2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008 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"
66 #include "texcompress.h"
67 #include "texformat.h"
80 * Return GL_TRUE if the given image format is one that be converted
81 * to another format by swizzling.
84 can_swizzle(GLenum logicalBaseFormat
)
86 switch (logicalBaseFormat
) {
89 case GL_LUMINANCE_ALPHA
:
123 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
124 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
125 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
126 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
129 static const struct {
132 GLubyte from_rgba
[6];
133 } mappings
[MAX_IDX
] =
143 MAP4(ZERO
, ZERO
, ZERO
, 0),
174 MAP4(0, ZERO
, ZERO
, ONE
),
180 MAP4(ZERO
, 0, ZERO
, ONE
),
186 MAP4(ZERO
, ZERO
, 0, ONE
),
212 * Convert a GL image format enum to an IDX_* value (see above).
215 get_map_idx(GLenum value
)
218 case GL_LUMINANCE
: return IDX_LUMINANCE
;
219 case GL_ALPHA
: return IDX_ALPHA
;
220 case GL_INTENSITY
: return IDX_INTENSITY
;
221 case GL_LUMINANCE_ALPHA
: return IDX_LUMINANCE_ALPHA
;
222 case GL_RGB
: return IDX_RGB
;
223 case GL_RGBA
: return IDX_RGBA
;
224 case GL_RED
: return IDX_RED
;
225 case GL_GREEN
: return IDX_GREEN
;
226 case GL_BLUE
: return IDX_BLUE
;
227 case GL_BGR
: return IDX_BGR
;
228 case GL_BGRA
: return IDX_BGRA
;
229 case GL_ABGR_EXT
: return IDX_ABGR
;
231 _mesa_problem(NULL
, "Unexpected inFormat");
238 * When promoting texture formats (see below) we need to compute the
239 * mapping of dest components back to source components.
240 * This function does that.
241 * \param inFormat the incoming format of the texture
242 * \param outFormat the final texture format
243 * \return map[6] a full 6-component map
246 compute_component_mapping(GLenum inFormat
, GLenum outFormat
,
249 const int inFmt
= get_map_idx(inFormat
);
250 const int outFmt
= get_map_idx(outFormat
);
251 const GLubyte
*in2rgba
= mappings
[inFmt
].to_rgba
;
252 const GLubyte
*rgba2out
= mappings
[outFmt
].from_rgba
;
255 for (i
= 0; i
< 4; i
++)
256 map
[i
] = in2rgba
[rgba2out
[i
]];
262 _mesa_printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
263 inFormat, _mesa_lookup_enum_by_nr(inFormat),
264 outFormat, _mesa_lookup_enum_by_nr(outFormat),
275 #if !FEATURE_convolve
277 _mesa_adjust_image_for_convolution(GLcontext
*ctx
, GLuint dims
,
278 GLsizei
*srcWidth
, GLsizei
*srcHeight
)
286 * Make a temporary (color) texture image with GLfloat components.
287 * Apply all needed pixel unpacking and pixel transfer operations.
288 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
289 * Suppose the user specifies GL_LUMINANCE as the internal texture format
290 * but the graphics hardware doesn't support luminance textures. So, might
291 * use an RGB hardware format instead.
292 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
294 * \param ctx the rendering context
295 * \param dims image dimensions: 1, 2 or 3
296 * \param logicalBaseFormat basic texture derived from the user's
297 * internal texture format value
298 * \param textureBaseFormat the actual basic format of the texture
299 * \param srcWidth source image width
300 * \param srcHeight source image height
301 * \param srcDepth source image depth
302 * \param srcFormat source image format
303 * \param srcType source image type
304 * \param srcAddr source image address
305 * \param srcPacking source image pixel packing
306 * \return resulting image with format = textureBaseFormat and type = GLfloat.
309 make_temp_float_image(GLcontext
*ctx
, GLuint dims
,
310 GLenum logicalBaseFormat
,
311 GLenum textureBaseFormat
,
312 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
313 GLenum srcFormat
, GLenum srcType
,
314 const GLvoid
*srcAddr
,
315 const struct gl_pixelstore_attrib
*srcPacking
)
317 GLuint transferOps
= ctx
->_ImageTransferState
;
320 ASSERT(dims
>= 1 && dims
<= 3);
322 ASSERT(logicalBaseFormat
== GL_RGBA
||
323 logicalBaseFormat
== GL_RGB
||
324 logicalBaseFormat
== GL_LUMINANCE_ALPHA
||
325 logicalBaseFormat
== GL_LUMINANCE
||
326 logicalBaseFormat
== GL_ALPHA
||
327 logicalBaseFormat
== GL_INTENSITY
||
328 logicalBaseFormat
== GL_COLOR_INDEX
||
329 logicalBaseFormat
== GL_DEPTH_COMPONENT
);
331 ASSERT(textureBaseFormat
== GL_RGBA
||
332 textureBaseFormat
== GL_RGB
||
333 textureBaseFormat
== GL_LUMINANCE_ALPHA
||
334 textureBaseFormat
== GL_LUMINANCE
||
335 textureBaseFormat
== GL_ALPHA
||
336 textureBaseFormat
== GL_INTENSITY
||
337 textureBaseFormat
== GL_COLOR_INDEX
||
338 textureBaseFormat
== GL_DEPTH_COMPONENT
);
340 /* conventional color image */
342 if ((dims
== 1 && ctx
->Pixel
.Convolution1DEnabled
) ||
343 (dims
>= 2 && ctx
->Pixel
.Convolution2DEnabled
) ||
344 (dims
>= 2 && ctx
->Pixel
.Separable2DEnabled
)) {
345 /* need image convolution */
346 const GLuint preConvTransferOps
347 = (transferOps
& IMAGE_PRE_CONVOLUTION_BITS
) | IMAGE_CLAMP_BIT
;
348 const GLuint postConvTransferOps
349 = (transferOps
& IMAGE_POST_CONVOLUTION_BITS
) | IMAGE_CLAMP_BIT
;
351 GLint convWidth
, convHeight
;
354 /* pre-convolution image buffer (3D) */
355 tempImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
356 * 4 * sizeof(GLfloat
));
360 /* post-convolution image buffer (2D) */
361 convImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
362 * 4 * sizeof(GLfloat
));
364 _mesa_free(tempImage
);
368 /* loop over 3D image slices */
369 for (img
= 0; img
< srcDepth
; img
++) {
370 GLfloat
*dst
= tempImage
+ img
* (srcWidth
* srcHeight
* 4);
372 /* unpack and do transfer ops up to convolution */
373 for (row
= 0; row
< srcHeight
; row
++) {
374 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
375 srcAddr
, srcWidth
, srcHeight
,
376 srcFormat
, srcType
, img
, row
, 0);
377 _mesa_unpack_color_span_float(ctx
, srcWidth
, GL_RGBA
, dst
,
378 srcFormat
, srcType
, src
,
384 /* size after optional convolution */
385 convWidth
= srcWidth
;
386 convHeight
= srcHeight
;
391 GLfloat
*src
= tempImage
+ img
* (srcWidth
* srcHeight
* 4);
393 ASSERT(ctx
->Pixel
.Convolution1DEnabled
);
394 _mesa_convolve_1d_image(ctx
, &convWidth
, src
, convImage
);
397 if (ctx
->Pixel
.Convolution2DEnabled
) {
398 _mesa_convolve_2d_image(ctx
, &convWidth
, &convHeight
,
402 ASSERT(ctx
->Pixel
.Separable2DEnabled
);
403 _mesa_convolve_sep_image(ctx
, &convWidth
, &convHeight
,
409 /* do post-convolution transfer and pack into tempImage */
411 const GLint logComponents
412 = _mesa_components_in_format(logicalBaseFormat
);
413 const GLfloat
*src
= convImage
;
414 GLfloat
*dst
= tempImage
+ img
* (convWidth
* convHeight
* 4);
415 for (row
= 0; row
< convHeight
; row
++) {
416 _mesa_pack_rgba_span_float(ctx
, convWidth
,
417 (GLfloat (*)[4]) src
,
418 logicalBaseFormat
, GL_FLOAT
,
419 dst
, &ctx
->DefaultPacking
,
420 postConvTransferOps
);
421 src
+= convWidth
* 4;
422 dst
+= convWidth
* logComponents
;
425 } /* loop over 3D image slices */
427 _mesa_free(convImage
);
429 /* might need these below */
430 srcWidth
= convWidth
;
431 srcHeight
= convHeight
;
435 const GLint components
= _mesa_components_in_format(logicalBaseFormat
);
436 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
437 srcWidth
, srcFormat
, srcType
);
441 tempImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
442 * components
* sizeof(GLfloat
));
447 for (img
= 0; img
< srcDepth
; img
++) {
449 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
453 for (row
= 0; row
< srcHeight
; row
++) {
454 _mesa_unpack_color_span_float(ctx
, srcWidth
, logicalBaseFormat
,
455 dst
, srcFormat
, srcType
, src
,
456 srcPacking
, transferOps
);
457 dst
+= srcWidth
* components
;
463 if (logicalBaseFormat
!= textureBaseFormat
) {
465 GLint texComponents
= _mesa_components_in_format(textureBaseFormat
);
466 GLint logComponents
= _mesa_components_in_format(logicalBaseFormat
);
471 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
472 ASSERT(textureBaseFormat
== GL_RGB
|| textureBaseFormat
== GL_RGBA
||
473 textureBaseFormat
== GL_LUMINANCE_ALPHA
);
475 /* The actual texture format should have at least as many components
476 * as the logical texture format.
