state.c revision 1b2ff69f468d609a88b1cd31041df2b81931816b 
1/* $Id: state.c,v 1.5 2000/03/11 23:23:26 brianp Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version:  3.3
6 *
7 * Copyright (C) 1999-2000  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 initializes the immediate-mode dispatch table (which may
30 * be state-dependant) and manages internal Mesa state update.
31 */
32
33
34#ifdef PC_HEADER
35#include "all.h"
36#else
37#include "glheader.h"
38#include "accum.h"
39#include "alpha.h"
40#include "attrib.h"
41#include "bitmap.h"
42#include "blend.h"
43#include "buffers.h"
44#include "clip.h"
45#include "colortab.h"
46#include "context.h"
47#include "copypix.h"
48#include "cva.h"
49#include "depth.h"
50#include "dlist.h"
51#include "drawpix.h"
52#include "enable.h"
53#include "eval.h"
54#include "get.h"
55#include "feedback.h"
56#include "fog.h"
57#include "hint.h"
58#include "imaging.h"
59#include "light.h"
60#include "lines.h"
61#include "logic.h"
62#include "masking.h"
63#include "matrix.h"
64#include "mmath.h"
65#include "pipeline.h"
66#include "pixel.h"
67#include "points.h"
68#include "polygon.h"
69#include "quads.h"
70#include "rastpos.h"
71#include "readpix.h"
72#include "rect.h"
73#include "scissor.h"
74#include "shade.h"
75#include "state.h"
76#include "stencil.h"
77#include "teximage.h"
78#include "texobj.h"
79#include "texstate.h"
80#include "texture.h"
81#include "triangle.h"
82#include "types.h"
83#include "varray.h"
84#include "vbfill.h"
85#include "vbrender.h"
86#include "winpos.h"
87#endif
88
89
90
91static int
92generic_noop(void)
93{
94#ifdef DEBUG
95   gl_problem(NULL, "undefined function dispatch");
96#endif
97   return 0;
98}
99
100
101void
102_mesa_init_no_op_table(struct _glapi_table *table)
103{
104   /* Check to be sure the dispatcher's table is at least as big as Mesa's. */
105   const GLuint size = sizeof(struct _glapi_table) / sizeof(void *);
106   assert(_glapi_get_dispatch_table_size() >= size);
107
108   {
109      const GLuint n = _glapi_get_dispatch_table_size();
110      GLuint i;
111      void **dispatch = (void **) table;
112      for (i = 0; i < n; i++) {
113         dispatch[i] = (void *) generic_noop;
114      }
115   }
116}
117
118
119/*
120 * Initialize the given dispatch table with pointers to Mesa's
121 * immediate-mode commands.
122 */
123void
124_mesa_init_exec_table(struct _glapi_table *exec)
125{
126   /* first initialize all dispatch slots to no-op */
127   _mesa_init_no_op_table(exec);
128
129   /* load the dispatch slots we understand */
130   exec->Accum = _mesa_Accum;
131   exec->AlphaFunc = _mesa_AlphaFunc;
132   exec->Begin = _mesa_Begin;
133   exec->Bitmap = _mesa_Bitmap;
134   exec->BlendFunc = _mesa_BlendFunc;
135   exec->CallList = _mesa_CallList;
136   exec->CallLists = _mesa_CallLists;
137   exec->Clear = _mesa_Clear;
138   exec->ClearAccum = _mesa_ClearAccum;
139   exec->ClearColor = _mesa_ClearColor;
140   exec->ClearDepth = _mesa_ClearDepth;
141   exec->ClearIndex = _mesa_ClearIndex;
142   exec->ClearStencil = _mesa_ClearStencil;
143   exec->ClipPlane = _mesa_ClipPlane;
144   exec->Color3b = _mesa_Color3b;
145   exec->Color3bv = _mesa_Color3bv;
146   exec->Color3d = _mesa_Color3d;
147   exec->Color3dv = _mesa_Color3dv;
148   exec->Color3f = _mesa_Color3f;
149   exec->Color3fv = _mesa_Color3fv;
150   exec->Color3i = _mesa_Color3i;
151   exec->Color3iv = _mesa_Color3iv;
152   exec->Color3s = _mesa_Color3s;
153   exec->Color3sv = _mesa_Color3sv;
154   exec->Color3ub = _mesa_Color3ub;
155   exec->Color3ubv = _mesa_Color3ubv;
156   exec->Color3ui = _mesa_Color3ui;
157   exec->Color3uiv = _mesa_Color3uiv;
158   exec->Color3us = _mesa_Color3us;
159   exec->Color3usv = _mesa_Color3usv;
160   exec->Color4b = _mesa_Color4b;
161   exec->Color4bv = _mesa_Color4bv;
162   exec->Color4d = _mesa_Color4d;
163   exec->Color4dv = _mesa_Color4dv;
164   exec->Color4f = _mesa_Color4f;
165   exec->Color4fv = _mesa_Color4fv;
166   exec->Color4i = _mesa_Color4i;
167   exec->Color4iv = _mesa_Color4iv;
168   exec->Color4s = _mesa_Color4s;
169   exec->Color4sv = _mesa_Color4sv;
170   exec->Color4ub = _mesa_Color4ub;
171   exec->Color4ubv = _mesa_Color4ubv;
172   exec->Color4ui = _mesa_Color4ui;
173   exec->Color4uiv = _mesa_Color4uiv;
174   exec->Color4us = _mesa_Color4us;
175   exec->Color4usv = _mesa_Color4usv;
176   exec->ColorMask = _mesa_ColorMask;
177   exec->ColorMaterial = _mesa_ColorMaterial;
178   exec->CopyPixels = _mesa_CopyPixels;
179   exec->CullFace = _mesa_CullFace;
180   exec->DeleteLists = _mesa_DeleteLists;
181   exec->DepthFunc = _mesa_DepthFunc;
182   exec->DepthMask = _mesa_DepthMask;
183   exec->DepthRange = _mesa_DepthRange;
184   exec->Disable = _mesa_Disable;
185   exec->DrawBuffer = _mesa_DrawBuffer;
186   exec->DrawPixels = _mesa_DrawPixels;
187   exec->EdgeFlag = _mesa_EdgeFlag;
188   exec->EdgeFlagv = _mesa_EdgeFlagv;
189   exec->Enable = _mesa_Enable;
190   exec->End = _mesa_End;
191   exec->EndList = _mesa_EndList;
192   exec->EvalCoord1d = _mesa_EvalCoord1d;
193   exec->EvalCoord1dv = _mesa_EvalCoord1dv;
194   exec->EvalCoord1f = _mesa_EvalCoord1f;
195   exec->EvalCoord1fv = _mesa_EvalCoord1fv;
196   exec->EvalCoord2d = _mesa_EvalCoord2d;
197   exec->EvalCoord2dv = _mesa_EvalCoord2dv;
198   exec->EvalCoord2f = _mesa_EvalCoord2f;
199   exec->EvalCoord2fv = _mesa_EvalCoord2fv;
200   exec->EvalMesh1 = _mesa_EvalMesh1;
201   exec->EvalMesh2 = _mesa_EvalMesh2;
202   exec->EvalPoint1 = _mesa_EvalPoint1;
203   exec->EvalPoint2 = _mesa_EvalPoint2;
204   exec->FeedbackBuffer = _mesa_FeedbackBuffer;
205   exec->Finish = _mesa_Finish;
206   exec->Flush = _mesa_Flush;
207   exec->Fogf = _mesa_Fogf;
208   exec->Fogfv = _mesa_Fogfv;
209   exec->Fogi = _mesa_Fogi;
210   exec->Fogiv = _mesa_Fogiv;
