2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 * The GL texture image functions in teximage.c basically just do
32 * error checking and data structure allocation. They in turn call
33 * device driver functions which actually copy/convert/store the user's
36 * However, most device drivers will be able to use the fallback functions
37 * in this file. That is, most drivers will have the following bit of
39 * ctx->Driver.TexImage1D = _mesa_store_teximage1d;
40 * ctx->Driver.TexImage2D = _mesa_store_teximage2d;
41 * ctx->Driver.TexImage3D = _mesa_store_teximage3d;
44 * Texture image processing is actually kind of complicated. We have to do:
45 * Format/type conversions
47 * pixel transfer (scale, bais, lookup, convolution!, etc)
49 * These functions can handle most everything, including processing full
50 * images and sub-images.
55 #include "bufferobj.h"
65 #include "texcompress.h"
66 #include "texformat.h"
79 * Return GL_TRUE if the given image format is one that be converted
80 * to another format by swizzling.
83 can_swizzle(GLenum logicalBaseFormat
)
85 switch (logicalBaseFormat
) {
88 case GL_LUMINANCE_ALPHA
:
122 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
123 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
124 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
125 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
128 static const struct {
131 GLubyte from_rgba
[6];
132 } mappings
[MAX_IDX
] =
142 MAP4(ZERO
, ZERO
, ZERO
, 0),
173 MAP4(0, ZERO
, ZERO
, ONE
),
179 MAP4(ZERO
, 0, ZERO
, ONE
),
185 MAP4(ZERO
, ZERO
, 0, ONE
),
211 * Convert a GL image format enum to an IDX_* value (see above).
214 get_map_idx(GLenum value
)
217 case GL_LUMINANCE
: return IDX_LUMINANCE
;
218 case GL_ALPHA
: return IDX_ALPHA
;
219 case GL_INTENSITY
: return IDX_INTENSITY
;
220 case GL_LUMINANCE_ALPHA
: return IDX_LUMINANCE_ALPHA
;
221 case GL_RGB
: return IDX_RGB
;
222 case GL_RGBA
: return IDX_RGBA
;
223 case GL_RED
: return IDX_RED
;
224 case GL_GREEN
: return IDX_GREEN
;
225 case GL_BLUE
: return IDX_BLUE
;
226 case GL_BGR
: return IDX_BGR
;
227 case GL_BGRA
: return IDX_BGRA
;
228 case GL_ABGR_EXT
: return IDX_ABGR
;
230 _mesa_problem(NULL
, "Unexpected inFormat");
237 * When promoting texture formats (see below) we need to compute the
238 * mapping of dest components back to source components.
239 * This function does that.
240 * \param inFormat the incoming format of the texture
241 * \param outFormat the final texture format
242 * \return map[6] a full 6-component map
245 compute_component_mapping(GLenum inFormat
, GLenum outFormat
,
248 const int inFmt
= get_map_idx(inFormat
);
249 const int outFmt
= get_map_idx(outFormat
);
250 const GLubyte
*in2rgba
= mappings
[inFmt
].to_rgba
;
251 const GLubyte
*rgba2out
= mappings
[outFmt
].from_rgba
;
254 for (i
= 0; i
< 4; i
++)
255 map
[i
] = in2rgba
[rgba2out
[i
]];
261 _mesa_printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
262 inFormat, _mesa_lookup_enum_by_nr(inFormat),
263 outFormat, _mesa_lookup_enum_by_nr(outFormat),
274 #if !FEATURE_convolve
276 _mesa_adjust_image_for_convolution(GLcontext
*ctx
, GLuint dims
,
277 GLsizei
*srcWidth
, GLsizei
*srcHeight
)
285 * Make a temporary (color) texture image with GLfloat components.
286 * Apply all needed pixel unpacking and pixel transfer operations.
287 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
288 * Suppose the user specifies GL_LUMINANCE as the internal texture format
289 * but the graphics hardware doesn't support luminance textures. So, might
290 * use an RGB hardware format instead.
291 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
293 * \param ctx the rendering context
294 * \param dims image dimensions: 1, 2 or 3
295 * \param logicalBaseFormat basic texture derived from the user's
296 * internal texture format value
297 * \param textureBaseFormat the actual basic format of the texture
298 * \param srcWidth source image width
299 * \param srcHeight source image height
300 * \param srcDepth source image depth
301 * \param srcFormat source image format
302 * \param srcType source image type
303 * \param srcAddr source image address
304 * \param srcPacking source image pixel packing
305 * \return resulting image with format = textureBaseFormat and type = GLfloat.
308 make_temp_float_image(GLcontext
*ctx
, GLuint dims
,
309 GLenum logicalBaseFormat
,
310 GLenum textureBaseFormat
,
311 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
312 GLenum srcFormat
, GLenum srcType
,
313 const GLvoid
*srcAddr
,
314 const struct gl_pixelstore_attrib
*srcPacking
)
316 GLuint transferOps
= ctx
->_ImageTransferState
;
319 ASSERT(dims
>= 1 && dims
<= 3);
321 ASSERT(logicalBaseFormat
== GL_RGBA
||
322 logicalBaseFormat
== GL_RGB
||
323 logicalBaseFormat
== GL_LUMINANCE_ALPHA
||
324 logicalBaseFormat
== GL_LUMINANCE
||
325 logicalBaseFormat
== GL_ALPHA
||
326 logicalBaseFormat
== GL_INTENSITY
||
327 logicalBaseFormat
== GL_COLOR_INDEX
||
328 logicalBaseFormat
== GL_DEPTH_COMPONENT
);
330 ASSERT(textureBaseFormat
== GL_RGBA
||
331 textureBaseFormat
== GL_RGB
||
332 textureBaseFormat
== GL_LUMINANCE_ALPHA
||
333 textureBaseFormat
== GL_LUMINANCE
||
334 textureBaseFormat
== GL_ALPHA
||
335 textureBaseFormat
== GL_INTENSITY
||
336 textureBaseFormat
== GL_COLOR_INDEX
||
337 textureBaseFormat
== GL_DEPTH_COMPONENT
);
339 /* conventional color image */
341 if ((dims
== 1 && ctx
->Pixel
.Convolution1DEnabled
) ||
342 (dims
>= 2 && ctx
->Pixel
.Convolution2DEnabled
) ||
343 (dims
>= 2 && ctx
->Pixel
.Separable2DEnabled
)) {
344 /* need image convolution */
345 const GLuint preConvTransferOps
346 = (transferOps
& IMAGE_PRE_CONVOLUTION_BITS
) | IMAGE_CLAMP_BIT
;
347 const GLuint postConvTransferOps
348 = (transferOps
& IMAGE_POST_CONVOLUTION_BITS
) | IMAGE_CLAMP_BIT
;
350 GLint convWidth
, convHeight
;
353 /* pre-convolution image buffer (3D) */
354 tempImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
355 * 4 * sizeof(GLfloat
));
359 /* post-convolution image buffer (2D) */
360 convImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
361 * 4 * sizeof(GLfloat
));
363 _mesa_free(tempImage
);
367 /* loop over 3D image slices */
368 for (img
= 0; img
< srcDepth
; img
++) {
369 GLfloat
*dst
= tempImage
+ img
* (srcWidth
* srcHeight
* 4);
371 /* unpack and do transfer ops up to convolution */
372 for (row
= 0; row
< srcHeight
; row
++) {
373 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
374 srcAddr
, srcWidth
, srcHeight
,
375 srcFormat
, srcType
, img
, row
, 0);
376 _mesa_unpack_color_span_float(ctx
, srcWidth
, GL_RGBA
, dst
,
377 srcFormat
, srcType
, src
,
383 /* size after optional convolution */
384 convWidth
= srcWidth
;
385 convHeight
= srcHeight
;
390 GLfloat
*src
= tempImage
+ img
* (srcWidth
* srcHeight
* 4);
392 ASSERT(ctx
->Pixel
.Convolution1DEnabled
);
393 _mesa_convolve_1d_image(ctx
, &convWidth
, src
, convImage
);
396 if (ctx
->Pixel
.Convolution2DEnabled
) {
397 _mesa_convolve_2d_image(ctx
, &convWidth
, &convHeight
,
401 ASSERT(ctx
->Pixel
.Separable2DEnabled
);
402 _mesa_convolve_sep_image(ctx
, &convWidth
, &convHeight
,
408 /* do post-convolution transfer and pack into tempImage */
410 const GLint logComponents
411 = _mesa_components_in_format(logicalBaseFormat
);
412 const GLfloat
*src
= convImage
;
413 GLfloat
*dst
= tempImage
+ img
* (convWidth
* convHeight
* 4);
414 for (row
= 0; row
< convHeight
; row
++) {
415 _mesa_pack_rgba_span_float(ctx
, convWidth
,
416 (GLfloat (*)[4]) src
,
417 logicalBaseFormat
, GL_FLOAT
,
418 dst
, &ctx
->DefaultPacking
,
419 postConvTransferOps
);
420 src
+= convWidth
* 4;
421 dst
+= convWidth
* logComponents
;
424 } /* loop over 3D image slices */
426 _mesa_free(convImage
);
428 /* might need these below */
429 srcWidth
= convWidth
;
430 srcHeight
= convHeight
;
434 const GLint components
= _mesa_components_in_format(logicalBaseFormat
);
435 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
436 srcWidth
, srcFormat
, srcType
);
440 tempImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
441 * components
* sizeof(GLfloat
));
446 for (img
= 0; img
< srcDepth
; img
++) {
448 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
452 for (row
= 0; row
< srcHeight
; row
++) {
453 _mesa_unpack_color_span_float(ctx
, srcWidth
, logicalBaseFormat
,
454 dst
, srcFormat
, srcType
, src
,
455 srcPacking
, transferOps
);
456 dst
+= srcWidth
* components
;
462 if (logicalBaseFormat
!= textureBaseFormat
) {
464 GLint texComponents
= _mesa_components_in_format(textureBaseFormat
);
465 GLint logComponents
= _mesa_components_in_format(logicalBaseFormat
);
470 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
471 ASSERT(textureBaseFormat
== GL_RGB
|| textureBaseFormat
== GL_RGBA
||
472 textureBaseFormat
== GL_LUMINANCE_ALPHA
);
474 /* The actual texture format should have at least as many components
475 * as the logical texture format.
477 ASSERT(texComponents
>= logComponents
);
479 newImage
= (GLfloat
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
480 * texComponents
* sizeof(GLfloat
));
482 _mesa_free(tempImage
);
486 compute_component_mapping(logicalBaseFormat
, textureBaseFormat
, map
);
488 n
= srcWidth
* srcHeight
* srcDepth
;
489 for (i
= 0; i
< n
; i
++) {
491 for (k
= 0; k
< texComponents
; k
++) {
494 newImage
[i
* texComponents
+ k
] = 0.0F
;
496 newImage
[i
* texComponents
+ k
] = 1.0F
;
498 newImage
[i
* texComponents
+ k
] = tempImage
[i
* logComponents
+ j
];
502 _mesa_free(tempImage
);
503 tempImage
= newImage
;
511 * Make a temporary (color) texture image with GLchan components.
512 * Apply all needed pixel unpacking and pixel transfer operations.
513 * Note that there are both logicalBaseFormat and textureBaseFormat parameters.
514 * Suppose the user specifies GL_LUMINANCE as the internal texture format
515 * but the graphics hardware doesn't support luminance textures. So, might
516 * use an RGB hardware format instead.
517 * If logicalBaseFormat != textureBaseFormat we have some extra work to do.
519 * \param ctx the rendering context
520 * \param dims image dimensions: 1, 2 or 3
521 * \param logicalBaseFormat basic texture derived from the user's
522 * internal texture format value
523 * \param textureBaseFormat the actual basic format of the texture
524 * \param srcWidth source image width
525 * \param srcHeight source image height
526 * \param srcDepth source image depth
527 * \param srcFormat source image format
528 * \param srcType source image type
529 * \param srcAddr source image address
530 * \param srcPacking source image pixel packing
531 * \return resulting image with format = textureBaseFormat and type = GLchan.
534 _mesa_make_temp_chan_image(GLcontext
*ctx
, GLuint dims
,
535 GLenum logicalBaseFormat
,
536 GLenum textureBaseFormat
,
537 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
538 GLenum srcFormat
, GLenum srcType
,
539 const GLvoid
*srcAddr
,
540 const struct gl_pixelstore_attrib
*srcPacking
)
542 GLuint transferOps
= ctx
->_ImageTransferState
;
543 const GLint components
= _mesa_components_in_format(logicalBaseFormat
);
544 GLboolean freeSrcImage
= GL_FALSE
;
546 GLchan
*tempImage
, *dst
;
548 ASSERT(dims
>= 1 && dims
<= 3);
550 ASSERT(logicalBaseFormat
== GL_RGBA
||
551 logicalBaseFormat
== GL_RGB
||
552 logicalBaseFormat
== GL_LUMINANCE_ALPHA
||
553 logicalBaseFormat
== GL_LUMINANCE
||
554 logicalBaseFormat
== GL_ALPHA
||
555 logicalBaseFormat
== GL_INTENSITY
);
557 ASSERT(textureBaseFormat
== GL_RGBA
||
558 textureBaseFormat
== GL_RGB
||
559 textureBaseFormat
== GL_LUMINANCE_ALPHA
||
560 textureBaseFormat
== GL_LUMINANCE
||
561 textureBaseFormat
== GL_ALPHA
||
562 textureBaseFormat
== GL_INTENSITY
);
565 if ((dims
== 1 && ctx
->Pixel
.Convolution1DEnabled
) ||
566 (dims
>= 2 && ctx
->Pixel
.Convolution2DEnabled
) ||
567 (dims
>= 2 && ctx
->Pixel
.Separable2DEnabled
)) {
568 /* get convolved image */
569 GLfloat
*convImage
= make_temp_float_image(ctx
, dims
,
572 srcWidth
, srcHeight
, srcDepth
,
574 srcAddr
, srcPacking
);
577 /* the convolved image is our new source image */
579 srcFormat
= logicalBaseFormat
;
581 srcPacking
= &ctx
->DefaultPacking
;
582 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
584 freeSrcImage
= GL_TRUE
;
588 /* unpack and transfer the source image */
589 tempImage
= (GLchan
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
590 * components
* sizeof(GLchan
));
595 for (img
= 0; img
< srcDepth
; img
++) {
596 const GLint srcStride
= _mesa_image_row_stride(srcPacking
,
600 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
604 for (row
= 0; row
< srcHeight
; row
++) {
605 _mesa_unpack_color_span_chan(ctx
, srcWidth
, logicalBaseFormat
, dst
,
606 srcFormat
, srcType
, src
, srcPacking
,
608 dst
+= srcWidth
* components
;
613 /* If we made a temporary image for convolution, free it here */
615 _mesa_free((void *) srcAddr
);
618 if (logicalBaseFormat
!= textureBaseFormat
) {
619 /* one more conversion step */
620 GLint texComponents
= _mesa_components_in_format(textureBaseFormat
);
621 GLint logComponents
= _mesa_components_in_format(logicalBaseFormat
);
626 /* we only promote up to RGB, RGBA and LUMINANCE_ALPHA formats for now */
627 ASSERT(textureBaseFormat
== GL_RGB
|| textureBaseFormat
== GL_RGBA
||
628 textureBaseFormat
== GL_LUMINANCE_ALPHA
);
630 /* The actual texture format should have at least as many components
631 * as the logical texture format.
