src/mesa/main/state.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.2
   4  *
   5  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25
  26 /**
  27  * \file state.c
  28  * State management.
  29  *
  30  * This file manages recalculation of derived values in the __GLcontextRec.
  31  * Also, this is where we initialize the API dispatch table.
  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 #if FEATURE_ARB_shader_objects
  88 #include "shaderobjects.h"
  89 #endif
  90 #include "debug.h"
  91
  92 /* #include "math/m_matrix.h" */
  93 /* #include "math/m_xform.h" */
  94
  95
  96 /**********************************************************************/
  97 /** \name Dispatch table setup */
  98 /*@{*/
  99
 100 /**
 101  * Generic no-op dispatch function.
 102  *
 103  * Used in replacement of the functions which are not part of Mesa subset.
 104  *
 105  * Displays a message.
 106  */
 107 static int
 108 generic_noop(void)
 109 {
 110    _mesa_problem(NULL, "User called no-op dispatch function (an unsupported extension function?)");
 111    return 0;
 112 }
 113
 114
 115 /**
 116  * Set all pointers in the given dispatch table to point to a
 117  * generic no-op function - generic_noop().
 118  *
 119  * \param table dispatch table.
 120  * \param tableSize dispatch table size.
 121  */
 122 void
 123 _mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize)
 124 {
 125    typedef void (*func_ptr_t)();
 126    GLuint i;
 127    func_ptr_t *dispatch = (func_ptr_t *) table;
 128    for (i = 0; i < tableSize; i++) {
 129       dispatch[i] = (func_ptr_t)generic_noop;
 130    }
 131 }
 132
 133
 134 /**
 135  * Initialize a dispatch table with pointers to Mesa's immediate-mode
 136  * commands.
 137  *
 138  * Pointers to glBegin()/glEnd() object commands and a few others
 139  * are provided via the GLvertexformat interface.
 140  *
 141  * \param exec dispatch table.
 142  * \param tableSize dispatch table size.
 143  */
 144 void
 145 _mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize)
 146 {
 147    /* first initialize all dispatch slots to no-op */
 148    _mesa_init_no_op_table(exec, tableSize);
 149
 150 #if _HAVE_FULL_GL
 151    _mesa_loopback_init_api_table( exec );
 152 #endif
 153
 154    /* load the dispatch slots we understand */
 155    exec->AlphaFunc = _mesa_AlphaFunc;
 156    exec->BlendFunc = _mesa_BlendFunc;
 157    exec->Clear = _mesa_Clear;
 158    exec->ClearColor = _mesa_ClearColor;
 159    exec->ClearStencil = _mesa_ClearStencil;
 160    exec->ColorMask = _mesa_ColorMask;
 161    exec->CullFace = _mesa_CullFace;
 162    exec->Disable = _mesa_Disable;
 163    exec->DrawBuffer = _mesa_DrawBuffer;
 164    exec->Enable = _mesa_Enable;
 165    exec->Finish = _mesa_Finish;
 166    exec->Flush = _mesa_Flush;
 167    exec->FrontFace = _mesa_FrontFace;
 168    exec->Frustum = _mesa_Frustum;
 169    exec->GetError = _mesa_GetError;
 170    exec->GetFloatv = _mesa_GetFloatv;
 171    exec->GetString = _mesa_GetString;
 172    exec->InitNames = _mesa_InitNames;
 173    exec->LineStipple = _mesa_LineStipple;
 174    exec->LineWidth = _mesa_LineWidth;
 175    exec->LoadIdentity = _mesa_LoadIdentity;
 176    exec->LoadMatrixf = _mesa_LoadMatrixf;
 177    exec->LoadName = _mesa_LoadName;
 178    exec->LogicOp = _mesa_LogicOp;
 179    exec->MatrixMode = _mesa_MatrixMode;
 180    exec->MultMatrixf = _mesa_MultMatrixf;
 181    exec->Ortho = _mesa_Ortho;
 182    exec->PixelStorei = _mesa_PixelStorei;
 183    exec->PopMatrix = _mesa_PopMatrix;
 184    exec->PopName = _mesa_PopName;
 185    exec->PushMatrix = _mesa_PushMatrix;
 186    exec->PushName = _mesa_PushName;
 187    exec->RasterPos2f = _mesa_RasterPos2f;
 188    exec->RasterPos2fv = _mesa_RasterPos2fv;
 189    exec->RasterPos2i = _mesa_RasterPos2i;
 190    exec->RasterPos2iv = _mesa_RasterPos2iv;
 191    exec->ReadBuffer = _mesa_ReadBuffer;
 192    exec->RenderMode = _mesa_RenderMode;
 193    exec->Rotatef = _mesa_Rotatef;
 194    exec->Scalef = _mesa_Scalef;
 195    exec->Scissor = _mesa_Scissor;
 196    exec->SelectBuffer = _mesa_SelectBuffer;
 197    exec->ShadeModel = _mesa_ShadeModel;
 198    exec->StencilFunc = _mesa_StencilFunc;
 199    exec->StencilMask = _mesa_StencilMask;
 200    exec->StencilOp = _mesa_StencilOp;
 201    exec->TexEnvfv = _mesa_TexEnvfv;
 202    exec->TexEnvi = _mesa_TexEnvi;
 203    exec->TexImage2D = _mesa_TexImage2D;
 204    exec->TexParameteri = _mesa_TexParameteri;
 205    exec->Translatef = _mesa_Translatef;
 206    exec->Viewport = _mesa_Viewport;
 207 #if _HAVE_FULL_GL
 208    exec->Accum = _mesa_Accum;
 209    exec->Bitmap = _mesa_Bitmap;
 210    exec->CallList = _mesa_CallList;
 211    exec->CallLists = _mesa_CallLists;
 212    exec->ClearAccum = _mesa_ClearAccum;
