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mesa: Also report the number of renderbuffer alpha bits for GL_LUMINANCE_ALPHA.
[mesa.git] / src / mesa / main / texstore.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.5
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008-2009 VMware, Inc.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26 /*
27 * Authors:
28 * Brian Paul
29 */
30
31 /**
32 * The GL texture image functions in teximage.c basically just do
33 * error checking and data structure allocation. They in turn call
34 * device driver functions which actually copy/convert/store the user's
35 * texture image data.
36 *
37 * However, most device drivers will be able to use the fallback functions
38 * in this file. That is, most drivers will have the following bit of
39 * code:
40 * ctx->Driver.TexImage1D = _mesa_store_teximage1d;
41 * ctx->Driver.TexImage2D = _mesa_store_teximage2d;
42 * ctx->Driver.TexImage3D = _mesa_store_teximage3d;
43 * etc...
44 *
45 * Texture image processing is actually kind of complicated. We have to do:
46 * Format/type conversions
47 * pixel unpacking
48 * pixel transfer (scale, bais, lookup, etc)
49 *
50 * These functions can handle most everything, including processing full
51 * images and sub-images.
52 */
53
54
55 #include "glheader.h"
56 #include "bufferobj.h"
57 #include "colormac.h"
58 #include "image.h"
59 #include "macros.h"
60 #include "mipmap.h"
61 #include "pack.h"
62 #include "imports.h"
63 #include "pack.h"
64 #include "texcompress.h"
65 #include "texcompress_fxt1.h"
66 #include "texcompress_s3tc.h"
67 #include "teximage.h"
68 #include "texstore.h"
69 #include "enums.h"
70
71
72 enum {
73 ZERO = 4,
74 ONE = 5
75 };
76
77
78 /**
79 * Texture image storage function.
80 */
81 typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS);
82
83
84 /**
85 * Return GL_TRUE if the given image format is one that be converted
86 * to another format by swizzling.
87 */
88 static GLboolean
89 can_swizzle(GLenum logicalBaseFormat)
90 {
91 switch (logicalBaseFormat) {
92 case GL_RGBA:
93 case GL_RGB:
94 case GL_LUMINANCE_ALPHA:
95 case GL_INTENSITY:
96 case GL_ALPHA:
97 case GL_LUMINANCE:
98 case GL_RED:
99 case GL_GREEN:
100 case GL_BLUE:
101 case GL_BGR:
102 case GL_BGRA:
103 case GL_ABGR_EXT:
104 case GL_RG:
105 return GL_TRUE;
106 default:
107 return GL_FALSE;
108 }
109 }
110
111
112
113 enum {
114 IDX_LUMINANCE = 0,
115 IDX_ALPHA,
116 IDX_INTENSITY,
117 IDX_LUMINANCE_ALPHA,
118 IDX_RGB,
119 IDX_RGBA,
120 IDX_RED,
121 IDX_GREEN,
122 IDX_BLUE,
123 IDX_BGR,
124 IDX_BGRA,
125 IDX_ABGR,
126 IDX_RG,
127 MAX_IDX
128 };
129
130 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
131 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
132 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
133 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
134
135
136 static const struct {
137 GLubyte format_idx;
138 GLubyte to_rgba[6];
139 GLubyte from_rgba[6];
140 } mappings[MAX_IDX] =
141 {
142 {
143 IDX_LUMINANCE,
144 MAP4(0,0,0,ONE),
145 MAP1(0)
146 },
147
148 {
149 IDX_ALPHA,
150 MAP4(ZERO, ZERO, ZERO, 0),
151 MAP1(3)
152 },
153
154 {
155 IDX_INTENSITY,
156 MAP4(0, 0, 0, 0),
157 MAP1(0),
158 },
159
160 {
161 IDX_LUMINANCE_ALPHA,
162 MAP4(0,0,0,1),
163 MAP2(0,3)
164 },
165
166 {
167 IDX_RGB,
168 MAP4(0,1,2,ONE),
169 MAP3(0,1,2)
170 },
171
172 {
173 IDX_RGBA,
174 MAP4(0,1,2,3),
175 MAP4(0,1,2,3),
176 },
177
178 {
179 IDX_RED,
180 MAP4(0, ZERO, ZERO, ONE),
181 MAP1(0),
182 },
183
184 {
185 IDX_GREEN,
186 MAP4(ZERO, 0, ZERO, ONE),
187 MAP1(1),
188 },
189
190 {
191 IDX_BLUE,
192 MAP4(ZERO, ZERO, 0, ONE),
193 MAP1(2),
194 },
195
196 {
197 IDX_BGR,
198 MAP4(2,1,0,ONE),
199 MAP3(2,1,0)
200 },
201
202 {
203 IDX_BGRA,
204 MAP4(2,1,0,3),
205 MAP4(2,1,0,3)
206 },
207
208 {
209 IDX_ABGR,
210 MAP4(3,2,1,0),
211 MAP4(3,2,1,0)
212 },
213
214 {
215 IDX_RG,
216 MAP4(0, 1, ZERO, ONE),
217 MAP2(0, 1)
218 },
219 };
220
221
222
223 /**
224 * Convert a GL image format enum to an IDX_* value (see above).
225 */
226 static int
227 get_map_idx(GLenum value)
228 {
229 switch (value) {
230 case GL_LUMINANCE: return IDX_LUMINANCE;
231 case GL_ALPHA: return IDX_ALPHA;
232 case GL_INTENSITY: return IDX_INTENSITY;
233 case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA;
234 case GL_RGB: return IDX_RGB;
235 case GL_RGBA: return IDX_RGBA;
236 case GL_RED: return IDX_RED;
237 case GL_GREEN: return IDX_GREEN;
238 case GL_BLUE: return IDX_BLUE;
239 case GL_BGR: return IDX_BGR;
240 case GL_BGRA: return IDX_BGRA;
241 case GL_ABGR_EXT: return IDX_ABGR;
242 case GL_RG: return IDX_RG;
243 default:
244 _mesa_problem(NULL, "Unexpected inFormat");
245 return 0;
246 }
247 }
248
249
250 /**
251 * When promoting texture formats (see below) we need to compute the
252 * mapping of dest components back to source components.
253 * This function does that.
254 * \param inFormat the incoming format of the texture
255 * \param outFormat the final texture format
256 * \return map[6] a full 6-component map
257 */
258 static void
259 compute_component_mapping(GLenum inFormat, GLenum outFormat,
260 GLubyte *map)
261 {
262 const int inFmt = get_map_idx(inFormat);
263 const int outFmt = get_map_idx(outFormat);
264 const GLubyte *in2rgba = mappings[inFmt].to_rgba;
265 const GLubyte *rgba2out = mappings[outFmt].from_rgba;
266 int i;
267
268 for (i = 0; i < 4; i++)
269 map[i] = in2rgba[rgba2out[i]];
270
271 map[ZERO] = ZERO;
272 map[ONE] = ONE;
273
274 #if 0
275 printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
276 inFormat, _mesa_lookup_enum_by_nr(inFormat),
277 outFormat, _mesa_lookup_enum_by_nr(outFormat),
278 map[0],
279 map[1],
280 map[2],
281 map[3],
282 map[4],
283 map[5]);
284 #endif
285 }
286
287
288 /**
289 * Make a temporary (color) texture image with GLfloat components.
290 * Apply all needed pixel unpacking and pixel transfer operations.
291 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
292 * Suppose the user specifies GL_LUMINANCE as the internal texture format
293 * but the graphics hardware doesn't support luminance textures. So, we might
294 * use an RGB hardware format instead.
295 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
296 *
297 * \param ctx the rendering context
298 * \param dims image dimensions: 1, 2 or 3
299 * \param logicalBaseFormat basic texture derived from the user's
300 * internal texture format value
301 * \param textureBaseFormat the actual basic format of the texture
302 * \param srcWidth source image width
303 * \param srcHeight source image height
304 * \param srcDepth source image depth
305 * \param srcFormat source image format
306 * \param srcType source image type
307 * \param srcAddr source image address
308 * \param srcPacking source image pixel packing
309 * \return resulting image with format = textureBaseFormat and type = GLfloat.
310 */
311 static GLfloat *
312 make_temp_float_image(struct gl_context *ctx, GLuint dims,
313 GLenum logicalBaseFormat,
314 GLenum textureBaseFormat,
315 GLint srcWidth, GLint srcHeight, GLint srcDepth,
316 GLenum srcFormat, GLenum srcType,
317 const GLvoid *srcAddr,
318 const struct gl_pixelstore_attrib *srcPacking,
319 GLbitfield transferOps)
320 {
321 GLfloat *tempImage;
322 const GLint components = _mesa_components_in_format(logicalBaseFormat);
323 const GLint srcStride =
324 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
325 GLfloat *dst;
326 GLint img, row;
327
328 ASSERT(dims >= 1 && dims <= 3);
329
330 ASSERT(logicalBaseFormat == GL_RGBA ||
331 logicalBaseFormat == GL_RGB ||
332 logicalBaseFormat == GL_RG ||
333 logicalBaseFormat == GL_RED ||
334 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
335 logicalBaseFormat == GL_LUMINANCE ||
336 logicalBaseFormat == GL_ALPHA ||
337 logicalBaseFormat == GL_INTENSITY ||
338 logicalBaseFormat == GL_COLOR_INDEX ||
339 logicalBaseFormat == GL_DEPTH_COMPONENT);
340
341 ASSERT(textureBaseFormat == GL_RGBA ||
342 textureBaseFormat == GL_RGB ||
343 textureBaseFormat == GL_RG ||
344 textureBaseFormat == GL_RED ||
345 textureBaseFormat == GL_LUMINANCE_ALPHA ||
346 textureBaseFormat == GL_LUMINANCE ||
347 textureBaseFormat == GL_ALPHA ||
348 textureBaseFormat == GL_INTENSITY ||
349 textureBaseFormat == GL_COLOR_INDEX ||
350 textureBaseFormat == GL_DEPTH_COMPONENT);
351
352 tempImage = (GLfloat *) malloc(srcWidth * srcHeight * srcDepth
353 * components * sizeof(GLfloat));
354 if (!tempImage)
355 return NULL;
356
357 dst = tempImage;
358 for (img = 0; img < srcDepth; img++) {
359 const GLubyte *src
360 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
361 srcWidth, srcHeight,
362 srcFormat, srcType,
363 img, 0, 0);
364 for (row = 0; row < srcHeight; row++) {
365 _mesa_unpack_color_span_float(ctx, srcWidth, logicalBaseFormat,
366 dst, srcFormat, srcType, src,
367 srcPacking, transferOps);
368 dst += srcWidth * components;
369 src += srcStride;
370 }
371 }
372
373 if (logicalBaseFormat != textureBaseFormat) {
374 /* more work */
375 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
376 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
377 GLfloat *newImage;
378 GLint i, n;
379 GLubyte map[6];
380
381 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
382 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
383 textureBaseFormat == GL_LUMINANCE_ALPHA);
384
385 /* The actual texture format should have at least as many components
386 * as the logical texture format.
387 */
388 ASSERT(texComponents >= logComponents);
389
390 newImage = (GLfloat *) malloc(srcWidth * srcHeight * srcDepth
391 * texComponents * sizeof(GLfloat));
392 if (!newImage) {
393 free(tempImage);
394 return NULL;
395 }
396
397 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
398
399 n = srcWidth * srcHeight * srcDepth;
400 for (i = 0; i < n; i++) {
401 GLint k;
402 for (k = 0; k < texComponents; k++) {
403 GLint j = map[k];
404 if (j == ZERO)
405 newImage[i * texComponents + k] = 0.0F;
406 else if (j == ONE)
407 newImage[i * texComponents + k] = 1.0F;
408 else
409 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
410 }
411 }
412
413 free(tempImage);
414 tempImage = newImage;
415 }
416
417 return tempImage;
418 }
419
420
421 /**
422 * Make temporary image with uint pixel values. Used for unsigned
423 * integer-valued textures.
424 */
425 static GLuint *
426 make_temp_uint_image(struct gl_context *ctx, GLuint dims,
427 GLenum logicalBaseFormat,
428 GLenum textureBaseFormat,
429 GLint srcWidth, GLint srcHeight, GLint srcDepth,
430 GLenum srcFormat, GLenum srcType,
431 const GLvoid *srcAddr,
432 const struct gl_pixelstore_attrib *srcPacking)
433 {
434 GLuint *tempImage;
435 const GLint components = _mesa_components_in_format(logicalBaseFormat);
436 const GLint srcStride =
437 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
438 GLuint *dst;
439 GLint img, row;
440
441 ASSERT(dims >= 1 && dims <= 3);
442
443 ASSERT(logicalBaseFormat == GL_RGBA ||
444 logicalBaseFormat == GL_RGB ||
445 logicalBaseFormat == GL_RG ||
446 logicalBaseFormat == GL_RED ||
447 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
448 logicalBaseFormat == GL_LUMINANCE ||
449 logicalBaseFormat == GL_INTENSITY ||
450 logicalBaseFormat == GL_ALPHA);
451
452 ASSERT(textureBaseFormat == GL_RGBA ||
453 textureBaseFormat == GL_RGB ||
454 textureBaseFormat == GL_RG ||
455 textureBaseFormat == GL_RED ||
456 textureBaseFormat == GL_LUMINANCE_ALPHA ||
457 textureBaseFormat == GL_LUMINANCE ||
458 textureBaseFormat == GL_ALPHA);
459
460 tempImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth
461 * components * sizeof(GLuint));
462 if (!tempImage)
463 return NULL;
464
465 dst = tempImage;
466 for (img = 0; img < srcDepth; img++) {
467 const GLubyte *src
468 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
469 srcWidth, srcHeight,
470 srcFormat, srcType,
471 img, 0, 0);
472 for (row = 0; row < srcHeight; row++) {
473 _mesa_unpack_color_span_uint(ctx, srcWidth, logicalBaseFormat,
474 dst, srcFormat, srcType, src,
475 srcPacking);
476 dst += srcWidth * components;
477 src += srcStride;
478 }
479 }
480
481 if (logicalBaseFormat != textureBaseFormat) {
482 /* more work */
483 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
484 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
485 GLuint *newImage;
486 GLint i, n;
487 GLubyte map[6];
488
489 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
490 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
491 textureBaseFormat == GL_LUMINANCE_ALPHA);
492
493 /* The actual texture format should have at least as many components
494 * as the logical texture format.
495 */
496 ASSERT(texComponents >= logComponents);
497
498 newImage = (GLuint *) malloc(srcWidth * srcHeight * srcDepth
499 * texComponents * sizeof(GLuint));
500 if (!newImage) {
501 free(tempImage);
502 return NULL;
503 }
504
505 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
506
507 n = srcWidth * srcHeight * srcDepth;
508 for (i = 0; i < n; i++) {
509 GLint k;
510 for (k = 0; k < texComponents; k++) {
511 GLint j = map[k];
512 if (j == ZERO)
513 newImage[i * texComponents + k] = 0.0F;
514 else if (j == ONE)
515 newImage[i * texComponents + k] = 1.0F;
516 else
517 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
518 }
519 }
520
521 free(tempImage);
522 tempImage = newImage;
523 }
524
525 return tempImage;
526 }
527
528
529
530 /**
531 * Make a temporary (color) texture image with GLchan components.
532 * Apply all needed pixel unpacking and pixel transfer operations.
533 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
534 * Suppose the user specifies GL_LUMINANCE as the internal texture format
535 * but the graphics hardware doesn't support luminance textures. So, we might
536 * use an RGB hardware format instead.
537 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
538 *
539 * \param ctx the rendering context
540 * \param dims image dimensions: 1, 2 or 3
541 * \param logicalBaseFormat basic texture derived from the user's
542 * internal texture format value
543 * \param textureBaseFormat the actual basic format of the texture
544 * \param srcWidth source image width
545 * \param srcHeight source image height
546 * \param srcDepth source image depth
547 * \param srcFormat source image format
548 * \param srcType source image type
549 * \param srcAddr source image address
550 * \param srcPacking source image pixel packing
551 * \return resulting image with format = textureBaseFormat and type = GLchan.
552 */
553 GLchan *
554 _mesa_make_temp_chan_image(struct gl_context *ctx, GLuint dims,
555 GLenum logicalBaseFormat,
556 GLenum textureBaseFormat,
557 GLint srcWidth, GLint srcHeight, GLint srcDepth,
558 GLenum srcFormat, GLenum srcType,
559 const GLvoid *srcAddr,
560 const struct gl_pixelstore_attrib *srcPacking)
561 {
562 GLuint transferOps = ctx->_ImageTransferState;
563 const GLint components = _mesa_components_in_format(logicalBaseFormat);
564 GLint img, row;
565 GLchan *tempImage, *dst;
566
567 ASSERT(dims >= 1 && dims <= 3);
568
569 ASSERT(logicalBaseFormat == GL_RGBA ||
570 logicalBaseFormat == GL_RGB ||
571 logicalBaseFormat == GL_RG ||
572 logicalBaseFormat == GL_RED ||
573 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
574 logicalBaseFormat == GL_LUMINANCE ||
575 logicalBaseFormat == GL_ALPHA ||
576 logicalBaseFormat == GL_INTENSITY);
577
578 ASSERT(textureBaseFormat == GL_RGBA ||
579 textureBaseFormat == GL_RGB ||
580 textureBaseFormat == GL_RG ||
581 textureBaseFormat == GL_RED ||
582 textureBaseFormat == GL_LUMINANCE_ALPHA ||
583 textureBaseFormat == GL_LUMINANCE ||
584 textureBaseFormat == GL_ALPHA ||
585 textureBaseFormat == GL_INTENSITY);
586
587 /* unpack and transfer the source image */
588 tempImage = (GLchan *) malloc(srcWidth * srcHeight * srcDepth
589 * components * sizeof(GLchan));
590 if (!tempImage) {
591 return NULL;
592 }
593
594 dst = tempImage;
595 for (img = 0; img < srcDepth; img++) {
596 const GLint srcStride =
597 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
598 const GLubyte *src =
599 (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
600 srcWidth, srcHeight,
601 srcFormat, srcType,
602 img, 0, 0);
603 for (row = 0; row < srcHeight; row++) {
604 _mesa_unpack_color_span_chan(ctx, srcWidth, logicalBaseFormat, dst,
605 srcFormat, srcType, src, srcPacking,
606 transferOps);
607 dst += srcWidth * components;
608 src += srcStride;
609 }
610 }
611
612 if (logicalBaseFormat != textureBaseFormat) {
613 /* one more conversion step */
614 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
615 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
616 GLchan *newImage;
617 GLint i, n;
618 GLubyte map[6];
619
620 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
621 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
622 textureBaseFormat == GL_LUMINANCE_ALPHA);
623
624 /* The actual texture format should have at least as many components
625 * as the logical texture format.
626 */
627 ASSERT(texComponents >= logComponents);
628
629 newImage = (GLchan *) malloc(srcWidth * srcHeight * srcDepth
630 * texComponents * sizeof(GLchan));
631 if (!newImage) {
632 free(tempImage);
633 return NULL;
634 }
635
636 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
637
638 n = srcWidth * srcHeight * srcDepth;
639 for (i = 0; i < n; i++) {
640 GLint k;
641 for (k = 0; k < texComponents; k++) {
642 GLint j = map[k];
643 if (j == ZERO)
644 newImage[i * texComponents + k] = 0;
645 else if (j == ONE)
646 newImage[i * texComponents + k] = CHAN_MAX;
647 else
648 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
649 }
650 }
651
652 free(tempImage);
653 tempImage = newImage;
654 }
655
656 return tempImage;
657 }
658
659
660 /**
661 * Copy GLubyte pixels from <src> to <dst> with swizzling.
662 * \param dst destination pixels
663 * \param dstComponents number of color components in destination pixels
664 * \param src source pixels
665 * \param srcComponents number of color components in source pixels
666 * \param map the swizzle mapping. map[X] says where to find the X component
667 * in the source image's pixels. For example, if the source image
668 * is GL_BGRA and X = red, map[0] yields 2.
669 * \param count number of pixels to copy/swizzle.
