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55 pj 1
/* $Id: state.c,v 1.1 2003-02-28 11:42:04 pj Exp $ */
2
 
3
/*
4
 * Mesa 3-D graphics library
5
 * Version:  5.0
6
 *
7
 * Copyright (C) 1999-2002  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
#include "glheader.h"
35
#include "accum.h"
36
#include "api_loopback.h"
37
#include "attrib.h"
38
#include "blend.h"
39
#include "buffers.h"
40
#include "clip.h"
41
#include "colortab.h"
42
#include "context.h"
43
#include "convolve.h"
44
#include "depth.h"
45
#include "dlist.h"
46
#include "drawpix.h"
47
#include "enable.h"
48
#include "eval.h"
49
#include "get.h"
50
#include "feedback.h"
51
#include "fog.h"
52
#include "hint.h"
53
#include "histogram.h"
54
#include "light.h"
55
#include "lines.h"
56
#include "matrix.h"
57
#include "mmath.h"
58
#include "pixel.h"
59
#include "points.h"
60
#include "polygon.h"
61
#include "rastpos.h"
62
#include "state.h"
63
#include "stencil.h"
64
#include "teximage.h"
65
#include "texobj.h"
66
#include "texstate.h"
67
#include "mtypes.h"
68
#include "varray.h"
69
#if FEATURE_NV_vertex_program
70
#include "vpstate.h"
71
#endif
72
 
73
#include "math/m_matrix.h"
74
#include "math/m_xform.h"
75
 
76
 
77
static int
78
generic_noop(void)
79
{
80
#ifdef DEBUG
81
   _mesa_problem(NULL, "User called no-op dispatch function");
82
#endif
83
   return 0;
84
}
85
 
86
 
87
/*
88
 * Set all pointers in the given dispatch table to point to a
89
 * generic no-op function.
90
 */
91
void
92
_mesa_init_no_op_table(struct _glapi_table *table, GLuint tableSize)
93
{
94
   GLuint i;
95
   void **dispatch = (void **) table;
96
   for (i = 0; i < tableSize; i++) {
97
      dispatch[i] = (void *) generic_noop;
98
   }
99
}
100
 
101
 
102
 
103
/*
104
 * Initialize the given dispatch table with pointers to Mesa's
105
 * immediate-mode commands.
106
 *
107
 * Pointers to begin/end object commands and a few others
108
 * are provided via the vtxfmt interface elsewhere.
109
 */
110
void
111
_mesa_init_exec_table(struct _glapi_table *exec, GLuint tableSize)
112
{
113
   /* first initialize all dispatch slots to no-op */
114
   _mesa_init_no_op_table(exec, tableSize);
115
 
