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
20 #include "libavutil/attributes.h"
21 #include "libavutil/cpu.h"
22 #include "libavutil/x86/cpu.h"
23 #include "libavcodec/idctdsp.h"
24 #include "libavcodec/xvididct.h"
29 #if ARCH_X86_32 && HAVE_YASM
30 static void xvid_idct_mmx_put(uint8_t *dest, int line_size, short *block)
32 ff_xvid_idct_mmx(block);
33 ff_put_pixels_clamped(block, dest, line_size);
36 static void xvid_idct_mmx_add(uint8_t *dest, int line_size, short *block)
38 ff_xvid_idct_mmx(block);
39 ff_add_pixels_clamped(block, dest, line_size);
42 static void xvid_idct_mmxext_put(uint8_t *dest, int line_size, short *block)
44 ff_xvid_idct_mmxext(block);
45 ff_put_pixels_clamped(block, dest, line_size);
48 static void xvid_idct_mmxext_add(uint8_t *dest, int line_size, short *block)
50 ff_xvid_idct_mmxext(block);
51 ff_add_pixels_clamped(block, dest, line_size);
55 av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
56 unsigned high_bit_depth)
59 int cpu_flags = av_get_cpu_flags();
62 !(avctx->idct_algo == FF_IDCT_AUTO ||
63 avctx->idct_algo == FF_IDCT_XVID))
67 if (EXTERNAL_MMX(cpu_flags)) {
68 c->idct_put = xvid_idct_mmx_put;
69 c->idct_add = xvid_idct_mmx_add;
70 c->idct = ff_xvid_idct_mmx;
71 c->perm_type = FF_IDCT_PERM_NONE;
74 if (EXTERNAL_MMXEXT(cpu_flags)) {
75 c->idct_put = xvid_idct_mmxext_put;
76 c->idct_add = xvid_idct_mmxext_add;
77 c->idct = ff_xvid_idct_mmxext;
78 c->perm_type = FF_IDCT_PERM_NONE;
82 if (EXTERNAL_SSE2(cpu_flags)) {
83 c->idct_put = ff_xvid_idct_put_sse2;
84 c->idct_add = ff_xvid_idct_add_sse2;
85 c->idct = ff_xvid_idct_sse2;
86 c->perm_type = FF_IDCT_PERM_SSE2;
88 #endif /* HAVE_YASM */