478 ASSERT(texComponents
>= logComponents
);
480 newImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
481 * texComponents
* sizeof(GLfloat
));
483 _mesa_free(tempImage
);
487 compute_component_mapping(logicalBaseFormat
, textureBaseFormat
, map
);
489 n
= srcWidth
* srcHeight
* srcDepth
;
490 for (i
= 0; i
< n
; i
++) {
492 for (k
= 0; k
< texComponents
; k
++) {
495 newImage
[i
* texComponents
+ k
] = 0.0F
;
497 newImage
[i
* texComponents
+ k
] = 1.0F
;
499 newImage
[i
* texComponents
+ k
] = tempImage
[i
* logComponents
+ j
];
503 _mesa_free(tempImage
);
504 tempImage
= newImage
;
512 * Make a temporary (color) texture image with GLchan components.
513 * Apply all needed pixel unpacking and pixel transfer operations.
514 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
515 * Suppose the user specifies GL_LUMINANCE as the internal texture format
516 * but the graphics hardware doesn't support luminance textures. So, might
517 * use an RGB hardware format instead.
518 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
520 * \param ctx the rendering context
521 * \param dims image dimensions: 1, 2 or 3
522 * \param logicalBaseFormat basic texture derived from the user's
523 * internal texture format value
524 * \param textureBaseFormat the actual basic format of the texture
525 * \param srcWidth source image width
526 * \param srcHeight source image height
527 * \param srcDepth source image depth
528 * \param srcFormat source image format
529 * \param srcType source image type
530 * \param srcAddr source image address
531 * \param srcPacking source image pixel packing
532 * \return resulting image with format = textureBaseFormat and type = GLchan.
535 _mesa_make_temp_chan_image(GLcontext
*ctx
, GLuint dims
,
536 GLenum logicalBaseFormat
,
537 GLenum textureBaseFormat
,
538 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
539 GLenum srcFormat
, GLenum srcType
,
540 const GLvoid
*srcAddr
,
541 const struct gl_pixelstore_attrib
*srcPacking
)
543 GLuint transferOps
= ctx
->_ImageTransferState
;
544 const GLint components
= _mesa_components_in_format(logicalBaseFormat
);
545 GLboolean freeSrcImage
= GL_FALSE
;
547 GLchan
*tempImage
, *dst
;
549 ASSERT(dims
>= 1 && dims
<= 3);
551 ASSERT(logicalBaseFormat
== GL_RGBA
||
552 logicalBaseFormat
== GL_RGB
||
553 logicalBaseFormat
== GL_LUMINANCE_ALPHA
||
554 logicalBaseFormat
== GL_LUMINANCE
||
555 logicalBaseFormat
== GL_ALPHA
||
556 logicalBaseFormat
== GL_INTENSITY
);
558 ASSERT(textureBaseFormat
== GL_RGBA
||
559 textureBaseFormat
== GL_RGB
||
560 textureBaseFormat
== GL_LUMINANCE_ALPHA
||
561 textureBaseFormat
== GL_LUMINANCE
||
562 textureBaseFormat
== GL_ALPHA
||
563 textureBaseFormat
== GL_INTENSITY
);
566 if ((dims
== 1 && ctx
->Pixel
.Convolution1DEnabled
) ||
567 (dims
>= 2 && ctx
->Pixel
.Convolution2DEnabled
) ||
568 (dims
>= 2 && ctx
->Pixel
.Separable2DEnabled
)) {
569 /* get convolved image */
570 GLfloat
*convImage
= make_temp_float_image(ctx
, dims
,
573 srcWidth
, srcHeight
, srcDepth
,
575 srcAddr
, srcPacking
);
578 /* the convolved image is our new source image */
580 srcFormat
= logicalBaseFormat
;
582 srcPacking
= &ctx
->DefaultPacking
;
583 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
585 freeSrcImage
= GL_TRUE
;
589 /* unpack and transfer the source image */
590 tempImage
= (GLchan
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
591 * components
* sizeof(GLchan
));
596 for (img
= 0; img
< srcDepth
; img
++) {
597 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
601 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
605 for (row
= 0; row
< srcHeight
; row
++) {
606 _mesa_unpack_color_span_chan(ctx
, srcWidth
, logicalBaseFormat
, dst
,
607 srcFormat
, srcType
, src
, srcPacking
,
609 dst
+= srcWidth
* components
;
614 /* If we made a temporary image for convolution, free it here */
616 _mesa_free((void *) srcAddr
);
619 if (logicalBaseFormat
!= textureBaseFormat
) {
620 /* one more conversion step */
621 GLint texComponents
= _mesa_components_in_format(textureBaseFormat
);
622 GLint logComponents
= _mesa_components_in_format(logicalBaseFormat
);
627 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
628 ASSERT(textureBaseFormat
== GL_RGB
|| textureBaseFormat
== GL_RGBA
||
629 textureBaseFormat
== GL_LUMINANCE_ALPHA
);
631 /* The actual texture format should have at least as many components
632 * as the logical texture format.
634 ASSERT(texComponents
>= logComponents
);
636 newImage
= (GLchan
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
637 * texComponents
* sizeof(GLchan
));
639 _mesa_free(tempImage
);
643 compute_component_mapping(logicalBaseFormat
, textureBaseFormat
, map
);
645 n
= srcWidth
* srcHeight
* srcDepth
;
646 for (i
= 0; i
< n
; i
++) {
648 for (k
= 0; k
< texComponents
; k
++) {
651 newImage
[i
* texComponents
+ k
] = 0;
653 newImage
[i
* texComponents
+ k
] = CHAN_MAX
;
655 newImage
[i
* texComponents
+ k
] = tempImage
[i
* logComponents
+ j
];
659 _mesa_free(tempImage
);
660 tempImage
= newImage
;
668 * Copy GLubyte pixels from <src> to <dst> with swizzling.
669 * \param dst destination pixels
670 * \param dstComponents number of color components in destination pixels
671 * \param src source pixels
672 * \param srcComponents number of color components in source pixels
673 * \param map the swizzle mapping. map[X] says where to find the X component
674 * in the source image's pixels. For example, if the source image
675 * is GL_BGRA and X = red, map[0] yields 2.
676 * \param count number of pixels to copy/swizzle.
679 swizzle_copy(GLubyte
*dst
, GLuint dstComponents
, const GLubyte
*src
,
680 GLuint srcComponents
, const GLubyte
*map
, GLuint count
)
682 #define SWZ_CPY(dst, src, count, dstComps, srcComps) \
685 for (i = 0; i < count; i++) { \
687 if (srcComps == 4) { \
688 COPY_4UBV(tmp, src); \
691 for (j = 0; j < srcComps; j++) { \
696 for (j = 0; j < dstComps; j++) { \
697 dst[j] = tmp[map[j]]; \
708 ASSERT(srcComponents
<= 4);
709 ASSERT(dstComponents
<= 4);
711 switch (dstComponents
) {
713 switch (srcComponents
) {
715 SWZ_CPY(dst
, src
, count
, 4, 4);
718 SWZ_CPY(dst
, src
, count
, 4, 3);
721 SWZ_CPY(dst
, src
, count
, 4, 2);
724 SWZ_CPY(dst
, src
, count
, 4, 1);
731 switch (srcComponents
) {
733 SWZ_CPY(dst
, src
, count
, 3, 4);
736 SWZ_CPY(dst
, src
, count
, 3, 3);
739 SWZ_CPY(dst
, src
, count
, 3, 2);
742 SWZ_CPY(dst
, src
, count
, 3, 1);
749 switch (srcComponents
) {
751 SWZ_CPY(dst
, src
, count
, 2, 4);
754 SWZ_CPY(dst
, src
, count
, 2, 3);
757 SWZ_CPY(dst
, src
, count
, 2, 2);
760 SWZ_CPY(dst
, src
, count
, 2, 1);
767 switch (srcComponents
) {
769 SWZ_CPY(dst
, src
, count
, 1, 4);
772 SWZ_CPY(dst
, src
, count
, 1, 3);
775 SWZ_CPY(dst
, src
, count
, 1, 2);
778 SWZ_CPY(dst
, src
, count
, 1, 1);
792 static const GLubyte map_identity
[6] = { 0, 1, 2, 3, ZERO
, ONE
};
793 static const GLubyte map_3210
[6] = { 3, 2, 1, 0, ZERO
, ONE
};
795 /* Deal with the _REV input types:
797 static const GLubyte
*
798 type_mapping( GLenum srcType
)
801 case GL_UNSIGNED_BYTE
:
803 case GL_UNSIGNED_INT_8_8_8_8
:
804 return _mesa_little_endian() ? map_3210
: map_identity
;
805 case GL_UNSIGNED_INT_8_8_8_8_REV
:
806 return _mesa_little_endian() ? map_identity
: map_3210
;
812 /* Mapping required if input type is
814 static const GLubyte
*
815 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
);
1904 _mesa_texstore_argb4444(TEXSTORE_PARAMS
)
1906 ASSERT(dstFormat
== &_mesa_texformat_argb4444
||
1907 dstFormat
== &_mesa_texformat_argb4444_rev
);
1908 ASSERT(dstFormat
->TexelBytes
== 2);
1910 if (!ctx
->_ImageTransferState
&&
1911 !srcPacking
->SwapBytes
&&
1912 dstFormat
== &_mesa_texformat_argb4444
&&
1913 baseInternalFormat
== GL_RGBA
&&
1914 srcFormat
== GL_BGRA
&&
1915 srcType
== GL_UNSIGNED_SHORT_4_4_4_4_REV
) {
1916 /* simple memcpy path */
1917 memcpy_texture(ctx
, dims
,
1918 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1921 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1922 srcAddr
, srcPacking
);
1926 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1928 dstFormat
->BaseFormat
,
1929 srcWidth
, srcHeight
, srcDepth
,
1930 srcFormat
, srcType
, srcAddr
,
1932 const GLchan
*src
= tempImage
;
1933 GLint img
, row
, col
;
1936 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1937 for (img
= 0; img
< srcDepth
; img
++) {
1938 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1939 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1940 + dstYoffset
* dstRowStride
1941 + dstXoffset
* dstFormat
->TexelBytes
;
1942 for (row
= 0; row
< srcHeight
; row
++) {
1943 GLushort
*dstUS
= (GLushort
*) dstRow
;
1944 if (dstFormat
== &_mesa_texformat_argb4444
) {
1945 for (col
= 0; col
< srcWidth
; col
++) {
1946 dstUS
[col
] = PACK_COLOR_4444( CHAN_TO_UBYTE(src
[ACOMP
]),
1947 CHAN_TO_UBYTE(src
[RCOMP
]),
1948 CHAN_TO_UBYTE(src
[GCOMP
]),
1949 CHAN_TO_UBYTE(src
[BCOMP
]) );
1954 for (col
= 0; col
< srcWidth
; col
++) {
1955 dstUS
