2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008-2009 VMware, Inc.
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:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
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.
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
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
40 * ctx->Driver.TexImage1D = _mesa_store_teximage1d;
41 * ctx->Driver.TexImage2D = _mesa_store_teximage2d;
42 * ctx->Driver.TexImage3D = _mesa_store_teximage3d;
45 * Texture image processing is actually kind of complicated. We have to do:
46 * Format/type conversions
48 * pixel transfer (scale, bais, lookup, convolution!, etc)
50 * These functions can handle most everything, including processing full
51 * images and sub-images.
56 #include "bufferobj.h"
64 #include "texcompress.h"
65 #include "texformat.h"
78 * Return GL_TRUE if the given image format is one that be converted
79 * to another format by swizzling.
82 can_swizzle(GLenum logicalBaseFormat
)
84 switch (logicalBaseFormat
) {
87 case GL_LUMINANCE_ALPHA
:
121 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
122 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
123 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
124 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
127 static const struct {
130 GLubyte from_rgba
[6];
131 } mappings
[MAX_IDX
] =
141 MAP4(ZERO
, ZERO
, ZERO
, 0),
172 MAP4(0, ZERO
, ZERO
, ONE
),
178 MAP4(ZERO
, 0, ZERO
, ONE
),
184 MAP4(ZERO
, ZERO
, 0, ONE
),
210 * Convert a GL image format enum to an IDX_* value (see above).
213 get_map_idx(GLenum value
)
216 case GL_LUMINANCE
: return IDX_LUMINANCE
;
217 case GL_ALPHA
: return IDX_ALPHA
;
218 case GL_INTENSITY
: return IDX_INTENSITY
;
219 case GL_LUMINANCE_ALPHA
: return IDX_LUMINANCE_ALPHA
;
220 case GL_RGB
: return IDX_RGB
;
221 case GL_RGBA
: return IDX_RGBA
;
222 case GL_RED
: return IDX_RED
;
223 case GL_GREEN
: return IDX_GREEN
;
224 case GL_BLUE
: return IDX_BLUE
;
225 case GL_BGR
: return IDX_BGR
;
226 case GL_BGRA
: return IDX_BGRA
;
227 case GL_ABGR_EXT
: return IDX_ABGR
;
229 _mesa_problem(NULL
, "Unexpected inFormat");
236 * When promoting texture formats (see below) we need to compute the
237 * mapping of dest components back to source components.
238 * This function does that.
239 * \param inFormat the incoming format of the texture
240 * \param outFormat the final texture format
241 * \return map[6] a full 6-component map
244 compute_component_mapping(GLenum inFormat
, GLenum outFormat
,
247 const int inFmt
= get_map_idx(inFormat
);
248 const int outFmt
= get_map_idx(outFormat
);
249 const GLubyte
*in2rgba
= mappings
[inFmt
].to_rgba
;
250 const GLubyte
*rgba2out
= mappings
[outFmt
].from_rgba
;
253 for (i
= 0; i
< 4; i
++)
254 map
[i
] = in2rgba
[rgba2out
[i
]];
260 _mesa_printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
261 inFormat, _mesa_lookup_enum_by_nr(inFormat),
262 outFormat, _mesa_lookup_enum_by_nr(outFormat),
273 #if !FEATURE_convolve
275 _mesa_adjust_image_for_convolution(GLcontext
*ctx
, GLuint dims
,
276 GLsizei
*srcWidth
, GLsizei
*srcHeight
)
284 * Make a temporary (color) texture image with GLfloat components.
285 * Apply all needed pixel unpacking and pixel transfer operations.
286 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
287 * Suppose the user specifies GL_LUMINANCE as the internal texture format
288 * but the graphics hardware doesn't support luminance textures. So, might
289 * use an RGB hardware format instead.
290 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
292 * \param ctx the rendering context
293 * \param dims image dimensions: 1, 2 or 3
294 * \param logicalBaseFormat basic texture derived from the user's
295 * internal texture format value
296 * \param textureBaseFormat the actual basic format of the texture
297 * \param srcWidth source image width
298 * \param srcHeight source image height
299 * \param srcDepth source image depth
300 * \param srcFormat source image format
301 * \param srcType source image type
302 * \param srcAddr source image address
303 * \param srcPacking source image pixel packing
304 * \return resulting image with format = textureBaseFormat and type = GLfloat.
307 make_temp_float_image(GLcontext
*ctx
, GLuint dims
,
308 GLenum logicalBaseFormat
,
309 GLenum textureBaseFormat
,
310 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
311 GLenum srcFormat
, GLenum srcType
,
312 const GLvoid
*srcAddr
,
313 const struct gl_pixelstore_attrib
*srcPacking
)
315 GLuint transferOps
= ctx
->_ImageTransferState
;
318 ASSERT(dims
>= 1 && dims
<= 3);
320 ASSERT(logicalBaseFormat
== GL_RGBA
||
321 logicalBaseFormat
== GL_RGB
||
322 logicalBaseFormat
== GL_LUMINANCE_ALPHA
||
323 logicalBaseFormat
== GL_LUMINANCE
||
324 logicalBaseFormat
== GL_ALPHA
||
325 logicalBaseFormat
== GL_INTENSITY
||
326 logicalBaseFormat
== GL_COLOR_INDEX
||
327 logicalBaseFormat
== GL_DEPTH_COMPONENT
);
329 ASSERT(textureBaseFormat
== GL_RGBA
||
330 textureBaseFormat
== GL_RGB
||
331 textureBaseFormat
== GL_LUMINANCE_ALPHA
||
332 textureBaseFormat
== GL_LUMINANCE
||
333 textureBaseFormat
== GL_ALPHA
||
334 textureBaseFormat
== GL_INTENSITY
||
335 textureBaseFormat
== GL_COLOR_INDEX
||
336 textureBaseFormat
== GL_DEPTH_COMPONENT
);
338 /* conventional color image */
340 if ((dims
== 1 && ctx
->Pixel
.Convolution1DEnabled
) ||
341 (dims
>= 2 && ctx
->Pixel
.Convolution2DEnabled
) ||
342 (dims
>= 2 && ctx
->Pixel
.Separable2DEnabled
)) {
343 /* need image convolution */
344 const GLuint preConvTransferOps
345 = (transferOps
& IMAGE_PRE_CONVOLUTION_BITS
) | IMAGE_CLAMP_BIT
;
346 const GLuint postConvTransferOps
347 = (transferOps
& IMAGE_POST_CONVOLUTION_BITS
) | IMAGE_CLAMP_BIT
;
349 GLint convWidth
, convHeight
;
352 /* pre-convolution image buffer (3D) */
353 tempImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
354 * 4 * sizeof(GLfloat
));
358 /* post-convolution image buffer (2D) */
359 convImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
360 * 4 * sizeof(GLfloat
));
362 _mesa_free(tempImage
);
366 /* loop over 3D image slices */
367 for (img
= 0; img
< srcDepth
; img
++) {
368 GLfloat
*dst
= tempImage
+ img
* (srcWidth
* srcHeight
* 4);
370 /* unpack and do transfer ops up to convolution */
371 for (row
= 0; row
< srcHeight
; row
++) {
372 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
373 srcAddr
, srcWidth
, srcHeight
,
374 srcFormat
, srcType
, img
, row
, 0);
375 _mesa_unpack_color_span_float(ctx
, srcWidth
, GL_RGBA
, dst
,
376 srcFormat
, srcType
, src
,
382 /* size after optional convolution */
383 convWidth
= srcWidth
;
384 convHeight
= srcHeight
;
389 GLfloat
*src
= tempImage
+ img
* (srcWidth
* srcHeight
* 4);
391 ASSERT(ctx
->Pixel
.Convolution1DEnabled
);
392 _mesa_convolve_1d_image(ctx
, &convWidth
, src
, convImage
);
395 if (ctx
->Pixel
.Convolution2DEnabled
) {
396 _mesa_convolve_2d_image(ctx
, &convWidth
, &convHeight
,
400 ASSERT(ctx
->Pixel
.Separable2DEnabled
);
401 _mesa_convolve_sep_image(ctx
, &convWidth
, &convHeight
,
407 /* do post-convolution transfer and pack into tempImage */
409 const GLint logComponents
410 = _mesa_components_in_format(logicalBaseFormat
);
411 const GLfloat
*src
= convImage
;
412 GLfloat
*dst
= tempImage
+ img
* (convWidth
* convHeight
* 4);
413 for (row
= 0; row
< convHeight
; row
++) {
414 _mesa_pack_rgba_span_float(ctx
, convWidth
,
415 (GLfloat (*)[4]) src
,
416 logicalBaseFormat
, GL_FLOAT
,
417 dst
, &ctx
->DefaultPacking
,
418 postConvTransferOps
);
419 src
+= convWidth
* 4;
420 dst
+= convWidth
* logComponents
;
423 } /* loop over 3D image slices */
425 _mesa_free(convImage
);
427 /* might need these below */
428 srcWidth
= convWidth
;
429 srcHeight
= convHeight
;
433 const GLint components
= _mesa_components_in_format(logicalBaseFormat
);
434 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
435 srcWidth
, srcFormat
, srcType
);
439 tempImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
440 * components
* sizeof(GLfloat
));
445 for (img
= 0; img
< srcDepth
; img
++) {
447 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
451 for (row
= 0; row
< srcHeight
; row
++) {
452 _mesa_unpack_color_span_float(ctx
, srcWidth
, logicalBaseFormat
,
453 dst
, srcFormat
, srcType
, src
,
454 srcPacking
, transferOps
);
455 dst
+= srcWidth
* components
;
461 if (logicalBaseFormat
!= textureBaseFormat
) {
463 GLint texComponents
= _mesa_components_in_format(textureBaseFormat
);
464 GLint logComponents
= _mesa_components_in_format(logicalBaseFormat
);
469 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
470 ASSERT(textureBaseFormat
== GL_RGB
|| textureBaseFormat
== GL_RGBA
||
471 textureBaseFormat
== GL_LUMINANCE_ALPHA
);
473 /* The actual texture format should have at least as many components
474 * as the logical texture format.
476 ASSERT(texComponents
>= logComponents
);
478 newImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
479 * texComponents
* sizeof(GLfloat
));
481 _mesa_free(tempImage
);
485 compute_component_mapping(logicalBaseFormat
, textureBaseFormat
, map
);
487 n
= srcWidth
* srcHeight
* srcDepth
;
488 for (i
= 0; i
< n
; i
++) {
490 for (k
= 0; k
< texComponents
; k
++) {
493 newImage
[i
* texComponents
+ k
] = 0.0F
;
495 newImage
[i
* texComponents
+ k
] = 1.0F
;
497 newImage
[i
* texComponents
+ k
] = tempImage
[i
* logComponents
+ j
];
501 _mesa_free(tempImage
);
502 tempImage
= newImage
;
510 * Make a temporary (color) texture image with GLchan components.
511 * Apply all needed pixel unpacking and pixel transfer operations.
512 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
513 * Suppose the user specifies GL_LUMINANCE as the internal texture format
514 * but the graphics hardware doesn't support luminance textures. So, might
515 * use an RGB hardware format instead.
516 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
518 * \param ctx the rendering context
519 * \param dims image dimensions: 1, 2 or 3
520 * \param logicalBaseFormat basic texture derived from the user's
521 * internal texture format value
522 * \param textureBaseFormat the actual basic format of the texture
523 * \param srcWidth source image width
524 * \param srcHeight source image height
525 * \param srcDepth source image depth
526 * \param srcFormat source image format
527 * \param srcType source image type
528 * \param srcAddr source image address
529 * \param srcPacking source image pixel packing
530 * \return resulting image with format = textureBaseFormat and type = GLchan.
533 _mesa_make_temp_chan_image(GLcontext
*ctx
, GLuint dims
,
534 GLenum logicalBaseFormat
,
535 GLenum textureBaseFormat
,
536 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
537 GLenum srcFormat
, GLenum srcType
,
538 const GLvoid
*srcAddr
,
539 const struct gl_pixelstore_attrib
*srcPacking
)
541 GLuint transferOps
= ctx
->_ImageTransferState
;
542 const GLint components
= _mesa_components_in_format(logicalBaseFormat
);
543 GLboolean freeSrcImage
= GL_FALSE
;
545 GLchan
*tempImage
, *dst
;
547 ASSERT(dims
>= 1 && dims
<= 3);
549 ASSERT(logicalBaseFormat
== GL_RGBA
||
550 logicalBaseFormat
== GL_RGB
||
551 logicalBaseFormat
== GL_LUMINANCE_ALPHA
||
552 logicalBaseFormat
== GL_LUMINANCE
||
553 logicalBaseFormat
== GL_ALPHA
||
554 logicalBaseFormat
== GL_INTENSITY
);
556 ASSERT(textureBaseFormat
== GL_RGBA
||
557 textureBaseFormat
== GL_RGB
||
558 textureBaseFormat
== GL_LUMINANCE_ALPHA
||
559 textureBaseFormat
== GL_LUMINANCE
||
560 textureBaseFormat
== GL_ALPHA
||
561 textureBaseFormat
== GL_INTENSITY
);
564 if ((dims
== 1 && ctx
->Pixel
.Convolution1DEnabled
) ||
565 (dims
>= 2 && ctx
->Pixel
.Convolution2DEnabled
) ||
566 (dims
>= 2 && ctx
->Pixel
.Separable2DEnabled
)) {
567 /* get convolved image */
568 GLfloat
*convImage
= make_temp_float_image(ctx
, dims
,
571 srcWidth
, srcHeight
, srcDepth
,
573 srcAddr
, srcPacking
);
576 /* the convolved image is our new source image */
578 srcFormat
= logicalBaseFormat
;
580 srcPacking
= &ctx
->DefaultPacking
;
581 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
583 freeSrcImage
= GL_TRUE
;
587 /* unpack and transfer the source image */
588 tempImage
= (GLchan
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
589 * components
* sizeof(GLchan
));
594 for (img
= 0; img
< srcDepth
; img
++) {
595 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
599 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
603 for (row
= 0; row
< srcHeight
; row
++) {
604 _mesa_unpack_color_span_chan(ctx
, srcWidth
, logicalBaseFormat
, dst
,
605 srcFormat
, srcType
, src
, srcPacking
,
607 dst
+= srcWidth
* components
;
612 /* If we made a temporary image for convolution, free it here */
614 _mesa_free((void *) srcAddr
);
617 if (logicalBaseFormat
!= textureBaseFormat
) {
618 /* one more conversion step */
619 GLint texComponents
= _mesa_components_in_format(textureBaseFormat
);
620 GLint logComponents
= _mesa_components_in_format(logicalBaseFormat
);
625 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
626 ASSERT(textureBaseFormat
== GL_RGB
|| textureBaseFormat
== GL_RGBA
||
627 textureBaseFormat
== GL_LUMINANCE_ALPHA
);
629 /* The actual texture format should have at least as many components
630 * as the logical texture format.