670 */
671 static void
672 swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src,
673 GLuint srcComponents, const GLubyte *map, GLuint count)
674 {
675 #define SWZ_CPY(dst, src, count, dstComps, srcComps) \
676 do { \
677 GLuint i; \
678 for (i = 0; i < count; i++) { \
679 GLuint j; \
680 if (srcComps == 4) { \
681 COPY_4UBV(tmp, src); \
682 } \
683 else { \
684 for (j = 0; j < srcComps; j++) { \
685 tmp[j] = src[j]; \
686 } \
687 } \
688 src += srcComps; \
689 for (j = 0; j < dstComps; j++) { \
690 dst[j] = tmp[map[j]]; \
691 } \
692 dst += dstComps; \
693 } \
694 } while (0)
695
696 GLubyte tmp[6];
697
698 tmp[ZERO] = 0x0;
699 tmp[ONE] = 0xff;
700
701 ASSERT(srcComponents <= 4);
702 ASSERT(dstComponents <= 4);
703
704 switch (dstComponents) {
705 case 4:
706 switch (srcComponents) {
707 case 4:
708 SWZ_CPY(dst, src, count, 4, 4);
709 break;
710 case 3:
711 SWZ_CPY(dst, src, count, 4, 3);
712 break;
713 case 2:
714 SWZ_CPY(dst, src, count, 4, 2);
715 break;
716 case 1:
717 SWZ_CPY(dst, src, count, 4, 1);
718 break;
719 default:
720 ;
721 }
722 break;
723 case 3:
724 switch (srcComponents) {
725 case 4:
726 SWZ_CPY(dst, src, count, 3, 4);
727 break;
728 case 3:
729 SWZ_CPY(dst, src, count, 3, 3);
730 break;
731 case 2:
732 SWZ_CPY(dst, src, count, 3, 2);
733 break;
734 case 1:
735 SWZ_CPY(dst, src, count, 3, 1);
736 break;
737 default:
738 ;
739 }
740 break;
741 case 2:
742 switch (srcComponents) {
743 case 4:
744 SWZ_CPY(dst, src, count, 2, 4);
745 break;
746 case 3:
747 SWZ_CPY(dst, src, count, 2, 3);
748 break;
749 case 2:
750 SWZ_CPY(dst, src, count, 2, 2);
751 break;
752 case 1:
753 SWZ_CPY(dst, src, count, 2, 1);
754 break;
755 default:
756 ;
757 }
758 break;
759 case 1:
760 switch (srcComponents) {
761 case 4:
762 SWZ_CPY(dst, src, count, 1, 4);
763 break;
764 case 3:
765 SWZ_CPY(dst, src, count, 1, 3);
766 break;
767 case 2:
768 SWZ_CPY(dst, src, count, 1, 2);
769 break;
770 case 1:
771 SWZ_CPY(dst, src, count, 1, 1);
772 break;
773 default:
774 ;
775 }
776 break;
777 default:
778 ;
779 }
780 #undef SWZ_CPY
781 }
782
783
784
785 static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
786 static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
787
788
789 /**
790 * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
791 * mapping array depending on endianness.
792 */
793 static const GLubyte *
794 type_mapping( GLenum srcType )
795 {
796 switch (srcType) {
797 case GL_BYTE:
798 case GL_UNSIGNED_BYTE:
799 return map_identity;
800 case GL_UNSIGNED_INT_8_8_8_8:
801 return _mesa_little_endian() ? map_3210 : map_identity;
802 case GL_UNSIGNED_INT_8_8_8_8_REV:
803 return _mesa_little_endian() ? map_identity : map_3210;
804 default:
805 return NULL;
806 }
807 }
808
809
810 /**
811 * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
812 * mapping array depending on pixelstore byte swapping state.
813 */
814 static const GLubyte *
815 byteswap_mapping( GLboolean swapBytes,
816 GLenum srcType )
817 {
818 if (!swapBytes)
819 return map_identity;
820
821 switch (srcType) {
822 case GL_BYTE:
823 case GL_UNSIGNED_BYTE:
824 return map_identity;
825 case GL_UNSIGNED_INT_8_8_8_8:
826 case GL_UNSIGNED_INT_8_8_8_8_REV:
827 return map_3210;
828 default:
829 return NULL;
830 }
831 }
832
833
834
835 /**
836 * Transfer a GLubyte texture image with component swizzling.
837 */
838 static void
839 _mesa_swizzle_ubyte_image(struct gl_context *ctx,
840 GLuint dimensions,
841 GLenum srcFormat,
842 GLenum srcType,
843
844 GLenum baseInternalFormat,
845
846 const GLubyte *rgba2dst,
847 GLuint dstComponents,
848
849 GLvoid *dstAddr,
850 GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
851 GLint dstRowStride,
852 const GLuint *dstImageOffsets,
853
854 GLint srcWidth, GLint srcHeight, GLint srcDepth,
855 const GLvoid *srcAddr,
856 const struct gl_pixelstore_attrib *srcPacking )
857 {
858 GLint srcComponents = _mesa_components_in_format(srcFormat);
859 const GLubyte *srctype2ubyte, *swap;
860 GLubyte map[4], src2base[6], base2rgba[6];
861 GLint i;
862 const GLint srcRowStride =
863 _mesa_image_row_stride(srcPacking, srcWidth,
864 srcFormat, GL_UNSIGNED_BYTE);
865 const GLint srcImageStride
866 = _mesa_image_image_stride(srcPacking, srcWidth, srcHeight, srcFormat,
867 GL_UNSIGNED_BYTE);
868 const GLubyte *srcImage
869 = (const GLubyte *) _mesa_image_address(dimensions, srcPacking, srcAddr,
870 srcWidth, srcHeight, srcFormat,
871 GL_UNSIGNED_BYTE, 0, 0, 0);
872
873 (void) ctx;
874
875 /* Translate from src->baseInternal->GL_RGBA->dst. This will
876 * correctly deal with RGBA->RGB->RGBA conversions where the final
877 * A value must be 0xff regardless of the incoming alpha values.
878 */
879 compute_component_mapping(srcFormat, baseInternalFormat, src2base);
880 compute_component_mapping(baseInternalFormat, GL_RGBA, base2rgba);
881 swap = byteswap_mapping(srcPacking->SwapBytes, srcType);
882 srctype2ubyte = type_mapping(srcType);
883
884
885 for (i = 0; i < 4; i++)
886 map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]];
887
888 /* printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
889
890 if (srcComponents == dstComponents &&
891 srcRowStride == dstRowStride &&
892 srcRowStride == srcWidth * srcComponents &&
893 dimensions < 3) {
894 /* 1 and 2D images only */
895 GLubyte *dstImage = (GLubyte *) dstAddr
896 + dstYoffset * dstRowStride
897 + dstXoffset * dstComponents;
898 swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map,
899 srcWidth * srcHeight);
900 }
901 else {
902 GLint img, row;
903 for (img = 0; img < srcDepth; img++) {
904 const GLubyte *srcRow = srcImage;
905 GLubyte *dstRow = (GLubyte *) dstAddr
906 + dstImageOffsets[dstZoffset + img] * dstComponents
907 + dstYoffset * dstRowStride
908 + dstXoffset * dstComponents;
909 for (row = 0; row < srcHeight; row++) {
910 swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth);
911 dstRow += dstRowStride;
912 srcRow += srcRowStride;
913 }
914 srcImage += srcImageStride;
915 }
916 }
917 }
918
919
920 /**
921 * Teximage storage routine for when a simple memcpy will do.
922 * No pixel transfer operations or special texel encodings allowed.
923 * 1D, 2D and 3D images supported.
924 */
925 static void
926 memcpy_texture(struct gl_context *ctx,
927 GLuint dimensions,
928 gl_format dstFormat,
929 GLvoid *dstAddr,
930 GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
931 GLint dstRowStride,
932 const GLuint *dstImageOffsets,
933 GLint srcWidth, GLint srcHeight, GLint srcDepth,
934 GLenum srcFormat, GLenum srcType,
935 const GLvoid *srcAddr,
936 const struct gl_pixelstore_attrib *srcPacking)
937 {
938 const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth,
939 srcFormat, srcType);
940 const GLint srcImageStride = _mesa_image_image_stride(srcPacking,
941 srcWidth, srcHeight, srcFormat, srcType);
942 const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions,
943 srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0);
944 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
945 const GLint bytesPerRow = srcWidth * texelBytes;
946
947 #if 0
948 /* XXX update/re-enable for dstImageOffsets array */
949 const GLint bytesPerImage = srcHeight * bytesPerRow;
950 const GLint bytesPerTexture = srcDepth * bytesPerImage;
951 GLubyte *dstImage = (GLubyte *) dstAddr
952 + dstZoffset * dstImageStride
953 + dstYoffset * dstRowStride
954 + dstXoffset * texelBytes;
955
956 if (dstRowStride == srcRowStride &&
957 dstRowStride == bytesPerRow &&
958 ((dstImageStride == srcImageStride &&
959 dstImageStride == bytesPerImage) ||
960 (srcDepth == 1))) {
961 /* one big memcpy */
962 ctx->Driver.TextureMemCpy(dstImage, srcImage, bytesPerTexture);
963 }
964 else
965 {
966 GLint img, row;
967 for (img = 0; img < srcDepth; img++) {
968 const GLubyte *srcRow = srcImage;
969 GLubyte *dstRow = dstImage;
970 for (row = 0; row < srcHeight; row++) {
971 ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow);
972 dstRow += dstRowStride;
973 srcRow += srcRowStride;
974 }
975 srcImage += srcImageStride;
976 dstImage += dstImageStride;
977 }
978 }
979 #endif
980
981 GLint img, row;
982 for (img = 0; img < srcDepth; img++) {
983 const GLubyte *srcRow = srcImage;
984 GLubyte *dstRow = (GLubyte *) dstAddr
985 + dstImageOffsets[dstZoffset + img] * texelBytes
986 + dstYoffset * dstRowStride
987 + dstXoffset * texelBytes;
988 for (row = 0; row < srcHeight; row++) {
989 ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow);
990 dstRow += dstRowStride;
991 srcRow += srcRowStride;
992 }
993 srcImage += srcImageStride;
994 }
995 }
996
997
998
999 /**
1000 * Store a 32-bit integer depth component texture image.
1001 */
1002 static GLboolean
1003 _mesa_texstore_z32(TEXSTORE_PARAMS)
1004 {
1005 const GLuint depthScale = 0xffffffff;
1006 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1007 (void) dims;
1008 ASSERT(dstFormat == MESA_FORMAT_Z32);
1009 ASSERT(texelBytes == sizeof(GLuint));
1010
1011 if (ctx->Pixel.DepthScale == 1.0f &&
1012 ctx->Pixel.DepthBias == 0.0f &&
1013 !srcPacking->SwapBytes &&
1014 baseInternalFormat == GL_DEPTH_COMPONENT &&
1015 srcFormat == GL_DEPTH_COMPONENT &&
1016 srcType == GL_UNSIGNED_INT) {
1017 /* simple memcpy path */
1018 memcpy_texture(ctx, dims,
1019 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1020 dstRowStride,
1021 dstImageOffsets,
1022 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1023 srcAddr, srcPacking);
1024 }
1025 else {
1026 /* general path */
1027 GLint img, row;
1028 for (img = 0; img < srcDepth; img++) {
1029 GLubyte *dstRow = (GLubyte *) dstAddr
1030 + dstImageOffsets[dstZoffset + img] * texelBytes
1031 + dstYoffset * dstRowStride
1032 + dstXoffset * texelBytes;
1033 for (row = 0; row < srcHeight; row++) {
1034 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1035 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1036 _mesa_unpack_depth_span(ctx, srcWidth,
1037 GL_UNSIGNED_INT, (GLuint *) dstRow,
1038 depthScale, srcType, src, srcPacking);
1039 dstRow += dstRowStride;
1040 }
1041 }
1042 }
1043 return GL_TRUE;
1044 }
1045
1046
1047 /**
1048 * Store a 24-bit integer depth component texture image.
1049 */
1050 static GLboolean
1051 _mesa_texstore_x8_z24(TEXSTORE_PARAMS)
1052 {
1053 const GLuint depthScale = 0xffffff;
1054 const GLuint texelBytes = 4;
1055
1056 (void) dims;
1057 ASSERT(dstFormat == MESA_FORMAT_X8_Z24);
1058
1059 {
1060 /* general path */
1061 GLint img, row;
1062 for (img = 0; img < srcDepth; img++) {
1063 GLubyte *dstRow = (GLubyte *) dstAddr
1064 + dstImageOffsets[dstZoffset + img] * texelBytes
1065 + dstYoffset * dstRowStride
1066 + dstXoffset * texelBytes;
1067 for (row = 0; row < srcHeight; row++) {
1068 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1069 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1070 _mesa_unpack_depth_span(ctx, srcWidth,
1071 GL_UNSIGNED_INT, (GLuint *) dstRow,
1072 depthScale, srcType, src, srcPacking);
1073 dstRow += dstRowStride;
1074 }
1075 }
1076 }
1077 return GL_TRUE;
1078 }
1079
1080
1081 /**
1082 * Store a 24-bit integer depth component texture image.
1083 */
1084 static GLboolean
1085 _mesa_texstore_z24_x8(TEXSTORE_PARAMS)
1086 {
1087 const GLuint depthScale = 0xffffff;
1088 const GLuint texelBytes = 4;
1089
1090 (void) dims;
1091 ASSERT(dstFormat == MESA_FORMAT_Z24_X8);
1092
1093 {
1094 /* general path */
1095 GLint img, row;
1096 for (img = 0; img < srcDepth; img++) {
1097 GLubyte *dstRow = (GLubyte *) dstAddr
1098 + dstImageOffsets[dstZoffset + img] * texelBytes
1099 + dstYoffset * dstRowStride
1100 + dstXoffset * texelBytes;
1101 for (row = 0; row < srcHeight; row++) {
1102 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1103 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1104 GLuint *dst = (GLuint *) dstRow;
1105 GLint i;
1106 _mesa_unpack_depth_span(ctx, srcWidth,
1107 GL_UNSIGNED_INT, dst,
1108 depthScale, srcType, src, srcPacking);
1109 for (i = 0; i < srcWidth; i++)
1110 dst[i] <<= 8;
1111 dstRow += dstRowStride;
1112 }
1113 }
1114 }
1115 return GL_TRUE;
1116 }
1117
1118
1119 /**
1120 * Store a 16-bit integer depth component texture image.
1121 */
1122 static GLboolean
1123 _mesa_texstore_z16(TEXSTORE_PARAMS)
1124 {
1125 const GLuint depthScale = 0xffff;
1126 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1127 (void) dims;
1128 ASSERT(dstFormat == MESA_FORMAT_Z16);
1129 ASSERT(texelBytes == sizeof(GLushort));
1130
1131 if (ctx->Pixel.DepthScale == 1.0f &&
1132 ctx->Pixel.DepthBias == 0.0f &&
1133 !srcPacking->SwapBytes &&
1134 baseInternalFormat == GL_DEPTH_COMPONENT &&
1135 srcFormat == GL_DEPTH_COMPONENT &&
1136 srcType == GL_UNSIGNED_SHORT) {
1137 /* simple memcpy path */
1138 memcpy_texture(ctx, dims,
1139 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1140 dstRowStride,
1141 dstImageOffsets,
1142 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1143 srcAddr, srcPacking);
1144 }
1145 else {
1146 /* general path */
1147 GLint img, row;
1148 for (img = 0; img < srcDepth; img++) {
1149 GLubyte *dstRow = (GLubyte *) dstAddr
1150 + dstImageOffsets[dstZoffset + img] * texelBytes
1151 + dstYoffset * dstRowStride
1152 + dstXoffset * texelBytes;
1153 for (row = 0; row < srcHeight; row++) {
1154 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1155 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1156 GLushort *dst16 = (GLushort *) dstRow;
1157 _mesa_unpack_depth_span(ctx, srcWidth,
1158 GL_UNSIGNED_SHORT, dst16, depthScale,
1159 srcType, src, srcPacking);
1160 dstRow += dstRowStride;
1161 }
1162 }
1163 }
1164 return GL_TRUE;
1165 }
1166
1167
1168 /**
1169 * Store an rgb565 or rgb565_rev texture image.
