2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 2008-2009 VMware, Inc.
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
32 * The GL texture image functions in teximage.c basically just do
33 * error checking and data structure allocation. They in turn call
34 * device driver functions which actually copy/convert/store the user's
37 * However, most device drivers will be able to use the fallback functions
38 * in this file. That is, most drivers will have the following bit of
40 * ctx->Driver.TexImage = _mesa_store_teximage;
41 * ctx->Driver.TexSubImage = _mesa_store_texsubimage;
44 * Texture image processing is actually kind of complicated. We have to do:
45 * Format/type conversions
47 * pixel transfer (scale, bais, lookup, etc)
49 * These functions can handle most everything, including processing full
50 * images and sub-images.
55 #include "bufferobj.h"
56 #include "format_pack.h"
57 #include "format_utils.h"
65 #include "texcompress.h"
66 #include "texcompress_fxt1.h"
67 #include "texcompress_rgtc.h"
68 #include "texcompress_s3tc.h"
69 #include "texcompress_etc.h"
70 #include "texcompress_bptc.h"
74 #include "glformats.h"
75 #include "pixeltransfer.h"
76 #include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
77 #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
87 * Texture image storage function.
89 typedef GLboolean (*StoreTexImageFunc
)(TEXSTORE_PARAMS
);
90 static const GLubyte map_identity
[6] = { 0, 1, 2, 3, ZERO
, ONE
};
91 static const GLubyte map_3210
[6] = { 3, 2, 1, 0, ZERO
, ONE
};
92 static const GLubyte map_1032
[6] = { 1, 0, 3, 2, ZERO
, ONE
};
96 * Teximage storage routine for when a simple memcpy will do.
97 * No pixel transfer operations or special texel encodings allowed.
98 * 1D, 2D and 3D images supported.
101 memcpy_texture(struct gl_context
*ctx
,
103 mesa_format dstFormat
,
106 GLint srcWidth
, GLint srcHeight
, GLint srcDepth
,
107 GLenum srcFormat
, GLenum srcType
,
108 const GLvoid
*srcAddr
,
109 const struct gl_pixelstore_attrib
*srcPacking
)
111 const GLint srcRowStride
= _mesa_image_row_stride(srcPacking
, srcWidth
,
113 const GLint srcImageStride
= _mesa_image_image_stride(srcPacking
,
114 srcWidth
, srcHeight
, srcFormat
, srcType
);
115 const GLubyte
*srcImage
= (const GLubyte
*) _mesa_image_address(dimensions
,
116 srcPacking
, srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, 0, 0, 0);
117 const GLuint texelBytes
= _mesa_get_format_bytes(dstFormat
);
118 const GLint bytesPerRow
= srcWidth
* texelBytes
;
120 if (dstRowStride
== srcRowStride
&&
121 dstRowStride
== bytesPerRow
) {
122 /* memcpy image by image */
124 for (img
= 0; img
< srcDepth
; img
++) {
125 GLubyte
*dstImage
= dstSlices
[img
];
126 memcpy(dstImage
, srcImage
, bytesPerRow
* srcHeight
);
127 srcImage
+= srcImageStride
;
131 /* memcpy row by row */
133 for (img
= 0; img
< srcDepth
; img
++) {
134 const GLubyte
*srcRow
= srcImage
;
135 GLubyte
*dstRow
= dstSlices
[img
];
136 for (row
= 0; row
< srcHeight
; row
++) {
137 memcpy(dstRow
, srcRow
, bytesPerRow
);
138 dstRow
+= dstRowStride
;
139 srcRow
+= srcRowStride
;
141 srcImage
+= srcImageStride
;
148 * Store a 32-bit integer or float depth component texture image.
151 _mesa_texstore_z32(TEXSTORE_PARAMS
)
153 const GLuint depthScale
= 0xffffffff;
156 assert(dstFormat
== MESA_FORMAT_Z_UNORM32
||
157 dstFormat
== MESA_FORMAT_Z_FLOAT32
);
158 assert(_mesa_get_format_bytes(dstFormat
) == sizeof(GLuint
));
160 if (dstFormat
== MESA_FORMAT_Z_UNORM32
)
161 dstType
= GL_UNSIGNED_INT
;
168 for (img
= 0; img
< srcDepth
; img
++) {
169 GLubyte
*dstRow
= dstSlices
[img
];
170 for (row
= 0; row
< srcHeight
; row
++) {
171 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
172 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
173 _mesa_unpack_depth_span(ctx
, srcWidth
,
175 depthScale
, srcType
, src
, srcPacking
);
176 dstRow
+= dstRowStride
;
185 * Store a 24-bit integer depth component texture image.
188 _mesa_texstore_x8_z24(TEXSTORE_PARAMS
)
190 const GLuint depthScale
= 0xffffff;
193 assert(dstFormat
== MESA_FORMAT_Z24_UNORM_X8_UINT
);
198 for (img
= 0; img
< srcDepth
; img
++) {
199 GLubyte
*dstRow
= dstSlices
[img
];
200 for (row
= 0; row
< srcHeight
; row
++) {
201 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
202 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
203 _mesa_unpack_depth_span(ctx
, srcWidth
,
204 GL_UNSIGNED_INT
, (GLuint
*) dstRow
,
205 depthScale
, srcType
, src
, srcPacking
);
206 dstRow
+= dstRowStride
;
215 * Store a 24-bit integer depth component texture image.
