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mesa: fix error messages and minor reindenting
[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 /**
2042 * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats.
2043 */
2044 static GLboolean
2045 _mesa_texstore_unorm88(TEXSTORE_PARAMS)
2046 {
2047 const GLboolean littleEndian = _mesa_little_endian();
2048 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2049 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2050
2051 ASSERT(dstFormat == MESA_FORMAT_AL88 ||
2052 dstFormat == MESA_FORMAT_AL88_REV ||
2053 dstFormat == MESA_FORMAT_RG88 ||
2054 dstFormat == MESA_FORMAT_RG88_REV);
2055 ASSERT(texelBytes == 2);
2056
2057 if (!ctx->_ImageTransferState &&
2058 !srcPacking->SwapBytes &&
2059 (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_RG88) &&
2060 baseInternalFormat == srcFormat &&
2061 srcType == GL_UNSIGNED_BYTE &&
2062 littleEndian) {
2063 /* simple memcpy path */
2064 memcpy_texture(ctx, dims,
2065 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2066 dstRowStride,
2067 dstImageOffsets,
2068 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2069 srcAddr, srcPacking);
2070 }
2071 else if (!ctx->_ImageTransferState &&
2072 littleEndian &&
2073 srcType == GL_UNSIGNED_BYTE &&
2074 can_swizzle(baseInternalFormat) &&
2075 can_swizzle(srcFormat)) {
2076 GLubyte dstmap[4];
2077
2078 /* dstmap - how to swizzle from RGBA to dst format:
2079 */
2080 if (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_AL88_REV) {
2081 if ((littleEndian && dstFormat == MESA_FORMAT_AL88) ||
2082 (!littleEndian && dstFormat == MESA_FORMAT_AL88_REV)) {
2083 dstmap[0] = 0;
2084 dstmap[1] = 3;
2085 }
2086 else {
2087 dstmap[0] = 3;
2088 dstmap[1] = 0;
2089 }
2090 }
2091 else {
2092 if ((littleEndian && dstFormat == MESA_FORMAT_RG88) ||
2093 (!littleEndian && dstFormat == MESA_FORMAT_RG88_REV)) {
2094 dstmap[0] = 0;
2095 dstmap[1] = 1;
2096 }
2097 else {
2098 dstmap[0] = 1;
2099 dstmap[1] = 0;
2100 }
2101 }
2102 dstmap[2] = ZERO; /* ? */
2103 dstmap[3] = ONE; /* ? */
2104
2105 _mesa_swizzle_ubyte_image(ctx, dims,
2106 srcFormat,
2107 srcType,
2108 baseInternalFormat,
2109 dstmap, 2,
2110 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2111 dstRowStride, dstImageOffsets,
2112 srcWidth, srcHeight, srcDepth, srcAddr,
2113 srcPacking);
2114 }
2115 else {
2116 /* general path */
2117 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2118 baseInternalFormat,
2119 baseFormat,
2120 srcWidth, srcHeight, srcDepth,
2121 srcFormat, srcType, srcAddr,
2122 srcPacking);
2123 const GLchan *src = tempImage;
2124 GLint img, row, col;
2125 if (!tempImage)
2126 return GL_FALSE;
2127 for (img = 0; img < srcDepth; img++) {
2128 GLubyte *dstRow = (GLubyte *) dstAddr
2129 + dstImageOffsets[dstZoffset + img] * texelBytes
2130 + dstYoffset * dstRowStride
2131 + dstXoffset * texelBytes;
2132 for (row = 0; row < srcHeight; row++) {
2133 GLushort *dstUS = (GLushort *) dstRow;
2134 if (dstFormat == MESA_FORMAT_AL88 ||
2135 dstFormat == MESA_FORMAT_RG88) {
2136 for (col = 0; col < srcWidth; col++) {
2137 /* src[0] is luminance, src[1] is alpha */
2138 dstUS[col] = PACK_COLOR_88( CHAN_TO_UBYTE(src[1]),
2139 CHAN_TO_UBYTE(src[0]) );
2140 src += 2;
2141 }
2142 }
2143 else {
2144 for (col = 0; col < srcWidth; col++) {
2145 /* src[0] is luminance, src[1] is alpha */
2146 dstUS[col] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src[1]),
2147 CHAN_TO_UBYTE(src[0]) );
2148 src += 2;
2149 }
2150 }
2151 dstRow += dstRowStride;
2152 }
2153 }
2154 free((void *) tempImage);
2155 }
2156 return GL_TRUE;
2157 }
2158
2159
2160 /**
2161 * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats.
2162 */
2163 static GLboolean
2164 _mesa_texstore_unorm1616(TEXSTORE_PARAMS)
2165 {
2166 const GLboolean littleEndian = _mesa_little_endian();
2167 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2168 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2169
2170 ASSERT(dstFormat == MESA_FORMAT_AL1616 ||
2171 dstFormat == MESA_FORMAT_AL1616_REV ||
2172 dstFormat == MESA_FORMAT_RG1616 ||
2173 dstFormat == MESA_FORMAT_RG1616_REV);
2174 ASSERT(texelBytes == 4);
2175
2176 if (!ctx->_ImageTransferState &&
2177 !srcPacking->SwapBytes &&
2178 (dstFormat == MESA_FORMAT_AL1616 || dstFormat == MESA_FORMAT_RG1616) &&
2179 baseInternalFormat == srcFormat &&
2180 srcType == GL_UNSIGNED_SHORT &&
2181 littleEndian) {
2182 /* simple memcpy path */
2183 memcpy_texture(ctx, dims,
2184 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2185 dstRowStride,
2186 dstImageOffsets,
2187 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2188 srcAddr, srcPacking);
2189 }
2190 else {
2191 /* general path */
2192 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2193 baseInternalFormat,
2194 baseFormat,
2195 srcWidth, srcHeight, srcDepth,
2196 srcFormat, srcType, srcAddr,
2197 srcPacking,
2198 ctx->_ImageTransferState);
2199 const GLfloat *src = tempImage;
2200 GLint img, row, col;
2201 if (!tempImage)
2202 return GL_FALSE;
2203 for (img = 0; img < srcDepth; img++) {
2204 GLubyte *dstRow = (GLubyte *) dstAddr
2205 + dstImageOffsets[dstZoffset + img] * texelBytes
2206 + dstYoffset * dstRowStride
2207 + dstXoffset * texelBytes;
2208 for (row = 0; row < srcHeight; row++) {
2209 GLuint *dstUI = (GLuint *) dstRow;
2210 if (dstFormat == MESA_FORMAT_AL1616 ||
2211 dstFormat == MESA_FORMAT_RG1616) {
2212 for (col = 0; col < srcWidth; col++) {
2213 GLushort l, a;
2214
2215 UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
2216 UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
2217 dstUI[col] = PACK_COLOR_1616(a, l);
2218 src += 2;
2219 }
2220 }
2221 else {
2222 for (col = 0; col < srcWidth; col++) {
2223 GLushort l, a;
2224
2225 UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
2226 UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
2227 dstUI[col] = PACK_COLOR_1616_REV(a, l);
2228 src += 2;
2229 }
2230 }
2231 dstRow += dstRowStride;
2232 }
2233 }
2234 free((void *) tempImage);
2235 }
2236 return GL_TRUE;
2237 }
2238
2239
2240 static GLboolean
2241 _mesa_texstore_r16(TEXSTORE_PARAMS)
2242 {
2243 const GLboolean littleEndian = _mesa_little_endian();
2244 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2245 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2246
2247 ASSERT(dstFormat == MESA_FORMAT_R16);
2248 ASSERT(texelBytes == 2);
2249
2250 if (!ctx->_ImageTransferState &&
2251 !srcPacking->SwapBytes &&
2252 dstFormat == MESA_FORMAT_R16 &&
2253 baseInternalFormat == GL_RED &&
2254 srcFormat == GL_RED &&
2255 srcType == GL_UNSIGNED_SHORT &&
2256 littleEndian) {
2257 /* simple memcpy path */
2258 memcpy_texture(ctx, dims,
2259 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2260 dstRowStride,
2261 dstImageOffsets,
2262 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2263 srcAddr, srcPacking);
2264 }
2265 else {
2266 /* general path */
2267 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2268 baseInternalFormat,
2269 baseFormat,
2270 srcWidth, srcHeight, srcDepth,
2271 srcFormat, srcType, srcAddr,
2272 srcPacking,
2273 ctx->_ImageTransferState);
2274 const GLfloat *src = tempImage;
2275 GLint img, row, col;
2276 if (!tempImage)
2277 return GL_FALSE;
2278 for (img = 0; img < srcDepth; img++) {
2279 GLubyte *dstRow = (GLubyte *) dstAddr
2280 + dstImageOffsets[dstZoffset + img] * texelBytes
2281 + dstYoffset * dstRowStride
2282 + dstXoffset * texelBytes;
2283 for (row = 0; row < srcHeight; row++) {
2284 GLushort *dstUS = (GLushort *) dstRow;
2285 for (col = 0; col < srcWidth; col++) {
2286 GLushort r;
2287
2288 UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
2289 dstUS[col] = r;
2290 src += 1;
2291 }
2292 dstRow += dstRowStride;
2293 }
2294 }
2295 free((void *) tempImage);
2296 }
2297 return GL_TRUE;
2298 }
2299
2300
2301 static GLboolean
2302 _mesa_texstore_rgba_16(TEXSTORE_PARAMS)
2303 {
2304 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2305 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2306
2307 ASSERT(dstFormat == MESA_FORMAT_RGBA_16);
2308 ASSERT(texelBytes == 8);
2309
2310 if (!ctx->_ImageTransferState &&
2311 !srcPacking->SwapBytes &&
2312 baseInternalFormat == GL_RGBA &&
2313 srcFormat == GL_RGBA &&
2314 srcType == GL_UNSIGNED_SHORT) {
2315 /* simple memcpy path */
2316 memcpy_texture(ctx, dims,
2317 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2318 dstRowStride,
2319 dstImageOffsets,
2320 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2321 srcAddr, srcPacking);
2322 }
2323 else {
2324 /* general path */
2325 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2326 baseInternalFormat,
2327 baseFormat,
2328 srcWidth, srcHeight, srcDepth,
2329 srcFormat, srcType, srcAddr,
2330 srcPacking,
2331 ctx->_ImageTransferState);
2332 const GLfloat *src = tempImage;
2333 GLint img, row, col;
2334 if (!tempImage)
2335 return GL_FALSE;
2336 for (img = 0; img < srcDepth; img++) {
2337 GLubyte *dstRow = (GLubyte *) dstAddr
2338 + dstImageOffsets[dstZoffset + img] * texelBytes
2339 + dstYoffset * dstRowStride
2340 + dstXoffset * texelBytes;
2341 for (row = 0; row < srcHeight; row++) {
2342 GLushort *dstUS = (GLushort *) dstRow;
2343 for (col = 0; col < srcWidth; col++) {
2344 GLushort r, g, b, a;
2345
2346 UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
2347 UNCLAMPED_FLOAT_TO_USHORT(g, src[1]);
2348 UNCLAMPED_FLOAT_TO_USHORT(b, src[2]);
2349 UNCLAMPED_FLOAT_TO_USHORT(a, src[3]);
2350 dstUS[col*4+0] = r;
2351 dstUS[col*4+1] = g;
2352 dstUS[col*4+2] = b;
2353 dstUS[col*4+3] = a;
2354 src += 4;
2355 }
2356 dstRow += dstRowStride;
2357 }
2358 }
2359 free((void *) tempImage);
2360 }
2361 return GL_TRUE;
2362 }
2363
2364
2365 static GLboolean
2366 _mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS)
2367 {
2368 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2369 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2370
2371 ASSERT(dstFormat == MESA_FORMAT_SIGNED_R_16 ||
2372 dstFormat == MESA_FORMAT_SIGNED_RG_16 ||
2373 dstFormat == MESA_FORMAT_SIGNED_RGB_16 ||
2374 dstFormat == MESA_FORMAT_SIGNED_RGBA_16);
2375
2376 if (!ctx->_ImageTransferState &&
2377 !srcPacking->SwapBytes &&
2378 baseInternalFormat == GL_RGBA &&
2379 dstFormat == MESA_FORMAT_SIGNED_RGBA_16 &&
2380 srcFormat == GL_RGBA &&
2381 srcType == GL_SHORT) {
2382 /* simple memcpy path */
2383 memcpy_texture(ctx, dims,
2384 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2385 dstRowStride,
2386 dstImageOffsets,
2387 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2388 srcAddr, srcPacking);
2389 }
2390 else {
2391 /* general path */
2392 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2393 baseInternalFormat,
2394 baseFormat,
2395 srcWidth, srcHeight, srcDepth,
2396 srcFormat, srcType, srcAddr,
2397 srcPacking,
2398 ctx->_ImageTransferState);
2399 const GLfloat *src = tempImage;
2400 const GLuint comps = _mesa_get_format_bytes(dstFormat) / 2;
2401 GLint img, row, col;
2402
2403 if (!tempImage)
2404 return GL_FALSE;
2405
2406 /* Note: tempImage is always float[4] / RGBA. We convert to 1, 2,
2407 * 3 or 4 components/pixel here.