 213    exec->ClearDepth = _mesa_ClearDepth;
 214    exec->ClearIndex = _mesa_ClearIndex;
 215    exec->ClipPlane = _mesa_ClipPlane;
 216    exec->ColorMaterial = _mesa_ColorMaterial;
 217    exec->CopyPixels = _mesa_CopyPixels;
 218    exec->CullParameterfvEXT = _mesa_CullParameterfvEXT;
 219    exec->CullParameterdvEXT = _mesa_CullParameterdvEXT;
 220    exec->DeleteLists = _mesa_DeleteLists;
 221    exec->DepthFunc = _mesa_DepthFunc;
 222    exec->DepthMask = _mesa_DepthMask;
 223    exec->DepthRange = _mesa_DepthRange;
 224    exec->DrawPixels = _mesa_DrawPixels;
 225    exec->EndList = _mesa_EndList;
 226    exec->FeedbackBuffer = _mesa_FeedbackBuffer;
 227    exec->FogCoordPointerEXT = _mesa_FogCoordPointerEXT;
 228    exec->Fogf = _mesa_Fogf;
 229    exec->Fogfv = _mesa_Fogfv;
 230    exec->Fogi = _mesa_Fogi;
 231    exec->Fogiv = _mesa_Fogiv;
 232    exec->GenLists = _mesa_GenLists;
 233    exec->GetClipPlane = _mesa_GetClipPlane;
 234    exec->GetBooleanv = _mesa_GetBooleanv;
 235    exec->GetDoublev = _mesa_GetDoublev;
 236    exec->GetIntegerv = _mesa_GetIntegerv;
 237    exec->GetLightfv = _mesa_GetLightfv;
 238    exec->GetLightiv = _mesa_GetLightiv;
 239    exec->GetMapdv = _mesa_GetMapdv;
 240    exec->GetMapfv = _mesa_GetMapfv;
 241    exec->GetMapiv = _mesa_GetMapiv;
 242    exec->GetMaterialfv = _mesa_GetMaterialfv;
 243    exec->GetMaterialiv = _mesa_GetMaterialiv;
 244    exec->GetPixelMapfv = _mesa_GetPixelMapfv;
 245    exec->GetPixelMapuiv = _mesa_GetPixelMapuiv;
 246    exec->GetPixelMapusv = _mesa_GetPixelMapusv;
 247    exec->GetPolygonStipple = _mesa_GetPolygonStipple;
 248    exec->GetTexEnvfv = _mesa_GetTexEnvfv;
 249    exec->GetTexEnviv = _mesa_GetTexEnviv;
 250    exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv;
 251    exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv;
 252    exec->GetTexParameterfv = _mesa_GetTexParameterfv;
 253    exec->GetTexParameteriv = _mesa_GetTexParameteriv;
 254    exec->GetTexGendv = _mesa_GetTexGendv;
 255    exec->GetTexGenfv = _mesa_GetTexGenfv;
 256    exec->GetTexGeniv = _mesa_GetTexGeniv;
 257    exec->GetTexImage = _mesa_GetTexImage;
 258    exec->Hint = _mesa_Hint;
 259    exec->IndexMask = _mesa_IndexMask;
 260    exec->IsEnabled = _mesa_IsEnabled;
 261    exec->IsList = _mesa_IsList;
 262    exec->LightModelf = _mesa_LightModelf;
 263    exec->LightModelfv = _mesa_LightModelfv;
 264    exec->LightModeli = _mesa_LightModeli;
 265    exec->LightModeliv = _mesa_LightModeliv;
 266    exec->Lightf = _mesa_Lightf;
 267    exec->Lightfv = _mesa_Lightfv;
 268    exec->Lighti = _mesa_Lighti;
 269    exec->Lightiv = _mesa_Lightiv;
 270    exec->ListBase = _mesa_ListBase;
 271    exec->LoadMatrixd = _mesa_LoadMatrixd;
 272    exec->Map1d = _mesa_Map1d;
 273    exec->Map1f = _mesa_Map1f;
 274    exec->Map2d = _mesa_Map2d;
 275    exec->Map2f = _mesa_Map2f;
 276    exec->MapGrid1d = _mesa_MapGrid1d;
 277    exec->MapGrid1f = _mesa_MapGrid1f;
 278    exec->MapGrid2d = _mesa_MapGrid2d;
 279    exec->MapGrid2f = _mesa_MapGrid2f;
 280    exec->MultMatrixd = _mesa_MultMatrixd;
 281    exec->NewList = _mesa_NewList;
 282    exec->PassThrough = _mesa_PassThrough;
 283    exec->PixelMapfv = _mesa_PixelMapfv;
 284    exec->PixelMapuiv = _mesa_PixelMapuiv;
 285    exec->PixelMapusv = _mesa_PixelMapusv;
 286    exec->PixelStoref = _mesa_PixelStoref;
 287    exec->PixelTransferf = _mesa_PixelTransferf;
 288    exec->PixelTransferi = _mesa_PixelTransferi;
 289    exec->PixelZoom = _mesa_PixelZoom;
 290    exec->PointSize = _mesa_PointSize;
 291    exec->PolygonMode = _mesa_PolygonMode;
 292    exec->PolygonOffset = _mesa_PolygonOffset;
 293    exec->PolygonStipple = _mesa_PolygonStipple;
 294    exec->PopAttrib = _mesa_PopAttrib;
 295    exec->PushAttrib = _mesa_PushAttrib;
 296    exec->RasterPos2d = _mesa_RasterPos2d;
 297    exec->RasterPos2dv = _mesa_RasterPos2dv;
 298    exec->RasterPos2s = _mesa_RasterPos2s;
 299    exec->RasterPos2sv = _mesa_RasterPos2sv;
 300    exec->RasterPos3d = _mesa_RasterPos3d;
 301    exec->RasterPos3dv = _mesa_RasterPos3dv;
 302    exec->RasterPos3f = _mesa_RasterPos3f;
 303    exec->RasterPos3fv = _mesa_RasterPos3fv;
 304    exec->RasterPos3i = _mesa_RasterPos3i;
 305    exec->RasterPos3iv = _mesa_RasterPos3iv;
 306    exec->RasterPos3s = _mesa_RasterPos3s;
 307    exec->RasterPos3sv = _mesa_RasterPos3sv;
 308    exec->RasterPos4d = _mesa_RasterPos4d;
 309    exec->RasterPos4dv = _mesa_RasterPos4dv;
 310    exec->RasterPos4f = _mesa_RasterPos4f;
 311    exec->RasterPos4fv = _mesa_RasterPos4fv;
 312    exec->RasterPos4i = _mesa_RasterPos4i;
 313    exec->RasterPos4iv = _mesa_RasterPos4iv;
 314    exec->RasterPos4s = _mesa_RasterPos4s;
 315    exec->RasterPos4sv = _mesa_RasterPos4sv;