218 _mesa_texstore_z24_x8(TEXSTORE_PARAMS
)
220 const GLuint depthScale
= 0xffffff;
223 assert(dstFormat
== MESA_FORMAT_X8_UINT_Z24_UNORM
);
228 for (img
= 0; img
< srcDepth
; img
++) {
229 GLubyte
*dstRow
= dstSlices
[img
];
230 for (row
= 0; row
< srcHeight
; row
++) {
231 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
232 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
233 GLuint
*dst
= (GLuint
*) dstRow
;
235 _mesa_unpack_depth_span(ctx
, srcWidth
,
236 GL_UNSIGNED_INT
, dst
,
237 depthScale
, srcType
, src
, srcPacking
);
238 for (i
= 0; i
< srcWidth
; i
++)
240 dstRow
+= dstRowStride
;
249 * Store a 16-bit integer depth component texture image.
252 _mesa_texstore_z16(TEXSTORE_PARAMS
)
254 const GLuint depthScale
= 0xffff;
256 assert(dstFormat
== MESA_FORMAT_Z_UNORM16
);
257 assert(_mesa_get_format_bytes(dstFormat
) == sizeof(GLushort
));
262 for (img
= 0; img
< srcDepth
; img
++) {
263 GLubyte
*dstRow
= dstSlices
[img
];
264 for (row
= 0; row
< srcHeight
; row
++) {
265 const GLvoid
*src
= _mesa_image_address(dims
, srcPacking
,
266 srcAddr
, srcWidth
, srcHeight
, srcFormat
, srcType
, img
, row
, 0);
267 GLushort
*dst16
= (GLushort
*) dstRow
;
268 _mesa_unpack_depth_span(ctx
, srcWidth
,
269 GL_UNSIGNED_SHORT
, dst16
, depthScale
,
270 srcType
, src
, srcPacking
);
271 dstRow
+= dstRowStride
;
280 * Texstore for _mesa_texformat_ycbcr or _mesa_texformat_ycbcr_REV.
283 _mesa_texstore_ycbcr(TEXSTORE_PARAMS
)
285 const GLboolean littleEndian
= _mesa_little_endian();
287 (void) ctx
; (void) dims
; (void) baseInternalFormat
;
289 assert((dstFormat
== MESA_FORMAT_YCBCR
) ||
290 (dstFormat
== MESA_FORMAT_YCBCR_REV
));
291 assert(_mesa_get_format_bytes(dstFormat
) == 2);
292 assert(ctx
->Extensions
.MESA_ycbcr_texture
);
293 assert(srcFormat
== GL_YCBCR_MESA
);
294 assert((srcType
== GL_UNSIGNED_SHORT_8_8_MESA
) ||
295 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
));
296 assert(baseInternalFormat
== GL_YCBCR_MESA
);
298 /* always just memcpy since no pixel transfer ops apply */
299 memcpy_texture(ctx
, dims
,
301 dstRowStride
, dstSlices
,
302 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
303 srcAddr
, srcPacking
);
305 /* Check if we need byte swapping */
306 /* XXX the logic here _might_ be wrong */
307 if (srcPacking
->SwapBytes
^
308 (srcType
== GL_UNSIGNED_SHORT_8_8_REV_MESA
) ^
309 (dstFormat
== MESA_FORMAT_YCBCR_REV
) ^
312 for (img
= 0; img
< srcDepth
; img
++) {
313 GLubyte
*dstRow
= dstSlices
[img
];
314 for (row
= 0; row
< srcHeight
; row
++) {
315 _mesa_swap2((GLushort
*) dstRow
, srcWidth
);
316 dstRow
+= dstRowStride
;
325 * Store a combined depth/stencil texture image.
328 _mesa_texstore_z24_s8(TEXSTORE_PARAMS
)
330 const GLuint depthScale
= 0xffffff;
331 const GLint srcRowStride
332 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
);
334 GLuint
*depth
= malloc(srcWidth
* sizeof(GLuint
));
335 GLubyte
*stencil
= malloc(srcWidth
* sizeof(GLubyte
));
337 assert(dstFormat
== MESA_FORMAT_S8_UINT_Z24_UNORM
);
338 assert(srcFormat
== GL_DEPTH_STENCIL_EXT
||
339 srcFormat
== GL_DEPTH_COMPONENT
||
340 srcFormat
== GL_STENCIL_INDEX
);
341 assert(srcFormat
!= GL_DEPTH_STENCIL_EXT
||
342 srcType
== GL_UNSIGNED_INT_24_8_EXT
||
343 srcType
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
);
345 if (!depth
|| !stencil
) {
351 /* In case we only upload depth we need to preserve the stencil */
352 for (img
= 0; img
< srcDepth
; img
++) {
353 GLuint
*dstRow
= (GLuint
*) dstSlices
[img
];
355 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
359 for (row
= 0; row
< srcHeight
; row
++) {
361 GLboolean keepdepth
= GL_FALSE
, keepstencil
= GL_FALSE
;
363 if (srcFormat
== GL_DEPTH_COMPONENT
) { /* preserve stencil */
364 keepstencil
= GL_TRUE
;
366 else if (srcFormat
== GL_STENCIL_INDEX
) { /* preserve depth */
370 if (keepdepth
== GL_FALSE
)
371 /* the 24 depth bits will be in the low position: */
372 _mesa_unpack_depth_span(ctx
, srcWidth
,
373 GL_UNSIGNED_INT
, /* dst type */
374 keepstencil
? depth
: dstRow
, /* dst addr */
376 srcType
, src
, srcPacking
);
378 if (keepstencil
== GL_FALSE
)
379 /* get the 8-bit stencil values */
380 _mesa_unpack_stencil_span(ctx
, srcWidth
,
381 GL_UNSIGNED_BYTE
, /* dst type */
382 stencil
, /* dst addr */
383 srcType
, src
, srcPacking
,
384 ctx
->_ImageTransferState
);
386 for (i
= 0; i
< srcWidth
; i
++) {
388 dstRow
[i
] = depth
[i
] << 8 | (dstRow
[i
] & 0x000000FF);
390 dstRow
[i
] = (dstRow
[i
] & 0xFFFFFF00) | (stencil
[i
] & 0xFF);
393 dstRow
+= dstRowStride
/ sizeof(GLuint
);
404 * Store a combined depth/stencil texture image.