[col
] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
1956 CHAN_TO_UBYTE(src
[RCOMP
]),
1957 CHAN_TO_UBYTE(src
[GCOMP
]),
1958 CHAN_TO_UBYTE(src
[BCOMP
]) );
1962 dstRow
+= dstRowStride
;
1965 _mesa_free((void *) tempImage
);
1973 _mesa_texstore_argb1555(TEXSTORE_PARAMS
)
1975 ASSERT(dstFormat
== &_mesa_texformat_argb1555
||
1976 dstFormat
== &_mesa_texformat_argb1555_rev
);
1977 ASSERT(dstFormat
->TexelBytes
== 2);
1979 if (!ctx
->_ImageTransferState
&&
1980 !srcPacking
->SwapBytes
&&
1981 dstFormat
== &_mesa_texformat_argb1555
&&
1982 baseInternalFormat
== GL_RGBA
&&
1983 srcFormat
== GL_BGRA
&&
1984 srcType
== GL_UNSIGNED_SHORT_1_5_5_5_REV
) {
1985 /* simple memcpy path */
1986 memcpy_texture(ctx
, dims
,
1987 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1990 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1991 srcAddr
, srcPacking
);
1995 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1997 dstFormat
->BaseFormat
,
1998 srcWidth
, srcHeight
, srcDepth
,
1999 srcFormat
, srcType
, srcAddr
,
2001 const GLchan
*src
=tempImage
;
2002 GLint img
, row
, col
;
2005 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2006 for (img
= 0; img
< srcDepth
; img
++) {
2007 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2008 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2009 + dstYoffset
* dstRowStride
2010 + dstXoffset
* dstFormat
->TexelBytes
;
2011 for (row
= 0; row
< srcHeight
; row
++) {
2012 GLushort
*dstUS
= (GLushort
*) dstRow
;
2013 if (dstFormat
== &_mesa_texformat_argb1555
) {
2014 for (col
= 0; col
< srcWidth
; col
++) {
2015 dstUS
[col
] = PACK_COLOR_1555( CHAN_TO_UBYTE(src
[ACOMP
]),
2016 CHAN_TO_UBYTE(src
[RCOMP
]),
2017 CHAN_TO_UBYTE(src
[GCOMP
]),
2018 CHAN_TO_UBYTE(src
[BCOMP
]) );
2023 for (col
= 0; col
< srcWidth
; col
++) {
2024 dstUS
[col
] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
2025 CHAN_TO_UBYTE(src
[RCOMP
]),
2026 CHAN_TO_UBYTE(src
[GCOMP
]),
2027 CHAN_TO_UBYTE(src
[BCOMP
]) );
2031 dstRow
+= dstRowStride
;
2034 _mesa_free((void *) tempImage
);
2041 _mesa_texstore_al88(TEXSTORE_PARAMS
)
2043 const GLboolean littleEndian
= _mesa_little_endian();
2045 ASSERT(dstFormat
== &_mesa_texformat_al88
||
2046 dstFormat
== &_mesa_texformat_al88_rev
);
2047 ASSERT(dstFormat
->TexelBytes
== 2);
2049 if (!ctx
->_ImageTransferState
&&
2050 !srcPacking
->SwapBytes
&&
2051 dstFormat
== &_mesa_texformat_al88
&&
2052 baseInternalFormat
== GL_LUMINANCE_ALPHA
&&
2053 srcFormat
== GL_LUMINANCE_ALPHA
&&
2054 srcType
== GL_UNSIGNED_BYTE
&&
2056 /* simple memcpy path */
2057 memcpy_texture(ctx
, dims
,
2058 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2061 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2062 srcAddr
, srcPacking
);
2064 else if (!ctx
->_ImageTransferState
&&
2066 srcType
== GL_UNSIGNED_BYTE
&&
2067 can_swizzle(baseInternalFormat
) &&
2068 can_swizzle(srcFormat
)) {
2072 /* dstmap - how to swizzle from RGBA to dst format:
2074 if ((littleEndian
&& dstFormat
== &_mesa_texformat_al88
) ||
2075 (!littleEndian
&& dstFormat
== &_mesa_texformat_al88_rev
)) {
2083 dstmap
[2] = ZERO
; /* ? */
2084 dstmap
[3] = ONE
; /* ? */
2086 _mesa_swizzle_ubyte_image(ctx
, dims
,
2091 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2092 dstRowStride
, dstImageOffsets
,
2093 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2098 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2100 dstFormat
->BaseFormat
,
2101 srcWidth
, srcHeight
, srcDepth
,
2102 srcFormat
, srcType
, srcAddr
,
2104 const GLchan
*src
= tempImage
;
2105 GLint img
, row
, col
;
2108 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2109 for (img
= 0; img
< srcDepth
; img
++) {
2110 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2111 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2112 + dstYoffset
* dstRowStride
2113 + dstXoffset
* dstFormat
->TexelBytes
;
2114 for (row
= 0; row
< srcHeight
; row
++) {
2115 GLushort
*dstUS
= (GLushort
*) dstRow
;
2116 if (dstFormat
== &_mesa_texformat_al88
) {
2117 for (col
= 0; col
< srcWidth
; col
++) {
2118 /* src[0] is luminance, src[1] is alpha */
2119 dstUS
[col
] = PACK_COLOR_88( CHAN_TO_UBYTE(src
[1]),
2120 CHAN_TO_UBYTE(src
[0]) );
2125 for (col
= 0; col
< srcWidth
; col
++) {
2126 /* src[0] is luminance, src[1] is alpha */
2127 dstUS
[col
] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src
[1]),
2128 CHAN_TO_UBYTE(src
[0]) );
2132 dstRow
+= dstRowStride
;
2135 _mesa_free((void *) tempImage
);
2142 _mesa_texstore_rgb332(TEXSTORE_PARAMS
)
2144 ASSERT(dstFormat
== &_mesa_texformat_rgb332
);
2145 ASSERT(dstFormat
->TexelBytes
== 1);
2147 if (!ctx
->_ImageTransferState
&&
2148 !srcPacking
->SwapBytes
&&
2149 baseInternalFormat
== GL_RGB
&&
2150 srcFormat
== GL_RGB
&& srcType
== GL_UNSIGNED_BYTE_3_3_2
) {
2151 /* simple memcpy path */
2152 memcpy_texture(ctx
, dims
,
2153 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2156 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2157 srcAddr
, srcPacking
);
2161 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2163 dstFormat
->BaseFormat
,
2164 srcWidth
, srcHeight
, srcDepth
,
2165 srcFormat
, srcType
, srcAddr
,
2167 const GLchan
*src
= tempImage
;
2168 GLint img
, row
, col
;
2171 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2172 for (img
= 0; img
< srcDepth
; img
++) {
2173 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2174 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2175 + dstYoffset
* dstRowStride
2176 + dstXoffset
* dstFormat
->TexelBytes
;
2177 for (row
= 0; row
< srcHeight
; row
++) {
2178 for (col
= 0; col
< srcWidth
; col
++) {
2179 dstRow
[col
] = PACK_COLOR_332( CHAN_TO_UBYTE(src
[RCOMP
]),
2180 CHAN_TO_UBYTE(src
[GCOMP
]),
2181 CHAN_TO_UBYTE(src
[BCOMP
]) );
2184 dstRow
+= dstRowStride
;
2187 _mesa_free((void *) tempImage
);
2194 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
2197 _mesa_texstore_a8(TEXSTORE_PARAMS
)
2199 ASSERT(dstFormat
== &_mesa_texformat_a8
||
2200 dstFormat
== &_mesa_texformat_l8
||
2201 dstFormat
== &_mesa_texformat_i8
);
2202 ASSERT(dstFormat
->TexelBytes
== 1);
2204 if (!ctx
->_ImageTransferState
&&
2205 !srcPacking
->SwapBytes
&&
2206 baseInternalFormat
== srcFormat
&&
2207 srcType
== GL_UNSIGNED_BYTE
) {
2208 /* simple memcpy path */
2209 memcpy_texture(ctx
, dims
,
2210 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2213 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2214 srcAddr
, srcPacking
);
2216 else if (!ctx
->_ImageTransferState
&&
2217 srcType
== GL_UNSIGNED_BYTE
&&
2218 can_swizzle(baseInternalFormat
) &&
2219 can_swizzle(srcFormat
)) {
2223 /* dstmap - how to swizzle from RGBA to dst format:
2225 if (dstFormat
== &_mesa_texformat_a8
) {
2231 dstmap
[1] = ZERO
; /* ? */
2232 dstmap
[2] = ZERO
; /* ? */
2233 dstmap
[3] = ONE
; /* ? */
2235 _mesa_swizzle_ubyte_image(ctx
, dims
,
2240 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2241 dstRowStride
, dstImageOffsets
,
2242 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2247 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2249 dstFormat
->BaseFormat
,
2250 srcWidth
, srcHeight
, srcDepth
,
2251 srcFormat
, srcType
, srcAddr
,
2253 const GLchan
*src
= tempImage
;
2254 GLint img
, row
, col
;
2257 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2258 for (img
= 0; img
< srcDepth
; img
++) {
2259 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2260 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2261 + dstYoffset
* dstRowStride
2262 + dstXoffset
* dstFormat
->TexelBytes
;
2263 for (row
= 0; row
< srcHeight
; row
++) {
2264 for (col
= 0; col
< srcWidth
; col
++) {
2265 dstRow
[col
] = CHAN_TO_UBYTE(src
[col
]);
2267 dstRow
+= dstRowStride
;
2271 _mesa_free((void *) tempImage
);
2279 _mesa_texstore_ci8(TEXSTORE_PARAMS
)
2281 (void) dims
; (void) baseInternalFormat
;
2282 ASSERT(dstFormat
== &_mesa_texformat_ci8
);
2283 ASSERT(dstFormat
->TexelBytes
== 1);
2284 ASSERT(baseInternalFormat
== GL_COLOR_INDEX
);
2286 if (!ctx
->_ImageTransferState
&&
2287 !srcPacking
->SwapBytes
&&
2288 srcFormat
== GL_COLOR_INDEX
&&
2289 srcType
== GL_UNSIGNED_BYTE
) {
2290 /* simple memcpy path */
2291 memcpy_texture(ctx
, dims
,
2292 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2295 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2296 srcAddr
, srcPacking
);
2301 for (img
= 0; img
< srcDepth
; img
++) {
2302 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2303 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2304 + dstYoffset
* dstRowStride
2305 + dstXoffset
* dstFormat
->TexelBytes
;
2306 for (row
= 0; row
< srcHeight
; row
++) {
2307 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
2308 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
2309 _mesa_unpack_index_span(ctx
, srcWidth
, GL_UNSIGNED_BYTE
, dstRow
,
2310 srcType
, src
, srcPacking
,
2311 ctx
->_ImageTransferState
);
2312 dstRow
+= dstRowStride
;
2321 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_rev.