116
   _mesa_loopback_init_api_table( exec, GL_TRUE );
117
 
118
   /* load the dispatch slots we understand */
119
   exec->Accum = _mesa_Accum;
120
   exec->AlphaFunc = _mesa_AlphaFunc;
121
   exec->Bitmap = _mesa_Bitmap;
122
   exec->BlendFunc = _mesa_BlendFunc;
123
   exec->CallList = _mesa_CallList;
124
   exec->CallLists = _mesa_CallLists;
125
   exec->Clear = _mesa_Clear;
126
   exec->ClearAccum = _mesa_ClearAccum;
127
   exec->ClearColor = _mesa_ClearColor;
128
   exec->ClearDepth = _mesa_ClearDepth;
129
   exec->ClearIndex = _mesa_ClearIndex;
130
   exec->ClearStencil = _mesa_ClearStencil;
131
   exec->ClipPlane = _mesa_ClipPlane;
132
   exec->ColorMask = _mesa_ColorMask;
133
   exec->ColorMaterial = _mesa_ColorMaterial;
134
   exec->CopyPixels = _mesa_CopyPixels;
135
   exec->CullFace = _mesa_CullFace;
136
   exec->DeleteLists = _mesa_DeleteLists;
137
   exec->DepthFunc = _mesa_DepthFunc;
138
   exec->DepthMask = _mesa_DepthMask;
139
   exec->DepthRange = _mesa_DepthRange;
140
   exec->Disable = _mesa_Disable;
141
   exec->DrawBuffer = _mesa_DrawBuffer;
142
   exec->DrawPixels = _mesa_DrawPixels;
143
   exec->Enable = _mesa_Enable;
144
   exec->EndList = _mesa_EndList;
145
   exec->FeedbackBuffer = _mesa_FeedbackBuffer;
146
   exec->Finish = _mesa_Finish;
147
   exec->Flush = _mesa_Flush;
148
   exec->FogCoordPointerEXT = _mesa_FogCoordPointerEXT;
149
   exec->Fogf = _mesa_Fogf;
150
   exec->Fogfv = _mesa_Fogfv;
151
   exec->Fogi = _mesa_Fogi;
152
   exec->Fogiv = _mesa_Fogiv;
153
   exec->FrontFace = _mesa_FrontFace;
154
   exec->Frustum = _mesa_Frustum;
155
   exec->GenLists = _mesa_GenLists;
156
   exec->GetBooleanv = _mesa_GetBooleanv;
157
   exec->GetClipPlane = _mesa_GetClipPlane;
158
   exec->GetDoublev = _mesa_GetDoublev;
159
   exec->GetError = _mesa_GetError;
160
   exec->GetFloatv = _mesa_GetFloatv;
161
   exec->GetIntegerv = _mesa_GetIntegerv;
162
   exec->GetLightfv = _mesa_GetLightfv;
163
   exec->GetLightiv = _mesa_GetLightiv;
164
   exec->GetMapdv = _mesa_GetMapdv;
165
   exec->GetMapfv = _mesa_GetMapfv;
166
   exec->GetMapiv = _mesa_GetMapiv;
167
   exec->GetMaterialfv = _mesa_GetMaterialfv;
168
   exec->GetMaterialiv = _mesa_GetMaterialiv;
169
   exec->GetPixelMapfv = _mesa_GetPixelMapfv;
170
   exec->GetPixelMapuiv = _mesa_GetPixelMapuiv;
171
   exec->GetPixelMapusv = _mesa_GetPixelMapusv;
172
   exec->GetPolygonStipple = _mesa_GetPolygonStipple;
173
   exec->GetString = _mesa_GetString;
174
   exec->GetTexEnvfv = _mesa_GetTexEnvfv;
175
   exec->GetTexEnviv = _mesa_GetTexEnviv;
176
   exec->GetTexGendv = _mesa_GetTexGendv;
177
   exec->GetTexGenfv = _mesa_GetTexGenfv;
178
   exec->GetTexGeniv = _mesa_GetTexGeniv;
179
   exec->GetTexImage = _mesa_GetTexImage;
180
   exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv;
181
   exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv;
182
   exec->GetTexParameterfv = _mesa_GetTexParameterfv;
183
   exec->GetTexParameteriv = _mesa_GetTexParameteriv;
184
   exec->Hint = _mesa_Hint;
185
   exec->IndexMask = _mesa_IndexMask;
186
   exec->InitNames = _mesa_InitNames;
187
   exec->IsEnabled = _mesa_IsEnabled;
188
   exec->IsList = _mesa_IsList;
189
   exec->LightModelf = _mesa_LightModelf;
190
   exec->LightModelfv = _mesa_LightModelfv;
191
   exec->LightModeli = _mesa_LightModeli;
192
   exec->LightModeliv = _mesa_LightModeliv;
193
   exec->Lightf = _mesa_Lightf;
194
   exec->Lightfv = _mesa_Lightfv;
195
   exec->Lighti = _mesa_Lighti;
196
   exec->Lightiv = _mesa_Lightiv;
197
   exec->LineStipple = _mesa_LineStipple;
198
   exec->LineWidth = _mesa_LineWidth;
199
   exec->ListBase = _mesa_ListBase;
200
   exec->LoadIdentity = _mesa_LoadIdentity;
201
   exec->LoadMatrixd = _mesa_LoadMatrixd;
202
   exec->LoadMatrixf = _mesa_LoadMatrixf;
203
   exec->LoadName = _mesa_LoadName;
204
   exec->LogicOp = _mesa_LogicOp;
205
   exec->Map1d = _mesa_Map1d;
206
   exec->Map1f = _mesa_Map1f;
207
   exec->Map2d = _mesa_Map2d;
208
   exec->Map2f = _mesa_Map2f;
209
   exec->MapGrid1d = _mesa_MapGrid1d;
210
   exec->MapGrid1f = _mesa_MapGrid1f;
211
   exec->MapGrid2d = _mesa_MapGrid2d;
212
   exec->MapGrid2f = _mesa_MapGrid2f;
213
   exec->MatrixMode = _mesa_MatrixMode;
214
   exec->MultMatrixd = _mesa_MultMatrixd;
215
   exec->MultMatrixf = _mesa_MultMatrixf;
216
   exec->NewList = _mesa_NewList;
217
   exec->Ortho = _mesa_Ortho;
218
   exec->PassThrough = _mesa_PassThrough;
219
   exec->PixelMapfv = _mesa_PixelMapfv;
220
   exec->PixelMapuiv = _mesa_PixelMapuiv;
221
   exec->PixelMapusv = _mesa_PixelMapusv;
222
   exec->PixelStoref = _mesa_PixelStoref;
223
   exec->PixelStorei = _mesa_PixelStorei;
224
   exec->PixelTransferf = _mesa_PixelTransferf;
225
   exec->PixelTransferi = _mesa_PixelTransferi;
226
   exec->PixelZoom = _mesa_PixelZoom;
227
   exec->PointSize = _mesa_PointSize;
228
   exec->PolygonMode = _mesa_PolygonMode;
229
   exec->PolygonOffset = _mesa_PolygonOffset;
230
   exec->PolygonStipple = _mesa_PolygonStipple;
231
   exec->PopAttrib = _mesa_PopAttrib;
232
   exec->PopMatrix = _mesa_PopMatrix;
233
   exec->PopName = _mesa_PopName;
234
   exec->PushAttrib = _mesa_PushAttrib;
235
   exec->PushMatrix = _mesa_PushMatrix;
236
   exec->PushName = _mesa_PushName;
237
   exec->RasterPos2d = _mesa_RasterPos2d;
238
   exec->RasterPos2dv = _mesa_RasterPos2dv;
239
   exec->RasterPos2f = _mesa_RasterPos2f;
240
   exec->RasterPos2fv = _mesa_RasterPos2fv;
241
   exec->RasterPos2i = _mesa_RasterPos2i;
242
   exec->RasterPos2iv = _mesa_RasterPos2iv;
243
   exec->RasterPos2s = _mesa_RasterPos2s;
244
   exec->RasterPos2sv = _mesa_RasterPos2sv;
245
   exec->RasterPos3d = _mesa_RasterPos3d;
246
   exec->RasterPos3dv = _mesa_RasterPos3dv;
247
   exec->RasterPos3f = _mesa_RasterPos3f;
248
   exec->RasterPos3fv = _mesa_RasterPos3fv;
249
   exec->RasterPos3i = _mesa_RasterPos3i;
250
   exec->RasterPos3iv = _mesa_RasterPos3iv;
251
   exec->RasterPos3s = _mesa_RasterPos3s;
252
   exec->RasterPos3sv = _mesa_RasterPos3sv;
253
   exec->RasterPos4d = _mesa_RasterPos4d;
254
   exec->RasterPos4dv = _mesa_RasterPos4dv;
255
   exec->RasterPos4f = _mesa_RasterPos4f;
256
   exec->RasterPos4fv = _mesa_RasterPos4fv;
257
   exec->RasterPos4i = _mesa_RasterPos4i;
258
   exec->RasterPos4iv = _mesa_RasterPos4iv;
259
   exec->RasterPos4s = _mesa_RasterPos4s;
260
   exec->RasterPos4sv = _mesa_RasterPos4sv;
261
   exec->ReadBuffer = _mesa_ReadBuffer;
262
   exec->ReadPixels = _mesa_ReadPixels;
263
   exec->RenderMode = _mesa_RenderMode;
264
   exec->Rotated = _mesa_Rotated;
265
   exec->Rotatef = _mesa_Rotatef;
266
   exec->Scaled = _mesa_Scaled;
267
   exec->Scalef = _mesa_Scalef;
268
   exec->Scissor = _mesa_Scissor;
269
   exec->SecondaryColorPointerEXT = _mesa_SecondaryColorPointerEXT;
270
   exec->SelectBuffer = _mesa_SelectBuffer;
271
   exec->ShadeModel = _mesa_ShadeModel;
272
   exec->StencilFunc = _mesa_StencilFunc;
273
   exec->StencilMask = _mesa_StencilMask;
274
   exec->StencilOp = _mesa_StencilOp;
275
   exec->TexEnvf = _mesa_TexEnvf;
276
   exec->TexEnvfv = _mesa_TexEnvfv;
277
   exec->TexEnvi = _mesa_TexEnvi;
278
   exec->TexEnviv = _mesa_TexEnviv;
279
   exec->TexGend = _mesa_TexGend;
280
   exec->TexGendv = _mesa_TexGendv;
281
   exec->TexGenf = _mesa_TexGenf;
282
   exec->TexGenfv = _mesa_TexGenfv;
283
   exec->TexGeni = _mesa_TexGeni;
284
   exec->TexGeniv = _mesa_TexGeniv;
285
   exec->TexImage1D = _mesa_TexImage1D;
286
   exec->TexImage2D = _mesa_TexImage2D;
287
   exec->TexParameterf = _mesa_TexParameterf;
288
   exec->TexParameterfv = _mesa_TexParameterfv;
289
   exec->TexParameteri = _mesa_TexParameteri;
290
   exec->TexParameteriv = _mesa_TexParameteriv;
291
   exec->Translated = _mesa_Translated;
292
   exec->Translatef = _mesa_Translatef;
293
   exec->Viewport = _mesa_Viewport;
294
 
