state_teximage.c@ 16970

Last change on this file since 16970 was 16969, checked in by vboxsync, 16 years ago
crOpenGL: don't allocate memory for textures on host side (#3461)
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 46.6 KB

Line
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
8	#include "state.h"
9	#include "state/cr_statetypes.h"
10	#include "state/cr_texture.h"
11	#include "cr_pixeldata.h"
12	#include "cr_string.h"
13	#include "cr_mem.h"
14	#include "cr_version.h"
15	#include "state_internals.h"
16
17
18
19	static int
20	bitcount(int value)
21	{
22	int bits = 0;
23	for (; value > 0; value >>= 1) {
24	if (value & 0x1)
25	bits++;
26	}
27	return bits;
28	}
29
30
31	/**
32	* Return 1 if the target is a proxy target, 0 otherwise.
33	*/
34	static GLboolean
35	IsProxyTarget(GLenum target)
36	{
37	return (target == GL_PROXY_TEXTURE_1D \|\|
38	target == GL_PROXY_TEXTURE_2D \|\|
39	target == GL_PROXY_TEXTURE_3D \|\|
40	target == GL_PROXY_TEXTURE_RECTANGLE_NV \|\|
41	target == GL_PROXY_TEXTURE_CUBE_MAP);
42	}
43
44
45	/**
46	* Test if a texture width, height or depth is legal.
47	* It must be true that 0 <= size <= max.
48	* Furthermore, if the ARB_texture_non_power_of_two extension isn't
49	* present, size must also be a power of two.
50	*/
51	static GLboolean
52	isLegalSize(CRContext *g, GLsizei size, GLsizei max)
53	{
54	if (size < 0 \|\| size > max)
55	return GL_FALSE;
56	if (!g->extensions.ARB_texture_non_power_of_two) {
57	/* check for power of two */
58	if (size > 0 && bitcount(size) != 1)
59	return GL_FALSE;
60	}
61	return GL_TRUE;
62	}
63
64
65	/**
66	* Return the max legal texture level parameter for the given target.
67	*/
68	static GLint
69	MaxTextureLevel(CRContext *g, GLenum target)
70	{
71	CRTextureState *t = &(g->texture);
72	switch (target) {
73	case GL_TEXTURE_1D:
74	case GL_PROXY_TEXTURE_1D:
75	case GL_TEXTURE_2D:
76	case GL_PROXY_TEXTURE_2D:
77	return t->maxLevel;
78	case GL_TEXTURE_3D:
79	case GL_PROXY_TEXTURE_3D:
80	return t->max3DLevel;
81	case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
82	case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
83	case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
84	case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
85	case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
86	case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
87	case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
88	return t->maxCubeMapLevel;
89	case GL_TEXTURE_RECTANGLE_NV:
90	case GL_PROXY_TEXTURE_RECTANGLE_NV:
91	return t->maxRectLevel;
92	default:
93	return 0;
94	}
95	}
96
97
98	/**
99	* If GL_GENERATE_MIPMAP_SGIS is true and we modify the base level texture
100	* image we have to finish the mipmap.
101	* All we really have to do is fill in the width/height/format/etc for the
102	* remaining image levels. The image data doesn't matter here - the back-
103	* end OpenGL library will fill those in.
104	*/
105	static void
106	generate_mipmap(CRTextureObj *tobj, GLenum target)
107	{
108	CRTextureLevel *levels;
109	GLint level, width, height, depth;
110
111	if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
112	target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
113	levels = tobj->level[target - GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB];
114	}
115	else {
116	levels = tobj->level[0];
117	}
118
119	width = levels[tobj->baseLevel].width;
120	height = levels[tobj->baseLevel].height;
121	depth = levels[tobj->baseLevel].depth;
122
123	for (level = tobj->baseLevel + 1; level <= tobj->maxLevel; level++)
124	{
125	if (width > 1)
126	width /= 2;
127	if (height > 1)
128	height /= 2;
129	if (depth > 1)
130	depth /= 2;
131	levels[level].width = width;
132	levels[level].height = height;
133	levels[level].depth = depth;
134	levels[level].internalFormat = levels[tobj->baseLevel].internalFormat;
135	levels[level].format = levels[tobj->baseLevel].format;
136	levels[level].type = levels[tobj->baseLevel].type;
137	#ifdef CR_ARB_texture_compression
138	levels[level].compressed = levels[tobj->baseLevel].compressed;
139	#endif
140	levels[level].texFormat = levels[tobj->baseLevel].texFormat;
141	if (width == 1 && height == 1 && depth == 1)
142	break;
143	}
144
145	/* Set this flag so when we do the state diff, we enable GENERATE_MIPMAP
146	* prior to calling diff.TexImage().
147	*/
148	levels[tobj->baseLevel].generateMipmap = GL_TRUE;
149	}
150
151
152	/**
153	* Given a texture target and level, return pointers to the corresponding
154	* texture object and texture image level.