1170 */
1171 static GLboolean
1172 _mesa_texstore_rgb565(TEXSTORE_PARAMS)
1173 {
1174 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1175 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1176
1177 ASSERT(dstFormat == MESA_FORMAT_RGB565 ||
1178 dstFormat == MESA_FORMAT_RGB565_REV);
1179 ASSERT(texelBytes == 2);
1180
1181 if (!ctx->_ImageTransferState &&
1182 !srcPacking->SwapBytes &&
1183 dstFormat == MESA_FORMAT_RGB565 &&
1184 baseInternalFormat == GL_RGB &&
1185 srcFormat == GL_RGB &&
1186 srcType == GL_UNSIGNED_SHORT_5_6_5) {
1187 /* simple memcpy path */
1188 memcpy_texture(ctx, dims,
1189 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1190 dstRowStride,
1191 dstImageOffsets,
1192 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1193 srcAddr, srcPacking);
1194 }
1195 else if (!ctx->_ImageTransferState &&
1196 !srcPacking->SwapBytes &&
1197 baseInternalFormat == GL_RGB &&
1198 srcFormat == GL_RGB &&
1199 srcType == GL_UNSIGNED_BYTE &&
1200 dims == 2) {
1201 /* do optimized tex store */
1202 const GLint srcRowStride =
1203 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1204 const GLubyte *src = (const GLubyte *)
1205 _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight,
1206 srcFormat, srcType, 0, 0, 0);
1207 GLubyte *dst = (GLubyte *) dstAddr
1208 + dstYoffset * dstRowStride
1209 + dstXoffset * texelBytes;
1210 GLint row, col;
1211 for (row = 0; row < srcHeight; row++) {
1212 const GLubyte *srcUB = (const GLubyte *) src;
1213 GLushort *dstUS = (GLushort *) dst;
1214 /* check for byteswapped format */
1215 if (dstFormat == MESA_FORMAT_RGB565) {
1216 for (col = 0; col < srcWidth; col++) {
1217 dstUS[col] = PACK_COLOR_565( srcUB[0], srcUB[1], srcUB[2] );
1218 srcUB += 3;
1219 }
1220 }
1221 else {
1222 for (col = 0; col < srcWidth; col++) {
1223 dstUS[col] = PACK_COLOR_565_REV( srcUB[0], srcUB[1], srcUB[2] );
1224 srcUB += 3;
1225 }
1226 }
1227 dst += dstRowStride;
1228 src += srcRowStride;
1229 }
1230 }
1231 else {
1232 /* general path */
1233 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1234 baseInternalFormat,
1235 baseFormat,
1236 srcWidth, srcHeight, srcDepth,
1237 srcFormat, srcType, srcAddr,
1238 srcPacking);
1239 const GLchan *src = tempImage;
1240 GLint img, row, col;
1241 if (!tempImage)
1242 return GL_FALSE;
1243 for (img = 0; img < srcDepth; img++) {
1244 GLubyte *dstRow = (GLubyte *) dstAddr
1245 + dstImageOffsets[dstZoffset + img] * texelBytes
1246 + dstYoffset * dstRowStride
1247 + dstXoffset * texelBytes;
1248 for (row = 0; row < srcHeight; row++) {
1249 GLushort *dstUS = (GLushort *) dstRow;
1250 /* check for byteswapped format */
1251 if (dstFormat == MESA_FORMAT_RGB565) {
1252 for (col = 0; col < srcWidth; col++) {
1253 dstUS[col] = PACK_COLOR_565( CHAN_TO_UBYTE(src[RCOMP]),
1254 CHAN_TO_UBYTE(src[GCOMP]),
1255 CHAN_TO_UBYTE(src[BCOMP]) );
1256 src += 3;
1257 }
1258 }
1259 else {
1260 for (col = 0; col < srcWidth; col++) {
1261 dstUS[col] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src[RCOMP]),
1262 CHAN_TO_UBYTE(src[GCOMP]),
1263 CHAN_TO_UBYTE(src[BCOMP]) );
1264 src += 3;
1265 }
1266 }
1267 dstRow += dstRowStride;
1268 }
1269 }
1270 free((void *) tempImage);
1271 }
1272 return GL_TRUE;
1273 }
1274
1275
1276 /**
1277 * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
1278 */
1279 static GLboolean
1280 _mesa_texstore_rgba8888(TEXSTORE_PARAMS)
1281 {
1282 const GLboolean littleEndian = _mesa_little_endian();
1283 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1284 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1285
1286 ASSERT(dstFormat == MESA_FORMAT_RGBA8888 ||
1287 dstFormat == MESA_FORMAT_RGBA8888_REV);
1288 ASSERT(texelBytes == 4);
1289
1290 if (!ctx->_ImageTransferState &&
1291 !srcPacking->SwapBytes &&
1292 dstFormat == MESA_FORMAT_RGBA8888 &&
1293 baseInternalFormat == GL_RGBA &&
1294 ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
1295 (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
1296 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
1297 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian))) {
1298 /* simple memcpy path */
1299 memcpy_texture(ctx, dims,
1300 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1301 dstRowStride,
1302 dstImageOffsets,
1303 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1304 srcAddr, srcPacking);
1305 }
1306 else if (!ctx->_ImageTransferState &&
1307 !srcPacking->SwapBytes &&
1308 dstFormat == MESA_FORMAT_RGBA8888_REV &&
1309 baseInternalFormat == GL_RGBA &&
1310 ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
1311 (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) ||
1312 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
1313 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian))) {
1314 /* simple memcpy path */
1315 memcpy_texture(ctx, dims,
1316 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1317 dstRowStride,
1318 dstImageOffsets,
1319 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1320 srcAddr, srcPacking);
1321 }
1322 else if (!ctx->_ImageTransferState &&
1323 (srcType == GL_UNSIGNED_BYTE ||
1324 srcType == GL_UNSIGNED_INT_8_8_8_8 ||
1325 srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
1326 can_swizzle(baseInternalFormat) &&
1327 can_swizzle(srcFormat)) {
1328
1329 GLubyte dstmap[4];
1330
1331 /* dstmap - how to swizzle from RGBA to dst format:
1332 */
1333 if ((littleEndian && dstFormat == MESA_FORMAT_RGBA8888) ||
1334 (!littleEndian && dstFormat == MESA_FORMAT_RGBA8888_REV)) {
1335 dstmap[3] = 0;
1336 dstmap[2] = 1;
1337 dstmap[1] = 2;
1338 dstmap[0] = 3;
1339 }
1340 else {
1341 dstmap[3] = 3;
1342 dstmap[2] = 2;
1343 dstmap[1] = 1;
1344 dstmap[0] = 0;
1345 }
1346
1347 _mesa_swizzle_ubyte_image(ctx, dims,
1348 srcFormat,
1349 srcType,
1350 baseInternalFormat,
1351 dstmap, 4,
1352 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1353 dstRowStride, dstImageOffsets,
1354 srcWidth, srcHeight, srcDepth, srcAddr,
1355 srcPacking);
1356 }
1357 else {
1358 /* general path */
1359 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1360 baseInternalFormat,
1361 baseFormat,
1362 srcWidth, srcHeight, srcDepth,
1363 srcFormat, srcType, srcAddr,
1364 srcPacking);
1365 const GLchan *src = tempImage;
1366 GLint img, row, col;
1367 if (!tempImage)
1368 return GL_FALSE;
1369 for (img = 0; img < srcDepth; img++) {
1370 GLubyte *dstRow = (GLubyte *) dstAddr
1371 + dstImageOffsets[dstZoffset + img] * texelBytes
1372 + dstYoffset * dstRowStride
1373 + dstXoffset * texelBytes;
1374 for (row = 0; row < srcHeight; row++) {
1375 GLuint *dstUI = (GLuint *) dstRow;
1376 if (dstFormat == MESA_FORMAT_RGBA8888) {
1377 for (col = 0; col < srcWidth; col++) {
1378 dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[RCOMP]),
1379 CHAN_TO_UBYTE(src[GCOMP]),
1380 CHAN_TO_UBYTE(src[BCOMP]),
1381 CHAN_TO_UBYTE(src[ACOMP]) );
1382 src += 4;
1383 }
1384 }
1385 else {
1386 for (col = 0; col < srcWidth; col++) {
1387 dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[RCOMP]),
1388 CHAN_TO_UBYTE(src[GCOMP]),
1389 CHAN_TO_UBYTE(src[BCOMP]),
1390 CHAN_TO_UBYTE(src[ACOMP]) );
1391 src += 4;
1392 }
1393 }
1394 dstRow += dstRowStride;
1395 }
1396 }
1397 free((void *) tempImage);
1398 }
1399 return GL_TRUE;
1400 }
1401
1402
1403 static GLboolean
1404 _mesa_texstore_argb8888(TEXSTORE_PARAMS)
1405 {
1406 const GLboolean littleEndian = _mesa_little_endian();
1407 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1408 const GLenum baseFormat = GL_RGBA;
1409
1410 ASSERT(dstFormat == MESA_FORMAT_ARGB8888 ||
1411 dstFormat == MESA_FORMAT_ARGB8888_REV ||
1412 dstFormat == MESA_FORMAT_XRGB8888 ||
1413 dstFormat == MESA_FORMAT_XRGB8888_REV );
1414 ASSERT(texelBytes == 4);
1415
1416 if (!ctx->_ImageTransferState &&
1417 !srcPacking->SwapBytes &&
1418 (dstFormat == MESA_FORMAT_ARGB8888 ||
1419 dstFormat == MESA_FORMAT_XRGB8888) &&
1420 baseInternalFormat == GL_RGBA &&
1421 srcFormat == GL_BGRA &&
1422 ((srcType == GL_UNSIGNED_BYTE && littleEndian) ||
1423 srcType == GL_UNSIGNED_INT_8_8_8_8_REV)) {
1424 /* simple memcpy path (little endian) */
1425 memcpy_texture(ctx, dims,
1426 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1427 dstRowStride,
1428 dstImageOffsets,
1429 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1430 srcAddr, srcPacking);
1431 }
1432 else if (!ctx->_ImageTransferState &&
1433 !srcPacking->SwapBytes &&
1434 (dstFormat == MESA_FORMAT_ARGB8888_REV ||
1435 dstFormat == MESA_FORMAT_XRGB8888_REV) &&
1436 baseInternalFormat == GL_RGBA &&
1437 srcFormat == GL_BGRA &&
1438 ((srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
1439 srcType == GL_UNSIGNED_INT_8_8_8_8)) {
1440 /* simple memcpy path (big endian) */
1441 memcpy_texture(ctx, dims,
1442 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1443 dstRowStride,
1444 dstImageOffsets,
1445 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1446 srcAddr, srcPacking);
1447 }
1448 else if (!ctx->_ImageTransferState &&
1449 !srcPacking->SwapBytes &&
1450 (dstFormat == MESA_FORMAT_ARGB8888 ||
1451 dstFormat == MESA_FORMAT_XRGB8888) &&
1452 srcFormat == GL_RGB &&
1453 (baseInternalFormat == GL_RGBA ||
1454 baseInternalFormat == GL_RGB) &&
1455 srcType == GL_UNSIGNED_BYTE) {
1456 int img, row, col;
1457 for (img = 0; img < srcDepth; img++) {
1458 const GLint srcRowStride =
1459 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1460 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1461 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1462 GLubyte *dstRow = (GLubyte *) dstAddr
1463 + dstImageOffsets[dstZoffset + img] * texelBytes
1464 + dstYoffset * dstRowStride
1465 + dstXoffset * texelBytes;
1466 for (row = 0; row < srcHeight; row++) {
1467 GLuint *d4 = (GLuint *) dstRow;
1468 for (col = 0; col < srcWidth; col++) {
1469 d4[col] = PACK_COLOR_8888(0xff,
1470 srcRow[col * 3 + RCOMP],
1471 srcRow[col * 3 + GCOMP],
1472 srcRow[col * 3 + BCOMP]);
1473 }
1474 dstRow += dstRowStride;
1475 srcRow += srcRowStride;
1476 }
1477 }
1478 }
1479 else if (!ctx->_ImageTransferState &&
1480 !srcPacking->SwapBytes &&
1481 dstFormat == MESA_FORMAT_ARGB8888 &&
1482 srcFormat == GL_RGBA &&
1483 baseInternalFormat == GL_RGBA &&
1484 srcType == GL_UNSIGNED_BYTE) {
1485 /* same as above case, but src data has alpha too */
1486 GLint img, row, col;
1487 /* For some reason, streaming copies to write-combined regions
1488 * are extremely sensitive to the characteristics of how the
1489 * source data is retrieved. By reordering the source reads to
1490 * be in-order, the speed of this operation increases by half.
1491 * Strangely the same isn't required for the RGB path, above.
1492 */
1493 for (img = 0; img < srcDepth; img++) {
1494 const GLint srcRowStride =
1495 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1496 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1497 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1498 GLubyte *dstRow = (GLubyte *) dstAddr
1499 + dstImageOffsets[dstZoffset + img] * texelBytes
1500 + dstYoffset * dstRowStride
1501 + dstXoffset * texelBytes;
1502 for (row = 0; row < srcHeight; row++) {
1503 GLuint *d4 = (GLuint *) dstRow;
1504 for (col = 0; col < srcWidth; col++) {
1505 d4[col] = PACK_COLOR_8888(srcRow[col * 4 + ACOMP],
1506 srcRow[col * 4 + RCOMP],
1507 srcRow[col * 4 + GCOMP],
1508 srcRow[col * 4 + BCOMP]);
1509 }
1510 dstRow += dstRowStride;
1511 srcRow += srcRowStride;
1512 }
1513 }
1514 }
1515 else if (!ctx->_ImageTransferState &&
1516 (srcType == GL_UNSIGNED_BYTE ||
1517 srcType == GL_UNSIGNED_INT_8_8_8_8 ||
1518 srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
1519 can_swizzle(baseInternalFormat) &&
1520 can_swizzle(srcFormat)) {
1521
1522 GLubyte dstmap[4];
1523
1524 /* dstmap - how to swizzle from RGBA to dst format:
1525 */
1526 if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
1527 (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) ||
1528 (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
1529 (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV)) {
1530 dstmap[3] = 3; /* alpha */
1531 dstmap[2] = 0; /* red */
1532 dstmap[1] = 1; /* green */
1533 dstmap[0] = 2; /* blue */
1534 }
1535 else {
1536 assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
1537 (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
1538 (littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV) ||
1539 (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888));
1540 dstmap[3] = 2;
1541 dstmap[2] = 1;
1542 dstmap[1] = 0;
1543 dstmap[0] = 3;
1544 }
1545
1546 _mesa_swizzle_ubyte_image(ctx, dims,
1547 srcFormat,
1548 srcType,
1549 baseInternalFormat,
1550 dstmap, 4,
1551 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1552 dstRowStride,
1553 dstImageOffsets,
1554 srcWidth, srcHeight, srcDepth, srcAddr,
1555 srcPacking);
1556 }
1557 else {
1558 /* general path */
1559 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1560 baseInternalFormat,
1561 baseFormat,
1562 srcWidth, srcHeight, srcDepth,
1563 srcFormat, srcType, srcAddr,
1564 srcPacking);
1565 const GLchan *src = tempImage;
1566 GLint img, row, col;
1567 if (!tempImage)
1568 return GL_FALSE;
1569 for (img = 0; img < srcDepth; img++) {
1570 GLubyte *dstRow = (GLubyte *) dstAddr
1571 + dstImageOffsets[dstZoffset + img] * texelBytes
1572 + dstYoffset * dstRowStride
1573 + dstXoffset * texelBytes;
1574 for (row = 0; row < srcHeight; row++) {
1575 GLuint *dstUI = (GLuint *) dstRow;
1576 if (dstFormat == MESA_FORMAT_ARGB8888) {
1577 for (col = 0; col < srcWidth; col++) {
1578 dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[ACOMP]),
1579 CHAN_TO_UBYTE(src[RCOMP]),
1580 CHAN_TO_UBYTE(src[GCOMP]),
1581 CHAN_TO_UBYTE(src[BCOMP]) );
1582 src += 4;
1583 }
1584 }
1585 else if (dstFormat == MESA_FORMAT_XRGB8888) {
1586 for (col = 0; col < srcWidth; col++) {
1587 dstUI[col] = PACK_COLOR_8888( 0xff,
1588 CHAN_TO_UBYTE(src[RCOMP]),
1589 CHAN_TO_UBYTE(src[GCOMP]),
1590 CHAN_TO_UBYTE(src[BCOMP]) );
1591 src += 4;
1592 }
1593 }
1594 else {
1595 for (col = 0; col < srcWidth; col++) {
1596 dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[ACOMP]),
1597 CHAN_TO_UBYTE(src[RCOMP]),
1598 CHAN_TO_UBYTE(src[GCOMP]),
1599 CHAN_TO_UBYTE(src[BCOMP]) );
1600 src += 4;
1601 }
1602 }
1603 dstRow += dstRowStride;
1604 }
1605 }
1606 free((void *) tempImage);
1607 }
1608 return GL_TRUE;
1609 }
1610
1611
1612 static GLboolean
1613 _mesa_texstore_rgb888(TEXSTORE_PARAMS)
1614 {
1615 const GLboolean littleEndian = _mesa_little_endian();
1616 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1617 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1618
1619 ASSERT(dstFormat == MESA_FORMAT_RGB888);
1620 ASSERT(texelBytes == 3);
1621
1622 if (!ctx->_ImageTransferState &&
1623 !srcPacking->SwapBytes &&
1624 baseInternalFormat == GL_RGB &&
1625 srcFormat == GL_BGR &&
1626 srcType == GL_UNSIGNED_BYTE &&
1627 littleEndian) {
1628 /* simple memcpy path */
1629 memcpy_texture(ctx, dims,
1630 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1631 dstRowStride,
1632 dstImageOffsets,
1633 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1634 srcAddr, srcPacking);
1635 }
1636 else if (!ctx->_ImageTransferState &&
1637 !srcPacking->SwapBytes &&
1638 srcFormat == GL_RGBA &&
1639 srcType == GL_UNSIGNED_BYTE) {
1640 /* extract RGB from RGBA */
1641 GLint img, row, col;
1642 for (img = 0; img < srcDepth; img++) {
1643 const GLint srcRowStride =
1644 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1645 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1646 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1647 GLubyte *dstRow = (GLubyte *) dstAddr
1648 + dstImageOffsets[dstZoffset + img] * texelBytes
1649 + dstYoffset * dstRowStride
1650 + dstXoffset * texelBytes;
1651 for (row = 0; row < srcHeight; row++) {
1652 for (col = 0; col < srcWidth; col++) {
1653 dstRow[col * 3 + 0] = srcRow[col * 4 + BCOMP];
1654 dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
1655 dstRow[col * 3 + 2] = srcRow[col * 4 + RCOMP];
1656 }
1657 dstRow += dstRowStride;
1658 srcRow += srcRowStride;
1659 }
1660 }
1661 }
1662 else if (!ctx->_ImageTransferState &&
1663 srcType == GL_UNSIGNED_BYTE &&
1664 can_swizzle(baseInternalFormat) &&
1665 can_swizzle(srcFormat)) {
1666
1667 GLubyte dstmap[4];
1668
1669 /* dstmap - how to swizzle from RGBA to dst format:
1670 */
1671 dstmap[0] = 2;
1672 dstmap[1] = 1;
1673 dstmap[2] = 0;
1674 dstmap[3] = ONE; /* ? */
1675
1676 _mesa_swizzle_ubyte_image(ctx, dims,
1677 srcFormat,
1678 srcType,
1679 baseInternalFormat,
1680 dstmap, 3,
1681 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1682 dstRowStride, dstImageOffsets,
1683 srcWidth, srcHeight, srcDepth, srcAddr,
1684 srcPacking);
1685 }
1686 else {
1687 /* general path */
1688 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1689 baseInternalFormat,
1690 baseFormat,
1691 srcWidth, srcHeight, srcDepth,
1692 srcFormat, srcType, srcAddr,
1693 srcPacking);
1694 const GLchan *src = (const GLchan *) tempImage;
1695 GLint img, row, col;
1696 if (!tempImage)
1697 return GL_FALSE;
1698 for (img = 0; img < srcDepth; img++) {
1699 GLubyte *dstRow = (GLubyte *) dstAddr
1700 + dstImageOffsets[dstZoffset + img] * texelBytes
1701 + dstYoffset * dstRowStride
1702 + dstXoffset * texelBytes;
1703 for (row = 0; row < srcHeight; row++) {
1704 #if 0
1705 if (littleEndian) {
1706 for (col = 0; col < srcWidth; col++) {
1707 dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]);
1708 dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
1709 dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]);
1710 srcUB += 3;
1711 }
1712 }
1713 else {
1714 for (col = 0; col < srcWidth; col++) {
1715 dstRow[col * 3 + 0] = srcUB[BCOMP];
1716 dstRow[col * 3 + 1] = srcUB[GCOMP];
1717 dstRow[col * 3 + 2] = srcUB[RCOMP];
1718 srcUB += 3;
1719 }
1720 }
1721 #else
1722 for (col = 0; col < srcWidth; col++) {
1723 dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[BCOMP]);
1724 dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
1725 dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[RCOMP]);
1726 src += 3;
1727 }
1728 #endif
1729 dstRow += dstRowStride;
1730 }
1731 }
1732 free((void *) tempImage);
1733 }
1734 return GL_TRUE;
1735 }
1736
1737
1738 static GLboolean
1739 _mesa_texstore_bgr888(TEXSTORE_PARAMS)
1740 {
1741 const GLboolean littleEndian = _mesa_little_endian();
1742 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1743 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1744
1745 ASSERT(dstFormat == MESA_FORMAT_BGR888);
1746 ASSERT(texelBytes == 3);
1747
1748 if (!ctx->_ImageTransferState &&
1749 !srcPacking->SwapBytes &&
1750 baseInternalFormat == GL_RGB &&
1751 srcFormat == GL_RGB &&
1752 srcType == GL_UNSIGNED_BYTE &&
1753 littleEndian) {
1754 /* simple memcpy path */
1755 memcpy_texture(ctx, dims,
1756 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1757 dstRowStride,
1758 dstImageOffsets,
1759 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1760 srcAddr, srcPacking);
1761 }
1762 else if (!ctx->_ImageTransferState &&
1763 !srcPacking->SwapBytes &&
1764 srcFormat == GL_RGBA &&
1765 srcType == GL_UNSIGNED_BYTE) {
1766 /* extract BGR from RGBA */
1767 int img, row, col;
1768 for (img = 0; img < srcDepth; img++) {
1769 const GLint srcRowStride =
1770 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1771 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1772 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1773 GLubyte *dstRow = (GLubyte *) dstAddr
1774 + dstImageOffsets[dstZoffset + img] * texelBytes
1775 + dstYoffset * dstRowStride
1776 + dstXoffset * texelBytes;
1777 for (row = 0; row < srcHeight; row++) {
1778 for (col = 0; col < srcWidth; col++) {
1779 dstRow[col * 3 + 0] = srcRow[col * 4 + RCOMP];
1780 dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
1781 dstRow[col * 3 + 2] = srcRow[col * 4 + BCOMP];
1782 }
1783 dstRow += dstRowStride;
1784 srcRow += srcRowStride;
1785 }
1786 }
1787 }
1788 else if (!ctx->_ImageTransferState &&
1789 srcType == GL_UNSIGNED_BYTE &&
1790 can_swizzle(baseInternalFormat) &&
1791 can_swizzle(srcFormat)) {
1792
1793 GLubyte dstmap[4];
1794
1795 /* dstmap - how to swizzle from RGBA to dst format:
1796 */
1797 dstmap[0] = 0;
1798 dstmap[1] = 1;
1799 dstmap[2] = 2;
1800 dstmap[3] = ONE; /* ? */
1801
1802 _mesa_swizzle_ubyte_image(ctx, dims,
1803 srcFormat,
1804 srcType,
1805 baseInternalFormat,
1806 dstmap, 3,
1807 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1808 dstRowStride, dstImageOffsets,
1809 srcWidth, srcHeight, srcDepth, srcAddr,
1810 srcPacking);
1811 }
1812 else {
1813 /* general path */
1814 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1815 baseInternalFormat,
1816 baseFormat,
1817 srcWidth, srcHeight, srcDepth,
1818 srcFormat, srcType, srcAddr,
1819 srcPacking);
1820 const GLchan *src = (const GLchan *) tempImage;
1821 GLint img, row, col;
1822 if (!tempImage)
1823 return GL_FALSE;
1824 for (img = 0; img < srcDepth; img++) {
1825 GLubyte *dstRow = (GLubyte *) dstAddr
