2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 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.
30 * Texel fetch/store functions
32 * \author Gareth Hughes
36 #include "main/colormac.h"
37 #include "main/macros.h"
38 #include "main/texcompress.h"
39 #include "main/texcompress_fxt1.h"
40 #include "main/texcompress_s3tc.h"
41 #include "main/texcompress_rgtc.h"
42 #include "main/texcompress_etc.h"
43 #include "main/teximage.h"
44 #include "main/samplerobj.h"
45 #include "s_context.h"
46 #include "s_texfetch.h"
47 #include "../../gallium/auxiliary/util/u_format_rgb9e5.h"
48 #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h"
52 * Convert an 8-bit sRGB value from non-linear space to a
53 * linear RGB value in [0, 1].
54 * Implemented with a 256-entry lookup table.
57 nonlinear_to_linear(GLubyte cs8
)
59 static GLfloat table
[256];
60 static GLboolean tableReady
= GL_FALSE
;
62 /* compute lookup table now */
64 for (i
= 0; i
< 256; i
++) {
65 const GLfloat cs
= UBYTE_TO_FLOAT(i
);
67 table
[i
] = cs
/ 12.92f
;
70 table
[i
] = (GLfloat
) pow((cs
+ 0.055) / 1.055, 2.4);
80 /* Texel fetch routines for all supported formats
83 #include "s_texfetch_tmp.h"
86 #include "s_texfetch_tmp.h"
89 #include "s_texfetch_tmp.h"
93 * All compressed texture texel fetching is done though this function.
94 * Basically just call a core-Mesa texel fetch function.
97 fetch_compressed(const struct swrast_texture_image
*swImage
,
98 GLint i
, GLint j
, GLint k
, GLfloat
*texel
)
100 /* The FetchCompressedTexel function takes an integer pixel rowstride,
101 * while the image's rowstride is bytes per row of blocks.
104 GLuint texelBytes
= _mesa_get_format_bytes(swImage
->Base
.TexFormat
);
105 _mesa_get_format_block_size(swImage
->Base
.TexFormat
, &bw
, &bh
);
106 assert(swImage
->RowStride
* bw
% texelBytes
== 0);
108 swImage
->FetchCompressedTexel(swImage
->ImageSlices
[k
],
109 swImage
->RowStride
* bw
/ texelBytes
,
116 * Null texel fetch function.
118 * Have to have this so the FetchTexel function pointer is never NULL.
120 static void fetch_null_texelf( const struct swrast_texture_image
*texImage
,
121 GLint i
, GLint j
, GLint k
, GLfloat
*texel
)
123 (void) texImage
; (void) i
; (void) j
; (void) k
;
128 _mesa_warning(NULL
, "fetch_null_texelf() called!");
133 * Table to map MESA_FORMAT_ to texel fetch/store funcs.
134 * XXX this is somewhat temporary.