633 ASSERT(texComponents
>= logComponents
);
635 newImage
= (GLchan
*) _mesa_malloc(srcWidth
* srcHeight
* srcDepth
636 * texComponents
* sizeof(GLchan
));
638 _mesa_free(tempImage
);
642 compute_component_mapping(logicalBaseFormat
, textureBaseFormat
, map
);
644 n
= srcWidth
* srcHeight
* srcDepth
;
645 for (i
= 0; i
< n
; i
++) {
647 for (k
= 0; k
< texComponents
; k
++) {
650 newImage
[i
* texComponents
+ k
] = 0;
652 newImage
[i
* texComponents
+ k
] = CHAN_MAX
;
654 newImage
[i
* texComponents
+ k
] = tempImage
[i
* logComponents
+ j
];
658 _mesa_free(tempImage
);
659 tempImage
= newImage
;
667 * Copy GLubyte pixels from <src> to <dst> with swizzling.
668 * \param dst destination pixels
669 * \param dstComponents number of color components in destination pixels
670 * \param src source pixels
671 * \param srcComponents number of color components in source pixels
672 * \param map the swizzle mapping. map[X] says where to find the X component
673 * in the source image's pixels. For example, if the source image
674 * is GL_BGRA and X = red, map[0] yields 2.
675 * \param count number of pixels to copy/swizzle.
678 swizzle_copy(GLubyte
*dst
, GLuint dstComponents
, const GLubyte
*src
,
679 GLuint srcComponents
, const GLubyte
*map
, GLuint count
)
681 #define SWZ_CPY(dst, src, count, dstComps, srcComps) \
684 for (i = 0; i < count; i++) { \
686 if (srcComps == 4) { \
687 COPY_4UBV(tmp, src); \
690 for (j = 0; j < srcComps; j++) { \
695 for (j = 0; j < dstComps; j++) { \
696 dst[j] = tmp[map[j]]; \
707 ASSERT(srcComponents
<= 4);
708 ASSERT(dstComponents
<= 4);
710 switch (dstComponents
) {
712 switch (srcComponents
) {
714 SWZ_CPY(dst
, src
, count
, 4, 4);
717 SWZ_CPY(dst
, src
, count
, 4, 3);
720 SWZ_CPY(dst
, src
, count
, 4, 2);
723 SWZ_CPY(dst
, src
, count
, 4, 1);
730 switch (srcComponents
) {
732 SWZ_CPY(dst
, src
, count
, 3, 4);
735 SWZ_CPY(dst
, src
, count
, 3, 3);
738 SWZ_CPY(dst
, src
, count
, 3, 2);
741 SWZ_CPY(dst
, src
, count
, 3, 1);
748 switch (srcComponents
) {
750 SWZ_CPY(dst
, src
, count
, 2, 4);
753 SWZ_CPY(dst
, src
, count
, 2, 3);
756 SWZ_CPY(dst
, src
, count
, 2, 2);
759 SWZ_CPY(dst
, src
, count
, 2, 1);
766 switch (srcComponents
) {
768 SWZ_CPY(dst
, src
, count
, 1, 4);
771 SWZ_CPY(dst
, src
, count
, 1, 3);
774 SWZ_CPY(dst
, src
, count
, 1, 2);
777 SWZ_CPY(dst
, src
, count
, 1, 1);
791 static const GLubyte map_identity
[6] = { 0, 1, 2, 3, ZERO
, ONE
};
792 static const GLubyte map_3210
[6] = { 3, 2, 1, 0, ZERO
, ONE
};
794 /* Deal with the _REV input types:
796 static const GLubyte
*
797 type_mapping( GLenum srcType
)
800 case GL_UNSIGNED_BYTE
:
802 case GL_UNSIGNED_INT_8_8_8_8
:
803 return _mesa_little_endian() ? map_3210
: map_identity
;
804 case GL_UNSIGNED_INT_8_8_8_8_REV
:
805 return _mesa_little_endian() ? map_identity
: map_3210
;
811 /* Mapping required if input type is
813 static const GLubyte
*
814 byteswap_mapping( GLboolean swapBytes
,
821 case GL_UNSIGNED_BYTE
:
823 case GL_UNSIGNED_INT_8_8_8_8
:
824 case GL_UNSIGNED_INT_8_8_8_8_REV
:
834 * Transfer a GLubyte texture image with component swizzling.
837 _mesa_swizzle_ubyte_image(GLcontext
*ctx
,
842 GLenum baseInternalFormat
,
844 const GLubyte
*rgba2dst
,
845 GLuint dstComponents
,
848 GLint dstXoffset
, GLint dstYoffset
, GLint dstZoffset
,
850 const GLuint
*dstImageOffsets
,
852 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
853 const GLvoid
*srcAddr
,
854 const struct gl_pixelstore_attrib
*srcPacking
)
856 GLint srcComponents
= _mesa_components_in_format(srcFormat
);
857 const GLubyte
*srctype2ubyte
, *swap
;
858 GLubyte map
[4], src2base
[6], base2rgba
[6];
860 const GLint srcRowStride
=
861 _mesa_image_row_stride(srcPacking
, srcWidth
,
862 srcFormat
, GL_UNSIGNED_BYTE
);
863 const GLint srcImageStride
864 = _mesa_image_image_stride(srcPacking
, srcWidth
, srcHeight
, srcFormat
,
866 const GLubyte
*srcImage
867 = (const GLubyte
*) _mesa_image_address(dimensions
, srcPacking
, srcAddr
,
868 srcWidth
, srcHeight
, srcFormat
,
869 GL_UNSIGNED_BYTE
, 0, 0, 0);
873 /* Translate from src->baseInternal->GL_RGBA->dst. This will
874 * correctly deal with RGBA->RGB->RGBA conversions where the final
875 * A value must be 0xff regardless of the incoming alpha values.
877 compute_component_mapping(srcFormat
, baseInternalFormat
, src2base
);
878 compute_component_mapping(baseInternalFormat
, GL_RGBA
, base2rgba
);
879 swap
= byteswap_mapping(srcPacking
->SwapBytes
, srcType
);
880 srctype2ubyte
= type_mapping(srcType
);
883 for (i
= 0; i
< 4; i
++)
884 map
[i
] = srctype2ubyte
[swap
[src2base
[base2rgba
[rgba2dst
[i
]]]]];
886 /* _mesa_printf("map %d %d %d %d\n", map[0], map[1], map[2], map[3]); */
888 if (srcComponents
== dstComponents
&&
889 srcRowStride
== dstRowStride
&&
890 srcRowStride
== srcWidth
* srcComponents
&&
892 /* 1 and 2D images only */
893 GLubyte
*dstImage
= (GLubyte
*) dstAddr
894 + dstYoffset
* dstRowStride
895 + dstXoffset
* dstComponents
;
896 swizzle_copy(dstImage
, dstComponents
, srcImage
, srcComponents
, map
,
897 srcWidth
* srcHeight
);
901 for (img
= 0; img
< srcDepth
; img
++) {
902 const GLubyte
*srcRow
= srcImage
;
903 GLubyte
*dstRow
= (GLubyte
*) dstAddr
904 + dstImageOffsets
[dstZoffset
+ img
] * dstComponents
905 + dstYoffset
* dstRowStride
906 + dstXoffset
* dstComponents
;
907 for (row
= 0; row
< srcHeight
; row
++) {
908 swizzle_copy(dstRow
, dstComponents
, srcRow
, srcComponents
, map
, srcWidth
);
909 dstRow
+= dstRowStride
;
910 srcRow
+= srcRowStride
;
912 srcImage
+= srcImageStride
;
919 * Teximage storage routine for when a simple memcpy will do.
920 * No pixel transfer operations or special texel encodings allowed.
921 * 1D, 2D and 3D images supported.
924 memcpy_texture(GLcontext
*ctx
,
926 const struct gl_texture_format
*dstFormat
,
928 GLint dstXoffset
, GLint dstYoffset
, GLint dstZoffset
,
930 const GLuint
*dstImageOffsets
,
931 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
932 GLenum srcFormat
, GLenum srcType
,
933 const GLvoid
*srcAddr
,
934 const struct gl_pixelstore_attrib
*srcPacking
)
936 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
, srcWidth
,
938 const GLint srcImageStride
= _mesa_image_image_stride(srcPacking
,
939 srcWidth
, srcHeight
, srcFormat
, srcType
);
940 const GLubyte
*srcImage
= (const GLubyte
*) _mesa_image_address(dimensions
,
941 srcPacking
, srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, 0, 0, 0);
942 const GLint bytesPerRow
= srcWidth
* dstFormat
->TexelBytes
;
945 /* XXX update/re-enable for dstImageOffsets array */
946 const GLint bytesPerImage
= srcHeight
* bytesPerRow
;
947 const GLint bytesPerTexture
= srcDepth
* bytesPerImage
;
948 GLubyte
*dstImage
= (GLubyte
*) dstAddr
949 + dstZoffset
* dstImageStride
950 + dstYoffset
* dstRowStride
951 + dstXoffset
* dstFormat
->TexelBytes
;
953 if (dstRowStride
== srcRowStride
&&
954 dstRowStride
== bytesPerRow
&&
955 ((dstImageStride
== srcImageStride
&&
956 dstImageStride
== bytesPerImage
) ||
959 ctx
->Driver
.TextureMemCpy(dstImage
, srcImage
, bytesPerTexture
);
964 for (img
= 0; img
< srcDepth
; img
++) {
965 const GLubyte
*srcRow
= srcImage
;
966 GLubyte
*dstRow
= dstImage
;
967 for (row
= 0; row
< srcHeight
; row
++) {
968 ctx
->Driver
.TextureMemCpy(dstRow
, srcRow
, bytesPerRow
);
969 dstRow
+= dstRowStride
;
970 srcRow
+= srcRowStride
;
972 srcImage
+= srcImageStride
;
973 dstImage
+= dstImageStride
;
979 for (img
= 0; img
< srcDepth
; img
++) {
980 const GLubyte
*srcRow
= srcImage
;
981 GLubyte
*dstRow
= (GLubyte
*) dstAddr
982 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
983 + dstYoffset
* dstRowStride
984 + dstXoffset
* dstFormat
->TexelBytes
;
985 for (row
= 0; row
< srcHeight
; row
++) {
986 ctx
->Driver
.TextureMemCpy(dstRow
, srcRow
, bytesPerRow
);
987 dstRow
+= dstRowStride
;
988 srcRow
+= srcRowStride
;
990 srcImage
+= srcImageStride
;
997 * Store an image in any of the formats:
998 * _mesa_texformat_rgba
999 * _mesa_texformat_rgb
1000 * _mesa_texformat_alpha
1001 * _mesa_texformat_luminance
1002 * _mesa_texformat_luminance_alpha
1003 * _mesa_texformat_intensity
1007 _mesa_texstore_rgba(TEXSTORE_PARAMS
)
1009 const GLint components
= _mesa_components_in_format(baseInternalFormat
);
1011 ASSERT(dstFormat
== &_mesa_texformat_rgba
||
1012 dstFormat
== &_mesa_texformat_rgb
||
1013 dstFormat
== &_mesa_texformat_alpha
||
1014 dstFormat
== &_mesa_texformat_luminance
||
1015 dstFormat
== &_mesa_texformat_luminance_alpha
||
1016 dstFormat
== &_mesa_texformat_intensity
);
1017 ASSERT(baseInternalFormat
== GL_RGBA
||
1018 baseInternalFormat
== GL_RGB
||
1019 baseInternalFormat
== GL_ALPHA
||
1020 baseInternalFormat
== GL_LUMINANCE
||
1021 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
1022 baseInternalFormat
== GL_INTENSITY
);
1023 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLchan
));
1025 if (!ctx
->_ImageTransferState
&&
1026 !srcPacking
->SwapBytes
&&
1027 baseInternalFormat
== srcFormat
&&
1028 srcType
== CHAN_TYPE
) {
1029 /* simple memcpy path */
1030 memcpy_texture(ctx
, dims
,
1031 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1034 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1035 srcAddr
, srcPacking
);
1037 else if (!ctx
->_ImageTransferState
&&
1038 !srcPacking
->SwapBytes
&&
1039 dstFormat
== &_mesa_texformat_rgb
&&
1040 srcFormat
== GL_RGBA
&&
1041 srcType
== CHAN_TYPE
) {
1042 /* extract RGB from RGBA */
1043 GLint img
, row
, col
;
1044 for (img
= 0; img
< srcDepth
; img
++) {
1045 GLchan
*dstImage
= (GLchan
*)
1046 ((GLubyte
*) dstAddr
1047 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1048 + dstYoffset
* dstRowStride
1049 + dstXoffset
* dstFormat
->TexelBytes
);
1051 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1052 srcWidth
, srcFormat
, srcType
);
1053 GLchan
*srcRow
= (GLchan
*) _mesa_image_address(dims
, srcPacking
,
1054 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1055 GLchan
*dstRow
= dstImage
;
1056 for (row
= 0; row
< srcHeight
; row
++) {
1057 for (col
= 0; col
< srcWidth
; col
++) {
1058 dstRow
[col
* 3 + RCOMP
] = srcRow
[col
* 4 + RCOMP
];
1059 dstRow
[col
* 3 + GCOMP
] = srcRow
[col
* 4 + GCOMP
];
1060 dstRow
[col
* 3 + BCOMP
] = srcRow
[col
* 4 + BCOMP
];
1062 dstRow
+= dstRowStride
/ sizeof(GLchan
);
1063 srcRow
= (GLchan
*) ((GLubyte
*) srcRow
+ srcRowStride
);
1067 else if (!ctx
->_ImageTransferState
&&
1068 CHAN_TYPE
== GL_UNSIGNED_BYTE
&&
1069 (srcType
== GL_UNSIGNED_BYTE
||
1070 srcType
== GL_UNSIGNED_INT_8_8_8_8
||
1071 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) &&
1072 can_swizzle(baseInternalFormat
) &&
1073 can_swizzle(srcFormat
)) {
1075 const GLubyte
*dstmap
;
1078 /* dstmap - how to swizzle from RGBA to dst format:
1080 if (dstFormat
== &_mesa_texformat_rgba
) {
1081 dstmap
= mappings
[IDX_RGBA
].from_rgba
;
1084 else if (dstFormat
== &_mesa_texformat_rgb
) {
1085 dstmap
= mappings
[IDX_RGB
].from_rgba
;
1088 else if (dstFormat
== &_mesa_texformat_alpha
) {
1089 dstmap
= mappings
[IDX_ALPHA
].from_rgba
;
1092 else if (dstFormat
== &_mesa_texformat_luminance
) {
1093 dstmap
= mappings
[IDX_LUMINANCE
].from_rgba
;
1096 else if (dstFormat
== &_mesa_texformat_luminance_alpha
) {
1097 dstmap
= mappings
[IDX_LUMINANCE_ALPHA
].from_rgba
;
1100 else if (dstFormat
== &_mesa_texformat_intensity
) {
1101 dstmap
= mappings
[IDX_INTENSITY
].from_rgba
;
1105 _mesa_problem(ctx
, "Unexpected dstFormat in _mesa_texstore_rgba");
1109 _mesa_swizzle_ubyte_image(ctx
, dims
,
1114 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1115 dstRowStride
, dstImageOffsets
,
1116 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1121 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1123 dstFormat
->BaseFormat
,
1124 srcWidth
, srcHeight
, srcDepth
,
1125 srcFormat
, srcType
, srcAddr
,
1127 const GLchan
*src
= tempImage
;
1132 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1133 bytesPerRow
= srcWidth
* components
* sizeof(GLchan
);
1134 for (img
= 0; img
< srcDepth
; img
++) {
1135 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1136 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1137 + dstYoffset
* dstRowStride
1138 + dstXoffset
* dstFormat
->TexelBytes
;
1139 for (row
= 0; row
< srcHeight
; row
++) {
1140 _mesa_memcpy(dstRow
, src
, bytesPerRow
);
1141 dstRow
+= dstRowStride
;
1142 src
+= srcWidth
* components
;
1146 _mesa_free((void *) tempImage
);
1153 * Store a 32-bit integer depth component texture image.