1826 + dstImageOffsets[dstZoffset + img] * texelBytes
1827 + dstYoffset * dstRowStride
1828 + dstXoffset * texelBytes;
1829 for (row = 0; row < srcHeight; row++) {
1830 for (col = 0; col < srcWidth; col++) {
1831 dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]);
1832 dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
1833 dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]);
1834 src += 3;
1835 }
1836 dstRow += dstRowStride;
1837 }
1838 }
1839 free((void *) tempImage);
1840 }
1841 return GL_TRUE;
1842 }
1843
1844
1845 static GLboolean
1846 _mesa_texstore_argb4444(TEXSTORE_PARAMS)
1847 {
1848 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1849 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1850
1851 ASSERT(dstFormat == MESA_FORMAT_ARGB4444 ||
1852 dstFormat == MESA_FORMAT_ARGB4444_REV);
1853 ASSERT(texelBytes == 2);
1854
1855 if (!ctx->_ImageTransferState &&
1856 !srcPacking->SwapBytes &&
1857 dstFormat == MESA_FORMAT_ARGB4444 &&
1858 baseInternalFormat == GL_RGBA &&
1859 srcFormat == GL_BGRA &&
1860 srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
1861 /* simple memcpy path */
1862 memcpy_texture(ctx, dims,
1863 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1864 dstRowStride,
1865 dstImageOffsets,
1866 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1867 srcAddr, srcPacking);
1868 }
1869 else {
1870 /* general path */
1871 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1872 baseInternalFormat,
1873 baseFormat,
1874 srcWidth, srcHeight, srcDepth,
1875 srcFormat, srcType, srcAddr,
1876 srcPacking);
1877 const GLchan *src = tempImage;
1878 GLint img, row, col;
1879 if (!tempImage)
1880 return GL_FALSE;
1881 for (img = 0; img < srcDepth; img++) {
1882 GLubyte *dstRow = (GLubyte *) dstAddr
1883 + dstImageOffsets[dstZoffset + img] * texelBytes
1884 + dstYoffset * dstRowStride
1885 + dstXoffset * texelBytes;
1886 for (row = 0; row < srcHeight; row++) {
1887 GLushort *dstUS = (GLushort *) dstRow;
1888 if (dstFormat == MESA_FORMAT_ARGB4444) {
1889 for (col = 0; col < srcWidth; col++) {
1890 dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[ACOMP]),
1891 CHAN_TO_UBYTE(src[RCOMP]),
1892 CHAN_TO_UBYTE(src[GCOMP]),
1893 CHAN_TO_UBYTE(src[BCOMP]) );
1894 src += 4;
1895 }
1896 }
1897 else {
1898 for (col = 0; col < srcWidth; col++) {
1899 dstUS[col] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src[ACOMP]),
1900 CHAN_TO_UBYTE(src[RCOMP]),
1901 CHAN_TO_UBYTE(src[GCOMP]),
1902 CHAN_TO_UBYTE(src[BCOMP]) );
1903 src += 4;
1904 }
1905 }
1906 dstRow += dstRowStride;
1907 }
1908 }
1909 free((void *) tempImage);
1910 }
1911 return GL_TRUE;
1912 }
1913
1914 static GLboolean
1915 _mesa_texstore_rgba5551(TEXSTORE_PARAMS)
1916 {
1917 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1918 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1919
1920 ASSERT(dstFormat == MESA_FORMAT_RGBA5551);
1921 ASSERT(texelBytes == 2);
1922
1923 if (!ctx->_ImageTransferState &&
1924 !srcPacking->SwapBytes &&
1925 dstFormat == MESA_FORMAT_RGBA5551 &&
1926 baseInternalFormat == GL_RGBA &&
1927 srcFormat == GL_RGBA &&
1928 srcType == GL_UNSIGNED_SHORT_5_5_5_1) {
1929 /* simple memcpy path */
1930 memcpy_texture(ctx, dims,
1931 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1932 dstRowStride,
1933 dstImageOffsets,
1934 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1935 srcAddr, srcPacking);
1936 }
1937 else {
1938 /* general path */
1939 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1940 baseInternalFormat,
1941 baseFormat,
1942 srcWidth, srcHeight, srcDepth,
1943 srcFormat, srcType, srcAddr,
1944 srcPacking);
1945 const GLchan *src =tempImage;
1946 GLint img, row, col;
1947 if (!tempImage)
1948 return GL_FALSE;
1949 for (img = 0; img < srcDepth; img++) {
1950 GLubyte *dstRow = (GLubyte *) dstAddr
1951 + dstImageOffsets[dstZoffset + img] * texelBytes
1952 + dstYoffset * dstRowStride
1953 + dstXoffset * texelBytes;
1954 for (row = 0; row < srcHeight; row++) {
1955 GLushort *dstUS = (GLushort *) dstRow;
1956 for (col = 0; col < srcWidth; col++) {
1957 dstUS[col] = PACK_COLOR_5551( CHAN_TO_UBYTE(src[RCOMP]),
1958 CHAN_TO_UBYTE(src[GCOMP]),
1959 CHAN_TO_UBYTE(src[BCOMP]),
1960 CHAN_TO_UBYTE(src[ACOMP]) );
1961 src += 4;
1962 }
1963 dstRow += dstRowStride;
1964 }
1965 }
1966 free((void *) tempImage);
1967 }
1968 return GL_TRUE;
1969 }
1970
1971 static GLboolean
1972 _mesa_texstore_argb1555(TEXSTORE_PARAMS)
1973 {
1974 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1975 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1976
1977 ASSERT(dstFormat == MESA_FORMAT_ARGB1555 ||
1978 dstFormat == MESA_FORMAT_ARGB1555_REV);
1979 ASSERT(texelBytes == 2);
1980
1981 if (!ctx->_ImageTransferState &&
1982 !srcPacking->SwapBytes &&
1983 dstFormat == MESA_FORMAT_ARGB1555 &&
1984 baseInternalFormat == GL_RGBA &&
1985 srcFormat == GL_BGRA &&
1986 srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
1987 /* simple memcpy path */
1988 memcpy_texture(ctx, dims,
1989 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1990 dstRowStride,
1991 dstImageOffsets,
1992 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1993 srcAddr, srcPacking);
1994 }
1995 else {
1996 /* general path */
1997 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1998 baseInternalFormat,
1999 baseFormat,
2000 srcWidth, srcHeight, srcDepth,
2001 srcFormat, srcType, srcAddr,
2002 srcPacking);
2003 const GLchan *src =tempImage;
2004 GLint img, row, col;
2005 if (!tempImage)
2006 return GL_FALSE;
2007 for (img = 0; img < srcDepth; img++) {
2008 GLubyte *dstRow = (GLubyte *) dstAddr
2009 + dstImageOffsets[dstZoffset + img] * texelBytes
2010 + dstYoffset * dstRowStride
2011 + dstXoffset * texelBytes;
2012 for (row = 0; row < srcHeight; row++) {
2013 GLushort *dstUS = (GLushort *) dstRow;
2014 if (dstFormat == MESA_FORMAT_ARGB1555) {
2015 for (col = 0; col < srcWidth; col++) {
2016 dstUS[col] = PACK_COLOR_1555( CHAN_TO_UBYTE(src[ACOMP]),
2017 CHAN_TO_UBYTE(src[RCOMP]),
2018 CHAN_TO_UBYTE(src[GCOMP]),
2019 CHAN_TO_UBYTE(src[BCOMP]) );
2020 src += 4;
2021 }
2022 }
2023 else {
2024 for (col = 0; col < srcWidth; col++) {
2025 dstUS[col] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src[ACOMP]),
2026 CHAN_TO_UBYTE(src[RCOMP]),
2027 CHAN_TO_UBYTE(src[GCOMP]),
2028 CHAN_TO_UBYTE(src[BCOMP]) );
2029 src += 4;
2030 }
2031 }
2032 dstRow += dstRowStride;
2033 }
2034 }
2035 free((void *) tempImage);
2036 }
2037 return GL_TRUE;
2038 }
2039
2040
2041 static GLboolean
2042 _mesa_texstore_argb2101010(TEXSTORE_PARAMS)
2043 {
2044 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2045 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2046
2047 ASSERT(dstFormat == MESA_FORMAT_ARGB2101010);
2048 ASSERT(texelBytes == 4);
2049
2050 if (!ctx->_ImageTransferState &&
2051 !srcPacking->SwapBytes &&
2052 dstFormat == MESA_FORMAT_ARGB2101010 &&
2053 srcFormat == GL_BGRA &&
2054 srcType == GL_UNSIGNED_INT_2_10_10_10_REV &&
2055 baseInternalFormat == GL_RGBA) {
2056 /* simple memcpy path */
2057 memcpy_texture(ctx, dims,
2058 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2059 dstRowStride,
2060 dstImageOffsets,
2061 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2062 srcAddr, srcPacking);
2063 }
2064 else {
2065 /* general path */
2066 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2067 baseInternalFormat,
2068 baseFormat,
2069 srcWidth, srcHeight, srcDepth,
2070 srcFormat, srcType, srcAddr,
2071 srcPacking);
2072 const GLchan *src = tempImage;
2073 GLint img, row, col;
2074 if (!tempImage)
2075 return GL_FALSE;
2076 for (img = 0; img < srcDepth; img++) {
2077 GLubyte *dstRow = (GLubyte *) dstAddr
2078 + dstImageOffsets[dstZoffset + img] * texelBytes
2079 + dstYoffset * dstRowStride
2080 + dstXoffset * texelBytes;
2081 if (baseInternalFormat == GL_RGBA) {
2082 for (row = 0; row < srcHeight; row++) {
2083 GLuint *dstUS = (GLuint *) dstRow;
2084 for (col = 0; col < srcWidth; col++) {
2085 dstUS[col] = PACK_COLOR_2101010( CHAN_TO_UBYTE(src[ACOMP]),
2086 CHAN_TO_UBYTE(src[RCOMP]),
2087 CHAN_TO_UBYTE(src[GCOMP]),
2088 CHAN_TO_UBYTE(src[BCOMP]) );
2089 src += 4;
2090 }
2091 dstRow += dstRowStride;
2092 }
2093 } else if (baseInternalFormat == GL_RGB) {
2094 for (row = 0; row < srcHeight; row++) {
2095 GLuint *dstUS = (GLuint *) dstRow;
2096 for (col = 0; col < srcWidth; col++) {
2097 dstUS[col] = PACK_COLOR_2101010( 0xff,
2098 CHAN_TO_UBYTE(src[RCOMP]),
2099 CHAN_TO_UBYTE(src[GCOMP]),
2100 CHAN_TO_UBYTE(src[BCOMP]) );
2101 src += 4;
2102 }
2103 dstRow += dstRowStride;
2104 }
2105 } else {
2106 ASSERT(0);
2107 }
2108 }
2109 free((void *) tempImage);
2110 }
2111 return GL_TRUE;
2112 }
2113
2114
2115 /**
2116 * Do texstore for 2-channel, 4-bit/channel, unsigned normalized formats.
2117 */
2118 static GLboolean
2119 _mesa_texstore_unorm44(TEXSTORE_PARAMS)
2120 {
2121 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2122 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2123
2124 ASSERT(dstFormat == MESA_FORMAT_AL44);
2125 ASSERT(texelBytes == 1);
2126
2127 {
2128 /* general path */
2129 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2130 baseInternalFormat,
2131 baseFormat,
2132 srcWidth, srcHeight, srcDepth,
2133 srcFormat, srcType, srcAddr,
2134 srcPacking);
2135 const GLchan *src = tempImage;
2136 GLint img, row, col;
2137 if (!tempImage)
2138 return GL_FALSE;
2139 for (img = 0; img < srcDepth; img++) {
2140 GLubyte *dstRow = (GLubyte *) dstAddr
2141 + dstImageOffsets[dstZoffset + img] * texelBytes
2142 + dstYoffset * dstRowStride
2143 + dstXoffset * texelBytes;
2144 for (row = 0; row < srcHeight; row++) {
2145 GLubyte *dstUS = (GLubyte *) dstRow;
2146 for (col = 0; col < srcWidth; col++) {
2147 /* src[0] is luminance, src[1] is alpha */
2148 dstUS[col] = PACK_COLOR_44( CHAN_TO_UBYTE(src[1]),
2149 CHAN_TO_UBYTE(src[0]) );
2150 src += 2;
2151 }
2152 dstRow += dstRowStride;
2153 }
2154 }
2155 free((void *) tempImage);
2156 }
2157 return GL_TRUE;
2158 }
2159
2160
2161 /**
2162 * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats.
2163 */
2164 static GLboolean
2165 _mesa_texstore_unorm88(TEXSTORE_PARAMS)
2166 {
2167 const GLboolean littleEndian = _mesa_little_endian();
2168 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2169 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2170
2171 ASSERT(dstFormat == MESA_FORMAT_AL88 ||
2172 dstFormat == MESA_FORMAT_AL88_REV ||
2173 dstFormat == MESA_FORMAT_RG88 ||
2174 dstFormat == MESA_FORMAT_RG88_REV);
2175 ASSERT(texelBytes == 2);
2176
2177 if (!ctx->_ImageTransferState &&
2178 !srcPacking->SwapBytes &&
2179 (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_RG88) &&
2180 baseInternalFormat == srcFormat &&
2181 srcType == GL_UNSIGNED_BYTE &&
2182 littleEndian) {
2183 /* simple memcpy path */
2184 memcpy_texture(ctx, dims,
2185 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2186 dstRowStride,
2187 dstImageOffsets,
2188 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2189 srcAddr, srcPacking);
2190 }
2191 else if (!ctx->_ImageTransferState &&
2192 littleEndian &&
2193 srcType == GL_UNSIGNED_BYTE &&
2194 can_swizzle(baseInternalFormat) &&
2195 can_swizzle(srcFormat)) {
2196 GLubyte dstmap[4];
2197
2198 /* dstmap - how to swizzle from RGBA to dst format:
2199 */
2200 if (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_AL88_REV) {
2201 if ((littleEndian && dstFormat == MESA_FORMAT_AL88) ||
2202 (!littleEndian && dstFormat == MESA_FORMAT_AL88_REV)) {
2203 dstmap[0] = 0;
2204 dstmap[1] = 3;
2205 }
2206 else {
2207 dstmap[0] = 3;
2208 dstmap[1] = 0;
2209 }
2210 }
2211 else {
2212 if ((littleEndian && dstFormat == MESA_FORMAT_RG88) ||
2213 (!littleEndian && dstFormat == MESA_FORMAT_RG88_REV)) {
2214 dstmap[0] = 0;
2215 dstmap[1] = 1;
2216 }
2217 else {
2218 dstmap[0] = 1;
2219 dstmap[1] = 0;
2220 }
2221 }
2222 dstmap[2] = ZERO; /* ? */
2223 dstmap[3] = ONE; /* ? */
2224
2225 _mesa_swizzle_ubyte_image(ctx, dims,
2226 srcFormat,
2227 srcType,
2228 baseInternalFormat,
2229 dstmap, 2,
2230 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2231 dstRowStride, dstImageOffsets,
2232 srcWidth, srcHeight, srcDepth, srcAddr,
2233 srcPacking);
2234 }
2235 else {
2236 /* general path */
2237 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2238 baseInternalFormat,
2239 baseFormat,
2240 srcWidth, srcHeight, srcDepth,
2241 srcFormat, srcType, srcAddr,
2242 srcPacking);
2243 const GLchan *src = tempImage;
2244 GLint img, row, col;
2245 if (!tempImage)
2246 return GL_FALSE;
2247 for (img = 0; img < srcDepth; img++) {
2248 GLubyte *dstRow = (GLubyte *) dstAddr
2249 + dstImageOffsets[dstZoffset + img] * texelBytes
2250 + dstYoffset * dstRowStride
2251 + dstXoffset * texelBytes;
2252 for (row = 0; row < srcHeight; row++) {
2253 GLushort *dstUS = (GLushort *) dstRow;
2254 if (dstFormat == MESA_FORMAT_AL88 ||
2255 dstFormat == MESA_FORMAT_RG88) {
2256 for (col = 0; col < srcWidth; col++) {
2257 /* src[0] is luminance, src[1] is alpha */
2258 dstUS[col] = PACK_COLOR_88( CHAN_TO_UBYTE(src[1]),
2259 CHAN_TO_UBYTE(src[0]) );
2260 src += 2;
2261 }
2262 }
2263 else {
2264 for (col = 0; col < srcWidth; col++) {
2265 /* src[0] is luminance, src[1] is alpha */
2266 dstUS[col] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src[1]),
2267 CHAN_TO_UBYTE(src[0]) );
2268 src += 2;
2269 }
2270 }
2271 dstRow += dstRowStride;
2272 }
2273 }
2274 free((void *) tempImage);
2275 }
2276 return GL_TRUE;
2277 }
2278
2279
2280 /**
2281 * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats.
2282 */
2283 static GLboolean
2284 _mesa_texstore_unorm1616(TEXSTORE_PARAMS)
2285 {
2286 const GLboolean littleEndian = _mesa_little_endian();
2287 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2288 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2289
2290 ASSERT(dstFormat == MESA_FORMAT_AL1616 ||
2291 dstFormat == MESA_FORMAT_AL1616_REV ||
2292 dstFormat == MESA_FORMAT_RG1616 ||
2293 dstFormat == MESA_FORMAT_RG1616_REV);
2294 ASSERT(texelBytes == 4);
2295
2296 if (!ctx->_ImageTransferState &&
2297 !srcPacking->SwapBytes &&
2298 (dstFormat == MESA_FORMAT_AL1616 || dstFormat == MESA_FORMAT_RG1616) &&
2299 baseInternalFormat == srcFormat &&
2300 srcType == GL_UNSIGNED_SHORT &&
2301 littleEndian) {
2302 /* simple memcpy path */
2303 memcpy_texture(ctx, dims,
2304 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2305 dstRowStride,
2306 dstImageOffsets,
2307 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2308 srcAddr, srcPacking);
2309 }
2310 else {
2311 /* general path */
2312 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2313 baseInternalFormat,
2314 baseFormat,
2315 srcWidth, srcHeight, srcDepth,
2316 srcFormat, srcType, srcAddr,
2317 srcPacking,
2318 ctx->_ImageTransferState);
2319 const GLfloat *src = tempImage;
2320 GLint img, row, col;
2321 if (!tempImage)
2322 return GL_FALSE;
2323 for (img = 0; img < srcDepth; img++) {
2324 GLubyte *dstRow = (GLubyte *) dstAddr
2325 + dstImageOffsets[dstZoffset + img] * texelBytes
2326 + dstYoffset * dstRowStride
2327 + dstXoffset * texelBytes;
2328 for (row = 0; row < srcHeight; row++) {
2329 GLuint *dstUI = (GLuint *) dstRow;
2330 if (dstFormat == MESA_FORMAT_AL1616 ||
2331 dstFormat == MESA_FORMAT_RG1616) {
2332 for (col = 0; col < srcWidth; col++) {
2333 GLushort l, a;
2334
2335 UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
2336 UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
2337 dstUI[col] = PACK_COLOR_1616(a, l);
2338 src += 2;
2339 }
2340 }
2341 else {
2342 for (col = 0; col < srcWidth; col++) {
2343 GLushort l, a;
2344
2345 UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
2346 UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
2347 dstUI[col] = PACK_COLOR_1616_REV(a, l);
2348 src += 2;
2349 }
2350 }
2351 dstRow += dstRowStride;
2352 }
2353 }
2354 free((void *) tempImage);
2355 }
2356 return GL_TRUE;
2357 }
2358
2359
2360 /* Texstore for R16, A16, L16, I16. */
2361 static GLboolean
2362 _mesa_texstore_unorm16(TEXSTORE_PARAMS)
2363 {
2364 const GLboolean littleEndian = _mesa_little_endian();
2365 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2366 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2367
2368 ASSERT(dstFormat == MESA_FORMAT_R16 ||
2369 dstFormat == MESA_FORMAT_A16 ||
2370 dstFormat == MESA_FORMAT_L16 ||
2371 dstFormat == MESA_FORMAT_I16);
2372 ASSERT(texelBytes == 2);
2373
2374 if (!ctx->_ImageTransferState &&
2375 !srcPacking->SwapBytes &&
2376 baseInternalFormat == srcFormat &&
2377 srcType == GL_UNSIGNED_SHORT &&
2378 littleEndian) {
2379 /* simple memcpy path */
2380 memcpy_texture(ctx, dims,
2381 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2382 dstRowStride,
2383 dstImageOffsets,
2384 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2385 srcAddr, srcPacking);
2386 }
2387 else {
2388 /* general path */
2389 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2390 baseInternalFormat,
2391 baseFormat,
2392 srcWidth, srcHeight, srcDepth,
2393 srcFormat, srcType, srcAddr,
2394 srcPacking,
2395 ctx->_ImageTransferState);
2396 const GLfloat *src = tempImage;
2397 GLint img, row, col;
2398 if (!tempImage)
2399 return GL_FALSE;
2400 for (img = 0; img < srcDepth; img++) {
2401 GLubyte *dstRow = (GLubyte *) dstAddr
2402 + dstImageOffsets[dstZoffset + img] * texelBytes
2403 + dstYoffset * dstRowStride
2404 + dstXoffset * texelBytes;
2405 for (row = 0; row < srcHeight; row++) {
2406 GLushort *dstUS = (GLushort *) dstRow;
2407 for (col = 0; col < srcWidth; col++) {
2408 GLushort r;
2409
2410 UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
2411 dstUS[col] = r;
2412 src += 1;
2413 }
2414 dstRow += dstRowStride;
2415 }
2416 }
2417 free((void *) tempImage);
2418 }
2419 return GL_TRUE;
2420 }
2421
2422
2423 static GLboolean
2424 _mesa_texstore_rgba_16(TEXSTORE_PARAMS)
2425 {
2426 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2427 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2428
2429 ASSERT(dstFormat == MESA_FORMAT_RGBA_16);
2430 ASSERT(texelBytes == 8);
2431
2432 if (!ctx->_ImageTransferState &&
2433 !srcPacking->SwapBytes &&
2434 baseInternalFormat == GL_RGBA &&
2435 srcFormat == GL_RGBA &&
2436 srcType == GL_UNSIGNED_SHORT) {
2437 /* simple memcpy path */
2438 memcpy_texture(ctx, dims,
2439 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2440 dstRowStride,
2441 dstImageOffsets,
2442 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2443 srcAddr, srcPacking);
2444 }
2445 else {
2446 /* general path */
2447 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2448 baseInternalFormat,
2449 baseFormat,
2450 srcWidth, srcHeight, srcDepth,
2451 srcFormat, srcType, srcAddr,
2452 srcPacking,
2453 ctx->_ImageTransferState);
2454 const GLfloat *src = tempImage;
2455 GLint img, row, col;
2456 if (!tempImage)
2457 return GL_FALSE;
2458 for (img = 0; img < srcDepth; img++) {
2459 GLubyte *dstRow = (GLubyte *) dstAddr
2460 + dstImageOffsets[dstZoffset + img] * texelBytes
2461 + dstYoffset * dstRowStride
2462 + dstXoffset * texelBytes;
2463 for (row = 0; row < srcHeight; row++) {
2464 GLushort *dstUS = (GLushort *) dstRow;
2465 for (col = 0; col < srcWidth; col++) {
2466 GLushort r, g, b, a;
2467
2468 UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
2469 UNCLAMPED_FLOAT_TO_USHORT(g, src[1]);
2470 UNCLAMPED_FLOAT_TO_USHORT(b, src[2]);
2471 UNCLAMPED_FLOAT_TO_USHORT(a, src[3]);
2472 dstUS[col*4+0] = r;
2473 dstUS[col*4+1] = g;
2474 dstUS[col*4+2] = b;
2475 dstUS[col*4+3] = a;
2476 src += 4;
2477 }
2478 dstRow += dstRowStride;
2479 }
2480 }
2481 free((void *) tempImage);
2482 }
2483 return GL_TRUE;
2484 }
2485
2486
2487 static GLboolean
2488 _mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS)
2489 {
2490 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2491 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2492
2493 ASSERT(dstFormat == MESA_FORMAT_SIGNED_R_16 ||
2494 dstFormat == MESA_FORMAT_SIGNED_RG_16 ||
2495 dstFormat == MESA_FORMAT_SIGNED_RGB_16 ||
2496 dstFormat == MESA_FORMAT_SIGNED_RGBA_16);
2497
2498 if (!ctx->_ImageTransferState &&
2499 !srcPacking->SwapBytes &&
2500 baseInternalFormat == GL_RGBA &&
2501 dstFormat == MESA_FORMAT_SIGNED_RGBA_16 &&
2502 srcFormat == GL_RGBA &&
2503 srcType == GL_SHORT) {
2504 /* simple memcpy path */
2505 memcpy_texture(ctx, dims,
2506 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2507 dstRowStride,
2508 dstImageOffsets,
2509 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2510 srcAddr, srcPacking);
2511 }
2512 else {
2513 /* general path */
2514 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2515 baseInternalFormat,
2516 baseFormat,
2517 srcWidth, srcHeight, srcDepth,
2518 srcFormat, srcType, srcAddr,
2519 srcPacking,
2520 ctx->_ImageTransferState);
2521 const GLfloat *src = tempImage;
2522 const GLuint comps = _mesa_get_format_bytes(dstFormat) / 2;
2523 GLint img, row, col;
2524
2525 if (!tempImage)
2526 return GL_FALSE;
2527
2528 /* Note: tempImage is always float[4] / RGBA. We convert to 1, 2,
2529 * 3 or 4 components/pixel here.
