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mesa: Change "BRIAN PAUL" to "THE AUTHORS" in license text.
[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 * THE AUTHORS 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.TexImage = _mesa_store_teximage;
41 * ctx->Driver.TexSubImage = _mesa_store_texsubimage;
42 * etc...
43 *
44 * Texture image processing is actually kind of complicated. We have to do:
45 * Format/type conversions
46 * pixel unpacking
47 * pixel transfer (scale, bais, lookup, etc)
48 *
49 * These functions can handle most everything, including processing full
50 * images and sub-images.
51 */
52
53
54 #include "glheader.h"
55 #include "bufferobj.h"
56 #include "colormac.h"
57 #include "format_pack.h"
58 #include "image.h"
59 #include "macros.h"
60 #include "mipmap.h"
61 #include "mtypes.h"
62 #include "pack.h"
63 #include "pbo.h"
64 #include "imports.h"
65 #include "texcompress.h"
66 #include "texcompress_fxt1.h"
67 #include "texcompress_rgtc.h"
68 #include "texcompress_s3tc.h"
69 #include "texcompress_etc.h"
70 #include "teximage.h"
71 #include "texstore.h"
72 #include "enums.h"
73 #include "glformats.h"
74 #include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
75 #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
76
77
78 enum {
79 ZERO = 4,
80 ONE = 5
81 };
82
83
84 /**
85 * Texture image storage function.
86 */
87 typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS);
88
89
90 /**
91 * Return GL_TRUE if the given image format is one that be converted
92 * to another format by swizzling.
93 */
94 static GLboolean
95 can_swizzle(GLenum logicalBaseFormat)
96 {
97 switch (logicalBaseFormat) {
98 case GL_RGBA:
99 case GL_RGB:
100 case GL_LUMINANCE_ALPHA:
101 case GL_INTENSITY:
102 case GL_ALPHA:
103 case GL_LUMINANCE:
104 case GL_RED:
105 case GL_GREEN:
106 case GL_BLUE:
107 case GL_BGR:
108 case GL_BGRA:
109 case GL_ABGR_EXT:
110 case GL_RG:
111 return GL_TRUE;
112 default:
113 return GL_FALSE;
114 }
115 }
116
117
118
119 enum {
120 IDX_LUMINANCE = 0,
121 IDX_ALPHA,
122 IDX_INTENSITY,
123 IDX_LUMINANCE_ALPHA,
124 IDX_RGB,
125 IDX_RGBA,
126 IDX_RED,
127 IDX_GREEN,
128 IDX_BLUE,
129 IDX_BGR,
130 IDX_BGRA,
131 IDX_ABGR,
132 IDX_RG,
133 MAX_IDX
134 };
135
136 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
137 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
138 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
139 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
140
141
142 static const struct {
143 GLubyte format_idx;
144 GLubyte to_rgba[6];
145 GLubyte from_rgba[6];
146 } mappings[MAX_IDX] =
147 {
148 {
149 IDX_LUMINANCE,
150 MAP4(0,0,0,ONE),
151 MAP1(0)
152 },
153
154 {
155 IDX_ALPHA,
156 MAP4(ZERO, ZERO, ZERO, 0),
157 MAP1(3)
158 },
159
160 {
161 IDX_INTENSITY,
162 MAP4(0, 0, 0, 0),
163 MAP1(0),
164 },
165
166 {
167 IDX_LUMINANCE_ALPHA,
168 MAP4(0,0,0,1),
169 MAP2(0,3)
170 },
171
172 {
173 IDX_RGB,
174 MAP4(0,1,2,ONE),
175 MAP3(0,1,2)
176 },
177
178 {
179 IDX_RGBA,
180 MAP4(0,1,2,3),
181 MAP4(0,1,2,3),
182 },
183
184 {
185 IDX_RED,
186 MAP4(0, ZERO, ZERO, ONE),
187 MAP1(0),
188 },
189
190 {
191 IDX_GREEN,
192 MAP4(ZERO, 0, ZERO, ONE),
193 MAP1(1),
194 },
195
196 {
197 IDX_BLUE,
198 MAP4(ZERO, ZERO, 0, ONE),
199 MAP1(2),
200 },
201
202 {
203 IDX_BGR,
204 MAP4(2,1,0,ONE),
205 MAP3(2,1,0)
206 },
207
208 {
209 IDX_BGRA,
210 MAP4(2,1,0,3),
211 MAP4(2,1,0,3)
212 },
213
214 {
215 IDX_ABGR,
216 MAP4(3,2,1,0),
217 MAP4(3,2,1,0)
218 },
219
220 {
221 IDX_RG,
222 MAP4(0, 1, ZERO, ONE),
223 MAP2(0, 1)
224 },
225 };
226
227
228
229 /**
230 * Convert a GL image format enum to an IDX_* value (see above).
231 */
232 static int
233 get_map_idx(GLenum value)
234 {
235 switch (value) {
236 case GL_LUMINANCE: return IDX_LUMINANCE;
237 case GL_ALPHA: return IDX_ALPHA;
238 case GL_INTENSITY: return IDX_INTENSITY;
239 case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA;
240 case GL_RGB: return IDX_RGB;
241 case GL_RGBA: return IDX_RGBA;
242 case GL_RED: return IDX_RED;
243 case GL_GREEN: return IDX_GREEN;
244 case GL_BLUE: return IDX_BLUE;
245 case GL_BGR: return IDX_BGR;
246 case GL_BGRA: return IDX_BGRA;
247 case GL_ABGR_EXT: return IDX_ABGR;
248 case GL_RG: return IDX_RG;
249 default:
250 _mesa_problem(NULL, "Unexpected inFormat");
251 return 0;
252 }
253 }
254
255
256 /**
257 * When promoting texture formats (see below) we need to compute the
258 * mapping of dest components back to source components.
259 * This function does that.
260 * \param inFormat the incoming format of the texture
261 * \param outFormat the final texture format
262 * \return map[6] a full 6-component map
263 */
264 static void
265 compute_component_mapping(GLenum inFormat, GLenum outFormat,
266 GLubyte *map)
267 {
268 const int inFmt = get_map_idx(inFormat);
269 const int outFmt = get_map_idx(outFormat);
270 const GLubyte *in2rgba = mappings[inFmt].to_rgba;
271 const GLubyte *rgba2out = mappings[outFmt].from_rgba;
272 int i;
273
274 for (i = 0; i < 4; i++)
275 map[i] = in2rgba[rgba2out[i]];
276
277 map[ZERO] = ZERO;
278 map[ONE] = ONE;
279
280 #if 0
281 printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
282 inFormat, _mesa_lookup_enum_by_nr(inFormat),
283 outFormat, _mesa_lookup_enum_by_nr(outFormat),
284 map[0],
285 map[1],
286 map[2],
287 map[3],
288 map[4],
289 map[5]);
290 #endif
291 }
292
293
294 /**
295 * Make a temporary (color) texture image with GLfloat components.
296 * Apply all needed pixel unpacking and pixel transfer operations.
297 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
298 * Suppose the user specifies GL_LUMINANCE as the internal texture format
299 * but the graphics hardware doesn't support luminance textures. So, we might
300 * use an RGB hardware format instead.
301 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
302 *
303 * \param ctx the rendering context
304 * \param dims image dimensions: 1, 2 or 3
305 * \param logicalBaseFormat basic texture derived from the user's
306 * internal texture format value
307 * \param textureBaseFormat the actual basic format of the texture
308 * \param srcWidth source image width
309 * \param srcHeight source image height
310 * \param srcDepth source image depth
311 * \param srcFormat source image format
312 * \param srcType source image type
313 * \param srcAddr source image address
314 * \param srcPacking source image pixel packing
315 * \return resulting image with format = textureBaseFormat and type = GLfloat.
316 */
317 GLfloat *
318 _mesa_make_temp_float_image(struct gl_context *ctx, GLuint dims,
319 GLenum logicalBaseFormat,
320 GLenum textureBaseFormat,
321 GLint srcWidth, GLint srcHeight, GLint srcDepth,
322 GLenum srcFormat, GLenum srcType,
323 const GLvoid *srcAddr,
324 const struct gl_pixelstore_attrib *srcPacking,
325 GLbitfield transferOps)
326 {
327 GLfloat *tempImage;
328 const GLint components = _mesa_components_in_format(logicalBaseFormat);
329 const GLint srcStride =
330 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
331 GLfloat *dst;
332 GLint img, row;
333
334 ASSERT(dims >= 1 && dims <= 3);
335
336 ASSERT(logicalBaseFormat == GL_RGBA ||
337 logicalBaseFormat == GL_RGB ||
338 logicalBaseFormat == GL_RG ||
339 logicalBaseFormat == GL_RED ||
340 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
341 logicalBaseFormat == GL_LUMINANCE ||
342 logicalBaseFormat == GL_ALPHA ||
343 logicalBaseFormat == GL_INTENSITY ||
344 logicalBaseFormat == GL_DEPTH_COMPONENT);
345
346 ASSERT(textureBaseFormat == GL_RGBA ||
347 textureBaseFormat == GL_RGB ||
348 textureBaseFormat == GL_RG ||
349 textureBaseFormat == GL_RED ||
350 textureBaseFormat == GL_LUMINANCE_ALPHA ||
351 textureBaseFormat == GL_LUMINANCE ||
352 textureBaseFormat == GL_ALPHA ||
353 textureBaseFormat == GL_INTENSITY ||
354 textureBaseFormat == GL_DEPTH_COMPONENT);
355
356 tempImage = malloc(srcWidth * srcHeight * srcDepth
357 * components * sizeof(GLfloat));
358 if (!tempImage)
359 return NULL;
360
361 dst = tempImage;
362 for (img = 0; img < srcDepth; img++) {
363 const GLubyte *src
364 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
365 srcWidth, srcHeight,
366 srcFormat, srcType,
367 img, 0, 0);
368 for (row = 0; row < srcHeight; row++) {
369 _mesa_unpack_color_span_float(ctx, srcWidth, logicalBaseFormat,
370 dst, srcFormat, srcType, src,
371 srcPacking, transferOps);
372 dst += srcWidth * components;
373 src += srcStride;
374 }
375 }
376
377 if (logicalBaseFormat != textureBaseFormat) {
378 /* more work */
379 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
380 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
381 GLfloat *newImage;
382 GLint i, n;
383 GLubyte map[6];
384
385 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
386 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
387 textureBaseFormat == GL_LUMINANCE_ALPHA);
388
389 /* The actual texture format should have at least as many components
390 * as the logical texture format.
391 */
392 ASSERT(texComponents >= logComponents);
393
394 newImage = malloc(srcWidth * srcHeight * srcDepth
395 * texComponents * sizeof(GLfloat));
396 if (!newImage) {
397 free(tempImage);
398 return NULL;
399 }
400
401 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
402
403 n = srcWidth * srcHeight * srcDepth;
404 for (i = 0; i < n; i++) {
405 GLint k;
406 for (k = 0; k < texComponents; k++) {
407 GLint j = map[k];
408 if (j == ZERO)
409 newImage[i * texComponents + k] = 0.0F;
410 else if (j == ONE)
411 newImage[i * texComponents + k] = 1.0F;
412 else
413 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
414 }
415 }
416
417 free(tempImage);
418 tempImage = newImage;
419 }
420
421 return tempImage;
422 }
423
424
425 /**
426 * Make temporary image with uint pixel values. Used for unsigned
427 * integer-valued textures.
428 */
429 static GLuint *
430 make_temp_uint_image(struct gl_context *ctx, GLuint dims,
431 GLenum logicalBaseFormat,
432 GLenum textureBaseFormat,
433 GLint srcWidth, GLint srcHeight, GLint srcDepth,
434 GLenum srcFormat, GLenum srcType,
435 const GLvoid *srcAddr,
436 const struct gl_pixelstore_attrib *srcPacking)
437 {
438 GLuint *tempImage;
439 const GLint components = _mesa_components_in_format(logicalBaseFormat);
440 const GLint srcStride =
441 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
442 GLuint *dst;
443 GLint img, row;
444
445 ASSERT(dims >= 1 && dims <= 3);
446
447 ASSERT(logicalBaseFormat == GL_RGBA ||
448 logicalBaseFormat == GL_RGB ||
449 logicalBaseFormat == GL_RG ||
450 logicalBaseFormat == GL_RED ||
451 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
452 logicalBaseFormat == GL_LUMINANCE ||
453 logicalBaseFormat == GL_INTENSITY ||
454 logicalBaseFormat == GL_ALPHA);
455
456 ASSERT(textureBaseFormat == GL_RGBA ||
457 textureBaseFormat == GL_RGB ||
458 textureBaseFormat == GL_RG ||
459 textureBaseFormat == GL_RED ||
460 textureBaseFormat == GL_LUMINANCE_ALPHA ||
461 textureBaseFormat == GL_LUMINANCE ||
462 textureBaseFormat == GL_INTENSITY ||
463 textureBaseFormat == GL_ALPHA);
464
465 tempImage = malloc(srcWidth * srcHeight * srcDepth
466 * components * sizeof(GLuint));
467 if (!tempImage)
468 return NULL;
469
470 dst = tempImage;
471 for (img = 0; img < srcDepth; img++) {
472 const GLubyte *src
473 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
474 srcWidth, srcHeight,
475 srcFormat, srcType,
476 img, 0, 0);
477 for (row = 0; row < srcHeight; row++) {
478 _mesa_unpack_color_span_uint(ctx, srcWidth, logicalBaseFormat,
479 dst, srcFormat, srcType, src,
480 srcPacking);
481 dst += srcWidth * components;
482 src += srcStride;
483 }
484 }
485
486 if (logicalBaseFormat != textureBaseFormat) {
487 /* more work */
488 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
489 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
490 GLuint *newImage;
491 GLint i, n;
492 GLubyte map[6];
493
494 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
495 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
496 textureBaseFormat == GL_LUMINANCE_ALPHA);
497
498 /* The actual texture format should have at least as many components
499 * as the logical texture format.
500 */
501 ASSERT(texComponents >= logComponents);
502
503 newImage = malloc(srcWidth * srcHeight * srcDepth
504 * texComponents * sizeof(GLuint));
505 if (!newImage) {
506 free(tempImage);
507 return NULL;
508 }
509
510 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
511
512 n = srcWidth * srcHeight * srcDepth;
513 for (i = 0; i < n; i++) {
514 GLint k;
515 for (k = 0; k < texComponents; k++) {
516 GLint j = map[k];
517 if (j == ZERO)
518 newImage[i * texComponents + k] = 0;
519 else if (j == ONE)
520 newImage[i * texComponents + k] = 1;
521 else
522 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
523 }
524 }
525
526 free(tempImage);
527 tempImage = newImage;
528 }
529
530 return tempImage;
531 }
532
533
534
535 /**
536 * Make a temporary (color) texture image with GLubyte components.
537 * Apply all needed pixel unpacking and pixel transfer operations.
538 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
539 * Suppose the user specifies GL_LUMINANCE as the internal texture format
540 * but the graphics hardware doesn't support luminance textures. So, we might
541 * use an RGB hardware format instead.
542 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
543 *
544 * \param ctx the rendering context
545 * \param dims image dimensions: 1, 2 or 3
546 * \param logicalBaseFormat basic texture derived from the user's
547 * internal texture format value
548 * \param textureBaseFormat the actual basic format of the texture
549 * \param srcWidth source image width
550 * \param srcHeight source image height
551 * \param srcDepth source image depth
552 * \param srcFormat source image format
553 * \param srcType source image type
554 * \param srcAddr source image address
555 * \param srcPacking source image pixel packing
556 * \return resulting image with format = textureBaseFormat and type = GLubyte.
557 */
558 GLubyte *
559 _mesa_make_temp_ubyte_image(struct gl_context *ctx, GLuint dims,
560 GLenum logicalBaseFormat,
561 GLenum textureBaseFormat,
562 GLint srcWidth, GLint srcHeight, GLint srcDepth,
563 GLenum srcFormat, GLenum srcType,
564 const GLvoid *srcAddr,
565 const struct gl_pixelstore_attrib *srcPacking)
566 {
567 GLuint transferOps = ctx->_ImageTransferState;
568 const GLint components = _mesa_components_in_format(logicalBaseFormat);
569 GLint img, row;
570 GLubyte *tempImage, *dst;
571
572 ASSERT(dims >= 1 && dims <= 3);
573
574 ASSERT(logicalBaseFormat == GL_RGBA ||
575 logicalBaseFormat == GL_RGB ||
576 logicalBaseFormat == GL_RG ||
577 logicalBaseFormat == GL_RED ||
578 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
579 logicalBaseFormat == GL_LUMINANCE ||
580 logicalBaseFormat == GL_ALPHA ||
581 logicalBaseFormat == GL_INTENSITY);
582
583 ASSERT(textureBaseFormat == GL_RGBA ||
584 textureBaseFormat == GL_RGB ||
585 textureBaseFormat == GL_RG ||
586 textureBaseFormat == GL_RED ||
587 textureBaseFormat == GL_LUMINANCE_ALPHA ||
588 textureBaseFormat == GL_LUMINANCE ||
589 textureBaseFormat == GL_ALPHA ||
590 textureBaseFormat == GL_INTENSITY);
591
592 /* unpack and transfer the source image */
593 tempImage = malloc(srcWidth * srcHeight * srcDepth
594 * components * sizeof(GLubyte));
595 if (!tempImage) {
596 return NULL;
597 }
598
599 dst = tempImage;
600 for (img = 0; img < srcDepth; img++) {
601 const GLint srcStride =
602 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
603 const GLubyte *src =
604 (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
605 srcWidth, srcHeight,
606 srcFormat, srcType,
607 img, 0, 0);
608 for (row = 0; row < srcHeight; row++) {
609 _mesa_unpack_color_span_ubyte(ctx, srcWidth, logicalBaseFormat, dst,
610 srcFormat, srcType, src, srcPacking,
611 transferOps);
612 dst += srcWidth * components;
613 src += srcStride;
614 }
615 }
616
617 if (logicalBaseFormat != textureBaseFormat) {
618 /* one more conversion step */
619 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
620 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
621 GLubyte *newImage;
622 GLint i, n;
623 GLubyte map[6];
624
625 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
626 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
627 textureBaseFormat == GL_LUMINANCE_ALPHA);
628
629 /* The actual texture format should have at least as many components
630 * as the logical texture format.
631 */
632 ASSERT(texComponents >= logComponents);
633
634 newImage = malloc(srcWidth * srcHeight * srcDepth
635 * texComponents * sizeof(GLubyte));
636 if (!newImage) {
637 free(tempImage);
638 return NULL;
639 }
640
641 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
642
643 n = srcWidth * srcHeight * srcDepth;
644 for (i = 0; i < n; i++) {
645 GLint k;
646 for (k = 0; k < texComponents; k++) {
647 GLint j = map[k];
648 if (j == ZERO)
649 newImage[i * texComponents + k] = 0;
650 else if (j == ONE)
651 newImage[i * texComponents + k] = 255;
652 else
653 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
654 }
655 }
656
657 free(tempImage);
658 tempImage = newImage;
659 }
660
661 return tempImage;
662 }
663
664
665 /**
666 * Copy GLubyte pixels from <src> to <dst> with swizzling.
667 * \param dst destination pixels
668 * \param dstComponents number of color components in destination pixels
669 * \param src source pixels
670 * \param srcComponents number of color components in source pixels
671 * \param map the swizzle mapping. map[X] says where to find the X component
672 * in the source image's pixels. For example, if the source image
673 * is GL_BGRA and X = red, map[0] yields 2.
674 * \param count number of pixels to copy/swizzle.
