state_texdiff.c@ 63199

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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	GLuint hwid = crStateGetTextureObjHWID(tobj);
607
608	if (!hwid)
609	return;
610
611	able[0] = diff_api.Disable;
612	able[1] = diff_api.Enable;
613
614	#if 0
615	/* XXX disabling this code fixed Wes Bethel's problem with missing/white
616	* textures. Setting the active texture unit here can screw up the
617	* current texture object bindings.
618	*/
619	/* Set active texture unit, and bind this texture object */
620	if (from->curTextureUnit != u) {
621	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
622	from->curTextureUnit = u;
623	}
624	#endif
625
626	diff_api.BindTexture(tobj->target, hwid);
627
628	if (alwaysDirty \|\| CHECKDIRTY(tobj->paramsBit[u], bitID))
629	{
630	GLfloat f[4];
631	f[0] = tobj->borderColor.r;
632	f[1] = tobj->borderColor.g;
633	f[2] = tobj->borderColor.b;
634	f[3] = tobj->borderColor.a;
635	diff_api.TexParameteri(tobj->target, GL_TEXTURE_BASE_LEVEL, tobj->baseLevel);
636	diff_api.TexParameteri(tobj->target, GL_TEXTURE_MAX_LEVEL, tobj->maxLevel);
637	diff_api.TexParameteri(tobj->target, GL_TEXTURE_MIN_FILTER, tobj->minFilter);
638	diff_api.TexParameteri(tobj->target, GL_TEXTURE_MAG_FILTER, tobj->magFilter);
639	diff_api.TexParameteri(tobj->target, GL_TEXTURE_WRAP_S, tobj->wrapS);
640	diff_api.TexParameteri(tobj->target, GL_TEXTURE_WRAP_T, tobj->wrapT);
641	#ifdef CR_OPENGL_VERSION_1_2
642	diff_api.TexParameteri(tobj->target, GL_TEXTURE_WRAP_R, tobj->wrapR);
643	diff_api.TexParameterf(tobj->target, GL_TEXTURE_PRIORITY, tobj->priority);
644	#endif
645	diff_api.TexParameterfv(tobj->target, GL_TEXTURE_BORDER_COLOR, (const GLfloat *) f);
646	#ifdef CR_EXT_texture_filter_anisotropic
647	if (fromCtx->extensions.EXT_texture_filter_anisotropic) {
648	diff_api.TexParameterf(tobj->target, GL_TEXTURE_MAX_ANISOTROPY_EXT, tobj->maxAnisotropy);
649	}
650	#endif
651	#ifdef CR_ARB_depth_texture
652	if (fromCtx->extensions.ARB_depth_texture)
653	diff_api.TexParameteri(tobj->target, GL_DEPTH_TEXTURE_MODE_ARB, tobj->depthMode);
654	#endif
655	#ifdef CR_ARB_shadow
656	if (fromCtx->extensions.ARB_shadow) {
657	diff_api.TexParameteri(tobj->target, GL_TEXTURE_COMPARE_MODE_ARB, tobj->compareMode);
658	diff_api.TexParameteri(tobj->target, GL_TEXTURE_COMPARE_FUNC_ARB, tobj->compareFunc);
659	}
660	#endif
661	#ifdef CR_ARB_shadow_ambient
662	if (fromCtx->extensions.ARB_shadow_ambient) {
663	diff_api.TexParameterf(tobj->target, GL_TEXTURE_COMPARE_FAIL_VALUE_ARB, tobj->compareFailValue);
664	}
665	#endif
666	#ifdef CR_SGIS_generate_mipmap
667	if (fromCtx->extensions.SGIS_generate_mipmap) {
668	diff_api.TexParameteri(tobj->target, GL_GENERATE_MIPMAP_SGIS, tobj->generateMipmap);
669	}
670	#endif
671	if (!alwaysDirty)
672	CLEARDIRTY(tobj->paramsBit[u], nbitID);
673	}
674
675	/* now, if the texture images are dirty */
676	if (alwaysDirty \|\| CHECKDIRTY(tobj->imageBit, bitID))
677	{
678	int lvl;
679	int face;
680
681	switch (tobj->target)
682	{
683	case GL_TEXTURE_1D:
684	for (lvl = 0; lvl <= from->maxLevel; lvl++)
685	{
686	CRTextureLevel *tl = &(tobj->level[0][lvl]);
687	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
688	{
689	if (tl->generateMipmap) {
690	diff_api.TexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, 1);
691	}
692	if (tl->width)
693	{
694	if (tl->compressed) {
695	diff_api.CompressedTexImage1DARB(GL_TEXTURE_1D, lvl,
696	tl->internalFormat, tl->width,
697	tl->border, tl->bytes, tl->img);
698	}
699	else {
700	/* alignment must be one */
701	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
702	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
703	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
704	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
705	if (tl->generateMipmap) {
