state_texdiff.c@ 44289

最後變更在這個檔案從44289是 44289,由 vboxsync 提交於 12 年前
crOpenGL: saved state restoration fix
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1	/* Copyright (c) 2001, Stanford University
2	* All rights reserved
3	*
4	* See the file LICENSE.txt for information on redistributing this software.
5	*/
6
7	#include "state.h"
8	#include "state/cr_statetypes.h"
9	#include "state/cr_texture.h"
10	#include "cr_hash.h"
11	#include "cr_string.h"
12	#include "cr_mem.h"
13	#include "cr_version.h"
14	#include "state_internals.h"
15
16
17	#define UNIMPLEMENTED() crStateError(__LINE__,__FILE__,GL_INVALID_OPERATION, "Unimplemented something or other" )
18
19
20	#if 0 /* NOT USED??? */
21	void crStateTextureObjSwitchCallback( unsigned long key, void data1, void data2 )
22	{
23	CRTextureObj tobj = (CRTextureObj ) data1;
24	CRContext fromCtx = (CRContext ) data2;
25	unsigned int i = 0;
26	unsigned int j = 0;
27	CRbitvalue *bitID = fromCtx->bitid;
28	CRbitvalue nbitID[CR_MAX_BITARRAY];
29
30	for (j=0;j<CR_MAX_BITARRAY;j++)
31	nbitID[j] = ~bitID[j];
32
33	if (!tobj) return;
34
35	FILLDIRTY(tobj->dirty);
36	FILLDIRTY(tobj->imageBit);
37
38	for (i = 0; i < fromCtx->limits.maxTextureUnits; i++)
39	{
40	int j;
41
42	FILLDIRTY(tobj->paramsBit[i]);
43
44	switch (tobj->target)
45	{
46	case GL_TEXTURE_1D:
47	case GL_TEXTURE_2D:
48	for (j = 0; j <= fromCtx->texture.maxLevel; j++)
49	{
50	CRTextureLevel *tl = &(tobj->level[j]);
51	FILLDIRTY(tl->dirty);
52	}
53	break;
54	#ifdef CR_OPENGL_VERSION_1_2
55	case GL_TEXTURE_3D:
56	#endif
57	for (j = 0; j <= fromCtx->texture.max3DLevel; j++)
58	{
59	CRTextureLevel *tl = &(tobj->level[j]);
60	FILLDIRTY(tl->dirty);
61	}
62	break;
63	#ifdef CR_ARB_texture_cube_map
64	case GL_TEXTURE_CUBE_MAP_ARB:
65	for (j = 0; j <= fromCtx->texture.maxCubeMapLevel; j++)
66	{
67	CRTextureLevel *tl;
68	/* Positive X */
69	tl = &(tobj->level[j]);
70	FILLDIRTY(tl->dirty);
71	/* Negative X */
72	tl = &(tobj->negativeXlevel[j]);
73	FILLDIRTY(tl->dirty);
74	/* Positive Y */
75	tl = &(tobj->positiveYlevel[j]);
76	FILLDIRTY(tl->dirty);
77	/* Negative Y */
78	tl = &(tobj->negativeYlevel[j]);
79	FILLDIRTY(tl->dirty);
80	/* Positive Z */
81	tl = &(tobj->positiveZlevel[j]);
82	FILLDIRTY(tl->dirty);
83	/* Negative Z */
84	tl = &(tobj->negativeZlevel[j]);
85	FILLDIRTY(tl->dirty);
86	}
87	break;
88	#endif
89	default:
90	UNIMPLEMENTED();
91	}
92	}
93	}
94	#endif
95
96
97	void crStateTextureSwitch( CRTextureBits tb, CRbitvalue bitID,
98	CRContext fromCtx, CRContext toCtx )
99	{
100	CRTextureState *from = &(fromCtx->texture);
101	const CRTextureState *to = &(toCtx->texture);
102	unsigned int i,j;
103	glAble able[2];
104	CRbitvalue nbitID[CR_MAX_BITARRAY];
105	unsigned int activeUnit = (unsigned int) -1;
106
107	for (j=0;j<CR_MAX_BITARRAY;j++)
108	nbitID[j] = ~bitID[j];
109	able[0] = diff_api.Disable;
110	able[1] = diff_api.Enable;
111
112	for (i = 0; i < fromCtx->limits.maxTextureUnits; i++)
113	{
114	if (CHECKDIRTY(tb->enable[i], bitID))
115	{
116	if (activeUnit != i) {
117	diff_api.ActiveTextureARB( i + GL_TEXTURE0_ARB );
118	activeUnit = i;
119	}
120	if (from->unit[i].enabled1D != to->unit[i].enabled1D)
121	{
122	able[to->unit[i].enabled1D](GL_TEXTURE_1D);
123	FILLDIRTY(tb->enable[i]);
124	FILLDIRTY(tb->dirty);
125	}
126	if (from->unit[i].enabled2D != to->unit[i].enabled2D)
127	{
128	able[to->unit[i].enabled2D](GL_TEXTURE_2D);
129	FILLDIRTY(tb->enable[i]);
130	FILLDIRTY(tb->dirty);
131	}
132	#ifdef CR_OPENGL_VERSION_1_2
133	if (from->unit[i].enabled3D != to->unit[i].enabled3D)
134	{
135	able[to->unit[i].enabled3D](GL_TEXTURE_3D);
136	FILLDIRTY(tb->enable[i]);
137	FILLDIRTY(tb->dirty);
138	}
139	#endif
140	#ifdef CR_ARB_texture_cube_map
141	if (fromCtx->extensions.ARB_texture_cube_map &&
142	from->unit[i].enabledCubeMap != to->unit[i].enabledCubeMap)
143	{
144	able[to->unit[i].enabledCubeMap](GL_TEXTURE_CUBE_MAP_ARB);
145	FILLDIRTY(tb->enable[i]);
146	FILLDIRTY(tb->dirty);
147	}
148	#endif
149	#ifdef CR_NV_texture_rectangle
150	if (fromCtx->extensions.NV_texture_rectangle &&
151	from->unit[i].enabledRect != to->unit[i].enabledRect)
152	{
153	able[to->unit[i].enabledRect](GL_TEXTURE_RECTANGLE_NV);
154	FILLDIRTY(tb->enable[i]);
155	FILLDIRTY(tb->dirty);
156	}
157	#endif
158	if (from->unit[i].textureGen.s != to->unit[i].textureGen.s \|\|
159	from->unit[i].textureGen.t != to->unit[i].textureGen.t \|\|
160	from->unit[i].textureGen.r != to->unit[i].textureGen.r \|\|
161	from->unit[i].textureGen.q != to->unit[i].textureGen.q)
162	{
163	able[to->unit[i].textureGen.s](GL_TEXTURE_GEN_S);
164	able[to->unit[i].textureGen.t](GL_TEXTURE_GEN_T);
165	able[to->unit[i].textureGen.r](GL_TEXTURE_GEN_R);
166	able[to->unit[i].textureGen.q](GL_TEXTURE_GEN_Q);
167	FILLDIRTY(tb->enable[i]);
168	FILLDIRTY(tb->dirty);
169	}
170	CLEARDIRTY(tb->enable[i], nbitID);
171	}
172
173	/*
174	** A thought on switching with textures:
175	** Since we are only performing a switch
176	** and not a sync, we won't need to
177	** update individual textures, just
178	** the bindings....