2324 _mesa_texstore_ycbcr(TEXSTORE_PARAMS
)
2326 const GLboolean littleEndian
= _mesa_little_endian();
2327 (void) ctx
; (void) dims
; (void) baseInternalFormat
;
2329 ASSERT((dstFormat
== &_mesa_texformat_ycbcr
) ||
2330 (dstFormat
== &_mesa_texformat_ycbcr_rev
));
2331 ASSERT(dstFormat
->TexelBytes
== 2);
2332 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
2333 ASSERT(srcFormat
== GL_YCBCR_MESA
);
2334 ASSERT((srcType
== GL_UNSIGNED_SHORT_8_8_MESA
) ||
2335 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
));
2336 ASSERT(baseInternalFormat
== GL_YCBCR_MESA
);
2338 /* always just memcpy since no pixel transfer ops apply */
2339 memcpy_texture(ctx
, dims
,
2340 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2343 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2344 srcAddr
, srcPacking
);
2346 /* Check if we need byte swapping */
2347 /* XXX the logic here _might_ be wrong */
2348 if (srcPacking
->SwapBytes
^
2349 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
) ^
2350 (dstFormat
== &_mesa_texformat_ycbcr_rev
) ^
2353 for (img
= 0; img
< srcDepth
; img
++) {
2354 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2355 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2356 + dstYoffset
* dstRowStride
2357 + dstXoffset
* dstFormat
->TexelBytes
;
2358 for (row
= 0; row
< srcHeight
; row
++) {
2359 _mesa_swap2((GLushort
*) dstRow
, srcWidth
);
2360 dstRow
+= dstRowStride
;
2370 * Store a combined depth/stencil texture image.
2373 _mesa_texstore_z24_s8(TEXSTORE_PARAMS
)
2375 const GLfloat depthScale
= (GLfloat
) 0xffffff;
2377 ASSERT(dstFormat
== &_mesa_texformat_z24_s8
);
2378 ASSERT(srcFormat
== GL_DEPTH_STENCIL_EXT
);
2379 ASSERT(srcType
== GL_UNSIGNED_INT_24_8_EXT
);
2381 if (ctx
->Pixel
.DepthScale
== 1.0f
&&
2382 ctx
->Pixel
.DepthBias
== 0.0f
&&
2383 !srcPacking
->SwapBytes
) {
2385 memcpy_texture(ctx
, dims
,
2386 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2389 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2390 srcAddr
, srcPacking
);
2394 const GLint srcRowStride
2395 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2399 for (img
= 0; img
< srcDepth
; img
++) {
2400 GLuint
*dstRow
= (GLuint
*) dstAddr
2401 + dstImageOffsets
[dstZoffset
+ img
]
2402 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2405 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2406 srcWidth
, srcHeight
,
2409 for (row
= 0; row
< srcHeight
; row
++) {
2410 GLubyte stencil
[MAX_WIDTH
];
2412 /* the 24 depth bits will be in the high position: */
2413 _mesa_unpack_depth_span(ctx
, srcWidth
,
2414 GL_UNSIGNED_INT_24_8_EXT
, /* dst type */
2415 dstRow
, /* dst addr */
2416 (GLuint
) depthScale
,
2417 srcType
, src
, srcPacking
);
2418 /* get the 8-bit stencil values */
2419 _mesa_unpack_stencil_span(ctx
, srcWidth
,
2420 GL_UNSIGNED_BYTE
, /* dst type */
2421 stencil
, /* dst addr */
2422 srcType
, src
, srcPacking
,
2423 ctx
->_ImageTransferState
);
2424 /* merge stencil values into depth values */
2425 for (i
= 0; i
< srcWidth
; i
++)
2426 dstRow
[i
] |= stencil
[i
];
2428 src
+= srcRowStride
;
2429 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2438 * Store a combined depth/stencil texture image.
2441 _mesa_texstore_s8_z24(TEXSTORE_PARAMS
)
2443 const GLuint depthScale
= 0xffffff;
2444 const GLint srcRowStride
2445 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2449 ASSERT(dstFormat
== &_mesa_texformat_s8_z24
);
2450 ASSERT(srcFormat
== GL_DEPTH_STENCIL_EXT
|| srcFormat
== GL_DEPTH_COMPONENT
);
2451 ASSERT(srcFormat
!= GL_DEPTH_STENCIL_EXT
|| srcType
== GL_UNSIGNED_INT_24_8_EXT
);
2453 /* In case we only upload depth we need to preserve the stencil */
2454 if (srcFormat
== GL_DEPTH_COMPONENT
) {
2455 for (img
= 0; img
< srcDepth
; img
++) {
2456 GLuint
*dstRow
= (GLuint
*) dstAddr
2457 + dstImageOffsets
[dstZoffset
+ img
]
2458 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2461 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2462 srcWidth
, srcHeight
,
2465 for (row
= 0; row
< srcHeight
; row
++) {
2466 GLuint depth
[MAX_WIDTH
];
2468 _mesa_unpack_depth_span(ctx
, srcWidth
,
2469 GL_UNSIGNED_INT
, /* dst type */
2470 depth
, /* dst addr */
2472 srcType
, src
, srcPacking
);
2474 for (i
= 0; i
< srcWidth
; i
++)
2475 dstRow
[i
] = depth
[i
] | (dstRow
[i
] & 0xFF000000);
2477 src
+= srcRowStride
;
2478 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2483 for (img
= 0; img
< srcDepth
; img
++) {
2484 GLuint
*dstRow
= (GLuint
*) dstAddr
2485 + dstImageOffsets
[dstZoffset
+ img
]
2486 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2489 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2490 srcWidth
, srcHeight
,
2493 for (row
= 0; row
< srcHeight
; row
++) {
2494 GLubyte stencil
[MAX_WIDTH
];
2496 /* the 24 depth bits will be in the low position: */
2497 _mesa_unpack_depth_span(ctx
, srcWidth
,
2498 GL_UNSIGNED_INT
, /* dst type */
2499 dstRow
, /* dst addr */
2501 srcType
, src
, srcPacking
);
2502 /* get the 8-bit stencil values */
2503 _mesa_unpack_stencil_span(ctx
, srcWidth
,
2504 GL_UNSIGNED_BYTE
, /* dst type */
2505 stencil
, /* dst addr */
2506 srcType
, src
, srcPacking
,
2507 ctx
->_ImageTransferState
);
2508 /* merge stencil values into depth values */
2509 for (i
= 0; i
< srcWidth
; i
++)
2510 dstRow
[i
] |= stencil
[i
] << 24;
2512 src
+= srcRowStride
;
2513 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2521 * Store an image in any of the formats:
2522 * _mesa_texformat_rgba_float32
2523 * _mesa_texformat_rgb_float32
2524 * _mesa_texformat_alpha_float32
2525 * _mesa_texformat_luminance_float32
2526 * _mesa_texformat_luminance_alpha_float32
2527 * _mesa_texformat_intensity_float32
2530 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS
)
2532 const GLint components
= _mesa_components_in_format(dstFormat
->BaseFormat
);
2534 ASSERT(dstFormat
== &_mesa_texformat_rgba_float32
||
2535 dstFormat
== &_mesa_texformat_rgb_float32
||
2536 dstFormat
== &_mesa_texformat_alpha_float32
||
2537 dstFormat
== &_mesa_texformat_luminance_float32
||
2538 dstFormat
== &_mesa_texformat_luminance_alpha_float32
||
2539 dstFormat
== &_mesa_texformat_intensity_float32
);
2540 ASSERT(baseInternalFormat
== GL_RGBA
||
2541 baseInternalFormat
== GL_RGB
||
2542 baseInternalFormat
== GL_ALPHA
||
2543 baseInternalFormat
== GL_LUMINANCE
||
2544 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
2545 baseInternalFormat
== GL_INTENSITY
);
2546 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLfloat
));
2548 if (!ctx
->_ImageTransferState
&&
2549 !srcPacking
->SwapBytes
&&
2550 baseInternalFormat
== srcFormat
&&
2551 srcType
== GL_FLOAT
) {
2552 /* simple memcpy path */
2553 memcpy_texture(ctx
, dims
,
2554 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2557 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2558 srcAddr
, srcPacking
);
2562 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2564 dstFormat
->BaseFormat
,
2565 srcWidth
, srcHeight
, srcDepth
,
2566 srcFormat
, srcType
, srcAddr
,
2568 const GLfloat
*srcRow
= tempImage
;
2573 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2574 bytesPerRow
= srcWidth
* components
* sizeof(GLfloat
);
2575 for (img
= 0; img
< srcDepth
; img
++) {
2576 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2577 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2578 + dstYoffset
* dstRowStride
2579 + dstXoffset
* dstFormat
->TexelBytes
;
2580 for (row
= 0; row
< srcHeight
; row
++) {
2581 _mesa_memcpy(dstRow
, srcRow
, bytesPerRow
);
2582 dstRow
+= dstRowStride
;
2583 srcRow
+= srcWidth
* components
;
2587 _mesa_free((void *) tempImage
);
2594 * As above, but store 16-bit floats.
