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mesa: added MESA_FORMAT_SIGNED_RGBA_16 for accum buffers
[mesa.git] / src / mesa / main / texstore.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.5
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008-2009 VMware, Inc.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26 /*
27 * Authors:
28 * Brian Paul
29 */
30
31 /**
32 * The GL texture image functions in teximage.c basically just do
33 * error checking and data structure allocation. They in turn call
34 * device driver functions which actually copy/convert/store the user's
35 * texture image data.
36 *
37 * However, most device drivers will be able to use the fallback functions
38 * in this file. That is, most drivers will have the following bit of
39 * code:
40 * ctx->Driver.TexImage1D = _mesa_store_teximage1d;
41 * ctx->Driver.TexImage2D = _mesa_store_teximage2d;
42 * ctx->Driver.TexImage3D = _mesa_store_teximage3d;
43 * etc...
44 *
45 * Texture image processing is actually kind of complicated. We have to do:
46 * Format/type conversions
47 * pixel unpacking
48 * pixel transfer (scale, bais, lookup, convolution!, etc)
49 *
50 * These functions can handle most everything, including processing full
51 * images and sub-images.
52 */
53
54
55 #include "glheader.h"
56 #include "bufferobj.h"
57 #include "colormac.h"
58 #include "context.h"
59 #include "convolve.h"
60 #include "image.h"
61 #include "macros.h"
62 #include "mipmap.h"
63 #include "imports.h"
64 #include "texcompress.h"
65 #include "texcompress_fxt1.h"
66 #include "texcompress_s3tc.h"
67 #include "teximage.h"
68 #include "texstore.h"
69 #include "enums.h"
70
71
72 enum {
73 ZERO = 4,
74 ONE = 5
75 };
76
77
78 /**
79 * Texture image storage function.
80 */
81 typedef GLboolean (*StoreTexImageFunc)(TEXSTORE_PARAMS);
82
83
84 /**
85 * Return GL_TRUE if the given image format is one that be converted
86 * to another format by swizzling.
87 */
88 static GLboolean
89 can_swizzle(GLenum logicalBaseFormat)
90 {
91 switch (logicalBaseFormat) {
92 case GL_RGBA:
93 case GL_RGB:
94 case GL_LUMINANCE_ALPHA:
95 case GL_INTENSITY:
96 case GL_ALPHA:
97 case GL_LUMINANCE:
98 case GL_RED:
99 case GL_GREEN:
100 case GL_BLUE:
101 case GL_BGR:
102 case GL_BGRA:
103 case GL_ABGR_EXT:
104 return GL_TRUE;
105 default:
106 return GL_FALSE;
107 }
108 }
109
110
111
112 enum {
113 IDX_LUMINANCE = 0,
114 IDX_ALPHA,
115 IDX_INTENSITY,
116 IDX_LUMINANCE_ALPHA,
117 IDX_RGB,
118 IDX_RGBA,
119 IDX_RED,
120 IDX_GREEN,
121 IDX_BLUE,
122 IDX_BGR,
123 IDX_BGRA,
124 IDX_ABGR,
125 MAX_IDX
126 };
127
128 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
129 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
130 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
131 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
132
133
134 static const struct {
135 GLubyte format_idx;
136 GLubyte to_rgba[6];
137 GLubyte from_rgba[6];
138 } mappings[MAX_IDX] =
139 {
140 {
141 IDX_LUMINANCE,
142 MAP4(0,0,0,ONE),
143 MAP1(0)
144 },
145
146 {
147 IDX_ALPHA,
148 MAP4(ZERO, ZERO, ZERO, 0),
149 MAP1(3)
150 },
151
152 {
153 IDX_INTENSITY,
154 MAP4(0, 0, 0, 0),
155 MAP1(0),
156 },
157
158 {
159 IDX_LUMINANCE_ALPHA,
160 MAP4(0,0,0,1),
161 MAP2(0,3)
162 },
163
164 {
165 IDX_RGB,
166 MAP4(0,1,2,ONE),
167 MAP3(0,1,2)
168 },
169
170 {
171 IDX_RGBA,
172 MAP4(0,1,2,3),
173 MAP4(0,1,2,3),
174 },
175
176
177 {
178 IDX_RED,
179 MAP4(0, ZERO, ZERO, ONE),
180 MAP1(0),
181 },
182
183 {
184 IDX_GREEN,
185 MAP4(ZERO, 0, ZERO, ONE),
186 MAP1(1),
187 },
188
189 {
190 IDX_BLUE,
191 MAP4(ZERO, ZERO, 0, ONE),
192 MAP1(2),
193 },
194
195 {
196 IDX_BGR,
197 MAP4(2,1,0,ONE),
198 MAP3(2,1,0)
199 },
200
201 {
202 IDX_BGRA,
203 MAP4(2,1,0,3),
204 MAP4(2,1,0,3)
205 },
206
207 {
208 IDX_ABGR,
209 MAP4(3,2,1,0),
210 MAP4(3,2,1,0)
211 },
212 };
213
214
215
216 /**
217 * Convert a GL image format enum to an IDX_* value (see above).
218 */
219 static int
220 get_map_idx(GLenum value)
221 {
222 switch (value) {
223 case GL_LUMINANCE: return IDX_LUMINANCE;
224 case GL_ALPHA: return IDX_ALPHA;
225 case GL_INTENSITY: return IDX_INTENSITY;
226 case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA;
227 case GL_RGB: return IDX_RGB;
228 case GL_RGBA: return IDX_RGBA;
229 case GL_RED: return IDX_RED;
230 case GL_GREEN: return IDX_GREEN;
231 case GL_BLUE: return IDX_BLUE;
232 case GL_BGR: return IDX_BGR;
233 case GL_BGRA: return IDX_BGRA;
234 case GL_ABGR_EXT: return IDX_ABGR;
235 default:
236 _mesa_problem(NULL, "Unexpected inFormat");
237 return 0;
238 }
239 }
240
241
242 /**
243 * When promoting texture formats (see below) we need to compute the
244 * mapping of dest components back to source components.
245 * This function does that.
246 * \param inFormat the incoming format of the texture
247 * \param outFormat the final texture format
248 * \return map[6] a full 6-component map
249 */
250 static void
251 compute_component_mapping(GLenum inFormat, GLenum outFormat,
252 GLubyte *map)
253 {
254 const int inFmt = get_map_idx(inFormat);
255 const int outFmt = get_map_idx(outFormat);
256 const GLubyte *in2rgba = mappings[inFmt].to_rgba;
257 const GLubyte *rgba2out = mappings[outFmt].from_rgba;
258 int i;
259
260 for (i = 0; i < 4; i++)
261 map[i] = in2rgba[rgba2out[i]];
262
263 map[ZERO] = ZERO;
264 map[ONE] = ONE;
265
266 /*
267 _mesa_printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
268 inFormat, _mesa_lookup_enum_by_nr(inFormat),
269 outFormat, _mesa_lookup_enum_by_nr(outFormat),
270 map[0],
271 map[1],
272 map[2],
273 map[3],
274 map[4],
275 map[5]);
276 */
277 }
278
279
280 #if !FEATURE_convolve
281 static void
282 _mesa_adjust_image_for_convolution(GLcontext *ctx, GLuint dims,
283 GLsizei *srcWidth, GLsizei *srcHeight)
284 {
285 /* no-op */
286 }
287 #endif
288
289
290 /**
291 * Make a temporary (color) texture image with GLfloat components.
292 * Apply all needed pixel unpacking and pixel transfer operations.
293 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
294 * Suppose the user specifies GL_LUMINANCE as the internal texture format
295 * but the graphics hardware doesn't support luminance textures. So, might
296 * use an RGB hardware format instead.
297 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
298 *
299 * \param ctx the rendering context
300 * \param dims image dimensions: 1, 2 or 3
301 * \param logicalBaseFormat basic texture derived from the user's
302 * internal texture format value
303 * \param textureBaseFormat the actual basic format of the texture
304 * \param srcWidth source image width
305 * \param srcHeight source image height
306 * \param srcDepth source image depth
307 * \param srcFormat source image format
308 * \param srcType source image type
309 * \param srcAddr source image address
310 * \param srcPacking source image pixel packing
311 * \return resulting image with format = textureBaseFormat and type = GLfloat.
312 */
313 static GLfloat *
314 make_temp_float_image(GLcontext *ctx, GLuint dims,
315 GLenum logicalBaseFormat,
316 GLenum textureBaseFormat,
317 GLint srcWidth, GLint srcHeight, GLint srcDepth,
318 GLenum srcFormat, GLenum srcType,
319 const GLvoid *srcAddr,
320 const struct gl_pixelstore_attrib *srcPacking)
321 {
322 GLuint transferOps = ctx->_ImageTransferState;
323 GLfloat *tempImage;
324
325 ASSERT(dims >= 1 && dims <= 3);
326
327 ASSERT(logicalBaseFormat == GL_RGBA ||
328 logicalBaseFormat == GL_RGB ||
329 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
330 logicalBaseFormat == GL_LUMINANCE ||
331 logicalBaseFormat == GL_ALPHA ||
332 logicalBaseFormat == GL_INTENSITY ||
333 logicalBaseFormat == GL_COLOR_INDEX ||
334 logicalBaseFormat == GL_DEPTH_COMPONENT);
335
336 ASSERT(textureBaseFormat == GL_RGBA ||
337 textureBaseFormat == GL_RGB ||
338 textureBaseFormat == GL_LUMINANCE_ALPHA ||
339 textureBaseFormat == GL_LUMINANCE ||
340 textureBaseFormat == GL_ALPHA ||
341 textureBaseFormat == GL_INTENSITY ||
342 textureBaseFormat == GL_COLOR_INDEX ||
343 textureBaseFormat == GL_DEPTH_COMPONENT);
344
345 /* conventional color image */
346
347 if ((dims == 1 && ctx->Pixel.Convolution1DEnabled) ||
348 (dims >= 2 && ctx->Pixel.Convolution2DEnabled) ||
349 (dims >= 2 && ctx->Pixel.Separable2DEnabled)) {
350 /* need image convolution */
351 const GLuint preConvTransferOps
352 = (transferOps & IMAGE_PRE_CONVOLUTION_BITS) | IMAGE_CLAMP_BIT;
353 const GLuint postConvTransferOps
354 = (transferOps & IMAGE_POST_CONVOLUTION_BITS) | IMAGE_CLAMP_BIT;
355 GLint img, row;
356 GLint convWidth, convHeight;
357 GLfloat *convImage;
358
359 /* pre-convolution image buffer (3D) */
360 tempImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight * srcDepth
361 * 4 * sizeof(GLfloat));
362 if (!tempImage)
363 return NULL;
364
365 /* post-convolution image buffer (2D) */
366 convImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight
367 * 4 * sizeof(GLfloat));
368 if (!convImage) {
369 _mesa_free(tempImage);
370 return NULL;
371 }
372
373 /* loop over 3D image slices */
374 for (img = 0; img < srcDepth; img++) {
375 GLfloat *dst = tempImage + img * (srcWidth * srcHeight * 4);
376
377 /* unpack and do transfer ops up to convolution */
378 for (row = 0; row < srcHeight; row++) {
379 const GLvoid *src = _mesa_image_address(dims, srcPacking,
380 srcAddr, srcWidth, srcHeight,
381 srcFormat, srcType, img, row, 0);
382 _mesa_unpack_color_span_float(ctx, srcWidth, GL_RGBA, dst,
383 srcFormat, srcType, src,
384 srcPacking,
385 preConvTransferOps);
386 dst += srcWidth * 4;
387 }
388
389 /* size after optional convolution */
390 convWidth = srcWidth;
391 convHeight = srcHeight;
392
393 #if FEATURE_convolve
394 /* do convolution */
395 {
396 GLfloat *src = tempImage + img * (srcWidth * srcHeight * 4);
397 if (dims == 1) {
398 ASSERT(ctx->Pixel.Convolution1DEnabled);
399 _mesa_convolve_1d_image(ctx, &convWidth, src, convImage);
400 }
401 else {
402 if (ctx->Pixel.Convolution2DEnabled) {
403 _mesa_convolve_2d_image(ctx, &convWidth, &convHeight,
404 src, convImage);
405 }
406 else {
407 ASSERT(ctx->Pixel.Separable2DEnabled);
408 _mesa_convolve_sep_image(ctx, &convWidth, &convHeight,
409 src, convImage);
410 }
411 }
412 }
413 #endif
414 /* do post-convolution transfer and pack into tempImage */
415 {
416 const GLint logComponents
417 = _mesa_components_in_format(logicalBaseFormat);
418 const GLfloat *src = convImage;
419 GLfloat *dst = tempImage + img * (convWidth * convHeight * 4);
420 for (row = 0; row < convHeight; row++) {
421 _mesa_pack_rgba_span_float(ctx, convWidth,
422 (GLfloat (*)[4]) src,
423 logicalBaseFormat, GL_FLOAT,
424 dst, &ctx->DefaultPacking,
425 postConvTransferOps);
426 src += convWidth * 4;
427 dst += convWidth * logComponents;
428 }
429 }
430 } /* loop over 3D image slices */
431
432 _mesa_free(convImage);
433
434 /* might need these below */
435 srcWidth = convWidth;
436 srcHeight = convHeight;
437 }
438 else {
439 /* no convolution */
440 const GLint components = _mesa_components_in_format(logicalBaseFormat);
441 const GLint srcStride =
442 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
443 GLfloat *dst;
444 GLint img, row;
445
446 tempImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight * srcDepth
447 * components * sizeof(GLfloat));
448 if (!tempImage)
449 return NULL;
450
451 dst = tempImage;
452 for (img = 0; img < srcDepth; img++) {
453 const GLubyte *src
454 = (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
455 srcWidth, srcHeight,
456 srcFormat, srcType,
457 img, 0, 0);
458 for (row = 0; row < srcHeight; row++) {
459 _mesa_unpack_color_span_float(ctx, srcWidth, logicalBaseFormat,
460 dst, srcFormat, srcType, src,
461 srcPacking, transferOps);
462 dst += srcWidth * components;
463 src += srcStride;
464 }
465 }
466 }
467
468 if (logicalBaseFormat != textureBaseFormat) {
469 /* more work */
470 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
471 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
472 GLfloat *newImage;
473 GLint i, n;
474 GLubyte map[6];
475
476 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
477 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
478 textureBaseFormat == GL_LUMINANCE_ALPHA);
479
480 /* The actual texture format should have at least as many components
481 * as the logical texture format.
482 */
483 ASSERT(texComponents >= logComponents);
484
485 newImage = (GLfloat *) _mesa_malloc(srcWidth * srcHeight * srcDepth
486 * texComponents * sizeof(GLfloat));
487 if (!newImage) {
488 _mesa_free(tempImage);
489 return NULL;
490 }
491
492 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
493
494 n = srcWidth * srcHeight * srcDepth;
495 for (i = 0; i < n; i++) {
496 GLint k;
497 for (k = 0; k < texComponents; k++) {
498 GLint j = map[k];
499 if (j == ZERO)
500 newImage[i * texComponents + k] = 0.0F;
501 else if (j == ONE)
502 newImage[i * texComponents + k] = 1.0F;
503 else
504 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
505 }
506 }
507
508 _mesa_free(tempImage);
509 tempImage = newImage;
510 }
511
512 return tempImage;
513 }
514
515
516 /**
517 * Make a temporary (color) texture image with GLchan components.
518 * Apply all needed pixel unpacking and pixel transfer operations.
519 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
520 * Suppose the user specifies GL_LUMINANCE as the internal texture format
521 * but the graphics hardware doesn't support luminance textures. So, might
522 * use an RGB hardware format instead.
523 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
524 *
525 * \param ctx the rendering context
526 * \param dims image dimensions: 1, 2 or 3
527 * \param logicalBaseFormat basic texture derived from the user's
528 * internal texture format value
529 * \param textureBaseFormat the actual basic format of the texture
530 * \param srcWidth source image width
531 * \param srcHeight source image height
532 * \param srcDepth source image depth
533 * \param srcFormat source image format
534 * \param srcType source image type
535 * \param srcAddr source image address
536 * \param srcPacking source image pixel packing
537 * \return resulting image with format = textureBaseFormat and type = GLchan.