211   exec->FrontFace = _mesa_FrontFace;
212   exec->Frustum = _mesa_Frustum;
213   exec->GenLists = _mesa_GenLists;
214   exec->GetBooleanv = _mesa_GetBooleanv;
215   exec->GetClipPlane = _mesa_GetClipPlane;
216   exec->GetDoublev = _mesa_GetDoublev;
217   exec->GetError = _mesa_GetError;
218   exec->GetFloatv = _mesa_GetFloatv;
219   exec->GetIntegerv = _mesa_GetIntegerv;
220   exec->GetLightfv = _mesa_GetLightfv;
221   exec->GetLightiv = _mesa_GetLightiv;
222   exec->GetMapdv = _mesa_GetMapdv;
223   exec->GetMapfv = _mesa_GetMapfv;
224   exec->GetMapiv = _mesa_GetMapiv;
225   exec->GetMaterialfv = _mesa_GetMaterialfv;
226   exec->GetMaterialiv = _mesa_GetMaterialiv;
227   exec->GetPixelMapfv = _mesa_GetPixelMapfv;
228   exec->GetPixelMapuiv = _mesa_GetPixelMapuiv;
229   exec->GetPixelMapusv = _mesa_GetPixelMapusv;
230   exec->GetPolygonStipple = _mesa_GetPolygonStipple;
231   exec->GetString = _mesa_GetString;
232   exec->GetTexEnvfv = _mesa_GetTexEnvfv;
233   exec->GetTexEnviv = _mesa_GetTexEnviv;
234   exec->GetTexGendv = _mesa_GetTexGendv;
235   exec->GetTexGenfv = _mesa_GetTexGenfv;
236   exec->GetTexGeniv = _mesa_GetTexGeniv;
237   exec->GetTexImage = _mesa_GetTexImage;
238   exec->GetTexLevelParameterfv = _mesa_GetTexLevelParameterfv;
239   exec->GetTexLevelParameteriv = _mesa_GetTexLevelParameteriv;
240   exec->GetTexParameterfv = _mesa_GetTexParameterfv;
241   exec->GetTexParameteriv = _mesa_GetTexParameteriv;
242   exec->Hint = _mesa_Hint;
243   exec->IndexMask = _mesa_IndexMask;
244   exec->Indexd = _mesa_Indexd;
245   exec->Indexdv = _mesa_Indexdv;
246   exec->Indexf = _mesa_Indexf;
247   exec->Indexfv = _mesa_Indexfv;
248   exec->Indexi = _mesa_Indexi;
249   exec->Indexiv = _mesa_Indexiv;
250   exec->Indexs = _mesa_Indexs;
251   exec->Indexsv = _mesa_Indexsv;
252   exec->InitNames = _mesa_InitNames;
253   exec->IsEnabled = _mesa_IsEnabled;
254   exec->IsList = _mesa_IsList;
255   exec->LightModelf = _mesa_LightModelf;
256   exec->LightModelfv = _mesa_LightModelfv;
257   exec->LightModeli = _mesa_LightModeli;
258   exec->LightModeliv = _mesa_LightModeliv;
259   exec->Lightf = _mesa_Lightf;
260   exec->Lightfv = _mesa_Lightfv;
261   exec->Lighti = _mesa_Lighti;
262   exec->Lightiv = _mesa_Lightiv;
263   exec->LineStipple = _mesa_LineStipple;
264   exec->LineWidth = _mesa_LineWidth;
265   exec->ListBase = _mesa_ListBase;
266   exec->LoadIdentity = _mesa_LoadIdentity;
267   exec->LoadMatrixd = _mesa_LoadMatrixd;
268   exec->LoadMatrixf = _mesa_LoadMatrixf;
269   exec->LoadName = _mesa_LoadName;
270   exec->LogicOp = _mesa_LogicOp;
271   exec->Map1d = _mesa_Map1d;
272   exec->Map1f = _mesa_Map1f;
273   exec->Map2d = _mesa_Map2d;
274   exec->Map2f = _mesa_Map2f;
275   exec->MapGrid1d = _mesa_MapGrid1d;
276   exec->MapGrid1f = _mesa_MapGrid1f;
277   exec->MapGrid2d = _mesa_MapGrid2d;
278   exec->MapGrid2f = _mesa_MapGrid2f;
279   exec->Materialf = _mesa_Materialf;
280   exec->Materialfv = _mesa_Materialfv;
281   exec->Materiali = _mesa_Materiali;
282   exec->Materialiv = _mesa_Materialiv;
283   exec->MatrixMode = _mesa_MatrixMode;
284   exec->MultMatrixd = _mesa_MultMatrixd;
285   exec->MultMatrixf = _mesa_MultMatrixf;
286   exec->NewList = _mesa_NewList;
287   exec->Normal3b = _mesa_Normal3b;
288   exec->Normal3bv = _mesa_Normal3bv;
289   exec->Normal3d = _mesa_Normal3d;
290   exec->Normal3dv = _mesa_Normal3dv;
291   exec->Normal3f = _mesa_Normal3f;
292   exec->Normal3fv = _mesa_Normal3fv;
293   exec->Normal3i = _mesa_Normal3i;
294   exec->Normal3iv = _mesa_Normal3iv;
295   exec->Normal3s = _mesa_Normal3s;
296   exec->Normal3sv = _mesa_Normal3sv;
297   exec->Ortho = _mesa_Ortho;
298   exec->PassThrough = _mesa_PassThrough;
299   exec->PixelMapfv = _mesa_PixelMapfv;
300   exec->PixelMapuiv = _mesa_PixelMapuiv;
301   exec->PixelMapusv = _mesa_PixelMapusv;
302   exec->PixelStoref = _mesa_PixelStoref;
303   exec->PixelStorei = _mesa_PixelStorei;
304   exec->PixelTransferf = _mesa_PixelTransferf;
305   exec->PixelTransferi = _mesa_PixelTransferi;
306   exec->PixelZoom = _mesa_PixelZoom;
307   exec->PointSize = _mesa_PointSize;
308   exec->PolygonMode = _mesa_PolygonMode;
309   exec->PolygonOffset = _mesa_PolygonOffset;
310   exec->PolygonStipple = _mesa_PolygonStipple;
311   exec->PopAttrib = _mesa_PopAttrib;
312   exec->PopMatrix = _mesa_PopMatrix;
313   exec->PopName = _mesa_PopName;
314   exec->PushAttrib = _mesa_PushAttrib;
315   exec->PushMatrix = _mesa_PushMatrix;
316   exec->PushName = _mesa_PushName;
317   exec->RasterPos2d = _mesa_RasterPos2d;
318   exec->RasterPos2dv = _mesa_RasterPos2dv;
319   exec->RasterPos2f = _mesa_RasterPos2f;
320   exec->RasterPos2fv = _mesa_RasterPos2fv;
321   exec->RasterPos2i = _mesa_RasterPos2i;
322   exec->RasterPos2iv = _mesa_RasterPos2iv;
323   exec->RasterPos2s = _mesa_RasterPos2s;
324   exec->RasterPos2sv = _mesa_RasterPos2sv;
325   exec->RasterPos3d = _mesa_RasterPos3d;
326   exec->RasterPos3dv = _mesa_RasterPos3dv;
327   exec->RasterPos3f = _mesa_RasterPos3f;
328   exec->RasterPos3fv = _mesa_RasterPos3fv;
329   exec->RasterPos3i = _mesa_RasterPos3i;
330   exec->RasterPos3iv = _mesa_RasterPos3iv;
331   exec->RasterPos3s = _mesa_RasterPos3s;
332   exec->RasterPos3sv = _mesa_RasterPos3sv;
333   exec->RasterPos4d = _mesa_RasterPos4d;
334   exec->RasterPos4dv = _mesa_RasterPos4dv;
335   exec->RasterPos4f = _mesa_RasterPos4f;
336   exec->RasterPos4fv = _mesa_RasterPos4fv;
337   exec->RasterPos4i = _mesa_RasterPos4i;
338   exec->RasterPos4iv = _mesa_RasterPos4iv;
339   exec->RasterPos4s = _mesa_RasterPos4s;
340   exec->RasterPos4sv = _mesa_RasterPos4sv;
341   exec->ReadBuffer = _mesa_ReadBuffer;
342   exec->ReadPixels = _mesa_ReadPixels;
343   exec->Rectd = _mesa_Rectd;
344   exec->Rectdv = _mesa_Rectdv;
345   exec->Rectf = _mesa_Rectf;