675 */
676 static void
677 swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src,
678 GLuint srcComponents, const GLubyte *map, GLuint count)
679 {
680 #define SWZ_CPY(dst, src, count, dstComps, srcComps) \
681 do { \
682 GLuint i; \
683 for (i = 0; i < count; i++) { \
684 GLuint j; \
685 if (srcComps == 4) { \
686 COPY_4UBV(tmp, src); \
687 } \
688 else { \
689 for (j = 0; j < srcComps; j++) { \
690 tmp[j] = src[j]; \
691 } \
692 } \
693 src += srcComps; \
694 for (j = 0; j < dstComps; j++) { \
695 dst[j] = tmp[map[j]]; \
696 } \
697 dst += dstComps; \
698 } \
699 } while (0)
700
701 GLubyte tmp[6];
702
703 tmp[ZERO] = 0x0;
704 tmp[ONE] = 0xff;
705
706 ASSERT(srcComponents <= 4);
707 ASSERT(dstComponents <= 4);
708
709 switch (dstComponents) {
710 case 4:
711 switch (srcComponents) {
712 case 4:
713 SWZ_CPY(dst, src, count, 4, 4);
714 break;
715 case 3:
716 SWZ_CPY(dst, src, count, 4, 3);
717 break;
718 case 2:
719 SWZ_CPY(dst, src, count, 4, 2);
720 break;
721 case 1:
722 SWZ_CPY(dst, src, count, 4, 1);
723 break;
724 default:
725 ;
726 }
727 break;
728 case 3:
729 switch (srcComponents) {
730 case 4:
731 SWZ_CPY(dst, src, count, 3, 4);
732 break;
733 case 3:
734 SWZ_CPY(dst, src, count, 3, 3);
735 break;
736 case 2:
737 SWZ_CPY(dst, src, count, 3, 2);
738 break;
739 case 1:
740 SWZ_CPY(dst, src, count, 3, 1);
741 break;
742 default:
743 ;
744 }
745 break;
746 case 2:
747 switch (srcComponents) {
748 case 4:
749 SWZ_CPY(dst, src, count, 2, 4);
750 break;
751 case 3:
752 SWZ_CPY(dst, src, count, 2, 3);
753 break;
754 case 2:
755 SWZ_CPY(dst, src, count, 2, 2);
756 break;
757 case 1:
758 SWZ_CPY(dst, src, count, 2, 1);
759 break;
760 default:
761 ;
762 }
763 break;
764 case 1:
765 switch (srcComponents) {
766 case 4:
767 SWZ_CPY(dst, src, count, 1, 4);
768 break;
769 case 3:
770 SWZ_CPY(dst, src, count, 1, 3);
771 break;
772 case 2:
773 SWZ_CPY(dst, src, count, 1, 2);
774 break;
775 case 1:
776 SWZ_CPY(dst, src, count, 1, 1);
777 break;
778 default:
779 ;
780 }
781 break;
782 default:
783 ;
784 }
785 #undef SWZ_CPY
786 }
787
788
789
790 static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
791 static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
792
793
794 /**
795 * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
796 * mapping array depending on endianness.
797 */
798 static const GLubyte *
799 type_mapping( GLenum srcType )
800 {
801 switch (srcType) {
802 case GL_BYTE:
803 case GL_UNSIGNED_BYTE:
804 return map_identity;
805 case GL_UNSIGNED_INT_8_8_8_8:
806 return _mesa_little_endian() ? map_3210 : map_identity;
807 case GL_UNSIGNED_INT_8_8_8_8_REV:
808 return _mesa_little_endian() ? map_identity : map_3210;
809 default:
810 return NULL;
811 }
812 }
813
814
815 /**
816 * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a
817 * mapping array depending on pixelstore byte swapping state.
818 */
819 static const GLubyte *
820 byteswap_mapping( GLboolean swapBytes,
821 GLenum srcType )
822 {
823 if (!swapBytes)
824 return map_identity;
825
826 switch (srcType) {
827 case GL_BYTE:
828 case GL_UNSIGNED_BYTE:
829 return map_identity;
830 case GL_UNSIGNED_INT_8_8_8_8:
831 case GL_UNSIGNED_INT_8_8_8_8_REV:
832 return map_3210;
833 default:
834 return NULL;
835 }
836 }
837
838
839
840 /**
841 * Transfer a GLubyte texture image with component swizzling.
842 */
843 static void
844 _mesa_swizzle_ubyte_image(struct gl_context *ctx,
845 GLuint dimensions,
846 GLenum srcFormat,
847 GLenum srcType,
848
849 GLenum baseInternalFormat,
850
851 const GLubyte *rgba2dst,
852 GLuint dstComponents,
853
854 GLint dstRowStride,
855 GLubyte **dstSlices,
856
857 GLint srcWidth, GLint srcHeight, GLint srcDepth,
858 const GLvoid *srcAddr,
859 const struct gl_pixelstore_attrib *srcPacking )
860 {
861 GLint srcComponents = _mesa_components_in_format(srcFormat);
862 const GLubyte *srctype2ubyte, *swap;
863 GLubyte map[4], src2base[6], base2rgba[6];
864 GLint i;
865 const GLint srcRowStride =
866 _mesa_image_row_stride(srcPacking, srcWidth,
867 srcFormat, GL_UNSIGNED_BYTE);
868 const GLint srcImageStride
869 = _mesa_image_image_stride(srcPacking, srcWidth, srcHeight, srcFormat,
870 GL_UNSIGNED_BYTE);
871 const GLubyte *srcImage
872 = (const GLubyte *) _mesa_image_address(dimensions, srcPacking, srcAddr,
873 srcWidth, srcHeight, srcFormat,
874 GL_UNSIGNED_BYTE, 0, 0, 0);
875
876 (void) ctx;
877
878 /* Translate from src->baseInternal->GL_RGBA->dst. This will
879 * correctly deal with RGBA->RGB->RGBA conversions where the final
880 * A value must be 0xff regardless of the incoming alpha values.
881 */
882 compute_component_mapping(srcFormat, baseInternalFormat, src2base);
883 compute_component_mapping(baseInternalFormat, GL_RGBA, base2rgba);
884 swap = byteswap_mapping(srcPacking->SwapBytes, srcType);
885 srctype2ubyte = type_mapping(srcType);
886
887
888 for (i = 0; i < 4; i++)
889 map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]];
890
891 /* printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
892
893 if (srcComponents == dstComponents &&
894 srcRowStride == dstRowStride &&
895 srcRowStride == srcWidth * srcComponents &&
896 dimensions < 3) {
897 /* 1 and 2D images only */
898 GLubyte *dstImage = dstSlices[0];
899 swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map,
900 srcWidth * srcHeight);
901 }
902 else {
903 GLint img, row;
904 for (img = 0; img < srcDepth; img++) {
905 const GLubyte *srcRow = srcImage;
906 GLubyte *dstRow = dstSlices[img];
907 for (row = 0; row < srcHeight; row++) {
908 swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth);
909 dstRow += dstRowStride;
910 srcRow += srcRowStride;
911 }
912 srcImage += srcImageStride;
913 }
914 }
915 }
916
917
918 /**
919 * Teximage storage routine for when a simple memcpy will do.
920 * No pixel transfer operations or special texel encodings allowed.
921 * 1D, 2D and 3D images supported.
922 */
923 static void
924 memcpy_texture(struct gl_context *ctx,
925 GLuint dimensions,
926 gl_format dstFormat,
927 GLint dstRowStride,
928 GLubyte **dstSlices,
929 GLint srcWidth, GLint srcHeight, GLint srcDepth,
930 GLenum srcFormat, GLenum srcType,
931 const GLvoid *srcAddr,
932 const struct gl_pixelstore_attrib *srcPacking)
933 {
934 const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth,
935 srcFormat, srcType);
936 const GLint srcImageStride = _mesa_image_image_stride(srcPacking,
937 srcWidth, srcHeight, srcFormat, srcType);
938 const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions,
939 srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0);
940 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
941 const GLint bytesPerRow = srcWidth * texelBytes;
942
943 if (dstRowStride == srcRowStride &&
944 dstRowStride == bytesPerRow) {
945 /* memcpy image by image */
946 GLint img;
947 for (img = 0; img < srcDepth; img++) {
948 GLubyte *dstImage = dstSlices[img];
949 memcpy(dstImage, srcImage, bytesPerRow * srcHeight);
950 srcImage += srcImageStride;
951 }
952 }
953 else {
954 /* memcpy row by row */
955 GLint img, row;
956 for (img = 0; img < srcDepth; img++) {
957 const GLubyte *srcRow = srcImage;
958 GLubyte *dstRow = dstSlices[img];
959 for (row = 0; row < srcHeight; row++) {
960 memcpy(dstRow, srcRow, bytesPerRow);
961 dstRow += dstRowStride;
962 srcRow += srcRowStride;
963 }
964 srcImage += srcImageStride;
965 }
966 }
967 }
968
969
970 /**
971 * General-case function for storing a color texture images with
972 * components that can be represented with ubytes. Example destination
973 * texture formats are MESA_FORMAT_ARGB888, ARGB4444, RGB565.
974 */
975 static GLboolean
976 store_ubyte_texture(TEXSTORE_PARAMS)
977 {
978 const GLint srcRowStride = srcWidth * 4 * sizeof(GLubyte);
979 GLubyte *tempImage, *src;
980 GLint img;
981
982 tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
983 baseInternalFormat,
984 GL_RGBA,
985 srcWidth, srcHeight, srcDepth,
986 srcFormat, srcType, srcAddr,
987 srcPacking);
988 if (!tempImage)
989 return GL_FALSE;
990
991 src = tempImage;
992 for (img = 0; img < srcDepth; img++) {
993 _mesa_pack_ubyte_rgba_rect(dstFormat, srcWidth, srcHeight,
994 src, srcRowStride,
995 dstSlices[img], dstRowStride);
996 src += srcHeight * srcRowStride;
997 }
998 free(tempImage);
999
1000 return GL_TRUE;
1001 }
1002
1003
1004
1005
1006 /**
1007 * Store a 32-bit integer or float depth component texture image.
1008 */
1009 static GLboolean
1010 _mesa_texstore_z32(TEXSTORE_PARAMS)
1011 {
1012 const GLuint depthScale = 0xffffffff;
1013 GLenum dstType;
1014 (void) dims;
1015 ASSERT(dstFormat == MESA_FORMAT_Z32 ||
1016 dstFormat == MESA_FORMAT_Z32_FLOAT);
1017 ASSERT(_mesa_get_format_bytes(dstFormat) == sizeof(GLuint));
1018
1019 if (dstFormat == MESA_FORMAT_Z32)
1020 dstType = GL_UNSIGNED_INT;
1021 else
1022 dstType = GL_FLOAT;
1023
1024 {
1025 /* general path */
1026 GLint img, row;
1027 for (img = 0; img < srcDepth; img++) {
1028 GLubyte *dstRow = dstSlices[img];
1029 for (row = 0; row < srcHeight; row++) {
1030 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1031 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1032 _mesa_unpack_depth_span(ctx, srcWidth,
1033 dstType, dstRow,
1034 depthScale, srcType, src, srcPacking);
1035 dstRow += dstRowStride;
1036 }
1037 }
1038 }
1039 return GL_TRUE;
1040 }
1041
1042
1043 /**
1044 * Store a 24-bit integer depth component texture image.
1045 */
1046 static GLboolean
1047 _mesa_texstore_x8_z24(TEXSTORE_PARAMS)
1048 {
1049 const GLuint depthScale = 0xffffff;
1050
1051 (void) dims;
1052 ASSERT(dstFormat == MESA_FORMAT_X8_Z24);
1053
1054 {
1055 /* general path */
1056 GLint img, row;
1057 for (img = 0; img < srcDepth; img++) {
1058 GLubyte *dstRow = dstSlices[img];
1059 for (row = 0; row < srcHeight; row++) {
1060 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1061 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1062 _mesa_unpack_depth_span(ctx, srcWidth,
1063 GL_UNSIGNED_INT, (GLuint *) dstRow,
1064 depthScale, srcType, src, srcPacking);
1065 dstRow += dstRowStride;
1066 }
1067 }
1068 }
1069 return GL_TRUE;
1070 }
1071
1072
1073 /**
1074 * Store a 24-bit integer depth component texture image.
1075 */
1076 static GLboolean
1077 _mesa_texstore_z24_x8(TEXSTORE_PARAMS)
1078 {
1079 const GLuint depthScale = 0xffffff;
1080
1081 (void) dims;
1082 ASSERT(dstFormat == MESA_FORMAT_Z24_X8);
1083
1084 {
1085 /* general path */
1086 GLint img, row;
1087 for (img = 0; img < srcDepth; img++) {
1088 GLubyte *dstRow = dstSlices[img];
1089 for (row = 0; row < srcHeight; row++) {
1090 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1091 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1092 GLuint *dst = (GLuint *) dstRow;
1093 GLint i;
1094 _mesa_unpack_depth_span(ctx, srcWidth,
1095 GL_UNSIGNED_INT, dst,
1096 depthScale, srcType, src, srcPacking);
1097 for (i = 0; i < srcWidth; i++)
1098 dst[i] <<= 8;
1099 dstRow += dstRowStride;
1100 }
1101 }
1102 }
1103 return GL_TRUE;
1104 }
1105
1106
1107 /**
1108 * Store a 16-bit integer depth component texture image.
1109 */
1110 static GLboolean
1111 _mesa_texstore_z16(TEXSTORE_PARAMS)
1112 {
1113 const GLuint depthScale = 0xffff;
1114 (void) dims;
1115 ASSERT(dstFormat == MESA_FORMAT_Z16);
1116 ASSERT(_mesa_get_format_bytes(dstFormat) == sizeof(GLushort));
1117
1118 {
1119 /* general path */
1120 GLint img, row;
1121 for (img = 0; img < srcDepth; img++) {
1122 GLubyte *dstRow = dstSlices[img];
1123 for (row = 0; row < srcHeight; row++) {
1124 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1125 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1126 GLushort *dst16 = (GLushort *) dstRow;
1127 _mesa_unpack_depth_span(ctx, srcWidth,
1128 GL_UNSIGNED_SHORT, dst16, depthScale,
1129 srcType, src, srcPacking);
1130 dstRow += dstRowStride;
1131 }
1132 }
1133 }
1134 return GL_TRUE;
1135 }
1136
1137
1138 /**
1139 * Store an rgb565 or rgb565_rev texture image.
1140 */
1141 static GLboolean
1142 _mesa_texstore_rgb565(TEXSTORE_PARAMS)
1143 {
1144 ASSERT(dstFormat == MESA_FORMAT_RGB565 ||
1145 dstFormat == MESA_FORMAT_RGB565_REV);
1146 ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
1147
1148 if (!ctx->_ImageTransferState &&
1149 !srcPacking->SwapBytes &&
1150 baseInternalFormat == GL_RGB &&
1151 srcFormat == GL_RGB &&
1152 srcType == GL_UNSIGNED_BYTE &&
1153 dims == 2) {
1154 /* do optimized tex store */
1155 const GLint srcRowStride =
1156 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1157 const GLubyte *src = (const GLubyte *)
1158 _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight,
1159 srcFormat, srcType, 0, 0, 0);
1160 GLubyte *dst = dstSlices[0];
1161 GLint row, col;
1162 for (row = 0; row < srcHeight; row++) {
1163 const GLubyte *srcUB = (const GLubyte *) src;
1164 GLushort *dstUS = (GLushort *) dst;
1165 /* check for byteswapped format */
1166 if (dstFormat == MESA_FORMAT_RGB565) {
1167 for (col = 0; col < srcWidth; col++) {
1168 dstUS[col] = PACK_COLOR_565( srcUB[0], srcUB[1], srcUB[2] );
1169 srcUB += 3;
1170 }
1171 }
1172 else {
1173 for (col = 0; col < srcWidth; col++) {
1174 dstUS[col] = PACK_COLOR_565_REV( srcUB[0], srcUB[1], srcUB[2] );
1175 srcUB += 3;
1176 }
1177 }
1178 dst += dstRowStride;
1179 src += srcRowStride;
1180 }
1181 }
1182 else {
1183 return store_ubyte_texture(ctx, dims, baseInternalFormat,
1184 dstFormat, dstRowStride, dstSlices,
1185 srcWidth, srcHeight, srcDepth,
1186 srcFormat, srcType, srcAddr, srcPacking);
1187 }
1188 return GL_TRUE;
1189 }
1190
1191
1192 /**
1193 * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
1194 */
1195 static GLboolean
1196 _mesa_texstore_rgba8888(TEXSTORE_PARAMS)
1197 {
1198 const GLboolean littleEndian = _mesa_little_endian();
1199
1200 ASSERT(dstFormat == MESA_FORMAT_RGBA8888 ||
1201 dstFormat == MESA_FORMAT_RGBA8888_REV ||
1202 dstFormat == MESA_FORMAT_RGBX8888 ||
1203 dstFormat == MESA_FORMAT_RGBX8888_REV);
1204 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
1205
1206 if (!ctx->_ImageTransferState &&
1207 (srcType == GL_UNSIGNED_BYTE ||
1208 srcType == GL_UNSIGNED_INT_8_8_8_8 ||
1209 srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
1210 can_swizzle(baseInternalFormat) &&
1211 can_swizzle(srcFormat)) {
1212
1213 GLubyte dstmap[4];
1214
1215 /* dstmap - how to swizzle from RGBA to dst format:
1216 */
1217 if ((littleEndian && (dstFormat == MESA_FORMAT_RGBA8888 ||
1218 dstFormat == MESA_FORMAT_RGBX8888)) ||
1219 (!littleEndian && (dstFormat == MESA_FORMAT_RGBA8888_REV ||
1220 dstFormat == MESA_FORMAT_RGBX8888_REV))) {
1221 dstmap[3] = 0;
1222 dstmap[2] = 1;
1223 dstmap[1] = 2;
1224 dstmap[0] = 3;
1225 }
1226 else {
1227 dstmap[3] = 3;
1228 dstmap[2] = 2;
1229 dstmap[1] = 1;
1230 dstmap[0] = 0;
1231 }
1232
1233 _mesa_swizzle_ubyte_image(ctx, dims,
1234 srcFormat,
1235 srcType,
1236 baseInternalFormat,
1237 dstmap, 4,
1238 dstRowStride, dstSlices,
1239 srcWidth, srcHeight, srcDepth, srcAddr,
1240 srcPacking);
1241 }
1242 else {
1243 return store_ubyte_texture(ctx, dims, baseInternalFormat,
1244 dstFormat, dstRowStride, dstSlices,
1245 srcWidth, srcHeight, srcDepth,
1246 srcFormat, srcType, srcAddr, srcPacking);
1247 }
1248 return GL_TRUE;
1249 }
1250
1251
1252 static GLboolean
1253 _mesa_texstore_argb8888(TEXSTORE_PARAMS)
1254 {
1255 const GLboolean littleEndian = _mesa_little_endian();
1256
1257 ASSERT(dstFormat == MESA_FORMAT_ARGB8888 ||
1258 dstFormat == MESA_FORMAT_ARGB8888_REV ||
1259 dstFormat == MESA_FORMAT_XRGB8888 ||
1260 dstFormat == MESA_FORMAT_XRGB8888_REV );
1261 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
1262
1263 if (!ctx->_ImageTransferState &&
1264 !srcPacking->SwapBytes &&
1265 (dstFormat == MESA_FORMAT_ARGB8888 ||
1266 dstFormat == MESA_FORMAT_XRGB8888) &&
1267 srcFormat == GL_RGB &&
1268 (baseInternalFormat == GL_RGBA ||
1269 baseInternalFormat == GL_RGB) &&
1270 srcType == GL_UNSIGNED_BYTE) {
1271 int img, row, col;
1272 for (img = 0; img < srcDepth; img++) {
1273 const GLint srcRowStride =
1274 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1275 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1276 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1277 GLubyte *dstRow = dstSlices[img];
1278 for (row = 0; row < srcHeight; row++) {
1279 GLuint *d4 = (GLuint *) dstRow;
1280 for (col = 0; col < srcWidth; col++) {
1281 d4[col] = PACK_COLOR_8888(0xff,
1282 srcRow[col * 3 + RCOMP],
1283 srcRow[col * 3 + GCOMP],
1284 srcRow[col * 3 + BCOMP]);
1285 }
1286 dstRow += dstRowStride;
1287 srcRow += srcRowStride;
1288 }
1289 }
1290 }
1291 else if (!ctx->_ImageTransferState &&
1292 !srcPacking->SwapBytes &&
1293 dstFormat == MESA_FORMAT_ARGB8888 &&
1294 srcFormat == GL_LUMINANCE_ALPHA &&
1295 baseInternalFormat == GL_RGBA &&
1296 srcType == GL_UNSIGNED_BYTE) {
1297 /* special case of storing LA -> ARGB8888 */
1298 int img, row, col;
1299 const GLint srcRowStride =
1300 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1301 for (img = 0; img < srcDepth; img++) {
1302 const GLubyte *srcRow = (const GLubyte *)
1303 _mesa_image_address(dims, srcPacking, srcAddr, srcWidth,
1304 srcHeight, srcFormat, srcType, img, 0, 0);
1305 GLubyte *dstRow = dstSlices[img];
1306 for (row = 0; row < srcHeight; row++) {
1307 GLuint *d4 = (GLuint *) dstRow;
1308 for (col = 0; col < srcWidth; col++) {
1309 GLubyte l = srcRow[col * 2 + 0], a = srcRow[col * 2 + 1];
1310 d4[col] = PACK_COLOR_8888(a, l, l, l);
1311 }
1312 dstRow += dstRowStride;
1313 srcRow += srcRowStride;
1314 }
1315 }
1316 }
1317 else if (!ctx->_ImageTransferState &&
1318 !srcPacking->SwapBytes &&
1319 dstFormat == MESA_FORMAT_ARGB8888 &&
1320 srcFormat == GL_RGBA &&
1321 baseInternalFormat == GL_RGBA &&
1322 srcType == GL_UNSIGNED_BYTE) {
1323 /* same as above case, but src data has alpha too */
1324 GLint img, row, col;
1325 /* For some reason, streaming copies to write-combined regions
1326 * are extremely sensitive to the characteristics of how the
1327 * source data is retrieved. By reordering the source reads to
1328 * be in-order, the speed of this operation increases by half.