295
   /* 1.1 */
296
   exec->AreTexturesResident = _mesa_AreTexturesResident;
297
   exec->AreTexturesResidentEXT = _mesa_AreTexturesResident;
298
   exec->BindTexture = _mesa_BindTexture;
299
   exec->ColorPointer = _mesa_ColorPointer;
300
   exec->CopyTexImage1D = _mesa_CopyTexImage1D;
301
   exec->CopyTexImage2D = _mesa_CopyTexImage2D;
302
   exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;
303
   exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;
304
   exec->DeleteTextures = _mesa_DeleteTextures;
305
   exec->DisableClientState = _mesa_DisableClientState;
306
   exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;
307
   exec->EnableClientState = _mesa_EnableClientState;
308
   exec->GenTextures = _mesa_GenTextures;
309
   exec->GenTexturesEXT = _mesa_GenTextures;
310
   exec->GetPointerv = _mesa_GetPointerv;
311
   exec->IndexPointer = _mesa_IndexPointer;
312
   exec->InterleavedArrays = _mesa_InterleavedArrays;
313
   exec->IsTexture = _mesa_IsTexture;
314
   exec->IsTextureEXT = _mesa_IsTexture;
315
   exec->NormalPointer = _mesa_NormalPointer;
316
   exec->PopClientAttrib = _mesa_PopClientAttrib;
317
   exec->PrioritizeTextures = _mesa_PrioritizeTextures;
318
   exec->PushClientAttrib = _mesa_PushClientAttrib;
319
   exec->TexCoordPointer = _mesa_TexCoordPointer;
320
   exec->TexSubImage1D = _mesa_TexSubImage1D;
321
   exec->TexSubImage2D = _mesa_TexSubImage2D;
322
   exec->VertexPointer = _mesa_VertexPointer;
323
 
324
   /* 1.2 */
325
   exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D;
326
   exec->TexImage3D = _mesa_TexImage3D;
327
   exec->TexSubImage3D = _mesa_TexSubImage3D;
328
 
329
   /* OpenGL 1.2  GL_ARB_imaging */
330
   exec->BlendColor = _mesa_BlendColor;
331
   exec->BlendEquation = _mesa_BlendEquation;
332
   exec->ColorSubTable = _mesa_ColorSubTable;
333
   exec->ColorTable = _mesa_ColorTable;
334
   exec->ColorTableParameterfv = _mesa_ColorTableParameterfv;
335
   exec->ColorTableParameteriv = _mesa_ColorTableParameteriv;
336
   exec->ConvolutionFilter1D = _mesa_ConvolutionFilter1D;
337
   exec->ConvolutionFilter2D = _mesa_ConvolutionFilter2D;
338
   exec->ConvolutionParameterf = _mesa_ConvolutionParameterf;
339
   exec->ConvolutionParameterfv = _mesa_ConvolutionParameterfv;
340
   exec->ConvolutionParameteri = _mesa_ConvolutionParameteri;
341
   exec->ConvolutionParameteriv = _mesa_ConvolutionParameteriv;
342
   exec->CopyColorSubTable = _mesa_CopyColorSubTable;
343
   exec->CopyColorTable = _mesa_CopyColorTable;
344
   exec->CopyConvolutionFilter1D = _mesa_CopyConvolutionFilter1D;
345
   exec->CopyConvolutionFilter2D = _mesa_CopyConvolutionFilter2D;
346
   exec->GetColorTable = _mesa_GetColorTable;
347
   exec->GetColorTableEXT = _mesa_GetColorTable;
348
   exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;
349
   exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
350
   exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;
351
   exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
352
   exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;
353
   exec->GetConvolutionFilterEXT = _mesa_GetConvolutionFilter;
354
   exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;
355
   exec->GetConvolutionParameterfvEXT = _mesa_GetConvolutionParameterfv;
356
   exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;
357
   exec->GetConvolutionParameterivEXT = _mesa_GetConvolutionParameteriv;
358
   exec->GetHistogram = _mesa_GetHistogram;
359
   exec->GetHistogramEXT = _mesa_GetHistogram;
360
   exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;
361
   exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
362
   exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;
363
   exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
364
   exec->GetMinmax = _mesa_GetMinmax;
365
   exec->GetMinmaxEXT = _mesa_GetMinmax;
366
   exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;
367
   exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
368
   exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;
369
   exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
370
   exec->GetSeparableFilter = _mesa_GetSeparableFilter;
371
   exec->GetSeparableFilterEXT = _mesa_GetSeparableFilter;
372
   exec->Histogram = _mesa_Histogram;
373
   exec->Minmax = _mesa_Minmax;
374
   exec->ResetHistogram = _mesa_ResetHistogram;
375
   exec->ResetMinmax = _mesa_ResetMinmax;
376
   exec->SeparableFilter2D = _mesa_SeparableFilter2D;
377
 
378
   /* 2. GL_EXT_blend_color */
379
#if 0
380
   exec->BlendColorEXT = _mesa_BlendColorEXT;
381
#endif
382
 
383
   /* 3. GL_EXT_polygon_offset */
384
   exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;
385
 
386
   /* 6. GL_EXT_texture3d */
387
#if 0
388
   exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D;
389
   exec->TexImage3DEXT = _mesa_TexImage3DEXT;
390
   exec->TexSubImage3DEXT = _mesa_TexSubImage3D;
391
#endif
392
 