346   exec->Rectfv = _mesa_Rectfv;
347   exec->Recti = _mesa_Recti;
348   exec->Rectiv = _mesa_Rectiv;
349   exec->Rects = _mesa_Rects;
350   exec->Rectsv = _mesa_Rectsv;
351   exec->RenderMode = _mesa_RenderMode;
352   exec->Rotated = _mesa_Rotated;
353   exec->Rotatef = _mesa_Rotatef;
354   exec->Scaled = _mesa_Scaled;
355   exec->Scalef = _mesa_Scalef;
356   exec->Scissor = _mesa_Scissor;
357   exec->SelectBuffer = _mesa_SelectBuffer;
358   exec->ShadeModel = _mesa_ShadeModel;
359   exec->StencilFunc = _mesa_StencilFunc;
360   exec->StencilMask = _mesa_StencilMask;
361   exec->StencilOp = _mesa_StencilOp;
362   exec->TexCoord1d = _mesa_TexCoord1d;
363   exec->TexCoord1dv = _mesa_TexCoord1dv;
364   exec->TexCoord1f = _mesa_TexCoord1f;
365   exec->TexCoord1fv = _mesa_TexCoord1fv;
366   exec->TexCoord1i = _mesa_TexCoord1i;
367   exec->TexCoord1iv = _mesa_TexCoord1iv;
368   exec->TexCoord1s = _mesa_TexCoord1s;
369   exec->TexCoord1sv = _mesa_TexCoord1sv;
370   exec->TexCoord2d = _mesa_TexCoord2d;
371   exec->TexCoord2dv = _mesa_TexCoord2dv;
372   exec->TexCoord2f = _mesa_TexCoord2f;
373   exec->TexCoord2fv = _mesa_TexCoord2fv;
374   exec->TexCoord2i = _mesa_TexCoord2i;
375   exec->TexCoord2iv = _mesa_TexCoord2iv;
376   exec->TexCoord2s = _mesa_TexCoord2s;
377   exec->TexCoord2sv = _mesa_TexCoord2sv;
378   exec->TexCoord3d = _mesa_TexCoord3d;
379   exec->TexCoord3dv = _mesa_TexCoord3dv;
380   exec->TexCoord3f = _mesa_TexCoord3f;
381   exec->TexCoord3fv = _mesa_TexCoord3fv;
382   exec->TexCoord3i = _mesa_TexCoord3i;
383   exec->TexCoord3iv = _mesa_TexCoord3iv;
384   exec->TexCoord3s = _mesa_TexCoord3s;
385   exec->TexCoord3sv = _mesa_TexCoord3sv;
386   exec->TexCoord4d = _mesa_TexCoord4d;
387   exec->TexCoord4dv = _mesa_TexCoord4dv;
388   exec->TexCoord4f = _mesa_TexCoord4f;
389   exec->TexCoord4fv = _mesa_TexCoord4fv;
390   exec->TexCoord4i = _mesa_TexCoord4i;
391   exec->TexCoord4iv = _mesa_TexCoord4iv;
392   exec->TexCoord4s = _mesa_TexCoord4s;
393   exec->TexCoord4sv = _mesa_TexCoord4sv;
394   exec->TexEnvf = _mesa_TexEnvf;
395   exec->TexEnvfv = _mesa_TexEnvfv;
396   exec->TexEnvi = _mesa_TexEnvi;
397   exec->TexEnviv = _mesa_TexEnviv;
398   exec->TexGend = _mesa_TexGend;
399   exec->TexGendv = _mesa_TexGendv;
400   exec->TexGenf = _mesa_TexGenf;
401   exec->TexGenfv = _mesa_TexGenfv;
402   exec->TexGeni = _mesa_TexGeni;
403   exec->TexGeniv = _mesa_TexGeniv;
404   exec->TexImage1D = _mesa_TexImage1D;
405   exec->TexImage2D = _mesa_TexImage2D;
406   exec->TexParameterf = _mesa_TexParameterf;
407   exec->TexParameterfv = _mesa_TexParameterfv;
408   exec->TexParameteri = _mesa_TexParameteri;
409   exec->TexParameteriv = _mesa_TexParameteriv;
410   exec->Translated = _mesa_Translated;
411   exec->Translatef = _mesa_Translatef;
412   exec->Vertex2d = _mesa_Vertex2d;
413   exec->Vertex2dv = _mesa_Vertex2dv;
414   exec->Vertex2f = _mesa_Vertex2f;
415   exec->Vertex2fv = _mesa_Vertex2fv;
416   exec->Vertex2i = _mesa_Vertex2i;
417   exec->Vertex2iv = _mesa_Vertex2iv;
418   exec->Vertex2s = _mesa_Vertex2s;
419   exec->Vertex2sv = _mesa_Vertex2sv;
420   exec->Vertex3d = _mesa_Vertex3d;
421   exec->Vertex3dv = _mesa_Vertex3dv;
422   exec->Vertex3f = _mesa_Vertex3f;
423   exec->Vertex3fv = _mesa_Vertex3fv;
424   exec->Vertex3i = _mesa_Vertex3i;
425   exec->Vertex3iv = _mesa_Vertex3iv;
426   exec->Vertex3s = _mesa_Vertex3s;
427   exec->Vertex3sv = _mesa_Vertex3sv;
428   exec->Vertex4d = _mesa_Vertex4d;
429   exec->Vertex4dv = _mesa_Vertex4dv;
430   exec->Vertex4f = _mesa_Vertex4f;
431   exec->Vertex4fv = _mesa_Vertex4fv;
432   exec->Vertex4i = _mesa_Vertex4i;
433   exec->Vertex4iv = _mesa_Vertex4iv;
434   exec->Vertex4s = _mesa_Vertex4s;
435   exec->Vertex4sv = _mesa_Vertex4sv;
436   exec->Viewport = _mesa_Viewport;
437
438   /* 1.1 */
439   exec->AreTexturesResident = _mesa_AreTexturesResident;
440   exec->ArrayElement = _mesa_ArrayElement;
441   exec->BindTexture = _mesa_BindTexture;
442   exec->ColorPointer = _mesa_ColorPointer;
443   exec->CopyTexImage1D = _mesa_CopyTexImage1D;
444   exec->CopyTexImage2D = _mesa_CopyTexImage2D;
445   exec->CopyTexSubImage1D = _mesa_CopyTexSubImage1D;
446   exec->CopyTexSubImage2D = _mesa_CopyTexSubImage2D;
447   exec->DeleteTextures = _mesa_DeleteTextures;
448   exec->DisableClientState = _mesa_DisableClientState;
449   exec->DrawArrays = _mesa_DrawArrays;
450   exec->DrawElements = _mesa_DrawElements;
451   exec->EdgeFlagPointer = _mesa_EdgeFlagPointer;
452   exec->EnableClientState = _mesa_EnableClientState;
453   exec->GenTextures = _mesa_GenTextures;
454   exec->GetPointerv = _mesa_GetPointerv;
455   exec->IndexPointer = _mesa_IndexPointer;
456   exec->Indexub = _mesa_Indexub;
457   exec->Indexubv = _mesa_Indexubv;
458   exec->InterleavedArrays = _mesa_InterleavedArrays;
459   exec->IsTexture = _mesa_IsTexture;
460   exec->NormalPointer = _mesa_NormalPointer;
461   exec->PopClientAttrib = _mesa_PopClientAttrib;
462   exec->PrioritizeTextures = _mesa_PrioritizeTextures;
463   exec->PushClientAttrib = _mesa_PushClientAttrib;
464   exec->TexCoordPointer = _mesa_TexCoordPointer;
465   exec->TexSubImage1D = _mesa_TexSubImage1D;
466   exec->TexSubImage2D = _mesa_TexSubImage2D;
467   exec->VertexPointer = _mesa_VertexPointer;
468
469   /* 1.2 */
470   exec->CopyTexSubImage3D = _mesa_CopyTexSubImage3D;
471   exec->DrawRangeElements = _mesa_DrawRangeElements;
472   exec->TexImage3D = _mesa_TexImage3D;
473   exec->TexSubImage3D = _mesa_TexSubImage3D;
474
475
476   /* OpenGL 1.2  GL_ARB_imaging */
477   exec->BlendColor = _mesa_BlendColor;
478   exec->BlendEquation = _mesa_BlendEquation;
479   exec->ColorSubTable = _mesa_ColorSubTable;
480   exec->ColorTable = _mesa_ColorTable;
481   exec->ColorTableParameterfv = _mesa_ColorTableParameterfv;
