src/mesa/main/state.c

   1 /**
   2  * \file state.c
   3  * State management.
   4  *
   5  * This file manages recalculation of derived values in the __GLcontextRec.
   6  * Also, this is where we initialize the API dispatch table.
   7  */
   8
   9 /*
  10  * Mesa 3-D graphics library
  11  * Version:  6.1
  12  *
  13  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
  14  *
  15  * Permission is hereby granted, free of charge, to any person obtaining a
  16  * copy of this software and associated documentation files (the "Software"),
  17  * to deal in the Software without restriction, including without limitation
  18  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  19  * and/or sell copies of the Software, and to permit persons to whom the
  20  * Software is furnished to do so, subject to the following conditions:
  21  *
  22  * The above copyright notice and this permission notice shall be included
  23  * in all copies or substantial portions of the Software.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  26  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  27  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  28  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  29  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31  */
  32
  33
  34 #include "glheader.h"
  35 #include "accum.h"
  36 #include "api_loopback.h"
  37 #if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
  38 #include "arbprogram.h"
  39 #endif
  40 #include "attrib.h"
  41 #include "blend.h"
  42 #if FEATURE_ARB_vertex_buffer_object
  43 #include "bufferobj.h"
  44 #endif
  45 #include "buffers.h"
  46 #include "clip.h"
  47 #include "colortab.h"
  48 #include "context.h"
  49 #include "convolve.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 "imports.h"
  61 #include "light.h"
  62 #include "lines.h"
  63 #include "macros.h"
  64 #include "matrix.h"
  65 #if FEATURE_ARB_occlusion_query
  66 #include "occlude.h"
  67 #endif
  68 #include "pixel.h"
  69 #include "points.h"
  70 #include "polygon.h"
  71 #include "rastpos.h"
  72 #include "state.h"
  73 #include "stencil.h"
  74 #include "teximage.h"
  75 #include "texobj.h"
  76 #include "texstate.h"
  77 #include "mtypes.h"
  78 #include "varray.h"
  79 #if FEATURE_NV_vertex_program
  80 #include "nvprogram.h"
  81 #endif
  82 #if FEATURE_NV_fragment_program
  83 #include "nvfragprog.h"
  84 #include "nvprogram.h"
  85 #include "program.h"
  86 #endif
  87 #include "debug.h"
  88
  89 /* #include "math/m_matrix.h" */
  90 /* #include "math/m_xform.h" */
  91
  92
  93 /**********************************************************************/
  94 /** \name Dispatch table setup */
  95 /*@{*/
  96
  97 /**
  98  * Generic no-op dispatch function.
  99  *
 100  * Used in replacement of the functions which are not part of Mesa subset.
 101  *
 102  * Displays a message.
 103  */
 104 static int
 105 generic_noop(void)
 106 {
 107    _mesa_problem(NULL, "User called no-op dispatch function (not part of Mesa subset?)");
 108    return 0;
 109 }
 110
 111
 112 /**
 113  * Set all pointers in the given dispatch table to point to a
 114  * generic no-op function - generic_noop().
 115  *
 116  * \param table dispatch table.
 117  * \param tableSize dispatch table size.
 118  */
 119 void
 120 _mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize)
 121 {
 122    GLuint i;
 123    void **dispatch = (void **) table;
 124    for (i = 0; i < tableSize; i++) {
 125       dispatch[i] = (void *) generic_noop;
 126    }
 127 }
 128
 129
 130 /**
 131  * Initialize a dispatch table with pointers to Mesa's immediate-mode
 132  * commands.
 133  *
 134  * Pointers to glBegin()/glEnd() object commands and a few others
 135  * are provided via the GLvertexformat interface.
 136  *
 137  * \param exec dispatch table.
 138  * \param tableSize dispatch table size.
 139  */
 140 void
 141 _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize)
 142 {
 143    /* first initialize all dispatch slots to no-op */
 144    _mesa_init_no_op_table(exec, tableSize);
 145
 146 #if _HAVE_FULL_GL
 147    _mesa_loopback_init_api_table( exec );
 148 #endif
 149
 150    /* load the dispatch slots we understand */
 151    exec->AlphaFunc = _mesa_AlphaFunc;
 152    exec->BlendFunc = _mesa_BlendFunc;
 153    exec->Clear = _mesa_Clear;
 154    exec->ClearColor = _mesa_ClearColor;
 155    exec->ClearStencil = _mesa_ClearStencil;
 156    exec->ColorMask = _mesa_ColorMask;
 157    exec->CullFace = _mesa_CullFace;
 158    exec->Disable = _mesa_Disable;
 159    exec->DrawBuffer = _mesa_DrawBuffer;
 160    exec->Enable = _mesa_Enable;