632 ASSERT(texComponents
>= logComponents
);
634 newImage
= (GLchan
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
635 * texComponents
* sizeof(GLchan
));
637 _mesa_free(tempImage
);
641 compute_component_mapping(logicalBaseFormat
, textureBaseFormat
, map
);
643 n
= srcWidth
* srcHeight
* srcDepth
;
644 for (i
= 0; i
< n
; i
++) {
646 for (k
= 0; k
< texComponents
; k
++) {
649 newImage
[i
* texComponents
+ k
] = 0;
651 newImage
[i
* texComponents
+ k
] = CHAN_MAX
;
653 newImage
[i
* texComponents
+ k
] = tempImage
[i
* logComponents
+ j
];
657 _mesa_free(tempImage
);
658 tempImage
= newImage
;
666 * Copy GLubyte pixels from <src> to <dst> with swizzling.
667 * \param dst destination pixels
668 * \param dstComponents number of color components in destination pixels
669 * \param src source pixels
670 * \param srcComponents number of color components in source pixels
671 * \param map the swizzle mapping. map[X] says where to find the X component
672 * in the source image's pixels. For example, if the source image
673 * is GL_BGRA and X = red, map[0] yields 2.
674 * \param count number of pixels to copy/swizzle.
677 swizzle_copy(GLubyte
*dst
, GLuint dstComponents
, const GLubyte
*src
,
678 GLuint srcComponents
, const GLubyte
*map
, GLuint count
)
680 #define SWZ_CPY(dst, src, count, dstComps, srcComps) \
683 for (i = 0; i < count; i++) { \
685 if (srcComps == 4) { \
686 COPY_4UBV(tmp, src); \
689 for (j = 0; j < srcComps; j++) { \
694 for (j = 0; j < dstComps; j++) { \
695 dst[j] = tmp[map[j]]; \
706 ASSERT(srcComponents
<= 4);
707 ASSERT(dstComponents
<= 4);
709 switch (dstComponents
) {
711 switch (srcComponents
) {
713 SWZ_CPY(dst
, src
, count
, 4, 4);
716 SWZ_CPY(dst
, src
, count
, 4, 3);
719 SWZ_CPY(dst
, src
, count
, 4, 2);
722 SWZ_CPY(dst
, src
, count
, 4, 1);
729 switch (srcComponents
) {
731 SWZ_CPY(dst
, src
, count
, 3, 4);
734 SWZ_CPY(dst
, src
, count
, 3, 3);
737 SWZ_CPY(dst
, src
, count
, 3, 2);
740 SWZ_CPY(dst
, src
, count
, 3, 1);
747 switch (srcComponents
) {
749 SWZ_CPY(dst
, src
, count
, 2, 4);
752 SWZ_CPY(dst
, src
, count
, 2, 3);
755 SWZ_CPY(dst
, src
, count
, 2, 2);
758 SWZ_CPY(dst
, src
, count
, 2, 1);
765 switch (srcComponents
) {
767 SWZ_CPY(dst
, src
, count
, 1, 4);
770 SWZ_CPY(dst
, src
, count
, 1, 3);
773 SWZ_CPY(dst
, src
, count
, 1, 2);
776 SWZ_CPY(dst
, src
, count
, 1, 1);
790 static const GLubyte map_identity
[6] = { 0, 1, 2, 3, ZERO
, ONE
};
791 static const GLubyte map_3210
[6] = { 3, 2, 1, 0, ZERO
, ONE
};
793 /* Deal with the _REV input types:
795 static const GLubyte
*
796 type_mapping( GLenum srcType
)
800 case GL_UNSIGNED_BYTE
:
802 case GL_UNSIGNED_INT_8_8_8_8
:
803 return _mesa_little_endian() ? map_3210
: map_identity
;
804 case GL_UNSIGNED_INT_8_8_8_8_REV
:
805 return _mesa_little_endian() ? map_identity
: map_3210
;
811 /* Mapping required if input type is
813 static const GLubyte
*
814 byteswap_mapping( GLboolean swapBytes
,
822 case GL_UNSIGNED_BYTE
:
824 case GL_UNSIGNED_INT_8_8_8_8
:
825 case GL_UNSIGNED_INT_8_8_8_8_REV
:
835 * Transfer a GLubyte texture image with component swizzling.
838 _mesa_swizzle_ubyte_image(GLcontext
*ctx
,
843 GLenum baseInternalFormat
,
845 const GLubyte
*rgba2dst
,
846 GLuint dstComponents
,
849 GLint dstXoffset
, GLint dstYoffset
, GLint dstZoffset
,
851 const GLuint
*dstImageOffsets
,
853 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
854 const GLvoid
*srcAddr
,
855 const struct gl_pixelstore_attrib
*srcPacking
)
857 GLint srcComponents
= _mesa_components_in_format(srcFormat
);
858 const GLubyte
*srctype2ubyte
, *swap
;
859 GLubyte map
[4], src2base
[6], base2rgba
[6];
861 const GLint srcRowStride
=
862 _mesa_image_row_stride(srcPacking
, srcWidth
,
863 srcFormat
, GL_UNSIGNED_BYTE
);
864 const GLint srcImageStride
865 = _mesa_image_image_stride(srcPacking
, srcWidth
, srcHeight
, srcFormat
,
867 const GLubyte
*srcImage
868 = (const GLubyte
*) _mesa_image_address(dimensions
, srcPacking
, srcAddr
,
869 srcWidth
, srcHeight
, srcFormat
,
870 GL_UNSIGNED_BYTE
, 0, 0, 0);
874 /* Translate from src->baseInternal->GL_RGBA->dst. This will
875 * correctly deal with RGBA->RGB->RGBA conversions where the final
876 * A value must be 0xff regardless of the incoming alpha values.
878 compute_component_mapping(srcFormat
, baseInternalFormat
, src2base
);
879 compute_component_mapping(baseInternalFormat
, GL_RGBA
, base2rgba
);
880 swap
= byteswap_mapping(srcPacking
->SwapBytes
, srcType
);
881 srctype2ubyte
= type_mapping(srcType
);
884 for (i
= 0; i
< 4; i
++)
885 map
[i
] = srctype2ubyte
[swap
[src2base
[base2rgba
[rgba2dst
[i
]]]]];
887 /* _mesa_printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
889 if (srcComponents
== dstComponents
&&
890 srcRowStride
== dstRowStride
&&
891 srcRowStride
== srcWidth
* srcComponents
&&
893 /* 1 and 2D images only */
894 GLubyte
*dstImage
= (GLubyte
*) dstAddr
895 + dstYoffset
* dstRowStride
896 + dstXoffset
* dstComponents
;
897 swizzle_copy(dstImage
, dstComponents
, srcImage
, srcComponents
, map
,
898 srcWidth
* srcHeight
);
902 for (img
= 0; img
< srcDepth
; img
++) {
903 const GLubyte
*srcRow
= srcImage
;
904 GLubyte
*dstRow
= (GLubyte
*) dstAddr
905 + dstImageOffsets
[dstZoffset
+ img
] * dstComponents
906 + dstYoffset
* dstRowStride
907 + dstXoffset
* dstComponents
;
908 for (row
= 0; row
< srcHeight
; row
++) {
909 swizzle_copy(dstRow
, dstComponents
, srcRow
, srcComponents
, map
, srcWidth
);
910 dstRow
+= dstRowStride
;
911 srcRow
+= srcRowStride
;
913 srcImage
+= srcImageStride
;
920 * Teximage storage routine for when a simple memcpy will do.
921 * No pixel transfer operations or special texel encodings allowed.
922 * 1D, 2D and 3D images supported.
925 memcpy_texture(GLcontext
*ctx
,
927 const struct gl_texture_format
*dstFormat
,
929 GLint dstXoffset
, GLint dstYoffset
, GLint dstZoffset
,
931 const GLuint
*dstImageOffsets
,
932 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
933 GLenum srcFormat
, GLenum srcType
,
934 const GLvoid
*srcAddr
,
935 const struct gl_pixelstore_attrib
*srcPacking
)
937 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
, srcWidth
,
939 const GLint srcImageStride
= _mesa_image_image_stride(srcPacking
,
940 srcWidth
, srcHeight
, srcFormat
, srcType
);
941 const GLubyte
*srcImage
= (const GLubyte
*) _mesa_image_address(dimensions
,
942 srcPacking
, srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, 0, 0, 0);
943 const GLint bytesPerRow
= srcWidth
* dstFormat
->TexelBytes
;
946 /* XXX update/re-enable for dstImageOffsets array */
947 const GLint bytesPerImage
= srcHeight
* bytesPerRow
;
948 const GLint bytesPerTexture
= srcDepth
* bytesPerImage
;
949 GLubyte
*dstImage
= (GLubyte
*) dstAddr
950 + dstZoffset
* dstImageStride
951 + dstYoffset
* dstRowStride
952 + dstXoffset
* dstFormat
->TexelBytes
;
954 if (dstRowStride
== srcRowStride
&&
955 dstRowStride
== bytesPerRow
&&
956 ((dstImageStride
== srcImageStride
&&
957 dstImageStride
== bytesPerImage
) ||
960 ctx
->Driver
.TextureMemCpy(dstImage
, srcImage
, bytesPerTexture
);
965 for (img
= 0; img
< srcDepth
; img
++) {
966 const GLubyte
*srcRow
= srcImage
;
967 GLubyte
*dstRow
= dstImage
;
968 for (row
= 0; row
< srcHeight
; row
++) {
969 ctx
->Driver
.TextureMemCpy(dstRow
, srcRow
, bytesPerRow
);
970 dstRow
+= dstRowStride
;
971 srcRow
+= srcRowStride
;
973 srcImage
+= srcImageStride
;
974 dstImage
+= dstImageStride
;
980 for (img
= 0; img
< srcDepth
; img
++) {
981 const GLubyte
*srcRow
= srcImage
;
982 GLubyte
*dstRow
= (GLubyte
*) dstAddr
983 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
984 + dstYoffset
* dstRowStride
985 + dstXoffset
* dstFormat
->TexelBytes
;
986 for (row
= 0; row
< srcHeight
; row
++) {
987 ctx
->Driver
.TextureMemCpy(dstRow
, srcRow
, bytesPerRow
);
988 dstRow
+= dstRowStride
;
989 srcRow
+= srcRowStride
;
991 srcImage
+= srcImageStride
;
998 * Store an image in any of the formats:
999 * _mesa_texformat_rgba
1000 * _mesa_texformat_rgb
1001 * _mesa_texformat_alpha
1002 * _mesa_texformat_luminance
1003 * _mesa_texformat_luminance_alpha
1004 * _mesa_texformat_intensity
1008 _mesa_texstore_rgba(TEXSTORE_PARAMS
)
1010 const GLint components
= _mesa_components_in_format(baseInternalFormat
);
1012 ASSERT(dstFormat
== &_mesa_texformat_rgba
||
1013 dstFormat
== &_mesa_texformat_rgb
||
1014 dstFormat
== &_mesa_texformat_alpha
||
1015 dstFormat
== &_mesa_texformat_luminance
||
1016 dstFormat
== &_mesa_texformat_luminance_alpha
||
1017 dstFormat
== &_mesa_texformat_intensity
);
1018 ASSERT(baseInternalFormat
== GL_RGBA
||
1019 baseInternalFormat
== GL_RGB
||
1020 baseInternalFormat
== GL_ALPHA
||
1021 baseInternalFormat
== GL_LUMINANCE
||
1022 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
1023 baseInternalFormat
== GL_INTENSITY
);
1024 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLchan
));
1026 if (!ctx
->_ImageTransferState
&&
1027 !srcPacking
->SwapBytes
&&
1028 baseInternalFormat
== srcFormat
&&
1029 srcType
== CHAN_TYPE
) {
1030 /* simple memcpy path */
1031 memcpy_texture(ctx
, dims
,
1032 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1035 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1036 srcAddr
, srcPacking
);
1038 else if (!ctx
->_ImageTransferState
&&
1039 !srcPacking
->SwapBytes
&&
1040 dstFormat
== &_mesa_texformat_rgb
&&
1041 srcFormat
== GL_RGBA
&&
1042 srcType
== CHAN_TYPE
) {
1043 /* extract RGB from RGBA */
1044 GLint img
, row
, col
;
1045 for (img
= 0; img
< srcDepth
; img
++) {
1046 GLchan
*dstImage
= (GLchan
*)
1047 ((GLubyte
*) dstAddr
1048 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1049 + dstYoffset
* dstRowStride
1050 + dstXoffset
* dstFormat
->TexelBytes
);
1052 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1053 srcWidth
, srcFormat
, srcType
);
1054 GLchan
*srcRow
= (GLchan
*) _mesa_image_address(dims
, srcPacking
,
1055 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1056 GLchan
*dstRow
= dstImage
;
1057 for (row
= 0; row
< srcHeight
; row
++) {
1058 for (col
= 0; col
< srcWidth
; col
++) {
1059 dstRow
[col
* 3 + RCOMP
] = srcRow
[col
* 4 + RCOMP
];
1060 dstRow
[col
* 3 + GCOMP
] = srcRow
[col
* 4 + GCOMP
];
1061 dstRow
[col
* 3 + BCOMP
] = srcRow
[col
* 4 + BCOMP
];
1063 dstRow
+= dstRowStride
/ sizeof(GLchan
);
1064 srcRow
= (GLchan
*) ((GLubyte
*) srcRow
+ srcRowStride
);
1068 else if (!ctx
->_ImageTransferState
&&
1069 CHAN_TYPE
== GL_UNSIGNED_BYTE
&&
1070 (srcType
== GL_UNSIGNED_BYTE
||
1071 srcType
== GL_UNSIGNED_INT_8_8_8_8
||
1072 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) &&
1073 can_swizzle(baseInternalFormat
) &&
1074 can_swizzle(srcFormat
)) {
1076 const GLubyte
*dstmap
;
1079 /* dstmap - how to swizzle from RGBA to dst format:
1081 if (dstFormat
== &_mesa_texformat_rgba
) {
1082 dstmap
= mappings
[IDX_RGBA
].from_rgba
;
1085 else if (dstFormat
== &_mesa_texformat_rgb
) {
1086 dstmap
= mappings
[IDX_RGB
].from_rgba
;
1089 else if (dstFormat
== &_mesa_texformat_alpha
) {
1090 dstmap
= mappings
[IDX_ALPHA
].from_rgba
;
1093 else if (dstFormat
== &_mesa_texformat_luminance
) {
1094 dstmap
= mappings
[IDX_LUMINANCE
].from_rgba
;
1097 else if (dstFormat
== &_mesa_texformat_luminance_alpha
) {
1098 dstmap
= mappings
[IDX_LUMINANCE_ALPHA
].from_rgba
;
1101 else if (dstFormat
== &_mesa_texformat_intensity
) {
1102 dstmap
= mappings
[IDX_INTENSITY
].from_rgba
;
1106 _mesa_problem(ctx
, "Unexpected dstFormat in _mesa_texstore_rgba");
1110 _mesa_swizzle_ubyte_image(ctx
, dims
,
1115 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1116 dstRowStride
, dstImageOffsets
,
1117 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1122 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1124 dstFormat
->BaseFormat
,
1125 srcWidth
, srcHeight
, srcDepth
,
1126 srcFormat
, srcType
, srcAddr
,
1128 const GLchan
*src
= tempImage
;
1133 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1134 bytesPerRow
= srcWidth
* components
* sizeof(GLchan
);
1135 for (img
= 0; img
< srcDepth
; img
++) {
1136 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1137 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1138 + dstYoffset
* dstRowStride
1139 + dstXoffset
* dstFormat
->TexelBytes
;
1140 for (row
= 0; row
< srcHeight
; row
++) {
1141 _mesa_memcpy(dstRow
, src
, bytesPerRow
);
1142 dstRow
+= dstRowStride
;
1143 src
+= srcWidth
* components
;
1147 _mesa_free((void *) tempImage
);
1154 * Store a 32-bit integer depth component texture image.