155	*/
156	void
157	crStateGetTextureObjectAndImage(CRContext *g, GLenum texTarget, GLint level,
158	CRTextureObj obj, CRTextureLevel img)
159	{
160	CRTextureState *t = &(g->texture);
161	CRTextureUnit *unit = t->unit + t->curTextureUnit;
162
163	switch (texTarget) {
164	case GL_TEXTURE_1D:
165	*obj = unit->currentTexture1D;
166	*img = unit->currentTexture1D->level[0] + level;
167	return;
168	case GL_PROXY_TEXTURE_1D:
169	*obj = &(t->proxy1D);
170	*img = t->proxy1D.level[0] + level;
171	return;
172	case GL_TEXTURE_2D:
173	*obj = unit->currentTexture2D;
174	*img = unit->currentTexture2D->level[0] + level;
175	return;
176	case GL_PROXY_TEXTURE_2D:
177	*obj = &(t->proxy2D);
178	*img = t->proxy2D.level[0] + level;
179	return;
180	case GL_TEXTURE_3D:
181	*obj = unit->currentTexture3D;
182	*img = unit->currentTexture3D->level[0] + level;
183	return;
184	case GL_PROXY_TEXTURE_3D:
185	*obj = &(t->proxy3D);
186	*img = t->proxy3D.level[0] + level;
187	return;
188	default:
189	/* fall-through */
190	;
191	}
192
193	#ifdef CR_NV_texture_rectangle
194	if (g->extensions.NV_texture_rectangle) {
195	switch (texTarget) {
196	case GL_PROXY_TEXTURE_RECTANGLE_NV:
197	*obj = &(t->proxyRect);
198	*img = t->proxyRect.level[0] + level;
199	return;
200	case GL_TEXTURE_RECTANGLE_NV:
201	*obj = unit->currentTextureRect;
202	*img = unit->currentTextureRect->level[0] + level;
203	return;
204	default:
205	/* fall-through */
206	;
207	}
208	}
209	#endif
210
211	#ifdef CR_ARB_texture_cube_map
212	if (g->extensions.ARB_texture_cube_map) {
213	switch (texTarget) {
214	case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
215	*obj = &(t->proxyCubeMap);
216	*img = t->proxyCubeMap.level[0] + level;
217	return;
218	case GL_TEXTURE_CUBE_MAP_ARB:
219	*obj = unit->currentTextureCubeMap;
220	*img = NULL;
221	return;
222	case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
223	*obj = unit->currentTextureCubeMap;
224	*img = unit->currentTextureCubeMap->level[0] + level;
225	return;
226	case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
227	*obj = unit->currentTextureCubeMap;
228	*img = unit->currentTextureCubeMap->level[1] + level;
229	return;
230	case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
231	*obj = unit->currentTextureCubeMap;
232	*img = unit->currentTextureCubeMap->level[2] + level;
233	return;
234	case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
235	*obj = unit->currentTextureCubeMap;
236	*img = unit->currentTextureCubeMap->level[3] + level;
237	return;
238	case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
239	*obj = unit->currentTextureCubeMap;
240	*img = unit->currentTextureCubeMap->level[4] + level;
241	return;
242	case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
243	*obj = unit->currentTextureCubeMap;
244	*img = unit->currentTextureCubeMap->level[5] + level;
245	return;
246	default:
247	/* fall-through */
248	;
249	}
250	}
251	#endif
252
253	*obj = NULL;
254	*img = NULL;
255	}
256
257
258	/**
259	* Do parameter error checking for glTexImagexD functions.
260	* We'll call crStateError if we detect any errors, unless it's a proxy target.
261	* Return GL_TRUE if any errors, GL_FALSE if no errors.
262	*/
263	static GLboolean
264	ErrorCheckTexImage(GLuint dims, GLenum target, GLint level,
265	GLsizei width, GLsizei height, GLsizei depth, GLint border)
266	{
267	CRContext *g = GetCurrentContext();
268
269	if (g->current.inBeginEnd)
270	{
271	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
272	"glTexImage%uD called in Begin/End", dims);
273	return GL_TRUE;
274	}
275
276	/*
277	* Test target
278	*/
279	switch (target)
280	{
281	case GL_TEXTURE_1D:
282	case GL_PROXY_TEXTURE_1D:
283	if (dims != 1) {
284	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
285	"glTexImage(invalid target=0x%x)", target);
286	return GL_TRUE;
287	}
288	break;
289	case GL_TEXTURE_2D:
290	case GL_PROXY_TEXTURE_2D:
291	if (dims != 2) {
292	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
293	"glTexImage(invalid target=0x%x)", target);
294	return GL_TRUE;
295	}
296	break;
297	case GL_TEXTURE_3D:
298	case GL_PROXY_TEXTURE_3D:
299	if (dims != 3) {
300	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
301	"glTexImage(invalid target=0x%x)", target);
302	return GL_TRUE;
303	}
304	break;
305	#ifdef CR_NV_texture_rectangle
306	case GL_TEXTURE_RECTANGLE_NV:
307	case GL_PROXY_TEXTURE_RECTANGLE_NV:
308	if (dims != 2 \|\| !g->extensions.NV_texture_rectangle) {
309	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
310	"glTexImage2D(invalid target=0x%x)", target);
311	return GL_TRUE;
312	}
313	break;
314	#endif
315	#ifdef CR_ARB_texture_cube_map
316	case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
317	case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
318	case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
319	case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
320	case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
321	case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
322	case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
323	if (dims != 2 \|\| !g->extensions.ARB_texture_cube_map) {
324	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
325	"glTexImage2D(invalid target=0x%x)", target);
326	return GL_TRUE;
327	}
328	break;
329	#endif
330	default:
331	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
332	"glTexImage%uD(invalid target=0x%x)", dims, target);
333	return GL_TRUE;
334	}
335
336	/*
337	* Test level
338	*/
339	if (level < 0 \|\| level > MaxTextureLevel(g, target)) {
340	if (!IsProxyTarget(target))
341	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
342	"glTexImage%uD(level=%d)", dims, level);
343	return GL_TRUE;
344	}
345
346	/*
347	* Test border
348	*/
349	if (border != 0 && border != 1) {
350	if (!IsProxyTarget(target))
351	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
352	"glTexImage%uD(border=%d)", dims, border);
353	return GL_TRUE;
354	}
355
356	if ((target == GL_PROXY_TEXTURE_RECTANGLE_NV \|\|
357	target == GL_TEXTURE_RECTANGLE_NV) && border != 0) {
358	if (!IsProxyTarget(target))
359	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
360	"glTexImage2D(border=%d)", border);
361	return GL_TRUE;
362	}
363
364	/*
365	* Test width, height, depth
366	*/
367	if (target == GL_PROXY_TEXTURE_1D \|\| target == GL_TEXTURE_1D) {
368	if (!isLegalSize(g, width - 2 * border, g->limits.maxTextureSize)) {
369	if (!IsProxyTarget(target))
370	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
371	"glTexImage1D(width=%d)", width);
372	return GL_TRUE;
373	}
374	}
375	else if (target == GL_PROXY_TEXTURE_2D \|\| target == GL_TEXTURE_2D) {
376	if (!isLegalSize(g, width - 2 * border, g->limits.maxTextureSize) \|\|
377	!isLegalSize(g, height - 2 * border, g->limits.maxTextureSize)) {
378	if (!IsProxyTarget(target))
379	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
380	"glTexImage2D(width=%d, height=%d)", width, height);
381	return GL_TRUE;
382	}
383	}
384	else if (target == GL_PROXY_TEXTURE_3D \|\| target == GL_TEXTURE_3D) {
385	if (!isLegalSize(g, width - 2 * border, g->limits.max3DTextureSize) \|\|
386	!isLegalSize(g, height - 2 * border, g->limits.max3DTextureSize) \|\|
387	!isLegalSize(g, depth - 2 * border, g->limits.max3DTextureSize)) {
388	if (!IsProxyTarget(target))
389	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
390	"glTexImage3D(width=%d, height=%d, depth=%d)",
391	width, height, depth);
392	return GL_TRUE;
393	}
394	}
395	else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV \|\|
396	target == GL_TEXTURE_RECTANGLE_NV) {
397	if (width < 0 \|\| width > (int) g->limits.maxRectTextureSize \|\|
398	height < 0 \|\| height > (int) g->limits.maxRectTextureSize) {
399	if (!IsProxyTarget(target))
400	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
401	"glTexImage2D(width=%d, height=%d)", width, height);
402	return GL_TRUE;
403	}
404	}
405	else {
406	/* cube map */
407	if (!isLegalSize(g, width - 2*border, g->limits.maxCubeMapTextureSize) \|\|
408	!isLegalSize(g, height - 2*border, g->limits.maxCubeMapTextureSize) \|\|
409	width != height) {
410	if (!IsProxyTarget(target))
411	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
412	"glTexImage2D(width=%d, height=%d)", width, height);
413	return GL_TRUE;
414	}
415	}
416
417	/* OK, no errors */
418	return GL_FALSE;
419	}
420
421
422	/**
423	* Do error check for glTexSubImage() functions.