1156 _mesa_texstore_z32(TEXSTORE_PARAMS
)
1158 const GLuint depthScale
= 0xffffffff;
1160 ASSERT(dstFormat
== &_mesa_texformat_z32
);
1161 ASSERT(dstFormat
->TexelBytes
== sizeof(GLuint
));
1163 if (ctx
->Pixel
.DepthScale
== 1.0f
&&
1164 ctx
->Pixel
.DepthBias
== 0.0f
&&
1165 !srcPacking
->SwapBytes
&&
1166 baseInternalFormat
== GL_DEPTH_COMPONENT
&&
1167 srcFormat
== GL_DEPTH_COMPONENT
&&
1168 srcType
== GL_UNSIGNED_INT
) {
1169 /* simple memcpy path */
1170 memcpy_texture(ctx
, dims
,
1171 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1174 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1175 srcAddr
, srcPacking
);
1180 for (img
= 0; img
< srcDepth
; img
++) {
1181 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1182 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1183 + dstYoffset
* dstRowStride
1184 + dstXoffset
* dstFormat
->TexelBytes
;
1185 for (row
= 0; row
< srcHeight
; row
++) {
1186 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
1187 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
1188 _mesa_unpack_depth_span(ctx
, srcWidth
,
1189 GL_UNSIGNED_INT
, (GLuint
*) dstRow
,
1190 depthScale
, srcType
, src
, srcPacking
);
1191 dstRow
+= dstRowStride
;
1201 * Store a 16-bit integer depth component texture image.
1204 _mesa_texstore_z16(TEXSTORE_PARAMS
)
1206 const GLuint depthScale
= 0xffff;
1208 ASSERT(dstFormat
== &_mesa_texformat_z16
);
1209 ASSERT(dstFormat
->TexelBytes
== sizeof(GLushort
));
1211 if (ctx
->Pixel
.DepthScale
== 1.0f
&&
1212 ctx
->Pixel
.DepthBias
== 0.0f
&&
1213 !srcPacking
->SwapBytes
&&
1214 baseInternalFormat
== GL_DEPTH_COMPONENT
&&
1215 srcFormat
== GL_DEPTH_COMPONENT
&&
1216 srcType
== GL_UNSIGNED_SHORT
) {
1217 /* simple memcpy path */
1218 memcpy_texture(ctx
, dims
,
1219 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1222 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1223 srcAddr
, srcPacking
);
1228 for (img
= 0; img
< srcDepth
; img
++) {
1229 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1230 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1231 + dstYoffset
* dstRowStride
1232 + dstXoffset
* dstFormat
->TexelBytes
;
1233 for (row
= 0; row
< srcHeight
; row
++) {
1234 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
1235 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
1236 GLushort
*dst16
= (GLushort
*) dstRow
;
1237 _mesa_unpack_depth_span(ctx
, srcWidth
,
1238 GL_UNSIGNED_SHORT
, dst16
, depthScale
,
1239 srcType
, src
, srcPacking
);
1240 dstRow
+= dstRowStride
;
1249 * Store an rgb565 or rgb565_rev texture image.
1252 _mesa_texstore_rgb565(TEXSTORE_PARAMS
)
1254 ASSERT(dstFormat
== &_mesa_texformat_rgb565
||
1255 dstFormat
== &_mesa_texformat_rgb565_rev
);
1256 ASSERT(dstFormat
->TexelBytes
== 2);
1258 if (!ctx
->_ImageTransferState
&&
1259 !srcPacking
->SwapBytes
&&
1260 dstFormat
== &_mesa_texformat_rgb565
&&
1261 baseInternalFormat
== GL_RGB
&&
1262 srcFormat
== GL_RGB
&&
1263 srcType
== GL_UNSIGNED_SHORT_5_6_5
) {
1264 /* simple memcpy path */
1265 memcpy_texture(ctx
, dims
,
1266 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1269 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1270 srcAddr
, srcPacking
);
1272 else if (!ctx
->_ImageTransferState
&&
1273 !srcPacking
->SwapBytes
&&
1274 baseInternalFormat
== GL_RGB
&&
1275 srcFormat
== GL_RGB
&&
1276 srcType
== GL_UNSIGNED_BYTE
&&
1278 /* do optimized tex store */
1279 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
, srcWidth
,
1280 srcFormat
, srcType
);
1281 const GLubyte
*src
= (const GLubyte
*)
1282 _mesa_image_address(dims
, srcPacking
, srcAddr
, srcWidth
, srcHeight
,
1283 srcFormat
, srcType
, 0, 0, 0);
1284 GLubyte
*dst
= (GLubyte
*) dstAddr
1285 + dstYoffset
* dstRowStride
1286 + dstXoffset
* dstFormat
->TexelBytes
;
1288 for (row
= 0; row
< srcHeight
; row
++) {
1289 const GLubyte
*srcUB
= (const GLubyte
*) src
;
1290 GLushort
*dstUS
= (GLushort
*) dst
;
1291 /* check for byteswapped format */
1292 if (dstFormat
== &_mesa_texformat_rgb565
) {
1293 for (col
= 0; col
< srcWidth
; col
++) {
1294 dstUS
[col
] = PACK_COLOR_565( srcUB
[0], srcUB
[1], srcUB
[2] );
1299 for (col
= 0; col
< srcWidth
; col
++) {
1300 dstUS
[col
] = PACK_COLOR_565_REV( srcUB
[0], srcUB
[1], srcUB
[2] );
1304 dst
+= dstRowStride
;
1305 src
+= srcRowStride
;
1310 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1312 dstFormat
->BaseFormat
,
1313 srcWidth
, srcHeight
, srcDepth
,
1314 srcFormat
, srcType
, srcAddr
,
1316 const GLchan
*src
= tempImage
;
1317 GLint img
, row
, col
;
1320 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1321 for (img
= 0; img
< srcDepth
; img
++) {
1322 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1323 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1324 + dstYoffset
* dstRowStride
1325 + dstXoffset
* dstFormat
->TexelBytes
;
1326 for (row
= 0; row
< srcHeight
; row
++) {
1327 GLushort
*dstUS
= (GLushort
*) dstRow
;
1328 /* check for byteswapped format */
1329 if (dstFormat
== &_mesa_texformat_rgb565
) {
1330 for (col
= 0; col
< srcWidth
; col
++) {
1331 dstUS
[col
] = PACK_COLOR_565( CHAN_TO_UBYTE(src
[RCOMP
]),
1332 CHAN_TO_UBYTE(src
[GCOMP
]),
1333 CHAN_TO_UBYTE(src
[BCOMP
]) );
1338 for (col
= 0; col
< srcWidth
; col
++) {
1339 dstUS
[col
] = PACK_COLOR_565_REV( CHAN_TO_UBYTE(src
[RCOMP
]),
1340 CHAN_TO_UBYTE(src
[GCOMP
]),
1341 CHAN_TO_UBYTE(src
[BCOMP
]) );
1345 dstRow
+= dstRowStride
;
1348 _mesa_free((void *) tempImage
);
1355 * Store a texture in MESA_FORMAT_RGBA8888 or MESA_FORMAT_RGBA8888_REV.
1358 _mesa_texstore_rgba8888(TEXSTORE_PARAMS
)
1360 const GLboolean littleEndian
= _mesa_little_endian();
1362 ASSERT(dstFormat
== &_mesa_texformat_rgba8888
||
1363 dstFormat
== &_mesa_texformat_rgba8888_rev
);
1364 ASSERT(dstFormat
->TexelBytes
== 4);
1366 if (!ctx
->_ImageTransferState
&&
1367 !srcPacking
->SwapBytes
&&
1368 dstFormat
== &_mesa_texformat_rgba8888
&&
1369 baseInternalFormat
== GL_RGBA
&&
1370 ((srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_INT_8_8_8_8
) ||
1371 (srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_BYTE
&& !littleEndian
) ||
1372 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
1373 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_BYTE
&& littleEndian
))) {
1374 /* simple memcpy path */
1375 memcpy_texture(ctx
, dims
,
1376 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1379 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1380 srcAddr
, srcPacking
);
1382 else if (!ctx
->_ImageTransferState
&&
1383 !srcPacking
->SwapBytes
&&
1384 dstFormat
== &_mesa_texformat_rgba8888_rev
&&
1385 baseInternalFormat
== GL_RGBA
&&
1386 ((srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) ||
1387 (srcFormat
== GL_RGBA
&& srcType
== GL_UNSIGNED_BYTE
&& littleEndian
) ||
1388 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_INT_8_8_8_8
) ||
1389 (srcFormat
== GL_ABGR_EXT
&& srcType
== GL_UNSIGNED_BYTE
&& !littleEndian
))) {
1390 /* simple memcpy path */
1391 memcpy_texture(ctx
, dims
,
1392 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1395 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1396 srcAddr
, srcPacking
);
1398 else if (!ctx
->_ImageTransferState
&&
1399 (srcType
== GL_UNSIGNED_BYTE
||
1400 srcType
== GL_UNSIGNED_INT_8_8_8_8
||
1401 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) &&
1402 can_swizzle(baseInternalFormat
) &&
1403 can_swizzle(srcFormat
)) {
1407 /* dstmap - how to swizzle from RGBA to dst format:
1409 if ((littleEndian
&& dstFormat
== &_mesa_texformat_rgba8888
) ||
1410 (!littleEndian
&& dstFormat
== &_mesa_texformat_rgba8888_rev
)) {
1423 _mesa_swizzle_ubyte_image(ctx
, dims
,
1428 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1429 dstRowStride
, dstImageOffsets
,
1430 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1435 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1437 dstFormat
->BaseFormat
,
1438 srcWidth
, srcHeight
, srcDepth
,
1439 srcFormat
, srcType
, srcAddr
,
1441 const GLchan
*src
= tempImage
;
1442 GLint img
, row
, col
;
1445 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1446 for (img
= 0; img
< srcDepth
; img
++) {
1447 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1448 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1449 + dstYoffset
* dstRowStride
1450 + dstXoffset
* dstFormat
->TexelBytes
;
1451 for (row
= 0; row
< srcHeight
; row
++) {
1452 GLuint
*dstUI
= (GLuint
*) dstRow
;
1453 if (dstFormat
== &_mesa_texformat_rgba8888
) {
1454 for (col
= 0; col
< srcWidth
; col
++) {
1455 dstUI
[col
] = PACK_COLOR_8888( CHAN_TO_UBYTE(src
[RCOMP
]),
1456 CHAN_TO_UBYTE(src
[GCOMP
]),
1457 CHAN_TO_UBYTE(src
[BCOMP
]),
1458 CHAN_TO_UBYTE(src
[ACOMP
]) );
1463 for (col
= 0; col
< srcWidth
; col
++) {
1464 dstUI
[col
] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src
[RCOMP
]),
1465 CHAN_TO_UBYTE(src
[GCOMP
]),
1466 CHAN_TO_UBYTE(src
[BCOMP
]),
1467 CHAN_TO_UBYTE(src
[ACOMP
]) );
1471 dstRow
+= dstRowStride
;
1474 _mesa_free((void *) tempImage
);
1481 _mesa_texstore_argb8888(TEXSTORE_PARAMS
)
1483 const GLboolean littleEndian
= _mesa_little_endian();
1485 ASSERT(dstFormat
== &_mesa_texformat_argb8888
||
1486 dstFormat
== &_mesa_texformat_argb8888_rev
);
1487 ASSERT(dstFormat
->TexelBytes
== 4);
1489 if (!ctx
->_ImageTransferState
&&
1490 !srcPacking
->SwapBytes
&&
1491 dstFormat
== &_mesa_texformat_argb8888
&&
1492 baseInternalFormat
== GL_RGBA
&&
1493 srcFormat
== GL_BGRA
&&
1494 ((srcType
== GL_UNSIGNED_BYTE
&& littleEndian
) ||
1495 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
)) {
1496 /* simple memcpy path (little endian) */
1497 memcpy_texture(ctx
, dims
,
1498 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1501 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1502 srcAddr
, srcPacking
);
1504 else if (!ctx
->_ImageTransferState
&&
1505 !srcPacking
->SwapBytes
&&
1506 dstFormat
== &_mesa_texformat_argb8888_rev
&&
1507 baseInternalFormat
== GL_RGBA
&&
1508 srcFormat
== GL_BGRA
&&
1509 ((srcType
== GL_UNSIGNED_BYTE
&& !littleEndian
) ||
1510 srcType
== GL_UNSIGNED_INT_8_8_8_8
)) {
1511 /* simple memcpy path (big endian) */
1512 memcpy_texture(ctx
, dims
,
1513 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1516 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1517 srcAddr
, srcPacking
);
1519 else if (!ctx
->_ImageTransferState
&&
1520 !srcPacking
->SwapBytes
&&
1521 dstFormat
== &_mesa_texformat_argb8888
&&
1522 srcFormat
== GL_RGB
&&
1523 (baseInternalFormat
== GL_RGBA
||
1524 baseInternalFormat
== GL_RGB
) &&
1525 srcType
== GL_UNSIGNED_BYTE
) {
1527 for (img
= 0; img
< srcDepth
; img
++) {
1528 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1529 srcWidth
, srcFormat
, srcType
);
1530 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1531 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1532 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1533 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1534 + dstYoffset
* dstRowStride
1535 + dstXoffset
* dstFormat
->TexelBytes
;
1536 for (row
= 0; row
< srcHeight
; row
++) {
1537 GLuint
*d4
= (GLuint
*) dstRow
;
1538 for (col
= 0; col
< srcWidth
; col
++) {
1539 d4
[col
] = PACK_COLOR_8888(0xff,
1540 srcRow
[col
* 3 + RCOMP
],
1541 srcRow
[col
* 3 + GCOMP
],
1542 srcRow
[col
* 3 + BCOMP
]);
1544 dstRow
+= dstRowStride
;
1545 srcRow
+= srcRowStride
;
1549 else if (!ctx
->_ImageTransferState
&&
1550 !srcPacking
->SwapBytes
&&
1551 dstFormat
== &_mesa_texformat_argb8888
&&
1552 srcFormat
== GL_RGBA
&&
1553 baseInternalFormat
== GL_RGBA
&&
1554 srcType
== GL_UNSIGNED_BYTE
) {
1555 /* same as above case, but src data has alpha too */
1556 GLint img
, row
, col
;
1557 /* For some reason, streaming copies to write-combined regions
1558 * are extremely sensitive to the characteristics of how the
1559 * source data is retrieved. By reordering the source reads to
1560 * be in-order, the speed of this operation increases by half.