538 */
539 GLchan *
540 _mesa_make_temp_chan_image(GLcontext *ctx, GLuint dims,
541 GLenum logicalBaseFormat,
542 GLenum textureBaseFormat,
543 GLint srcWidth, GLint srcHeight, GLint srcDepth,
544 GLenum srcFormat, GLenum srcType,
545 const GLvoid *srcAddr,
546 const struct gl_pixelstore_attrib *srcPacking)
547 {
548 GLuint transferOps = ctx->_ImageTransferState;
549 const GLint components = _mesa_components_in_format(logicalBaseFormat);
550 GLboolean freeSrcImage = GL_FALSE;
551 GLint img, row;
552 GLchan *tempImage, *dst;
553
554 ASSERT(dims >= 1 && dims <= 3);
555
556 ASSERT(logicalBaseFormat == GL_RGBA ||
557 logicalBaseFormat == GL_RGB ||
558 logicalBaseFormat == GL_LUMINANCE_ALPHA ||
559 logicalBaseFormat == GL_LUMINANCE ||
560 logicalBaseFormat == GL_ALPHA ||
561 logicalBaseFormat == GL_INTENSITY);
562
563 ASSERT(textureBaseFormat == GL_RGBA ||
564 textureBaseFormat == GL_RGB ||
565 textureBaseFormat == GL_LUMINANCE_ALPHA ||
566 textureBaseFormat == GL_LUMINANCE ||
567 textureBaseFormat == GL_ALPHA ||
568 textureBaseFormat == GL_INTENSITY);
569
570 #if FEATURE_convolve
571 if ((dims == 1 && ctx->Pixel.Convolution1DEnabled) ||
572 (dims >= 2 && ctx->Pixel.Convolution2DEnabled) ||
573 (dims >= 2 && ctx->Pixel.Separable2DEnabled)) {
574 /* get convolved image */
575 GLfloat *convImage = make_temp_float_image(ctx, dims,
576 logicalBaseFormat,
577 logicalBaseFormat,
578 srcWidth, srcHeight, srcDepth,
579 srcFormat, srcType,
580 srcAddr, srcPacking);
581 if (!convImage)
582 return NULL;
583 /* the convolved image is our new source image */
584 srcAddr = convImage;
585 srcFormat = logicalBaseFormat;
586 srcType = GL_FLOAT;
587 srcPacking = &ctx->DefaultPacking;
588 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
589 transferOps = 0;
590 freeSrcImage = GL_TRUE;
591 }
592 #endif
593
594 /* unpack and transfer the source image */
595 tempImage = (GLchan *) _mesa_malloc(srcWidth * srcHeight * srcDepth
596 * components * sizeof(GLchan));
597 if (!tempImage)
598 return NULL;
599
600 dst = tempImage;
601 for (img = 0; img < srcDepth; img++) {
602 const GLint srcStride =
603 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
604 const GLubyte *src =
605 (const GLubyte *) _mesa_image_address(dims, srcPacking, srcAddr,
606 srcWidth, srcHeight,
607 srcFormat, srcType,
608 img, 0, 0);
609 for (row = 0; row < srcHeight; row++) {
610 _mesa_unpack_color_span_chan(ctx, srcWidth, logicalBaseFormat, dst,
611 srcFormat, srcType, src, srcPacking,
612 transferOps);
613 dst += srcWidth * components;
614 src += srcStride;
615 }
616 }
617
618 /* If we made a temporary image for convolution, free it here */
619 if (freeSrcImage) {
620 _mesa_free((void *) srcAddr);
621 }
622
623 if (logicalBaseFormat != textureBaseFormat) {
624 /* one more conversion step */
625 GLint texComponents = _mesa_components_in_format(textureBaseFormat);
626 GLint logComponents = _mesa_components_in_format(logicalBaseFormat);
627 GLchan *newImage;
628 GLint i, n;
629 GLubyte map[6];
630
631 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
632 ASSERT(textureBaseFormat == GL_RGB || textureBaseFormat == GL_RGBA ||
633 textureBaseFormat == GL_LUMINANCE_ALPHA);
634
635 /* The actual texture format should have at least as many components
636 * as the logical texture format.
637 */
638 ASSERT(texComponents >= logComponents);
639
640 newImage = (GLchan *) _mesa_malloc(srcWidth * srcHeight * srcDepth
641 * texComponents * sizeof(GLchan));
642 if (!newImage) {
643 _mesa_free(tempImage);
644 return NULL;
645 }
646
647 compute_component_mapping(logicalBaseFormat, textureBaseFormat, map);
648
649 n = srcWidth * srcHeight * srcDepth;
650 for (i = 0; i < n; i++) {
651 GLint k;
652 for (k = 0; k < texComponents; k++) {
653 GLint j = map[k];
654 if (j == ZERO)
655 newImage[i * texComponents + k] = 0;
656 else if (j == ONE)
657 newImage[i * texComponents + k] = CHAN_MAX;
658 else
659 newImage[i * texComponents + k] = tempImage[i * logComponents + j];
660 }
661 }
662
663 _mesa_free(tempImage);
664 tempImage = newImage;
665 }
666
667 return tempImage;
668 }
669
670
671 /**
672 * Copy GLubyte pixels from <src> to <dst> with swizzling.
673 * \param dst destination pixels
674 * \param dstComponents number of color components in destination pixels
675 * \param src source pixels
676 * \param srcComponents number of color components in source pixels
677 * \param map the swizzle mapping. map[X] says where to find the X component
678 * in the source image's pixels. For example, if the source image
679 * is GL_BGRA and X = red, map[0] yields 2.
680 * \param count number of pixels to copy/swizzle.
681 */
682 static void
683 swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src,
684 GLuint srcComponents, const GLubyte *map, GLuint count)
685 {
686 #define SWZ_CPY(dst, src, count, dstComps, srcComps) \
687 do { \
688 GLuint i; \
689 for (i = 0; i < count; i++) { \
690 GLuint j; \
691 if (srcComps == 4) { \
692 COPY_4UBV(tmp, src); \
693 } \
694 else { \
695 for (j = 0; j < srcComps; j++) { \
696 tmp[j] = src[j]; \
697 } \
698 } \
699 src += srcComps; \
700 for (j = 0; j < dstComps; j++) { \
701 dst[j] = tmp[map[j]]; \
702 } \
703 dst += dstComps; \
704 } \
705 } while (0)
706
707 GLubyte tmp[6];
708
709 tmp[ZERO] = 0x0;
710 tmp[ONE] = 0xff;
711
712 ASSERT(srcComponents <= 4);
713 ASSERT(dstComponents <= 4);
714
715 switch (dstComponents) {
716 case 4:
717 switch (srcComponents) {
718 case 4:
719 SWZ_CPY(dst, src, count, 4, 4);
720 break;
721 case 3:
722 SWZ_CPY(dst, src, count, 4, 3);
723 break;
724 case 2:
725 SWZ_CPY(dst, src, count, 4, 2);
726 break;
727 case 1:
728 SWZ_CPY(dst, src, count, 4, 1);
729 break;
730 default:
731 ;
732 }
733 break;
734 case 3:
735 switch (srcComponents) {
736 case 4:
737 SWZ_CPY(dst, src, count, 3, 4);
738 break;
739 case 3:
740 SWZ_CPY(dst, src, count, 3, 3);
741 break;
742 case 2:
743 SWZ_CPY(dst, src, count, 3, 2);
744 break;
745 case 1:
746 SWZ_CPY(dst, src, count, 3, 1);
747 break;
748 default:
749 ;
750 }
751 break;
752 case 2:
753 switch (srcComponents) {
754 case 4:
755 SWZ_CPY(dst, src, count, 2, 4);
756 break;
757 case 3:
758 SWZ_CPY(dst, src, count, 2, 3);
759 break;
760 case 2:
761 SWZ_CPY(dst, src, count, 2, 2);
762 break;
763 case 1:
764 SWZ_CPY(dst, src, count, 2, 1);
765 break;
766 default:
767 ;
768 }
769 break;
770 case 1:
771 switch (srcComponents) {
772 case 4:
773 SWZ_CPY(dst, src, count, 1, 4);
774 break;
775 case 3:
776 SWZ_CPY(dst, src, count, 1, 3);
777 break;
778 case 2:
779 SWZ_CPY(dst, src, count, 1, 2);
780 break;
781 case 1:
782 SWZ_CPY(dst, src, count, 1, 1);
783 break;
784 default:
785 ;
786 }
787 break;
788 default:
789 ;
790 }
791 #undef SWZ_CPY
792 }
793
794
795
796 static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE };
797 static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE };
798
799 /* Deal with the _REV input types:
800 */
801 static const GLubyte *
802 type_mapping( GLenum srcType )
803 {
804 switch (srcType) {
805 case GL_BYTE:
806 case GL_UNSIGNED_BYTE:
807 return map_identity;
808 case GL_UNSIGNED_INT_8_8_8_8:
809 return _mesa_little_endian() ? map_3210 : map_identity;
810 case GL_UNSIGNED_INT_8_8_8_8_REV:
811 return _mesa_little_endian() ? map_identity : map_3210;
812 default:
813 return NULL;
814 }
815 }
816
817 /* Mapping required if input type is
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(GLcontext *ctx,
845 GLuint dimensions,
846 GLenum srcFormat,
847 GLenum srcType,
848
849 GLenum baseInternalFormat,
850
851 const GLubyte *rgba2dst,
852 GLuint dstComponents,
853
854 GLvoid *dstAddr,
855 GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
856 GLint dstRowStride,
857 const GLuint *dstImageOffsets,
858
859 GLint srcWidth, GLint srcHeight, GLint srcDepth,
860 const GLvoid *srcAddr,
861 const struct gl_pixelstore_attrib *srcPacking )
862 {
863 GLint srcComponents = _mesa_components_in_format(srcFormat);
864 const GLubyte *srctype2ubyte, *swap;
865 GLubyte map[4], src2base[6], base2rgba[6];
866 GLint i;
867 const GLint srcRowStride =
868 _mesa_image_row_stride(srcPacking, srcWidth,
869 srcFormat, GL_UNSIGNED_BYTE);
870 const GLint srcImageStride
871 = _mesa_image_image_stride(srcPacking, srcWidth, srcHeight, srcFormat,
872 GL_UNSIGNED_BYTE);
873 const GLubyte *srcImage
874 = (const GLubyte *) _mesa_image_address(dimensions, srcPacking, srcAddr,
875 srcWidth, srcHeight, srcFormat,
876 GL_UNSIGNED_BYTE, 0, 0, 0);
877
878 (void) ctx;
879
880 /* Translate from src->baseInternal->GL_RGBA->dst. This will
881 * correctly deal with RGBA->RGB->RGBA conversions where the final
882 * A value must be 0xff regardless of the incoming alpha values.
883 */
884 compute_component_mapping(srcFormat, baseInternalFormat, src2base);
885 compute_component_mapping(baseInternalFormat, GL_RGBA, base2rgba);
886 swap = byteswap_mapping(srcPacking->SwapBytes, srcType);
887 srctype2ubyte = type_mapping(srcType);
888
889
890 for (i = 0; i < 4; i++)
891 map[i] = srctype2ubyte[swap[src2base[base2rgba[rgba2dst[i]]]]];
892
893 /* _mesa_printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
894
895 if (srcComponents == dstComponents &&
896 srcRowStride == dstRowStride &&
897 srcRowStride == srcWidth * srcComponents &&
898 dimensions < 3) {
899 /* 1 and 2D images only */
900 GLubyte *dstImage = (GLubyte *) dstAddr
901 + dstYoffset * dstRowStride
902 + dstXoffset * dstComponents;
903 swizzle_copy(dstImage, dstComponents, srcImage, srcComponents, map,
904 srcWidth * srcHeight);
905 }
906 else {
907 GLint img, row;
908 for (img = 0; img < srcDepth; img++) {
909 const GLubyte *srcRow = srcImage;
910 GLubyte *dstRow = (GLubyte *) dstAddr
911 + dstImageOffsets[dstZoffset + img] * dstComponents
912 + dstYoffset * dstRowStride
913 + dstXoffset * dstComponents;
914 for (row = 0; row < srcHeight; row++) {
915 swizzle_copy(dstRow, dstComponents, srcRow, srcComponents, map, srcWidth);
916 dstRow += dstRowStride;
917 srcRow += srcRowStride;
918 }
919 srcImage += srcImageStride;
920 }
921 }
922 }
923
924
925 /**
926 * Teximage storage routine for when a simple memcpy will do.
927 * No pixel transfer operations or special texel encodings allowed.
928 * 1D, 2D and 3D images supported.
929 */
930 static void
931 memcpy_texture(GLcontext *ctx,
932 GLuint dimensions,
933 gl_format dstFormat,
934 GLvoid *dstAddr,
935 GLint dstXoffset, GLint dstYoffset, GLint dstZoffset,
936 GLint dstRowStride,
937 const GLuint *dstImageOffsets,
938 GLint srcWidth, GLint srcHeight, GLint srcDepth,
939 GLenum srcFormat, GLenum srcType,
940 const GLvoid *srcAddr,
941 const struct gl_pixelstore_attrib *srcPacking)
942 {
943 const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth,
944 srcFormat, srcType);
945 const GLint srcImageStride = _mesa_image_image_stride(srcPacking,
946 srcWidth, srcHeight, srcFormat, srcType);
947 const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dimensions,
948 srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0);
949 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
950 const GLint bytesPerRow = srcWidth * texelBytes;
951
952 #if 0
953 /* XXX update/re-enable for dstImageOffsets array */
954 const GLint bytesPerImage = srcHeight * bytesPerRow;
955 const GLint bytesPerTexture = srcDepth * bytesPerImage;
956 GLubyte *dstImage = (GLubyte *) dstAddr
957 + dstZoffset * dstImageStride
958 + dstYoffset * dstRowStride
959 + dstXoffset * texelBytes;
960
961 if (dstRowStride == srcRowStride &&
962 dstRowStride == bytesPerRow &&
963 ((dstImageStride == srcImageStride &&
964 dstImageStride == bytesPerImage) ||
965 (srcDepth == 1))) {
966 /* one big memcpy */
967 ctx->Driver.TextureMemCpy(dstImage, srcImage, bytesPerTexture);
968 }
969 else
970 {
971 GLint img, row;
972 for (img = 0; img < srcDepth; img++) {
973 const GLubyte *srcRow = srcImage;
974 GLubyte *dstRow = dstImage;
975 for (row = 0; row < srcHeight; row++) {
976 ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow);
977 dstRow += dstRowStride;
978 srcRow += srcRowStride;
979 }
980 srcImage += srcImageStride;
981 dstImage += dstImageStride;
982 }
983 }
984 #endif
985
986 GLint img, row;
987 for (img = 0; img < srcDepth; img++) {
988 const GLubyte *srcRow = srcImage;
989 GLubyte *dstRow = (GLubyte *) dstAddr
990 + dstImageOffsets[dstZoffset + img] * texelBytes
991 + dstYoffset * dstRowStride
992 + dstXoffset * texelBytes;
993 for (row = 0; row < srcHeight; row++) {
994 ctx->Driver.TextureMemCpy(dstRow, srcRow, bytesPerRow);
995 dstRow += dstRowStride;
996 srcRow += srcRowStride;
997 }
998 srcImage += srcImageStride;
999 }
1000 }
1001
1002
1003
1004 /**
1005 * Store a 32-bit integer depth component texture image.
1006 */
1007 static GLboolean
1008 _mesa_texstore_z32(TEXSTORE_PARAMS)
1009 {
1010 const GLuint depthScale = 0xffffffff;
1011 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1012 (void) dims;
1013 ASSERT(dstFormat == MESA_FORMAT_Z32);
1014 ASSERT(texelBytes == sizeof(GLuint));
1015
1016 if (ctx->Pixel.DepthScale == 1.0f &&
1017 ctx->Pixel.DepthBias == 0.0f &&
1018 !srcPacking->SwapBytes &&
1019 baseInternalFormat == GL_DEPTH_COMPONENT &&
1020 srcFormat == GL_DEPTH_COMPONENT &&
1021 srcType == GL_UNSIGNED_INT) {
1022 /* simple memcpy path */
1023 memcpy_texture(ctx, dims,
1024 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1025 dstRowStride,
1026 dstImageOffsets,
1027 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1028 srcAddr, srcPacking);
1029 }
1030 else {
1031 /* general path */
1032 GLint img, row;
1033 for (img = 0; img < srcDepth; img++) {
1034 GLubyte *dstRow = (GLubyte *) dstAddr
1035 + dstImageOffsets[dstZoffset + img] * texelBytes
1036 + dstYoffset * dstRowStride
1037 + dstXoffset * texelBytes;
1038 for (row = 0; row < srcHeight; row++) {
1039 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1040 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1041 _mesa_unpack_depth_span(ctx, srcWidth,
1042 GL_UNSIGNED_INT, (GLuint *) dstRow,
1043 depthScale, srcType, src, srcPacking);
1044 dstRow += dstRowStride;
1045 }
1046 }
1047 }
1048 return GL_TRUE;
1049 }
1050
1051 #define STRIDE_3D 0
1052
1053 /**
1054 * Store a 16-bit integer depth component texture image.
