src/mesa/main/state.c

   1 /* $Id: state.c,v 1.64 2001/03/29 21:16:25 keithw Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27
  28 /*
  29  * This file manages recalculation of derived values in the
  30  * __GLcontext.
  31  */
  32
  33
  34 #ifdef PC_HEADER
  35 #include "all.h"
  36 #else
  37 #include "glheader.h"
  38 #include "accum.h"
  39 #include "alpha.h"
  40 #include "api_loopback.h"
  41 #include "attrib.h"
  42 #include "bitmap.h"
  43 #include "blend.h"
  44 #include "buffers.h"
  45 #include "clip.h"
  46 #include "colortab.h"
  47 #include "context.h"
  48 #include "convolve.h"
  49 #include "copypix.h"
  50 #include "depth.h"
  51 #include "dlist.h"
  52 #include "drawpix.h"
  53 #include "enable.h"
  54 #include "eval.h"
  55 #include "get.h"
  56 #include "feedback.h"
  57 #include "fog.h"
  58 #include "hint.h"
  59 #include "histogram.h"
  60 #include "light.h"
  61 #include "lines.h"
  62 #include "logic.h"
  63 #include "masking.h"
  64 #include "matrix.h"
  65 #include "mmath.h"
  66 #include "pixel.h"
  67 #include "pixeltex.h"
  68 #include "points.h"
  69 #include "polygon.h"
  70 #include "rastpos.h"
  71 #include "readpix.h"
  72 #include "scissor.h"
  73 #include "state.h"
  74 #include "stencil.h"
  75 #include "teximage.h"
  76 #include "texobj.h"
  77 #include "texstate.h"
  78 #include "mtypes.h"
  79 #include "varray.h"
  80 #include "winpos.h"
  81
  82 #include "math/m_matrix.h"
  83 #include "math/m_xform.h"
  84 #endif
  85
  86
  87 static int
  88 generic_noop(void)
  89 {
  90 #ifdef DEBUG
  91    _mesa_problem(NULL, "undefined function dispatch");
  92 #endif
  93    return 0;
  94 }
  95
  96
  97 /*
  98  * Set all pointers in the given dispatch table to point to a
  99  * generic no-op function.
 100  */
 101 void
 102 _mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize)
 103 {
 104    GLuint i;
 105    void **dispatch = (void **) table;
 106    for (i = 0; i < tableSize; i++) {
 107       dispatch[i] = (void *) generic_noop;
 108    }
 109 }
 110
 111
 112
 113 /*
 114  * Initialize the given dispatch table with pointers to Mesa's
 115  * immediate-mode commands.
 116  *
 117  * Pointers to begin/end object commands and a few others
 118  * are provided via the vtxfmt interface elsewhere.
 119  */
 120 void
 121 _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize)
 122 {
 123    /* first initialize all dispatch slots to no-op */
 124    _mesa_init_no_op_table(exec, tableSize);
 125
 126    _mesa_loopback_init_api_table( exec, GL_FALSE );
 127
 128    /* load the dispatch slots we understand */
 129    exec->Accum = _mesa_Accum;
 130    exec->AlphaFunc = _mesa_AlphaFunc;
 131    exec->Bitmap = _mesa_Bitmap;
 132    exec->BlendFunc = _mesa_BlendFunc;
 133    exec->CallList = _mesa_CallList;
 134    exec->CallLists = _mesa_CallLists;
 135    exec->Clear = _mesa_Clear;
 136    exec->ClearAccum = _mesa_ClearAccum;
 137    exec->ClearColor = _mesa_ClearColor;
 138    exec->ClearDepth = _mesa_ClearDepth;
 139    exec->ClearIndex = _mesa_ClearIndex;
 140    exec->ClearStencil = _mesa_ClearStencil;
 141    exec->ClipPlane = _mesa_ClipPlane;
 142    exec->ColorMask = _mesa_ColorMask;
 143    exec->ColorMaterial = _mesa_ColorMaterial;
 144    exec->CopyPixels = _mesa_CopyPixels;
 145    exec->CullFace = _mesa_CullFace;
 146    exec->DeleteLists = _mesa_DeleteLists;
 147    exec->DepthFunc = _mesa_DepthFunc;
 148    exec->DepthMask = _mesa_DepthMask;
 149    exec->DepthRange = _mesa_DepthRange;
 150    exec->Disable = _mesa_Disable;
 151    exec->DrawBuffer = _mesa_DrawBuffer;
 152    exec->DrawPixels = _mesa_DrawPixels;
 153    exec->Enable = _mesa_Enable;
 154    exec->EndList = _mesa_EndList;
 155    exec->FeedbackBuffer = _mesa_FeedbackBuffer;
 156    exec->Finish = _mesa_Finish;
 157    exec->Flush = _mesa_Flush;
 158    exec->FogCoordPointerEXT = _mesa_FogCoordPointerEXT;
 159    exec->Fogf = _mesa_Fogf;
 160    exec->Fogfv = _mesa_Fogfv;
 161    exec->Fogi = _mesa_Fogi;
 162    exec->Fogiv = _mesa_Fogiv;
 163    exec->FrontFace = _mesa_FrontFace;
 164    exec->Frustum = _mesa_Frustum;
 165    exec->GenLists = _mesa_GenLists;
 166    exec->GetBooleanv = _mesa_GetBooleanv;
 167    exec->GetClipPlane = _mesa_GetClipPlane;
 168    exec->GetDoublev = _mesa_GetDoublev;
 169    exec->GetError = _mesa_GetError;
 170    exec->GetFloatv = _mesa_GetFloatv;
 171    exec->GetIntegerv = _mesa_GetIntegerv;
 172    exec->GetLightfv = _mesa_GetLightfv;
 173    exec->GetLightiv = _mesa_GetLightiv;
 174    exec->GetMapdv = _mesa_GetMapdv;
 175    exec->GetMapfv = _mesa_GetMapfv;
 176    exec->GetMapiv = _mesa_GetMapiv;
 177    exec->GetMaterialfv = _mesa_GetMaterialfv;
 178    exec->GetMaterialiv = _mesa_GetMaterialiv;