1329 * Strangely the same isn't required for the RGB path, above.
1330 */
1331 for (img = 0; img < srcDepth; img++) {
1332 const GLint srcRowStride =
1333 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1334 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1335 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1336 GLubyte *dstRow = dstSlices[img];
1337 for (row = 0; row < srcHeight; row++) {
1338 GLuint *d4 = (GLuint *) dstRow;
1339 for (col = 0; col < srcWidth; col++) {
1340 d4[col] = PACK_COLOR_8888(srcRow[col * 4 + ACOMP],
1341 srcRow[col * 4 + RCOMP],
1342 srcRow[col * 4 + GCOMP],
1343 srcRow[col * 4 + BCOMP]);
1344 }
1345 dstRow += dstRowStride;
1346 srcRow += srcRowStride;
1347 }
1348 }
1349 }
1350 else if (!ctx->_ImageTransferState &&
1351 (srcType == GL_UNSIGNED_BYTE ||
1352 srcType == GL_UNSIGNED_INT_8_8_8_8 ||
1353 srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
1354 can_swizzle(baseInternalFormat) &&
1355 can_swizzle(srcFormat)) {
1356
1357 GLubyte dstmap[4];
1358
1359 /* dstmap - how to swizzle from RGBA to dst format:
1360 */
1361 if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
1362 (littleEndian && dstFormat == MESA_FORMAT_XRGB8888) ||
1363 (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
1364 (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV)) {
1365 dstmap[3] = 3; /* alpha */
1366 dstmap[2] = 0; /* red */
1367 dstmap[1] = 1; /* green */
1368 dstmap[0] = 2; /* blue */
1369 }
1370 else {
1371 assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
1372 (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
1373 (littleEndian && dstFormat == MESA_FORMAT_XRGB8888_REV) ||
1374 (!littleEndian && dstFormat == MESA_FORMAT_XRGB8888));
1375 dstmap[3] = 2;
1376 dstmap[2] = 1;
1377 dstmap[1] = 0;
1378 dstmap[0] = 3;
1379 }
1380
1381 _mesa_swizzle_ubyte_image(ctx, dims,
1382 srcFormat,
1383 srcType,
1384 baseInternalFormat,
1385 dstmap, 4,
1386 dstRowStride,
1387 dstSlices,
1388 srcWidth, srcHeight, srcDepth, srcAddr,
1389 srcPacking);
1390 }
1391 else {
1392 return store_ubyte_texture(ctx, dims, baseInternalFormat,
1393 dstFormat, dstRowStride, dstSlices,
1394 srcWidth, srcHeight, srcDepth,
1395 srcFormat, srcType, srcAddr, srcPacking);
1396 }
1397 return GL_TRUE;
1398 }
1399
1400
1401 static GLboolean
1402 _mesa_texstore_rgb888(TEXSTORE_PARAMS)
1403 {
1404 ASSERT(dstFormat == MESA_FORMAT_RGB888);
1405 ASSERT(_mesa_get_format_bytes(dstFormat) == 3);
1406
1407 if (!ctx->_ImageTransferState &&
1408 !srcPacking->SwapBytes &&
1409 srcFormat == GL_RGBA &&
1410 srcType == GL_UNSIGNED_BYTE) {
1411 /* extract RGB from RGBA */
1412 GLint img, row, col;
1413 for (img = 0; img < srcDepth; img++) {
1414 const GLint srcRowStride =
1415 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1416 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1417 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1418 GLubyte *dstRow = dstSlices[img];
1419 for (row = 0; row < srcHeight; row++) {
1420 for (col = 0; col < srcWidth; col++) {
1421 dstRow[col * 3 + 0] = srcRow[col * 4 + BCOMP];
1422 dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
1423 dstRow[col * 3 + 2] = srcRow[col * 4 + RCOMP];
1424 }
1425 dstRow += dstRowStride;
1426 srcRow += srcRowStride;
1427 }
1428 }
1429 }
1430 else if (!ctx->_ImageTransferState &&
1431 srcType == GL_UNSIGNED_BYTE &&
1432 can_swizzle(baseInternalFormat) &&
1433 can_swizzle(srcFormat)) {
1434
1435 GLubyte dstmap[4];
1436
1437 /* dstmap - how to swizzle from RGBA to dst format:
1438 */
1439 dstmap[0] = 2;
1440 dstmap[1] = 1;
1441 dstmap[2] = 0;
1442 dstmap[3] = ONE; /* ? */
1443
1444 _mesa_swizzle_ubyte_image(ctx, dims,
1445 srcFormat,
1446 srcType,
1447 baseInternalFormat,
1448 dstmap, 3,
1449 dstRowStride, dstSlices,
1450 srcWidth, srcHeight, srcDepth, srcAddr,
1451 srcPacking);
1452 }
1453 else {
1454 return store_ubyte_texture(ctx, dims, baseInternalFormat,
1455 dstFormat, dstRowStride, dstSlices,
1456 srcWidth, srcHeight, srcDepth,
1457 srcFormat, srcType, srcAddr, srcPacking);
1458 }
1459 return GL_TRUE;
1460 }
1461
1462
1463 static GLboolean
1464 _mesa_texstore_bgr888(TEXSTORE_PARAMS)
1465 {
1466 ASSERT(dstFormat == MESA_FORMAT_BGR888);
1467 ASSERT(_mesa_get_format_bytes(dstFormat) == 3);
1468
1469 if (!ctx->_ImageTransferState &&
1470 !srcPacking->SwapBytes &&
1471 srcFormat == GL_RGBA &&
1472 srcType == GL_UNSIGNED_BYTE) {
1473 /* extract BGR from RGBA */
1474 int img, row, col;
1475 for (img = 0; img < srcDepth; img++) {
1476 const GLint srcRowStride =
1477 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1478 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1479 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1480 GLubyte *dstRow = dstSlices[img];
1481 for (row = 0; row < srcHeight; row++) {
1482 for (col = 0; col < srcWidth; col++) {
1483 dstRow[col * 3 + 0] = srcRow[col * 4 + RCOMP];
1484 dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
1485 dstRow[col * 3 + 2] = srcRow[col * 4 + BCOMP];
1486 }
1487 dstRow += dstRowStride;
1488 srcRow += srcRowStride;
1489 }
1490 }
1491 }
1492 else if (!ctx->_ImageTransferState &&
1493 srcType == GL_UNSIGNED_BYTE &&
1494 can_swizzle(baseInternalFormat) &&
1495 can_swizzle(srcFormat)) {
1496
1497 GLubyte dstmap[4];
1498
1499 /* dstmap - how to swizzle from RGBA to dst format:
1500 */
1501 dstmap[0] = 0;
1502 dstmap[1] = 1;
1503 dstmap[2] = 2;
1504 dstmap[3] = ONE; /* ? */
1505
1506 _mesa_swizzle_ubyte_image(ctx, dims,
1507 srcFormat,
1508 srcType,
1509 baseInternalFormat,
1510 dstmap, 3,
1511 dstRowStride, dstSlices,
1512 srcWidth, srcHeight, srcDepth, srcAddr,
1513 srcPacking);
1514 }
1515 else {
1516 return store_ubyte_texture(ctx, dims, baseInternalFormat,
1517 dstFormat, dstRowStride, dstSlices,
1518 srcWidth, srcHeight, srcDepth,
1519 srcFormat, srcType, srcAddr, srcPacking);
1520 }
1521 return GL_TRUE;
1522 }
1523
1524
1525 static GLboolean
1526 _mesa_texstore_argb2101010(TEXSTORE_PARAMS)
1527 {
1528 ASSERT(dstFormat == MESA_FORMAT_ARGB2101010 ||
1529 dstFormat == MESA_FORMAT_XRGB2101010_UNORM);
1530 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
1531
1532 {
1533 /* general path */
1534 /* Hardcode GL_RGBA as the base format, which forces alpha to 1.0
1535 * if the internal format is RGB. */
1536 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
1537 baseInternalFormat,
1538 GL_RGBA,
1539 srcWidth, srcHeight, srcDepth,
1540 srcFormat, srcType, srcAddr,
1541 srcPacking,
1542 ctx->_ImageTransferState);
1543 const GLfloat *src = tempImage;
1544 GLint img, row, col;
1545 if (!tempImage)
1546 return GL_FALSE;
1547 for (img = 0; img < srcDepth; img++) {
1548 GLubyte *dstRow = dstSlices[img];
1549 if (baseInternalFormat == GL_RGBA || baseInternalFormat == GL_RGB) {
1550 for (row = 0; row < srcHeight; row++) {
1551 GLuint *dstUI = (GLuint *) dstRow;
1552 for (col = 0; col < srcWidth; col++) {
1553 GLushort a,r,g,b;
1554
1555 UNCLAMPED_FLOAT_TO_USHORT(a, src[ACOMP]);
1556 UNCLAMPED_FLOAT_TO_USHORT(r, src[RCOMP]);
1557 UNCLAMPED_FLOAT_TO_USHORT(g, src[GCOMP]);
1558 UNCLAMPED_FLOAT_TO_USHORT(b, src[BCOMP]);
1559 dstUI[col] = PACK_COLOR_2101010_US(a, r, g, b);
1560 src += 4;
1561 }
1562 dstRow += dstRowStride;
1563 }
1564 } else {
1565 ASSERT(0);
1566 }
1567 }
1568 free((void *) tempImage);
1569 }
1570 return GL_TRUE;
1571 }
1572
1573
1574 /**
1575 * Do texstore for 2-channel, 4-bit/channel, unsigned normalized formats.
1576 */
1577 static GLboolean
1578 _mesa_texstore_unorm44(TEXSTORE_PARAMS)
1579 {
1580 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1581
1582 ASSERT(dstFormat == MESA_FORMAT_AL44);
1583 ASSERT(_mesa_get_format_bytes(dstFormat) == 1);
1584
1585 {
1586 /* general path */
1587 const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
1588 baseInternalFormat,
1589 baseFormat,
1590 srcWidth, srcHeight, srcDepth,
1591 srcFormat, srcType, srcAddr,
1592 srcPacking);
1593 const GLubyte *src = tempImage;
1594 GLint img, row, col;
1595 if (!tempImage)
1596 return GL_FALSE;
1597 for (img = 0; img < srcDepth; img++) {
1598 GLubyte *dstRow = dstSlices[img];
1599 for (row = 0; row < srcHeight; row++) {
1600 GLubyte *dstUS = (GLubyte *) dstRow;
1601 for (col = 0; col < srcWidth; col++) {
1602 /* src[0] is luminance, src[1] is alpha */
1603 dstUS[col] = PACK_COLOR_44( src[1],
1604 src[0] );
1605 src += 2;
1606 }
1607 dstRow += dstRowStride;
1608 }
1609 }
1610 free((void *) tempImage);
1611 }
1612 return GL_TRUE;
1613 }
1614
1615
1616 /**
1617 * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats.
1618 */
1619 static GLboolean
1620 _mesa_texstore_unorm88(TEXSTORE_PARAMS)
1621 {
1622 const GLboolean littleEndian = _mesa_little_endian();
1623 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1624
1625 ASSERT(dstFormat == MESA_FORMAT_AL88 ||
1626 dstFormat == MESA_FORMAT_AL88_REV ||
1627 dstFormat == MESA_FORMAT_GR88 ||
1628 dstFormat == MESA_FORMAT_RG88);
1629 ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
1630
1631 if (!ctx->_ImageTransferState &&
1632 littleEndian &&
1633 srcType == GL_UNSIGNED_BYTE &&
1634 can_swizzle(baseInternalFormat) &&
1635 can_swizzle(srcFormat)) {
1636 GLubyte dstmap[4];
1637
1638 /* dstmap - how to swizzle from RGBA to dst format:
1639 */
1640 if (dstFormat == MESA_FORMAT_AL88 || dstFormat == MESA_FORMAT_AL88_REV) {
1641 if ((littleEndian && dstFormat == MESA_FORMAT_AL88) ||
1642 (!littleEndian && dstFormat == MESA_FORMAT_AL88_REV)) {
1643 dstmap[0] = 0;
1644 dstmap[1] = 3;
1645 }
1646 else {
1647 dstmap[0] = 3;
1648 dstmap[1] = 0;
1649 }
1650 }
1651 else {
1652 if ((littleEndian && dstFormat == MESA_FORMAT_GR88) ||
1653 (!littleEndian && dstFormat == MESA_FORMAT_RG88)) {
1654 dstmap[0] = 0;
1655 dstmap[1] = 1;
1656 }
1657 else {
1658 dstmap[0] = 1;
1659 dstmap[1] = 0;
1660 }
1661 }
1662 dstmap[2] = ZERO; /* ? */
1663 dstmap[3] = ONE; /* ? */
1664
1665 _mesa_swizzle_ubyte_image(ctx, dims,
1666 srcFormat,
1667 srcType,
1668 baseInternalFormat,
1669 dstmap, 2,
1670 dstRowStride, dstSlices,
1671 srcWidth, srcHeight, srcDepth, srcAddr,
1672 srcPacking);
1673 }
1674 else {
1675 /* general path */
1676 const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
1677 baseInternalFormat,
1678 baseFormat,
1679 srcWidth, srcHeight, srcDepth,
1680 srcFormat, srcType, srcAddr,
1681 srcPacking);
1682 const GLubyte *src = tempImage;
1683 GLint img, row, col;
1684 if (!tempImage)
1685 return GL_FALSE;
1686 for (img = 0; img < srcDepth; img++) {
1687 GLubyte *dstRow = dstSlices[img];
1688 for (row = 0; row < srcHeight; row++) {
1689 GLushort *dstUS = (GLushort *) dstRow;
1690 if (dstFormat == MESA_FORMAT_AL88 ||
1691 dstFormat == MESA_FORMAT_GR88) {
1692 for (col = 0; col < srcWidth; col++) {
1693 /* src[0] is luminance (or R), src[1] is alpha (or G) */
1694 dstUS[col] = PACK_COLOR_88( src[1],
1695 src[0] );
1696 src += 2;
1697 }
1698 }
1699 else {
1700 for (col = 0; col < srcWidth; col++) {
1701 /* src[0] is luminance (or R), src[1] is alpha (or G) */
1702 dstUS[col] = PACK_COLOR_88_REV( src[1],
1703 src[0] );
1704 src += 2;
1705 }
1706 }
1707 dstRow += dstRowStride;
1708 }
1709 }
1710 free((void *) tempImage);
1711 }
1712 return GL_TRUE;
1713 }
1714
1715
1716 /**
1717 * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats.
1718 */
1719 static GLboolean
1720 _mesa_texstore_unorm1616(TEXSTORE_PARAMS)
1721 {
1722 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1723
1724 ASSERT(dstFormat == MESA_FORMAT_AL1616 ||
1725 dstFormat == MESA_FORMAT_AL1616_REV ||
1726 dstFormat == MESA_FORMAT_GR1616 ||
1727 dstFormat == MESA_FORMAT_RG1616);
1728 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
1729
1730 {
1731 /* general path */
1732 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
1733 baseInternalFormat,
1734 baseFormat,
1735 srcWidth, srcHeight, srcDepth,
1736 srcFormat, srcType, srcAddr,
1737 srcPacking,
1738 ctx->_ImageTransferState);
1739 const GLfloat *src = tempImage;
1740 GLint img, row, col;
1741 if (!tempImage)
1742 return GL_FALSE;
1743 for (img = 0; img < srcDepth; img++) {
1744 GLubyte *dstRow = dstSlices[img];
1745 for (row = 0; row < srcHeight; row++) {
1746 GLuint *dstUI = (GLuint *) dstRow;
1747 if (dstFormat == MESA_FORMAT_AL1616 ||
1748 dstFormat == MESA_FORMAT_GR1616) {
1749 for (col = 0; col < srcWidth; col++) {
1750 GLushort l, a;
1751
1752 UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
1753 UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
1754 dstUI[col] = PACK_COLOR_1616(a, l);
1755 src += 2;
1756 }
1757 }
1758 else {
1759 for (col = 0; col < srcWidth; col++) {
1760 GLushort l, a;
1761
1762 UNCLAMPED_FLOAT_TO_USHORT(l, src[0]);
1763 UNCLAMPED_FLOAT_TO_USHORT(a, src[1]);
1764 dstUI[col] = PACK_COLOR_1616_REV(a, l);
1765 src += 2;
1766 }
1767 }
1768 dstRow += dstRowStride;
1769 }
1770 }
1771 free((void *) tempImage);
1772 }
1773 return GL_TRUE;
1774 }
1775
1776
1777 /* Texstore for R16, A16, L16, I16. */
1778 static GLboolean
1779 _mesa_texstore_unorm16(TEXSTORE_PARAMS)
1780 {
1781 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1782
1783 ASSERT(dstFormat == MESA_FORMAT_R16 ||
1784 dstFormat == MESA_FORMAT_A16 ||
1785 dstFormat == MESA_FORMAT_L16 ||
1786 dstFormat == MESA_FORMAT_I16);
1787 ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
1788
1789 {
1790 /* general path */
1791 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
1792 baseInternalFormat,
1793 baseFormat,
1794 srcWidth, srcHeight, srcDepth,
1795 srcFormat, srcType, srcAddr,
1796 srcPacking,
1797 ctx->_ImageTransferState);
1798 const GLfloat *src = tempImage;
1799 GLint img, row, col;
1800 if (!tempImage)
1801 return GL_FALSE;
1802 for (img = 0; img < srcDepth; img++) {
1803 GLubyte *dstRow = dstSlices[img];
1804 for (row = 0; row < srcHeight; row++) {
1805 GLushort *dstUS = (GLushort *) dstRow;
1806 for (col = 0; col < srcWidth; col++) {
1807 GLushort r;
1808
1809 UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
1810 dstUS[col] = r;
1811 src += 1;
1812 }
1813 dstRow += dstRowStride;
1814 }
1815 }
1816 free((void *) tempImage);
1817 }
1818 return GL_TRUE;
1819 }
1820
1821
1822 static GLboolean
1823 _mesa_texstore_rgba_16(TEXSTORE_PARAMS)
1824 {
1825 ASSERT(dstFormat == MESA_FORMAT_RGBA_16 ||
1826 dstFormat == MESA_FORMAT_XBGR16161616_UNORM);
1827 ASSERT(_mesa_get_format_bytes(dstFormat) == 8);
1828
1829 {
1830 /* general path */
1831 /* Hardcode GL_RGBA as the base format, which forces alpha to 1.0
1832 * if the internal format is RGB. */
1833 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
1834 baseInternalFormat,
1835 GL_RGBA,
1836 srcWidth, srcHeight, srcDepth,
1837 srcFormat, srcType, srcAddr,
1838 srcPacking,
1839 ctx->_ImageTransferState);
1840 const GLfloat *src = tempImage;
1841 GLint img, row, col;
1842
1843 if (!tempImage)
1844 return GL_FALSE;
1845
1846 for (img = 0; img < srcDepth; img++) {
1847 GLubyte *dstRow = dstSlices[img];
1848 for (row = 0; row < srcHeight; row++) {
1849 GLushort *dstUS = (GLushort *) dstRow;
1850 for (col = 0; col < srcWidth; col++) {
1851 GLushort r, g, b, a;
1852
1853 UNCLAMPED_FLOAT_TO_USHORT(r, src[0]);
1854 UNCLAMPED_FLOAT_TO_USHORT(g, src[1]);
1855 UNCLAMPED_FLOAT_TO_USHORT(b, src[2]);
1856 UNCLAMPED_FLOAT_TO_USHORT(a, src[3]);
1857 dstUS[col*4+0] = r;
1858 dstUS[col*4+1] = g;
1859 dstUS[col*4+2] = b;
1860 dstUS[col*4+3] = a;
1861 src += 4;
1862 }
1863 dstRow += dstRowStride;
1864 }
1865 }
1866 free((void *) tempImage);
1867 }
1868 return GL_TRUE;
1869 }
1870
1871
1872 static GLboolean
1873 _mesa_texstore_signed_rgba_16(TEXSTORE_PARAMS)
1874 {
1875 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1876
1877 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGB_16 ||
1878 dstFormat == MESA_FORMAT_SIGNED_RGBA_16 ||
1879 dstFormat == MESA_FORMAT_XBGR16161616_SNORM);
1880
1881 {
1882 /* general path */
1883 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
1884 baseInternalFormat,
1885 baseFormat,
1886 srcWidth, srcHeight, srcDepth,
1887 srcFormat, srcType, srcAddr,
1888 srcPacking,
1889 ctx->_ImageTransferState);
1890 const GLfloat *src = tempImage;
1891 const GLuint comps = _mesa_get_format_bytes(dstFormat) / 2;
1892 GLint img, row, col;
1893
1894 if (!tempImage)
1895 return GL_FALSE;
1896
1897 /* Note: tempImage is always float[4] / RGBA. We convert to 1, 2,
1898 * 3 or 4 components/pixel here.