1055 */
1056 static GLboolean
1057 _mesa_texstore_z16(TEXSTORE_PARAMS)
1058 {
1059 const GLuint depthScale = 0xffff;
1060 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1061 (void) dims;
1062 ASSERT(dstFormat == MESA_FORMAT_Z16);
1063 ASSERT(texelBytes == sizeof(GLushort));
1064
1065 if (ctx->Pixel.DepthScale == 1.0f &&
1066 ctx->Pixel.DepthBias == 0.0f &&
1067 !srcPacking->SwapBytes &&
1068 baseInternalFormat == GL_DEPTH_COMPONENT &&
1069 srcFormat == GL_DEPTH_COMPONENT &&
1070 srcType == GL_UNSIGNED_SHORT) {
1071 /* simple memcpy path */
1072 memcpy_texture(ctx, dims,
1073 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1074 dstRowStride,
1075 dstImageOffsets,
1076 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1077 srcAddr, srcPacking);
1078 }
1079 else {
1080 /* general path */
1081 GLint img, row;
1082 for (img = 0; img < srcDepth; img++) {
1083 GLubyte *dstRow = (GLubyte *) dstAddr
1084 + dstImageOffsets[dstZoffset + img] * texelBytes
1085 + dstYoffset * dstRowStride
1086 + dstXoffset * texelBytes;
1087 for (row = 0; row < srcHeight; row++) {
1088 const GLvoid *src = _mesa_image_address(dims, srcPacking,
1089 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
1090 GLushort *dst16 = (GLushort *) dstRow;
1091 _mesa_unpack_depth_span(ctx, srcWidth,
1092 GL_UNSIGNED_SHORT, dst16, depthScale,
1093 srcType, src, srcPacking);
1094 dstRow += dstRowStride;
1095 }
1096 }
1097 }
1098 return GL_TRUE;
1099 }
1100
1101
1102 /**
1103 * Store an rgb565 or rgb565_rev texture image.
1104 */
1105 static GLboolean
1106 _mesa_texstore_rgb565(TEXSTORE_PARAMS)
1107 {
1108 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1109 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1110
1111 ASSERT(dstFormat == MESA_FORMAT_RGB565 ||
1112 dstFormat == MESA_FORMAT_RGB565_REV);
1113 ASSERT(texelBytes == 2);
1114
1115 if (!ctx->_ImageTransferState &&
1116 !srcPacking->SwapBytes &&
1117 dstFormat == MESA_FORMAT_RGB565 &&
1118 baseInternalFormat == GL_RGB &&
1119 srcFormat == GL_RGB &&
1120 srcType == GL_UNSIGNED_SHORT_5_6_5) {
1121 /* simple memcpy path */
1122 memcpy_texture(ctx, dims,
1123 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1124 dstRowStride,
1125 dstImageOffsets,
1126 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1127 srcAddr, srcPacking);
1128 }
1129 else if (!ctx->_ImageTransferState &&
1130 !srcPacking->SwapBytes &&
1131 baseInternalFormat == GL_RGB &&
1132 srcFormat == GL_RGB &&
1133 srcType == GL_UNSIGNED_BYTE &&
1134 dims == 2) {
1135 /* do optimized tex store */
1136 const GLint srcRowStride =
1137 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1138 const GLubyte *src = (const GLubyte *)
1139 _mesa_image_address(dims, srcPacking, srcAddr, srcWidth, srcHeight,
1140 srcFormat, srcType, 0, 0, 0);
1141 GLubyte *dst = (GLubyte *) dstAddr
1142 + dstYoffset * dstRowStride
1143 + dstXoffset * texelBytes;
1144 GLint row, col;
1145 for (row = 0; row < srcHeight; row++) {
1146 const GLubyte *srcUB = (const GLubyte *) src;
1147 GLushort *dstUS = (GLushort *) dst;
1148 /* check for byteswapped format */
1149 if (dstFormat == MESA_FORMAT_RGB565) {
1150 for (col = 0; col < srcWidth; col++) {
1151 dstUS[col] = PACK_COLOR_565( srcUB[0], srcUB[1], srcUB[2] );
1152 srcUB += 3;
1153 }
1154 }
1155 else {
1156 for (col = 0; col < srcWidth; col++) {
1157 dstUS[col] = PACK_COLOR_565_REV( srcUB[0], srcUB[1], srcUB[2] );
1158 srcUB += 3;
1159 }
1160 }
1161 dst += dstRowStride;
1162 src += srcRowStride;
1163 }
1164 }
1165 else {
1166 /* general path */
1167 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1168 baseInternalFormat,
1169 baseFormat,
1170 srcWidth, srcHeight, srcDepth,
1171 srcFormat, srcType, srcAddr,
1172 srcPacking);
1173 const GLchan *src = tempImage;
1174 GLint img, row, col;
1175 if (!tempImage)
1176 return GL_FALSE;
1177 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1178 for (img = 0; img < srcDepth; img++) {
1179 GLubyte *dstRow = (GLubyte *) dstAddr
1180 + dstImageOffsets[dstZoffset + img] * texelBytes
1181 + dstYoffset * dstRowStride
1182 + dstXoffset * texelBytes;
1183 for (row = 0; row < srcHeight; row++) {
1184 GLushort *dstUS = (GLushort *) dstRow;
1185 /* check for byteswapped format */
1186 if (dstFormat == MESA_FORMAT_RGB565) {
1187 for (col = 0; col < srcWidth; col++) {
1188 dstUS[col] = PACK_COLOR_565( CHAN_TO_UBYTE(src[RCOMP]),
1189 CHAN_TO_UBYTE(src[GCOMP]),
1190 CHAN_TO_UBYTE(src[BCOMP]) );
1191 src += 3;
1192 }
1193 }
1194 else {
1195 for (col = 0; col < srcWidth; col++) {
1196 dstUS[col] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src[RCOMP]),
1197 CHAN_TO_UBYTE(src[GCOMP]),
1198 CHAN_TO_UBYTE(src[BCOMP]) );
1199 src += 3;
1200 }
1201 }
1202 dstRow += dstRowStride;
1203 }
1204 }
1205 _mesa_free((void *) tempImage);
1206 }
1207 return GL_TRUE;
1208 }
1209
1210
1211 /**
1212 * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
1213 */
1214 static GLboolean
1215 _mesa_texstore_rgba8888(TEXSTORE_PARAMS)
1216 {
1217 const GLboolean littleEndian = _mesa_little_endian();
1218 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1219 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1220
1221 ASSERT(dstFormat == MESA_FORMAT_RGBA8888 ||
1222 dstFormat == MESA_FORMAT_RGBA8888_REV);
1223 ASSERT(texelBytes == 4);
1224
1225 if (!ctx->_ImageTransferState &&
1226 !srcPacking->SwapBytes &&
1227 dstFormat == MESA_FORMAT_RGBA8888 &&
1228 baseInternalFormat == GL_RGBA &&
1229 ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
1230 (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
1231 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
1232 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && littleEndian))) {
1233 /* simple memcpy path */
1234 memcpy_texture(ctx, dims,
1235 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1236 dstRowStride,
1237 dstImageOffsets,
1238 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1239 srcAddr, srcPacking);
1240 }
1241 else if (!ctx->_ImageTransferState &&
1242 !srcPacking->SwapBytes &&
1243 dstFormat == MESA_FORMAT_RGBA8888_REV &&
1244 baseInternalFormat == GL_RGBA &&
1245 ((srcFormat == GL_RGBA && srcType == GL_UNSIGNED_INT_8_8_8_8_REV) ||
1246 (srcFormat == GL_RGBA && srcType == GL_UNSIGNED_BYTE && littleEndian) ||
1247 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_INT_8_8_8_8) ||
1248 (srcFormat == GL_ABGR_EXT && srcType == GL_UNSIGNED_BYTE && !littleEndian))) {
1249 /* simple memcpy path */
1250 memcpy_texture(ctx, dims,
1251 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1252 dstRowStride,
1253 dstImageOffsets,
1254 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1255 srcAddr, srcPacking);
1256 }
1257 else if (!ctx->_ImageTransferState &&
1258 (srcType == GL_UNSIGNED_BYTE ||
1259 srcType == GL_UNSIGNED_INT_8_8_8_8 ||
1260 srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
1261 can_swizzle(baseInternalFormat) &&
1262 can_swizzle(srcFormat)) {
1263
1264 GLubyte dstmap[4];
1265
1266 /* dstmap - how to swizzle from RGBA to dst format:
1267 */
1268 if ((littleEndian && dstFormat == MESA_FORMAT_RGBA8888) ||
1269 (!littleEndian && dstFormat == MESA_FORMAT_RGBA8888_REV)) {
1270 dstmap[3] = 0;
1271 dstmap[2] = 1;
1272 dstmap[1] = 2;
1273 dstmap[0] = 3;
1274 }
1275 else {
1276 dstmap[3] = 3;
1277 dstmap[2] = 2;
1278 dstmap[1] = 1;
1279 dstmap[0] = 0;
1280 }
1281
1282 _mesa_swizzle_ubyte_image(ctx, dims,
1283 srcFormat,
1284 srcType,
1285 baseInternalFormat,
1286 dstmap, 4,
1287 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1288 dstRowStride, dstImageOffsets,
1289 srcWidth, srcHeight, srcDepth, srcAddr,
1290 srcPacking);
1291 }
1292 else {
1293 /* general path */
1294 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1295 baseInternalFormat,
1296 baseFormat,
1297 srcWidth, srcHeight, srcDepth,
1298 srcFormat, srcType, srcAddr,
1299 srcPacking);
1300 const GLchan *src = tempImage;
1301 GLint img, row, col;
1302 if (!tempImage)
1303 return GL_FALSE;
1304 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1305 for (img = 0; img < srcDepth; img++) {
1306 GLubyte *dstRow = (GLubyte *) dstAddr
1307 + dstImageOffsets[dstZoffset + img] * texelBytes
1308 + dstYoffset * dstRowStride
1309 + dstXoffset * texelBytes;
1310 for (row = 0; row < srcHeight; row++) {
1311 GLuint *dstUI = (GLuint *) dstRow;
1312 if (dstFormat == MESA_FORMAT_RGBA8888) {
1313 for (col = 0; col < srcWidth; col++) {
1314 dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[RCOMP]),
1315 CHAN_TO_UBYTE(src[GCOMP]),
1316 CHAN_TO_UBYTE(src[BCOMP]),
1317 CHAN_TO_UBYTE(src[ACOMP]) );
1318 src += 4;
1319 }
1320 }
1321 else {
1322 for (col = 0; col < srcWidth; col++) {
1323 dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[RCOMP]),
1324 CHAN_TO_UBYTE(src[GCOMP]),
1325 CHAN_TO_UBYTE(src[BCOMP]),
1326 CHAN_TO_UBYTE(src[ACOMP]) );
1327 src += 4;
1328 }
1329 }
1330 dstRow += dstRowStride;
1331 }
1332 }
1333 _mesa_free((void *) tempImage);
1334 }
1335 return GL_TRUE;
1336 }
1337
1338
1339 static GLboolean
1340 _mesa_texstore_argb8888(TEXSTORE_PARAMS)
1341 {
1342 const GLboolean littleEndian = _mesa_little_endian();
1343 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1344 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1345
1346 ASSERT(dstFormat == MESA_FORMAT_ARGB8888 ||
1347 dstFormat == MESA_FORMAT_ARGB8888_REV);
1348 ASSERT(texelBytes == 4);
1349
1350 if (!ctx->_ImageTransferState &&
1351 !srcPacking->SwapBytes &&
1352 dstFormat == MESA_FORMAT_ARGB8888 &&
1353 baseInternalFormat == GL_RGBA &&
1354 srcFormat == GL_BGRA &&
1355 ((srcType == GL_UNSIGNED_BYTE && littleEndian) ||
1356 srcType == GL_UNSIGNED_INT_8_8_8_8_REV)) {
1357 /* simple memcpy path (little endian) */
1358 memcpy_texture(ctx, dims,
1359 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1360 dstRowStride,
1361 dstImageOffsets,
1362 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1363 srcAddr, srcPacking);
1364 }
1365 else if (!ctx->_ImageTransferState &&
1366 !srcPacking->SwapBytes &&
1367 dstFormat == MESA_FORMAT_ARGB8888_REV &&
1368 baseInternalFormat == GL_RGBA &&
1369 srcFormat == GL_BGRA &&
1370 ((srcType == GL_UNSIGNED_BYTE && !littleEndian) ||
1371 srcType == GL_UNSIGNED_INT_8_8_8_8)) {
1372 /* simple memcpy path (big endian) */
1373 memcpy_texture(ctx, dims,
1374 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1375 dstRowStride,
1376 dstImageOffsets,
1377 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1378 srcAddr, srcPacking);
1379 }
1380 else if (!ctx->_ImageTransferState &&
1381 !srcPacking->SwapBytes &&
1382 dstFormat == MESA_FORMAT_ARGB8888 &&
1383 srcFormat == GL_RGB &&
1384 (baseInternalFormat == GL_RGBA ||
1385 baseInternalFormat == GL_RGB) &&
1386 srcType == GL_UNSIGNED_BYTE) {
1387 int img, row, col;
1388 for (img = 0; img < srcDepth; img++) {
1389 const GLint srcRowStride =
1390 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1391 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1392 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1393 GLubyte *dstRow = (GLubyte *) dstAddr
1394 + dstImageOffsets[dstZoffset + img] * texelBytes
1395 + dstYoffset * dstRowStride
1396 + dstXoffset * texelBytes;
1397 for (row = 0; row < srcHeight; row++) {
1398 GLuint *d4 = (GLuint *) dstRow;
1399 for (col = 0; col < srcWidth; col++) {
1400 d4[col] = PACK_COLOR_8888(0xff,
1401 srcRow[col * 3 + RCOMP],
1402 srcRow[col * 3 + GCOMP],
1403 srcRow[col * 3 + BCOMP]);
1404 }
1405 dstRow += dstRowStride;
1406 srcRow += srcRowStride;
1407 }
1408 }
1409 }
1410 else if (!ctx->_ImageTransferState &&
1411 !srcPacking->SwapBytes &&
1412 dstFormat == MESA_FORMAT_ARGB8888 &&
1413 srcFormat == GL_RGBA &&
1414 baseInternalFormat == GL_RGBA &&
1415 srcType == GL_UNSIGNED_BYTE) {
1416 /* same as above case, but src data has alpha too */
1417 GLint img, row, col;
1418 /* For some reason, streaming copies to write-combined regions
1419 * are extremely sensitive to the characteristics of how the
1420 * source data is retrieved. By reordering the source reads to
1421 * be in-order, the speed of this operation increases by half.
1422 * Strangely the same isn't required for the RGB path, above.