 179    exec->GetPixelMapfv = _mesa_GetPixelMapfv;
 180    exec->GetPixelMapuiv = _mesa_GetPixelMapuiv;
 181    exec->GetPixelMapusv = _mesa_GetPixelMapusv;
 182    exec->GetPolygonStipple = _mesa_GetPolygonStipple;
 183    exec->GetString = _mesa_GetString;
 184    exec->GetTexEnvfv = _mesa_GetTexEnvfv;
 185    exec->GetTexEnviv = _mesa_GetTexEnviv;
 186    exec->GetTexGendv = _mesa_GetTexGendv;
 187    exec->GetTexGenfv = _mesa_GetTexGenfv;
 188    exec->GetTexGeniv = _mesa_GetTexGeniv;
 189    exec->GetTexImage = _mesa_GetTexImage;
 190    exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv;
 191    exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv;
 192    exec->GetTexParameterfv = _mesa_GetTexParameterfv;
 193    exec->GetTexParameteriv = _mesa_GetTexParameteriv;
 194    exec->Hint = _mesa_Hint;
 195    exec->IndexMask = _mesa_IndexMask;
 196    exec->InitNames = _mesa_InitNames;
 197    exec->IsEnabled = _mesa_IsEnabled;
 198    exec->IsList = _mesa_IsList;
 199    exec->LightModelf = _mesa_LightModelf;
 200    exec->LightModelfv = _mesa_LightModelfv;
 201    exec->LightModeli = _mesa_LightModeli;
 202    exec->LightModeliv = _mesa_LightModeliv;
 203    exec->Lightf = _mesa_Lightf;
 204    exec->Lightfv = _mesa_Lightfv;
 205    exec->Lighti = _mesa_Lighti;
 206    exec->Lightiv = _mesa_Lightiv;
 207    exec->LineStipple = _mesa_LineStipple;
 208    exec->LineWidth = _mesa_LineWidth;
 209    exec->ListBase = _mesa_ListBase;
 210    exec->LoadIdentity = _mesa_LoadIdentity;
 211    exec->LoadMatrixd = _mesa_LoadMatrixd;
 212    exec->LoadMatrixf = _mesa_LoadMatrixf;
 213    exec->LoadName = _mesa_LoadName;
 214    exec->LogicOp = _mesa_LogicOp;
 215    exec->Map1d = _mesa_Map1d;
 216    exec->Map1f = _mesa_Map1f;
 217    exec->Map2d = _mesa_Map2d;
 218    exec->Map2f = _mesa_Map2f;
 219    exec->MapGrid1d = _mesa_MapGrid1d;
 220    exec->MapGrid1f = _mesa_MapGrid1f;
 221    exec->MapGrid2d = _mesa_MapGrid2d;
 222    exec->MapGrid2f = _mesa_MapGrid2f;
 223    exec->MatrixMode = _mesa_MatrixMode;
 224    exec->MultMatrixd = _mesa_MultMatrixd;
 225    exec->MultMatrixf = _mesa_MultMatrixf;
 226    exec->NewList = _mesa_NewList;
 227    exec->Ortho = _mesa_Ortho;
 228    exec->PassThrough = _mesa_PassThrough;
 229    exec->PixelMapfv = _mesa_PixelMapfv;
 230    exec->PixelMapuiv = _mesa_PixelMapuiv;
 231    exec->PixelMapusv = _mesa_PixelMapusv;
 232    exec->PixelStoref = _mesa_PixelStoref;
 233    exec->PixelStorei = _mesa_PixelStorei;
 234    exec->PixelTransferf = _mesa_PixelTransferf;
 235    exec->PixelTransferi = _mesa_PixelTransferi;
 236    exec->PixelZoom = _mesa_PixelZoom;
 237    exec->PointSize = _mesa_PointSize;
 238    exec->PolygonMode = _mesa_PolygonMode;
 239    exec->PolygonOffset = _mesa_PolygonOffset;
 240    exec->PolygonStipple = _mesa_PolygonStipple;
 241    exec->PopAttrib = _mesa_PopAttrib;
 242    exec->PopMatrix = _mesa_PopMatrix;
 243    exec->PopName = _mesa_PopName;
 244    exec->PushAttrib = _mesa_PushAttrib;
 245    exec->PushMatrix = _mesa_PushMatrix;
 246    exec->PushName = _mesa_PushName;
 247    exec->RasterPos2d = _mesa_RasterPos2d;
 248    exec->RasterPos2dv = _mesa_RasterPos2dv;
 249    exec->RasterPos2f = _mesa_RasterPos2f;
 250    exec->RasterPos2fv = _mesa_RasterPos2fv;
 251    exec->RasterPos2i = _mesa_RasterPos2i;
 252    exec->RasterPos2iv = _mesa_RasterPos2iv;
 253    exec->RasterPos2s = _mesa_RasterPos2s;
 254    exec->RasterPos2sv = _mesa_RasterPos2sv;
 255    exec->RasterPos3d = _mesa_RasterPos3d;
 256    exec->RasterPos3dv = _mesa_RasterPos3dv;
 257    exec->RasterPos3f = _mesa_RasterPos3f;
 258    exec->RasterPos3fv = _mesa_RasterPos3fv;
 259    exec->RasterPos3i = _mesa_RasterPos3i;
 260    exec->RasterPos3iv = _mesa_RasterPos3iv;
 261    exec->RasterPos3s = _mesa_RasterPos3s;
 262    exec->RasterPos3sv = _mesa_RasterPos3sv;
 263    exec->RasterPos4d = _mesa_RasterPos4d;
 264    exec->RasterPos4dv = _mesa_RasterPos4dv;
 265    exec->RasterPos4f = _mesa_RasterPos4f;
 266    exec->RasterPos4fv = _mesa_RasterPos4fv;
 267    exec->RasterPos4i = _mesa_RasterPos4i;
 268    exec->RasterPos4iv = _mesa_RasterPos4iv;
 269    exec->RasterPos4s = _mesa_RasterPos4s;
 270    exec->RasterPos4sv = _mesa_RasterPos4sv;
 271    exec->ReadBuffer = _mesa_ReadBuffer;
 272    exec->ReadPixels = _mesa_ReadPixels;
 273    exec->RenderMode = _mesa_RenderMode;
 274    exec->Rotated = _mesa_Rotated;
 275    exec->Rotatef = _mesa_Rotatef;
 276    exec->Scaled = _mesa_Scaled;
 277    exec->Scalef = _mesa_Scalef;
 278    exec->Scissor = _mesa_Scissor;
 279    exec->SecondaryColorPointerEXT = _mesa_SecondaryColorPointerEXT;
 280    exec->SelectBuffer = _mesa_SelectBuffer;
 281    exec->ShadeModel = _mesa_ShadeModel;
 282    exec->StencilFunc = _mesa_StencilFunc;