1157 _mesa_texstore_z32(TEXSTORE_PARAMS
)
1159 const GLuint depthScale
= 0xffffffff;
1161 ASSERT(dstFormat
== &_mesa_texformat_z32
);
1162 ASSERT(dstFormat
->TexelBytes
== sizeof(GLuint
));
1164 if (ctx
->Pixel
.DepthScale
== 1.0f
&&
1165 ctx
->Pixel
.DepthBias
== 0.0f
&&
1166 !srcPacking
->SwapBytes
&&
1167 baseInternalFormat
== GL_DEPTH_COMPONENT
&&
1168 srcFormat
== GL_DEPTH_COMPONENT
&&
1169 srcType
== GL_UNSIGNED_INT
) {
1170 /* simple memcpy path */
1171 memcpy_texture(ctx
, dims
,
1172 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1175 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1176 srcAddr
, srcPacking
);
1181 for (img
= 0; img
< srcDepth
; img
++) {
1182 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1183 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1184 + dstYoffset
* dstRowStride
1185 + dstXoffset
* dstFormat
->TexelBytes
;
1186 for (row
= 0; row
< srcHeight
; row
++) {
1187 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
1188 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
1189 _mesa_unpack_depth_span(ctx
, srcWidth
,
1190 GL_UNSIGNED_INT
, (GLuint
*) dstRow
,
1191 depthScale
, srcType
, src
, srcPacking
);
1192 dstRow
+= dstRowStride
;
1202 * Store a 16-bit integer depth component texture image.
1205 _mesa_texstore_z16(TEXSTORE_PARAMS
)
1207 const GLuint depthScale
= 0xffff;
1209 ASSERT(dstFormat
== &_mesa_texformat_z16
);
1210 ASSERT(dstFormat
->TexelBytes
== sizeof(GLushort
));
1212 if (ctx
->Pixel
.DepthScale
== 1.0f
&&
1213 ctx
->Pixel
.DepthBias
== 0.0f
&&
1214 !srcPacking
->SwapBytes
&&
1215 baseInternalFormat
== GL_DEPTH_COMPONENT
&&
1216 srcFormat
== GL_DEPTH_COMPONENT
&&
1217 srcType
== GL_UNSIGNED_SHORT
) {
1218 /* simple memcpy path */
1219 memcpy_texture(ctx
, dims
,
1220 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1223 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1224 srcAddr
, srcPacking
);
1229 for (img
= 0; img
< srcDepth
; img
++) {
1230 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1231 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1232 + dstYoffset
* dstRowStride
1233 + dstXoffset
* dstFormat
->TexelBytes
;
1234 for (row
= 0; row
< srcHeight
; row
++) {
1235 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
1236 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
1237 GLushort
*dst16
= (GLushort
*) dstRow
;
1238 _mesa_unpack_depth_span(ctx
, srcWidth
,
1239 GL_UNSIGNED_SHORT
, dst16
, depthScale
,
1240 srcType
, src
, srcPacking
);
1241 dstRow
+= dstRowStride
;
1250 * Store an rgb565 or rgb565_rev texture image.
1253 _mesa_texstore_rgb565(TEXSTORE_PARAMS
)
1255 ASSERT(dstFormat
== &_mesa_texformat_rgb565
||
1256 dstFormat
== &_mesa_texformat_rgb565_rev
);
1257 ASSERT(dstFormat
->TexelBytes
== 2);
1259 if (!ctx
->_ImageTransferState
&&
1260 !srcPacking
->SwapBytes
&&
1261 dstFormat
== &_mesa_texformat_rgb565
&&
1262 baseInternalFormat
== GL_RGB
&&
1263 srcFormat
== GL_RGB
&&
1264 srcType
== GL_UNSIGNED_SHORT_5_6_5
) {
1265 /* simple memcpy path */
1266 memcpy_texture(ctx
, dims
,
1267 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1270 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1271 srcAddr
, srcPacking
);
1273 else if (!ctx
->_ImageTransferState
&&
1274 !srcPacking
->SwapBytes
&&
1275 baseInternalFormat
== GL_RGB
&&
1276 srcFormat
== GL_RGB
&&
1277 srcType
== GL_UNSIGNED_BYTE
&&
1279 /* do optimized tex store */
1280 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
, srcWidth
,
1281 srcFormat
, srcType
);
1282 const GLubyte
*src
= (const GLubyte
*)
1283 _mesa_image_address(dims
, srcPacking
, srcAddr
, srcWidth
, srcHeight
,
1284 srcFormat
, srcType
, 0, 0, 0);
1285 GLubyte
*dst
= (GLubyte
*) dstAddr
1286 + dstYoffset
* dstRowStride
1287 + dstXoffset
* dstFormat
->TexelBytes
;
1289 for (row
= 0; row
< srcHeight
; row
++) {
1290 const GLubyte
*srcUB
= (const GLubyte
*) src
;
1291 GLushort
*dstUS
= (GLushort
*) dst
;
1292 /* check for byteswapped format */
1293 if (dstFormat
== &_mesa_texformat_rgb565
) {
1294 for (col
= 0; col
< srcWidth
; col
++) {
1295 dstUS
[col
] = PACK_COLOR_565( srcUB
[0], srcUB
[1], srcUB
[2] );
1300 for (col
= 0; col
< srcWidth
; col
++) {
1301 dstUS
[col
] = PACK_COLOR_565_REV( srcUB
[0], srcUB
[1], srcUB
[2] );
1305 dst
+= dstRowStride
;
1306 src
+= srcRowStride
;
1311 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1313 dstFormat
->BaseFormat
,
1314 srcWidth
, srcHeight
, srcDepth
,
1315 srcFormat
, srcType
, srcAddr
,
1317 const GLchan
*src
= tempImage
;
1318 GLint img
, row
, col
;
1321 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1322 for (img
= 0; img
< srcDepth
; img
++) {
1323 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1324 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1325 + dstYoffset
* dstRowStride
1326 + dstXoffset
* dstFormat
->TexelBytes
;
1327 for (row
= 0; row
< srcHeight
; row
++) {
1328 GLushort
*dstUS
= (GLushort
*) dstRow
;
1329 /* check for byteswapped format */
1330 if (dstFormat
== &_mesa_texformat_rgb565
) {
1331 for (col
= 0; col
< srcWidth
; col
++) {
1332 dstUS
[col
] = PACK_COLOR_565( CHAN_TO_UBYTE(src
[RCOMP
]),
1333 CHAN_TO_UBYTE(src
[GCOMP
]),
1334 CHAN_TO_UBYTE(src
[BCOMP
]) );
1339 for (col
= 0; col
< srcWidth
; col
++) {
1340 dstUS
[col
] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src
[RCOMP
]),
1341 CHAN_TO_UBYTE(src
[GCOMP
]),
1342 CHAN_TO_UBYTE(src
[BCOMP
]) );
1346 dstRow
+= dstRowStride
;
1349 _mesa_free((void *) tempImage
);
1356 * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
1359 _mesa_texstore_rgba8888(TEXSTORE_PARAMS
)
1361 const GLboolean littleEndian
= _mesa_little_endian();
1363 ASSERT(dstFormat
== &_mesa_texformat_rgba8888
||
1364 dstFormat
== &_mesa_texformat_rgba8888_rev
);
1365 ASSERT(dstFormat
->TexelBytes
== 4);
1367 if (!ctx
->_ImageTransferState
&&
1368 !srcPacking
->SwapBytes
&&
1369 dstFormat
== &_mesa_texformat_rgba8888
&&
1370 baseInternalFormat
== GL_RGBA
&&
1371 ((srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_INT_8_8_8_8
) ||
1372 (srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_BYTE
&& !littleEndian
) ||
1373 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
1374 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_BYTE
&& littleEndian
))) {
1375 /* simple memcpy path */
1376 memcpy_texture(ctx
, dims
,
1377 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1380 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1381 srcAddr
, srcPacking
);
1383 else if (!ctx
->_ImageTransferState
&&
1384 !srcPacking
->SwapBytes
&&
1385 dstFormat
== &_mesa_texformat_rgba8888_rev
&&
1386 baseInternalFormat
== GL_RGBA
&&
1387 ((srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
1388 (srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_BYTE
&& littleEndian
) ||
1389 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_INT_8_8_8_8
) ||
1390 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_BYTE
&& !littleEndian
))) {
1391 /* simple memcpy path */
1392 memcpy_texture(ctx
, dims
,
1393 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1396 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1397 srcAddr
, srcPacking
);
1399 else if (!ctx
->_ImageTransferState
&&
1400 (srcType
== GL_UNSIGNED_BYTE
||
1401 srcType
== GL_UNSIGNED_INT_8_8_8_8
||
1402 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) &&
1403 can_swizzle(baseInternalFormat
) &&
1404 can_swizzle(srcFormat
)) {
1408 /* dstmap - how to swizzle from RGBA to dst format:
1410 if ((littleEndian
&& dstFormat
== &_mesa_texformat_rgba8888
) ||
1411 (!littleEndian
&& dstFormat
== &_mesa_texformat_rgba8888_rev
)) {
1424 _mesa_swizzle_ubyte_image(ctx
, dims
,
1429 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1430 dstRowStride
, dstImageOffsets
,
1431 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1436 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1438 dstFormat
->BaseFormat
,
1439 srcWidth
, srcHeight
, srcDepth
,
1440 srcFormat
, srcType
, srcAddr
,
1442 const GLchan
*src
= tempImage
;
1443 GLint img
, row
, col
;
1446 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1447 for (img
= 0; img
< srcDepth
; img
++) {
1448 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1449 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1450 + dstYoffset
* dstRowStride
1451 + dstXoffset
* dstFormat
->TexelBytes
;
1452 for (row
= 0; row
< srcHeight
; row
++) {
1453 GLuint
*dstUI
= (GLuint
*) dstRow
;
1454 if (dstFormat
== &_mesa_texformat_rgba8888
) {
1455 for (col
= 0; col
< srcWidth
; col
++) {
1456 dstUI
[col
] = PACK_COLOR_8888( CHAN_TO_UBYTE(src
[RCOMP
]),
1457 CHAN_TO_UBYTE(src
[GCOMP
]),
1458 CHAN_TO_UBYTE(src
[BCOMP
]),
1459 CHAN_TO_UBYTE(src
[ACOMP
]) );
1464 for (col
= 0; col
< srcWidth
; col
++) {
1465 dstUI
[col
] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src
[RCOMP
]),
1466 CHAN_TO_UBYTE(src
[GCOMP
]),
1467 CHAN_TO_UBYTE(src
[BCOMP
]),
1468 CHAN_TO_UBYTE(src
[ACOMP
]) );
1472 dstRow
+= dstRowStride
;
1475 _mesa_free((void *) tempImage
);
1482 _mesa_texstore_argb8888(TEXSTORE_PARAMS
)
1484 const GLboolean littleEndian
= _mesa_little_endian();
1486 ASSERT(dstFormat
== &_mesa_texformat_argb8888
||
1487 dstFormat
== &_mesa_texformat_argb8888_rev
);
1488 ASSERT(dstFormat
->TexelBytes
== 4);
1490 if (!ctx
->_ImageTransferState
&&
1491 !srcPacking
->SwapBytes
&&
1492 dstFormat
== &_mesa_texformat_argb8888
&&
1493 baseInternalFormat
== GL_RGBA
&&
1494 srcFormat
== GL_BGRA
&&
1495 ((srcType
== GL_UNSIGNED_BYTE
&& littleEndian
) ||
1496 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
)) {
1497 /* simple memcpy path (little endian) */
1498 memcpy_texture(ctx
, dims
,
1499 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1502 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1503 srcAddr
, srcPacking
);
1505 else if (!ctx
->_ImageTransferState
&&
1506 !srcPacking
->SwapBytes
&&
1507 dstFormat
== &_mesa_texformat_argb8888_rev
&&
1508 baseInternalFormat
== GL_RGBA
&&
1509 srcFormat
== GL_BGRA
&&
1510 ((srcType
== GL_UNSIGNED_BYTE
&& !littleEndian
) ||
1511 srcType
== GL_UNSIGNED_INT_8_8_8_8
)) {
1512 /* simple memcpy path (big endian) */
1513 memcpy_texture(ctx
, dims
,
1514 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1517 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1518 srcAddr
, srcPacking
);
1520 else if (!ctx
->_ImageTransferState
&&
1521 !srcPacking
->SwapBytes
&&
1522 dstFormat
== &_mesa_texformat_argb8888
&&
1523 srcFormat
== GL_RGB
&&
1524 (baseInternalFormat
== GL_RGBA
||
1525 baseInternalFormat
== GL_RGB
) &&
1526 srcType
== GL_UNSIGNED_BYTE
) {
1528 for (img
= 0; img
< srcDepth
; img
++) {
1529 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1530 srcWidth
, srcFormat
, srcType
);
1531 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1532 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1533 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1534 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1535 + dstYoffset
* dstRowStride
1536 + dstXoffset
* dstFormat
->TexelBytes
;
1537 for (row
= 0; row
< srcHeight
; row
++) {
1538 GLuint
*d4
= (GLuint
*) dstRow
;
1539 for (col
= 0; col
< srcWidth
; col
++) {
1540 d4
[col
] = PACK_COLOR_8888(0xff,
1541 srcRow
[col
* 3 + RCOMP
],
1542 srcRow
[col
* 3 + GCOMP
],
1543 srcRow
[col
* 3 + BCOMP
]);
1545 dstRow
+= dstRowStride
;
1546 srcRow
+= srcRowStride
;
1550 else if (!ctx
->_ImageTransferState
&&
1551 !srcPacking
->SwapBytes
&&
1552 dstFormat
== &_mesa_texformat_argb8888
&&
1553 srcFormat
== GL_RGBA
&&
1554 baseInternalFormat
== GL_RGBA
&&
1555 srcType
== GL_UNSIGNED_BYTE
) {
1556 /* same as above case, but src data has alpha too */
1557 GLint img
, row
, col
;
1558 /* For some reason, streaming copies to write-combined regions
1559 * are extremely sensitive to the characteristics of how the
1560 * source data is retrieved. By reordering the source reads to
1561 * be in-order, the speed of this operation increases by half.
