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/* $Id: state.c,v 1.1 2003-02-28 11:42:04 pj Exp $ */

/*

 * Mesa 3-D graphics library

 * Version:  5.0

 *

 * Copyright (C) 1999-2002  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.

 */

/*

 * This file manages recalculation of derived values in the

 * __GLcontext.

 */

#include "glheader.h"

#include "accum.h"

#include "api_loopback.h"

#include "attrib.h"

#include "blend.h"

#include "buffers.h"

#include "clip.h"

#include "colortab.h"

#include "context.h"

#include "convolve.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 "histogram.h"

#include "light.h"

#include "lines.h"

#include "matrix.h"

#include "mmath.h"

#include "pixel.h"

#include "points.h"

#include "polygon.h"

#include "rastpos.h"

#include "state.h"

#include "stencil.h"

#include "teximage.h"

#include "texobj.h"

#include "texstate.h"

#include "mtypes.h"

#include "varray.h"

#if FEATURE_NV_vertex_program

#include "vpstate.h"

#endif

#include "math/m_matrix.h"

#include "math/m_xform.h"

static int

generic_noop(void)

{

#ifdef DEBUG

   _mesa_problem(NULL, "User called no-op dispatch function");

#endif

   return 0;

}

/*

 * Set all pointers in the given dispatch table to point to a

 * generic no-op function.

 */

void

_mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize)

{

   GLuint i;

   void **dispatch = (void **) table;

   for (i = 0; i < tableSize; i++) {

      dispatch[i] = (void *) generic_noop;

   }

}

/*

 * Initialize the given dispatch table with pointers to Mesa's

 * immediate-mode commands.

 *

 * Pointers to begin/end object commands and a few others

 * are provided via the vtxfmt interface elsewhere.

 */

void

_mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize)

{

   /* first initialize all dispatch slots to no-op */

   _mesa_init_no_op_table(exec, tableSize);

   _mesa_loopback_init_api_table( exec, GL_TRUE );

   /* load the dispatch slots we understand */

   exec->Accum = _mesa_Accum;

   exec->AlphaFunc = _mesa_AlphaFunc;

   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->ColorMask = _mesa_ColorMask;

   exec->ColorMaterial = _mesa_ColorMaterial;

   exec->CopyPixels = _mesa_CopyPixels;

   exec->CullFace = _mesa_CullFace;

   exec->DeleteLists = _mesa_DeleteLists;

   exec->DepthFunc = _mesa_DepthFunc;

   exec->DepthMask = _mesa_DepthMask;

   exec->DepthRange = _mesa_DepthRange;

   exec->Disable = _mesa_Disable;

   exec->DrawBuffer = _mesa_DrawBuffer;

   exec->DrawPixels = _mesa_DrawPixels;

   exec->Enable = _mesa_Enable;

   exec->EndList = _mesa_EndList;

   exec->FeedbackBuffer = _mesa_FeedbackBuffer;

   exec->Finish = _mesa_Finish;

   exec->Flush = _mesa_Flush;

   exec->FogCoordPointerEXT = _mesa_FogCoordPointerEXT;

   exec->Fogf = _mesa_Fogf;

   exec->Fogfv = _mesa_Fogfv;

   exec->Fogi = _mesa_Fogi;

   exec->Fogiv = _mesa_Fogiv;

   exec->FrontFace = _mesa_FrontFace;

   exec->Frustum = _mesa_Frustum;

   exec->GenLists = _mesa_GenLists;

   exec->GetBooleanv = _mesa_GetBooleanv;

   exec->GetClipPlane = _mesa_GetClipPlane;

   exec->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->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->MatrixMode = _mesa_MatrixMode;

   exec->MultMatrixd = _mesa_MultMatrixd;

   exec->MultMatrixf = _mesa_MultMatrixf;

   exec->NewList = _mesa_NewList;

   exec->Ortho = _mesa_Ortho;

   exec->PassThrough = _mesa_PassThrough;

   exec->PixelMapfv = _mesa_PixelMapfv;

   exec->PixelMapuiv = _mesa_PixelMapuiv;

   exec->PixelMapusv = _mesa_PixelMapusv;

   exec->PixelStoref = _mesa_PixelStoref;

   exec->PixelStorei = _mesa_PixelStorei;

   exec->PixelTransferf = _mesa_PixelTransferf;

   exec->PixelTransferi = _mesa_PixelTransferi;

   exec->PixelZoom = _mesa_PixelZoom;