1423 */
1424 for (img = 0; img < srcDepth; img++) {
1425 const GLint srcRowStride =
1426 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1427 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1428 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1429 GLubyte *dstRow = (GLubyte *) dstAddr
1430 + dstImageOffsets[dstZoffset + img] * texelBytes
1431 + dstYoffset * dstRowStride
1432 + dstXoffset * texelBytes;
1433 for (row = 0; row < srcHeight; row++) {
1434 GLuint *d4 = (GLuint *) dstRow;
1435 for (col = 0; col < srcWidth; col++) {
1436 d4[col] = PACK_COLOR_8888(srcRow[col * 4 + ACOMP],
1437 srcRow[col * 4 + RCOMP],
1438 srcRow[col * 4 + GCOMP],
1439 srcRow[col * 4 + BCOMP]);
1440 }
1441 dstRow += dstRowStride;
1442 srcRow += srcRowStride;
1443 }
1444 }
1445 }
1446 else if (!ctx->_ImageTransferState &&
1447 (srcType == GL_UNSIGNED_BYTE ||
1448 srcType == GL_UNSIGNED_INT_8_8_8_8 ||
1449 srcType == GL_UNSIGNED_INT_8_8_8_8_REV) &&
1450 can_swizzle(baseInternalFormat) &&
1451 can_swizzle(srcFormat)) {
1452
1453 GLubyte dstmap[4];
1454
1455 /* dstmap - how to swizzle from RGBA to dst format:
1456 */
1457 if ((littleEndian && dstFormat == MESA_FORMAT_ARGB8888) ||
1458 (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV)) {
1459 dstmap[3] = 3; /* alpha */
1460 dstmap[2] = 0; /* red */
1461 dstmap[1] = 1; /* green */
1462 dstmap[0] = 2; /* blue */
1463 }
1464 else {
1465 assert((littleEndian && dstFormat == MESA_FORMAT_ARGB8888_REV) ||
1466 (!littleEndian && dstFormat == MESA_FORMAT_ARGB8888));
1467 dstmap[3] = 2;
1468 dstmap[2] = 1;
1469 dstmap[1] = 0;
1470 dstmap[0] = 3;
1471 }
1472
1473 _mesa_swizzle_ubyte_image(ctx, dims,
1474 srcFormat,
1475 srcType,
1476
1477 baseInternalFormat,
1478 dstmap, 4,
1479 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1480 dstRowStride,
1481 dstImageOffsets,
1482 srcWidth, srcHeight, srcDepth, srcAddr,
1483 srcPacking);
1484 }
1485 else {
1486 /* general path */
1487 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1488 baseInternalFormat,
1489 baseFormat,
1490 srcWidth, srcHeight, srcDepth,
1491 srcFormat, srcType, srcAddr,
1492 srcPacking);
1493 const GLchan *src = tempImage;
1494 GLint img, row, col;
1495 if (!tempImage)
1496 return GL_FALSE;
1497 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1498 for (img = 0; img < srcDepth; img++) {
1499 GLubyte *dstRow = (GLubyte *) dstAddr
1500 + dstImageOffsets[dstZoffset + img] * texelBytes
1501 + dstYoffset * dstRowStride
1502 + dstXoffset * texelBytes;
1503 for (row = 0; row < srcHeight; row++) {
1504 GLuint *dstUI = (GLuint *) dstRow;
1505 if (dstFormat == MESA_FORMAT_ARGB8888) {
1506 for (col = 0; col < srcWidth; col++) {
1507 dstUI[col] = PACK_COLOR_8888( CHAN_TO_UBYTE(src[ACOMP]),
1508 CHAN_TO_UBYTE(src[RCOMP]),
1509 CHAN_TO_UBYTE(src[GCOMP]),
1510 CHAN_TO_UBYTE(src[BCOMP]) );
1511 src += 4;
1512 }
1513 }
1514 else {
1515 for (col = 0; col < srcWidth; col++) {
1516 dstUI[col] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src[ACOMP]),
1517 CHAN_TO_UBYTE(src[RCOMP]),
1518 CHAN_TO_UBYTE(src[GCOMP]),
1519 CHAN_TO_UBYTE(src[BCOMP]) );
1520 src += 4;
1521 }
1522 }
1523 dstRow += dstRowStride;
1524 }
1525 }
1526 _mesa_free((void *) tempImage);
1527 }
1528 return GL_TRUE;
1529 }
1530
1531
1532 static GLboolean
1533 _mesa_texstore_rgb888(TEXSTORE_PARAMS)
1534 {
1535 const GLboolean littleEndian = _mesa_little_endian();
1536 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1537 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1538
1539 ASSERT(dstFormat == MESA_FORMAT_RGB888);
1540 ASSERT(texelBytes == 3);
1541
1542 if (!ctx->_ImageTransferState &&
1543 !srcPacking->SwapBytes &&
1544 baseInternalFormat == GL_RGB &&
1545 srcFormat == GL_BGR &&
1546 srcType == GL_UNSIGNED_BYTE &&
1547 littleEndian) {
1548 /* simple memcpy path */
1549 memcpy_texture(ctx, dims,
1550 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1551 dstRowStride,
1552 dstImageOffsets,
1553 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1554 srcAddr, srcPacking);
1555 }
1556 else if (!ctx->_ImageTransferState &&
1557 !srcPacking->SwapBytes &&
1558 srcFormat == GL_RGBA &&
1559 srcType == GL_UNSIGNED_BYTE) {
1560 /* extract RGB from RGBA */
1561 GLint img, row, col;
1562 for (img = 0; img < srcDepth; img++) {
1563 const GLint srcRowStride =
1564 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1565 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1566 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1567 GLubyte *dstRow = (GLubyte *) dstAddr
1568 + dstImageOffsets[dstZoffset + img] * texelBytes
1569 + dstYoffset * dstRowStride
1570 + dstXoffset * texelBytes;
1571 for (row = 0; row < srcHeight; row++) {
1572 for (col = 0; col < srcWidth; col++) {
1573 dstRow[col * 3 + 0] = srcRow[col * 4 + BCOMP];
1574 dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
1575 dstRow[col * 3 + 2] = srcRow[col * 4 + RCOMP];
1576 }
1577 dstRow += dstRowStride;
1578 srcRow += srcRowStride;
1579 }
1580 }
1581 }
1582 else if (!ctx->_ImageTransferState &&
1583 srcType == GL_UNSIGNED_BYTE &&
1584 can_swizzle(baseInternalFormat) &&
1585 can_swizzle(srcFormat)) {
1586
1587 GLubyte dstmap[4];
1588
1589 /* dstmap - how to swizzle from RGBA to dst format:
1590 */
1591 dstmap[0] = 2;
1592 dstmap[1] = 1;
1593 dstmap[2] = 0;
1594 dstmap[3] = ONE; /* ? */
1595
1596 _mesa_swizzle_ubyte_image(ctx, dims,
1597 srcFormat,
1598 srcType,
1599 baseInternalFormat,
1600 dstmap, 3,
1601 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1602 dstRowStride, dstImageOffsets,
1603 srcWidth, srcHeight, srcDepth, srcAddr,
1604 srcPacking);
1605 }
1606 else {
1607 /* general path */
1608 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1609 baseInternalFormat,
1610 baseFormat,
1611 srcWidth, srcHeight, srcDepth,
1612 srcFormat, srcType, srcAddr,
1613 srcPacking);
1614 const GLchan *src = (const GLchan *) tempImage;
1615 GLint img, row, col;
1616 if (!tempImage)
1617 return GL_FALSE;
1618 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1619 for (img = 0; img < srcDepth; img++) {
1620 GLubyte *dstRow = (GLubyte *) dstAddr
1621 + dstImageOffsets[dstZoffset + img] * texelBytes
1622 + dstYoffset * dstRowStride
1623 + dstXoffset * texelBytes;
1624 for (row = 0; row < srcHeight; row++) {
1625 #if 0
1626 if (littleEndian) {
1627 for (col = 0; col < srcWidth; col++) {
1628 dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]);
1629 dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
1630 dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]);
1631 srcUB += 3;
1632 }
1633 }
1634 else {
1635 for (col = 0; col < srcWidth; col++) {
1636 dstRow[col * 3 + 0] = srcUB[BCOMP];
1637 dstRow[col * 3 + 1] = srcUB[GCOMP];
1638 dstRow[col * 3 + 2] = srcUB[RCOMP];
1639 srcUB += 3;
1640 }
1641 }
1642 #else
1643 for (col = 0; col < srcWidth; col++) {
1644 dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[BCOMP]);
1645 dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
1646 dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[RCOMP]);
1647 src += 3;
1648 }
1649 #endif
1650 dstRow += dstRowStride;
1651 }
1652 }
1653 _mesa_free((void *) tempImage);
1654 }
1655 return GL_TRUE;
1656 }
1657
1658
1659 static GLboolean
1660 _mesa_texstore_bgr888(TEXSTORE_PARAMS)
1661 {
1662 const GLboolean littleEndian = _mesa_little_endian();
1663 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1664 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1665
1666 ASSERT(dstFormat == MESA_FORMAT_BGR888);
1667 ASSERT(texelBytes == 3);
1668
1669 if (!ctx->_ImageTransferState &&
1670 !srcPacking->SwapBytes &&
1671 baseInternalFormat == GL_RGB &&
1672 srcFormat == GL_RGB &&
1673 srcType == GL_UNSIGNED_BYTE &&
1674 littleEndian) {
1675 /* simple memcpy path */
1676 memcpy_texture(ctx, dims,
1677 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1678 dstRowStride,
1679 dstImageOffsets,
1680 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1681 srcAddr, srcPacking);
1682 }
1683 else if (!ctx->_ImageTransferState &&
1684 !srcPacking->SwapBytes &&
1685 srcFormat == GL_RGBA &&
1686 srcType == GL_UNSIGNED_BYTE) {
1687 /* extract BGR from RGBA */
1688 int img, row, col;
1689 for (img = 0; img < srcDepth; img++) {
1690 const GLint srcRowStride =
1691 _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType);
1692 GLubyte *srcRow = (GLubyte *) _mesa_image_address(dims, srcPacking,
1693 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, 0, 0);
1694 GLubyte *dstRow = (GLubyte *) dstAddr
1695 + dstImageOffsets[dstZoffset + img] * texelBytes
1696 + dstYoffset * dstRowStride
1697 + dstXoffset * texelBytes;
1698 for (row = 0; row < srcHeight; row++) {
1699 for (col = 0; col < srcWidth; col++) {
1700 dstRow[col * 3 + 0] = srcRow[col * 4 + RCOMP];
1701 dstRow[col * 3 + 1] = srcRow[col * 4 + GCOMP];
1702 dstRow[col * 3 + 2] = srcRow[col * 4 + BCOMP];
1703 }
1704 dstRow += dstRowStride;
1705 srcRow += srcRowStride;
1706 }
1707 }
1708 }
1709 else if (!ctx->_ImageTransferState &&
1710 srcType == GL_UNSIGNED_BYTE &&
1711 can_swizzle(baseInternalFormat) &&
1712 can_swizzle(srcFormat)) {
1713
1714 GLubyte dstmap[4];
1715
1716 /* dstmap - how to swizzle from RGBA to dst format:
1717 */
1718 dstmap[0] = 0;
1719 dstmap[1] = 1;
1720 dstmap[2] = 2;
1721 dstmap[3] = ONE; /* ? */
1722
1723 _mesa_swizzle_ubyte_image(ctx, dims,
1724 srcFormat,
1725 srcType,
1726 baseInternalFormat,
1727 dstmap, 3,
1728 dstAddr, dstXoffset, dstYoffset, dstZoffset,
1729 dstRowStride, dstImageOffsets,
1730 srcWidth, srcHeight, srcDepth, srcAddr,
1731 srcPacking);
1732 }
1733 else {
1734 /* general path */
1735 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1736 baseInternalFormat,
1737 baseFormat,
1738 srcWidth, srcHeight, srcDepth,
1739 srcFormat, srcType, srcAddr,
1740 srcPacking);
1741 const GLchan *src = (const GLchan *) tempImage;
1742 GLint img, row, col;
1743 if (!tempImage)
1744 return GL_FALSE;
1745 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1746 for (img = 0; img < srcDepth; img++) {
1747 GLubyte *dstRow = (GLubyte *) dstAddr
1748 + dstImageOffsets[dstZoffset + img] * texelBytes
1749 + dstYoffset * dstRowStride
1750 + dstXoffset * texelBytes;
1751 for (row = 0; row < srcHeight; row++) {
1752 for (col = 0; col < srcWidth; col++) {
1753 dstRow[col * 3 + 0] = CHAN_TO_UBYTE(src[RCOMP]);
1754 dstRow[col * 3 + 1] = CHAN_TO_UBYTE(src[GCOMP]);
1755 dstRow[col * 3 + 2] = CHAN_TO_UBYTE(src[BCOMP]);
1756 src += 3;
1757 }
1758 dstRow += dstRowStride;
1759 }
1760 }
1761 _mesa_free((void *) tempImage);
1762 }
1763 return GL_TRUE;
1764 }
1765
1766
1767 static GLboolean
1768 _mesa_texstore_argb4444(TEXSTORE_PARAMS)
1769 {
1770 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1771 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1772
1773 ASSERT(dstFormat == MESA_FORMAT_ARGB4444 ||
1774 dstFormat == MESA_FORMAT_ARGB4444_REV);
1775 ASSERT(texelBytes == 2);
1776
1777 if (!ctx->_ImageTransferState &&
1778 !srcPacking->SwapBytes &&
1779 dstFormat == MESA_FORMAT_ARGB4444 &&
1780 baseInternalFormat == GL_RGBA &&
1781 srcFormat == GL_BGRA &&
1782 srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV) {
1783 /* simple memcpy path */
1784 memcpy_texture(ctx, dims,
1785 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1786 dstRowStride,
1787 dstImageOffsets,
1788 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1789 srcAddr, srcPacking);
1790 }
1791 else {
1792 /* general path */
1793 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1794 baseInternalFormat,
1795 baseFormat,
1796 srcWidth, srcHeight, srcDepth,
1797 srcFormat, srcType, srcAddr,
1798 srcPacking);
1799 const GLchan *src = tempImage;
1800 GLint img, row, col;
1801 if (!tempImage)
1802 return GL_FALSE;
1803 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1804 for (img = 0; img < srcDepth; img++) {
1805 GLubyte *dstRow = (GLubyte *) dstAddr
1806 + dstImageOffsets[dstZoffset + img] * texelBytes
1807 + dstYoffset * dstRowStride
1808 + dstXoffset * texelBytes;
1809 for (row = 0; row < srcHeight; row++) {
1810 GLushort *dstUS = (GLushort *) dstRow;
1811 if (dstFormat == MESA_FORMAT_ARGB4444) {
1812 for (col = 0; col < srcWidth; col++) {
1813 dstUS[col] = PACK_COLOR_4444( CHAN_TO_UBYTE(src[ACOMP]),
1814 CHAN_TO_UBYTE(src[RCOMP]),
1815 CHAN_TO_UBYTE(src[GCOMP]),
1816 CHAN_TO_UBYTE(src[BCOMP]) );
1817 src += 4;
1818 }
1819 }
1820 else {
1821 for (col = 0; col < srcWidth; col++) {
1822 dstUS[col] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src[ACOMP]),
1823 CHAN_TO_UBYTE(src[RCOMP]),
1824 CHAN_TO_UBYTE(src[GCOMP]),
1825 CHAN_TO_UBYTE(src[BCOMP]) );
1826 src += 4;
1827 }
1828 }