 316    exec->ReadPixels = _mesa_ReadPixels;
 317    exec->Rotated = _mesa_Rotated;
 318    exec->Scaled = _mesa_Scaled;
 319    exec->SecondaryColorPointerEXT = _mesa_SecondaryColorPointerEXT;
 320    exec->TexEnvf = _mesa_TexEnvf;
 321    exec->TexEnviv = _mesa_TexEnviv;
 322    exec->TexGend = _mesa_TexGend;
 323    exec->TexGendv = _mesa_TexGendv;
 324    exec->TexGenf = _mesa_TexGenf;
 325    exec->TexGenfv = _mesa_TexGenfv;
 326    exec->TexGeni = _mesa_TexGeni;
 327    exec->TexGeniv = _mesa_TexGeniv;
 328    exec->TexImage1D = _mesa_TexImage1D;
 329    exec->TexParameterf = _mesa_TexParameterf;
 330    exec->TexParameterfv = _mesa_TexParameterfv;
 331    exec->TexParameteriv = _mesa_TexParameteriv;
 332    exec->Translated = _mesa_Translated;
 333 #endif
 334
 335    /* 1.1 */
 336    exec->BindTexture = _mesa_BindTexture;
 337    exec->DeleteTextures = _mesa_DeleteTextures;
 338    exec->GenTextures = _mesa_GenTextures;
 339 #if _HAVE_FULL_GL
 340    exec->AreTexturesResident = _mesa_AreTexturesResident;
 341    exec->AreTexturesResidentEXT = _mesa_AreTexturesResident;
 342    exec->ColorPointer = _mesa_ColorPointer;
 343    exec->CopyTexImage1D = _mesa_CopyTexImage1D;
 344    exec->CopyTexImage2D = _mesa_CopyTexImage2D;
 345    exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;
 346    exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;
 347    exec->DisableClientState = _mesa_DisableClientState;
 348    exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;
 349    exec->EnableClientState = _mesa_EnableClientState;
 350    exec->GenTexturesEXT = _mesa_GenTextures;
 351    exec->GetPointerv = _mesa_GetPointerv;
 352    exec->IndexPointer = _mesa_IndexPointer;
 353    exec->InterleavedArrays = _mesa_InterleavedArrays;
 354    exec->IsTexture = _mesa_IsTexture;
 355    exec->IsTextureEXT = _mesa_IsTexture;
 356    exec->NormalPointer = _mesa_NormalPointer;
 357    exec->PopClientAttrib = _mesa_PopClientAttrib;
 358    exec->PrioritizeTextures = _mesa_PrioritizeTextures;
 359    exec->PushClientAttrib = _mesa_PushClientAttrib;
 360    exec->TexCoordPointer = _mesa_TexCoordPointer;
 361    exec->TexSubImage1D = _mesa_TexSubImage1D;
 362    exec->TexSubImage2D = _mesa_TexSubImage2D;
 363    exec->VertexPointer = _mesa_VertexPointer;
 364 #endif
 365
 366    /* 1.2 */
 367 #if _HAVE_FULL_GL
 368    exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D;
 369    exec->TexImage3D = _mesa_TexImage3D;
 370    exec->TexSubImage3D = _mesa_TexSubImage3D;
 371 #endif
 372
 373    /* OpenGL 1.2  GL_ARB_imaging */
 374 #if _HAVE_FULL_GL
 375    exec->BlendColor = _mesa_BlendColor;
 376    exec->BlendEquation = _mesa_BlendEquation;
 377    exec->BlendEquationSeparateEXT = _mesa_BlendEquationSeparateEXT;
 378    exec->ColorSubTable = _mesa_ColorSubTable;
 379    exec->ColorTable = _mesa_ColorTable;
 380    exec->ColorTableParameterfv = _mesa_ColorTableParameterfv;
 381    exec->ColorTableParameteriv = _mesa_ColorTableParameteriv;
 382    exec->ConvolutionFilter1D = _mesa_ConvolutionFilter1D;
 383    exec->ConvolutionFilter2D = _mesa_ConvolutionFilter2D;
 384    exec->ConvolutionParameterf = _mesa_ConvolutionParameterf;
 385    exec->ConvolutionParameterfv = _mesa_ConvolutionParameterfv;
 386    exec->ConvolutionParameteri = _mesa_ConvolutionParameteri;
 387    exec->ConvolutionParameteriv = _mesa_ConvolutionParameteriv;
 388    exec->CopyColorSubTable = _mesa_CopyColorSubTable;
 389    exec->CopyColorTable = _mesa_CopyColorTable;
 390    exec->CopyConvolutionFilter1D = _mesa_CopyConvolutionFilter1D;
 391    exec->CopyConvolutionFilter2D = _mesa_CopyConvolutionFilter2D;
 392    exec->GetColorTable = _mesa_GetColorTable;
 393    exec->GetColorTableEXT = _mesa_GetColorTable;
 394    exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;
 395    exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
 396    exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;
 397    exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
 398    exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;
 399    exec->GetConvolutionFilterEXT = _mesa_GetConvolutionFilter;
 400    exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;
 401    exec->GetConvolutionParameterfvEXT = _mesa_GetConvolutionParameterfv;
 402    exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;
 403    exec->GetConvolutionParameterivEXT = _mesa_GetConvolutionParameteriv;
 404    exec->GetHistogram = _mesa_GetHistogram;
 405    exec->GetHistogramEXT = _mesa_GetHistogram;
 406    exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;
 407    exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
 408    exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;
 409    exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