1562 * Strangely the same isn't required for the RGB path, above.
1564 for (img
= 0; img
< srcDepth
; img
++) {
1565 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1566 srcWidth
, srcFormat
, srcType
);
1567 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1568 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1569 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1570 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1571 + dstYoffset
* dstRowStride
1572 + dstXoffset
* dstFormat
->TexelBytes
;
1573 for (row
= 0; row
< srcHeight
; row
++) {
1574 GLuint
*d4
= (GLuint
*) dstRow
;
1575 for (col
= 0; col
< srcWidth
; col
++) {
1576 d4
[col
] = PACK_COLOR_8888(srcRow
[col
* 4 + ACOMP
],
1577 srcRow
[col
* 4 + RCOMP
],
1578 srcRow
[col
* 4 + GCOMP
],
1579 srcRow
[col
* 4 + BCOMP
]);
1581 dstRow
+= dstRowStride
;
1582 srcRow
+= srcRowStride
;
1586 else if (!ctx
->_ImageTransferState
&&
1587 (srcType
== GL_UNSIGNED_BYTE
||
1588 srcType
== GL_UNSIGNED_INT_8_8_8_8
||
1589 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) &&
1590 can_swizzle(baseInternalFormat
) &&
1591 can_swizzle(srcFormat
)) {
1595 /* dstmap - how to swizzle from RGBA to dst format:
1597 if ((littleEndian
&& dstFormat
== &_mesa_texformat_argb8888
) ||
1598 (!littleEndian
&& dstFormat
== &_mesa_texformat_argb8888_rev
)) {
1599 dstmap
[3] = 3; /* alpha */
1600 dstmap
[2] = 0; /* red */
1601 dstmap
[1] = 1; /* green */
1602 dstmap
[0] = 2; /* blue */
1605 assert((littleEndian
&& dstFormat
== &_mesa_texformat_argb8888_rev
) ||
1606 (!littleEndian
&& dstFormat
== &_mesa_texformat_argb8888
));
1613 _mesa_swizzle_ubyte_image(ctx
, dims
,
1619 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1622 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1627 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1629 dstFormat
->BaseFormat
,
1630 srcWidth
, srcHeight
, srcDepth
,
1631 srcFormat
, srcType
, srcAddr
,
1633 const GLchan
*src
= tempImage
;
1634 GLint img
, row
, col
;
1637 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1638 for (img
= 0; img
< srcDepth
; img
++) {
1639 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1640 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1641 + dstYoffset
* dstRowStride
1642 + dstXoffset
* dstFormat
->TexelBytes
;
1643 for (row
= 0; row
< srcHeight
; row
++) {
1644 GLuint
*dstUI
= (GLuint
*) dstRow
;
1645 if (dstFormat
== &_mesa_texformat_argb8888
) {
1646 for (col
= 0; col
< srcWidth
; col
++) {
1647 dstUI
[col
] = PACK_COLOR_8888( CHAN_TO_UBYTE(src
[ACOMP
]),
1648 CHAN_TO_UBYTE(src
[RCOMP
]),
1649 CHAN_TO_UBYTE(src
[GCOMP
]),
1650 CHAN_TO_UBYTE(src
[BCOMP
]) );
1655 for (col
= 0; col
< srcWidth
; col
++) {
1656 dstUI
[col
] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
1657 CHAN_TO_UBYTE(src
[RCOMP
]),
1658 CHAN_TO_UBYTE(src
[GCOMP
]),
1659 CHAN_TO_UBYTE(src
[BCOMP
]) );
1663 dstRow
+= dstRowStride
;
1666 _mesa_free((void *) tempImage
);
1673 _mesa_texstore_rgb888(TEXSTORE_PARAMS
)
1675 const GLboolean littleEndian
= _mesa_little_endian();
1677 ASSERT(dstFormat
== &_mesa_texformat_rgb888
);
1678 ASSERT(dstFormat
->TexelBytes
== 3);
1680 if (!ctx
->_ImageTransferState
&&
1681 !srcPacking
->SwapBytes
&&
1682 baseInternalFormat
== GL_RGB
&&
1683 srcFormat
== GL_BGR
&&
1684 srcType
== GL_UNSIGNED_BYTE
&&
1686 /* simple memcpy path */
1687 memcpy_texture(ctx
, dims
,
1688 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1691 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1692 srcAddr
, srcPacking
);
1694 else if (!ctx
->_ImageTransferState
&&
1695 !srcPacking
->SwapBytes
&&
1696 srcFormat
== GL_RGBA
&&
1697 srcType
== GL_UNSIGNED_BYTE
) {
1698 /* extract RGB from RGBA */
1699 GLint img
, row
, col
;
1700 for (img
= 0; img
< srcDepth
; img
++) {
1701 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1702 srcWidth
, srcFormat
, srcType
);
1703 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1704 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1705 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1706 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1707 + dstYoffset
* dstRowStride
1708 + dstXoffset
* dstFormat
->TexelBytes
;
1709 for (row
= 0; row
< srcHeight
; row
++) {
1710 for (col
= 0; col
< srcWidth
; col
++) {
1711 dstRow
[col
* 3 + 0] = srcRow
[col
* 4 + BCOMP
];
1712 dstRow
[col
* 3 + 1] = srcRow
[col
* 4 + GCOMP
];
1713 dstRow
[col
* 3 + 2] = srcRow
[col
* 4 + RCOMP
];
1715 dstRow
+= dstRowStride
;
1716 srcRow
+= srcRowStride
;
1720 else if (!ctx
->_ImageTransferState
&&
1721 srcType
== GL_UNSIGNED_BYTE
&&
1722 can_swizzle(baseInternalFormat
) &&
1723 can_swizzle(srcFormat
)) {
1727 /* dstmap - how to swizzle from RGBA to dst format:
1732 dstmap
[3] = ONE
; /* ? */
1734 _mesa_swizzle_ubyte_image(ctx
, dims
,
1739 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1740 dstRowStride
, dstImageOffsets
,
1741 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1746 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1748 dstFormat
->BaseFormat
,
1749 srcWidth
, srcHeight
, srcDepth
,
1750 srcFormat
, srcType
, srcAddr
,
1752 const GLchan
*src
= (const GLchan
*) tempImage
;
1753 GLint img
, row
, col
;
1756 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1757 for (img
= 0; img
< srcDepth
; img
++) {
1758 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1759 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1760 + dstYoffset
* dstRowStride
1761 + dstXoffset
* dstFormat
->TexelBytes
;
1762 for (row
= 0; row
< srcHeight
; row
++) {
1765 for (col
= 0; col
< srcWidth
; col
++) {
1766 dstRow
[col
* 3 + 0] = CHAN_TO_UBYTE(src
[RCOMP
]);
1767 dstRow
[col
* 3 + 1] = CHAN_TO_UBYTE(src
[GCOMP
]);
1768 dstRow
[col
* 3 + 2] = CHAN_TO_UBYTE(src
[BCOMP
]);
1773 for (col
= 0; col
< srcWidth
; col
++) {
1774 dstRow
[col
* 3 + 0] = srcUB
[BCOMP
];
1775 dstRow
[col
* 3 + 1] = srcUB
[GCOMP
];
1776 dstRow
[col
* 3 + 2] = srcUB
[RCOMP
];
1781 for (col
= 0; col
< srcWidth
; col
++) {
1782 dstRow
[col
* 3 + 0] = CHAN_TO_UBYTE(src
[BCOMP
]);
1783 dstRow
[col
* 3 + 1] = CHAN_TO_UBYTE(src
[GCOMP
]);
1784 dstRow
[col
* 3 + 2] = CHAN_TO_UBYTE(src
[RCOMP
]);
1788 dstRow
+= dstRowStride
;
1791 _mesa_free((void *) tempImage
);
1798 _mesa_texstore_bgr888(TEXSTORE_PARAMS
)
1800 const GLboolean littleEndian
= _mesa_little_endian();
1802 ASSERT(dstFormat
== &_mesa_texformat_bgr888
);
1803 ASSERT(dstFormat
->TexelBytes
== 3);
1805 if (!ctx
->_ImageTransferState
&&
1806 !srcPacking
->SwapBytes
&&
1807 baseInternalFormat
== GL_RGB
&&
1808 srcFormat
== GL_RGB
&&
1809 srcType
== GL_UNSIGNED_BYTE
&&
1811 /* simple memcpy path */
1812 memcpy_texture(ctx
, dims
,
1813 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1816 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1817 srcAddr
, srcPacking
);
1819 else if (!ctx
->_ImageTransferState
&&
1820 !srcPacking
->SwapBytes
&&
1821 srcFormat
== GL_RGBA
&&
1822 srcType
== GL_UNSIGNED_BYTE
) {
1823 /* extract BGR from RGBA */
1825 for (img
= 0; img
< srcDepth
; img
++) {
1826 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1827 srcWidth
, srcFormat
, srcType
);
1828 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1829 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1830 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1831 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1832 + dstYoffset
* dstRowStride
1833 + dstXoffset
* dstFormat
->TexelBytes
;
1834 for (row
= 0; row
< srcHeight
; row
++) {
1835 for (col
= 0; col
< srcWidth
; col
++) {
1836 dstRow
[col
* 3 + 0] = srcRow
[col
* 4 + RCOMP
];
1837 dstRow
[col
* 3 + 1] = srcRow
[col
* 4 + GCOMP
];
1838 dstRow
[col
* 3 + 2] = srcRow
[col
* 4 + BCOMP
];
1840 dstRow
+= dstRowStride
;
1841 srcRow
+= srcRowStride
;
1845 else if (!ctx
->_ImageTransferState
&&
1846 srcType
== GL_UNSIGNED_BYTE
&&
1847 can_swizzle(baseInternalFormat
) &&
1848 can_swizzle(srcFormat
)) {
1852 /* dstmap - how to swizzle from RGBA to dst format:
1857 dstmap
[3] = ONE
; /* ? */
1859 _mesa_swizzle_ubyte_image(ctx
, dims
,
1864 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1865 dstRowStride
, dstImageOffsets
,
1866 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1871 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1873 dstFormat
->BaseFormat
,
1874 srcWidth
, srcHeight
, srcDepth
,
1875 srcFormat
, srcType
, srcAddr
,
1877 const GLchan
*src
= (const GLchan
*) tempImage
;
1878 GLint img
, row
, col
;
1881 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1882 for (img
= 0; img
< srcDepth
; img
++) {
1883 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1884 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1885 + dstYoffset
* dstRowStride
1886 + dstXoffset
* dstFormat
->TexelBytes
;
1887 for (row
= 0; row
< srcHeight
; row
++) {
1888 for (col
= 0; col
< srcWidth
; col
++) {
1889 dstRow
[col
* 3 + 0] = CHAN_TO_UBYTE(src
[RCOMP
]);
1890 dstRow
[col
* 3 + 1] = CHAN_TO_UBYTE(src
[GCOMP
]);
1891 dstRow
[col
* 3 + 2] = CHAN_TO_UBYTE(src
[BCOMP
]);
1894 dstRow
+= dstRowStride
;
1897 _mesa_free((void *) tempImage
);
1903 _mesa_texstore_rgba4444(TEXSTORE_PARAMS
)
1905 ASSERT(dstFormat
== &_mesa_texformat_rgba4444
);
1906 ASSERT(dstFormat
->TexelBytes
== 2);
1908 if (!ctx
->_ImageTransferState
&&
1909 !srcPacking
->SwapBytes
&&
1910 dstFormat
== &_mesa_texformat_rgba4444
&&
1911 baseInternalFormat
== GL_RGBA
&&
1912 srcFormat
== GL_RGBA
&&
1913 srcType
== GL_UNSIGNED_SHORT_4_4_4_4
){
1914 /* simple memcpy path */
1915 memcpy_texture(ctx
, dims
,
1916 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1919 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1920 srcAddr
, srcPacking
);
1924 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1926 dstFormat
->BaseFormat
,
1927 srcWidth
, srcHeight
, srcDepth
,
1928 srcFormat
, srcType
, srcAddr
,
1930 const GLchan
*src
= tempImage
;
1931 GLint img
, row
, col
;
1934 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1935 for (img
= 0; img
< srcDepth
; img
++) {
1936 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1937 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1938 + dstYoffset
* dstRowStride
1939 + dstXoffset
* dstFormat
->TexelBytes
;
1940 for (row
= 0; row
< srcHeight
; row
++) {
1941 GLushort
*dstUS
= (GLushort
*) dstRow
;
1942 for (col
= 0; col
< srcWidth
; col
++) {
1943 dstUS
[col
] = PACK_COLOR_4444( CHAN_TO_UBYTE(src
[RCOMP
]),
1944 CHAN_TO_UBYTE(src
[GCOMP
]),
1945 CHAN_TO_UBYTE(src
[BCOMP
]),
1946 CHAN_TO_UBYTE(src
[ACOMP
]) );
1949 dstRow
+= dstRowStride
;
1952 _mesa_free((void *) tempImage
);
1958 _mesa_texstore_argb4444(TEXSTORE_PARAMS
)
1960 ASSERT(dstFormat
== &_mesa_texformat_argb4444
||
1961 dstFormat
== &_mesa_texformat_argb4444_rev
);
1962 ASSERT(dstFormat
->TexelBytes
== 2);
1964 if (!ctx
->_ImageTransferState
&&
1965 !srcPacking
->SwapBytes
&&
1966 dstFormat
== &_mesa_texformat_argb4444
&&
1967 baseInternalFormat
== GL_RGBA
&&
1968 srcFormat
== GL_BGRA
&&
1969 srcType
== GL_UNSIGNED_SHORT_4_4_4_4_REV
) {
1970 /* simple memcpy path */
1971 memcpy_texture(ctx
, dims
,
1972 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1975 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1976 srcAddr
, srcPacking
);
1980 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1982 dstFormat
->BaseFormat
,
1983 srcWidth
, srcHeight
