functions from context.c

1 files changed, 1179 insertions, 0 deletions

diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
new file mode 100644
index 00000000000..f6449a8467f
--- /dev/null
+++ b/src/mesa/main/state.c
@@ -0,0 +1,1179 @@
+/* $Id: state.c,v 1.1 2000/02/02 19:15:19 brianp Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  3.3
+ *
+ * Copyright (C) 1999-2000  Brian Paul   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, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+
+#ifdef PC_HEADER
+#include "all.h"
+#else
+#include "glheader.h"
+#include "accum.h"
+#include "alpha.h"
+#include "attrib.h"
+#include "bitmap.h"
+#include "blend.h"
+#include "buffers.h"
+#include "clip.h"
+#include "colortab.h"
+#include "context.h"
+#include "copypix.h"
+#include "cva.h"
+#include "depth.h"
+#include "dlist.h"
+#include "drawpix.h"
+#include "enable.h"
+#include "eval.h"
+#include "get.h"
+#include "feedback.h"
+#include "fog.h"
+#include "hint.h"
+#include "imaging.h"
+#include "light.h"
+#include "lines.h"
+#include "logic.h"
+#include "masking.h"
+#include "matrix.h"
+#include "mmath.h"
+#include "pipeline.h"
+#include "pixel.h"
+#include "points.h"
+#include "polygon.h"
+#include "quads.h"
+#include "rastpos.h"
+#include "readpix.h"
+#include "rect.h"
+#include "scissor.h"
+#include "shade.h"
+#include "state.h"
+#include "stencil.h"
+#include "teximage.h"
+#include "texobj.h"
+#include "texstate.h"
+#include "texture.h"
+#include "triangle.h"
+#include "types.h"
+#include "varray.h"
+#include "vbfill.h"
+#include "vbrender.h"
+#include "winpos.h"
+#endif
+
+
+
+
+
+static int
+generic_noop(void)
+{
+#ifdef DEBUG
+   gl_problem(NULL, "undefined function dispatch");
+#endif
+   return 0;
+}
+
+
+void
+_mesa_init_no_op_table(struct _glapi_table *table)
+{
+   /* Check to be sure the dispatcher's table is at least as big as Mesa's. */
+   const GLuint size = sizeof(struct _glapi_table) / sizeof(void *);
+   assert(_glapi_get_dispatch_table_size() >= size);
+
+   {
+      const GLuint n = _glapi_get_dispatch_table_size();
+      GLuint i;
+      void **dispatch = (void **) table;
+      for (i = 0; i < n; i++) {
+         dispatch[i] = (void *) generic_noop;
+      }
+   }
+}
+
+
+/*
+ * Initialize the given dispatch table with pointers to Mesa's
+ * immediate-mode commands.
+ */
+void
+_mesa_init_exec_table(struct _glapi_table *exec)
+{
+   /* first initialize all dispatch slots to no-op */
+   _mesa_init_no_op_table(exec);
+
+   /* load the dispatch slots we understand */
+   exec->Accum = _mesa_Accum;
+   exec->AlphaFunc = _mesa_AlphaFunc;
+   exec->Begin = _mesa_Begin;
+   exec->Bitmap = _mesa_Bitmap;
+   exec->BlendFunc = _mesa_BlendFunc;
+   exec->CallList = _mesa_CallList;
+   exec->CallLists = _mesa_CallLists;
+   exec->Clear = _mesa_Clear;
+   exec->ClearAccum = _mesa_ClearAccum;
+   exec->ClearColor = _mesa_ClearColor;
+   exec->ClearDepth = _mesa_ClearDepth;
+   exec->ClearIndex = _mesa_ClearIndex;
+   exec->ClearStencil = _mesa_ClearStencil;
+   exec->ClipPlane = _mesa_ClipPlane;
+   exec->Color3b = _mesa_Color3b;
+   exec->Color3bv = _mesa_Color3bv;
+   exec->Color3d = _mesa_Color3d;
+   exec->Color3dv = _mesa_Color3dv;
+   exec->Color3f = _mesa_Color3f;
+   exec->Color3fv = _mesa_Color3fv;
+   exec->Color3i = _mesa_Color3i;
+   exec->Color3iv = _mesa_Color3iv;
+   exec->Color3s = _mesa_Color3s;
+   exec->Color3sv = _mesa_Color3sv;
+   exec->Color3ub = _mesa_Color3ub;
+   exec->Color3ubv = _mesa_Color3ubv;
+   exec->Color3ui = _mesa_Color3ui;
+   exec->Color3uiv = _mesa_Color3uiv;
+   exec->Color3us = _mesa_Color3us;
+   exec->Color3usv = _mesa_Color3usv;
+   exec->Color4b = _mesa_Color4b;
+   exec->Color4bv = _mesa_Color4bv;
+   exec->Color4d = _mesa_Color4d;
+   exec->Color4dv = _mesa_Color4dv;
+   exec->Color4f = _mesa_Color4f;
+   exec->Color4fv = _mesa_Color4fv;
+   exec->Color4i = _mesa_Color4i;
+   exec->Color4iv = _mesa_Color4iv;
+   exec->Color4s = _mesa_Color4s;
+   exec->Color4sv = _mesa_Color4sv;
+   exec->Color4ub = _mesa_Color4ub;
+   exec->Color4ubv = _mesa_Color4ubv;
+   exec->Color4ui = _mesa_Color4ui;
+   exec->Color4uiv = _mesa_Color4uiv;
+   exec->Color4us = _mesa_Color4us;
+   exec->Color4usv = _mesa_Color4usv;
+   exec->ColorMask = _mesa_ColorMask;
+   exec->ColorMaterial = _mesa_ColorMaterial;
+   exec->CopyPixels = _mesa_CopyPixels;
+   exec->CullFace = _mesa_CullFace;
+   exec->DeleteLists = _mesa_DeleteLists;
+   exec->DepthFunc = _mesa_DepthFunc;
+   exec->DepthMask = _mesa_DepthMask;
+   exec->DepthRange = _mesa_DepthRange;
+   exec->Disable = _mesa_Disable;
+   exec->DrawBuffer = _mesa_DrawBuffer;
+   exec->DrawPixels = _mesa_DrawPixels;
+   exec->EdgeFlag = _mesa_EdgeFlag;
+   exec->EdgeFlagv = _mesa_EdgeFlagv;
+   exec->Enable = _mesa_Enable;
+   exec->End = _mesa_End;
+   exec->EndList = _mesa_EndList;
+   exec->EvalCoord1d = _mesa_EvalCoord1d;
+   exec->EvalCoord1dv = _mesa_EvalCoord1dv;
+   exec->EvalCoord1f = _mesa_EvalCoord1f;
+   exec->EvalCoord1fv = _mesa_EvalCoord1fv;
+   exec->EvalCoord2d = _mesa_EvalCoord2d;
+   exec->EvalCoord2dv = _mesa_EvalCoord2dv;
+   exec->EvalCoord2f = _mesa_EvalCoord2f;
+   exec->EvalCoord2fv = _mesa_EvalCoord2fv;
+   exec->EvalMesh1 = _mesa_EvalMesh1;
+   exec->EvalMesh2 = _mesa_EvalMesh2;
+   exec->EvalPoint1 = _mesa_EvalPoint1;
+   exec->EvalPoint2 = _mesa_EvalPoint2;
+   exec->FeedbackBuffer = _mesa_FeedbackBuffer;
+   exec->Finish = _mesa_Finish;
+   exec->Flush = _mesa_Flush;
+   exec->Fogf = _mesa_Fogf;
+   exec->Fogfv = _mesa_Fogfv;
+   exec->Fogi = _mesa_Fogi;
+   exec->Fogiv = _mesa_Fogiv;