482   exec->ColorTableParameteriv = _mesa_ColorTableParameteriv;
483   exec->ConvolutionFilter1D = _mesa_ConvolutionFilter1D;
484   exec->ConvolutionFilter2D = _mesa_ConvolutionFilter2D;
485   exec->ConvolutionParameterf = _mesa_ConvolutionParameterf;
486   exec->ConvolutionParameterfv = _mesa_ConvolutionParameterfv;
487   exec->ConvolutionParameteri = _mesa_ConvolutionParameteri;
488   exec->ConvolutionParameteriv = _mesa_ConvolutionParameteriv;
489   exec->CopyColorSubTable = _mesa_CopyColorSubTable;
490   exec->CopyColorTable = _mesa_CopyColorTable;
491   exec->CopyConvolutionFilter1D = _mesa_CopyConvolutionFilter1D;
492   exec->CopyConvolutionFilter2D = _mesa_CopyConvolutionFilter2D;
493   exec->GetColorTable = _mesa_GetColorTable;
494   exec->GetColorTableParameterfv = _mesa_GetColorTableParameterfv;
495   exec->GetColorTableParameteriv = _mesa_GetColorTableParameteriv;
496   exec->GetConvolutionFilter = _mesa_GetConvolutionFilter;
497   exec->GetConvolutionParameterfv = _mesa_GetConvolutionParameterfv;
498   exec->GetConvolutionParameteriv = _mesa_GetConvolutionParameteriv;
499   exec->GetHistogram = _mesa_GetHistogram;
500   exec->GetHistogramParameterfv = _mesa_GetHistogramParameterfv;
501   exec->GetHistogramParameteriv = _mesa_GetHistogramParameteriv;
502   exec->GetMinmax = _mesa_GetMinmax;
503   exec->GetMinmaxParameterfv = _mesa_GetMinmaxParameterfv;
504   exec->GetMinmaxParameteriv = _mesa_GetMinmaxParameteriv;
505   exec->GetSeparableFilter = _mesa_GetSeparableFilter;
506   exec->Histogram = _mesa_Histogram;
507   exec->Minmax = _mesa_Minmax;
508   exec->ResetHistogram = _mesa_ResetHistogram;
509   exec->ResetMinmax = _mesa_ResetMinmax;
510   exec->SeparableFilter2D = _mesa_SeparableFilter2D;
511
512   /* GL_EXT_texture3d */
513#if 0
514   exec->CopyTexSubImage3DEXT = _mesa_CopyTexSubImage3D;
515   exec->TexImage3DEXT = _mesa_TexImage3DEXT;
516   exec->TexSubImage3DEXT = _mesa_TexSubImage3D;
517#endif
518
519   /* GL_EXT_paletted_texture */
520#if 0
521   exec->ColorTableEXT = _mesa_ColorTableEXT;
522   exec->ColorSubTableEXT = _mesa_ColorSubTableEXT;
523#endif
524   exec->GetColorTableEXT = _mesa_GetColorTable;
525   exec->GetColorTableParameterfvEXT = _mesa_GetColorTableParameterfv;
526   exec->GetColorTableParameterivEXT = _mesa_GetColorTableParameteriv;
527
528   /* GL_EXT_compiled_vertex_array */
529   exec->LockArraysEXT = _mesa_LockArraysEXT;
530   exec->UnlockArraysEXT = _mesa_UnlockArraysEXT;
531
532   /* GL_EXT_point_parameters */
533   exec->PointParameterfEXT = _mesa_PointParameterfEXT;
534   exec->PointParameterfvEXT = _mesa_PointParameterfvEXT;
535
536   /* GL_PGI_misc_hints */
537   exec->HintPGI = _mesa_HintPGI;
538
539   /* GL_EXT_polygon_offset */
540   exec->PolygonOffsetEXT = _mesa_PolygonOffsetEXT;
541
542   /* GL_EXT_blend_minmax */
543#if 0
544   exec->BlendEquationEXT = _mesa_BlendEquationEXT;
545#endif
546
547   /* GL_EXT_blend_color */
548#if 0
549   exec->BlendColorEXT = _mesa_BlendColorEXT;
550#endif
551
552   /* GL_ARB_multitexture */
553   exec->ActiveTextureARB = _mesa_ActiveTextureARB;
554   exec->ClientActiveTextureARB = _mesa_ClientActiveTextureARB;
555   exec->MultiTexCoord1dARB = _mesa_MultiTexCoord1dARB;
556   exec->MultiTexCoord1dvARB = _mesa_MultiTexCoord1dvARB;
557   exec->MultiTexCoord1fARB = _mesa_MultiTexCoord1fARB;
558   exec->MultiTexCoord1fvARB = _mesa_MultiTexCoord1fvARB;
559   exec->MultiTexCoord1iARB = _mesa_MultiTexCoord1iARB;
560   exec->MultiTexCoord1ivARB = _mesa_MultiTexCoord1ivARB;
561   exec->MultiTexCoord1sARB = _mesa_MultiTexCoord1sARB;
562   exec->MultiTexCoord1svARB = _mesa_MultiTexCoord1svARB;
563   exec->MultiTexCoord2dARB = _mesa_MultiTexCoord2dARB;
564   exec->MultiTexCoord2dvARB = _mesa_MultiTexCoord2dvARB;
565   exec->MultiTexCoord2fARB = _mesa_MultiTexCoord2fARB;
566   exec->MultiTexCoord2fvARB = _mesa_MultiTexCoord2fvARB;
567   exec->MultiTexCoord2iARB = _mesa_MultiTexCoord2iARB;
568   exec->MultiTexCoord2ivARB = _mesa_MultiTexCoord2ivARB;
569   exec->MultiTexCoord2sARB = _mesa_MultiTexCoord2sARB;
570   exec->MultiTexCoord2svARB = _mesa_MultiTexCoord2svARB;
571   exec->MultiTexCoord3dARB = _mesa_MultiTexCoord3dARB;
572   exec->MultiTexCoord3dvARB = _mesa_MultiTexCoord3dvARB;
573   exec->MultiTexCoord3fARB = _mesa_MultiTexCoord3fARB;
574   exec->MultiTexCoord3fvARB = _mesa_MultiTexCoord3fvARB;
575   exec->MultiTexCoord3iARB = _mesa_MultiTexCoord3iARB;
576   exec->MultiTexCoord3ivARB = _mesa_MultiTexCoord3ivARB;
577   exec->MultiTexCoord3sARB = _mesa_MultiTexCoord3sARB;
578   exec->MultiTexCoord3svARB = _mesa_MultiTexCoord3svARB;
579   exec->MultiTexCoord4dARB = _mesa_MultiTexCoord4dARB;
580   exec->MultiTexCoord4dvARB = _mesa_MultiTexCoord4dvARB;
581   exec->MultiTexCoord4fARB = _mesa_MultiTexCoord4fARB;
582   exec->MultiTexCoord4fvARB = _mesa_MultiTexCoord4fvARB;
583   exec->MultiTexCoord4iARB = _mesa_MultiTexCoord4iARB;
584   exec->MultiTexCoord4ivARB = _mesa_MultiTexCoord4ivARB;
585   exec->MultiTexCoord4sARB = _mesa_MultiTexCoord4sARB;
586   exec->MultiTexCoord4svARB = _mesa_MultiTexCoord4svARB;
587
588   /* GL_INGR_blend_func_separate */
589   exec->BlendFuncSeparateEXT = _mesa_BlendFuncSeparateEXT;
590
591   /* GL_MESA_window_pos */
592   exec->WindowPos2dMESA = _mesa_WindowPos2dMESA;
593   exec->WindowPos2dvMESA = _mesa_WindowPos2dvMESA;
594   exec->WindowPos2fMESA = _mesa_WindowPos2fMESA;
595   exec->WindowPos2fvMESA = _mesa_WindowPos2fvMESA;
596   exec->WindowPos2iMESA = _mesa_WindowPos2iMESA;
597   exec->WindowPos2ivMESA = _mesa_WindowPos2ivMESA;
598   exec->WindowPos2sMESA = _mesa_WindowPos2sMESA;
599   exec->WindowPos2svMESA = _mesa_WindowPos2svMESA;
600   exec->WindowPos3dMESA = _mesa_WindowPos3dMESA;
601   exec->WindowPos3dvMESA = _mesa_WindowPos3dvMESA;