2597 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS
)
2599 const GLint components
= _mesa_components_in_format(dstFormat
->BaseFormat
);
2601 ASSERT(dstFormat
== &_mesa_texformat_rgba_float16
||
2602 dstFormat
== &_mesa_texformat_rgb_float16
||
2603 dstFormat
== &_mesa_texformat_alpha_float16
||
2604 dstFormat
== &_mesa_texformat_luminance_float16
||
2605 dstFormat
== &_mesa_texformat_luminance_alpha_float16
||
2606 dstFormat
== &_mesa_texformat_intensity_float16
);
2607 ASSERT(baseInternalFormat
== GL_RGBA
||
2608 baseInternalFormat
== GL_RGB
||
2609 baseInternalFormat
== GL_ALPHA
||
2610 baseInternalFormat
== GL_LUMINANCE
||
2611 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
2612 baseInternalFormat
== GL_INTENSITY
);
2613 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLhalfARB
));
2615 if (!ctx
->_ImageTransferState
&&
2616 !srcPacking
->SwapBytes
&&
2617 baseInternalFormat
== srcFormat
&&
2618 srcType
== GL_HALF_FLOAT_ARB
) {
2619 /* simple memcpy path */
2620 memcpy_texture(ctx
, dims
,
2621 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2624 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2625 srcAddr
, srcPacking
);
2629 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2631 dstFormat
->BaseFormat
,
2632 srcWidth
, srcHeight
, srcDepth
,
2633 srcFormat
, srcType
, srcAddr
,
2635 const GLfloat
*src
= tempImage
;
2639 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2640 for (img
= 0; img
< srcDepth
; img
++) {
2641 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2642 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2643 + dstYoffset
* dstRowStride
2644 + dstXoffset
* dstFormat
->TexelBytes
;
2645 for (row
= 0; row
< srcHeight
; row
++) {
2646 GLhalfARB
*dstTexel
= (GLhalfARB
*) dstRow
;
2648 for (i
= 0; i
< srcWidth
* components
; i
++) {
2649 dstTexel
[i
] = _mesa_float_to_half(src
[i
]);
2651 dstRow
+= dstRowStride
;
2652 src
+= srcWidth
* components
;
2656 _mesa_free((void *) tempImage
);
2662 #if FEATURE_EXT_texture_sRGB
2664 _mesa_texstore_srgb8(TEXSTORE_PARAMS
)
2666 const struct gl_texture_format
*newDstFormat
;
2667 StoreTexImageFunc store
;
2670 ASSERT(dstFormat
== &_mesa_texformat_srgb8
);
2672 /* reuse normal rgb texstore code */
2673 newDstFormat
= &_mesa_texformat_rgb888
;
2674 store
= _mesa_texstore_rgb888
;
2676 k
= store(ctx
, dims
, baseInternalFormat
,
2677 newDstFormat
, dstAddr
,
2678 dstXoffset
, dstYoffset
, dstZoffset
,
2679 dstRowStride
, dstImageOffsets
,
2680 srcWidth
, srcHeight
, srcDepth
,
2682 srcAddr
, srcPacking
);
2688 _mesa_texstore_srgba8(TEXSTORE_PARAMS
)
2690 const struct gl_texture_format
*newDstFormat
;
2693 ASSERT(dstFormat
== &_mesa_texformat_srgba8
);
2695 /* reuse normal rgba texstore code */
2696 newDstFormat
= &_mesa_texformat_rgba8888
;
2698 k
= _mesa_texstore_rgba8888(ctx
, dims
, baseInternalFormat
,
2699 newDstFormat
, dstAddr
,
2700 dstXoffset
, dstYoffset
, dstZoffset
,
2701 dstRowStride
, dstImageOffsets
,
2702 srcWidth
, srcHeight
, srcDepth
,
2704 srcAddr
, srcPacking
);
2710 _mesa_texstore_sargb8(TEXSTORE_PARAMS
)
2712 const struct gl_texture_format
*newDstFormat
;
2715 ASSERT(dstFormat
== &_mesa_texformat_sargb8
);
2717 /* reuse normal rgba texstore code */
2718 newDstFormat
= &_mesa_texformat_argb8888
;
2720 k
= _mesa_texstore_argb8888(ctx
, dims
, baseInternalFormat
,
2721 newDstFormat
, dstAddr
,
2722 dstXoffset
, dstYoffset
, dstZoffset
,
2723 dstRowStride
, dstImageOffsets
,
2724 srcWidth
, srcHeight
, srcDepth
,
2726 srcAddr
, srcPacking
);
2732 _mesa_texstore_sl8(TEXSTORE_PARAMS
)
2734 const struct gl_texture_format
*newDstFormat
;
2737 ASSERT(dstFormat
== &_mesa_texformat_sl8
);
2739 newDstFormat
= &_mesa_texformat_l8
;
2741 /* _mesa_textore_a8 handles luminance8 too */
2742 k
= _mesa_texstore_a8(ctx
, dims
, baseInternalFormat
,
2743 newDstFormat
, dstAddr
,
2744 dstXoffset
, dstYoffset
, dstZoffset
,
2745 dstRowStride
, dstImageOffsets
,
2746 srcWidth
, srcHeight
, srcDepth
,
2748 srcAddr
, srcPacking
);
2754 _mesa_texstore_sla8(TEXSTORE_PARAMS
)
2756 const struct gl_texture_format
*newDstFormat
;
2759 ASSERT(dstFormat
== &_mesa_texformat_sla8
);
2761 /* reuse normal luminance/alpha texstore code */
2762 newDstFormat
= &_mesa_texformat_al88
;
2764 k
= _mesa_texstore_al88(ctx
, dims
, baseInternalFormat
,
2765 newDstFormat
, dstAddr
,
2766 dstXoffset
, dstYoffset
, dstZoffset
,
2767 dstRowStride
, dstImageOffsets
,
2768 srcWidth
, srcHeight
, srcDepth
,
2770 srcAddr
, srcPacking
);
2774 #endif /* FEATURE_EXT_texture_sRGB */
2778 * Check if an unpack PBO is active prior to fetching a texture image.
2779 * If so, do bounds checking and map the buffer into main memory.
2780 * Any errors detected will be recorded.
2781 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
2784 _mesa_validate_pbo_teximage(GLcontext
*ctx
, GLuint dimensions
,
2785 GLsizei width
, GLsizei height
, GLsizei depth
,
2786 GLenum format
, GLenum type
, const GLvoid
*pixels
,
2787 const struct gl_pixelstore_attrib
*unpack
,
2788 const char *funcName
)
2792 if (unpack
->BufferObj
->Name
== 0) {
2796 if (!_mesa_validate_pbo_access(dimensions
, unpack
, width
, height
, depth
,
2797 format
, type
, pixels
)) {
2798 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(invalid PBO access");
2802 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
2803 GL_READ_ONLY_ARB
, unpack
->BufferObj
);
2805 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(PBO is mapped");
2809 return ADD_POINTERS(buf
, pixels
);
2814 * Check if an unpack PBO is active prior to fetching a compressed texture
2816 * If so, do bounds checking and map the buffer into main memory.
2817 * Any errors detected will be recorded.
2818 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
2821 _mesa_validate_pbo_compressed_teximage(GLcontext
*ctx
,
2822 GLsizei imageSize
, const GLvoid
*pixels
,
2823 const struct gl_pixelstore_attrib
*packing
,
2824 const char *funcName
)
2828 if (packing
->BufferObj
->Name
== 0) {
2829 /* not using a PBO - return pointer unchanged */
2832 if ((const GLubyte
*) pixels
+ imageSize
>
2833 ((const GLubyte
*) 0) + packing
->BufferObj
->Size
) {
2834 /* out of bounds read! */
2835 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(invalid PBO access");
2839 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
2840 GL_READ_ONLY_ARB
, packing
->BufferObj
);
2842 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(PBO is mapped");
2846 return ADD_POINTERS(buf
, pixels
);
2851 * This function must be called after either of the validate_pbo_*_teximage()
2852 * functions. It unmaps the PBO buffer if it was mapped earlier.