2530 */
2531 for (img = 0; img < srcDepth; img++) {
2532 GLubyte *dstRow = (GLubyte *) dstAddr
2533 + dstImageOffsets[dstZoffset + img] * texelBytes
2534 + dstYoffset * dstRowStride
2535 + dstXoffset * texelBytes;
2536 for (row = 0; row < srcHeight; row++) {
2537 GLshort *dstRowS = (GLshort *) dstRow;
2538 for (col = 0; col < srcWidth; col++) {
2539 GLuint c;
2540 for (c = 0; c < comps; c++) {
2541 GLshort p;
2542 UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 4 + c]);
2543 dstRowS[col * comps + c] = p;
2544 }
2545 }
2546 dstRow += dstRowStride;
2547 src += 4 * srcWidth;
2548 }
2549 }
2550 free((void *) tempImage);
2551 }
2552 return GL_TRUE;
2553 }
2554
2555
2556 static GLboolean
2557 _mesa_texstore_rgb332(TEXSTORE_PARAMS)
2558 {
2559 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2560 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2561
2562 ASSERT(dstFormat == MESA_FORMAT_RGB332);
2563 ASSERT(texelBytes == 1);
2564
2565 if (!ctx->_ImageTransferState &&
2566 !srcPacking->SwapBytes &&
2567 baseInternalFormat == GL_RGB &&
2568 srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE_3_3_2) {
2569 /* simple memcpy path */
2570 memcpy_texture(ctx, dims,
2571 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2572 dstRowStride,
2573 dstImageOffsets,
2574 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2575 srcAddr, srcPacking);
2576 }
2577 else {
2578 /* general path */
2579 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2580 baseInternalFormat,
2581 baseFormat,
2582 srcWidth, srcHeight, srcDepth,
2583 srcFormat, srcType, srcAddr,
2584 srcPacking);
2585 const GLchan *src = tempImage;
2586 GLint img, row, col;
2587 if (!tempImage)
2588 return GL_FALSE;
2589 for (img = 0; img < srcDepth; img++) {
2590 GLubyte *dstRow = (GLubyte *) dstAddr
2591 + dstImageOffsets[dstZoffset + img] * texelBytes
2592 + dstYoffset * dstRowStride
2593 + dstXoffset * texelBytes;
2594 for (row = 0; row < srcHeight; row++) {
2595 for (col = 0; col < srcWidth; col++) {
2596 dstRow[col] = PACK_COLOR_332( CHAN_TO_UBYTE(src[RCOMP]),
2597 CHAN_TO_UBYTE(src[GCOMP]),
2598 CHAN_TO_UBYTE(src[BCOMP]) );
2599 src += 3;
2600 }
2601 dstRow += dstRowStride;
2602 }
2603 }
2604 free((void *) tempImage);
2605 }
2606 return GL_TRUE;
2607 }
2608
2609
2610 /**
2611 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
2612 */
2613 static GLboolean
2614 _mesa_texstore_a8(TEXSTORE_PARAMS)
2615 {
2616 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2617 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2618
2619 ASSERT(dstFormat == MESA_FORMAT_A8 ||
2620 dstFormat == MESA_FORMAT_L8 ||
2621 dstFormat == MESA_FORMAT_I8 ||
2622 dstFormat == MESA_FORMAT_R8);
2623 ASSERT(texelBytes == 1);
2624
2625 if (!ctx->_ImageTransferState &&
2626 !srcPacking->SwapBytes &&
2627 baseInternalFormat == srcFormat &&
2628 srcType == GL_UNSIGNED_BYTE) {
2629 /* simple memcpy path */
2630 memcpy_texture(ctx, dims,
2631 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2632 dstRowStride,
2633 dstImageOffsets,
2634 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2635 srcAddr, srcPacking);
2636 }
2637 else if (!ctx->_ImageTransferState &&
2638 srcType == GL_UNSIGNED_BYTE &&
2639 can_swizzle(baseInternalFormat) &&
2640 can_swizzle(srcFormat)) {
2641 GLubyte dstmap[4];
2642
2643 /* dstmap - how to swizzle from RGBA to dst format:
2644 */
2645 if (dstFormat == MESA_FORMAT_A8) {
2646 dstmap[0] = 3;
2647 }
2648 else {
2649 dstmap[0] = 0;
2650 }
2651 dstmap[1] = ZERO; /* ? */
2652 dstmap[2] = ZERO; /* ? */
2653 dstmap[3] = ONE; /* ? */
2654
2655 _mesa_swizzle_ubyte_image(ctx, dims,
2656 srcFormat,
2657 srcType,
2658 baseInternalFormat,
2659 dstmap, 1,
2660 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2661 dstRowStride, dstImageOffsets,
2662 srcWidth, srcHeight, srcDepth, srcAddr,
2663 srcPacking);
2664 }
2665 else {
2666 /* general path */
2667 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2668 baseInternalFormat,
2669 baseFormat,
2670 srcWidth, srcHeight, srcDepth,
2671 srcFormat, srcType, srcAddr,
2672 srcPacking);
2673 const GLchan *src = tempImage;
2674 GLint img, row, col;
2675 if (!tempImage)
2676 return GL_FALSE;
2677 for (img = 0; img < srcDepth; img++) {
2678 GLubyte *dstRow = (GLubyte *) dstAddr
2679 + dstImageOffsets[dstZoffset + img] * texelBytes
2680 + dstYoffset * dstRowStride
2681 + dstXoffset * texelBytes;
2682 for (row = 0; row < srcHeight; row++) {
2683 for (col = 0; col < srcWidth; col++) {
2684 dstRow[col] = CHAN_TO_UBYTE(src[col]);
2685 }
2686 dstRow += dstRowStride;
2687 src += srcWidth;
2688 }
2689 }
2690 free((void *) tempImage);
2691 }
2692 return GL_TRUE;
2693 }
2694
2695
2696
2697 static GLboolean
2698 _mesa_texstore_ci8(TEXSTORE_PARAMS)
2699 {
2700 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2701
2702 (void) dims; (void) baseInternalFormat;
2703 ASSERT(dstFormat == MESA_FORMAT_CI8);
2704 ASSERT(texelBytes == 1);
2705 ASSERT(baseInternalFormat == GL_COLOR_INDEX);
2706
2707 if (!ctx->_ImageTransferState &&
2708 !srcPacking->SwapBytes &&
2709 srcFormat == GL_COLOR_INDEX &&
2710 srcType == GL_UNSIGNED_BYTE) {
2711 /* simple memcpy path */
2712 memcpy_texture(ctx, dims,
2713 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2714 dstRowStride,
2715 dstImageOffsets,
2716 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2717 srcAddr, srcPacking);
2718 }
2719 else {
2720 /* general path */
2721 GLint img, row;
2722 for (img = 0; img < srcDepth; img++) {
2723 GLubyte *dstRow = (GLubyte *) dstAddr
2724 + dstImageOffsets[dstZoffset + img] * texelBytes
2725 + dstYoffset * dstRowStride
2726 + dstXoffset * texelBytes;
2727 for (row = 0; row < srcHeight; row++) {
2728 const GLvoid *src = _mesa_image_address(dims, srcPacking,
2729 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
2730 _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow,
2731 srcType, src, srcPacking,
2732 ctx->_ImageTransferState);
2733 dstRow += dstRowStride;
2734 }
2735 }
2736 }
2737 return GL_TRUE;
2738 }
2739
2740
2741 /**
2742 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV.
2743 */
2744 static GLboolean
2745 _mesa_texstore_ycbcr(TEXSTORE_PARAMS)
2746 {
2747 const GLboolean littleEndian = _mesa_little_endian();
2748 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2749
2750 (void) ctx; (void) dims; (void) baseInternalFormat;
2751
2752 ASSERT((dstFormat == MESA_FORMAT_YCBCR) ||
2753 (dstFormat == MESA_FORMAT_YCBCR_REV));
2754 ASSERT(texelBytes == 2);
2755 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
2756 ASSERT(srcFormat == GL_YCBCR_MESA);
2757 ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) ||
2758 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA));
2759 ASSERT(baseInternalFormat == GL_YCBCR_MESA);
2760
2761 /* always just memcpy since no pixel transfer ops apply */
2762 memcpy_texture(ctx, dims,
2763 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2764 dstRowStride,
2765 dstImageOffsets,
2766 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2767 srcAddr, srcPacking);
2768
2769 /* Check if we need byte swapping */
2770 /* XXX the logic here _might_ be wrong */
2771 if (srcPacking->SwapBytes ^
2772 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^
2773 (dstFormat == MESA_FORMAT_YCBCR_REV) ^
2774 !littleEndian) {
2775 GLint img, row;
2776 for (img = 0; img < srcDepth; img++) {
2777 GLubyte *dstRow = (GLubyte *) dstAddr
2778 + dstImageOffsets[dstZoffset + img] * texelBytes
2779 + dstYoffset * dstRowStride
2780 + dstXoffset * texelBytes;
2781 for (row = 0; row < srcHeight; row++) {
2782 _mesa_swap2((GLushort *) dstRow, srcWidth);
2783 dstRow += dstRowStride;
2784 }
2785 }
2786 }
2787 return GL_TRUE;
2788 }
2789
2790 static GLboolean
2791 _mesa_texstore_dudv8(TEXSTORE_PARAMS)
2792 {
2793 const GLboolean littleEndian = _mesa_little_endian();
2794 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2795
2796 ASSERT(dstFormat == MESA_FORMAT_DUDV8);
2797 ASSERT(texelBytes == 2);
2798 ASSERT(ctx->Extensions.ATI_envmap_bumpmap);
2799 ASSERT((srcFormat == GL_DU8DV8_ATI) ||
2800 (srcFormat == GL_DUDV_ATI));
2801 ASSERT(baseInternalFormat == GL_DUDV_ATI);
2802
2803 if (!srcPacking->SwapBytes && srcType == GL_BYTE &&
2804 littleEndian) {
2805 /* simple memcpy path */
2806 memcpy_texture(ctx, dims,
2807 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2808 dstRowStride,
2809 dstImageOffsets,
2810 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2811 srcAddr, srcPacking);
2812 }
2813 else if (srcType == GL_BYTE) {
2814 GLubyte dstmap[4];
2815
2816 /* dstmap - how to swizzle from RGBA to dst format:
2817 */
2818 if (littleEndian) {
2819 dstmap[0] = 0;
2820 dstmap[1] = 3;
2821 }
2822 else {
2823 dstmap[0] = 3;
2824 dstmap[1] = 0;
2825 }
2826 dstmap[2] = ZERO; /* ? */
2827 dstmap[3] = ONE; /* ? */
2828
2829 _mesa_swizzle_ubyte_image(ctx, dims,
2830 GL_LUMINANCE_ALPHA, /* hack */
2831 GL_UNSIGNED_BYTE, /* hack */
2832 GL_LUMINANCE_ALPHA, /* hack */
2833 dstmap, 2,
2834 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2835 dstRowStride, dstImageOffsets,
2836 srcWidth, srcHeight, srcDepth, srcAddr,
2837 srcPacking);
2838 }
2839 else {
2840 /* general path - note this is defined for 2d textures only */
2841 const GLint components = _mesa_components_in_format(baseInternalFormat);
2842 const GLint srcStride = _mesa_image_row_stride(srcPacking, srcWidth,
2843 srcFormat, srcType);
2844 GLbyte *tempImage, *dst, *src;
2845 GLint row;
2846
2847 tempImage = (GLbyte *) malloc(srcWidth * srcHeight * srcDepth
2848 * components * sizeof(GLbyte));
2849 if (!tempImage)
2850 return GL_FALSE;
2851
2852 src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2853 srcWidth, srcHeight,
2854 srcFormat, srcType,
2855 0, 0, 0);
2856
2857 dst = tempImage;
2858 for (row = 0; row < srcHeight; row++) {
2859 _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat,
2860 dst, srcFormat, srcType, src,
2861 srcPacking, 0);
2862 dst += srcWidth * components;
2863 src += srcStride;
2864 }
2865
2866 src = tempImage;
2867 dst = (GLbyte *) dstAddr
2868 + dstYoffset * dstRowStride
2869 + dstXoffset * texelBytes;
2870 for (row = 0; row < srcHeight; row++) {
2871 memcpy(dst, src, srcWidth * texelBytes);
2872 dst += dstRowStride;
2873 src += srcWidth * texelBytes;
2874 }
2875 free((void *) tempImage);
2876 }
2877 return GL_TRUE;
2878 }
2879
2880
2881 /**
2882 * Store a texture in MESA_FORMAT_SIGNED_R8 format.
2883 */
2884 static GLboolean
2885 _mesa_texstore_signed_r8(TEXSTORE_PARAMS)
2886 {
2887 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2888 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2889
2890 ASSERT(dstFormat == MESA_FORMAT_SIGNED_R8);
2891 ASSERT(texelBytes == 1);
2892
2893 /* XXX look at adding optimized paths */
2894 {
2895 /* general path */
2896 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2897 baseInternalFormat,
2898 baseFormat,
2899 srcWidth, srcHeight, srcDepth,
2900 srcFormat, srcType, srcAddr,
2901 srcPacking,
2902 ctx->_ImageTransferState);
2903 const GLfloat *srcRow = tempImage;
2904 GLint img, row, col;
2905 if (!tempImage)
2906 return GL_FALSE;
2907 for (img = 0; img < srcDepth; img++) {
2908 GLubyte *dstRow = (GLubyte *) dstAddr
2909 + dstImageOffsets[dstZoffset + img] * texelBytes
2910 + dstYoffset * dstRowStride
2911 + dstXoffset * texelBytes;
2912 for (row = 0; row < srcHeight; row++) {
2913 GLubyte *dstB = (GLubyte *) dstRow;
2914 for (col = 0; col < srcWidth; col++) {
2915 dstB[col] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]);
2916 }
2917 dstRow += dstRowStride;
2918 }
2919 }
2920 free((void *) tempImage);
2921 }
2922 return GL_TRUE;
2923 }
2924
2925
2926 /**
2927 * Store a texture in MESA_FORMAT_SIGNED_RG88 format.
2928 */
2929 static GLboolean
2930 _mesa_texstore_signed_rg88(TEXSTORE_PARAMS)
2931 {
2932 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2933 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2934
2935 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG88);
2936 ASSERT(texelBytes == 1);
2937
2938 /* XXX look at adding optimized paths */
2939 {
2940 /* general path */
2941 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2942 baseInternalFormat,
2943 baseFormat,
2944 srcWidth, srcHeight, srcDepth,
2945 srcFormat, srcType, srcAddr,
2946 srcPacking,
2947 ctx->_ImageTransferState);
2948 const GLfloat *srcRow = tempImage;
2949 GLint img, row, col;
2950 if (!tempImage)
2951 return GL_FALSE;
2952 for (img = 0; img < srcDepth; img++) {
2953 GLubyte *dstRow = (GLubyte *) dstAddr
2954 + dstImageOffsets[dstZoffset + img] * texelBytes
2955 + dstYoffset * dstRowStride
2956 + dstXoffset * texelBytes;
2957 for (row = 0; row < srcHeight; row++) {
2958 GLushort *dstUS = (GLushort *) dstRow;
2959 for (col = 0; col < srcWidth; col++) {
2960 dstUS[col] = PACK_COLOR_88(FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
2961 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]));
2962 }
2963 dstRow += dstRowStride;
2964 }
2965 }
2966 free((void *) tempImage);
2967 }
2968 return GL_TRUE;
2969 }
2970
2971
2972 /**
2973 * Store a texture in MESA_FORMAT_SIGNED_RGBX8888.