1899 */
1900 for (img = 0; img < srcDepth; img++) {
1901 GLubyte *dstRow = dstSlices[img];
1902 for (row = 0; row < srcHeight; row++) {
1903 GLshort *dstRowS = (GLshort *) dstRow;
1904 if (dstFormat == MESA_FORMAT_SIGNED_RGBA_16) {
1905 for (col = 0; col < srcWidth; col++) {
1906 GLuint c;
1907 for (c = 0; c < comps; c++) {
1908 GLshort p;
1909 UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 4 + c]);
1910 dstRowS[col * comps + c] = p;
1911 }
1912 }
1913 dstRow += dstRowStride;
1914 src += 4 * srcWidth;
1915 }
1916 else if (dstFormat == MESA_FORMAT_XBGR16161616_SNORM) {
1917 for (col = 0; col < srcWidth; col++) {
1918 GLuint c;
1919
1920 for (c = 0; c < 3; c++) {
1921 GLshort p;
1922 UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 3 + c]);
1923 dstRowS[col * comps + c] = p;
1924 }
1925 dstRowS[col * comps + 3] = 32767;
1926 }
1927 dstRow += dstRowStride;
1928 src += 3 * srcWidth;
1929 }
1930 else {
1931 for (col = 0; col < srcWidth; col++) {
1932 GLuint c;
1933 for (c = 0; c < comps; c++) {
1934 GLshort p;
1935 UNCLAMPED_FLOAT_TO_SHORT(p, src[col * 3 + c]);
1936 dstRowS[col * comps + c] = p;
1937 }
1938 }
1939 dstRow += dstRowStride;
1940 src += 3 * srcWidth;
1941 }
1942 }
1943 }
1944 free((void *) tempImage);
1945 }
1946 return GL_TRUE;
1947 }
1948
1949
1950 /**
1951 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
1952 */
1953 static GLboolean
1954 _mesa_texstore_unorm8(TEXSTORE_PARAMS)
1955 {
1956 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1957
1958 ASSERT(dstFormat == MESA_FORMAT_A8 ||
1959 dstFormat == MESA_FORMAT_L8 ||
1960 dstFormat == MESA_FORMAT_I8 ||
1961 dstFormat == MESA_FORMAT_R8);
1962 ASSERT(_mesa_get_format_bytes(dstFormat) == 1);
1963
1964 if (!ctx->_ImageTransferState &&
1965 srcType == GL_UNSIGNED_BYTE &&
1966 can_swizzle(baseInternalFormat) &&
1967 can_swizzle(srcFormat)) {
1968 GLubyte dstmap[4];
1969
1970 /* dstmap - how to swizzle from RGBA to dst format:
1971 */
1972 if (dstFormat == MESA_FORMAT_A8) {
1973 dstmap[0] = 3;
1974 }
1975 else {
1976 dstmap[0] = 0;
1977 }
1978 dstmap[1] = ZERO; /* ? */
1979 dstmap[2] = ZERO; /* ? */
1980 dstmap[3] = ONE; /* ? */
1981
1982 _mesa_swizzle_ubyte_image(ctx, dims,
1983 srcFormat,
1984 srcType,
1985 baseInternalFormat,
1986 dstmap, 1,
1987 dstRowStride, dstSlices,
1988 srcWidth, srcHeight, srcDepth, srcAddr,
1989 srcPacking);
1990 }
1991 else {
1992 /* general path */
1993 const GLubyte *tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
1994 baseInternalFormat,
1995 baseFormat,
1996 srcWidth, srcHeight, srcDepth,
1997 srcFormat, srcType, srcAddr,
1998 srcPacking);
1999 const GLubyte *src = tempImage;
2000 GLint img, row, col;
2001 if (!tempImage)
2002 return GL_FALSE;
2003 for (img = 0; img < srcDepth; img++) {
2004 GLubyte *dstRow = dstSlices[img];
2005 for (row = 0; row < srcHeight; row++) {
2006 for (col = 0; col < srcWidth; col++) {
2007 dstRow[col] = src[col];
2008 }
2009 dstRow += dstRowStride;
2010 src += srcWidth;
2011 }
2012 }
2013 free((void *) tempImage);
2014 }
2015 return GL_TRUE;
2016 }
2017
2018
2019
2020 /**
2021 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV.
2022 */
2023 static GLboolean
2024 _mesa_texstore_ycbcr(TEXSTORE_PARAMS)
2025 {
2026 const GLboolean littleEndian = _mesa_little_endian();
2027
2028 (void) ctx; (void) dims; (void) baseInternalFormat;
2029
2030 ASSERT((dstFormat == MESA_FORMAT_YCBCR) ||
2031 (dstFormat == MESA_FORMAT_YCBCR_REV));
2032 ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
2033 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
2034 ASSERT(srcFormat == GL_YCBCR_MESA);
2035 ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) ||
2036 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA));
2037 ASSERT(baseInternalFormat == GL_YCBCR_MESA);
2038
2039 /* always just memcpy since no pixel transfer ops apply */
2040 memcpy_texture(ctx, dims,
2041 dstFormat,
2042 dstRowStride, dstSlices,
2043 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2044 srcAddr, srcPacking);
2045
2046 /* Check if we need byte swapping */
2047 /* XXX the logic here _might_ be wrong */
2048 if (srcPacking->SwapBytes ^
2049 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^
2050 (dstFormat == MESA_FORMAT_YCBCR_REV) ^
2051 !littleEndian) {
2052 GLint img, row;
2053 for (img = 0; img < srcDepth; img++) {
2054 GLubyte *dstRow = dstSlices[img];
2055 for (row = 0; row < srcHeight; row++) {
2056 _mesa_swap2((GLushort *) dstRow, srcWidth);
2057 dstRow += dstRowStride;
2058 }
2059 }
2060 }
2061 return GL_TRUE;
2062 }
2063
2064 static GLboolean
2065 _mesa_texstore_dudv8(TEXSTORE_PARAMS)
2066 {
2067 const GLboolean littleEndian = _mesa_little_endian();
2068 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2069
2070 ASSERT(dstFormat == MESA_FORMAT_DUDV8);
2071 ASSERT(texelBytes == 2);
2072 ASSERT(ctx->Extensions.ATI_envmap_bumpmap);
2073 ASSERT((srcFormat == GL_DU8DV8_ATI) ||
2074 (srcFormat == GL_DUDV_ATI));
2075 ASSERT(baseInternalFormat == GL_DUDV_ATI);
2076
2077 if (srcType == GL_BYTE) {
2078 GLubyte dstmap[4];
2079
2080 /* dstmap - how to swizzle from RGBA to dst format:
2081 */
2082 if (littleEndian) {
2083 dstmap[0] = 0;
2084 dstmap[1] = 3;
2085 }
2086 else {
2087 dstmap[0] = 3;
2088 dstmap[1] = 0;
2089 }
2090 dstmap[2] = ZERO; /* ? */
2091 dstmap[3] = ONE; /* ? */
2092
2093 _mesa_swizzle_ubyte_image(ctx, dims,
2094 GL_LUMINANCE_ALPHA, /* hack */
2095 GL_UNSIGNED_BYTE, /* hack */
2096 GL_LUMINANCE_ALPHA, /* hack */
2097 dstmap, 2,
2098 dstRowStride, dstSlices,
2099 srcWidth, srcHeight, srcDepth, srcAddr,
2100 srcPacking);
2101 }
2102 else {
2103 /* general path - note this is defined for 2d textures only */
2104 const GLint components = _mesa_components_in_format(baseInternalFormat);
2105 const GLint srcStride = _mesa_image_row_stride(srcPacking, srcWidth,
2106 srcFormat, srcType);
2107 GLbyte *tempImage, *dst, *src;
2108 GLint row;
2109
2110 tempImage = malloc(srcWidth * srcHeight * srcDepth
2111 * components * sizeof(GLbyte));
2112 if (!tempImage)
2113 return GL_FALSE;
2114
2115 src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2116 srcWidth, srcHeight,
2117 srcFormat, srcType,
2118 0, 0, 0);
2119
2120 dst = tempImage;
2121 for (row = 0; row < srcHeight; row++) {
2122 _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat,
2123 dst, srcFormat, srcType, src,
2124 srcPacking, 0);
2125 dst += srcWidth * components;
2126 src += srcStride;
2127 }
2128
2129 src = tempImage;
2130 dst = (GLbyte *) dstSlices[0];
2131 for (row = 0; row < srcHeight; row++) {
2132 memcpy(dst, src, srcWidth * texelBytes);
2133 dst += dstRowStride;
2134 src += srcWidth * texelBytes;
2135 }
2136 free((void *) tempImage);
2137 }
2138 return GL_TRUE;
2139 }
2140
2141
2142 /**
2143 * Store a texture in a signed normalized 8-bit format.
2144 */
2145 static GLboolean
2146 _mesa_texstore_snorm8(TEXSTORE_PARAMS)
2147 {
2148 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2149
2150 ASSERT(dstFormat == MESA_FORMAT_SIGNED_A8 ||
2151 dstFormat == MESA_FORMAT_SIGNED_L8 ||
2152 dstFormat == MESA_FORMAT_SIGNED_I8 ||
2153 dstFormat == MESA_FORMAT_SIGNED_R8);
2154 ASSERT(_mesa_get_format_bytes(dstFormat) == 1);
2155
2156 {
2157 /* general path */
2158 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2159 baseInternalFormat,
2160 baseFormat,
2161 srcWidth, srcHeight, srcDepth,
2162 srcFormat, srcType, srcAddr,
2163 srcPacking,
2164 ctx->_ImageTransferState);
2165 const GLfloat *src = tempImage;
2166 GLint img, row, col;
2167 if (!tempImage)
2168 return GL_FALSE;
2169 for (img = 0; img < srcDepth; img++) {
2170 GLbyte *dstRow = (GLbyte *) dstSlices[img];
2171 for (row = 0; row < srcHeight; row++) {
2172 for (col = 0; col < srcWidth; col++) {
2173 dstRow[col] = FLOAT_TO_BYTE_TEX(src[col]);
2174 }
2175 dstRow += dstRowStride;
2176 src += srcWidth;
2177 }
2178 }
2179 free((void *) tempImage);
2180 }
2181 return GL_TRUE;
2182 }
2183
2184
2185 /**
2186 * Store a texture in a signed normalized two-channel 16-bit format.
2187 */
2188 static GLboolean
2189 _mesa_texstore_snorm88(TEXSTORE_PARAMS)
2190 {
2191 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2192
2193 ASSERT(dstFormat == MESA_FORMAT_SIGNED_AL88 ||
2194 dstFormat == MESA_FORMAT_SIGNED_RG88_REV);
2195 ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
2196
2197 {
2198 /* general path */
2199 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2200 baseInternalFormat,
2201 baseFormat,
2202 srcWidth, srcHeight, srcDepth,
2203 srcFormat, srcType, srcAddr,
2204 srcPacking,
2205 ctx->_ImageTransferState);
2206 const GLfloat *src = tempImage;
2207 GLint img, row, col;
2208 if (!tempImage)
2209 return GL_FALSE;
2210 for (img = 0; img < srcDepth; img++) {
2211 GLbyte *dstRow = (GLbyte *) dstSlices[img];
2212 for (row = 0; row < srcHeight; row++) {
2213 GLbyte *dst = dstRow;
2214 for (col = 0; col < srcWidth; col++) {
2215 dst[0] = FLOAT_TO_BYTE_TEX(src[0]);
2216 dst[1] = FLOAT_TO_BYTE_TEX(src[1]);
2217 src += 2;
2218 dst += 2;
2219 }
2220 dstRow += dstRowStride;
2221 }
2222 }
2223 free((void *) tempImage);
2224 }
2225 return GL_TRUE;
2226 }
2227
2228 /* Texstore for signed R16, A16, L16, I16. */
2229 static GLboolean
2230 _mesa_texstore_snorm16(TEXSTORE_PARAMS)
2231 {
2232 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2233
2234 ASSERT(dstFormat == MESA_FORMAT_SIGNED_R16 ||
2235 dstFormat == MESA_FORMAT_SIGNED_A16 ||
2236 dstFormat == MESA_FORMAT_SIGNED_L16 ||
2237 dstFormat == MESA_FORMAT_SIGNED_I16);
2238 ASSERT(_mesa_get_format_bytes(dstFormat) == 2);
2239
2240 {
2241 /* general path */
2242 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2243 baseInternalFormat,
2244 baseFormat,
2245 srcWidth, srcHeight, srcDepth,
2246 srcFormat, srcType, srcAddr,
2247 srcPacking,
2248 ctx->_ImageTransferState);
2249 const GLfloat *src = tempImage;
2250 GLint img, row, col;
2251 if (!tempImage)
2252 return GL_FALSE;
2253 for (img = 0; img < srcDepth; img++) {
2254 GLubyte *dstRow = dstSlices[img];
2255 for (row = 0; row < srcHeight; row++) {
2256 GLshort *dstUS = (GLshort *) dstRow;
2257 for (col = 0; col < srcWidth; col++) {
2258 GLushort r;
2259
2260 UNCLAMPED_FLOAT_TO_SHORT(r, src[0]);
2261 dstUS[col] = r;
2262 src += 1;
2263 }
2264 dstRow += dstRowStride;
2265 }
2266 }
2267 free((void *) tempImage);
2268 }
2269 return GL_TRUE;
2270 }
2271
2272 /**
2273 * Do texstore for 2-channel, 16-bit/channel, signed normalized formats.
2274 */
2275 static GLboolean
2276 _mesa_texstore_snorm1616(TEXSTORE_PARAMS)
2277 {
2278 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2279
2280 ASSERT(dstFormat == MESA_FORMAT_SIGNED_AL1616 ||
2281 dstFormat == MESA_FORMAT_SIGNED_GR1616);
2282 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
2283
2284 {
2285 /* general path */
2286 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2287 baseInternalFormat,
2288 baseFormat,
2289 srcWidth, srcHeight, srcDepth,
2290 srcFormat, srcType, srcAddr,
2291 srcPacking,
2292 ctx->_ImageTransferState);
2293 const GLfloat *src = tempImage;
2294 GLint img, row, col;
2295 if (!tempImage)
2296 return GL_FALSE;
2297 for (img = 0; img < srcDepth; img++) {
2298 GLubyte *dstRow = dstSlices[img];
2299 for (row = 0; row < srcHeight; row++) {
2300 GLshort *dst = (GLshort *) dstRow;
2301 for (col = 0; col < srcWidth; col++) {
2302 GLushort l, a;
2303
2304 UNCLAMPED_FLOAT_TO_SHORT(l, src[0]);
2305 UNCLAMPED_FLOAT_TO_SHORT(a, src[1]);
2306 dst[0] = l;
2307 dst[1] = a;
2308 src += 2;
2309 dst += 2;
2310 }
2311 dstRow += dstRowStride;
2312 }
2313 }
2314 free((void *) tempImage);
2315 }
2316 return GL_TRUE;
2317 }
2318
2319 /**
2320 * Store a texture in MESA_FORMAT_SIGNED_RGBX8888 or
2321 * MESA_FORMAT_XBGR8888_SNORM.