1561 * Strangely the same isn't required for the RGB path, above.
1563 for (img
= 0; img
< srcDepth
; img
++) {
1564 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1565 srcWidth
, srcFormat
, srcType
);
1566 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1567 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1568 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1569 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1570 + dstYoffset
* dstRowStride
1571 + dstXoffset
* dstFormat
->TexelBytes
;
1572 for (row
= 0; row
< srcHeight
; row
++) {
1573 GLuint
*d4
= (GLuint
*) dstRow
;
1574 for (col
= 0; col
< srcWidth
; col
++) {
1575 d4
[col
] = PACK_COLOR_8888(srcRow
[col
* 4 + ACOMP
],
1576 srcRow
[col
* 4 + RCOMP
],
1577 srcRow
[col
* 4 + GCOMP
],
1578 srcRow
[col
* 4 + BCOMP
]);
1580 dstRow
+= dstRowStride
;
1581 srcRow
+= srcRowStride
;
1585 else if (!ctx
->_ImageTransferState
&&
1586 (srcType
== GL_UNSIGNED_BYTE
||
1587 srcType
== GL_UNSIGNED_INT_8_8_8_8
||
1588 srcType
== GL_UNSIGNED_INT_8_8_8_8_REV
) &&
1589 can_swizzle(baseInternalFormat
) &&
1590 can_swizzle(srcFormat
)) {
1594 /* dstmap - how to swizzle from RGBA to dst format:
1596 if ((littleEndian
&& dstFormat
== &_mesa_texformat_argb8888
) ||
1597 (!littleEndian
&& dstFormat
== &_mesa_texformat_argb8888_rev
)) {
1598 dstmap
[3] = 3; /* alpha */
1599 dstmap
[2] = 0; /* red */
1600 dstmap
[1] = 1; /* green */
1601 dstmap
[0] = 2; /* blue */
1604 assert((littleEndian
&& dstFormat
== &_mesa_texformat_argb8888_rev
) ||
1605 (!littleEndian
&& dstFormat
== &_mesa_texformat_argb8888
));
1612 _mesa_swizzle_ubyte_image(ctx
, dims
,
1618 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1621 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1626 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1628 dstFormat
->BaseFormat
,
1629 srcWidth
, srcHeight
, srcDepth
,
1630 srcFormat
, srcType
, srcAddr
,
1632 const GLchan
*src
= tempImage
;
1633 GLint img
, row
, col
;
1636 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1637 for (img
= 0; img
< srcDepth
; img
++) {
1638 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1639 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1640 + dstYoffset
* dstRowStride
1641 + dstXoffset
* dstFormat
->TexelBytes
;
1642 for (row
= 0; row
< srcHeight
; row
++) {
1643 GLuint
*dstUI
= (GLuint
*) dstRow
;
1644 if (dstFormat
== &_mesa_texformat_argb8888
) {
1645 for (col
= 0; col
< srcWidth
; col
++) {
1646 dstUI
[col
] = PACK_COLOR_8888( CHAN_TO_UBYTE(src
[ACOMP
]),
1647 CHAN_TO_UBYTE(src
[RCOMP
]),
1648 CHAN_TO_UBYTE(src
[GCOMP
]),
1649 CHAN_TO_UBYTE(src
[BCOMP
]) );
1654 for (col
= 0; col
< srcWidth
; col
++) {
1655 dstUI
[col
] = PACK_COLOR_8888_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
1656 CHAN_TO_UBYTE(src
[RCOMP
]),
1657 CHAN_TO_UBYTE(src
[GCOMP
]),
1658 CHAN_TO_UBYTE(src
[BCOMP
]) );
1662 dstRow
+= dstRowStride
;
1665 _mesa_free((void *) tempImage
);
1672 _mesa_texstore_rgb888(TEXSTORE_PARAMS
)
1674 const GLboolean littleEndian
= _mesa_little_endian();
1676 ASSERT(dstFormat
== &_mesa_texformat_rgb888
);
1677 ASSERT(dstFormat
->TexelBytes
== 3);
1679 if (!ctx
->_ImageTransferState
&&
1680 !srcPacking
->SwapBytes
&&
1681 baseInternalFormat
== GL_RGB
&&
1682 srcFormat
== GL_BGR
&&
1683 srcType
== GL_UNSIGNED_BYTE
&&
1685 /* simple memcpy path */
1686 memcpy_texture(ctx
, dims
,
1687 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1690 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1691 srcAddr
, srcPacking
);
1693 else if (!ctx
->_ImageTransferState
&&
1694 !srcPacking
->SwapBytes
&&
1695 srcFormat
== GL_RGBA
&&
1696 srcType
== GL_UNSIGNED_BYTE
) {
1697 /* extract RGB from RGBA */
1698 GLint img
, row
, col
;
1699 for (img
= 0; img
< srcDepth
; img
++) {
1700 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1701 srcWidth
, srcFormat
, srcType
);
1702 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1703 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1704 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1705 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1706 + dstYoffset
* dstRowStride
1707 + dstXoffset
* dstFormat
->TexelBytes
;
1708 for (row
= 0; row
< srcHeight
; row
++) {
1709 for (col
= 0; col
< srcWidth
; col
++) {
1710 dstRow
[col
* 3 + 0] = srcRow
[col
* 4 + BCOMP
];
1711 dstRow
[col
* 3 + 1] = srcRow
[col
* 4 + GCOMP
];
1712 dstRow
[col
* 3 + 2] = srcRow
[col
* 4 + RCOMP
];
1714 dstRow
+= dstRowStride
;
1715 srcRow
+= srcRowStride
;
1719 else if (!ctx
->_ImageTransferState
&&
1720 srcType
== GL_UNSIGNED_BYTE
&&
1721 can_swizzle(baseInternalFormat
) &&
1722 can_swizzle(srcFormat
)) {
1726 /* dstmap - how to swizzle from RGBA to dst format:
1731 dstmap
[3] = ONE
; /* ? */
1733 _mesa_swizzle_ubyte_image(ctx
, dims
,
1738 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1739 dstRowStride
, dstImageOffsets
,
1740 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1745 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1747 dstFormat
->BaseFormat
,
1748 srcWidth
, srcHeight
, srcDepth
,
1749 srcFormat
, srcType
, srcAddr
,
1751 const GLchan
*src
= (const GLchan
*) tempImage
;
1752 GLint img
, row
, col
;
1755 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1756 for (img
= 0; img
< srcDepth
; img
++) {
1757 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1758 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1759 + dstYoffset
* dstRowStride
1760 + dstXoffset
* dstFormat
->TexelBytes
;
1761 for (row
= 0; row
< srcHeight
; row
++) {
1764 for (col
= 0; col
< srcWidth
; col
++) {
1765 dstRow
[col
* 3 + 0] = CHAN_TO_UBYTE(src
[RCOMP
]);
1766 dstRow
[col
* 3 + 1] = CHAN_TO_UBYTE(src
[GCOMP
]);
1767 dstRow
[col
* 3 + 2] = CHAN_TO_UBYTE(src
[BCOMP
]);
1772 for (col
= 0; col
< srcWidth
; col
++) {
1773 dstRow
[col
* 3 + 0] = srcUB
[BCOMP
];
1774 dstRow
[col
* 3 + 1] = srcUB
[GCOMP
];
1775 dstRow
[col
* 3 + 2] = srcUB
[RCOMP
];
1780 for (col
= 0; col
< srcWidth
; col
++) {
1781 dstRow
[col
* 3 + 0] = CHAN_TO_UBYTE(src
[BCOMP
]);
1782 dstRow
[col
* 3 + 1] = CHAN_TO_UBYTE(src
[GCOMP
]);
1783 dstRow
[col
* 3 + 2] = CHAN_TO_UBYTE(src
[RCOMP
]);
1787 dstRow
+= dstRowStride
;
1790 _mesa_free((void *) tempImage
);
1797 _mesa_texstore_bgr888(TEXSTORE_PARAMS
)
1799 const GLboolean littleEndian
= _mesa_little_endian();
1801 ASSERT(dstFormat
== &_mesa_texformat_bgr888
);
1802 ASSERT(dstFormat
->TexelBytes
== 3);
1804 if (!ctx
->_ImageTransferState
&&
1805 !srcPacking
->SwapBytes
&&
1806 baseInternalFormat
== GL_RGB
&&
1807 srcFormat
== GL_RGB
&&
1808 srcType
== GL_UNSIGNED_BYTE
&&
1810 /* simple memcpy path */
1811 memcpy_texture(ctx
, dims
,
1812 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1815 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1816 srcAddr
, srcPacking
);
1818 else if (!ctx
->_ImageTransferState
&&
1819 !srcPacking
->SwapBytes
&&
1820 srcFormat
== GL_RGBA
&&
1821 srcType
== GL_UNSIGNED_BYTE
) {
1822 /* extract BGR from RGBA */
1824 for (img
= 0; img
< srcDepth
; img
++) {
1825 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
,
1826 srcWidth
, srcFormat
, srcType
);
1827 GLubyte
*srcRow
= (GLubyte
*) _mesa_image_address(dims
, srcPacking
,
1828 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, 0, 0);
1829 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1830 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1831 + dstYoffset
* dstRowStride
1832 + dstXoffset
* dstFormat
->TexelBytes
;
1833 for (row
= 0; row
< srcHeight
; row
++) {
1834 for (col
= 0; col
< srcWidth
; col
++) {
1835 dstRow
[col
* 3 + 0] = srcRow
[col
* 4 + RCOMP
];
1836 dstRow
[col
* 3 + 1] = srcRow
[col
* 4 + GCOMP
];
1837 dstRow
[col
* 3 + 2] = srcRow
[col
* 4 + BCOMP
];
1839 dstRow
+= dstRowStride
;
1840 srcRow
+= srcRowStride
;
1844 else if (!ctx
->_ImageTransferState
&&
1845 srcType
== GL_UNSIGNED_BYTE
&&
1846 can_swizzle(baseInternalFormat
) &&
1847 can_swizzle(srcFormat
)) {
1851 /* dstmap - how to swizzle from RGBA to dst format:
1856 dstmap
[3] = ONE
; /* ? */
1858 _mesa_swizzle_ubyte_image(ctx
, dims
,
1863 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1864 dstRowStride
, dstImageOffsets
,
1865 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
1870 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1872 dstFormat
->BaseFormat
,
1873 srcWidth
, srcHeight
, srcDepth
,
1874 srcFormat
, srcType
, srcAddr
,
1876 const GLchan
*src
= (const GLchan
*) tempImage
;
1877 GLint img
, row
, col
;
1880 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1881 for (img
= 0; img
< srcDepth
; img
++) {
1882 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1883 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1884 + dstYoffset
* dstRowStride
1885 + dstXoffset
* dstFormat
->TexelBytes
;
1886 for (row
= 0; row
< srcHeight
; row
++) {
1887 for (col
= 0; col
< srcWidth
; col
++) {
1888 dstRow
[col
* 3 + 0] = CHAN_TO_UBYTE(src
[RCOMP
]);
1889 dstRow
[col
* 3 + 1] = CHAN_TO_UBYTE(src
[GCOMP
]);
1890 dstRow
[col
* 3 + 2] = CHAN_TO_UBYTE(src
[BCOMP
]);
1893 dstRow
+= dstRowStride
;
1896 _mesa_free((void *) tempImage
);
1903 _mesa_texstore_argb4444(TEXSTORE_PARAMS
)
1905 ASSERT(dstFormat
== &_mesa_texformat_argb4444
||
1906 dstFormat
== &_mesa_texformat_argb4444_rev
);
1907 ASSERT(dstFormat
->TexelBytes
== 2);
1909 if (!ctx
->_ImageTransferState
&&
1910 !srcPacking
->SwapBytes
&&
1911 dstFormat
== &_mesa_texformat_argb4444
&&
1912 baseInternalFormat
== GL_RGBA
&&
1913 srcFormat
== GL_BGRA
&&
1914 srcType
== GL_UNSIGNED_SHORT_4_4_4_4_REV
) {
1915 /* simple memcpy path */
1916 memcpy_texture(ctx
, dims
,
1917 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1920 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1921 srcAddr
, srcPacking
);
1925 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1927 dstFormat
->BaseFormat
,
1928 srcWidth
, srcHeight
, srcDepth
,
1929 srcFormat
, srcType
, srcAddr
,
1931 const GLchan
*src
= tempImage
;
1932 GLint img
, row
, col
;
1935 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
1936 for (img
= 0; img
< srcDepth
; img
++) {
1937 GLubyte
*dstRow
= (GLubyte
*) dstAddr
1938 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
1939 + dstYoffset
* dstRowStride
1940 + dstXoffset
* dstFormat
->TexelBytes
;
1941 for (row
= 0; row
< srcHeight
; row
++) {
1942 GLushort
*dstUS
= (GLushort
*) dstRow
;
1943 if (dstFormat
== &_mesa_texformat_argb4444
) {
1944 for (col
= 0; col
< srcWidth
; col
++) {
1945 dstUS
[col
] = PACK_COLOR_4444( CHAN_TO_UBYTE(src
[ACOMP
]),
1946 CHAN_TO_UBYTE(src
[RCOMP
]),
1947 CHAN_TO_UBYTE(src
[GCOMP
]),
1948 CHAN_TO_UBYTE(src
[BCOMP
]) );
1953 for (col
= 0; col
< srcWidth
; col
++) {
1954 dstUS
[col
] = PACK_COLOR_4444_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
1955 CHAN_TO_UBYTE(src
[RCOMP
]),
1956 CHAN_TO_UBYTE(src
[GCOMP
]),
1957 CHAN_TO_UBYTE(src
[BCOMP
]) );
1961 dstRow
+= dstRowStride
;
1964 _mesa_free((void *) tempImage
);
1972 _mesa_texstore_argb1555(TEXSTORE_PARAMS
)
1974 ASSERT(dstFormat
== &_mesa_texformat_argb1555
||
1975 dstFormat
== &_mesa_texformat_argb1555_rev
);
1976 ASSERT(dstFormat
->TexelBytes
== 2);
1978 if (!ctx
->_ImageTransferState
&&
1979 !srcPacking
->SwapBytes
&&
1980 dstFormat
== &_mesa_texformat_argb1555
&&
1981 baseInternalFormat
== GL_RGBA
&&
1982 srcFormat
== GL_BGRA
&&
1983 srcType
== GL_UNSIGNED_SHORT_1_5_5_5_REV
) {
1984 /* simple memcpy path */
1985 memcpy_texture(ctx
, dims
,
