Merge commit 'fab9df63a3156ffe1f9490aafaea41e03ef60ddf'
[ffmpeg.git] / libavcodec / x86 / dsputil_init.c
1 /*
2  * Copyright (c) 2000, 2001 Fabrice Bellard
3  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * This file is part of FFmpeg.
6  *
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.
11  *
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.
16  *
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
20  */
21
22 #include "config.h"
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"
31
32 static av_cold void dsputil_init_mmx(DSPContext *c, AVCodecContext *avctx,
33                                      int cpu_flags, unsigned high_bit_depth)
34 {
35 #if HAVE_MMX_INLINE
36     c->put_pixels_clamped        = ff_put_pixels_clamped_mmx;
37     c->add_pixels_clamped        = ff_add_pixels_clamped_mmx;
38
39     if (!high_bit_depth) {
40         c->draw_edges   = ff_draw_edges_mmx;
41     }
42
43     if (avctx->lowres == 0 && !high_bit_depth) {
44         switch (avctx->idct_algo) {
45         case FF_IDCT_AUTO:
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;
52             break;
53         case FF_IDCT_XVIDMMX:
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;
57             break;
58         }
59     }
60
61 #endif /* HAVE_MMX_INLINE */
62
63 #if HAVE_MMX_EXTERNAL
64     c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmx;
65 #endif /* HAVE_MMX_EXTERNAL */
66 }
67
68 static av_cold void dsputil_init_mmxext(DSPContext *c, AVCodecContext *avctx,
69                                         int cpu_flags, unsigned high_bit_depth)
70 {
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;
76     }
77 #endif /* HAVE_MMXEXT_INLINE */
78 }
79
80 static av_cold void dsputil_init_sse2(DSPContext *c, AVCodecContext *avctx,
81                                       int cpu_flags, unsigned high_bit_depth)
82 {
83 #if HAVE_SSE2_INLINE
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;
89     }
90 #endif /* HAVE_SSE2_INLINE */
91
92 #if HAVE_SSE2_EXTERNAL
93     c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
94 #endif /* HAVE_SSE2_EXTERNAL */
95 }
96
97 av_cold void ff_dsputil_init_x86(DSPContext *c, AVCodecContext *avctx,
98                                  unsigned high_bit_depth)
99 {
100     int cpu_flags = av_get_cpu_flags();
101
102     if (X86_MMX(cpu_flags))
103         dsputil_init_mmx(c, avctx, cpu_flags, high_bit_depth);
104
105     if (X86_MMXEXT(cpu_flags))
106         dsputil_init_mmxext(c, avctx, cpu_flags, high_bit_depth);
107
108     if (X86_SSE2(cpu_flags))
109         dsputil_init_sse2(c, avctx, cpu_flags, high_bit_depth);
110
111     if (CONFIG_ENCODERS)
112         ff_dsputilenc_init_mmx(c, avctx, high_bit_depth);
113 }