 283    exec->StencilMask = _mesa_StencilMask;
 284    exec->StencilOp = _mesa_StencilOp;
 285    exec->TexEnvf = _mesa_TexEnvf;
 286    exec->TexEnvfv = _mesa_TexEnvfv;
 287    exec->TexEnvi = _mesa_TexEnvi;
 288    exec->TexEnviv = _mesa_TexEnviv;
 289    exec->TexGend = _mesa_TexGend;
 290    exec->TexGendv = _mesa_TexGendv;
 291    exec->TexGenf = _mesa_TexGenf;
 292    exec->TexGenfv = _mesa_TexGenfv;
 293    exec->TexGeni = _mesa_TexGeni;
 294    exec->TexGeniv = _mesa_TexGeniv;
 295    exec->TexImage1D = _mesa_TexImage1D;
 296    exec->TexImage2D = _mesa_TexImage2D;
 297    exec->TexParameterf = _mesa_TexParameterf;
 298    exec->TexParameterfv = _mesa_TexParameterfv;
 299    exec->TexParameteri = _mesa_TexParameteri;
 300    exec->TexParameteriv = _mesa_TexParameteriv;
 301    exec->Translated = _mesa_Translated;
 302    exec->Translatef = _mesa_Translatef;
 303    exec->Viewport = _mesa_Viewport;
 304
 305    /* 1.1 */
 306    exec->AreTexturesResident = _mesa_AreTexturesResident;
 307    exec->BindTexture = _mesa_BindTexture;
 308    exec->ColorPointer = _mesa_ColorPointer;
 309    exec->CopyTexImage1D = _mesa_CopyTexImage1D;
 310    exec->CopyTexImage2D = _mesa_CopyTexImage2D;
 311    exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;
 312    exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;
 313    exec->DeleteTextures = _mesa_DeleteTextures;
 314    exec->DisableClientState = _mesa_DisableClientState;
 315    exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;
 316    exec->EnableClientState = _mesa_EnableClientState;
 317    exec->GenTextures = _mesa_GenTextures;
 318    exec->GetPointerv = _mesa_GetPointerv;
 319    exec->IndexPointer = _mesa_IndexPointer;
 320    exec->InterleavedArrays = _mesa_InterleavedArrays;
 321    exec->IsTexture = _mesa_IsTexture;
 322    exec->NormalPointer = _mesa_NormalPointer;
 323    exec->PopClientAttrib = _mesa_PopClientAttrib;
 324    exec->PrioritizeTextures = _mesa_PrioritizeTextures;
 325    exec->PushClientAttrib = _mesa_PushClientAttrib;
 326    exec->TexCoordPointer = _mesa_TexCoordPointer;
 327    exec->TexSubImage1D = _mesa_TexSubImage1D;
 328    exec->TexSubImage2D = _mesa_TexSubImage2D;
 329    exec->VertexPointer = _mesa_VertexPointer;
 330
 331    /* 1.2 */
 332    exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D;
 333    exec->TexImage3D = _mesa_TexImage3D;
 334    exec->TexSubImage3D = _mesa_TexSubImage3D;
 335
 336    /* OpenGL 1.2  GL_ARB_imaging */
 337    exec->BlendColor = _mesa_BlendColor;
 338    exec->BlendEquation = _mesa_BlendEquation;
 339    exec->ColorSubTable = _mesa_ColorSubTable;
 340    exec->ColorTable = _mesa_ColorTable;
 341    exec->ColorTableParameterfv = _mesa_ColorTableParameterfv;
 342    exec->ColorTableParameteriv = _mesa_ColorTableParameteriv;
 343    exec->ConvolutionFilter1D = _mesa_ConvolutionFilter1D;
 344    exec->ConvolutionFilter2D = _mesa_ConvolutionFilter2D;
 345    exec->ConvolutionParameterf = _mesa_ConvolutionParameterf;
 346    exec->ConvolutionParameterfv = _mesa_ConvolutionParameterfv;
 347    exec->ConvolutionParameteri = _mesa_ConvolutionParameteri;
 348    exec->ConvolutionParameteriv = _mesa_ConvolutionParameteriv;
 349    exec->CopyColorSubTable = _mesa_CopyColorSubTable;
 350    exec->CopyColorTable = _mesa_CopyColorTable;
 351    exec->CopyConvolutionFilter1D = _mesa_CopyConvolutionFilter1D;
 352    exec->CopyConvolutionFilter2D = _mesa_CopyConvolutionFilter2D;
 353    exec->GetColorTable = _mesa_GetColorTable;
 354    exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;
 355    exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;
 356    exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;
 357    exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;
 358    exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;
 359    exec->GetHistogram = _mesa_GetHistogram;
 360    exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;
 361    exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;
 362    exec->GetMinmax = _mesa_GetMinmax;
 363    exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;
 364    exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;
 365    exec->GetSeparableFilter = _mesa_GetSeparableFilter;
 366    exec->Histogram = _mesa_Histogram;
 367    exec->Minmax = _mesa_Minmax;
 368    exec->ResetHistogram = _mesa_ResetHistogram;
 369    exec->ResetMinmax = _mesa_ResetMinmax;
 370    exec->SeparableFilter2D = _mesa_SeparableFilter2D;
 371
 372    /* 2. GL_EXT_blend_color */
 373 #if 0
 374    exec->BlendColorEXT = _mesa_BlendColorEXT;
 375 #endif
 376
 377    /* 3. GL_EXT_polygon_offset */
 378    exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;
 379
 380    /* 6. GL_EXT_texture3d */