407 _mesa_texstore_s8_z24(TEXSTORE_PARAMS
)
409 const GLuint depthScale
= 0xffffff;
410 const GLint srcRowStride
411 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
);
416 assert(dstFormat
== MESA_FORMAT_Z24_UNORM_S8_UINT
);
417 assert(srcFormat
== GL_DEPTH_STENCIL_EXT
||
418 srcFormat
== GL_DEPTH_COMPONENT
||
419 srcFormat
== GL_STENCIL_INDEX
);
420 assert(srcFormat
!= GL_DEPTH_STENCIL_EXT
||
421 srcType
== GL_UNSIGNED_INT_24_8_EXT
||
422 srcType
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
);
424 depth
= malloc(srcWidth
* sizeof(GLuint
));
425 stencil
= malloc(srcWidth
* sizeof(GLubyte
));
427 if (!depth
|| !stencil
) {
433 for (img
= 0; img
< srcDepth
; img
++) {
434 GLuint
*dstRow
= (GLuint
*) dstSlices
[img
];
436 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
440 for (row
= 0; row
< srcHeight
; row
++) {
442 GLboolean keepdepth
= GL_FALSE
, keepstencil
= GL_FALSE
;
444 if (srcFormat
== GL_DEPTH_COMPONENT
) { /* preserve stencil */
445 keepstencil
= GL_TRUE
;
447 else if (srcFormat
== GL_STENCIL_INDEX
) { /* preserve depth */
451 if (keepdepth
== GL_FALSE
)
452 /* the 24 depth bits will be in the low position: */
453 _mesa_unpack_depth_span(ctx
, srcWidth
,
454 GL_UNSIGNED_INT
, /* dst type */
455 keepstencil
? depth
: dstRow
, /* dst addr */
457 srcType
, src
, srcPacking
);
459 if (keepstencil
== GL_FALSE
)
460 /* get the 8-bit stencil values */
461 _mesa_unpack_stencil_span(ctx
, srcWidth
,
462 GL_UNSIGNED_BYTE
, /* dst type */
463 stencil
, /* dst addr */
464 srcType
, src
, srcPacking
,
465 ctx
->_ImageTransferState
);
467 /* merge stencil values into depth values */
468 for (i
= 0; i
< srcWidth
; i
++) {
470 dstRow
[i
] = depth
[i
] | (dstRow
[i
] & 0xFF000000);
472 dstRow
[i
] = (dstRow
[i
] & 0xFFFFFF) | (stencil
[i
] << 24);
476 dstRow
+= dstRowStride
/ sizeof(GLuint
);
488 * Store simple 8-bit/value stencil texture data.
491 _mesa_texstore_s8(TEXSTORE_PARAMS
)
493 assert(dstFormat
== MESA_FORMAT_S_UINT8
);
494 assert(srcFormat
== GL_STENCIL_INDEX
);
497 const GLint srcRowStride
498 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
);
500 GLubyte
*stencil
= malloc(srcWidth
* sizeof(GLubyte
));
505 for (img
= 0; img
< srcDepth
; img
++) {
506 GLubyte
*dstRow
= dstSlices
[img
];
508 = (const GLubyte
*) _mesa_image_address(dims
, srcPacking
, srcAddr
,
512 for (row
= 0; row
< srcHeight
; row
++) {
515 /* get the 8-bit stencil values */
516 _mesa_unpack_stencil_span(ctx
, srcWidth
,
517 GL_UNSIGNED_BYTE
, /* dst type */
518 stencil
, /* dst addr */
519 srcType
, src
, srcPacking
,
520 ctx
->_ImageTransferState
);
521 /* merge stencil values into depth values */
522 for (i
= 0; i
< srcWidth
; i
++)
523 dstRow
[i
] = stencil
[i
];
526 dstRow
+= dstRowStride
/ sizeof(GLubyte
);
538 _mesa_texstore_z32f_x24s8(TEXSTORE_PARAMS
)
541 const GLint srcRowStride
542 = _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
)
545 assert(dstFormat
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
);
546 assert(srcFormat
== GL_DEPTH_STENCIL
||
547 srcFormat
== GL_DEPTH_COMPONENT
||
548 srcFormat
== GL_STENCIL_INDEX
);
549 assert(srcFormat
!= GL_DEPTH_STENCIL
||
550 srcType
== GL_UNSIGNED_INT_24_8
||
551 srcType
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
);
553 /* In case we only upload depth we need to preserve the stencil */
554 for (img
= 0; img
< srcDepth
; img
++) {
555 uint64_t *dstRow
= (uint64_t *) dstSlices
[img
];
557 = (const uint64_t *) _mesa_image_address(dims
, srcPacking
, srcAddr
,
561 for (row
= 0; row
< srcHeight
; row
++) {
562 /* The unpack functions with:
563 * dstType = GL_FLOAT_32_UNSIGNED_INT_24_8_REV
564 * only write their own dword, so the other dword (stencil
565 * or depth) is preserved. */
566 if (srcFormat
!= GL_STENCIL_INDEX
)
567 _mesa_unpack_depth_span(ctx
, srcWidth
,
568 GL_FLOAT_32_UNSIGNED_INT_24_8_REV
, /* dst type */
569 dstRow
, /* dst addr */
570 ~0U, srcType
, src
, srcPacking
);
572 if (srcFormat
!= GL_DEPTH_COMPONENT
)
573 _mesa_unpack_stencil_span(ctx
, srcWidth
,
574 GL_FLOAT_32_UNSIGNED_INT_24_8_REV
, /* dst type */
575 dstRow
, /* dst addr */
576 srcType
, src
, srcPacking
,
577 ctx
->_ImageTransferState
);
580 dstRow
+= dstRowStride
/ sizeof(uint64_t);
587 texstore_depth_stencil(TEXSTORE_PARAMS
)
589 static StoreTexImageFunc table
[MESA_FORMAT_COUNT
];
590 static GLboolean initialized