179	*/
180
181	if (CHECKDIRTY(tb->current[i], bitID))
182	{
183	if (activeUnit != i) {
184	diff_api.ActiveTextureARB( i + GL_TEXTURE0_ARB );
185	activeUnit = i;
186	}
187	if (from->unit[i].currentTexture1D->hwid != to->unit[i].currentTexture1D->hwid)
188	{
189	diff_api.BindTexture(GL_TEXTURE_1D, crStateGetTextureObjHWID(to->unit[i].currentTexture1D));
190	FILLDIRTY(tb->current[i]);
191	FILLDIRTY(tb->dirty);
192	}
193	if (from->unit[i].currentTexture2D->hwid != to->unit[i].currentTexture2D->hwid)
194	{
195	diff_api.BindTexture(GL_TEXTURE_2D, crStateGetTextureObjHWID(to->unit[i].currentTexture2D));
196	FILLDIRTY(tb->current[i]);
197	FILLDIRTY(tb->dirty);
198	}
199	#ifdef CR_OPENGL_VERSION_1_2
200	if (from->unit[i].currentTexture3D->hwid != to->unit[i].currentTexture3D->hwid)
201	{
202	diff_api.BindTexture(GL_TEXTURE_3D, crStateGetTextureObjHWID(to->unit[i].currentTexture3D));
203	FILLDIRTY(tb->current[i]);
204	FILLDIRTY(tb->dirty);
205	}
206	#endif
207	#ifdef CR_ARB_texture_cube_map
208	if (fromCtx->extensions.ARB_texture_cube_map &&
209	from->unit[i].currentTextureCubeMap->hwid != to->unit[i].currentTextureCubeMap->hwid)
210	{
211	diff_api.BindTexture(GL_TEXTURE_CUBE_MAP_ARB, crStateGetTextureObjHWID(to->unit[i].currentTextureCubeMap));
212	FILLDIRTY(tb->current[i]);
213	FILLDIRTY(tb->dirty);
214	}
215	#endif
216	#ifdef CR_NV_texture_rectangle
217	if (fromCtx->extensions.NV_texture_rectangle &&
218	from->unit[i].currentTextureRect->hwid != to->unit[i].currentTextureRect->hwid)
219	{
220	diff_api.BindTexture(GL_TEXTURE_RECTANGLE_NV, crStateGetTextureObjHWID(to->unit[i].currentTextureRect));
221	FILLDIRTY(tb->current[i]);
222	FILLDIRTY(tb->dirty);
223	}
224	#endif
225	CLEARDIRTY(tb->current[i], nbitID);
226	}
227
228	if (CHECKDIRTY(tb->objGen[i], bitID))
229	{
230	if (activeUnit != i) {
231	diff_api.ActiveTextureARB( i + GL_TEXTURE0_ARB );
232	activeUnit = i;
233	}
234	if (from->unit[i].objSCoeff.x != to->unit[i].objSCoeff.x \|\|
235	from->unit[i].objSCoeff.y != to->unit[i].objSCoeff.y \|\|
236	from->unit[i].objSCoeff.z != to->unit[i].objSCoeff.z \|\|
237	from->unit[i].objSCoeff.w != to->unit[i].objSCoeff.w)
238	{
239	GLfloat f[4];
240	f[0] = to->unit[i].objSCoeff.x;
241	f[1] = to->unit[i].objSCoeff.y;
242	f[2] = to->unit[i].objSCoeff.z;
243	f[3] = to->unit[i].objSCoeff.w;
244	diff_api.TexGenfv (GL_S, GL_OBJECT_PLANE, (const GLfloat *) f);
245	FILLDIRTY(tb->objGen[i]);
246	FILLDIRTY(tb->dirty);
247	}
248	if (from->unit[i].objTCoeff.x != to->unit[i].objTCoeff.x \|\|
249	from->unit[i].objTCoeff.y != to->unit[i].objTCoeff.y \|\|
250	from->unit[i].objTCoeff.z != to->unit[i].objTCoeff.z \|\|
251	from->unit[i].objTCoeff.w != to->unit[i].objTCoeff.w) {
252	GLfloat f[4];
253	f[0] = to->unit[i].objTCoeff.x;
254	f[1] = to->unit[i].objTCoeff.y;
255	f[2] = to->unit[i].objTCoeff.z;
256	f[3] = to->unit[i].objTCoeff.w;
257	diff_api.TexGenfv (GL_T, GL_OBJECT_PLANE, (const GLfloat *) f);
258	FILLDIRTY(tb->objGen[i]);
259	FILLDIRTY(tb->dirty);
260	}
261	if (from->unit[i].objRCoeff.x != to->unit[i].objRCoeff.x \|\|
262	from->unit[i].objRCoeff.y != to->unit[i].objRCoeff.y \|\|
263	from->unit[i].objRCoeff.z != to->unit[i].objRCoeff.z \|\|
264	from->unit[i].objRCoeff.w != to->unit[i].objRCoeff.w) {
265	GLfloat f[4];
266	f[0] = to->unit[i].objRCoeff.x;
267	f[1] = to->unit[i].objRCoeff.y;
268	f[2] = to->unit[i].objRCoeff.z;
269	f[3] = to->unit[i].objRCoeff.w;
270	diff_api.TexGenfv (GL_R, GL_OBJECT_PLANE, (const GLfloat *) f);
271	FILLDIRTY(tb->objGen[i]);
272	FILLDIRTY(tb->dirty);
273	}
274	if (from->unit[i].objQCoeff.x != to->unit[i].objQCoeff.x \|\|
275	from->unit[i].objQCoeff.y != to->unit[i].objQCoeff.y \|\|
276	from->unit[i].objQCoeff.z != to->unit[i].objQCoeff.z \|\|
277	from->unit[i].objQCoeff.w != to->unit[i].objQCoeff.w) {
278	GLfloat f[4];
279	f[0] = to->unit[i].objQCoeff.x;
280	f[1] = to->unit[i].objQCoeff.y;
281	f[2] = to->unit[i].objQCoeff.z;
282	f[3] = to->unit[i].objQCoeff.w;
283	diff_api.TexGenfv (GL_Q, GL_OBJECT_PLANE, (const GLfloat *) f);
284	FILLDIRTY(tb->objGen[i]);
285	FILLDIRTY(tb->dirty);
286	}
287	CLEARDIRTY(tb->objGen[i], nbitID);
288	}
289	if (CHECKDIRTY(tb->eyeGen[i], bitID))
290	{
291	if (activeUnit != i) {
292	diff_api.ActiveTextureARB( i + GL_TEXTURE0_ARB );
293	activeUnit = i;
294	}
295	diff_api.MatrixMode(GL_MODELVIEW);
296	diff_api.PushMatrix();
297	diff_api.LoadIdentity();
298	if (from->unit[i].eyeSCoeff.x != to->unit[i].eyeSCoeff.x \|\|
299	from->unit[i].eyeSCoeff.y != to->unit[i].eyeSCoeff.y \|\|
300	from->unit[i].eyeSCoeff.z != to->unit[i].eyeSCoeff.z \|\|
301	from->unit[i].eyeSCoeff.w != to->unit[i].eyeSCoeff.w) {
302	GLfloat f[4];
303	f[0] = to->unit[i].eyeSCoeff.x;
304	f[1] = to->unit[i].eyeSCoeff.y;
305	f[2] = to->unit[i].eyeSCoeff.z;
306	f[3] = to->unit[i].eyeSCoeff.w;
307	diff_api.TexGenfv (GL_S, GL_EYE_PLANE, (const GLfloat *) f);
308	FILLDIRTY(tb->eyeGen[i]);
309	FILLDIRTY(tb->dirty);
310	}
311	if (from->unit[i].eyeTCoeff.x != to->unit[i].eyeTCoeff.x \|\|
312	from->unit[i].eyeTCoeff.y != to->unit[i].eyeTCoeff.y \|\|
313	from->unit[i].eyeTCoeff.z != to->unit[i].eyeTCoeff.z \|\|
314	from->unit[i].eyeTCoeff.w != to->unit[i].eyeTCoeff.w) {
315	GLfloat f[4];
316	f[0] = to->unit[i].eyeTCoeff.x;
317	f[1] = to->unit[i].eyeTCoeff.y;
318	f[2] = to->unit[i].eyeTCoeff.z;
319	f[3] = to->unit[i].eyeTCoeff.w;
320	diff_api.TexGenfv (GL_T, GL_EYE_PLANE, (const GLfloat *) f);
321	FILLDIRTY(tb->eyeGen[i]);
322	FILLDIRTY(tb->dirty);
323	}
324	if (from->unit[i].eyeRCoeff.x != to->unit[i].eyeRCoeff.x \|\|
325	from->unit[i].eyeRCoeff.y != to->unit[i].eyeRCoeff.y \|\|
326	from->unit[i].eyeRCoeff.z != to->unit[i].eyeRCoeff.z \|\|
327	from->unit[i].eyeRCoeff.w != to->unit[i].eyeRCoeff.w) {
328	GLfloat f[4];
329	f[0] = to->unit[i].eyeRCoeff.x;
330	f[1] = to->unit[i].eyeRCoeff.y;
331	f[2] = to->unit[i].eyeRCoeff.z;
332	f[3] = to->unit[i].eyeRCoeff.w;
333	diff_api.TexGenfv (GL_R, GL_EYE_PLANE, (const GLfloat *) f);
334	FILLDIRTY(tb->eyeGen[i]);
335	FILLDIRTY(tb->dirty);
336	}
337	if (from->unit[i].eyeQCoeff.x != to->unit[i].eyeQCoeff.x \|\|
338	from->unit[i].eyeQCoeff.y != to->unit[i].eyeQCoeff.y \|\|
339	from->unit[i].eyeQCoeff.z != to->unit[i].eyeQCoeff.z \|\|
340	from->unit[i].eyeQCoeff.w != to->unit[i].eyeQCoeff.w) {
341	GLfloat f[4];
342	f[0] = to->unit[i].eyeQCoeff.x;
343	f[1] = to->unit[i].eyeQCoeff.y;
344	f[2] = to->unit[i].eyeQCoeff.z;