1986 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
1989 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
1990 srcAddr
, srcPacking
);
1994 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
1996 dstFormat
->BaseFormat
,
1997 srcWidth
, srcHeight
, srcDepth
,
1998 srcFormat
, srcType
, srcAddr
,
2000 const GLchan
*src
=tempImage
;
2001 GLint img
, row
, col
;
2004 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2005 for (img
= 0; img
< srcDepth
; img
++) {
2006 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2007 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2008 + dstYoffset
* dstRowStride
2009 + dstXoffset
* dstFormat
->TexelBytes
;
2010 for (row
= 0; row
< srcHeight
; row
++) {
2011 GLushort
*dstUS
= (GLushort
*) dstRow
;
2012 if (dstFormat
== &_mesa_texformat_argb1555
) {
2013 for (col
= 0; col
< srcWidth
; col
++) {
2014 dstUS
[col
] = PACK_COLOR_1555( CHAN_TO_UBYTE(src
[ACOMP
]),
2015 CHAN_TO_UBYTE(src
[RCOMP
]),
2016 CHAN_TO_UBYTE(src
[GCOMP
]),
2017 CHAN_TO_UBYTE(src
[BCOMP
]) );
2022 for (col
= 0; col
< srcWidth
; col
++) {
2023 dstUS
[col
] = PACK_COLOR_1555_REV( CHAN_TO_UBYTE(src
[ACOMP
]),
2024 CHAN_TO_UBYTE(src
[RCOMP
]),
2025 CHAN_TO_UBYTE(src
[GCOMP
]),
2026 CHAN_TO_UBYTE(src
[BCOMP
]) );
2030 dstRow
+= dstRowStride
;
2033 _mesa_free((void *) tempImage
);
2040 _mesa_texstore_al88(TEXSTORE_PARAMS
)
2042 const GLboolean littleEndian
= _mesa_little_endian();
2044 ASSERT(dstFormat
== &_mesa_texformat_al88
||
2045 dstFormat
== &_mesa_texformat_al88_rev
);
2046 ASSERT(dstFormat
->TexelBytes
== 2);
2048 if (!ctx
->_ImageTransferState
&&
2049 !srcPacking
->SwapBytes
&&
2050 dstFormat
== &_mesa_texformat_al88
&&
2051 baseInternalFormat
== GL_LUMINANCE_ALPHA
&&
2052 srcFormat
== GL_LUMINANCE_ALPHA
&&
2053 srcType
== GL_UNSIGNED_BYTE
&&
2055 /* simple memcpy path */
2056 memcpy_texture(ctx
, dims
,
2057 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2060 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2061 srcAddr
, srcPacking
);
2063 else if (!ctx
->_ImageTransferState
&&
2065 srcType
== GL_UNSIGNED_BYTE
&&
2066 can_swizzle(baseInternalFormat
) &&
2067 can_swizzle(srcFormat
)) {
2071 /* dstmap - how to swizzle from RGBA to dst format:
2073 if ((littleEndian
&& dstFormat
== &_mesa_texformat_al88
) ||
2074 (!littleEndian
&& dstFormat
== &_mesa_texformat_al88_rev
)) {
2082 dstmap
[2] = ZERO
; /* ? */
2083 dstmap
[3] = ONE
; /* ? */
2085 _mesa_swizzle_ubyte_image(ctx
, dims
,
2090 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2091 dstRowStride
, dstImageOffsets
,
2092 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2097 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2099 dstFormat
->BaseFormat
,
2100 srcWidth
, srcHeight
, srcDepth
,
2101 srcFormat
, srcType
, srcAddr
,
2103 const GLchan
*src
= tempImage
;
2104 GLint img
, row
, col
;
2107 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2108 for (img
= 0; img
< srcDepth
; img
++) {
2109 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2110 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2111 + dstYoffset
* dstRowStride
2112 + dstXoffset
* dstFormat
->TexelBytes
;
2113 for (row
= 0; row
< srcHeight
; row
++) {
2114 GLushort
*dstUS
= (GLushort
*) dstRow
;
2115 if (dstFormat
== &_mesa_texformat_al88
) {
2116 for (col
= 0; col
< srcWidth
; col
++) {
2117 /* src[0] is luminance, src[1] is alpha */
2118 dstUS
[col
] = PACK_COLOR_88( CHAN_TO_UBYTE(src
[1]),
2119 CHAN_TO_UBYTE(src
[0]) );
2124 for (col
= 0; col
< srcWidth
; col
++) {
2125 /* src[0] is luminance, src[1] is alpha */
2126 dstUS
[col
] = PACK_COLOR_88_REV( CHAN_TO_UBYTE(src
[1]),
2127 CHAN_TO_UBYTE(src
[0]) );
2131 dstRow
+= dstRowStride
;
2134 _mesa_free((void *) tempImage
);
2141 _mesa_texstore_rgb332(TEXSTORE_PARAMS
)
2143 ASSERT(dstFormat
== &_mesa_texformat_rgb332
);
2144 ASSERT(dstFormat
->TexelBytes
== 1);
2146 if (!ctx
->_ImageTransferState
&&
2147 !srcPacking
->SwapBytes
&&
2148 baseInternalFormat
== GL_RGB
&&
2149 srcFormat
== GL_RGB
&& srcType
== GL_UNSIGNED_BYTE_3_3_2
) {
2150 /* simple memcpy path */
2151 memcpy_texture(ctx
, dims
,
2152 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2155 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2156 srcAddr
, srcPacking
);
2160 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2162 dstFormat
->BaseFormat
,
2163 srcWidth
, srcHeight
, srcDepth
,
2164 srcFormat
, srcType
, srcAddr
,
2166 const GLchan
*src
= tempImage
;
2167 GLint img
, row
, col
;
2170 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2171 for (img
= 0; img
< srcDepth
; img
++) {
2172 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2173 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2174 + dstYoffset
* dstRowStride
2175 + dstXoffset
* dstFormat
->TexelBytes
;
2176 for (row
= 0; row
< srcHeight
; row
++) {
2177 for (col
= 0; col
< srcWidth
; col
++) {
2178 dstRow
[col
] = PACK_COLOR_332( CHAN_TO_UBYTE(src
[RCOMP
]),
2179 CHAN_TO_UBYTE(src
[GCOMP
]),
2180 CHAN_TO_UBYTE(src
[BCOMP
]) );
2183 dstRow
+= dstRowStride
;
2186 _mesa_free((void *) tempImage
);
2193 * Texstore for _mesa_texformat_a8, _mesa_texformat_l8, _mesa_texformat_i8.
2196 _mesa_texstore_a8(TEXSTORE_PARAMS
)
2198 ASSERT(dstFormat
== &_mesa_texformat_a8
||
2199 dstFormat
== &_mesa_texformat_l8
||
2200 dstFormat
== &_mesa_texformat_i8
);
2201 ASSERT(dstFormat
->TexelBytes
== 1);
2203 if (!ctx
->_ImageTransferState
&&
2204 !srcPacking
->SwapBytes
&&
2205 baseInternalFormat
== srcFormat
&&
2206 srcType
== GL_UNSIGNED_BYTE
) {
2207 /* simple memcpy path */
2208 memcpy_texture(ctx
, dims
,
2209 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2212 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2213 srcAddr
, srcPacking
);
2215 else if (!ctx
->_ImageTransferState
&&
2216 srcType
== GL_UNSIGNED_BYTE
&&
2217 can_swizzle(baseInternalFormat
) &&
2218 can_swizzle(srcFormat
)) {
2222 /* dstmap - how to swizzle from RGBA to dst format:
2224 if (dstFormat
== &_mesa_texformat_a8
) {
2230 dstmap
[1] = ZERO
; /* ? */
2231 dstmap
[2] = ZERO
; /* ? */
2232 dstmap
[3] = ONE
; /* ? */
2234 _mesa_swizzle_ubyte_image(ctx
, dims
,
2239 dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2240 dstRowStride
, dstImageOffsets
,
2241 srcWidth
, srcHeight
, srcDepth
, srcAddr
,
2246 const GLchan
*tempImage
= _mesa_make_temp_chan_image(ctx
, dims
,
2248 dstFormat
->BaseFormat
,
2249 srcWidth
, srcHeight
, srcDepth
,
2250 srcFormat
, srcType
, srcAddr
,
2252 const GLchan
*src
= tempImage
;
2253 GLint img
, row
, col
;
2256 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2257 for (img
= 0; img
< srcDepth
; img
++) {
2258 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2259 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2260 + dstYoffset
* dstRowStride
2261 + dstXoffset
* dstFormat
->TexelBytes
;
2262 for (row
= 0; row
< srcHeight
; row
++) {
2263 for (col
= 0; col
< srcWidth
; col
++) {
2264 dstRow
[col
] = CHAN_TO_UBYTE(src
[col
]);
2266 dstRow
+= dstRowStride
;
2270 _mesa_free((void *) tempImage
);
2278 _mesa_texstore_ci8(TEXSTORE_PARAMS
)
2280 (void) dims
; (void) baseInternalFormat
;
2281 ASSERT(dstFormat
== &_mesa_texformat_ci8
);
2282 ASSERT(dstFormat
->TexelBytes
== 1);
2283 ASSERT(baseInternalFormat
== GL_COLOR_INDEX
);
2285 if (!ctx
->_ImageTransferState
&&
2286 !srcPacking
->SwapBytes
&&
2287 srcFormat
== GL_COLOR_INDEX
&&
2288 srcType
== GL_UNSIGNED_BYTE
) {
2289 /* simple memcpy path */
2290 memcpy_texture(ctx
, dims
,
2291 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2294 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2295 srcAddr
, srcPacking
);
2300 for (img
= 0; img
< srcDepth
; img
++) {
2301 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2302 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2303 + dstYoffset
* dstRowStride
2304 + dstXoffset
* dstFormat
->TexelBytes
;
2305 for (row
= 0; row
< srcHeight
; row
++) {
2306 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
2307 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
2308 _mesa_unpack_index_span(ctx
, srcWidth
, GL_UNSIGNED_BYTE
, dstRow
,
2309 srcType
, src
, srcPacking
,
2310 ctx
->_ImageTransferState
);
2311 dstRow
+= dstRowStride
;
2320 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_rev.
2323 _mesa_texstore_ycbcr(TEXSTORE_PARAMS
)
2325 const GLboolean littleEndian
= _mesa_little_endian();
2326 (void) ctx
; (void) dims
; (void) baseInternalFormat
;
2328 ASSERT((dstFormat
== &_mesa_texformat_ycbcr
) ||
2329 (dstFormat
== &_mesa_texformat_ycbcr_rev
));
2330 ASSERT(dstFormat
->TexelBytes
== 2);
2331 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
2332 ASSERT(srcFormat
== GL_YCBCR_MESA
);
2333 ASSERT((srcType
== GL_UNSIGNED_SHORT_8_8_MESA
) ||
2334 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
));
2335 ASSERT(baseInternalFormat
== GL_YCBCR_MESA
);
2337 /* always just memcpy since no pixel transfer ops apply */
2338 memcpy_texture(ctx
, dims
,
2339 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2342 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2343 srcAddr
, srcPacking
);
2345 /* Check if we need byte swapping */
2346 /* XXX the logic here _might_ be wrong */
2347 if (srcPacking
->SwapBytes
^
2348 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
) ^
2349 (dstFormat
== &_mesa_texformat_ycbcr_rev
) ^
2352 for (img
= 0; img
< srcDepth
; img
++) {
2353 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2354 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2355 + dstYoffset
* dstRowStride
2356 + dstXoffset
* dstFormat
->TexelBytes
;
2357 for (row
= 0; row
< srcHeight
; row
++) {
2358 _mesa_swap2((GLushort
*) dstRow
, srcWidth
);
2359 dstRow
+= dstRowStride
;
2369 * Store a combined depth/stencil texture image.
2372 _mesa_texstore_z24_s8(TEXSTORE_PARAMS
)
2374 const GLfloat depthScale
= (GLfloat
) 0xffffff;
2376 ASSERT(dstFormat
== &_mesa_texformat_z24_s8
);
2377 ASSERT(srcFormat
== GL_DEPTH_STENCIL_EXT
);
2378 ASSERT(srcType
== GL_UNSIGNED_INT_24_8_EXT
);
2380 if (ctx
->Pixel
.DepthScale
== 1.0f
&&
2381 ctx
->Pixel
.DepthBias
== 0.0f
&&
2382 !srcPacking
->SwapBytes
) {
2384 memcpy_texture(ctx
, dims
,
2385 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2388 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2389 srcAddr
, srcPacking
);
2393 const GLint srcRowStride
2394 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2398 for (img
= 0; img
< srcDepth
; img
++) {
2399 GLuint
*dstRow
= (GLuint
*) dstAddr
2400 + dstImageOffsets
[dstZoffset
+ img
]
2401 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2404 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2405 srcWidth
, srcHeight
,
2408 for (row
= 0; row
< srcHeight
; row
++) {
2409 GLubyte stencil
[MAX_WIDTH
];
2411 /* the 24 depth bits will be in the high position: */
2412 _mesa_unpack_depth_span(ctx
, srcWidth
,
2413 GL_UNSIGNED_INT_24_8_EXT
, /* dst type */
2414 dstRow
, /* dst addr */
2415 (GLuint
) depthScale
,
2416 srcType
, src
, srcPacking
);
2417 /* get the 8-bit stencil values */
2418 _mesa_unpack_stencil_span(ctx
, srcWidth
,
2419 GL_UNSIGNED_BYTE
, /* dst type */
2420 stencil
, /* dst addr */
2421 srcType
, src
, srcPacking
,
2422 ctx
->_ImageTransferState
);
2423 /* merge stencil values into depth values */
2424 for (i
= 0; i
< srcWidth
; i
++)
2425 dstRow
[i
] |= stencil
[i
];
2427 src
+= srcRowStride
;
2428 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2437 * Store a combined depth/stencil texture image.
