width << S4_LINE_WIDTH_SHIFT; - - if (lis4 != i915->state.Ctx[I915_CTXREG_LIS4]) { - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_LIS4] = lis4; - } -} - -static void -i915PointSize(GLcontext * ctx, GLfloat size) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - int lis4 = i915->state.Ctx[I915_CTXREG_LIS4] & ~S4_POINT_WIDTH_MASK; - GLint point_size = (int) size; - - DBG("%s\n", __FUNCTION__); - - CLAMP_SELF(point_size, 1, 255); - lis4 |= point_size << S4_POINT_WIDTH_SHIFT; - - if (lis4 != i915->state.Ctx[I915_CTXREG_LIS4]) { - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_LIS4] = lis4; - } -} - - -/* ============================================================= - * Color masks - */ - -static void -i915ColorMask(GLcontext * ctx, - GLboolean r, GLboolean g, GLboolean b, GLboolean a) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - GLuint tmp = i915->state.Ctx[I915_CTXREG_LIS5] & ~S5_WRITEDISABLE_MASK; - - DBG("%s r(%d) g(%d) b(%d) a(%d)\n", __FUNCTION__, r, g, b, - a); - - if (!r) - tmp |= S5_WRITEDISABLE_RED; - if (!g) - tmp |= S5_WRITEDISABLE_GREEN; - if (!b) - tmp |= S5_WRITEDISABLE_BLUE; - if (!a) - tmp |= S5_WRITEDISABLE_ALPHA; - - if (tmp != i915->state.Ctx[I915_CTXREG_LIS5]) { - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - i915->state.Ctx[I915_CTXREG_LIS5] = tmp; - } -} - -static void -update_specular(GLcontext * ctx) -{ - /* A hack to trigger the rebuild of the fragment program. - */ - intel_context(ctx)->NewGLState |= _NEW_TEXTURE; -} - -static void -i915LightModelfv(GLcontext * ctx, GLenum pname, const GLfloat * param) -{ - DBG("%s\n", __FUNCTION__); - - if (pname == GL_LIGHT_MODEL_COLOR_CONTROL) { - update_specular(ctx); - } -} - -static void -i915ShadeModel(GLcontext * ctx, GLenum mode) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - - if (mode == GL_SMOOTH) { - i915->state.Ctx[I915_CTXREG_LIS4] &= ~(S4_FLATSHADE_ALPHA | - S4_FLATSHADE_COLOR | - S4_FLATSHADE_SPECULAR); - } - else { - i915->state.Ctx[I915_CTXREG_LIS4] |= (S4_FLATSHADE_ALPHA | - S4_FLATSHADE_COLOR | - S4_FLATSHADE_SPECULAR); - } -} - -/* ============================================================= - * Fog - */ -void -i915_update_fog(GLcontext * ctx) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - GLenum mode; - GLboolean enabled; - GLboolean try_pixel_fog; - - if (ctx->FragmentProgram._Active) { - /* Pull in static fog state from program */ - mode = ctx->FragmentProgram._Current->FogOption; - enabled = (mode != GL_NONE); - try_pixel_fog = 0; - } - else { - enabled = ctx->Fog.Enabled; - mode = ctx->Fog.Mode; -#if 0 - /* XXX - DISABLED -- Need ortho fallback */ - try_pixel_fog = (ctx->Fog.FogCoordinateSource == GL_FRAGMENT_DEPTH_EXT - && ctx->Hint.Fog == GL_NICEST); -#else - try_pixel_fog = 0; -#endif - } - - if (!enabled) { - i915->vertex_fog = I915_FOG_NONE; - } - else if (try_pixel_fog) { - I915_STATECHANGE(i915, I915_UPLOAD_FOG); - i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK; - i915->vertex_fog = I915_FOG_PIXEL; - - switch (mode) { - case GL_LINEAR: - if (ctx->Fog.End <= ctx->Fog.Start) { - /* XXX - this won't work with fragment programs. Need to - * either fallback or append fog instructions to end of - * program in the case of linear fog. - */ - printf("vertex fog!