138 FetchTexelFunc Fetch1D
;
139 FetchTexelFunc Fetch2D
;
140 FetchTexelFunc Fetch3D
;
152 MESA_FORMAT_RGBA8888
,
153 fetch_texel_1d_f_rgba8888
,
154 fetch_texel_2d_f_rgba8888
,
155 fetch_texel_3d_f_rgba8888
158 MESA_FORMAT_RGBA8888_REV
,
159 fetch_texel_1d_f_rgba8888_rev
,
160 fetch_texel_2d_f_rgba8888_rev
,
161 fetch_texel_3d_f_rgba8888_rev
164 MESA_FORMAT_ARGB8888
,
165 fetch_texel_1d_f_argb8888
,
166 fetch_texel_2d_f_argb8888
,
167 fetch_texel_3d_f_argb8888
170 MESA_FORMAT_ARGB8888_REV
,
171 fetch_texel_1d_f_argb8888_rev
,
172 fetch_texel_2d_f_argb8888_rev
,
173 fetch_texel_3d_f_argb8888_rev
176 MESA_FORMAT_RGBX8888
,
177 fetch_texel_1d_f_rgbx8888
,
178 fetch_texel_2d_f_rgbx8888
,
179 fetch_texel_3d_f_rgbx8888
182 MESA_FORMAT_RGBX8888_REV
,
183 fetch_texel_1d_f_rgbx8888_rev
,
184 fetch_texel_2d_f_rgbx8888_rev
,
185 fetch_texel_3d_f_rgbx8888_rev
188 MESA_FORMAT_XRGB8888
,
189 fetch_texel_1d_f_xrgb8888
,
190 fetch_texel_2d_f_xrgb8888
,
191 fetch_texel_3d_f_xrgb8888
194 MESA_FORMAT_XRGB8888_REV
,
195 fetch_texel_1d_f_xrgb8888_rev
,
196 fetch_texel_2d_f_xrgb8888_rev
,
197 fetch_texel_3d_f_xrgb8888_rev
201 fetch_texel_1d_f_rgb888
,
202 fetch_texel_2d_f_rgb888
,
203 fetch_texel_3d_f_rgb888
207 fetch_texel_1d_f_bgr888
,
208 fetch_texel_2d_f_bgr888
,
209 fetch_texel_3d_f_bgr888
213 fetch_texel_1d_f_rgb565
,
214 fetch_texel_2d_f_rgb565
,
215 fetch_texel_3d_f_rgb565
218 MESA_FORMAT_RGB565_REV
,
219 fetch_texel_1d_f_rgb565_rev
,
220 fetch_texel_2d_f_rgb565_rev
,
221 fetch_texel_3d_f_rgb565_rev
224 MESA_FORMAT_ARGB4444
,
225 fetch_texel_1d_f_argb4444
,
226 fetch_texel_2d_f_argb4444
,
227 fetch_texel_3d_f_argb4444
230 MESA_FORMAT_ARGB4444_REV
,
231 fetch_texel_1d_f_argb4444_rev
,
232 fetch_texel_2d_f_argb4444_rev
,
233 fetch_texel_3d_f_argb4444_rev
236 MESA_FORMAT_RGBA5551
,
237 fetch_texel_1d_f_rgba5551
,
238 fetch_texel_2d_f_rgba5551
,
239 fetch_texel_3d_f_rgba5551
242 MESA_FORMAT_ARGB1555
,
243 fetch_texel_1d_f_argb1555
,
244 fetch_texel_2d_f_argb1555
,
245 fetch_texel_3d_f_argb1555
248 MESA_FORMAT_ARGB1555_REV
,
249 fetch_texel_1d_f_argb1555_rev
,
250 fetch_texel_2d_f_argb1555_rev
,
251 fetch_texel_3d_f_argb1555_rev
255 fetch_texel_1d_f_al44
,
256 fetch_texel_2d_f_al44
,
257 fetch_texel_3d_f_al44
261 fetch_texel_1d_f_al88
,
262 fetch_texel_2d_f_al88
,
263 fetch_texel_3d_f_al88
266 MESA_FORMAT_AL88_REV
,
267 fetch_texel_1d_f_al88_rev
,
268 fetch_texel_2d_f_al88_rev
,
269 fetch_texel_3d_f_al88_rev