2855 _mesa_unmap_teximage_pbo(GLcontext
*ctx
,
2856 const struct gl_pixelstore_attrib
*unpack
)
2858 if (unpack
->BufferObj
->Name
) {
2859 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
2867 * Adaptor for fetching a GLchan texel from a float-valued texture.
2870 fetch_texel_float_to_chan(const struct gl_texture_image
*texImage
,
2871 GLint i
, GLint j
, GLint k
, GLchan
*texelOut
)
2874 ASSERT(texImage
->FetchTexelf
);
2875 texImage
->FetchTexelf(texImage
, i
, j
, k
, temp
);
2876 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
||
2877 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2878 /* just one channel */
2879 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[0], temp
[0]);
2883 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[0], temp
[0]);
2884 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[1], temp
[1]);
2885 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[2], temp
[2]);
2886 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[3], temp
[3]);
2892 * Adaptor for fetching a float texel from a GLchan-valued texture.
2895 fetch_texel_chan_to_float(const struct gl_texture_image
*texImage
,
2896 GLint i
, GLint j
, GLint k
, GLfloat
*texelOut
)
2899 ASSERT(texImage
->FetchTexelc
);
2900 texImage
->FetchTexelc(texImage
, i
, j
, k
, temp
);
2901 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
||
2902 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2903 /* just one channel */
2904 texelOut
[0] = CHAN_TO_FLOAT(temp
[0]);
2908 texelOut
[0] = CHAN_TO_FLOAT(temp
[0]);
2909 texelOut
[1] = CHAN_TO_FLOAT(temp
[1]);
2910 texelOut
[2] = CHAN_TO_FLOAT(temp
[2]);
2911 texelOut
[3] = CHAN_TO_FLOAT(temp
[3]);
2917 * Initialize the texture image's FetchTexelc and FetchTexelf methods.
2920 _mesa_set_fetch_functions(struct gl_texture_image
*texImage
, GLuint dims
)
2922 ASSERT(dims
== 1 || dims
== 2 || dims
== 3);
2923 ASSERT(texImage
->TexFormat
);
2927 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel1D
;
2928 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel1Df
;
2931 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel2D
;
2932 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel2Df
;
2935 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel3D
;
2936 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel3Df
;
2942 /* now check if we need to use a float/chan adaptor */
2943 if (!texImage
->FetchTexelc
) {
2944 texImage
->FetchTexelc
= fetch_texel_float_to_chan
;
2946 else if (!texImage
->FetchTexelf
) {
2947 texImage
->FetchTexelf
= fetch_texel_chan_to_float
;
2951 ASSERT(texImage
->FetchTexelc
);
2952 ASSERT(texImage
->FetchTexelf
);
2957 * Choose the actual storage format for a new texture image.
2958 * Mainly, this is a wrapper for the driver's ChooseTextureFormat() function.
2959 * Also set some other texImage fields related to texture compression, etc.
2960 * \param ctx rendering context
2961 * \param texImage the gl_texture_image
2962 * \param dims texture dimensions (1, 2 or 3)
2963 * \param format the user-specified format parameter
2964 * \param type the user-specified type parameter
2965 * \param internalFormat the user-specified internal format hint
2968 choose_texture_format(GLcontext
*ctx
, struct gl_texture_image
*texImage
,
2970 GLenum format
, GLenum type
, GLint internalFormat
)
2972 ASSERT(dims
== 1 || dims
== 2 || dims
== 3);
2973 ASSERT(ctx
->Driver
.ChooseTextureFormat
);
2976 = ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2978 ASSERT(texImage
->TexFormat
);
2980 _mesa_set_fetch_functions(texImage
, dims
);
2982 if (texImage
->TexFormat
->TexelBytes
== 0) {
2983 /* must be a compressed format */
2984 texImage
->IsCompressed
= GL_TRUE
;
2985 texImage
->CompressedSize
=
2986 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
2987 texImage
->Height
, texImage
->Depth
,
2988 texImage
->TexFormat
->MesaFormat
);
2991 /* non-compressed format */
2992 texImage
->IsCompressed
= GL_FALSE
;
2993 texImage
->CompressedSize
= 0;
3000 * This is the software fallback for Driver.TexImage1D()
3001 * and Driver.CopyTexImage1D().
3002 * \sa _mesa_store_teximage2d()
3003 * Note that the width may not be the actual texture width since it may
3004 * be changed by convolution w/ GL_REDUCE. The texImage->Width field will
3005 * have the actual texture size.
3008 _mesa_store_teximage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3009 GLint internalFormat
,
3010 GLint width
, GLint border
,
3011 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3012 const struct gl_pixelstore_attrib
*packing
,
3013 struct gl_texture_object
*texObj
,
3014 struct gl_texture_image
*texImage
)
3019 choose_texture_format(ctx
, texImage
, 1, format
, type
, internalFormat
);
3021 /* allocate memory */
3022 if (texImage
->IsCompressed
)
3023 sizeInBytes
= texImage
->CompressedSize
;
3025 sizeInBytes
= texImage
->Width
* texImage
->TexFormat
->TexelBytes
;
3026 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3027 if (!texImage
->Data
) {
3028 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage1D");
3032 pixels
= _mesa_validate_pbo_teximage(ctx
, 1, width
, 1, 1, format
, type
,
3033 pixels
, packing
, "glTexImage1D");
3035 /* Note: we check for a NULL image pointer here, _after_ we allocated
3036 * memory for the texture. That's what the GL spec calls for.
3041 const GLint dstRowStride
= 0;
3043 ASSERT(texImage
->TexFormat
->StoreImage
);
3044 success
= texImage
->TexFormat
->StoreImage(ctx
, 1, texImage
->_BaseFormat
,
3045 texImage
->TexFormat
,
3047 0, 0, 0, /* dstX/Y/Zoffset */
3049 texImage
->ImageOffsets
,
3051 format
, type
, pixels
, packing
);
3053 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage1D");
3057 /* GL_SGIS_generate_mipmap */
3058 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3059 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3062 _mesa_unmap_teximage_pbo(ctx
, packing
);
3067 * This is the software fallback for Driver.TexImage2D()
3068 * and Driver.CopyTexImage2D().
3070 * This function is oriented toward storing images in main memory, rather
3071 * than VRAM. Device driver's can easily plug in their own replacement.
3073 * Note: width and height may be pre-convolved dimensions, but
3074 * texImage->Width and texImage->Height will be post-convolved dimensions.
3077 _mesa_store_teximage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3078 GLint internalFormat
,
3079 GLint width
, GLint height
, GLint border
,
3080 GLenum format
, GLenum type
, const void *pixels
,
3081 const struct gl_pixelstore_attrib
*packing
,
3082 struct gl_texture_object
*texObj
,
3083 struct gl_texture_image
*texImage
)
3085 GLint texelBytes
, sizeInBytes
;
3088 choose_texture_format(ctx
, texImage
, 2, format
, type
, internalFormat
);
3090 texelBytes
= texImage
->TexFormat
->TexelBytes
;
3092 /* allocate memory */
3093 if (texImage
->IsCompressed
)
3094 sizeInBytes
= texImage
->CompressedSize
;
3096 sizeInBytes
= texImage
->Width
* texImage
->Height
* texelBytes
;
3097 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3098 if (!texImage
->Data
) {
3099 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage2D");
3103 pixels
= _mesa_validate_pbo_teximage(ctx
, 2, width
, height
, 1, format
, type
,
3104 pixels
, packing
, "glTexImage2D");
3106 /* Note: we check for a NULL image pointer here, _after_ we allocated
3107 * memory for the texture. That's what the GL spec calls for.
3114 if (texImage
->IsCompressed
) {
3116 = _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
3119 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3121 ASSERT(texImage
->TexFormat
->StoreImage
);
3122 success
= texImage
->TexFormat
->StoreImage(ctx
, 2, texImage
->_BaseFormat
,
3123 texImage
->TexFormat
,
3125 0, 0, 0, /* dstX/Y/Zoffset */
3127 texImage
->ImageOffsets
,
3129 format
, type
, pixels
, packing
);
3131 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage2D");
3135 /* GL_SGIS_generate_mipmap */
3136 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3137 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3140 _mesa_unmap_teximage_pbo(ctx
, packing
);
3146 * This is the software fallback for Driver.TexImage3D()
3147 * and Driver.CopyTexImage3D().
3148 * \sa _mesa_store_teximage2d()
3151 _mesa_store_teximage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3152 GLint internalFormat
,
3153 GLint width
, GLint height
, GLint depth
, GLint border
,
3154 GLenum format
, GLenum type
, const void *pixels
,
3155 const struct gl_pixelstore_attrib
*packing
,
3156 struct gl_texture_object
*texObj
,
3157 struct gl_texture_image
*texImage
)
3159 GLint texelBytes
, sizeInBytes
;
3162 choose_texture_format(ctx
, texImage
, 3, format
, type
, internalFormat
);
3164 texelBytes
= texImage
->TexFormat
->TexelBytes
;
3166 /* allocate memory */
3167 if (texImage
->IsCompressed
)
3168 sizeInBytes
= texImage
->CompressedSize
;
3170 sizeInBytes
= width
* height
* depth
* texelBytes
;
3171 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3172 if (!texImage
->Data
) {
3173 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage3D");
3177 pixels
= _mesa_validate_pbo_teximage(ctx
, 3, width
, height
, depth
, format
,
3178 type
, pixels
, packing
, "glTexImage3D");
3180 /* Note: we check for a NULL image pointer here, _after_ we allocated
3181 * memory for the texture. That's what the GL spec calls for.