   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->RenderMode = _mesa_RenderMode;

   exec->Rotated = _mesa_Rotated;

   exec->Rotatef = _mesa_Rotatef;

   exec->Scaled = _mesa_Scaled;

   exec->Scalef = _mesa_Scalef;

   exec->Scissor = _mesa_Scissor;

   exec->SecondaryColorPointerEXT = _mesa_SecondaryColorPointerEXT;

   exec->SelectBuffer = _mesa_SelectBuffer;

   exec->ShadeModel = _mesa_ShadeModel;

   exec->StencilFunc = _mesa_StencilFunc;

   exec->StencilMask = _mesa_StencilMask;

   exec->StencilOp = _mesa_StencilOp;

   exec->TexEnvf = _mesa_TexEnvf;

   exec->TexEnvfv = _mesa_TexEnvfv;

   exec->TexEnvi = _mesa_TexEnvi;

   exec->TexEnviv = _mesa_TexEnviv;

   exec->TexGend = _mesa_TexGend;

   exec->TexGendv = _mesa_TexGendv;

   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->Viewport = _mesa_Viewport;

   /* 1.1 */

   exec->AreTexturesResident = _mesa_AreTexturesResident;

   exec->AreTexturesResidentEXT = _mesa_AreTexturesResident;

   exec->BindTexture = _mesa_BindTexture;

   exec->ColorPointer = _mesa_ColorPointer;

   exec->CopyTexImage1D = _mesa_CopyTexImage1D;

   exec->CopyTexImage2D = _mesa_CopyTexImage2D;

   exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;

   exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;

   exec->DeleteTextures = _mesa_DeleteTextures;

   exec->DisableClientState = _mesa_DisableClientState;

   exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;

   exec->EnableClientState = _mesa_EnableClientState;

   exec->GenTextures = _mesa_GenTextures;

   exec->GenTexturesEXT = _mesa_GenTextures;

   exec->GetPointerv = _mesa_GetPointerv;

   exec->IndexPointer = _mesa_IndexPointer;

   exec->InterleavedArrays = _mesa_InterleavedArrays;

   exec->IsTexture = _mesa_IsTexture;

   exec->IsTextureEXT = _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->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->GetColorTableEXT = _mesa_GetColorTable;

   exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;

   exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;

   exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;

   exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;

   exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;

   exec->GetConvolutionFilterEXT = _mesa_GetConvolutionFilter;

   exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;

   exec->GetConvolutionParameterfvEXT = _mesa_GetConvolutionParameterfv;

   exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;

   exec->GetConvolutionParameterivEXT = _mesa_GetConvolutionParameteriv;

   exec->GetHistogram = _mesa_GetHistogram;

   exec->GetHistogramEXT = _mesa_GetHistogram;

   exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;

   exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;

   exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;

   exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;

   exec->GetMinmax = _mesa_GetMinmax;

   exec->GetMinmaxEXT = _mesa_GetMinmax;

   exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;

   exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;

   exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;

   exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;

   exec->GetSeparableFilter = _mesa_GetSeparableFilter;

   exec->GetSeparableFilterEXT = _mesa_GetSeparableFilter;

   exec->Histogram = _mesa_Histogram;

   exec->Minmax = _mesa_Minmax;

   exec->ResetHistogram = _mesa_ResetHistogram;

   exec->ResetMinmax = _mesa_ResetMinmax;

   exec->SeparableFilter2D = _mesa_SeparableFilter2D;

   /* 2. GL_EXT_blend_color */

#if 0

   exec->BlendColorEXT = _mesa_BlendColorEXT;

#endif

   /* 3. GL_EXT_polygon_offset */

   exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;

   /* 6. GL_EXT_texture3d */

#if 0

   exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D;

   exec->TexImage3DEXT = _mesa_TexImage3DEXT;

   exec->TexSubImage3DEXT = _mesa_TexSubImage3D;

#endif

   /* 11. GL_EXT_histogram */

   exec->GetHistogramEXT = _mesa_GetHistogram;

   exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;

   exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;

   exec->GetMinmaxEXT = _mesa_GetMinmax;

   exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;

   exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;

   /* ?. GL_SGIX_pixel_texture */

   exec->PixelTexGenSGIX = _mesa_PixelTexGenSGIX;