273 fetch_texel_1d_f_al1616
,
274 fetch_texel_2d_f_al1616
,
275 fetch_texel_3d_f_al1616
278 MESA_FORMAT_AL1616_REV
,
279 fetch_texel_1d_f_al1616_rev
,
280 fetch_texel_2d_f_al1616_rev
,
281 fetch_texel_3d_f_al1616_rev
285 fetch_texel_1d_f_rgb332
,
286 fetch_texel_2d_f_rgb332
,
287 fetch_texel_3d_f_rgb332
297 fetch_texel_1d_f_a16
,
298 fetch_texel_2d_f_a16
,
309 fetch_texel_1d_f_l16
,
310 fetch_texel_2d_f_l16
,
321 fetch_texel_1d_f_i16
,
322 fetch_texel_2d_f_i16
,
327 fetch_texel_1d_f_ycbcr
,
328 fetch_texel_2d_f_ycbcr
,
329 fetch_texel_3d_f_ycbcr
332 MESA_FORMAT_YCBCR_REV
,
333 fetch_texel_1d_f_ycbcr_rev
,
334 fetch_texel_2d_f_ycbcr_rev
,
335 fetch_texel_3d_f_ycbcr_rev
345 fetch_texel_1d_f_gr88
,
346 fetch_texel_2d_f_gr88
,
347 fetch_texel_3d_f_gr88
351 fetch_texel_1d_f_rg88
,
352 fetch_texel_2d_f_rg88
,
353 fetch_texel_3d_f_rg88
357 fetch_texel_1d_f_r16
,
358 fetch_texel_2d_f_r16
,
363 fetch_texel_1d_f_rg1616
,
364 fetch_texel_2d_f_rg1616
,
365 fetch_texel_3d_f_rg1616
369 fetch_texel_1d_f_rg1616_rev
,
370 fetch_texel_2d_f_rg1616_rev
,
371 fetch_texel_3d_f_rg1616_rev
374 MESA_FORMAT_ARGB2101010
,
375 fetch_texel_1d_f_argb2101010
,
376 fetch_texel_2d_f_argb2101010
,
377 fetch_texel_3d_f_argb2101010
381 fetch_texel_1d_f_z24_s8
,
382 fetch_texel_2d_f_z24_s8
,
383 fetch_texel_3d_f_z24_s8
387 fetch_texel_1d_f_s8_z24
,
388 fetch_texel_2d_f_s8_z24
,
389 fetch_texel_3d_f_s8_z24
393 fetch_texel_1d_f_z16
,
394 fetch_texel_2d_f_z16
,
399 fetch_texel_1d_f_s8_z24
,
400 fetch_texel_2d_f_s8_z24
,
401 fetch_texel_3d_f_s8_z24
405 fetch_texel_1d_f_z24_s8
,
406 fetch_texel_2d_f_z24_s8
,
407 fetch_texel_3d_f_z24_s8
411 fetch_texel_1d_f_z32
,
412 fetch_texel_2d_f_z32
,
423 fetch_texel_1d_srgb8
,
424 fetch_texel_2d_srgb8
,
429 fetch_texel_1d_srgba8
,
430 fetch_texel_2d_srgba8
,
431 fetch_texel_3d_srgba8
435 fetch_texel_1d_sargb8
,
436 fetch_texel_2d_sargb8
,
437 fetch_texel_3d_sargb8
452 MESA_FORMAT_SRGB_DXT1
,
458 MESA_FORMAT_SRGBA_DXT1
,
464 MESA_FORMAT_SRGBA_DXT3
,
470 MESA_FORMAT_SRGBA_DXT5
,
477 MESA_FORMAT_RGB_FXT1
,
483 MESA_FORMAT_RGBA_FXT1
,
489 MESA_FORMAT_RGB_DXT1
,
495 MESA_FORMAT_RGBA_DXT1
,
501 MESA_FORMAT_RGBA_DXT3
,
507 MESA_FORMAT_RGBA_DXT5
,
513 MESA_FORMAT_RGBA_FLOAT32
,
514 fetch_texel_1d_f_rgba_f32
,
515 fetch_texel_2d_f_rgba_f32
,
516 fetch_texel_3d_f_rgba_f32
519 MESA_FORMAT_RGBA_FLOAT16
,
520 fetch_texel_1d_f_rgba_f16
,
521 fetch_texel_2d_f_rgba_f16
,
522 fetch_texel_3d_f_rgba_f16
525 MESA_FORMAT_RGB_FLOAT32