2408 */
2409 for (img = 0; img < srcDepth; img++) {
2410 GLubyte *dstRow = (GLubyte *) dstAddr
2411 + dstImageOffsets[dstZoffset + img] * texelBytes
2412 + dstYoffset * dstRowStride
2413 + dstXoffset * texelBytes;
2414 for (row = 0; row < srcHeight; row++) {
2415 GLshort *dstRowS = (GLshort *) dstRow;
2416 for (col = 0; col < srcWidth; col++) {
2417 GLuint c;
2418 for (c = 0; c < comps; c++) {
2419 GLshort p;
2420 UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 4 + c]);
2421 dstRowS[col * comps + c] = p;
2422 }
2423 }
2424 dstRow += dstRowStride;
2425 src += 4 * srcWidth;
2426 }
2427 }
2428 free((void *) tempImage);
2429 }
2430 return GL_TRUE;
2431 }
2432
2433
2434 static GLboolean
2435 _mesa_texstore_rgb332(TEXSTORE_PARAMS)
2436 {
2437 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2438 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2439
2440 ASSERT(dstFormat == MESA_FORMAT_RGB332);
2441 ASSERT(texelBytes == 1);
2442
2443 if (!ctx->_ImageTransferState &&
2444 !srcPacking->SwapBytes &&
2445 baseInternalFormat == GL_RGB &&
2446 srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE_3_3_2) {
2447 /* simple memcpy path */
2448 memcpy_texture(ctx, dims,
2449 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2450 dstRowStride,
2451 dstImageOffsets,
2452 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2453 srcAddr, srcPacking);
2454 }
2455 else {
2456 /* general path */
2457 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2458 baseInternalFormat,
2459 baseFormat,
2460 srcWidth, srcHeight, srcDepth,
2461 srcFormat, srcType, srcAddr,
2462 srcPacking);
2463 const GLchan *src = tempImage;
2464 GLint img, row, col;
2465 if (!tempImage)
2466 return GL_FALSE;
2467 for (img = 0; img < srcDepth; img++) {
2468 GLubyte *dstRow = (GLubyte *) dstAddr
2469 + dstImageOffsets[dstZoffset + img] * texelBytes
2470 + dstYoffset * dstRowStride
2471 + dstXoffset * texelBytes;
2472 for (row = 0; row < srcHeight; row++) {
2473 for (col = 0; col < srcWidth; col++) {
2474 dstRow[col] = PACK_COLOR_332( CHAN_TO_UBYTE(src[RCOMP]),
2475 CHAN_TO_UBYTE(src[GCOMP]),
2476 CHAN_TO_UBYTE(src[BCOMP]) );
2477 src += 3;
2478 }
2479 dstRow += dstRowStride;
2480 }
2481 }
2482 free((void *) tempImage);
2483 }
2484 return GL_TRUE;
2485 }
2486
2487
2488 /**
2489 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
2490 */
2491 static GLboolean
2492 _mesa_texstore_a8(TEXSTORE_PARAMS)
2493 {
2494 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2495 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2496
2497 ASSERT(dstFormat == MESA_FORMAT_A8 ||
2498 dstFormat == MESA_FORMAT_L8 ||
2499 dstFormat == MESA_FORMAT_I8 ||
2500 dstFormat == MESA_FORMAT_R8);
2501 ASSERT(texelBytes == 1);
2502
2503 if (!ctx->_ImageTransferState &&
2504 !srcPacking->SwapBytes &&
2505 baseInternalFormat == srcFormat &&
2506 srcType == GL_UNSIGNED_BYTE) {
2507 /* simple memcpy path */
2508 memcpy_texture(ctx, dims,
2509 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2510 dstRowStride,
2511 dstImageOffsets,
2512 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2513 srcAddr, srcPacking);
2514 }
2515 else if (!ctx->_ImageTransferState &&
2516 srcType == GL_UNSIGNED_BYTE &&
2517 can_swizzle(baseInternalFormat) &&
2518 can_swizzle(srcFormat)) {
2519 GLubyte dstmap[4];
2520
2521 /* dstmap - how to swizzle from RGBA to dst format:
2522 */
2523 if (dstFormat == MESA_FORMAT_A8) {
2524 dstmap[0] = 3;
2525 }
2526 else {
2527 dstmap[0] = 0;
2528 }
2529 dstmap[1] = ZERO; /* ? */
2530 dstmap[2] = ZERO; /* ? */
2531 dstmap[3] = ONE; /* ? */
2532
2533 _mesa_swizzle_ubyte_image(ctx, dims,
2534 srcFormat,
2535 srcType,
2536 baseInternalFormat,
2537 dstmap, 1,
2538 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2539 dstRowStride, dstImageOffsets,
2540 srcWidth, srcHeight, srcDepth, srcAddr,
2541 srcPacking);
2542 }
2543 else {
2544 /* general path */
2545 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2546 baseInternalFormat,
2547 baseFormat,
2548 srcWidth, srcHeight, srcDepth,
2549 srcFormat, srcType, srcAddr,
2550 srcPacking);
2551 const GLchan *src = tempImage;
2552 GLint img, row, col;
2553 if (!tempImage)
2554 return GL_FALSE;
2555 for (img = 0; img < srcDepth; img++) {
2556 GLubyte *dstRow = (GLubyte *) dstAddr
2557 + dstImageOffsets[dstZoffset + img] * texelBytes
2558 + dstYoffset * dstRowStride
2559 + dstXoffset * texelBytes;
2560 for (row = 0; row < srcHeight; row++) {
2561 for (col = 0; col < srcWidth; col++) {
2562 dstRow[col] = CHAN_TO_UBYTE(src[col]);
2563 }
2564 dstRow += dstRowStride;
2565 src += srcWidth;
2566 }
2567 }
2568 free((void *) tempImage);
2569 }
2570 return GL_TRUE;
2571 }
2572
2573
2574
2575 static GLboolean
2576 _mesa_texstore_ci8(TEXSTORE_PARAMS)
2577 {
2578 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2579
2580 (void) dims; (void) baseInternalFormat;
2581 ASSERT(dstFormat == MESA_FORMAT_CI8);
2582 ASSERT(texelBytes == 1);
2583 ASSERT(baseInternalFormat == GL_COLOR_INDEX);
2584
2585 if (!ctx->_ImageTransferState &&
2586 !srcPacking->SwapBytes &&
2587 srcFormat == GL_COLOR_INDEX &&
2588 srcType == GL_UNSIGNED_BYTE) {
2589 /* simple memcpy path */
2590 memcpy_texture(ctx, dims,
2591 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2592 dstRowStride,
2593 dstImageOffsets,
2594 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2595 srcAddr, srcPacking);
2596 }
2597 else {
2598 /* general path */
2599 GLint img, row;
2600 for (img = 0; img < srcDepth; img++) {
2601 GLubyte *dstRow = (GLubyte *) dstAddr
2602 + dstImageOffsets[dstZoffset + img] * texelBytes
2603 + dstYoffset * dstRowStride
2604 + dstXoffset * texelBytes;
2605 for (row = 0; row < srcHeight; row++) {
2606 const GLvoid *src = _mesa_image_address(dims, srcPacking,
2607 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
2608 _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow,
2609 srcType, src, srcPacking,
2610 ctx->_ImageTransferState);
2611 dstRow += dstRowStride;
2612 }
2613 }
2614 }
2615 return GL_TRUE;
2616 }
2617
2618
2619 /**
2620 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV.
2621 */
2622 static GLboolean
2623 _mesa_texstore_ycbcr(TEXSTORE_PARAMS)
2624 {
2625 const GLboolean littleEndian = _mesa_little_endian();
2626 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2627
2628 (void) ctx; (void) dims; (void) baseInternalFormat;
2629
2630 ASSERT((dstFormat == MESA_FORMAT_YCBCR) ||
2631 (dstFormat == MESA_FORMAT_YCBCR_REV));
2632 ASSERT(texelBytes == 2);
2633 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
2634 ASSERT(srcFormat == GL_YCBCR_MESA);
2635 ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) ||
2636 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA));
2637 ASSERT(baseInternalFormat == GL_YCBCR_MESA);
2638
2639 /* always just memcpy since no pixel transfer ops apply */
2640 memcpy_texture(ctx, dims,
2641 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2642 dstRowStride,
2643 dstImageOffsets,
2644 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2645 srcAddr, srcPacking);
2646
2647 /* Check if we need byte swapping */
2648 /* XXX the logic here _might_ be wrong */
2649 if (srcPacking->SwapBytes ^
2650 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^
2651 (dstFormat == MESA_FORMAT_YCBCR_REV) ^
2652 !littleEndian) {
2653 GLint img, row;
2654 for (img = 0; img < srcDepth; img++) {
2655 GLubyte *dstRow = (GLubyte *) dstAddr
2656 + dstImageOffsets[dstZoffset + img] * texelBytes
2657 + dstYoffset * dstRowStride
2658 + dstXoffset * texelBytes;
2659 for (row = 0; row < srcHeight; row++) {
2660 _mesa_swap2((GLushort *) dstRow, srcWidth);
2661 dstRow += dstRowStride;
2662 }
2663 }
2664 }
2665 return GL_TRUE;
2666 }
2667
2668 static GLboolean
2669 _mesa_texstore_dudv8(TEXSTORE_PARAMS)
2670 {
2671 const GLboolean littleEndian = _mesa_little_endian();
2672 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2673
2674 ASSERT(dstFormat == MESA_FORMAT_DUDV8);
2675 ASSERT(texelBytes == 2);
2676 ASSERT(ctx->Extensions.ATI_envmap_bumpmap);
2677 ASSERT((srcFormat == GL_DU8DV8_ATI) ||
2678 (srcFormat == GL_DUDV_ATI));
2679 ASSERT(baseInternalFormat == GL_DUDV_ATI);
2680
2681 if (!srcPacking->SwapBytes && srcType == GL_BYTE &&
2682 littleEndian) {
2683 /* simple memcpy path */
2684 memcpy_texture(ctx, dims,
2685 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2686 dstRowStride,
2687 dstImageOffsets,
2688 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2689 srcAddr, srcPacking);
2690 }
2691 else if (srcType == GL_BYTE) {
2692 GLubyte dstmap[4];
2693
2694 /* dstmap - how to swizzle from RGBA to dst format:
2695 */
2696 if (littleEndian) {
2697 dstmap[0] = 0;
2698 dstmap[1] = 3;
2699 }
2700 else {
2701 dstmap[0] = 3;
2702 dstmap[1] = 0;
2703 }
2704 dstmap[2] = ZERO; /* ? */
2705 dstmap[3] = ONE; /* ? */
2706
2707 _mesa_swizzle_ubyte_image(ctx, dims,
2708 GL_LUMINANCE_ALPHA, /* hack */
2709 GL_UNSIGNED_BYTE, /* hack */
2710 GL_LUMINANCE_ALPHA, /* hack */
2711 dstmap, 2,
2712 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2713 dstRowStride, dstImageOffsets,
2714 srcWidth, srcHeight, srcDepth, srcAddr,
2715 srcPacking);
2716 }
2717 else {
2718 /* general path - note this is defined for 2d textures only */
2719 const GLint components = _mesa_components_in_format(baseInternalFormat);
2720 const GLint srcStride = _mesa_image_row_stride(srcPacking, srcWidth,
2721 srcFormat, srcType);
2722 GLbyte *tempImage, *dst, *src;
2723 GLint row;
2724
2725 tempImage = (GLbyte *) malloc(srcWidth * srcHeight * srcDepth
2726 * components * sizeof(GLbyte));
2727 if (!tempImage)
2728 return GL_FALSE;
2729
2730 src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2731 srcWidth, srcHeight,
2732 srcFormat, srcType,
2733 0, 0, 0);
2734
2735 dst = tempImage;
2736 for (row = 0; row < srcHeight; row++) {
2737 _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat,
2738 dst, srcFormat, srcType, src,
2739 srcPacking, 0);
2740 dst += srcWidth * components;
2741 src += srcStride;
2742 }
2743
2744 src = tempImage;
2745 dst = (GLbyte *) dstAddr
2746 + dstYoffset * dstRowStride
2747 + dstXoffset * texelBytes;
2748 for (row = 0; row < srcHeight; row++) {
2749 memcpy(dst, src, srcWidth * texelBytes);
2750 dst += dstRowStride;
2751 src += srcWidth * texelBytes;
2752 }
2753 free((void *) tempImage);
2754 }
2755 return GL_TRUE;
2756 }
2757
2758
2759 /**
2760 * Store a texture in MESA_FORMAT_SIGNED_R8 format.