1829 dstRow += dstRowStride;
1830 }
1831 }
1832 _mesa_free((void *) tempImage);
1833 }
1834 return GL_TRUE;
1835 }
1836
1837 static GLboolean
1838 _mesa_texstore_rgba5551(TEXSTORE_PARAMS)
1839 {
1840 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1841 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1842
1843 ASSERT(dstFormat == MESA_FORMAT_RGBA5551);
1844 ASSERT(texelBytes == 2);
1845
1846 if (!ctx->_ImageTransferState &&
1847 !srcPacking->SwapBytes &&
1848 dstFormat == MESA_FORMAT_RGBA5551 &&
1849 baseInternalFormat == GL_RGBA &&
1850 srcFormat == GL_RGBA &&
1851 srcType == GL_UNSIGNED_SHORT_5_5_5_1) {
1852 /* simple memcpy path */
1853 memcpy_texture(ctx, dims,
1854 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1855 dstRowStride,
1856 dstImageOffsets,
1857 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1858 srcAddr, srcPacking);
1859 }
1860 else {
1861 /* general path */
1862 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1863 baseInternalFormat,
1864 baseFormat,
1865 srcWidth, srcHeight, srcDepth,
1866 srcFormat, srcType, srcAddr,
1867 srcPacking);
1868 const GLchan *src =tempImage;
1869 GLint img, row, col;
1870 if (!tempImage)
1871 return GL_FALSE;
1872 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1873 for (img = 0; img < srcDepth; img++) {
1874 GLubyte *dstRow = (GLubyte *) dstAddr
1875 + dstImageOffsets[dstZoffset + img] * texelBytes
1876 + dstYoffset * dstRowStride
1877 + dstXoffset * texelBytes;
1878 for (row = 0; row < srcHeight; row++) {
1879 GLushort *dstUS = (GLushort *) dstRow;
1880 for (col = 0; col < srcWidth; col++) {
1881 dstUS[col] = PACK_COLOR_5551( CHAN_TO_UBYTE(src[RCOMP]),
1882 CHAN_TO_UBYTE(src[GCOMP]),
1883 CHAN_TO_UBYTE(src[BCOMP]),
1884 CHAN_TO_UBYTE(src[ACOMP]) );
1885 src += 4;
1886 }
1887 dstRow += dstRowStride;
1888 }
1889 }
1890 _mesa_free((void *) tempImage);
1891 }
1892 return GL_TRUE;
1893 }
1894
1895 static GLboolean
1896 _mesa_texstore_argb1555(TEXSTORE_PARAMS)
1897 {
1898 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1899 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1900
1901 ASSERT(dstFormat == MESA_FORMAT_ARGB1555 ||
1902 dstFormat == MESA_FORMAT_ARGB1555_REV);
1903 ASSERT(texelBytes == 2);
1904
1905 if (!ctx->_ImageTransferState &&
1906 !srcPacking->SwapBytes &&
1907 dstFormat == MESA_FORMAT_ARGB1555 &&
1908 baseInternalFormat == GL_RGBA &&
1909 srcFormat == GL_BGRA &&
1910 srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
1911 /* simple memcpy path */
1912 memcpy_texture(ctx, dims,
1913 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1914 dstRowStride,
1915 dstImageOffsets,
1916 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1917 srcAddr, srcPacking);
1918 }
1919 else {
1920 /* general path */
1921 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
1922 baseInternalFormat,
1923 baseFormat,
1924 srcWidth, srcHeight, srcDepth,
1925 srcFormat, srcType, srcAddr,
1926 srcPacking);
1927 const GLchan *src =tempImage;
1928 GLint img, row, col;
1929 if (!tempImage)
1930 return GL_FALSE;
1931 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
1932 for (img = 0; img < srcDepth; img++) {
1933 GLubyte *dstRow = (GLubyte *) dstAddr
1934 + dstImageOffsets[dstZoffset + img] * texelBytes
1935 + dstYoffset * dstRowStride
1936 + dstXoffset * texelBytes;
1937 for (row = 0; row < srcHeight; row++) {
1938 GLushort *dstUS = (GLushort *) dstRow;
1939 if (dstFormat == MESA_FORMAT_ARGB1555) {
1940 for (col = 0; col < srcWidth; col++) {
1941 dstUS[col] = PACK_COLOR_1555( CHAN_TO_UBYTE(src[ACOMP]),
1942 CHAN_TO_UBYTE(src[RCOMP]),
1943 CHAN_TO_UBYTE(src[GCOMP]),
1944 CHAN_TO_UBYTE(src[BCOMP]) );
1945 src += 4;
1946 }
1947 }
1948 else {
1949 for (col = 0; col < srcWidth; col++) {
1950 dstUS[col] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src[ACOMP]),
1951 CHAN_TO_UBYTE(src[RCOMP]),
1952 CHAN_TO_UBYTE(src[GCOMP]),
1953 CHAN_TO_UBYTE(src[BCOMP]) );
1954 src += 4;
1955 }
1956 }
1957 dstRow += dstRowStride;
1958 }
1959 }
1960 _mesa_free((void *) tempImage);
1961 }
1962 return GL_TRUE;
1963 }
1964
1965
1966 static GLboolean
1967 _mesa_texstore_al88(TEXSTORE_PARAMS)
1968 {
1969 const GLboolean littleEndian = _mesa_little_endian();
1970 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
1971 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
1972
1973 ASSERT(dstFormat == MESA_FORMAT_AL88 ||
1974 dstFormat == MESA_FORMAT_AL88_REV);
1975 ASSERT(texelBytes == 2);
1976
1977 if (!ctx->_ImageTransferState &&
1978 !srcPacking->SwapBytes &&
1979 dstFormat == MESA_FORMAT_AL88 &&
1980 baseInternalFormat == GL_LUMINANCE_ALPHA &&
1981 srcFormat == GL_LUMINANCE_ALPHA &&
1982 srcType == GL_UNSIGNED_BYTE &&
1983 littleEndian) {
1984 /* simple memcpy path */
1985 memcpy_texture(ctx, dims,
1986 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
1987 dstRowStride,
1988 dstImageOffsets,
1989 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
1990 srcAddr, srcPacking);
1991 }
1992 else if (!ctx->_ImageTransferState &&
1993 littleEndian &&
1994 srcType == GL_UNSIGNED_BYTE &&
1995 can_swizzle(baseInternalFormat) &&
1996 can_swizzle(srcFormat)) {
1997
1998 GLubyte dstmap[4];
1999
2000 /* dstmap - how to swizzle from RGBA to dst format:
2001 */
2002 if ((littleEndian && dstFormat == MESA_FORMAT_AL88) ||
2003 (!littleEndian && dstFormat == MESA_FORMAT_AL88_REV)) {
2004 dstmap[0] = 0;
2005 dstmap[1] = 3;
2006 }
2007 else {
2008 dstmap[0] = 3;
2009 dstmap[1] = 0;
2010 }
2011 dstmap[2] = ZERO; /* ? */
2012 dstmap[3] = ONE; /* ? */
2013
2014 _mesa_swizzle_ubyte_image(ctx, dims,
2015 srcFormat,
2016 srcType,
2017 baseInternalFormat,
2018 dstmap, 2,
2019 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2020 dstRowStride, dstImageOffsets,
2021 srcWidth, srcHeight, srcDepth, srcAddr,
2022 srcPacking);
2023 }
2024 else {
2025 /* general path */
2026 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2027 baseInternalFormat,
2028 baseFormat,
2029 srcWidth, srcHeight, srcDepth,
2030 srcFormat, srcType, srcAddr,
2031 srcPacking);
2032 const GLchan *src = tempImage;
2033 GLint img, row, col;
2034 if (!tempImage)
2035 return GL_FALSE;
2036 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
2037 for (img = 0; img < srcDepth; img++) {
2038 GLubyte *dstRow = (GLubyte *) dstAddr
2039 + dstImageOffsets[dstZoffset + img] * texelBytes
2040 + dstYoffset * dstRowStride
2041 + dstXoffset * texelBytes;
2042 for (row = 0; row < srcHeight; row++) {
2043 GLushort *dstUS = (GLushort *) dstRow;
2044 if (dstFormat == MESA_FORMAT_AL88) {
2045 for (col = 0; col < srcWidth; col++) {
2046 /* src[0] is luminance, src[1] is alpha */
2047 dstUS[col] = PACK_COLOR_88( CHAN_TO_UBYTE(src[1]),
2048 CHAN_TO_UBYTE(src[0]) );
2049 src += 2;
2050 }
2051 }
2052 else {
2053 for (col = 0; col < srcWidth; col++) {
2054 /* src[0] is luminance, src[1] is alpha */
2055 dstUS[col] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src[1]),
2056 CHAN_TO_UBYTE(src[0]) );
2057 src += 2;
2058 }
2059 }
2060 dstRow += dstRowStride;
2061 }
2062 }
2063 _mesa_free((void *) tempImage);
2064 }
2065 return GL_TRUE;
2066 }
2067
2068
2069 static GLboolean
2070 _mesa_texstore_rgb332(TEXSTORE_PARAMS)
2071 {
2072 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2073 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2074
2075 ASSERT(dstFormat == MESA_FORMAT_RGB332);
2076 ASSERT(texelBytes == 1);
2077
2078 if (!ctx->_ImageTransferState &&
2079 !srcPacking->SwapBytes &&
2080 baseInternalFormat == GL_RGB &&
2081 srcFormat == GL_RGB && srcType == GL_UNSIGNED_BYTE_3_3_2) {
2082 /* simple memcpy path */
2083 memcpy_texture(ctx, dims,
2084 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2085 dstRowStride,
2086 dstImageOffsets,
2087 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2088 srcAddr, srcPacking);
2089 }
2090 else {
2091 /* general path */
2092 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2093 baseInternalFormat,
2094 baseFormat,
2095 srcWidth, srcHeight, srcDepth,
2096 srcFormat, srcType, srcAddr,
2097 srcPacking);
2098 const GLchan *src = tempImage;
2099 GLint img, row, col;
2100 if (!tempImage)
2101 return GL_FALSE;
2102 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
2103 for (img = 0; img < srcDepth; img++) {
2104 GLubyte *dstRow = (GLubyte *) dstAddr
2105 + dstImageOffsets[dstZoffset + img] * texelBytes
2106 + dstYoffset * dstRowStride
2107 + dstXoffset * texelBytes;
2108 for (row = 0; row < srcHeight; row++) {
2109 for (col = 0; col < srcWidth; col++) {
2110 dstRow[col] = PACK_COLOR_332( CHAN_TO_UBYTE(src[RCOMP]),
2111 CHAN_TO_UBYTE(src[GCOMP]),
2112 CHAN_TO_UBYTE(src[BCOMP]) );
2113 src += 3;
2114 }
2115 dstRow += dstRowStride;
2116 }
2117 }
2118 _mesa_free((void *) tempImage);
2119 }
2120 return GL_TRUE;
2121 }
2122
2123
2124 /**
2125 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
2126 */
2127 static GLboolean
2128 _mesa_texstore_a8(TEXSTORE_PARAMS)
2129 {
2130 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2131 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2132
2133 ASSERT(dstFormat == MESA_FORMAT_A8 ||
2134 dstFormat == MESA_FORMAT_L8 ||
2135 dstFormat == MESA_FORMAT_I8);
2136 ASSERT(texelBytes == 1);
2137
2138 if (!ctx->_ImageTransferState &&
2139 !srcPacking->SwapBytes &&
2140 baseInternalFormat == srcFormat &&
2141 srcType == GL_UNSIGNED_BYTE) {
2142 /* simple memcpy path */
2143 memcpy_texture(ctx, dims,
2144 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2145 dstRowStride,
2146 dstImageOffsets,
2147 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2148 srcAddr, srcPacking);
2149 }
2150 else if (!ctx->_ImageTransferState &&
2151 srcType == GL_UNSIGNED_BYTE &&
2152 can_swizzle(baseInternalFormat) &&
2153 can_swizzle(srcFormat)) {
2154
2155 GLubyte dstmap[4];
2156
2157 /* dstmap - how to swizzle from RGBA to dst format:
2158 */
2159 if (dstFormat == MESA_FORMAT_A8) {
2160 dstmap[0] = 3;
2161 }
2162 else {
2163 dstmap[0] = 0;
2164 }
2165 dstmap[1] = ZERO; /* ? */
2166 dstmap[2] = ZERO; /* ? */
2167 dstmap[3] = ONE; /* ? */
2168
2169 _mesa_swizzle_ubyte_image(ctx, dims,
2170 srcFormat,
2171 srcType,
2172 baseInternalFormat,
2173 dstmap, 1,
2174 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2175 dstRowStride, dstImageOffsets,
2176 srcWidth, srcHeight, srcDepth, srcAddr,
2177 srcPacking);
2178 }
2179 else {
2180 /* general path */
2181 const GLchan *tempImage = _mesa_make_temp_chan_image(ctx, dims,
2182 baseInternalFormat,
2183 baseFormat,
2184 srcWidth, srcHeight, srcDepth,
2185 srcFormat, srcType, srcAddr,
2186 srcPacking);
2187 const GLchan *src = tempImage;
2188 GLint img, row, col;
2189 if (!tempImage)
2190 return GL_FALSE;
2191 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
2192 for (img = 0; img < srcDepth; img++) {
2193 GLubyte *dstRow = (GLubyte *) dstAddr
2194 + dstImageOffsets[dstZoffset + img] * texelBytes
2195 + dstYoffset * dstRowStride
2196 + dstXoffset * texelBytes;
2197 for (row = 0; row < srcHeight; row++) {
2198 for (col = 0; col < srcWidth; col++) {
2199 dstRow[col] = CHAN_TO_UBYTE(src[col]);
2200 }
2201 dstRow += dstRowStride;
2202 src += srcWidth;
2203 }
2204 }
2205 _mesa_free((void *) tempImage);
2206 }
2207 return GL_TRUE;
2208 }
2209
2210
2211
2212 static GLboolean
2213 _mesa_texstore_ci8(TEXSTORE_PARAMS)
2214 {
2215 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2216
2217 (void) dims; (void) baseInternalFormat;
2218 ASSERT(dstFormat == MESA_FORMAT_CI8);
2219 ASSERT(texelBytes == 1);
2220 ASSERT(baseInternalFormat == GL_COLOR_INDEX);
2221
2222 if (!ctx->_ImageTransferState &&
2223 !srcPacking->SwapBytes &&
2224 srcFormat == GL_COLOR_INDEX &&
2225 srcType == GL_UNSIGNED_BYTE) {
2226 /* simple memcpy path */
2227 memcpy_texture(ctx, dims,
2228 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2229 dstRowStride,
2230 dstImageOffsets,
2231 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2232 srcAddr, srcPacking);
2233 }
2234 else {
2235 /* general path */
2236 GLint img, row;
2237 for (img = 0; img < srcDepth; img++) {
2238 GLubyte *dstRow = (GLubyte *) dstAddr
2239 + dstImageOffsets[dstZoffset + img] * texelBytes
2240 + dstYoffset * dstRowStride
2241 + dstXoffset * texelBytes;
2242 for (row = 0; row < srcHeight; row++) {
2243 const GLvoid *src = _mesa_image_address(dims, srcPacking,
2244 srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0);
2245 _mesa_unpack_index_span(ctx, srcWidth, GL_UNSIGNED_BYTE, dstRow,
2246 srcType, src, srcPacking,
2247 ctx->_ImageTransferState);
2248 dstRow += dstRowStride;
2249 }
2250 }
2251 }
2252 return GL_TRUE;
2253 }
2254
2255
2256 /**
2257 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV.