,
526 fetch_texel_1d_f_rgb_f32
,
527 fetch_texel_2d_f_rgb_f32
,
528 fetch_texel_3d_f_rgb_f32
531 MESA_FORMAT_RGB_FLOAT16
,
532 fetch_texel_1d_f_rgb_f16
,
533 fetch_texel_2d_f_rgb_f16
,
534 fetch_texel_3d_f_rgb_f16
537 MESA_FORMAT_ALPHA_FLOAT32
,
538 fetch_texel_1d_f_alpha_f32
,
539 fetch_texel_2d_f_alpha_f32
,
540 fetch_texel_3d_f_alpha_f32
543 MESA_FORMAT_ALPHA_FLOAT16
,
544 fetch_texel_1d_f_alpha_f16
,
545 fetch_texel_2d_f_alpha_f16
,
546 fetch_texel_3d_f_alpha_f16
549 MESA_FORMAT_LUMINANCE_FLOAT32
,
550 fetch_texel_1d_f_luminance_f32
,
551 fetch_texel_2d_f_luminance_f32
,
552 fetch_texel_3d_f_luminance_f32
555 MESA_FORMAT_LUMINANCE_FLOAT16
,
556 fetch_texel_1d_f_luminance_f16
,
557 fetch_texel_2d_f_luminance_f16
,
558 fetch_texel_3d_f_luminance_f16
561 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
,
562 fetch_texel_1d_f_luminance_alpha_f32
,
563 fetch_texel_2d_f_luminance_alpha_f32
,
564 fetch_texel_3d_f_luminance_alpha_f32
567 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
,
568 fetch_texel_1d_f_luminance_alpha_f16
,
569 fetch_texel_2d_f_luminance_alpha_f16
,
570 fetch_texel_3d_f_luminance_alpha_f16
573 MESA_FORMAT_INTENSITY_FLOAT32
,
574 fetch_texel_1d_f_intensity_f32
,
575 fetch_texel_2d_f_intensity_f32
,
576 fetch_texel_3d_f_intensity_f32
579 MESA_FORMAT_INTENSITY_FLOAT16
,
580 fetch_texel_1d_f_intensity_f16
,
581 fetch_texel_2d_f_intensity_f16
,
582 fetch_texel_3d_f_intensity_f16
585 MESA_FORMAT_R_FLOAT32
,
586 fetch_texel_1d_f_r_f32
,
587 fetch_texel_2d_f_r_f32
,
588 fetch_texel_3d_f_r_f32
591 MESA_FORMAT_R_FLOAT16
,
592 fetch_texel_1d_f_r_f16
,
593 fetch_texel_2d_f_r_f16
,
594 fetch_texel_3d_f_r_f16
597 MESA_FORMAT_RG_FLOAT32
,
598 fetch_texel_1d_f_rg_f32
,
599 fetch_texel_2d_f_rg_f32
,
600 fetch_texel_3d_f_rg_f32
603 MESA_FORMAT_RG_FLOAT16
,
604 fetch_texel_1d_f_rg_f16
,
605 fetch_texel_2d_f_rg_f16
,
606 fetch_texel_3d_f_rg_f16
610 MESA_FORMAT_ALPHA_UINT8
,
617 MESA_FORMAT_ALPHA_UINT16
,
624 MESA_FORMAT_ALPHA_UINT32
,
631 MESA_FORMAT_ALPHA_INT8
,
638 MESA_FORMAT_ALPHA_INT16
,
645 MESA_FORMAT_ALPHA_INT32
,
653 MESA_FORMAT_INTENSITY_UINT8
,
660 MESA_FORMAT_INTENSITY_UINT16
,
667 MESA_FORMAT_INTENSITY_UINT32
,
674 MESA_FORMAT_INTENSITY_INT8
,
681 MESA_FORMAT_INTENSITY_INT16
,
688 MESA_FORMAT_INTENSITY_INT32
,
696 MESA_FORMAT_LUMINANCE_UINT8
,
703 MESA_FORMAT_LUMINANCE_UINT16
,
710 MESA_FORMAT_LUMINANCE_UINT32
,
717 MESA_FORMAT_LUMINANCE_INT8
,
724 MESA_FORMAT_LUMINANCE_INT16