 381 #if 0
 382    exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D;
 383    exec->TexImage3DEXT = _mesa_TexImage3DEXT;
 384    exec->TexSubImage3DEXT = _mesa_TexSubImage3D;
 385 #endif
 386
 387    /* 11. GL_EXT_histogram */
 388    exec->GetHistogramEXT = _mesa_GetHistogram;
 389    exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
 390    exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
 391    exec->GetMinmaxEXT = _mesa_GetMinmax;
 392    exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
 393    exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
 394
 395    /* ?. GL_SGIX_pixel_texture */
 396    exec->PixelTexGenSGIX = _mesa_PixelTexGenSGIX;
 397
 398    /* 15. GL_SGIS_pixel_texture */
 399    exec->PixelTexGenParameteriSGIS = _mesa_PixelTexGenParameteriSGIS;
 400    exec->PixelTexGenParameterivSGIS = _mesa_PixelTexGenParameterivSGIS;
 401    exec->PixelTexGenParameterfSGIS = _mesa_PixelTexGenParameterfSGIS;
 402    exec->PixelTexGenParameterfvSGIS = _mesa_PixelTexGenParameterfvSGIS;
 403    exec->GetPixelTexGenParameterivSGIS = _mesa_GetPixelTexGenParameterivSGIS;
 404    exec->GetPixelTexGenParameterfvSGIS = _mesa_GetPixelTexGenParameterfvSGIS;
 405
 406    /* 30. GL_EXT_vertex_array */
 407    exec->ColorPointerEXT = _mesa_ColorPointerEXT;
 408    exec->EdgeFlagPointerEXT = _mesa_EdgeFlagPointerEXT;
 409    exec->IndexPointerEXT = _mesa_IndexPointerEXT;
 410    exec->NormalPointerEXT = _mesa_NormalPointerEXT;
 411    exec->TexCoordPointerEXT = _mesa_TexCoordPointerEXT;
 412    exec->VertexPointerEXT = _mesa_VertexPointerEXT;
 413
 414    /* 37. GL_EXT_blend_minmax */
 415 #if 0
 416    exec->BlendEquationEXT = _mesa_BlendEquationEXT;
 417 #endif
 418
 419    /* 54. GL_EXT_point_parameters */
 420    exec->PointParameterfEXT = _mesa_PointParameterfEXT;
 421    exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;
 422
 423    /* 78. GL_EXT_paletted_texture */
 424 #if 0
 425    exec->ColorTableEXT = _mesa_ColorTableEXT;
 426    exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;
 427 #endif
 428    exec->GetColorTableEXT = _mesa_GetColorTable;
 429    exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
 430    exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
 431
 432    /* 97. GL_EXT_compiled_vertex_array */
 433    exec->LockArraysEXT = _mesa_LockArraysEXT;
 434    exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;
 435
 436    /* 173. GL_INGR_blend_func_separate */
 437    exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT;
 438
 439    /* 196. GL_MESA_resize_buffers */
 440    exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;
 441
 442    /* 197. GL_MESA_window_pos */
 443    exec->WindowPos2dMESA = _mesa_WindowPos2dMESA;
 444    exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA;
 445    exec->WindowPos2fMESA = _mesa_WindowPos2fMESA;
 446    exec->WindowPos2fvMESA = _mesa_WindowPos2fvMESA;
 447    exec->WindowPos2iMESA = _mesa_WindowPos2iMESA;
 448    exec->WindowPos2ivMESA = _mesa_WindowPos2ivMESA;
 449    exec->WindowPos2sMESA = _mesa_WindowPos2sMESA;
 450    exec->WindowPos2svMESA = _mesa_WindowPos2svMESA;
 451    exec->WindowPos3dMESA = _mesa_WindowPos3dMESA;
 452    exec->WindowPos3dvMESA = _mesa_WindowPos3dvMESA;
 453    exec->WindowPos3fMESA = _mesa_WindowPos3fMESA;
 454    exec->WindowPos3fvMESA = _mesa_WindowPos3fvMESA;
 455    exec->WindowPos3iMESA = _mesa_WindowPos3iMESA;
 456    exec->WindowPos3ivMESA = _mesa_WindowPos3ivMESA;
 457    exec->WindowPos3sMESA = _mesa_WindowPos3sMESA;
 458    exec->WindowPos3svMESA = _mesa_WindowPos3svMESA;
 459    exec->WindowPos4dMESA = _mesa_WindowPos4dMESA;
 460    exec->WindowPos4dvMESA = _mesa_WindowPos4dvMESA;
 461    exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;
 462    exec->WindowPos4fvMESA = _mesa_WindowPos4fvMESA;
 463    exec->WindowPos4iMESA = _mesa_WindowPos4iMESA;
 464    exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA;
 465    exec->WindowPos4sMESA = _mesa_WindowPos4sMESA;
 466    exec->WindowPos4svMESA = _mesa_WindowPos4svMESA;
 467
 468    /* ARB 1. GL_ARB_multitexture */
 469    exec->ActiveTextureARB = _mesa_ActiveTextureARB;
 470    exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;
 471
 472    /* ARB 3. GL_ARB_transpose_matrix */
 473    exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;
 474    exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;
 475    exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;
 476    exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;
 477
 478    /* ARB 12. GL_ARB_texture_compression */
 479    exec->CompressedTexImage3DARB = _mesa_CompressedTexImage3DARB;
 480    exec->CompressedTexImage2DARB = _mesa_CompressedTexImage2DARB;