602   exec->WindowPos3fMESA = _mesa_WindowPos3fMESA;
603   exec->WindowPos3fvMESA = _mesa_WindowPos3fvMESA;
604   exec->WindowPos3iMESA = _mesa_WindowPos3iMESA;
605   exec->WindowPos3ivMESA = _mesa_WindowPos3ivMESA;
606   exec->WindowPos3sMESA = _mesa_WindowPos3sMESA;
607   exec->WindowPos3svMESA = _mesa_WindowPos3svMESA;
608   exec->WindowPos4dMESA = _mesa_WindowPos4dMESA;
609   exec->WindowPos4dvMESA = _mesa_WindowPos4dvMESA;
610   exec->WindowPos4fMESA = _mesa_WindowPos4fMESA;
611   exec->WindowPos4fvMESA = _mesa_WindowPos4fvMESA;
612   exec->WindowPos4iMESA = _mesa_WindowPos4iMESA;
613   exec->WindowPos4ivMESA = _mesa_WindowPos4ivMESA;
614   exec->WindowPos4sMESA = _mesa_WindowPos4sMESA;
615   exec->WindowPos4svMESA = _mesa_WindowPos4svMESA;
616
617   /* GL_MESA_resize_buffers */
618   exec->ResizeBuffersMESA = _mesa_ResizeBuffersMESA;
619
620   /* GL_ARB_transpose_matrix */
621   exec->LoadTransposeMatrixdARB = _mesa_LoadTransposeMatrixdARB;
622   exec->LoadTransposeMatrixfARB = _mesa_LoadTransposeMatrixfARB;
623   exec->MultTransposeMatrixdARB = _mesa_MultTransposeMatrixdARB;
624   exec->MultTransposeMatrixfARB = _mesa_MultTransposeMatrixfARB;
625}
626
627
628/**********************************************************************/
629/*****                   State update logic                       *****/
630/**********************************************************************/
631
632
633/*
634 * Since the device driver may or may not support pixel logic ops we
635 * have to make some extensive tests to determine whether or not
636 * software-implemented logic operations have to be used.
637 */
638static void update_pixel_logic( GLcontext *ctx )
639{
640   if (ctx->Visual->RGBAflag) {
641      /* RGBA mode blending w/ Logic Op */
642      if (ctx->Color.ColorLogicOpEnabled) {
643	 if (ctx->Driver.LogicOp
644             && (*ctx->Driver.LogicOp)( ctx, ctx->Color.LogicOp )) {
645	    /* Device driver can do logic, don't have to do it in software */
646	    ctx->Color.SWLogicOpEnabled = GL_FALSE;
647	 }
648	 else {
649	    /* Device driver can't do logic op so we do it in software */
650	    ctx->Color.SWLogicOpEnabled = GL_TRUE;
651	 }
652      }
653      else {
654	 /* no logic op */
655	 if (ctx->Driver.LogicOp) {
656            (void) (*ctx->Driver.LogicOp)( ctx, GL_COPY );
657         }
658	 ctx->Color.SWLogicOpEnabled = GL_FALSE;
659      }
660   }
661   else {
662      /* CI mode Logic Op */
663      if (ctx->Color.IndexLogicOpEnabled) {
664	 if (ctx->Driver.LogicOp
665             && (*ctx->Driver.LogicOp)( ctx, ctx->Color.LogicOp )) {
666	    /* Device driver can do logic, don't have to do it in software */
667	    ctx->Color.SWLogicOpEnabled = GL_FALSE;
668	 }
669	 else {
670	    /* Device driver can't do logic op so we do it in software */
671	    ctx->Color.SWLogicOpEnabled = GL_TRUE;
672	 }
673      }
674      else {
675	 /* no logic op */
676	 if (ctx->Driver.LogicOp) {
677            (void) (*ctx->Driver.LogicOp)( ctx, GL_COPY );
678         }
679	 ctx->Color.SWLogicOpEnabled = GL_FALSE;
680      }
681   }
682}
683
684
685
686/*
687 * Check if software implemented RGBA or Color Index masking is needed.
688 */
689static void update_pixel_masking( GLcontext *ctx )
690{
691   if (ctx->Visual->RGBAflag) {
692      GLuint *colorMask = (GLuint *) ctx->Color.ColorMask;
693      if (*colorMask == 0xffffffff) {
694         /* disable masking */
695         if (ctx->Driver.ColorMask) {
696            (void) (*ctx->Driver.ColorMask)( ctx, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
697         }
698         ctx->Color.SWmasking = GL_FALSE;
699      }
700      else {
701         /* Ask driver to do color masking, if it can't then
702          * do it in software
703          */
704         GLboolean red   = ctx->Color.ColorMask[RCOMP] ? GL_TRUE : GL_FALSE;
705         GLboolean green = ctx->Color.ColorMask[GCOMP] ? GL_TRUE : GL_FALSE;
706         GLboolean blue  = ctx->Color.ColorMask[BCOMP] ? GL_TRUE : GL_FALSE;
707         GLboolean alpha = ctx->Color.ColorMask[ACOMP] ? GL_TRUE : GL_FALSE;
708         if (ctx->Driver.ColorMask
709             && (*ctx->Driver.ColorMask)( ctx, red, green, blue, alpha )) {
710            ctx->Color.SWmasking = GL_FALSE;
711         }
712         else {
713            ctx->Color.SWmasking = GL_TRUE;
714         }
715      }
716   }
717   else {
718      if (ctx->Color.IndexMask==0xffffffff) {
719         /* disable masking */
720         if (ctx->Driver.IndexMask) {
721            (void) (*ctx->Driver.IndexMask)( ctx, 0xffffffff );
722         }
723         ctx->Color.SWmasking = GL_FALSE;
724      }
725      else {
726         /* Ask driver to do index masking, if it can't then
727          * do it in software
728          */
729         if (ctx->Driver.IndexMask
730             && (*ctx->Driver.IndexMask)( ctx, ctx->Color.IndexMask )) {
731            ctx->Color.SWmasking = GL_FALSE;
732         }
733         else {
734            ctx->Color.SWmasking = GL_TRUE;
735         }
736      }
737   }
738}
739
740
741static void update_fog_mode( GLcontext *ctx )
742{
743   int old_mode = ctx->FogMode;
744
745   if (ctx->Fog.Enabled) {
746      if (ctx->Texture.Enabled)
747         ctx->FogMode = FOG_FRAGMENT;
748      else if (ctx->Hint.Fog == GL_NICEST)
749         ctx->FogMode = FOG_FRAGMENT;
750      else
751         ctx->FogMode = FOG_VERTEX;
752
753      if (ctx->Driver.GetParameteri)
754         if ((ctx->Driver.GetParameteri)( ctx, DD_HAVE_HARDWARE_FOG ))
755            ctx->FogMode = FOG_FRAGMENT;
756   }
757   else {
758      ctx->FogMode = FOG_NONE;
759   }
760
761   if (old_mode != ctx->FogMode)
762      ctx->NewState |= NEW_FOG;
763}
764
765
766/*
767 * Recompute the value of ctx->RasterMask, etc. according to
768 * the current context.