   /* 15. GL_SGIS_pixel_texture */

   exec->PixelTexGenParameteriSGIS = _mesa_PixelTexGenParameteriSGIS;

   exec->PixelTexGenParameterivSGIS = _mesa_PixelTexGenParameterivSGIS;

   exec->PixelTexGenParameterfSGIS = _mesa_PixelTexGenParameterfSGIS;

   exec->PixelTexGenParameterfvSGIS = _mesa_PixelTexGenParameterfvSGIS;

   exec->GetPixelTexGenParameterivSGIS = _mesa_GetPixelTexGenParameterivSGIS;

   exec->GetPixelTexGenParameterfvSGIS = _mesa_GetPixelTexGenParameterfvSGIS;

   /* 30. GL_EXT_vertex_array */

   exec->ColorPointerEXT = _mesa_ColorPointerEXT;

   exec->EdgeFlagPointerEXT = _mesa_EdgeFlagPointerEXT;

   exec->IndexPointerEXT = _mesa_IndexPointerEXT;

   exec->NormalPointerEXT = _mesa_NormalPointerEXT;

   exec->TexCoordPointerEXT = _mesa_TexCoordPointerEXT;

   exec->VertexPointerEXT = _mesa_VertexPointerEXT;

   /* 37. GL_EXT_blend_minmax */

#if 0

   exec->BlendEquationEXT = _mesa_BlendEquationEXT;

#endif

   /* 54. GL_EXT_point_parameters */

   exec->PointParameterfEXT = _mesa_PointParameterfEXT;

   exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;

   /* 78. GL_EXT_paletted_texture */

#if 0

   exec->ColorTableEXT = _mesa_ColorTableEXT;

   exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;

#endif

   exec->GetColorTableEXT = _mesa_GetColorTable;

   exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;

   exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;

   /* 97. GL_EXT_compiled_vertex_array */

   exec->LockArraysEXT = _mesa_LockArraysEXT;

   exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;

   /* 148. GL_EXT_multi_draw_arrays */

   exec->MultiDrawArraysEXT = _mesa_MultiDrawArraysEXT;

   exec->MultiDrawElementsEXT = _mesa_MultiDrawElementsEXT;

   /* 173. GL_INGR_blend_func_separate */

   exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT;

   /* 196. GL_MESA_resize_buffers */

   exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;

   /* 197. GL_MESA_window_pos */

   exec->WindowPos2dMESA = _mesa_WindowPos2dMESA;

   exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA;

   exec->WindowPos2fMESA = _mesa_WindowPos2fMESA;

   exec->WindowPos2fvMESA = _mesa_WindowPos2fvMESA;

   exec->WindowPos2iMESA = _mesa_WindowPos2iMESA;

   exec->WindowPos2ivMESA = _mesa_WindowPos2ivMESA;

   exec->WindowPos2sMESA = _mesa_WindowPos2sMESA;

   exec->WindowPos2svMESA = _mesa_WindowPos2svMESA;

   exec->WindowPos3dMESA = _mesa_WindowPos3dMESA;

   exec->WindowPos3dvMESA = _mesa_WindowPos3dvMESA;

   exec->WindowPos3fMESA = _mesa_WindowPos3fMESA;

   exec->WindowPos3fvMESA = _mesa_WindowPos3fvMESA;

   exec->WindowPos3iMESA = _mesa_WindowPos3iMESA;

   exec->WindowPos3ivMESA = _mesa_WindowPos3ivMESA;

   exec->WindowPos3sMESA = _mesa_WindowPos3sMESA;

   exec->WindowPos3svMESA = _mesa_WindowPos3svMESA;

   exec->WindowPos4dMESA = _mesa_WindowPos4dMESA;

   exec->WindowPos4dvMESA = _mesa_WindowPos4dvMESA;

   exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;

   exec->WindowPos4fvMESA = _mesa_WindowPos4fvMESA;

   exec->WindowPos4iMESA = _mesa_WindowPos4iMESA;

   exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA;

   exec->WindowPos4sMESA = _mesa_WindowPos4sMESA;

   exec->WindowPos4svMESA = _mesa_WindowPos4svMESA;