2974 */
2975 static GLboolean
2976 _mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS)
2977 {
2978 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2979 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2980
2981 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBX8888);
2982 ASSERT(texelBytes == 4);
2983
2984 {
2985 /* general path */
2986 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2987 baseInternalFormat,
2988 baseFormat,
2989 srcWidth, srcHeight, srcDepth,
2990 srcFormat, srcType, srcAddr,
2991 srcPacking,
2992 ctx->_ImageTransferState);
2993 const GLfloat *srcRow = tempImage;
2994 GLint img, row, col;
2995 if (!tempImage)
2996 return GL_FALSE;
2997 for (img = 0; img < srcDepth; img++) {
2998 GLubyte *dstRow = (GLubyte *) dstAddr
2999 + dstImageOffsets[dstZoffset + img] * texelBytes
3000 + dstYoffset * dstRowStride
3001 + dstXoffset * texelBytes;
3002 for (row = 0; row < srcHeight; row++) {
3003 GLuint *dstUI = (GLuint *) dstRow;
3004 for (col = 0; col < srcWidth; col++) {
3005 dstUI[col] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
3006 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
3007 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
3008 0xff );
3009 srcRow += 4;
3010 }
3011 dstRow += dstRowStride;
3012 }
3013 }
3014 free((void *) tempImage);
3015 }
3016 return GL_TRUE;
3017 }
3018
3019
3020
3021 /**
3022 * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or
3023 * MESA_FORMAT_SIGNED_RGBA8888_REV
3024 */
3025 static GLboolean
3026 _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
3027 {
3028 const GLboolean littleEndian = _mesa_little_endian();
3029 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3030 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3031
3032 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBA8888 ||
3033 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV);
3034 ASSERT(texelBytes == 4);
3035
3036 if (!ctx->_ImageTransferState &&
3037 !srcPacking->SwapBytes &&
3038 dstFormat == MESA_FORMAT_SIGNED_RGBA8888 &&
3039 baseInternalFormat == GL_RGBA &&
3040 ((srcFormat == GL_RGBA && srcType == GL_BYTE && !littleEndian) ||
3041 (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && littleEndian))) {
3042 /* simple memcpy path */
3043 memcpy_texture(ctx, dims,
3044 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3045 dstRowStride,
3046 dstImageOffsets,
3047 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3048 srcAddr, srcPacking);
3049 }
3050 else if (!ctx->_ImageTransferState &&
3051 !srcPacking->SwapBytes &&
3052 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV &&
3053 baseInternalFormat == GL_RGBA &&
3054 ((srcFormat == GL_RGBA && srcType == GL_BYTE && littleEndian) ||
3055 (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && !littleEndian))) {
3056 /* simple memcpy path */
3057 memcpy_texture(ctx, dims,
3058 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3059 dstRowStride,
3060 dstImageOffsets,
3061 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3062 srcAddr, srcPacking);
3063 }
3064 else if (!ctx->_ImageTransferState &&
3065 (srcType == GL_BYTE) &&
3066 can_swizzle(baseInternalFormat) &&
3067 can_swizzle(srcFormat)) {
3068
3069 GLubyte dstmap[4];
3070
3071 /* dstmap - how to swizzle from RGBA to dst format:
3072 */
3073 if ((littleEndian && dstFormat == MESA_FORMAT_SIGNED_RGBA8888) ||
3074 (!littleEndian && dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV)) {
3075 dstmap[3] = 0;
3076 dstmap[2] = 1;
3077 dstmap[1] = 2;
3078 dstmap[0] = 3;
3079 }
3080 else {
3081 dstmap[3] = 3;
3082 dstmap[2] = 2;
3083 dstmap[1] = 1;
3084 dstmap[0] = 0;
3085 }
3086
3087 _mesa_swizzle_ubyte_image(ctx, dims,
3088 srcFormat,
3089 srcType,
3090 baseInternalFormat,
3091 dstmap, 4,
3092 dstAddr, dstXoffset, dstYoffset, dstZoffset,
3093 dstRowStride, dstImageOffsets,
3094 srcWidth, srcHeight, srcDepth, srcAddr,
3095 srcPacking);
3096 }
3097 else {
3098 /* general path */
3099 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3100 baseInternalFormat,
3101 baseFormat,
3102 srcWidth, srcHeight, srcDepth,
3103 srcFormat, srcType, srcAddr,
3104 srcPacking,
3105 ctx->_ImageTransferState);
3106 const GLfloat *srcRow = tempImage;
3107 GLint img, row, col;
3108 if (!tempImage)
3109 return GL_FALSE;
3110 for (img = 0; img < srcDepth; img++) {
3111 GLubyte *dstRow = (GLubyte *) dstAddr
3112 + dstImageOffsets[dstZoffset + img] * texelBytes
3113 + dstYoffset * dstRowStride
3114 + dstXoffset * texelBytes;
3115 for (row = 0; row < srcHeight; row++) {
3116 GLuint *dstUI = (GLuint *) dstRow;
3117 if (dstFormat == MESA_FORMAT_SIGNED_RGBA8888) {
3118 for (col = 0; col < srcWidth; col++) {
3119 dstUI[col] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
3120 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
3121 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
3122 FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
3123 srcRow += 4;
3124 }
3125 }
3126 else {
3127 for (col = 0; col < srcWidth; col++) {
3128 dstUI[col] = PACK_COLOR_8888_REV( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
3129 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
3130 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
3131 FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
3132 srcRow += 4;
3133 }
3134 }
3135 dstRow += dstRowStride;
3136 }
3137 }
3138 free((void *) tempImage);
3139 }
3140 return GL_TRUE;
3141 }
3142
3143
3144 /**
3145 * Store a combined depth/stencil texture image.
3146 */
3147 static GLboolean
3148 _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
3149 {
3150 const GLuint depthScale = 0xffffff;
3151 const GLint srcRowStride
3152 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3153 / sizeof(GLuint);
3154 GLint img, row;
3155
3156 ASSERT(dstFormat == MESA_FORMAT_Z24_S8);
3157 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
3158 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
3159
3160 if (srcFormat != GL_DEPTH_COMPONENT && ctx->Pixel.DepthScale == 1.0f &&
3161 ctx->Pixel.DepthBias == 0.0f &&
3162 !srcPacking->SwapBytes) {
3163 /* simple path */
3164 memcpy_texture(ctx, dims,
3165 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3166 dstRowStride,
3167 dstImageOffsets,
3168 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3169 srcAddr, srcPacking);
3170 }
3171 else if (srcFormat == GL_DEPTH_COMPONENT) {
3172 /* In case we only upload depth we need to preserve the stencil */
3173 for (img = 0; img < srcDepth; img++) {
3174 GLuint *dstRow = (GLuint *) dstAddr
3175 + dstImageOffsets[dstZoffset + img]
3176 + dstYoffset * dstRowStride / sizeof(GLuint)
3177 + dstXoffset;
3178 const GLuint *src
3179 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
3180 srcWidth, srcHeight,
3181 srcFormat, srcType,
3182 img, 0, 0);
3183 for (row = 0; row < srcHeight; row++) {
3184 GLuint depth[MAX_WIDTH];
3185 GLubyte stencil[MAX_WIDTH];
3186 GLint i;
3187 GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE;
3188
3189 if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
3190 keepstencil = GL_TRUE;
3191 }
3192 else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
3193 keepdepth = GL_TRUE;
3194 }
3195
3196 if (keepdepth == GL_FALSE)
3197 /* the 24 depth bits will be in the low position: */
3198 _mesa_unpack_depth_span(ctx, srcWidth,
3199 GL_UNSIGNED_INT, /* dst type */
3200 keepstencil ? depth : dstRow, /* dst addr */
3201 depthScale,
3202 srcType, src, srcPacking);
3203
3204 if (keepstencil == GL_FALSE)
3205 /* get the 8-bit stencil values */
3206 _mesa_unpack_stencil_span(ctx, srcWidth,
3207 GL_UNSIGNED_BYTE, /* dst type */
3208 stencil, /* dst addr */
3209 srcType, src, srcPacking,
3210 ctx->_ImageTransferState);
3211
3212 for (i = 0; i < srcWidth; i++) {
3213 if (keepstencil)
3214 dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF);
3215 else
3216 dstRow[i] = (dstRow[i] & 0xFFFFFF00) | (stencil[i] & 0xFF);
3217 }
3218
3219 src += srcRowStride;
3220 dstRow += dstRowStride / sizeof(GLuint);
3221 }
3222 }
3223 }
3224 return GL_TRUE;
3225 }
3226
3227
3228 /**
3229 * Store a combined depth/stencil texture image.
3230 */
3231 static GLboolean
3232 _mesa_texstore_s8_z24(TEXSTORE_PARAMS)
3233 {
3234 const GLuint depthScale = 0xffffff;
3235 const GLint srcRowStride
3236 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3237 / sizeof(GLuint);
3238 GLint img, row;
3239
3240 ASSERT(dstFormat == MESA_FORMAT_S8_Z24);
3241 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT ||
3242 srcFormat == GL_DEPTH_COMPONENT ||
3243 srcFormat == GL_STENCIL_INDEX);
3244 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT ||
3245 srcType == GL_UNSIGNED_INT_24_8_EXT);
3246
3247 for (img = 0; img < srcDepth; img++) {
3248 GLuint *dstRow = (GLuint *) dstAddr
3249 + dstImageOffsets[dstZoffset + img]
3250 + dstYoffset * dstRowStride / sizeof(GLuint)
3251 + dstXoffset;
3252 const GLuint *src
3253 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
3254 srcWidth, srcHeight,
3255 srcFormat, srcType,
3256 img, 0, 0);
3257 for (row = 0; row < srcHeight; row++) {
3258 GLuint depth[MAX_WIDTH];
3259 GLubyte stencil[MAX_WIDTH];
3260 GLint i;
3261 GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE;
3262
3263 if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
3264 keepstencil = GL_TRUE;
3265 }
3266 else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
3267 keepdepth = GL_TRUE;
3268 }
3269
3270 if (keepdepth == GL_FALSE)
3271 /* the 24 depth bits will be in the low position: */
3272 _mesa_unpack_depth_span(ctx, srcWidth,
3273 GL_UNSIGNED_INT, /* dst type */
3274 keepstencil ? depth : dstRow, /* dst addr */
3275 depthScale,
3276 srcType, src, srcPacking);
3277
3278 if (keepstencil == GL_FALSE)
3279 /* get the 8-bit stencil values */
3280 _mesa_unpack_stencil_span(ctx, srcWidth,
3281 GL_UNSIGNED_BYTE, /* dst type */
3282 stencil, /* dst addr */
3283 srcType, src, srcPacking,
3284 ctx->_ImageTransferState);
3285
3286 /* merge stencil values into depth values */
3287 for (i = 0; i < srcWidth; i++) {
3288 if (keepstencil)
3289 dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000);
3290 else
3291 dstRow[i] = (dstRow[i] & 0xFFFFFF) | (stencil[i] << 24);
3292
3293 }
3294 src += srcRowStride;
3295 dstRow += dstRowStride / sizeof(GLuint);
3296 }
3297 }
3298 return GL_TRUE;
3299 }
3300
3301
3302 /**
3303 * Store simple 8-bit/value stencil texture data.
3304 */
3305 static GLboolean
3306 _mesa_texstore_s8(TEXSTORE_PARAMS)
3307 {
3308 ASSERT(dstFormat == MESA_FORMAT_S8);
3309 ASSERT(srcFormat == GL_STENCIL_INDEX);
3310
3311 if (!ctx->_ImageTransferState &&
3312 !srcPacking->SwapBytes &&
3313 baseInternalFormat == srcFormat &&
3314 srcType == GL_UNSIGNED_BYTE) {
3315 /* simple memcpy path */
3316 memcpy_texture(ctx, dims,
3317 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3318 dstRowStride,
3319 dstImageOffsets,
3320 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3321 srcAddr, srcPacking);
3322 }
3323 else {
3324 const GLint srcRowStride
3325 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3326 / sizeof(GLuint);
3327 GLint img, row;
3328
3329 for (img = 0; img < srcDepth; img++) {
3330 GLubyte *dstRow = (GLubyte *) dstAddr
3331 + dstImageOffsets[dstZoffset + img]
3332 + dstYoffset * dstRowStride / sizeof(GLuint)
3333 + dstXoffset;
3334 const GLuint *src
3335 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
3336 srcWidth, srcHeight,
3337 srcFormat, srcType,
3338 img, 0, 0);
3339 for (row = 0; row < srcHeight; row++) {
3340 GLubyte stencil[MAX_WIDTH];
3341 GLint i;
3342
3343 /* get the 8-bit stencil values */
3344 _mesa_unpack_stencil_span(ctx, srcWidth,
3345 GL_UNSIGNED_BYTE, /* dst type */
3346 stencil, /* dst addr */
3347 srcType, src, srcPacking,
3348 ctx->_ImageTransferState);
3349 /* merge stencil values into depth values */
3350 for (i = 0; i < srcWidth; i++)
3351 dstRow[i] = stencil[i];
3352
3353 src += srcRowStride;
3354 dstRow += dstRowStride / sizeof(GLubyte);
3355 }
3356 }
3357
3358 }
3359
3360 return GL_TRUE;
3361 }
3362
3363
3364 /**
3365 * Store an image in any of the formats:
3366 * _mesa_texformat_rgba_float32
3367 * _mesa_texformat_rgb_float32
3368 * _mesa_texformat_alpha_float32
3369 * _mesa_texformat_luminance_float32
3370 * _mesa_texformat_luminance_alpha_float32
3371 * _mesa_texformat_intensity_float32
3372 */
3373 static GLboolean
3374 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS)
3375 {
3376 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3377 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3378 const GLint components = _mesa_components_in_format(baseFormat);
3379
3380 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT32 ||
3381 dstFormat == MESA_FORMAT_RGB_FLOAT32 ||
3382 dstFormat == MESA_FORMAT_ALPHA_FLOAT32 ||
3383 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT32 ||
3384 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 ||
3385 dstFormat == MESA_FORMAT_INTENSITY_FLOAT32);
3386 ASSERT(baseInternalFormat == GL_RGBA ||
3387 baseInternalFormat == GL_RGB ||
3388 baseInternalFormat == GL_ALPHA ||
3389 baseInternalFormat == GL_LUMINANCE ||
3390 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3391 baseInternalFormat == GL_INTENSITY);
3392 ASSERT(texelBytes == components * sizeof(GLfloat));
3393
3394 if (!ctx->_ImageTransferState &&
3395 !srcPacking->SwapBytes &&
3396 baseInternalFormat == srcFormat &&
3397 srcType == GL_FLOAT) {
3398 /* simple memcpy path */
3399 memcpy_texture(ctx, dims,
3400 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3401 dstRowStride,
3402 dstImageOffsets,
3403 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3404 srcAddr, srcPacking);
3405 }
3406 else {
3407 /* general path */
3408 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3409 baseInternalFormat,
3410 baseFormat,
3411 srcWidth, srcHeight, srcDepth,
3412 srcFormat, srcType, srcAddr,
3413 srcPacking,
3414 ctx->_ImageTransferState);
3415 const GLfloat *srcRow = tempImage;
3416 GLint bytesPerRow;
3417 GLint img, row;
3418 if (!tempImage)
3419 return GL_FALSE;
3420 bytesPerRow = srcWidth * components * sizeof(GLfloat);
3421 for (img = 0; img < srcDepth; img++) {
3422 GLubyte *dstRow = (GLubyte *) dstAddr
3423 + dstImageOffsets[dstZoffset + img] * texelBytes
3424 + dstYoffset * dstRowStride
3425 + dstXoffset * texelBytes;
3426 for (row = 0; row < srcHeight; row++) {
3427 memcpy(dstRow, srcRow, bytesPerRow);
3428 dstRow += dstRowStride;
3429 srcRow += srcWidth * components;
3430 }
3431 }
3432
3433 free((void *) tempImage);
3434 }
3435 return GL_TRUE;
3436 }
3437
3438
3439
3440 /**
3441 * As above, but store 16-bit floats.
3442 */
3443 static GLboolean
3444 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
3445 {
3446 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3447 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3448 const GLint components = _mesa_components_in_format(baseFormat);
3449
3450 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT16 ||
3451 dstFormat == MESA_FORMAT_RGB_FLOAT16 ||
3452 dstFormat == MESA_FORMAT_ALPHA_FLOAT16 ||
3453 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT16 ||
3454 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 ||
3455 dstFormat == MESA_FORMAT_INTENSITY_FLOAT16);
3456 ASSERT(baseInternalFormat == GL_RGBA ||
3457 baseInternalFormat == GL_RGB ||
3458 baseInternalFormat == GL_ALPHA ||
3459 baseInternalFormat == GL_LUMINANCE ||
3460 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3461 baseInternalFormat == GL_INTENSITY);
3462 ASSERT(texelBytes == components * sizeof(GLhalfARB));
3463
3464 if (!ctx->_ImageTransferState &&
3465 !srcPacking->SwapBytes &&
3466 baseInternalFormat == srcFormat &&
3467 srcType == GL_HALF_FLOAT_ARB) {
3468 /* simple memcpy path */
3469 memcpy_texture(ctx, dims,
3470 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3471 dstRowStride,
3472 dstImageOffsets,
3473 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3474 srcAddr, srcPacking);
3475 }
3476 else {
3477 /* general path */
3478 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3479 baseInternalFormat,
3480 baseFormat,
3481 srcWidth, srcHeight, srcDepth,
3482 srcFormat, srcType, srcAddr,
3483 srcPacking,
3484 ctx->_ImageTransferState);
3485 const GLfloat *src = tempImage;
3486 GLint img, row;
3487 if (!tempImage)
3488 return GL_FALSE;
3489 for (img = 0; img < srcDepth; img++) {
3490 GLubyte *dstRow = (GLubyte *) dstAddr
3491 + dstImageOffsets[dstZoffset + img] * texelBytes
3492 + dstYoffset * dstRowStride
3493 + dstXoffset * texelBytes;
3494 for (row = 0; row < srcHeight; row++) {
3495 GLhalfARB *dstTexel = (GLhalfARB *) dstRow;
3496 GLint i;
3497 for (i = 0; i < srcWidth * components; i++) {
3498 dstTexel[i] = _mesa_float_to_half(src[i]);
3499 }
3500 dstRow += dstRowStride;
3501 src += srcWidth * components;
3502 }
3503 }
3504
3505 free((void *) tempImage);
3506 }
3507 return GL_TRUE;
3508 }
3509
3510
3511 /* non-normalized, signed int8 */
3512 static GLboolean
3513 _mesa_texstore_rgba_int8(TEXSTORE_PARAMS)
3514 {
3515 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3516 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3517 const GLint components = _mesa_components_in_format(baseFormat);
3518
3519 ASSERT(dstFormat == MESA_FORMAT_RGBA_INT8);
3520 ASSERT(baseInternalFormat == GL_RGBA ||
3521 baseInternalFormat == GL_RGB ||
3522 baseInternalFormat == GL_ALPHA ||
3523 baseInternalFormat == GL_LUMINANCE ||
3524 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3525 baseInternalFormat == GL_INTENSITY);
3526 ASSERT(texelBytes == components * sizeof(GLbyte));
3527
3528 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3529 * to integer formats.
3530 */
3531 if (!srcPacking->SwapBytes &&
3532 baseInternalFormat == srcFormat &&
3533 srcType == GL_BYTE) {
3534 /* simple memcpy path */
3535 memcpy_texture(ctx, dims,
3536 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3537 dstRowStride,
3538 dstImageOffsets,
3539 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3540 srcAddr, srcPacking);
3541 }
3542 else {
3543 /* general path */
3544 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3545 baseInternalFormat,
3546 baseFormat,
3547 srcWidth, srcHeight, srcDepth,
3548 srcFormat, srcType, srcAddr,
3549 srcPacking, 0x0);
3550 const GLfloat *src = tempImage;
3551 GLint img, row;
3552 if (!tempImage)
3553 return GL_FALSE;
3554 for (img = 0; img < srcDepth; img++) {
3555 GLubyte *dstRow = (GLubyte *) dstAddr
3556 + dstImageOffsets[dstZoffset + img] * texelBytes
3557 + dstYoffset * dstRowStride
3558 + dstXoffset * texelBytes;
3559 for (row = 0; row < srcHeight; row++) {
3560 GLbyte *dstTexel = (GLbyte *) dstRow;
3561 GLint i;
3562 for (i = 0; i < srcWidth * components; i++) {
3563 dstTexel[i] = (GLbyte) src[i];
3564 }
3565 dstRow += dstRowStride;
3566 src += srcWidth * components;
3567 }
3568 }
3569
3570 free((void *) tempImage);
3571 }
3572 return GL_TRUE;
3573 }
3574
3575
3576 /* non-normalized, signed int16 */
3577 static GLboolean
3578 _mesa_texstore_rgba_int16(TEXSTORE_PARAMS)
3579 {
3580 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3581 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3582 const GLint components = _mesa_components_in_format(baseFormat);
3583
3584 ASSERT(dstFormat == MESA_FORMAT_RGBA_INT16);
3585 ASSERT(baseInternalFormat == GL_RGBA ||
3586 baseInternalFormat == GL_RGB ||
3587 baseInternalFormat == GL_ALPHA ||
3588 baseInternalFormat == GL_LUMINANCE ||
3589 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3590 baseInternalFormat == GL_INTENSITY);
3591 ASSERT(texelBytes == components * sizeof(GLshort));
3592
3593 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3594 * to integer formats.
3595 */
3596 if (!srcPacking->SwapBytes &&
3597 baseInternalFormat == srcFormat &&
3598 srcType == GL_SHORT) {
3599 /* simple memcpy path */
3600 memcpy_texture(ctx, dims,
3601 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3602 dstRowStride,
3603 dstImageOffsets,
3604 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3605 srcAddr, srcPacking);
3606 }
3607 else {
3608 /* general path */
3609 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3610 baseInternalFormat,
3611 baseFormat,
3612 srcWidth, srcHeight, srcDepth,
3613 srcFormat, srcType, srcAddr,
3614 srcPacking, 0x0);
3615 const GLfloat *src = tempImage;
3616 GLint img, row;
3617 if (!tempImage)
3618 return GL_FALSE;
3619 for (img = 0; img < srcDepth; img++) {
3620 GLubyte *dstRow = (GLubyte *) dstAddr
3621 + dstImageOffsets[dstZoffset + img] * texelBytes
3622 + dstYoffset * dstRowStride
3623 + dstXoffset * texelBytes;
3624 for (row = 0; row < srcHeight; row++) {
3625 GLshort *dstTexel = (GLshort *) dstRow;
3626 GLint i;
3627 for (i = 0; i < srcWidth * components; i++) {
3628 dstTexel[i] = (GLint) src[i];
3629 }
3630 dstRow += dstRowStride;
3631 src += srcWidth * components;
3632 }
3633 }
3634
3635 free((void *) tempImage);
3636 }
3637 return GL_TRUE;
3638 }
3639
3640
3641 /* non-normalized, signed int32 */
3642 static GLboolean
3643 _mesa_texstore_rgba_int32(TEXSTORE_PARAMS)
3644 {
3645 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3646 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3647 const GLint components = _mesa_components_in_format(baseFormat);
3648
3649 ASSERT(dstFormat == MESA_FORMAT_RGBA_INT32);
3650 ASSERT(baseInternalFormat == GL_RGBA ||
3651 baseInternalFormat == GL_RGB ||
3652 baseInternalFormat == GL_ALPHA ||
3653 baseInternalFormat == GL_LUMINANCE ||
3654 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3655 baseInternalFormat == GL_INTENSITY);
3656 ASSERT(texelBytes == components * sizeof(GLint));
3657
3658 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3659 * to integer formats.