,
731 MESA_FORMAT_LUMINANCE_INT32
,
739 MESA_FORMAT_LUMINANCE_ALPHA_UINT8
,
746 MESA_FORMAT_LUMINANCE_ALPHA_UINT16
,
753 MESA_FORMAT_LUMINANCE_ALPHA_UINT32
,
760 MESA_FORMAT_LUMINANCE_ALPHA_INT8
,
767 MESA_FORMAT_LUMINANCE_ALPHA_INT16
,
774 MESA_FORMAT_LUMINANCE_ALPHA_INT32
,
796 MESA_FORMAT_RGB_INT8
,
802 /* non-normalized, signed int */
804 MESA_FORMAT_RGBA_INT8
,
805 fetch_texel_1d_rgba_int8
,
806 fetch_texel_2d_rgba_int8
,
807 fetch_texel_3d_rgba_int8
816 MESA_FORMAT_RG_INT16
,
822 MESA_FORMAT_RGB_INT16
,
828 MESA_FORMAT_RGBA_INT16
,
829 fetch_texel_1d_rgba_int16
,
830 fetch_texel_2d_rgba_int16
,
831 fetch_texel_3d_rgba_int16
840 MESA_FORMAT_RG_INT32
,
846 MESA_FORMAT_RGB_INT32
,
852 MESA_FORMAT_RGBA_INT32
,
853 fetch_texel_1d_rgba_int32
,
854 fetch_texel_2d_rgba_int32
,
855 fetch_texel_3d_rgba_int32
858 /* non-normalized, unsigned int */
866 MESA_FORMAT_RG_UINT8
,
872 MESA_FORMAT_RGB_UINT8
,
878 MESA_FORMAT_RGBA_UINT8
,
879 fetch_texel_1d_rgba_uint8
,
880 fetch_texel_2d_rgba_uint8
,
881 fetch_texel_3d_rgba_uint8
884 MESA_FORMAT_R_UINT16
,
890 MESA_FORMAT_RG_UINT16
,
896 MESA_FORMAT_RGB_UINT16
,
902 MESA_FORMAT_RGBA_UINT16
,
903 fetch_texel_1d_rgba_uint16
,
904 fetch_texel_2d_rgba_uint16
,
905 fetch_texel_3d_rgba_uint16
908 MESA_FORMAT_R_UINT32
,
914 MESA_FORMAT_RG_UINT32
,
920 MESA_FORMAT_RGB_UINT32
,
926 MESA_FORMAT_RGBA_UINT32
,
927 fetch_texel_1d_rgba_uint32
,
928 fetch_texel_2d_rgba_uint32
,
929 fetch_texel_3d_rgba_uint32
935 fetch_texel_1d_dudv8
,
936 fetch_texel_2d_dudv8
,
940 /* signed, normalized */
942 MESA_FORMAT_SIGNED_R8
,
943 fetch_texel_1d_signed_r8
,
944 fetch_texel_2d_signed_r8
,
945 fetch_texel_3d_signed_r8
948 MESA_FORMAT_SIGNED_RG88_REV
,
949 fetch_texel_1d_signed_rg88_rev
,
950 fetch_texel_2d_signed_rg88_rev
,
951 fetch_texel_3d_signed_rg88_rev
954 MESA_FORMAT_SIGNED_RGBX8888
,
955 fetch_texel_1d_signed_rgbx8888
,
956 fetch_texel_2d_signed_rgbx8888
,
957 fetch_texel_3d_signed_rgbx8888
960 MESA_FORMAT_SIGNED_RGBA8888
,
961 fetch_texel_1d_signed_rgba8888
,
962 fetch_texel_2d_signed_rgba8888
,
963 fetch_texel_3d_signed_rgba8888
966 MESA_FORMAT_SIGNED_RGBA8888_REV
,
967 fetch_texel_1d_signed_rgba8888_rev
,
968 fetch_texel_2d_signed_rgba8888_rev
,
969 fetch_texel_3d_signed_rgba8888_rev
972 MESA_FORMAT_SIGNED_R16
,
973 fetch_texel_1d_signed_r16
,
974 fetch_texel_2d_signed_r16
,
975 fetch_texel_3d_signed_r16
978 MESA_FORMAT_SIGNED_GR1616
,
979 fetch_texel_1d_signed_rg1616