   /* 233. GL_NV_vertex_program */

#if FEATURE_NV_vertex_program

   exec->BindProgramNV = _mesa_BindProgramNV;

   exec->DeleteProgramsNV = _mesa_DeleteProgramsNV;

   exec->ExecuteProgramNV = _mesa_ExecuteProgramNV;

   exec->GenProgramsNV = _mesa_GenProgramsNV;

   exec->AreProgramsResidentNV = _mesa_AreProgramsResidentNV;

   exec->RequestResidentProgramsNV = _mesa_RequestResidentProgramsNV;

   exec->GetProgramParameterfvNV = _mesa_GetProgramParameterfvNV;

   exec->GetProgramParameterdvNV = _mesa_GetProgramParameterdvNV;

   exec->GetProgramivNV = _mesa_GetProgramivNV;

   exec->GetProgramStringNV = _mesa_GetProgramStringNV;

   exec->GetTrackMatrixivNV = _mesa_GetTrackMatrixivNV;

   exec->GetVertexAttribdvNV = _mesa_GetVertexAttribdvNV;

   exec->GetVertexAttribfvNV = _mesa_GetVertexAttribfvNV;

   exec->GetVertexAttribivNV = _mesa_GetVertexAttribivNV;

   exec->GetVertexAttribPointervNV = _mesa_GetVertexAttribPointervNV;

   exec->IsProgramNV = _mesa_IsProgramNV;

   exec->LoadProgramNV = _mesa_LoadProgramNV;

   exec->ProgramParameter4dNV = _mesa_ProgramParameter4dNV;

   exec->ProgramParameter4dvNV = _mesa_ProgramParameter4dvNV;

   exec->ProgramParameter4fNV = _mesa_ProgramParameter4fNV;

   exec->ProgramParameter4fvNV = _mesa_ProgramParameter4fvNV;

   exec->ProgramParameters4dvNV = _mesa_ProgramParameters4dvNV;

   exec->ProgramParameters4fvNV = _mesa_ProgramParameters4fvNV;

   exec->TrackMatrixNV = _mesa_TrackMatrixNV;

   exec->VertexAttribPointerNV = _mesa_VertexAttribPointerNV;

#endif

   /* 262. GL_NV_point_sprite */

   exec->PointParameteriNV = _mesa_PointParameteriNV;

   exec->PointParameterivNV = _mesa_PointParameterivNV;

   /* 268. GL_EXT_stencil_two_side */

   exec->ActiveStencilFaceEXT = _mesa_ActiveStencilFaceEXT;

   /* ARB 1. GL_ARB_multitexture */

   exec->ActiveTextureARB = _mesa_ActiveTextureARB;

   exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;

   /* ARB 3. GL_ARB_transpose_matrix */

   exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;

   exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;

   exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;

   exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;

   /* ARB 5. GL_ARB_multisample */

   exec->SampleCoverageARB = _mesa_SampleCoverageARB;

   /* ARB 12. GL_ARB_texture_compression */

   exec->CompressedTexImage3DARB = _mesa_CompressedTexImage3DARB;

   exec->CompressedTexImage2DARB = _mesa_CompressedTexImage2DARB;

   exec->CompressedTexImage1DARB = _mesa_CompressedTexImage1DARB;

   exec->CompressedTexSubImage3DARB = _mesa_CompressedTexSubImage3DARB;

   exec->CompressedTexSubImage2DARB = _mesa_CompressedTexSubImage2DARB;

   exec->CompressedTexSubImage1DARB = _mesa_CompressedTexSubImage1DARB;

   exec->GetCompressedTexImageARB = _mesa_GetCompressedTexImageARB;

   /* ARB 14. GL_ARB_point_parameters */

   /* reuse EXT_point_parameters functions */

}

/**********************************************************************/

/*****                   State update logic                       *****/

/**********************************************************************/

/*

 * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET

 * in ctx->_TriangleCaps if needed.

 */

static void

update_polygon( GLcontext *ctx )

{

   ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);

   if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)

      ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;

   /* Any Polygon offsets enabled? */

   if (ctx->Polygon.OffsetPoint ||

       ctx->Polygon.OffsetLine ||

       ctx->Polygon.OffsetFill) {

      ctx->_TriangleCaps |= DD_TRI_OFFSET;

   }

}

static void

calculate_model_project_matrix( GLcontext *ctx )

{

   _math_matrix_mul_matrix( &ctx->_ModelProjectMatrix,

                            ctx->ProjectionMatrixStack.Top,

                            ctx->ModelviewMatrixStack.Top );

   _math_matrix_analyse( &ctx->_ModelProjectMatrix );

}

static void

update_modelview_scale( GLcontext *ctx )

{

   ctx->_ModelViewInvScale = 1.0F;

   if (ctx->ModelviewMatrixStack.Top->flags & (MAT_FLAG_UNIFORM_SCALE |

                               MAT_FLAG_GENERAL_SCALE |

                               MAT_FLAG_GENERAL_3D |

                               MAT_FLAG_GENERAL) ) {

      const GLfloat *m = ctx->ModelviewMatrixStack.Top->inv;

      GLfloat f = m[2] * m[2] + m[6] * m[6] + m[10] * m[10];

      if (f < 1e-12) f = 1.0;

      if (ctx->_NeedEyeCoords)

         ctx->_ModelViewInvScale = (GLfloat) (1.0/GL_SQRT(f));

      else

         ctx->_ModelViewInvScale = (GLfloat) GL_SQRT(f);

   }

}

/* Bring uptodate any state that relies on _NeedEyeCoords.