 410    exec->GetMinmax = _mesa_GetMinmax;
 411    exec->GetMinmaxEXT = _mesa_GetMinmax;
 412    exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;
 413    exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
 414    exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;
 415    exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
 416    exec->GetSeparableFilter = _mesa_GetSeparableFilter;
 417    exec->GetSeparableFilterEXT = _mesa_GetSeparableFilter;
 418    exec->Histogram = _mesa_Histogram;
 419    exec->Minmax = _mesa_Minmax;
 420    exec->ResetHistogram = _mesa_ResetHistogram;
 421    exec->ResetMinmax = _mesa_ResetMinmax;
 422    exec->SeparableFilter2D = _mesa_SeparableFilter2D;
 423 #endif
 424
 425    /* 2. GL_EXT_blend_color */
 426 #if 0
 427 /*    exec->BlendColorEXT = _mesa_BlendColorEXT; */
 428 #endif
 429
 430    /* 3. GL_EXT_polygon_offset */
 431 #if _HAVE_FULL_GL
 432    exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;
 433 #endif
 434
 435    /* 6. GL_EXT_texture3d */
 436 #if 0
 437 /*    exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D; */
 438 /*    exec->TexImage3DEXT = _mesa_TexImage3DEXT; */
 439 /*    exec->TexSubImage3DEXT = _mesa_TexSubImage3D; */
 440 #endif
 441
 442    /* 11. GL_EXT_histogram */
 443 #if _HAVE_FULL_GL
 444    exec->GetHistogramEXT = _mesa_GetHistogram;
 445    exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
 446    exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
 447    exec->GetMinmaxEXT = _mesa_GetMinmax;
 448    exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
 449    exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
 450 #endif
 451
 452    /* ?. GL_SGIX_pixel_texture */
 453 #if _HAVE_FULL_GL
 454    exec->PixelTexGenSGIX = _mesa_PixelTexGenSGIX;
 455 #endif
 456
 457    /* 15. GL_SGIS_pixel_texture */
 458 #if _HAVE_FULL_GL
 459    exec->PixelTexGenParameteriSGIS = _mesa_PixelTexGenParameteriSGIS;
 460    exec->PixelTexGenParameterivSGIS = _mesa_PixelTexGenParameterivSGIS;
 461    exec->PixelTexGenParameterfSGIS = _mesa_PixelTexGenParameterfSGIS;
 462    exec->PixelTexGenParameterfvSGIS = _mesa_PixelTexGenParameterfvSGIS;
 463    exec->GetPixelTexGenParameterivSGIS = _mesa_GetPixelTexGenParameterivSGIS;
 464    exec->GetPixelTexGenParameterfvSGIS = _mesa_GetPixelTexGenParameterfvSGIS;
 465 #endif
 466
 467    /* 30. GL_EXT_vertex_array */
 468 #if _HAVE_FULL_GL
 469    exec->ColorPointerEXT = _mesa_ColorPointerEXT;
 470    exec->EdgeFlagPointerEXT = _mesa_EdgeFlagPointerEXT;
 471    exec->IndexPointerEXT = _mesa_IndexPointerEXT;
 472    exec->NormalPointerEXT = _mesa_NormalPointerEXT;
 473    exec->TexCoordPointerEXT = _mesa_TexCoordPointerEXT;
 474    exec->VertexPointerEXT = _mesa_VertexPointerEXT;
 475 #endif
 476
 477    /* 37. GL_EXT_blend_minmax */
 478 #if 0
 479    exec->BlendEquationEXT = _mesa_BlendEquationEXT;
 480 #endif
 481
 482    /* 54. GL_EXT_point_parameters */
 483 #if _HAVE_FULL_GL
 484    exec->PointParameterfEXT = _mesa_PointParameterfEXT;
 485    exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;
 486 #endif
 487
 488    /* 78. GL_EXT_paletted_texture */
 489 #if 0
 490    exec->ColorTableEXT = _mesa_ColorTableEXT;
 491    exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;
 492 #endif
 493 #if _HAVE_FULL_GL
 494    exec->GetColorTableEXT = _mesa_GetColorTable;
 495    exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
 496    exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
 497 #endif
 498
 499    /* 97. GL_EXT_compiled_vertex_array */
 500 #if _HAVE_FULL_GL
 501    exec->LockArraysEXT = _mesa_LockArraysEXT;
 502    exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;
 503 #endif
 504
 505    /* 148. GL_EXT_multi_draw_arrays */
 506 #if _HAVE_FULL_GL
 507    exec->MultiDrawArraysEXT = _mesa_MultiDrawArraysEXT;
 508    exec->MultiDrawElementsEXT = _mesa_MultiDrawElementsEXT;
 509 #endif
 510
 511    /* 173. GL_INGR_blend_func_separate */
 512 #if _HAVE_FULL_GL
 513    exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT;
 514 #endif
 515
 516    /* 196. GL_MESA_resize_buffers */
 517 #if _HAVE_FULL_GL
 518    exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;
 519 #endif
 520
 521    /* 197. GL_MESA_window_pos */
 522 #if _HAVE_FULL_GL
 523    exec->WindowPos2dMESA = _mesa_WindowPos2dMESA;
 524    exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA;
 525    exec->WindowPos2fMESA = _mesa_WindowPos2fMESA;
 526    exec->WindowPos2fvMESA = _mesa_WindowPos2fvMESA;
 527    exec->WindowPos2iMESA = _mesa_WindowPos2iMESA;
 528    exec->WindowPos2ivMESA = _mesa_WindowPos2ivMESA;
 529    exec->WindowPos2sMESA = _mesa_WindowPos2sMESA;
 530    exec->WindowPos2svMESA = _mesa_WindowPos2svMESA;
 531    exec->WindowPos3dMESA = _mesa_WindowPos3dMESA;