345	f[3] = to->unit[i].eyeQCoeff.w;
346	diff_api.TexGenfv (GL_Q, GL_EYE_PLANE, (const GLfloat *) f);
347	FILLDIRTY(tb->eyeGen[i]);
348	FILLDIRTY(tb->dirty);
349	}
350	diff_api.PopMatrix();
351	CLEARDIRTY(tb->eyeGen[i], nbitID);
352	}
353	if (CHECKDIRTY(tb->genMode[i], bitID))
354	{
355	if (activeUnit != i) {
356	diff_api.ActiveTextureARB( i + GL_TEXTURE0_ARB );
357	activeUnit = i;
358	}
359	if (from->unit[i].gen.s != to->unit[i].gen.s \|\|
360	from->unit[i].gen.t != to->unit[i].gen.t \|\|
361	from->unit[i].gen.r != to->unit[i].gen.r \|\|
362	from->unit[i].gen.q != to->unit[i].gen.q)
363	{
364	diff_api.TexGeni (GL_S, GL_TEXTURE_GEN_MODE, to->unit[i].gen.s);
365	diff_api.TexGeni (GL_T, GL_TEXTURE_GEN_MODE, to->unit[i].gen.t);
366	diff_api.TexGeni (GL_R, GL_TEXTURE_GEN_MODE, to->unit[i].gen.r);
367	diff_api.TexGeni (GL_Q, GL_TEXTURE_GEN_MODE, to->unit[i].gen.q);
368	FILLDIRTY(tb->genMode[i]);
369	FILLDIRTY(tb->dirty);
370	}
371	CLEARDIRTY(tb->genMode[i], nbitID);
372	}
373	CLEARDIRTY(tb->dirty, nbitID);
374
375	/* Texture enviroment */
376	if (CHECKDIRTY(tb->envBit[i], bitID))
377	{
378	if (activeUnit != i) {
379	diff_api.ActiveTextureARB( i + GL_TEXTURE0_ARB );
380	activeUnit = i;
381	}
382	if (from->unit[i].envMode != to->unit[i].envMode)
383	{
384	diff_api.TexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, to->unit[i].envMode);
385	FILLDIRTY(tb->envBit[i]);
386	FILLDIRTY(tb->dirty);
387	}
388	if (from->unit[i].envColor.r != to->unit[i].envColor.r \|\|
389	from->unit[i].envColor.g != to->unit[i].envColor.g \|\|
390	from->unit[i].envColor.b != to->unit[i].envColor.b \|\|
391	from->unit[i].envColor.a != to->unit[i].envColor.a)
392	{
393	GLfloat f[4];
394	f[0] = to->unit[i].envColor.r;
395	f[1] = to->unit[i].envColor.g;
396	f[2] = to->unit[i].envColor.b;
397	f[3] = to->unit[i].envColor.a;
398	diff_api.TexEnvfv (GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, (const GLfloat *) f);
399	FILLDIRTY(tb->envBit[i]);
400	FILLDIRTY(tb->dirty);
401	}
402	if (from->unit[i].combineModeRGB != to->unit[i].combineModeRGB)
403	{
404	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, to->unit[i].combineModeRGB);
405	FILLDIRTY(tb->envBit[i]);
406	FILLDIRTY(tb->dirty);
407	}
408	if (from->unit[i].combineModeA != to->unit[i].combineModeA)
409	{
410	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, to->unit[i].combineModeA);
411	FILLDIRTY(tb->envBit[i]);
412	FILLDIRTY(tb->dirty);
413	}
414	if (from->unit[i].combineSourceRGB[0] != to->unit[i].combineSourceRGB[0])
415	{
416	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, to->unit[i].combineSourceRGB[0]);
417	FILLDIRTY(tb->envBit[i]);
418	FILLDIRTY(tb->dirty);
419	}
420	if (from->unit[i].combineSourceRGB[1] != to->unit[i].combineSourceRGB[1])
421	{
422	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, to->unit[i].combineSourceRGB[1]);
423	FILLDIRTY(tb->envBit[i]);
424	FILLDIRTY(tb->dirty);
425	}
426	if (from->unit[i].combineSourceRGB[2] != to->unit[i].combineSourceRGB[2])
427	{
428	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, to->unit[i].combineSourceRGB[2]);
429	FILLDIRTY(tb->envBit[i]);
430	FILLDIRTY(tb->dirty);
431	}
432	if (from->unit[i].combineSourceA[0] != to->unit[i].combineSourceA[0])
433	{
434	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, to->unit[i].combineSourceA[0]);
435	FILLDIRTY(tb->envBit[i]);
436	FILLDIRTY(tb->dirty);
437	}
438	if (from->unit[i].combineSourceA[1] != to->unit[i].combineSourceA[1])
439	{
440	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, to->unit[i].combineSourceA[1]);
441	FILLDIRTY(tb->envBit[i]);
442	FILLDIRTY(tb->dirty);
443	}
444	if (from->unit[i].combineSourceA[2] != to->unit[i].combineSourceA[2])
445	{
446	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_ARB, to->unit[i].combineSourceA[2]);
447	FILLDIRTY(tb->envBit[i]);
448	FILLDIRTY(tb->dirty);
449	}
450	if (from->unit[i].combineOperandRGB[0] != to->unit[i].combineOperandRGB[0])
451	{
452	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, to->unit[i].combineOperandRGB[0]);
453	FILLDIRTY(tb->envBit[i]);
454	FILLDIRTY(tb->dirty);
455	}
456	if (from->unit[i].combineOperandRGB[1] != to->unit[i].combineOperandRGB[1])
457	{
458	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, to->unit[i].combineOperandRGB[1]);
459	FILLDIRTY(tb->envBit[i]);
460	FILLDIRTY(tb->dirty);
461	}
462	if (from->unit[i].combineOperandRGB[2] != to->unit[i].combineOperandRGB[2])
463	{
464	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, to->unit[i].combineOperandRGB[2]);
465	FILLDIRTY(tb->envBit[i]);
466	FILLDIRTY(tb->dirty);
467	}
468	if (from->unit[i].combineOperandA[0] != to->unit[i].combineOperandA[0])
469	{
470	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, to->unit[i].combineOperandA[0]);
471	FILLDIRTY(tb->envBit[i]);
472	FILLDIRTY(tb->dirty);
473	}
474	if (from->unit[i].combineOperandA[1] != to->unit[i].combineOperandA[1])
475	{
476	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, to->unit[i].combineOperandA[1]);
477	FILLDIRTY(tb->envBit[i]);
478	FILLDIRTY(tb->dirty);
479	}
480	if (from->unit[i].combineOperandA[2] != to->unit[i].combineOperandA[2])
481	{
482	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_ARB, to->unit[i].combineOperandA[2]);
483	FILLDIRTY(tb->envBit[i]);
484	FILLDIRTY(tb->dirty);
485	}
486	if (from->unit[i].combineScaleRGB != to->unit[i].combineScaleRGB)
487	{
488	diff_api.TexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, to->unit[i].combineScaleRGB);
489	FILLDIRTY(tb->envBit[i]);
490	FILLDIRTY(tb->dirty);
491	}
492	if (from->unit[i].combineScaleA != to->unit[i].combineScaleA)
493	{
494	diff_api.TexEnvf(GL_TEXTURE_ENV, GL_ALPHA_SCALE, to->unit[i].combineScaleA);
495	FILLDIRTY(tb->envBit[i]);
496	FILLDIRTY(tb->dirty);
497	}
498	CLEARDIRTY(tb->envBit[i], nbitID);
499	}
500	}
501
502	/* Resend texture images */
503	if (toCtx->shared->bTexResyncNeeded)
504	{
505	toCtx->shared->bTexResyncNeeded = GL_FALSE;
506
507	crStateDiffAllTextureObjects(toCtx, bitID, GL_TRUE);
508	}
509
510	/* After possible fiddling put them back now */
511	if (activeUnit != toCtx->texture.curTextureUnit) {
512	diff_api.ActiveTextureARB( toCtx->texture.curTextureUnit + GL_TEXTURE0_ARB );
513	}
514	diff_api.MatrixMode(toCtx->transform.matrixMode);
515	}
516
517
518	/*
519	* Check the dirty bits for the specified texture on a given unit to
520	* determine if any of its images are dirty.