2258 */
2259 static GLboolean
2260 _mesa_texstore_ycbcr(TEXSTORE_PARAMS)
2261 {
2262 const GLboolean littleEndian = _mesa_little_endian();
2263 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2264
2265 (void) ctx; (void) dims; (void) baseInternalFormat;
2266
2267 ASSERT((dstFormat == MESA_FORMAT_YCBCR) ||
2268 (dstFormat == MESA_FORMAT_YCBCR_REV));
2269 ASSERT(texelBytes == 2);
2270 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
2271 ASSERT(srcFormat == GL_YCBCR_MESA);
2272 ASSERT((srcType == GL_UNSIGNED_SHORT_8_8_MESA) ||
2273 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA));
2274 ASSERT(baseInternalFormat == GL_YCBCR_MESA);
2275
2276 /* always just memcpy since no pixel transfer ops apply */
2277 memcpy_texture(ctx, dims,
2278 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2279 dstRowStride,
2280 dstImageOffsets,
2281 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2282 srcAddr, srcPacking);
2283
2284 /* Check if we need byte swapping */
2285 /* XXX the logic here _might_ be wrong */
2286 if (srcPacking->SwapBytes ^
2287 (srcType == GL_UNSIGNED_SHORT_8_8_REV_MESA) ^
2288 (dstFormat == MESA_FORMAT_YCBCR_REV) ^
2289 !littleEndian) {
2290 GLint img, row;
2291 for (img = 0; img < srcDepth; img++) {
2292 GLubyte *dstRow = (GLubyte *) dstAddr
2293 + dstImageOffsets[dstZoffset + img] * texelBytes
2294 + dstYoffset * dstRowStride
2295 + dstXoffset * texelBytes;
2296 for (row = 0; row < srcHeight; row++) {
2297 _mesa_swap2((GLushort *) dstRow, srcWidth);
2298 dstRow += dstRowStride;
2299 }
2300 }
2301 }
2302 return GL_TRUE;
2303 }
2304
2305 static GLboolean
2306 _mesa_texstore_dudv8(TEXSTORE_PARAMS)
2307 {
2308 const GLboolean littleEndian = _mesa_little_endian();
2309 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2310
2311 ASSERT(dstFormat == MESA_FORMAT_DUDV8);
2312 ASSERT(texelBytes == 2);
2313 ASSERT(ctx->Extensions.ATI_envmap_bumpmap);
2314 ASSERT((srcFormat == GL_DU8DV8_ATI) ||
2315 (srcFormat == GL_DUDV_ATI));
2316 ASSERT(baseInternalFormat == GL_DUDV_ATI);
2317
2318 if (!srcPacking->SwapBytes && srcType == GL_BYTE &&
2319 littleEndian) {
2320 /* simple memcpy path */
2321 memcpy_texture(ctx, dims,
2322 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2323 dstRowStride,
2324 dstImageOffsets,
2325 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2326 srcAddr, srcPacking);
2327 }
2328 else if (srcType == GL_BYTE) {
2329
2330 GLubyte dstmap[4];
2331
2332 /* dstmap - how to swizzle from RGBA to dst format:
2333 */
2334 if (littleEndian) {
2335 dstmap[0] = 0;
2336 dstmap[1] = 3;
2337 }
2338 else {
2339 dstmap[0] = 3;
2340 dstmap[1] = 0;
2341 }
2342 dstmap[2] = ZERO; /* ? */
2343 dstmap[3] = ONE; /* ? */
2344
2345 _mesa_swizzle_ubyte_image(ctx, dims,
2346 GL_LUMINANCE_ALPHA, /* hack */
2347 GL_UNSIGNED_BYTE, /* hack */
2348 GL_LUMINANCE_ALPHA, /* hack */
2349 dstmap, 2,
2350 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2351 dstRowStride, dstImageOffsets,
2352 srcWidth, srcHeight, srcDepth, srcAddr,
2353 srcPacking);
2354 }
2355 else {
2356 /* general path - note this is defined for 2d textures only */
2357 const GLint components = _mesa_components_in_format(baseInternalFormat);
2358 const GLint srcStride = _mesa_image_row_stride(srcPacking, srcWidth,
2359 srcFormat, srcType);
2360 GLbyte *tempImage, *dst, *src;
2361 GLint row;
2362
2363 tempImage = (GLbyte *) _mesa_malloc(srcWidth * srcHeight * srcDepth
2364 * components * sizeof(GLbyte));
2365 if (!tempImage)
2366 return GL_FALSE;
2367
2368 src = (GLbyte *) _mesa_image_address(dims, srcPacking, srcAddr,
2369 srcWidth, srcHeight,
2370 srcFormat, srcType,
2371 0, 0, 0);
2372
2373 dst = tempImage;
2374 for (row = 0; row < srcHeight; row++) {
2375 _mesa_unpack_dudv_span_byte(ctx, srcWidth, baseInternalFormat,
2376 dst, srcFormat, srcType, src,
2377 srcPacking, 0);
2378 dst += srcWidth * components;
2379 src += srcStride;
2380 }
2381
2382 src = tempImage;
2383 dst = (GLbyte *) dstAddr
2384 + dstYoffset * dstRowStride
2385 + dstXoffset * texelBytes;
2386 for (row = 0; row < srcHeight; row++) {
2387 memcpy(dst, src, srcWidth * texelBytes);
2388 dst += dstRowStride;
2389 src += srcWidth * texelBytes;
2390 }
2391 _mesa_free((void *) tempImage);
2392 }
2393 return GL_TRUE;
2394 }
2395
2396 /**
2397 * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or MESA_FORMAT_SIGNED_RGBA8888_REV
2398 */
2399 static GLboolean
2400 _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS)
2401 {
2402 const GLboolean littleEndian = _mesa_little_endian();
2403 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2404 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2405
2406 ASSERT(dstFormat == MESA_FORMAT_SIGNED_RGBA8888 ||
2407 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV);
2408 ASSERT(texelBytes == 4);
2409
2410 if (!ctx->_ImageTransferState &&
2411 !srcPacking->SwapBytes &&
2412 dstFormat == MESA_FORMAT_SIGNED_RGBA8888 &&
2413 baseInternalFormat == GL_RGBA &&
2414 ((srcFormat == GL_RGBA && srcType == GL_BYTE && !littleEndian) ||
2415 (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && littleEndian))) {
2416 /* simple memcpy path */
2417 memcpy_texture(ctx, dims,
2418 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2419 dstRowStride,
2420 dstImageOffsets,
2421 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2422 srcAddr, srcPacking);
2423 }
2424 else if (!ctx->_ImageTransferState &&
2425 !srcPacking->SwapBytes &&
2426 dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV &&
2427 baseInternalFormat == GL_RGBA &&
2428 ((srcFormat == GL_RGBA && srcType == GL_BYTE && littleEndian) ||
2429 (srcFormat == GL_ABGR_EXT && srcType == GL_BYTE && !littleEndian))) {
2430 /* simple memcpy path */
2431 memcpy_texture(ctx, dims,
2432 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2433 dstRowStride,
2434 dstImageOffsets,
2435 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2436 srcAddr, srcPacking);
2437 }
2438 else if (!ctx->_ImageTransferState &&
2439 (srcType == GL_BYTE) &&
2440 can_swizzle(baseInternalFormat) &&
2441 can_swizzle(srcFormat)) {
2442
2443 GLubyte dstmap[4];
2444
2445 /* dstmap - how to swizzle from RGBA to dst format:
2446 */
2447 if ((littleEndian && dstFormat == MESA_FORMAT_SIGNED_RGBA8888) ||
2448 (!littleEndian && dstFormat == MESA_FORMAT_SIGNED_RGBA8888_REV)) {
2449 dstmap[3] = 0;
2450 dstmap[2] = 1;
2451 dstmap[1] = 2;
2452 dstmap[0] = 3;
2453 }
2454 else {
2455 dstmap[3] = 3;
2456 dstmap[2] = 2;
2457 dstmap[1] = 1;
2458 dstmap[0] = 0;
2459 }
2460
2461 _mesa_swizzle_ubyte_image(ctx, dims,
2462 srcFormat,
2463 srcType,
2464 baseInternalFormat,
2465 dstmap, 4,
2466 dstAddr, dstXoffset, dstYoffset, dstZoffset,
2467 dstRowStride, dstImageOffsets,
2468 srcWidth, srcHeight, srcDepth, srcAddr,
2469 srcPacking);
2470 }
2471 else {
2472 /* general path */
2473 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2474 baseInternalFormat,
2475 baseFormat,
2476 srcWidth, srcHeight, srcDepth,
2477 srcFormat, srcType, srcAddr,
2478 srcPacking);
2479 const GLfloat *srcRow = tempImage;
2480 GLint img, row, col;
2481 if (!tempImage)
2482 return GL_FALSE;
2483 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
2484 for (img = 0; img < srcDepth; img++) {
2485 GLubyte *dstRow = (GLubyte *) dstAddr
2486 + dstImageOffsets[dstZoffset + img] * texelBytes
2487 + dstYoffset * dstRowStride
2488 + dstXoffset * texelBytes;
2489 for (row = 0; row < srcHeight; row++) {
2490 GLuint *dstUI = (GLuint *) dstRow;
2491 if (dstFormat == MESA_FORMAT_SIGNED_RGBA8888) {
2492 for (col = 0; col < srcWidth; col++) {
2493 dstUI[col] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
2494 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
2495 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
2496 FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
2497 srcRow += 4;
2498 }
2499 }
2500 else {
2501 for (col = 0; col < srcWidth; col++) {
2502 dstUI[col] = PACK_COLOR_8888_REV( FLOAT_TO_BYTE_TEX(srcRow[RCOMP]),
2503 FLOAT_TO_BYTE_TEX(srcRow[GCOMP]),
2504 FLOAT_TO_BYTE_TEX(srcRow[BCOMP]),
2505 FLOAT_TO_BYTE_TEX(srcRow[ACOMP]) );
2506 srcRow += 4;
2507 }
2508 }
2509 dstRow += dstRowStride;
2510 }
2511 }
2512 _mesa_free((void *) tempImage);
2513 }
2514 return GL_TRUE;
2515 }
2516
2517 /**
2518 * Store a combined depth/stencil texture image.
2519 */
2520 static GLboolean
2521 _mesa_texstore_z24_s8(TEXSTORE_PARAMS)
2522 {
2523 const GLfloat depthScale = (GLfloat) 0xffffff;
2524 const GLint srcRowStride
2525 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
2526 / sizeof(GLuint);
2527 GLint img, row;
2528
2529 ASSERT(dstFormat == MESA_FORMAT_Z24_S8);
2530 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
2531 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
2532
2533 /* In case we only upload depth we need to preserve the stencil */
2534 if (srcFormat == GL_DEPTH_COMPONENT) {
2535 for (img = 0; img < srcDepth; img++) {
2536 GLuint *dstRow = (GLuint *) dstAddr
2537 + dstImageOffsets[dstZoffset + img]
2538 + dstYoffset * dstRowStride / sizeof(GLuint)
2539 + dstXoffset;
2540 const GLuint *src
2541 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
2542 srcWidth, srcHeight,
2543 srcFormat, srcType,
2544 img, 0, 0);
2545 for (row = 0; row < srcHeight; row++) {
2546 GLuint depth[MAX_WIDTH];
2547 GLint i;
2548 _mesa_unpack_depth_span(ctx, srcWidth,
2549 GL_UNSIGNED_INT, /* dst type */
2550 depth, /* dst addr */
2551 depthScale,
2552 srcType, src, srcPacking);
2553
2554 for (i = 0; i < srcWidth; i++)
2555 dstRow[i] = depth[i] << 8 | (dstRow[i] & 0x000000FF);
2556
2557 src += srcRowStride;
2558 dstRow += dstRowStride / sizeof(GLuint);
2559 }
2560 }
2561 }
2562 else if (ctx->Pixel.DepthScale == 1.0f &&
2563 ctx->Pixel.DepthBias == 0.0f &&
2564 !srcPacking->SwapBytes) {
2565 /* simple path */
2566 memcpy_texture(ctx, dims,
2567 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2568 dstRowStride,
2569 dstImageOffsets,
2570 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2571 srcAddr, srcPacking);
2572 }
2573 else {
2574 /* general path */
2575 const GLint srcRowStride
2576 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
2577 / sizeof(GLuint);
2578 GLint img, row;
2579
2580 for (img = 0; img < srcDepth; img++) {
2581 GLuint *dstRow = (GLuint *) dstAddr
2582 + dstImageOffsets[dstZoffset + img]
2583 + dstYoffset * dstRowStride / sizeof(GLuint)
2584 + dstXoffset;
2585 const GLuint *src
2586 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
2587 srcWidth, srcHeight,
2588 srcFormat, srcType,
2589 img, 0, 0);
2590 for (row = 0; row < srcHeight; row++) {
2591 GLubyte stencil[MAX_WIDTH];
2592 GLint i;
2593 /* the 24 depth bits will be in the high position: */
2594 _mesa_unpack_depth_span(ctx, srcWidth,
2595 GL_UNSIGNED_INT_24_8_EXT, /* dst type */
2596 dstRow, /* dst addr */
2597 (GLuint) depthScale,
2598 srcType, src, srcPacking);
2599 /* get the 8-bit stencil values */
2600 _mesa_unpack_stencil_span(ctx, srcWidth,
2601 GL_UNSIGNED_BYTE, /* dst type */
2602 stencil, /* dst addr */
2603 srcType, src, srcPacking,
2604 ctx->_ImageTransferState);
2605 /* merge stencil values into depth values */
2606 for (i = 0; i < srcWidth; i++)
2607 dstRow[i] |= stencil[i];
2608
2609 src += srcRowStride;
2610 dstRow += dstRowStride / sizeof(GLuint);
2611 }
2612 }
2613 }
2614 return GL_TRUE;
2615 }
2616
2617
2618 /**
2619 * Store a combined depth/stencil texture image.
2620 */
2621 static GLboolean
2622 _mesa_texstore_s8_z24(TEXSTORE_PARAMS)
2623 {
2624 const GLuint depthScale = 0xffffff;
2625 const GLint srcRowStride
2626 = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType)
2627 / sizeof(GLuint);
2628 GLint img, row;
2629
2630 ASSERT(dstFormat == MESA_FORMAT_S8_Z24);
2631 ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT);
2632 ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT);
2633
2634 /* In case we only upload depth we need to preserve the stencil */
2635 if (srcFormat == GL_DEPTH_COMPONENT) {
2636 for (img = 0; img < srcDepth; img++) {
2637 GLuint *dstRow = (GLuint *) dstAddr
2638 + dstImageOffsets[dstZoffset + img]
2639 + dstYoffset * dstRowStride / sizeof(GLuint)
2640 + dstXoffset;
2641 const GLuint *src
2642 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
2643 srcWidth, srcHeight,
2644 srcFormat, srcType,
2645 img, 0, 0);
2646 for (row = 0; row < srcHeight; row++) {
2647 GLuint depth[MAX_WIDTH];
2648 GLint i;
2649 _mesa_unpack_depth_span(ctx, srcWidth,
2650 GL_UNSIGNED_INT, /* dst type */
2651 depth, /* dst addr */
2652 depthScale,
2653 srcType, src, srcPacking);
2654
2655 for (i = 0; i < srcWidth; i++)
2656 dstRow[i] = depth[i] | (dstRow[i] & 0xFF000000);
2657
2658 src += srcRowStride;
2659 dstRow += dstRowStride / sizeof(GLuint);
2660 }
2661 }
2662 }
2663 else {
2664 for (img = 0; img < srcDepth; img++) {
2665 GLuint *dstRow = (GLuint *) dstAddr
2666 + dstImageOffsets[dstZoffset + img]
2667 + dstYoffset * dstRowStride / sizeof(GLuint)
2668 + dstXoffset;
2669 const GLuint *src
2670 = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr,
2671 srcWidth, srcHeight,
2672 srcFormat, srcType,
2673 img, 0, 0);
2674 for (row = 0; row < srcHeight; row++) {
2675 GLubyte stencil[MAX_WIDTH];
2676 GLint i;
2677 /* the 24 depth bits will be in the low position: */
2678 _mesa_unpack_depth_span(ctx, srcWidth,
2679 GL_UNSIGNED_INT, /* dst type */
2680 dstRow, /* dst addr */
2681 depthScale,
2682 srcType, src, srcPacking);
2683 /* get the 8-bit stencil values */
2684 _mesa_unpack_stencil_span(ctx, srcWidth,
2685 GL_UNSIGNED_BYTE, /* dst type */
2686 stencil, /* dst addr */
2687 srcType, src, srcPacking,
2688 ctx->_ImageTransferState);
2689 /* merge stencil values into depth values */
2690 for (i = 0; i < srcWidth; i++)
2691 dstRow[i] |= stencil[i] << 24;
2692
2693 src += srcRowStride;
2694 dstRow += dstRowStride / sizeof(GLuint);
2695 }
2696 }
2697 }
2698 return GL_TRUE;
2699 }
2700
2701 /**
2702 * Store an image in any of the formats:
2703 * _mesa_texformat_rgba_float32
2704 * _mesa_texformat_rgb_float32
2705 * _mesa_texformat_alpha_float32
2706 * _mesa_texformat_luminance_float32
2707 * _mesa_texformat_luminance_alpha_float32
2708 * _mesa_texformat_intensity_float32
2709 */
2710 static GLboolean
2711 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS)
2712 {
2713 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2714 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2715 const GLint components = _mesa_components_in_format(baseFormat);
2716
2717 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT32 ||
2718 dstFormat == MESA_FORMAT_RGB_FLOAT32 ||
2719 dstFormat == MESA_FORMAT_ALPHA_FLOAT32 ||
2720 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT32 ||
2721 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32 ||
2722 dstFormat == MESA_FORMAT_INTENSITY_FLOAT32);
2723 ASSERT(baseInternalFormat == GL_RGBA ||
2724 baseInternalFormat == GL_RGB ||
2725 baseInternalFormat == GL_ALPHA ||
2726 baseInternalFormat == GL_LUMINANCE ||
2727 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2728 baseInternalFormat == GL_INTENSITY);
2729 ASSERT(texelBytes == components * sizeof(GLfloat));
2730
2731 if (!ctx->_ImageTransferState &&
2732 !srcPacking->SwapBytes &&
2733 baseInternalFormat == srcFormat &&
2734 srcType == GL_FLOAT) {
2735 /* simple memcpy path */
2736 memcpy_texture(ctx, dims,
2737 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2738 dstRowStride,
2739 dstImageOffsets,
2740 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2741 srcAddr, srcPacking);
2742 }
2743 else {
2744 /* general path */
2745 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2746 baseInternalFormat,
2747 baseFormat,
2748 srcWidth, srcHeight, srcDepth,
2749 srcFormat, srcType, srcAddr,
2750 srcPacking);
2751 const GLfloat *srcRow = tempImage;
2752 GLint bytesPerRow;
2753 GLint img, row;
2754 if (!tempImage)
2755 return GL_FALSE;
2756 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
2757 bytesPerRow = srcWidth * components * sizeof(GLfloat);
2758 for (img = 0; img < srcDepth; img++) {
2759 GLubyte *dstRow = (GLubyte *) dstAddr
2760 + dstImageOffsets[dstZoffset + img] * texelBytes
2761 + dstYoffset * dstRowStride
2762 + dstXoffset * texelBytes;
2763 for (row = 0; row < srcHeight; row++) {
2764 _mesa_memcpy(dstRow, srcRow, bytesPerRow);
2765 dstRow += dstRowStride;
2766 srcRow += srcWidth * components;
2767 }
2768 }
2769
2770 _mesa_free((void *) tempImage);
2771 }
2772 return GL_TRUE;
2773 }
2774
2775
2776 /**
2777 * As above, but store 16-bit floats.