+   exec->FrontFace = _mesa_FrontFace;
+   exec->Frustum = _mesa_Frustum;
+   exec->GenLists = _mesa_GenLists;
+   exec->GetBooleanv = _mesa_GetBooleanv;
+   exec->GetClipPlane = _mesa_GetClipPlane;
+   exec->GetDoublev = _mesa_GetDoublev;
+   exec->GetError = _mesa_GetError;
+   exec->GetFloatv = _mesa_GetFloatv;
+   exec->GetIntegerv = _mesa_GetIntegerv;
+   exec->GetLightfv = _mesa_GetLightfv;
+   exec->GetLightiv = _mesa_GetLightiv;
+   exec->GetMapdv = _mesa_GetMapdv;
+   exec->GetMapfv = _mesa_GetMapfv;
+   exec->GetMapiv = _mesa_GetMapiv;
+   exec->GetMaterialfv = _mesa_GetMaterialfv;
+   exec->GetMaterialiv = _mesa_GetMaterialiv;
+   exec->GetPixelMapfv = _mesa_GetPixelMapfv;
+   exec->GetPixelMapuiv = _mesa_GetPixelMapuiv;
+   exec->GetPixelMapusv = _mesa_GetPixelMapusv;
+   exec->GetPolygonStipple = _mesa_GetPolygonStipple;
+   exec->GetString = _mesa_GetString;
+   exec->GetTexEnvfv = _mesa_GetTexEnvfv;
+   exec->GetTexEnviv = _mesa_GetTexEnviv;
+   exec->GetTexGendv = _mesa_GetTexGendv;
+   exec->GetTexGenfv = _mesa_GetTexGenfv;
+   exec->GetTexGeniv = _mesa_GetTexGeniv;
+   exec->GetTexImage = _mesa_GetTexImage;
+   exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv;
+   exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv;
+   exec->GetTexParameterfv = _mesa_GetTexParameterfv;
+   exec->GetTexParameteriv = _mesa_GetTexParameteriv;
+   exec->Hint = _mesa_Hint;
+   exec->IndexMask = _mesa_IndexMask;
+   exec->Indexd = _mesa_Indexd;
+   exec->Indexdv = _mesa_Indexdv;
+   exec->Indexf = _mesa_Indexf;
+   exec->Indexfv = _mesa_Indexfv;
+   exec->Indexi = _mesa_Indexi;
+   exec->Indexiv = _mesa_Indexiv;
+   exec->Indexs = _mesa_Indexs;
+   exec->Indexsv = _mesa_Indexsv;
+   exec->InitNames = _mesa_InitNames;
+   exec->IsEnabled = _mesa_IsEnabled;
+   exec->IsList = _mesa_IsList;
+   exec->LightModelf = _mesa_LightModelf;
+   exec->LightModelfv = _mesa_LightModelfv;
+   exec->LightModeli = _mesa_LightModeli;
+   exec->LightModeliv = _mesa_LightModeliv;
+   exec->Lightf = _mesa_Lightf;
+   exec->Lightfv = _mesa_Lightfv;
+   exec->Lighti = _mesa_Lighti;
+   exec->Lightiv = _mesa_Lightiv;
+   exec->LineStipple = _mesa_LineStipple;
+   exec->LineWidth = _mesa_LineWidth;
+   exec->ListBase = _mesa_ListBase;
+   exec->LoadIdentity = _mesa_LoadIdentity;
+   exec->LoadMatrixd = _mesa_LoadMatrixd;
+   exec->LoadMatrixf = _mesa_LoadMatrixf;
+   exec->LoadName = _mesa_LoadName;
+   exec->LogicOp = _mesa_LogicOp;
+   exec->Map1d = _mesa_Map1d;
+   exec->Map1f = _mesa_Map1f;
+   exec->Map2d = _mesa_Map2d;
+   exec->Map2f = _mesa_Map2f;
+   exec->MapGrid1d = _mesa_MapGrid1d;
+   exec->MapGrid1f = _mesa_MapGrid1f;
+   exec->MapGrid2d = _mesa_MapGrid2d;
+   exec->MapGrid2f = _mesa_MapGrid2f;
+   exec->Materialf = _mesa_Materialf;
+   exec->Materialfv = _mesa_Materialfv;
+   exec->Materiali = _mesa_Materiali;
+   exec->Materialiv = _mesa_Materialiv;
+   exec->MatrixMode = _mesa_MatrixMode;
+   exec->MultMatrixd = _mesa_MultMatrixd;
+   exec->MultMatrixf = _mesa_MultMatrixf;
+   exec->NewList = _mesa_NewList;
+   exec->Normal3b = _mesa_Normal3b;
+   exec->Normal3bv = _mesa_Normal3bv;
+   exec->Normal3d = _mesa_Normal3d;
+   exec->Normal3dv = _mesa_Normal3dv;
+   exec->Normal3f = _mesa_Normal3f;
+   exec->Normal3fv = _mesa_Normal3fv;
+   exec->Normal3i = _mesa_Normal3i;
+   exec->Normal3iv = _mesa_Normal3iv;
+   exec->Normal3s = _mesa_Normal3s;
+   exec->Normal3sv = _mesa_Normal3sv;
+   exec->Ortho = _mesa_Ortho;
+   exec->PassThrough = _mesa_PassThrough;
+   exec->PixelMapfv = _mesa_PixelMapfv;
+   exec->PixelMapuiv = _mesa_PixelMapuiv;
+   exec->PixelMapusv = _mesa_PixelMapusv;
+   exec->PixelStoref = _mesa_PixelStoref;
+   exec->PixelStorei = _mesa_PixelStorei;
+   exec->PixelTransferf = _mesa_PixelTransferf;
+   exec->PixelTransferi = _mesa_PixelTransferi;
+   exec->PixelZoom = _mesa_PixelZoom;
+   exec->PointSize = _mesa_PointSize;
+   exec->PolygonMode = _mesa_PolygonMode;
+   exec->PolygonOffset = _mesa_PolygonOffset;
+   exec->PolygonStipple = _mesa_PolygonStipple;
+   exec->PopAttrib = _mesa_PopAttrib;
+   exec->PopMatrix = _mesa_PopMatrix;
+   exec->PopName = _mesa_PopName;
+   exec->PushAttrib = _mesa_PushAttrib;
+   exec->PushMatrix = _mesa_PushMatrix;
+   exec->PushName = _mesa_PushName;
+   exec->RasterPos2d = _mesa_RasterPos2d;
+   exec->RasterPos2dv = _mesa_RasterPos2dv;
+   exec->RasterPos2f = _mesa_RasterPos2f;
+   exec->RasterPos2fv = _mesa_RasterPos2fv;
+   exec->RasterPos2i = _mesa_RasterPos2i;
+   exec->RasterPos2iv = _mesa_RasterPos2iv;
+   exec->RasterPos2s = _mesa_RasterPos2s;
+   exec->RasterPos2sv = _mesa_RasterPos2sv;
+   exec->RasterPos3d = _mesa_RasterPos3d;
+   exec->RasterPos3dv = _mesa_RasterPos3dv;
+   exec->RasterPos3f = _mesa_RasterPos3f;
+   exec->RasterPos3fv = _mesa_RasterPos3fv;
+   exec->RasterPos3i = _mesa_RasterPos3i;
+   exec->RasterPos3iv = _mesa_RasterPos3iv;
+   exec->RasterPos3s = _mesa_RasterPos3s;
+   exec->RasterPos3sv = _mesa_RasterPos3sv;
+   exec->RasterPos4d = _mesa_RasterPos4d;
+   exec->RasterPos4dv = _mesa_RasterPos4dv;
+   exec->RasterPos4f = _mesa_RasterPos4f;
+   exec->RasterPos4fv = _mesa_RasterPos4fv;
+   exec->RasterPos4i = _mesa_RasterPos4i;
+   exec->RasterPos4iv = _mesa_RasterPos4iv;
+   exec->RasterPos4s = _mesa_RasterPos4s;
+   exec->RasterPos4sv = _mesa_RasterPos4sv;
+   exec->ReadBuffer = _mesa_ReadBuffer;
+   exec->ReadPixels = _mesa_ReadPixels;
+   exec->Rectd = _mesa_Rectd;
+   exec->Rectdv = _mesa_Rectdv;
+   exec->Rectf = _mesa_Rectf;
+   exec->Rectfv = _mesa_Rectfv;
+   exec->Recti = _mesa_Recti;
+   exec->Rectiv = _mesa_Rectiv;