521	* Return: 1 -- dirty, 0 -- clean
522	*/
523	int crStateTextureCheckDirtyImages(CRContext from, CRContext to, GLenum target, int textureUnit)
524	{
525	CRContext *g = GetCurrentContext();
526	CRTextureState *tsto;
527	CRbitvalue *bitID;
528	CRTextureObj *tobj = NULL;
529	int maxLevel = 0, i;
530	int face, numFaces;
531
532	CRASSERT(to);
533	CRASSERT(from);
534
535	tsto = &(to->texture);
536	bitID = from->bitid;
537
538	CRASSERT(tsto);
539
540	switch(target)
541	{
542	case GL_TEXTURE_1D:
543	tobj = tsto->unit[textureUnit].currentTexture1D;
544	maxLevel = tsto->maxLevel;
545	break;
546	case GL_TEXTURE_2D:
547	tobj = tsto->unit[textureUnit].currentTexture2D;
548	maxLevel = tsto->maxLevel;
549	break;
550	#ifdef CR_OPENGL_VERSION_1_2
551	case GL_TEXTURE_3D:
552	tobj = tsto->unit[textureUnit].currentTexture3D;
553	maxLevel = tsto->max3DLevel;
554	break;
555	#endif
556	#ifdef CR_ARB_texture_cube_map
557	case GL_TEXTURE_CUBE_MAP:
558	if (g->extensions.ARB_texture_cube_map) {
559	tobj = tsto->unit[textureUnit].currentTextureCubeMap;
560	maxLevel = tsto->maxCubeMapLevel;
561	}
562	break;
563	#endif
564	#ifdef CR_NV_texture_rectangle
565	case GL_TEXTURE_RECTANGLE_NV:
566	if (g->extensions.NV_texture_rectangle) {
567	tobj = tsto->unit[textureUnit].currentTextureRect;
568	maxLevel = 1;
569	}
570	break;
571	#endif
572	default:
573	crError("Bad texture target in crStateTextureCheckDirtyImages()");
574	return 0;
575	}
576
577	if (!tobj)
578	{
579	return 0;
580	}
581
582	numFaces = (target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
583
584	for (face = 0; face < numFaces; face++) {
585	for (i = 0; i < maxLevel; i++) {
586	if (CHECKDIRTY(tobj->level[face][i].dirty, bitID))
587	return 1;
588	}
589	}
590
591	return 0;
592	}
593
594
595	/*
596	* Do texture state differencing for the given texture object.
597	*/
598	void
599	crStateTextureObjectDiff(CRContext *fromCtx,
600	const CRbitvalue bitID, const CRbitvalue nbitID,
601	CRTextureObj *tobj, GLboolean alwaysDirty)
602	{
603	CRTextureState *from = &(fromCtx->texture);
604	glAble able[2];
605	int u = 0; /* always use texture unit 0 for diff'ing */
606
607	able[0] = diff_api.Disable;
608	able[1] = diff_api.Enable;
609
610	#if 0
611	/* XXX disabling this code fixed Wes Bethel's problem with missing/white
612	* textures. Setting the active texture unit here can screw up the
613	* current texture object bindings.
614	*/
615	/* Set active texture unit, and bind this texture object */
616	if (from->curTextureUnit != u) {
617	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
618	from->curTextureUnit = u;
619	}
620	#endif
621
622	diff_api.BindTexture(tobj->target, crStateGetTextureObjHWID(tobj));
623
624	if (alwaysDirty \|\| CHECKDIRTY(tobj->paramsBit[u], bitID))
625	{
626	GLfloat f[4];
627	f[0] = tobj->borderColor.r;
628	f[1] = tobj->borderColor.g;
629	f[2] = tobj->borderColor.b;
630	f[3] = tobj->borderColor.a;
631	diff_api.TexParameteri(tobj->target, GL_TEXTURE_BASE_LEVEL, tobj->baseLevel);
632	diff_api.TexParameteri(tobj->target, GL_TEXTURE_MAX_LEVEL, tobj->maxLevel);
633	diff_api.TexParameteri(tobj->target, GL_TEXTURE_MIN_FILTER, tobj->minFilter);
634	diff_api.TexParameteri(tobj->target, GL_TEXTURE_MAG_FILTER, tobj->magFilter);
635	diff_api.TexParameteri(tobj->target, GL_TEXTURE_WRAP_S, tobj->wrapS);
636	diff_api.TexParameteri(tobj->target, GL_TEXTURE_WRAP_T, tobj->wrapT);
637	#ifdef CR_OPENGL_VERSION_1_2
638	diff_api.TexParameteri(tobj->target, GL_TEXTURE_WRAP_R, tobj->wrapR);
639	diff_api.TexParameterf(tobj->target, GL_TEXTURE_PRIORITY, tobj->priority);
640	#endif
641	diff_api.TexParameterfv(tobj->target, GL_TEXTURE_BORDER_COLOR, (const GLfloat *) f);
642	#ifdef CR_EXT_texture_filter_anisotropic
643	if (fromCtx->extensions.EXT_texture_filter_anisotropic) {
644	diff_api.TexParameterf(tobj->target, GL_TEXTURE_MAX_ANISOTROPY_EXT, tobj->maxAnisotropy);
645	}
646	#endif
647	#ifdef CR_ARB_depth_texture
648	if (fromCtx->extensions.ARB_depth_texture)
649	diff_api.TexParameteri(tobj->target, GL_DEPTH_TEXTURE_MODE_ARB, tobj->depthMode);
650	#endif
651	#ifdef CR_ARB_shadow
652	if (fromCtx->extensions.ARB_shadow) {
653	diff_api.TexParameteri(tobj->target, GL_TEXTURE_COMPARE_MODE_ARB, tobj->compareMode);
654	diff_api.TexParameteri(tobj->target, GL_TEXTURE_COMPARE_FUNC_ARB, tobj->compareFunc);
655	}
656	#endif
657	#ifdef CR_ARB_shadow_ambient
658	if (fromCtx->extensions.ARB_shadow_ambient) {
659	diff_api.TexParameterf(tobj->target, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, tobj->compareFailValue);
660	}
661	#endif
662	#ifdef CR_SGIS_generate_mipmap
663	if (fromCtx->extensions.SGIS_generate_mipmap) {
664	diff_api.TexParameteri(tobj->target, GL_GENERATE_MIPMAP_SGIS, tobj->generateMipmap);
665	}
666	#endif
667	if (!alwaysDirty)
668	CLEARDIRTY(tobj->paramsBit[u], nbitID);
669	}
670
671	/* now, if the texture images are dirty */
672	if (alwaysDirty \|\| CHECKDIRTY(tobj->imageBit, bitID))
673	{
674	int lvl;
675	int face;
676
677	switch (tobj->target)
678	{
679	case GL_TEXTURE_1D:
680	for (lvl = 0; lvl <= from->maxLevel; lvl++)
681	{
682	CRTextureLevel *tl = &(tobj->level[0][lvl]);
683	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
684	{
685	if (tl->generateMipmap) {
686	diff_api.TexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, 1);
687	}
688	if (tl->width)
689	{
690	if (tl->compressed) {
691	diff_api.CompressedTexImage1DARB(GL_TEXTURE_1D, lvl,
692	tl->internalFormat, tl->width,
693	tl->border, tl->bytes, tl->img);
694	}
695	else {
696	/* alignment must be one */
697	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
698	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
699	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
700	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
701	if (tl->generateMipmap) {
702	diff_api.TexParameteri(GL_TEXTURE_1D, GL_GENERATE_MIPMAP_SGIS, 1);
703	}
704	diff_api.TexImage1D(GL_TEXTURE_1D, lvl,
705	tl->internalFormat,
706	tl->width, tl->border,
707	tl->format, tl->type, tl->img);
708	}
709	}
710	if (!alwaysDirty)
711	{
712	CLEARDIRTY(tl->dirty, nbitID);
713	}
714	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
715	else
716	{
717	crFree(tl->img);
718	tl->img = NULL;
719	}
720	#endif
721	}
722	}
723	break;
724	case GL_TEXTURE_2D:
725	for (lvl = 0; lvl <= from->maxLevel; lvl++)
726	{
727	CRTextureLevel *tl = &(tobj->level[0][lvl]);
728	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
729	{
730	if (tl->generateMipmap) {