= GL_FALSE
;
593 memset(table
, 0, sizeof table
);
595 table
[MESA_FORMAT_S8_UINT_Z24_UNORM
] = _mesa_texstore_z24_s8
;
596 table
[MESA_FORMAT_Z24_UNORM_S8_UINT
] = _mesa_texstore_s8_z24
;
597 table
[MESA_FORMAT_Z_UNORM16
] = _mesa_texstore_z16
;
598 table
[MESA_FORMAT_Z24_UNORM_X8_UINT
] = _mesa_texstore_x8_z24
;
599 table
[MESA_FORMAT_X8_UINT_Z24_UNORM
] = _mesa_texstore_z24_x8
;
600 table
[MESA_FORMAT_Z_UNORM32
] = _mesa_texstore_z32
;
601 table
[MESA_FORMAT_S_UINT8
] = _mesa_texstore_s8
;
602 table
[MESA_FORMAT_Z_FLOAT32
] = _mesa_texstore_z32
;
603 table
[MESA_FORMAT_Z32_FLOAT_S8X24_UINT
] = _mesa_texstore_z32f_x24s8
;
605 initialized
= GL_TRUE
;
608 assert(table
[dstFormat
]);
609 return table
[dstFormat
](ctx
, dims
, baseInternalFormat
,
610 dstFormat
, dstRowStride
, dstSlices
,
611 srcWidth
, srcHeight
, srcDepth
,
612 srcFormat
, srcType
, srcAddr
, srcPacking
);
616 texstore_compressed(TEXSTORE_PARAMS
)
618 static StoreTexImageFunc table
[MESA_FORMAT_COUNT
];
619 static GLboolean initialized
= GL_FALSE
;
622 memset(table
, 0, sizeof table
);
624 table
[MESA_FORMAT_SRGB_DXT1
] = _mesa_texstore_rgb_dxt1
;
625 table
[MESA_FORMAT_SRGBA_DXT1
] = _mesa_texstore_rgba_dxt1
;
626 table
[MESA_FORMAT_SRGBA_DXT3
] = _mesa_texstore_rgba_dxt3
;
627 table
[MESA_FORMAT_SRGBA_DXT5
] = _mesa_texstore_rgba_dxt5
;
628 table
[MESA_FORMAT_RGB_FXT1
] = _mesa_texstore_rgb_fxt1
;
629 table
[MESA_FORMAT_RGBA_FXT1
] = _mesa_texstore_rgba_fxt1
;
630 table
[MESA_FORMAT_RGB_DXT1
] = _mesa_texstore_rgb_dxt1
;
631 table
[MESA_FORMAT_RGBA_DXT1
] = _mesa_texstore_rgba_dxt1
;
632 table
[MESA_FORMAT_RGBA_DXT3
] = _mesa_texstore_rgba_dxt3
;
633 table
[MESA_FORMAT_RGBA_DXT5
] = _mesa_texstore_rgba_dxt5
;
634 table
[MESA_FORMAT_R_RGTC1_UNORM
] = _mesa_texstore_red_rgtc1
;
635 table
[MESA_FORMAT_R_RGTC1_SNORM
] = _mesa_texstore_signed_red_rgtc1
;
636 table
[MESA_FORMAT_RG_RGTC2_UNORM
] = _mesa_texstore_rg_rgtc2
;
637 table
[MESA_FORMAT_RG_RGTC2_SNORM
] = _mesa_texstore_signed_rg_rgtc2
;
638 table
[MESA_FORMAT_L_LATC1_UNORM
] = _mesa_texstore_red_rgtc1
;
639 table
[MESA_FORMAT_L_LATC1_SNORM
] = _mesa_texstore_signed_red_rgtc1
;
640 table
[MESA_FORMAT_LA_LATC2_UNORM
] = _mesa_texstore_rg_rgtc2
;
641 table
[MESA_FORMAT_LA_LATC2_SNORM
] = _mesa_texstore_signed_rg_rgtc2
;
642 table
[MESA_FORMAT_ETC1_RGB8
] = _mesa_texstore_etc1_rgb8
;
643 table
[MESA_FORMAT_ETC2_RGB8
] = _mesa_texstore_etc2_rgb8
;
644 table
[MESA_FORMAT_ETC2_SRGB8
] = _mesa_texstore_etc2_srgb8
;
645 table
[MESA_FORMAT_ETC2_RGBA8_EAC
] = _mesa_texstore_etc2_rgba8_eac
;
646 table
[MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC
] = _mesa_texstore_etc2_srgb8_alpha8_eac
;
647 table
[MESA_FORMAT_ETC2_R11_EAC
] = _mesa_texstore_etc2_r11_eac
;
648 table
[MESA_FORMAT_ETC2_RG11_EAC
] = _mesa_texstore_etc2_rg11_eac
;
649 table
[MESA_FORMAT_ETC2_SIGNED_R11_EAC
] = _mesa_texstore_etc2_signed_r11_eac
;
650 table
[MESA_FORMAT_ETC2_SIGNED_RG11_EAC
] = _mesa_texstore_etc2_signed_rg11_eac
;
651 table
[MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1
] =
652 _mesa_texstore_etc2_rgb8_punchthrough_alpha1
;
653 table
[MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1
] =
654 _mesa_texstore_etc2_srgb8_punchthrough_alpha1
;
656 table
[MESA_FORMAT_BPTC_RGBA_UNORM
] =
657 _mesa_texstore_bptc_rgba_unorm
;
658 table
[MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM
] =
659 _mesa_texstore_bptc_rgba_unorm
;
660 table
[MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT
] =
661 _mesa_texstore_bptc_rgb_signed_float
;
662 table
[MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT
] =
663 _mesa_texstore_bptc_rgb_unsigned_float
;
665 initialized
= GL_TRUE
;
668 assert(table
[dstFormat
]);
669 return table
[dstFormat
](ctx
, dims
, baseInternalFormat
,
670 dstFormat
, dstRowStride
, dstSlices
,
671 srcWidth
, srcHeight
, srcDepth
,
672 srcFormat
, srcType
, srcAddr
, srcPacking
);
676 texstore_rgba(TEXSTORE_PARAMS
)
678 void *tempImage
= NULL
, *tempRGBA
= NULL
;
679 int srcRowStride
, img
;
681 uint32_t srcMesaFormat
;
682 uint8_t rebaseSwizzle
[4];
684 bool transferOpsDone
= false;
686 /* We have to handle MESA_FORMAT_YCBCR manually because it is a special case
687 * and _mesa_format_convert does not support it. In this case the we only
688 * allow conversions between YCBCR formats and it is mostly a memcpy.