2761 */
2762 static GLboolean
2763 _mesa_texstore_signed_r8(TEXSTORE_PARAMS)
2764 {
2765 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2766 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2767
2768 ASSERT(dstFormat == MESA_FORMAT_SIGNED_R8);
2769 ASSERT(texelBytes == 1);
2770
2771 /* XXX look at adding optimized paths */
2772 {
2773 /* general path */
2774 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2775 baseInternalFormat,
2776 baseFormat,
2777 srcWidth, srcHeight, srcDepth,
2778 srcFormat, srcType, srcAddr,
2779 srcPacking,
2780 ctx->_ImageTransferState);
2781 const GLfloat *srcRow = tempImage;
2782 GLint img, row, col;
2783 if (!tempImage)
2784 return GL_FALSE;
2785 for (img = 0; img < srcDepth; img++) {
2786 GLubyte *dstRow = (GLubyte *) dstAddr
2787 + dstImageOffsets[dstZoffset + img] * texelBytes
2788 + dstYoffset * dstRowStride
2789 + dstXoffset * texelBytes;
2790 for (row = 0; row < srcHeight; row++) {
2791 GLubyte *dstB = (GLubyte *) dstRow;
2792 for (col = 0; col < srcWidth; col++) {
2793 dstB[col] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]);
2794 }
2795 dstRow += dstRowStride;
2796 }
2797 }
2798 free((void *) tempImage);
2799 }
2800 return GL_TRUE;
2801 }
2802
2803
2804 /**
2805 * Store a texture in MESA_FORMAT_SIGNED_RG88 format.
2806 */
2807 static GLboolean
2808 _mesa_texstore_signed_rg88(TEXSTORE_PARAMS)
2809 {
2810 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2811 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2812
2813 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RG88);
2814 ASSERT(texelBytes == 1);
2815
2816 /* XXX look at adding optimized paths */
2817 {
2818 /* general path */
2819 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2820 baseInternalFormat,
2821 baseFormat,
2822 srcWidth, srcHeight, srcDepth,
2823 srcFormat, srcType, srcAddr,
2824 srcPacking,
2825 ctx->_ImageTransferState);
2826 const GLfloat *srcRow = tempImage;
2827 GLint img, row, col;
2828 if (!tempImage)
2829 return GL_FALSE;
2830 for (img = 0; img < srcDepth; img++) {
2831 GLubyte *dstRow = (GLubyte *) dstAddr
2832 + dstImageOffsets[dstZoffset + img] * texelBytes
2833 + dstYoffset * dstRowStride
2834 + dstXoffset * texelBytes;
2835 for (row = 0; row < srcHeight; row++) {
2836 GLushort *dstUS = (GLushort *) dstRow;
2837 for (col = 0; col < srcWidth; col++) {
2838 dstUS[col] = PACK_COLOR_88(FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
2839 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]));
2840 }
2841 dstRow += dstRowStride;
2842 }
2843 }
2844 free((void *) tempImage);
2845 }
2846 return GL_TRUE;
2847 }
2848
2849
2850 /**
2851 * Store a texture in MESA_FORMAT_SIGNED_RGBX8888.
2852 */
2853 static GLboolean
2854 _mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS)
2855 {
2856 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2857 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2858
2859 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBX8888);
2860 ASSERT(texelBytes == 4);
2861
2862 {
2863 /* general path */
2864 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2865 baseInternalFormat,
2866 baseFormat,
2867 srcWidth, srcHeight, srcDepth,
2868 srcFormat, srcType, srcAddr,
2869 srcPacking,
2870 ctx->_ImageTransferState);
2871 const GLfloat *srcRow = tempImage;
2872 GLint img, row, col;
2873 if (!tempImage)
2874 return GL_FALSE;
2875 for (img = 0; img < srcDepth; img++) {
2876 GLubyte *dstRow = (GLubyte *) dstAddr
2877 + dstImageOffsets[dstZoffset + img] * texelBytes
2878 + dstYoffset * dstRowStride
2879 + dstXoffset * texelBytes;
2880 for (row = 0; row < srcHeight; row++) {
2881 GLuint *dstUI = (GLuint *) dstRow;
2882 for (col = 0; col < srcWidth; col++) {
2883 dstUI[col] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
2884 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
2885 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
2886 0xff );
2887 srcRow += 4;
2888 }
2889 dstRow += dstRowStride;
2890 }
2891 }
2892 free((void *) tempImage);
2893 }
2894 return GL_TRUE;
2895 }
2896
2897
2898
2899 /**
2900 * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or
2901 * MESA_FORMAT_SIGNED_RGBA8888_REV
2902 */
2903 static GLboolean
2904 _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
2905 {
2906 const GLboolean littleEndian = _mesa_little_endian();
2907 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2908 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2909
2910 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBA8888 ||
2911 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV);
2912 ASSERT(texelBytes == 4);
2913
2914 if (!ctx->_ImageTransferState &&
2915 !srcPacking->SwapBytes &&
2916 dstFormat == MESA_FORMAT_SIGNED_RGBA8888 &&
2917 baseInternalFormat == GL_RGBA &&
2918 ((srcFormat == GL_RGBA && srcType == GL_BYTE && !littleEndian) ||
2919 (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && littleEndian))) {
2920 /* simple memcpy path */
2921 memcpy_texture(ctx, dims,
2922 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2923 dstRowStride,
2924 dstImageOffsets,
2925 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2926 srcAddr, srcPacking);
2927 }
2928 else if (!ctx->_ImageTransferState &&
2929 !srcPacking->SwapBytes &&
2930 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV &&
2931 baseInternalFormat == GL_RGBA &&
2932 ((srcFormat == GL_RGBA && srcType == GL_BYTE && littleEndian) ||
2933 (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && !littleEndian))) {
2934 /* simple memcpy path */
2935 memcpy_texture(ctx, dims,
2936 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2937 dstRowStride,
2938 dstImageOffsets,
2939 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2940 srcAddr, srcPacking);
2941 }
2942 else if (!ctx->_ImageTransferState &&
2943 (srcType == GL_BYTE) &&
2944 can_swizzle(baseInternalFormat) &&
2945 can_swizzle(srcFormat)) {
2946
2947 GLubyte dstmap[4];
2948
2949 /* dstmap - how to swizzle from RGBA to dst format:
2950 */
2951 if ((littleEndian && dstFormat == MESA_FORMAT_SIGNED_RGBA8888) ||
2952 (!littleEndian && dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV)) {
2953 dstmap[3] = 0;
2954 dstmap[2] = 1;
2955 dstmap[1] = 2;
2956 dstmap[0] = 3;
2957 }
2958 else {
2959 dstmap[3] = 3;
2960 dstmap[2] = 2;
2961 dstmap[1] = 1;
2962 dstmap[0] = 0;
2963 }
2964
2965 _mesa_swizzle_ubyte_image(ctx, dims,
2966 srcFormat,
2967 srcType,
2968 baseInternalFormat,
2969 dstmap, 4,
2970 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2971 dstRowStride, dstImageOffsets,
2972 srcWidth, srcHeight, srcDepth, srcAddr,
2973 srcPacking);
2974 }
2975 else {
2976 /* general path */
2977 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2978 baseInternalFormat,
2979 baseFormat,
2980 srcWidth, srcHeight, srcDepth,
2981 srcFormat, srcType, srcAddr,
2982 srcPacking,
2983 ctx->_ImageTransferState);
2984 const GLfloat *srcRow = tempImage;
2985 GLint img, row, col;
2986 if (!tempImage)
2987 return GL_FALSE;
2988 for (img = 0; img < srcDepth; img++) {
2989 GLubyte *dstRow = (GLubyte *) dstAddr
2990 + dstImageOffsets[dstZoffset + img] * texelBytes
2991 + dstYoffset * dstRowStride
2992 + dstXoffset * texelBytes;
2993 for (row = 0; row < srcHeight; row++) {
2994 GLuint *dstUI = (GLuint *) dstRow;
2995 if (dstFormat == MESA_FORMAT_SIGNED_RGBA8888) {
2996 for (col = 0; col < srcWidth; col++) {
2997 dstUI[col] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
2998 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
2999 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
3000 FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
3001 srcRow += 4;
3002 }
3003 }
3004 else {
3005 for (col = 0; col < srcWidth; col++) {
3006 dstUI[col] = PACK_COLOR_8888_REV( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
3007 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
3008 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
3009 FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
3010 srcRow += 4;
3011 }
3012 }
3013 dstRow += dstRowStride;
3014 }
3015 }
3016 free((void *) tempImage);
3017 }
3018 return GL_TRUE;
3019 }
3020
3021
3022 /**
3023 * Store a combined depth/stencil texture image.