2778 */
2779 static GLboolean
2780 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS)
2781 {
2782 const GLuint texelBytes = _mesa_get_format_bytes(dstFormat);
2783 const GLenum baseFormat = _mesa_get_format_base_format(dstFormat);
2784 const GLint components = _mesa_components_in_format(baseFormat);
2785
2786 ASSERT(dstFormat == MESA_FORMAT_RGBA_FLOAT16 ||
2787 dstFormat == MESA_FORMAT_RGB_FLOAT16 ||
2788 dstFormat == MESA_FORMAT_ALPHA_FLOAT16 ||
2789 dstFormat == MESA_FORMAT_LUMINANCE_FLOAT16 ||
2790 dstFormat == MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16 ||
2791 dstFormat == MESA_FORMAT_INTENSITY_FLOAT16);
2792 ASSERT(baseInternalFormat == GL_RGBA ||
2793 baseInternalFormat == GL_RGB ||
2794 baseInternalFormat == GL_ALPHA ||
2795 baseInternalFormat == GL_LUMINANCE ||
2796 baseInternalFormat == GL_LUMINANCE_ALPHA ||
2797 baseInternalFormat == GL_INTENSITY);
2798 ASSERT(texelBytes == components * sizeof(GLhalfARB));
2799
2800 if (!ctx->_ImageTransferState &&
2801 !srcPacking->SwapBytes &&
2802 baseInternalFormat == srcFormat &&
2803 srcType == GL_HALF_FLOAT_ARB) {
2804 /* simple memcpy path */
2805 memcpy_texture(ctx, dims,
2806 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
2807 dstRowStride,
2808 dstImageOffsets,
2809 srcWidth, srcHeight, srcDepth, srcFormat, srcType,
2810 srcAddr, srcPacking);
2811 }
2812 else {
2813 /* general path */
2814 const GLfloat *tempImage = make_temp_float_image(ctx, dims,
2815 baseInternalFormat,
2816 baseFormat,
2817 srcWidth, srcHeight, srcDepth,
2818 srcFormat, srcType, srcAddr,
2819 srcPacking);
2820 const GLfloat *src = tempImage;
2821 GLint img, row;
2822 if (!tempImage)
2823 return GL_FALSE;
2824 _mesa_adjust_image_for_convolution(ctx, dims, &srcWidth, &srcHeight);
2825 for (img = 0; img < srcDepth; img++) {
2826 GLubyte *dstRow = (GLubyte *) dstAddr
2827 + dstImageOffsets[dstZoffset + img] * texelBytes
2828 + dstYoffset * dstRowStride
2829 + dstXoffset * texelBytes;
2830 for (row = 0; row < srcHeight; row++) {
2831 GLhalfARB *dstTexel = (GLhalfARB *) dstRow;
2832 GLint i;
2833 for (i = 0; i < srcWidth * components; i++) {
2834 dstTexel[i] = _mesa_float_to_half(src[i]);
2835 }
2836 dstRow += dstRowStride;
2837 src += srcWidth * components;
2838 }
2839 }
2840
2841 _mesa_free((void *) tempImage);
2842 }
2843 return GL_TRUE;
2844 }
2845
2846
2847 #if FEATURE_EXT_texture_sRGB
2848 static GLboolean
2849 _mesa_texstore_srgb8(TEXSTORE_PARAMS)
2850 {
2851 gl_format newDstFormat;
2852 GLboolean k;
2853
2854 ASSERT(dstFormat == MESA_FORMAT_SRGB8);
2855
2856 /* reuse normal rgb texstore code */
2857 newDstFormat = MESA_FORMAT_RGB888;
2858
2859 k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat,
2860 newDstFormat, dstAddr,
2861 dstXoffset, dstYoffset, dstZoffset,
2862 dstRowStride, dstImageOffsets,
2863 srcWidth, srcHeight, srcDepth,
2864 srcFormat, srcType,
2865 srcAddr, srcPacking);
2866 return k;
2867 }
2868
2869
2870 static GLboolean
2871 _mesa_texstore_srgba8(TEXSTORE_PARAMS)
2872 {
2873 gl_format newDstFormat;
2874 GLboolean k;
2875
2876 ASSERT(dstFormat == MESA_FORMAT_SRGBA8);
2877
2878 /* reuse normal rgba texstore code */
2879 newDstFormat = MESA_FORMAT_RGBA8888;
2880 k = _mesa_texstore_rgba8888(ctx, dims, baseInternalFormat,
2881 newDstFormat, dstAddr,
2882 dstXoffset, dstYoffset, dstZoffset,
2883 dstRowStride, dstImageOffsets,
2884 srcWidth, srcHeight, srcDepth,
2885 srcFormat, srcType,
2886 srcAddr, srcPacking);
2887 return k;
2888 }
2889
2890
2891 static GLboolean
2892 _mesa_texstore_sargb8(TEXSTORE_PARAMS)
2893 {
2894 gl_format newDstFormat;
2895 GLboolean k;
2896
2897 ASSERT(dstFormat == MESA_FORMAT_SARGB8);
2898
2899 /* reuse normal rgba texstore code */
2900 newDstFormat = MESA_FORMAT_ARGB8888;
2901
2902 k = _mesa_texstore_argb8888(ctx, dims, baseInternalFormat,
2903 newDstFormat, dstAddr,
2904 dstXoffset, dstYoffset, dstZoffset,
2905 dstRowStride, dstImageOffsets,
2906 srcWidth, srcHeight, srcDepth,
2907 srcFormat, srcType,
2908 srcAddr, srcPacking);
2909 return k;
2910 }
2911
2912
2913 static GLboolean
2914 _mesa_texstore_sl8(TEXSTORE_PARAMS)
2915 {
2916 gl_format newDstFormat;
2917 GLboolean k;
2918
2919 ASSERT(dstFormat == MESA_FORMAT_SL8);
2920
2921 newDstFormat = MESA_FORMAT_L8;
2922
2923 /* _mesa_textore_a8 handles luminance8 too */
2924 k = _mesa_texstore_a8(ctx, dims, baseInternalFormat,
2925 newDstFormat, dstAddr,
2926 dstXoffset, dstYoffset, dstZoffset,
2927 dstRowStride, dstImageOffsets,
2928 srcWidth, srcHeight, srcDepth,
2929 srcFormat, srcType,
2930 srcAddr, srcPacking);
2931 return k;
2932 }
2933
2934
2935 static GLboolean
2936 _mesa_texstore_sla8(TEXSTORE_PARAMS)
2937 {
2938 gl_format newDstFormat;
2939 GLboolean k;
2940
2941 ASSERT(dstFormat == MESA_FORMAT_SLA8);
2942
2943 /* reuse normal luminance/alpha texstore code */
2944 newDstFormat = MESA_FORMAT_AL88;
2945
2946 k = _mesa_texstore_al88(ctx, dims, baseInternalFormat,
2947 newDstFormat, dstAddr,
2948 dstXoffset, dstYoffset, dstZoffset,
2949 dstRowStride, dstImageOffsets,
2950 srcWidth, srcHeight, srcDepth,
2951 srcFormat, srcType,
2952 srcAddr, srcPacking);
2953 return k;
2954 }
2955
2956 #endif /* FEATURE_EXT_texture_sRGB */
2957
2958
2959
2960
2961 /**
2962 * Table mapping MESA_FORMAT_8 to _mesa_texstore_*()
2963 * XXX this is somewhat temporary.
2964 */
2965 static struct {
2966 gl_format Name;
2967 StoreTexImageFunc Store;
2968 }
2969 texstore_funcs[MESA_FORMAT_COUNT] =
2970 {
2971 { MESA_FORMAT_NONE, NULL },
2972 { MESA_FORMAT_RGBA8888, _mesa_texstore_rgba8888 },
2973 { MESA_FORMAT_RGBA8888_REV, _mesa_texstore_rgba8888 },
2974 { MESA_FORMAT_ARGB8888, _mesa_texstore_argb8888 },
2975 { MESA_FORMAT_ARGB8888_REV, _mesa_texstore_argb8888 },
2976 { MESA_FORMAT_RGB888, _mesa_texstore_rgb888 },
2977 { MESA_FORMAT_BGR888, _mesa_texstore_bgr888 },
2978 { MESA_FORMAT_RGB565, _mesa_texstore_rgb565 },
2979 { MESA_FORMAT_RGB565_REV, _mesa_texstore_rgb565 },
2980 { MESA_FORMAT_ARGB4444, _mesa_texstore_argb4444 },
2981 { MESA_FORMAT_ARGB4444_REV, _mesa_texstore_argb4444 },
2982 { MESA_FORMAT_RGBA5551, _mesa_texstore_rgba5551 },
2983 { MESA_FORMAT_ARGB1555, _mesa_texstore_argb1555 },
2984 { MESA_FORMAT_ARGB1555_REV, _mesa_texstore_argb1555 },
2985 { MESA_FORMAT_AL88, _mesa_texstore_al88 },
2986 { MESA_FORMAT_AL88_REV, _mesa_texstore_al88 },
2987 { MESA_FORMAT_RGB332, _mesa_texstore_rgb332 },
2988 { MESA_FORMAT_A8, _mesa_texstore_a8 },
2989 { MESA_FORMAT_L8, _mesa_texstore_a8 },
2990 { MESA_FORMAT_I8, _mesa_texstore_a8 },
2991 { MESA_FORMAT_CI8, _mesa_texstore_ci8 },
2992 { MESA_FORMAT_YCBCR, _mesa_texstore_ycbcr },
2993 { MESA_FORMAT_YCBCR_REV, _mesa_texstore_ycbcr },
2994 { MESA_FORMAT_Z24_S8, _mesa_texstore_z24_s8 },
2995 { MESA_FORMAT_S8_Z24, _mesa_texstore_s8_z24 },
2996 { MESA_FORMAT_Z16, _mesa_texstore_z16 },
2997 { MESA_FORMAT_Z32, _mesa_texstore_z32 },
2998 { MESA_FORMAT_S8, NULL/*_mesa_texstore_s8*/ },
2999 { MESA_FORMAT_SRGB8, _mesa_texstore_srgb8 },
3000 { MESA_FORMAT_SRGBA8, _mesa_texstore_srgba8 },
3001 { MESA_FORMAT_SARGB8, _mesa_texstore_sargb8 },
3002 { MESA_FORMAT_SL8, _mesa_texstore_sl8 },
3003 { MESA_FORMAT_SLA8, _mesa_texstore_sla8 },
3004 { MESA_FORMAT_SRGB_DXT1, _mesa_texstore_rgb_dxt1 },
3005 { MESA_FORMAT_SRGBA_DXT1, _mesa_texstore_rgba_dxt1 },
3006 { MESA_FORMAT_SRGBA_DXT3, _mesa_texstore_rgba_dxt3 },
3007 { MESA_FORMAT_SRGBA_DXT5, _mesa_texstore_rgba_dxt5 },
3008 { MESA_FORMAT_RGB_FXT1, _mesa_texstore_rgb_fxt1 },
3009 { MESA_FORMAT_RGBA_FXT1, _mesa_texstore_rgba_fxt1 },
3010 { MESA_FORMAT_RGB_DXT1, _mesa_texstore_rgb_dxt1 },
3011 { MESA_FORMAT_RGBA_DXT1, _mesa_texstore_rgba_dxt1 },
3012 { MESA_FORMAT_RGBA_DXT3, _mesa_texstore_rgba_dxt3 },
3013 { MESA_FORMAT_RGBA_DXT5, _mesa_texstore_rgba_dxt5 },
3014 { MESA_FORMAT_RGBA_FLOAT32, _mesa_texstore_rgba_float32 },
3015 { MESA_FORMAT_RGBA_FLOAT16, _mesa_texstore_rgba_float16 },
3016 { MESA_FORMAT_RGB_FLOAT32, _mesa_texstore_rgba_float32 },
3017 { MESA_FORMAT_RGB_FLOAT16, _mesa_texstore_rgba_float16 },
3018 { MESA_FORMAT_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
3019 { MESA_FORMAT_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
3020 { MESA_FORMAT_LUMINANCE_FLOAT32, _mesa_texstore_rgba_float32 },
3021 { MESA_FORMAT_LUMINANCE_FLOAT16, _mesa_texstore_rgba_float16 },
3022 { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32, _mesa_texstore_rgba_float32 },
3023 { MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16, _mesa_texstore_rgba_float16 },
3024 { MESA_FORMAT_INTENSITY_FLOAT32, _mesa_texstore_rgba_float32 },
3025 { MESA_FORMAT_INTENSITY_FLOAT16, _mesa_texstore_rgba_float16 },
3026 { MESA_FORMAT_DUDV8, _mesa_texstore_dudv8 },
3027 { MESA_FORMAT_SIGNED_RGBA8888, _mesa_texstore_signed_rgba8888 },
3028 { MESA_FORMAT_SIGNED_RGBA8888_REV, _mesa_texstore_signed_rgba8888 },
3029 { MESA_FORMAT_SIGNED_RGBA_16, NULL },
3030 };
3031
3032
3033 /**
3034 * Return the StoreTexImageFunc pointer to store an image in the given format.
3035 */
3036 static StoreTexImageFunc
3037 _mesa_get_texstore_func(gl_format format)
3038 {
3039 GLuint i;
3040 #ifdef DEBUG
3041 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
3042 ASSERT(texstore_funcs[i].Name == i);
3043 }
3044 #endif
3045 ASSERT(texstore_funcs[format].Name == format);
3046 return texstore_funcs[format].Store;
3047 }
3048
3049
3050 /**
3051 * Store user data into texture memory.
3052 * Called via glTex[Sub]Image1/2/3D()
3053 */
3054 GLboolean
3055 _mesa_texstore(TEXSTORE_PARAMS)
3056 {
3057 StoreTexImageFunc storeImage;
3058 GLboolean success;
3059
3060 storeImage = _mesa_get_texstore_func(dstFormat);
3061
3062 assert(storeImage);
3063
3064 success = storeImage(ctx, dims, baseInternalFormat,
3065 dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset,
3066 dstRowStride, dstImageOffsets,
3067 srcWidth, srcHeight, srcDepth,
3068 srcFormat, srcType, srcAddr, srcPacking);
3069 return success;
3070 }
3071
3072
3073 /**
3074 * Check if an unpack PBO is active prior to fetching a texture image.
3075 * If so, do bounds checking and map the buffer into main memory.
3076 * Any errors detected will be recorded.
3077 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
3078 */
3079 const GLvoid *
3080 _mesa_validate_pbo_teximage(GLcontext *ctx, GLuint dimensions,
3081 GLsizei width, GLsizei height, GLsizei depth,
3082 GLenum format, GLenum type, const GLvoid *pixels,
3083 const struct gl_pixelstore_attrib *unpack,
3084 const char *funcName)
3085 {
3086 GLubyte *buf;
3087
3088 if (!_mesa_is_bufferobj(unpack->BufferObj)) {
3089 /* no PBO */
3090 return pixels;
3091 }
3092 if (!_mesa_validate_pbo_access(dimensions, unpack, width, height, depth,
3093 format, type, pixels)) {
3094 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access");
3095 return NULL;
3096 }
3097
3098 buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
3099 GL_READ_ONLY_ARB, unpack->BufferObj);
3100 if (!buf) {
3101 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped");
3102 return NULL;
3103 }
3104
3105 return ADD_POINTERS(buf, pixels);
3106 }
3107
3108
3109 /**
3110 * Check if an unpack PBO is active prior to fetching a compressed texture
3111 * image.
3112 * If so, do bounds checking and map the buffer into main memory.
3113 * Any errors detected will be recorded.
3114 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
3115 */
3116 const GLvoid *
3117 _mesa_validate_pbo_compressed_teximage(GLcontext *ctx,
3118 GLsizei imageSize, const GLvoid *pixels,
3119 const struct gl_pixelstore_attrib *packing,
3120 const char *funcName)
3121 {
3122 GLubyte *buf;
3123
3124 if (!_mesa_is_bufferobj(packing->BufferObj)) {
3125 /* not using a PBO - return pointer unchanged */
3126 return pixels;
3127 }
3128 if ((const GLubyte *) pixels + imageSize >
3129 ((const GLubyte *) 0) + packing->BufferObj->Size) {
3130 /* out of bounds read! */
3131 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(invalid PBO access");
3132 return NULL;
3133 }
3134
3135 buf = (GLubyte*) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
3136 GL_READ_ONLY_ARB, packing->BufferObj);
3137 if (!buf) {
3138 _mesa_error(ctx, GL_INVALID_OPERATION, funcName, "(PBO is mapped");
3139 return NULL;
3140 }
3141
3142 return ADD_POINTERS(buf, pixels);
3143 }
3144
3145
3146 /**
3147 * This function must be called after either of the validate_pbo_*_teximage()
3148 * functions. It unmaps the PBO buffer if it was mapped earlier.