424	* We'll call crStateError if we detect any errors.
425	* Return GL_TRUE if any errors, GL_FALSE if no errors.
426	*/
427	static GLboolean
428	ErrorCheckTexSubImage(GLuint dims, GLenum target, GLint level,
429	GLint xoffset, GLint yoffset, GLint zoffset,
430	GLsizei width, GLsizei height, GLsizei depth)
431	{
432	CRContext *g = GetCurrentContext();
433	CRTextureObj *tobj;
434	CRTextureLevel *tl;
435
436	if (g->current.inBeginEnd) {
437	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
438	"glTexSubImage%uD called in Begin/End", dims);
439	return GL_TRUE;
440	}
441
442	if (dims == 1) {
443	if (target != GL_TEXTURE_1D) {
444	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
445	"glTexSubImage1D(target=0x%x)", target);
446	return GL_TRUE;
447	}
448	}
449	else if (dims == 2) {
450	if (target != GL_TEXTURE_2D &&
451	target != GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
452	target != GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB &&
453	target != GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB &&
454	target != GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB &&
455	target != GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB &&
456	target != GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB &&
457	target != GL_TEXTURE_RECTANGLE_NV) {
458	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
459	"glTexSubImage2D(target=0x%x)", target);
460	return GL_TRUE;
461	}
462	}
463	else if (dims == 3) {
464	if (target != GL_TEXTURE_3D) {
465	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
466	"glTexSubImage3D(target=0x%x)", target);
467	return GL_TRUE;
468	}
469	}
470
471	/* test level */
472	if (level < 0 \|\| level > MaxTextureLevel(g, target)) {
473	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
474	"glTexSubImage%uD(level=%d)", dims, level);
475	return GL_TRUE;
476	}
477
478	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
479	if (!tobj \|\| !tl) {
480	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
481	"glTexSubImage%uD(target or level)", dims);
482	return GL_TRUE;
483	}
484
485	/* test x/y/zoffset and size */
486	if (xoffset < -tl->border \|\| xoffset + width > tl->width) {
487	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
488	"glTexSubImage%uD(xoffset=%d + width=%d > %d)",
489	dims, xoffset, width, tl->width);
490	return GL_TRUE;
491	}
492	if (dims > 1 && (yoffset < -tl->border \|\| yoffset + height > tl->height)) {
493	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
494	"glTexSubImage%uD(yoffset=%d + height=%d > %d)",
495	dims, yoffset, height, tl->height);
496	return GL_TRUE;
497	}
498	if (dims > 2 && (zoffset < -tl->border \|\| zoffset + depth > tl->depth)) {
499	crStateError(__LINE__, __FILE__, GL_INVALID_VALUE,
500	"glTexSubImage%uD(zoffset=%d and/or depth=%d)",
501	dims, zoffset, depth);
502	return GL_TRUE;
503	}
504
505	/* OK, no errors */
506	return GL_FALSE;
507	}
508
509
510
511	void STATE_APIENTRY
512	crStateTexImage1D(GLenum target, GLint level, GLint internalFormat,
513	GLsizei width, GLint border, GLenum format,
514	GLenum type, const GLvoid * pixels)
515	{
516	CRContext *g = GetCurrentContext();
517	CRTextureState *t = &(g->texture);
518	CRClientState *c = &(g->client);
519	CRTextureObj *tobj;
520	CRTextureLevel *tl;
521	CRStateBits *sb = GetCurrentBits();
522	CRTextureBits *tb = &(sb->texture);
523
524	FLUSH();
525
526	if (ErrorCheckTexImage(1, target, level, width, 1, 1, border)) {
527	if (IsProxyTarget(target)) {
528	/* clear all state, but don't generate error */
529	crStateTextureInitTextureObj(g, &(t->proxy1D), 0, GL_TEXTURE_1D);
530	}
531	else {
532	/* error was already recorded */
533	}
534	return;
535	}
536
537	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
538	CRASSERT(tobj);
539	CRASSERT(tl);
540
541	if (IsProxyTarget(target))
542	tl->bytes = 0;
543	else
544	tl->bytes = crImageSize(format, type, width, 1);
545
546	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
547	if (tl->bytes)
548	{
549	/* this is not a proxy texture target so alloc storage */
550	if (tl->img)
551	crFree(tl->img);
552	tl->img = (GLubyte *) crAlloc(tl->bytes);
553	if (!tl->img)
554	{
555	crStateError(__LINE__, __FILE__, GL_OUT_OF_MEMORY,
556	"glTexImage1D out of memory");
557	return;
558	}
559	if (pixels)
560	crPixelCopy1D((GLvoid *) tl->img, format, type,
561	pixels, format, type, width, &(c->unpack));
562	}
563	#endif
564
565	tl->width = width;
566	tl->height = 1;
567	tl->depth = 1;
568	tl->format = format;
569	tl->border = border;
570	tl->internalFormat = internalFormat;
571	crStateTextureInitTextureFormat(tl, internalFormat);
572	tl->type = type;
573	tl->compressed = GL_FALSE;
574	if (width)
575	tl->bytesPerPixel = tl->bytes / width;
576	else
577	tl->bytesPerPixel = 0;
578
579	#ifdef CR_SGIS_generate_mipmap
580	if (level == tobj->baseLevel && tobj->generateMipmap) {
581	generate_mipmap(tobj, target);
582	}
583	else {
584	tl->generateMipmap = GL_FALSE;
585	}
586	#endif
587
588	/* XXX may need to do some fine-tuning here for proxy textures */
589	DIRTY(tobj->dirty, g->neg_bitid);
590	DIRTY(tobj->imageBit, g->neg_bitid);
591	DIRTY(tl->dirty, g->neg_bitid);
592	DIRTY(tb->dirty, g->neg_bitid);
593	}
594
595
596	void STATE_APIENTRY
597	crStateTexImage2D(GLenum target, GLint level, GLint internalFormat,
598	GLsizei width, GLsizei height, GLint border,
599	GLenum format, GLenum type, const GLvoid * pixels)
600	{
601	CRContext *g = GetCurrentContext();
602	CRTextureState *t = &(g->texture);
603	CRClientState *c = &(g->client);
604	CRTextureObj *tobj = NULL;
605	CRTextureLevel *tl = NULL;
606	CRStateBits *sb = GetCurrentBits();
607	CRTextureBits *tb = &(sb->texture);
608	const int is_distrib = ((type == GL_TRUE) \|\| (type == GL_FALSE));
609
610	FLUSH();
611
612	/* NOTE: we skip parameter error checking if this is a distributed
613	* texture! The user better provide correct parameters!!!