731	diff_api.TexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, 1);
732	}
733
734	if (tl->width && tl->height)
735	{
736	if (tl->compressed) {
737	diff_api.CompressedTexImage2DARB(GL_TEXTURE_2D, lvl,
738	tl->internalFormat, tl->width,
739	tl->height, tl->border,
740	tl->bytes, tl->img);
741	}
742	else {
743	/* alignment must be one */
744	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
745	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
746	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
747	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
748	diff_api.TexImage2D(GL_TEXTURE_2D, lvl,
749	tl->internalFormat,
750	tl->width, tl->height, tl->border,
751	tl->format, tl->type, tl->img);
752	}
753	}
754
755	if (!alwaysDirty)
756	{
757	CLEARDIRTY(tl->dirty, nbitID);
758	}
759	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
760	else
761	{
762	crFree(tl->img);
763	tl->img = NULL;
764	}
765	#endif
766	}
767	}
768	break;
769	#ifdef CR_OPENGL_VERSION_1_2
770	case GL_TEXTURE_3D:
771	for (lvl = 0; lvl <= from->max3DLevel; lvl++)
772	{
773	CRTextureLevel *tl = &(tobj->level[0][lvl]);
774	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
775	{
776	if (tl->generateMipmap) {
777	diff_api.TexParameteri(GL_TEXTURE_3D, GL_GENERATE_MIPMAP_SGIS, 1);
778	}
779
780	if (tl->width && tl->height)
781	{
782	if (tl->compressed) {
783	diff_api.CompressedTexImage3DARB(GL_TEXTURE_3D, lvl,
784	tl->internalFormat, tl->width,
785	tl->height, tl->depth,
786	tl->border, tl->bytes, tl->img);
787	}
788	else {
789	/* alignment must be one */
790	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
791	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
792	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
793	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
794	diff_api.TexImage3D(GL_TEXTURE_3D, lvl,
795	tl->internalFormat,
796	tl->width, tl->height, tl->depth,
797	tl->border, tl->format,
798	tl->type, tl->img);
799	}
800	}
801
802	if (!alwaysDirty)
803	{
804	CLEARDIRTY(tl->dirty, nbitID);
805	}
806	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
807	else
808	{
809	crFree(tl->img);
810	tl->img = NULL;
811	}
812	#endif
813	}
814	}
815	break;
816	#endif
817	#ifdef CR_NV_texture_rectangle
818	case GL_TEXTURE_RECTANGLE_NV:
819	/* only one level */
820	for (lvl = 0; lvl <= from->maxRectLevel; lvl++)
821	{
822	CRTextureLevel *tl = &(tobj->level[0][lvl]);
823	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
824	{
825	if (tl->width && tl->height)
826	{
827	if (tl->compressed) {
828	diff_api.CompressedTexImage2DARB(GL_TEXTURE_RECTANGLE_NV, lvl,
829	tl->internalFormat, tl->width,
830	tl->height, tl->border,
831	tl->bytes, tl->img);
832	}
833	else {
834	/* alignment must be one */
835	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
836	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
837	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
838	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
839	diff_api.TexImage2D(GL_TEXTURE_RECTANGLE_NV, lvl,
840	tl->internalFormat,
841	tl->width, tl->height, tl->border,
842	tl->format, tl->type, tl->img);
843	}
844	}
845
846	if (!alwaysDirty)
847	{
848	CLEARDIRTY(tl->dirty, nbitID);
849	}
850	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
851	else
852	{
853	crFree(tl->img);
854	tl->img = NULL;
855	}
856	#endif
857	}
858	}
859	break;
860	#endif
861	#ifdef CR_ARB_texture_cube_map
862	case GL_TEXTURE_CUBE_MAP_ARB:
863	for (face = 0; face < 6; face++)
864	{
865	const GLenum target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + face;
866	for (lvl = 0; lvl <= from->maxCubeMapLevel; lvl++)
867	{
868	CRTextureLevel *tl = &(tobj->level[face][lvl]);
869	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
870	{
871	if (tl->generateMipmap) {
872	diff_api.TexParameteri(GL_TEXTURE_CUBE_MAP_ARB,
873	GL_GENERATE_MIPMAP_SGIS, 1);
874	}
875
876	if (tl->width && tl->height)
877	{
878	if (tl->compressed) {
879	diff_api.CompressedTexImage2DARB(target,
880	lvl, tl->internalFormat,
881	tl->width, tl->height,
882	tl->border, tl->bytes, tl->img);
883	}
884	else {
885	/* alignment must be one */
886	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
887	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
888	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
889	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
890	diff_api.TexImage2D(target, lvl,
891	tl->internalFormat,
892	tl->width, tl->height, tl->border,
893	tl->format, tl->type, tl->img);
894	}
895	}
896
897	if (!alwaysDirty)
898	{
899	CLEARDIRTY(tl->dirty, nbitID);
900	}
901	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
902	else
903	{
904	crFree(tl->img);
905	tl->img = NULL;
906	}
907	#endif
908	}
909	} /* for lvl */
910	} /* for face */
911	break;
912	#endif
913	default:
914	UNIMPLEMENTED();
915
916	} /* switch */
917	} /* if (CHECKDIRTY(tobj->imageBit, bitID)) */
918	}
919
920
921
922	void
923	crStateTextureDiff( CRTextureBits tb, CRbitvalue bitID,
924	CRContext fromCtx, CRContext toCtx )
925	{
926	CRTextureState *from = &(fromCtx->texture);
927	CRTextureState *to = &(toCtx->texture);
928	unsigned int u, t, j;
929	glAble able[2];
930	CRbitvalue nbitID[CR_MAX_BITARRAY];
931	const GLboolean haveFragProg = fromCtx->extensions.ARB_fragment_program \|\| fromCtx->extensions.NV_fragment_program;
932
933	for (j=0;j<CR_MAX_BITARRAY;j++)
934	nbitID[j] = ~bitID[j];
935
936	able[0] = diff_api.Disable;
937	able[1] = diff_api.Enable;
938
939	/* loop over texture units */
940	for (u = 0; u < fromCtx->limits.maxTextureUnits; u++)
941	{
942	CRTextureObj **fromBinding = NULL;
943	CRTextureObj *tobj;
944
945	/* take care of enables/disables */
946	if (CHECKDIRTY(tb->enable[u], bitID))
947	{
948
949	/* Activate texture unit u if needed */
950	if (fromCtx->texture.curTextureUnit != u) {
951	diff_api.ActiveTextureARB( GL_TEXTURE0_ARB + u);
952	fromCtx->texture.curTextureUnit = u;
953	}
954
955	if (from->unit[u].enabled1D != to->unit[u].enabled1D)
956	{
957	able[to->unit[u].enabled1D](GL_TEXTURE_1D);
958	from->unit[u].enabled1D = to->unit[u].enabled1D;
959	}
960	if (from->unit[u].enabled2D != to->unit[u].enabled2D)
961	{
962	able[to->unit[u].enabled2D](GL_TEXTURE_2D);
963	from->unit[u].enabled2D = to->unit[u].enabled2D;
964	}
965	#ifdef CR_OPENGL_VERSION_1_2
966	if (from->unit[u].enabled3D != to->unit[u].enabled3D)
967	{
968	able[to->unit[u].enabled3D](GL_TEXTURE_3D);
969	from->unit[u].enabled3D = to->unit[u].enabled3D;