+   exec->Rects = _mesa_Rects;
+   exec->Rectsv = _mesa_Rectsv;
+   exec->RenderMode = _mesa_RenderMode;
+   exec->Rotated = _mesa_Rotated;
+   exec->Rotatef = _mesa_Rotatef;
+   exec->Scaled = _mesa_Scaled;
+   exec->Scalef = _mesa_Scalef;
+   exec->Scissor = _mesa_Scissor;
+   exec->SelectBuffer = _mesa_SelectBuffer;
+   exec->ShadeModel = _mesa_ShadeModel;
+   exec->StencilFunc = _mesa_StencilFunc;
+   exec->StencilMask = _mesa_StencilMask;
+   exec->StencilOp = _mesa_StencilOp;
+   exec->TexCoord1d = _mesa_TexCoord1d;
+   exec->TexCoord1dv = _mesa_TexCoord1dv;
+   exec->TexCoord1f = _mesa_TexCoord1f;
+   exec->TexCoord1fv = _mesa_TexCoord1fv;
+   exec->TexCoord1i = _mesa_TexCoord1i;
+   exec->TexCoord1iv = _mesa_TexCoord1iv;
+   exec->TexCoord1s = _mesa_TexCoord1s;
+   exec->TexCoord1sv = _mesa_TexCoord1sv;
+   exec->TexCoord2d = _mesa_TexCoord2d;
+   exec->TexCoord2dv = _mesa_TexCoord2dv;
+   exec->TexCoord2f = _mesa_TexCoord2f;
+   exec->TexCoord2fv = _mesa_TexCoord2fv;
+   exec->TexCoord2i = _mesa_TexCoord2i;
+   exec->TexCoord2iv = _mesa_TexCoord2iv;
+   exec->TexCoord2s = _mesa_TexCoord2s;
+   exec->TexCoord2sv = _mesa_TexCoord2sv;
+   exec->TexCoord3d = _mesa_TexCoord3d;
+   exec->TexCoord3dv = _mesa_TexCoord3dv;
+   exec->TexCoord3f = _mesa_TexCoord3f;
+   exec->TexCoord3fv = _mesa_TexCoord3fv;
+   exec->TexCoord3i = _mesa_TexCoord3i;
+   exec->TexCoord3iv = _mesa_TexCoord3iv;
+   exec->TexCoord3s = _mesa_TexCoord3s;
+   exec->TexCoord3sv = _mesa_TexCoord3sv;
+   exec->TexCoord4d = _mesa_TexCoord4d;
+   exec->TexCoord4dv = _mesa_TexCoord4dv;
+   exec->TexCoord4f = _mesa_TexCoord4f;
+   exec->TexCoord4fv = _mesa_TexCoord4fv;
+   exec->TexCoord4i = _mesa_TexCoord4i;
+   exec->TexCoord4iv = _mesa_TexCoord4iv;
+   exec->TexCoord4s = _mesa_TexCoord4s;
+   exec->TexCoord4sv = _mesa_TexCoord4sv;
+   exec->TexEnvf = _mesa_TexEnvf;
+   exec->TexEnvfv = _mesa_TexEnvfv;
+   exec->TexEnvi = _mesa_TexEnvi;
+   exec->TexEnviv = _mesa_TexEnviv;
+   exec->TexGend = _mesa_TexGend;
+   exec->TexGendv = _mesa_TexGendv;
+   exec->TexGenf = _mesa_TexGenf;
+   exec->TexGenfv = _mesa_TexGenfv;
+   exec->TexGeni = _mesa_TexGeni;
+   exec->TexGeniv = _mesa_TexGeniv;
+   exec->TexImage1D = _mesa_TexImage1D;
+   exec->TexImage2D = _mesa_TexImage2D;
+   exec->TexParameterf = _mesa_TexParameterf;
+   exec->TexParameterfv = _mesa_TexParameterfv;
+   exec->TexParameteri = _mesa_TexParameteri;
+   exec->TexParameteriv = _mesa_TexParameteriv;
+   exec->Translated = _mesa_Translated;
+   exec->Translatef = _mesa_Translatef;
+   exec->Vertex2d = _mesa_Vertex2d;
+   exec->Vertex2dv = _mesa_Vertex2dv;
+   exec->Vertex2f = _mesa_Vertex2f;
+   exec->Vertex2fv = _mesa_Vertex2fv;
+   exec->Vertex2i = _mesa_Vertex2i;
+   exec->Vertex2iv = _mesa_Vertex2iv;
+   exec->Vertex2s = _mesa_Vertex2s;
+   exec->Vertex2sv = _mesa_Vertex2sv;
+   exec->Vertex3d = _mesa_Vertex3d;
+   exec->Vertex3dv = _mesa_Vertex3dv;
+   exec->Vertex3f = _mesa_Vertex3f;
+   exec->Vertex3fv = _mesa_Vertex3fv;
+   exec->Vertex3i = _mesa_Vertex3i;
+   exec->Vertex3iv = _mesa_Vertex3iv;
+   exec->Vertex3s = _mesa_Vertex3s;
+   exec->Vertex3sv = _mesa_Vertex3sv;
+   exec->Vertex4d = _mesa_Vertex4d;
+   exec->Vertex4dv = _mesa_Vertex4dv;
+   exec->Vertex4f = _mesa_Vertex4f;
+   exec->Vertex4fv = _mesa_Vertex4fv;
+   exec->Vertex4i = _mesa_Vertex4i;
+   exec->Vertex4iv = _mesa_Vertex4iv;
+   exec->Vertex4s = _mesa_Vertex4s;
+   exec->Vertex4sv = _mesa_Vertex4sv;
+   exec->Viewport = _mesa_Viewport;
+
+   /* 1.1 */
+   exec->AreTexturesResident = _mesa_AreTexturesResident;
+   exec->ArrayElement = _mesa_ArrayElement;
+   exec->BindTexture = _mesa_BindTexture;
+   exec->ColorPointer = _mesa_ColorPointer;
+   exec->CopyTexImage1D = _mesa_CopyTexImage1D;
+   exec->CopyTexImage2D = _mesa_CopyTexImage2D;
+   exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;
+   exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;
+   exec->DeleteTextures = _mesa_DeleteTextures;
+   exec->DisableClientState = _mesa_DisableClientState;
+   exec->DrawArrays = _mesa_DrawArrays;
+   exec->DrawElements = _mesa_DrawElements;
+   exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;
+   exec->EnableClientState = _mesa_EnableClientState;
+   exec->GenTextures = _mesa_GenTextures;
+   exec->GetPointerv = _mesa_GetPointerv;
+   exec->IndexPointer = _mesa_IndexPointer;
+   exec->Indexub = _mesa_Indexub;
+   exec->Indexubv = _mesa_Indexubv;
+   exec->InterleavedArrays = _mesa_InterleavedArrays;
+   exec->IsTexture = _mesa_IsTexture;
+   exec->NormalPointer = _mesa_NormalPointer;
+   exec->PopClientAttrib = _mesa_PopClientAttrib;
+   exec->PrioritizeTextures = _mesa_PrioritizeTextures;
+   exec->PushClientAttrib = _mesa_PushClientAttrib;
+   exec->TexCoordPointer = _mesa_TexCoordPointer;
+   exec->TexSubImage1D = _mesa_TexSubImage1D;
+   exec->TexSubImage2D = _mesa_TexSubImage2D;
+   exec->VertexPointer = _mesa_VertexPointer;
+
+   /* 1.2 */
+   exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D;
+   exec->DrawRangeElements = _mesa_DrawRangeElements;
+   exec->TexImage3D = _mesa_TexImage3D;
+   exec->TexSubImage3D = _mesa_TexSubImage3D;
+
+
+   /* OpenGL 1.2  GL_ARB_imaging */
+   exec->BlendColor = _mesa_BlendColor;
+   exec->BlendEquation = _mesa_BlendEquation;
+   exec->ColorSubTable = _mesa_ColorSubTable;
+   exec->ColorTable = _mesa_ColorTable;
+   exec->ColorTableParameterfv = _mesa_ColorTableParameterfv;
+   exec->ColorTableParameteriv = _mesa_ColorTableParameteriv;
+   exec->ConvolutionFilter1D = _mesa_ConvolutionFilter1D;
+   exec->ConvolutionFilter2D = _mesa_ConvolutionFilter2D;