 161    exec->Finish = _mesa_Finish;
 162    exec->Flush = _mesa_Flush;
 163    exec->FrontFace = _mesa_FrontFace;
 164    exec->Frustum = _mesa_Frustum;
 165    exec->GetError = _mesa_GetError;
 166    exec->GetFloatv = _mesa_GetFloatv;
 167    exec->GetString = _mesa_GetString;
 168    exec->InitNames = _mesa_InitNames;
 169    exec->LineStipple = _mesa_LineStipple;
 170    exec->LineWidth = _mesa_LineWidth;
 171    exec->LoadIdentity = _mesa_LoadIdentity;
 172    exec->LoadMatrixf = _mesa_LoadMatrixf;
 173    exec->LoadName = _mesa_LoadName;
 174    exec->LogicOp = _mesa_LogicOp;
 175    exec->MatrixMode = _mesa_MatrixMode;
 176    exec->MultMatrixf = _mesa_MultMatrixf;
 177    exec->Ortho = _mesa_Ortho;
 178    exec->PixelStorei = _mesa_PixelStorei;
 179    exec->PopMatrix = _mesa_PopMatrix;
 180    exec->PopName = _mesa_PopName;
 181    exec->PushMatrix = _mesa_PushMatrix;
 182    exec->PushName = _mesa_PushName;
 183    exec->RasterPos2f = _mesa_RasterPos2f;
 184    exec->RasterPos2fv = _mesa_RasterPos2fv;
 185    exec->RasterPos2i = _mesa_RasterPos2i;
 186    exec->RasterPos2iv = _mesa_RasterPos2iv;
 187    exec->ReadBuffer = _mesa_ReadBuffer;
 188    exec->RenderMode = _mesa_RenderMode;
 189    exec->Rotatef = _mesa_Rotatef;
 190    exec->Scalef = _mesa_Scalef;
 191    exec->Scissor = _mesa_Scissor;
 192    exec->SelectBuffer = _mesa_SelectBuffer;
 193    exec->ShadeModel = _mesa_ShadeModel;
 194    exec->StencilFunc = _mesa_StencilFunc;
 195    exec->StencilMask = _mesa_StencilMask;
 196    exec->StencilOp = _mesa_StencilOp;
 197    exec->TexEnvfv = _mesa_TexEnvfv;
 198    exec->TexEnvi = _mesa_TexEnvi;
 199    exec->TexImage2D = _mesa_TexImage2D;
 200    exec->TexParameteri = _mesa_TexParameteri;
 201    exec->Translatef = _mesa_Translatef;
 202    exec->Viewport = _mesa_Viewport;
 203 #if _HAVE_FULL_GL
 204    exec->Accum = _mesa_Accum;
 205    exec->Bitmap = _mesa_Bitmap;
 206    exec->CallList = _mesa_CallList;
 207    exec->CallLists = _mesa_CallLists;
 208    exec->ClearAccum = _mesa_ClearAccum;
 209    exec->ClearDepth = _mesa_ClearDepth;
 210    exec->ClearIndex = _mesa_ClearIndex;
 211    exec->ClipPlane = _mesa_ClipPlane;
 212    exec->ColorMaterial = _mesa_ColorMaterial;
 213    exec->CopyPixels = _mesa_CopyPixels;
 214    exec->DeleteLists = _mesa_DeleteLists;
 215    exec->DepthFunc = _mesa_DepthFunc;
 216    exec->DepthMask = _mesa_DepthMask;
 217    exec->DepthRange = _mesa_DepthRange;
 218    exec->DrawPixels = _mesa_DrawPixels;
 219    exec->EndList = _mesa_EndList;
 220    exec->FeedbackBuffer = _mesa_FeedbackBuffer;
 221    exec->FogCoordPointerEXT = _mesa_FogCoordPointerEXT;
 222    exec->Fogf = _mesa_Fogf;
 223    exec->Fogfv = _mesa_Fogfv;
 224    exec->Fogi = _mesa_Fogi;
 225    exec->Fogiv = _mesa_Fogiv;
 226    exec->GenLists = _mesa_GenLists;
 227    exec->GetClipPlane = _mesa_GetClipPlane;
 228    exec->GetBooleanv = _mesa_GetBooleanv;
 229    exec->GetDoublev = _mesa_GetDoublev;
 230    exec->GetIntegerv = _mesa_GetIntegerv;
 231    exec->GetLightfv = _mesa_GetLightfv;
 232    exec->GetLightiv = _mesa_GetLightiv;
 233    exec->GetMapdv = _mesa_GetMapdv;
 234    exec->GetMapfv = _mesa_GetMapfv;
 235    exec->GetMapiv = _mesa_GetMapiv;
 236    exec->GetMaterialfv = _mesa_GetMaterialfv;
 237    exec->GetMaterialiv = _mesa_GetMaterialiv;
 238    exec->GetPixelMapfv = _mesa_GetPixelMapfv;
 239    exec->GetPixelMapuiv = _mesa_GetPixelMapuiv;
 240    exec->GetPixelMapusv = _mesa_GetPixelMapusv;
 241    exec->GetPolygonStipple = _mesa_GetPolygonStipple;
 242    exec->GetTexEnvfv = _mesa_GetTexEnvfv;
 243    exec->GetTexEnviv = _mesa_GetTexEnviv;
 244    exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv;
 245    exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv;
 246    exec->GetTexParameterfv = _mesa_GetTexParameterfv;
 247    exec->GetTexParameteriv = _mesa_GetTexParameteriv;
 248    exec->GetTexGendv = _mesa_GetTexGendv;
 249    exec->GetTexGenfv = _mesa_GetTexGenfv;
 250    exec->GetTexGeniv = _mesa_GetTexGeniv;
 251    exec->GetTexImage = _mesa_GetTexImage;
 252    exec->Hint = _mesa_Hint;
 253    exec->IndexMask = _mesa_IndexMask;
 254    exec->IsEnabled = _mesa_IsEnabled;
 255    exec->IsList = _mesa_IsList;
 256    exec->LightModelf = _mesa_LightModelf;
 257    exec->LightModelfv = _mesa_LightModelfv;
 258    exec->LightModeli = _mesa_LightModeli;
 259    exec->LightModeliv = _mesa_LightModeliv;
 260    exec->Lightf = _mesa_Lightf;
 261    exec->Lightfv = _mesa_Lightfv;
 262    exec->Lighti = _mesa_Lighti;
 263    exec->Lightiv = _mesa_Lightiv;
 264    exec->ListBase = _mesa_ListBase;