706	diff_api.TexParameteri(GL_TEXTURE_1D, GL_GENERATE_MIPMAP_SGIS, 1);
707	}
708	diff_api.TexImage1D(GL_TEXTURE_1D, lvl,
709	tl->internalFormat,
710	tl->width, tl->border,
711	tl->format, tl->type, tl->img);
712	}
713	}
714	if (!alwaysDirty)
715	{
716	CLEARDIRTY(tl->dirty, nbitID);
717	}
718	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
719	else
720	{
721	crFree(tl->img);
722	tl->img = NULL;
723	}
724	#endif
725	}
726	}
727	break;
728	case GL_TEXTURE_2D:
729	for (lvl = 0; lvl <= from->maxLevel; lvl++)
730	{
731	CRTextureLevel *tl = &(tobj->level[0][lvl]);
732	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
733	{
734	if (tl->generateMipmap) {
735	diff_api.TexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, 1);
736	}
737
738	if (tl->width && tl->height)
739	{
740	if (tl->compressed) {
741	diff_api.CompressedTexImage2DARB(GL_TEXTURE_2D, lvl,
742	tl->internalFormat, tl->width,
743	tl->height, tl->border,
744	tl->bytes, tl->img);
745	}
746	else {
747	/* alignment must be one */
748	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
749	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
750	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
751	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
752	diff_api.TexImage2D(GL_TEXTURE_2D, lvl,
753	tl->internalFormat,
754	tl->width, tl->height, tl->border,
755	tl->format, tl->type, tl->img);
756	}
757	}
758
759	if (!alwaysDirty)
760	{
761	CLEARDIRTY(tl->dirty, nbitID);
762	}
763	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
764	else
765	{
766	crFree(tl->img);
767	tl->img = NULL;
768	}
769	#endif
770	}
771	}
772	break;
773	#ifdef CR_OPENGL_VERSION_1_2
774	case GL_TEXTURE_3D:
775	for (lvl = 0; lvl <= from->max3DLevel; lvl++)
776	{
777	CRTextureLevel *tl = &(tobj->level[0][lvl]);
778	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
779	{
780	if (tl->generateMipmap) {
781	diff_api.TexParameteri(GL_TEXTURE_3D, GL_GENERATE_MIPMAP_SGIS, 1);
782	}
783
784	if (tl->width && tl->height)
785	{
786	if (tl->compressed) {
787	diff_api.CompressedTexImage3DARB(GL_TEXTURE_3D, lvl,
788	tl->internalFormat, tl->width,
789	tl->height, tl->depth,
790	tl->border, tl->bytes, tl->img);
791	}
792	else {
793	/* alignment must be one */
794	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
795	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
796	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
797	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
798	diff_api.TexImage3D(GL_TEXTURE_3D, lvl,
799	tl->internalFormat,
800	tl->width, tl->height, tl->depth,
801	tl->border, tl->format,
802	tl->type, tl->img);
803	}
804	}
805
806	if (!alwaysDirty)
807	{
808	CLEARDIRTY(tl->dirty, nbitID);
809	}
810	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
811	else
812	{
813	crFree(tl->img);
814	tl->img = NULL;
815	}
816	#endif
817	}
818	}
819	break;
820	#endif
821	#ifdef CR_NV_texture_rectangle
822	case GL_TEXTURE_RECTANGLE_NV:
823	/* only one level */
824	for (lvl = 0; lvl <= from->maxRectLevel; lvl++)
825	{
826	CRTextureLevel *tl = &(tobj->level[0][lvl]);
827	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
828	{
829	if (tl->width && tl->height)
830	{
831	if (tl->compressed) {
832	diff_api.CompressedTexImage2DARB(GL_TEXTURE_RECTANGLE_NV, lvl,
833	tl->internalFormat, tl->width,
834	tl->height, tl->border,
835	tl->bytes, tl->img);
836	}
837	else {
838	/* alignment must be one */
839	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
840	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
841	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
842	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
843	diff_api.TexImage2D(GL_TEXTURE_RECTANGLE_NV, lvl,
844	tl->internalFormat,
845	tl->width, tl->height, tl->border,
846	tl->format, tl->type, tl->img);
847	}