2322 */
2323 static GLboolean
2324 _mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS)
2325 {
2326 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2327
2328 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBX8888 ||
2329 dstFormat == MESA_FORMAT_XBGR8888_SNORM);
2330 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
2331
2332 {
2333 /* general path */
2334 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2335 baseInternalFormat,
2336 baseFormat,
2337 srcWidth, srcHeight, srcDepth,
2338 srcFormat, srcType, srcAddr,
2339 srcPacking,
2340 ctx->_ImageTransferState);
2341 const GLfloat *srcRow = tempImage;
2342 GLint img, row, col;
2343 if (!tempImage)
2344 return GL_FALSE;
2345 for (img = 0; img < srcDepth; img++) {
2346 GLbyte *dstRow = (GLbyte *) dstSlices[img];
2347 for (row = 0; row < srcHeight; row++) {
2348 GLbyte *dst = dstRow;
2349 if (dstFormat == MESA_FORMAT_SIGNED_RGBX8888) {
2350 for (col = 0; col < srcWidth; col++) {
2351 dst[3] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]);
2352 dst[2] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]);
2353 dst[1] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]);
2354 dst[0] = 127;
2355 srcRow += 3;
2356 dst += 4;
2357 }
2358 }
2359 else {
2360 for (col = 0; col < srcWidth; col++) {
2361 dst[0] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]);
2362 dst[1] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]);
2363 dst[2] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]);
2364 dst[3] = 127;
2365 srcRow += 3;
2366 dst += 4;
2367 }
2368 }
2369 dstRow += dstRowStride;
2370 }
2371 }
2372 free((void *) tempImage);
2373 }
2374 return GL_TRUE;
2375 }
2376
2377
2378
2379 /**
2380 * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or
2381 * MESA_FORMAT_SIGNED_RGBA8888_REV
2382 */
2383 static GLboolean
2384 _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
2385 {
2386 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2387
2388 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBA8888 ||
2389 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV);
2390 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
2391
2392 {
2393 /* general path */
2394 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2395 baseInternalFormat,
2396 baseFormat,
2397 srcWidth, srcHeight, srcDepth,
2398 srcFormat, srcType, srcAddr,
2399 srcPacking,
2400 ctx->_ImageTransferState);
2401 const GLfloat *srcRow = tempImage;
2402 GLint img, row, col;
2403 if (!tempImage)
2404 return GL_FALSE;
2405 for (img = 0; img < srcDepth; img++) {
2406 GLbyte *dstRow = (GLbyte *) dstSlices[img];
2407 for (row = 0; row < srcHeight; row++) {
2408 GLbyte *dst = dstRow;
2409 if (dstFormat == MESA_FORMAT_SIGNED_RGBA8888) {
2410 for (col = 0; col < srcWidth; col++) {
2411 dst[3] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]);
2412 dst[2] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]);
2413 dst[1] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]);
2414 dst[0] = FLOAT_TO_BYTE_TEX(srcRow[ACOMP]);
2415 srcRow += 4;
2416 dst += 4;
2417 }
2418 }
2419 else {
2420 for (col = 0; col < srcWidth; col++) {
2421 dst[0] = FLOAT_TO_BYTE_TEX(srcRow[RCOMP]);
2422 dst[1] = FLOAT_TO_BYTE_TEX(srcRow[GCOMP]);
2423 dst[2] = FLOAT_TO_BYTE_TEX(srcRow[BCOMP]);
2424 dst[3] = FLOAT_TO_BYTE_TEX(srcRow[ACOMP]);
2425 srcRow += 4;
2426 dst += 4;
2427 }
2428 }
2429 dstRow += dstRowStride;
2430 }
2431 }
2432 free((void *) tempImage);
2433 }
2434 return GL_TRUE;
2435 }
2436
2437
2438 /**
2439 * Store a combined depth/stencil texture image.
2440 */
2441 static GLboolean
2442 _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
2443 {
2444 const GLuint depthScale = 0xffffff;
2445 const GLint srcRowStride
2446 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
2447 GLint img, row;
2448
2449 ASSERT(dstFormat == MESA_FORMAT_Z24_S8);
2450 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT ||
2451 srcFormat == GL_DEPTH_COMPONENT ||
2452 srcFormat == GL_STENCIL_INDEX);
2453 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
2454
2455 if (srcFormat == GL_DEPTH_COMPONENT ||
2456 srcFormat == GL_STENCIL_INDEX) {
2457 GLuint *depth = malloc(srcWidth * sizeof(GLuint));
2458 GLubyte *stencil = malloc(srcWidth * sizeof(GLubyte));
2459
2460 if (!depth || !stencil) {
2461 free(depth);
2462 free(stencil);
2463 return GL_FALSE;
2464 }
2465
2466 /* In case we only upload depth we need to preserve the stencil */
2467 for (img = 0; img < srcDepth; img++) {
2468 GLuint *dstRow = (GLuint *) dstSlices[img];
2469 const GLubyte *src
2470 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2471 srcWidth, srcHeight,
2472 srcFormat, srcType,
2473 img, 0, 0);
2474 for (row = 0; row < srcHeight; row++) {
2475 GLint i;
2476 GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE;
2477
2478 if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
2479 keepstencil = GL_TRUE;
2480 }
2481 else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
2482 keepdepth = GL_TRUE;
2483 }
2484
2485 if (keepdepth == GL_FALSE)
2486 /* the 24 depth bits will be in the low position: */
2487 _mesa_unpack_depth_span(ctx, srcWidth,
2488 GL_UNSIGNED_INT, /* dst type */
2489 keepstencil ? depth : dstRow, /* dst addr */
2490 depthScale,
2491 srcType, src, srcPacking);
2492
2493 if (keepstencil == GL_FALSE)
2494 /* get the 8-bit stencil values */
2495 _mesa_unpack_stencil_span(ctx, srcWidth,
2496 GL_UNSIGNED_BYTE, /* dst type */
2497 stencil, /* dst addr */
2498 srcType, src, srcPacking,
2499 ctx->_ImageTransferState);
2500
2501 for (i = 0; i < srcWidth; i++) {
2502 if (keepstencil)
2503 dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF);
2504 else
2505 dstRow[i] = (dstRow[i] & 0xFFFFFF00) | (stencil[i] & 0xFF);
2506 }
2507
2508 src += srcRowStride;
2509 dstRow += dstRowStride / sizeof(GLuint);
2510 }
2511 }
2512
2513 free(depth);
2514 free(stencil);
2515 }
2516 return GL_TRUE;
2517 }
2518
2519
2520 /**
2521 * Store a combined depth/stencil texture image.
2522 */
2523 static GLboolean
2524 _mesa_texstore_s8_z24(TEXSTORE_PARAMS)
2525 {
2526 const GLuint depthScale = 0xffffff;
2527 const GLint srcRowStride
2528 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
2529 GLint img, row;
2530 GLuint *depth;
2531 GLubyte *stencil;
2532
2533 ASSERT(dstFormat == MESA_FORMAT_S8_Z24);
2534 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT ||
2535 srcFormat == GL_DEPTH_COMPONENT ||
2536 srcFormat == GL_STENCIL_INDEX);
2537 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT ||
2538 srcType == GL_UNSIGNED_INT_24_8_EXT);
2539
2540 depth = malloc(srcWidth * sizeof(GLuint));
2541 stencil = malloc(srcWidth * sizeof(GLubyte));
2542
2543 if (!depth || !stencil) {
2544 free(depth);
2545 free(stencil);
2546 return GL_FALSE;
2547 }
2548
2549 for (img = 0; img < srcDepth; img++) {
2550 GLuint *dstRow = (GLuint *) dstSlices[img];
2551 const GLubyte *src
2552 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2553 srcWidth, srcHeight,
2554 srcFormat, srcType,
2555 img, 0, 0);
2556 for (row = 0; row < srcHeight; row++) {
2557 GLint i;
2558 GLboolean keepdepth = GL_FALSE, keepstencil = GL_FALSE;
2559
2560 if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */
2561 keepstencil = GL_TRUE;
2562 }
2563 else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */
2564 keepdepth = GL_TRUE;
2565 }
2566
2567 if (keepdepth == GL_FALSE)
2568 /* the 24 depth bits will be in the low position: */
2569 _mesa_unpack_depth_span(ctx, srcWidth,
2570 GL_UNSIGNED_INT, /* dst type */
2571 keepstencil ? depth : dstRow, /* dst addr */
2572 depthScale,
2573 srcType, src, srcPacking);
2574
2575 if (keepstencil == GL_FALSE)
2576 /* get the 8-bit stencil values */
2577 _mesa_unpack_stencil_span(ctx, srcWidth,
2578 GL_UNSIGNED_BYTE, /* dst type */
2579 stencil, /* dst addr */
2580 srcType, src, srcPacking,
2581 ctx->_ImageTransferState);
2582
2583 /* merge stencil values into depth values */
2584 for (i = 0; i < srcWidth; i++) {
2585 if (keepstencil)
2586 dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000);
2587 else
2588 dstRow[i] = (dstRow[i] & 0xFFFFFF) | (stencil[i] << 24);
2589
2590 }
2591 src += srcRowStride;
2592 dstRow += dstRowStride / sizeof(GLuint);
2593 }
2594 }
2595
2596 free(depth);
2597 free(stencil);
2598
2599 return GL_TRUE;
2600 }
2601
2602
2603 /**
2604 * Store simple 8-bit/value stencil texture data.
2605 */
2606 static GLboolean
2607 _mesa_texstore_s8(TEXSTORE_PARAMS)
2608 {
2609 ASSERT(dstFormat == MESA_FORMAT_S8);
2610 ASSERT(srcFormat == GL_STENCIL_INDEX);
2611
2612 {
2613 const GLint srcRowStride
2614 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
2615 GLint img, row;
2616 GLubyte *stencil = malloc(srcWidth * sizeof(GLubyte));
2617
2618 if (!stencil)
2619 return GL_FALSE;
2620
2621 for (img = 0; img < srcDepth; img++) {
2622 GLubyte *dstRow = dstSlices[img];
2623 const GLubyte *src
2624 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2625 srcWidth, srcHeight,
2626 srcFormat, srcType,
2627 img, 0, 0);
2628 for (row = 0; row < srcHeight; row++) {
2629 GLint i;
2630
2631 /* get the 8-bit stencil values */
2632 _mesa_unpack_stencil_span(ctx, srcWidth,
2633 GL_UNSIGNED_BYTE, /* dst type */
2634 stencil, /* dst addr */
2635 srcType, src, srcPacking,
2636 ctx->_ImageTransferState);
2637 /* merge stencil values into depth values */
2638 for (i = 0; i < srcWidth; i++)
2639 dstRow[i] = stencil[i];
2640
2641 src += srcRowStride;
2642 dstRow += dstRowStride / sizeof(GLubyte);
2643 }
2644 }
2645
2646 free(stencil);
2647 }
2648
2649 return GL_TRUE;
2650 }
2651
2652
2653 /**
2654 * Store an image in any of the formats:
2655 * _mesa_texformat_rgba_float32
2656 * _mesa_texformat_rgb_float32
2657 * _mesa_texformat_alpha_float32
2658 * _mesa_texformat_luminance_float32
2659 * _mesa_texformat_luminance_alpha_float32
2660 * _mesa_texformat_intensity_float32
2661 */
2662 static GLboolean
2663 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS)
2664 {
2665 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2666 GLint components = _mesa_components_in_format(baseFormat);
2667
2668 /* this forces alpha to 1 in _mesa_make_temp_float_image */
2669 if (dstFormat == MESA_FORMAT_XBGR32323232_FLOAT) {
2670 baseFormat = GL_RGBA;
2671 components = 4;
2672 }
2673
2674 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT32 ||
2675 dstFormat == MESA_FORMAT_RGB_FLOAT32 ||
2676 dstFormat == MESA_FORMAT_ALPHA_FLOAT32 ||
2677 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT32 ||
2678 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 ||
2679 dstFormat == MESA_FORMAT_INTENSITY_FLOAT32 ||
2680 dstFormat == MESA_FORMAT_R_FLOAT32 ||
2681 dstFormat == MESA_FORMAT_RG_FLOAT32 ||
2682 dstFormat == MESA_FORMAT_XBGR32323232_FLOAT);
2683 ASSERT(baseInternalFormat == GL_RGBA ||
2684 baseInternalFormat == GL_RGB ||
2685 baseInternalFormat == GL_ALPHA ||
2686 baseInternalFormat == GL_LUMINANCE ||
2687 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2688 baseInternalFormat == GL_INTENSITY ||
2689 baseInternalFormat == GL_RED ||
2690 baseInternalFormat == GL_RG);
2691 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLfloat));
2692
2693 {
2694 /* general path */
2695 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2696 baseInternalFormat,
2697 baseFormat,
2698 srcWidth, srcHeight, srcDepth,
2699 srcFormat, srcType, srcAddr,
2700 srcPacking,
2701 ctx->_ImageTransferState);
2702 const GLfloat *srcRow = tempImage;
2703 GLint bytesPerRow;
2704 GLint img, row;
2705 if (!tempImage)
2706 return GL_FALSE;
2707 bytesPerRow = srcWidth * components * sizeof(GLfloat);
2708 for (img = 0; img < srcDepth; img++) {
2709 GLubyte *dstRow = dstSlices[img];
2710 for (row = 0; row < srcHeight; row++) {
2711 memcpy(dstRow, srcRow, bytesPerRow);
2712 dstRow += dstRowStride;
2713 srcRow += srcWidth * components;
2714 }
2715 }
2716
2717 free((void *) tempImage);
2718 }
2719 return GL_TRUE;
2720 }
2721
2722
2723
2724 /**
2725 * As above, but store 16-bit floats.
2726 */
2727 static GLboolean
2728 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
2729 {
2730 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2731 GLint components = _mesa_components_in_format(baseFormat);
2732
2733 /* this forces alpha to 1 in _mesa_make_temp_float_image */
2734 if (dstFormat == MESA_FORMAT_XBGR16161616_FLOAT) {
2735 baseFormat = GL_RGBA;
2736 components = 4;
2737 }
2738
2739 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT16 ||
2740 dstFormat == MESA_FORMAT_RGB_FLOAT16 ||
2741 dstFormat == MESA_FORMAT_ALPHA_FLOAT16 ||
2742 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT16 ||
2743 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 ||
2744 dstFormat == MESA_FORMAT_INTENSITY_FLOAT16 ||
2745 dstFormat == MESA_FORMAT_R_FLOAT16 ||
2746 dstFormat == MESA_FORMAT_RG_FLOAT16 ||
2747 dstFormat == MESA_FORMAT_XBGR16161616_FLOAT);
2748 ASSERT(baseInternalFormat == GL_RGBA ||
2749 baseInternalFormat == GL_RGB ||
2750 baseInternalFormat == GL_ALPHA ||
2751 baseInternalFormat == GL_LUMINANCE ||
2752 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2753 baseInternalFormat == GL_INTENSITY ||
2754 baseInternalFormat == GL_RED ||
2755 baseInternalFormat == GL_RG);
2756 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLhalfARB));
2757
2758 {
2759 /* general path */
2760 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
2761 baseInternalFormat,
2762 baseFormat,
2763 srcWidth, srcHeight, srcDepth,
2764 srcFormat, srcType, srcAddr,
2765 srcPacking,
2766 ctx->_ImageTransferState);
2767 const GLfloat *src = tempImage;
2768 GLint img, row;
2769 if (!tempImage)
2770 return GL_FALSE;
2771 for (img = 0; img < srcDepth; img++) {
2772 GLubyte *dstRow = dstSlices[img];
2773 for (row = 0; row < srcHeight; row++) {
2774 GLhalfARB *dstTexel = (GLhalfARB *) dstRow;
2775 GLint i;
2776 for (i = 0; i < srcWidth * components; i++) {
2777 dstTexel[i] = _mesa_float_to_half(src[i]);
2778 }
2779 dstRow += dstRowStride;
2780 src += srcWidth * components;
2781 }
2782 }
2783
2784 free((void *) tempImage);
2785 }
2786 return GL_TRUE;
2787 }
2788
2789
2790 /* non-normalized, signed int8 */
2791 static GLboolean
2792 _mesa_texstore_rgba_int8(TEXSTORE_PARAMS)
2793 {
2794 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2795 GLint components = _mesa_components_in_format(baseFormat);
2796
2797 /* this forces alpha to 1 in make_temp_uint_image */
2798 if (dstFormat == MESA_FORMAT_XBGR8888_SINT) {
2799 baseFormat = GL_RGBA;
2800 components = 4;
2801 }
2802
2803 ASSERT(dstFormat == MESA_FORMAT_R_INT8 ||
2804 dstFormat == MESA_FORMAT_RG_INT8 ||
2805 dstFormat == MESA_FORMAT_RGB_INT8 ||
2806 dstFormat == MESA_FORMAT_RGBA_INT8 ||
2807 dstFormat == MESA_FORMAT_ALPHA_INT8 ||
2808 dstFormat == MESA_FORMAT_INTENSITY_INT8 ||
2809 dstFormat == MESA_FORMAT_LUMINANCE_INT8 ||
2810 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_INT8 ||
2811 dstFormat == MESA_FORMAT_XBGR8888_SINT);
2812 ASSERT(baseInternalFormat == GL_RGBA ||
2813 baseInternalFormat == GL_RGB ||
2814 baseInternalFormat == GL_RG ||
2815 baseInternalFormat == GL_RED ||
2816 baseInternalFormat == GL_ALPHA ||
2817 baseInternalFormat == GL_LUMINANCE ||
2818 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2819 baseInternalFormat == GL_INTENSITY);
2820 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLbyte));
2821
2822 {
2823 /* general path */
2824 const GLuint *tempImage = make_temp_uint_image(ctx, dims,
2825 baseInternalFormat,
2826 baseFormat,
2827 srcWidth, srcHeight, srcDepth,
2828 srcFormat, srcType,
2829 srcAddr,
2830 srcPacking);
2831 const GLuint *src = tempImage;
2832 GLint img, row;
2833 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
2834 if (!tempImage)
2835 return GL_FALSE;
2836 for (img = 0; img < srcDepth; img++) {
2837 GLubyte *dstRow = dstSlices[img];
2838 for (row = 0; row < srcHeight; row++) {
2839 GLbyte *dstTexel = (GLbyte *) dstRow;
2840 GLint i;
2841 if (is_unsigned) {
2842 for (i = 0; i < srcWidth * components; i++) {
2843 dstTexel[i] = (GLbyte) MIN2(src[i], 0x7f);
2844 }
2845 } else {
2846 for (i = 0; i < srcWidth * components; i++) {
2847 dstTexel[i] = (GLbyte) CLAMP((GLint) src[i], -0x80, 0x7f);
2848 }
2849 }
2850 dstRow += dstRowStride;
2851 src += srcWidth * components;
2852 }
2853 }
2854
2855 free((void *) tempImage);
2856 }
2857 return GL_TRUE;
2858 }
2859
2860
2861 /* non-normalized, signed int16 */
2862 static GLboolean
2863 _mesa_texstore_rgba_int16(TEXSTORE_PARAMS)
2864 {
2865 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2866 GLint components = _mesa_components_in_format(baseFormat);
2867
2868 /* this forces alpha to 1 in make_temp_uint_image */
2869 if (dstFormat == MESA_FORMAT_XBGR16161616_SINT) {
2870 baseFormat = GL_RGBA;
2871 components = 4;
2872 }
2873
2874 ASSERT(dstFormat == MESA_FORMAT_R_INT16 ||
2875 dstFormat == MESA_FORMAT_RG_INT16 ||
2876 dstFormat == MESA_FORMAT_RGB_INT16 ||
2877 dstFormat == MESA_FORMAT_RGBA_INT16 ||
2878 dstFormat == MESA_FORMAT_ALPHA_INT16 ||
2879 dstFormat == MESA_FORMAT_LUMINANCE_INT16 ||
2880 dstFormat == MESA_FORMAT_INTENSITY_INT16 ||
2881 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_INT16 ||
2882 dstFormat == MESA_FORMAT_XBGR16161616_SINT);
2883 ASSERT(baseInternalFormat == GL_RGBA ||
2884 baseInternalFormat == GL_RGB ||
2885 baseInternalFormat == GL_RG ||
2886 baseInternalFormat == GL_RED ||
2887 baseInternalFormat == GL_ALPHA ||
2888 baseInternalFormat == GL_LUMINANCE ||
2889 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2890 baseInternalFormat == GL_INTENSITY);
2891 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLshort));
2892
2893 {
2894 /* general path */
2895 const GLuint *tempImage = make_temp_uint_image(ctx, dims,
2896 baseInternalFormat,
2897 baseFormat,
2898 srcWidth, srcHeight, srcDepth,
2899 srcFormat, srcType,
2900 srcAddr,
2901 srcPacking);
2902 const GLuint *src = tempImage;
2903 GLint img, row;
2904 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
2905 if (!tempImage)
2906 return GL_FALSE;
2907 for (img = 0; img < srcDepth; img++) {
2908 GLubyte *dstRow = dstSlices[img];
2909 for (row = 0; row < srcHeight; row++) {
2910 GLshort *dstTexel = (GLshort *) dstRow;
2911 GLint i;
2912 if (is_unsigned) {
2913 for (i = 0; i < srcWidth * components; i++) {
2914 dstTexel[i] = (GLshort) MIN2(src[i], 0x7fff);
2915 }
2916 } else {
2917 for (i = 0; i < srcWidth * components; i++) {
2918 dstTexel[i] = (GLshort)CLAMP((GLint) src[i], -0x8000, 0x7fff);
2919 }
2920 }
2921 dstRow += dstRowStride;
2922 src += srcWidth * components;
2923 }
2924 }
2925
2926 free((void *) tempImage);
2927 }
2928 return GL_TRUE;
2929 }
2930
2931
2932 /* non-normalized, signed int32 */
2933 static GLboolean
2934 _mesa_texstore_rgba_int32(TEXSTORE_PARAMS)
2935 {
2936 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2937 GLint components = _mesa_components_in_format(baseFormat);
2938
2939 /* this forces alpha to 1 in make_temp_uint_image */
2940 if (dstFormat == MESA_FORMAT_XBGR32323232_SINT) {