, srcDepth
,
1984 srcFormat
, srcType
, srcAddr
,
1986 const GLchan
*src
= tempImage
;
1987 GLint img
, row
, col
;
1990 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1991 for (img
= 0; img
< srcDepth
; img
++) {
1992 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1993 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1994 + dstYoffset
* dstRowStride
1995 + dstXoffset
* dstFormat
->TexelBytes
;
1996 for (row
= 0; row
< srcHeight
; row
++) {
1997 GLushort
*dstUS
= (GLushort
*) dstRow
;
1998 if (dstFormat
== &_mesa_texformat_argb4444
) {
1999 for (col
= 0; col
< srcWidth
; col
++) {
2000 dstUS
[col
] = PACK_COLOR_4444( CHAN_TO_UBYTE(src
[ACOMP
]),
2001 CHAN_TO_UBYTE(src
[RCOMP
]),
2002 CHAN_TO_UBYTE(src
[GCOMP
]),
2003 CHAN_TO_UBYTE(src
[BCOMP
]) );
2008 for (col
= 0; col
< srcWidth
; col
++) {
2009 dstUS
[col
] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
2010 CHAN_TO_UBYTE(src
[RCOMP
]),
2011 CHAN_TO_UBYTE(src
[GCOMP
]),
2012 CHAN_TO_UBYTE(src
[BCOMP
]) );
2016 dstRow
+= dstRowStride
;
2019 _mesa_free((void *) tempImage
);
2025 _mesa_texstore_rgba5551(TEXSTORE_PARAMS
)
2027 ASSERT(dstFormat
== &_mesa_texformat_rgba5551
);
2028 ASSERT(dstFormat
->TexelBytes
== 2);
2030 if (!ctx
->_ImageTransferState
&&
2031 !srcPacking
->SwapBytes
&&
2032 dstFormat
== &_mesa_texformat_rgba5551
&&
2033 baseInternalFormat
== GL_RGBA
&&
2034 srcFormat
== GL_RGBA
&&
2035 srcType
== GL_UNSIGNED_SHORT_5_5_5_1
) {
2036 /* simple memcpy path */
2037 memcpy_texture(ctx
, dims
,
2038 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2041 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2042 srcAddr
, srcPacking
);
2046 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2048 dstFormat
->BaseFormat
,
2049 srcWidth
, srcHeight
, srcDepth
,
2050 srcFormat
, srcType
, srcAddr
,
2052 const GLchan
*src
=tempImage
;
2053 GLint img
, row
, col
;
2056 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2057 for (img
= 0; img
< srcDepth
; img
++) {
2058 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2059 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2060 + dstYoffset
* dstRowStride
2061 + dstXoffset
* dstFormat
->TexelBytes
;
2062 for (row
= 0; row
< srcHeight
; row
++) {
2063 GLushort
*dstUS
= (GLushort
*) dstRow
;
2064 for (col
= 0; col
< srcWidth
; col
++) {
2065 dstUS
[col
] = PACK_COLOR_5551( CHAN_TO_UBYTE(src
[RCOMP
]),
2066 CHAN_TO_UBYTE(src
[GCOMP
]),
2067 CHAN_TO_UBYTE(src
[BCOMP
]),
2068 CHAN_TO_UBYTE(src
[ACOMP
]) );
2071 dstRow
+= dstRowStride
;
2074 _mesa_free((void *) tempImage
);
2080 _mesa_texstore_argb1555(TEXSTORE_PARAMS
)
2082 ASSERT(dstFormat
== &_mesa_texformat_argb1555
||
2083 dstFormat
== &_mesa_texformat_argb1555_rev
);
2084 ASSERT(dstFormat
->TexelBytes
== 2);
2086 if (!ctx
->_ImageTransferState
&&
2087 !srcPacking
->SwapBytes
&&
2088 dstFormat
== &_mesa_texformat_argb1555
&&
2089 baseInternalFormat
== GL_RGBA
&&
2090 srcFormat
== GL_BGRA
&&
2091 srcType
== GL_UNSIGNED_SHORT_1_5_5_5_REV
) {
2092 /* simple memcpy path */
2093 memcpy_texture(ctx
, dims
,
2094 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2097 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2098 srcAddr
, srcPacking
);
2102 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2104 dstFormat
->BaseFormat
,
2105 srcWidth
, srcHeight
, srcDepth
,
2106 srcFormat
, srcType
, srcAddr
,
2108 const GLchan
*src
=tempImage
;
2109 GLint img
, row
, col
;
2112 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2113 for (img
= 0; img
< srcDepth
; img
++) {
2114 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2115 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2116 + dstYoffset
* dstRowStride
2117 + dstXoffset
* dstFormat
->TexelBytes
;
2118 for (row
= 0; row
< srcHeight
; row
++) {
2119 GLushort
*dstUS
= (GLushort
*) dstRow
;
2120 if (dstFormat
== &_mesa_texformat_argb1555
) {
2121 for (col
= 0; col
< srcWidth
; col
++) {
2122 dstUS
[col
] = PACK_COLOR_1555( CHAN_TO_UBYTE(src
[ACOMP
]),
2123 CHAN_TO_UBYTE(src
[RCOMP
]),
2124 CHAN_TO_UBYTE(src
[GCOMP
]),
2125 CHAN_TO_UBYTE(src
[BCOMP
]) );
2130 for (col
= 0; col
< srcWidth
; col
++) {
2131 dstUS
[col
] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
2132 CHAN_TO_UBYTE(src
[RCOMP
]),
2133 CHAN_TO_UBYTE(src
[GCOMP
]),
2134 CHAN_TO_UBYTE(src
[BCOMP
]) );
2138 dstRow
+= dstRowStride
;
2141 _mesa_free((void *) tempImage
);
2148 _mesa_texstore_al88(TEXSTORE_PARAMS
)
2150 const GLboolean littleEndian
= _mesa_little_endian();
2152 ASSERT(dstFormat
== &_mesa_texformat_al88
||
2153 dstFormat
== &_mesa_texformat_al88_rev
);
2154 ASSERT(dstFormat
->TexelBytes
== 2);
2156 if (!ctx
->_ImageTransferState
&&
2157 !srcPacking
->SwapBytes
&&
2158 dstFormat
== &_mesa_texformat_al88
&&
2159 baseInternalFormat
== GL_LUMINANCE_ALPHA
&&
2160 srcFormat
== GL_LUMINANCE_ALPHA
&&
2161 srcType
== GL_UNSIGNED_BYTE
&&
2163 /* simple memcpy path */
2164 memcpy_texture(ctx
, dims
,
2165 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2168 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2169 srcAddr
, srcPacking
);
2171 else if (!ctx
->_ImageTransferState
&&
2173 srcType
== GL_UNSIGNED_BYTE
&&
2174 can_swizzle(baseInternalFormat
) &&
2175 can_swizzle(srcFormat
)) {
2179 /* dstmap - how to swizzle from RGBA to dst format:
2181 if ((littleEndian
&& dstFormat
== &_mesa_texformat_al88
) ||
2182 (!littleEndian
&& dstFormat
== &_mesa_texformat_al88_rev
)) {
2190 dstmap
[2] = ZERO
; /* ? */
2191 dstmap
[3] = ONE
; /* ? */
2193 _mesa_swizzle_ubyte_image(ctx
, dims
,
2198 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2199 dstRowStride
, dstImageOffsets
,
2200 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2205 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2207 dstFormat
->BaseFormat
,
2208 srcWidth
, srcHeight
, srcDepth
,
2209 srcFormat
, srcType
, srcAddr
,
2211 const GLchan
*src
= tempImage
;
2212 GLint img
, row
, col
;
2215 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2216 for (img
= 0; img
< srcDepth
; img
++) {
2217 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2218 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2219 + dstYoffset
* dstRowStride
2220 + dstXoffset
* dstFormat
->TexelBytes
;
2221 for (row
= 0; row
< srcHeight
; row
++) {
2222 GLushort
*dstUS
= (GLushort
*) dstRow
;
2223 if (dstFormat
== &_mesa_texformat_al88
) {
2224 for (col
= 0; col
< srcWidth
; col
++) {
2225 /* src[0] is luminance, src[1] is alpha */
2226 dstUS
[col
] = PACK_COLOR_88( CHAN_TO_UBYTE(src
[1]),
2227 CHAN_TO_UBYTE(src
[0]) );
2232 for (col
= 0; col
< srcWidth
; col
++) {
2233 /* src[0] is luminance, src[1] is alpha */
2234 dstUS
[col
] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src
[1]),
2235 CHAN_TO_UBYTE(src
[0]) );
2239 dstRow
+= dstRowStride
;
2242 _mesa_free((void *) tempImage
);
2249 _mesa_texstore_rgb332(TEXSTORE_PARAMS
)
2251 ASSERT(dstFormat
== &_mesa_texformat_rgb332
);
2252 ASSERT(dstFormat
->TexelBytes
== 1);
2254 if (!ctx
->_ImageTransferState
&&
2255 !srcPacking
->SwapBytes
&&
2256 baseInternalFormat
== GL_RGB
&&
2257 srcFormat
== GL_RGB
&& srcType
== GL_UNSIGNED_BYTE_3_3_2
) {
2258 /* simple memcpy path */
2259 memcpy_texture(ctx
, dims
,
2260 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2263 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2264 srcAddr
, srcPacking
);
2268 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2270 dstFormat
->BaseFormat
,
2271 srcWidth
, srcHeight
, srcDepth
,
2272 srcFormat
, srcType
, srcAddr
,
2274 const GLchan
*src
= tempImage
;
2275 GLint img
, row
, col
;
2278 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2279 for (img
= 0; img
< srcDepth
; img
++) {
2280 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2281 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2282 + dstYoffset
* dstRowStride
2283 + dstXoffset
* dstFormat
->TexelBytes
;
2284 for (row
= 0; row
< srcHeight
; row
++) {
2285 for (col
= 0; col
< srcWidth
; col
++) {
2286 dstRow
[col
] = PACK_COLOR_332( CHAN_TO_UBYTE(src
[RCOMP
]),
2287 CHAN_TO_UBYTE(src
[GCOMP
]),
2288 CHAN_TO_UBYTE(src
[BCOMP
]) );
2291 dstRow
+= dstRowStride
;
2294 _mesa_free((void *) tempImage
);
2301 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
2304 _mesa_texstore_a8(TEXSTORE_PARAMS
)
2306 ASSERT(dstFormat
== &_mesa_texformat_a8
||
2307 dstFormat
== &_mesa_texformat_l8
||
2308 dstFormat
== &_mesa_texformat_i8
);
2309 ASSERT(dstFormat
->TexelBytes
== 1);
2311 if (!ctx
->_ImageTransferState
&&
2312 !srcPacking
->SwapBytes
&&
2313 baseInternalFormat
== srcFormat
&&
2314 srcType
== GL_UNSIGNED_BYTE
) {
2315 /* simple memcpy path */
2316 memcpy_texture(ctx
, dims
,
2317 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2320 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2321 srcAddr
, srcPacking
);
2323 else if (!ctx
->_ImageTransferState
&&
2324 srcType
== GL_UNSIGNED_BYTE
&&
2325 can_swizzle(baseInternalFormat
) &&
2326 can_swizzle(srcFormat
)) {
2330 /* dstmap - how to swizzle from RGBA to dst format:
2332 if (dstFormat
== &_mesa_texformat_a8
) {
2338 dstmap
[1] = ZERO
; /* ? */
2339 dstmap
[2] = ZERO
; /* ? */
2340 dstmap
[3] = ONE
; /* ? */
2342 _mesa_swizzle_ubyte_image(ctx
, dims
,
2347 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2348 dstRowStride
, dstImageOffsets
,
2349 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2354 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2356 dstFormat
->BaseFormat
,
2357 srcWidth
, srcHeight
, srcDepth
,
2358 srcFormat
, srcType
, srcAddr
,
2360 const GLchan
*src
= tempImage
;
2361 GLint img
, row
, col
;
2364 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2365 for (img
= 0; img
< srcDepth
; img
++) {
2366 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2367 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2368 + dstYoffset
* dstRowStride
2369 + dstXoffset
* dstFormat
->TexelBytes
;
2370 for (row
= 0; row
< srcHeight
; row
++) {
2371 for (col
= 0; col
< srcWidth
; col
++) {
2372 dstRow
[col
] = CHAN_TO_UBYTE(src
[col
]);
2374 dstRow
+= dstRowStride
;
2378 _mesa_free((void *) tempImage
);
2386 _mesa_texstore_ci8(TEXSTORE_PARAMS
)
2388 (void) dims
; (void) baseInternalFormat
;
2389 ASSERT(dstFormat
== &_mesa_texformat_ci8
);
2390 ASSERT(dstFormat
->TexelBytes
== 1);
2391 ASSERT(baseInternalFormat
== GL_COLOR_INDEX
);
2393 if (!ctx
->_ImageTransferState
&&
2394 !srcPacking
->SwapBytes
&&
2395 srcFormat
== GL_COLOR_INDEX
&&
2396 srcType
== GL_UNSIGNED_BYTE
) {
2397 /* simple memcpy path */
2398 memcpy_texture(ctx
, dims
,
2399 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2402 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2403 srcAddr
, srcPacking
);
2408 for (img
= 0; img
< srcDepth
; img
++) {
2409 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2410 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2411 + dstYoffset
* dstRowStride
2412 + dstXoffset
* dstFormat
->TexelBytes
;
2413 for (row
= 0; row
< srcHeight
; row
++) {
2414 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
2415 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
2416 _mesa_unpack_index_span(ctx
, srcWidth
, GL_UNSIGNED_BYTE
, dstRow
,
2417 srcType
, src
, srcPacking
,
2418 ctx
->_ImageTransferState
);
2419 dstRow
+= dstRowStride
;
2428 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_rev.