848	}
849
850	if (!alwaysDirty)
851	{
852	CLEARDIRTY(tl->dirty, nbitID);
853	}
854	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
855	else
856	{
857	crFree(tl->img);
858	tl->img = NULL;
859	}
860	#endif
861	}
862	}
863	break;
864	#endif
865	#ifdef CR_ARB_texture_cube_map
866	case GL_TEXTURE_CUBE_MAP_ARB:
867	for (face = 0; face < 6; face++)
868	{
869	const GLenum target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + face;
870	for (lvl = 0; lvl <= from->maxCubeMapLevel; lvl++)
871	{
872	CRTextureLevel *tl = &(tobj->level[face][lvl]);
873	if (alwaysDirty \|\| CHECKDIRTY(tl->dirty, bitID))
874	{
875	if (tl->generateMipmap) {
876	diff_api.TexParameteri(GL_TEXTURE_CUBE_MAP_ARB,
877	GL_GENERATE_MIPMAP_SGIS, 1);
878	}
879
880	if (tl->width && tl->height)
881	{
882	if (tl->compressed) {
883	diff_api.CompressedTexImage2DARB(target,
884	lvl, tl->internalFormat,
885	tl->width, tl->height,
886	tl->border, tl->bytes, tl->img);
887	}
888	else {
889	/* alignment must be one */
890	diff_api.PixelStorei(GL_UNPACK_ROW_LENGTH, 0);
891	diff_api.PixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
892	diff_api.PixelStorei(GL_UNPACK_SKIP_ROWS, 0);
893	diff_api.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
894	diff_api.TexImage2D(target, lvl,
895	tl->internalFormat,
896	tl->width, tl->height, tl->border,
897	tl->format, tl->type, tl->img);
898	}
899	}
900
901	if (!alwaysDirty)
902	{
903	CLEARDIRTY(tl->dirty, nbitID);
904	}
905	#ifdef CR_STATE_NO_TEXTURE_IMAGE_STORE
906	else
907	{
908	crFree(tl->img);
909	tl->img = NULL;
910	}
911	#endif
912	}
913	} /* for lvl */
914	} /* for face */
915	break;
916	#endif
917	default:
918	UNIMPLEMENTED();
919
920	} /* switch */
921	} /* if (CHECKDIRTY(tobj->imageBit, bitID)) */
922	}
923
924
925
926	void
927	crStateTextureDiff( CRTextureBits tb, CRbitvalue bitID,
928	CRContext fromCtx, CRContext toCtx )
929	{
930	CRTextureState *from = &(fromCtx->texture);
931	CRTextureState *to = &(toCtx->texture);
932	unsigned int u, t, j;
933	glAble able[2];
934	CRbitvalue nbitID[CR_MAX_BITARRAY];
935	const GLboolean haveFragProg = fromCtx->extensions.ARB_fragment_program \|\| fromCtx->extensions.NV_fragment_program;
936
937	for (j=0;j<CR_MAX_BITARRAY;j++)
938	nbitID[j] = ~bitID[j];
939
940	able[0] = diff_api.Disable;
941	able[1] = diff_api.Enable;
942
943	/* loop over texture units */
944	for (u = 0; u < fromCtx->limits.maxTextureUnits; u++)
945	{
946	CRTextureObj **fromBinding = NULL;
947	CRTextureObj *tobj;
948
949	/* take care of enables/disables */
950	if (CHECKDIRTY(tb->enable[u], bitID))
951	{
952
953	/* Activate texture unit u if needed */
954	if (fromCtx->texture.curTextureUnit != u) {
955	diff_api.ActiveTextureARB( GL_TEXTURE0_ARB + u);
956	fromCtx->texture.curTextureUnit = u;
957	}
958
959	if (from->unit[u].enabled1D != to->unit[u].enabled1D)
960	{
961	able[to->unit[u].enabled1D](GL_TEXTURE_1D);
962	from->unit[u].enabled1D = to->unit[u].enabled1D;
963	}
964	if (from->unit[u].enabled2D != to->unit[u].enabled2D)
965	{
966	able[to->unit[u].enabled2D](GL_TEXTURE_2D);
967	from->unit[u].enabled2D = to->unit[u].enabled2D;
968	}
969	#ifdef CR_OPENGL_VERSION_1_2
970	if (from->unit[u].enabled3D != to->unit[u].enabled3D)
971	{
972	able[to->unit[u].enabled3D](GL_TEXTURE_3D);
973	from->unit[u].enabled3D = to->unit[u].enabled3D;
974	}
975	#endif
976	#ifdef CR_ARB_texture_cube_map
977	if (fromCtx->extensions.ARB_texture_cube_map &&
978	from->unit[u].enabledCubeMap != to->unit[u].enabledCubeMap)
979	{
980	able[to->unit[u].enabledCubeMap](GL_TEXTURE_CUBE_MAP_ARB);
981	from->unit[u].enabledCubeMap = to->unit[u].enabledCubeMap;
982	}
983	#endif
984	#ifdef CR_NV_texture_rectangle
985	if (fromCtx->extensions.NV_texture_rectangle &&
986	from->unit[u].enabledRect != to->unit[u].enabledRect)
987	{