+   exec->ConvolutionParameterf = _mesa_ConvolutionParameterf;
+   exec->ConvolutionParameterfv = _mesa_ConvolutionParameterfv;
+   exec->ConvolutionParameteri = _mesa_ConvolutionParameteri;
+   exec->ConvolutionParameteriv = _mesa_ConvolutionParameteriv;
+   exec->CopyColorSubTable = _mesa_CopyColorSubTable;
+   exec->CopyColorTable = _mesa_CopyColorTable;
+   exec->CopyConvolutionFilter1D = _mesa_CopyConvolutionFilter1D;
+   exec->CopyConvolutionFilter2D = _mesa_CopyConvolutionFilter2D;
+   exec->GetColorTable = _mesa_GetColorTable;
+   exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;
+   exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;
+   exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;
+   exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;
+   exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;
+   exec->GetHistogram = _mesa_GetHistogram;
+   exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;
+   exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;
+   exec->GetMinmax = _mesa_GetMinmax;
+   exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;
+   exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;
+   exec->GetSeparableFilter = _mesa_GetSeparableFilter;
+   exec->Histogram = _mesa_Histogram;
+   exec->Minmax = _mesa_Minmax;
+   exec->ResetHistogram = _mesa_ResetHistogram;
+   exec->ResetMinmax = _mesa_ResetMinmax;
+   exec->SeparableFilter2D = _mesa_SeparableFilter2D;
+
+   /* 6. GL_EXT_texture3d */
+   exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D;
+   exec->TexImage3DEXT = _mesa_TexImage3DEXT;
+   exec->TexSubImage3DEXT = _mesa_TexSubImage3D;
+
+   /* GL_EXT_paletted_texture */
+   exec->ColorTableEXT = _mesa_ColorTableEXT;
+   exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;
+   exec->GetColorTableEXT = _mesa_GetColorTableEXT;
+   exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfvEXT;
+   exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameterivEXT;
+
+   /* GL_EXT_compiled_vertex_array */
+   exec->LockArraysEXT = _mesa_LockArraysEXT;
+   exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;
+
+   /* GL_EXT_point_parameters */
+   exec->PointParameterfEXT = _mesa_PointParameterfEXT;
+   exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;
+
+   /* 77. GL_PGI_misc_hints */
+   exec->HintPGI = _mesa_HintPGI;
+
+   /* GL_EXT_polygon_offset */
+   exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;
+
+   /* GL_EXT_blend_minmax */
+   exec->BlendEquationEXT = _mesa_BlendEquationEXT;
+
+   /* GL_EXT_blend_color */
+   exec->BlendColorEXT = _mesa_BlendColorEXT;
+
+   /* GL_ARB_multitexture */
+   exec->ActiveTextureARB = _mesa_ActiveTextureARB;
+   exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;
+   exec->MultiTexCoord1dARB = _mesa_MultiTexCoord1dARB;
+   exec->MultiTexCoord1dvARB = _mesa_MultiTexCoord1dvARB;
+   exec->MultiTexCoord1fARB = _mesa_MultiTexCoord1fARB;
+   exec->MultiTexCoord1fvARB = _mesa_MultiTexCoord1fvARB;
+   exec->MultiTexCoord1iARB = _mesa_MultiTexCoord1iARB;
+   exec->MultiTexCoord1ivARB = _mesa_MultiTexCoord1ivARB;
+   exec->MultiTexCoord1sARB = _mesa_MultiTexCoord1sARB;
+   exec->MultiTexCoord1svARB = _mesa_MultiTexCoord1svARB;
+   exec->MultiTexCoord2dARB = _mesa_MultiTexCoord2dARB;
+   exec->MultiTexCoord2dvARB = _mesa_MultiTexCoord2dvARB;
+   exec->MultiTexCoord2fARB = _mesa_MultiTexCoord2fARB;
+   exec->MultiTexCoord2fvARB = _mesa_MultiTexCoord2fvARB;
+   exec->MultiTexCoord2iARB = _mesa_MultiTexCoord2iARB;
+   exec->MultiTexCoord2ivARB = _mesa_MultiTexCoord2ivARB;
+   exec->MultiTexCoord2sARB = _mesa_MultiTexCoord2sARB;
+   exec->MultiTexCoord2svARB = _mesa_MultiTexCoord2svARB;
+   exec->MultiTexCoord3dARB = _mesa_MultiTexCoord3dARB;
+   exec->MultiTexCoord3dvARB = _mesa_MultiTexCoord3dvARB;
+   exec->MultiTexCoord3fARB = _mesa_MultiTexCoord3fARB;
+   exec->MultiTexCoord3fvARB = _mesa_MultiTexCoord3fvARB;
+   exec->MultiTexCoord3iARB = _mesa_MultiTexCoord3iARB;
+   exec->MultiTexCoord3ivARB = _mesa_MultiTexCoord3ivARB;
+   exec->MultiTexCoord3sARB = _mesa_MultiTexCoord3sARB;
+   exec->MultiTexCoord3svARB = _mesa_MultiTexCoord3svARB;
+   exec->MultiTexCoord4dARB = _mesa_MultiTexCoord4dARB;
+   exec->MultiTexCoord4dvARB = _mesa_MultiTexCoord4dvARB;
+   exec->MultiTexCoord4fARB = _mesa_MultiTexCoord4fARB;
+   exec->MultiTexCoord4fvARB = _mesa_MultiTexCoord4fvARB;
+   exec->MultiTexCoord4iARB = _mesa_MultiTexCoord4iARB;
+   exec->MultiTexCoord4ivARB = _mesa_MultiTexCoord4ivARB;
+   exec->MultiTexCoord4sARB = _mesa_MultiTexCoord4sARB;
+   exec->MultiTexCoord4svARB = _mesa_MultiTexCoord4svARB;
+
+   /* GL_INGR_blend_func_separate */
+   exec->BlendFuncSeparateINGR = _mesa_BlendFuncSeparateINGR;
+
+   /* GL_MESA_window_pos */
+   exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;
+
+   /* GL_MESA_resize_buffers */
+   exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;
+
+   /* GL_ARB_transpose_matrix */
+   exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;
+   exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;
+   exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;
+   exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;
+}
+
+
+/**********************************************************************/
+/*****                   State update logic                       *****/
+/**********************************************************************/
+
+
+/*
+ * Since the device driver may or may not support pixel logic ops we
+ * have to make some extensive tests to determine whether or not
+ * software-implemented logic operations have to be used.