690 if (dstFormat
== MESA_FORMAT_YCBCR
|| dstFormat
== MESA_FORMAT_YCBCR_REV
) {
691 return _mesa_texstore_ycbcr(ctx
, dims
, baseInternalFormat
,
692 dstFormat
, dstRowStride
, dstSlices
,
693 srcWidth
, srcHeight
, srcDepth
,
694 srcFormat
, srcType
, srcAddr
,
698 /* We have to deal with GL_COLOR_INDEX manually because
699 * _mesa_format_convert does not handle this format. So what we do here is
700 * convert it to RGBA ubyte first and then convert from that to dst as usual.
702 if (srcFormat
== GL_COLOR_INDEX
) {
703 /* Notice that this will already handle byte swapping if necessary */
705 _mesa_unpack_color_index_to_rgba_ubyte(ctx
, dims
,
706 srcAddr
, srcFormat
, srcType
,
707 srcWidth
, srcHeight
, srcDepth
,
709 ctx
->_ImageTransferState
);
713 /* _mesa_unpack_color_index_to_rgba_ubyte has handled transferops
716 transferOpsDone
= true;
718 /* Now we only have to adjust our src info for a conversion from
719 * the RGBA ubyte and then we continue as usual.
723 srcType
= GL_UNSIGNED_BYTE
;
724 } else if (srcPacking
->SwapBytes
) {
725 /* We have to handle byte-swapping scenarios before calling
726 * _mesa_format_convert
728 GLint swapSize
= _mesa_sizeof_packed_type(srcType
);
729 if (swapSize
== 2 || swapSize
== 4) {
730 int imageStride
= _mesa_image_image_stride(srcPacking
, srcWidth
, srcHeight
, srcFormat
, srcType
);
731 int bufferSize
= imageStride
* srcDepth
;
736 tempImage
= malloc(bufferSize
);
741 for (layer
= 0; layer
< srcDepth
; layer
++) {
742 _mesa_swap_bytes_2d_image(srcFormat
, srcType
,
754 _mesa_image_row_stride(srcPacking
, srcWidth
, srcFormat
, srcType
);
756 srcMesaFormat
= _mesa_format_from_format_and_type(srcFormat
, srcType
);
757 dstFormat
= _mesa_get_srgb_format_linear(dstFormat
);
759 /* If we have transferOps then we need to convert to RGBA float first,
760 then apply transferOps, then do the conversion to dst
762 if (!transferOpsDone
&&
763 _mesa_texstore_needs_transfer_ops(ctx
, baseInternalFormat
, dstFormat
)) {
764 /* Allocate RGBA float image */
765 int elementCount
= srcWidth
* srcHeight
* srcDepth
;
766 tempRGBA
= malloc(4 * elementCount
* sizeof(float));
773 /* Convert from src to RGBA float */
774 src
= (GLubyte
*) srcAddr
;
775 dst
= (GLubyte
*) tempRGBA
;
776 for (img
= 0; img
< srcDepth
; img
++) {
777 _mesa_format_convert(dst
, RGBA32_FLOAT
, 4 * srcWidth
* sizeof(float),
778 src
, srcMesaFormat
, srcRowStride
,
779 srcWidth
, srcHeight
, NULL
);
780 src
+= srcHeight
* srcRowStride
;
781 dst
+= srcHeight
* 4 * srcWidth
* sizeof(float);
784 /* Apply transferOps */
785 _mesa_apply_rgba_transfer_ops(ctx
, ctx
->_ImageTransferState
, elementCount
,
786 (float(*)[4]) tempRGBA
);
788 /* Now we have to adjust our src info for a conversion from
789 * the RGBA float image and then we continue as usual.
794 srcRowStride
= srcWidth
* 4 * sizeof(float);
795 srcMesaFormat
= RGBA32_FLOAT
;
796 srcPacking
= &ctx
->DefaultPacking
;
800 _mesa_image_address(dims
, srcPacking
, srcAddr
, srcWidth
, srcHeight
,
801 srcFormat
, srcType
, 0, 0, 0);
803 if (_mesa_get_format_base_format(dstFormat
) != baseInternalFormat
) {
805 _mesa_compute_rgba2base2rgba_component_mapping(baseInternalFormat
,
811 for (img
= 0; img
< srcDepth
; img
++) {
812 _mesa_format_convert(dstSlices
[img
], dstFormat
, dstRowStride
,
813 src
, srcMesaFormat
, srcRowStride
,
815 needRebase
? rebaseSwizzle
: NULL
);
816 src
+= srcHeight
* srcRowStride
;
826 _mesa_texstore_needs_transfer_ops(struct gl_context
*ctx
,
827 GLenum baseInternalFormat
,
828 mesa_format dstFormat
)
832 /* There are different rules depending on the base format. */
833 switch (baseInternalFormat
) {
834 case GL_DEPTH_COMPONENT
:
835 case GL_DEPTH_STENCIL
:
836 return ctx
->Pixel
.DepthScale
!= 1.0f
||
837 ctx
->Pixel
.DepthBias
!= 0.0f
;
839 case GL_STENCIL_INDEX
:
844 * Pixel transfer ops (scale, bias, table lookup) do not apply
845 * to integer formats.