769 */
770static void update_rasterflags( GLcontext *ctx )
771{
772   ctx->RasterMask = 0;
773
774   if (ctx->Color.AlphaEnabled)		ctx->RasterMask |= ALPHATEST_BIT;
775   if (ctx->Color.BlendEnabled)		ctx->RasterMask |= BLEND_BIT;
776   if (ctx->Depth.Test)			ctx->RasterMask |= DEPTH_BIT;
777   if (ctx->FogMode==FOG_FRAGMENT)	ctx->RasterMask |= FOG_BIT;
778   if (ctx->Color.SWLogicOpEnabled)	ctx->RasterMask |= LOGIC_OP_BIT;
779   if (ctx->Scissor.Enabled)		ctx->RasterMask |= SCISSOR_BIT;
780   if (ctx->Stencil.Enabled)		ctx->RasterMask |= STENCIL_BIT;
781   if (ctx->Color.SWmasking)		ctx->RasterMask |= MASKING_BIT;
782
783   if (ctx->Visual->SoftwareAlpha && ctx->Color.ColorMask[ACOMP]
784       && ctx->Color.DrawBuffer != GL_NONE)
785      ctx->RasterMask |= ALPHABUF_BIT;
786
787   if (   ctx->Viewport.X<0
788       || ctx->Viewport.X + ctx->Viewport.Width > ctx->DrawBuffer->Width
789       || ctx->Viewport.Y<0
790       || ctx->Viewport.Y + ctx->Viewport.Height > ctx->DrawBuffer->Height) {
791      ctx->RasterMask |= WINCLIP_BIT;
792   }
793
794   if (ctx->Depth.OcclusionTest) {
795      if (ctx->Color.ColorMask[0] == 0 &&
796          ctx->Color.ColorMask[1] == 0 &&
797          ctx->Color.ColorMask[2] == 0 &&
798          ctx->Color.ColorMask[3] == 0 &&
799          ctx->Depth.Mask == GL_FALSE &&
800          !ctx->Stencil.Enabled) {
801         ctx->RasterMask |= OCCLUSION_BIT;
802      }
803   }
804
805   /* If we're not drawing to exactly one color buffer set the
806    * MULTI_DRAW_BIT flag.  Also set it if we're drawing to no
807    * buffers or the RGBA or CI mask disables all writes.
808    */
809   ctx->TriangleCaps &= ~DD_MULTIDRAW;
810
811   if (ctx->Color.MultiDrawBuffer) {
812      ctx->RasterMask |= MULTI_DRAW_BIT;
813      ctx->TriangleCaps |= DD_MULTIDRAW;
814   }
815   else if (ctx->Color.DrawBuffer==GL_NONE) {
816      ctx->RasterMask |= MULTI_DRAW_BIT;
817      ctx->TriangleCaps |= DD_MULTIDRAW;
818   }
819   else if (ctx->Visual->RGBAflag && ctx->Color.ColorMask==0) {
820      /* all RGBA channels disabled */
821      ctx->RasterMask |= MULTI_DRAW_BIT;
822      ctx->TriangleCaps |= DD_MULTIDRAW;
823      ctx->Color.DrawDestMask = 0;
824   }
825   else if (!ctx->Visual->RGBAflag && ctx->Color.IndexMask==0) {
826      /* all color index bits disabled */
827      ctx->RasterMask |= MULTI_DRAW_BIT;
828      ctx->TriangleCaps |= DD_MULTIDRAW;
829      ctx->Color.DrawDestMask = 0;
830   }
831}
832
833
834void gl_print_state( const char *msg, GLuint state )
835{
836   fprintf(stderr,
837	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
838	   msg,
839	   state,
840	   (state & NEW_LIGHTING)         ? "lighting, " : "",
841	   (state & NEW_RASTER_OPS)       ? "raster-ops, " : "",
842	   (state & NEW_TEXTURING)        ? "texturing, " : "",
843	   (state & NEW_POLYGON)          ? "polygon, " : "",
844	   (state & NEW_DRVSTATE0)        ? "driver-0, " : "",
845	   (state & NEW_DRVSTATE1)        ? "driver-1, " : "",
846	   (state & NEW_DRVSTATE2)        ? "driver-2, " : "",
847	   (state & NEW_DRVSTATE3)        ? "driver-3, " : "",
848	   (state & NEW_MODELVIEW)        ? "modelview, " : "",
849	   (state & NEW_PROJECTION)       ? "projection, " : "",
850	   (state & NEW_TEXTURE_MATRIX)   ? "texture-matrix, " : "",
851	   (state & NEW_USER_CLIP)        ? "user-clip, " : "",
852	   (state & NEW_TEXTURE_ENV)      ? "texture-env, " : "",
853	   (state & NEW_CLIENT_STATE)     ? "client-state, " : "",
854	   (state & NEW_FOG)              ? "fog, " : "",
855	   (state & NEW_NORMAL_TRANSFORM) ? "normal-transform, " : "",
856	   (state & NEW_VIEWPORT)         ? "viewport, " : "",
857	   (state & NEW_TEXTURE_ENABLE)   ? "texture-enable, " : "");
858}
859
860
861void gl_print_enable_flags( const char *msg, GLuint flags )
862{
863   fprintf(stderr,
864	   "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s\n",
865	   msg,
866	   flags,
867	   (flags & ENABLE_TEX0)       ? "tex-0, " : "",
868	   (flags & ENABLE_TEX1)       ? "tex-1, " : "",
869	   (flags & ENABLE_LIGHT)      ? "light, " : "",
870	   (flags & ENABLE_FOG)        ? "fog, " : "",
871	   (flags & ENABLE_USERCLIP)   ? "userclip, " : "",
872	   (flags & ENABLE_TEXGEN0)    ? "tex-gen-0, " : "",
873	   (flags & ENABLE_TEXGEN1)    ? "tex-gen-1, " : "",
874	   (flags & ENABLE_TEXMAT0)    ? "tex-mat-0, " : "",
875	   (flags & ENABLE_TEXMAT1)    ? "tex-mat-1, " : "",
876	   (flags & ENABLE_NORMALIZE)  ? "normalize, " : "",
877	   (flags & ENABLE_RESCALE)    ? "rescale, " : "");
878}
879
880
881/*
882 * If ctx->NewState is non-zero then this function MUST be called before
883 * rendering any primitive.  Basically, function pointers and miscellaneous
884 * flags are updated to reflect the current state of the state machine.