988	able[to->unit[u].enabledRect](GL_TEXTURE_RECTANGLE_NV);
989	from->unit[u].enabledRect = to->unit[u].enabledRect;
990	}
991	#endif
992
993	/* texgen enables */
994	if (from->unit[u].textureGen.s != to->unit[u].textureGen.s \|\|
995	from->unit[u].textureGen.t != to->unit[u].textureGen.t \|\|
996	from->unit[u].textureGen.r != to->unit[u].textureGen.r \|\|
997	from->unit[u].textureGen.q != to->unit[u].textureGen.q)
998	{
999	able[to->unit[u].textureGen.s](GL_TEXTURE_GEN_S);
1000	able[to->unit[u].textureGen.t](GL_TEXTURE_GEN_T);
1001	able[to->unit[u].textureGen.r](GL_TEXTURE_GEN_R);
1002	able[to->unit[u].textureGen.q](GL_TEXTURE_GEN_Q);
1003	from->unit[u].textureGen = to->unit[u].textureGen;
1004	}
1005	CLEARDIRTY(tb->enable[u], nbitID);
1006	}
1007
1008
1009	/* Texgen coefficients */
1010	if (CHECKDIRTY(tb->objGen[u], bitID))
1011	{
1012	if (fromCtx->texture.curTextureUnit != u) {
1013	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
1014	fromCtx->texture.curTextureUnit = u;
1015	}
1016	if (from->unit[u].objSCoeff.x != to->unit[u].objSCoeff.x \|\|
1017	from->unit[u].objSCoeff.y != to->unit[u].objSCoeff.y \|\|
1018	from->unit[u].objSCoeff.z != to->unit[u].objSCoeff.z \|\|
1019	from->unit[u].objSCoeff.w != to->unit[u].objSCoeff.w)
1020	{
1021	GLfloat f[4];
1022	f[0] = to->unit[u].objSCoeff.x;
1023	f[1] = to->unit[u].objSCoeff.y;
1024	f[2] = to->unit[u].objSCoeff.z;
1025	f[3] = to->unit[u].objSCoeff.w;
1026	diff_api.TexGenfv (GL_S, GL_OBJECT_PLANE, (const GLfloat *) f);
1027	from->unit[u].objSCoeff = to->unit[u].objSCoeff;
1028	}
1029	if (from->unit[u].objTCoeff.x != to->unit[u].objTCoeff.x \|\|
1030	from->unit[u].objTCoeff.y != to->unit[u].objTCoeff.y \|\|
1031	from->unit[u].objTCoeff.z != to->unit[u].objTCoeff.z \|\|
1032	from->unit[u].objTCoeff.w != to->unit[u].objTCoeff.w)
1033	{
1034	GLfloat f[4];
1035	f[0] = to->unit[u].objTCoeff.x;
1036	f[1] = to->unit[u].objTCoeff.y;
1037	f[2] = to->unit[u].objTCoeff.z;
1038	f[3] = to->unit[u].objTCoeff.w;
1039	diff_api.TexGenfv (GL_T, GL_OBJECT_PLANE, (const GLfloat *) f);
1040	from->unit[u].objTCoeff = to->unit[u].objTCoeff;
1041	}
1042	if (from->unit[u].objRCoeff.x != to->unit[u].objRCoeff.x \|\|
1043	from->unit[u].objRCoeff.y != to->unit[u].objRCoeff.y \|\|
1044	from->unit[u].objRCoeff.z != to->unit[u].objRCoeff.z \|\|
1045	from->unit[u].objRCoeff.w != to->unit[u].objRCoeff.w)
1046	{
1047	GLfloat f[4];
1048	f[0] = to->unit[u].objRCoeff.x;
1049	f[1] = to->unit[u].objRCoeff.y;
1050	f[2] = to->unit[u].objRCoeff.z;
1051	f[3] = to->unit[u].objRCoeff.w;
1052	diff_api.TexGenfv (GL_R, GL_OBJECT_PLANE, (const GLfloat *) f);
1053	from->unit[u].objRCoeff = to->unit[u].objRCoeff;
1054	}
1055	if (from->unit[u].objQCoeff.x != to->unit[u].objQCoeff.x \|\|
1056	from->unit[u].objQCoeff.y != to->unit[u].objQCoeff.y \|\|
1057	from->unit[u].objQCoeff.z != to->unit[u].objQCoeff.z \|\|
1058	from->unit[u].objQCoeff.w != to->unit[u].objQCoeff.w)
1059	{
1060	GLfloat f[4];
1061	f[0] = to->unit[u].objQCoeff.x;
1062	f[1] = to->unit[u].objQCoeff.y;
1063	f[2] = to->unit[u].objQCoeff.z;
1064	f[3] = to->unit[u].objQCoeff.w;
1065	diff_api.TexGenfv (GL_Q, GL_OBJECT_PLANE, (const GLfloat *) f);
1066	from->unit[u].objQCoeff = to->unit[u].objQCoeff;
1067	}
1068	CLEARDIRTY(tb->objGen[u], nbitID);
1069	}
1070	if (CHECKDIRTY(tb->eyeGen[u], bitID))
1071	{
1072	if (fromCtx->texture.curTextureUnit != u) {
1073	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
1074	fromCtx->texture.curTextureUnit = u;
1075	}
1076	if (fromCtx->transform.matrixMode != GL_MODELVIEW) {
1077	diff_api.MatrixMode(GL_MODELVIEW);
1078	fromCtx->transform.matrixMode = GL_MODELVIEW;
1079	}
1080	diff_api.PushMatrix();
1081	diff_api.LoadIdentity();
1082	if (from->unit[u].eyeSCoeff.x != to->unit[u].eyeSCoeff.x \|\|
1083	from->unit[u].eyeSCoeff.y != to->unit[u].eyeSCoeff.y \|\|