847 dstType
= _mesa_get_format_datatype(dstFormat
);
849 return dstType
!= GL_INT
&& dstType
!= GL_UNSIGNED_INT
&&
850 ctx
->_ImageTransferState
;
856 _mesa_texstore_can_use_memcpy(struct gl_context
*ctx
,
857 GLenum baseInternalFormat
, mesa_format dstFormat
,
858 GLenum srcFormat
, GLenum srcType
,
859 const struct gl_pixelstore_attrib
*srcPacking
)
861 if (_mesa_texstore_needs_transfer_ops(ctx
, baseInternalFormat
, dstFormat
)) {
865 /* The base internal format and the base Mesa format must match. */
866 if (baseInternalFormat
!= _mesa_get_format_base_format(dstFormat
)) {
870 /* The Mesa format must match the input format and type. */
871 if (!_mesa_format_matches_format_and_type(dstFormat
, srcFormat
, srcType
,
872 srcPacking
->SwapBytes
, NULL
)) {
876 /* Depth texture data needs clamping in following cases:
877 * - Floating point dstFormat with signed srcType: clamp to [0.0, 1.0].
878 * - Fixed point dstFormat with signed srcType: clamp to [0, 2^n -1].
880 * All the cases except one (float dstFormat with float srcType) are ruled
881 * out by _mesa_format_matches_format_and_type() check above. Handle the
882 * remaining case here.
884 if ((baseInternalFormat
== GL_DEPTH_COMPONENT
||
885 baseInternalFormat
== GL_DEPTH_STENCIL
) &&
886 (srcType
== GL_FLOAT
||
887 srcType
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)) {
895 _mesa_texstore_memcpy(TEXSTORE_PARAMS
)
897 if (!_mesa_texstore_can_use_memcpy(ctx
, baseInternalFormat
, dstFormat
,
898 srcFormat
, srcType
, srcPacking
)) {
902 memcpy_texture(ctx
, dims
,
904 dstRowStride
, dstSlices
,
905 srcWidth
, srcHeight
, srcDepth
, srcFormat
, srcType
,
906 srcAddr
, srcPacking
);
910 * Store user data into texture memory.
911 * Called via glTex[Sub]Image1/2/3D()
912 * \return GL_TRUE for success, GL_FALSE for failure (out of memory).
915 _mesa_texstore(TEXSTORE_PARAMS
)
917 if (_mesa_texstore_memcpy(ctx
, dims
, baseInternalFormat
,
919 dstRowStride
, dstSlices
,
920 srcWidth
, srcHeight
, srcDepth
,
921 srcFormat
, srcType
, srcAddr
, srcPacking
)) {
925 if (_mesa_is_depth_or_stencil_format(baseInternalFormat
)) {
926 return texstore_depth_stencil(ctx
, dims
, baseInternalFormat
,
927 dstFormat
, dstRowStride
, dstSlices
,
928 srcWidth
, srcHeight
, srcDepth
,
929 srcFormat
, srcType
, srcAddr
, srcPacking
);
930 } else if (_mesa_is_format_compressed(dstFormat
)) {
931 return texstore_compressed(ctx
, dims
, baseInternalFormat
,
932 dstFormat
, dstRowStride
, dstSlices
,
933 srcWidth
, srcHeight
, srcDepth
,
934 srcFormat
, srcType
, srcAddr
, srcPacking
);
936 return texstore_rgba(ctx
, dims
, baseInternalFormat
,
937 dstFormat
, dstRowStride
, dstSlices
,
938 srcWidth
, srcHeight
, srcDepth
,
939 srcFormat
, srcType
, srcAddr
, srcPacking
);
945 * Normally, we'll only _write_ texel data to a texture when we map it.
946 * But if the user is providing depth or stencil values and the texture
947 * image is a combined depth/stencil format, we'll actually read from
948 * the texture buffer too (in order to insert the depth or stencil values.
949 * \param userFormat the user-provided image format
950 * \param texFormat the destination texture format
953 get_read_write_mode(GLenum userFormat
, mesa_format texFormat
)
955 if ((userFormat
== GL_STENCIL_INDEX
|| userFormat
== GL_DEPTH_COMPONENT
)
956 && _mesa_get_format_base_format(texFormat
) == GL_DEPTH_STENCIL
)
957 return GL_MAP_READ_BIT
| GL_MAP_WRITE_BIT
;
959 return GL_MAP_WRITE_BIT
| GL_MAP_INVALIDATE_RANGE_BIT
;
964 * Helper function for storing 1D, 2D, 3D whole and subimages into texture
966 * The source of the image data may be user memory or a PBO. In the later
967 * case, we'll map the PBO, copy from it, then unmap it.