614	*/
615	if (!is_distrib
616	&& ErrorCheckTexImage(2, target, level, width, height, 1, border)) {
617	if (IsProxyTarget(target)) {
618	/* clear all state, but don't generate error */
619	crStateTextureInitTextureObj(g, &(t->proxy2D), 0, GL_TEXTURE_2D);
620	}
621	else {
622	/* error was already recorded */
623	}
624	return;
625	}
626
627	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
628	CRASSERT(tobj);
629	CRASSERT(tl);
630
631	/* compute size of image buffer */
632	if (is_distrib) {
633	tl->bytes = crStrlen((char *) pixels) + 1;
634	tl->bytes += crImageSize(format, GL_UNSIGNED_BYTE, width, height);
635	}
636	else if (IsProxyTarget(target)) {
637	tl->bytes = 0;
638	}
639	else {
640	tl->bytes = crImageSize(format, type, width, height);
641	}
642
643	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
644	/* allocate the image buffer and fill it */
645	if (tl->bytes)
646	{
647	/* this is not a proxy texture target so alloc storage */
648	if (tl->img)
649	crFree(tl->img);
650	tl->img = (GLubyte *) crAlloc(tl->bytes);
651	if (!tl->img)
652	{
653	crStateError(__LINE__, __FILE__, GL_OUT_OF_MEMORY,
654	"glTexImage2D out of memory");
655	return;
656	}
657	if (pixels)
658	{
659	if (is_distrib)
660	{
661	crMemcpy((void ) tl->img, (void ) pixels, tl->bytes);
662	}
663	else
664	{
665	crPixelCopy2D(width, height,
666	(GLvoid ) tl->img, format, type, NULL, / dst */
667	pixels, format, type, &(c->unpack)); /* src */
668	}
669	}
670	}
671	#endif
672
673	tl->width = width;
674	tl->height = height;
675	tl->depth = 1;
676	tl->format = format;
677	tl->internalFormat = internalFormat;
678	crStateTextureInitTextureFormat(tl, internalFormat);
679	tl->border = border;
680	tl->type = type;
681	tl->compressed = GL_FALSE;
682	if (width && height)
683	{
684	if (is_distrib)
685	tl->bytesPerPixel = 3; /* only support GL_RGB */
686	else
687	tl->bytesPerPixel = tl->bytes / (width * height);
688	}
689	else
690	tl->bytesPerPixel = 0;
691
692	#ifdef CR_SGIS_generate_mipmap
693	if (level == tobj->baseLevel && tobj->generateMipmap) {
694	generate_mipmap(tobj, target);
695	}
696	else {
697	tl->generateMipmap = GL_FALSE;
698	}
699	#endif
700
701	/* XXX may need to do some fine-tuning here for proxy textures */
702	DIRTY(tobj->dirty, g->neg_bitid);
703	DIRTY(tobj->imageBit, g->neg_bitid);
704	DIRTY(tl->dirty, g->neg_bitid);
705	DIRTY(tb->dirty, g->neg_bitid);
706	}
707
708
709	#if defined( CR_OPENGL_VERSION_1_2 ) \|\| defined( GL_EXT_texture3D )
710	void STATE_APIENTRY
711	crStateTexImage3D(GLenum target, GLint level,
712	GLint internalFormat,
713	GLsizei width, GLsizei height,
714	GLsizei depth, GLint border,
715	GLenum format, GLenum type, const GLvoid * pixels)
716	{
717	CRContext *g = GetCurrentContext();
718	CRTextureState *t = &(g->texture);
719	CRClientState *c = &(g->client);
720	CRTextureObj *tobj = NULL;
721	CRTextureLevel *tl = NULL;
722	CRStateBits *sb = GetCurrentBits();
723	CRTextureBits *tb = &(sb->texture);
724
725	FLUSH();
726
727	if (ErrorCheckTexImage(3, target, level, width, height, depth, border)) {
728	if (IsProxyTarget(target)) {
729	/* clear all state, but don't generate error */
730	crStateTextureInitTextureObj(g, &(t->proxy3D), 0, GL_TEXTURE_3D);
731	}
732	else {
733	/* error was already recorded */
734	}
735	return;
736	}
737
738	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
739	CRASSERT(tobj);
740	CRASSERT(tl);
741
742	if (IsProxyTarget(target))
743	tl->bytes = 0;
744	else
745	tl->bytes = crTextureSize(format, type, width, height, depth);
746
747	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
748	if (tl->bytes)
749	{
750	/* this is not a proxy texture target so alloc storage */
751	if (tl->img)
752	crFree(tl->img);
753	tl->img = (GLubyte *) crAlloc(tl->bytes);
754	if (!tl->img)
755	{
756	crStateError(__LINE__, __FILE__, GL_OUT_OF_MEMORY,
757	"glTexImage3D out of memory");
758	return;
759	}
760	if (pixels)
761	crPixelCopy3D(width, height, depth, (GLvoid *) (tl->img), format, type,
762	NULL, pixels, format, type, &(c->unpack));
763	}
764	#endif
765
766	tl->internalFormat = internalFormat;
767	tl->border = border;
768	tl->width = width;
769	tl->height = height;
770	tl->depth = depth;
771	tl->format = format;
772	tl->type = type;
773	tl->compressed = GL_FALSE;
774
775	#ifdef CR_SGIS_generate_mipmap
776	if (level == tobj->baseLevel && tobj->generateMipmap) {
777	generate_mipmap(tobj, target);
778	}
779	else {
780	tl->generateMipmap = GL_FALSE;
781	}
782	#endif
783
784	/* XXX may need to do some fine-tuning here for proxy textures */
785	DIRTY(tobj->dirty, g->neg_bitid);
786	DIRTY(tobj->imageBit, g->neg_bitid);
787	DIRTY(tl->dirty, g->neg_bitid);
788	DIRTY(tb->dirty, g->neg_bitid);
789	}
790	#endif /* CR_OPENGL_VERSION_1_2 \|\| GL_EXT_texture3D */
791
792
793	#ifdef GL_EXT_texture3D
794	void STATE_APIENTRY
795	crStateTexImage3DEXT(GLenum target, GLint level,
796	GLenum internalFormat,
797	GLsizei width, GLsizei height, GLsizei depth,
798	GLint border, GLenum format, GLenum type,
799	const GLvoid * pixels)
800	{