 481    exec->CompressedTexImage1DARB = _mesa_CompressedTexImage1DARB;
 482    exec->CompressedTexSubImage3DARB = _mesa_CompressedTexSubImage3DARB;
 483    exec->CompressedTexSubImage2DARB = _mesa_CompressedTexSubImage2DARB;
 484    exec->CompressedTexSubImage1DARB = _mesa_CompressedTexSubImage1DARB;
 485    exec->GetCompressedTexImageARB = _mesa_GetCompressedTexImageARB;
 486
 487 }
 488
 489
 490
 491 /**********************************************************************/
 492 /*****                   State update logic                       *****/
 493 /**********************************************************************/
 494
 495
 496 static void
 497 update_polygon( GLcontext *ctx )
 498 {
 499    ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);
 500
 501    if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
 502       ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
 503
 504    /* Any Polygon offsets enabled? */
 505    ctx->Polygon._OffsetAny = GL_FALSE;
 506    ctx->_TriangleCaps &= ~DD_TRI_OFFSET;
 507
 508    if (ctx->Polygon.OffsetPoint ||
 509        ctx->Polygon.OffsetLine ||
 510        ctx->Polygon.OffsetFill) {
 511       ctx->_TriangleCaps |= DD_TRI_OFFSET;
 512       ctx->Polygon._OffsetAny = GL_TRUE;
 513    }
 514 }
 515
 516 static void
 517 calculate_model_project_matrix( GLcontext *ctx )
 518 {
 519    if (!ctx->_NeedEyeCoords) {
 520       _math_matrix_mul_matrix( &ctx->_ModelProjectMatrix,
 521                                &ctx->ProjectionMatrix,
 522                                &ctx->ModelView );
 523
 524       _math_matrix_analyse( &ctx->_ModelProjectMatrix );
 525    }
 526 }
 527
 528 static void
 529 update_modelview_scale( GLcontext *ctx )
 530 {
 531    ctx->_ModelViewInvScale = 1.0F;
 532    if (ctx->ModelView.flags & (MAT_FLAG_UNIFORM_SCALE |
 533                                MAT_FLAG_GENERAL_SCALE |
 534                                MAT_FLAG_GENERAL_3D |
 535                                MAT_FLAG_GENERAL) ) {
 536       const GLfloat *m = ctx->ModelView.inv;
 537       GLfloat f = m[2] * m[2] + m[6] * m[6] + m[10] * m[10];
 538       if (f < 1e-12) f = 1.0;
 539       if (ctx->_NeedEyeCoords)
 540          ctx->_ModelViewInvScale = 1.0/GL_SQRT(f);
 541       else
 542          ctx->_ModelViewInvScale = GL_SQRT(f);
 543    }
 544 }
 545
 546
 547 /* Bring uptodate any state that relies on _NeedEyeCoords.
 548  */
 549 static void
 550 update_tnl_spaces( GLcontext *ctx, GLuint oldneedeyecoords )
 551 {
 552    /* Check if the truth-value interpretations of the bitfields have
 553     * changed:
 554     */
 555    if ((oldneedeyecoords == 0) != (ctx->_NeedEyeCoords == 0)) {
 556       /* Recalculate all state that depends on _NeedEyeCoords.
 557        */
 558       update_modelview_scale(ctx);
 559       calculate_model_project_matrix(ctx);
 560       _mesa_compute_light_positions( ctx );
 561
 562       if (ctx->Driver.LightingSpaceChange)
 563          ctx->Driver.LightingSpaceChange( ctx );
 564    }
 565    else {
 566       GLuint new_state = ctx->NewState;
 567
 568       /* Recalculate that same state only if it has been invalidated
 569        * by other statechanges.
 570        */
 571       if (new_state & _NEW_MODELVIEW)
 572          update_modelview_scale(ctx);
 573
 574       if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
 575          calculate_model_project_matrix(ctx);
 576
 577       if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW))
 578          _mesa_compute_light_positions( ctx );
 579    }
 580 }
 581
 582
 583 static void
 584 update_drawbuffer( GLcontext *ctx )
 585 {
 586    ctx->DrawBuffer->_Xmin = 0;
 587    ctx->DrawBuffer->_Ymin = 0;
 588    ctx->DrawBuffer->_Xmax = ctx->DrawBuffer->Width;
 589    ctx->DrawBuffer->_Ymax = ctx->DrawBuffer->Height;
 590    if (ctx->Scissor.Enabled) {
 591       if (ctx->Scissor.X > ctx->DrawBuffer->_Xmin) {
 592          ctx->DrawBuffer->_Xmin = ctx->Scissor.X;
 593       }
 594       if (ctx->Scissor.Y > ctx->DrawBuffer->_Ymin) {
 595          ctx->DrawBuffer->_Ymin = ctx->Scissor.Y;
 596       }
 597       if (ctx->Scissor.X + ctx->Scissor.Width < ctx->DrawBuffer->_Xmax) {
 598          ctx->DrawBuffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width;
 599       }
 600       if (ctx->Scissor.Y + ctx->Scissor.Height < ctx->DrawBuffer->_Ymax) {
 601          ctx->DrawBuffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height;
 602       }
 603    }
 604 }
 605
 606
 607 /* NOTE: This routine references Tranform attribute values to compute
 608  * userclip positions in clip space, but is only called on
 609  * _NEW_PROJECTION.  The _mesa_ClipPlane() function keeps these values
 610  * uptodate across changes to the Transform attributes.