+ */
+static void update_pixel_logic( GLcontext *ctx )
+{
+   if (ctx->Visual->RGBAflag) {
+      /* RGBA mode blending w/ Logic Op */
+      if (ctx->Color.ColorLogicOpEnabled) {
+	 if (ctx->Driver.LogicOp
+             && (*ctx->Driver.LogicOp)( ctx, ctx->Color.LogicOp )) {
+	    /* Device driver can do logic, don't have to do it in software */
+	    ctx->Color.SWLogicOpEnabled = GL_FALSE;
+	 }
+	 else {
+	    /* Device driver can't do logic op so we do it in software */
+	    ctx->Color.SWLogicOpEnabled = GL_TRUE;
+	 }
+      }
+      else {
+	 /* no logic op */
+	 if (ctx->Driver.LogicOp) {
+            (void) (*ctx->Driver.LogicOp)( ctx, GL_COPY );
+         }
+	 ctx->Color.SWLogicOpEnabled = GL_FALSE;
+      }
+   }
+   else {
+      /* CI mode Logic Op */
+      if (ctx->Color.IndexLogicOpEnabled) {
+	 if (ctx->Driver.LogicOp
+             && (*ctx->Driver.LogicOp)( ctx, ctx->Color.LogicOp )) {
+	    /* Device driver can do logic, don't have to do it in software */
+	    ctx->Color.SWLogicOpEnabled = GL_FALSE;
+	 }
+	 else {
+	    /* Device driver can't do logic op so we do it in software */
+	    ctx->Color.SWLogicOpEnabled = GL_TRUE;
+	 }
+      }
+      else {
+	 /* no logic op */
+	 if (ctx->Driver.LogicOp) {
+            (void) (*ctx->Driver.LogicOp)( ctx, GL_COPY );
+         }
+	 ctx->Color.SWLogicOpEnabled = GL_FALSE;
+      }
+   }
+}
+
+
+
+/*
+ * Check if software implemented RGBA or Color Index masking is needed.
+ */
+static void update_pixel_masking( GLcontext *ctx )
+{
+   if (ctx->Visual->RGBAflag) {
+      GLuint *colorMask = (GLuint *) ctx->Color.ColorMask;
+      if (*colorMask == 0xffffffff) {
+         /* disable masking */
+         if (ctx->Driver.ColorMask) {
+            (void) (*ctx->Driver.ColorMask)( ctx, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
+         }
+         ctx->Color.SWmasking = GL_FALSE;
+      }
+      else {
+         /* Ask driver to do color masking, if it can't then
+          * do it in software
+          */
+         GLboolean red   = ctx->Color.ColorMask[RCOMP] ? GL_TRUE : GL_FALSE;
+         GLboolean green = ctx->Color.ColorMask[GCOMP] ? GL_TRUE : GL_FALSE;
+         GLboolean blue  = ctx->Color.ColorMask[BCOMP] ? GL_TRUE : GL_FALSE;
+         GLboolean alpha = ctx->Color.ColorMask[ACOMP] ? GL_TRUE : GL_FALSE;
+         if (ctx->Driver.ColorMask
+             && (*ctx->Driver.ColorMask)( ctx, red, green, blue, alpha )) {
+            ctx->Color.SWmasking = GL_FALSE;
+         }
+         else {
+            ctx->Color.SWmasking = GL_TRUE;
+         }
+      }
+   }
+   else {
+      if (ctx->Color.IndexMask==0xffffffff) {
+         /* disable masking */
+         if (ctx->Driver.IndexMask) {
+            (void) (*ctx->Driver.IndexMask)( ctx, 0xffffffff );
+         }
+         ctx->Color.SWmasking = GL_FALSE;
+      }
+      else {
+         /* Ask driver to do index masking, if it can't then
+          * do it in software
+          */
+         if (ctx->Driver.IndexMask
+             && (*ctx->Driver.IndexMask)( ctx, ctx->Color.IndexMask )) {
+            ctx->Color.SWmasking = GL_FALSE;
+         }
+         else {
+            ctx->Color.SWmasking = GL_TRUE;
+         }
+      }
+   }
+}
+
+
+static void update_fog_mode( GLcontext *ctx )
+{
+   int old_mode = ctx->FogMode;
+
+   if (ctx->Fog.Enabled) {
+      if (ctx->Texture.Enabled)
+         ctx->FogMode = FOG_FRAGMENT;
+      else if (ctx->Hint.Fog == GL_NICEST)
+         ctx->FogMode = FOG_FRAGMENT;
+      else
+         ctx->FogMode = FOG_VERTEX;
+
+      if (ctx->Driver.GetParameteri)
+         if ((ctx->Driver.GetParameteri)( ctx, DD_HAVE_HARDWARE_FOG ))
+            ctx->FogMode = FOG_FRAGMENT;
+   }
+   else {
+      ctx->FogMode = FOG_NONE;
+   }
+   
+   if (old_mode != ctx->FogMode)
+      ctx->NewState |= NEW_FOG;
+}
+
+
+/*
+ * Recompute the value of ctx->RasterMask, etc. according to
+ * the current context.