801	crStateTexImage3D(target, level, (GLint) internalFormat, width, height,
802	depth, border, format, type, pixels);
803	}
804	#endif /* GL_EXT_texture3D */
805
806
807	void STATE_APIENTRY
808	crStateTexSubImage1D(GLenum target, GLint level, GLint xoffset,
809	GLsizei width, GLenum format,
810	GLenum type, const GLvoid * pixels)
811	{
812	CRContext *g = GetCurrentContext();
813	CRTextureState *t = &(g->texture);
814	CRClientState *c = &(g->client);
815	CRStateBits *sb = GetCurrentBits();
816	CRTextureBits *tb = &(sb->texture);
817	CRTextureUnit *unit = t->unit + t->curTextureUnit;
818	CRTextureObj *tobj = unit->currentTexture1D;
819	CRTextureLevel *tl = tobj->level[0] + level;
820
821	FLUSH();
822
823	if (ErrorCheckTexSubImage(1, target, level, xoffset, 0, 0,
824	width, 1, 1)) {
825	return; /* GL error state already set */
826	}
827
828	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
829	xoffset += tl->border;
830
831	crPixelCopy1D((void ) (tl->img + xoffset tl->bytesPerPixel),
832	tl->format, tl->type,
833	pixels, format, type, width, &(c->unpack));
834	#endif
835
836	#ifdef CR_SGIS_generate_mipmap
837	if (level == tobj->baseLevel && tobj->generateMipmap) {
838	generate_mipmap(tobj, target);
839	}
840	else {
841	tl->generateMipmap = GL_FALSE;
842	}
843	#endif
844
845	DIRTY(tobj->dirty, g->neg_bitid);
846	DIRTY(tobj->imageBit, g->neg_bitid);
847	DIRTY(tl->dirty, g->neg_bitid);
848	DIRTY(tb->dirty, g->neg_bitid);
849	}
850
851
852	void STATE_APIENTRY
853	crStateTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
854	GLsizei width, GLsizei height,
855	GLenum format, GLenum type, const GLvoid * pixels)
856	{
857	CRContext *g = GetCurrentContext();
858	CRClientState *c = &(g->client);
859	CRStateBits *sb = GetCurrentBits();
860	CRTextureBits *tb = &(sb->texture);
861	CRTextureObj *tobj;
862	CRTextureLevel *tl;
863	GLubyte *subimg = NULL;
864	GLubyte *img = NULL;
865	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
866	GLubyte *src;
867	int i;
868	#endif
869
870	FLUSH();
871
872	if (ErrorCheckTexSubImage(2, target, level, xoffset, yoffset, 0,
873	width, height, 1)) {
874	return; /* GL error state already set */
875	}
876
877	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
878	CRASSERT(tobj);
879	CRASSERT(tl);
880
881	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
882	xoffset += tl->border;
883	yoffset += tl->border;
884
885	subimg = (GLubyte *) crAlloc(crImageSize(tl->format, tl->type, width, height));
886
887	crPixelCopy2D(width, height, subimg, tl->format, tl->type, NULL, /* dst */
888	pixels, format, type, &(c->unpack)); /* src */
889
890	img = tl->img +
891	xoffset * tl->bytesPerPixel + yoffset * tl->width * tl->bytesPerPixel;
892
893	src = subimg;
894
895	/* Copy the data into the texture */
896	for (i = 0; i < height; i++)
897	{
898	crMemcpy(img, src, tl->bytesPerPixel * width);
899	img += tl->width * tl->bytesPerPixel;
900	src += width * tl->bytesPerPixel;
901	}
902
903	crFree(subimg);
904	#endif
905
906	#ifdef CR_SGIS_generate_mipmap
907	if (level == tobj->baseLevel && tobj->generateMipmap) {
908	generate_mipmap(tobj, target);
909	}
910	else {
911	tl->generateMipmap = GL_FALSE;
912	}
913	#endif
914
915	DIRTY(tobj->dirty, g->neg_bitid);
916	DIRTY(tobj->imageBit, g->neg_bitid);
917	DIRTY(tl->dirty, g->neg_bitid);
918	DIRTY(tb->dirty, g->neg_bitid);
919	}
920
921	#if defined( CR_OPENGL_VERSION_1_2 )
922	void STATE_APIENTRY
923	crStateTexSubImage3D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
924	GLint zoffset, GLsizei width, GLsizei height,
925	GLsizei depth, GLenum format, GLenum type,
926	const GLvoid * pixels)
927	{
928	CRContext *g = GetCurrentContext();
929	CRTextureState *t = &(g->texture);
930	CRClientState *c = &(g->client);
931	CRStateBits *sb = GetCurrentBits();
932	CRTextureBits *tb = &(sb->texture);
933	CRTextureUnit *unit = t->unit + t->curTextureUnit;
934	CRTextureObj *tobj = unit->currentTexture3D;
935	CRTextureLevel *tl = tobj->level[0] + level;
936	GLubyte *subimg = NULL;
937	GLubyte *img = NULL;
938	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
939	GLubyte *src;
940	int i;
941	#endif
942
943	FLUSH();
944
945	if (ErrorCheckTexSubImage(3, target, level, xoffset, yoffset, zoffset,
946	width, height, depth)) {
947	return; /* GL error state already set */
948	}
949
950	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
951	xoffset += tl->border;
952	yoffset += tl->border;
953	zoffset += tl->border;
954
955	subimg =
956	(GLubyte *)
957	crAlloc(crTextureSize(tl->format, tl->type, width, height, depth));
958
959	crPixelCopy3D(width, height, depth, subimg, tl->format, tl->type, NULL,
960	pixels, format, type, &(c->unpack));
961
962	img = tl->img + xoffset * tl->bytesPerPixel +
963	yoffset * tl->width * tl->bytesPerPixel +
964	zoffset * tl->width * tl->height * tl->bytesPerPixel;
965
966	src = subimg;
967
968	/* Copy the data into the texture */
969	for (i = 0; i < depth; i++)
970	{
971	crMemcpy(img, src, tl->bytesPerPixel * width * height);
972	img += tl->width * tl->height * tl->bytesPerPixel;