 611  */
 612 static void
 613 update_projection( GLcontext *ctx )
 614 {
 615    _math_matrix_analyse( &ctx->ProjectionMatrix );
 616
 617    /* Recompute clip plane positions in clipspace.  This is also done
 618     * in _mesa_ClipPlane().
 619     */
 620    if (ctx->Transform._AnyClip) {
 621       GLuint p;
 622       for (p = 0; p < ctx->Const.MaxClipPlanes; p++) {
 623          if (ctx->Transform.ClipEnabled[p]) {
 624             _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],
 625                                  ctx->Transform.EyeUserPlane[p],
 626                                  ctx->ProjectionMatrix.inv );
 627          }
 628       }
 629    }
 630 }
 631
 632
 633 /*
 634  * Return a bitmask of IMAGE_*_BIT flags which to indicate which
 635  * pixel transfer operations are enabled.
 636  */
 637 static void
 638 update_image_transfer_state(GLcontext *ctx)
 639 {
 640    GLuint mask = 0;
 641
 642    if (ctx->Pixel.RedScale   != 1.0F || ctx->Pixel.RedBias   != 0.0F ||
 643        ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F ||
 644        ctx->Pixel.BlueScale  != 1.0F || ctx->Pixel.BlueBias  != 0.0F ||
 645        ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F)
 646       mask |= IMAGE_SCALE_BIAS_BIT;
 647
 648    if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset)
 649       mask |= IMAGE_SHIFT_OFFSET_BIT;
 650
 651    if (ctx->Pixel.MapColorFlag)
 652       mask |= IMAGE_MAP_COLOR_BIT;
 653
 654    if (ctx->Pixel.ColorTableEnabled)
 655       mask |= IMAGE_COLOR_TABLE_BIT;
 656
 657    if (ctx->Pixel.Convolution1DEnabled ||
 658        ctx->Pixel.Convolution2DEnabled ||
 659        ctx->Pixel.Separable2DEnabled) {
 660       mask |= IMAGE_CONVOLUTION_BIT;
 661       if (ctx->Pixel.PostConvolutionScale[0] != 1.0F ||
 662           ctx->Pixel.PostConvolutionScale[1] != 1.0F ||
 663           ctx->Pixel.PostConvolutionScale[2] != 1.0F ||
 664           ctx->Pixel.PostConvolutionScale[3] != 1.0F ||
 665           ctx->Pixel.PostConvolutionBias[0] != 0.0F ||
 666           ctx->Pixel.PostConvolutionBias[1] != 0.0F ||
 667           ctx->Pixel.PostConvolutionBias[2] != 0.0F ||
 668           ctx->Pixel.PostConvolutionBias[3] != 0.0F) {
 669          mask |= IMAGE_POST_CONVOLUTION_SCALE_BIAS;
 670       }
 671    }
 672
 673    if (ctx->Pixel.PostConvolutionColorTableEnabled)
 674       mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT;
 675
 676    if (ctx->ColorMatrix.type != MATRIX_IDENTITY ||
 677        ctx->Pixel.PostColorMatrixScale[0] != 1.0F ||
 678        ctx->Pixel.PostColorMatrixBias[0]  != 0.0F ||
 679        ctx->Pixel.PostColorMatrixScale[1] != 1.0F ||
 680        ctx->Pixel.PostColorMatrixBias[1]  != 0.0F ||
 681        ctx->Pixel.PostColorMatrixScale[2] != 1.0F ||
 682        ctx->Pixel.PostColorMatrixBias[2]  != 0.0F ||
 683        ctx->Pixel.PostColorMatrixScale[3] != 1.0F ||
 684        ctx->Pixel.PostColorMatrixBias[3]  != 0.0F)
 685       mask |= IMAGE_COLOR_MATRIX_BIT;
 686
 687    if (ctx->Pixel.PostColorMatrixColorTableEnabled)
 688       mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT;
 689
 690    if (ctx->Pixel.HistogramEnabled)
 691       mask |= IMAGE_HISTOGRAM_BIT;
 692
 693    if (ctx->Pixel.MinMaxEnabled)
 694       mask |= IMAGE_MIN_MAX_BIT;
 695
 696    ctx->_ImageTransferState = mask;
 697 }
 698
 699
 700
 701
 702 /* Note: This routine refers to derived texture attribute values to
 703  * compute the ENABLE_TEXMAT flags, but is only called on
 704  * _NEW_TEXTURE_MATRIX.  On changes to _NEW_TEXTURE, the ENABLE_TEXMAT
 705  * flags are updated by _mesa_update_textures(), below.
 706  *
 707  * If both TEXTURE and TEXTURE_MATRIX change at once, these values
 708  * will be computed twice.
 709  */
 710 static void
 711 update_texture_matrices( GLcontext *ctx )
 712 {
 713    GLuint i;
 714
 715    ctx->Texture._TexMatEnabled = 0;
 716
 717    for (i=0; i < ctx->Const.MaxTextureUnits; i++) {
 718       if (ctx->TextureMatrix[i].flags & MAT_DIRTY) {
 719          _math_matrix_analyse( &ctx->TextureMatrix[i] );
 720
 721          if (ctx->Driver.TextureMatrix)
 722             ctx->Driver.TextureMatrix( ctx, i, &ctx->TextureMatrix[i] );
 723
 724          if (ctx->Texture.Unit[i]._ReallyEnabled &&
 725              ctx->TextureMatrix[i].type != MATRIX_IDENTITY)
 726             ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i);
 727       }
 728    }
 729 }
 730
 731
 732 /* Note: This routine refers to derived texture matrix values to
 733  * compute the ENABLE_TEXMAT flags, but is only called on
 734  * _NEW_TEXTURE.  On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT
 735  * flags are updated by _mesa_update_texture_matrices, above.