970	}
971	#endif
972	#ifdef CR_ARB_texture_cube_map
973	if (fromCtx->extensions.ARB_texture_cube_map &&
974	from->unit[u].enabledCubeMap != to->unit[u].enabledCubeMap)
975	{
976	able[to->unit[u].enabledCubeMap](GL_TEXTURE_CUBE_MAP_ARB);
977	from->unit[u].enabledCubeMap = to->unit[u].enabledCubeMap;
978	}
979	#endif
980	#ifdef CR_NV_texture_rectangle
981	if (fromCtx->extensions.NV_texture_rectangle &&
982	from->unit[u].enabledRect != to->unit[u].enabledRect)
983	{
984	able[to->unit[u].enabledRect](GL_TEXTURE_RECTANGLE_NV);
985	from->unit[u].enabledRect = to->unit[u].enabledRect;
986	}
987	#endif
988
989	/* texgen enables */
990	if (from->unit[u].textureGen.s != to->unit[u].textureGen.s \|\|
991	from->unit[u].textureGen.t != to->unit[u].textureGen.t \|\|
992	from->unit[u].textureGen.r != to->unit[u].textureGen.r \|\|
993	from->unit[u].textureGen.q != to->unit[u].textureGen.q)
994	{
995	able[to->unit[u].textureGen.s](GL_TEXTURE_GEN_S);
996	able[to->unit[u].textureGen.t](GL_TEXTURE_GEN_T);
997	able[to->unit[u].textureGen.r](GL_TEXTURE_GEN_R);
998	able[to->unit[u].textureGen.q](GL_TEXTURE_GEN_Q);
999	from->unit[u].textureGen = to->unit[u].textureGen;
1000	}
1001	CLEARDIRTY(tb->enable[u], nbitID);
1002	}
1003
1004
1005	/* Texgen coefficients */
1006	if (CHECKDIRTY(tb->objGen[u], bitID))
1007	{
1008	if (fromCtx->texture.curTextureUnit != u) {
1009	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
1010	fromCtx->texture.curTextureUnit = u;
1011	}
1012	if (from->unit[u].objSCoeff.x != to->unit[u].objSCoeff.x \|\|
1013	from->unit[u].objSCoeff.y != to->unit[u].objSCoeff.y \|\|
1014	from->unit[u].objSCoeff.z != to->unit[u].objSCoeff.z \|\|
1015	from->unit[u].objSCoeff.w != to->unit[u].objSCoeff.w)
1016	{
1017	GLfloat f[4];
1018	f[0] = to->unit[u].objSCoeff.x;
1019	f[1] = to->unit[u].objSCoeff.y;
1020	f[2] = to->unit[u].objSCoeff.z;
1021	f[3] = to->unit[u].objSCoeff.w;
1022	diff_api.TexGenfv (GL_S, GL_OBJECT_PLANE, (const GLfloat *) f);
1023	from->unit[u].objSCoeff = to->unit[u].objSCoeff;
1024	}
1025	if (from->unit[u].objTCoeff.x != to->unit[u].objTCoeff.x \|\|
1026	from->unit[u].objTCoeff.y != to->unit[u].objTCoeff.y \|\|
1027	from->unit[u].objTCoeff.z != to->unit[u].objTCoeff.z \|\|
1028	from->unit[u].objTCoeff.w != to->unit[u].objTCoeff.w)
1029	{
1030	GLfloat f[4];
1031	f[0] = to->unit[u].objTCoeff.x;
1032	f[1] = to->unit[u].objTCoeff.y;
1033	f[2] = to->unit[u].objTCoeff.z;
1034	f[3] = to->unit[u].objTCoeff.w;
1035	diff_api.TexGenfv (GL_T, GL_OBJECT_PLANE, (const GLfloat *) f);
1036	from->unit[u].objTCoeff = to->unit[u].objTCoeff;
1037	}
1038	if (from->unit[u].objRCoeff.x != to->unit[u].objRCoeff.x \|\|
1039	from->unit[u].objRCoeff.y != to->unit[u].objRCoeff.y \|\|
1040	from->unit[u].objRCoeff.z != to->unit[u].objRCoeff.z \|\|
1041	from->unit[u].objRCoeff.w != to->unit[u].objRCoeff.w)
1042	{
1043	GLfloat f[4];
1044	f[0] = to->unit[u].objRCoeff.x;
1045	f[1] = to->unit[u].objRCoeff.y;
1046	f[2] = to->unit[u].objRCoeff.z;
1047	f[3] = to->unit[u].objRCoeff.w;
1048	diff_api.TexGenfv (GL_R, GL_OBJECT_PLANE, (const GLfloat *) f);
1049	from->unit[u].objRCoeff = to->unit[u].objRCoeff;
1050	}
1051	if (from->unit[u].objQCoeff.x != to->unit[u].objQCoeff.x \|\|
1052	from->unit[u].objQCoeff.y != to->unit[u].objQCoeff.y \|\|
1053	from->unit[u].objQCoeff.z != to->unit[u].objQCoeff.z \|\|
1054	from->unit[u].objQCoeff.w != to->unit[u].objQCoeff.w)
1055	{
1056	GLfloat f[4];
1057	f[0] = to->unit[u].objQCoeff.x;
1058	f[1] = to->unit[u].objQCoeff.y;
1059	f[2] = to->unit[u].objQCoeff.z;
1060	f[3] = to->unit[u].objQCoeff.w;
1061	diff_api.TexGenfv (GL_Q, GL_OBJECT_PLANE, (const GLfloat *) f);
1062	from->unit[u].objQCoeff = to->unit[u].objQCoeff;
1063	}
1064	CLEARDIRTY(tb->objGen[u], nbitID);
1065	}
1066	if (CHECKDIRTY(tb->eyeGen[u], bitID))
1067	{
1068	if (fromCtx->texture.curTextureUnit != u) {
1069	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
1070	fromCtx->texture.curTextureUnit = u;
1071	}
1072	if (fromCtx->transform.matrixMode != GL_MODELVIEW) {
1073	diff_api.MatrixMode(GL_MODELVIEW);
1074	fromCtx->transform.matrixMode = GL_MODELVIEW;
1075	}
1076	diff_api.PushMatrix();
1077	diff_api.LoadIdentity();
1078	if (from->unit[u].eyeSCoeff.x != to->unit[u].eyeSCoeff.x \|\|
1079	from->unit[u].eyeSCoeff.y != to->unit[u].eyeSCoeff.y \|\|
1080	from->unit[u].eyeSCoeff.z != to->unit[u].eyeSCoeff.z \|\|
1081	from->unit[u].eyeSCoeff.w != to->unit[u].eyeSCoeff.w)
1082	{
1083	GLfloat f[4];
1084	f[0] = to->unit[u].eyeSCoeff.x;
1085	f[1] = to->unit[u].eyeSCoeff.y;
1086	f[2] = to->unit[u].eyeSCoeff.z;
1087	f[3] = to->unit[u].eyeSCoeff.w;
1088	diff_api.TexGenfv (GL_S, GL_EYE_PLANE, (const GLfloat *) f);
1089	from->unit[u].eyeSCoeff = to->unit[u].eyeSCoeff;
1090	}
1091	if (from->unit[u].eyeTCoeff.x != to->unit[u].eyeTCoeff.x \|\|
1092	from->unit[u].eyeTCoeff.y != to->unit[u].eyeTCoeff.y \|\|
1093	from->unit[u].eyeTCoeff.z != to->unit[u].eyeTCoeff.z \|\|
1094	from->unit[u].eyeTCoeff.w != to->unit[u].eyeTCoeff.w)
1095	{
1096	GLfloat f[4];
1097	f[0] = to->unit[u].eyeTCoeff.x;
1098	f[1] = to->unit[u].eyeTCoeff.y;
1099	f[2] = to->unit[u].eyeTCoeff.z;
1100	f[3] = to->unit[u].eyeTCoeff.w;
1101	diff_api.TexGenfv (GL_T, GL_EYE_PLANE, (const GLfloat *) f);
1102	from->unit[u].eyeTCoeff = to->unit[u].eyeTCoeff;
1103	}
1104	if (from->unit[u].eyeRCoeff.x != to->unit[u].eyeRCoeff.x \|\|
1105	from->unit[u].eyeRCoeff.y != to->unit[u].eyeRCoeff.y \|\|
1106	from->unit[u].eyeRCoeff.z != to->unit[u].eyeRCoeff.z \|\|
1107	from->unit[u].eyeRCoeff.w != to->unit[u].eyeRCoeff.w)
1108	{
1109	GLfloat f[4];
1110	f[0] = to->unit[u].eyeRCoeff.x;
1111	f[1] = to->unit[u].eyeRCoeff.y;
1112	f[2] = to->unit[u].eyeRCoeff.z;
1113	f[3] = to->unit[u].eyeRCoeff.w;
1114	diff_api.TexGenfv (GL_R, GL_EYE_PLANE, (const GLfloat *) f);
1115	from->unit[u].eyeRCoeff = to->unit[u].eyeRCoeff;
1116	}
1117	if (from->unit[u].eyeQCoeff.x != to->unit[u].eyeQCoeff.x \|\|
1118	from->unit[u].eyeQCoeff.y != to->unit[u].eyeQCoeff.y \|\|
1119	from->unit[u].eyeQCoeff.z != to->unit[u].eyeQCoeff.z \|\|
1120	from->unit[u].eyeQCoeff.w != to->unit[u].eyeQCoeff.w)
1121	{
1122	GLfloat f[4];
1123	f[0] = to->unit[u].eyeQCoeff.x;
1124	f[1] = to->unit[u].eyeQCoeff.y;
1125	f[2] = to->unit[u].eyeQCoeff.z;
1126	f[3] = to->unit[u].eyeQCoeff.w;
1127	diff_api.TexGenfv (GL_Q, GL_EYE_PLANE, (const GLfloat *) f);
1128	from->unit[u].eyeQCoeff = to->unit[u].eyeQCoeff;
1129	}
1130	diff_api.PopMatrix();
1131	CLEARDIRTY(tb->eyeGen[u], nbitID);
1132	}