2431 _mesa_texstore_ycbcr(TEXSTORE_PARAMS
)
2433 const GLboolean littleEndian
= _mesa_little_endian();
2434 (void) ctx
; (void) dims
; (void) baseInternalFormat
;
2436 ASSERT((dstFormat
== &_mesa_texformat_ycbcr
) ||
2437 (dstFormat
== &_mesa_texformat_ycbcr_rev
));
2438 ASSERT(dstFormat
->TexelBytes
== 2);
2439 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
2440 ASSERT(srcFormat
== GL_YCBCR_MESA
);
2441 ASSERT((srcType
== GL_UNSIGNED_SHORT_8_8_MESA
) ||
2442 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
));
2443 ASSERT(baseInternalFormat
== GL_YCBCR_MESA
);
2445 /* always just memcpy since no pixel transfer ops apply */
2446 memcpy_texture(ctx
, dims
,
2447 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2450 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2451 srcAddr
, srcPacking
);
2453 /* Check if we need byte swapping */
2454 /* XXX the logic here _might_ be wrong */
2455 if (srcPacking
->SwapBytes
^
2456 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
) ^
2457 (dstFormat
== &_mesa_texformat_ycbcr_rev
) ^
2460 for (img
= 0; img
< srcDepth
; img
++) {
2461 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2462 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2463 + dstYoffset
* dstRowStride
2464 + dstXoffset
* dstFormat
->TexelBytes
;
2465 for (row
= 0; row
< srcHeight
; row
++) {
2466 _mesa_swap2((GLushort
*) dstRow
, srcWidth
);
2467 dstRow
+= dstRowStride
;
2475 _mesa_texstore_dudv8(TEXSTORE_PARAMS
)
2477 const GLboolean littleEndian
= _mesa_little_endian();
2479 ASSERT(dstFormat
== &_mesa_texformat_dudv8
);
2480 ASSERT(dstFormat
->TexelBytes
== 2);
2481 ASSERT(ctx
->Extensions
.ATI_envmap_bumpmap
);
2482 ASSERT((srcFormat
== GL_DU8DV8_ATI
) ||
2483 (srcFormat
== GL_DUDV_ATI
));
2484 ASSERT(baseInternalFormat
== GL_DUDV_ATI
);
2486 if (!srcPacking
->SwapBytes
&& srcType
== GL_BYTE
&&
2488 /* simple memcpy path */
2489 memcpy_texture(ctx
, dims
,
2490 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2493 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2494 srcAddr
, srcPacking
);
2496 else if (srcType
== GL_BYTE
) {
2500 /* dstmap - how to swizzle from RGBA to dst format:
2510 dstmap
[2] = ZERO
; /* ? */
2511 dstmap
[3] = ONE
; /* ? */
2513 _mesa_swizzle_ubyte_image(ctx
, dims
,
2514 GL_LUMINANCE_ALPHA
, /* hack */
2515 GL_UNSIGNED_BYTE
, /* hack */
2516 GL_LUMINANCE_ALPHA
, /* hack */
2518 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2519 dstRowStride
, dstImageOffsets
,
2520 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2524 /* general path - note this is defined for 2d textures only */
2525 const GLint components
= _mesa_components_in_format(baseInternalFormat
);
2526 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
2527 srcWidth
, srcFormat
, srcType
);
2528 GLbyte
*tempImage
, *dst
, *src
;
2531 tempImage
= (GLbyte
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
2532 * components
* sizeof(GLbyte
));
2536 src
= (GLbyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2537 srcWidth
, srcHeight
,
2542 for (row
= 0; row
< srcHeight
; row
++) {
2543 _mesa_unpack_dudv_span_byte(ctx
, srcWidth
, baseInternalFormat
,
2544 dst
, srcFormat
, srcType
, src
,
2546 dst
+= srcWidth
* components
;
2551 dst
= (GLbyte
*) dstAddr
2552 + dstYoffset
* dstRowStride
2553 + dstXoffset
* dstFormat
->TexelBytes
;
2554 for (row
= 0; row
< srcHeight
; row
++) {
2555 memcpy(dst
, src
, srcWidth
* dstFormat
->TexelBytes
);
2556 dst
+= dstRowStride
;
2557 src
+= srcWidth
* dstFormat
->TexelBytes
;
2559 _mesa_free((void *) tempImage
);
2565 * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or MESA_FORMAT_SIGNED_RGBA8888_REV
2568 _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS
)
2570 const GLboolean littleEndian
= _mesa_little_endian();
2572 ASSERT(dstFormat
== &_mesa_texformat_signed_rgba8888
||
2573 dstFormat
== &_mesa_texformat_signed_rgba8888_rev
);
2574 ASSERT(dstFormat
->TexelBytes
== 4);
2576 if (!ctx
->_ImageTransferState
&&
2577 !srcPacking
->SwapBytes
&&
2578 dstFormat
== &_mesa_texformat_signed_rgba8888
&&
2579 baseInternalFormat
== GL_RGBA
&&
2580 ((srcFormat
== GL_RGBA
&& srcType
== GL_BYTE
&& !littleEndian
) ||
2581 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_BYTE
&& littleEndian
))) {
2582 /* simple memcpy path */
2583 memcpy_texture(ctx
, dims
,
2584 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2587 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2588 srcAddr
, srcPacking
);
2590 else if (!ctx
->_ImageTransferState
&&
2591 !srcPacking
->SwapBytes
&&
2592 dstFormat
== &_mesa_texformat_signed_rgba8888_rev
&&
2593 baseInternalFormat
== GL_RGBA
&&
2594 ((srcFormat
== GL_RGBA
&& srcType
== GL_BYTE
&& littleEndian
) ||
2595 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_BYTE
&& !littleEndian
))) {
2596 /* simple memcpy path */
2597 memcpy_texture(ctx
, dims
,
2598 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2601 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2602 srcAddr
, srcPacking
);
2604 else if (!ctx
->_ImageTransferState
&&
2605 (srcType
== GL_BYTE
) &&
2606 can_swizzle(baseInternalFormat
) &&
2607 can_swizzle(srcFormat
)) {
2611 /* dstmap - how to swizzle from RGBA to dst format:
2613 if ((littleEndian
&& dstFormat
== &_mesa_texformat_signed_rgba8888
) ||
2614 (!littleEndian
&& dstFormat
== &_mesa_texformat_signed_rgba8888_rev
)) {
2627 _mesa_swizzle_ubyte_image(ctx
, dims
,
2632 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2633 dstRowStride
, dstImageOffsets
,
2634 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2639 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2641 dstFormat
->BaseFormat
,
2642 srcWidth
, srcHeight
, srcDepth
,
2643 srcFormat
, srcType
, srcAddr
,
2645 const GLfloat
*srcRow
= tempImage
;
2646 GLint img
, row
, col
;
2649 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2650 for (img
= 0; img
< srcDepth
; img
++) {
2651 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2652 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2653 + dstYoffset
* dstRowStride
2654 + dstXoffset
* dstFormat
->TexelBytes
;
2655 for (row
= 0; row
< srcHeight
; row
++) {
2656 GLuint
*dstUI
= (GLuint
*) dstRow
;
2657 if (dstFormat
== &_mesa_texformat_signed_rgba8888
) {
2658 for (col
= 0; col
< srcWidth
; col
++) {
2659 dstUI
[col
] = PACK_COLOR_8888( FLOAT_TO_BYTE_TEX(srcRow
[RCOMP
]),
2660 FLOAT_TO_BYTE_TEX(srcRow
[GCOMP
]),
2661 FLOAT_TO_BYTE_TEX(srcRow
[BCOMP
]),
2662 FLOAT_TO_BYTE_TEX(srcRow
[ACOMP
]) );
2667 for (col
= 0; col
< srcWidth
; col
++) {
2668 dstUI
[col
] = PACK_COLOR_8888_REV( FLOAT_TO_BYTE_TEX(srcRow
[RCOMP
]),
2669 FLOAT_TO_BYTE_TEX(srcRow
[GCOMP
]),
2670 FLOAT_TO_BYTE_TEX(srcRow
[BCOMP
]),
2671 FLOAT_TO_BYTE_TEX(srcRow
[ACOMP
]) );
2675 dstRow
+= dstRowStride
;
2678 _mesa_free((void *) tempImage
);
2684 * Store a combined depth/stencil texture image.
2687 _mesa_texstore_z24_s8(TEXSTORE_PARAMS
)
2689 const GLfloat depthScale
= (GLfloat
) 0xffffff;
2690 const GLint srcRowStride
2691 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2695 ASSERT(dstFormat
== &_mesa_texformat_z24_s8
);
2696 ASSERT(srcFormat
== GL_DEPTH_STENCIL_EXT
|| srcFormat
== GL_DEPTH_COMPONENT
);
2697 ASSERT(srcFormat
!= GL_DEPTH_STENCIL_EXT
|| srcType
== GL_UNSIGNED_INT_24_8_EXT
);
2699 /* In case we only upload depth we need to preserve the stencil */
2700 if (srcFormat
== GL_DEPTH_COMPONENT
) {
2701 for (img
= 0; img
< srcDepth
; img
++) {
2702 GLuint
*dstRow
= (GLuint
*) dstAddr
2703 + dstImageOffsets
[dstZoffset
+ img
]
2704 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2707 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2708 srcWidth
, srcHeight
,
2711 for (row
= 0; row
< srcHeight
; row
++) {
2712 GLuint depth
[MAX_WIDTH
];
2714 _mesa_unpack_depth_span(ctx
, srcWidth
,
2715 GL_UNSIGNED_INT
, /* dst type */
2716 depth
, /* dst addr */
2718 srcType
, src
, srcPacking
);
2720 for (i
= 0; i
< srcWidth
; i
++)
2721 dstRow
[i
] = depth
[i
] << 8 | (dstRow
[i
] & 0x000000FF);
2723 src
+= srcRowStride
;
2724 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2728 else if (ctx
->Pixel
.DepthScale
== 1.0f
&&
2729 ctx
->Pixel
.DepthBias
== 0.0f
&&
2730 !srcPacking
->SwapBytes
) {
2732 memcpy_texture(ctx
, dims
,
2733 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2736 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2737 srcAddr
, srcPacking
);
2741 const GLint srcRowStride
2742 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2746 for (img
= 0; img
< srcDepth
; img
++) {
2747 GLuint
*dstRow
= (GLuint
*) dstAddr
2748 + dstImageOffsets
[dstZoffset
+ img
]
2749 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2752 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2753 srcWidth
, srcHeight
,
2756 for (row
= 0; row
< srcHeight
; row
++) {
2757 GLubyte stencil
[MAX_WIDTH
];
2759 /* the 24 depth bits will be in the high position: */
2760 _mesa_unpack_depth_span(ctx
, srcWidth
,
2761 GL_UNSIGNED_INT_24_8_EXT
, /* dst type */
2762 dstRow
, /* dst addr */
2763 (GLuint
) depthScale
,
2764 srcType
, src
, srcPacking
);
2765 /* get the 8-bit stencil values */
2766 _mesa_unpack_stencil_span(ctx
, srcWidth
,
2767 GL_UNSIGNED_BYTE
, /* dst type */
2768 stencil
, /* dst addr */
2769 srcType
, src
, srcPacking
,
2770 ctx
->_ImageTransferState
);
2771 /* merge stencil values into depth values */
2772 for (i
= 0; i
< srcWidth
; i
++)
2773 dstRow
[i
] |= stencil
[i
];
2775 src
+= srcRowStride
;
2776 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2785 * Store a combined depth/stencil texture image.
2788 _mesa_texstore_s8_z24(TEXSTORE_PARAMS
)
2790 const GLuint depthScale
= 0xffffff;
2791 const GLint srcRowStride
2792 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2796 ASSERT(dstFormat
== &_mesa_texformat_s8_z24
);
2797 ASSERT(srcFormat
== GL_DEPTH_STENCIL_EXT
|| srcFormat
== GL_DEPTH_COMPONENT
);
2798 ASSERT(srcFormat
!= GL_DEPTH_STENCIL_EXT
|| srcType
== GL_UNSIGNED_INT_24_8_EXT
);
2800 /* In case we only upload depth we need to preserve the stencil */
2801 if (srcFormat
== GL_DEPTH_COMPONENT
) {
2802 for (img
= 0; img
< srcDepth
; img
++) {
2803 GLuint
*dstRow
= (GLuint
*) dstAddr
2804 + dstImageOffsets
[dstZoffset
+ img
]
2805 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2808 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2809 srcWidth
, srcHeight
,
2812 for (row
= 0; row
< srcHeight
; row
++) {
2813 GLuint depth
[MAX_WIDTH
];
2815 _mesa_unpack_depth_span(ctx
, srcWidth
,
2816 GL_UNSIGNED_INT
, /* dst type */
2817 depth
, /* dst addr */
2819 srcType
, src
, srcPacking
);
2821 for (i
= 0; i
< srcWidth
; i
++)
2822 dstRow
[i
] = depth
[i
] | (dstRow
[i
] & 0xFF000000);
2824 src
+= srcRowStride
;
2825 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2830 for (img
= 0; img
< srcDepth
; img
++) {
2831 GLuint
*dstRow
= (GLuint
*) dstAddr
2832 + dstImageOffsets
[dstZoffset
+ img
]
2833 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2836 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2837 srcWidth
, srcHeight
,
2840 for (row
= 0; row
< srcHeight
; row
++) {
2841 GLubyte stencil
[MAX_WIDTH
];
2843 /* the 24 depth bits will be in the low position: */
2844 _mesa_unpack_depth_span(ctx
, srcWidth
,
2845 GL_UNSIGNED_INT
, /* dst type */
2846 dstRow
, /* dst addr */
2848 srcType
, src
, srcPacking
);
2849 /* get the 8-bit stencil values */
2850 _mesa_unpack_stencil_span(ctx
, srcWidth
,
2851 GL_UNSIGNED_BYTE
, /* dst type */
2852 stencil
, /* dst addr */
2853 srcType
, src
, srcPacking
,
2854 ctx
->_ImageTransferState
);
2855 /* merge stencil values into depth values */
2856 for (i
= 0; i
< srcWidth
; i
++)
2857 dstRow
[i
] |= stencil
[i
] << 24;
2859 src
+= srcRowStride
;
2860 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2868 * Store an image in any of the formats:
2869 * _mesa_texformat_rgba_float32
2870 * _mesa_texformat_rgb_float32
2871 * _mesa_texformat_alpha_float32
2872 * _mesa_texformat_luminance_float32
2873 * _mesa_texformat_luminance_alpha_float32
2874 * _mesa_texformat_intensity_float32
2877 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS
)
2879 const GLint components
= _mesa_components_in_format(dstFormat
->BaseFormat
);
2881 ASSERT(dstFormat
== &_mesa_texformat_rgba_float32
||
2882 dstFormat
== &_mesa_texformat_rgb_float32
||
2883 dstFormat
== &_mesa_texformat_alpha_float32
||
2884 dstFormat
== &_mesa_texformat_luminance_float32
||
2885 dstFormat
== &_mesa_texformat_luminance_alpha_float32
||
2886 dstFormat
== &_mesa_texformat_intensity_float32
);
2887 ASSERT(baseInternalFormat
== GL_RGBA
||
2888 baseInternalFormat
== GL_RGB
||
2889 baseInternalFormat
== GL_ALPHA
||
2890 baseInternalFormat
== GL_LUMINANCE
||
2891 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
2892 baseInternalFormat
== GL_INTENSITY
);
2893 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLfloat
));
2895 if (!ctx
->_ImageTransferState
&&
2896 !srcPacking
->SwapBytes
&&
2897 baseInternalFormat
== srcFormat
&&
2898 srcType
== GL_FLOAT
) {
2899 /* simple memcpy path */
2900 memcpy_texture(ctx
, dims
,
2901 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2904 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2905 srcAddr
, srcPacking
);
2909 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2911 dstFormat
->BaseFormat
,
2912 srcWidth
, srcHeight
, srcDepth
,
2913 srcFormat
, srcType
, srcAddr
,
2915 const GLfloat
*srcRow
= tempImage
;
2920 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2921 bytesPerRow
= srcWidth
* components
* sizeof(GLfloat
);
2922 for (img
= 0; img
< srcDepth
; img
++) {
2923 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2924 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2925 + dstYoffset
* dstRowStride
2926 + dstXoffset
* dstFormat
->TexelBytes
;
2927 for (row
= 0; row
< srcHeight
; row
++) {
2928 _mesa_memcpy(dstRow
, srcRow
, bytesPerRow
);
2929 dstRow
+= dstRowStride
;
2930 srcRow
+= srcWidth
* components
;
2934 _mesa_free((void *) tempImage
);
2941 * As above, but store 16-bit floats.