3660 */
3661 if (!srcPacking->SwapBytes &&
3662 baseInternalFormat == srcFormat &&
3663 srcType == GL_INT) {
3664 /* simple memcpy path */
3665 memcpy_texture(ctx, dims,
3666 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3667 dstRowStride,
3668 dstImageOffsets,
3669 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3670 srcAddr, srcPacking);
3671 }
3672 else {
3673 /* general path */
3674 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3675 baseInternalFormat,
3676 baseFormat,
3677 srcWidth, srcHeight, srcDepth,
3678 srcFormat, srcType, srcAddr,
3679 srcPacking, 0x0);
3680 const GLfloat *src = tempImage;
3681 GLint img, row;
3682 if (!tempImage)
3683 return GL_FALSE;
3684 for (img = 0; img < srcDepth; img++) {
3685 GLubyte *dstRow = (GLubyte *) dstAddr
3686 + dstImageOffsets[dstZoffset + img] * texelBytes
3687 + dstYoffset * dstRowStride
3688 + dstXoffset * texelBytes;
3689 for (row = 0; row < srcHeight; row++) {
3690 GLint *dstTexel = (GLint *) dstRow;
3691 GLint i;
3692 for (i = 0; i < srcWidth * components; i++) {
3693 dstTexel[i] = (GLint) src[i];
3694 }
3695 dstRow += dstRowStride;
3696 src += srcWidth * components;
3697 }
3698 }
3699
3700 free((void *) tempImage);
3701 }
3702 return GL_TRUE;
3703 }
3704
3705
3706 /* non-normalized, unsigned int8 */
3707 static GLboolean
3708 _mesa_texstore_rgba_uint8(TEXSTORE_PARAMS)
3709 {
3710 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3711 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3712 const GLint components = _mesa_components_in_format(baseFormat);
3713
3714 ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT8);
3715 ASSERT(baseInternalFormat == GL_RGBA ||
3716 baseInternalFormat == GL_RGB ||
3717 baseInternalFormat == GL_ALPHA ||
3718 baseInternalFormat == GL_LUMINANCE ||
3719 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3720 baseInternalFormat == GL_INTENSITY);
3721 ASSERT(texelBytes == components * sizeof(GLubyte));
3722
3723 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3724 * to integer formats.
3725 */
3726 if (!srcPacking->SwapBytes &&
3727 baseInternalFormat == srcFormat &&
3728 srcType == GL_UNSIGNED_BYTE) {
3729 /* simple memcpy path */
3730 memcpy_texture(ctx, dims,
3731 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3732 dstRowStride,
3733 dstImageOffsets,
3734 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3735 srcAddr, srcPacking);
3736 }
3737 else {
3738 /* general path */
3739 const GLuint *tempImage =
3740 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3741 srcWidth, srcHeight, srcDepth,
3742 srcFormat, srcType, srcAddr, srcPacking);
3743 const GLuint *src = tempImage;
3744 GLint img, row;
3745 if (!tempImage)
3746 return GL_FALSE;
3747 for (img = 0; img < srcDepth; img++) {
3748 GLubyte *dstRow = (GLubyte *) dstAddr
3749 + dstImageOffsets[dstZoffset + img] * texelBytes
3750 + dstYoffset * dstRowStride
3751 + dstXoffset * texelBytes;
3752 for (row = 0; row < srcHeight; row++) {
3753 GLubyte *dstTexel = (GLubyte *) dstRow;
3754 GLint i;
3755 for (i = 0; i < srcWidth * components; i++) {
3756 dstTexel[i] = (GLubyte) CLAMP(src[i], 0, 0xff);
3757 }
3758 dstRow += dstRowStride;
3759 src += srcWidth * components;
3760 }
3761 }
3762
3763 free((void *) tempImage);
3764 }
3765 return GL_TRUE;
3766 }
3767
3768
3769 /* non-normalized, unsigned int16 */
3770 static GLboolean
3771 _mesa_texstore_rgba_uint16(TEXSTORE_PARAMS)
3772 {
3773 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3774 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3775 const GLint components = _mesa_components_in_format(baseFormat);
3776
3777 ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT16);
3778 ASSERT(baseInternalFormat == GL_RGBA ||
3779 baseInternalFormat == GL_RGB ||
3780 baseInternalFormat == GL_ALPHA ||
3781 baseInternalFormat == GL_LUMINANCE ||
3782 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3783 baseInternalFormat == GL_INTENSITY);
3784 ASSERT(texelBytes == components * sizeof(GLushort));
3785
3786 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3787 * to integer formats.
3788 */
3789 if (!srcPacking->SwapBytes &&
3790 baseInternalFormat == srcFormat &&
3791 srcType == GL_UNSIGNED_SHORT) {
3792 /* simple memcpy path */
3793 memcpy_texture(ctx, dims,
3794 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3795 dstRowStride,
3796 dstImageOffsets,
3797 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3798 srcAddr, srcPacking);
3799 }
3800 else {
3801 /* general path */
3802 const GLuint *tempImage =
3803 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3804 srcWidth, srcHeight, srcDepth,
3805 srcFormat, srcType, srcAddr, srcPacking);
3806 const GLuint *src = tempImage;
3807 GLint img, row;
3808 if (!tempImage)
3809 return GL_FALSE;
3810 for (img = 0; img < srcDepth; img++) {
3811 GLubyte *dstRow = (GLubyte *) dstAddr
3812 + dstImageOffsets[dstZoffset + img] * texelBytes
3813 + dstYoffset * dstRowStride
3814 + dstXoffset * texelBytes;
3815 for (row = 0; row < srcHeight; row++) {
3816 GLushort *dstTexel = (GLushort *) dstRow;
3817 GLint i;
3818 for (i = 0; i < srcWidth * components; i++) {
3819 dstTexel[i] = (GLushort) CLAMP(src[i], 0, 0xffff);
3820 }
3821 dstRow += dstRowStride;
3822 src += srcWidth * components;
3823 }
3824 }
3825
3826 free((void *) tempImage);
3827 }
3828 return GL_TRUE;
3829 }
3830
3831
3832 /* non-normalized, unsigned int32 */
3833 static GLboolean
3834 _mesa_texstore_rgba_uint32(TEXSTORE_PARAMS)
3835 {
3836 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3837 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3838 const GLint components = _mesa_components_in_format(baseFormat);
3839
3840 ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT32);
3841 ASSERT(baseInternalFormat == GL_RGBA ||
3842 baseInternalFormat == GL_RGB ||
3843 baseInternalFormat == GL_ALPHA ||
3844 baseInternalFormat == GL_LUMINANCE ||
3845 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3846 baseInternalFormat == GL_INTENSITY);
3847 ASSERT(texelBytes == components * sizeof(GLuint));
3848
3849 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3850 * to integer formats.
3851 */
3852 if (!srcPacking->SwapBytes &&
3853 baseInternalFormat == srcFormat &&
3854 srcType == GL_UNSIGNED_INT) {
3855 /* simple memcpy path */
3856 memcpy_texture(ctx, dims,
3857 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3858 dstRowStride,
3859 dstImageOffsets,
3860 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3861 srcAddr, srcPacking);
3862 }
3863 else {
3864 /* general path */
3865 const GLuint *tempImage =
3866 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3867 srcWidth, srcHeight, srcDepth,
3868 srcFormat, srcType, srcAddr, srcPacking);
3869 const GLuint *src = tempImage;
3870 GLint img, row;
3871 if (!tempImage)
3872 return GL_FALSE;
3873 for (img = 0; img < srcDepth; img++) {
3874 GLubyte *dstRow = (GLubyte *) dstAddr
3875 + dstImageOffsets[dstZoffset + img] * texelBytes
3876 + dstYoffset * dstRowStride
3877 + dstXoffset * texelBytes;
3878 for (row = 0; row < srcHeight; row++) {
3879 GLuint *dstTexel = (GLuint *) dstRow;
3880 GLint i;
3881 for (i = 0; i < srcWidth * components; i++) {
3882 dstTexel[i] = src[i];
3883 }
3884 dstRow += dstRowStride;
3885 src += srcWidth * components;
3886 }
3887 }
3888
3889 free((void *) tempImage);
3890 }
3891 return GL_TRUE;
3892 }
3893
3894
3895
3896
3897 #if FEATURE_EXT_texture_sRGB
3898 static GLboolean
3899 _mesa_texstore_srgb8(TEXSTORE_PARAMS)
3900 {
3901 gl_format newDstFormat;
3902 GLboolean k;
3903
3904 ASSERT(dstFormat == MESA_FORMAT_SRGB8);
3905
3906 /* reuse normal rgb texstore code */
3907 newDstFormat = MESA_FORMAT_RGB888;
3908
3909 k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat,
3910 newDstFormat, dstAddr,
3911 dstXoffset, dstYoffset, dstZoffset,
3912 dstRowStride, dstImageOffsets,
3913 srcWidth, srcHeight, srcDepth,
3914 srcFormat, srcType,
3915 srcAddr, srcPacking);
3916 return k;
3917 }
3918
3919
3920 static GLboolean
3921 _mesa_texstore_srgba8(TEXSTORE_PARAMS)
3922 {
3923 gl_format newDstFormat;
3924 GLboolean k;
3925
3926 ASSERT(dstFormat == MESA_FORMAT_SRGBA8);
3927
3928 /* reuse normal rgba texstore code */
3929 newDstFormat = MESA_FORMAT_RGBA8888;
3930 k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
3931 newDstFormat, dstAddr,
3932 dstXoffset, dstYoffset, dstZoffset,
3933 dstRowStride, dstImageOffsets,
3934 srcWidth, srcHeight, srcDepth,
3935 srcFormat, srcType,
3936 srcAddr, srcPacking);
3937 return k;
3938 }
3939
3940
3941 static GLboolean
3942 _mesa_texstore_sargb8(TEXSTORE_PARAMS)
3943 {
3944 gl_format newDstFormat;
3945 GLboolean k;
3946
3947 ASSERT(dstFormat == MESA_FORMAT_SARGB8);
3948
3949 /* reuse normal rgba texstore code */
3950 newDstFormat = MESA_FORMAT_ARGB8888;
3951
3952 k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat,
3953 newDstFormat, dstAddr,
3954 dstXoffset, dstYoffset, dstZoffset,
3955 dstRowStride, dstImageOffsets,
3956 srcWidth, srcHeight, srcDepth,
3957 srcFormat, srcType,
3958 srcAddr, srcPacking);
3959 return k;
3960 }
3961
3962
3963 static GLboolean
3964 _mesa_texstore_sl8(TEXSTORE_PARAMS)
3965 {
3966 gl_format newDstFormat;
3967 GLboolean k;
3968
3969 ASSERT(dstFormat == MESA_FORMAT_SL8);
3970
3971 newDstFormat = MESA_FORMAT_L8;
3972
3973 /* _mesa_textore_a8 handles luminance8 too */
3974 k = _mesa_texstore_a8(ctx, dims, baseInternalFormat,
3975 newDstFormat, dstAddr,
3976 dstXoffset, dstYoffset, dstZoffset,
3977 dstRowStride, dstImageOffsets,
3978 srcWidth, srcHeight, srcDepth,
3979 srcFormat, srcType,
3980 srcAddr, srcPacking);
3981 return k;
3982 }
3983
3984
3985 static GLboolean
3986 _mesa_texstore_sla8(TEXSTORE_PARAMS)
3987 {
3988 gl_format newDstFormat;
3989 GLboolean k;
3990
3991 ASSERT(dstFormat == MESA_FORMAT_SLA8);
3992
3993 /* reuse normal luminance/alpha texstore code */
3994 newDstFormat = MESA_FORMAT_AL88;
3995
3996 k = _mesa_texstore_unorm88(ctx, dims, baseInternalFormat,
3997 newDstFormat, dstAddr,
3998 dstXoffset, dstYoffset, dstZoffset,
3999 dstRowStride, dstImageOffsets,
4000 srcWidth, srcHeight, srcDepth,
4001 srcFormat, srcType,
4002 srcAddr, srcPacking);
4003 return k;
4004 }
4005
4006 #else
4007
4008 /* these are used only in texstore_funcs[] below */
4009 #define _mesa_texstore_srgb8 NULL
4010 #define _mesa_texstore_srgba8 NULL
4011 #define _mesa_texstore_sargb8 NULL
4012 #define _mesa_texstore_sl8 NULL
4013 #define _mesa_texstore_sla8 NULL
4014
4015 #endif /* FEATURE_EXT_texture_sRGB */
4016
4017
4018
4019
4020 /**
4021 * Table mapping MESA_FORMAT_* to _mesa_texstore_*()
4022 * XXX this is somewhat temporary.
4023 */
4024 static const struct {
4025 gl_format Name;
4026 StoreTexImageFunc Store;
4027 }
4028 texstore_funcs[MESA_FORMAT_COUNT] =
4029 {
4030 { MESA_FORMAT_NONE, NULL },
4031 { MESA_FORMAT_RGBA8888, _mesa_texstore_rgba8888 },
4032 { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 },
4033 { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 },
4034 { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 },
4035 { MESA_FORMAT_XRGB8888, _mesa_texstore_argb8888 },
4036 { MESA_FORMAT_XRGB8888_REV, _mesa_texstore_argb8888 },
4037 { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 },
4038 { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 },
4039 { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 },
4040 { MESA_FORMAT_RGB565_REV, _mesa_texstore_rgb565 },
4041 { MESA_FORMAT_ARGB4444, _mesa_texstore_argb4444 },
4042 { MESA_FORMAT_ARGB4444_REV, _mesa_texstore_argb4444 },
4043 { MESA_FORMAT_RGBA5551, _mesa_texstore_rgba5551 },
4044 { MESA_FORMAT_ARGB1555, _mesa_texstore_argb1555 },
4045 { MESA_FORMAT_ARGB1555_REV, _mesa_texstore_argb1555 },
4046 { MESA_FORMAT_AL44, _mesa_texstore_unorm44 },
4047 { MESA_FORMAT_AL88, _mesa_texstore_unorm88 },
4048 { MESA_FORMAT_AL88_REV, _mesa_texstore_unorm88 },
4049 { MESA_FORMAT_AL1616, _mesa_texstore_unorm1616 },
4050 { MESA_FORMAT_AL1616_REV, _mesa_texstore_unorm1616 },
4051 { MESA_FORMAT_RGB332, _mesa_texstore_rgb332 },
4052 { MESA_FORMAT_A8, _mesa_texstore_a8 },
4053 { MESA_FORMAT_A16, _mesa_texstore_unorm16 },
4054 { MESA_FORMAT_L8, _mesa_texstore_a8 },
4055 { MESA_FORMAT_L16, _mesa_texstore_unorm16 },
4056 { MESA_FORMAT_I8, _mesa_texstore_a8 },
4057 { MESA_FORMAT_I16, _mesa_texstore_unorm16 },
4058 { MESA_FORMAT_CI8, _mesa_texstore_ci8 },
4059 { MESA_FORMAT_YCBCR, _mesa_texstore_ycbcr },
4060 { MESA_FORMAT_YCBCR_REV, _mesa_texstore_ycbcr },
4061 { MESA_FORMAT_R8, _mesa_texstore_a8 },
4062 { MESA_FORMAT_RG88, _mesa_texstore_unorm88 },
4063 { MESA_FORMAT_RG88_REV, _mesa_texstore_unorm88 },
4064 { MESA_FORMAT_R16, _mesa_texstore_unorm16 },
4065 { MESA_FORMAT_RG1616, _mesa_texstore_unorm1616 },
4066 { MESA_FORMAT_RG1616_REV, _mesa_texstore_unorm1616 },
4067 { MESA_FORMAT_ARGB2101010, _mesa_texstore_argb2101010 },
4068 { MESA_FORMAT_Z24_S8, _mesa_texstore_z24_s8 },
4069 { MESA_FORMAT_S8_Z24, _mesa_texstore_s8_z24 },
4070 { MESA_FORMAT_Z16, _mesa_texstore_z16 },
4071 { MESA_FORMAT_X8_Z24, _mesa_texstore_x8_z24 },
4072 { MESA_FORMAT_Z24_X8, _mesa_texstore_z24_x8 },
4073 { MESA_FORMAT_Z32, _mesa_texstore_z32 },
4074 { MESA_FORMAT_S8, _mesa_texstore_s8 },
4075 { MESA_FORMAT_SRGB8, _mesa_texstore_srgb8 },
4076 { MESA_FORMAT_SRGBA8, _mesa_texstore_srgba8 },
4077 { MESA_FORMAT_SARGB8, _mesa_texstore_sargb8 },
4078 { MESA_FORMAT_SL8, _mesa_texstore_sl8 },
4079 { MESA_FORMAT_SLA8, _mesa_texstore_sla8 },
4080 { MESA_FORMAT_SRGB_DXT1, _mesa_texstore_rgb_dxt1 },
4081 { MESA_FORMAT_SRGBA_DXT1, _mesa_texstore_rgba_dxt1 },
4082 { MESA_FORMAT_SRGBA_DXT3, _mesa_texstore_rgba_dxt3 },
4083 { MESA_FORMAT_SRGBA_DXT5, _mesa_texstore_rgba_dxt5 },
4084 { MESA_FORMAT_RGB_FXT1, _mesa_texstore_rgb_fxt1 },
4085 { MESA_FORMAT_RGBA_FXT1, _mesa_texstore_rgba_fxt1 },
4086 { MESA_FORMAT_RGB_DXT1, _mesa_texstore_rgb_dxt1 },
4087 { MESA_FORMAT_RGBA_DXT1, _mesa_texstore_rgba_dxt1 },
4088 { MESA_FORMAT_RGBA_DXT3, _mesa_texstore_rgba_dxt3 },
4089 { MESA_FORMAT_RGBA_DXT5, _mesa_texstore_rgba_dxt5 },
4090 { MESA_FORMAT_RGBA_FLOAT32, _mesa_texstore_rgba_float32 },
4091 { MESA_FORMAT_RGBA_FLOAT16, _mesa_texstore_rgba_float16 },
4092 { MESA_FORMAT_RGB_FLOAT32, _mesa_texstore_rgba_float32 },
4093 { MESA_FORMAT_RGB_FLOAT16, _mesa_texstore_rgba_float16 },
4094 { MESA_FORMAT_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
4095 { MESA_FORMAT_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
4096 { MESA_FORMAT_LUMINANCE_FLOAT32, _mesa_texstore_rgba_float32 },
4097 { MESA_FORMAT_LUMINANCE_FLOAT16, _mesa_texstore_rgba_float16 },
4098 { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
4099 { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
4100 { MESA_FORMAT_INTENSITY_FLOAT32, _mesa_texstore_rgba_float32 },
4101 { MESA_FORMAT_INTENSITY_FLOAT16, _mesa_texstore_rgba_float16 },
4102
4103 { MESA_FORMAT_RGBA_INT8, _mesa_texstore_rgba_int8 },
4104 { MESA_FORMAT_RGBA_INT16, _mesa_texstore_rgba_int16 },
4105 { MESA_FORMAT_RGBA_INT32, _mesa_texstore_rgba_int32 },
4106 { MESA_FORMAT_RGBA_UINT8, _mesa_texstore_rgba_uint8 },
4107 { MESA_FORMAT_RGBA_UINT16, _mesa_texstore_rgba_uint16 },
4108 { MESA_FORMAT_RGBA_UINT32, _mesa_texstore_rgba_uint32 },
4109
4110 { MESA_FORMAT_DUDV8, _mesa_texstore_dudv8 },
4111
4112 { MESA_FORMAT_SIGNED_R8, _mesa_texstore_signed_r8 },
4113 { MESA_FORMAT_SIGNED_RG88, _mesa_texstore_signed_rg88 },
4114 { MESA_FORMAT_SIGNED_RGBX8888, _mesa_texstore_signed_rgbx8888 },
4115
4116 { MESA_FORMAT_SIGNED_RGBA8888, _mesa_texstore_signed_rgba8888 },
4117 { MESA_FORMAT_SIGNED_RGBA8888_REV, _mesa_texstore_signed_rgba8888 },
4118
4119 { MESA_FORMAT_SIGNED_R_16, _mesa_texstore_signed_rgba_16 },
4120 { MESA_FORMAT_SIGNED_RG_16, _mesa_texstore_signed_rgba_16 },
4121 { MESA_FORMAT_SIGNED_RGB_16, _mesa_texstore_signed_rgba_16 },
4122 { MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 },
4123 { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 }
4124 };
4125
4126
4127 static GLboolean
4128 _mesa_texstore_null(TEXSTORE_PARAMS)
4129 {
4130 (void) ctx; (void) dims;
4131 (void) baseInternalFormat;
4132 (void) dstFormat;
4133 (void) dstAddr;
4134 (void) dstXoffset; (void) dstYoffset; (void) dstZoffset;
4135 (void) dstRowStride; (void) dstImageOffsets;
4136 (void) srcWidth; (void) srcHeight; (void) srcDepth;
4137 (void) srcFormat; (void) srcType;
4138 (void) srcAddr;
4139 (void) srcPacking;
4140
4141 /* should never happen */
4142 _mesa_problem(NULL, "_mesa_texstore_null() is called");
4143 return GL_FALSE;
4144 }
4145
4146
4147 /**
4148 * Return the StoreTexImageFunc pointer to store an image in the given format.