1133	if (CHECKDIRTY(tb->genMode[u], bitID))
1134	{
1135	if (fromCtx->texture.curTextureUnit != u) {
1136	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
1137	fromCtx->texture.curTextureUnit = u;
1138	}
1139	if (from->unit[u].gen.s != to->unit[u].gen.s \|\|
1140	from->unit[u].gen.t != to->unit[u].gen.t \|\|
1141	from->unit[u].gen.r != to->unit[u].gen.r \|\|
1142	from->unit[u].gen.q != to->unit[u].gen.q)
1143	{
1144	diff_api.TexGeni (GL_S, GL_TEXTURE_GEN_MODE, to->unit[u].gen.s);
1145	diff_api.TexGeni (GL_T, GL_TEXTURE_GEN_MODE, to->unit[u].gen.t);
1146	diff_api.TexGeni (GL_R, GL_TEXTURE_GEN_MODE, to->unit[u].gen.r);
1147	diff_api.TexGeni (GL_Q, GL_TEXTURE_GEN_MODE, to->unit[u].gen.q);
1148	from->unit[u].gen = to->unit[u].gen;
1149	}
1150	CLEARDIRTY(tb->genMode[u], nbitID);
1151	}
1152
1153	/* Texture enviroment */
1154	if (CHECKDIRTY(tb->envBit[u], bitID))
1155	{
1156	if (from->unit[u].envMode != to->unit[u].envMode)
1157	{
1158	diff_api.TexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, to->unit[u].envMode);
1159	from->unit[u].envMode = to->unit[u].envMode;
1160	}
1161	if (from->unit[u].envColor.r != to->unit[u].envColor.r \|\|
1162	from->unit[u].envColor.g != to->unit[u].envColor.g \|\|
1163	from->unit[u].envColor.b != to->unit[u].envColor.b \|\|
1164	from->unit[u].envColor.a != to->unit[u].envColor.a)
1165	{
1166	GLfloat f[4];
1167	f[0] = to->unit[u].envColor.r;
1168	f[1] = to->unit[u].envColor.g;
1169	f[2] = to->unit[u].envColor.b;
1170	f[3] = to->unit[u].envColor.a;
1171	diff_api.TexEnvfv (GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, (const GLfloat *) f);
1172	from->unit[u].envColor = to->unit[u].envColor;
1173	}
1174	#ifdef CR_ARB_texture_env_combine
1175	if (from->unit[u].combineModeRGB != to->unit[u].combineModeRGB)
1176	{
1177	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, to->unit[u].combineModeRGB);
1178	from->unit[u].combineModeRGB = to->unit[u].combineModeRGB;
1179	}
1180	if (from->unit[u].combineModeA != to->unit[u].combineModeA)
1181	{
1182	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, to->unit[u].combineModeA);
1183	from->unit[u].combineModeA = to->unit[u].combineModeA;
1184	}
1185	if (from->unit[u].combineSourceRGB[0] != to->unit[u].combineSourceRGB[0])
1186	{
1187	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, to->unit[u].combineSourceRGB[0]);
1188	from->unit[u].combineSourceRGB[0] = to->unit[u].combineSourceRGB[0];
1189	}
1190	if (from->unit[u].combineSourceRGB[1] != to->unit[u].combineSourceRGB[1])
1191	{
1192	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, to->unit[u].combineSourceRGB[1]);
1193	from->unit[u].combineSourceRGB[1] = to->unit[u].combineSourceRGB[1];
1194	}
1195	if (from->unit[u].combineSourceRGB[2] != to->unit[u].combineSourceRGB[2])
1196	{
1197	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, to->unit[u].combineSourceRGB[2]);
1198	from->unit[u].combineSourceRGB[2] = to->unit[u].combineSourceRGB[2];
1199	}
1200	if (from->unit[u].combineSourceA[0] != to->unit[u].combineSourceA[0])
1201	{
1202	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, to->unit[u].combineSourceA[0]);
1203	from->unit[u].combineSourceA[0] = to->unit[u].combineSourceA[0];
1204	}
1205	if (from->unit[u].combineSourceA[1] != to->unit[u].combineSourceA[1])
1206	{
1207	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, to->unit[u].combineSourceA[1]);
1208	from->unit[u].combineSourceA[1] = to->unit[u].combineSourceA[1];
1209	}
1210	if (from->unit[u].combineSourceA[2] != to->unit[u].combineSourceA[2])
1211	{
1212	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_ARB, to->unit[u].combineSourceA[2]);
1213	from->unit[u].combineSourceA[2] = to->unit[u].combineSourceA[2];
1214	}
1215	if (from->unit[u].combineOperandRGB[0] != to->unit[u].combineOperandRGB[0])
1216	{
1217	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, to->unit[u].combineOperandRGB[0]);
1218	from->unit[u].combineOperandRGB[0] = to->unit[u].combineOperandRGB[0];
1219	}
1220	if (from->unit[u].combineOperandRGB[1] != to->unit[u].combineOperandRGB[1])
1221	{
1222	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, to->unit[u].combineOperandRGB[1]);
1223	from->unit[u].combineOperandRGB[1] = to->unit[u].combineOperandRGB[1];
1224	}
1225	if (from->unit[u].combineOperandRGB[2] != to->unit[u].combineOperandRGB[2])
1226	{
1227	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, to->unit[u].combineOperandRGB[2]);
1228	from->unit[u].combineOperandRGB[2] = to->unit[u].combineOperandRGB[2];
1229	}
1230	if (from->unit[u].combineOperandA[0] != to->unit[u].combineOperandA[0])
1231	{
1232	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, to->unit[u].combineOperandA[0]);
1233	from->unit[u].combineOperandA[0] = to->unit[u].combineOperandA[0];
1234	}
1235	if (from->unit[u].combineOperandA[1] != to->unit[u].combineOperandA[1])
1236	{
1237	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, to->unit[u].combineOperandA[1]);
1238	from->unit[u].combineOperandA[1] = to->unit[u].combineOperandA[1];
1239	}
1240	if (from->unit[u].combineOperandA[2] != to->unit[u].combineOperandA[2])
1241	{
1242	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_ARB, to->unit[u].combineOperandA[2]);
1243	from->unit[u].combineOperandA[2] = to->unit[u].combineOperandA[2];
1244	}
1245	if (from->unit[u].combineScaleRGB != to->unit[u].combineScaleRGB)
1246	{
1247	diff_api.TexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, to->unit[u].combineScaleRGB);
1248	from->unit[u].combineScaleRGB = to->unit[u].combineScaleRGB;
1249	}
1250	if (from->unit[u].combineScaleA != to->unit[u].combineScaleA)
1251	{
1252	diff_api.TexEnvf(GL_TEXTURE_ENV, GL_ALPHA_SCALE, to->unit[u].combineScaleA);
1253	from->unit[u].combineScaleA = to->unit[u].combineScaleA;
1254	}
1255	#endif
1256	#if CR_EXT_texture_lod_bias
1257	if (from->unit[u].lodBias != to->unit[u].lodBias)
1258	{
1259	diff_api.TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, to->unit[u].lodBias);
1260	from->unit[u].lodBias = to->unit[u].lodBias;
1261	}
1262	#endif
1263	CLEARDIRTY(tb->envBit[u], nbitID);
1264	}
1265
1266	/* loop over texture targets */
1267	for (t = 0; t < 5; t++)
1268	{
1269	tobj = NULL;
1270
1271	switch (t) {
1272	case 0:
1273	if (to->unit[u].enabled1D \|\| haveFragProg) {
1274	tobj = to->unit[u].currentTexture1D;
1275	fromBinding = &(from->unit[u].currentTexture1D);
1276	}
1277	break;
1278	case 1:
1279	if (to->unit[u].enabled2D \|\| haveFragProg) {