3024 */
3025 static GLboolean
3026 _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
3027 {
3028 const GLuint depthScale = 0xffffff;
3029 const GLint srcRowStride
3030 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3031 / sizeof(GLuint);
3032 GLint img, row;
3033
3034 ASSERT(dstFormat == MESA_FORMAT_Z24_S8);
3035 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
3036 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
3037
3038 if (srcFormat != GL_DEPTH_COMPONENT && ctx->Pixel.DepthScale == 1.0f &&
3039 ctx->Pixel.DepthBias == 0.0f &&
3040 !srcPacking->SwapBytes) {
3041 /* simple path */
3042 memcpy_texture(ctx, dims,
3043 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3044 dstRowStride,
3045 dstImageOffsets,
3046 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3047 srcAddr, srcPacking);
3048 }
3049 else if (srcFormat == GL_DEPTH_COMPONENT) {
3050 /* In case we only upload depth we need to preserve the stencil */
3051 for (img = 0; img < srcDepth; img++) {
3052 GLuint *dstRow = (GLuint *) dstAddr
3053 + dstImageOffsets[dstZoffset + img]
3054 + dstYoffset * dstRowStride / sizeof(GLuint)
3055 + dstXoffset;
3056 const GLuint *src
3057 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
3058 srcWidth, srcHeight,
3059 srcFormat, srcType,
3060 img, 0, 0);
3061 for (row = 0; row < srcHeight; row++) {
3062 GLuint depth[MAX_WIDTH];
3063 GLubyte stencil[MAX_WIDTH];
3064 GLint i;
3065 GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE;
3066
3067 if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
3068 keepstencil = GL_TRUE;
3069 }
3070 else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
3071 keepdepth = GL_TRUE;
3072 }
3073
3074 if (keepdepth == GL_FALSE)
3075 /* the 24 depth bits will be in the low position: */
3076 _mesa_unpack_depth_span(ctx, srcWidth,
3077 GL_UNSIGNED_INT, /* dst type */
3078 keepstencil ? depth : dstRow, /* dst addr */
3079 depthScale,
3080 srcType, src, srcPacking);
3081
3082 if (keepstencil == GL_FALSE)
3083 /* get the 8-bit stencil values */
3084 _mesa_unpack_stencil_span(ctx, srcWidth,
3085 GL_UNSIGNED_BYTE, /* dst type */
3086 stencil, /* dst addr */
3087 srcType, src, srcPacking,
3088 ctx->_ImageTransferState);
3089
3090 for (i = 0; i < srcWidth; i++) {
3091 if (keepstencil)
3092 dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF);
3093 else
3094 dstRow[i] = (dstRow[i] & 0xFFFFFF00) | (stencil[i] & 0xFF);
3095 }
3096
3097 src += srcRowStride;
3098 dstRow += dstRowStride / sizeof(GLuint);
3099 }
3100 }
3101 }
3102 return GL_TRUE;
3103 }
3104
3105
3106 /**
3107 * Store a combined depth/stencil texture image.
3108 */
3109 static GLboolean
3110 _mesa_texstore_s8_z24(TEXSTORE_PARAMS)
3111 {
3112 const GLuint depthScale = 0xffffff;
3113 const GLint srcRowStride
3114 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3115 / sizeof(GLuint);
3116 GLint img, row;
3117
3118 ASSERT(dstFormat == MESA_FORMAT_S8_Z24);
3119 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT ||
3120 srcFormat == GL_DEPTH_COMPONENT ||
3121 srcFormat == GL_STENCIL_INDEX);
3122 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT ||
3123 srcType == GL_UNSIGNED_INT_24_8_EXT);
3124
3125 for (img = 0; img < srcDepth; img++) {
3126 GLuint *dstRow = (GLuint *) dstAddr
3127 + dstImageOffsets[dstZoffset + img]
3128 + dstYoffset * dstRowStride / sizeof(GLuint)
3129 + dstXoffset;
3130 const GLuint *src
3131 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
3132 srcWidth, srcHeight,
3133 srcFormat, srcType,
3134 img, 0, 0);
3135 for (row = 0; row < srcHeight; row++) {
3136 GLuint depth[MAX_WIDTH];
3137 GLubyte stencil[MAX_WIDTH];
3138 GLint i;
3139 GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE;
3140
3141 if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
3142 keepstencil = GL_TRUE;
3143 }
3144 else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
3145 keepdepth = GL_TRUE;
3146 }
3147
3148 if (keepdepth == GL_FALSE)
3149 /* the 24 depth bits will be in the low position: */
3150 _mesa_unpack_depth_span(ctx, srcWidth,
3151 GL_UNSIGNED_INT, /* dst type */
3152 keepstencil ? depth : dstRow, /* dst addr */
3153 depthScale,
3154 srcType, src, srcPacking);
3155
3156 if (keepstencil == GL_FALSE)
3157 /* get the 8-bit stencil values */
3158 _mesa_unpack_stencil_span(ctx, srcWidth,
3159 GL_UNSIGNED_BYTE, /* dst type */
3160 stencil, /* dst addr */
3161 srcType, src, srcPacking,
3162 ctx->_ImageTransferState);
3163
3164 /* merge stencil values into depth values */
3165 for (i = 0; i < srcWidth; i++) {
3166 if (keepstencil)
3167 dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000);
3168 else
3169 dstRow[i] = (dstRow[i] & 0xFFFFFF) | (stencil[i] << 24);
3170
3171 }
3172 src += srcRowStride;
3173 dstRow += dstRowStride / sizeof(GLuint);
3174 }
3175 }
3176 return GL_TRUE;
3177 }
3178
3179
3180 /**
3181 * Store simple 8-bit/value stencil texture data.
3182 */
3183 static GLboolean
3184 _mesa_texstore_s8(TEXSTORE_PARAMS)
3185 {
3186 ASSERT(dstFormat == MESA_FORMAT_S8);
3187 ASSERT(srcFormat == GL_STENCIL_INDEX);
3188
3189 if (!ctx->_ImageTransferState &&
3190 !srcPacking->SwapBytes &&
3191 baseInternalFormat == srcFormat &&
3192 srcType == GL_UNSIGNED_BYTE) {
3193 /* simple memcpy path */
3194 memcpy_texture(ctx, dims,
3195 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3196 dstRowStride,
3197 dstImageOffsets,
3198 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3199 srcAddr, srcPacking);
3200 }
3201 else {
3202 const GLint srcRowStride
3203 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3204 / sizeof(GLuint);
3205 GLint img, row;
3206
3207 for (img = 0; img < srcDepth; img++) {
3208 GLubyte *dstRow = (GLubyte *) dstAddr
3209 + dstImageOffsets[dstZoffset + img]
3210 + dstYoffset * dstRowStride / sizeof(GLuint)
3211 + dstXoffset;
3212 const GLuint *src
3213 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
3214 srcWidth, srcHeight,
3215 srcFormat, srcType,
3216 img, 0, 0);
3217 for (row = 0; row < srcHeight; row++) {
3218 GLubyte stencil[MAX_WIDTH];
3219 GLint i;
3220
3221 /* get the 8-bit stencil values */
3222 _mesa_unpack_stencil_span(ctx, srcWidth,
3223 GL_UNSIGNED_BYTE, /* dst type */
3224 stencil, /* dst addr */
3225 srcType, src, srcPacking,
3226 ctx->_ImageTransferState);
3227 /* merge stencil values into depth values */
3228 for (i = 0; i < srcWidth; i++)
3229 dstRow[i] = stencil[i];
3230
3231 src += srcRowStride;
3232 dstRow += dstRowStride / sizeof(GLubyte);
3233 }
3234 }
3235
3236 }
3237
3238 return GL_TRUE;
3239 }
3240
3241
3242 /**
3243 * Store an image in any of the formats:
3244 * _mesa_texformat_rgba_float32
3245 * _mesa_texformat_rgb_float32
3246 * _mesa_texformat_alpha_float32
3247 * _mesa_texformat_luminance_float32
3248 * _mesa_texformat_luminance_alpha_float32
3249 * _mesa_texformat_intensity_float32
3250 */
3251 static GLboolean
3252 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS)
3253 {
3254 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3255 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3256 const GLint components = _mesa_components_in_format(baseFormat);
3257
3258 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT32 ||
3259 dstFormat == MESA_FORMAT_RGB_FLOAT32 ||
3260 dstFormat == MESA_FORMAT_ALPHA_FLOAT32 ||
3261 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT32 ||
3262 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 ||
3263 dstFormat == MESA_FORMAT_INTENSITY_FLOAT32);
3264 ASSERT(baseInternalFormat == GL_RGBA ||
3265 baseInternalFormat == GL_RGB ||
3266 baseInternalFormat == GL_ALPHA ||
3267 baseInternalFormat == GL_LUMINANCE ||
3268 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3269 baseInternalFormat == GL_INTENSITY);
3270 ASSERT(texelBytes == components * sizeof(GLfloat));
3271
3272 if (!ctx->_ImageTransferState &&
3273 !srcPacking->SwapBytes &&
3274 baseInternalFormat == srcFormat &&
3275 srcType == GL_FLOAT) {
3276 /* simple memcpy path */
3277 memcpy_texture(ctx, dims,
3278 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3279 dstRowStride,
3280 dstImageOffsets,
3281 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3282 srcAddr, srcPacking);
3283 }
3284 else {
3285 /* general path */
3286 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3287 baseInternalFormat,
3288 baseFormat,
3289 srcWidth, srcHeight, srcDepth,
3290 srcFormat, srcType, srcAddr,
3291 srcPacking,
3292 ctx->_ImageTransferState);
3293 const GLfloat *srcRow = tempImage;
3294 GLint bytesPerRow;
3295 GLint img, row;
3296 if (!tempImage)
3297 return GL_FALSE;
3298 bytesPerRow = srcWidth * components * sizeof(GLfloat);
3299 for (img = 0; img < srcDepth; img++) {
3300 GLubyte *dstRow = (GLubyte *) dstAddr
3301 + dstImageOffsets[dstZoffset + img] * texelBytes
3302 + dstYoffset * dstRowStride
3303 + dstXoffset * texelBytes;
3304 for (row = 0; row < srcHeight; row++) {
3305 memcpy(dstRow, srcRow, bytesPerRow);
3306 dstRow += dstRowStride;
3307 srcRow += srcWidth * components;
3308 }
3309 }
3310
3311 free((void *) tempImage);
3312 }
3313 return GL_TRUE;
3314 }
3315
3316
3317
3318 /**
3319 * As above, but store 16-bit floats.
3320 */
3321 static GLboolean
3322 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
3323 {
3324 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3325 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3326 const GLint components = _mesa_components_in_format(baseFormat);
3327
3328 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT16 ||
3329 dstFormat == MESA_FORMAT_RGB_FLOAT16 ||
3330 dstFormat == MESA_FORMAT_ALPHA_FLOAT16 ||
3331 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT16 ||
3332 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 ||
3333 dstFormat == MESA_FORMAT_INTENSITY_FLOAT16);
3334 ASSERT(baseInternalFormat == GL_RGBA ||
3335 baseInternalFormat == GL_RGB ||
3336 baseInternalFormat == GL_ALPHA ||
3337 baseInternalFormat == GL_LUMINANCE ||
3338 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3339 baseInternalFormat == GL_INTENSITY);
3340 ASSERT(texelBytes == components * sizeof(GLhalfARB));
3341
3342 if (!ctx->_ImageTransferState &&
3343 !srcPacking->SwapBytes &&
3344 baseInternalFormat == srcFormat &&
3345 srcType == GL_HALF_FLOAT_ARB) {
3346 /* simple memcpy path */
3347 memcpy_texture(ctx, dims,
3348 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3349 dstRowStride,
3350 dstImageOffsets,
3351 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3352 srcAddr, srcPacking);
3353 }
3354 else {
3355 /* general path */
3356 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3357 baseInternalFormat,
3358 baseFormat,
3359 srcWidth, srcHeight, srcDepth,
3360 srcFormat, srcType, srcAddr,
3361 srcPacking,
3362 ctx->_ImageTransferState);
3363 const GLfloat *src = tempImage;
3364 GLint img, row;
3365 if (!tempImage)
3366 return GL_FALSE;
3367 for (img = 0; img < srcDepth; img++) {
3368 GLubyte *dstRow = (GLubyte *) dstAddr
3369 + dstImageOffsets[dstZoffset + img] * texelBytes
3370 + dstYoffset * dstRowStride
3371 + dstXoffset * texelBytes;
3372 for (row = 0; row < srcHeight; row++) {
3373 GLhalfARB *dstTexel = (GLhalfARB *) dstRow;
3374 GLint i;
3375 for (i = 0; i < srcWidth * components; i++) {
3376 dstTexel[i] = _mesa_float_to_half(src[i]);
3377 }
3378 dstRow += dstRowStride;
3379 src += srcWidth * components;
3380 }
3381 }
3382
3383 free((void *) tempImage);
3384 }
3385 return GL_TRUE;
3386 }
3387
3388
3389 /* non-normalized, signed int8 */
3390 static GLboolean
3391 _mesa_texstore_rgba_int8(TEXSTORE_PARAMS)
3392 {
3393 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3394 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3395 const GLint components = _mesa_components_in_format(baseFormat);
3396
3397 ASSERT(dstFormat == MESA_FORMAT_RGBA_INT8);
3398 ASSERT(baseInternalFormat == GL_RGBA ||
3399 baseInternalFormat == GL_RGB ||
3400 baseInternalFormat == GL_ALPHA ||
3401 baseInternalFormat == GL_LUMINANCE ||
3402 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3403 baseInternalFormat == GL_INTENSITY);
3404 ASSERT(texelBytes == components * sizeof(GLbyte));
3405
3406 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3407 * to integer formats.