885 */
886void gl_update_state( GLcontext *ctx )
887{
888   GLuint i;
889
890   if (MESA_VERBOSE & VERBOSE_STATE)
891      gl_print_state("", ctx->NewState);
892
893   if (ctx->NewState & NEW_CLIENT_STATE)
894      gl_update_client_state( ctx );
895
896   if ((ctx->NewState & NEW_TEXTURE_ENABLE) &&
897       (ctx->Enabled & ENABLE_TEX_ANY) != ctx->Texture.Enabled)
898      ctx->NewState |= NEW_TEXTURING | NEW_RASTER_OPS;
899
900   if (ctx->NewState & NEW_TEXTURE_ENV) {
901      if (ctx->Texture.Unit[0].EnvMode == ctx->Texture.Unit[0].LastEnvMode &&
902	  ctx->Texture.Unit[1].EnvMode == ctx->Texture.Unit[1].LastEnvMode)
903	 ctx->NewState &= ~NEW_TEXTURE_ENV;
904      ctx->Texture.Unit[0].LastEnvMode = ctx->Texture.Unit[0].EnvMode;
905      ctx->Texture.Unit[1].LastEnvMode = ctx->Texture.Unit[1].EnvMode;
906   }
907
908   if (ctx->NewState & NEW_TEXTURE_MATRIX) {
909      ctx->Enabled &= ~(ENABLE_TEXMAT0|ENABLE_TEXMAT1);
910
911      for (i=0; i < MAX_TEXTURE_UNITS; i++) {
912	 if (ctx->TextureMatrix[i].flags & MAT_DIRTY_ALL_OVER)
913	 {
914	    gl_matrix_analyze( &ctx->TextureMatrix[i] );
915	    ctx->TextureMatrix[i].flags &= ~MAT_DIRTY_DEPENDENTS;
916
917	    if (ctx->Texture.Unit[i].Enabled &&
918		ctx->TextureMatrix[i].type != MATRIX_IDENTITY)
919	       ctx->Enabled |= ENABLE_TEXMAT0 << i;
920	 }
921      }
922   }
923
924   if (ctx->NewState & (NEW_TEXTURING | NEW_TEXTURE_ENABLE)) {
925      ctx->Texture.NeedNormals = GL_FALSE;
926      gl_update_dirty_texobjs(ctx);
927      ctx->Enabled &= ~(ENABLE_TEXGEN0|ENABLE_TEXGEN1);
928      ctx->Texture.ReallyEnabled = 0;
929
930      for (i=0; i < MAX_TEXTURE_UNITS; i++) {
931	 if (ctx->Texture.Unit[i].Enabled) {
932	    gl_update_texture_unit( ctx, &ctx->Texture.Unit[i] );
933
934	    ctx->Texture.ReallyEnabled |=
935	       ctx->Texture.Unit[i].ReallyEnabled<<(i*4);
936
937	    if (ctx->Texture.Unit[i].GenFlags != 0) {
938	       ctx->Enabled |= ENABLE_TEXGEN0 << i;
939
940	       if (ctx->Texture.Unit[i].GenFlags & TEXGEN_NEED_NORMALS)
941	       {
942		  ctx->Texture.NeedNormals = GL_TRUE;
943		  ctx->Texture.NeedEyeCoords = GL_TRUE;
944	       }
945
946	       if (ctx->Texture.Unit[i].GenFlags & TEXGEN_NEED_EYE_COORD)
947	       {
948		  ctx->Texture.NeedEyeCoords = GL_TRUE;
949	       }
950	    }
951	 }
952      }
953
954      ctx->Texture.Enabled = ctx->Enabled & ENABLE_TEX_ANY;
955      ctx->NeedNormals = (ctx->Light.Enabled || ctx->Texture.NeedNormals);
956   }
957
958   if (ctx->NewState & (NEW_RASTER_OPS | NEW_LIGHTING | NEW_FOG)) {
959
960
961      if (ctx->NewState & NEW_RASTER_OPS) {
962	 update_pixel_logic(ctx);
963	 update_pixel_masking(ctx);
964	 update_fog_mode(ctx);
965	 update_rasterflags(ctx);
966	 if (ctx->Driver.Dither) {
967	    (*ctx->Driver.Dither)( ctx, ctx->Color.DitherFlag );
968	 }
969
970	 /* Check if incoming colors can be modified during rasterization */
971	 if (ctx->Fog.Enabled ||
972	     ctx->Texture.Enabled ||
973	     ctx->Color.BlendEnabled ||
974	     ctx->Color.SWmasking ||
975	     ctx->Color.SWLogicOpEnabled) {
976	    ctx->MutablePixels = GL_TRUE;
977	 }
978	 else {
979	    ctx->MutablePixels = GL_FALSE;
980	 }
981
982	 /* update scissor region */
983
984	 ctx->DrawBuffer->Xmin = 0;
985	 ctx->DrawBuffer->Ymin = 0;
986	 ctx->DrawBuffer->Xmax = ctx->DrawBuffer->Width-1;
987	 ctx->DrawBuffer->Ymax = ctx->DrawBuffer->Height-1;
988	 if (ctx->Scissor.Enabled) {
989	    if (ctx->Scissor.X > ctx->DrawBuffer->Xmin) {
990	       ctx->DrawBuffer->Xmin = ctx->Scissor.X;
991	    }
992	    if (ctx->Scissor.Y > ctx->DrawBuffer->Ymin) {
993	       ctx->DrawBuffer->Ymin = ctx->Scissor.Y;
994	    }
995	    if (ctx->Scissor.X + ctx->Scissor.Width - 1 < ctx->DrawBuffer->Xmax) {
996	       ctx->DrawBuffer->Xmax = ctx->Scissor.X + ctx->Scissor.Width - 1;
997	    }
998	    if (ctx->Scissor.Y + ctx->Scissor.Height - 1 < ctx->DrawBuffer->Ymax) {
999	       ctx->DrawBuffer->Ymax = ctx->Scissor.Y + ctx->Scissor.Height - 1;
1000	    }
1001	 }
1002      }
1003
1004      if (ctx->NewState & NEW_LIGHTING) {
1005	 ctx->TriangleCaps &= ~(DD_TRI_LIGHT_TWOSIDE|DD_LIGHTING_CULL);
1006	 if (ctx->Light.Enabled) {
1007	    if (ctx->Light.Model.TwoSide)
1008	       ctx->TriangleCaps |= (DD_TRI_LIGHT_TWOSIDE|DD_LIGHTING_CULL);
1009	    gl_update_lighting(ctx);
1010	 }
1011      }
1012   }
1013
1014   if (ctx->NewState & (NEW_POLYGON | NEW_LIGHTING)) {
1015
1016      ctx->TriangleCaps &= ~DD_TRI_CULL_FRONT_BACK;
1017
1018      if (ctx->NewState & NEW_POLYGON) {
1019	 /* Setup CullBits bitmask */
1020	 if (ctx->Polygon.CullFlag) {
1021	    ctx->backface_sign = 1;
1022	    switch(ctx->Polygon.CullFaceMode) {
1023	    case GL_BACK:
1024	       if(ctx->Polygon.FrontFace==GL_CCW)
1025		  ctx->backface_sign = -1;
1026	       ctx->Polygon.CullBits = 1;
1027	       break;
1028	    case GL_FRONT:
1029	       if(ctx->Polygon.FrontFace!=GL_CCW)
1030		  ctx->backface_sign = -1;
1031	       ctx->Polygon.CullBits = 2;
1032	       break;
1033	    default:
1034	    case GL_FRONT_AND_BACK:
1035	       ctx->backface_sign = 0;
1036	       ctx->Polygon.CullBits = 0;
1037	       ctx->TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
1038	       break;
1039	    }
1040	 }
1041	 else {
1042	    ctx->Polygon.CullBits = 3;
1043	    ctx->backface_sign = 0;
1044	 }
1045
1046	 /* Any Polygon offsets enabled? */
1047	 ctx->TriangleCaps &= ~DD_TRI_OFFSET;
1048
1049	 if (ctx->Polygon.OffsetPoint ||
1050	     ctx->Polygon.OffsetLine ||
1051	     ctx->Polygon.OffsetFill)
1052	    ctx->TriangleCaps |= DD_TRI_OFFSET;
1053
1054	 /* reset Z offsets now */
1055	 ctx->PointZoffset   = 0.0;
1056	 ctx->LineZoffset    = 0.0;
1057	 ctx->PolygonZoffset = 0.0;
1058      }
1059   }
1060
1061   if (ctx->NewState & ~(NEW_CLIENT_STATE|
1062			 NEW_DRIVER_STATE|NEW_USER_CLIP|
1063			 NEW_POLYGON))
1064      gl_update_clipmask(ctx);
1065
1066   if (ctx->NewState & (NEW_LIGHTING|
1067			NEW_RASTER_OPS|
1068			NEW_TEXTURING|
1069			NEW_TEXTURE_ENABLE|
1070			NEW_TEXTURE_ENV|
1071			NEW_POLYGON|
1072			NEW_DRVSTATE0|
1073			NEW_DRVSTATE1|
1074			NEW_DRVSTATE2|
1075			NEW_DRVSTATE3|
1076			NEW_USER_CLIP))
1077   {
1078      ctx->IndirectTriangles = ctx->TriangleCaps & ~ctx->Driver.TriangleCaps;
1079      ctx->IndirectTriangles |= DD_SW_RASTERIZE;
1080
1081      if (MESA_VERBOSE&VERBOSE_CULL)
1082	 gl_print_tri_caps("initial indirect tris", ctx->IndirectTriangles);
1083
1084      ctx->Driver.PointsFunc = NULL;
1085      ctx->Driver.LineFunc = NULL;
1086      ctx->Driver.TriangleFunc = NULL;
1087      ctx->Driver.QuadFunc = NULL;
1088      ctx->Driver.RectFunc = NULL;
1089      ctx->Driver.RenderVBClippedTab = NULL;
1090      ctx->Driver.RenderVBCulledTab = NULL;
1091      ctx->Driver.RenderVBRawTab = NULL;
1092
1093      /*
1094       * Here the driver sets up all the ctx->Driver function pointers to
1095       * it's specific, private functions.