2941 baseFormat = GL_RGBA;
2942 components = 4;
2943 }
2944
2945 ASSERT(dstFormat == MESA_FORMAT_R_INT32 ||
2946 dstFormat == MESA_FORMAT_RG_INT32 ||
2947 dstFormat == MESA_FORMAT_RGB_INT32 ||
2948 dstFormat == MESA_FORMAT_RGBA_INT32 ||
2949 dstFormat == MESA_FORMAT_ALPHA_INT32 ||
2950 dstFormat == MESA_FORMAT_INTENSITY_INT32 ||
2951 dstFormat == MESA_FORMAT_LUMINANCE_INT32 ||
2952 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_INT32 ||
2953 dstFormat == MESA_FORMAT_XBGR32323232_SINT);
2954 ASSERT(baseInternalFormat == GL_RGBA ||
2955 baseInternalFormat == GL_RGB ||
2956 baseInternalFormat == GL_RG ||
2957 baseInternalFormat == GL_RED ||
2958 baseInternalFormat == GL_ALPHA ||
2959 baseInternalFormat == GL_LUMINANCE ||
2960 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2961 baseInternalFormat == GL_INTENSITY);
2962 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLint));
2963
2964 {
2965 /* general path */
2966 const GLuint *tempImage = make_temp_uint_image(ctx, dims,
2967 baseInternalFormat,
2968 baseFormat,
2969 srcWidth, srcHeight, srcDepth,
2970 srcFormat, srcType,
2971 srcAddr,
2972 srcPacking);
2973 const GLuint *src = tempImage;
2974 GLint img, row;
2975 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
2976 if (!tempImage)
2977 return GL_FALSE;
2978 for (img = 0; img < srcDepth; img++) {
2979 GLubyte *dstRow = dstSlices[img];
2980 for (row = 0; row < srcHeight; row++) {
2981 GLint *dstTexel = (GLint *) dstRow;
2982 GLint i;
2983 if (is_unsigned) {
2984 for (i = 0; i < srcWidth * components; i++) {
2985 dstTexel[i] = (GLint) MIN2(src[i], 0x7fffffff);
2986 }
2987 } else {
2988 for (i = 0; i < srcWidth * components; i++) {
2989 dstTexel[i] = (GLint) src[i];
2990 }
2991 }
2992 dstRow += dstRowStride;
2993 src += srcWidth * components;
2994 }
2995 }
2996
2997 free((void *) tempImage);
2998 }
2999 return GL_TRUE;
3000 }
3001
3002
3003 /* non-normalized, unsigned int8 */
3004 static GLboolean
3005 _mesa_texstore_rgba_uint8(TEXSTORE_PARAMS)
3006 {
3007 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3008 GLint components = _mesa_components_in_format(baseFormat);
3009
3010 /* this forces alpha to 1 in make_temp_uint_image */
3011 if (dstFormat == MESA_FORMAT_XBGR8888_UINT) {
3012 baseFormat = GL_RGBA;
3013 components = 4;
3014 }
3015
3016 ASSERT(dstFormat == MESA_FORMAT_R_UINT8 ||
3017 dstFormat == MESA_FORMAT_RG_UINT8 ||
3018 dstFormat == MESA_FORMAT_RGB_UINT8 ||
3019 dstFormat == MESA_FORMAT_RGBA_UINT8 ||
3020 dstFormat == MESA_FORMAT_ALPHA_UINT8 ||
3021 dstFormat == MESA_FORMAT_INTENSITY_UINT8 ||
3022 dstFormat == MESA_FORMAT_LUMINANCE_UINT8 ||
3023 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_UINT8 ||
3024 dstFormat == MESA_FORMAT_XBGR8888_UINT);
3025 ASSERT(baseInternalFormat == GL_RGBA ||
3026 baseInternalFormat == GL_RGB ||
3027 baseInternalFormat == GL_RG ||
3028 baseInternalFormat == GL_RED ||
3029 baseInternalFormat == GL_ALPHA ||
3030 baseInternalFormat == GL_LUMINANCE ||
3031 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3032 baseInternalFormat == GL_INTENSITY);
3033 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLubyte));
3034
3035 {
3036 /* general path */
3037 const GLuint *tempImage =
3038 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3039 srcWidth, srcHeight, srcDepth,
3040 srcFormat, srcType, srcAddr, srcPacking);
3041 const GLuint *src = tempImage;
3042 GLint img, row;
3043 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
3044 if (!tempImage)
3045 return GL_FALSE;
3046 for (img = 0; img < srcDepth; img++) {
3047 GLubyte *dstRow = dstSlices[img];
3048 for (row = 0; row < srcHeight; row++) {
3049 GLubyte *dstTexel = (GLubyte *) dstRow;
3050 GLint i;
3051 if (is_unsigned) {
3052 for (i = 0; i < srcWidth * components; i++) {
3053 dstTexel[i] = (GLubyte) MIN2(src[i], 0xff);
3054 }
3055 } else {
3056 for (i = 0; i < srcWidth * components; i++) {
3057 dstTexel[i] = (GLubyte) CLAMP((GLint) src[i], 0, 0xff);
3058 }
3059 }
3060 dstRow += dstRowStride;
3061 src += srcWidth * components;
3062 }
3063 }
3064
3065 free((void *) tempImage);
3066 }
3067 return GL_TRUE;
3068 }
3069
3070
3071 /* non-normalized, unsigned int16 */
3072 static GLboolean
3073 _mesa_texstore_rgba_uint16(TEXSTORE_PARAMS)
3074 {
3075 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3076 GLint components = _mesa_components_in_format(baseFormat);
3077
3078 /* this forces alpha to 1 in make_temp_uint_image */
3079 if (dstFormat == MESA_FORMAT_XBGR16161616_UINT) {
3080 baseFormat = GL_RGBA;
3081 components = 4;
3082 }
3083
3084 ASSERT(dstFormat == MESA_FORMAT_R_UINT16 ||
3085 dstFormat == MESA_FORMAT_RG_UINT16 ||
3086 dstFormat == MESA_FORMAT_RGB_UINT16 ||
3087 dstFormat == MESA_FORMAT_RGBA_UINT16 ||
3088 dstFormat == MESA_FORMAT_ALPHA_UINT16 ||
3089 dstFormat == MESA_FORMAT_INTENSITY_UINT16 ||
3090 dstFormat == MESA_FORMAT_LUMINANCE_UINT16 ||
3091 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_UINT16 ||
3092 dstFormat == MESA_FORMAT_XBGR16161616_UINT);
3093 ASSERT(baseInternalFormat == GL_RGBA ||
3094 baseInternalFormat == GL_RGB ||
3095 baseInternalFormat == GL_RG ||
3096 baseInternalFormat == GL_RED ||
3097 baseInternalFormat == GL_ALPHA ||
3098 baseInternalFormat == GL_LUMINANCE ||
3099 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3100 baseInternalFormat == GL_INTENSITY);
3101 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLushort));
3102
3103 {
3104 /* general path */
3105 const GLuint *tempImage =
3106 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3107 srcWidth, srcHeight, srcDepth,
3108 srcFormat, srcType, srcAddr, srcPacking);
3109 const GLuint *src = tempImage;
3110 GLint img, row;
3111 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
3112 if (!tempImage)
3113 return GL_FALSE;
3114 for (img = 0; img < srcDepth; img++) {
3115 GLubyte *dstRow = dstSlices[img];
3116 for (row = 0; row < srcHeight; row++) {
3117 GLushort *dstTexel = (GLushort *) dstRow;
3118 GLint i;
3119 if (is_unsigned) {
3120 for (i = 0; i < srcWidth * components; i++) {
3121 dstTexel[i] = (GLushort) MIN2(src[i], 0xffff);
3122 }
3123 } else {
3124 for (i = 0; i < srcWidth * components; i++) {
3125 dstTexel[i] = (GLushort) CLAMP((GLint) src[i], 0, 0xffff);
3126 }
3127 }
3128 dstRow += dstRowStride;
3129 src += srcWidth * components;
3130 }
3131 }
3132
3133 free((void *) tempImage);
3134 }
3135 return GL_TRUE;
3136 }
3137
3138
3139 /* non-normalized, unsigned int32 */
3140 static GLboolean
3141 _mesa_texstore_rgba_uint32(TEXSTORE_PARAMS)
3142 {
3143 GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3144 GLint components = _mesa_components_in_format(baseFormat);
3145
3146 /* this forces alpha to 1 in make_temp_uint_image */
3147 if (dstFormat == MESA_FORMAT_XBGR32323232_UINT) {
3148 baseFormat = GL_RGBA;
3149 components = 4;
3150 }
3151
3152 ASSERT(dstFormat == MESA_FORMAT_R_UINT32 ||
3153 dstFormat == MESA_FORMAT_RG_UINT32 ||
3154 dstFormat == MESA_FORMAT_RGB_UINT32 ||
3155 dstFormat == MESA_FORMAT_RGBA_UINT32 ||
3156 dstFormat == MESA_FORMAT_ALPHA_UINT32 ||
3157 dstFormat == MESA_FORMAT_INTENSITY_UINT32 ||
3158 dstFormat == MESA_FORMAT_LUMINANCE_UINT32 ||
3159 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_UINT32 ||
3160 dstFormat == MESA_FORMAT_XBGR32323232_UINT);
3161 ASSERT(baseInternalFormat == GL_RGBA ||
3162 baseInternalFormat == GL_RGB ||
3163 baseInternalFormat == GL_RG ||
3164 baseInternalFormat == GL_RED ||
3165 baseInternalFormat == GL_ALPHA ||
3166 baseInternalFormat == GL_LUMINANCE ||
3167 baseInternalFormat == GL_LUMINANCE_ALPHA ||
3168 baseInternalFormat == GL_INTENSITY);
3169 ASSERT(_mesa_get_format_bytes(dstFormat) == components * sizeof(GLuint));
3170
3171 {
3172 /* general path */
3173 const GLuint *tempImage =
3174 make_temp_uint_image(ctx, dims, baseInternalFormat, baseFormat,
3175 srcWidth, srcHeight, srcDepth,
3176 srcFormat, srcType, srcAddr, srcPacking);
3177 const GLuint *src = tempImage;
3178 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
3179 GLint img, row;
3180 if (!tempImage)
3181 return GL_FALSE;
3182 for (img = 0; img < srcDepth; img++) {
3183 GLubyte *dstRow = dstSlices[img];
3184 for (row = 0; row < srcHeight; row++) {
3185 GLuint *dstTexel = (GLuint *) dstRow;
3186 GLint i;
3187 if (is_unsigned) {
3188 for (i = 0; i < srcWidth * components; i++) {
3189 dstTexel[i] = src[i];
3190 }
3191 } else {
3192 for (i = 0; i < srcWidth * components; i++) {
3193 dstTexel[i] = MAX2((GLint) src[i], 0);
3194 }
3195 }
3196 dstRow += dstRowStride;
3197 src += srcWidth * components;
3198 }
3199 }
3200
3201 free((void *) tempImage);
3202 }
3203 return GL_TRUE;
3204 }
3205
3206
3207 static GLboolean
3208 _mesa_texstore_srgb8(TEXSTORE_PARAMS)
3209 {
3210 gl_format newDstFormat;
3211 GLboolean k;
3212
3213 ASSERT(dstFormat == MESA_FORMAT_SRGB8);
3214
3215 /* reuse normal rgb texstore code */
3216 newDstFormat = MESA_FORMAT_RGB888;
3217
3218 k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat,
3219 newDstFormat,
3220 dstRowStride, dstSlices,
3221 srcWidth, srcHeight, srcDepth,
3222 srcFormat, srcType,
3223 srcAddr, srcPacking);
3224 return k;
3225 }
3226
3227
3228 static GLboolean
3229 _mesa_texstore_srgba8(TEXSTORE_PARAMS)
3230 {
3231 gl_format newDstFormat;
3232 GLboolean k;
3233
3234 ASSERT(dstFormat == MESA_FORMAT_SRGBA8 ||
3235 dstFormat == MESA_FORMAT_XBGR8888_SRGB);
3236
3237 /* reuse normal rgba texstore code */
3238 if (dstFormat == MESA_FORMAT_SRGBA8) {
3239 newDstFormat = MESA_FORMAT_RGBA8888;
3240 }
3241 else if (dstFormat == MESA_FORMAT_XBGR8888_SRGB) {
3242 newDstFormat = MESA_FORMAT_RGBX8888_REV;
3243 }
3244 else {
3245 ASSERT(0);
3246 return GL_TRUE;
3247 }
3248
3249 k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
3250 newDstFormat,
3251 dstRowStride, dstSlices,
3252 srcWidth, srcHeight, srcDepth,
3253 srcFormat, srcType,
3254 srcAddr, srcPacking);
3255 return k;
3256 }
3257
3258
3259 static GLboolean
3260 _mesa_texstore_sargb8(TEXSTORE_PARAMS)
3261 {
3262 gl_format newDstFormat;
3263 GLboolean k;
3264
3265 ASSERT(dstFormat == MESA_FORMAT_SARGB8);
3266
3267 /* reuse normal rgba texstore code */
3268 newDstFormat = MESA_FORMAT_ARGB8888;
3269
3270 k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat,
3271 newDstFormat,
3272 dstRowStride, dstSlices,
3273 srcWidth, srcHeight, srcDepth,
3274 srcFormat, srcType,
3275 srcAddr, srcPacking);
3276 return k;
3277 }
3278
3279
3280 static GLboolean
3281 _mesa_texstore_sl8(TEXSTORE_PARAMS)
3282 {
3283 gl_format newDstFormat;
3284 GLboolean k;
3285
3286 ASSERT(dstFormat == MESA_FORMAT_SL8);
3287
3288 newDstFormat = MESA_FORMAT_L8;
3289
3290 /* _mesa_textore_a8 handles luminance8 too */
3291 k = _mesa_texstore_unorm8(ctx, dims, baseInternalFormat,
3292 newDstFormat,
3293 dstRowStride, dstSlices,
3294 srcWidth, srcHeight, srcDepth,
3295 srcFormat, srcType,
3296 srcAddr, srcPacking);
3297 return k;
3298 }
3299
3300
3301 static GLboolean
3302 _mesa_texstore_sla8(TEXSTORE_PARAMS)
3303 {
3304 gl_format newDstFormat;
3305 GLboolean k;
3306
3307 ASSERT(dstFormat == MESA_FORMAT_SLA8);
3308
3309 /* reuse normal luminance/alpha texstore code */
3310 newDstFormat = MESA_FORMAT_AL88;
3311
3312 k = _mesa_texstore_unorm88(ctx, dims, baseInternalFormat,
3313 newDstFormat,
3314 dstRowStride, dstSlices,
3315 srcWidth, srcHeight, srcDepth,
3316 srcFormat, srcType,
3317 srcAddr, srcPacking);
3318 return k;
3319 }
3320
3321 static GLboolean
3322 _mesa_texstore_rgb9_e5(TEXSTORE_PARAMS)
3323 {
3324 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3325
3326 ASSERT(dstFormat == MESA_FORMAT_RGB9_E5_FLOAT);
3327 ASSERT(baseInternalFormat == GL_RGB);
3328
3329 {
3330 /* general path */
3331 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
3332 baseInternalFormat,
3333 baseFormat,
3334 srcWidth, srcHeight, srcDepth,
3335 srcFormat, srcType, srcAddr,
3336 srcPacking,
3337 ctx->_ImageTransferState);
3338 const GLfloat *srcRow = tempImage;
3339 GLint img, row, col;
3340 if (!tempImage)
3341 return GL_FALSE;
3342 for (img = 0; img < srcDepth; img++) {
3343 GLubyte *dstRow = dstSlices[img];
3344 for (row = 0; row < srcHeight; row++) {
3345 GLuint *dstUI = (GLuint*)dstRow;
3346 for (col = 0; col < srcWidth; col++) {
3347 dstUI[col] = float3_to_rgb9e5(&srcRow[col * 3]);
3348 }
3349 dstRow += dstRowStride;
3350 srcRow += srcWidth * 3;
3351 }
3352 }
3353
3354 free((void *) tempImage);
3355 }
3356 return GL_TRUE;
3357 }
3358
3359 static GLboolean
3360 _mesa_texstore_r11_g11_b10f(TEXSTORE_PARAMS)
3361 {
3362 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3363
3364 ASSERT(dstFormat == MESA_FORMAT_R11_G11_B10_FLOAT);
3365 ASSERT(baseInternalFormat == GL_RGB);
3366
3367 {
3368 /* general path */
3369 const GLfloat *tempImage = _mesa_make_temp_float_image(ctx, dims,
3370 baseInternalFormat,
3371 baseFormat,
3372 srcWidth, srcHeight, srcDepth,
3373 srcFormat, srcType, srcAddr,
3374 srcPacking,
3375 ctx->_ImageTransferState);
3376 const GLfloat *srcRow = tempImage;
3377 GLint img, row, col;
3378 if (!tempImage)
3379 return GL_FALSE;
3380 for (img = 0; img < srcDepth; img++) {
3381 GLubyte *dstRow = dstSlices[img];
3382 for (row = 0; row < srcHeight; row++) {
3383 GLuint *dstUI = (GLuint*)dstRow;
3384 for (col = 0; col < srcWidth; col++) {
3385 dstUI[col] = float3_to_r11g11b10f(&srcRow[col * 3]);
3386 }
3387 dstRow += dstRowStride;
3388 srcRow += srcWidth * 3;
3389 }
3390 }
3391
3392 free((void *) tempImage);
3393 }
3394 return GL_TRUE;
3395 }
3396
3397
3398 static GLboolean
3399 _mesa_texstore_z32f_x24s8(TEXSTORE_PARAMS)
3400 {
3401 ASSERT(dstFormat == MESA_FORMAT_Z32_FLOAT_X24S8);
3402 ASSERT(srcFormat == GL_DEPTH_STENCIL ||
3403 srcFormat == GL_DEPTH_COMPONENT ||
3404 srcFormat == GL_STENCIL_INDEX);
3405 ASSERT(srcFormat != GL_DEPTH_STENCIL ||
3406 srcType == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
3407
3408 if (srcFormat == GL_DEPTH_COMPONENT ||
3409 srcFormat == GL_STENCIL_INDEX) {
3410 GLint img, row;
3411 const GLint srcRowStride
3412 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
3413 / sizeof(uint64_t);
3414
3415 /* In case we only upload depth we need to preserve the stencil */
3416 for (img = 0; img < srcDepth; img++) {
3417 uint64_t *dstRow = (uint64_t *) dstSlices[img];
3418 const uint64_t *src
3419 = (const uint64_t *) _mesa_image_address(dims, srcPacking, srcAddr,
3420 srcWidth, srcHeight,
3421 srcFormat, srcType,
3422 img, 0, 0);
3423 for (row = 0; row < srcHeight; row++) {
3424 /* The unpack functions with:
3425 * dstType = GL_FLOAT_32_UNSIGNED_INT_24_8_REV
3426 * only write their own dword, so the other dword (stencil
3427 * or depth) is preserved. */
3428 if (srcFormat != GL_STENCIL_INDEX)
3429 _mesa_unpack_depth_span(ctx, srcWidth,
3430 GL_FLOAT_32_UNSIGNED_INT_24_8_REV, /* dst type */
3431 dstRow, /* dst addr */
3432 ~0U, srcType, src, srcPacking);
3433
3434 if (srcFormat != GL_DEPTH_COMPONENT)
3435 _mesa_unpack_stencil_span(ctx, srcWidth,
3436 GL_FLOAT_32_UNSIGNED_INT_24_8_REV, /* dst type */
3437 dstRow, /* dst addr */
3438 srcType, src, srcPacking,
3439 ctx->_ImageTransferState);
3440
3441 src += srcRowStride;
3442 dstRow += dstRowStride / sizeof(uint64_t);
3443 }
3444 }
3445 }
3446 return GL_TRUE;
3447 }
3448
3449 static GLboolean
3450 _mesa_texstore_argb2101010_uint(TEXSTORE_PARAMS)
3451 {
3452 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3453
3454 ASSERT(dstFormat == MESA_FORMAT_ARGB2101010_UINT);
3455 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
3456
3457 {
3458 /* general path */
3459 const GLuint *tempImage = make_temp_uint_image(ctx, dims,
3460 baseInternalFormat,
3461 baseFormat,
3462 srcWidth, srcHeight,
3463 srcDepth, srcFormat,
3464 srcType, srcAddr,
3465 srcPacking);
3466 const GLuint *src = tempImage;
3467 GLint img, row, col;
3468 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
3469 if (!tempImage)
3470 return GL_FALSE;
3471 for (img = 0; img < srcDepth; img++) {
3472 GLubyte *dstRow = dstSlices[img];
3473
3474 for (row = 0; row < srcHeight; row++) {
3475 GLuint *dstUI = (GLuint *) dstRow;
3476 if (is_unsigned) {
3477 for (col = 0; col < srcWidth; col++) {
3478 GLushort a,r,g,b;
3479 r = MIN2(src[RCOMP], 0x3ff);
3480 g = MIN2(src[GCOMP], 0x3ff);
3481 b = MIN2(src[BCOMP], 0x3ff);
3482 a = MIN2(src[ACOMP], 0x003);
3483 dstUI[col] = (a << 30) | (r << 20) | (g << 10) | (b);
3484 src += 4;
3485 }
3486 } else {
3487 for (col = 0; col < srcWidth; col++) {
3488 GLushort a,r,g,b;
3489 r = CLAMP((GLint) src[RCOMP], 0, 0x3ff);
3490 g = CLAMP((GLint) src[GCOMP], 0, 0x3ff);
3491 b = CLAMP((GLint) src[BCOMP], 0, 0x3ff);
3492 a = CLAMP((GLint) src[ACOMP], 0, 0x003);
3493 dstUI[col] = (a << 30) | (r << 20) | (g << 10) | (b);
3494 src += 4;
3495 }
3496 }
3497 dstRow += dstRowStride;
3498 }
3499 }
3500 free((void *) tempImage);
3501 }
3502 return GL_TRUE;
3503 }
3504
3505 static GLboolean
3506 _mesa_texstore_abgr2101010_uint(TEXSTORE_PARAMS)
3507 {
3508 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
3509
3510 ASSERT(dstFormat == MESA_FORMAT_ABGR2101010_UINT);
3511 ASSERT(_mesa_get_format_bytes(dstFormat) == 4);
3512
3513 {
3514 /* general path */
3515 const GLuint *tempImage = make_temp_uint_image(ctx, dims,
3516 baseInternalFormat,
3517 baseFormat,
3518 srcWidth, srcHeight,
3519 srcDepth, srcFormat,
3520 srcType, srcAddr,
3521 srcPacking);
3522 const GLuint *src = tempImage;
3523 GLint img, row, col;
3524 GLboolean is_unsigned = _mesa_is_type_unsigned(srcType);
3525 if (!tempImage)
3526 return GL_FALSE;
3527 for (img = 0; img < srcDepth; img++) {
3528 GLubyte *dstRow = dstSlices[img];
3529
3530 for (row = 0; row < srcHeight; row++) {
3531 GLuint *dstUI = (GLuint *) dstRow;
3532 if (is_unsigned) {
3533 for (col = 0; col < srcWidth; col++) {
3534 GLushort a,r,g,b;
3535 r = MIN2(src[RCOMP], 0x3ff);
3536 g = MIN2(src[GCOMP], 0x3ff);
3537 b = MIN2(src[BCOMP], 0x3ff);
3538 a = MIN2(src[ACOMP], 0x003);
3539 dstUI[col] = (a << 30) | (b << 20) | (g << 10) | (r);
3540 src += 4;
3541 }
3542 } else {
3543 for (col = 0; col < srcWidth; col++) {
3544 GLushort a,r,g,b;
3545 r = CLAMP((GLint) src[RCOMP], 0, 0x3ff);
3546 g = CLAMP((GLint) src[GCOMP], 0, 0x3ff);
3547 b = CLAMP((GLint) src[BCOMP], 0, 0x3ff);
3548 a = CLAMP((GLint) src[ACOMP], 0, 0x003);
3549 dstUI[col] = (a << 30) | (b << 20) | (g << 10) | (r);
3550 src += 4;
3551 }
3552 }
3553 dstRow += dstRowStride;
3554 }
3555 }
3556 free((void *) tempImage);
3557 }
3558 return GL_TRUE;
3559 }
3560
3561 static GLboolean
3562 _mesa_texstore_null(TEXSTORE_PARAMS)
3563 {
3564 (void) ctx; (void) dims;
3565 (void) baseInternalFormat;
3566 (void) dstFormat;
3567 (void) dstRowStride; (void) dstSlices,
3568 (void) srcWidth; (void) srcHeight; (void) srcDepth;
3569 (void) srcFormat; (void) srcType;
3570 (void) srcAddr;
3571 (void) srcPacking;
3572
3573 /* should never happen */
3574 _mesa_problem(NULL, "_mesa_texstore_null() is called");
3575 return GL_FALSE;
3576 }
3577
3578
3579 /**
3580 * Return the StoreTexImageFunc pointer to store an image in the given format.