973	src += width * height * tl->bytesPerPixel;
974	}
975
976	crFree(subimg);
977	#endif
978
979	#ifdef CR_SGIS_generate_mipmap
980	if (level == tobj->baseLevel && tobj->generateMipmap) {
981	generate_mipmap(tobj, target);
982	}
983	else {
984	tl->generateMipmap = GL_FALSE;
985	}
986	#endif
987
988	DIRTY(tobj->dirty, g->neg_bitid);
989	DIRTY(tobj->imageBit, g->neg_bitid);
990	DIRTY(tl->dirty, g->neg_bitid);
991	DIRTY(tb->dirty, g->neg_bitid);
992	}
993	#endif /* CR_OPENGL_VERSION_1_2 \|\| GL_EXT_texture3D */
994
995
996	void STATE_APIENTRY
997	crStateCompressedTexImage1DARB(GLenum target, GLint level,
998	GLenum internalFormat, GLsizei width,
999	GLint border, GLsizei imageSize,
1000	const GLvoid * data)
1001	{
1002	CRContext *g = GetCurrentContext();
1003	CRTextureState *t = &(g->texture);
1004	CRTextureObj *tobj;
1005	CRTextureLevel *tl;
1006	CRStateBits *sb = GetCurrentBits();
1007	CRTextureBits *tb = &(sb->texture);
1008
1009	FLUSH();
1010
1011	if (ErrorCheckTexImage(1, target, level, width, 1, 1, border)) {
1012	if (IsProxyTarget(target)) {
1013	/* clear all state, but don't generate error */
1014	crStateTextureInitTextureObj(g, &(t->proxy1D), 0, GL_TEXTURE_1D);
1015	}
1016	else {
1017	/* error was already recorded */
1018	}
1019	return;
1020	}
1021
1022	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
1023	CRASSERT(tobj);
1024	CRASSERT(tl);
1025
1026	if (IsProxyTarget(target))
1027	tl->bytes = 0;
1028	else
1029	tl->bytes = imageSize;
1030
1031	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1032	if (tl->bytes)
1033	{
1034	/* this is not a proxy texture target so alloc storage */
1035	if (tl->img)
1036	crFree(tl->img);
1037	tl->img = (GLubyte *) crAlloc(tl->bytes);
1038	if (!tl->img)
1039	{
1040	crStateError(__LINE__, __FILE__, GL_OUT_OF_MEMORY,
1041	"glTexImage1D out of memory");
1042	return;
1043	}
1044	if (data)
1045	crMemcpy(tl->img, data, imageSize);
1046	}
1047	#endif
1048
1049	tl->width = width;
1050	tl->height = 1;
1051	tl->depth = 1;
1052	tl->border = border;
1053	tl->format = GL_NONE;
1054	tl->type = GL_NONE;
1055	tl->internalFormat = internalFormat;
1056	crStateTextureInitTextureFormat(tl, internalFormat);
1057	tl->compressed = GL_TRUE;
1058	tl->bytesPerPixel = 0; /* n/a */
1059
1060	#ifdef CR_SGIS_generate_mipmap
1061	if (level == tobj->baseLevel && tobj->generateMipmap) {
1062	generate_mipmap(tobj, target);
1063	}
1064	else {
1065	tl->generateMipmap = GL_FALSE;
1066	}
1067	#endif
1068
1069	DIRTY(tobj->dirty, g->neg_bitid);
1070	DIRTY(tobj->imageBit, g->neg_bitid);
1071	DIRTY(tl->dirty, g->neg_bitid);
1072	DIRTY(tb->dirty, g->neg_bitid);
1073	}
1074
1075
1076	void STATE_APIENTRY
1077	crStateCompressedTexImage2DARB(GLenum target, GLint level,
1078	GLenum internalFormat, GLsizei width,
1079	GLsizei height, GLint border,
1080	GLsizei imageSize, const GLvoid * data)
1081	{
1082	CRContext *g = GetCurrentContext();
1083	CRTextureState *t = &(g->texture);
1084	CRTextureObj *tobj = NULL;
1085	CRTextureLevel *tl = NULL;
1086	CRStateBits *sb = GetCurrentBits();
1087	CRTextureBits *tb = &(sb->texture);
1088
1089	FLUSH();
1090
1091	if (ErrorCheckTexImage(2, target, level, width, height, 1, border)) {
1092	if (IsProxyTarget(target)) {
1093	/* clear all state, but don't generate error */
1094	crStateTextureInitTextureObj(g, &(t->proxy2D), 0, GL_TEXTURE_2D);
1095	}
1096	else {
1097	/* error was already recorded */
1098	}
1099	return;
1100	}
1101
1102	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
1103	CRASSERT(tobj);
1104	CRASSERT(tl);
1105
1106	if (IsProxyTarget(target))
1107	tl->bytes = 0;
1108	else
1109	tl->bytes = imageSize;
1110
1111	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1112	if (tl->bytes)
1113	{
1114	/* this is not a proxy texture target so alloc storage */
1115	if (tl->img)
1116	crFree(tl->img);
1117	tl->img = (GLubyte *) crAlloc(tl->bytes);
1118	if (!tl->img)
1119	{
1120	crStateError(__LINE__, __FILE__, GL_OUT_OF_MEMORY,
1121	"glTexImage2D out of memory");
1122	return;
1123	}
1124	if (data)
1125	crMemcpy(tl->img, data, imageSize);
1126	}
1127	#endif
1128
1129	tl->width = width;
1130	tl->height = height;
1131	tl->depth = 1;
1132	tl->border = border;
1133	tl->format = GL_NONE;
1134	tl->type = GL_NONE;
1135	tl->internalFormat = internalFormat;
1136	crStateTextureInitTextureFormat(tl, internalFormat);
1137	tl->compressed = GL_TRUE;
1138	tl->bytesPerPixel = 0; /* n/a */
1139
1140	#ifdef CR_SGIS_generate_mipmap
1141	if (level == tobj->baseLevel && tobj->generateMipmap) {
1142	generate_mipmap(tobj, target);
1143	}
1144	else {
1145	tl->generateMipmap = GL_FALSE;
1146	}
1147	#endif
1148
1149	/* XXX may need to do some fine-tuning here for proxy textures */
1150	DIRTY(tobj->dirty, g->neg_bitid);
1151	DIRTY(tobj->imageBit, g->neg_bitid);
1152	DIRTY(tl->dirty, g->neg_bitid);
1153	DIRTY(tb->dirty, g->neg_bitid);
1154	}
1155
1156
1157	void STATE_APIENTRY
1158	crStateCompressedTexImage3DARB(GLenum target, GLint level,
1159	GLenum internalFormat, GLsizei width,