970 store_texsubimage(struct gl_context
*ctx
,
971 struct gl_texture_image
*texImage
,
972 GLint xoffset
, GLint yoffset
, GLint zoffset
,
973 GLint width
, GLint height
, GLint depth
,
974 GLenum format
, GLenum type
, const GLvoid
*pixels
,
975 const struct gl_pixelstore_attrib
*packing
,
979 const GLbitfield mapMode
= get_read_write_mode(format
, texImage
->TexFormat
);
980 const GLenum target
= texImage
->TexObject
->Target
;
981 GLboolean success
= GL_FALSE
;
982 GLuint dims
, slice
, numSlices
= 1, sliceOffset
= 0;
983 GLint srcImageStride
= 0;
986 assert(xoffset
+ width
<= texImage
->Width
);
987 assert(yoffset
+ height
<= texImage
->Height
);
988 assert(zoffset
+ depth
<= texImage
->Depth
);
994 case GL_TEXTURE_2D_ARRAY
:
995 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1003 /* get pointer to src pixels (may be in a pbo which we'll map here) */
1004 src
= (const GLubyte
*)
1005 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
,
1006 format
, type
, pixels
, packing
, caller
);
1010 /* compute slice info (and do some sanity checks) */
1013 case GL_TEXTURE_2D_MULTISAMPLE
:
1014 case GL_TEXTURE_RECTANGLE
:
1015 case GL_TEXTURE_CUBE_MAP
:
1016 case GL_TEXTURE_EXTERNAL_OES
:
1017 /* one image slice, nothing special needs to be done */
1020 assert(height
== 1);
1022 assert(yoffset
== 0);
1023 assert(zoffset
== 0);
1025 case GL_TEXTURE_1D_ARRAY
:
1027 assert(zoffset
== 0);
1029 sliceOffset
= yoffset
;
1032 srcImageStride
= _mesa_image_row_stride(packing
, width
, format
, type
);
1034 case GL_TEXTURE_2D_ARRAY
:
1035 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1037 sliceOffset
= zoffset
;
1040 srcImageStride
= _mesa_image_image_stride(packing
, width
, height
,
1044 /* we'll store 3D images as a series of slices */
1046 sliceOffset
= zoffset
;
1047 srcImageStride
= _mesa_image_image_stride(packing
, width
, height
,
1050 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1052 sliceOffset
= zoffset
;
1053 srcImageStride
= _mesa_image_image_stride(packing
, width
, height
,
1057 _mesa_warning(ctx
, "Unexpected target 0x%x in store_texsubimage()", target
);
1061 assert(numSlices
== 1 || srcImageStride
!= 0);
1063 for (slice
= 0; slice
< numSlices
; slice
++) {
1067 ctx
->Driver
.MapTextureImage(ctx
, texImage
,
1068 slice
+ sliceOffset
,
1069 xoffset
, yoffset
, width
, height
,
1070 mapMode
, &dstMap
, &dstRowStride
);
1072 /* Note: we're only storing a 2D (or 1D) slice at a time but we need
1073 * to pass the right 'dims' value so that GL_UNPACK_SKIP_IMAGES is
1074 * used for 3D images.
1076 success
= _mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1077 texImage
->TexFormat
,
1080 width
, height
, 1, /* w, h, d */
1081 format
, type
, src
, packing
);
1083 ctx
->Driver
.UnmapTextureImage(ctx
, texImage
, slice
+ sliceOffset
);
1086 src
+= srcImageStride
;
1093 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", caller
);
1095 _mesa_unmap_teximage_pbo(ctx
, packing
);
1101 * Fallback code for ctx->Driver.TexImage().
1102 * Basically, allocate storage for the texture image, then copy the
1103 * user's image into it.
1106 _mesa_store_teximage(struct gl_context
*ctx
,
1108 struct gl_texture_image
*texImage
,
1109 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1110 const struct gl_pixelstore_attrib
*packing
)
1112 assert(dims
== 1 || dims
== 2 || dims
== 3);
1114 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
1117 /* allocate storage for texture data */
1118 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
1119 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
1123 store_texsubimage(ctx
, texImage
,
1124 0, 0, 0, texImage
->Width
, texImage
->Height
, texImage
->Depth
,
1125 format
, type
, pixels
, packing
, "glTexImage");
1130 * Fallback for Driver.TexSubImage().
1133 _mesa_store_texsubimage(struct gl_context
*ctx
, GLuint dims
,
1134 struct gl_texture_image
*texImage
,
1135 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1136 GLint width
, GLint height
, GLint depth
,
1137 GLenum format
, GLenum type
, const void *pixels
,
1138 const struct gl_pixelstore_attrib
*packing
)
1140 store_texsubimage(ctx
, texImage
,
1141 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
1142 format
, type
, pixels
, packing
, "glTexSubImage");
1146 clear_image_to_zero(GLubyte
*dstMap
, GLint dstRowStride
,
1147 GLsizei width
, GLsizei height
,
1148 GLsizei clearValueSize
)
1152 for (y
= 0; y
< height
; y
++) {
1153 memset(dstMap
, 0, clearValueSize
* width
);
1154 dstMap
+= dstRowStride
;
1159 clear_image_to_value(GLubyte
*dstMap
, GLint dstRowStride
,
1160 GLsizei width
, GLsizei height
,
1161 const GLvoid
*clearValue
,
1162 GLsizei clearValueSize
)
1166 for (y
= 0; y
< height
; y
++) {
1167 for (x
= 0; x
< width
; x
++) {
1168 memcpy(dstMap
, clearValue
, clearValueSize
);
1169 dstMap
+= clearValueSize
;
1171 dstMap
+= dstRowStride
- clearValueSize
* width
;
1176 * Fallback for Driver.ClearTexSubImage().