393
   /* 11. GL_EXT_histogram */
394
   exec->GetHistogramEXT = _mesa_GetHistogram;
395
   exec->GetHistogramParameterfvEXT = _mesa_GetHistogramParameterfv;
396
   exec->GetHistogramParameterivEXT = _mesa_GetHistogramParameteriv;
397
   exec->GetMinmaxEXT = _mesa_GetMinmax;
398
   exec->GetMinmaxParameterfvEXT = _mesa_GetMinmaxParameterfv;
399
   exec->GetMinmaxParameterivEXT = _mesa_GetMinmaxParameteriv;
400
 
401
   /* ?. GL_SGIX_pixel_texture */
402
   exec->PixelTexGenSGIX = _mesa_PixelTexGenSGIX;
403
 
404
   /* 15. GL_SGIS_pixel_texture */
405
   exec->PixelTexGenParameteriSGIS = _mesa_PixelTexGenParameteriSGIS;
406
   exec->PixelTexGenParameterivSGIS = _mesa_PixelTexGenParameterivSGIS;
407
   exec->PixelTexGenParameterfSGIS = _mesa_PixelTexGenParameterfSGIS;
408
   exec->PixelTexGenParameterfvSGIS = _mesa_PixelTexGenParameterfvSGIS;
409
   exec->GetPixelTexGenParameterivSGIS = _mesa_GetPixelTexGenParameterivSGIS;
410
   exec->GetPixelTexGenParameterfvSGIS = _mesa_GetPixelTexGenParameterfvSGIS;
411
 
412
   /* 30. GL_EXT_vertex_array */
413
   exec->ColorPointerEXT = _mesa_ColorPointerEXT;
414
   exec->EdgeFlagPointerEXT = _mesa_EdgeFlagPointerEXT;
415
   exec->IndexPointerEXT = _mesa_IndexPointerEXT;
416
   exec->NormalPointerEXT = _mesa_NormalPointerEXT;
417
   exec->TexCoordPointerEXT = _mesa_TexCoordPointerEXT;
418
   exec->VertexPointerEXT = _mesa_VertexPointerEXT;
419
 
420
   /* 37. GL_EXT_blend_minmax */
421
#if 0
422
   exec->BlendEquationEXT = _mesa_BlendEquationEXT;
423
#endif
424
 
425
   /* 54. GL_EXT_point_parameters */
426
   exec->PointParameterfEXT = _mesa_PointParameterfEXT;
427
   exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;
428
 
429
   /* 78. GL_EXT_paletted_texture */
430
#if 0
431
   exec->ColorTableEXT = _mesa_ColorTableEXT;
432
   exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;
433
#endif
434
   exec->GetColorTableEXT = _mesa_GetColorTable;
435
   exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
436
   exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
437
 
438
   /* 97. GL_EXT_compiled_vertex_array */
439
   exec->LockArraysEXT = _mesa_LockArraysEXT;
440
   exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;
441
 
442
   /* 148. GL_EXT_multi_draw_arrays */
443
   exec->MultiDrawArraysEXT = _mesa_MultiDrawArraysEXT;
444
   exec->MultiDrawElementsEXT = _mesa_MultiDrawElementsEXT;
445
 
446
   /* 173. GL_INGR_blend_func_separate */
447
   exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT;
448
 
449
   /* 196. GL_MESA_resize_buffers */
450
   exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;
451
 
452
   /* 197. GL_MESA_window_pos */
453
   exec->WindowPos2dMESA = _mesa_WindowPos2dMESA;
454
   exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA;
455
   exec->WindowPos2fMESA = _mesa_WindowPos2fMESA;
456
   exec->WindowPos2fvMESA = _mesa_WindowPos2fvMESA;
457
   exec->WindowPos2iMESA = _mesa_WindowPos2iMESA;
458
   exec->WindowPos2ivMESA = _mesa_WindowPos2ivMESA;
459
   exec->WindowPos2sMESA = _mesa_WindowPos2sMESA;
460
   exec->WindowPos2svMESA = _mesa_WindowPos2svMESA;
461
   exec->WindowPos3dMESA = _mesa_WindowPos3dMESA;
462
   exec->WindowPos3dvMESA = _mesa_WindowPos3dvMESA;
463
   exec->WindowPos3fMESA = _mesa_WindowPos3fMESA;
464
   exec->WindowPos3fvMESA = _mesa_WindowPos3fvMESA;
465
   exec->WindowPos3iMESA = _mesa_WindowPos3iMESA;
466
   exec->WindowPos3ivMESA = _mesa_WindowPos3ivMESA;
467
   exec->WindowPos3sMESA = _mesa_WindowPos3sMESA;
468
   exec->WindowPos3svMESA = _mesa_WindowPos3svMESA;
469
   exec->WindowPos4dMESA = _mesa_WindowPos4dMESA;
470
   exec->WindowPos4dvMESA = _mesa_WindowPos4dvMESA;
471
   exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;
472
   exec->WindowPos4fvMESA = _mesa_WindowPos4fvMESA;
473
   exec->WindowPos4iMESA = _mesa_WindowPos4iMESA;
474
   exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA;
475
   exec->WindowPos4sMESA = _mesa_WindowPos4sMESA;
476
   exec->WindowPos4svMESA = _mesa_WindowPos4svMESA;
477
 
478
   /* 233. GL_NV_vertex_program */
479
#if FEATURE_NV_vertex_program
480
   exec->BindProgramNV = _mesa_BindProgramNV;
481
   exec->DeleteProgramsNV = _mesa_DeleteProgramsNV;
482
   exec->ExecuteProgramNV = _mesa_ExecuteProgramNV;
483
   exec->GenProgramsNV = _mesa_GenProgramsNV;
484
   exec->AreProgramsResidentNV = _mesa_AreProgramsResidentNV;
485
   exec->RequestResidentProgramsNV = _mesa_RequestResidentProgramsNV;
486
   exec->GetProgramParameterfvNV = _mesa_GetProgramParameterfvNV;
487
   exec->GetProgramParameterdvNV = _mesa_GetProgramParameterdvNV;
488
   exec->GetProgramivNV = _mesa_GetProgramivNV;
489
   exec->GetProgramStringNV = _mesa_GetProgramStringNV;
490
   exec->GetTrackMatrixivNV = _mesa_GetTrackMatrixivNV;
491
   exec->GetVertexAttribdvNV = _mesa_GetVertexAttribdvNV;
492
   exec->GetVertexAttribfvNV = _mesa_GetVertexAttribfvNV;
493
   exec->GetVertexAttribivNV = _mesa_GetVertexAttribivNV;
494
   exec->GetVertexAttribPointervNV = _mesa_GetVertexAttribPointervNV;
495
   exec->IsProgramNV = _mesa_IsProgramNV;
496
   exec->LoadProgramNV = _mesa_LoadProgramNV;
497
   exec->ProgramParameter4dNV = _mesa_ProgramParameter4dNV;
498
   exec->ProgramParameter4dvNV = _mesa_ProgramParameter4dvNV;
499
   exec->ProgramParameter4fNV = _mesa_ProgramParameter4fNV;
500
   exec->ProgramParameter4fvNV = _mesa_ProgramParameter4fvNV;
501
   exec->ProgramParameters4dvNV = _mesa_ProgramParameters4dvNV;
502
   exec->ProgramParameters4fvNV = _mesa_ProgramParameters4fvNV;
503
   exec->TrackMatrixNV = _mesa_TrackMatrixNV;
504
   exec->VertexAttribPointerNV = _mesa_VertexAttribPointerNV;
505
#endif
506
 