1084	from->unit[u].eyeSCoeff.z != to->unit[u].eyeSCoeff.z \|\|
1085	from->unit[u].eyeSCoeff.w != to->unit[u].eyeSCoeff.w)
1086	{
1087	GLfloat f[4];
1088	f[0] = to->unit[u].eyeSCoeff.x;
1089	f[1] = to->unit[u].eyeSCoeff.y;
1090	f[2] = to->unit[u].eyeSCoeff.z;
1091	f[3] = to->unit[u].eyeSCoeff.w;
1092	diff_api.TexGenfv (GL_S, GL_EYE_PLANE, (const GLfloat *) f);
1093	from->unit[u].eyeSCoeff = to->unit[u].eyeSCoeff;
1094	}
1095	if (from->unit[u].eyeTCoeff.x != to->unit[u].eyeTCoeff.x \|\|
1096	from->unit[u].eyeTCoeff.y != to->unit[u].eyeTCoeff.y \|\|
1097	from->unit[u].eyeTCoeff.z != to->unit[u].eyeTCoeff.z \|\|
1098	from->unit[u].eyeTCoeff.w != to->unit[u].eyeTCoeff.w)
1099	{
1100	GLfloat f[4];
1101	f[0] = to->unit[u].eyeTCoeff.x;
1102	f[1] = to->unit[u].eyeTCoeff.y;
1103	f[2] = to->unit[u].eyeTCoeff.z;
1104	f[3] = to->unit[u].eyeTCoeff.w;
1105	diff_api.TexGenfv (GL_T, GL_EYE_PLANE, (const GLfloat *) f);
1106	from->unit[u].eyeTCoeff = to->unit[u].eyeTCoeff;
1107	}
1108	if (from->unit[u].eyeRCoeff.x != to->unit[u].eyeRCoeff.x \|\|
1109	from->unit[u].eyeRCoeff.y != to->unit[u].eyeRCoeff.y \|\|
1110	from->unit[u].eyeRCoeff.z != to->unit[u].eyeRCoeff.z \|\|
1111	from->unit[u].eyeRCoeff.w != to->unit[u].eyeRCoeff.w)
1112	{
1113	GLfloat f[4];
1114	f[0] = to->unit[u].eyeRCoeff.x;
1115	f[1] = to->unit[u].eyeRCoeff.y;
1116	f[2] = to->unit[u].eyeRCoeff.z;
1117	f[3] = to->unit[u].eyeRCoeff.w;
1118	diff_api.TexGenfv (GL_R, GL_EYE_PLANE, (const GLfloat *) f);
1119	from->unit[u].eyeRCoeff = to->unit[u].eyeRCoeff;
1120	}
1121	if (from->unit[u].eyeQCoeff.x != to->unit[u].eyeQCoeff.x \|\|
1122	from->unit[u].eyeQCoeff.y != to->unit[u].eyeQCoeff.y \|\|
1123	from->unit[u].eyeQCoeff.z != to->unit[u].eyeQCoeff.z \|\|
1124	from->unit[u].eyeQCoeff.w != to->unit[u].eyeQCoeff.w)
1125	{
1126	GLfloat f[4];
1127	f[0] = to->unit[u].eyeQCoeff.x;
1128	f[1] = to->unit[u].eyeQCoeff.y;
1129	f[2] = to->unit[u].eyeQCoeff.z;
1130	f[3] = to->unit[u].eyeQCoeff.w;
1131	diff_api.TexGenfv (GL_Q, GL_EYE_PLANE, (const GLfloat *) f);
1132	from->unit[u].eyeQCoeff = to->unit[u].eyeQCoeff;
1133	}
1134	diff_api.PopMatrix();
1135	CLEARDIRTY(tb->eyeGen[u], nbitID);
1136	}
1137	if (CHECKDIRTY(tb->genMode[u], bitID))
1138	{
1139	if (fromCtx->texture.curTextureUnit != u) {
1140	diff_api.ActiveTextureARB( u + GL_TEXTURE0_ARB );
1141	fromCtx->texture.curTextureUnit = u;
1142	}
1143	if (from->unit[u].gen.s != to->unit[u].gen.s \|\|
1144	from->unit[u].gen.t != to->unit[u].gen.t \|\|
1145	from->unit[u].gen.r != to->unit[u].gen.r \|\|
1146	from->unit[u].gen.q != to->unit[u].gen.q)
1147	{
1148	diff_api.TexGeni (GL_S, GL_TEXTURE_GEN_MODE, to->unit[u].gen.s);
1149	diff_api.TexGeni (GL_T, GL_TEXTURE_GEN_MODE, to->unit[u].gen.t);
1150	diff_api.TexGeni (GL_R, GL_TEXTURE_GEN_MODE, to->unit[u].gen.r);
1151	diff_api.TexGeni (GL_Q, GL_TEXTURE_GEN_MODE, to->unit[u].gen.q);
1152	from->unit[u].gen = to->unit[u].gen;
1153	}
1154	CLEARDIRTY(tb->genMode[u], nbitID);
1155	}
1156
1157	/* Texture enviroment */
1158	if (CHECKDIRTY(tb->envBit[u], bitID))
1159	{
1160	if (from->unit[u].envMode != to->unit[u].envMode)
1161	{
1162	diff_api.TexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, to->unit[u].envMode);
1163	from->unit[u].envMode = to->unit[u].envMode;
1164	}
1165	if (from->unit[u].envColor.r != to->unit[u].envColor.r \|\|
1166	from->unit[u].envColor.g != to->unit[u].envColor.g \|\|
1167	from->unit[u].envColor.b != to->unit[u].envColor.b \|\|
1168	from->unit[u].envColor.a != to->unit[u].envColor.a)
1169	{
1170	GLfloat f[4];
1171	f[0] = to->unit[u].envColor.r;
1172	f[1] = to->unit[u].envColor.g;
1173	f[2] = to->unit[u].envColor.b;
1174	f[3] = to->unit[u].envColor.a;
1175	diff_api.TexEnvfv (GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, (const GLfloat *) f);
1176	from->unit[u].envColor = to->unit[u].envColor;