3408 */
3409 if (!srcPacking->SwapBytes &&
3410 baseInternalFormat == srcFormat &&
3411 srcType == GL_BYTE) {
3412 /* simple memcpy path */
3413 memcpy_texture(ctx, dims,
3414 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3415 dstRowStride,
3416 dstImageOffsets,
3417 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3418 srcAddr, srcPacking);
3419 }
3420 else {
3421 /* general path */
3422 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3423 baseInternalFormat,
3424 baseFormat,
3425 srcWidth, srcHeight, srcDepth,
3426 srcFormat, srcType, srcAddr,
3427 srcPacking, 0x0);
3428 const GLfloat *src = tempImage;
3429 GLint img, row;
3430 if (!tempImage)
3431 return GL_FALSE;
3432 for (img = 0; img < srcDepth; img++) {
3433 GLubyte *dstRow = (GLubyte *) dstAddr
3434 + dstImageOffsets[dstZoffset + img] * texelBytes
3435 + dstYoffset * dstRowStride
3436 + dstXoffset * texelBytes;
3437 for (row = 0; row < srcHeight; row++) {
3438 GLbyte *dstTexel = (GLbyte *) dstRow;
3439 GLint i;
3440 for (i = 0; i < srcWidth * components; i++) {
3441 dstTexel[i] = (GLbyte) src[i];
3442 }
3443 dstRow += dstRowStride;
3444 src += srcWidth * components;
3445 }
3446 }
3447
3448 free((void *) tempImage);
3449 }
3450 return GL_TRUE;
3451 }
3452
3453
3454 /* non-normalized, signed int16 */
3455 static GLboolean
3456 _mesa_texstore_rgba_int16(TEXSTORE_PARAMS)
3457 {
3458 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3459 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3460 const GLint components = _mesa_components_in_format(baseFormat);
3461
3462 ASSERT(dstFormat == MESA_FORMAT_RGBA_INT16);
3463 ASSERT(baseInternalFormat == GL_RGBA ||
3464 baseInternalFormat == GL_RGB ||
3465 baseInternalFormat == GL_ALPHA ||
3466 baseInternalFormat == GL_LUMINANCE ||
3467 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3468 baseInternalFormat == GL_INTENSITY);
3469 ASSERT(texelBytes == components * sizeof(GLshort));
3470
3471 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3472 * to integer formats.
3473 */
3474 if (!srcPacking->SwapBytes &&
3475 baseInternalFormat == srcFormat &&
3476 srcType == GL_SHORT) {
3477 /* simple memcpy path */
3478 memcpy_texture(ctx, dims,
3479 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3480 dstRowStride,
3481 dstImageOffsets,
3482 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3483 srcAddr, srcPacking);
3484 }
3485 else {
3486 /* general path */
3487 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3488 baseInternalFormat,
3489 baseFormat,
3490 srcWidth, srcHeight, srcDepth,
3491 srcFormat, srcType, srcAddr,
3492 srcPacking, 0x0);
3493 const GLfloat *src = tempImage;
3494 GLint img, row;
3495 if (!tempImage)
3496 return GL_FALSE;
3497 for (img = 0; img < srcDepth; img++) {
3498 GLubyte *dstRow = (GLubyte *) dstAddr
3499 + dstImageOffsets[dstZoffset + img] * texelBytes
3500 + dstYoffset * dstRowStride
3501 + dstXoffset * texelBytes;
3502 for (row = 0; row < srcHeight; row++) {
3503 GLshort *dstTexel = (GLshort *) dstRow;
3504 GLint i;
3505 for (i = 0; i < srcWidth * components; i++) {
3506 dstTexel[i] = (GLint) src[i];
3507 }
3508 dstRow += dstRowStride;
3509 src += srcWidth * components;
3510 }
3511 }
3512
3513 free((void *) tempImage);
3514 }
3515 return GL_TRUE;
3516 }
3517
3518
3519 /* non-normalized, signed int32 */
3520 static GLboolean
3521 _mesa_texstore_rgba_int32(TEXSTORE_PARAMS)
3522 {
3523 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3524 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3525 const GLint components = _mesa_components_in_format(baseFormat);
3526
3527 ASSERT(dstFormat == MESA_FORMAT_RGBA_INT32);
3528 ASSERT(baseInternalFormat == GL_RGBA ||
3529 baseInternalFormat == GL_RGB ||
3530 baseInternalFormat == GL_ALPHA ||
3531 baseInternalFormat == GL_LUMINANCE ||
3532 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3533 baseInternalFormat == GL_INTENSITY);
3534 ASSERT(texelBytes == components * sizeof(GLint));
3535
3536 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3537 * to integer formats.
3538 */
3539 if (!srcPacking->SwapBytes &&
3540 baseInternalFormat == srcFormat &&
3541 srcType == GL_INT) {
3542 /* simple memcpy path */
3543 memcpy_texture(ctx, dims,
3544 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3545 dstRowStride,
3546 dstImageOffsets,
3547 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3548 srcAddr, srcPacking);
3549 }
3550 else {
3551 /* general path */
3552 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
3553 baseInternalFormat,
3554 baseFormat,
3555 srcWidth, srcHeight, srcDepth,
3556 srcFormat, srcType, srcAddr,
3557 srcPacking, 0x0);
3558 const GLfloat *src = tempImage;
3559 GLint img, row;
3560 if (!tempImage)
3561 return GL_FALSE;
3562 for (img = 0; img < srcDepth; img++) {
3563 GLubyte *dstRow = (GLubyte *) dstAddr
3564 + dstImageOffsets[dstZoffset + img] * texelBytes
3565 + dstYoffset * dstRowStride
3566 + dstXoffset * texelBytes;
3567 for (row = 0; row < srcHeight; row++) {
3568 GLint *dstTexel = (GLint *) dstRow;
3569 GLint i;
3570 for (i = 0; i < srcWidth * components; i++) {
3571 dstTexel[i] = (GLint) src[i];
3572 }
3573 dstRow += dstRowStride;
3574 src += srcWidth * components;
3575 }
3576 }
3577
3578 free((void *) tempImage);
3579 }
3580 return GL_TRUE;
3581 }
3582
3583
3584 /* non-normalized, unsigned int8 */
3585 static GLboolean
3586 _mesa_texstore_rgba_uint8(TEXSTORE_PARAMS)
3587 {
3588 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3589 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3590 const GLint components = _mesa_components_in_format(baseFormat);
3591
3592 ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT8);
3593 ASSERT(baseInternalFormat == GL_RGBA ||
3594 baseInternalFormat == GL_RGB ||
3595 baseInternalFormat == GL_ALPHA ||
3596 baseInternalFormat == GL_LUMINANCE ||
3597 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3598 baseInternalFormat == GL_INTENSITY);
3599 ASSERT(texelBytes == components * sizeof(GLubyte));
3600
3601 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3602 * to integer formats.
3603 */
3604 if (!srcPacking->SwapBytes &&
3605 baseInternalFormat == srcFormat &&
3606 srcType == GL_UNSIGNED_BYTE) {
3607 /* simple memcpy path */
3608 memcpy_texture(ctx, dims,
3609 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3610 dstRowStride,
3611 dstImageOffsets,
3612 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3613 srcAddr, srcPacking);
3614 }
3615 else {
3616 /* general path */
3617 const GLuint *tempImage =
3618 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3619 srcWidth, srcHeight, srcDepth,
3620 srcFormat, srcType, srcAddr, srcPacking);
3621 const GLuint *src = tempImage;
3622 GLint img, row;
3623 if (!tempImage)
3624 return GL_FALSE;
3625 for (img = 0; img < srcDepth; img++) {
3626 GLubyte *dstRow = (GLubyte *) dstAddr
3627 + dstImageOffsets[dstZoffset + img] * texelBytes
3628 + dstYoffset * dstRowStride
3629 + dstXoffset * texelBytes;
3630 for (row = 0; row < srcHeight; row++) {
3631 GLubyte *dstTexel = (GLubyte *) dstRow;
3632 GLint i;
3633 for (i = 0; i < srcWidth * components; i++) {
3634 dstTexel[i] = (GLubyte) CLAMP(src[i], 0, 0xff);
3635 }
3636 dstRow += dstRowStride;
3637 src += srcWidth * components;
3638 }
3639 }
3640
3641 free((void *) tempImage);
3642 }
3643 return GL_TRUE;
3644 }
3645
3646
3647 /* non-normalized, unsigned int16 */
3648 static GLboolean
3649 _mesa_texstore_rgba_uint16(TEXSTORE_PARAMS)
3650 {
3651 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3652 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3653 const GLint components = _mesa_components_in_format(baseFormat);
3654
3655 ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT16);
3656 ASSERT(baseInternalFormat == GL_RGBA ||
3657 baseInternalFormat == GL_RGB ||
3658 baseInternalFormat == GL_ALPHA ||
3659 baseInternalFormat == GL_LUMINANCE ||
3660 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3661 baseInternalFormat == GL_INTENSITY);
3662 ASSERT(texelBytes == components * sizeof(GLushort));
3663
3664 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3665 * to integer formats.
3666 */
3667 if (!srcPacking->SwapBytes &&
3668 baseInternalFormat == srcFormat &&
3669 srcType == GL_UNSIGNED_SHORT) {
3670 /* simple memcpy path */
3671 memcpy_texture(ctx, dims,
3672 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3673 dstRowStride,
3674 dstImageOffsets,
3675 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3676 srcAddr, srcPacking);
3677 }
3678 else {
3679 /* general path */
3680 const GLuint *tempImage =
3681 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3682 srcWidth, srcHeight, srcDepth,
3683 srcFormat, srcType, srcAddr, srcPacking);
3684 const GLuint *src = tempImage;
3685 GLint img, row;
3686 if (!tempImage)
3687 return GL_FALSE;
3688 for (img = 0; img < srcDepth; img++) {
3689 GLubyte *dstRow = (GLubyte *) dstAddr
3690 + dstImageOffsets[dstZoffset + img] * texelBytes
3691 + dstYoffset * dstRowStride
3692 + dstXoffset * texelBytes;
3693 for (row = 0; row < srcHeight; row++) {
3694 GLushort *dstTexel = (GLushort *) dstRow;
3695 GLint i;
3696 for (i = 0; i < srcWidth * components; i++) {
3697 dstTexel[i] = (GLushort) CLAMP(src[i], 0, 0xffff);
3698 }
3699 dstRow += dstRowStride;
3700 src += srcWidth * components;
3701 }
3702 }
3703
3704 free((void *) tempImage);
3705 }
3706 return GL_TRUE;
3707 }
3708
3709
3710 /* non-normalized, unsigned int32 */
3711 static GLboolean
3712 _mesa_texstore_rgba_uint32(TEXSTORE_PARAMS)
3713 {
3714 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
3715 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3716 const GLint components = _mesa_components_in_format(baseFormat);
3717
3718 ASSERT(dstFormat == MESA_FORMAT_RGBA_UINT32);
3719 ASSERT(baseInternalFormat == GL_RGBA ||
3720 baseInternalFormat == GL_RGB ||
3721 baseInternalFormat == GL_ALPHA ||
3722 baseInternalFormat == GL_LUMINANCE ||
3723 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3724 baseInternalFormat == GL_INTENSITY);
3725 ASSERT(texelBytes == components * sizeof(GLuint));
3726
3727 /* Note: Pixel transfer ops (scale, bias, table lookup) do not apply
3728 * to integer formats.