3149 */
3150 void
3151 _mesa_unmap_teximage_pbo(GLcontext *ctx,
3152 const struct gl_pixelstore_attrib *unpack)
3153 {
3154 if (_mesa_is_bufferobj(unpack->BufferObj)) {
3155 ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
3156 unpack->BufferObj);
3157 }
3158 }
3159
3160
3161 /** Return texture size in bytes */
3162 static GLuint
3163 texture_size(const struct gl_texture_image *texImage)
3164 {
3165 GLuint sz = _mesa_format_image_size(texImage->TexFormat, texImage->Width,
3166 texImage->Height, texImage->Depth);
3167 return sz;
3168 }
3169
3170
3171 /** Return row stride in bytes */
3172 static GLuint
3173 texture_row_stride(const struct gl_texture_image *texImage)
3174 {
3175 GLuint stride;
3176
3177 if (_mesa_is_format_compressed(texImage->TexFormat)) {
3178 stride = _mesa_compressed_row_stride(texImage->TexFormat,
3179 texImage->Width);
3180 }
3181 else {
3182 GLuint texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
3183 stride = texImage->RowStride * texelBytes;
3184 }
3185
3186 return stride;
3187 }
3188
3189
3190
3191 /**
3192 * This is the software fallback for Driver.TexImage1D()
3193 * and Driver.CopyTexImage1D().
3194 * \sa _mesa_store_teximage2d()
3195 * Note that the width may not be the actual texture width since it may
3196 * be changed by convolution w/ GL_REDUCE. The texImage->Width field will
3197 * have the actual texture size.
3198 */
3199 void
3200 _mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level,
3201 GLint internalFormat,
3202 GLint width, GLint border,
3203 GLenum format, GLenum type, const GLvoid *pixels,
3204 const struct gl_pixelstore_attrib *packing,
3205 struct gl_texture_object *texObj,
3206 struct gl_texture_image *texImage)
3207 {
3208 GLuint sizeInBytes;
3209 (void) border;
3210
3211 texImage->TexFormat
3212 = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
3213 ASSERT(texImage->TexFormat);
3214
3215 /* allocate memory */
3216 sizeInBytes = texture_size(texImage);
3217 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
3218 if (!texImage->Data) {
3219 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
3220 return;
3221 }
3222
3223 pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
3224 pixels, packing, "glTexImage1D");
3225 if (!pixels) {
3226 /* Note: we check for a NULL image pointer here, _after_ we allocated
3227 * memory for the texture. That's what the GL spec calls for.
3228 */
3229 return;
3230 }
3231 else {
3232 const GLint dstRowStride = 0;
3233 GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat,
3234 texImage->TexFormat,
3235 texImage->Data,
3236 0, 0, 0, /* dstX/Y/Zoffset */
3237 dstRowStride,
3238 texImage->ImageOffsets,
3239 width, 1, 1,
3240 format, type, pixels, packing);
3241 if (!success) {
3242 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
3243 }
3244 }
3245
3246 _mesa_unmap_teximage_pbo(ctx, packing);
3247 }
3248
3249
3250 /**
3251 * This is the software fallback for Driver.TexImage2D()
3252 * and Driver.CopyTexImage2D().
3253 *
3254 * This function is oriented toward storing images in main memory, rather
3255 * than VRAM. Device driver's can easily plug in their own replacement.
3256 *
3257 * Note: width and height may be pre-convolved dimensions, but
3258 * texImage->Width and texImage->Height will be post-convolved dimensions.
3259 */
3260 void
3261 _mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level,
3262 GLint internalFormat,
3263 GLint width, GLint height, GLint border,
3264 GLenum format, GLenum type, const void *pixels,
3265 const struct gl_pixelstore_attrib *packing,
3266 struct gl_texture_object *texObj,
3267 struct gl_texture_image *texImage)
3268 {
3269 GLuint sizeInBytes;
3270 (void) border;
3271
3272 texImage->TexFormat
3273 = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
3274 ASSERT(texImage->TexFormat);
3275
3276 /* allocate memory */
3277 sizeInBytes = texture_size(texImage);
3278 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
3279 if (!texImage->Data) {
3280 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
3281 return;
3282 }
3283
3284 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
3285 pixels, packing, "glTexImage2D");
3286 if (!pixels) {
3287 /* Note: we check for a NULL image pointer here, _after_ we allocated
3288 * memory for the texture. That's what the GL spec calls for.
3289 */
3290 return;
3291 }
3292 else {
3293 GLint dstRowStride = texture_row_stride(texImage);
3294 GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat,
3295 texImage->TexFormat,
3296 texImage->Data,
3297 0, 0, 0, /* dstX/Y/Zoffset */
3298 dstRowStride,
3299 texImage->ImageOffsets,
3300 width, height, 1,
3301 format, type, pixels, packing);
3302 if (!success) {
3303 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
3304 }
3305 }
3306
3307 _mesa_unmap_teximage_pbo(ctx, packing);
3308 }
3309
3310
3311
3312 /**
3313 * This is the software fallback for Driver.TexImage3D()
3314 * and Driver.CopyTexImage3D().
3315 * \sa _mesa_store_teximage2d()
3316 */
3317 void
3318 _mesa_store_teximage3d(GLcontext *ctx, GLenum target, GLint level,
3319 GLint internalFormat,
3320 GLint width, GLint height, GLint depth, GLint border,
3321 GLenum format, GLenum type, const void *pixels,
3322 const struct gl_pixelstore_attrib *packing,
3323 struct gl_texture_object *texObj,
3324 struct gl_texture_image *texImage)
3325 {
3326 GLuint sizeInBytes;
3327 (void) border;
3328
3329 texImage->TexFormat
3330 = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
3331 ASSERT(texImage->TexFormat);
3332
3333 /* allocate memory */
3334 sizeInBytes = texture_size(texImage);
3335 texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
3336 if (!texImage->Data) {
3337 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
3338 return;
3339 }
3340
3341 pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
3342 type, pixels, packing, "glTexImage3D");
3343 if (!pixels) {
3344 /* Note: we check for a NULL image pointer here, _after_ we allocated
3345 * memory for the texture. That's what the GL spec calls for.
3346 */
3347 return;
3348 }
3349 else {
3350 GLint dstRowStride = texture_row_stride(texImage);
3351 GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat,
3352 texImage->TexFormat,
3353 texImage->Data,
3354 0, 0, 0, /* dstX/Y/Zoffset */
3355 dstRowStride,
3356 texImage->ImageOffsets,
3357 width, height, depth,
3358 format, type, pixels, packing);
3359 if (!success) {
3360 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
3361 }
3362 }
3363
3364 _mesa_unmap_teximage_pbo(ctx, packing);
3365 }
3366
3367
3368
3369
3370 /*
3371 * This is the software fallback for Driver.TexSubImage1D()
3372 * and Driver.CopyTexSubImage1D().
3373 */
3374 void
3375 _mesa_store_texsubimage1d(GLcontext *ctx, GLenum target, GLint level,
3376 GLint xoffset, GLint width,
3377 GLenum format, GLenum type, const void *pixels,
3378 const struct gl_pixelstore_attrib *packing,
3379 struct gl_texture_object *texObj,
3380 struct gl_texture_image *texImage)
3381 {
3382 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3383 pixels = _mesa_validate_pbo_teximage(ctx, 1, width, 1, 1, format, type,
3384 pixels, packing, "glTexSubImage1D");
3385 if (!pixels)
3386 return;
3387
3388 {
3389 const GLint dstRowStride = 0;
3390 GLboolean success = _mesa_texstore(ctx, 1, texImage->_BaseFormat,
3391 texImage->TexFormat,
3392 texImage->Data,
3393 xoffset, 0, 0, /* offsets */
3394 dstRowStride,
3395 texImage->ImageOffsets,
3396 width, 1, 1,
3397 format, type, pixels, packing);
3398 if (!success) {
3399 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage1D");
3400 }
3401 }
3402
3403 _mesa_unmap_teximage_pbo(ctx, packing);
3404 }
3405
3406
3407
3408 /**
3409 * This is the software fallback for Driver.TexSubImage2D()
3410 * and Driver.CopyTexSubImage2D().
3411 */
3412 void
3413 _mesa_store_texsubimage2d(GLcontext *ctx, GLenum target, GLint level,
3414 GLint xoffset, GLint yoffset,
3415 GLint width, GLint height,
3416 GLenum format, GLenum type, const void *pixels,
3417 const struct gl_pixelstore_attrib *packing,
3418 struct gl_texture_object *texObj,
3419 struct gl_texture_image *texImage)
3420 {
3421 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3422 pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1, format, type,
3423 pixels, packing, "glTexSubImage2D");
3424 if (!pixels)
3425 return;
3426
3427 {
3428 GLint dstRowStride = texture_row_stride(texImage);
3429 GLboolean success = _mesa_texstore(ctx, 2, texImage->_BaseFormat,
3430 texImage->TexFormat,
3431 texImage->Data,
3432 xoffset, yoffset, 0,
3433 dstRowStride,
3434 texImage->ImageOffsets,
3435 width, height, 1,
3436 format, type, pixels, packing);
3437 if (!success) {
3438 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
3439 }
3440 }
3441
3442 _mesa_unmap_teximage_pbo(ctx, packing);
3443 }
3444
3445
3446 /*
3447 * This is the software fallback for Driver.TexSubImage3D().
3448 * and Driver.CopyTexSubImage3D().
3449 */
3450 void
3451 _mesa_store_texsubimage3d(GLcontext *ctx, GLenum target, GLint level,
3452 GLint xoffset, GLint yoffset, GLint zoffset,
3453 GLint width, GLint height, GLint depth,
3454 GLenum format, GLenum type, const void *pixels,
3455 const struct gl_pixelstore_attrib *packing,
3456 struct gl_texture_object *texObj,
3457 struct gl_texture_image *texImage)
3458 {
3459 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3460 pixels = _mesa_validate_pbo_teximage(ctx, 3, width, height, depth, format,
3461 type, pixels, packing,
3462 "glTexSubImage3D");
3463 if (!pixels)
3464 return;
3465
3466 {
3467 GLint dstRowStride = texture_row_stride(texImage);
3468 GLboolean success = _mesa_texstore(ctx, 3, texImage->_BaseFormat,
3469 texImage->TexFormat,
3470 texImage->Data,
3471 xoffset, yoffset, zoffset,
3472 dstRowStride,
3473 texImage->ImageOffsets,
3474 width, height, depth,
3475 format, type, pixels, packing);
3476 if (!success) {
3477 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage3D");
3478 }
3479 }
3480
3481 _mesa_unmap_teximage_pbo(ctx, packing);
3482 }
3483
3484
3485 /*
3486 * Fallback for Driver.CompressedTexImage1D()
3487 */
3488 void
3489 _mesa_store_compressed_teximage1d(GLcontext *ctx, GLenum target, GLint level,
3490 GLint internalFormat,
3491 GLint width, GLint border,
3492 GLsizei imageSize, const GLvoid *data,
3493 struct gl_texture_object *texObj,
3494 struct gl_texture_image *texImage)
3495 {
3496 /* this space intentionally left blank */
3497 (void) ctx;
3498 (void) target; (void) level;
3499 (void) internalFormat;
3500 (void) width; (void) border;
3501 (void) imageSize; (void) data;
3502 (void) texObj;
3503 (void) texImage;
3504 }
3505
3506
3507
3508 /**
3509 * Fallback for Driver.CompressedTexImage2D()
3510 */
3511 void
3512 _mesa_store_compressed_teximage2d(GLcontext *ctx, GLenum target, GLint level,
3513 GLint internalFormat,
3514 GLint width, GLint height, GLint border,
3515 GLsizei imageSize, const GLvoid *data,
3516 struct gl_texture_object *texObj,
3517 struct gl_texture_image *texImage)
3518 {
3519 (void) width; (void) height; (void) border;
3520
3521 /* This is pretty simple, basically just do a memcpy without worrying
3522 * about the usual image unpacking or image transfer operations.
3523 */
3524 ASSERT(texObj);
3525 ASSERT(texImage);
3526 ASSERT(texImage->Width > 0);
3527 ASSERT(texImage->Height > 0);
3528 ASSERT(texImage->Depth == 1);
3529 ASSERT(texImage->Data == NULL); /* was freed in glCompressedTexImage2DARB */
3530
3531 texImage->TexFormat
3532 = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, 0, 0);
3533 ASSERT(texImage->TexFormat);
3534
3535 /* allocate storage */
3536 texImage->Data = _mesa_alloc_texmemory(imageSize);
3537 if (!texImage->Data) {
3538 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2DARB");
3539 return;
3540 }
3541
3542 data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
3543 &ctx->Unpack,
3544 "glCompressedTexImage2D");
3545 if (!data)
3546 return;
3547
3548 /* copy the data */
3549 MEMCPY(texImage->Data, data, imageSize);
3550
3551 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
3552 }
3553
3554
3555
3556 /*
3557 * Fallback for Driver.CompressedTexImage3D()
3558 */
3559 void
3560 _mesa_store_compressed_teximage3d(GLcontext *ctx, GLenum target, GLint level,
3561 GLint internalFormat,
3562 GLint width, GLint height, GLint depth,
3563 GLint border,
3564 GLsizei imageSize, const GLvoid *data,
3565 struct gl_texture_object *texObj,
3566 struct gl_texture_image *texImage)
3567 {
3568 /* this space intentionally left blank */
3569 (void) ctx;
3570 (void) target; (void) level;
3571 (void) internalFormat;
3572 (void) width; (void) height; (void) depth;
3573 (void) border;
3574 (void) imageSize; (void) data;
3575 (void) texObj;
3576 (void) texImage;
3577 }
3578
3579
3580
3581 /**
3582 * Fallback for Driver.CompressedTexSubImage1D()
3583 */
3584 void
3585 _mesa_store_compressed_texsubimage1d(GLcontext *ctx, GLenum target,
3586 GLint level,
3587 GLint xoffset, GLsizei width,
3588 GLenum format,
3589 GLsizei imageSize, const GLvoid *data,
3590 struct gl_texture_object *texObj,
3591 struct gl_texture_image *texImage)
3592 {
3593 /* there are no compressed 1D texture formats yet */
3594 (void) ctx;
3595 (void) target; (void) level;
3596 (void) xoffset; (void) width;
3597 (void) format;
3598 (void) imageSize; (void) data;
3599 (void) texObj;
3600 (void) texImage;
3601 }
3602
3603
3604 /**
3605 * Fallback for Driver.CompressedTexSubImage2D()
3606 */
3607 void
3608 _mesa_store_compressed_texsubimage2d(GLcontext *ctx, GLenum target,
3609 GLint level,
3610 GLint xoffset, GLint yoffset,
3611 GLsizei width, GLsizei height,
3612 GLenum format,
3613 GLsizei imageSize, const GLvoid *data,
3614 struct gl_texture_object *texObj,
3615 struct gl_texture_image *texImage)
3616 {
3617 GLint bytesPerRow, destRowStride, srcRowStride;
3618 GLint i, rows;
3619 GLubyte *dest;
3620 const GLubyte *src;
3621 const gl_format texFormat = texImage->TexFormat;
3622
3623 (void) format;
3624
3625 /* these should have been caught sooner */
3626 ASSERT((width & 3) == 0 || width == 2 || width == 1);
3627 ASSERT((height & 3) == 0 || height == 2 || height == 1);
3628 ASSERT((xoffset & 3) == 0);
3629 ASSERT((yoffset & 3) == 0);
3630
3631 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3632 data = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, data,
3633 &ctx->Unpack,
3634 "glCompressedTexSubImage2D");
3635 if (!data)
3636 return;
3637
3638 srcRowStride = _mesa_compressed_row_stride(texFormat, width);
3639 src = (const GLubyte *) data;
3640
3641 destRowStride = _mesa_compressed_row_stride(texFormat, texImage->Width);
3642 dest = _mesa_compressed_image_address(xoffset, yoffset, 0,
3643 texFormat,
3644 texImage->Width,
3645 (GLubyte *) texImage->Data);
3646
3647 bytesPerRow = srcRowStride;
3648 rows = height / 4;
3649
3650 for (i = 0; i < rows; i++) {
3651 MEMCPY(dest, src, bytesPerRow);
3652 dest += destRowStride;
3653 src += srcRowStride;
3654 }
3655
3656 _mesa_unmap_teximage_pbo(ctx, &ctx->Unpack);
3657 }
3658
3659
3660 /**
3661 * Fallback for Driver.CompressedTexSubImage3D()
3662 */
3663 void
3664 _mesa_store_compressed_texsubimage3d(GLcontext *ctx, GLenum target,
3665 GLint level,
3666 GLint xoffset, GLint yoffset, GLint zoffset,
3667 GLsizei width, GLsizei height, GLsizei depth,
3668 GLenum format,
3669 GLsizei imageSize, const GLvoid *data,
3670 struct gl_texture_object *texObj,
3671 struct gl_texture_image *texImage)
3672 {
3673 /* there are no compressed 3D texture formats yet */
3674 (void) ctx;
3675 (void) target; (void) level;
3676 (void) xoffset; (void) yoffset; (void) zoffset;
3677 (void) width; (void) height; (void) depth;
3678 (void) format;
3679 (void) imageSize; (void) data;
3680 (void) texObj;
3681 (void) texImage;
3682 }