,
980 fetch_texel_2d_signed_rg1616
,
981 fetch_texel_3d_signed_rg1616
984 MESA_FORMAT_SIGNED_RGB_16
,
985 fetch_texel_1d_signed_rgb_16
,
986 fetch_texel_2d_signed_rgb_16
,
987 fetch_texel_3d_signed_rgb_16
990 MESA_FORMAT_SIGNED_RGBA_16
,
991 fetch_texel_1d_signed_rgba_16
,
992 fetch_texel_2d_signed_rgba_16
,
993 fetch_texel_3d_signed_rgba_16
997 fetch_texel_1d_rgba_16
,
998 fetch_texel_2d_rgba_16
,
999 fetch_texel_3d_rgba_16
1002 MESA_FORMAT_RED_RGTC1
,
1008 MESA_FORMAT_SIGNED_RED_RGTC1
,
1014 MESA_FORMAT_RG_RGTC2
,
1020 MESA_FORMAT_SIGNED_RG_RGTC2
,
1026 MESA_FORMAT_L_LATC1
,
1032 MESA_FORMAT_SIGNED_L_LATC1
,
1038 MESA_FORMAT_LA_LATC2
,
1044 MESA_FORMAT_SIGNED_LA_LATC2
,
1050 MESA_FORMAT_ETC1_RGB8
,
1056 MESA_FORMAT_ETC2_RGB8
,
1062 MESA_FORMAT_ETC2_SRGB8
,
1068 MESA_FORMAT_ETC2_RGBA8_EAC
,
1074 MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC
,
1080 MESA_FORMAT_ETC2_R11_EAC
,
1086 MESA_FORMAT_ETC2_RG11_EAC
,
1092 MESA_FORMAT_ETC2_SIGNED_R11_EAC
,
1098 MESA_FORMAT_ETC2_SIGNED_RG11_EAC
,
1104 MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1
,
1110 MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1
,
1116 MESA_FORMAT_SIGNED_A8
,
1117 fetch_texel_1d_signed_a8
,
1118 fetch_texel_2d_signed_a8
,
1119 fetch_texel_3d_signed_a8
1122 MESA_FORMAT_SIGNED_L8
,
1123 fetch_texel_1d_signed_l8
,
1124 fetch_texel_2d_signed_l8
,
1125 fetch_texel_3d_signed_l8
1128 MESA_FORMAT_SIGNED_AL88
,
1129 fetch_texel_1d_signed_al88
,
1130 fetch_texel_2d_signed_al88
,
1131 fetch_texel_3d_signed_al88
1134 MESA_FORMAT_SIGNED_I8
,
1135 fetch_texel_1d_signed_i8
,
1136 fetch_texel_2d_signed_i8
,
1137 fetch_texel_3d_signed_i8
1140 MESA_FORMAT_SIGNED_A16
,
1141 fetch_texel_1d_signed_a16
,
1142 fetch_texel_2d_signed_a16
,
1143 fetch_texel_3d_signed_a16
1146 MESA_FORMAT_SIGNED_L16
,
1147 fetch_texel_1d_signed_l16
,
1148 fetch_texel_2d_signed_l16
,
1149 fetch_texel_3d_signed_l16
1152 MESA_FORMAT_SIGNED_AL1616
,
1153 fetch_texel_1d_signed_al1616
,
1154 fetch_texel_2d_signed_al1616
,
1155 fetch_texel_3d_signed_al1616
1158 MESA_FORMAT_SIGNED_I16
,
1159 fetch_texel_1d_signed_i16
,
1160 fetch_texel_2d_signed_i16
,
1161 fetch_texel_3d_signed_i16
1164 MESA_FORMAT_RGB9_E5_FLOAT
,
1165 fetch_texel_1d_rgb9_e5
,
1166 fetch_texel_2d_rgb9_e5
,
1167 fetch_texel_3d_rgb9_e5
1170 MESA_FORMAT_R11_G11_B10_FLOAT
,
1171 fetch_texel_1d_r11_g11_b10f
,
1172 fetch_texel_2d_r11_g11_b10f
,
1173 fetch_texel_3d_r11_g11_b10f
1176 MESA_FORMAT_Z32_FLOAT