 265    exec->LoadMatrixd = _mesa_LoadMatrixd;
 266    exec->Map1d = _mesa_Map1d;
 267    exec->Map1f = _mesa_Map1f;
 268    exec->Map2d = _mesa_Map2d;
 269    exec->Map2f = _mesa_Map2f;
 270    exec->MapGrid1d = _mesa_MapGrid1d;
 271    exec->MapGrid1f = _mesa_MapGrid1f;
 272    exec->MapGrid2d = _mesa_MapGrid2d;
 273    exec->MapGrid2f = _mesa_MapGrid2f;
 274    exec->MultMatrixd = _mesa_MultMatrixd;
 275    exec->NewList = _mesa_NewList;
 276    exec->PassThrough = _mesa_PassThrough;
 277    exec->PixelMapfv = _mesa_PixelMapfv;
 278    exec->PixelMapuiv = _mesa_PixelMapuiv;
 279    exec->PixelMapusv = _mesa_PixelMapusv;
 280    exec->PixelStoref = _mesa_PixelStoref;
 281    exec->PixelTransferf = _mesa_PixelTransferf;
 282    exec->PixelTransferi = _mesa_PixelTransferi;
 283    exec->PixelZoom = _mesa_PixelZoom;
 284    exec->PointSize = _mesa_PointSize;
 285    exec->PolygonMode = _mesa_PolygonMode;
 286    exec->PolygonOffset = _mesa_PolygonOffset;
 287    exec->PolygonStipple = _mesa_PolygonStipple;
 288    exec->PopAttrib = _mesa_PopAttrib;
 289    exec->PushAttrib = _mesa_PushAttrib;
 290    exec->RasterPos2d = _mesa_RasterPos2d;
 291    exec->RasterPos2dv = _mesa_RasterPos2dv;
 292    exec->RasterPos2s = _mesa_RasterPos2s;
 293    exec->RasterPos2sv = _mesa_RasterPos2sv;
 294    exec->RasterPos3d = _mesa_RasterPos3d;
 295    exec->RasterPos3dv = _mesa_RasterPos3dv;
 296    exec->RasterPos3f = _mesa_RasterPos3f;
 297    exec->RasterPos3fv = _mesa_RasterPos3fv;
 298    exec->RasterPos3i = _mesa_RasterPos3i;
 299    exec->RasterPos3iv = _mesa_RasterPos3iv;
 300    exec->RasterPos3s = _mesa_RasterPos3s;
 301    exec->RasterPos3sv = _mesa_RasterPos3sv;
 302    exec->RasterPos4d = _mesa_RasterPos4d;
 303    exec->RasterPos4dv = _mesa_RasterPos4dv;
 304    exec->RasterPos4f = _mesa_RasterPos4f;
 305    exec->RasterPos4fv = _mesa_RasterPos4fv;
 306    exec->RasterPos4i = _mesa_RasterPos4i;
 307    exec->RasterPos4iv = _mesa_RasterPos4iv;
 308    exec->RasterPos4s = _mesa_RasterPos4s;
 309    exec->RasterPos4sv = _mesa_RasterPos4sv;
 310    exec->ReadPixels = _mesa_ReadPixels;
 311    exec->Rotated = _mesa_Rotated;
 312    exec->Scaled = _mesa_Scaled;
 313    exec->SecondaryColorPointerEXT = _mesa_SecondaryColorPointerEXT;
 314    exec->TexEnvf = _mesa_TexEnvf;
 315    exec->TexEnviv = _mesa_TexEnviv;
 316    exec->TexGend = _mesa_TexGend;
 317    exec->TexGendv = _mesa_TexGendv;
 318    exec->TexGenf = _mesa_TexGenf;
 319    exec->TexGenfv = _mesa_TexGenfv;
 320    exec->TexGeni = _mesa_TexGeni;
 321    exec->TexGeniv = _mesa_TexGeniv;
 322    exec->TexImage1D = _mesa_TexImage1D;
 323    exec->TexParameterf = _mesa_TexParameterf;
 324    exec->TexParameterfv = _mesa_TexParameterfv;
 325    exec->TexParameteriv = _mesa_TexParameteriv;
 326    exec->Translated = _mesa_Translated;
 327 #endif
 328
 329    /* 1.1 */
 330    exec->BindTexture = _mesa_BindTexture;
 331    exec->DeleteTextures = _mesa_DeleteTextures;
 332    exec->GenTextures = _mesa_GenTextures;
 333 #if _HAVE_FULL_GL
 334    exec->AreTexturesResident = _mesa_AreTexturesResident;
 335    exec->AreTexturesResidentEXT = _mesa_AreTexturesResident;
 336    exec->ColorPointer = _mesa_ColorPointer;
 337    exec->CopyTexImage1D = _mesa_CopyTexImage1D;
 338    exec->CopyTexImage2D = _mesa_CopyTexImage2D;
 339    exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;
 340    exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;
 341    exec->DisableClientState = _mesa_DisableClientState;
 342    exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;
 343    exec->EnableClientState = _mesa_EnableClientState;
 344    exec->GenTexturesEXT = _mesa_GenTextures;
 345    exec->GetPointerv = _mesa_GetPointerv;
 346    exec->IndexPointer = _mesa_IndexPointer;
 347    exec->InterleavedArrays = _mesa_InterleavedArrays;
 348    exec->IsTexture = _mesa_IsTexture;
 349    exec->IsTextureEXT = _mesa_IsTexture;
 350    exec->NormalPointer = _mesa_NormalPointer;
 351    exec->PopClientAttrib = _mesa_PopClientAttrib;
 352    exec->PrioritizeTextures = _mesa_PrioritizeTextures;
 353    exec->PushClientAttrib = _mesa_PushClientAttrib;
 354    exec->TexCoordPointer = _mesa_TexCoordPointer;
 355    exec->TexSubImage1D = _mesa_TexSubImage1D;
 356    exec->TexSubImage2D = _mesa_TexSubImage2D;
 357    exec->VertexPointer = _mesa_VertexPointer;
 358 #endif
 359
 360    /* 1.2 */
 361 #if _HAVE_FULL_GL
 362    exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D;
 363    exec->TexImage3D = _mesa_TexImage3D;
 364    exec->TexSubImage3D = _mesa_TexSubImage3D;
 365 #endif
 366
 367    /* OpenGL 1.2  GL_ARB_imaging */
 368 #if _HAVE_FULL_GL