 532    exec->WindowPos3dvMESA = _mesa_WindowPos3dvMESA;
 533    exec->WindowPos3fMESA = _mesa_WindowPos3fMESA;
 534    exec->WindowPos3fvMESA = _mesa_WindowPos3fvMESA;
 535    exec->WindowPos3iMESA = _mesa_WindowPos3iMESA;
 536    exec->WindowPos3ivMESA = _mesa_WindowPos3ivMESA;
 537    exec->WindowPos3sMESA = _mesa_WindowPos3sMESA;
 538    exec->WindowPos3svMESA = _mesa_WindowPos3svMESA;
 539    exec->WindowPos4dMESA = _mesa_WindowPos4dMESA;
 540    exec->WindowPos4dvMESA = _mesa_WindowPos4dvMESA;
 541    exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;
 542    exec->WindowPos4fvMESA = _mesa_WindowPos4fvMESA;
 543    exec->WindowPos4iMESA = _mesa_WindowPos4iMESA;
 544    exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA;
 545    exec->WindowPos4sMESA = _mesa_WindowPos4sMESA;
 546    exec->WindowPos4svMESA = _mesa_WindowPos4svMESA;
 547 #endif
 548
 549    /* 200. GL_IBM_multimode_draw_arrays */
 550 #if _HAVE_FULL_GL
 551    exec->MultiModeDrawArraysIBM = _mesa_MultiModeDrawArraysIBM;
 552    exec->MultiModeDrawElementsIBM = _mesa_MultiModeDrawElementsIBM;
 553 #endif
 554
 555    /* 233. GL_NV_vertex_program */
 556 #if FEATURE_NV_vertex_program
 557    exec->BindProgramNV = _mesa_BindProgram;
 558    exec->DeleteProgramsNV = _mesa_DeletePrograms;
 559    exec->ExecuteProgramNV = _mesa_ExecuteProgramNV;
 560    exec->GenProgramsNV = _mesa_GenPrograms;
 561    exec->AreProgramsResidentNV = _mesa_AreProgramsResidentNV;
 562    exec->RequestResidentProgramsNV = _mesa_RequestResidentProgramsNV;
 563    exec->GetProgramParameterfvNV = _mesa_GetProgramParameterfvNV;
 564    exec->GetProgramParameterdvNV = _mesa_GetProgramParameterdvNV;
 565    exec->GetProgramivNV = _mesa_GetProgramivNV;
 566    exec->GetProgramStringNV = _mesa_GetProgramStringNV;
 567    exec->GetTrackMatrixivNV = _mesa_GetTrackMatrixivNV;
 568    exec->GetVertexAttribdvNV = _mesa_GetVertexAttribdvNV;
 569    exec->GetVertexAttribfvNV = _mesa_GetVertexAttribfvNV;
 570    exec->GetVertexAttribivNV = _mesa_GetVertexAttribivNV;
 571    exec->GetVertexAttribPointervNV = _mesa_GetVertexAttribPointervNV;
 572    exec->IsProgramNV = _mesa_IsProgram;
 573    exec->LoadProgramNV = _mesa_LoadProgramNV;
 574    exec->ProgramParameter4dNV = _mesa_ProgramParameter4dNV;
 575    exec->ProgramParameter4dvNV = _mesa_ProgramParameter4dvNV;
 576    exec->ProgramParameter4fNV = _mesa_ProgramParameter4fNV;
 577    exec->ProgramParameter4fvNV = _mesa_ProgramParameter4fvNV;
 578    exec->ProgramParameters4dvNV = _mesa_ProgramParameters4dvNV;
 579    exec->ProgramParameters4fvNV = _mesa_ProgramParameters4fvNV;
 580    exec->TrackMatrixNV = _mesa_TrackMatrixNV;
 581    exec->VertexAttribPointerNV = _mesa_VertexAttribPointerNV;
 582    /* glVertexAttrib*NV functions handled in api_loopback.c */
 583 #endif
 584
 585    /* 282. GL_NV_fragment_program */
 586 #if FEATURE_NV_fragment_program
 587    exec->ProgramNamedParameter4fNV = _mesa_ProgramNamedParameter4fNV;
 588    exec->ProgramNamedParameter4dNV = _mesa_ProgramNamedParameter4dNV;
 589    exec->ProgramNamedParameter4fvNV = _mesa_ProgramNamedParameter4fvNV;
 590    exec->ProgramNamedParameter4dvNV = _mesa_ProgramNamedParameter4dvNV;
 591    exec->GetProgramNamedParameterfvNV = _mesa_GetProgramNamedParameterfvNV;
 592    exec->GetProgramNamedParameterdvNV = _mesa_GetProgramNamedParameterdvNV;
 593    exec->ProgramLocalParameter4dARB = _mesa_ProgramLocalParameter4dARB;
 594    exec->ProgramLocalParameter4dvARB = _mesa_ProgramLocalParameter4dvARB;
 595    exec->ProgramLocalParameter4fARB = _mesa_ProgramLocalParameter4fARB;
 596    exec->ProgramLocalParameter4fvARB = _mesa_ProgramLocalParameter4fvARB;
 597    exec->GetProgramLocalParameterdvARB = _mesa_GetProgramLocalParameterdvARB;
 598    exec->GetProgramLocalParameterfvARB = _mesa_GetProgramLocalParameterfvARB;
 599 #endif
 600
 601    /* 262. GL_NV_point_sprite */
 602 #if _HAVE_FULL_GL
 603    exec->PointParameteriNV = _mesa_PointParameteriNV;
 604    exec->PointParameterivNV = _mesa_PointParameterivNV;
 605 #endif
 606
 607    /* 268. GL_EXT_stencil_two_side */
 608 #if _HAVE_FULL_GL
 609    exec->ActiveStencilFaceEXT = _mesa_ActiveStencilFaceEXT;
 610 #endif
 611
 612    /* ???. GL_EXT_depth_bounds_test */
 613    exec->DepthBoundsEXT = _mesa_DepthBoundsEXT;
 614
 615    /* ARB 1. GL_ARB_multitexture */
 616 #if _HAVE_FULL_GL
 617    exec->ActiveTextureARB = _mesa_ActiveTextureARB;
 618    exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;
 619 #endif
 620
 621    /* ARB 3. GL_ARB_transpose_matrix */
 622 #if _HAVE_FULL_GL
 623    exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;
 624    exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;
 625    exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;