2440 _mesa_texstore_s8_z24(TEXSTORE_PARAMS
)
2442 const GLuint depthScale
= 0xffffff;
2443 const GLint srcRowStride
2444 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
2448 ASSERT(dstFormat
== &_mesa_texformat_s8_z24
);
2449 ASSERT(srcFormat
== GL_DEPTH_STENCIL_EXT
|| srcFormat
== GL_DEPTH_COMPONENT
);
2450 ASSERT(srcFormat
!= GL_DEPTH_STENCIL_EXT
|| srcType
== GL_UNSIGNED_INT_24_8_EXT
);
2452 /* In case we only upload depth we need to preserve the stencil */
2453 if (srcFormat
== GL_DEPTH_COMPONENT
) {
2454 for (img
= 0; img
< srcDepth
; img
++) {
2455 GLuint
*dstRow
= (GLuint
*) dstAddr
2456 + dstImageOffsets
[dstZoffset
+ img
]
2457 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2460 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2461 srcWidth
, srcHeight
,
2464 for (row
= 0; row
< srcHeight
; row
++) {
2465 GLuint depth
[MAX_WIDTH
];
2467 _mesa_unpack_depth_span(ctx
, srcWidth
,
2468 GL_UNSIGNED_INT
, /* dst type */
2469 depth
, /* dst addr */
2471 srcType
, src
, srcPacking
);
2473 for (i
= 0; i
< srcWidth
; i
++)
2474 dstRow
[i
] = depth
[i
] | (dstRow
[i
] & 0xFF000000);
2476 src
+= srcRowStride
;
2477 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2482 for (img
= 0; img
< srcDepth
; img
++) {
2483 GLuint
*dstRow
= (GLuint
*) dstAddr
2484 + dstImageOffsets
[dstZoffset
+ img
]
2485 + dstYoffset
* dstRowStride
/ sizeof(GLuint
)
2488 = (const GLuint
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
2489 srcWidth
, srcHeight
,
2492 for (row
= 0; row
< srcHeight
; row
++) {
2493 GLubyte stencil
[MAX_WIDTH
];
2495 /* the 24 depth bits will be in the low position: */
2496 _mesa_unpack_depth_span(ctx
, srcWidth
,
2497 GL_UNSIGNED_INT
, /* dst type */
2498 dstRow
, /* dst addr */
2500 srcType
, src
, srcPacking
);
2501 /* get the 8-bit stencil values */
2502 _mesa_unpack_stencil_span(ctx
, srcWidth
,
2503 GL_UNSIGNED_BYTE
, /* dst type */
2504 stencil
, /* dst addr */
2505 srcType
, src
, srcPacking
,
2506 ctx
->_ImageTransferState
);
2507 /* merge stencil values into depth values */
2508 for (i
= 0; i
< srcWidth
; i
++)
2509 dstRow
[i
] |= stencil
[i
] << 24;
2511 src
+= srcRowStride
;
2512 dstRow
+= dstRowStride
/ sizeof(GLuint
);
2520 * Store an image in any of the formats:
2521 * _mesa_texformat_rgba_float32
2522 * _mesa_texformat_rgb_float32
2523 * _mesa_texformat_alpha_float32
2524 * _mesa_texformat_luminance_float32
2525 * _mesa_texformat_luminance_alpha_float32
2526 * _mesa_texformat_intensity_float32
2529 _mesa_texstore_rgba_float32(TEXSTORE_PARAMS
)
2531 const GLint components
= _mesa_components_in_format(dstFormat
->BaseFormat
);
2533 ASSERT(dstFormat
== &_mesa_texformat_rgba_float32
||
2534 dstFormat
== &_mesa_texformat_rgb_float32
||
2535 dstFormat
== &_mesa_texformat_alpha_float32
||
2536 dstFormat
== &_mesa_texformat_luminance_float32
||
2537 dstFormat
== &_mesa_texformat_luminance_alpha_float32
||
2538 dstFormat
== &_mesa_texformat_intensity_float32
);
2539 ASSERT(baseInternalFormat
== GL_RGBA
||
2540 baseInternalFormat
== GL_RGB
||
2541 baseInternalFormat
== GL_ALPHA
||
2542 baseInternalFormat
== GL_LUMINANCE
||
2543 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
2544 baseInternalFormat
== GL_INTENSITY
);
2545 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLfloat
));
2547 if (!ctx
->_ImageTransferState
&&
2548 !srcPacking
->SwapBytes
&&
2549 baseInternalFormat
== srcFormat
&&
2550 srcType
== GL_FLOAT
) {
2551 /* simple memcpy path */
2552 memcpy_texture(ctx
, dims
,
2553 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2556 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2557 srcAddr
, srcPacking
);
2561 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2563 dstFormat
->BaseFormat
,
2564 srcWidth
, srcHeight
, srcDepth
,
2565 srcFormat
, srcType
, srcAddr
,
2567 const GLfloat
*srcRow
= tempImage
;
2572 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2573 bytesPerRow
= srcWidth
* components
* sizeof(GLfloat
);
2574 for (img
= 0; img
< srcDepth
; img
++) {
2575 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2576 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2577 + dstYoffset
* dstRowStride
2578 + dstXoffset
* dstFormat
->TexelBytes
;
2579 for (row
= 0; row
< srcHeight
; row
++) {
2580 _mesa_memcpy(dstRow
, srcRow
, bytesPerRow
);
2581 dstRow
+= dstRowStride
;
2582 srcRow
+= srcWidth
* components
;
2586 _mesa_free((void *) tempImage
);
2593 * As above, but store 16-bit floats.
2596 _mesa_texstore_rgba_float16(TEXSTORE_PARAMS
)
2598 const GLint components
= _mesa_components_in_format(dstFormat
->BaseFormat
);
2600 ASSERT(dstFormat
== &_mesa_texformat_rgba_float16
||
2601 dstFormat
== &_mesa_texformat_rgb_float16
||
2602 dstFormat
== &_mesa_texformat_alpha_float16
||
2603 dstFormat
== &_mesa_texformat_luminance_float16
||
2604 dstFormat
== &_mesa_texformat_luminance_alpha_float16
||
2605 dstFormat
== &_mesa_texformat_intensity_float16
);
2606 ASSERT(baseInternalFormat
== GL_RGBA
||
2607 baseInternalFormat
== GL_RGB
||
2608 baseInternalFormat
== GL_ALPHA
||
2609 baseInternalFormat
== GL_LUMINANCE
||
2610 baseInternalFormat
== GL_LUMINANCE_ALPHA
||
2611 baseInternalFormat
== GL_INTENSITY
);
2612 ASSERT(dstFormat
->TexelBytes
== components
* sizeof(GLhalfARB
));
2614 if (!ctx
->_ImageTransferState
&&
2615 !srcPacking
->SwapBytes
&&
2616 baseInternalFormat
== srcFormat
&&
2617 srcType
== GL_HALF_FLOAT_ARB
) {
2618 /* simple memcpy path */
2619 memcpy_texture(ctx
, dims
,
2620 dstFormat
, dstAddr
, dstXoffset
, dstYoffset
, dstZoffset
,
2623 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
2624 srcAddr
, srcPacking
);
2628 const GLfloat
*tempImage
= make_temp_float_image(ctx
, dims
,
2630 dstFormat
->BaseFormat
,
2631 srcWidth
, srcHeight
, srcDepth
,
2632 srcFormat
, srcType
, srcAddr
,
2634 const GLfloat
*src
= tempImage
;
2638 _mesa_adjust_image_for_convolution(ctx
, dims
, &srcWidth
, &srcHeight
);
2639 for (img
= 0; img
< srcDepth
; img
++) {
2640 GLubyte
*dstRow
= (GLubyte
*) dstAddr
2641 + dstImageOffsets
[dstZoffset
+ img
] * dstFormat
->TexelBytes
2642 + dstYoffset
* dstRowStride
2643 + dstXoffset
* dstFormat
->TexelBytes
;
2644 for (row
= 0; row
< srcHeight
; row
++) {
2645 GLhalfARB
*dstTexel
= (GLhalfARB
*) dstRow
;
2647 for (i
= 0; i
< srcWidth
* components
; i
++) {
2648 dstTexel
[i
] = _mesa_float_to_half(src
[i
]);
2650 dstRow
+= dstRowStride
;
2651 src
+= srcWidth
* components
;
2655 _mesa_free((void *) tempImage
);
2661 #if FEATURE_EXT_texture_sRGB
2663 _mesa_texstore_srgb8(TEXSTORE_PARAMS
)
2665 const GLboolean littleEndian
= _mesa_little_endian();
2666 const struct gl_texture_format
*newDstFormat
;
2667 StoreTexImageFunc store
;
2670 ASSERT(dstFormat
== &_mesa_texformat_srgb8
);
2672 /* reuse normal rgb texstore code */
2674 newDstFormat
= &_mesa_texformat_bgr888
;
2675 store
= _mesa_texstore_bgr888
;
2678 newDstFormat
= &_mesa_texformat_rgb888
;
2679 store
= _mesa_texstore_rgb888
;
2682 k
= store(ctx
, dims
, baseInternalFormat
,
2683 newDstFormat
, dstAddr
,
2684 dstXoffset
, dstYoffset
, dstZoffset
,
2685 dstRowStride
, dstImageOffsets
,
2686 srcWidth
, srcHeight
, srcDepth
,
2688 srcAddr
, srcPacking
);
2694 _mesa_texstore_srgba8(TEXSTORE_PARAMS
)
2696 const GLboolean littleEndian
= _mesa_little_endian();
2697 const struct gl_texture_format
*newDstFormat
;
2700 ASSERT(dstFormat
== &_mesa_texformat_srgba8
);
2702 /* reuse normal rgba texstore code */
2704 newDstFormat
= &_mesa_texformat_rgba8888_rev
;
2706 newDstFormat
= &_mesa_texformat_rgba8888
;
2708 k
= _mesa_texstore_rgba8888(ctx
, dims
, baseInternalFormat
,
2709 newDstFormat
, dstAddr
,
2710 dstXoffset
, dstYoffset
, dstZoffset
,
2711 dstRowStride
, dstImageOffsets
,
2712 srcWidth
, srcHeight
, srcDepth
,
2714 srcAddr
, srcPacking
);
2720 _mesa_texstore_sl8(TEXSTORE_PARAMS
)
2722 const struct gl_texture_format
*newDstFormat
;
2725 ASSERT(dstFormat
== &_mesa_texformat_sl8
);
2727 newDstFormat
= &_mesa_texformat_l8
;
2729 /* _mesa_textore_a8 handles luminance8 too */
2730 k
= _mesa_texstore_a8(ctx
, dims
, baseInternalFormat
,
2731 newDstFormat
, dstAddr
,
2732 dstXoffset
, dstYoffset
, dstZoffset
,
2733 dstRowStride
, dstImageOffsets
,
2734 srcWidth
, srcHeight
, srcDepth
,
2736 srcAddr
, srcPacking
);
2742 _mesa_texstore_sla8(TEXSTORE_PARAMS
)
2744 const GLboolean littleEndian
= _mesa_little_endian();
2745 const struct gl_texture_format
*newDstFormat
;
2748 ASSERT(dstFormat
== &_mesa_texformat_sla8
);
2750 /* reuse normal luminance/alpha texstore code */
2752 newDstFormat
= &_mesa_texformat_al88
;
2754 newDstFormat
= &_mesa_texformat_al88_rev
;
2756 k
= _mesa_texstore_al88(ctx
, dims
, baseInternalFormat
,
2757 newDstFormat
, dstAddr
,
2758 dstXoffset
, dstYoffset
, dstZoffset
,
2759 dstRowStride
, dstImageOffsets
,
2760 srcWidth
, srcHeight
, srcDepth
,
2762 srcAddr
, srcPacking
);
2766 #endif /* FEATURE_EXT_texture_sRGB */
2770 * Check if an unpack PBO is active prior to fetching a texture image.
2771 * If so, do bounds checking and map the buffer into main memory.
2772 * Any errors detected will be recorded.
2773 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
2776 _mesa_validate_pbo_teximage(GLcontext
*ctx
, GLuint dimensions
,
2777 GLsizei width
, GLsizei height
, GLsizei depth
,
2778 GLenum format
, GLenum type
, const GLvoid
*pixels
,
2779 const struct gl_pixelstore_attrib
*unpack
,
2780 const char *funcName
)
2784 if (unpack
->BufferObj
->Name
== 0) {
2788 if (!_mesa_validate_pbo_access(dimensions
, unpack
, width
, height
, depth
,
2789 format
, type
, pixels
)) {
2790 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(invalid PBO access");
2794 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
2795 GL_READ_ONLY_ARB
, unpack
->BufferObj
);
2797 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(PBO is mapped");
2801 return ADD_POINTERS(buf
, pixels
);
2806 * Check if an unpack PBO is active prior to fetching a compressed texture
2808 * If so, do bounds checking and map the buffer into main memory.
2809 * Any errors detected will be recorded.
2810 * The caller _must_ call _mesa_unmap_teximage_pbo() too!
2813 _mesa_validate_pbo_compressed_teximage(GLcontext
*ctx
,
2814 GLsizei imageSize
, const GLvoid
*pixels
,
2815 const struct gl_pixelstore_attrib
*packing
,
2816 const char *funcName
)
2820 if (packing
->BufferObj
->Name
== 0) {
2821 /* not using a PBO - return pointer unchanged */
2824 if ((const GLubyte
*) pixels
+ imageSize
>
2825 ((const GLubyte
*) 0) + packing
->BufferObj
->Size
) {
2826 /* out of bounds read! */
2827 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(invalid PBO access");
2831 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
2832 GL_READ_ONLY_ARB
, packing
->BufferObj
);
2834 _mesa_error(ctx
, GL_INVALID_OPERATION
, funcName
, "(PBO is mapped");
2838 return ADD_POINTERS(buf
, pixels
);
2843 * This function must be called after either of the validate_pbo_*_teximage()
2844 * functions. It unmaps the PBO buffer if it was mapped earlier.