1177	}
1178	#ifdef CR_ARB_texture_env_combine
1179	if (from->unit[u].combineModeRGB != to->unit[u].combineModeRGB)
1180	{
1181	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, to->unit[u].combineModeRGB);
1182	from->unit[u].combineModeRGB = to->unit[u].combineModeRGB;
1183	}
1184	if (from->unit[u].combineModeA != to->unit[u].combineModeA)
1185	{
1186	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, to->unit[u].combineModeA);
1187	from->unit[u].combineModeA = to->unit[u].combineModeA;
1188	}
1189	if (from->unit[u].combineSourceRGB[0] != to->unit[u].combineSourceRGB[0])
1190	{
1191	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, to->unit[u].combineSourceRGB[0]);
1192	from->unit[u].combineSourceRGB[0] = to->unit[u].combineSourceRGB[0];
1193	}
1194	if (from->unit[u].combineSourceRGB[1] != to->unit[u].combineSourceRGB[1])
1195	{
1196	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, to->unit[u].combineSourceRGB[1]);
1197	from->unit[u].combineSourceRGB[1] = to->unit[u].combineSourceRGB[1];
1198	}
1199	if (from->unit[u].combineSourceRGB[2] != to->unit[u].combineSourceRGB[2])
1200	{
1201	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, to->unit[u].combineSourceRGB[2]);
1202	from->unit[u].combineSourceRGB[2] = to->unit[u].combineSourceRGB[2];
1203	}
1204	if (from->unit[u].combineSourceA[0] != to->unit[u].combineSourceA[0])
1205	{
1206	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, to->unit[u].combineSourceA[0]);
1207	from->unit[u].combineSourceA[0] = to->unit[u].combineSourceA[0];
1208	}
1209	if (from->unit[u].combineSourceA[1] != to->unit[u].combineSourceA[1])
1210	{
1211	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, to->unit[u].combineSourceA[1]);
1212	from->unit[u].combineSourceA[1] = to->unit[u].combineSourceA[1];
1213	}
1214	if (from->unit[u].combineSourceA[2] != to->unit[u].combineSourceA[2])
1215	{
1216	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_ARB, to->unit[u].combineSourceA[2]);
1217	from->unit[u].combineSourceA[2] = to->unit[u].combineSourceA[2];
1218	}
1219	if (from->unit[u].combineOperandRGB[0] != to->unit[u].combineOperandRGB[0])
1220	{
1221	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, to->unit[u].combineOperandRGB[0]);
1222	from->unit[u].combineOperandRGB[0] = to->unit[u].combineOperandRGB[0];
1223	}
1224	if (from->unit[u].combineOperandRGB[1] != to->unit[u].combineOperandRGB[1])
1225	{
1226	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, to->unit[u].combineOperandRGB[1]);
1227	from->unit[u].combineOperandRGB[1] = to->unit[u].combineOperandRGB[1];
1228	}
1229	if (from->unit[u].combineOperandRGB[2] != to->unit[u].combineOperandRGB[2])
1230	{
1231	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, to->unit[u].combineOperandRGB[2]);
1232	from->unit[u].combineOperandRGB[2] = to->unit[u].combineOperandRGB[2];
1233	}
1234	if (from->unit[u].combineOperandA[0] != to->unit[u].combineOperandA[0])
1235	{
1236	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, to->unit[u].combineOperandA[0]);
1237	from->unit[u].combineOperandA[0] = to->unit[u].combineOperandA[0];
1238	}
1239	if (from->unit[u].combineOperandA[1] != to->unit[u].combineOperandA[1])
1240	{
1241	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, to->unit[u].combineOperandA[1]);
1242	from->unit[u].combineOperandA[1] = to->unit[u].combineOperandA[1];
1243	}
1244	if (from->unit[u].combineOperandA[2] != to->unit[u].combineOperandA[2])
1245	{
1246	diff_api.TexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_ARB, to->unit[u].combineOperandA[2]);
1247	from->unit[u].combineOperandA[2] = to->unit[u].combineOperandA[2];
1248	}
1249	if (from->unit[u].combineScaleRGB != to->unit[u].combineScaleRGB)
1250	{
1251	diff_api.TexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, to->unit[u].combineScaleRGB);