1160	GLsizei height, GLsizei depth, GLint border,
1161	GLsizei imageSize, const GLvoid * data)
1162	{
1163	CRContext *g = GetCurrentContext();
1164	CRTextureState *t = &(g->texture);
1165	CRTextureObj *tobj = NULL;
1166	CRTextureLevel *tl = NULL;
1167	CRStateBits *sb = GetCurrentBits();
1168	CRTextureBits *tb = &(sb->texture);
1169
1170	FLUSH();
1171
1172	if (ErrorCheckTexImage(3, target, level, width, height, depth, border)) {
1173	if (IsProxyTarget(target)) {
1174	/* clear all state, but don't generate error */
1175	crStateTextureInitTextureObj(g, &(t->proxy3D), 0, GL_TEXTURE_3D);
1176	}
1177	else {
1178	/* error was already recorded */
1179	}
1180	return;
1181	}
1182
1183	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
1184	CRASSERT(tobj);
1185	CRASSERT(tl);
1186
1187	if (IsProxyTarget(target))
1188	tl->bytes = 0;
1189	else
1190	tl->bytes = imageSize;
1191
1192	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1193	if (tl->bytes)
1194	{
1195	/* this is not a proxy texture target so alloc storage */
1196	if (tl->img)
1197	crFree(tl->img);
1198	tl->img = (GLubyte *) crAlloc(tl->bytes);
1199	if (!tl->img)
1200	{
1201	crStateError(__LINE__, __FILE__, GL_OUT_OF_MEMORY,
1202	"glCompressedTexImage3D out of memory");
1203	return;
1204	}
1205	if (data)
1206	crMemcpy(tl->img, data, imageSize);
1207	}
1208	#endif
1209
1210	tl->width = width;
1211	tl->height = height;
1212	tl->depth = depth;
1213	tl->border = border;
1214	tl->format = GL_NONE;
1215	tl->type = GL_NONE;
1216	tl->internalFormat = internalFormat;
1217	crStateTextureInitTextureFormat(tl, internalFormat);
1218	tl->compressed = GL_TRUE;
1219	tl->bytesPerPixel = 0; /* n/a */
1220
1221	#ifdef CR_SGIS_generate_mipmap
1222	if (level == tobj->baseLevel && tobj->generateMipmap) {
1223	generate_mipmap(tobj, target);
1224	}
1225	else {
1226	tl->generateMipmap = GL_FALSE;
1227	}
1228	#endif
1229
1230	/* XXX may need to do some fine-tuning here for proxy textures */
1231	DIRTY(tobj->dirty, g->neg_bitid);
1232	DIRTY(tobj->imageBit, g->neg_bitid);
1233	DIRTY(tl->dirty, g->neg_bitid);
1234	DIRTY(tb->dirty, g->neg_bitid);
1235	}
1236
1237
1238	void STATE_APIENTRY
1239	crStateCompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
1240	GLsizei width, GLenum format,
1241	GLsizei imageSize, const GLvoid * data)
1242	{
1243	CRContext *g = GetCurrentContext();
1244	CRTextureState *t = &(g->texture);
1245	CRStateBits *sb = GetCurrentBits();
1246	CRTextureBits *tb = &(sb->texture);
1247	CRTextureUnit *unit = t->unit + t->curTextureUnit;
1248	CRTextureObj *tobj = unit->currentTexture1D;
1249	CRTextureLevel *tl = tobj->level[0] + level;
1250
1251	FLUSH();
1252
1253	if (ErrorCheckTexSubImage(1, target, level, xoffset, 0, 0, width, 1, 1)) {
1254	return; /* GL error state already set */
1255	}
1256
1257	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1258	xoffset += tl->border;
1259
1260	if (xoffset == 0 && width == tl->width) {
1261	/* just memcpy */
1262	crMemcpy(tl->img, data, imageSize);
1263	}
1264	else {
1265	/* XXX this depends on the exact compression method */
1266	crWarning("Not implemented part crStateCompressedTexSubImage1DARB");
1267	}
1268	#endif
1269
1270	#ifdef CR_SGIS_generate_mipmap
1271	if (level == tobj->baseLevel && tobj->generateMipmap) {
1272	generate_mipmap(tobj, target);
1273	}
1274	else {
1275	tl->generateMipmap = GL_FALSE;
1276	}
1277	#endif
1278
1279	DIRTY(tobj->dirty, g->neg_bitid);
1280	DIRTY(tobj->imageBit, g->neg_bitid);
1281	DIRTY(tl->dirty, g->neg_bitid);
1282	DIRTY(tb->dirty, g->neg_bitid);
1283	}
1284
1285
1286	void STATE_APIENTRY
1287	crStateCompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
1288	GLint yoffset, GLsizei width,
1289	GLsizei height, GLenum format,
1290	GLsizei imageSize, const GLvoid * data)
1291	{
1292	CRContext *g = GetCurrentContext();
1293	CRTextureState *t = &(g->texture);
1294	CRStateBits *sb = GetCurrentBits();
1295	CRTextureBits *tb = &(sb->texture);
1296	CRTextureUnit *unit = t->unit + t->curTextureUnit;
1297	CRTextureObj *tobj = unit->currentTexture1D;
1298	CRTextureLevel *tl = tobj->level[0] + level;
1299
1300	FLUSH();
1301
1302	if (ErrorCheckTexSubImage(2, target, level, xoffset, yoffset, 0,
1303	width, height, 1)) {
1304	return; /* GL error state already set */
1305	}
1306
1307	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1308	xoffset += tl->border;
1309	yoffset += tl->border;
1310
1311	if (xoffset == 0 && width == tl->width
1312	&& yoffset == 0 && height == tl->height)
1313	{
1314	/* just memcpy */
1315	crMemcpy(tl->img, data, imageSize);
1316	}
1317	else {
1318	/* XXX this depends on the exact compression method */
1319	crWarning("Not implemented part crStateCompressedTexSubImage2DARB");
1320	}
1321	#endif
1322
1323	#ifdef CR_SGIS_generate_mipmap
1324	if (level == tobj->baseLevel && tobj->generateMipmap) {
1325	generate_mipmap(tobj, target);
1326	}
1327	else {
1328	tl->generateMipmap = GL_FALSE;
1329	}
1330	#endif
1331
1332	DIRTY(tobj->dirty, g->neg_bitid);
1333	DIRTY(tobj->imageBit, g->neg_bitid);