2847 _mesa_unmap_teximage_pbo(GLcontext
*ctx
,
2848 const struct gl_pixelstore_attrib
*unpack
)
2850 if (unpack
->BufferObj
->Name
) {
2851 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_UNPACK_BUFFER_EXT
,
2859 * Adaptor for fetching a GLchan texel from a float-valued texture.
2862 fetch_texel_float_to_chan(const struct gl_texture_image
*texImage
,
2863 GLint i
, GLint j
, GLint k
, GLchan
*texelOut
)
2866 ASSERT(texImage
->FetchTexelf
);
2867 texImage
->FetchTexelf(texImage
, i
, j
, k
, temp
);
2868 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
||
2869 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2870 /* just one channel */
2871 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[0], temp
[0]);
2875 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[0], temp
[0]);
2876 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[1], temp
[1]);
2877 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[2], temp
[2]);
2878 UNCLAMPED_FLOAT_TO_CHAN(texelOut
[3], temp
[3]);
2884 * Adaptor for fetching a float texel from a GLchan-valued texture.
2887 fetch_texel_chan_to_float(const struct gl_texture_image
*texImage
,
2888 GLint i
, GLint j
, GLint k
, GLfloat
*texelOut
)
2891 ASSERT(texImage
->FetchTexelc
);
2892 texImage
->FetchTexelc(texImage
, i
, j
, k
, temp
);
2893 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
||
2894 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2895 /* just one channel */
2896 texelOut
[0] = CHAN_TO_FLOAT(temp
[0]);
2900 texelOut
[0] = CHAN_TO_FLOAT(temp
[0]);
2901 texelOut
[1] = CHAN_TO_FLOAT(temp
[1]);
2902 texelOut
[2] = CHAN_TO_FLOAT(temp
[2]);
2903 texelOut
[3] = CHAN_TO_FLOAT(temp
[3]);
2909 * Initialize the texture image's FetchTexelc and FetchTexelf methods.
2912 _mesa_set_fetch_functions(struct gl_texture_image
*texImage
, GLuint dims
)
2914 ASSERT(dims
== 1 || dims
== 2 || dims
== 3);
2915 ASSERT(texImage
->TexFormat
);
2919 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel1D
;
2920 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel1Df
;
2923 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel2D
;
2924 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel2Df
;
2927 texImage
->FetchTexelc
= texImage
->TexFormat
->FetchTexel3D
;
2928 texImage
->FetchTexelf
= texImage
->TexFormat
->FetchTexel3Df
;
2934 /* now check if we need to use a float/chan adaptor */
2935 if (!texImage
->FetchTexelc
) {
2936 texImage
->FetchTexelc
= fetch_texel_float_to_chan
;
2938 else if (!texImage
->FetchTexelf
) {
2939 texImage
->FetchTexelf
= fetch_texel_chan_to_float
;
2943 ASSERT(texImage
->FetchTexelc
);
2944 ASSERT(texImage
->FetchTexelf
);
2949 * Choose the actual storage format for a new texture image.
2950 * Mainly, this is a wrapper for the driver's ChooseTextureFormat() function.
2951 * Also set some other texImage fields related to texture compression, etc.
2952 * \param ctx rendering context
2953 * \param texImage the gl_texture_image
2954 * \param dims texture dimensions (1, 2 or 3)
2955 * \param format the user-specified format parameter
2956 * \param type the user-specified type parameter
2957 * \param internalFormat the user-specified internal format hint
2960 choose_texture_format(GLcontext
*ctx
, struct gl_texture_image
*texImage
,
2962 GLenum format
, GLenum type
, GLint internalFormat
)
2964 ASSERT(dims
== 1 || dims
== 2 || dims
== 3);
2965 ASSERT(ctx
->Driver
.ChooseTextureFormat
);
2968 = ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2970 ASSERT(texImage
->TexFormat
);
2972 _mesa_set_fetch_functions(texImage
, dims
);
2974 if (texImage
->TexFormat
->TexelBytes
== 0) {
2975 /* must be a compressed format */
2976 texImage
->IsCompressed
= GL_TRUE
;
2977 texImage
->CompressedSize
=
2978 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
2979 texImage
->Height
, texImage
->Depth
,
2980 texImage
->TexFormat
->MesaFormat
);
2983 /* non-compressed format */
2984 texImage
->IsCompressed
= GL_FALSE
;
2985 texImage
->CompressedSize
= 0;
2992 * This is the software fallback for Driver.TexImage1D()
2993 * and Driver.CopyTexImage1D().
2994 * \sa _mesa_store_teximage2d()
2995 * Note that the width may not be the actual texture width since it may
2996 * be changed by convolution w/ GL_REDUCE. The texImage->Width field will
2997 * have the actual texture size.
3000 _mesa_store_teximage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3001 GLint internalFormat
,
3002 GLint width
, GLint border
,
3003 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3004 const struct gl_pixelstore_attrib
*packing
,
3005 struct gl_texture_object
*texObj
,
3006 struct gl_texture_image
*texImage
)
3011 choose_texture_format(ctx
, texImage
, 1, format
, type
, internalFormat
);
3013 /* allocate memory */
3014 if (texImage
->IsCompressed
)
3015 sizeInBytes
= texImage
->CompressedSize
;
3017 sizeInBytes
= texImage
->Width
* texImage
->TexFormat
->TexelBytes
;
3018 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3019 if (!texImage
->Data
) {
3020 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage1D");
3024 pixels
= _mesa_validate_pbo_teximage(ctx
, 1, width
, 1, 1, format
, type
,
3025 pixels
, packing
, "glTexImage1D");
3027 /* Note: we check for a NULL image pointer here, _after_ we allocated
3028 * memory for the texture. That's what the GL spec calls for.
3033 const GLint dstRowStride
= 0;
3035 ASSERT(texImage
->TexFormat
->StoreImage
);
3036 success
= texImage
->TexFormat
->StoreImage(ctx
, 1, texImage
->_BaseFormat
,
3037 texImage
->TexFormat
,
3039 0, 0, 0, /* dstX/Y/Zoffset */
3041 texImage
->ImageOffsets
,
3043 format
, type
, pixels
, packing
);
3045 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage1D");
3049 /* GL_SGIS_generate_mipmap */
3050 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3051 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3054 _mesa_unmap_teximage_pbo(ctx
, packing
);
3059 * This is the software fallback for Driver.TexImage2D()
3060 * and Driver.CopyTexImage2D().
3062 * This function is oriented toward storing images in main memory, rather
3063 * than VRAM. Device driver's can easily plug in their own replacement.
3065 * Note: width and height may be pre-convolved dimensions, but
3066 * texImage->Width and texImage->Height will be post-convolved dimensions.
3069 _mesa_store_teximage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3070 GLint internalFormat
,
3071 GLint width
, GLint height
, GLint border
,
3072 GLenum format
, GLenum type
, const void *pixels
,
3073 const struct gl_pixelstore_attrib
*packing
,
3074 struct gl_texture_object
*texObj
,
3075 struct gl_texture_image
*texImage
)
3077 GLint texelBytes
, sizeInBytes
;
3080 choose_texture_format(ctx
, texImage
, 2, format
, type
, internalFormat
);
3082 texelBytes
= texImage
->TexFormat
->TexelBytes
;
3084 /* allocate memory */
3085 if (texImage
->IsCompressed
)
3086 sizeInBytes
= texImage
->CompressedSize
;
3088 sizeInBytes
= texImage
->Width
* texImage
->Height
* texelBytes
;
3089 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3090 if (!texImage
->Data
) {
3091 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage2D");
3095 pixels
= _mesa_validate_pbo_teximage(ctx
, 2, width
, height
, 1, format
, type
,
3096 pixels
, packing
, "glTexImage2D");
3098 /* Note: we check for a NULL image pointer here, _after_ we allocated
3099 * memory for the texture. That's what the GL spec calls for.
3106 if (texImage
->IsCompressed
) {
3108 = _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
3111 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3113 ASSERT(texImage
->TexFormat
->StoreImage
);
3114 success
= texImage
->TexFormat
->StoreImage(ctx
, 2, texImage
->_BaseFormat
,
3115 texImage
->TexFormat
,
3117 0, 0, 0, /* dstX/Y/Zoffset */
3119 texImage
->ImageOffsets
,
3121 format
, type
, pixels
, packing
);
3123 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage2D");
3127 /* GL_SGIS_generate_mipmap */
3128 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3129 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3132 _mesa_unmap_teximage_pbo(ctx
, packing
);
3138 * This is the software fallback for Driver.TexImage3D()
3139 * and Driver.CopyTexImage3D().
3140 * \sa _mesa_store_teximage2d()
3143 _mesa_store_teximage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3144 GLint internalFormat
,
3145 GLint width
, GLint height
, GLint depth
, GLint border
,
3146 GLenum format
, GLenum type
, const void *pixels
,
3147 const struct gl_pixelstore_attrib
*packing
,
3148 struct gl_texture_object
*texObj
,
3149 struct gl_texture_image
*texImage
)
3151 GLint texelBytes
, sizeInBytes
;
3154 choose_texture_format(ctx
, texImage
, 3, format
, type
, internalFormat
);
3156 texelBytes
= texImage
->TexFormat
->TexelBytes
;
3158 /* allocate memory */
3159 if (texImage
->IsCompressed
)
3160 sizeInBytes
= texImage
->CompressedSize
;
3162 sizeInBytes
= width
* height
* depth
* texelBytes
;
3163 texImage
->Data
= _mesa_alloc_texmemory(sizeInBytes
);
3164 if (!texImage
->Data
) {
3165 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage3D");
3169 pixels
= _mesa_validate_pbo_teximage(ctx
, 3, width
, height
, depth
, format
,
3170 type
, pixels
, packing
, "glTexImage3D");
3172 /* Note: we check for a NULL image pointer here, _after_ we allocated
3173 * memory for the texture. That's what the GL spec calls for.
3180 if (texImage
->IsCompressed
) {
3182 = _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
3185 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3187 ASSERT(texImage
->TexFormat
->StoreImage
);
3188 success
= texImage
->TexFormat
->StoreImage(ctx
, 3, texImage
->_BaseFormat
,
3189 texImage
->TexFormat
,
3191 0, 0, 0, /* dstX/Y/Zoffset */
3193 texImage
->ImageOffsets
,
3194 width
, height
, depth
,
3195 format
, type
, pixels
, packing
);
3197 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage3D");
3201 /* GL_SGIS_generate_mipmap */
3202 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3203 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3206 _mesa_unmap_teximage_pbo(ctx
, packing
);
3213 * This is the software fallback for Driver.TexSubImage1D()
3214 * and Driver.CopyTexSubImage1D().
3217 _mesa_store_texsubimage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3218 GLint xoffset
, GLint width
,
3219 GLenum format
, GLenum type
, const void *pixels
,
3220 const struct gl_pixelstore_attrib
*packing
,
3221 struct gl_texture_object
*texObj
,
3222 struct gl_texture_image
*texImage
)
3224 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3225 pixels
= _mesa_validate_pbo_teximage(ctx
, 1, width
, 1, 1, format
, type
,
3226 pixels
, packing
, "glTexSubImage1D");
3231 const GLint dstRowStride
= 0;
3233 ASSERT(texImage
->TexFormat
->StoreImage
);
3234 success
= texImage
->TexFormat
->StoreImage(ctx
, 1, texImage
->_BaseFormat
,
3235 texImage
->TexFormat
,
3237 xoffset
, 0, 0, /* offsets */
3239 texImage
->ImageOffsets
,
3241 format
, type
, pixels
, packing
);
3243 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage1D");
3247 /* GL_SGIS_generate_mipmap */
3248 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3249 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3252 _mesa_unmap_teximage_pbo(ctx
, packing
);
3258 * This is the software fallback for Driver.TexSubImage2D()
3259 * and Driver.CopyTexSubImage2D().
3262 _mesa_store_texsubimage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3263 GLint xoffset
, GLint yoffset
,
3264 GLint width
, GLint height
,
3265 GLenum format
, GLenum type
, const void *pixels
,
3266 const struct gl_pixelstore_attrib
*packing
,
3267 struct gl_texture_object
*texObj
,
3268 struct gl_texture_image
*texImage
)
3270 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3271 pixels
= _mesa_validate_pbo_teximage(ctx
, 2, width
, height
, 1, format
, type
,
3272 pixels
, packing
, "glTexSubImage2D");
3277 GLint dstRowStride
= 0;
3279 if (texImage
->IsCompressed
) {
3280 dstRowStride
= _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
,
3284 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3286 ASSERT(texImage
->TexFormat
->StoreImage
);
3287 success
= texImage
->TexFormat
->StoreImage(ctx
, 2, texImage
->_BaseFormat
,
3288 texImage
->TexFormat
,
3290 xoffset
, yoffset
, 0,
3292 texImage
->ImageOffsets
,
3294 format
, type
, pixels
, packing
);
3296 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage2D");
3300 /* GL_SGIS_generate_mipmap */
3301 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3302 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3305 _mesa_unmap_teximage_pbo(ctx
, packing
);
3310 * This is the software fallback for Driver.TexSubImage3D().
3311 * and Driver.CopyTexSubImage3D().