507
   /* 262. GL_NV_point_sprite */
508
   exec->PointParameteriNV = _mesa_PointParameteriNV;
509
   exec->PointParameterivNV = _mesa_PointParameterivNV;
510
 
511
   /* 268. GL_EXT_stencil_two_side */
512
   exec->ActiveStencilFaceEXT = _mesa_ActiveStencilFaceEXT;
513
 
514
   /* ARB 1. GL_ARB_multitexture */
515
   exec->ActiveTextureARB = _mesa_ActiveTextureARB;
516
   exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;
517
 
518
   /* ARB 3. GL_ARB_transpose_matrix */
519
   exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;
520
   exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;
521
   exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;
522
   exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;
523
 
524
   /* ARB 5. GL_ARB_multisample */
525
   exec->SampleCoverageARB = _mesa_SampleCoverageARB;
526
 
527
   /* ARB 12. GL_ARB_texture_compression */
528
   exec->CompressedTexImage3DARB = _mesa_CompressedTexImage3DARB;
529
   exec->CompressedTexImage2DARB = _mesa_CompressedTexImage2DARB;
530
   exec->CompressedTexImage1DARB = _mesa_CompressedTexImage1DARB;
531
   exec->CompressedTexSubImage3DARB = _mesa_CompressedTexSubImage3DARB;
532
   exec->CompressedTexSubImage2DARB = _mesa_CompressedTexSubImage2DARB;
533
   exec->CompressedTexSubImage1DARB = _mesa_CompressedTexSubImage1DARB;
534
   exec->GetCompressedTexImageARB = _mesa_GetCompressedTexImageARB;
535
 
536
   /* ARB 14. GL_ARB_point_parameters */
537
   /* reuse EXT_point_parameters functions */
538
}
539
 
540
 
541
 
542
/**********************************************************************/
543
/*****                   State update logic                       *****/
544
/**********************************************************************/
545
 
546
 
547
/*
548
 * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET
549
 * in ctx->_TriangleCaps if needed.
550
 */
551
static void
552
update_polygon( GLcontext *ctx )
553
{
554
   ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);
555
 
556
   if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
557
      ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
558
 
559
   /* Any Polygon offsets enabled? */
560
   if (ctx->Polygon.OffsetPoint ||
561
       ctx->Polygon.OffsetLine ||
562
       ctx->Polygon.OffsetFill) {
563
      ctx->_TriangleCaps |= DD_TRI_OFFSET;
564
   }
565
}
566
 
567
static void
568
calculate_model_project_matrix( GLcontext *ctx )
569
{
570
   _math_matrix_mul_matrix( &ctx->_ModelProjectMatrix,
571
                            ctx->ProjectionMatrixStack.Top,
572
                            ctx->ModelviewMatrixStack.Top );
573
 
574
   _math_matrix_analyse( &ctx->_ModelProjectMatrix );
575
}
576
 
577
static void
578
update_modelview_scale( GLcontext *ctx )
579
{
580
   ctx->_ModelViewInvScale = 1.0F;
581
   if (ctx->ModelviewMatrixStack.Top->flags & (MAT_FLAG_UNIFORM_SCALE |
582
                               MAT_FLAG_GENERAL_SCALE |
583
                               MAT_FLAG_GENERAL_3D |
584
                               MAT_FLAG_GENERAL) ) {
585
      const GLfloat *m = ctx->ModelviewMatrixStack.Top->inv;
586
      GLfloat f = m[2] * m[2] + m[6] * m[6] + m[10] * m[10];
587
      if (f < 1e-12) f = 1.0;
588
      if (ctx->_NeedEyeCoords)
589
         ctx->_ModelViewInvScale = (GLfloat) (1.0/GL_SQRT(f));
590
      else
591
         ctx->_ModelViewInvScale = (GLfloat) GL_SQRT(f);
592
   }
593
}
594
 
595
 
596
/* Bring uptodate any state that relies on _NeedEyeCoords.
597
 */
598
static void
599
update_tnl_spaces( GLcontext *ctx, GLuint oldneedeyecoords )
600
{
601
   /* Check if the truth-value interpretations of the bitfields have
602
    * changed:
603
    */
604
   if ((oldneedeyecoords == 0) != (ctx->_NeedEyeCoords == 0)) {
605
      /* Recalculate all state that depends on _NeedEyeCoords.
606
       */
607
      update_modelview_scale(ctx);
608
      _mesa_compute_light_positions( ctx );
609
 
610
      if (ctx->Driver.LightingSpaceChange)
611
         ctx->Driver.LightingSpaceChange( ctx );
612
   }
613
   else {
614
      GLuint new_state = ctx->NewState;
615
 
616
      /* Recalculate that same state only if it has been invalidated
617
       * by other statechanges.
618
       */
619
      if (new_state & _NEW_MODELVIEW)
620
         update_modelview_scale(ctx);
621
 
622
      if (new_state & (_NEW_LIGHT|_NEW_MODELVIEW))
623
         _mesa_compute_light_positions( ctx );
624
   }
625
}
626
 