4149 */
4150 static StoreTexImageFunc
4151 _mesa_get_texstore_func(gl_format format)
4152 {
4153 #ifdef DEBUG
4154 GLuint i;
4155 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
4156 ASSERT(texstore_funcs[i].Name == i);
4157 }
4158 #endif
4159 ASSERT(texstore_funcs[format].Name == format);
4160
4161 if (texstore_funcs[format].Store)
4162 return texstore_funcs[format].Store;
4163 else
4164 return _mesa_texstore_null;
4165 }
4166
4167
4168 /**
4169 * Store user data into texture memory.
4170 * Called via glTex[Sub]Image1/2/3D()
4171 */
4172 GLboolean
4173 _mesa_texstore(TEXSTORE_PARAMS)
4174 {
4175 StoreTexImageFunc storeImage;
4176 GLboolean success;
4177
4178 storeImage = _mesa_get_texstore_func(dstFormat);
4179
4180 success = storeImage(ctx, dims, baseInternalFormat,
4181 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
4182 dstRowStride, dstImageOffsets,
4183 srcWidth, srcHeight, srcDepth,
4184 srcFormat, srcType, srcAddr, srcPacking);
4185 return success;
4186 }
4187
4188
4189 /**
4190 * Check if an unpack PBO is active prior to fetching a texture image.
4191 * If so, do bounds checking and map the buffer into main memory.
4192 * Any errors detected will be recorded.
4193 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
4194 */
4195 const GLvoid *
4196 _mesa_validate_pbo_teximage(struct gl_context *ctx, GLuint dimensions,
4197 GLsizei width, GLsizei height, GLsizei depth,
4198 GLenum format, GLenum type, const GLvoid *pixels,
4199 const struct gl_pixelstore_attrib *unpack,
4200 const char *funcName)
4201 {
4202 GLubyte *buf;
4203
4204 if (!_mesa_is_bufferobj(unpack->BufferObj)) {
4205 /* no PBO */
4206 return pixels;
4207 }
4208 if (!_mesa_validate_pbo_access(dimensions, unpack, width, height, depth,
4209 format, type, pixels)) {
4210 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access)");
4211 return NULL;
4212 }
4213
4214 buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
4215 GL_READ_ONLY_ARB, unpack->BufferObj);
4216 if (!buf) {
4217 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped)");
4218 return NULL;
4219 }
4220
4221 return ADD_POINTERS(buf, pixels);
4222 }
4223
4224
4225 /**
4226 * Check if an unpack PBO is active prior to fetching a compressed texture
4227 * image.
4228 * If so, do bounds checking and map the buffer into main memory.
4229 * Any errors detected will be recorded.
4230 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
4231 */
4232 const GLvoid *
4233 _mesa_validate_pbo_compressed_teximage(struct gl_context *ctx,
4234 GLsizei imageSize, const GLvoid *pixels,
4235 const struct gl_pixelstore_attrib *packing,
4236 const char *funcName)
4237 {
4238 GLubyte *buf;
4239
4240 if (!_mesa_is_bufferobj(packing->BufferObj)) {
4241 /* not using a PBO - return pointer unchanged */
4242 return pixels;
4243 }
4244 if ((const GLubyte *) pixels + imageSize >
4245 ((const GLubyte *) 0) + packing->BufferObj->Size) {
4246 /* out of bounds read! */
4247 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access)");
4248 return NULL;
4249 }
4250
4251 buf = (GLubyte*) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
4252 GL_READ_ONLY_ARB, packing->BufferObj);
4253 if (!buf) {
4254 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped");
4255 return NULL;
4256 }
4257
4258 return ADD_POINTERS(buf, pixels);
4259 }
4260
4261
4262 /**
4263 * This function must be called after either of the validate_pbo_*_teximage()
4264 * functions. It unmaps the PBO buffer if it was mapped earlier.
4265 */
4266 void
4267 _mesa_unmap_teximage_pbo(struct gl_context *ctx,
4268 const struct gl_pixelstore_attrib *unpack)
4269 {
4270 if (_mesa_is_bufferobj(unpack->BufferObj)) {
4271 ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
4272 unpack->BufferObj);
4273 }
4274 }
4275
4276
4277 /** Return texture size in bytes */
4278 static GLuint
4279 texture_size(const struct gl_texture_image *texImage)
4280 {
4281 GLuint sz = _mesa_format_image_size(texImage->TexFormat, texImage->Width,
4282 texImage->Height, texImage->Depth);
4283 return sz;
4284 }
4285
4286
4287 /** Return row stride in bytes */
4288 static GLuint
4289 texture_row_stride(const struct gl_texture_image *texImage)
4290 {
4291 GLuint stride = _mesa_format_row_stride(texImage->TexFormat,
4292 texImage->Width);
4293 return stride;
4294 }
4295
4296
4297
4298 /**
4299 * This is the software fallback for Driver.TexImage1D()
4300 * and Driver.CopyTexImage1D().
4301 * \sa _mesa_store_teximage2d()
4302 */
4303 void
4304 _mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
4305 GLint internalFormat,
4306 GLint width, GLint border,
4307 GLenum format, GLenum type, const GLvoid *pixels,
4308 const struct gl_pixelstore_attrib *packing,
4309 struct gl_texture_object *texObj,
4310 struct gl_texture_image *texImage)
4311 {
4312 GLuint sizeInBytes;
4313 (void) border;
4314
4315 /* allocate memory */
4316 sizeInBytes = texture_size(texImage);
4317 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
4318 if (!texImage->Data) {
4319 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
4320 return;
4321 }
4322
4323 pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
4324 pixels, packing, "glTexImage1D");
4325 if (!pixels) {
4326 /* Note: we check for a NULL image pointer here, _after_ we allocated
4327 * memory for the texture. That's what the GL spec calls for.
4328 */
4329 return;
4330 }
4331 else {
4332 const GLint dstRowStride = 0;
4333 GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat,
4334 texImage->TexFormat,
4335 texImage->Data,
4336 0, 0, 0, /* dstX/Y/Zoffset */
4337 dstRowStride,
4338 texImage->ImageOffsets,
4339 width, 1, 1,
4340 format, type, pixels, packing);
4341 if (!success) {
4342 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
4343 }
4344 }
4345
4346 _mesa_unmap_teximage_pbo(ctx, packing);
4347 }
4348
4349
4350 /**
4351 * This is the software fallback for Driver.TexImage2D()
4352 * and Driver.CopyTexImage2D().
4353 *
4354 * This function is oriented toward storing images in main memory, rather
4355 * than VRAM. Device driver's can easily plug in their own replacement.
4356 */
4357 void
4358 _mesa_store_teximage2d(struct gl_context *ctx, GLenum target, GLint level,
4359 GLint internalFormat,
4360 GLint width, GLint height, GLint border,
4361 GLenum format, GLenum type, const void *pixels,
4362 const struct gl_pixelstore_attrib *packing,
4363 struct gl_texture_object *texObj,
4364 struct gl_texture_image *texImage)
4365 {
4366 GLuint sizeInBytes;
4367 (void) border;
4368
4369 /* allocate memory */
4370 sizeInBytes = texture_size(texImage);
4371 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
4372 if (!texImage->Data) {
4373 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
4374 return;
4375 }
4376
4377 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
4378 pixels, packing, "glTexImage2D");
4379 if (!pixels) {
4380 /* Note: we check for a NULL image pointer here, _after_ we allocated
4381 * memory for the texture. That's what the GL spec calls for.
4382 */
4383 return;
4384 }
4385 else {
4386 GLint dstRowStride = texture_row_stride(texImage);
4387 GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat,
4388 texImage->TexFormat,
4389 texImage->Data,
4390 0, 0, 0, /* dstX/Y/Zoffset */
4391 dstRowStride,
4392 texImage->ImageOffsets,
4393 width, height, 1,
4394 format, type, pixels, packing);
4395 if (!success) {
4396 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
4397 }
4398 }
4399
4400 _mesa_unmap_teximage_pbo(ctx, packing);
4401 }
4402
4403
4404
4405 /**
4406 * This is the software fallback for Driver.TexImage3D()
4407 * and Driver.CopyTexImage3D().
4408 * \sa _mesa_store_teximage2d()
4409 */
4410 void
4411 _mesa_store_teximage3d(struct gl_context *ctx, GLenum target, GLint level,
4412 GLint internalFormat,
4413 GLint width, GLint height, GLint depth, GLint border,
4414 GLenum format, GLenum type, const void *pixels,
4415 const struct gl_pixelstore_attrib *packing,
4416 struct gl_texture_object *texObj,
4417 struct gl_texture_image *texImage)
4418 {
4419 GLuint sizeInBytes;
4420 (void) border;
4421
4422 /* allocate memory */
4423 sizeInBytes = texture_size(texImage);
4424 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
4425 if (!texImage->Data) {
4426 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
4427 return;
4428 }
4429
4430 pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
4431 type, pixels, packing, "glTexImage3D");
4432 if (!pixels) {
4433 /* Note: we check for a NULL image pointer here, _after_ we allocated
4434 * memory for the texture. That's what the GL spec calls for.
4435 */
4436 return;
4437 }
4438 else {
4439 GLint dstRowStride = texture_row_stride(texImage);
4440 GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat,
4441 texImage->TexFormat,
4442 texImage->Data,
4443 0, 0, 0, /* dstX/Y/Zoffset */
4444 dstRowStride,
4445 texImage->ImageOffsets,
4446 width, height, depth,
4447 format, type, pixels, packing);
4448 if (!success) {
4449 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
4450 }
4451 }
4452
4453 _mesa_unmap_teximage_pbo(ctx, packing);
4454 }
4455
4456
4457
4458
4459 /*
4460 * This is the software fallback for Driver.TexSubImage1D()
4461 * and Driver.CopyTexSubImage1D().
4462 */
4463 void
4464 _mesa_store_texsubimage1d(struct gl_context *ctx, GLenum target, GLint level,
4465 GLint xoffset, GLint width,
4466 GLenum format, GLenum type, const void *pixels,
4467 const struct gl_pixelstore_attrib *packing,
4468 struct gl_texture_object *texObj,
4469 struct gl_texture_image *texImage)
4470 {
4471 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4472 pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
4473 pixels, packing, "glTexSubImage1D");
4474 if (!pixels)
4475 return;
4476
4477 {
4478 const GLint dstRowStride = 0;
4479 GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat,
4480 texImage->TexFormat,
4481 texImage->Data,
4482 xoffset, 0, 0, /* offsets */
4483 dstRowStride,
4484 texImage->ImageOffsets,
4485 width, 1, 1,
4486 format, type, pixels, packing);
4487 if (!success) {
4488 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D");
4489 }
4490 }
4491
4492 _mesa_unmap_teximage_pbo(ctx, packing);
4493 }
4494
4495
4496
4497 /**
4498 * This is the software fallback for Driver.TexSubImage2D()
4499 * and Driver.CopyTexSubImage2D().
4500 */
4501 void
4502 _mesa_store_texsubimage2d(struct gl_context *ctx, GLenum target, GLint level,
4503 GLint xoffset, GLint yoffset,
4504 GLint width, GLint height,
4505 GLenum format, GLenum type, const void *pixels,
4506 const struct gl_pixelstore_attrib *packing,
4507 struct gl_texture_object *texObj,
4508 struct gl_texture_image *texImage)
4509 {
4510 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4511 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
4512 pixels, packing, "glTexSubImage2D");
4513 if (!pixels)
4514 return;
4515
4516 {
4517 GLint dstRowStride = texture_row_stride(texImage);
4518 GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat,
4519 texImage->TexFormat,
4520 texImage->Data,
4521 xoffset, yoffset, 0,
4522 dstRowStride,
4523 texImage->ImageOffsets,
4524 width, height, 1,
4525 format, type, pixels, packing);
4526 if (!success) {
4527 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
4528 }
4529 }
4530
4531 _mesa_unmap_teximage_pbo(ctx, packing);
4532 }
4533
4534
4535 /*
4536 * This is the software fallback for Driver.TexSubImage3D().
4537 * and Driver.CopyTexSubImage3D().
4538 */
4539 void
4540 _mesa_store_texsubimage3d(struct gl_context *ctx, GLenum target, GLint level,
4541 GLint xoffset, GLint yoffset, GLint zoffset,
4542 GLint width, GLint height, GLint depth,
4543 GLenum format, GLenum type, const void *pixels,
4544 const struct gl_pixelstore_attrib *packing,
4545 struct gl_texture_object *texObj,
4546 struct gl_texture_image *texImage)
4547 {
4548 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4549 pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
4550 type, pixels, packing,
4551 "glTexSubImage3D");
4552 if (!pixels)
4553 return;
4554
4555 {
4556 GLint dstRowStride = texture_row_stride(texImage);
4557 GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat,
4558 texImage->TexFormat,
4559 texImage->Data,
4560 xoffset, yoffset, zoffset,
4561 dstRowStride,
4562 texImage->ImageOffsets,
4563 width, height, depth,
4564 format, type, pixels, packing);
4565 if (!success) {
4566 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage3D");
4567 }
4568 }
4569
4570 _mesa_unmap_teximage_pbo(ctx, packing);
4571 }
4572
4573
4574 /*
4575 * Fallback for Driver.CompressedTexImage1D()
4576 */
4577 void
4578 _mesa_store_compressed_teximage1d(struct gl_context *ctx,
4579 GLenum target, GLint level,
4580 GLint internalFormat,
4581 GLint width, GLint border,
4582 GLsizei imageSize, const GLvoid *data,
4583 struct gl_texture_object *texObj,
4584 struct gl_texture_image *texImage)
4585 {
4586 /* this space intentionally left blank */
4587 (void) ctx;
4588 (void) target; (void) level;
4589 (void) internalFormat;
4590 (void) width; (void) border;
4591 (void) imageSize; (void) data;
4592 (void) texObj;
4593 (void) texImage;
4594 }
4595
4596
4597
4598 /**
4599 * Fallback for Driver.CompressedTexImage2D()
4600 */
4601 void
4602 _mesa_store_compressed_teximage2d(struct gl_context *ctx,
4603 GLenum target, GLint level,
4604 GLint internalFormat,
4605 GLint width, GLint height, GLint border,
4606 GLsizei imageSize, const GLvoid *data,
4607 struct gl_texture_object *texObj,
4608 struct gl_texture_image *texImage)
4609 {
4610 (void) width; (void) height; (void) border;
4611
4612 /* This is pretty simple, basically just do a memcpy without worrying
4613 * about the usual image unpacking or image transfer operations.
4614 */
4615 ASSERT(texObj);
4616 ASSERT(texImage);
4617 ASSERT(texImage->Width > 0);
4618 ASSERT(texImage->Height > 0);
4619 ASSERT(texImage->Depth == 1);
4620 ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */
4621
4622 /* allocate storage */
4623 texImage->Data = _mesa_alloc_texmemory(imageSize);
4624 if (!texImage->Data) {
4625 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB");
4626 return;
4627 }
4628
4629 data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
4630 &ctx->Unpack,
4631 "glCompressedTexImage2D");
4632 if (!data)
4633 return;
4634
4635 /* copy the data */
4636 memcpy(texImage->Data, data, imageSize);
4637
4638 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
4639 }
4640
4641
4642
4643 /*
4644 * Fallback for Driver.CompressedTexImage3D()
4645 */
4646 void
4647 _mesa_store_compressed_teximage3d(struct gl_context *ctx,
4648 GLenum target, GLint level,
4649 GLint internalFormat,
4650 GLint width, GLint height, GLint depth,
4651 GLint border,
4652 GLsizei imageSize, const GLvoid *data,
4653 struct gl_texture_object *texObj,
4654 struct gl_texture_image *texImage)
4655 {
4656 /* this space intentionally left blank */
4657 (void) ctx;
4658 (void) target; (void) level;
4659 (void) internalFormat;
4660 (void) width; (void) height; (void) depth;
4661 (void) border;
4662 (void) imageSize; (void) data;
4663 (void) texObj;
4664 (void) texImage;
4665 }
4666
4667
4668
4669 /**
4670 * Fallback for Driver.CompressedTexSubImage1D()
4671 */
4672 void
4673 _mesa_store_compressed_texsubimage1d(struct gl_context *ctx, GLenum target,
4674 GLint level,
4675 GLint xoffset, GLsizei width,
4676 GLenum format,
4677 GLsizei imageSize, const GLvoid *data,
4678 struct gl_texture_object *texObj,
4679 struct gl_texture_image *texImage)
4680 {
4681 /* there are no compressed 1D texture formats yet */
4682 (void) ctx;
4683 (void) target; (void) level;
4684 (void) xoffset; (void) width;
4685 (void) format;
4686 (void) imageSize; (void) data;
4687 (void) texObj;
4688 (void) texImage;
4689 }
4690
4691
4692 /**
4693 * Fallback for Driver.CompressedTexSubImage2D()
4694 */
4695 void
4696 _mesa_store_compressed_texsubimage2d(struct gl_context *ctx, GLenum target,
4697 GLint level,
4698 GLint xoffset, GLint yoffset,
4699 GLsizei width, GLsizei height,
4700 GLenum format,
4701 GLsizei imageSize, const GLvoid *data,
4702 struct gl_texture_object *texObj,
4703 struct gl_texture_image *texImage)
4704 {
4705 GLint bytesPerRow, destRowStride, srcRowStride;
4706 GLint i, rows;
4707 GLubyte *dest;
4708 const GLubyte *src;
4709 const gl_format texFormat = texImage->TexFormat;
4710 const GLint destWidth = texImage->Width;
4711 GLuint bw, bh;
4712
4713 _mesa_get_format_block_size(texFormat, &bw, &bh);
4714
4715 (void) level;
4716 (void) format;
4717
4718 /* these should have been caught sooner */
4719 ASSERT((width % bw) == 0 || width == 2 || width == 1);
4720 ASSERT((height % bh) == 0 || height == 2 || height == 1);
4721 ASSERT((xoffset % bw) == 0);
4722 ASSERT((yoffset % bh) == 0);
4723
4724 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4725 data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
4726 &ctx->Unpack,
4727 "glCompressedTexSubImage2D");
4728 if (!data)
4729 return;
4730
4731 srcRowStride = _mesa_format_row_stride(texFormat, width);
4732 src = (const GLubyte *) data;
4733
4734 destRowStride = _mesa_format_row_stride(texFormat, destWidth);
4735 dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
4736 texFormat, destWidth,
4737 (GLubyte *) texImage->Data);
4738
4739 bytesPerRow = srcRowStride; /* bytes per row of blocks */
4740 rows = height / bh; /* rows in blocks */
4741
4742 /* copy rows of blocks */
4743 for (i = 0; i < rows; i++) {
4744 memcpy(dest, src, bytesPerRow);
4745 dest += destRowStride;
4746 src += srcRowStride;
4747 }
4748
4749 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
4750 }
4751
4752
4753 /**
4754 * Fallback for Driver.CompressedTexSubImage3D()
4755 */
4756 void
4757 _mesa_store_compressed_texsubimage3d(struct gl_context *ctx, GLenum target,
4758 GLint level,
4759 GLint xoffset, GLint yoffset, GLint zoffset,
4760 GLsizei width, GLsizei height, GLsizei depth,
4761 GLenum format,
4762 GLsizei imageSize, const GLvoid *data,
4763 struct gl_texture_object *texObj,
4764 struct gl_texture_image *texImage)
4765 {
4766 /* there are no compressed 3D texture formats yet */
4767 (void) ctx;
4768 (void) target; (void) level;
4769 (void) xoffset; (void) yoffset; (void) zoffset;
4770 (void) width; (void) height; (void) depth;
4771 (void) format;
4772 (void) imageSize; (void) data;
4773 (void) texObj;
4774 (void) texImage;
4775 }