3729 */
3730 if (!srcPacking->SwapBytes &&
3731 baseInternalFormat == srcFormat &&
3732 srcType == GL_UNSIGNED_INT) {
3733 /* simple memcpy path */
3734 memcpy_texture(ctx, dims,
3735 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3736 dstRowStride,
3737 dstImageOffsets,
3738 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3739 srcAddr, srcPacking);
3740 }
3741 else {
3742 /* general path */
3743 const GLuint *tempImage =
3744 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3745 srcWidth, srcHeight, srcDepth,
3746 srcFormat, srcType, srcAddr, srcPacking);
3747 const GLuint *src = tempImage;
3748 GLint img, row;
3749 if (!tempImage)
3750 return GL_FALSE;
3751 for (img = 0; img < srcDepth; img++) {
3752 GLubyte *dstRow = (GLubyte *) dstAddr
3753 + dstImageOffsets[dstZoffset + img] * texelBytes
3754 + dstYoffset * dstRowStride
3755 + dstXoffset * texelBytes;
3756 for (row = 0; row < srcHeight; row++) {
3757 GLuint *dstTexel = (GLuint *) dstRow;
3758 GLint i;
3759 for (i = 0; i < srcWidth * components; i++) {
3760 dstTexel[i] = src[i];
3761 }
3762 dstRow += dstRowStride;
3763 src += srcWidth * components;
3764 }
3765 }
3766
3767 free((void *) tempImage);
3768 }
3769 return GL_TRUE;
3770 }
3771
3772
3773
3774
3775 #if FEATURE_EXT_texture_sRGB
3776 static GLboolean
3777 _mesa_texstore_srgb8(TEXSTORE_PARAMS)
3778 {
3779 gl_format newDstFormat;
3780 GLboolean k;
3781
3782 ASSERT(dstFormat == MESA_FORMAT_SRGB8);
3783
3784 /* reuse normal rgb texstore code */
3785 newDstFormat = MESA_FORMAT_RGB888;
3786
3787 k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat,
3788 newDstFormat, dstAddr,
3789 dstXoffset, dstYoffset, dstZoffset,
3790 dstRowStride, dstImageOffsets,
3791 srcWidth, srcHeight, srcDepth,
3792 srcFormat, srcType,
3793 srcAddr, srcPacking);
3794 return k;
3795 }
3796
3797
3798 static GLboolean
3799 _mesa_texstore_srgba8(TEXSTORE_PARAMS)
3800 {
3801 gl_format newDstFormat;
3802 GLboolean k;
3803
3804 ASSERT(dstFormat == MESA_FORMAT_SRGBA8);
3805
3806 /* reuse normal rgba texstore code */
3807 newDstFormat = MESA_FORMAT_RGBA8888;
3808 k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
3809 newDstFormat, dstAddr,
3810 dstXoffset, dstYoffset, dstZoffset,
3811 dstRowStride, dstImageOffsets,
3812 srcWidth, srcHeight, srcDepth,
3813 srcFormat, srcType,
3814 srcAddr, srcPacking);
3815 return k;
3816 }
3817
3818
3819 static GLboolean
3820 _mesa_texstore_sargb8(TEXSTORE_PARAMS)
3821 {
3822 gl_format newDstFormat;
3823 GLboolean k;
3824
3825 ASSERT(dstFormat == MESA_FORMAT_SARGB8);
3826
3827 /* reuse normal rgba texstore code */
3828 newDstFormat = MESA_FORMAT_ARGB8888;
3829
3830 k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat,
3831 newDstFormat, dstAddr,
3832 dstXoffset, dstYoffset, dstZoffset,
3833 dstRowStride, dstImageOffsets,
3834 srcWidth, srcHeight, srcDepth,
3835 srcFormat, srcType,
3836 srcAddr, srcPacking);
3837 return k;
3838 }
3839
3840
3841 static GLboolean
3842 _mesa_texstore_sl8(TEXSTORE_PARAMS)
3843 {
3844 gl_format newDstFormat;
3845 GLboolean k;
3846
3847 ASSERT(dstFormat == MESA_FORMAT_SL8);
3848
3849 newDstFormat = MESA_FORMAT_L8;
3850
3851 /* _mesa_textore_a8 handles luminance8 too */
3852 k = _mesa_texstore_a8(ctx, dims, baseInternalFormat,
3853 newDstFormat, dstAddr,
3854 dstXoffset, dstYoffset, dstZoffset,
3855 dstRowStride, dstImageOffsets,
3856 srcWidth, srcHeight, srcDepth,
3857 srcFormat, srcType,
3858 srcAddr, srcPacking);
3859 return k;
3860 }
3861
3862
3863 static GLboolean
3864 _mesa_texstore_sla8(TEXSTORE_PARAMS)
3865 {
3866 gl_format newDstFormat;
3867 GLboolean k;
3868
3869 ASSERT(dstFormat == MESA_FORMAT_SLA8);
3870
3871 /* reuse normal luminance/alpha texstore code */
3872 newDstFormat = MESA_FORMAT_AL88;
3873
3874 k = _mesa_texstore_unorm88(ctx, dims, baseInternalFormat,
3875 newDstFormat, dstAddr,
3876 dstXoffset, dstYoffset, dstZoffset,
3877 dstRowStride, dstImageOffsets,
3878 srcWidth, srcHeight, srcDepth,
3879 srcFormat, srcType,
3880 srcAddr, srcPacking);
3881 return k;
3882 }
3883
3884 #else
3885
3886 /* these are used only in texstore_funcs[] below */
3887 #define _mesa_texstore_srgb8 NULL
3888 #define _mesa_texstore_srgba8 NULL
3889 #define _mesa_texstore_sargb8 NULL
3890 #define _mesa_texstore_sl8 NULL
3891 #define _mesa_texstore_sla8 NULL
3892
3893 #endif /* FEATURE_EXT_texture_sRGB */
3894
3895
3896
3897
3898 /**
3899 * Table mapping MESA_FORMAT_* to _mesa_texstore_*()
3900 * XXX this is somewhat temporary.
3901 */
3902 static const struct {
3903 gl_format Name;
3904 StoreTexImageFunc Store;
3905 }
3906 texstore_funcs[MESA_FORMAT_COUNT] =
3907 {
3908 { MESA_FORMAT_NONE, NULL },
3909 { MESA_FORMAT_RGBA8888, _mesa_texstore_rgba8888 },
3910 { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 },
3911 { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 },
3912 { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 },
3913 { MESA_FORMAT_XRGB8888, _mesa_texstore_argb8888 },
3914 { MESA_FORMAT_XRGB8888_REV, _mesa_texstore_argb8888 },
3915 { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 },
3916 { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 },
3917 { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 },
3918 { MESA_FORMAT_RGB565_REV, _mesa_texstore_rgb565 },
3919 { MESA_FORMAT_ARGB4444, _mesa_texstore_argb4444 },
3920 { MESA_FORMAT_ARGB4444_REV, _mesa_texstore_argb4444 },
3921 { MESA_FORMAT_RGBA5551, _mesa_texstore_rgba5551 },
3922 { MESA_FORMAT_ARGB1555, _mesa_texstore_argb1555 },
3923 { MESA_FORMAT_ARGB1555_REV, _mesa_texstore_argb1555 },
3924 { MESA_FORMAT_AL88, _mesa_texstore_unorm88 },
3925 { MESA_FORMAT_AL88_REV, _mesa_texstore_unorm88 },
3926 { MESA_FORMAT_AL1616, _mesa_texstore_unorm1616 },
3927 { MESA_FORMAT_AL1616_REV, _mesa_texstore_unorm1616 },
3928 { MESA_FORMAT_RGB332, _mesa_texstore_rgb332 },
3929 { MESA_FORMAT_A8, _mesa_texstore_a8 },
3930 { MESA_FORMAT_L8, _mesa_texstore_a8 },
3931 { MESA_FORMAT_I8, _mesa_texstore_a8 },
3932 { MESA_FORMAT_CI8, _mesa_texstore_ci8 },
3933 { MESA_FORMAT_YCBCR, _mesa_texstore_ycbcr },
3934 { MESA_FORMAT_YCBCR_REV, _mesa_texstore_ycbcr },
3935 { MESA_FORMAT_R8, _mesa_texstore_a8 },
3936 { MESA_FORMAT_RG88, _mesa_texstore_unorm88 },
3937 { MESA_FORMAT_RG88_REV, _mesa_texstore_unorm88 },
3938 { MESA_FORMAT_R16, _mesa_texstore_r16 },
3939 { MESA_FORMAT_RG1616, _mesa_texstore_unorm1616 },
3940 { MESA_FORMAT_RG1616_REV, _mesa_texstore_unorm1616 },
3941 { MESA_FORMAT_Z24_S8, _mesa_texstore_z24_s8 },
3942 { MESA_FORMAT_S8_Z24, _mesa_texstore_s8_z24 },
3943 { MESA_FORMAT_Z16, _mesa_texstore_z16 },
3944 { MESA_FORMAT_X8_Z24, _mesa_texstore_x8_z24 },
3945 { MESA_FORMAT_Z24_X8, _mesa_texstore_z24_x8 },
3946 { MESA_FORMAT_Z32, _mesa_texstore_z32 },
3947 { MESA_FORMAT_S8, _mesa_texstore_s8 },
3948 { MESA_FORMAT_SRGB8, _mesa_texstore_srgb8 },
3949 { MESA_FORMAT_SRGBA8, _mesa_texstore_srgba8 },
3950 { MESA_FORMAT_SARGB8, _mesa_texstore_sargb8 },
3951 { MESA_FORMAT_SL8, _mesa_texstore_sl8 },
3952 { MESA_FORMAT_SLA8, _mesa_texstore_sla8 },
3953 { MESA_FORMAT_SRGB_DXT1, _mesa_texstore_rgb_dxt1 },
3954 { MESA_FORMAT_SRGBA_DXT1, _mesa_texstore_rgba_dxt1 },
3955 { MESA_FORMAT_SRGBA_DXT3, _mesa_texstore_rgba_dxt3 },
3956 { MESA_FORMAT_SRGBA_DXT5, _mesa_texstore_rgba_dxt5 },
3957 { MESA_FORMAT_RGB_FXT1, _mesa_texstore_rgb_fxt1 },
3958 { MESA_FORMAT_RGBA_FXT1, _mesa_texstore_rgba_fxt1 },
3959 { MESA_FORMAT_RGB_DXT1, _mesa_texstore_rgb_dxt1 },
3960 { MESA_FORMAT_RGBA_DXT1, _mesa_texstore_rgba_dxt1 },
3961 { MESA_FORMAT_RGBA_DXT3, _mesa_texstore_rgba_dxt3 },
3962 { MESA_FORMAT_RGBA_DXT5, _mesa_texstore_rgba_dxt5 },
3963 { MESA_FORMAT_RGBA_FLOAT32, _mesa_texstore_rgba_float32 },
3964 { MESA_FORMAT_RGBA_FLOAT16, _mesa_texstore_rgba_float16 },
3965 { MESA_FORMAT_RGB_FLOAT32, _mesa_texstore_rgba_float32 },
3966 { MESA_FORMAT_RGB_FLOAT16, _mesa_texstore_rgba_float16 },
3967 { MESA_FORMAT_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
3968 { MESA_FORMAT_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
3969 { MESA_FORMAT_LUMINANCE_FLOAT32, _mesa_texstore_rgba_float32 },
3970 { MESA_FORMAT_LUMINANCE_FLOAT16, _mesa_texstore_rgba_float16 },
3971 { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
3972 { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
3973 { MESA_FORMAT_INTENSITY_FLOAT32, _mesa_texstore_rgba_float32 },
3974 { MESA_FORMAT_INTENSITY_FLOAT16, _mesa_texstore_rgba_float16 },
3975
3976 { MESA_FORMAT_RGBA_INT8, _mesa_texstore_rgba_int8 },
3977 { MESA_FORMAT_RGBA_INT16, _mesa_texstore_rgba_int16 },
3978 { MESA_FORMAT_RGBA_INT32, _mesa_texstore_rgba_int32 },
3979 { MESA_FORMAT_RGBA_UINT8, _mesa_texstore_rgba_uint8 },
3980 { MESA_FORMAT_RGBA_UINT16, _mesa_texstore_rgba_uint16 },
3981 { MESA_FORMAT_RGBA_UINT32, _mesa_texstore_rgba_uint32 },
3982
3983 { MESA_FORMAT_DUDV8, _mesa_texstore_dudv8 },
3984
3985 { MESA_FORMAT_SIGNED_R8, _mesa_texstore_signed_r8 },
3986 { MESA_FORMAT_SIGNED_RG88, _mesa_texstore_signed_rg88 },