2944 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS
)
2946 const GLint components
= _mesa_components_in_format(dstFormat
->BaseFormat
);
2948 ASSERT(dstFormat
== &_mesa_texformat_rgba_float16
||
2949 dstFormat
== &_mesa_texformat_rgb_float16
||
2950 dstFormat
== &_mesa_texformat_alpha_float16
||
2951 dstFormat
== &_mesa_texformat_luminance_float16
||
2952 dstFormat
== &_mesa_texformat_luminance_alpha_float16
||
2953 dstFormat
== &_mesa_texformat_intensity_float16
);
2954 ASSERT(baseInternalFormat
== GL_RGBA
||
2955 baseInternalFormat
== GL_RGB
||
2956 baseInternalFormat
== GL_ALPHA
||
2957 baseInternalFormat
== GL_LUMINANCE
||
2958 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
2959 baseInternalFormat
== GL_INTENSITY
);
2960 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLhalfARB
));
2962 if (!ctx
->_ImageTransferState
&&
2963 !srcPacking
->SwapBytes
&&
2964 baseInternalFormat
== srcFormat
&&
2965 srcType
== GL_HALF_FLOAT_ARB
) {
2966 /* simple memcpy path */
2967 memcpy_texture(ctx
, dims
,
2968 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2971 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2972 srcAddr
, srcPacking
);
2976 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2978 dstFormat
->BaseFormat
,
2979 srcWidth
, srcHeight
, srcDepth
,
2980 srcFormat
, srcType
, srcAddr
,
2982 const GLfloat
*src
= tempImage
;
2986 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2987 for (img
= 0; img
< srcDepth
; img
++) {
2988 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2989 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2990 + dstYoffset
* dstRowStride
2991 + dstXoffset
* dstFormat
->TexelBytes
;
2992 for (row
= 0; row
< srcHeight
; row
++) {
2993 GLhalfARB
*dstTexel
= (GLhalfARB
*) dstRow
;
2995 for (i
= 0; i
< srcWidth
* components
; i
++) {
2996 dstTexel
[i
] = _mesa_float_to_half(src
[i
]);
2998 dstRow
+= dstRowStride
;
2999 src
+= srcWidth
* components
;
3003 _mesa_free((void *) tempImage
);
3009 #if FEATURE_EXT_texture_sRGB
3011 _mesa_texstore_srgb8(TEXSTORE_PARAMS
)
3013 const struct gl_texture_format
*newDstFormat
;
3014 StoreTexImageFunc store
;
3017 ASSERT(dstFormat
== &_mesa_texformat_srgb8
);
3019 /* reuse normal rgb texstore code */
3020 newDstFormat
= &_mesa_texformat_rgb888
;
3021 store
= _mesa_texstore_rgb888
;
3023 k
= store(ctx
, dims
, baseInternalFormat
,
3024 newDstFormat
, dstAddr
,
3025 dstXoffset
, dstYoffset
, dstZoffset
,
3026 dstRowStride
, dstImageOffsets
,
3027 srcWidth
, srcHeight
, srcDepth
,
3029 srcAddr
, srcPacking
);
3035 _mesa_texstore_srgba8(TEXSTORE_PARAMS
)
3037 const struct gl_texture_format
*newDstFormat
;
3040 ASSERT(dstFormat
== &_mesa_texformat_srgba8
);
3042 /* reuse normal rgba texstore code */
3043 newDstFormat
= &_mesa_texformat_rgba8888
;
3045 k
= _mesa_texstore_rgba8888(ctx
, dims
, baseInternalFormat
,
3046 newDstFormat
, dstAddr
,
3047 dstXoffset
, dstYoffset
, dstZoffset
,
3048 dstRowStride
, dstImageOffsets
,
3049 srcWidth
, srcHeight
, srcDepth
,
3051 srcAddr
, srcPacking
);
3057 _mesa_texstore_sargb8(TEXSTORE_PARAMS
)
3059 const struct gl_texture_format
*newDstFormat
;
3062 ASSERT(dstFormat
== &_mesa_texformat_sargb8
);
3064 /* reuse normal rgba texstore code */
3065 newDstFormat
= &_mesa_texformat_argb8888
;
3067 k
= _mesa_texstore_argb8888(ctx
, dims
, baseInternalFormat
,
3068 newDstFormat
, dstAddr
,
3069 dstXoffset
, dstYoffset
, dstZoffset
,
3070 dstRowStride
, dstImageOffsets
,
3071 srcWidth
, srcHeight
, srcDepth
,
3073 srcAddr
, srcPacking
);
3079 _mesa_texstore_sl8(TEXSTORE_PARAMS
)
3081 const struct gl_texture_format
*newDstFormat
;
3084 ASSERT(dstFormat
== &_mesa_texformat_sl8
);
3086 newDstFormat
= &_mesa_texformat_l8
;
3088 /* _mesa_textore_a8 handles luminance8 too */
3089 k
= _mesa_texstore_a8(ctx
, dims
, baseInternalFormat
,
3090 newDstFormat
, dstAddr
,
3091 dstXoffset
, dstYoffset
, dstZoffset
,
3092 dstRowStride
, dstImageOffsets
,
3093 srcWidth
, srcHeight
, srcDepth
,
3095 srcAddr
, srcPacking
);
3101 _mesa_texstore_sla8(TEXSTORE_PARAMS
)
3103 const struct gl_texture_format
*newDstFormat
;
3106 ASSERT(dstFormat
== &_mesa_texformat_sla8
);
3108 /* reuse normal luminance/alpha texstore code */
3109 newDstFormat
= &_mesa_texformat_al88
;
3111 k
= _mesa_texstore_al88(ctx
, dims
, baseInternalFormat
,
3112 newDstFormat
, dstAddr
,
3113 dstXoffset
, dstYoffset
, dstZoffset
,
3114 dstRowStride
, dstImageOffsets
,
3115 srcWidth
, srcHeight
, srcDepth
,
3117 srcAddr
, srcPacking
);
3121 #endif /* FEATURE_EXT_texture_sRGB */
3125 * Check if an unpack PBO is active prior to fetching a texture image.
3126 * If so, do bounds checking and map the buffer into main memory.
3127 * Any errors detected will be recorded.
3128 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
3131 _mesa_validate_pbo_teximage(GLcontext
*ctx
, GLuint dimensions
,
3132 GLsizei width
, GLsizei height
, GLsizei depth
,
3133 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3134 const struct gl_pixelstore_attrib
*unpack
,
3135 const char *funcName
)
3139 if (!_mesa_is_bufferobj(unpack
->BufferObj
)) {
3143 if (!_mesa_validate_pbo_access(dimensions
, unpack
, width
, height
, depth
,
3144 format
, type
, pixels
)) {
3145 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(invalid PBO access");
3149 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
3150 GL_READ_ONLY_ARB
, unpack
->BufferObj
);
3152 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(PBO is mapped");
3156 return ADD_POINTERS(buf
, pixels
);
3161 * Check if an unpack PBO is active prior to fetching a compressed texture
3163 * If so, do bounds checking and map the buffer into main memory.
3164 * Any errors detected will be recorded.
3165 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
3168 _mesa_validate_pbo_compressed_teximage(GLcontext
*ctx
,
3169 GLsizei imageSize
, const GLvoid
*pixels
,
3170 const struct gl_pixelstore_attrib
*packing
,
3171 const char *funcName
)
3175 if (!_mesa_is_bufferobj(packing
->BufferObj
)) {
3176 /* not using a PBO - return pointer unchanged */
3179 if ((const GLubyte
*) pixels
+ imageSize
>
3180 ((const GLubyte
*) 0) + packing
->BufferObj
->Size
) {
3181 /* out of bounds read! */
3182 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(invalid PBO access");
3186 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
3187 GL_READ_ONLY_ARB
, packing
->BufferObj
);
3189 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(PBO is mapped");
3193 return ADD_POINTERS(buf
, pixels
);
3198 * This function must be called after either of the validate_pbo_*_teximage()
3199 * functions. It unmaps the PBO buffer if it was mapped earlier.
3202 _mesa_unmap_teximage_pbo(GLcontext
*ctx
,
3203 const struct gl_pixelstore_attrib
*unpack
)
3205 if (_mesa_is_bufferobj(unpack
->BufferObj
)) {
3206 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
3214 * Adaptor for fetching a GLchan texel from a float-valued texture.
3217 fetch_texel_float_to_chan(const struct gl_texture_image
*texImage
,
3218 GLint i
, GLint j
, GLint k
, GLchan
*texelOut
)
3221 ASSERT(texImage
->FetchTexelf
);
3222 texImage
->FetchTexelf(texImage
, i
, j
, k
, temp
);
3223 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
||
3224 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
3225 /* just one channel */
3226 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[0], temp
[0]);
3230 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[0], temp
[0]);
3231 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[1], temp
[1]);
3232 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[2], temp
[2]);
3233 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[3], temp
[3]);
3239 * Adaptor for fetching a float texel from a GLchan-valued texture.
3242 fetch_texel_chan_to_float(const struct gl_texture_image
*texImage
,
3243 GLint i
, GLint j
, GLint k
, GLfloat
*texelOut
)
3246 ASSERT(texImage
->FetchTexelc
);
3247 texImage
->FetchTexelc(texImage
, i
, j
, k
, temp
);
3248 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
||
3249 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
3250 /* just one channel */
3251 texelOut
[0] = CHAN_TO_FLOAT(temp
[0]);
3255 texelOut
[0] = CHAN_TO_FLOAT(temp
[0]);
3256 texelOut
[1] = CHAN_TO_FLOAT(temp
[1]);
3257 texelOut
[2] = CHAN_TO_FLOAT(temp
[2]);
3258 texelOut
[3] = CHAN_TO_FLOAT(temp
[3]);
3264 * Initialize the texture image's FetchTexelc and FetchTexelf methods.
3267 _mesa_set_fetch_functions(struct gl_texture_image
*texImage
, GLuint dims
)
3269 ASSERT(dims
== 1 || dims
== 2 || dims
== 3);
3270 ASSERT(texImage
->TexFormat
);
3274 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel1D
;
3275 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel1Df
;
3278 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel2D
;
3279 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel2Df
;
3282 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel3D
;
3283 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel3Df
;
3289 /* now check if we need to use a float/chan adaptor */
3290 if (!texImage
->FetchTexelc
) {
3291 texImage
->FetchTexelc
= fetch_texel_float_to_chan
;
3293 else if (!texImage
->FetchTexelf
) {
3294 texImage
->FetchTexelf
= fetch_texel_chan_to_float
;
3298 ASSERT(texImage
->FetchTexelc
);
3299 ASSERT(texImage
->FetchTexelf
);
3304 compute_texture_size(GLcontext
*ctx
, struct gl_texture_image
*texImage
)
3306 if (texImage
->TexFormat
->TexelBytes
== 0) {
3307 /* must be a compressed format */
3308 texImage
->IsCompressed
= GL_TRUE
;
3309 texImage
->CompressedSize
=
3310 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
3311 texImage
->Height
, texImage
->Depth
,
3312 texImage
->TexFormat
->MesaFormat
);
3315 /* non-compressed format */
3316 texImage
->IsCompressed
= GL_FALSE
;
3317 texImage
->CompressedSize
= 0;
3324 * This is the software fallback for Driver.TexImage1D()
3325 * and Driver.CopyTexImage1D().
3326 * \sa _mesa_store_teximage2d()
3327 * Note that the width may not be the actual texture width since it may
3328 * be changed by convolution w/ GL_REDUCE. The texImage->Width field will
3329 * have the actual texture size.