3188 if (texImage
->IsCompressed
) {
3190 = _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
3193 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3195 ASSERT(texImage
->TexFormat
->StoreImage
);
3196 success
= texImage
->TexFormat
->StoreImage(ctx
, 3, texImage
->_BaseFormat
,
3197 texImage
->TexFormat
,
3199 0, 0, 0, /* dstX/Y/Zoffset */
3201 texImage
->ImageOffsets
,
3202 width
, height
, depth
,
3203 format
, type
, pixels
, packing
);
3205 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage3D");
3209 /* GL_SGIS_generate_mipmap */
3210 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3211 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3214 _mesa_unmap_teximage_pbo(ctx
, packing
);
3221 * This is the software fallback for Driver.TexSubImage1D()
3222 * and Driver.CopyTexSubImage1D().
3225 _mesa_store_texsubimage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3226 GLint xoffset
, GLint width
,
3227 GLenum format
, GLenum type
, const void *pixels
,
3228 const struct gl_pixelstore_attrib
*packing
,
3229 struct gl_texture_object
*texObj
,
3230 struct gl_texture_image
*texImage
)
3232 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3233 pixels
= _mesa_validate_pbo_teximage(ctx
, 1, width
, 1, 1, format
, type
,
3234 pixels
, packing
, "glTexSubImage1D");
3239 const GLint dstRowStride
= 0;
3241 ASSERT(texImage
->TexFormat
->StoreImage
);
3242 success
= texImage
->TexFormat
->StoreImage(ctx
, 1, texImage
->_BaseFormat
,
3243 texImage
->TexFormat
,
3245 xoffset
, 0, 0, /* offsets */
3247 texImage
->ImageOffsets
,
3249 format
, type
, pixels
, packing
);
3251 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage1D");
3255 /* GL_SGIS_generate_mipmap */
3256 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3257 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3260 _mesa_unmap_teximage_pbo(ctx
, packing
);
3266 * This is the software fallback for Driver.TexSubImage2D()
3267 * and Driver.CopyTexSubImage2D().
3270 _mesa_store_texsubimage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3271 GLint xoffset
, GLint yoffset
,
3272 GLint width
, GLint height
,
3273 GLenum format
, GLenum type
, const void *pixels
,
3274 const struct gl_pixelstore_attrib
*packing
,
3275 struct gl_texture_object
*texObj
,
3276 struct gl_texture_image
*texImage
)
3278 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3279 pixels
= _mesa_validate_pbo_teximage(ctx
, 2, width
, height
, 1, format
, type
,
3280 pixels
, packing
, "glTexSubImage2D");
3285 GLint dstRowStride
= 0;
3287 if (texImage
->IsCompressed
) {
3288 dstRowStride
= _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
,
3292 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3294 ASSERT(texImage
->TexFormat
->StoreImage
);
3295 success
= texImage
->TexFormat
->StoreImage(ctx
, 2, texImage
->_BaseFormat
,
3296 texImage
->TexFormat
,
3298 xoffset
, yoffset
, 0,
3300 texImage
->ImageOffsets
,
3302 format
, type
, pixels
, packing
);
3304 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage2D");
3308 /* GL_SGIS_generate_mipmap */
3309 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3310 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3313 _mesa_unmap_teximage_pbo(ctx
, packing
);
3318 * This is the software fallback for Driver.TexSubImage3D().
3319 * and Driver.CopyTexSubImage3D().
3322 _mesa_store_texsubimage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3323 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3324 GLint width
, GLint height
, GLint depth
,
3325 GLenum format
, GLenum type
, const void *pixels
,
3326 const struct gl_pixelstore_attrib
*packing
,
3327 struct gl_texture_object
*texObj
,
3328 struct gl_texture_image
*texImage
)
3330 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3331 pixels
= _mesa_validate_pbo_teximage(ctx
, 3, width
, height
, depth
, format
,
3332 type
, pixels
, packing
,
3340 if (texImage
->IsCompressed
) {
3341 dstRowStride
= _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
,
3345 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3347 ASSERT(texImage
->TexFormat
->StoreImage
);
3348 success
= texImage
->TexFormat
->StoreImage(ctx
, 3, texImage
->_BaseFormat
,
3349 texImage
->TexFormat
,
3351 xoffset
, yoffset
, zoffset
,
3353 texImage
->ImageOffsets
,
3354 width
, height
, depth
,
3355 format
, type
, pixels
, packing
);
3357 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage3D");
3361 /* GL_SGIS_generate_mipmap */
3362 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3363 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3366 _mesa_unmap_teximage_pbo(ctx
, packing
);
3371 * Fallback for Driver.CompressedTexImage1D()
3374 _mesa_store_compressed_teximage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3375 GLint internalFormat
,
3376 GLint width
, GLint border
,
3377 GLsizei imageSize
, const GLvoid
*data
,
3378 struct gl_texture_object
*texObj
,
3379 struct gl_texture_image
*texImage
)
3381 /* this space intentionally left blank */
3383 (void) target
; (void) level
;
3384 (void) internalFormat
;
3385 (void) width
; (void) border
;
3386 (void) imageSize
; (void) data
;
3394 * Fallback for Driver.CompressedTexImage2D()
3397 _mesa_store_compressed_teximage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3398 GLint internalFormat
,
3399 GLint width
, GLint height
, GLint border
,
3400 GLsizei imageSize
, const GLvoid
*data
,
3401 struct gl_texture_object
*texObj
,
3402 struct gl_texture_image
*texImage
)
3404 (void) width
; (void) height
; (void) border
;
3406 /* This is pretty simple, basically just do a memcpy without worrying
3407 * about the usual image unpacking or image transfer operations.
3411 ASSERT(texImage
->Width
> 0);
3412 ASSERT(texImage
->Height
> 0);
3413 ASSERT(texImage
->Depth
== 1);
3414 ASSERT(texImage
->Data
== NULL
); /* was freed in glCompressedTexImage2DARB */
3416 choose_texture_format(ctx
, texImage
, 2, 0, 0, internalFormat
);
3418 /* allocate storage */
3419 texImage
->Data
= _mesa_alloc_texmemory(imageSize
);
3420 if (!texImage
->Data
) {
3421 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexImage2DARB");
3425 data
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, data
,
3427 "glCompressedTexImage2D");
3432 ASSERT(texImage
->CompressedSize
== (GLuint
) imageSize
);
3433 MEMCPY(texImage
->Data
, data
, imageSize
);
3435 /* GL_SGIS_generate_mipmap */
3436 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3437 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3440 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);
3446 * Fallback for Driver.CompressedTexImage3D()
3449 _mesa_store_compressed_teximage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3450 GLint internalFormat
,
3451 GLint width
, GLint height
, GLint depth
,
3453 GLsizei imageSize
, const GLvoid
*data
,
3454 struct gl_texture_object
*texObj
,
3455 struct gl_texture_image
*texImage
)
3457 /* this space intentionally left blank */
3459 (void) target
; (void) level
;
3460 (void) internalFormat
;
3461 (void) width
; (void) height
; (void) depth
;
3463 (void) imageSize
; (void) data
;
3471 * Fallback for Driver.CompressedTexSubImage1D()
3474 _mesa_store_compressed_texsubimage1d(GLcontext
*ctx
, GLenum target
,
3476 GLint xoffset
, GLsizei width
,
3478 GLsizei imageSize
, const GLvoid
*data
,
3479 struct gl_texture_object
*texObj
,
3480 struct gl_texture_image
*texImage
)
3482 /* there are no compressed 1D texture formats yet */
3484 (void) target
; (void) level
;
3485 (void) xoffset
; (void) width
;
3487 (void) imageSize
; (void) data
;
3494 * Fallback for Driver.CompressedTexSubImage2D()
3497 _mesa_store_compressed_texsubimage2d(GLcontext
*ctx
, GLenum target
,
3499 GLint xoffset
, GLint yoffset
,
3500 GLsizei width
, GLsizei height
,
3502 GLsizei imageSize
, const GLvoid
*data
,
3503 struct gl_texture_object
*texObj
,
3504 struct gl_texture_image
*texImage
)
3506 GLint bytesPerRow
, destRowStride
, srcRowStride
;
3510 const GLuint mesaFormat
= texImage
->TexFormat
->MesaFormat
;
3514 /* these should have been caught sooner */
3515 ASSERT((width
& 3) == 0 || width
== 2 || width
== 1);
3516 ASSERT((height
& 3) == 0 || height
== 2 || height
== 1);
3517 ASSERT((xoffset
& 3) == 0);
3518 ASSERT((yoffset
& 3) == 0);
3520 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3521 data
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, data
,
3523 "glCompressedTexSubImage2D");
3527 srcRowStride
= _mesa_compressed_row_stride(mesaFormat
, width
);
3528 src
= (const GLubyte
*) data
;
3530 destRowStride
= _mesa_compressed_row_stride(mesaFormat
, texImage
->Width
);
3531 dest
= _mesa_compressed_image_address(xoffset
, yoffset
, 0,
3532 texImage
->TexFormat
->MesaFormat
,
3534 (GLubyte
*) texImage
->Data
);
3536 bytesPerRow
= srcRowStride
;
3539 for (i
= 0; i
< rows
; i
++) {
3540 MEMCPY(dest
, src
, bytesPerRow
);
3541 dest
+= destRowStride
;
3542 src
+= srcRowStride
;
3545 /* GL_SGIS_generate_mipmap */
3546 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3547 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3550 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);
3555 * Fallback for Driver.CompressedTexSubImage3D()
3558 _mesa_store_compressed_texsubimage3d(GLcontext
*ctx
, GLenum target
,
3560 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3561 GLsizei width
, GLsizei height
, GLsizei depth
,
3563 GLsizei imageSize
, const GLvoid
*data
,
3564 struct gl_texture_object
*texObj
,
3565 struct gl_texture_image
*texImage
)
3567 /* there are no compressed 3D texture formats yet */
3569 (void) target
; (void) level
;
3570 (void) xoffset
; (void) yoffset
; (void) zoffset
;
3571 (void) width
; (void) height
; (void) depth
;
3573 (void) imageSize
; (void) data
;
3581 #if FEATURE_EXT_texture_sRGB
3584 * Test if given texture image is an sRGB format.
