2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #include "libavutil/attributes.h"
20 #include "libavutil/cpu.h"
21 #include "libavutil/mem.h"
22 #include "libavutil/x86/asm.h"
23 #include "libavutil/x86/cpu.h"
24 #include "libavfilter/vf_idet.h"
28 /* declares main callable idet_filter_line_{mmx,mmxext,sse2}() */
29 #define FUNC_MAIN_DECL(KIND, SPAN) \
30 int ff_idet_filter_line_##KIND(const uint8_t *a, const uint8_t *b, \
31 const uint8_t *c, int w); \
32 static int idet_filter_line_##KIND(const uint8_t *a, const uint8_t *b, \
33 const uint8_t *c, int w) { \
35 const int left_over = w & (SPAN - 1); \
38 sum += ff_idet_filter_line_##KIND(a, b, c, w); \
40 sum += ff_idet_filter_line_c(a + w, b + w, c + w, left_over); \
45 #define FUNC_MAIN_DECL_16bit(KIND, SPAN) \
46 int ff_idet_filter_line_16bit_##KIND(const uint16_t *a, const uint16_t *b, \
47 const uint16_t *c, int w); \
48 static int idet_filter_line_16bit_##KIND(const uint16_t *a, const uint16_t *b, \
49 const uint16_t *c, int w) { \
51 const int left_over = w & (SPAN - 1); \
54 sum += ff_idet_filter_line_16bit_##KIND(a, b, c, w); \
56 sum += ff_idet_filter_line_c_16bit(a + w, b + w, c + w, left_over); \
60 FUNC_MAIN_DECL(sse2
, 16)
61 FUNC_MAIN_DECL_16bit(sse2
, 8)
63 FUNC_MAIN_DECL(mmx
, 8)
64 FUNC_MAIN_DECL(mmxext
, 8)
65 FUNC_MAIN_DECL_16bit(mmx
, 4)
69 av_cold
void ff_idet_init_x86(IDETContext
*idet
, int for_16b
)
72 const int cpu_flags
= av_get_cpu_flags();
75 if (EXTERNAL_MMX(cpu_flags
)) {
76 idet
->filter_line
= for_16b
? (ff_idet_filter_func
)idet_filter_line_16bit_mmx
: idet_filter_line_mmx
;
78 if (EXTERNAL_MMXEXT(cpu_flags
)) {
79 idet
->filter_line
= for_16b
? (ff_idet_filter_func
)idet_filter_line_16bit_mmx
: idet_filter_line_mmxext
;
83 if (EXTERNAL_SSE2(cpu_flags
)) {
84 idet
->filter_line
= for_16b
? (ff_idet_filter_func
)idet_filter_line_16bit_sse2
: idet_filter_line_sse2
;