 369    exec->BlendColor = _mesa_BlendColor;
 370    exec->BlendEquation = _mesa_BlendEquation;
 371    exec->ColorSubTable = _mesa_ColorSubTable;
 372    exec->ColorTable = _mesa_ColorTable;
 373    exec->ColorTableParameterfv = _mesa_ColorTableParameterfv;
 374    exec->ColorTableParameteriv = _mesa_ColorTableParameteriv;
 375    exec->ConvolutionFilter1D = _mesa_ConvolutionFilter1D;
 376    exec->ConvolutionFilter2D = _mesa_ConvolutionFilter2D;
 377    exec->ConvolutionParameterf = _mesa_ConvolutionParameterf;
 378    exec->ConvolutionParameterfv = _mesa_ConvolutionParameterfv;
 379    exec->ConvolutionParameteri = _mesa_ConvolutionParameteri;
 380    exec->ConvolutionParameteriv = _mesa_ConvolutionParameteriv;
 381    exec->CopyColorSubTable = _mesa_CopyColorSubTable;
 382    exec->CopyColorTable = _mesa_CopyColorTable;
 383    exec->CopyConvolutionFilter1D = _mesa_CopyConvolutionFilter1D;
 384    exec->CopyConvolutionFilter2D = _mesa_CopyConvolutionFilter2D;
 385    exec->GetColorTable = _mesa_GetColorTable;
 386    exec->GetColorTableEXT = _mesa_GetColorTable;
 387    exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;
 388    exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
 389    exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;
 390    exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
 391    exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;
 392    exec->GetConvolutionFilterEXT = _mesa_GetConvolutionFilter;
 393    exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;
 394    exec->GetConvolutionParameterfvEXT = _mesa_GetConvolutionParameterfv;
 395    exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;
 396    exec->GetConvolutionParameterivEXT = _mesa_GetConvolutionParameteriv;
 397    exec->GetHistogram = _mesa_GetHistogram;
 398    exec->GetHistogramEXT = _mesa_GetHistogram;
 399    exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;
 400    exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
 401    exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;
 402    exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
 403    exec->GetMinmax = _mesa_GetMinmax;
 404    exec->GetMinmaxEXT = _mesa_GetMinmax;
 405    exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;
 406    exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
 407    exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;
 408    exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
 409    exec->GetSeparableFilter = _mesa_GetSeparableFilter;
 410    exec->GetSeparableFilterEXT = _mesa_GetSeparableFilter;
 411    exec->Histogram = _mesa_Histogram;
 412    exec->Minmax = _mesa_Minmax;
 413    exec->ResetHistogram = _mesa_ResetHistogram;
 414    exec->ResetMinmax = _mesa_ResetMinmax;
 415    exec->SeparableFilter2D = _mesa_SeparableFilter2D;
 416 #endif
 417
 418    /* 2. GL_EXT_blend_color */
 419 #if 0
 420 /*    exec->BlendColorEXT = _mesa_BlendColorEXT; */
 421 #endif
 422
 423    /* 3. GL_EXT_polygon_offset */
 424 #if _HAVE_FULL_GL
 425    exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;
 426 #endif
 427
 428    /* 6. GL_EXT_texture3d */
 429 #if 0
 430 /*    exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D; */
 431 /*    exec->TexImage3DEXT = _mesa_TexImage3DEXT; */
 432 /*    exec->TexSubImage3DEXT = _mesa_TexSubImage3D; */
 433 #endif
 434
 435    /* 11. GL_EXT_histogram */
 436 #if _HAVE_FULL_GL
 437    exec->GetHistogramEXT = _mesa_GetHistogram;
 438    exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
 439    exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
 440    exec->GetMinmaxEXT = _mesa_GetMinmax;
 441    exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
 442    exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
 443 #endif
 444
 445    /* ?. GL_SGIX_pixel_texture */
 446 #if _HAVE_FULL_GL
 447    exec->PixelTexGenSGIX = _mesa_PixelTexGenSGIX;
 448 #endif
 449
 450    /* 15. GL_SGIS_pixel_texture */
 451 #if _HAVE_FULL_GL
 452    exec->PixelTexGenParameteriSGIS = _mesa_PixelTexGenParameteriSGIS;
 453    exec->PixelTexGenParameterivSGIS = _mesa_PixelTexGenParameterivSGIS;
 454    exec->PixelTexGenParameterfSGIS = _mesa_PixelTexGenParameterfSGIS;
 455    exec->PixelTexGenParameterfvSGIS = _mesa_PixelTexGenParameterfvSGIS;
 456    exec->GetPixelTexGenParameterivSGIS = _mesa_GetPixelTexGenParameterivSGIS;
 457    exec->GetPixelTexGenParameterfvSGIS = _mesa_GetPixelTexGenParameterfvSGIS;
 458 #endif
 459
 460    /* 30. GL_EXT_vertex_array */
 461 #if _HAVE_FULL_GL
 462    exec->ColorPointerEXT = _mesa_ColorPointerEXT;
 463    exec->EdgeFlagPointerEXT = _mesa_EdgeFlagPointerEXT;