1179 _mesa_store_cleartexsubimage(struct gl_context
*ctx
,
1180 struct gl_texture_image
*texImage
,
1181 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1182 GLsizei width
, GLsizei height
, GLsizei depth
,
1183 const GLvoid
*clearValue
)
1187 GLsizeiptr clearValueSize
;
1190 clearValueSize
= _mesa_get_format_bytes(texImage
->TexFormat
);
1192 for (z
= 0; z
< depth
; z
++) {
1193 ctx
->Driver
.MapTextureImage(ctx
, texImage
,
1194 z
+ zoffset
, xoffset
, yoffset
,
1197 &dstMap
, &dstRowStride
);
1198 if (dstMap
== NULL
) {
1199 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glClearTex*Image");
1204 clear_image_to_value(dstMap
, dstRowStride
,
1209 clear_image_to_zero(dstMap
, dstRowStride
,
1214 ctx
->Driver
.UnmapTextureImage(ctx
, texImage
, z
+ zoffset
);
1219 * Fallback for Driver.CompressedTexImage()
1222 _mesa_store_compressed_teximage(struct gl_context
*ctx
, GLuint dims
,
1223 struct gl_texture_image
*texImage
,
1224 GLsizei imageSize
, const GLvoid
*data
)
1226 /* only 2D and 3D compressed images are supported at this time */
1228 _mesa_problem(ctx
, "Unexpected glCompressedTexImage1D call");
1232 /* This is pretty simple, because unlike the general texstore path we don't
1233 * have to worry about the usual image unpacking or image transfer
1237 assert(texImage
->Width
> 0);
1238 assert(texImage
->Height
> 0);
1239 assert(texImage
->Depth
> 0);
1241 /* allocate storage for texture data */
1242 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
1243 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexImage%uD", dims
);
1247 _mesa_store_compressed_texsubimage(ctx
, dims
, texImage
,
1249 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
1250 texImage
->TexFormat
,
1256 * Compute compressed_pixelstore parameters for copying compressed
1258 * \param dims number of texture image dimensions: 1, 2 or 3
1259 * \param texFormat the compressed texture format
1260 * \param width, height, depth size of image to copy
1261 * \param packing pixelstore parameters describing user-space image packing
1262 * \param store returns the compressed_pixelstore parameters
1265 _mesa_compute_compressed_pixelstore(GLuint dims
, mesa_format texFormat
,
1266 GLsizei width
, GLsizei height
,
1268 const struct gl_pixelstore_attrib
*packing
,
1269 struct compressed_pixelstore
*store
)
1273 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
1275 store
->SkipBytes
= 0;
1276 store
->TotalBytesPerRow
= store
->CopyBytesPerRow
=
1277 _mesa_format_row_stride(texFormat
, width
);
1278 store
->TotalRowsPerSlice
= store
->CopyRowsPerSlice
=
1279 (height
+ bh
- 1) / bh
;
1280 store
->CopySlices
= depth
;
1282 if (packing
->CompressedBlockWidth
&&
1283 packing
->CompressedBlockSize
) {
1285 bw
= packing
->CompressedBlockWidth
;
1287 if (packing
->RowLength
) {
1288 store
->TotalBytesPerRow
= packing
->CompressedBlockSize
*
1289 ((packing
->RowLength
+ bw
- 1) / bw
);
1292 store
->SkipBytes
+= packing
->SkipPixels
* packing
->CompressedBlockSize
/ bw
;
1295 if (dims
> 1 && packing
->CompressedBlockHeight
&&
1296 packing
->CompressedBlockSize
) {
1298 bh
= packing
->CompressedBlockHeight
;
1300 store
->SkipBytes
+= packing
->SkipRows
* store
->TotalBytesPerRow
/ bh
;
1301 store
->CopyRowsPerSlice
= (height
+ bh
- 1) / bh
; /* rows in blocks */
1303 if (packing
->ImageHeight
) {
1304 store
->TotalRowsPerSlice
= (packing
->ImageHeight
+ bh
- 1) / bh
;
1308 if (dims
> 2 && packing
->CompressedBlockDepth
&&
1309 packing
->CompressedBlockSize
) {
1311 int bd
= packing
->CompressedBlockDepth
;
1313 store
->SkipBytes
+= packing
->SkipImages
* store
->TotalBytesPerRow
*
1314 store
->TotalRowsPerSlice
/ bd
;
1320 * Fallback for Driver.CompressedTexSubImage()
1323 _mesa_store_compressed_texsubimage(struct gl_context
*ctx
, GLuint dims
,
1324 struct gl_texture_image
*texImage
,
1325 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1326 GLsizei width
, GLsizei height
, GLsizei depth
,
1328 GLsizei imageSize
, const GLvoid
*data
)
1330 struct compressed_pixelstore store
;
1337 _mesa_problem(ctx
, "Unexpected 1D compressed texsubimage call");
1341 _mesa_compute_compressed_pixelstore(dims
, texImage
->TexFormat
,
1342 width
, height
, depth
,
1343 &ctx
->Unpack
, &store
);
1345 /* get pointer to src pixels (may be in a pbo which we'll map here) */
1346 data
= _mesa_validate_pbo_compressed_teximage(ctx
, dims
, imageSize
, data
,
1348 "glCompressedTexSubImage");
1352 src
= (const GLubyte
*) data
+ store
.SkipBytes
;
1354 for (slice
= 0; slice
< store
.CopySlices
; slice
++) {
1355 /* Map dest texture buffer */
1356 ctx
->Driver
.MapTextureImage(ctx
, texImage
, slice
+ zoffset
,
1357 xoffset
, yoffset
, width
, height
,
1358 GL_MAP_WRITE_BIT
| GL_MAP_INVALIDATE_RANGE_BIT
,
1359 &dstMap
, &dstRowStride
);
1363 /* copy rows of blocks */
1364 for (i
= 0; i
< store
.CopyRowsPerSlice
; i
++) {
1365 memcpy(dstMap
, src
, store
.CopyBytesPerRow
);
1366 dstMap
+= dstRowStride
;
1367 src
+= store
.TotalBytesPerRow
;
1370 ctx
->Driver
.UnmapTextureImage(ctx
, texImage
, slice
+ zoffset
);
1372 /* advance to next slice */
1373 src
+= store
.TotalBytesPerRow
* (store
.TotalRowsPerSlice
- store
.CopyRowsPerSlice
);
1376 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage%uD",
1381 _mesa_unmap_teximage_pbo(ctx
, &ctx
->Unpack
);