\n"); - i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_VERTEX; - i915->vertex_fog = I915_FOG_VERTEX; - } - else { - GLfloat c2 = 1.0 / (ctx->Fog.End - ctx->Fog.Start); - GLfloat c1 = ctx->Fog.End * c2; - - i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_C1_MASK; - i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_LINEAR; - i915->state.Fog[I915_FOGREG_MODE1] |= - ((GLuint) (c1 * FMC1_C1_ONE)) & FMC1_C1_MASK; - - if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) { - i915->state.Fog[I915_FOGREG_MODE2] - = (GLuint) (c2 * FMC2_C2_ONE); - } - else { - fi_type fi; - fi.f = c2; - i915->state.Fog[I915_FOGREG_MODE2] = fi.i; - } - } - break; - case GL_EXP: - i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_EXP; - break; - case GL_EXP2: - i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_PIXEL_EXP2; - break; - default: - break; - } - } - else { /* if (i915->vertex_fog != I915_FOG_VERTEX) */ - I915_STATECHANGE(i915, I915_UPLOAD_FOG); - i915->state.Fog[I915_FOGREG_MODE1] &= ~FMC1_FOGFUNC_MASK; - i915->state.Fog[I915_FOGREG_MODE1] |= FMC1_FOGFUNC_VERTEX; - i915->vertex_fog = I915_FOG_VERTEX; - } - - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - I915_ACTIVESTATE(i915, I915_UPLOAD_FOG, enabled); - if (enabled) - i915->state.Ctx[I915_CTXREG_LIS5] |= S5_FOG_ENABLE; - else - i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_FOG_ENABLE; - - /* Always enable pixel fog. Vertex fog using fog coord will conflict - * with fog code appended onto fragment program. - */ - _tnl_allow_vertex_fog( ctx, 0 ); - _tnl_allow_pixel_fog( ctx, 1 ); -} - -static void -i915Fogfv(GLcontext * ctx, GLenum pname, const GLfloat * param) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - - switch (pname) { - case GL_FOG_COORDINATE_SOURCE_EXT: - case GL_FOG_MODE: - case GL_FOG_START: - case GL_FOG_END: - break; - - case GL_FOG_DENSITY: - I915_STATECHANGE(i915, I915_UPLOAD_FOG); - - if (i915->state.Fog[I915_FOGREG_MODE1] & FMC1_FOGINDEX_Z) { - i915->state.Fog[I915_FOGREG_MODE3] = - (GLuint) (ctx->Fog.Density * FMC3_D_ONE); - } - else { - fi_type fi; - fi.f = ctx->Fog.Density; - i915->state.Fog[I915_FOGREG_MODE3] = fi.i; - } - break; - - case GL_FOG_COLOR: - I915_STATECHANGE(i915, I915_UPLOAD_FOG); - i915->state.Fog[I915_FOGREG_COLOR] = - (_3DSTATE_FOG_COLOR_CMD | - ((GLubyte) (ctx->Fog.Color[0] * 255.0F) << 16) | - ((GLubyte) (ctx->Fog.Color[1] * 255.0F) << 8) | - ((GLubyte) (ctx->Fog.Color[2] * 255.0F) << 0)); - break; - - default: - break; - } -} - -static void -i915Hint(GLcontext * ctx, GLenum target, GLenum state) -{ - switch (target) { - case GL_FOG_HINT: - break; - default: - break; - } -} - -/* ============================================================= - */ - -static void -i915Enable(GLcontext * ctx, GLenum cap, GLboolean state) -{ - struct i915_context *i915 = I915_CONTEXT(ctx); - - switch (cap) { - case GL_TEXTURE_2D: - break; - - case GL_LIGHTING: - case GL_COLOR_SUM: - update_specular(ctx); - break; - - case GL_ALPHA_TEST: - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - if (state) - i915->state.Ctx[I915_CTXREG_LIS6] |= S6_ALPHA_TEST_ENABLE; - else - i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_ALPHA_TEST_ENABLE; - break; - - case GL_BLEND: - i915EvalLogicOpBlendState(ctx); - break; - - case GL_COLOR_LOGIC_OP: - i915EvalLogicOpBlendState(ctx); - - /* Logicop doesn't seem to work at 16bpp: - */ - if (i915->intel.intelScreen->cpp == 2) /* XXX FBO fix */ - FALLBACK(&i915->intel, I915_FALLBACK_LOGICOP, state); - break; - - case GL_FRAGMENT_PROGRAM_ARB: - break; - - case GL_DITHER: - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - if (state) - i915->state.Ctx[I915_CTXREG_LIS5] |= S5_COLOR_DITHER_ENABLE; - else - i915->state.Ctx[I915_CTXREG_LIS5] &= ~S5_COLOR_DITHER_ENABLE; - break; - - case GL_DEPTH_TEST: - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - if (state) - i915->state.Ctx[I915_CTXREG_LIS6] |= S6_DEPTH_TEST_ENABLE; - else - i915->state.Ctx[I915_CTXREG_LIS6] &= ~S6_DEPTH_TEST_ENABLE; - - i915DepthMask(ctx, ctx->Depth.Mask); - break; - - case GL_SCISSOR_TEST: - I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS); - if (state) - i915->state.Buffer[I915_DESTREG_SENABLE] = - (_3DSTATE_SCISSOR_ENABLE_CMD | ENABLE_SCISSOR_RECT); - else - i915->state.Buffer[I915_DESTREG_SENABLE] = - (_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT); - break; - - case GL_LINE_SMOOTH: - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - if (state) - i915->state.Ctx[I915_CTXREG_LIS4] |= S4_LINE_ANTIALIAS_ENABLE; - else - i915->state.Ctx[I915_CTXREG_LIS4] &= ~S4_LINE_ANTIALIAS_ENABLE; - break; - - case GL_FOG: - break; - - case GL_CULL_FACE: - i915CullFaceFrontFace(ctx, 0); - break; - - case GL_STENCIL_TEST: - { - GLboolean hw_stencil = GL_FALSE; - if (ctx->DrawBuffer) { - struct intel_renderbuffer *irbStencil - = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_STENCIL); - hw_stencil = (irbStencil && irbStencil->region); - } - if (hw_stencil) { - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - if (state) - i915->state.Ctx[I915_CTXREG_LIS5] |= (S5_STENCIL_TEST_ENABLE | - S5_STENCIL_WRITE_ENABLE); - else - i915->state.Ctx[I915_CTXREG_LIS5] &= ~(S5_STENCIL_TEST_ENABLE | - S5_STENCIL_WRITE_ENABLE); - } - else { - FALLBACK(&i915->intel, I915_FALLBACK_STENCIL, state); - } - } - break; - - case GL_POLYGON_STIPPLE: - /* The stipple command worked on my 855GM box, but not my 845G. - * I'll do more testing later to find out exactly which hardware - * supports it. Disabled for now. - */ - if (i915->intel.hw_stipple && - i915->intel.reduced_primitive == GL_TRIANGLES) { - I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE); - if (state) - i915->state.Stipple[I915_STPREG_ST1] |= ST1_ENABLE; - else - i915->state.Stipple[I915_STPREG_ST1] &= ~ST1_ENABLE; - } - break; - - case GL_POLYGON_SMOOTH: - break; - - case GL_POINT_SMOOTH: - break; - - default: - ; - } -} - - -static void -i915_init_packets(struct i915_context *i915) -{ - intelScreenPrivate *screen = i915->intel.intelScreen; - - /* Zero all state */ - memset(&i915->state, 0, sizeof(i915->state)); - - - { - I915_STATECHANGE(i915, I915_UPLOAD_CTX); - /* Probably don't want to upload all this stuff every time one - * piece changes. - */ - i915->state.Ctx[I915_CTXREG_LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_1 | - I1_LOAD_S(2) | - I1_LOAD_S(4) | - I1_LOAD_S(5) | I1_LOAD_S(6) | (3)); - i915->state.Ctx[I915_CTXREG_LIS2] = 0; - i915->state.Ctx[I915_CTXREG_LIS4] = 0; - i915->state.Ctx[I915_CTXREG_LIS5] = 0; - - if (screen->cpp == 2) /* XXX FBO fix */ - i915->state.Ctx[I915_CTXREG_LIS5] |= S5_COLOR_DITHER_ENABLE; - - - i915->state.Ctx[I915_CTXREG_LIS6] = (S6_COLOR_WRITE_ENABLE | - (2 << S6_TRISTRIP_PV_SHIFT)); - - i915->state.Ctx[I915_CTXREG_STATE4] = (_3DSTATE_MODES_4_CMD | - ENABLE_LOGIC_OP_FUNC | - LOGIC_OP_FUNC(LOGICOP_COPY) | - ENABLE_STENCIL_TEST_MASK | - STENCIL_TEST_MASK(0xff) | - ENABLE_STENCIL_WRITE_MASK | - STENCIL_WRITE_MASK(0xff)); - - i915->state.Ctx[I915_CTXREG_IAB] = - (_3DSTATE_INDEPENDENT_ALPHA_BLEND_CMD | IAB_MODIFY_ENABLE | - IAB_MODIFY_FUNC | IAB_MODIFY_SRC_FACTOR | IAB_MODIFY_DST_FACTOR); - - i915->state.Ctx[I915_CTXREG_BLENDCOLOR0] = - _3DSTATE_CONST_BLEND_COLOR_CMD; - i915->state.Ctx[I915_CTXREG_BLENDCOLOR1] = 0; - - } - - { - I915_STATECHANGE(i915, I915_UPLOAD_STIPPLE); - i915->state.Stipple[I915_STPREG_ST0] = _3DSTATE_STIPPLE; - } - - - { - I915_STATECHANGE(i915, I915_UPLOAD_FOG); - i915->state.Fog[I915_FOGREG_MODE0] = _3DSTATE_FOG_MODE_CMD; - i915->state.Fog[I915_FOGREG_MODE1] = (FMC1_FOGFUNC_MODIFY_ENABLE | - FMC1_FOGFUNC_VERTEX | - FMC1_FOGINDEX_MODIFY_ENABLE | - FMC1_FOGINDEX_W | - FMC1_C1_C2_MODIFY_ENABLE | - FMC1_DENSITY_MODIFY_ENABLE); - i915->state.Fog[I915_FOGREG_COLOR] = _3DSTATE_FOG_COLOR_CMD; - } - - - { - I915_STATECHANGE(i915, I915_UPLOAD_BUFFERS); - /* color buffer offset/stride */ - i915->state.Buffer[I915_DESTREG_CBUFADDR0] = _3DSTATE_BUF_INFO_CMD; - /* XXX FBO: remove this? Also get set in i915_set_draw_region() */ - i915->state.Buffer[I915_DESTREG_CBUFADDR1] = (BUF_3D_ID_COLOR_BACK | BUF_3D_PITCH(screen->front.pitch) | /* pitch in bytes */ - BUF_3D_USE_FENCE); - - i915->state.Buffer[I915_DESTREG_DBUFADDR0] = _3DSTATE_BUF_INFO_CMD; - /* XXX FBO: remove this? Also get set in i915_set_draw_region() */ - i915->state.Buffer[I915_DESTREG_DBUFADDR1] = (BUF_3D_ID_DEPTH | BUF_3D_PITCH(screen->depth.pitch) | /* pitch in bytes */ - BUF_3D_USE_FENCE); - - i915->state.Buffer[I915_DESTREG_DV0] = _3DSTATE_DST_BUF_VARS_CMD; - - /* XXX