1280	tobj = to->unit[u].currentTexture2D;
1281	fromBinding = &(from->unit[u].currentTexture2D);
1282	}
1283	break;
1284	#ifdef CR_OPENGL_VERSION_1_2
1285	case 2:
1286	if (to->unit[u].enabled3D \|\| haveFragProg) {
1287	tobj = to->unit[u].currentTexture3D;
1288	fromBinding = &(from->unit[u].currentTexture3D);
1289	}
1290	break;
1291	#endif
1292	#ifdef CR_ARB_texture_cube_map
1293	case 3:
1294	if (fromCtx->extensions.ARB_texture_cube_map &&
1295	(to->unit[u].enabledCubeMap \|\| haveFragProg)) {
1296	tobj = to->unit[u].currentTextureCubeMap;
1297	fromBinding = &(from->unit[u].currentTextureCubeMap);
1298	}
1299	break;
1300	#endif
1301	#ifdef CR_NV_texture_rectangle
1302	case 4:
1303	if (fromCtx->extensions.NV_texture_rectangle &&
1304	(to->unit[u].enabledRect \|\| haveFragProg)) {
1305	tobj = to->unit[u].currentTextureRect;
1306	fromBinding = &(from->unit[u].currentTextureRect);
1307	}
1308	break;
1309	#endif
1310	default:
1311	/* maybe don't support cube maps or rects */
1312	continue;
1313	}
1314
1315	if (!tobj) {
1316	continue; /* with next target */
1317	}
1318
1319	/* Activate texture unit u if needed */
1320	if (fromCtx->texture.curTextureUnit != u) {
1321	diff_api.ActiveTextureARB( GL_TEXTURE0_ARB + u);
1322	fromCtx->texture.curTextureUnit = u;
1323	}
1324
1325	/* bind this texture if needed */
1326	if (CHECKDIRTY(tb->current[u], bitID))
1327	{
1328	if (*fromBinding != tobj)
1329	{
1330	diff_api.BindTexture(tobj->target, crStateGetTextureObjHWID(tobj));
1331	*fromBinding = tobj;
1332	}
1333	}
1334
1335	/* now, if the texture object is dirty */
1336	if (CHECKDIRTY(tobj->dirty, bitID))
1337	{
1338	crStateTextureObjectDiff(fromCtx, bitID, nbitID, tobj, GL_FALSE);
1339	}
1340	CLEARDIRTY(tobj->dirty, nbitID);
1341
1342	} /* loop over targets */
1343
1344	CLEARDIRTY(tb->current[u], nbitID);
1345
1346	} /* loop over units */
1347
1348	/* After possible fiddling with the active unit, put it back now */
1349	if (fromCtx->texture.curTextureUnit != toCtx->texture.curTextureUnit) {
1350	diff_api.ActiveTextureARB( toCtx->texture.curTextureUnit + GL_TEXTURE0_ARB );
1351	fromCtx->texture.curTextureUnit = toCtx->texture.curTextureUnit;
1352	}
1353	if (fromCtx->transform.matrixMode != toCtx->transform.matrixMode) {
1354	diff_api.MatrixMode(toCtx->transform.matrixMode);
1355	fromCtx->transform.matrixMode = toCtx->transform.matrixMode;
1356	}
1357
1358	CLEARDIRTY(tb->dirty, nbitID);
1359	}
1360
1361
1362
1363	struct callback_info
1364	{
1365	CRbitvalue bitID, nbitID;
1366	CRContext *g;
1367	GLboolean bForceUpdate;
1368	};
1369
1370
1371	/* Called by crHashtableWalk() below */
1372	static void
1373	DiffTextureObjectCallback( unsigned long key, void texObj , void cbData)
1374	{
1375	struct callback_info info = (struct callback_info ) cbData;
1376	CRTextureObj tobj = (CRTextureObj ) texObj;
1377	/*
1378	printf(" Checking %d 0x%x bitid=0x%x\n",tobj->name, tobj->dirty[0], info->bitID[0]);
1379	*/
1380	if (info->bForceUpdate \|\| CHECKDIRTY(tobj->dirty, info->bitID)) {
1381	/*
1382	printf(" Found Dirty! %d\n", tobj->name);
1383	*/
1384	crStateTextureObjectDiff(info->g, info->bitID, info->nbitID, tobj, info->bForceUpdate);
1385	CLEARDIRTY(tobj->dirty, info->nbitID);
1386	}
1387	}
1388
1389
1390	/*
1391	* This isn't used right now, but will be used in the future to fix some
1392	* potential display list problems. Specifically, if glBindTexture is
1393	* in a display list, we have to be sure that all outstanding texture object
1394	* updates are resolved before the list is called. If we don't, we may
1395	* wind up binding texture objects that are stale.
1396	*/
1397	void
1398	crStateDiffAllTextureObjects( CRContext g, CRbitvalue bitID, GLboolean bForceUpdate )
1399	{
1400	CRbitvalue nbitID[CR_MAX_BITARRAY];
1401	struct callback_info info;
1402	int j;
1403	int origUnit, orig1D, orig2D, orig3D, origCube, origRect;
1404
1405	for (j = 0; j < CR_MAX_BITARRAY; j++)
1406	nbitID[j] = ~bitID[j];
1407
1408	info.bitID = bitID;
1409	info.nbitID = nbitID;
1410	info.g = g;
1411	info.bForceUpdate = bForceUpdate;
1412
1413	/* save current texture bindings */
1414	origUnit = g->texture.curTextureUnit;
1415	orig1D = crStateGetTextureObjHWID(g->texture.unit[0].currentTexture1D);
1416	orig2D = crStateGetTextureObjHWID(g->texture.unit[0].currentTexture2D);
1417	orig3D = crStateGetTextureObjHWID(g->texture.unit[0].currentTexture3D);
1418	#ifdef CR_ARB_texture_cube_map
1419	origCube = crStateGetTextureObjHWID(g->texture.unit[0].currentTextureCubeMap);
1420	#endif
1421	#ifdef CR_NV_texture_rectangle
1422	origRect = crStateGetTextureObjHWID(g->texture.unit[0].currentTextureRect);
1423	#endif
1424
1425	/* use texture unit 0 for updates */
1426	diff_api.ActiveTextureARB(GL_TEXTURE0_ARB);
1427
1428	/* diff all the textures */
1429	crHashtableWalk(g->shared->textureTable, DiffTextureObjectCallback, (void *) &info);
1430
1431	/* default ones */
1432	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.base1D, GL_TRUE);
1433	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.base2D, GL_TRUE);
1434	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.base3D, GL_TRUE);
1435	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxy1D, GL_TRUE);
1436	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxy2D, GL_TRUE);
1437	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxy3D, GL_TRUE);
1438	#ifdef CR_ARB_texture_cube_map
1439	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.baseCubeMap, GL_TRUE);
1440	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxyCubeMap, GL_TRUE);
1441	#endif
1442	#ifdef CR_NV_texture_rectangle
1443	if (g->extensions.NV_texture_rectangle)
1444	{
1445	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.baseRect, GL_TRUE);
1446	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxyRect, GL_TRUE);
1447	}
1448	#endif
1449
1450	/* restore bindings */
1451	/* first restore unit 0 bindings the unit 0 is active currently */
1452	diff_api.BindTexture(GL_TEXTURE_1D, orig1D);
1453	diff_api.BindTexture(GL_TEXTURE_2D, orig2D);
1454	diff_api.BindTexture(GL_TEXTURE_3D, orig3D);
1455	#ifdef CR_ARB_texture_cube_map
1456	diff_api.BindTexture(GL_TEXTURE_CUBE_MAP_ARB, origCube);
1457	#endif
1458	#ifdef CR_NV_texture_rectangle
1459	diff_api.BindTexture(GL_TEXTURE_RECTANGLE_NV, origRect);
1460	#endif
1461	/* now restore the proper active unit */
1462	diff_api.ActiveTextureARB(GL_TEXTURE0_ARB + origUnit);
1463	}

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