1252	from->unit[u].combineScaleRGB = to->unit[u].combineScaleRGB;
1253	}
1254	if (from->unit[u].combineScaleA != to->unit[u].combineScaleA)
1255	{
1256	diff_api.TexEnvf(GL_TEXTURE_ENV, GL_ALPHA_SCALE, to->unit[u].combineScaleA);
1257	from->unit[u].combineScaleA = to->unit[u].combineScaleA;
1258	}
1259	#endif
1260	#if CR_EXT_texture_lod_bias
1261	if (from->unit[u].lodBias != to->unit[u].lodBias)
1262	{
1263	diff_api.TexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, to->unit[u].lodBias);
1264	from->unit[u].lodBias = to->unit[u].lodBias;
1265	}
1266	#endif
1267	CLEARDIRTY(tb->envBit[u], nbitID);
1268	}
1269
1270	/* loop over texture targets */
1271	for (t = 0; t < 5; t++)
1272	{
1273	tobj = NULL;
1274
1275	switch (t) {
1276	case 0:
1277	if (to->unit[u].enabled1D \|\| haveFragProg) {
1278	tobj = to->unit[u].currentTexture1D;
1279	fromBinding = &(from->unit[u].currentTexture1D);
1280	}
1281	break;
1282	case 1:
1283	if (to->unit[u].enabled2D \|\| haveFragProg) {
1284	tobj = to->unit[u].currentTexture2D;
1285	fromBinding = &(from->unit[u].currentTexture2D);
1286	}
1287	break;
1288	#ifdef CR_OPENGL_VERSION_1_2
1289	case 2:
1290	if (to->unit[u].enabled3D \|\| haveFragProg) {
1291	tobj = to->unit[u].currentTexture3D;
1292	fromBinding = &(from->unit[u].currentTexture3D);
1293	}
1294	break;
1295	#endif
1296	#ifdef CR_ARB_texture_cube_map
1297	case 3:
1298	if (fromCtx->extensions.ARB_texture_cube_map &&
1299	(to->unit[u].enabledCubeMap \|\| haveFragProg)) {
1300	tobj = to->unit[u].currentTextureCubeMap;
1301	fromBinding = &(from->unit[u].currentTextureCubeMap);
1302	}
1303	break;
1304	#endif
1305	#ifdef CR_NV_texture_rectangle
1306	case 4:
1307	if (fromCtx->extensions.NV_texture_rectangle &&
1308	(to->unit[u].enabledRect \|\| haveFragProg)) {
1309	tobj = to->unit[u].currentTextureRect;
1310	fromBinding = &(from->unit[u].currentTextureRect);
1311	}
1312	break;
1313	#endif
1314	default:
1315	/* maybe don't support cube maps or rects */
1316	continue;
1317	}
1318
1319	if (!tobj) {
1320	continue; /* with next target */
1321	}
1322
1323	/* Activate texture unit u if needed */
1324	if (fromCtx->texture.curTextureUnit != u) {
1325	diff_api.ActiveTextureARB( GL_TEXTURE0_ARB + u);
1326	fromCtx->texture.curTextureUnit = u;
1327	}
1328
1329	/* bind this texture if needed */
1330	if (CHECKDIRTY(tb->current[u], bitID))
1331	{
1332	if (*fromBinding != tobj)
1333	{
1334	diff_api.BindTexture(tobj->target, crStateGetTextureObjHWID(tobj));
1335	*fromBinding = tobj;
1336	}
1337	}
1338
1339	/* now, if the texture object is dirty */
1340	if (CHECKDIRTY(tobj->dirty, bitID))
1341	{
1342	crStateTextureObjectDiff(fromCtx, bitID, nbitID, tobj, GL_FALSE);
1343	}
1344	CLEARDIRTY(tobj->dirty, nbitID);
1345
1346	} /* loop over targets */
1347
1348	CLEARDIRTY(tb->current[u], nbitID);
1349
1350	} /* loop over units */
1351
1352	/* After possible fiddling with the active unit, put it back now */
1353	if (fromCtx->texture.curTextureUnit != toCtx->texture.curTextureUnit) {
1354	diff_api.ActiveTextureARB( toCtx->texture.curTextureUnit + GL_TEXTURE0_ARB );
1355	fromCtx->texture.curTextureUnit = toCtx->texture.curTextureUnit;
1356	}
1357	if (fromCtx->transform.matrixMode != toCtx->transform.matrixMode) {
1358	diff_api.MatrixMode(toCtx->transform.matrixMode);
1359	fromCtx->transform.matrixMode = toCtx->transform.matrixMode;
1360	}
1361
1362	CLEARDIRTY(tb->dirty, nbitID);
1363	}
1364
1365
1366
1367	struct callback_info
1368	{
1369	CRbitvalue bitID, nbitID;
1370	CRContext *g;
1371	GLboolean bForceUpdate;
1372	};
1373
1374
1375	/* Called by crHashtableWalk() below */
1376	static void
1377	DiffTextureObjectCallback( unsigned long key, void texObj , void cbData)
1378	{
1379	struct callback_info info = (struct callback_info ) cbData;
1380	CRTextureObj tobj = (CRTextureObj ) texObj;