 464    exec->IndexPointerEXT = _mesa_IndexPointerEXT;
 465    exec->NormalPointerEXT = _mesa_NormalPointerEXT;
 466    exec->TexCoordPointerEXT = _mesa_TexCoordPointerEXT;
 467    exec->VertexPointerEXT = _mesa_VertexPointerEXT;
 468 #endif
 469
 470    /* 37. GL_EXT_blend_minmax */
 471 #if 0
 472    exec->BlendEquationEXT = _mesa_BlendEquationEXT;
 473 #endif
 474
 475    /* 54. GL_EXT_point_parameters */
 476 #if _HAVE_FULL_GL
 477    exec->PointParameterfEXT = _mesa_PointParameterfEXT;
 478    exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;
 479 #endif
 480
 481    /* 78. GL_EXT_paletted_texture */
 482 #if 0
 483    exec->ColorTableEXT = _mesa_ColorTableEXT;
 484    exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;
 485 #endif
 486 #if _HAVE_FULL_GL
 487    exec->GetColorTableEXT = _mesa_GetColorTable;
 488    exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
 489    exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
 490 #endif
 491
 492    /* 97. GL_EXT_compiled_vertex_array */
 493 #if _HAVE_FULL_GL
 494    exec->LockArraysEXT = _mesa_LockArraysEXT;
 495    exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;
 496 #endif
 497
 498    /* 148. GL_EXT_multi_draw_arrays */
 499 #if _HAVE_FULL_GL
 500    exec->MultiDrawArraysEXT = _mesa_MultiDrawArraysEXT;
 501    exec->MultiDrawElementsEXT = _mesa_MultiDrawElementsEXT;
 502 #endif
 503
 504    /* 173. GL_INGR_blend_func_separate */
 505 #if _HAVE_FULL_GL
 506    exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT;
 507 #endif
 508
 509    /* 196. GL_MESA_resize_buffers */
 510 #if _HAVE_FULL_GL
 511    exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;
 512 #endif
 513
 514    /* 197. GL_MESA_window_pos */
 515 #if _HAVE_FULL_GL
 516    exec->WindowPos2dMESA = _mesa_WindowPos2dMESA;
 517    exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA;
 518    exec->WindowPos2fMESA = _mesa_WindowPos2fMESA;
 519    exec->WindowPos2fvMESA = _mesa_WindowPos2fvMESA;
 520    exec->WindowPos2iMESA = _mesa_WindowPos2iMESA;
 521    exec->WindowPos2ivMESA = _mesa_WindowPos2ivMESA;
 522    exec->WindowPos2sMESA = _mesa_WindowPos2sMESA;
 523    exec->WindowPos2svMESA = _mesa_WindowPos2svMESA;
 524    exec->WindowPos3dMESA = _mesa_WindowPos3dMESA;
 525    exec->WindowPos3dvMESA = _mesa_WindowPos3dvMESA;
 526    exec->WindowPos3fMESA = _mesa_WindowPos3fMESA;
 527    exec->WindowPos3fvMESA = _mesa_WindowPos3fvMESA;
 528    exec->WindowPos3iMESA = _mesa_WindowPos3iMESA;
 529    exec->WindowPos3ivMESA = _mesa_WindowPos3ivMESA;
 530    exec->WindowPos3sMESA = _mesa_WindowPos3sMESA;
 531    exec->WindowPos3svMESA = _mesa_WindowPos3svMESA;
 532    exec->WindowPos4dMESA = _mesa_WindowPos4dMESA;
 533    exec->WindowPos4dvMESA = _mesa_WindowPos4dvMESA;
 534    exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;
 535    exec->WindowPos4fvMESA = _mesa_WindowPos4fvMESA;
 536    exec->WindowPos4iMESA = _mesa_WindowPos4iMESA;
 537    exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA;
 538    exec->WindowPos4sMESA = _mesa_WindowPos4sMESA;
 539    exec->WindowPos4svMESA = _mesa_WindowPos4svMESA;
 540 #endif
 541
 542    /* 200. GL_IBM_multimode_draw_arrays */
 543 #if _HAVE_FULL_GL
 544    exec->MultiModeDrawArraysIBM = _mesa_MultiModeDrawArraysIBM;
 545    exec->MultiModeDrawElementsIBM = _mesa_MultiModeDrawElementsIBM;
 546 #endif
 547
 548    /* 233. GL_NV_vertex_program */
 549 #if FEATURE_NV_vertex_program
 550    exec->BindProgramNV = _mesa_BindProgram;
 551    exec->DeleteProgramsNV = _mesa_DeletePrograms;
 552    exec->ExecuteProgramNV = _mesa_ExecuteProgramNV;
 553    exec->GenProgramsNV = _mesa_GenPrograms;
 554    exec->AreProgramsResidentNV = _mesa_AreProgramsResidentNV;
 555    exec->RequestResidentProgramsNV = _mesa_RequestResidentProgramsNV;
 556    exec->GetProgramParameterfvNV = _mesa_GetProgramParameterfvNV;
 557    exec->GetProgramParameterdvNV = _mesa_GetProgramParameterdvNV;
 558    exec->GetProgramivNV = _mesa_GetProgramivNV;
 559    exec->GetProgramStringNV = _mesa_GetProgramStringNV;
 560    exec->GetTrackMatrixivNV = _mesa_GetTrackMatrixivNV;
 561    exec->GetVertexAttribdvNV = _mesa_GetVertexAttribdvNV;
 562    exec->GetVertexAttribfvNV = _mesa_GetVertexAttribfvNV;
 563    exec->GetVertexAttribivNV = _mesa_GetVertexAttribivNV;
 564    exec->GetVertexAttribPointervNV = _mesa_GetVertexAttribPointervNV;
 565    exec->IsProgramNV = _mesa_IsProgram;
 566    exec->LoadProgramNV = _mesa_LoadProgramNV;
 567    exec->ProgramParameter4dNV = _mesa_ProgramParameter4dNV;
 568    exec->ProgramParameter4dvNV = _mesa_ProgramParameter4dvNV;