 736  *
 737  * If both TEXTURE and TEXTURE_MATRIX change at once, these values
 738  * will be computed twice.
 739  */
 740 static void
 741 update_texture_state( GLcontext *ctx )
 742 {
 743    GLuint i;
 744
 745    ctx->Texture._ReallyEnabled = 0;
 746    ctx->Texture._GenFlags = 0;
 747    ctx->_NeedNormals &= ~NEED_NORMALS_TEXGEN;
 748    ctx->_NeedEyeCoords &= ~NEED_EYE_TEXGEN;
 749    ctx->Texture._TexMatEnabled = 0;
 750    ctx->Texture._TexGenEnabled = 0;
 751
 752    /* Update texture unit state.
 753     */
 754    for (i=0; i < ctx->Const.MaxTextureUnits; i++) {
 755       struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
 756
 757       texUnit->_ReallyEnabled = 0;
 758       texUnit->_GenFlags = 0;
 759
 760       if (!texUnit->Enabled)
 761          continue;
 762
 763       /* Find the texture of highest dimensionality that is enabled
 764        * and complete.  We'll use it for texturing.
 765        */
 766       if (texUnit->Enabled & TEXTURE0_CUBE) {
 767          struct gl_texture_object *texObj = texUnit->CurrentCubeMap;
 768          if (!texObj->Complete) {
 769             _mesa_test_texobj_completeness(ctx, texObj);
 770          }
 771          if (texObj->Complete) {
 772             texUnit->_ReallyEnabled = TEXTURE0_CUBE;
 773             texUnit->_Current = texObj;
 774          }
 775       }
 776
 777       if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE0_3D)) {
 778          struct gl_texture_object *texObj = texUnit->Current3D;
 779          if (!texObj->Complete) {
 780             _mesa_test_texobj_completeness(ctx, texObj);
 781          }
 782          if (texObj->Complete) {
 783             texUnit->_ReallyEnabled = TEXTURE0_3D;
 784             texUnit->_Current = texObj;
 785          }
 786       }
 787
 788       if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE0_2D)) {
 789          struct gl_texture_object *texObj = texUnit->Current2D;
 790          if (!texObj->Complete) {
 791             _mesa_test_texobj_completeness(ctx, texObj);
 792          }
 793          if (texObj->Complete) {
 794             texUnit->_ReallyEnabled = TEXTURE0_2D;
 795             texUnit->_Current = texObj;
 796          }
 797       }
 798
 799       if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE0_1D)) {
 800          struct gl_texture_object *texObj = texUnit->Current1D;
 801          if (!texObj->Complete) {
 802             _mesa_test_texobj_completeness(ctx, texObj);
 803          }
 804          if (texObj->Complete) {
 805             texUnit->_ReallyEnabled = TEXTURE0_1D;
 806             texUnit->_Current = texObj;
 807          }
 808       }
 809
 810       if (!texUnit->_ReallyEnabled) {
 811          texUnit->_Current = NULL;
 812          continue;
 813       }
 814
 815       {
 816          GLuint flag = texUnit->_ReallyEnabled << (i * 4);
 817          ctx->Texture._ReallyEnabled |= flag;
 818       }
 819
 820       if (texUnit->TexGenEnabled) {
 821          if (texUnit->TexGenEnabled & S_BIT) {
 822             texUnit->_GenFlags |= texUnit->_GenBitS;
 823          }
 824          if (texUnit->TexGenEnabled & T_BIT) {
 825             texUnit->_GenFlags |= texUnit->_GenBitT;
 826          }
 827          if (texUnit->TexGenEnabled & Q_BIT) {
 828             texUnit->_GenFlags |= texUnit->_GenBitQ;
 829          }
 830          if (texUnit->TexGenEnabled & R_BIT) {
 831             texUnit->_GenFlags |= texUnit->_GenBitR;
 832          }
 833
 834          ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(i);
 835          ctx->Texture._GenFlags |= texUnit->_GenFlags;
 836       }
 837
 838       if (ctx->TextureMatrix[i].type != MATRIX_IDENTITY)
 839          ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i);
 840    }
 841
 842    if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) {
 843       ctx->_NeedNormals |= NEED_NORMALS_TEXGEN;
 844       ctx->_NeedEyeCoords |= NEED_EYE_TEXGEN;
 845    }
 846
 847    if (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) {
 848       ctx->_NeedEyeCoords |= NEED_EYE_TEXGEN;
 849    }
 850 }
 851
 852
 853 /*
 854  * If ctx->NewState is non-zero then this function MUST be called before
 855  * rendering any primitive.  Basically, function pointers and miscellaneous
 856  * flags are updated to reflect the current state of the state machine.
 857  *
 858  * The above constraint is now maintained largely by the two Exec
 859  * dispatch tables, which trigger the appropriate flush on transition
 860  * between State and Geometry modes.
 861  *
 862  * Special care is taken with the derived value _NeedEyeCoords.  This
 863  * is a bitflag which is updated with information from a number of
 864  * attribute groups (MODELVIEW, LIGHT, TEXTURE).  A lot of derived
 865  * state references this value, and must be treated with care to
 866  * ensure that updates are done correctly.  All state dependent on
 867  * _NeedEyeCoords is calculated from within _mesa_update_tnl_spaces(),
 868  * and from nowhere else.