1381	(void)key;
1382
1383	/*
1384	printf(" Checking %d 0x%x bitid=0x%x\n",tobj->name, tobj->dirty[0], info->bitID[0]);
1385	*/
1386	if (info->bForceUpdate \|\| CHECKDIRTY(tobj->dirty, info->bitID)) {
1387	/*
1388	printf(" Found Dirty! %d\n", tobj->name);
1389	*/
1390	crStateTextureObjectDiff(info->g, info->bitID, info->nbitID, tobj, info->bForceUpdate);
1391	CLEARDIRTY(tobj->dirty, info->nbitID);
1392	}
1393	}
1394
1395
1396	/*
1397	* This isn't used right now, but will be used in the future to fix some
1398	* potential display list problems. Specifically, if glBindTexture is
1399	* in a display list, we have to be sure that all outstanding texture object
1400	* updates are resolved before the list is called. If we don't, we may
1401	* wind up binding texture objects that are stale.
1402	*/
1403	void
1404	crStateDiffAllTextureObjects( CRContext g, CRbitvalue bitID, GLboolean bForceUpdate )
1405	{
1406	CRbitvalue nbitID[CR_MAX_BITARRAY];
1407	struct callback_info info;
1408	int j;
1409	int origUnit, orig1D, orig2D, orig3D, origCube, origRect;
1410
1411	for (j = 0; j < CR_MAX_BITARRAY; j++)
1412	nbitID[j] = ~bitID[j];
1413
1414	info.bitID = bitID;
1415	info.nbitID = nbitID;
1416	info.g = g;
1417	info.bForceUpdate = bForceUpdate;
1418
1419	/* save current texture bindings */
1420	origUnit = g->texture.curTextureUnit;
1421	orig1D = crStateGetTextureObjHWID(g->texture.unit[0].currentTexture1D);
1422	orig2D = crStateGetTextureObjHWID(g->texture.unit[0].currentTexture2D);
1423	orig3D = crStateGetTextureObjHWID(g->texture.unit[0].currentTexture3D);
1424	#ifdef CR_ARB_texture_cube_map
1425	origCube = crStateGetTextureObjHWID(g->texture.unit[0].currentTextureCubeMap);
1426	#endif
1427	#ifdef CR_NV_texture_rectangle
1428	origRect = crStateGetTextureObjHWID(g->texture.unit[0].currentTextureRect);
1429	#endif
1430
1431	/* use texture unit 0 for updates */
1432	diff_api.ActiveTextureARB(GL_TEXTURE0_ARB);
1433
1434	/* diff all the textures */
1435	crHashtableWalk(g->shared->textureTable, DiffTextureObjectCallback, (void *) &info);
1436
1437	/* default ones */
1438	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.base1D, GL_TRUE);
1439	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.base2D, GL_TRUE);
1440	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.base3D, GL_TRUE);
1441	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxy1D, GL_TRUE);
1442	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxy2D, GL_TRUE);
1443	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxy3D, GL_TRUE);
1444	#ifdef CR_ARB_texture_cube_map
1445	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.baseCubeMap, GL_TRUE);
1446	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxyCubeMap, GL_TRUE);
1447	#endif
1448	#ifdef CR_NV_texture_rectangle
1449	if (g->extensions.NV_texture_rectangle)
1450	{
1451	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.baseRect, GL_TRUE);
1452	crStateTextureObjectDiff(g, bitID, nbitID, &g->texture.proxyRect, GL_TRUE);
1453	}
1454	#endif
1455
1456	/* restore bindings */
1457	/* first restore unit 0 bindings the unit 0 is active currently */
1458	diff_api.BindTexture(GL_TEXTURE_1D, orig1D);
1459	diff_api.BindTexture(GL_TEXTURE_2D, orig2D);
1460	diff_api.BindTexture(GL_TEXTURE_3D, orig3D);
1461	#ifdef CR_ARB_texture_cube_map
1462	diff_api.BindTexture(GL_TEXTURE_CUBE_MAP_ARB, origCube);
1463	#endif
1464	#ifdef CR_NV_texture_rectangle
1465	diff_api.BindTexture(GL_TEXTURE_RECTANGLE_NV, origRect);
1466	#endif
1467	/* now restore the proper active unit */
1468	diff_api.ActiveTextureARB(GL_TEXTURE0_ARB + origUnit);
1469	}

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source: vbox/trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_texdiff.c@ 63199

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