3314 _mesa_store_texsubimage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3315 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3316 GLint width
, GLint height
, GLint depth
,
3317 GLenum format
, GLenum type
, const void *pixels
,
3318 const struct gl_pixelstore_attrib
*packing
,
3319 struct gl_texture_object
*texObj
,
3320 struct gl_texture_image
*texImage
)
3322 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3323 pixels
= _mesa_validate_pbo_teximage(ctx
, 3, width
, height
, depth
, format
,
3324 type
, pixels
, packing
,
3332 if (texImage
->IsCompressed
) {
3333 dstRowStride
= _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
,
3337 dstRowStride
= texImage
->RowStride
* texImage
->TexFormat
->TexelBytes
;
3339 ASSERT(texImage
->TexFormat
->StoreImage
);
3340 success
= texImage
->TexFormat
->StoreImage(ctx
, 3, texImage
->_BaseFormat
,
3341 texImage
->TexFormat
,
3343 xoffset
, yoffset
, zoffset
,
3345 texImage
->ImageOffsets
,
3346 width
, height
, depth
,
3347 format
, type
, pixels
, packing
);
3349 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage3D");
3353 /* GL_SGIS_generate_mipmap */
3354 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3355 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3358 _mesa_unmap_teximage_pbo(ctx
, packing
);
3363 * Fallback for Driver.CompressedTexImage1D()
3366 _mesa_store_compressed_teximage1d(GLcontext
*ctx
, GLenum target
, GLint level
,
3367 GLint internalFormat
,
3368 GLint width
, GLint border
,
3369 GLsizei imageSize
, const GLvoid
*data
,
3370 struct gl_texture_object
*texObj
,
3371 struct gl_texture_image
*texImage
)
3373 /* this space intentionally left blank */
3375 (void) target
; (void) level
;
3376 (void) internalFormat
;
3377 (void) width
; (void) border
;
3378 (void) imageSize
; (void) data
;
3386 * Fallback for Driver.CompressedTexImage2D()
3389 _mesa_store_compressed_teximage2d(GLcontext
*ctx
, GLenum target
, GLint level
,
3390 GLint internalFormat
,
3391 GLint width
, GLint height
, GLint border
,
3392 GLsizei imageSize
, const GLvoid
*data
,
3393 struct gl_texture_object
*texObj
,
3394 struct gl_texture_image
*texImage
)
3396 (void) width
; (void) height
; (void) border
;
3398 /* This is pretty simple, basically just do a memcpy without worrying
3399 * about the usual image unpacking or image transfer operations.
3403 ASSERT(texImage
->Width
> 0);
3404 ASSERT(texImage
->Height
> 0);
3405 ASSERT(texImage
->Depth
== 1);
3406 ASSERT(texImage
->Data
== NULL
); /* was freed in glCompressedTexImage2DARB */
3408 choose_texture_format(ctx
, texImage
, 2, 0, 0, internalFormat
);
3410 /* allocate storage */
3411 texImage
->Data
= _mesa_alloc_texmemory(imageSize
);
3412 if (!texImage
->Data
) {
3413 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexImage2DARB");
3417 data
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, data
,
3419 "glCompressedTexImage2D");
3424 ASSERT(texImage
->CompressedSize
== (GLuint
) imageSize
);
3425 MEMCPY(texImage
->Data
, data
, imageSize
);
3427 /* GL_SGIS_generate_mipmap */
3428 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3429 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3432 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);
3438 * Fallback for Driver.CompressedTexImage3D()
3441 _mesa_store_compressed_teximage3d(GLcontext
*ctx
, GLenum target
, GLint level
,
3442 GLint internalFormat
,
3443 GLint width
, GLint height
, GLint depth
,
3445 GLsizei imageSize
, const GLvoid
*data
,
3446 struct gl_texture_object
*texObj
,
3447 struct gl_texture_image
*texImage
)
3449 /* this space intentionally left blank */
3451 (void) target
; (void) level
;
3452 (void) internalFormat
;
3453 (void) width
; (void) height
; (void) depth
;
3455 (void) imageSize
; (void) data
;
3463 * Fallback for Driver.CompressedTexSubImage1D()
3466 _mesa_store_compressed_texsubimage1d(GLcontext
*ctx
, GLenum target
,
3468 GLint xoffset
, GLsizei width
,
3470 GLsizei imageSize
, const GLvoid
*data
,
3471 struct gl_texture_object
*texObj
,
3472 struct gl_texture_image
*texImage
)
3474 /* there are no compressed 1D texture formats yet */
3476 (void) target
; (void) level
;
3477 (void) xoffset
; (void) width
;
3479 (void) imageSize
; (void) data
;
3486 * Fallback for Driver.CompressedTexSubImage2D()
3489 _mesa_store_compressed_texsubimage2d(GLcontext
*ctx
, GLenum target
,
3491 GLint xoffset
, GLint yoffset
,
3492 GLsizei width
, GLsizei height
,
3494 GLsizei imageSize
, const GLvoid
*data
,
3495 struct gl_texture_object
*texObj
,
3496 struct gl_texture_image
*texImage
)
3498 GLint bytesPerRow
, destRowStride
, srcRowStride
;
3502 const GLuint mesaFormat
= texImage
->TexFormat
->MesaFormat
;
3506 /* these should have been caught sooner */
3507 ASSERT((width
& 3) == 0 || width
== 2 || width
== 1);
3508 ASSERT((height
& 3) == 0 || height
== 2 || height
== 1);
3509 ASSERT((xoffset
& 3) == 0);
3510 ASSERT((yoffset
& 3) == 0);
3512 /* get pointer to src pixels (may be in a pbo which we'll map here) */
3513 data
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, data
,
3515 "glCompressedTexSubImage2D");
3519 srcRowStride
= _mesa_compressed_row_stride(mesaFormat
, width
);
3520 src
= (const GLubyte
*) data
;
3522 destRowStride
= _mesa_compressed_row_stride(mesaFormat
, texImage
->Width
);
3523 dest
= _mesa_compressed_image_address(xoffset
, yoffset
, 0,
3524 texImage
->TexFormat
->MesaFormat
,
3526 (GLubyte
*) texImage
->Data
);
3528 bytesPerRow
= srcRowStride
;
3531 for (i
= 0; i
< rows
; i
++) {
3532 MEMCPY(dest
, src
, bytesPerRow
);
3533 dest
+= destRowStride
;
3534 src
+= srcRowStride
;
3537 /* GL_SGIS_generate_mipmap */
3538 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
3539 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3542 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);
3547 * Fallback for Driver.CompressedTexSubImage3D()
3550 _mesa_store_compressed_texsubimage3d(GLcontext
*ctx
, GLenum target
,
3552 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3553 GLsizei width
, GLsizei height
, GLsizei depth
,
3555 GLsizei imageSize
, const GLvoid
*data
,
3556 struct gl_texture_object
*texObj
,
3557 struct gl_texture_image
*texImage
)
3559 /* there are no compressed 3D texture formats yet */
3561 (void) target
; (void) level
;
3562 (void) xoffset
; (void) yoffset
; (void) zoffset
;
3563 (void) width
; (void) height
; (void) depth
;
3565 (void) imageSize
; (void) data
;
3573 #if FEATURE_EXT_texture_sRGB
3576 * Test if given texture image is an sRGB format.
3579 is_srgb_teximage(const struct gl_texture_image
*texImage
)
3581 switch (texImage
->TexFormat
->MesaFormat
) {
3582 case MESA_FORMAT_SRGB8
:
3583 case MESA_FORMAT_SRGBA8
:
3584 case MESA_FORMAT_SL8
:
3585 case MESA_FORMAT_SLA8
:
3592 #endif /* FEATURE_EXT_texture_sRGB */
3596 * This is the software fallback for Driver.GetTexImage().
3597 * All error checking will have been done before this routine is called.
3600 _mesa_get_teximage(GLcontext
*ctx
, GLenum target
, GLint level
,
3601 GLenum format
, GLenum type
, GLvoid
*pixels
,
3602 struct gl_texture_object
*texObj
,
3603 struct gl_texture_image
*texImage
)
3605 const GLuint dimensions
= (target
== GL_TEXTURE_3D
) ? 3 : 2;
3607 if (ctx
->Pack
.BufferObj
->Name
) {
3608 /* Packing texture image into a PBO.
3609 * Map the (potentially) VRAM-based buffer into our process space so
3610 * we can write into it with the code below.
3611 * A hardware driver might use a sophisticated blit to move the
3612 * texture data to the PBO if the PBO is in VRAM along with the texture.
3614 GLubyte
*buf
= (GLubyte
*)
3615 ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3616 GL_WRITE_ONLY_ARB
, ctx
->Pack
.BufferObj
);
3618 /* buffer is already mapped - that's an error */
3619 _mesa_error(ctx
, GL_INVALID_OPERATION
,"glGetTexImage(PBO is mapped)");
3622 /* <pixels> was an offset into the PBO.
3623 * Now make it a real, client-side pointer inside the mapped region.
3625 pixels
= ADD_POINTERS(buf
, pixels
);
3633 const GLint width
= texImage
->Width
;
3634 const GLint height
= texImage
->Height
;
3635 const GLint depth
= texImage
->Depth
;
3637 for (img
= 0; img
< depth
; img
++) {
3638 for (row
= 0; row
< height
; row
++) {
3639 /* compute destination address in client memory */
3640 GLvoid
*dest
= _mesa_image_address( dimensions
, &ctx
->Pack
, pixels
,
3641 width
, height
, format
, type
,
3645 if (format
== GL_COLOR_INDEX
) {
3646 GLuint indexRow
[MAX_WIDTH
];
3648 /* Can't use FetchTexel here because that returns RGBA */
3649 if (texImage
->TexFormat
->IndexBits
== 8) {
3650 const GLubyte
*src
= (const GLubyte
*) texImage
->Data
;
3651 src
+= width
* (img
* texImage
->Height
+ row
);
3652 for (col
= 0; col
< width
; col
++) {
3653 indexRow
[col
] = src
[col
];
3656 else if (texImage
->TexFormat
->IndexBits
== 16) {
3657 const GLushort
*src
= (const GLushort
*) texImage
->Data
;
3658 src
+= width
* (img
* texImage
->Height
+ row
);
3659 for (col
= 0; col
< width
; col
++) {
3660 indexRow
[col
] = src
[col
];
3665 "Color index problem in _mesa_GetTexImage");
3667 _mesa_pack_index_span(ctx
, width
, type
, dest
,
3668 indexRow
, &ctx
->Pack
,
3669 0 /* no image transfer */);
3671 else if (format
== GL_DEPTH_COMPONENT
) {
3672 GLfloat depthRow
[MAX_WIDTH
];
3674 for (col
= 0; col
< width
; col
++) {
3675 (*texImage
->FetchTexelf
)(texImage
, col
, row
, img
,
3678 _mesa_pack_depth_span(ctx
, width
, dest
, type
,
3679 depthRow
, &ctx
->Pack
);
3681 else if (format
== GL_DEPTH_STENCIL_EXT
) {
3682 /* XXX Note: we're bypassing texImage->FetchTexel()! */
3683 const GLuint
*src
= (const GLuint
*) texImage
->Data
;
3684 src
+= width
* row
+ width
* height
* img
;
3685 _mesa_memcpy(dest
, src
, width
* sizeof(GLuint
));
3686 if (ctx
->Pack
.SwapBytes
) {
3687 _mesa_swap4((GLuint
*) dest
, width
);
3690 else if (format
== GL_YCBCR_MESA
) {
3691 /* No pixel transfer */
3692 const GLint rowstride
= texImage
->RowStride
;
3694 (const GLushort
*) texImage
->Data
+ row
* rowstride
,
3695 width
* sizeof(GLushort
));
3696 /* check for byte swapping */
3697 if ((texImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR
3698 && type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
) ||
3699 (texImage
->TexFormat
->MesaFormat
== MESA_FORMAT_YCBCR_REV
3700 && type
== GL_UNSIGNED_SHORT_8_8_MESA
)) {
3701 if (!ctx
->Pack
.SwapBytes
)
3702 _mesa_swap2((GLushort
*) dest
, width
);
3704 else if (ctx
->Pack
.SwapBytes
) {
3705 _mesa_swap2((GLushort
*) dest
, width
);
3708 #if FEATURE_EXT_texture_sRGB
3709 else if (is_srgb_teximage(texImage
)) {
3710 /* no pixel transfer and no non-linear to linear conversion */
3711 const GLint comps
= texImage
->TexFormat
->TexelBytes
;
3712 const GLint rowstride
= comps
* texImage
->RowStride
;
3714 (const GLubyte
*) texImage
->Data
+ row
* rowstride
,
3715 comps
* width
* sizeof(GLubyte
));
3717 #endif /* FEATURE_EXT_texture_sRGB */
3719 /* general case: convert row to RGBA format */
3720 GLfloat rgba
[MAX_WIDTH
][4];
3722 for (col
= 0; col
< width
; col
++) {
3723 (*texImage
->FetchTexelf
)(texImage
, col
, row
, img
, rgba
[col
]);
3724 if (texImage
->TexFormat
->BaseFormat
== GL_ALPHA
) {
3725 rgba
[col
][RCOMP
] = 0.0;
3726 rgba
[col
][GCOMP
] = 0.0;
3727 rgba
[col
][BCOMP
] = 0.0;
3729 else if (texImage
->TexFormat
->BaseFormat
== GL_LUMINANCE
) {
3730 rgba
[col
][GCOMP
] = 0.0;
3731 rgba
[col
][BCOMP
] = 0.0;
3732 rgba
[col
][ACOMP
] = 1.0;
3734 else if (texImage
->TexFormat
->BaseFormat
== GL_LUMINANCE_ALPHA
) {
3735 rgba
[col
][GCOMP
] = 0.0;
3736 rgba
[col
][BCOMP
] = 0.0;
3738 else if (texImage
->TexFormat
->BaseFormat
== GL_INTENSITY
) {
3739 rgba
[col
][GCOMP
] = 0.0;
3740 rgba
[col
][BCOMP
] = 0.0;
3741 rgba
[col
][ACOMP
] = 1.0;
3744 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
,
3746 &ctx
->Pack
, 0x0 /*image xfer ops*/);
3752 if (ctx
->Pack
.BufferObj
->Name
) {
3753 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3754 ctx
->Pack
.BufferObj
);
3761 * This is the software fallback for Driver.GetCompressedTexImage().
3762 * All error checking will have been done before this routine is called.
3765 _mesa_get_compressed_teximage(GLcontext
*ctx
, GLenum target
, GLint level
,
3767 struct gl_texture_object
*texObj
,
3768 struct gl_texture_image
*texImage
)
3772 if (ctx
->Pack
.BufferObj
->Name
) {
3773 /* pack texture image into a PBO */
3775 if ((const GLubyte
*) img
+ texImage
->CompressedSize
>
3776 (const GLubyte
*) ctx
->Pack
.BufferObj
->Size
) {
3777 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3778 "glGetCompressedTexImage(invalid PBO access)");
3781 buf
= (GLubyte
*) ctx
->Driver
.MapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3783 ctx
->Pack
.BufferObj
);
3785 /* buffer is already mapped - that's an error */
3786 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3787 "glGetCompressedTexImage(PBO is mapped)");
3790 img
= ADD_POINTERS(buf
, img
);
3797 /* don't use texImage->CompressedSize since that may be padded out */
3798 size
= _mesa_compressed_texture_size(ctx
, texImage
->Width
, texImage
->Height
,
3800 texImage
->TexFormat
->MesaFormat
);
3802 /* just memcpy, no pixelstore or pixel transfer */
3803 _mesa_memcpy(img
, texImage
->Data
, size
);
3805 if (ctx
->Pack
.BufferObj
->Name
) {
3806 ctx
->Driver
.UnmapBuffer(ctx
, GL_PIXEL_PACK_BUFFER_EXT
,
3807 ctx
->Pack
.BufferObj
);