 569    exec->ProgramParameter4fNV = _mesa_ProgramParameter4fNV;
 570    exec->ProgramParameter4fvNV = _mesa_ProgramParameter4fvNV;
 571    exec->ProgramParameters4dvNV = _mesa_ProgramParameters4dvNV;
 572    exec->ProgramParameters4fvNV = _mesa_ProgramParameters4fvNV;
 573    exec->TrackMatrixNV = _mesa_TrackMatrixNV;
 574    exec->VertexAttribPointerNV = _mesa_VertexAttribPointerNV;
 575    /* glVertexAttrib*NV functions handled in api_loopback.c */
 576 #endif
 577
 578    /* 282. GL_NV_fragment_program */
 579 #if FEATURE_NV_fragment_program
 580    exec->ProgramNamedParameter4fNV = _mesa_ProgramNamedParameter4fNV;
 581    exec->ProgramNamedParameter4dNV = _mesa_ProgramNamedParameter4dNV;
 582    exec->ProgramNamedParameter4fvNV = _mesa_ProgramNamedParameter4fvNV;
 583    exec->ProgramNamedParameter4dvNV = _mesa_ProgramNamedParameter4dvNV;
 584    exec->GetProgramNamedParameterfvNV = _mesa_GetProgramNamedParameterfvNV;
 585    exec->GetProgramNamedParameterdvNV = _mesa_GetProgramNamedParameterdvNV;
 586    exec->ProgramLocalParameter4dARB = _mesa_ProgramLocalParameter4dARB;
 587    exec->ProgramLocalParameter4dvARB = _mesa_ProgramLocalParameter4dvARB;
 588    exec->ProgramLocalParameter4fARB = _mesa_ProgramLocalParameter4fARB;
 589    exec->ProgramLocalParameter4fvARB = _mesa_ProgramLocalParameter4fvARB;
 590    exec->GetProgramLocalParameterdvARB = _mesa_GetProgramLocalParameterdvARB;
 591    exec->GetProgramLocalParameterfvARB = _mesa_GetProgramLocalParameterfvARB;
 592 #endif
 593
 594    /* 262. GL_NV_point_sprite */
 595 #if _HAVE_FULL_GL
 596    exec->PointParameteriNV = _mesa_PointParameteriNV;
 597    exec->PointParameterivNV = _mesa_PointParameterivNV;
 598 #endif
 599
 600    /* 268. GL_EXT_stencil_two_side */
 601 #if _HAVE_FULL_GL
 602    exec->ActiveStencilFaceEXT = _mesa_ActiveStencilFaceEXT;
 603 #endif
 604
 605    /* ???. GL_EXT_depth_bounds_test */
 606    exec->DepthBoundsEXT = _mesa_DepthBoundsEXT;
 607
 608    /* ARB 1. GL_ARB_multitexture */
 609 #if _HAVE_FULL_GL
 610    exec->ActiveTextureARB = _mesa_ActiveTextureARB;
 611    exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;
 612 #endif
 613
 614    /* ARB 3. GL_ARB_transpose_matrix */
 615 #if _HAVE_FULL_GL
 616    exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;
 617    exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;
 618    exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;
 619    exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;
 620 #endif
 621
 622    /* ARB 5. GL_ARB_multisample */
 623 #if _HAVE_FULL_GL
 624    exec->SampleCoverageARB = _mesa_SampleCoverageARB;
 625 #endif
 626
 627    /* ARB 12. GL_ARB_texture_compression */
 628 #if _HAVE_FULL_GL
 629    exec->CompressedTexImage3DARB = _mesa_CompressedTexImage3DARB;
 630    exec->CompressedTexImage2DARB = _mesa_CompressedTexImage2DARB;
 631    exec->CompressedTexImage1DARB = _mesa_CompressedTexImage1DARB;
 632    exec->CompressedTexSubImage3DARB = _mesa_CompressedTexSubImage3DARB;
 633    exec->CompressedTexSubImage2DARB = _mesa_CompressedTexSubImage2DARB;
 634    exec->CompressedTexSubImage1DARB = _mesa_CompressedTexSubImage1DARB;
 635    exec->GetCompressedTexImageARB = _mesa_GetCompressedTexImageARB;
 636 #endif
 637
 638    /* ARB 14. GL_ARB_point_parameters */
 639    /* reuse EXT_point_parameters functions */
 640
 641    /* ARB 26. GL_ARB_vertex_program */
 642    /* ARB 27. GL_ARB_fragment_program */
 643 #if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
 644    /* glVertexAttrib1sARB aliases glVertexAttrib1sNV */
 645    /* glVertexAttrib1fARB aliases glVertexAttrib1fNV */
 646    /* glVertexAttrib1dARB aliases glVertexAttrib1dNV */
 647    /* glVertexAttrib2sARB aliases glVertexAttrib2sNV */
 648    /* glVertexAttrib2fARB aliases glVertexAttrib2fNV */
 649    /* glVertexAttrib2dARB aliases glVertexAttrib2dNV */
 650    /* glVertexAttrib3sARB aliases glVertexAttrib3sNV */
 651    /* glVertexAttrib3fARB aliases glVertexAttrib3fNV */
 652    /* glVertexAttrib3dARB aliases glVertexAttrib3dNV */
 653    /* glVertexAttrib4sARB aliases glVertexAttrib4sNV */
 654    /* glVertexAttrib4fARB aliases glVertexAttrib4fNV */
 655    /* glVertexAttrib4dARB aliases glVertexAttrib4dNV */
 656    /* glVertexAttrib4NubARB aliases glVertexAttrib4NubNV */
 657    /* glVertexAttrib1svARB aliases glVertexAttrib1svNV */
 658    /* glVertexAttrib1fvARB aliases glVertexAttrib1fvNV */
 659    /* glVertexAttrib1dvARB aliases glVertexAttrib1dvNV */
 660    /* glVertexAttrib2svARB aliases glVertexAttrib2svNV */
 661    /* glVertexAttrib2fvARB aliases glVertexAttrib2fvNV */
 662    /* glVertexAttrib2dvARB aliases glVertexAttrib2dvNV */