 */

static void

update_tnl_spaces( GLcontext *ctx, GLuint oldneedeyecoords )

{

   /* Check if the truth-value interpretations of the bitfields have

    * changed:

    */

   if ((oldneedeyecoords == 0) != (ctx->_NeedEyeCoords == 0)) {

      /* Recalculate all state that depends on _NeedEyeCoords.

       */

      update_modelview_scale(ctx);

      _mesa_compute_light_positions( ctx );

      if (ctx->Driver.LightingSpaceChange)

         ctx->Driver.LightingSpaceChange( ctx );

   }

   else {

      GLuint new_state = ctx->NewState;

      /* Recalculate that same state only if it has been invalidated

       * by other statechanges.

       */

      if (new_state & _NEW_MODELVIEW)

         update_modelview_scale(ctx);

      if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW))

         _mesa_compute_light_positions( ctx );

   }

}

static void

update_drawbuffer( GLcontext *ctx )

{

   ctx->DrawBuffer->_Xmin = 0;

   ctx->DrawBuffer->_Ymin = 0;

   ctx->DrawBuffer->_Xmax = ctx->DrawBuffer->Width;

   ctx->DrawBuffer->_Ymax = ctx->DrawBuffer->Height;

   if (ctx->Scissor.Enabled) {

      if (ctx->Scissor.X > ctx->DrawBuffer->_Xmin) {

         ctx->DrawBuffer->_Xmin = ctx->Scissor.X;

      }

      if (ctx->Scissor.Y > ctx->DrawBuffer->_Ymin) {

         ctx->DrawBuffer->_Ymin = ctx->Scissor.Y;

      }

      if (ctx->Scissor.X + ctx->Scissor.Width < ctx->DrawBuffer->_Xmax) {

         ctx->DrawBuffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width;

      }

      if (ctx->Scissor.Y + ctx->Scissor.Height < ctx->DrawBuffer->_Ymax) {

         ctx->DrawBuffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height;

      }

   }

}

/* NOTE: This routine references Tranform attribute values to compute

 * userclip positions in clip space, but is only called on

 * _NEW_PROJECTION.  The _mesa_ClipPlane() function keeps these values

 * up to date across changes to the Transform attributes.

 */

static void

update_projection( GLcontext *ctx )

{

   _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );

   /* Recompute clip plane positions in clipspace.  This is also done

    * in _mesa_ClipPlane().

    */

   if (ctx->Transform.ClipPlanesEnabled) {

      GLuint p;

      for (p = 0; p < ctx->Const.MaxClipPlanes; p++) {

         if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {

            _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],

                                 ctx->Transform.EyeUserPlane[p],

                                 ctx->ProjectionMatrixStack.Top->inv );

         }

      }

   }

}

/*

 * Return a bitmask of IMAGE_*_BIT flags which to indicate which

 * pixel transfer operations are enabled.

 */

static void

update_image_transfer_state(GLcontext *ctx)

{

   GLuint mask = 0;

   if (ctx->Pixel.RedScale   != 1.0F || ctx->Pixel.RedBias   != 0.0F ||

       ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F ||

       ctx->Pixel.BlueScale  != 1.0F || ctx->Pixel.BlueBias  != 0.0F ||

       ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F)

      mask |= IMAGE_SCALE_BIAS_BIT;

   if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset)

      mask |= IMAGE_SHIFT_OFFSET_BIT;

   if (ctx->Pixel.MapColorFlag)

      mask |= IMAGE_MAP_COLOR_BIT;

   if (ctx->Pixel.ColorTableEnabled)

      mask |= IMAGE_COLOR_TABLE_BIT;

   if (ctx->Pixel.Convolution1DEnabled ||

       ctx->Pixel.Convolution2DEnabled ||

       ctx->Pixel.Separable2DEnabled) {

      mask |= IMAGE_CONVOLUTION_BIT;

      if (ctx->Pixel.PostConvolutionScale[0] != 1.0F ||

          ctx->Pixel.PostConvolutionScale[1] != 1.0F ||

          ctx->Pixel.PostConvolutionScale[2] != 1.0F ||

          ctx->Pixel.PostConvolutionScale[3] != 1.0F ||

          ctx->Pixel.PostConvolutionBias[0] != 0.0F ||

          ctx->Pixel.PostConvolutionBias[1] != 0.0F ||

          ctx->Pixel.PostConvolutionBias[2] != 0.0F ||

          ctx->Pixel.PostConvolutionBias[3] != 0.0F) {

         mask |= IMAGE_POST_CONVOLUTION_SCALE_BIAS;

