2 * Copyright (c) 2000, 2001 Fabrice Bellard
3 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "libavutil/attributes.h"
24 #include "libavutil/cpu.h"
25 #include "libavutil/x86/cpu.h"
26 #include "libavcodec/avcodec.h"
27 #include "libavcodec/dsputil.h"
28 #include "libavcodec/simple_idct.h"
29 #include "dsputil_x86.h"
30 #include "idct_xvid.h"
32 static av_cold void dsputil_init_mmx(DSPContext *c, AVCodecContext *avctx,
33 int cpu_flags, unsigned high_bit_depth)
36 c->put_pixels_clamped = ff_put_pixels_clamped_mmx;
37 c->add_pixels_clamped = ff_add_pixels_clamped_mmx;
39 if (!high_bit_depth) {
40 c->draw_edges = ff_draw_edges_mmx;
43 if (avctx->lowres == 0 && !high_bit_depth) {
44 switch (avctx->idct_algo) {
46 case FF_IDCT_SIMPLEAUTO:
47 case FF_IDCT_SIMPLEMMX:
48 c->idct_put = ff_simple_idct_put_mmx;
49 c->idct_add = ff_simple_idct_add_mmx;
50 c->idct = ff_simple_idct_mmx;
51 c->idct_permutation_type = FF_SIMPLE_IDCT_PERM;
54 c->idct_put = ff_idct_xvid_mmx_put;
55 c->idct_add = ff_idct_xvid_mmx_add;
56 c->idct = ff_idct_xvid_mmx;
61 #endif /* HAVE_MMX_INLINE */
64 c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx;
65 #endif /* HAVE_MMX_EXTERNAL */
68 static av_cold void dsputil_init_mmxext(DSPContext *c, AVCodecContext *avctx,
69 int cpu_flags, unsigned high_bit_depth)
71 #if HAVE_MMXEXT_INLINE
72 if (!high_bit_depth && avctx->idct_algo == FF_IDCT_XVIDMMX && avctx->lowres == 0) {
73 c->idct_put = ff_idct_xvid_mmxext_put;
74 c->idct_add = ff_idct_xvid_mmxext_add;
75 c->idct = ff_idct_xvid_mmxext;
77 #endif /* HAVE_MMXEXT_INLINE */
80 static av_cold void dsputil_init_sse2(DSPContext *c, AVCodecContext *avctx,
81 int cpu_flags, unsigned high_bit_depth)
84 if (!high_bit_depth && avctx->idct_algo == FF_IDCT_XVIDMMX && avctx->lowres == 0) {
85 c->idct_put = ff_idct_xvid_sse2_put;
86 c->idct_add = ff_idct_xvid_sse2_add;
87 c->idct = ff_idct_xvid_sse2;
88 c->idct_permutation_type = FF_SSE2_IDCT_PERM;
90 #endif /* HAVE_SSE2_INLINE */
92 #if HAVE_SSE2_EXTERNAL
93 c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
94 #endif /* HAVE_SSE2_EXTERNAL */
97 av_cold void ff_dsputil_init_x86(DSPContext *c, AVCodecContext *avctx,
98 unsigned high_bit_depth)
100 int cpu_flags = av_get_cpu_flags();
102 if (X86_MMX(cpu_flags))
103 dsputil_init_mmx(c, avctx, cpu_flags, high_bit_depth);
105 if (X86_MMXEXT(cpu_flags))
106 dsputil_init_mmxext(c, avctx, cpu_flags, high_bit_depth);
108 if (X86_SSE2(cpu_flags))
109 dsputil_init_sse2(c, avctx, cpu_flags, high_bit_depth);
112 ff_dsputilenc_init_mmx(c, avctx, high_bit_depth);