1 /**************************************************************************
3 * Copyright (C) 2011 Red Hat Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 **************************************************************************/
27 #include "u_format_rgtc.h"
28 #include "u_format_latc.h"
30 static void u_format_unsigned_encode_rgtc_chan(uint8_t *blkaddr
, uint8_t srccolors
[4][4],
31 int numxpixels
, int numypixels
);
33 static void u_format_unsigned_fetch_texel_rgtc(unsigned srcRowStride
, const uint8_t *pixdata
,
34 unsigned i
, unsigned j
, uint8_t *value
, unsigned comps
);
36 static void u_format_signed_encode_rgtc_chan(int8_t *blkaddr
, int8_t srccolors
[4][4],
37 int numxpixels
, int numypixels
);
39 static void u_format_signed_fetch_texel_rgtc(unsigned srcRowStride
, const int8_t *pixdata
,
40 unsigned i
, unsigned j
, int8_t *value
, unsigned comps
);
43 util_format_latc1_unorm_fetch_rgba_8unorm(uint8_t *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
45 /* Fix warnings here: */
46 (void) u_format_unsigned_encode_rgtc_chan
;
47 (void) u_format_signed_encode_rgtc_chan
;
49 u_format_unsigned_fetch_texel_rgtc(0, src
, i
, j
, dst
, 1);
53 util_format_latc1_unorm_unpack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
55 util_format_rgtc1_unorm_unpack_rgba_8unorm(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
);
59 util_format_latc1_unorm_pack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
,
60 unsigned src_stride
, unsigned width
, unsigned height
)
62 util_format_rgtc1_unorm_pack_rgba_8unorm(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
);
66 util_format_latc1_unorm_unpack_rgba_float(float *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
71 for(y
= 0; y
< height
; y
+= 4) {
72 const uint8_t *src
= src_row
;
73 for(x
= 0; x
< width
; x
+= 4) {
74 for(j
= 0; j
< 4; ++j
) {
75 for(i
= 0; i
< 4; ++i
) {
76 float *dst
= dst_row
+ (y
+ j
)*dst_stride
/sizeof(*dst_row
) + (x
+ i
)*4;
78 u_format_unsigned_fetch_texel_rgtc(0, src
, i
, j
, &tmp_r
, 1);
81 dst
[2] = ubyte_to_float(tmp_r
);
87 src_row
+= src_stride
;
92 util_format_latc1_unorm_pack_rgba_float(uint8_t *dst_row
, unsigned dst_stride
, const float *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
94 util_format_rgtc1_unorm_pack_rgba_float(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
);
98 util_format_latc1_unorm_fetch_rgba_float(float *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
102 u_format_unsigned_fetch_texel_rgtc(0, src
, i
, j
, &tmp_r
, 1);
105 dst
[2] = ubyte_to_float(tmp_r
);
110 util_format_latc1_snorm_fetch_rgba_8unorm(uint8_t *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
112 fprintf(stderr
,"%s\n", __func__
);
116 util_format_latc1_snorm_unpack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
118 fprintf(stderr
,"%s\n", __func__
);
122 util_format_latc1_snorm_pack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
124 fprintf(stderr
,"%s\n", __func__
);
128 util_format_latc1_snorm_pack_rgba_float(uint8_t *dst_row
, unsigned dst_stride
, const float *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
130 util_format_rgtc1_snorm_pack_rgba_float(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
);
134 util_format_latc1_snorm_unpack_rgba_float(float *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
139 for(y
= 0; y
< height
; y
+= 4) {
140 const int8_t *src
= (int8_t *)src_row
;
141 for(x
= 0; x
< width
; x
+= 4) {
142 for(j
= 0; j
< 4; ++j
) {
143 for(i
= 0; i
< 4; ++i
) {
144 float *dst
= dst_row
+ (y
+ j
)*dst_stride
/sizeof(*dst_row
) + (x
+ i
)*4;
146 u_format_signed_fetch_texel_rgtc(0, src
, i
, j
, &tmp_r
, 1);
149 dst
[2] = byte_to_float_tex(tmp_r
);
155 src_row
+= src_stride
;
160 util_format_latc1_snorm_fetch_rgba_float(float *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
164 u_format_signed_fetch_texel_rgtc(0, (int8_t *)src
, i