3587 is_srgb_teximage(const struct gl_texture_image
*texImage
)
3589 switch (texImage
->TexFormat
->MesaFormat
) {
3590 case MESA_FORMAT_SRGB8
:
3591 case MESA_FORMAT_SRGBA8
:
3592 case MESA_FORMAT_SARGB8
:
3593 case MESA_FORMAT_SL8
:
3594 case MESA_FORMAT_SLA8
:
3601 #endif /* FEATURE_EXT_texture_sRGB */
3605 * This is the software fallback for Driver.GetTexImage().
3606 * All error checking will have been done before this routine is called.
3609 _mesa_get_teximage(GLcontext
*ctx
, GLenum target
, GLint level
,
3610 GLenum format
, GLenum type
, GLvoid
*pixels
,
3611 struct gl_texture_object
*texObj
,
3612 struct gl_texture_image
*texImage
)
3614 const GLuint dimensions
= (target
== GL_TEXTURE_3D
) ? 3 : 2;
3616 if (ctx
->Pack
.BufferObj
->Name
) {
3617 /* Packing texture image into a PBO.
3618 * Map the (potentially) VRAM-based buffer into our process space so
3619 * we can write into it with the code below.
3620 * A hardware driver might use a sophisticated blit to move the
3621 * texture data to the PBO if the PBO is in VRAM along with the texture.
3623 GLubyte
*buf
= (GLubyte
*)
3624 ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3625 GL_WRITE_ONLY_ARB
, ctx
->Pack
.BufferObj
);
3627 /* buffer is already mapped - that's an error */
3628 _mesa_error(ctx
, GL_INVALID_OPERATION
,"glGetTexImage(PBO is mapped)");
3631 /* <pixels> was an offset into the PBO.
3632 * Now make it a real, client-side pointer inside the mapped region.
3634 pixels
= ADD_POINTERS(buf
, pixels
);
3642 const GLint width
= texImage
->Width
;
3643 const GLint height
= texImage
->Height
;
3644 const GLint depth
= texImage
->Depth
;
3646 for (img
= 0; img
< depth
; img
++) {
3647 for (row
= 0; row
< height
; row
++) {
3648 /* compute destination address in client memory */
3649 GLvoid
*dest
= _mesa_image_address( dimensions
, &ctx
->Pack
, pixels
,
3650 width
, height
, format
, type
,
3654 if (format
== GL_COLOR_INDEX
) {
3655 GLuint indexRow
[MAX_WIDTH
];
3657 /* Can't use FetchTexel here because that returns RGBA */
3658 if (texImage
->TexFormat
->IndexBits
== 8) {
3659 const GLubyte
*src
= (const GLubyte
*) texImage
->Data
;
3660 src
+= width
* (img
* texImage
->Height
+ row
);
3661 for (col
= 0; col
< width
; col
++) {
3662 indexRow
[col
] = src
[col
];
3665 else if (texImage
->TexFormat
->IndexBits
== 16) {
3666 const GLushort
*src
= (const GLushort
*) texImage
->Data
;
3667 src
+= width
* (img
* texImage
->Height
+ row
);
3668 for (col
= 0; col
< width
; col
++) {
3669 indexRow
[col
] = src
[col
];
3674 "Color index problem in _mesa_GetTexImage");
3676 _mesa_pack_index_span(ctx
, width
, type
, dest
,
3677 indexRow
, &ctx
->Pack
,
3678 0 /* no image transfer */);
3680 else if (format
== GL_DEPTH_COMPONENT
) {
3681 GLfloat depthRow
[MAX_WIDTH
];
3683 for (col
= 0; col
< width
; col
++) {
3684 (*texImage
->FetchTexelf
)(texImage
, col
, row
, img
,
3687 _mesa_pack_depth_span(ctx
, width
, dest
, type
,
3688 depthRow
, &ctx
->Pack
);
3690 else if (format
== GL_DEPTH_STENCIL_EXT
) {
3691 /* XXX Note: we're bypassing texImage->FetchTexel()! */
3692 const GLuint
*src
= (const GLuint
*) texImage
->Data
;
3693 src
+= width
* row
+ width
* height
* img
;
3694 _mesa_memcpy(dest
, src
, width
* sizeof(GLuint
));
3695 if (ctx
->Pack
.SwapBytes
) {
3696 _mesa_swap4((GLuint
*) dest
, width
);
3699 else if (format
== GL_YCBCR_MESA
) {
3700 /* No pixel transfer */
3701 const GLint rowstride
= texImage
->RowStride
;
3703 (const GLushort
*) texImage
->Data
+ row
* rowstride
,
3704 width
* sizeof(GLushort
));
3705 /* check for byte swapping */
3706 if ((texImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR
3707 && type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
) ||
3708 (texImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR_REV
3709 && type
== GL_UNSIGNED_SHORT_8_8_MESA
)) {
3710 if (!ctx
->Pack
.SwapBytes
)
3711 _mesa_swap2((GLushort
*) dest
, width
);
3713 else if (ctx
->Pack
.SwapBytes
) {
3714 _mesa_swap2((GLushort
*) dest
, width
);
3717 #if FEATURE_EXT_texture_sRGB
3718 else if (is_srgb_teximage(texImage
)) {
3719 /* no pixel transfer and no non-linear to linear conversion */
3720 const GLint comps
= texImage
->TexFormat
->TexelBytes
;
3721 const GLint rowstride
= comps
* texImage
->RowStride
;
3723 (const GLubyte
*) texImage
->Data
+ row
* rowstride
,
3724 comps
* width
* sizeof(GLubyte
));
3725 /* FIXME: isn't it necessary to still do component assigning
3726 according to format/type? */
3727 /* FIXME: need to do something else for compressed srgb textures
3728 (currently will return values converted to linear) */
3730 #endif /* FEATURE_EXT_texture_sRGB */
3732 /* general case: convert row to RGBA format */
3733 GLfloat rgba
[MAX_WIDTH
][4];
3735 GLbitfield transferOps
= 0x0;
3737 if (type
== GL_FLOAT
&&
3738 ((ctx
->Color
.ClampReadColor
== GL_TRUE
) ||
3739 (ctx
->Color
.ClampReadColor
== GL_FIXED_ONLY_ARB
&&
3740 texImage
->TexFormat
->DataType
!= GL_FLOAT
)))
3741 transferOps
|= IMAGE_CLAMP_BIT
;
3743 for (col
= 0; col
< width
; col
++) {
3744 (*texImage
->FetchTexelf
)(texImage
, col
, row
, img
, rgba
[col
]);
3745 if (texImage
->TexFormat
->BaseFormat
== GL_ALPHA
) {
3746 rgba
[col
][RCOMP
] = 0.0;
3747 rgba
[col
][GCOMP
] = 0.0;
3748 rgba
[col
][BCOMP
] = 0.0;
3750 else if (texImage
->TexFormat
->BaseFormat
== GL_LUMINANCE
) {
3751 rgba
[col
][GCOMP
] = 0.0;
3752 rgba
[col
][BCOMP
] = 0.0;
3753 rgba
[col
][ACOMP
] = 1.0;
3755 else if (texImage
->TexFormat
->BaseFormat
== GL_LUMINANCE_ALPHA
) {
3756 rgba
[col
][GCOMP
] = 0.0;
3757 rgba
[col
][BCOMP
] = 0.0;
3759 else if (texImage
->TexFormat
->BaseFormat
== GL_INTENSITY
) {
3760 rgba
[col
][GCOMP
] = 0.0;
3761 rgba
[col
][BCOMP
] = 0.0;
3762 rgba
[col
][ACOMP
] = 1.0;
3765 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
,
3767 &ctx
->Pack
, transferOps
/*image xfer ops*/);
3773 if (ctx
->Pack
.BufferObj
->Name
) {
3774 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3775 ctx
->Pack
.BufferObj
);
3782 * This is the software fallback for Driver.GetCompressedTexImage().
3783 * All error checking will have been done before this routine is called.
3786 _mesa_get_compressed_teximage(GLcontext
*ctx
, GLenum target
, GLint level
,
3788 struct gl_texture_object
*texObj
,
3789 struct gl_texture_image
*texImage
)
3793 if (ctx
->Pack
.BufferObj
->Name
) {
3794 /* pack texture image into a PBO */
3796 if ((const GLubyte
*) img
+ texImage
->CompressedSize
>
3797 (const GLubyte
*) ctx
->Pack
.BufferObj
->Size
) {
3798 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3799 "glGetCompressedTexImage(invalid PBO access)");
3802 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3804 ctx
->Pack
.BufferObj
);
3806 /* buffer is already mapped - that's an error */
3807 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3808 "glGetCompressedTexImage(PBO is mapped)");
3811 img
= ADD_POINTERS(buf
, img
);
3818 /* don't use texImage->CompressedSize since that may be padded out */
3819 size
= _mesa_compressed_texture_size(ctx
, texImage
->Width
, texImage
->Height
,
3821 texImage
->TexFormat
->MesaFormat
);
3823 /* just memcpy, no pixelstore or pixel transfer */
3824 _mesa_memcpy(img
, texImage
->Data
, size
);
3826 if (ctx
->Pack
.BufferObj
->Name
) {
3827 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3828 ctx
->Pack
.BufferObj
);