 626    exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;
 627 #endif
 628
 629    /* ARB 5. GL_ARB_multisample */
 630 #if _HAVE_FULL_GL
 631    exec->SampleCoverageARB = _mesa_SampleCoverageARB;
 632 #endif
 633
 634    /* ARB 12. GL_ARB_texture_compression */
 635 #if _HAVE_FULL_GL
 636    exec->CompressedTexImage3DARB = _mesa_CompressedTexImage3DARB;
 637    exec->CompressedTexImage2DARB = _mesa_CompressedTexImage2DARB;
 638    exec->CompressedTexImage1DARB = _mesa_CompressedTexImage1DARB;
 639    exec->CompressedTexSubImage3DARB = _mesa_CompressedTexSubImage3DARB;
 640    exec->CompressedTexSubImage2DARB = _mesa_CompressedTexSubImage2DARB;
 641    exec->CompressedTexSubImage1DARB = _mesa_CompressedTexSubImage1DARB;
 642    exec->GetCompressedTexImageARB = _mesa_GetCompressedTexImageARB;
 643 #endif
 644
 645    /* ARB 14. GL_ARB_point_parameters */
 646    /* reuse EXT_point_parameters functions */
 647
 648    /* ARB 26. GL_ARB_vertex_program */
 649    /* ARB 27. GL_ARB_fragment_program */
 650 #if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
 651    /* glVertexAttrib1sARB aliases glVertexAttrib1sNV */
 652    /* glVertexAttrib1fARB aliases glVertexAttrib1fNV */
 653    /* glVertexAttrib1dARB aliases glVertexAttrib1dNV */
 654    /* glVertexAttrib2sARB aliases glVertexAttrib2sNV */
 655    /* glVertexAttrib2fARB aliases glVertexAttrib2fNV */
 656    /* glVertexAttrib2dARB aliases glVertexAttrib2dNV */
 657    /* glVertexAttrib3sARB aliases glVertexAttrib3sNV */
 658    /* glVertexAttrib3fARB aliases glVertexAttrib3fNV */
 659    /* glVertexAttrib3dARB aliases glVertexAttrib3dNV */
 660    /* glVertexAttrib4sARB aliases glVertexAttrib4sNV */
 661    /* glVertexAttrib4fARB aliases glVertexAttrib4fNV */
 662    /* glVertexAttrib4dARB aliases glVertexAttrib4dNV */
 663    /* glVertexAttrib4NubARB aliases glVertexAttrib4NubNV */
 664    /* glVertexAttrib1svARB aliases glVertexAttrib1svNV */
 665    /* glVertexAttrib1fvARB aliases glVertexAttrib1fvNV */
 666    /* glVertexAttrib1dvARB aliases glVertexAttrib1dvNV */
 667    /* glVertexAttrib2svARB aliases glVertexAttrib2svNV */
 668    /* glVertexAttrib2fvARB aliases glVertexAttrib2fvNV */
 669    /* glVertexAttrib2dvARB aliases glVertexAttrib2dvNV */
 670    /* glVertexAttrib3svARB aliases glVertexAttrib3svNV */
 671    /* glVertexAttrib3fvARB aliases glVertexAttrib3fvNV */
 672    /* glVertexAttrib3dvARB aliases glVertexAttrib3dvNV */
 673    /* glVertexAttrib4svARB aliases glVertexAttrib4svNV */
 674    /* glVertexAttrib4fvARB aliases glVertexAttrib4fvNV */
 675    /* glVertexAttrib4dvARB aliases glVertexAttrib4dvNV */
 676    /* glVertexAttrib4NubvARB aliases glVertexAttrib4NubvNV */
 677    /* glVertexAttrib4bvARB handled in api_loopback.c */
 678    /* glVertexAttrib4ivARB handled in api_loopback.c */
 679    /* glVertexAttrib4ubvARB handled in api_loopback.c */
 680    /* glVertexAttrib4usvARB handled in api_loopback.c */
 681    /* glVertexAttrib4uivARB handled in api_loopback.c */
 682    /* glVertexAttrib4NbvARB handled in api_loopback.c */
 683    /* glVertexAttrib4NsvARB handled in api_loopback.c */
 684    /* glVertexAttrib4NivARB handled in api_loopback.c */
 685    /* glVertexAttrib4NusvARB handled in api_loopback.c */
 686    /* glVertexAttrib4NuivARB handled in api_loopback.c */
 687    exec->VertexAttribPointerARB = _mesa_VertexAttribPointerARB;
 688    exec->EnableVertexAttribArrayARB = _mesa_EnableVertexAttribArrayARB;
 689    exec->DisableVertexAttribArrayARB = _mesa_DisableVertexAttribArrayARB;
 690    exec->ProgramStringARB = _mesa_ProgramStringARB;
 691    /* glBindProgramARB aliases glBindProgramNV */
 692    /* glDeleteProgramsARB aliases glDeleteProgramsNV */
 693    /* glGenProgramsARB aliases glGenProgramsNV */
 694    /* glIsProgramARB aliases glIsProgramNV */
 695    /* glGetVertexAttribdvARB aliases glGetVertexAttribdvNV */
 696    /* glGetVertexAttribfvARB aliases glGetVertexAttribfvNV */
 697    /* glGetVertexAttribivARB aliases glGetVertexAttribivNV */
 698    /* glGetVertexAttribPointervARB aliases glGetVertexAttribPointervNV */
 699    exec->ProgramEnvParameter4dARB = _mesa_ProgramEnvParameter4dARB;
 700    exec->ProgramEnvParameter4dvARB = _mesa_ProgramEnvParameter4dvARB;
 701    exec->ProgramEnvParameter4fARB = _mesa_ProgramEnvParameter4fARB;
 702    exec->ProgramEnvParameter4fvARB = _mesa_ProgramEnvParameter4fvARB;
 703    exec->ProgramLocalParameter4dARB = _mesa_ProgramLocalParameter4dARB;
 704    exec->ProgramLocalParameter4dvARB = _mesa_ProgramLocalParameter4dvARB;
 705    exec->ProgramLocalParameter4fARB = _mesa_ProgramLocalParameter4fARB;
 706    exec->ProgramLocalParameter4fvARB = _mesa_ProgramLocalParameter4fvARB;
 707    exec->GetProgramEnvParameterdvARB = _mesa_GetProgramEnvParameterdvARB;