627
 
628
static void
629
update_drawbuffer( GLcontext *ctx )
630
{
631
   ctx->DrawBuffer->_Xmin = 0;
632
   ctx->DrawBuffer->_Ymin = 0;
633
   ctx->DrawBuffer->_Xmax = ctx->DrawBuffer->Width;
634
   ctx->DrawBuffer->_Ymax = ctx->DrawBuffer->Height;
635
   if (ctx->Scissor.Enabled) {
636
      if (ctx->Scissor.X > ctx->DrawBuffer->_Xmin) {
637
         ctx->DrawBuffer->_Xmin = ctx->Scissor.X;
638
      }
639
      if (ctx->Scissor.Y > ctx->DrawBuffer->_Ymin) {
640
         ctx->DrawBuffer->_Ymin = ctx->Scissor.Y;
641
      }
642
      if (ctx->Scissor.X + ctx->Scissor.Width < ctx->DrawBuffer->_Xmax) {
643
         ctx->DrawBuffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width;
644
      }
645
      if (ctx->Scissor.Y + ctx->Scissor.Height < ctx->DrawBuffer->_Ymax) {
646
         ctx->DrawBuffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height;
647
      }
648
   }
649
}
650
 
651
 
652
/* NOTE: This routine references Tranform attribute values to compute
653
 * userclip positions in clip space, but is only called on
654
 * _NEW_PROJECTION.  The _mesa_ClipPlane() function keeps these values
655
 * up to date across changes to the Transform attributes.
656
 */
657
static void
658
update_projection( GLcontext *ctx )
659
{
660
   _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
661
 
662
   /* Recompute clip plane positions in clipspace.  This is also done
663
    * in _mesa_ClipPlane().
664
    */
665
   if (ctx->Transform.ClipPlanesEnabled) {
666
      GLuint p;
667
      for (p = 0; p < ctx->Const.MaxClipPlanes; p++) {
668
         if (ctx->Transform.ClipPlanesEnabled & (1 << p)) {
669
            _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],
670
                                 ctx->Transform.EyeUserPlane[p],
671
                                 ctx->ProjectionMatrixStack.Top->inv );
672
         }
673
      }
674
   }
675
}
676
 
677
 
678
/*
679
 * Return a bitmask of IMAGE_*_BIT flags which to indicate which
680
 * pixel transfer operations are enabled.
681
 */
682
static void
683
update_image_transfer_state(GLcontext *ctx)
684
{
685
   GLuint mask = 0;
686
 
687
   if (ctx->Pixel.RedScale   != 1.0F || ctx->Pixel.RedBias   != 0.0F ||
688
       ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F ||
689
       ctx->Pixel.BlueScale  != 1.0F || ctx->Pixel.BlueBias  != 0.0F ||
690
       ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F)
691
      mask |= IMAGE_SCALE_BIAS_BIT;
692
 
693
   if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset)
694
      mask |= IMAGE_SHIFT_OFFSET_BIT;
695
 
696
   if (ctx->Pixel.MapColorFlag)
697
      mask |= IMAGE_MAP_COLOR_BIT;
698
 
699
   if (ctx->Pixel.ColorTableEnabled)
700
      mask |= IMAGE_COLOR_TABLE_BIT;
701
 
702
   if (ctx->Pixel.Convolution1DEnabled ||
703
       ctx->Pixel.Convolution2DEnabled ||
704
       ctx->Pixel.Separable2DEnabled) {
705
      mask |= IMAGE_CONVOLUTION_BIT;
706
      if (ctx->Pixel.PostConvolutionScale[0] != 1.0F ||
707
          ctx->Pixel.PostConvolutionScale[1] != 1.0F ||
708
          ctx->Pixel.PostConvolutionScale[2] != 1.0F ||
709
          ctx->Pixel.PostConvolutionScale[3] != 1.0F ||
710
          ctx->Pixel.PostConvolutionBias[0] != 0.0F ||
711
          ctx->Pixel.PostConvolutionBias[1] != 0.0F ||
712
          ctx->Pixel.PostConvolutionBias[2] != 0.0F ||
713
          ctx->Pixel.PostConvolutionBias[3] != 0.0F) {
714
         mask |= IMAGE_POST_CONVOLUTION_SCALE_BIAS;
715
      }
716
   }
717
 
718
   if (ctx->Pixel.PostConvolutionColorTableEnabled)
719
      mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT;
720
 
721
   if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY ||
722
       ctx->Pixel.PostColorMatrixScale[0] != 1.0F ||
723
       ctx->Pixel.PostColorMatrixBias[0]  != 0.0F ||
724
       ctx->Pixel.PostColorMatrixScale[1] != 1.0F ||
725
       ctx->Pixel.PostColorMatrixBias[1]  != 0.0F ||
726
       ctx->Pixel.PostColorMatrixScale[2] != 1.0F ||
727
       ctx->Pixel.PostColorMatrixBias[2]  != 0.0F ||
728
       ctx->Pixel.PostColorMatrixScale[3] != 1.0F ||
729
       ctx->Pixel.PostColorMatrixBias[3]  != 0.0F)
730
      mask |= IMAGE_COLOR_MATRIX_BIT;
731
 
732
   if (ctx->Pixel.PostColorMatrixColorTableEnabled)
733
      mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT;
734
 
735
   if (ctx->Pixel.HistogramEnabled)
736
      mask |= IMAGE_HISTOGRAM_BIT;
737
 
738
   if (ctx->Pixel.MinMaxEnabled)
739
      mask |= IMAGE_MIN_MAX_BIT;
740
 
741
   ctx->_ImageTransferState = mask;
742
}
743
 
744
 
745
 
746
 
747
/* Note: This routine refers to derived texture attribute values to
748
 * compute the ENABLE_TEXMAT flags, but is only called on
749
 * _NEW_TEXTURE_MATRIX.  On changes to _NEW_TEXTURE, the ENABLE_TEXMAT
750
 * flags are updated by _mesa_update_textures(), below.
751
 *
752
 * If both TEXTURE and TEXTURE_MATRIX change at once, these values
753
 * will be computed twice.
754
 */
755
static void
756
update_texture_matrices( GLcontext *ctx )
757
{
758
   GLuint i;
759
 
760
   ctx->Texture._TexMatEnabled = 0;
761
 
762
   for (i=0; i < ctx->Const.MaxTextureUnits; i++) {
763
      if (ctx->TextureMatrixStack[i].Top->flags & MAT_DIRTY) {
764
         _math_matrix_analyse( ctx->TextureMatrixStack[i].Top );
765
 
766
         if (ctx->Texture.Unit[i]._ReallyEnabled &&
767
             ctx->TextureMatrixStack[i].Top->type != MATRIX_IDENTITY)
768
            ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i);
769
 
770
         if (ctx->Driver.TextureMatrix)
771
            ctx->Driver.TextureMatrix( ctx, i, ctx->TextureMatrixStack[i].Top);
772
      }
773
   }
774
}
775
 