+ */
+static void update_rasterflags( GLcontext *ctx )
+{
+   ctx->RasterMask = 0;
+
+   if (ctx->Color.AlphaEnabled)		ctx->RasterMask |= ALPHATEST_BIT;
+   if (ctx->Color.BlendEnabled)		ctx->RasterMask |= BLEND_BIT;
+   if (ctx->Depth.Test)			ctx->RasterMask |= DEPTH_BIT;
+   if (ctx->FogMode==FOG_FRAGMENT)	ctx->RasterMask |= FOG_BIT;
+   if (ctx->Color.SWLogicOpEnabled)	ctx->RasterMask |= LOGIC_OP_BIT;
+   if (ctx->Scissor.Enabled)		ctx->RasterMask |= SCISSOR_BIT;
+   if (ctx->Stencil.Enabled)		ctx->RasterMask |= STENCIL_BIT;
+   if (ctx->Color.SWmasking)		ctx->RasterMask |= MASKING_BIT;
+
+   if (ctx->Visual->SoftwareAlpha && ctx->Color.ColorMask[ACOMP]
+       && ctx->Color.DrawBuffer != GL_NONE)
+      ctx->RasterMask |= ALPHABUF_BIT;
+
+   if (   ctx->Viewport.X<0
+       || ctx->Viewport.X + ctx->Viewport.Width > ctx->DrawBuffer->Width
+       || ctx->Viewport.Y<0
+       || ctx->Viewport.Y + ctx->Viewport.Height > ctx->DrawBuffer->Height) {
+      ctx->RasterMask |= WINCLIP_BIT;
+   }
+
+   /* If we're not drawing to exactly one color buffer set the
+    * MULTI_DRAW_BIT flag.  Also set it if we're drawing to no
+    * buffers or the RGBA or CI mask disables all writes.
+    */
+
+   ctx->TriangleCaps &= ~DD_MULTIDRAW;
+
+   if (ctx->Color.MultiDrawBuffer) {
+      ctx->RasterMask |= MULTI_DRAW_BIT;
+      ctx->TriangleCaps |= DD_MULTIDRAW;
+   }
+   else if (ctx->Color.DrawBuffer==GL_NONE) {
+      ctx->RasterMask |= MULTI_DRAW_BIT;
+      ctx->TriangleCaps |= DD_MULTIDRAW;
+   }
+   else if (ctx->Visual->RGBAflag && ctx->Color.ColorMask==0) {
+      /* all RGBA channels disabled */
+      ctx->RasterMask |= MULTI_DRAW_BIT;
+      ctx->TriangleCaps |= DD_MULTIDRAW;
+      ctx->Color.DrawDestMask = 0;
+   }
+   else if (!ctx->Visual->RGBAflag && ctx->Color.IndexMask==0) {
+      /* all color index bits disabled */
+      ctx->RasterMask |= MULTI_DRAW_BIT;
+      ctx->TriangleCaps |= DD_MULTIDRAW;
+      ctx->Color.DrawDestMask = 0;
+   }
+}
+
+
+void gl_print_state( const char *msg, GLuint state )
+{
+   fprintf(stderr,
+	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
+	   msg,
+	   state,
+	   (state & NEW_LIGHTING)         ? "lighting, " : "",
+	   (state & NEW_RASTER_OPS)       ? "raster-ops, " : "",
+	   (state & NEW_TEXTURING)        ? "texturing, " : "",
+	   (state & NEW_POLYGON)          ? "polygon, " : "",
+	   (state & NEW_DRVSTATE0)        ? "driver-0, " : "",
+	   (state & NEW_DRVSTATE1)        ? "driver-1, " : "",
+	   (state & NEW_DRVSTATE2)        ? "driver-2, " : "",
+	   (state & NEW_DRVSTATE3)        ? "driver-3, " : "",
+	   (state & NEW_MODELVIEW)        ? "modelview, " : "",
+	   (state & NEW_PROJECTION)       ? "projection, " : "",
+	   (state & NEW_TEXTURE_MATRIX)   ? "texture-matrix, " : "",
+	   (state & NEW_USER_CLIP)        ? "user-clip, " : "",
+	   (state & NEW_TEXTURE_ENV)      ? "texture-env, " : "",
+	   (state & NEW_CLIENT_STATE)     ? "client-state, " : "",
+	   (state & NEW_FOG)              ? "fog, " : "",
+	   (state & NEW_NORMAL_TRANSFORM) ? "normal-transform, " : "",
+	   (state & NEW_VIEWPORT)         ? "viewport, " : "",
+	   (state & NEW_TEXTURE_ENABLE)   ? "texture-enable, " : "");
+}
+
+
+void gl_print_enable_flags( const char *msg, GLuint flags )
+{
+   fprintf(stderr,
+	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s\n",
+	   msg,
+	   flags,
+	   (flags & ENABLE_TEX0)       ? "tex-0, " : "",
+	   (flags & ENABLE_TEX1)       ? "tex-1, " : "",
+	   (flags & ENABLE_LIGHT)      ? "light, " : "",
+	   (flags & ENABLE_FOG)        ? "fog, " : "",
+	   (flags & ENABLE_USERCLIP)   ? "userclip, " : "",
+	   (flags & ENABLE_TEXGEN0)    ? "tex-gen-0, " : "",
+	   (flags & ENABLE_TEXGEN1)    ? "tex-gen-1, " : "",
+	   (flags & ENABLE_TEXMAT0)    ? "tex-mat-0, " : "",
+	   (flags & ENABLE_TEXMAT1)    ? "tex-mat-1, " : "",
+	   (flags & ENABLE_NORMALIZE)  ? "normalize, " : "",
+	   (flags & ENABLE_RESCALE)    ? "rescale, " : "");
+}
+
+
+/*
+ * If ctx->NewState is non-zero then this function MUST be called before
+ * rendering any primitive.  Basically, function pointers and miscellaneous
+ * flags are updated to reflect the current state of the state machine.