FBO: remove this? Also get set in i915_set_draw_region() */ -#if 0 /* seems we don't need this */ - switch (screen->fbFormat) { - case DV_PF_565: - i915->state.Buffer[I915_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */ - DSTORG_VERT_BIAS(0x8) | /* .5 */ - LOD_PRECLAMP_OGL | - TEX_DEFAULT_COLOR_OGL | - DITHER_FULL_ALWAYS | - screen->fbFormat | - DEPTH_FRMT_16_FIXED); - break; - case DV_PF_8888: - i915->state.Buffer[I915_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */ - DSTORG_VERT_BIAS(0x8) | /* .5 */ - LOD_PRECLAMP_OGL | - TEX_DEFAULT_COLOR_OGL | - screen->fbFormat | - DEPTH_FRMT_24_FIXED_8_OTHER); - break; - } -#endif - - - /* scissor */ - i915->state.Buffer[I915_DESTREG_SENABLE] = - (_3DSTATE_SCISSOR_ENABLE_CMD | DISABLE_SCISSOR_RECT); - i915->state.Buffer[I915_DESTREG_SR0] = _3DSTATE_SCISSOR_RECT_0_CMD; - i915->state.Buffer[I915_DESTREG_SR1] = 0; - i915->state.Buffer[I915_DESTREG_SR2] = 0; - } - - -#if 0 - { - I915_STATECHANGE(i915, I915_UPLOAD_DEFAULTS); - i915->state.Default[I915_DEFREG_C0] = _3DSTATE_DEFAULT_DIFFUSE; - i915->state.Default[I915_DEFREG_C1] = 0; - i915->state.Default[I915_DEFREG_S0] = _3DSTATE_DEFAULT_SPECULAR; - i915->state.Default[I915_DEFREG_S1] = 0; - i915->state.Default[I915_DEFREG_Z0] = _3DSTATE_DEFAULT_Z; - i915->state.Default[I915_DEFREG_Z1] = 0; - } -#endif - - - /* These will be emitted every at the head of every buffer, unless - * we get hardware contexts working. - */ - i915->state.active = (I915_UPLOAD_PROGRAM | - I915_UPLOAD_STIPPLE | - I915_UPLOAD_CTX | - I915_UPLOAD_BUFFERS | I915_UPLOAD_INVARIENT); -} - -void -i915InitStateFunctions(struct dd_function_table *functions) -{ - functions->AlphaFunc = i915AlphaFunc; - functions->BlendColor = i915BlendColor; - functions->BlendEquationSeparate = i915BlendEquationSeparate; - functions->BlendFuncSeparate = i915BlendFuncSeparate; - functions->ColorMask = i915ColorMask; - functions->CullFace = i915CullFaceFrontFace; - functions->DepthFunc = i915DepthFunc; - functions->DepthMask = i915DepthMask; - functions->Enable = i915Enable; - functions->Fogfv = i915Fogfv; - functions->FrontFace = i915CullFaceFrontFace; - functions->Hint = i915Hint; - functions->LightModelfv = i915LightModelfv; - functions->LineWidth = i915LineWidth; - functions->LogicOpcode = i915LogicOp; - functions->PointSize = i915PointSize; - functions->PolygonStipple = i915PolygonStipple; - functions->Scissor = i915Scissor; - functions->ShadeModel = i915ShadeModel; - functions->StencilFuncSeparate = i915StencilFuncSeparate; - functions->StencilMaskSeparate = i915StencilMaskSeparate; - functions->StencilOpSeparate = i915StencilOpSeparate; -} - - -void -i915InitState(struct i915_context *i915) -{ - GLcontext *ctx = &i915->intel.ctx; - - i915_init_packets(i915); - - _mesa_init_driver_state(ctx); - - memcpy(&i915->initial, &i915->state, sizeof(i915->state)); - i915->current = &i915->state; -} |