776
 
777
/* Note: This routine refers to derived texture matrix values to
778
 * compute the ENABLE_TEXMAT flags, but is only called on
779
 * _NEW_TEXTURE.  On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT
780
 * flags are updated by _mesa_update_texture_matrices, above.
781
 *
782
 * If both TEXTURE and TEXTURE_MATRIX change at once, these values
783
 * will be computed twice.
784
 */
785
static void
786
update_texture_state( GLcontext *ctx )
787
{
788
   GLuint unit;
789
 
790
   ctx->Texture._EnabledUnits = 0;
791
   ctx->Texture._GenFlags = 0;
792
   ctx->_NeedNormals &= ~NEED_NORMALS_TEXGEN;
793
   ctx->_NeedEyeCoords &= ~NEED_EYE_TEXGEN;
794
   ctx->Texture._TexMatEnabled = 0;
795
   ctx->Texture._TexGenEnabled = 0;
796
 
797
   /* Update texture unit state.
798
    */
799
   for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
800
      struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
801
 
802
      texUnit->_ReallyEnabled = 0;
803
      texUnit->_GenFlags = 0;
804
 
805
      if (!texUnit->Enabled)
806
         continue;
807
 
808
      /* Look for the highest-priority texture target that's enabled and
809
       * complete.  That's the one we'll use for texturing.
810
       */
811
      if (texUnit->Enabled & TEXTURE_CUBE_BIT) {
812
         struct gl_texture_object *texObj = texUnit->CurrentCubeMap;
813
         if (!texObj->Complete) {
814
            _mesa_test_texobj_completeness(ctx, texObj);
815
         }
816
         if (texObj->Complete) {
817
            texUnit->_ReallyEnabled = TEXTURE_CUBE_BIT;
818
            texUnit->_Current = texObj;
819
         }
820
      }
821
 
822
      if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_3D_BIT)) {
823
         struct gl_texture_object *texObj = texUnit->Current3D;
824
         if (!texObj->Complete) {
825
            _mesa_test_texobj_completeness(ctx, texObj);
826
         }
827
         if (texObj->Complete) {
828
            texUnit->_ReallyEnabled = TEXTURE_3D_BIT;
829
            texUnit->_Current = texObj;
830
         }
831
      }
832
 
833
      if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_RECT_BIT)) {
834
         struct gl_texture_object *texObj = texUnit->CurrentRect;
835
         if (!texObj->Complete) {
836
            _mesa_test_texobj_completeness(ctx, texObj);
837
         }
838
         if (texObj->Complete) {
839
            texUnit->_ReallyEnabled = TEXTURE_RECT_BIT;
840
            texUnit->_Current = texObj;
841
         }
842
      }
843
 
844
      if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_2D_BIT)) {
845
         struct gl_texture_object *texObj = texUnit->Current2D;
846
         if (!texObj->Complete) {
847
            _mesa_test_texobj_completeness(ctx, texObj);
848
         }
849
         if (texObj->Complete) {
850
            texUnit->_ReallyEnabled = TEXTURE_2D_BIT;
851
            texUnit->_Current = texObj;
852
         }
853
      }
854
 
855
      if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_1D_BIT)) {
856
         struct gl_texture_object *texObj = texUnit->Current1D;
857
         if (!texObj->Complete) {
858
            _mesa_test_texobj_completeness(ctx, texObj);
859
         }
860
         if (texObj->Complete) {
861
            texUnit->_ReallyEnabled = TEXTURE_1D_BIT;
862
            texUnit->_Current = texObj;
863
         }
864
      }
865
 
866
      if (!texUnit->_ReallyEnabled) {
867
         texUnit->_Current = NULL;
868
         continue;
869
      }
870
 
871
      if (texUnit->_ReallyEnabled)
872
         ctx->Texture._EnabledUnits |= (1 << unit);
873
 
874
      if (texUnit->TexGenEnabled) {
875
         if (texUnit->TexGenEnabled & S_BIT) {
876
            texUnit->_GenFlags |= texUnit->_GenBitS;
877
         }
878
         if (texUnit->TexGenEnabled & T_BIT) {
879
            texUnit->_GenFlags |= texUnit->_GenBitT;
880
         }
881
         if (texUnit->TexGenEnabled & Q_BIT) {
882
            texUnit->_GenFlags |= texUnit->_GenBitQ;
883
         }
884
         if (texUnit->TexGenEnabled & R_BIT) {
885
            texUnit->_GenFlags |= texUnit->_GenBitR;
886
         }
887
 
888
         ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit);
889
         ctx->Texture._GenFlags |= texUnit->_GenFlags;
890
      }
891
 
892
      if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY)
893
         ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit);
894
   }
895
 
896
   if (ctx->Texture._GenFlags & TEXGEN_NEED_NORMALS) {
897
      ctx->_NeedNormals |= NEED_NORMALS_TEXGEN;
898
      ctx->_NeedEyeCoords |= NEED_EYE_TEXGEN;
899
   }
900
 
901
   if (ctx->Texture._GenFlags & TEXGEN_NEED_EYE_COORD) {
902
      ctx->_NeedEyeCoords |= NEED_EYE_TEXGEN;
903
   }
904
}
905
 
906
 
907
 
908
/*
909
 * If ctx->NewState is non-zero then this function MUST be called before
910
 * rendering any primitive.  Basically, function pointers and miscellaneous
911
 * flags are updated to reflect the current state of the state machine.
912
 *
913
 * The above constraint is now maintained largely by the two Exec
914
 * dispatch tables, which trigger the appropriate flush on transition
915
 * between State and Geometry modes.
916
 *
917
 * Special care is taken with the derived value _NeedEyeCoords.  This
918
 * is a bitflag which is updated with information from a number of
919
 * attribute groups (MODELVIEW, LIGHT, TEXTURE).  A lot of derived
920
 * state references this value, and must be treated with care to
921
 * ensure that updates are done correctly.  All state dependent on
922
 * _NeedEyeCoords is calculated from within _mesa_update_tnl_spaces(),
923
 * and from nowhere else.
924
 */
925
void _mesa_update_state( GLcontext *ctx )
926
{
927
   const GLuint new_state = ctx->NewState;
928
   const GLuint oldneedeyecoords = ctx->_NeedEyeCoords;
929
 
930
   if (MESA_VERBOSE & VERBOSE_STATE)
931
      _mesa_print_state("_mesa_update_state", new_state);
932
 
933
   if (new_state & _NEW_MODELVIEW)
934
      _math_matrix_analyse( ctx->ModelviewMatrixStack.Top );
935
 