+ */
+void gl_update_state( GLcontext *ctx )
+{
+   GLuint i;
+
+   if (MESA_VERBOSE & VERBOSE_STATE)
+      gl_print_state("", ctx->NewState);
+
+   if (ctx->NewState & NEW_CLIENT_STATE)
+      gl_update_client_state( ctx );
+
+   if ((ctx->NewState & NEW_TEXTURE_ENABLE) &&
+       (ctx->Enabled & ENABLE_TEX_ANY) != ctx->Texture.Enabled)
+      ctx->NewState |= NEW_TEXTURING | NEW_RASTER_OPS;
+
+   if (ctx->NewState & NEW_TEXTURE_ENV) {
+      if (ctx->Texture.Unit[0].EnvMode == ctx->Texture.Unit[0].LastEnvMode &&
+	  ctx->Texture.Unit[1].EnvMode == ctx->Texture.Unit[1].LastEnvMode)
+	 ctx->NewState &= ~NEW_TEXTURE_ENV;
+      ctx->Texture.Unit[0].LastEnvMode = ctx->Texture.Unit[0].EnvMode;
+      ctx->Texture.Unit[1].LastEnvMode = ctx->Texture.Unit[1].EnvMode;
+   }
+
+   if (ctx->NewState & NEW_TEXTURE_MATRIX) {
+      ctx->Enabled &= ~(ENABLE_TEXMAT0|ENABLE_TEXMAT1);
+
+      for (i=0; i < MAX_TEXTURE_UNITS; i++) {
+	 if (ctx->TextureMatrix[i].flags & MAT_DIRTY_ALL_OVER)
+	 {
+	    gl_matrix_analyze( &ctx->TextureMatrix[i] );
+	    ctx->TextureMatrix[i].flags &= ~MAT_DIRTY_DEPENDENTS;
+
+	    if (ctx->Texture.Unit[i].Enabled &&
+		ctx->TextureMatrix[i].type != MATRIX_IDENTITY)
+	       ctx->Enabled |= ENABLE_TEXMAT0 << i;
+	 }
+      }
+   }
+
+   if (ctx->NewState & (NEW_TEXTURING | NEW_TEXTURE_ENABLE)) {
+      ctx->Texture.NeedNormals = GL_FALSE;
+      gl_update_dirty_texobjs(ctx);
+      ctx->Enabled &= ~(ENABLE_TEXGEN0|ENABLE_TEXGEN1);
+      ctx->Texture.ReallyEnabled = 0;
+
+      for (i=0; i < MAX_TEXTURE_UNITS; i++) {
+	 if (ctx->Texture.Unit[i].Enabled) {
+	    gl_update_texture_unit( ctx, &ctx->Texture.Unit[i] );
+
+	    ctx->Texture.ReallyEnabled |=
+	       ctx->Texture.Unit[i].ReallyEnabled<<(i*4);
+
+	    if (ctx->Texture.Unit[i].GenFlags != 0) {
+	       ctx->Enabled |= ENABLE_TEXGEN0 << i;
+
+	       if (ctx->Texture.Unit[i].GenFlags & TEXGEN_NEED_NORMALS)
+	       {
+		  ctx->Texture.NeedNormals = GL_TRUE;
+		  ctx->Texture.NeedEyeCoords = GL_TRUE;
+	       }
+
+	       if (ctx->Texture.Unit[i].GenFlags & TEXGEN_NEED_EYE_COORD)
+	       {
+		  ctx->Texture.NeedEyeCoords = GL_TRUE;
+	       }
+	    }
+	 }
+      }
+
+      ctx->Texture.Enabled = ctx->Enabled & ENABLE_TEX_ANY;
+      ctx->NeedNormals = (ctx->Light.Enabled || ctx->Texture.NeedNormals);
+   }
+
+   if (ctx->NewState & (NEW_RASTER_OPS | NEW_LIGHTING | NEW_FOG)) {
+
+
+      if (ctx->NewState & NEW_RASTER_OPS) {
+	 update_pixel_logic(ctx);
+	 update_pixel_masking(ctx);
+	 update_fog_mode(ctx);
+	 update_rasterflags(ctx);
+	 if (ctx->Driver.Dither) {
+	    (*ctx->Driver.Dither)( ctx, ctx->Color.DitherFlag );
+	 }
+
+	 /* Check if incoming colors can be modified during rasterization */
+	 if (ctx->Fog.Enabled ||
+	     ctx->Texture.Enabled ||
+	     ctx->Color.BlendEnabled ||
+	     ctx->Color.SWmasking ||
+	     ctx->Color.SWLogicOpEnabled) {
+	    ctx->MutablePixels = GL_TRUE;
+	 }
+	 else {
+	    ctx->MutablePixels = GL_FALSE;
+	 }
+
+	 /* update scissor region */
+
+	 ctx->DrawBuffer->Xmin = 0;
+	 ctx->DrawBuffer->Ymin = 0;
+	 ctx->DrawBuffer->Xmax = ctx->DrawBuffer->Width-1;
+	 ctx->DrawBuffer->Ymax = ctx->DrawBuffer->Height-1;
+	 if (ctx->Scissor.Enabled) {
+	    if (ctx->Scissor.X > ctx->DrawBuffer->Xmin) {
+	       ctx->DrawBuffer->Xmin = ctx->Scissor.X;
+	    }
+	    if (ctx->Scissor.Y > ctx->DrawBuffer->Ymin) {
+	       ctx->DrawBuffer->Ymin = ctx->Scissor.Y;
+	    }
+	    if (ctx->Scissor.X + ctx->Scissor.Width - 1 < ctx->DrawBuffer->Xmax) {
+	       ctx->DrawBuffer->Xmax = ctx->Scissor.X + ctx->Scissor.Width - 1;
+	    }
+	    if (ctx->Scissor.Y + ctx->Scissor.Height - 1 < ctx->DrawBuffer->Ymax) {
+	       ctx->DrawBuffer->Ymax = ctx->Scissor.Y + ctx->Scissor.Height - 1;
+	    }
+	 }
+      }
+
+      if (ctx->NewState & NEW_LIGHTING) {
+	 ctx->TriangleCaps &= ~(DD_TRI_LIGHT_TWOSIDE|DD_LIGHTING_CULL);
+	 if (ctx->Light.Enabled) {
+	    if (ctx->Light.Model.TwoSide)
+	       ctx->TriangleCaps |= (DD_TRI_LIGHT_TWOSIDE|DD_LIGHTING_CULL);
+	    gl_update_lighting(ctx);
+	 }
+      }
+   }
+
+   if (ctx->NewState & (NEW_POLYGON | NEW_LIGHTING)) {
+
+      ctx->TriangleCaps &= ~DD_TRI_CULL_FRONT_BACK;
+
+      if (ctx->NewState & NEW_POLYGON) {
+	 /* Setup CullBits bitmask */
+	 if (ctx->Polygon.CullFlag) {
+	    ctx->backface_sign = 1;
+	    switch(ctx->Polygon.CullFaceMode) {
+	    case GL_BACK:
+	       if(ctx->Polygon.FrontFace==GL_CCW)
+		  ctx->backface_sign = -1;
+	       ctx->Polygon.CullBits = 1;
+	       break;
+	    case GL_FRONT:
+	       if(ctx->Polygon.FrontFace!=GL_CCW)
+		  ctx->backface_sign = -1;
+	       ctx->Polygon.CullBits = 2;
+	       break;
+	    default:
+	    case GL_FRONT_AND_BACK:
+	       ctx->backface_sign = 0;
+	       ctx->Polygon.CullBits = 0;
+	       ctx->TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
+	       break;
+	    }
+	 }
+	 else {
+	    ctx->Polygon.CullBits = 3;
+	    ctx->backface_sign = 0;
+	 }
+
+	 /* Any Polygon offsets enabled? */
+	 ctx->TriangleCaps &= ~DD_TRI_OFFSET;
+
+	 if (ctx->Polygon.OffsetPoint ||
+	     ctx->Polygon.OffsetLine ||
+	     ctx->Polygon.OffsetFill)
+	    ctx->TriangleCaps |= DD_TRI_OFFSET;
+
+	 /* reset Z offsets now */
+	 ctx->PointZoffset   = 0.0;
+	 ctx->LineZoffset    = 0.0;
+	 ctx->PolygonZoffset = 0.0;
+      }
+   }
+
+   if (ctx->NewState & ~(NEW_CLIENT_STATE|
+			 NEW_DRIVER_STATE|NEW_USER_CLIP|
+			 NEW_POLYGON))
+      gl_update_clipmask(ctx);
+
+   if (ctx->NewState & (NEW_LIGHTING|
+			NEW_RASTER_OPS|
+			NEW_TEXTURING|
+			NEW_TEXTURE_ENABLE|
+			NEW_TEXTURE_ENV|
+			NEW_POLYGON|
+			NEW_DRVSTATE0|
+			NEW_DRVSTATE1|
+			NEW_DRVSTATE2|
+			NEW_DRVSTATE3|
+			NEW_USER_CLIP))
+   {
+      ctx->IndirectTriangles = ctx->TriangleCaps & ~ctx->Driver.TriangleCaps;
+      ctx->IndirectTriangles |= DD_SW_RASTERIZE;
+
+      if (MESA_VERBOSE&VERBOSE_CULL)
+	 gl_print_tri_caps("initial indirect tris", ctx->IndirectTriangles);
+
+      ctx->Driver.PointsFunc = NULL;
+      ctx->Driver.LineFunc = NULL;
+      ctx->Driver.TriangleFunc = NULL;
+      ctx->Driver.QuadFunc = NULL;
+      ctx->Driver.RectFunc = NULL;
+      ctx->Driver.RenderVBClippedTab = NULL;
+      ctx->Driver.RenderVBCulledTab = NULL;
+      ctx->Driver.RenderVBRawTab = NULL;
+
+      /*
+       * Here the driver sets up all the ctx->Driver function pointers to
+       * it's specific, private functions.