1334	DIRTY(tl->dirty, g->neg_bitid);
1335	DIRTY(tb->dirty, g->neg_bitid);
1336	}
1337
1338
1339	void STATE_APIENTRY
1340	crStateCompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
1341	GLint yoffset, GLint zoffset, GLsizei width,
1342	GLsizei height, GLsizei depth,
1343	GLenum format, GLsizei imageSize,
1344	const GLvoid * data)
1345	{
1346	CRContext *g = GetCurrentContext();
1347	CRTextureState *t = &(g->texture);
1348	CRStateBits *sb = GetCurrentBits();
1349	CRTextureBits *tb = &(sb->texture);
1350	CRTextureUnit *unit = t->unit + t->curTextureUnit;
1351	CRTextureObj *tobj = unit->currentTexture1D;
1352	CRTextureLevel *tl = tobj->level[0] + level;
1353
1354	FLUSH();
1355
1356	if (ErrorCheckTexSubImage(3, target, level, xoffset, yoffset, zoffset,
1357	width, height, depth)) {
1358	return; /* GL error state already set */
1359	}
1360
1361	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1362	xoffset += tl->border;
1363	yoffset += tl->border;
1364	zoffset += tl->border;
1365
1366	if (xoffset == 0 && width == tl->width &&
1367	yoffset == 0 && height == tl->height &&
1368	zoffset == 0 && depth == tl->depth) {
1369	/* just memcpy */
1370	crMemcpy(tl->img, data, imageSize);
1371	}
1372	else {
1373	/* XXX this depends on the exact compression method */
1374	crWarning("Not implemented part crStateCompressedTexSubImage3DARB");
1375	}
1376	#endif
1377
1378	#ifdef CR_SGIS_generate_mipmap
1379	if (level == tobj->baseLevel && tobj->generateMipmap) {
1380	generate_mipmap(tobj, target);
1381	}
1382	else {
1383	tl->generateMipmap = GL_FALSE;
1384	}
1385	#endif
1386
1387	DIRTY(tobj->dirty, g->neg_bitid);
1388	DIRTY(tobj->imageBit, g->neg_bitid);
1389	DIRTY(tl->dirty, g->neg_bitid);
1390	DIRTY(tb->dirty, g->neg_bitid);
1391	}
1392
1393
1394	void STATE_APIENTRY
1395	crStateGetCompressedTexImageARB(GLenum target, GLint level, GLvoid * img)
1396	{
1397	CRContext *g = GetCurrentContext();
1398	CRTextureObj *tobj;
1399	CRTextureLevel *tl;
1400
1401	if (g->current.inBeginEnd)
1402	{
1403	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
1404	"glGetCompressedTexImage called in begin/end");
1405	return;
1406	}
1407
1408	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
1409	if (!tobj \|\| !tl) {
1410	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
1411	"glGetCompressedTexImage(invalid target or level)");
1412	return;
1413	}
1414
1415	if (!tl->compressed) {
1416	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
1417	"glGetCompressedTexImage(not a compressed texture)");
1418	return;
1419	}
1420
1421	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1422	crMemcpy(img, tl->img, tl->bytes);
1423	#else
1424	diff_api.GetCompressedTexImageARB(target, level, img);
1425	#endif
1426	}
1427
1428
1429	void STATE_APIENTRY
1430	crStateGetTexImage(GLenum target, GLint level, GLenum format,
1431	GLenum type, GLvoid * pixels)
1432	{
1433	CRContext *g = GetCurrentContext();
1434	CRClientState *c = &(g->client);
1435	CRTextureObj *tobj;
1436	CRTextureLevel *tl;
1437
1438	if (g->current.inBeginEnd)
1439	{
1440	crStateError(__LINE__, __FILE__, GL_INVALID_OPERATION,
1441	"glGetTexImage called in begin/end");
1442	return;
1443	}
1444
1445	crStateGetTextureObjectAndImage(g, target, level, &tobj, &tl);
1446	if (!tobj \|\| !tl) {
1447	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
1448	"glGetTexImage(invalid target or level)");
1449	return;
1450	}
1451
1452	if (tl->compressed) {
1453	crWarning("glGetTexImage cannot decompress a compressed texture!");
1454	return;
1455	}
1456
1457	switch (format)
1458	{
1459	case GL_RED:
1460	case GL_GREEN:
1461	case GL_BLUE:
1462	case GL_ALPHA:
1463	case GL_RGB:
1464	case GL_RGBA:
1465	case GL_LUMINANCE:
1466	case GL_LUMINANCE_ALPHA:
1467	break;
1468	default:
1469	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
1470	"glGetTexImage called with bogus format: %d", format);
1471	return;
1472	}
1473
1474	switch (type)
1475	{
1476	case GL_UNSIGNED_BYTE:
1477	case GL_BYTE:
1478	case GL_UNSIGNED_SHORT:
1479	case GL_SHORT:
1480	case GL_UNSIGNED_INT:
1481	case GL_INT:
1482	case GL_FLOAT:
1483	break;
1484	default:
1485	crStateError(__LINE__, __FILE__, GL_INVALID_ENUM,
1486	"glGetTexImage called with bogus type: %d", type);
1487	return;
1488	}
1489
1490	#ifndef CR_STATE_NO_TEXTURE_IMAGE_STORE
1491	#ifdef CR_OPENGL_VERSION_1_2
1492	if (target == GL_TEXTURE_3D)
1493	{
1494	crPixelCopy3D(tl->width, tl->height, tl->depth, (GLvoid *) pixels, format,
1495	type, NULL, (tl->img), format, type, &(c->pack));
1496	}
1497	else
1498	#endif
1499	if ((target == GL_TEXTURE_1D) \|\| (target == GL_TEXTURE_2D))
1500	{
1501	crPixelCopy2D(tl->width, tl->height, (GLvoid ) pixels, format, type, NULL, / dst */
1502	tl->img, format, type, &(c->pack)); /* src */
1503	}
1504	#else
1505	diff_api.GetTexImage(target, level, format, type, pixels);
1506	#endif
1507	}

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source: vbox/trunk/src/VBox/GuestHost/OpenGL/state_tracker/state_teximage.c@ 16970

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