3987 { MESA_FORMAT_SIGNED_RGBX8888, _mesa_texstore_signed_rgbx8888 },
3988
3989 { MESA_FORMAT_SIGNED_RGBA8888, _mesa_texstore_signed_rgba8888 },
3990 { MESA_FORMAT_SIGNED_RGBA8888_REV, _mesa_texstore_signed_rgba8888 },
3991
3992 { MESA_FORMAT_SIGNED_R_16, _mesa_texstore_signed_rgba_16 },
3993 { MESA_FORMAT_SIGNED_RG_16, _mesa_texstore_signed_rgba_16 },
3994 { MESA_FORMAT_SIGNED_RGB_16, _mesa_texstore_signed_rgba_16 },
3995 { MESA_FORMAT_SIGNED_RGBA_16, _mesa_texstore_signed_rgba_16 },
3996 { MESA_FORMAT_RGBA_16, _mesa_texstore_rgba_16 }
3997 };
3998
3999
4000 static GLboolean
4001 _mesa_texstore_null(TEXSTORE_PARAMS)
4002 {
4003 (void) ctx; (void) dims;
4004 (void) baseInternalFormat;
4005 (void) dstFormat;
4006 (void) dstAddr;
4007 (void) dstXoffset; (void) dstYoffset; (void) dstZoffset;
4008 (void) dstRowStride; (void) dstImageOffsets;
4009 (void) srcWidth; (void) srcHeight; (void) srcDepth;
4010 (void) srcFormat; (void) srcType;
4011 (void) srcAddr;
4012 (void) srcPacking;
4013
4014 /* should never happen */
4015 _mesa_problem(NULL, "_mesa_texstore_null() is called");
4016 return GL_FALSE;
4017 }
4018
4019
4020 /**
4021 * Return the StoreTexImageFunc pointer to store an image in the given format.
4022 */
4023 static StoreTexImageFunc
4024 _mesa_get_texstore_func(gl_format format)
4025 {
4026 #ifdef DEBUG
4027 GLuint i;
4028 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
4029 ASSERT(texstore_funcs[i].Name == i);
4030 }
4031 #endif
4032 ASSERT(texstore_funcs[format].Name == format);
4033
4034 if (texstore_funcs[format].Store)
4035 return texstore_funcs[format].Store;
4036 else
4037 return _mesa_texstore_null;
4038 }
4039
4040
4041 /**
4042 * Store user data into texture memory.
4043 * Called via glTex[Sub]Image1/2/3D()
4044 */
4045 GLboolean
4046 _mesa_texstore(TEXSTORE_PARAMS)
4047 {
4048 StoreTexImageFunc storeImage;
4049 GLboolean success;
4050
4051 storeImage = _mesa_get_texstore_func(dstFormat);
4052
4053 success = storeImage(ctx, dims, baseInternalFormat,
4054 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
4055 dstRowStride, dstImageOffsets,
4056 srcWidth, srcHeight, srcDepth,
4057 srcFormat, srcType, srcAddr, srcPacking);
4058 return success;
4059 }
4060
4061
4062 /**
4063 * Check if an unpack PBO is active prior to fetching a texture image.
4064 * If so, do bounds checking and map the buffer into main memory.
4065 * Any errors detected will be recorded.
4066 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
4067 */
4068 const GLvoid *
4069 _mesa_validate_pbo_teximage(struct gl_context *ctx, GLuint dimensions,
4070 GLsizei width, GLsizei height, GLsizei depth,
4071 GLenum format, GLenum type, const GLvoid *pixels,
4072 const struct gl_pixelstore_attrib *unpack,
4073 const char *funcName)
4074 {
4075 GLubyte *buf;
4076
4077 if (!_mesa_is_bufferobj(unpack->BufferObj)) {
4078 /* no PBO */
4079 return pixels;
4080 }
4081 if (!_mesa_validate_pbo_access(dimensions, unpack, width, height, depth,
4082 format, type, pixels)) {
4083 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access)");
4084 return NULL;
4085 }
4086
4087 buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
4088 GL_READ_ONLY_ARB, unpack->BufferObj);
4089 if (!buf) {
4090 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped)");
4091 return NULL;
4092 }
4093
4094 return ADD_POINTERS(buf, pixels);
4095 }
4096
4097
4098 /**
4099 * Check if an unpack PBO is active prior to fetching a compressed texture
4100 * image.
4101 * If so, do bounds checking and map the buffer into main memory.
4102 * Any errors detected will be recorded.
4103 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
4104 */
4105 const GLvoid *
4106 _mesa_validate_pbo_compressed_teximage(struct gl_context *ctx,
4107 GLsizei imageSize, const GLvoid *pixels,
4108 const struct gl_pixelstore_attrib *packing,
4109 const char *funcName)
4110 {
4111 GLubyte *buf;
4112
4113 if (!_mesa_is_bufferobj(packing->BufferObj)) {
4114 /* not using a PBO - return pointer unchanged */
4115 return pixels;
4116 }
4117 if ((const GLubyte *) pixels + imageSize >
4118 ((const GLubyte *) 0) + packing->BufferObj->Size) {
4119 /* out of bounds read! */
4120 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access)");
4121 return NULL;
4122 }
4123
4124 buf = (GLubyte*) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
4125 GL_READ_ONLY_ARB, packing->BufferObj);
4126 if (!buf) {
4127 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped");
4128 return NULL;
4129 }
4130
4131 return ADD_POINTERS(buf, pixels);
4132 }
4133
4134
4135 /**
4136 * This function must be called after either of the validate_pbo_*_teximage()
4137 * functions. It unmaps the PBO buffer if it was mapped earlier.
4138 */
4139 void
4140 _mesa_unmap_teximage_pbo(struct gl_context *ctx,
4141 const struct gl_pixelstore_attrib *unpack)
4142 {
4143 if (_mesa_is_bufferobj(unpack->BufferObj)) {
4144 ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
4145 unpack->BufferObj);
4146 }
4147 }
4148
4149
4150 /** Return texture size in bytes */
4151 static GLuint
4152 texture_size(const struct gl_texture_image *texImage)
4153 {
4154 GLuint sz = _mesa_format_image_size(texImage->TexFormat, texImage->Width,
4155 texImage->Height, texImage->Depth);
4156 return sz;
4157 }
4158
4159
4160 /** Return row stride in bytes */
4161 static GLuint
4162 texture_row_stride(const struct gl_texture_image *texImage)
4163 {
4164 GLuint stride = _mesa_format_row_stride(texImage->TexFormat,
4165 texImage->Width);
4166 return stride;
4167 }
4168
4169
4170
4171 /**
4172 * This is the software fallback for Driver.TexImage1D()
4173 * and Driver.CopyTexImage1D().
4174 * \sa _mesa_store_teximage2d()
4175 */
4176 void
4177 _mesa_store_teximage1d(struct gl_context *ctx, GLenum target, GLint level,
4178 GLint internalFormat,
4179 GLint width, GLint border,
4180 GLenum format, GLenum type, const GLvoid *pixels,
4181 const struct gl_pixelstore_attrib *packing,
4182 struct gl_texture_object *texObj,
4183 struct gl_texture_image *texImage)
4184 {
4185 GLuint sizeInBytes;
4186 (void) border;
4187
4188 /* allocate memory */
4189 sizeInBytes = texture_size(texImage);
4190 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
4191 if (!texImage->Data) {
4192 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
4193 return;
4194 }
4195
4196 pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
4197 pixels, packing, "glTexImage1D");
4198 if (!pixels) {
4199 /* Note: we check for a NULL image pointer here, _after_ we allocated
4200 * memory for the texture. That's what the GL spec calls for.
4201 */
4202 return;
4203 }
4204 else {
4205 const GLint dstRowStride = 0;
4206 GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat,
4207 texImage->TexFormat,
4208 texImage->Data,
4209 0, 0, 0, /* dstX/Y/Zoffset */
4210 dstRowStride,
4211 texImage->ImageOffsets,
4212 width, 1, 1,
4213 format, type, pixels, packing);
4214 if (!success) {
4215 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
4216 }
4217 }
4218
4219 _mesa_unmap_teximage_pbo(ctx, packing);
4220 }
4221
4222
4223 /**
4224 * This is the software fallback for Driver.TexImage2D()
4225 * and Driver.CopyTexImage2D().
4226 *
4227 * This function is oriented toward storing images in main memory, rather
4228 * than VRAM. Device driver's can easily plug in their own replacement.
4229 */
4230 void
4231 _mesa_store_teximage2d(struct gl_context *ctx, GLenum target, GLint level,
4232 GLint internalFormat,
4233 GLint width, GLint height, GLint border,
4234 GLenum format, GLenum type, const void *pixels,
4235 const struct gl_pixelstore_attrib *packing,
4236 struct gl_texture_object *texObj,
4237 struct gl_texture_image *texImage)
4238 {
4239 GLuint sizeInBytes;
4240 (void) border;
4241
4242 /* allocate memory */
4243 sizeInBytes = texture_size(texImage);
4244 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
4245 if (!texImage->Data) {
4246 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
4247 return;
4248 }
4249
4250 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
4251 pixels, packing, "glTexImage2D");
4252 if (!pixels) {
4253 /* Note: we check for a NULL image pointer here, _after_ we allocated
4254 * memory for the texture. That's what the GL spec calls for.
4255 */
4256 return;
4257 }
4258 else {
4259 GLint dstRowStride = texture_row_stride(texImage);
4260 GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat,
4261 texImage->TexFormat,
4262 texImage->Data,
4263 0, 0, 0, /* dstX/Y/Zoffset */
4264 dstRowStride,
4265 texImage->ImageOffsets,
4266 width, height, 1,
4267 format, type, pixels, packing);
4268 if (!success) {
4269 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
4270 }
4271 }
4272
4273 _mesa_unmap_teximage_pbo(ctx, packing);
4274 }
4275
4276
4277
4278 /**
4279 * This is the software fallback for Driver.TexImage3D()
4280 * and Driver.CopyTexImage3D().