 663    /* glVertexAttrib3svARB aliases glVertexAttrib3svNV */
 664    /* glVertexAttrib3fvARB aliases glVertexAttrib3fvNV */
 665    /* glVertexAttrib3dvARB aliases glVertexAttrib3dvNV */
 666    /* glVertexAttrib4svARB aliases glVertexAttrib4svNV */
 667    /* glVertexAttrib4fvARB aliases glVertexAttrib4fvNV */
 668    /* glVertexAttrib4dvARB aliases glVertexAttrib4dvNV */
 669    /* glVertexAttrib4NubvARB aliases glVertexAttrib4NubvNV */
 670    /* glVertexAttrib4bvARB handled in api_loopback.c */
 671    /* glVertexAttrib4ivARB handled in api_loopback.c */
 672    /* glVertexAttrib4ubvARB handled in api_loopback.c */
 673    /* glVertexAttrib4usvARB handled in api_loopback.c */
 674    /* glVertexAttrib4uivARB handled in api_loopback.c */
 675    /* glVertexAttrib4NbvARB handled in api_loopback.c */
 676    /* glVertexAttrib4NsvARB handled in api_loopback.c */
 677    /* glVertexAttrib4NivARB handled in api_loopback.c */
 678    /* glVertexAttrib4NusvARB handled in api_loopback.c */
 679    /* glVertexAttrib4NuivARB handled in api_loopback.c */
 680    exec->VertexAttribPointerARB = _mesa_VertexAttribPointerARB;
 681    exec->EnableVertexAttribArrayARB = _mesa_EnableVertexAttribArrayARB;
 682    exec->DisableVertexAttribArrayARB = _mesa_DisableVertexAttribArrayARB;
 683    exec->ProgramStringARB = _mesa_ProgramStringARB;
 684    /* glBindProgramARB aliases glBindProgramNV */
 685    /* glDeleteProgramsARB aliases glDeleteProgramsNV */
 686    /* glGenProgramsARB aliases glGenProgramsNV */
 687    /* glIsProgramARB aliases glIsProgramNV */
 688    /* glGetVertexAttribdvARB aliases glGetVertexAttribdvNV */
 689    /* glGetVertexAttribfvARB aliases glGetVertexAttribfvNV */
 690    /* glGetVertexAttribivARB aliases glGetVertexAttribivNV */
 691    /* glGetVertexAttribPointervARB aliases glGetVertexAttribPointervNV */
 692    exec->ProgramEnvParameter4dARB = _mesa_ProgramEnvParameter4dARB;
 693    exec->ProgramEnvParameter4dvARB = _mesa_ProgramEnvParameter4dvARB;
 694    exec->ProgramEnvParameter4fARB = _mesa_ProgramEnvParameter4fARB;
 695    exec->ProgramEnvParameter4fvARB = _mesa_ProgramEnvParameter4fvARB;
 696    exec->ProgramLocalParameter4dARB = _mesa_ProgramLocalParameter4dARB;
 697    exec->ProgramLocalParameter4dvARB = _mesa_ProgramLocalParameter4dvARB;
 698    exec->ProgramLocalParameter4fARB = _mesa_ProgramLocalParameter4fARB;
 699    exec->ProgramLocalParameter4fvARB = _mesa_ProgramLocalParameter4fvARB;
 700    exec->GetProgramEnvParameterdvARB = _mesa_GetProgramEnvParameterdvARB;
 701    exec->GetProgramEnvParameterfvARB = _mesa_GetProgramEnvParameterfvARB;
 702    exec->GetProgramLocalParameterdvARB = _mesa_GetProgramLocalParameterdvARB;
 703    exec->GetProgramLocalParameterfvARB = _mesa_GetProgramLocalParameterfvARB;
 704    exec->GetProgramivARB = _mesa_GetProgramivARB;
 705    exec->GetProgramStringARB = _mesa_GetProgramStringARB;
 706 #endif
 707
 708    /* ARB 28. GL_ARB_vertex_buffer_object */
 709 #if FEATURE_ARB_vertex_buffer_object
 710    exec->BindBufferARB = _mesa_BindBufferARB;
 711    exec->BufferDataARB = _mesa_BufferDataARB;
 712    exec->BufferSubDataARB = _mesa_BufferSubDataARB;
 713    exec->DeleteBuffersARB = _mesa_DeleteBuffersARB;
 714    exec->GenBuffersARB = _mesa_GenBuffersARB;
 715    exec->GetBufferParameterivARB = _mesa_GetBufferParameterivARB;
 716    exec->GetBufferPointervARB = _mesa_GetBufferPointervARB;
 717    exec->GetBufferSubDataARB = _mesa_GetBufferSubDataARB;
 718    exec->IsBufferARB = _mesa_IsBufferARB;
 719    exec->MapBufferARB = _mesa_MapBufferARB;
 720    exec->UnmapBufferARB = _mesa_UnmapBufferARB;
 721 #endif
 722
 723 #if FEATURE_ARB_occlusion_query
 724    exec->GenQueriesARB = _mesa_GenQueriesARB;
 725    exec->DeleteQueriesARB = _mesa_DeleteQueriesARB;
 726    exec->IsQueryARB = _mesa_IsQueryARB;
 727    exec->BeginQueryARB = _mesa_BeginQueryARB;
 728    exec->EndQueryARB = _mesa_EndQueryARB;
 729    exec->GetQueryivARB = _mesa_GetQueryivARB;
 730    exec->GetQueryObjectivARB = _mesa_GetQueryObjectivARB;
 731    exec->GetQueryObjectuivARB = _mesa_GetQueryObjectuivARB;
 732 #endif
 733 }
 734
 735 /*@}*/
 736
 737
 738 /**********************************************************************/
 739 /** \name State update logic */
 740 /*@{*/
 741
 742
 743 static void
 744 update_separate_specular( GLcontext *ctx )
 745 {
 746    if (NEED_SECONDARY_COLOR(ctx))
 747       ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
 748    else
 749       ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
 750 }
 751
 752
 753 /**
 754  * Update state dependent on vertex arrays.