3332 _mesa_store_teximage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3333 GLint internalFormat
,
3334 GLint width
, GLint border
,
3335 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3336 const struct gl_pixelstore_attrib
*packing
,
3337 struct gl_texture_object
*texObj
,
3338 struct gl_texture_image
*texImage
)
3344 = ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
3345 ASSERT(texImage
->TexFormat
);
3347 _mesa_set_fetch_functions(texImage
, 1);
3348 compute_texture_size(ctx
, texImage
);
3350 /* allocate memory */
3351 if (texImage
->IsCompressed
)
3352 sizeInBytes
= texImage
->CompressedSize
;
3354 sizeInBytes
= texImage
->Width
* texImage
->TexFormat
->TexelBytes
;
3355 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3356 if (!texImage
->Data
) {
3357 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage1D");
3361 pixels
= _mesa_validate_pbo_teximage(ctx
, 1, width
, 1, 1, format
, type
,
3362 pixels
, packing
, "glTexImage1D");
3364 /* Note: we check for a NULL image pointer here, _after_ we allocated
3365 * memory for the texture. That's what the GL spec calls for.
3370 const GLint dstRowStride
= 0;
3372 ASSERT(texImage
->TexFormat
->StoreImage
);
3373 success
= texImage
->TexFormat
->StoreImage(ctx
, 1, texImage
->_BaseFormat
,
3374 texImage
->TexFormat
,
3376 0, 0, 0, /* dstX/Y/Zoffset */
3378 texImage
->ImageOffsets
,
3380 format
, type
, pixels
, packing
);
3382 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage1D");
3386 _mesa_unmap_teximage_pbo(ctx
, packing
);
3391 * This is the software fallback for Driver.TexImage2D()
3392 * and Driver.CopyTexImage2D().
3394 * This function is oriented toward storing images in main memory, rather
3395 * than VRAM. Device driver's can easily plug in their own replacement.
3397 * Note: width and height may be pre-convolved dimensions, but
3398 * texImage->Width and texImage->Height will be post-convolved dimensions.
3401 _mesa_store_teximage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3402 GLint internalFormat
,
3403 GLint width
, GLint height
, GLint border
,
3404 GLenum format
, GLenum type
, const void *pixels
,
3405 const struct gl_pixelstore_attrib
*packing
,
3406 struct gl_texture_object
*texObj
,
3407 struct gl_texture_image
*texImage
)
3409 GLint texelBytes
, sizeInBytes
;
3413 = ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
3414 ASSERT(texImage
->TexFormat
);
3416 _mesa_set_fetch_functions(texImage
, 2);
3417 compute_texture_size(ctx
, texImage
);
3419 texelBytes
= texImage
->TexFormat
->TexelBytes
;
3421 /* allocate memory */
3422 if (texImage
->IsCompressed
)
3423 sizeInBytes
= texImage
->CompressedSize
;
3425 sizeInBytes
= texImage
->Width
* texImage
->Height
* texelBytes
;
3426 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3427 if (!texImage
->Data
) {
3428 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage2D");
3432 pixels
= _mesa_validate_pbo_teximage(ctx
, 2, width
, height
, 1, format
, type
,
3433 pixels
, packing
, "glTexImage2D");
3435 /* Note: we check for a NULL image pointer here, _after_ we allocated
3436 * memory for the texture. That's what the GL spec calls for.
3443 if (texImage
->IsCompressed
) {
3445 = _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
3448 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3450 ASSERT(texImage
->TexFormat
->StoreImage
);
3451 success
= texImage
->TexFormat
->StoreImage(ctx
, 2, texImage
->_BaseFormat
,
3452 texImage
->TexFormat
,
3454 0, 0, 0, /* dstX/Y/Zoffset */
3456 texImage
->ImageOffsets
,
3458 format
, type
, pixels
, packing
);
3460 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage2D");
3464 _mesa_unmap_teximage_pbo(ctx
, packing
);
3470 * This is the software fallback for Driver.TexImage3D()
3471 * and Driver.CopyTexImage3D().
3472 * \sa _mesa_store_teximage2d()
3475 _mesa_store_teximage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3476 GLint internalFormat
,
3477 GLint width
, GLint height
, GLint depth
, GLint border
,
3478 GLenum format
, GLenum type
, const void *pixels
,
3479 const struct gl_pixelstore_attrib
*packing
,
3480 struct gl_texture_object
*texObj
,
3481 struct gl_texture_image
*texImage
)
3483 GLint texelBytes
, sizeInBytes
;
3487 = ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
3488 ASSERT(texImage
->TexFormat
);
3490 _mesa_set_fetch_functions(texImage
, 3);
3491 compute_texture_size(ctx
, texImage
);
3493 texelBytes
= texImage
->TexFormat
->TexelBytes
;
3495 /* allocate memory */
3496 if (texImage
->IsCompressed
)
3497 sizeInBytes
= texImage
->CompressedSize
;
3499 sizeInBytes
= width
* height
* depth
* texelBytes
;
3500 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3501 if (!texImage
->Data
) {
3502 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage3D");
3506 pixels
= _mesa_validate_pbo_teximage(ctx
, 3, width
, height
, depth
, format
,
3507 type
, pixels
, packing
, "glTexImage3D");
3509 /* Note: we check for a NULL image pointer here, _after_ we allocated
3510 * memory for the texture. That's what the GL spec calls for.
3517 if (texImage
->IsCompressed
) {
3519 = _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
3522 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3524 ASSERT(texImage
->TexFormat
->StoreImage
);
3525 success
= texImage
->TexFormat
->StoreImage(ctx
, 3, texImage
->_BaseFormat
,
3526 texImage
->TexFormat
,
3528 0, 0, 0, /* dstX/Y/Zoffset */
3530 texImage
->ImageOffsets
,
3531 width
, height
, depth
,
3532 format
, type
, pixels
, packing
);
3534 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage3D");
3538 _mesa_unmap_teximage_pbo(ctx
, packing
);
3545 * This is the software fallback for Driver.TexSubImage1D()
3546 * and Driver.CopyTexSubImage1D().
3549 _mesa_store_texsubimage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3550 GLint xoffset
, GLint width
,
3551 GLenum format
, GLenum type
, const void *pixels
,
3552 const struct gl_pixelstore_attrib
*packing
,
3553 struct gl_texture_object
*texObj
,
3554 struct gl_texture_image
*texImage
)
3556 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3557 pixels
= _mesa_validate_pbo_teximage(ctx
, 1, width
, 1, 1, format
, type
,
3558 pixels
, packing
, "glTexSubImage1D");
3563 const GLint dstRowStride
= 0;
3565 ASSERT(texImage
->TexFormat
->StoreImage
);
3566 success
= texImage
->TexFormat
->StoreImage(ctx
, 1, texImage
->_BaseFormat
,
3567 texImage
->TexFormat
,
3569 xoffset
, 0, 0, /* offsets */
3571 texImage
->ImageOffsets
,
3573 format
, type
, pixels
, packing
);
3575 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage1D");
3579 _mesa_unmap_teximage_pbo(ctx
, packing
);
3585 * This is the software fallback for Driver.TexSubImage2D()
3586 * and Driver.CopyTexSubImage2D().
3589 _mesa_store_texsubimage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3590 GLint xoffset
, GLint yoffset
,
3591 GLint width
, GLint height
,
3592 GLenum format
, GLenum type
, const void *pixels
,
3593 const struct gl_pixelstore_attrib
*packing
,
3594 struct gl_texture_object
*texObj
,
3595 struct gl_texture_image
*texImage
)
3597 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3598 pixels
= _mesa_validate_pbo_teximage(ctx
, 2, width
, height
, 1, format
, type
,
3599 pixels
, packing
, "glTexSubImage2D");
3604 GLint dstRowStride
= 0;
3606 if (texImage
->IsCompressed
) {
3607 dstRowStride
= _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
,
3611 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3613 ASSERT(texImage
->TexFormat
->StoreImage
);
3614 success
= texImage
->TexFormat
->StoreImage(ctx
, 2, texImage
->_BaseFormat
,
3615 texImage
->TexFormat
,
3617 xoffset
, yoffset
, 0,
3619 texImage
->ImageOffsets
,
3621 format
, type
, pixels
, packing
);
3623 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage2D");
3627 _mesa_unmap_teximage_pbo(ctx
, packing
);
3632 * This is the software fallback for Driver.TexSubImage3D().
3633 * and Driver.CopyTexSubImage3D().
3636 _mesa_store_texsubimage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3637 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3638 GLint width
, GLint height
, GLint depth
,
3639 GLenum format
, GLenum type
, const void *pixels
,
3640 const struct gl_pixelstore_attrib
*packing
,
3641 struct gl_texture_object
*texObj
,
3642 struct gl_texture_image
*texImage
)
3644 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3645 pixels
= _mesa_validate_pbo_teximage(ctx
, 3, width
, height
, depth
, format
,
3646 type
, pixels
, packing
,
3654 if (texImage
->IsCompressed
) {
3655 dstRowStride
= _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
,
3659 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3661 ASSERT(texImage
->TexFormat
->StoreImage
);
3662 success
= texImage
->TexFormat
->StoreImage(ctx
, 3, texImage
->_BaseFormat
,
3663 texImage
->TexFormat
,
3665 xoffset
, yoffset
, zoffset
,
3667 texImage
->ImageOffsets
,
3668 width
, height
, depth
,
3669 format
, type
, pixels
, packing
);
3671 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage3D");
3675 _mesa_unmap_teximage_pbo(ctx
, packing
);
3680 * Fallback for Driver.CompressedTexImage1D()
3683 _mesa_store_compressed_teximage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3684 GLint internalFormat
,
3685 GLint width
, GLint border
,
3686 GLsizei imageSize
, const GLvoid
*data
,
3687 struct gl_texture_object
*texObj
,
3688 struct gl_texture_image
*texImage
)
3690 /* this space intentionally left blank */
3692 (void) target
; (void) level
;
3693 (void) internalFormat
;
3694 (void) width
; (void) border
;
3695 (void) imageSize
; (void) data
;
3703 * Fallback for Driver.CompressedTexImage2D()
3706 _mesa_store_compressed_teximage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3707 GLint internalFormat
,
3708 GLint width
, GLint height
, GLint border
,
3709 GLsizei imageSize
, const GLvoid
*data
,
3710 struct gl_texture_object
*texObj
,
3711 struct gl_texture_image
*texImage
)
3713 (void) width
; (void) height
; (void) border
;
3715 /* This is pretty simple, basically just do a memcpy without worrying
3716 * about the usual image unpacking or image transfer operations.
3720 ASSERT(texImage
->Width
> 0);
3721 ASSERT(texImage
->Height
> 0);
3722 ASSERT(texImage
->Depth
== 1);
3723 ASSERT(texImage
->Data
== NULL
); /* was freed in glCompressedTexImage2DARB */
3726 = ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, 0, 0);
3727 ASSERT(texImage
->TexFormat
);
3729 _mesa_set_fetch_functions(texImage
, 2);
3730 compute_texture_size(ctx
, texImage
);
3732 /* allocate storage */
3733 texImage
->Data
= _mesa_alloc_texmemory(imageSize
);
3734 if (!texImage
->Data
) {
3735 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexImage2DARB");
3739 data
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, data
,
3741 "glCompressedTexImage2D");
3746 ASSERT(texImage
->CompressedSize
== (GLuint
) imageSize
);
3747 MEMCPY(texImage
->Data
, data
, imageSize
);
3749 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);
3755 * Fallback for Driver.CompressedTexImage3D()
3758 _mesa_store_compressed_teximage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3759 GLint internalFormat
,
3760 GLint width
, GLint height
, GLint depth
,
3762 GLsizei imageSize
, const GLvoid
*data
,
3763 struct gl_texture_object
*texObj
,
3764 struct gl_texture_image
*texImage
)
3766 /* this space intentionally left blank */
3768 (void) target
; (void) level
;
3769 (void) internalFormat
;
3770 (void) width
; (void) height
; (void) depth
;
3772 (void) imageSize
; (void) data
;
3780 * Fallback for Driver.CompressedTexSubImage1D()
3783 _mesa_store_compressed_texsubimage1d(GLcontext
*ctx
, GLenum target
,
3785 GLint xoffset
, GLsizei width
,
3787 GLsizei imageSize
, const GLvoid
*data
,
3788 struct gl_texture_object
*texObj
,
3789 struct gl_texture_image
*texImage
)
3791 /* there are no compressed 1D texture formats yet */
3793 (void) target
; (void) level
;
3794 (void) xoffset
; (void) width
;
3796 (void) imageSize
; (void) data
;
3803 * Fallback for Driver.CompressedTexSubImage2D()
3806 _mesa_store_compressed_texsubimage2d(GLcontext
*ctx
, GLenum target
,
3808 GLint xoffset
, GLint yoffset
,
3809 GLsizei width
, GLsizei height
,
3811 GLsizei imageSize
, const GLvoid
*data
,
3812 struct gl_texture_object
*texObj
,
3813 struct gl_texture_image
*texImage
)
3815 GLint bytesPerRow
, destRowStride
, srcRowStride
;
3819 const GLuint mesaFormat
= texImage
->TexFormat
->MesaFormat
;
3823 /* these should have been caught sooner */
3824 ASSERT((width
& 3) == 0 || width
== 2 || width
== 1);
3825 ASSERT((height
& 3) == 0 || height
== 2 || height
== 1);
3826 ASSERT((xoffset
& 3) == 0);
3827 ASSERT((yoffset
& 3) == 0);
3829 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3830 data
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, data
,
3832 "glCompressedTexSubImage2D");
3836 srcRowStride
= _mesa_compressed_row_stride(mesaFormat
, width
);
3837 src
= (const GLubyte
*) data
;
3839 destRowStride
= _mesa_compressed_row_stride(mesaFormat
, texImage
->Width
);
3840 dest
= _mesa_compressed_image_address(xoffset
, yoffset
, 0,
3841 texImage
->TexFormat
->MesaFormat
,
3843 (GLubyte
*) texImage
->Data
);
3845 bytesPerRow
= srcRowStride
;
3848 for (i
= 0; i
< rows
; i
++) {
3849 MEMCPY(dest
, src
, bytesPerRow
);
3850 dest
+= destRowStride
;
3851 src
+= srcRowStride
;
3854 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);
3859 * Fallback for Driver.CompressedTexSubImage3D()
3862 _mesa_store_compressed_texsubimage3d(GLcontext
*ctx
, GLenum target
,
3864 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3865 GLsizei width
, GLsizei height
, GLsizei depth
,
3867 GLsizei imageSize
, const GLvoid
*data
,
3868 struct gl_texture_object
*texObj
,
3869 struct gl_texture_image
*texImage
)
3871 /* there are no compressed 3D texture formats yet */
3873 (void) target
; (void) level
;
3874 (void) xoffset
; (void) yoffset
; (void) zoffset
;
3875 (void) width
; (void) height
; (void) depth
;
3877 (void) imageSize
; (void) data
;