4281 * \sa _mesa_store_teximage2d()
4282 */
4283 void
4284 _mesa_store_teximage3d(struct gl_context *ctx, GLenum target, GLint level,
4285 GLint internalFormat,
4286 GLint width, GLint height, GLint depth, GLint border,
4287 GLenum format, GLenum type, const void *pixels,
4288 const struct gl_pixelstore_attrib *packing,
4289 struct gl_texture_object *texObj,
4290 struct gl_texture_image *texImage)
4291 {
4292 GLuint sizeInBytes;
4293 (void) border;
4294
4295 /* allocate memory */
4296 sizeInBytes = texture_size(texImage);
4297 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
4298 if (!texImage->Data) {
4299 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
4300 return;
4301 }
4302
4303 pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
4304 type, pixels, packing, "glTexImage3D");
4305 if (!pixels) {
4306 /* Note: we check for a NULL image pointer here, _after_ we allocated
4307 * memory for the texture. That's what the GL spec calls for.
4308 */
4309 return;
4310 }
4311 else {
4312 GLint dstRowStride = texture_row_stride(texImage);
4313 GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat,
4314 texImage->TexFormat,
4315 texImage->Data,
4316 0, 0, 0, /* dstX/Y/Zoffset */
4317 dstRowStride,
4318 texImage->ImageOffsets,
4319 width, height, depth,
4320 format, type, pixels, packing);
4321 if (!success) {
4322 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
4323 }
4324 }
4325
4326 _mesa_unmap_teximage_pbo(ctx, packing);
4327 }
4328
4329
4330
4331
4332 /*
4333 * This is the software fallback for Driver.TexSubImage1D()
4334 * and Driver.CopyTexSubImage1D().
4335 */
4336 void
4337 _mesa_store_texsubimage1d(struct gl_context *ctx, GLenum target, GLint level,
4338 GLint xoffset, GLint width,
4339 GLenum format, GLenum type, const void *pixels,
4340 const struct gl_pixelstore_attrib *packing,
4341 struct gl_texture_object *texObj,
4342 struct gl_texture_image *texImage)
4343 {
4344 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4345 pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
4346 pixels, packing, "glTexSubImage1D");
4347 if (!pixels)
4348 return;
4349
4350 {
4351 const GLint dstRowStride = 0;
4352 GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat,
4353 texImage->TexFormat,
4354 texImage->Data,
4355 xoffset, 0, 0, /* offsets */
4356 dstRowStride,
4357 texImage->ImageOffsets,
4358 width, 1, 1,
4359 format, type, pixels, packing);
4360 if (!success) {
4361 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D");
4362 }
4363 }
4364
4365 _mesa_unmap_teximage_pbo(ctx, packing);
4366 }
4367
4368
4369
4370 /**
4371 * This is the software fallback for Driver.TexSubImage2D()
4372 * and Driver.CopyTexSubImage2D().
4373 */
4374 void
4375 _mesa_store_texsubimage2d(struct gl_context *ctx, GLenum target, GLint level,
4376 GLint xoffset, GLint yoffset,
4377 GLint width, GLint height,
4378 GLenum format, GLenum type, const void *pixels,
4379 const struct gl_pixelstore_attrib *packing,
4380 struct gl_texture_object *texObj,
4381 struct gl_texture_image *texImage)
4382 {
4383 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4384 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
4385 pixels, packing, "glTexSubImage2D");
4386 if (!pixels)
4387 return;
4388
4389 {
4390 GLint dstRowStride = texture_row_stride(texImage);
4391 GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat,
4392 texImage->TexFormat,
4393 texImage->Data,
4394 xoffset, yoffset, 0,
4395 dstRowStride,
4396 texImage->ImageOffsets,
4397 width, height, 1,
4398 format, type, pixels, packing);
4399 if (!success) {
4400 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
4401 }
4402 }
4403
4404 _mesa_unmap_teximage_pbo(ctx, packing);
4405 }
4406
4407
4408 /*
4409 * This is the software fallback for Driver.TexSubImage3D().
4410 * and Driver.CopyTexSubImage3D().
4411 */
4412 void
4413 _mesa_store_texsubimage3d(struct gl_context *ctx, GLenum target, GLint level,
4414 GLint xoffset, GLint yoffset, GLint zoffset,
4415 GLint width, GLint height, GLint depth,
4416 GLenum format, GLenum type, const void *pixels,
4417 const struct gl_pixelstore_attrib *packing,
4418 struct gl_texture_object *texObj,
4419 struct gl_texture_image *texImage)
4420 {
4421 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4422 pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
4423 type, pixels, packing,
4424 "glTexSubImage3D");
4425 if (!pixels)
4426 return;
4427
4428 {
4429 GLint dstRowStride = texture_row_stride(texImage);
4430 GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat,
4431 texImage->TexFormat,
4432 texImage->Data,
4433 xoffset, yoffset, zoffset,
4434 dstRowStride,
4435 texImage->ImageOffsets,
4436 width, height, depth,
4437 format, type, pixels, packing);
4438 if (!success) {
4439 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage3D");
4440 }
4441 }
4442
4443 _mesa_unmap_teximage_pbo(ctx, packing);
4444 }
4445
4446
4447 /*
4448 * Fallback for Driver.CompressedTexImage1D()
4449 */
4450 void
4451 _mesa_store_compressed_teximage1d(struct gl_context *ctx,
4452 GLenum target, GLint level,
4453 GLint internalFormat,
4454 GLint width, GLint border,
4455 GLsizei imageSize, const GLvoid *data,
4456 struct gl_texture_object *texObj,
4457 struct gl_texture_image *texImage)
4458 {
4459 /* this space intentionally left blank */
4460 (void) ctx;
4461 (void) target; (void) level;
4462 (void) internalFormat;
4463 (void) width; (void) border;
4464 (void) imageSize; (void) data;
4465 (void) texObj;
4466 (void) texImage;
4467 }
4468
4469
4470
4471 /**
4472 * Fallback for Driver.CompressedTexImage2D()
4473 */
4474 void
4475 _mesa_store_compressed_teximage2d(struct gl_context *ctx,
4476 GLenum target, GLint level,
4477 GLint internalFormat,
4478 GLint width, GLint height, GLint border,
4479 GLsizei imageSize, const GLvoid *data,
4480 struct gl_texture_object *texObj,
4481 struct gl_texture_image *texImage)
4482 {
4483 (void) width; (void) height; (void) border;
4484
4485 /* This is pretty simple, basically just do a memcpy without worrying
4486 * about the usual image unpacking or image transfer operations.
4487 */
4488 ASSERT(texObj);
4489 ASSERT(texImage);
4490 ASSERT(texImage->Width > 0);
4491 ASSERT(texImage->Height > 0);
4492 ASSERT(texImage->Depth == 1);
4493 ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */
4494
4495 /* allocate storage */
4496 texImage->Data = _mesa_alloc_texmemory(imageSize);
4497 if (!texImage->Data) {
4498 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB");
4499 return;
4500 }
4501
4502 data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
4503 &ctx->Unpack,
4504 "glCompressedTexImage2D");
4505 if (!data)
4506 return;
4507
4508 /* copy the data */
4509 memcpy(texImage->Data, data, imageSize);
4510
4511 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
4512 }
4513
4514
4515
4516 /*
4517 * Fallback for Driver.CompressedTexImage3D()
4518 */
4519 void
4520 _mesa_store_compressed_teximage3d(struct gl_context *ctx,
4521 GLenum target, GLint level,
4522 GLint internalFormat,
4523 GLint width, GLint height, GLint depth,
4524 GLint border,
4525 GLsizei imageSize, const GLvoid *data,
4526 struct gl_texture_object *texObj,
4527 struct gl_texture_image *texImage)
4528 {
4529 /* this space intentionally left blank */
4530 (void) ctx;
4531 (void) target; (void) level;
4532 (void) internalFormat;
4533 (void) width; (void) height; (void) depth;
4534 (void) border;
4535 (void) imageSize; (void) data;
4536 (void) texObj;
4537 (void) texImage;
4538 }
4539
4540
4541
4542 /**
4543 * Fallback for Driver.CompressedTexSubImage1D()
4544 */
4545 void
4546 _mesa_store_compressed_texsubimage1d(struct gl_context *ctx, GLenum target,
4547 GLint level,
4548 GLint xoffset, GLsizei width,
4549 GLenum format,
4550 GLsizei imageSize, const GLvoid *data,
4551 struct gl_texture_object *texObj,
4552 struct gl_texture_image *texImage)
4553 {
4554 /* there are no compressed 1D texture formats yet */
4555 (void) ctx;
4556 (void) target; (void) level;
4557 (void) xoffset; (void) width;
4558 (void) format;
4559 (void) imageSize; (void) data;
4560 (void) texObj;
4561 (void) texImage;
4562 }
4563
4564
4565 /**
4566 * Fallback for Driver.CompressedTexSubImage2D()
4567 */
4568 void
4569 _mesa_store_compressed_texsubimage2d(struct gl_context *ctx, GLenum target,
4570 GLint level,
4571 GLint xoffset, GLint yoffset,
4572 GLsizei width, GLsizei height,
4573 GLenum format,
4574 GLsizei imageSize, const GLvoid *data,
4575 struct gl_texture_object *texObj,
4576 struct gl_texture_image *texImage)
4577 {
4578 GLint bytesPerRow, destRowStride, srcRowStride;
4579 GLint i, rows;
4580 GLubyte *dest;
4581 const GLubyte *src;
4582 const gl_format texFormat = texImage->TexFormat;
4583 const GLint destWidth = texImage->Width;
4584 GLuint bw, bh;
4585
4586 _mesa_get_format_block_size(texFormat, &bw, &bh);
4587
4588 (void) level;
4589 (void) format;
4590
4591 /* these should have been caught sooner */
4592 ASSERT((width % bw) == 0 || width == 2 || width == 1);
4593 ASSERT((height % bh) == 0 || height == 2 || height == 1);
4594 ASSERT((xoffset % bw) == 0);
4595 ASSERT((yoffset % bh) == 0);
4596
4597 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4598 data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
4599 &ctx->Unpack,
4600 "glCompressedTexSubImage2D");
4601 if (!data)
4602 return;
4603
4604 srcRowStride = _mesa_format_row_stride(texFormat, width);
4605 src = (const GLubyte *) data;
4606
4607 destRowStride = _mesa_format_row_stride(texFormat, destWidth);
4608 dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
4609 texFormat, destWidth,
4610 (GLubyte *) texImage->Data);
4611
4612 bytesPerRow = srcRowStride; /* bytes per row of blocks */
4613 rows = height / bh; /* rows in blocks */
4614
4615 /* copy rows of blocks */
4616 for (i = 0; i < rows; i++) {
4617 memcpy(dest, src, bytesPerRow);
4618 dest += destRowStride;
4619 src += srcRowStride;
4620 }
4621
4622 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
4623 }
4624
4625
4626 /**
4627 * Fallback for Driver.CompressedTexSubImage3D()
4628 */
4629 void
4630 _mesa_store_compressed_texsubimage3d(struct gl_context *ctx, GLenum target,
4631 GLint level,
4632 GLint xoffset, GLint yoffset, GLint zoffset,
4633 GLsizei width, GLsizei height, GLsizei depth,
4634 GLenum format,
4635 GLsizei imageSize, const GLvoid *data,
4636 struct gl_texture_object *texObj,
4637 struct gl_texture_image *texImage)
4638 {
4639 /* there are no compressed 3D texture formats yet */
4640 (void) ctx;
4641 (void) target; (void) level;
4642 (void) xoffset; (void) yoffset; (void) zoffset;
4643 (void) width; (void) height; (void) depth;
4644 (void) format;
4645 (void) imageSize; (void) data;
4646 (void) texObj;
4647 (void) texImage;
4648 }