,
1177 fetch_texel_1d_f_r_f32
, /* Reuse the R32F functions. */
1178 fetch_texel_2d_f_r_f32
,
1179 fetch_texel_3d_f_r_f32
1182 MESA_FORMAT_Z32_FLOAT_X24S8
,
1183 fetch_texel_1d_z32f_x24s8
,
1184 fetch_texel_2d_z32f_x24s8
,
1185 fetch_texel_3d_z32f_x24s8
1188 MESA_FORMAT_ARGB2101010_UINT
,
1194 MESA_FORMAT_ABGR2101010_UINT
,
1200 MESA_FORMAT_XRGB4444_UNORM
,
1206 MESA_FORMAT_XRGB1555_UNORM
,
1212 MESA_FORMAT_XBGR8888_SNORM
,
1218 MESA_FORMAT_XBGR8888_SRGB
,
1224 MESA_FORMAT_XBGR8888_UINT
,
1230 MESA_FORMAT_XBGR8888_SINT
,
1236 MESA_FORMAT_XRGB2101010_UNORM
,
1242 MESA_FORMAT_XBGR16161616_UNORM
,
1248 MESA_FORMAT_XBGR16161616_SNORM
,
1254 MESA_FORMAT_XBGR16161616_FLOAT
,
1260 MESA_FORMAT_XBGR16161616_UINT
,
1266 MESA_FORMAT_XBGR16161616_SINT
,
1272 MESA_FORMAT_XBGR32323232_FLOAT
,
1278 MESA_FORMAT_XBGR32323232_UINT
,
1284 MESA_FORMAT_XBGR32323232_SINT
,
1293 * Initialize the texture image's FetchTexel methods.
1296 set_fetch_functions(const struct gl_sampler_object
*samp
,
1297 struct swrast_texture_image
*texImage
, GLuint dims
)
1299 gl_format format
= texImage
->Base
.TexFormat
;
1302 /* check that the table entries are sorted by format name */
1304 for (fmt
= 0; fmt
< MESA_FORMAT_COUNT
; fmt
++) {
1305 assert(texfetch_funcs
[fmt
].Name
== fmt
);
1309 STATIC_ASSERT(Elements(texfetch_funcs
) == MESA_FORMAT_COUNT
);
1311 if (samp
->sRGBDecode
== GL_SKIP_DECODE_EXT
&&
1312 _mesa_get_format_color_encoding(format
) == GL_SRGB
) {
1313 format
= _mesa_get_srgb_format_linear(format
);
1316 assert(format
< MESA_FORMAT_COUNT
);
1320 texImage
->FetchTexel
= texfetch_funcs
[format
].Fetch1D
;
1323 texImage
->FetchTexel
= texfetch_funcs
[format
].Fetch2D
;
1326 texImage
->FetchTexel
= texfetch_funcs
[format
].Fetch3D
;
1329 assert(!"Bad dims in set_fetch_functions()");
1332 texImage
->FetchCompressedTexel
= _mesa_get_compressed_fetch_func(format
);
1334 ASSERT(texImage
->FetchTexel
);
1338 _mesa_update_fetch_functions(struct gl_context
*ctx
, GLuint unit
)
1340 struct gl_texture_object
*texObj
= ctx
->Texture
.Unit
[unit
]._Current
;
1341 struct gl_sampler_object
*samp
;
1348 samp
= _mesa_get_samplerobj(ctx
, unit
);
1350 dims
= _mesa_get_texture_dimensions(texObj
->Target
);
1352 for (face
= 0; face
< 6; face
++) {
1353 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
1354 if (texObj
->Image
[face
][i
]) {
1355 set_fetch_functions(samp
,
1356 swrast_texture_image(texObj
->Image
[face
][i
]),