3581 */
3582 static StoreTexImageFunc
3583 _mesa_get_texstore_func(gl_format format)
3584 {
3585 static StoreTexImageFunc table[MESA_FORMAT_COUNT];
3586 static GLboolean initialized = GL_FALSE;
3587
3588 if (!initialized) {
3589 table[MESA_FORMAT_NONE] = _mesa_texstore_null;
3590
3591 table[MESA_FORMAT_RGBA8888] = _mesa_texstore_rgba8888;
3592 table[MESA_FORMAT_RGBA8888_REV] = _mesa_texstore_rgba8888;
3593 table[MESA_FORMAT_ARGB8888] = _mesa_texstore_argb8888;
3594 table[MESA_FORMAT_ARGB8888_REV] = _mesa_texstore_argb8888;
3595 table[MESA_FORMAT_RGBX8888] = _mesa_texstore_rgba8888;
3596 table[MESA_FORMAT_RGBX8888_REV] = _mesa_texstore_rgba8888;
3597 table[MESA_FORMAT_XRGB8888] = _mesa_texstore_argb8888;
3598 table[MESA_FORMAT_XRGB8888_REV] = _mesa_texstore_argb8888;
3599 table[MESA_FORMAT_RGB888] = _mesa_texstore_rgb888;
3600 table[MESA_FORMAT_BGR888] = _mesa_texstore_bgr888;
3601 table[MESA_FORMAT_RGB565] = _mesa_texstore_rgb565;
3602 table[MESA_FORMAT_RGB565_REV] = _mesa_texstore_rgb565;
3603 table[MESA_FORMAT_ARGB4444] = store_ubyte_texture;
3604 table[MESA_FORMAT_ARGB4444_REV] = store_ubyte_texture;
3605 table[MESA_FORMAT_RGBA5551] = store_ubyte_texture;
3606 table[MESA_FORMAT_ARGB1555] = store_ubyte_texture;
3607 table[MESA_FORMAT_ARGB1555_REV] = store_ubyte_texture;
3608 table[MESA_FORMAT_AL44] = _mesa_texstore_unorm44;
3609 table[MESA_FORMAT_AL88] = _mesa_texstore_unorm88;
3610 table[MESA_FORMAT_AL88_REV] = _mesa_texstore_unorm88;
3611 table[MESA_FORMAT_AL1616] = _mesa_texstore_unorm1616;
3612 table[MESA_FORMAT_AL1616_REV] = _mesa_texstore_unorm1616;
3613 table[MESA_FORMAT_RGB332] = store_ubyte_texture;
3614 table[MESA_FORMAT_A8] = _mesa_texstore_unorm8;
3615 table[MESA_FORMAT_A16] = _mesa_texstore_unorm16;
3616 table[MESA_FORMAT_L8] = _mesa_texstore_unorm8;
3617 table[MESA_FORMAT_L16] = _mesa_texstore_unorm16;
3618 table[MESA_FORMAT_I8] = _mesa_texstore_unorm8;
3619 table[MESA_FORMAT_I16] = _mesa_texstore_unorm16;
3620 table[MESA_FORMAT_YCBCR] = _mesa_texstore_ycbcr;
3621 table[MESA_FORMAT_YCBCR_REV] = _mesa_texstore_ycbcr;
3622 table[MESA_FORMAT_R8] = _mesa_texstore_unorm8;
3623 table[MESA_FORMAT_GR88] = _mesa_texstore_unorm88;
3624 table[MESA_FORMAT_RG88] = _mesa_texstore_unorm88;
3625 table[MESA_FORMAT_R16] = _mesa_texstore_unorm16;
3626 table[MESA_FORMAT_GR1616] = _mesa_texstore_unorm1616;
3627 table[MESA_FORMAT_RG1616] = _mesa_texstore_unorm1616;
3628 table[MESA_FORMAT_ARGB2101010] = _mesa_texstore_argb2101010;
3629 table[MESA_FORMAT_Z24_S8] = _mesa_texstore_z24_s8;
3630 table[MESA_FORMAT_S8_Z24] = _mesa_texstore_s8_z24;
3631 table[MESA_FORMAT_Z16] = _mesa_texstore_z16;
3632 table[MESA_FORMAT_X8_Z24] = _mesa_texstore_x8_z24;
3633 table[MESA_FORMAT_Z24_X8] = _mesa_texstore_z24_x8;
3634 table[MESA_FORMAT_Z32] = _mesa_texstore_z32;
3635 table[MESA_FORMAT_S8] = _mesa_texstore_s8;
3636 table[MESA_FORMAT_SRGB8] = _mesa_texstore_srgb8;
3637 table[MESA_FORMAT_SRGBA8] = _mesa_texstore_srgba8;
3638 table[MESA_FORMAT_SARGB8] = _mesa_texstore_sargb8;
3639 table[MESA_FORMAT_SL8] = _mesa_texstore_sl8;
3640 table[MESA_FORMAT_SLA8] = _mesa_texstore_sla8;
3641 table[MESA_FORMAT_SRGB_DXT1] = _mesa_texstore_rgb_dxt1;
3642 table[MESA_FORMAT_SRGBA_DXT1] = _mesa_texstore_rgba_dxt1;
3643 table[MESA_FORMAT_SRGBA_DXT3] = _mesa_texstore_rgba_dxt3;
3644 table[MESA_FORMAT_SRGBA_DXT5] = _mesa_texstore_rgba_dxt5;
3645 table[MESA_FORMAT_RGB_FXT1] = _mesa_texstore_rgb_fxt1;
3646 table[MESA_FORMAT_RGBA_FXT1] = _mesa_texstore_rgba_fxt1;
3647 table[MESA_FORMAT_RGB_DXT1] = _mesa_texstore_rgb_dxt1;
3648 table[MESA_FORMAT_RGBA_DXT1] = _mesa_texstore_rgba_dxt1;
3649 table[MESA_FORMAT_RGBA_DXT3] = _mesa_texstore_rgba_dxt3;
3650 table[MESA_FORMAT_RGBA_DXT5] = _mesa_texstore_rgba_dxt5;
3651 table[MESA_FORMAT_RGBA_FLOAT32] = _mesa_texstore_rgba_float32;
3652 table[MESA_FORMAT_RGBA_FLOAT16] = _mesa_texstore_rgba_float16;
3653 table[MESA_FORMAT_RGB_FLOAT32] = _mesa_texstore_rgba_float32;
3654 table[MESA_FORMAT_RGB_FLOAT16] = _mesa_texstore_rgba_float16;
3655 table[MESA_FORMAT_ALPHA_FLOAT32] = _mesa_texstore_rgba_float32;
3656 table[MESA_FORMAT_ALPHA_FLOAT16] = _mesa_texstore_rgba_float16;
3657 table[MESA_FORMAT_LUMINANCE_FLOAT32] = _mesa_texstore_rgba_float32;
3658 table[MESA_FORMAT_LUMINANCE_FLOAT16] = _mesa_texstore_rgba_float16;
3659 table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32] = _mesa_texstore_rgba_float32;
3660 table[MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16] = _mesa_texstore_rgba_float16;
3661 table[MESA_FORMAT_INTENSITY_FLOAT32] = _mesa_texstore_rgba_float32;
3662 table[MESA_FORMAT_INTENSITY_FLOAT16] = _mesa_texstore_rgba_float16;
3663 table[MESA_FORMAT_R_FLOAT32] = _mesa_texstore_rgba_float32;
3664 table[MESA_FORMAT_R_FLOAT16] = _mesa_texstore_rgba_float16;
3665 table[MESA_FORMAT_RG_FLOAT32] = _mesa_texstore_rgba_float32;
3666 table[MESA_FORMAT_RG_FLOAT16] = _mesa_texstore_rgba_float16;
3667 table[MESA_FORMAT_DUDV8] = _mesa_texstore_dudv8;
3668 table[MESA_FORMAT_SIGNED_R8] = _mesa_texstore_snorm8;
3669 table[MESA_FORMAT_SIGNED_RG88_REV] = _mesa_texstore_snorm88;
3670 table[MESA_FORMAT_SIGNED_RGBX8888] = _mesa_texstore_signed_rgbx8888;
3671 table[MESA_FORMAT_SIGNED_RGBA8888] = _mesa_texstore_signed_rgba8888;
3672 table[MESA_FORMAT_SIGNED_RGBA8888_REV] = _mesa_texstore_signed_rgba8888;
3673 table[MESA_FORMAT_SIGNED_R16] = _mesa_texstore_snorm16;
3674 table[MESA_FORMAT_SIGNED_GR1616] = _mesa_texstore_snorm1616;
3675 table[MESA_FORMAT_SIGNED_RGB_16] = _mesa_texstore_signed_rgba_16;
3676 table[MESA_FORMAT_SIGNED_RGBA_16] = _mesa_texstore_signed_rgba_16;
3677 table[MESA_FORMAT_RGBA_16] = _mesa_texstore_rgba_16;
3678 table[MESA_FORMAT_RED_RGTC1] = _mesa_texstore_red_rgtc1;
3679 table[MESA_FORMAT_SIGNED_RED_RGTC1] = _mesa_texstore_signed_red_rgtc1;
3680 table[MESA_FORMAT_RG_RGTC2] = _mesa_texstore_rg_rgtc2;
3681 table[MESA_FORMAT_SIGNED_RG_RGTC2] = _mesa_texstore_signed_rg_rgtc2;
3682 table[MESA_FORMAT_L_LATC1] = _mesa_texstore_red_rgtc1;
3683 table[MESA_FORMAT_SIGNED_L_LATC1] = _mesa_texstore_signed_red_rgtc1;
3684 table[MESA_FORMAT_LA_LATC2] = _mesa_texstore_rg_rgtc2;
3685 table[MESA_FORMAT_SIGNED_LA_LATC2] = _mesa_texstore_signed_rg_rgtc2;
3686 table[MESA_FORMAT_ETC1_RGB8] = _mesa_texstore_etc1_rgb8;
3687 table[MESA_FORMAT_ETC2_RGB8] = _mesa_texstore_etc2_rgb8;
3688 table[MESA_FORMAT_ETC2_SRGB8] = _mesa_texstore_etc2_srgb8;
3689 table[MESA_FORMAT_ETC2_RGBA8_EAC] = _mesa_texstore_etc2_rgba8_eac;
3690 table[MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC] = _mesa_texstore_etc2_srgb8_alpha8_eac;
3691 table[MESA_FORMAT_ETC2_R11_EAC] = _mesa_texstore_etc2_r11_eac;
3692 table[MESA_FORMAT_ETC2_RG11_EAC] = _mesa_texstore_etc2_rg11_eac;
3693 table[MESA_FORMAT_ETC2_SIGNED_R11_EAC] = _mesa_texstore_etc2_signed_r11_eac;
3694 table[MESA_FORMAT_ETC2_SIGNED_RG11_EAC] = _mesa_texstore_etc2_signed_rg11_eac;
3695 table[MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1] =
3696 _mesa_texstore_etc2_rgb8_punchthrough_alpha1;
3697 table[MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1] =
3698 _mesa_texstore_etc2_srgb8_punchthrough_alpha1;
3699 table[MESA_FORMAT_SIGNED_A8] = _mesa_texstore_snorm8;
3700 table[MESA_FORMAT_SIGNED_L8] = _mesa_texstore_snorm8;
3701 table[MESA_FORMAT_SIGNED_AL88] = _mesa_texstore_snorm88;
3702 table[MESA_FORMAT_SIGNED_I8] = _mesa_texstore_snorm8;
3703 table[MESA_FORMAT_SIGNED_A16] = _mesa_texstore_snorm16;
3704 table[MESA_FORMAT_SIGNED_L16] = _mesa_texstore_snorm16;
3705 table[MESA_FORMAT_SIGNED_AL1616] = _mesa_texstore_snorm1616;
3706 table[MESA_FORMAT_SIGNED_I16] = _mesa_texstore_snorm16;
3707 table[MESA_FORMAT_RGB9_E5_FLOAT] = _mesa_texstore_rgb9_e5;
3708 table[MESA_FORMAT_R11_G11_B10_FLOAT] = _mesa_texstore_r11_g11_b10f;
3709 table[MESA_FORMAT_Z32_FLOAT] = _mesa_texstore_z32;
3710 table[MESA_FORMAT_Z32_FLOAT_X24S8] = _mesa_texstore_z32f_x24s8;
3711
3712 table[MESA_FORMAT_ALPHA_UINT8] = _mesa_texstore_rgba_uint8;
3713 table[MESA_FORMAT_ALPHA_UINT16] = _mesa_texstore_rgba_uint16;
3714 table[MESA_FORMAT_ALPHA_UINT32] = _mesa_texstore_rgba_uint32;
3715 table[MESA_FORMAT_ALPHA_INT8] = _mesa_texstore_rgba_int8;
3716 table[MESA_FORMAT_ALPHA_INT16] = _mesa_texstore_rgba_int16;
3717 table[MESA_FORMAT_ALPHA_INT32] = _mesa_texstore_rgba_int32;
3718
3719 table[MESA_FORMAT_INTENSITY_UINT8] = _mesa_texstore_rgba_uint8;
3720 table[MESA_FORMAT_INTENSITY_UINT16] = _mesa_texstore_rgba_uint16;
3721 table[MESA_FORMAT_INTENSITY_UINT32] = _mesa_texstore_rgba_uint32;
3722 table[MESA_FORMAT_INTENSITY_INT8] = _mesa_texstore_rgba_int8;
3723 table[MESA_FORMAT_INTENSITY_INT16] = _mesa_texstore_rgba_int16;
3724 table[MESA_FORMAT_INTENSITY_INT32] = _mesa_texstore_rgba_int32;
3725
3726 table[MESA_FORMAT_LUMINANCE_UINT8] = _mesa_texstore_rgba_uint8;
3727 table[MESA_FORMAT_LUMINANCE_UINT16] = _mesa_texstore_rgba_uint16;
3728 table[MESA_FORMAT_LUMINANCE_UINT32] = _mesa_texstore_rgba_uint32;
3729 table[MESA_FORMAT_LUMINANCE_INT8] = _mesa_texstore_rgba_int8;
3730 table[MESA_FORMAT_LUMINANCE_INT16] = _mesa_texstore_rgba_int16;
3731 table[MESA_FORMAT_LUMINANCE_INT32] = _mesa_texstore_rgba_int32;
3732
3733 table[MESA_FORMAT_LUMINANCE_ALPHA_UINT8] = _mesa_texstore_rgba_uint8;
3734 table[MESA_FORMAT_LUMINANCE_ALPHA_UINT16] = _mesa_texstore_rgba_uint16;
3735 table[MESA_FORMAT_LUMINANCE_ALPHA_UINT32] = _mesa_texstore_rgba_uint32;
3736 table[MESA_FORMAT_LUMINANCE_ALPHA_INT8] = _mesa_texstore_rgba_int8;
3737 table[MESA_FORMAT_LUMINANCE_ALPHA_INT16] = _mesa_texstore_rgba_int16;
3738 table[MESA_FORMAT_LUMINANCE_ALPHA_INT32] = _mesa_texstore_rgba_int32;
3739
3740 table[MESA_FORMAT_R_INT8] = _mesa_texstore_rgba_int8;
3741 table[MESA_FORMAT_RG_INT8] = _mesa_texstore_rgba_int8;
3742 table[MESA_FORMAT_RGB_INT8] = _mesa_texstore_rgba_int8;
3743 table[MESA_FORMAT_RGBA_INT8] = _mesa_texstore_rgba_int8;
3744 table[MESA_FORMAT_R_INT16] = _mesa_texstore_rgba_int16;
3745 table[MESA_FORMAT_RG_INT16] = _mesa_texstore_rgba_int16;
3746 table[MESA_FORMAT_RGB_INT16] = _mesa_texstore_rgba_int16;
3747 table[MESA_FORMAT_RGBA_INT16] = _mesa_texstore_rgba_int16;
3748 table[MESA_FORMAT_R_INT32] = _mesa_texstore_rgba_int32;
3749 table[MESA_FORMAT_RG_INT32] = _mesa_texstore_rgba_int32;
3750 table[MESA_FORMAT_RGB_INT32] = _mesa_texstore_rgba_int32;
3751 table[MESA_FORMAT_RGBA_INT32] = _mesa_texstore_rgba_int32;
3752
3753 table[MESA_FORMAT_R_UINT8] = _mesa_texstore_rgba_uint8;
3754 table[MESA_FORMAT_RG_UINT8] = _mesa_texstore_rgba_uint8;
3755 table[MESA_FORMAT_RGB_UINT8] = _mesa_texstore_rgba_uint8;
3756 table[MESA_FORMAT_RGBA_UINT8] = _mesa_texstore_rgba_uint8;
3757 table[MESA_FORMAT_R_UINT16] = _mesa_texstore_rgba_uint16;
3758 table[MESA_FORMAT_RG_UINT16] = _mesa_texstore_rgba_uint16;
3759 table[MESA_FORMAT_RGB_UINT16] = _mesa_texstore_rgba_uint16;
3760 table[MESA_FORMAT_RGBA_UINT16] = _mesa_texstore_rgba_uint16;
3761 table[MESA_FORMAT_R_UINT32] = _mesa_texstore_rgba_uint32;
3762 table[MESA_FORMAT_RG_UINT32] = _mesa_texstore_rgba_uint32;
3763 table[MESA_FORMAT_RGB_UINT32] = _mesa_texstore_rgba_uint32;
3764 table[MESA_FORMAT_RGBA_UINT32] = _mesa_texstore_rgba_uint32;
3765
3766 table[MESA_FORMAT_ARGB2101010_UINT] = _mesa_texstore_argb2101010_uint;
3767 table[MESA_FORMAT_ABGR2101010_UINT] = _mesa_texstore_abgr2101010_uint;
3768
3769 table[MESA_FORMAT_XRGB4444_UNORM] = store_ubyte_texture;
3770 table[MESA_FORMAT_XRGB1555_UNORM] = store_ubyte_texture;
3771 table[MESA_FORMAT_XBGR8888_SNORM] = _mesa_texstore_signed_rgbx8888;
3772 table[MESA_FORMAT_XBGR8888_SRGB] = _mesa_texstore_srgba8;
3773 table[MESA_FORMAT_XBGR8888_UINT] = _mesa_texstore_rgba_uint8;
3774 table[MESA_FORMAT_XBGR8888_SINT] = _mesa_texstore_rgba_int8;
3775 table[MESA_FORMAT_XRGB2101010_UNORM] = _mesa_texstore_argb2101010;
3776 table[MESA_FORMAT_XBGR16161616_UNORM] = _mesa_texstore_rgba_16;
3777 table[MESA_FORMAT_XBGR16161616_SNORM] = _mesa_texstore_signed_rgba_16;
3778 table[MESA_FORMAT_XBGR16161616_FLOAT] = _mesa_texstore_rgba_float16;
3779 table[MESA_FORMAT_XBGR16161616_UINT] = _mesa_texstore_rgba_uint16;
3780 table[MESA_FORMAT_XBGR16161616_SINT] = _mesa_texstore_rgba_int16;
3781 table[MESA_FORMAT_XBGR32323232_FLOAT] = _mesa_texstore_rgba_float32;
3782 table[MESA_FORMAT_XBGR32323232_UINT] = _mesa_texstore_rgba_uint32;