 708    exec->GetProgramEnvParameterfvARB = _mesa_GetProgramEnvParameterfvARB;
 709    exec->GetProgramLocalParameterdvARB = _mesa_GetProgramLocalParameterdvARB;
 710    exec->GetProgramLocalParameterfvARB = _mesa_GetProgramLocalParameterfvARB;
 711    exec->GetProgramivARB = _mesa_GetProgramivARB;
 712    exec->GetProgramStringARB = _mesa_GetProgramStringARB;
 713 #endif
 714
 715    /* ARB 28. GL_ARB_vertex_buffer_object */
 716 #if FEATURE_ARB_vertex_buffer_object
 717    exec->BindBufferARB = _mesa_BindBufferARB;
 718    exec->BufferDataARB = _mesa_BufferDataARB;
 719    exec->BufferSubDataARB = _mesa_BufferSubDataARB;
 720    exec->DeleteBuffersARB = _mesa_DeleteBuffersARB;
 721    exec->GenBuffersARB = _mesa_GenBuffersARB;
 722    exec->GetBufferParameterivARB = _mesa_GetBufferParameterivARB;
 723    exec->GetBufferPointervARB = _mesa_GetBufferPointervARB;
 724    exec->GetBufferSubDataARB = _mesa_GetBufferSubDataARB;
 725    exec->IsBufferARB = _mesa_IsBufferARB;
 726    exec->MapBufferARB = _mesa_MapBufferARB;
 727    exec->UnmapBufferARB = _mesa_UnmapBufferARB;
 728 #endif
 729
 730    /* ARB 29. GL_ARB_occlusion_query */
 731 #if FEATURE_ARB_occlusion_query
 732    exec->GenQueriesARB = _mesa_GenQueriesARB;
 733    exec->DeleteQueriesARB = _mesa_DeleteQueriesARB;
 734    exec->IsQueryARB = _mesa_IsQueryARB;
 735    exec->BeginQueryARB = _mesa_BeginQueryARB;
 736    exec->EndQueryARB = _mesa_EndQueryARB;
 737    exec->GetQueryivARB = _mesa_GetQueryivARB;
 738    exec->GetQueryObjectivARB = _mesa_GetQueryObjectivARB;
 739    exec->GetQueryObjectuivARB = _mesa_GetQueryObjectuivARB;
 740 #endif
 741
 742    /* ARB 37. GL_ARB_draw_buffers */
 743    exec->DrawBuffersARB = _mesa_DrawBuffersARB;
 744
 745 #if FEATURE_ARB_shader_objects
 746    exec->DeleteObjectARB = _mesa_DeleteObjectARB;
 747    exec->GetHandleARB = _mesa_GetHandleARB;
 748    exec->DetachObjectARB = _mesa_DetachObjectARB;
 749    exec->CreateShaderObjectARB = _mesa_CreateShaderObjectARB;
 750    exec->ShaderSourceARB = _mesa_ShaderSourceARB;
 751    exec->CompileShaderARB = _mesa_CompileShaderARB;
 752    exec->CreateProgramObjectARB = _mesa_CreateProgramObjectARB;
 753    exec->AttachObjectARB = _mesa_AttachObjectARB;
 754    exec->LinkProgramARB = _mesa_LinkProgramARB;
 755    exec->UseProgramObjectARB = _mesa_UseProgramObjectARB;
 756    exec->ValidateProgramARB = _mesa_ValidateProgramARB;
 757    exec->Uniform1fARB = _mesa_Uniform1fARB;
 758    exec->Uniform2fARB = _mesa_Uniform2fARB;
 759    exec->Uniform3fARB = _mesa_Uniform3fARB;
 760    exec->Uniform4fARB = _mesa_Uniform4fARB;
 761    exec->Uniform1iARB = _mesa_Uniform1iARB;
 762    exec->Uniform2iARB = _mesa_Uniform2iARB;
 763    exec->Uniform3iARB = _mesa_Uniform3iARB;
 764    exec->Uniform4iARB = _mesa_Uniform4iARB;
 765    exec->Uniform1fvARB = _mesa_Uniform1fvARB;
 766    exec->Uniform2fvARB = _mesa_Uniform2fvARB;
 767    exec->Uniform3fvARB = _mesa_Uniform3fvARB;
 768    exec->Uniform4fvARB = _mesa_Uniform4fvARB;
 769    exec->Uniform1ivARB = _mesa_Uniform1ivARB;
 770    exec->Uniform2ivARB = _mesa_Uniform2ivARB;
 771    exec->Uniform3ivARB = _mesa_Uniform3ivARB;
 772    exec->Uniform4ivARB = _mesa_Uniform4ivARB;
 773    exec->UniformMatrix2fvARB = _mesa_UniformMatrix2fvARB;
 774    exec->UniformMatrix3fvARB = _mesa_UniformMatrix3fvARB;
 775    exec->UniformMatrix4fvARB = _mesa_UniformMatrix4fvARB;
 776    exec->GetObjectParameterfvARB = _mesa_GetObjectParameterfvARB;
 777    exec->GetObjectParameterivARB = _mesa_GetObjectParameterivARB;
 778    exec->GetInfoLogARB = _mesa_GetInfoLogARB;
 779    exec->GetAttachedObjectsARB = _mesa_GetAttachedObjectsARB;
 780    exec->GetUniformLocationARB = _mesa_GetUniformLocationARB;
 781    exec->GetActiveUniformARB = _mesa_GetActiveUniformARB;
 782    exec->GetUniformfvARB = _mesa_GetUniformfvARB;
 783    exec->GetUniformivARB = _mesa_GetUniformivARB;
 784    exec->GetShaderSourceARB = _mesa_GetShaderSourceARB;
 785 #if FEATURE_ARB_vertex_shader
 786    exec->BindAttribLocationARB = _mesa_BindAttribLocationARB;
 787    exec->GetActiveAttribARB = _mesa_GetActiveAttribARB;
 788    exec->GetAttribLocationARB = _mesa_GetAttribLocationARB;
 789 #endif
 790 #endif    /* FEATURE_ARB_shader_objects */
 791 }
 792
 793 /*@}*/
 794
 795
 796 /**********************************************************************/
 797 /** \name State update logic */
 798 /*@{*/
 799
 800
 801 static void
 802 update_separate_specular( GLcontext *ctx )
 803 {
 804    if (NEED_SECONDARY_COLOR(ctx))
 805       ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
 806    else
 807       ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
 808 }
 809
 810
 811 /**
 812  * Update state dependent on vertex arrays.