1096       */
1097      ctx->Driver.UpdateState(ctx);
1098
1099      if (MESA_VERBOSE&VERBOSE_CULL)
1100	 gl_print_tri_caps("indirect tris", ctx->IndirectTriangles);
1101
1102      /*
1103       * In case the driver didn't hook in an optimized point, line or
1104       * triangle function we'll now select "core/fallback" point, line
1105       * and triangle functions.
1106       */
1107      if (ctx->IndirectTriangles & DD_SW_RASTERIZE) {
1108	 gl_set_point_function(ctx);
1109	 gl_set_line_function(ctx);
1110	 gl_set_triangle_function(ctx);
1111	 gl_set_quad_function(ctx);
1112
1113	 if ((ctx->IndirectTriangles &
1114	      (DD_TRI_SW_RASTERIZE|DD_QUAD_SW_RASTERIZE|DD_TRI_CULL)) ==
1115	     (DD_TRI_SW_RASTERIZE|DD_QUAD_SW_RASTERIZE|DD_TRI_CULL))
1116	    ctx->IndirectTriangles &= ~DD_TRI_CULL;
1117      }
1118
1119      if (MESA_VERBOSE&VERBOSE_CULL)
1120	 gl_print_tri_caps("indirect tris 2", ctx->IndirectTriangles);
1121
1122      gl_set_render_vb_function(ctx);
1123   }
1124
1125   /* Should only be calc'd when !need_eye_coords and not culling.
1126    */
1127   if (ctx->NewState & (NEW_MODELVIEW|NEW_PROJECTION)) {
1128      if (ctx->NewState & NEW_MODELVIEW) {
1129	 gl_matrix_analyze( &ctx->ModelView );
1130	 ctx->ProjectionMatrix.flags &= ~MAT_DIRTY_DEPENDENTS;
1131      }
1132
1133      if (ctx->NewState & NEW_PROJECTION) {
1134	 gl_matrix_analyze( &ctx->ProjectionMatrix );
1135	 ctx->ProjectionMatrix.flags &= ~MAT_DIRTY_DEPENDENTS;
1136
1137	 if (ctx->Transform.AnyClip) {
1138	    gl_update_userclip( ctx );
1139	 }
1140      }
1141
1142      gl_calculate_model_project_matrix( ctx );
1143      ctx->ModelProjectWinMatrixUptodate = 0;
1144   }
1145
1146   /* Figure out whether we can light in object space or not.  If we
1147    * can, find the current positions of the lights in object space
1148    */
1149   if ((ctx->Enabled & (ENABLE_POINT_ATTEN | ENABLE_LIGHT | ENABLE_FOG |
1150			ENABLE_TEXGEN0 | ENABLE_TEXGEN1)) &&
1151       (ctx->NewState & (NEW_LIGHTING |
1152                         NEW_FOG |
1153			 NEW_MODELVIEW |
1154			 NEW_PROJECTION |
1155			 NEW_TEXTURING |
1156			 NEW_RASTER_OPS |
1157			 NEW_USER_CLIP)))
1158   {
1159      GLboolean oldcoord, oldnorm;
1160
1161      oldcoord = ctx->NeedEyeCoords;
1162      oldnorm = ctx->NeedEyeNormals;
1163
1164      ctx->NeedNormals = (ctx->Light.Enabled || ctx->Texture.NeedNormals);
1165      ctx->NeedEyeCoords = ((ctx->Fog.Enabled && ctx->Hint.Fog != GL_NICEST) ||
1166			    ctx->Point.Attenuated);
1167      ctx->NeedEyeNormals = GL_FALSE;
1168
1169      if (ctx->Light.Enabled) {
1170	 if (ctx->Light.Flags & LIGHT_POSITIONAL) {
1171	    /* Need length for attenuation */
1172	    if (!TEST_MAT_FLAGS( &ctx->ModelView, MAT_FLAGS_LENGTH_PRESERVING))
1173	       ctx->NeedEyeCoords = GL_TRUE;
1174	 } else if (ctx->Light.NeedVertices) {
1175	    /* Need angle for spot calculations */
1176	    if (!TEST_MAT_FLAGS( &ctx->ModelView, MAT_FLAGS_ANGLE_PRESERVING))
1177	       ctx->NeedEyeCoords = GL_TRUE;
1178	 }
1179	 ctx->NeedEyeNormals = ctx->NeedEyeCoords;
1180      }
1181      if (ctx->Texture.Enabled || ctx->RenderMode==GL_FEEDBACK) {
1182	 if (ctx->Texture.NeedEyeCoords) ctx->NeedEyeCoords = GL_TRUE;
1183	 if (ctx->Texture.NeedNormals)
1184	    ctx->NeedNormals = ctx->NeedEyeNormals = GL_TRUE;
1185      }
1186
1187      ctx->vb_proj_matrix = &ctx->ModelProjectMatrix;
1188
1189      if (ctx->NeedEyeCoords)
1190	 ctx->vb_proj_matrix = &ctx->ProjectionMatrix;
1191
1192      if (ctx->Light.Enabled) {
1193	 gl_update_lighting_function(ctx);
1194
1195	 if ( (ctx->NewState & NEW_LIGHTING) ||
1196	      ((ctx->NewState & (NEW_MODELVIEW| NEW_PROJECTION)) &&
1197	       !ctx->NeedEyeCoords) ||
1198	      oldcoord != ctx->NeedEyeCoords ||
1199	      oldnorm != ctx->NeedEyeNormals) {
1200	    gl_compute_light_positions(ctx);
1201	 }
1202
1203	 ctx->rescale_factor = 1.0F;
1204
1205	 if (ctx->ModelView.flags & (MAT_FLAG_UNIFORM_SCALE |
1206				     MAT_FLAG_GENERAL_SCALE |
1207				     MAT_FLAG_GENERAL_3D |
1208				     MAT_FLAG_GENERAL) )
1209
1210	 {
1211	    GLfloat *m = ctx->ModelView.inv;
1212	    GLfloat f = m[2]*m[2] + m[6]*m[6] + m[10]*m[10];
1213	    if (f > 1e-12 && (f-1)*(f-1) > 1e-12)
1214	       ctx->rescale_factor = 1.0/GL_SQRT(f);
1215	 }
1216      }
1217
1218      gl_update_normal_transform( ctx );
1219   }
1220
1221   gl_update_pipelines(ctx);
1222   ctx->NewState = 0;
1223}
1224