3783 table[MESA_FORMAT_XBGR32323232_SINT] = _mesa_texstore_rgba_int32;
3784
3785 initialized = GL_TRUE;
3786 }
3787
3788 ASSERT(table[format]);
3789 return table[format];
3790 }
3791
3792
3793 GLboolean
3794 _mesa_texstore_needs_transfer_ops(struct gl_context *ctx,
3795 GLenum baseInternalFormat,
3796 gl_format dstFormat)
3797 {
3798 GLenum dstType;
3799
3800 /* There are different rules depending on the base format. */
3801 switch (baseInternalFormat) {
3802 case GL_DEPTH_COMPONENT:
3803 case GL_DEPTH_STENCIL:
3804 return ctx->Pixel.DepthScale != 1.0f ||
3805 ctx->Pixel.DepthBias != 0.0f;
3806
3807 case GL_STENCIL_INDEX:
3808 return GL_FALSE;
3809
3810 default:
3811 /* Color formats.
3812 * Pixel transfer ops (scale, bias, table lookup) do not apply
3813 * to integer formats.
3814 */
3815 dstType = _mesa_get_format_datatype(dstFormat);
3816
3817 return dstType != GL_INT && dstType != GL_UNSIGNED_INT &&
3818 ctx->_ImageTransferState;
3819 }
3820 }
3821
3822
3823 GLboolean
3824 _mesa_texstore_can_use_memcpy(struct gl_context *ctx,
3825 GLenum baseInternalFormat, gl_format dstFormat,
3826 GLenum srcFormat, GLenum srcType,
3827 const struct gl_pixelstore_attrib *srcPacking)
3828 {
3829 if (_mesa_texstore_needs_transfer_ops(ctx, baseInternalFormat, dstFormat)) {
3830 return GL_FALSE;
3831 }
3832
3833 /* The base internal format and the base Mesa format must match. */
3834 if (baseInternalFormat != _mesa_get_format_base_format(dstFormat)) {
3835 return GL_FALSE;
3836 }
3837
3838 /* The Mesa format must match the input format and type. */
3839 if (!_mesa_format_matches_format_and_type(dstFormat, srcFormat, srcType,
3840 srcPacking->SwapBytes)) {
3841 return GL_FALSE;
3842 }
3843
3844 return GL_TRUE;
3845 }
3846
3847 static GLboolean
3848 _mesa_texstore_memcpy(TEXSTORE_PARAMS)
3849 {
3850 if (!_mesa_texstore_can_use_memcpy(ctx, baseInternalFormat, dstFormat,
3851 srcFormat, srcType, srcPacking)) {
3852 return GL_FALSE;
3853 }
3854
3855 memcpy_texture(ctx, dims,
3856 dstFormat,
3857 dstRowStride, dstSlices,
3858 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
3859 srcAddr, srcPacking);
3860 return GL_TRUE;
3861 }
3862
3863
3864 /**
3865 * Store user data into texture memory.
3866 * Called via glTex[Sub]Image1/2/3D()
3867 */
3868 GLboolean
3869 _mesa_texstore(TEXSTORE_PARAMS)
3870 {
3871 StoreTexImageFunc storeImage;
3872 GLboolean success;
3873
3874 if (_mesa_texstore_memcpy(ctx, dims, baseInternalFormat,
3875 dstFormat,
3876 dstRowStride, dstSlices,
3877 srcWidth, srcHeight, srcDepth,
3878 srcFormat, srcType, srcAddr, srcPacking)) {
3879 return GL_TRUE;
3880 }
3881
3882 storeImage = _mesa_get_texstore_func(dstFormat);
3883
3884 success = storeImage(ctx, dims, baseInternalFormat,
3885 dstFormat,
3886 dstRowStride, dstSlices,
3887 srcWidth, srcHeight, srcDepth,
3888 srcFormat, srcType, srcAddr, srcPacking);
3889 return success;
3890 }
3891
3892
3893 /**
3894 * Normally, we'll only _write_ texel data to a texture when we map it.
3895 * But if the user is providing depth or stencil values and the texture
3896 * image is a combined depth/stencil format, we'll actually read from
3897 * the texture buffer too (in order to insert the depth or stencil values.
3898 * \param userFormat the user-provided image format
3899 * \param texFormat the destination texture format
3900 */
3901 static GLbitfield
3902 get_read_write_mode(GLenum userFormat, gl_format texFormat)
3903 {
3904 if ((userFormat == GL_STENCIL_INDEX || userFormat == GL_DEPTH_COMPONENT)
3905 && _mesa_get_format_base_format(texFormat) == GL_DEPTH_STENCIL)
3906 return GL_MAP_READ_BIT | GL_MAP_WRITE_BIT;
3907 else
3908 return GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT;
3909 }
3910
3911
3912 /**
3913 * Helper function for storing 1D, 2D, 3D whole and subimages into texture
3914 * memory.
3915 * The source of the image data may be user memory or a PBO. In the later
3916 * case, we'll map the PBO, copy from it, then unmap it.
3917 */
3918 static void
3919 store_texsubimage(struct gl_context *ctx,
3920 struct gl_texture_image *texImage,
3921 GLint xoffset, GLint yoffset, GLint zoffset,
3922 GLint width, GLint height, GLint depth,
3923 GLenum format, GLenum type, const GLvoid *pixels,
3924 const struct gl_pixelstore_attrib *packing,
3925 const char *caller)
3926
3927 {
3928 const GLbitfield mapMode = get_read_write_mode(format, texImage->TexFormat);
3929 const GLenum target = texImage->TexObject->Target;
3930 GLboolean success = GL_FALSE;
3931 GLuint dims, slice, numSlices = 1, sliceOffset = 0;
3932 GLint srcImageStride = 0;
3933 const GLubyte *src;
3934
3935 assert(xoffset + width <= texImage->Width);
3936 assert(yoffset + height <= texImage->Height);
3937 assert(zoffset + depth <= texImage->Depth);
3938
3939 switch (target) {
3940 case GL_TEXTURE_1D:
3941 dims = 1;
3942 break;
3943 case GL_TEXTURE_2D_ARRAY:
3944 case GL_TEXTURE_CUBE_MAP_ARRAY:
3945 case GL_TEXTURE_3D:
3946 dims = 3;
3947 break;
3948 default:
3949 dims = 2;
3950 }
3951
3952 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3953 src = (const GLubyte *)
3954 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth,
3955 format, type, pixels, packing, caller);
3956 if (!src)
3957 return;
3958
3959 /* compute slice info (and do some sanity checks) */
3960 switch (target) {
3961 case GL_TEXTURE_2D:
3962 case GL_TEXTURE_RECTANGLE:
3963 case GL_TEXTURE_CUBE_MAP:
3964 /* one image slice, nothing special needs to be done */
3965 break;
3966 case GL_TEXTURE_1D:
3967 assert(height == 1);
3968 assert(depth == 1);
3969 assert(yoffset == 0);
3970 assert(zoffset == 0);
3971 break;
3972 case GL_TEXTURE_1D_ARRAY:
3973 assert(depth == 1);
3974 assert(zoffset == 0);
3975 numSlices = height;
3976 sliceOffset = yoffset;
3977 height = 1;
3978 yoffset = 0;
3979 srcImageStride = _mesa_image_row_stride(packing, width, format, type);
3980 break;
3981 case GL_TEXTURE_2D_ARRAY:
3982 numSlices = depth;
3983 sliceOffset = zoffset;
3984 depth = 1;
3985 zoffset = 0;
3986 srcImageStride = _mesa_image_image_stride(packing, width, height,
3987 format, type);
3988 break;
3989 case GL_TEXTURE_3D:
3990 /* we'll store 3D images as a series of slices */
3991 numSlices = depth;
3992 sliceOffset = zoffset;
3993 srcImageStride = _mesa_image_image_stride(packing, width, height,
3994 format, type);
3995 break;
3996 case GL_TEXTURE_CUBE_MAP_ARRAY:
3997 numSlices = depth;
3998 sliceOffset = zoffset;
3999 srcImageStride = _mesa_image_image_stride(packing, width, height,
4000 format, type);
4001 break;
4002 default:
4003 _mesa_warning(ctx, "Unexpected target 0x%x in store_texsubimage()", target);
4004 return;
4005 }
4006
4007 assert(numSlices == 1 || srcImageStride != 0);
4008
4009 for (slice = 0; slice < numSlices; slice++) {
4010 GLubyte *dstMap;
4011 GLint dstRowStride;
4012
4013 ctx->Driver.MapTextureImage(ctx, texImage,
4014 slice + sliceOffset,
4015 xoffset, yoffset, width, height,
4016 mapMode, &dstMap, &dstRowStride);
4017 if (dstMap) {
4018 /* Note: we're only storing a 2D (or 1D) slice at a time but we need
4019 * to pass the right 'dims' value so that GL_UNPACK_SKIP_IMAGES is
4020 * used for 3D images.
4021 */
4022 success = _mesa_texstore(ctx, dims, texImage->_BaseFormat,
4023 texImage->TexFormat,
4024 dstRowStride,
4025 &dstMap,
4026 width, height, 1, /* w, h, d */
4027 format, type, src, packing);
4028
4029 ctx->Driver.UnmapTextureImage(ctx, texImage, slice + sliceOffset);
4030 }
4031
4032 src += srcImageStride;
4033
4034 if (!success)
4035 break;
4036 }
4037
4038 if (!success)
4039 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s", caller);
4040
4041 _mesa_unmap_teximage_pbo(ctx, packing);
4042 }
4043
4044
4045
4046 /**
4047 * Fallback code for ctx->Driver.TexImage().
4048 * Basically, allocate storage for the texture image, then copy the
4049 * user's image into it.
4050 */
4051 void
4052 _mesa_store_teximage(struct gl_context *ctx,
4053 GLuint dims,
4054 struct gl_texture_image *texImage,
4055 GLenum format, GLenum type, const GLvoid *pixels,
4056 const struct gl_pixelstore_attrib *packing)
4057 {
4058 assert(dims == 1 || dims == 2 || dims == 3);
4059
4060 if (texImage->Width == 0 || texImage->Height == 0 || texImage->Depth == 0)
4061 return;
4062
4063 /* allocate storage for texture data */
4064 if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
4065 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
4066 return;
4067 }
4068
4069 store_texsubimage(ctx, texImage,
4070 0, 0, 0, texImage->Width, texImage->Height, texImage->Depth,
4071 format, type, pixels, packing, "glTexImage");
4072 }
4073
4074
4075 /*
4076 * Fallback for Driver.TexSubImage().
4077 */
4078 void
4079 _mesa_store_texsubimage(struct gl_context *ctx, GLuint dims,
4080 struct gl_texture_image *texImage,
4081 GLint xoffset, GLint yoffset, GLint zoffset,
4082 GLint width, GLint height, GLint depth,
4083 GLenum format, GLenum type, const void *pixels,
4084 const struct gl_pixelstore_attrib *packing)
4085 {
4086 store_texsubimage(ctx, texImage,
4087 xoffset, yoffset, zoffset, width, height, depth,
4088 format, type, pixels, packing, "glTexSubImage");
4089 }
4090
4091
4092 /**
4093 * Fallback for Driver.CompressedTexImage()
4094 */
4095 void
4096 _mesa_store_compressed_teximage(struct gl_context *ctx, GLuint dims,
4097 struct gl_texture_image *texImage,
4098 GLsizei imageSize, const GLvoid *data)
4099 {
4100 /* only 2D and 3D compressed images are supported at this time */
4101 if (dims == 1) {
4102 _mesa_problem(ctx, "Unexpected glCompressedTexImage1D call");
4103 return;
4104 }
4105
4106 /* This is pretty simple, because unlike the general texstore path we don't
4107 * have to worry about the usual image unpacking or image transfer
4108 * operations.
4109 */
4110 ASSERT(texImage);
4111 ASSERT(texImage->Width > 0);
4112 ASSERT(texImage->Height > 0);
4113 ASSERT(texImage->Depth > 0);
4114
4115 /* allocate storage for texture data */
4116 if (!ctx->Driver.AllocTextureImageBuffer(ctx, texImage)) {
4117 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage%uD", dims);
4118 return;
4119 }
4120
4121 _mesa_store_compressed_texsubimage(ctx, dims, texImage,
4122 0, 0, 0,
4123 texImage->Width, texImage->Height, texImage->Depth,
4124 texImage->TexFormat,
4125 imageSize, data);
4126 }
4127
4128
4129 /**
4130 * Fallback for Driver.CompressedTexSubImage()
4131 */
4132 void
4133 _mesa_store_compressed_texsubimage(struct gl_context *ctx, GLuint dims,
4134 struct gl_texture_image *texImage,
4135 GLint xoffset, GLint yoffset, GLint zoffset,
4136 GLsizei width, GLsizei height, GLsizei depth,
4137 GLenum format,
4138 GLsizei imageSize, const GLvoid *data)
4139 {
4140 GLint bytesPerRow, dstRowStride, srcRowStride;
4141 GLint i, rows;
4142 GLubyte *dstMap;
4143 const GLubyte *src;
4144 const gl_format texFormat = texImage->TexFormat;
4145 GLuint bw, bh;
4146 GLuint slice;
4147
4148 if (dims == 1) {
4149 _mesa_problem(ctx, "Unexpected 1D compressed texsubimage call");
4150 return;
4151 }
4152
4153 _mesa_get_format_block_size(texFormat, &bw, &bh);
4154
4155 /* get pointer to src pixels (may be in a pbo which we'll map here) */
4156 data = _mesa_validate_pbo_compressed_teximage(ctx, dims, imageSize, data,
4157 &ctx->Unpack,
4158 "glCompressedTexSubImage");
4159 if (!data)
4160 return;
4161
4162 srcRowStride = _mesa_format_row_stride(texFormat, width);
4163 src = (const GLubyte *) data;
4164
4165 for (slice = 0; slice < depth; slice++) {
4166 /* Map dest texture buffer */
4167 ctx->Driver.MapTextureImage(ctx, texImage, slice + zoffset,
4168 xoffset, yoffset, width, height,
4169 GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT,
4170 &dstMap, &dstRowStride);
4171
4172 if (dstMap) {
4173 bytesPerRow = srcRowStride; /* bytes per row of blocks */
4174 rows = (height + bh - 1) / bh; /* rows in blocks */
4175
4176 /* copy rows of blocks */
4177 for (i = 0; i < rows; i++) {
4178 memcpy(dstMap, src, bytesPerRow);
4179 dstMap += dstRowStride;
4180 src += srcRowStride;
4181 }
4182
4183 ctx->Driver.UnmapTextureImage(ctx, texImage, slice + zoffset);
4184 }
4185 else {
4186 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage%uD",
4187 dims);
4188 }
4189 }
4190
4191 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
4192 }