1 /*
2  * Copyright (c) 2009 David Conrad <lessen42@gmail.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdint.h>
22 
23 #include "libavutil/attributes.h"
24 #include "libavutil/cpu.h"
25 #include "libavutil/x86/cpu.h"
26 #include "libavcodec/avcodec.h"
27 #include "libavcodec/vp3dsp.h"
28 
29 void ff_vp3_idct_put_mmx(uint8_t *dest, ptrdiff_t stride, int16_t *block);
30 void ff_vp3_idct_add_mmx(uint8_t *dest, ptrdiff_t stride, int16_t *block);
31 
32 void ff_vp3_idct_put_sse2(uint8_t *dest, ptrdiff_t stride, int16_t *block);
33 void ff_vp3_idct_add_sse2(uint8_t *dest, ptrdiff_t stride, int16_t *block);
34 
35 void ff_vp3_idct_dc_add_mmxext(uint8_t *dest, ptrdiff_t stride, int16_t *block);
36 
37 void ff_vp3_v_loop_filter_mmxext(uint8_t *src, ptrdiff_t stride,
38                                  int *bounding_values);
39 void ff_vp3_h_loop_filter_mmxext(uint8_t *src, ptrdiff_t stride,
40                                  int *bounding_values);
41 
42 void ff_put_vp_no_rnd_pixels8_l2_mmx(uint8_t *dst, const uint8_t *a,
43                                      const uint8_t *b, ptrdiff_t stride,
44                                      int h);
45 
ff_vp3dsp_init_x86(VP3DSPContext * c,int flags)46 av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
47 {
48     int cpu_flags = av_get_cpu_flags();
49 
50     if (EXTERNAL_MMX(cpu_flags)) {
51         c->put_no_rnd_pixels_l2 = ff_put_vp_no_rnd_pixels8_l2_mmx;
52 #if ARCH_X86_32
53         c->idct_put  = ff_vp3_idct_put_mmx;
54         c->idct_add  = ff_vp3_idct_add_mmx;
55 #endif
56     }
57 
58     if (EXTERNAL_MMXEXT(cpu_flags)) {
59         c->idct_dc_add = ff_vp3_idct_dc_add_mmxext;
60 
61         if (!(flags & AV_CODEC_FLAG_BITEXACT)) {
62             c->v_loop_filter = c->v_loop_filter_unaligned = ff_vp3_v_loop_filter_mmxext;
63             c->h_loop_filter = c->v_loop_filter_unaligned = ff_vp3_h_loop_filter_mmxext;
64         }
65     }
66 
67     if (EXTERNAL_SSE2(cpu_flags)) {
68         c->idct_put  = ff_vp3_idct_put_sse2;
69         c->idct_add  = ff_vp3_idct_add_sse2;
70     }
71 }
72