 755  */
 756 static void
 757 update_arrays( GLcontext *ctx )
 758 {
 759    GLuint i, min;
 760
 761    /* find min of _MaxElement values for all enabled arrays */
 762
 763    /* 0 */
 764    if (ctx->VertexProgram.Enabled
 765        && ctx->Array.VertexAttrib[VERT_ATTRIB_POS].Enabled) {
 766       min = ctx->Array.VertexAttrib[VERT_ATTRIB_POS]._MaxElement;
 767    }
 768    else if (ctx->Array.Vertex.Enabled) {
 769       min = ctx->Array.Vertex._MaxElement;
 770    }
 771    else {
 772       /* can't draw anything without vertex positions! */
 773       min = 0;
 774    }
 775
 776    /* 1 */
 777    if (ctx->VertexProgram.Enabled
 778        && ctx->Array.VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
 779       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_WEIGHT]._MaxElement);
 780    }
 781    /* no conventional vertex weight array */
 782
 783    /* 2 */
 784    if (ctx->VertexProgram.Enabled
 785        && ctx->Array.VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
 786       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_NORMAL]._MaxElement);
 787    }
 788    else if (ctx->Array.Normal.Enabled) {
 789       min = MIN2(min, ctx->Array.Normal._MaxElement);
 790    }
 791
 792    /* 3 */
 793    if (ctx->VertexProgram.Enabled
 794        && ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
 795       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR0]._MaxElement);
 796    }
 797    else if (ctx->Array.Color.Enabled) {
 798       min = MIN2(min, ctx->Array.Color._MaxElement);
 799    }
 800
 801    /* 4 */
 802    if (ctx->VertexProgram.Enabled
 803        && ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
 804       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR1]._MaxElement);
 805    }
 806    else if (ctx->Array.SecondaryColor.Enabled) {
 807       min = MIN2(min, ctx->Array.SecondaryColor._MaxElement);
 808    }
 809
 810    /* 5 */
 811    if (ctx->VertexProgram.Enabled
 812        && ctx->Array.VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
 813       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_FOG]._MaxElement);
 814    }
 815    else if (ctx->Array.FogCoord.Enabled) {
 816       min = MIN2(min, ctx->Array.FogCoord._MaxElement);
 817    }
 818
 819    /* 6 */
 820    if (ctx->VertexProgram.Enabled
 821        && ctx->Array.VertexAttrib[VERT_ATTRIB_SIX].Enabled) {
 822       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_SIX]._MaxElement);
 823    }
 824
 825    /* 7 */
 826    if (ctx->VertexProgram.Enabled
 827        && ctx->Array.VertexAttrib[VERT_ATTRIB_SEVEN].Enabled) {
 828       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_SEVEN]._MaxElement);
 829    }
 830
 831    /* 8..15 */
 832    for (i = VERT_ATTRIB_TEX0; i < VERT_ATTRIB_MAX; i++) {
 833       if (ctx->VertexProgram.Enabled
 834           && ctx->Array.VertexAttrib[i].Enabled) {
 835          min = MIN2(min, ctx->Array.VertexAttrib[i]._MaxElement);
 836       }
 837       else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits
 838                && ctx->Array.TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
 839          min = MIN2(min, ctx->Array.TexCoord[i - VERT_ATTRIB_TEX0]._MaxElement);
 840       }
 841    }
 842
 843    if (ctx->Array.Index.Enabled) {
 844       min = MIN2(min, ctx->Array.Index._MaxElement);
 845    }
 846
 847    if (ctx->Array.EdgeFlag.Enabled) {
 848       min = MIN2(min, ctx->Array.EdgeFlag._MaxElement);
 849    }
 850
 851    /* _MaxElement is one past the last legal array element */
 852    ctx->Array._MaxElement = min;
 853 }
 854
 855
 856
 857 /*
 858  * If __GLcontextRec::NewState is non-zero then this function \b must be called
 859  * before rendering any primitive.  Basically, function pointers and
 860  * miscellaneous flags are updated to reflect the current state of the state
 861  * machine.
 862  *
 863  * Calls dd_function_table::UpdateState to perform any internal state management
 864  * necessary.
 865  *
 866  * \sa _mesa_update_modelview_project(), _mesa_update_texture(),
 867  * _mesa_update_buffers(), _mesa_update_polygon(), _mesa_update_lighting() and
 868  * _mesa_update_tnl_spaces().
 869  */
 870 void _mesa_update_state( GLcontext *ctx )
 871 {
 872    GLuint new_state = ctx->NewState;
 873
 874    if (MESA_VERBOSE & VERBOSE_STATE)
 875       _mesa_print_state("_mesa_update_state", new_state);
 876
 877    if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
 878       _mesa_update_modelview_project( ctx, new_state );
 879
 880    if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX))
 881       _mesa_update_texture( ctx, new_state );
 882
 883    if (new_state & (_NEW_SCISSOR|_NEW_BUFFERS))
 884       _mesa_update_buffers( ctx );
 885
 886    if (new_state & _NEW_POLYGON)
 887       _mesa_update_polygon( ctx );
 888
 889    if (new_state & _NEW_LIGHT)
 890       _mesa_update_lighting( ctx );
 891
 892    if (new_state & _IMAGE_NEW_TRANSFER_STATE)
 893       _mesa_update_pixel( ctx, new_state );
 894
 895    if (new_state & _DD_NEW_SEPARATE_SPECULAR)
 896       update_separate_specular( ctx );
 897
 898    if (new_state & (_NEW_ARRAY | _NEW_PROGRAM))
 899       update_arrays( ctx );
 900
 901    /* ctx->_NeedEyeCoords is now up to date.
 902     *
 903     * If the truth value of this variable has changed, update for the
 904     * new lighting space and recompute the positions of lights and the
 905     * normal transform.
 906     *
 907     * If the lighting space hasn't changed, may still need to recompute
 908     * light positions & normal transforms for other reasons.
 909     */
 910    if (new_state & _MESA_NEW_NEED_EYE_COORDS)
 911       _mesa_update_tnl_spaces( ctx, new_state );
 912
 913    /*
 914     * Give the driver a chance to act upon the new_state flags.
 915     * The driver might plug in different span functions, for example.
 916     * Also, this is where the driver can invalidate the state of any
 917     * active modules (such as swrast_setup, swrast, tnl, etc).
 918     *
 919     * Set ctx->NewState to zero to avoid recursion if
 920     * Driver.UpdateState() has to call FLUSH_VERTICES().  (fixed?)
 921     */
 922    new_state = ctx->NewState;
 923    ctx->NewState = 0;
 924    ctx->Driver.UpdateState(ctx, new_state);
 925    ctx->Array.NewState = 0;
 926 }
 927
 928 /*@}*/