      }

   }

   if (ctx->Pixel.PostConvolutionColorTableEnabled)

      mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT;

   if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY ||

       ctx->Pixel.PostColorMatrixScale[0] != 1.0F ||

       ctx->Pixel.PostColorMatrixBias[0]  != 0.0F ||

       ctx->Pixel.PostColorMatrixScale[1] != 1.0F ||

       ctx->Pixel.PostColorMatrixBias[1]  != 0.0F ||

       ctx->Pixel.PostColorMatrixScale[2] != 1.0F ||

       ctx->Pixel.PostColorMatrixBias[2]  != 0.0F ||

       ctx->Pixel.PostColorMatrixScale[3] != 1.0F ||

       ctx->Pixel.PostColorMatrixBias[3]  != 0.0F)

      mask |= IMAGE_COLOR_MATRIX_BIT;

   if (ctx->Pixel.PostColorMatrixColorTableEnabled)

      mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT;

   if (ctx->Pixel.HistogramEnabled)

      mask |= IMAGE_HISTOGRAM_BIT;

   if (ctx->Pixel.MinMaxEnabled)

      mask |= IMAGE_MIN_MAX_BIT;

   ctx->_ImageTransferState = mask;

}

/* Note: This routine refers to derived texture attribute values to

 * compute the ENABLE_TEXMAT flags, but is only called on

 * _NEW_TEXTURE_MATRIX.  On changes to _NEW_TEXTURE, the ENABLE_TEXMAT

 * flags are updated by _mesa_update_textures(), below.

 *

 * If both TEXTURE and TEXTURE_MATRIX change at once, these values

 * will be computed twice.

 */

static void

update_texture_matrices( GLcontext *ctx )

{

   GLuint i;

   ctx->Texture._TexMatEnabled = 0;

   for (i=0; i < ctx->Const.MaxTextureUnits; i++) {

      if (ctx->TextureMatrixStack[i].Top->flags & MAT_DIRTY) {

         _math_matrix_analyse( ctx->TextureMatrixStack[i].Top );

         if (ctx->Texture.Unit[i]._ReallyEnabled &&

             ctx->TextureMatrixStack[i].Top->type != MATRIX_IDENTITY)

            ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i);

         if (ctx->Driver.TextureMatrix)

            ctx->Driver.TextureMatrix( ctx, i, ctx->TextureMatrixStack[i].Top);

      }

   }

}

/* Note: This routine refers to derived texture matrix values to

 * compute the ENABLE_TEXMAT flags, but is only called on

 * _NEW_TEXTURE.  On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT

 * flags are updated by _mesa_update_texture_matrices, above.

 *

 * If both TEXTURE and TEXTURE_MATRIX change at once, these values

 * will be computed twice.

 */

static void

update_texture_state( GLcontext *ctx )

{

   GLuint unit;

   ctx->Texture._EnabledUnits = 0;

   ctx->Texture._GenFlags = 0;

   ctx->_NeedNormals &= ~NEED_NORMALS_TEXGEN;

   ctx->_NeedEyeCoords &= ~NEED_EYE_TEXGEN;

   ctx->Texture._TexMatEnabled = 0;

   ctx->Texture._TexGenEnabled = 0;

   /* Update texture unit state.

    */

   for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {

      struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];

      texUnit->_ReallyEnabled = 0;

      texUnit->_GenFlags = 0;

      if (!texUnit->Enabled)

         continue;

      /* Look for the highest-priority texture target that's enabled and

       * complete.  That's the one we'll use for texturing.

       */

      if (texUnit->Enabled & TEXTURE_CUBE_BIT) {

         struct gl_texture_object *texObj = texUnit->CurrentCubeMap;

         if (!texObj->Complete) {

            _mesa_test_texobj_completeness(ctx, texObj);

         }

         if (texObj->Complete) {

            texUnit->_ReallyEnabled = TEXTURE_CUBE_BIT;

            texUnit->_Current = texObj;

         }

      }

      if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_3D_BIT)) {

         struct gl_texture_object *texObj = texUnit->Current3D;