 813  */
 814 static void
 815 update_arrays( GLcontext *ctx )
 816 {
 817    GLuint i, min;
 818
 819    /* find min of _MaxElement values for all enabled arrays */
 820
 821    /* 0 */
 822    if (ctx->VertexProgram._Enabled
 823        && ctx->Array.VertexAttrib[VERT_ATTRIB_POS].Enabled) {
 824       min = ctx->Array.VertexAttrib[VERT_ATTRIB_POS]._MaxElement;
 825    }
 826    else if (ctx->Array.Vertex.Enabled) {
 827       min = ctx->Array.Vertex._MaxElement;
 828    }
 829    else {
 830       /* can't draw anything without vertex positions! */
 831       min = 0;
 832    }
 833
 834    /* 1 */
 835    if (ctx->VertexProgram._Enabled
 836        && ctx->Array.VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
 837       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_WEIGHT]._MaxElement);
 838    }
 839    /* no conventional vertex weight array */
 840
 841    /* 2 */
 842    if (ctx->VertexProgram._Enabled
 843        && ctx->Array.VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
 844       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_NORMAL]._MaxElement);
 845    }
 846    else if (ctx->Array.Normal.Enabled) {
 847       min = MIN2(min, ctx->Array.Normal._MaxElement);
 848    }
 849
 850    /* 3 */
 851    if (ctx->VertexProgram._Enabled
 852        && ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
 853       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR0]._MaxElement);
 854    }
 855    else if (ctx->Array.Color.Enabled) {
 856       min = MIN2(min, ctx->Array.Color._MaxElement);
 857    }
 858
 859    /* 4 */
 860    if (ctx->VertexProgram._Enabled
 861        && ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
 862       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_COLOR1]._MaxElement);
 863    }
 864    else if (ctx->Array.SecondaryColor.Enabled) {
 865       min = MIN2(min, ctx->Array.SecondaryColor._MaxElement);
 866    }
 867
 868    /* 5 */
 869    if (ctx->VertexProgram._Enabled
 870        && ctx->Array.VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
 871       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_FOG]._MaxElement);
 872    }
 873    else if (ctx->Array.FogCoord.Enabled) {
 874       min = MIN2(min, ctx->Array.FogCoord._MaxElement);
 875    }
 876
 877    /* 6 */
 878    if (ctx->VertexProgram._Enabled
 879        && ctx->Array.VertexAttrib[VERT_ATTRIB_SIX].Enabled) {
 880       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_SIX]._MaxElement);
 881    }
 882
 883    /* 7 */
 884    if (ctx->VertexProgram._Enabled
 885        && ctx->Array.VertexAttrib[VERT_ATTRIB_SEVEN].Enabled) {
 886       min = MIN2(min, ctx->Array.VertexAttrib[VERT_ATTRIB_SEVEN]._MaxElement);
 887    }
 888
 889    /* 8..15 */
 890    for (i = VERT_ATTRIB_TEX0; i < VERT_ATTRIB_MAX; i++) {
 891       if (ctx->VertexProgram._Enabled
 892           && ctx->Array.VertexAttrib[i].Enabled) {
 893          min = MIN2(min, ctx->Array.VertexAttrib[i]._MaxElement);
 894       }
 895       else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits
 896                && ctx->Array.TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
 897          min = MIN2(min, ctx->Array.TexCoord[i - VERT_ATTRIB_TEX0]._MaxElement);
 898       }
 899    }
 900
 901    if (ctx->Array.Index.Enabled) {
 902       min = MIN2(min, ctx->Array.Index._MaxElement);
 903    }
 904
 905    if (ctx->Array.EdgeFlag.Enabled) {
 906       min = MIN2(min, ctx->Array.EdgeFlag._MaxElement);
 907    }
 908
 909    /* _MaxElement is one past the last legal array element */
 910    ctx->Array._MaxElement = min;
 911 }
 912
 913
 914 /**
 915  * Update derived vertex/fragment program state.
 916  */
 917 static void
 918 update_program(GLcontext *ctx)
 919 {
 920    /* For now, just set the _Enabled (really enabled) flags.
 921     * In the future we may have to check other state to be sure we really
 922     * have a runable program or shader.
 923     */
 924    ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled
 925       && ctx->VertexProgram.Current->Instructions;
 926    ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled
 927       && ctx->FragmentProgram.Current->Instructions;
 928 }
 929
 930
 931 /*
 932  * If __GLcontextRec::NewState is non-zero then this function \b must be called
 933  * before rendering any primitive.  Basically, function pointers and
 934  * miscellaneous flags are updated to reflect the current state of the state
 935  * machine.
 936  *
 937  * Calls dd_function_table::UpdateState to perform any internal state management
 938  * necessary.
 939  *
 940  * \sa _mesa_update_modelview_project(), _mesa_update_texture(),
 941  * _mesa_update_buffers(), _mesa_update_polygon(), _mesa_update_lighting() and
 942  * _mesa_update_tnl_spaces().
 943  */
 944 void _mesa_update_state( GLcontext *ctx )
 945 {
 946    GLuint new_state = ctx->NewState;
 947
 948    if (MESA_VERBOSE & VERBOSE_STATE)
 949       _mesa_print_state("_mesa_update_state", new_state);
 950
 951    if (new_state & _NEW_PROGRAM)
 952       update_program( ctx );
 953
 954    if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
 955       _mesa_update_modelview_project( ctx, new_state );
 956
 957    if (new_state & (_NEW_PROGRAM|_NEW_TEXTURE|_NEW_TEXTURE_MATRIX))
 958       _mesa_update_texture( ctx, new_state );
 959
 960    if (new_state & (_NEW_SCISSOR|_NEW_BUFFERS))
 961       _mesa_update_buffers( ctx );
 962
 963    if (new_state & _NEW_POLYGON)
 964       _mesa_update_polygon( ctx );
 965
 966    if (new_state & _NEW_LIGHT)
 967       _mesa_update_lighting( ctx );
 968
 969    if (new_state & _IMAGE_NEW_TRANSFER_STATE)
 970       _mesa_update_pixel( ctx, new_state );
 971
 972    if (new_state & _DD_NEW_SEPARATE_SPECULAR)
 973       update_separate_specular( ctx );
 974
 975    if (new_state & (_NEW_ARRAY | _NEW_PROGRAM))
 976       update_arrays( ctx );
 977
 978    /* ctx->_NeedEyeCoords is now up to date.
 979     *
 980     * If the truth value of this variable has changed, update for the
 981     * new lighting space and recompute the positions of lights and the
 982     * normal transform.
 983     *
 984     * If the lighting space hasn't changed, may still need to recompute
 985     * light positions & normal transforms for other reasons.
 986     */
 987    if (new_state & _MESA_NEW_NEED_EYE_COORDS)
 988       _mesa_update_tnl_spaces( ctx, new_state );
 989
 990    /*
 991     * Give the driver a chance to act upon the new_state flags.
 992     * The driver might plug in different span functions, for example.
 993     * Also, this is where the driver can invalidate the state of any
 994     * active modules (such as swrast_setup, swrast, tnl, etc).
 995     *
 996     * Set ctx->NewState to zero to avoid recursion if
 997     * Driver.UpdateState() has to call FLUSH_VERTICES().  (fixed?)
 998     */
 999    new_state = ctx->NewState;
1000    ctx->NewState = 0;
1001    ctx->Driver.UpdateState(ctx, new_state);
1002    ctx->Array.NewState = 0;
1003 }
1004
1005 /*@}*/