+       */
+      ctx->Driver.UpdateState(ctx);
+
+      if (MESA_VERBOSE&VERBOSE_CULL)
+	 gl_print_tri_caps("indirect tris", ctx->IndirectTriangles);
+
+      /*
+       * In case the driver didn't hook in an optimized point, line or
+       * triangle function we'll now select "core/fallback" point, line
+       * and triangle functions.
+       */
+      if (ctx->IndirectTriangles & DD_SW_RASTERIZE) {
+	 gl_set_point_function(ctx);
+	 gl_set_line_function(ctx);
+	 gl_set_triangle_function(ctx);
+	 gl_set_quad_function(ctx);
+
+	 if ((ctx->IndirectTriangles & 
+	      (DD_TRI_SW_RASTERIZE|DD_QUAD_SW_RASTERIZE|DD_TRI_CULL)) ==
+	     (DD_TRI_SW_RASTERIZE|DD_QUAD_SW_RASTERIZE|DD_TRI_CULL)) 
+	    ctx->IndirectTriangles &= ~DD_TRI_CULL;
+      }
+
+      if (MESA_VERBOSE&VERBOSE_CULL)
+	 gl_print_tri_caps("indirect tris 2", ctx->IndirectTriangles);
+
+      gl_set_render_vb_function(ctx);
+   }
+
+   /* Should only be calc'd when !need_eye_coords and not culling.
+    */
+   if (ctx->NewState & (NEW_MODELVIEW|NEW_PROJECTION)) {
+      if (ctx->NewState & NEW_MODELVIEW) {
+	 gl_matrix_analyze( &ctx->ModelView );
+	 ctx->ProjectionMatrix.flags &= ~MAT_DIRTY_DEPENDENTS;
+      }
+
+      if (ctx->NewState & NEW_PROJECTION) {
+	 gl_matrix_analyze( &ctx->ProjectionMatrix );
+	 ctx->ProjectionMatrix.flags &= ~MAT_DIRTY_DEPENDENTS;
+
+	 if (ctx->Transform.AnyClip) {
+	    gl_update_userclip( ctx );
+	 }
+      }
+
+      gl_calculate_model_project_matrix( ctx );
+      ctx->ModelProjectWinMatrixUptodate = 0;
+   }
+
+   /* Figure out whether we can light in object space or not.  If we
+    * can, find the current positions of the lights in object space
+    */
+   if ((ctx->Enabled & (ENABLE_POINT_ATTEN | ENABLE_LIGHT | ENABLE_FOG |
+			ENABLE_TEXGEN0 | ENABLE_TEXGEN1)) &&
+       (ctx->NewState & (NEW_LIGHTING | 
+                         NEW_FOG |
+			 NEW_MODELVIEW | 
+			 NEW_PROJECTION |
+			 NEW_TEXTURING |
+			 NEW_RASTER_OPS |
+			 NEW_USER_CLIP)))
+   {
+      GLboolean oldcoord, oldnorm;
+
+      oldcoord = ctx->NeedEyeCoords;
+      oldnorm = ctx->NeedEyeNormals;
+
+      ctx->NeedNormals = (ctx->Light.Enabled || ctx->Texture.NeedNormals);
+      ctx->NeedEyeCoords = ((ctx->Fog.Enabled && ctx->Hint.Fog != GL_NICEST) ||
+			    ctx->Point.Attenuated);
+      ctx->NeedEyeNormals = GL_FALSE;
+
+      if (ctx->Light.Enabled) {
+	 if (ctx->Light.Flags & LIGHT_POSITIONAL) {
+	    /* Need length for attenuation */
+	    if (!TEST_MAT_FLAGS( &ctx->ModelView, MAT_FLAGS_LENGTH_PRESERVING))
+	       ctx->NeedEyeCoords = GL_TRUE;
+	 } else if (ctx->Light.NeedVertices) {
+	    /* Need angle for spot calculations */
+	    if (!TEST_MAT_FLAGS( &ctx->ModelView, MAT_FLAGS_ANGLE_PRESERVING))
+	       ctx->NeedEyeCoords = GL_TRUE;
+	 }
+	 ctx->NeedEyeNormals = ctx->NeedEyeCoords;
+      }
+      if (ctx->Texture.Enabled || ctx->RenderMode==GL_FEEDBACK) {
+	 if (ctx->Texture.NeedEyeCoords) ctx->NeedEyeCoords = GL_TRUE;
+	 if (ctx->Texture.NeedNormals)
+	    ctx->NeedNormals = ctx->NeedEyeNormals = GL_TRUE;
+      }
+
+      ctx->vb_proj_matrix = &ctx->ModelProjectMatrix;
+
+      if (ctx->NeedEyeCoords)
+	 ctx->vb_proj_matrix = &ctx->ProjectionMatrix;
+
+      if (ctx->Light.Enabled) {
+	 gl_update_lighting_function(ctx);
+
+	 if ( (ctx->NewState & NEW_LIGHTING) ||
+	      ((ctx->NewState & (NEW_MODELVIEW| NEW_PROJECTION)) &&
+	       !ctx->NeedEyeCoords) ||
+	      oldcoord != ctx->NeedEyeCoords ||
+	      oldnorm != ctx->NeedEyeNormals) {
+	    gl_compute_light_positions(ctx);
+	 }
+
+	 ctx->rescale_factor = 1.0F;
+
+	 if (ctx->ModelView.flags & (MAT_FLAG_UNIFORM_SCALE |
+				     MAT_FLAG_GENERAL_SCALE |
+				     MAT_FLAG_GENERAL_3D |
+				     MAT_FLAG_GENERAL) )
+
+	 {
+	    GLfloat *m = ctx->ModelView.inv;
+	    GLfloat f = m[2]*m[2] + m[6]*m[6] + m[10]*m[10];
+	    if (f > 1e-12 && (f-1)*(f-1) > 1e-12)
+	       ctx->rescale_factor = 1.0/GL_SQRT(f);
+	 }
+      }
+
+      gl_update_normal_transform( ctx );
+   }
+
+   gl_update_pipelines(ctx);
+   ctx->NewState = 0;
+}