936
   if (new_state & _NEW_PROJECTION)
937
      update_projection( ctx );
938
 
939
   if (new_state & _NEW_TEXTURE_MATRIX)
940
      update_texture_matrices( ctx );
941
 
942
   if (new_state & _NEW_COLOR_MATRIX)
943
      _math_matrix_analyse( ctx->ColorMatrixStack.Top );
944
 
945
   /* References ColorMatrix.type (derived above).
946
    */
947
   if (new_state & _IMAGE_NEW_TRANSFER_STATE)
948
      update_image_transfer_state(ctx);
949
 
950
   /* Contributes to NeedEyeCoords, NeedNormals.
951
    */
952
   if (new_state & _NEW_TEXTURE)
953
      update_texture_state( ctx );
954
 
955
   if (new_state & (_NEW_BUFFERS|_NEW_SCISSOR))
956
      update_drawbuffer( ctx );
957
 
958
   if (new_state & _NEW_POLYGON)
959
      update_polygon( ctx );
960
 
961
   /* Contributes to NeedEyeCoords, NeedNormals.
962
    */
963
   if (new_state & _NEW_LIGHT)
964
      _mesa_update_lighting( ctx );
965
 
966
   /* We can light in object space if the modelview matrix preserves
967
    * lengths and relative angles.
968
    */
969
   if (new_state & (_NEW_MODELVIEW|_NEW_LIGHT)) {
970
      ctx->_NeedEyeCoords &= ~NEED_EYE_LIGHT_MODELVIEW;
971
      if (ctx->Light.Enabled &&
972
          !TEST_MAT_FLAGS( ctx->ModelviewMatrixStack.Top, MAT_FLAGS_LENGTH_PRESERVING))
973
            ctx->_NeedEyeCoords |= NEED_EYE_LIGHT_MODELVIEW;
974
   }
975
 
976
 
977
#if 0
978
   /* XXX this is a bit of a hack.  We should be checking elsewhere if
979
    * vertex program mode is enabled.  We set _NeedEyeCoords to zero to
980
    * ensure that the combined modelview/projection matrix is computed
981
    * in calculate_model_project_matrix().
982
    */
983
   if (ctx->VertexProgram.Enabled)
984
      ctx->_NeedEyeCoords = 0;
985
   /* KW: it's now always computed.
986
    */
987
#endif
988
 
989
   /* Keep ModelviewProject uptodate always to allow tnl
990
    * implementations that go model->clip even when eye is required.
991
    */
992
   if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
993
      calculate_model_project_matrix(ctx);
994
 
995
   /* ctx->_NeedEyeCoords is now uptodate.
996
    *
997
    * If the truth value of this variable has changed, update for the
998
    * new lighting space and recompute the positions of lights and the
999
    * normal transform.
1000
    *
1001
    * If the lighting space hasn't changed, may still need to recompute
1002
    * light positions & normal transforms for other reasons.
1003
    */
1004
   if (new_state & (_NEW_MODELVIEW |
1005
                    _NEW_LIGHT |
1006
                    _MESA_NEW_NEED_EYE_COORDS))
1007
      update_tnl_spaces( ctx, oldneedeyecoords );
1008
 
1009
   /*
1010
    * Here the driver sets up all the ctx->Driver function pointers
1011
    * to it's specific, private functions, and performs any
1012
    * internal state management necessary, including invalidating
1013
    * state of active modules.
1014
    *
1015
    * Set ctx->NewState to zero to avoid recursion if
1016
    * Driver.UpdateState() has to call FLUSH_VERTICES().  (fixed?)
1017
    */
1018
   ctx->NewState = 0;
1019
   ctx->Driver.UpdateState(ctx, new_state);
1020
   ctx->Array.NewState = 0;
1021
 
1022
   /* At this point we can do some assertions to be sure the required
1023
    * device driver function pointers are all initialized.
1024
    */
1025
   ASSERT(ctx->Driver.GetString);
1026
   ASSERT(ctx->Driver.UpdateState);
1027
   ASSERT(ctx->Driver.Clear);
1028
   ASSERT(ctx->Driver.GetBufferSize);
1029
   if (ctx->Visual.accumRedBits > 0) {
1030
      ASSERT(ctx->Driver.Accum);
1031
   }
1032
   ASSERT(ctx->Driver.DrawPixels);
1033
   ASSERT(ctx->Driver.ReadPixels);
1034
   ASSERT(ctx->Driver.CopyPixels);
1035
   ASSERT(ctx->Driver.Bitmap);
1036
   ASSERT(ctx->Driver.ResizeBuffers);
1037
   ASSERT(ctx->Driver.TexImage1D);
1038
   ASSERT(ctx->Driver.TexImage2D);
1039
   ASSERT(ctx->Driver.TexImage3D);
1040
   ASSERT(ctx->Driver.TexSubImage1D);
1041
   ASSERT(ctx->Driver.TexSubImage2D);
1042
   ASSERT(ctx->Driver.TexSubImage3D);
1043
   ASSERT(ctx->Driver.CopyTexImage1D);
1044
   ASSERT(ctx->Driver.CopyTexImage2D);
1045
   ASSERT(ctx->Driver.CopyTexSubImage1D);
1046
   ASSERT(ctx->Driver.CopyTexSubImage2D);
1047
   ASSERT(ctx->Driver.CopyTexSubImage3D);
1048
   if (ctx->Extensions.ARB_texture_compression) {
1049
#if 0  /* HW drivers need these, but not SW rasterizers */
1050
      ASSERT(ctx->Driver.CompressedTexImage1D);
1051
      ASSERT(ctx->Driver.CompressedTexImage2D);
1052
      ASSERT(ctx->Driver.CompressedTexImage3D);
1053
      ASSERT(ctx->Driver.CompressedTexSubImage1D);
1054
      ASSERT(ctx->Driver.CompressedTexSubImage2D);
1055
      ASSERT(ctx->Driver.CompressedTexSubImage3D);
1056
#endif
1057
   }
1058
}
1059
 
1060
/* Is this helpful?
1061
 */
1062
void
1063
_mesa_allow_light_in_model( GLcontext *ctx, GLboolean flag )
1064
{
1065
   if (flag)
1066
      ctx->_NeedEyeCoords &= ~NEED_EYE_DRIVER;
1067
   else
1068
      ctx->_NeedEyeCoords |= NEED_EYE_DRIVER;
1069
 
1070
   ctx->NewState |= _NEW_POINT; /* one of the bits from
1071
                                 * _MESA_NEW_NEED_EYE_COORDS.
1072
                                 */
1073
}