, j
, &tmp_r
, 1);
167 dst
[2] = byte_to_float_tex(tmp_r
);
173 util_format_latc2_unorm_fetch_rgba_8unorm(uint8_t *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
177 u_format_unsigned_fetch_texel_rgtc(0, src
, i
, j
, dst
, 2);
178 u_format_unsigned_fetch_texel_rgtc(0, src
+ 8, i
, j
, dst
+ 1, 2);
182 util_format_latc2_unorm_unpack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
184 util_format_rgtc2_unorm_unpack_rgba_8unorm(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
);
188 util_format_latc2_unorm_pack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
190 util_format_rgtc2_unorm_pack_rgba_8unorm(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
);
194 util_format_latc2_unorm_pack_rgba_float(uint8_t *dst_row
, unsigned dst_stride
, const float *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
196 util_format_rxtc2_unorm_pack_rgba_float(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
, 3);
200 util_format_latc2_unorm_unpack_rgba_float(float *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
205 for(y
= 0; y
< height
; y
+= 4) {
206 const uint8_t *src
= src_row
;
207 for(x
= 0; x
< width
; x
+= 4) {
208 for(j
= 0; j
< 4; ++j
) {
209 for(i
= 0; i
< 4; ++i
) {
210 float *dst
= dst_row
+ (y
+ j
)*dst_stride
/sizeof(*dst_row
) + (x
+ i
)*4;
211 uint8_t tmp_r
, tmp_g
;
212 u_format_unsigned_fetch_texel_rgtc(0, src
, i
, j
, &tmp_r
, 2);
213 u_format_unsigned_fetch_texel_rgtc(0, src
+ 8, i
, j
, &tmp_g
, 2);
216 dst
[2] = ubyte_to_float(tmp_r
);
217 dst
[3] = ubyte_to_float(tmp_g
);
222 src_row
+= src_stride
;
227 util_format_latc2_unorm_fetch_rgba_float(float *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
229 uint8_t tmp_r
, tmp_g
;
231 u_format_unsigned_fetch_texel_rgtc(0, src
, i
, j
, &tmp_r
, 2);
232 u_format_unsigned_fetch_texel_rgtc(0, src
+ 8, i
, j
, &tmp_g
, 2);
235 dst
[2] = ubyte_to_float(tmp_r
);
236 dst
[3] = ubyte_to_float(tmp_g
);
241 util_format_latc2_snorm_fetch_rgba_8unorm(uint8_t *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
243 fprintf(stderr
,"%s\n", __func__
);
247 util_format_latc2_snorm_unpack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
249 fprintf(stderr
,"%s\n", __func__
);
253 util_format_latc2_snorm_pack_rgba_8unorm(uint8_t *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
255 fprintf(stderr
,"%s\n", __func__
);
259 util_format_latc2_snorm_unpack_rgba_float(float *dst_row
, unsigned dst_stride
, const uint8_t *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
264 for(y
= 0; y
< height
; y
+= 4) {
265 const int8_t *src
= (int8_t *)src_row
;
266 for(x
= 0; x
< width
; x
+= 4) {
267 for(j
= 0; j
< 4; ++j
) {
268 for(i
= 0; i
< 4; ++i
) {
269 float *dst
= dst_row
+ (y
+ j
)*dst_stride
/sizeof(*dst_row
) + (x
+ i
)*4;
271 u_format_signed_fetch_texel_rgtc(0, src
, i
, j
, &tmp_r
, 2);
272 u_format_signed_fetch_texel_rgtc(0, src
+ 8, i
, j
, &tmp_g
, 2);
275 dst
[2] = byte_to_float_tex(tmp_r
);
276 dst
[3] = byte_to_float_tex(tmp_g
);
281 src_row
+= src_stride
;
286 util_format_latc2_snorm_pack_rgba_float(uint8_t *dst_row
, unsigned dst_stride
, const float *src_row
, unsigned src_stride
, unsigned width
, unsigned height
)
288 util_format_rxtc2_snorm_pack_rgba_float(dst_row
, dst_stride
, src_row
, src_stride
, width
, height
, 3);
292 util_format_latc2_snorm_fetch_rgba_float(float *dst
, const uint8_t *src
, unsigned i
, unsigned j
)
296 u_format_signed_fetch_texel_rgtc(0, (int8_t *)src
, i
, j
, &tmp_r
, 2);
297 u_format_signed_fetch_texel_rgtc(0, (int8_t *)src
+ 8, i
, j
, &tmp_g
, 2);
300 dst
[2] = byte_to_float_tex(tmp_r
);
301 dst
[3] = byte_to_float_tex(tmp_g
);
305 #define TAG(x) u_format_unsigned_##x
310 #include "../../../mesa/main/texcompress_rgtc_tmp.h"
318 #define TAG(x) u_format_signed_##x
320 #define T_MIN (int8_t)-128
321 #define T_MAX (int8_t)127
323 #include "../../../mesa/main/texcompress_rgtc_tmp.h"