 869  */
 870 void _mesa_update_state( GLcontext *ctx )
 871 {
 872    const GLuint new_state = ctx->NewState;
 873    const GLuint oldneedeyecoords = ctx->_NeedEyeCoords;
 874
 875    if (MESA_VERBOSE & VERBOSE_STATE)
 876       _mesa_print_state("", new_state);
 877
 878    if (new_state & _NEW_MODELVIEW)
 879       _math_matrix_analyse( &ctx->ModelView );
 880
 881    if (new_state & _NEW_PROJECTION)
 882       update_projection( ctx );
 883
 884    if (new_state & _NEW_TEXTURE_MATRIX)
 885       update_texture_matrices( ctx );
 886
 887    if (new_state & _NEW_COLOR_MATRIX)
 888       _math_matrix_analyse( &ctx->ColorMatrix );
 889
 890    /* References ColorMatrix.type (derived above).
 891     */
 892    if (new_state & _IMAGE_NEW_TRANSFER_STATE)
 893       update_image_transfer_state(ctx);
 894
 895    /* Contributes to NeedEyeCoords, NeedNormals.
 896     */
 897    if (new_state & _NEW_TEXTURE)
 898       update_texture_state( ctx );
 899
 900    if (new_state & (_NEW_BUFFERS|_NEW_SCISSOR))
 901       update_drawbuffer( ctx );
 902
 903    if (new_state & _NEW_POLYGON)
 904       update_polygon( ctx );
 905
 906    /* Contributes to NeedEyeCoords, NeedNormals.
 907     */
 908    if (new_state & _NEW_LIGHT)
 909       _mesa_update_lighting( ctx );
 910
 911    /* We can light in object space if the modelview matrix preserves
 912     * lengths and relative angles.
 913     */
 914    if (new_state & (_NEW_MODELVIEW|_NEW_LIGHT)) {
 915       ctx->_NeedEyeCoords &= ~NEED_EYE_LIGHT_MODELVIEW;
 916       if (ctx->Light.Enabled &&
 917           !TEST_MAT_FLAGS( &ctx->ModelView, MAT_FLAGS_LENGTH_PRESERVING))
 918             ctx->_NeedEyeCoords |= NEED_EYE_LIGHT_MODELVIEW;
 919    }
 920
 921
 922    /* ctx->_NeedEyeCoords is now uptodate.
 923     *
 924     * If the truth value of this variable has changed, update for the
 925     * new lighting space and recompute the positions of lights and the
 926     * normal transform.
 927     *
 928     * If the lighting space hasn't changed, may still need to recompute
 929     * light positions & normal transforms for other reasons.
 930     */
 931    if (new_state & (_NEW_MODELVIEW |
 932                     _NEW_PROJECTION |
 933                     _NEW_LIGHT |
 934                     _MESA_NEW_NEED_EYE_COORDS))
 935       update_tnl_spaces( ctx, oldneedeyecoords );
 936
 937    /*
 938     * Here the driver sets up all the ctx->Driver function pointers
 939     * to it's specific, private functions, and performs any
 940     * internal state management necessary, including invalidating
 941     * state of active modules.
 942     *
 943     * Set ctx->NewState to zero to avoid recursion if
 944     * Driver.UpdateState() has to call FLUSH_VERTICES().  (fixed?)
 945     */
 946    ctx->NewState = 0;
 947    ctx->Driver.UpdateState(ctx, new_state);
 948    ctx->Array.NewState = 0;
 949
 950    /* At this point we can do some assertions to be sure the required
 951     * device driver function pointers are all initialized.
 952     */
 953    ASSERT(ctx->Driver.GetString);
 954    ASSERT(ctx->Driver.UpdateState);
 955    ASSERT(ctx->Driver.Clear);
 956    ASSERT(ctx->Driver.SetDrawBuffer);
 957    ASSERT(ctx->Driver.GetBufferSize);
 958    if (ctx->Visual.accumRedBits > 0) {
 959       ASSERT(ctx->Driver.Accum);
 960    }
 961    ASSERT(ctx->Driver.DrawPixels);
 962    ASSERT(ctx->Driver.ReadPixels);
 963    ASSERT(ctx->Driver.CopyPixels);
 964    ASSERT(ctx->Driver.Bitmap);
 965    ASSERT(ctx->Driver.ResizeBuffersMESA);
 966    ASSERT(ctx->Driver.TexImage1D);
 967    ASSERT(ctx->Driver.TexImage2D);
 968    ASSERT(ctx->Driver.TexImage3D);
 969    ASSERT(ctx->Driver.TexSubImage1D);
 970    ASSERT(ctx->Driver.TexSubImage2D);
 971    ASSERT(ctx->Driver.TexSubImage3D);
 972    ASSERT(ctx->Driver.CopyTexImage1D);
 973    ASSERT(ctx->Driver.CopyTexImage2D);
 974    ASSERT(ctx->Driver.CopyTexSubImage1D);
 975    ASSERT(ctx->Driver.CopyTexSubImage2D);
 976    ASSERT(ctx->Driver.CopyTexSubImage3D);
 977    if (ctx->Extensions.ARB_texture_compression) {
 978       ASSERT(ctx->Driver.CompressedTexImage1D);
 979       ASSERT(ctx->Driver.CompressedTexImage2D);
 980       ASSERT(ctx->Driver.CompressedTexImage3D);
 981       ASSERT(ctx->Driver.CompressedTexSubImage1D);
 982       ASSERT(ctx->Driver.CompressedTexSubImage2D);
 983       ASSERT(ctx->Driver.CompressedTexSubImage3D);
 984       ASSERT(ctx->Driver.IsCompressedFormat);
 985       ASSERT(ctx->Driver.GetCompressedTexImage);
 986       ASSERT(ctx->Driver.BaseCompressedTexFormat);
 987    }
 988 }