1 /*
2 * RV30/40 MMX/SSE2 optimizations
3 * Copyright (C) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
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 "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/rv34dsp.h"
26
27 void ff_rv34_idct_dc_mmxext(int16_t *block);
28 void ff_rv34_idct_dc_noround_mmxext(int16_t *block);
29 void ff_rv34_idct_dc_add_mmx(uint8_t *dst, ptrdiff_t stride, int dc);
30 void ff_rv34_idct_dc_add_sse2(uint8_t *dst, ptrdiff_t stride, int dc);
31 void ff_rv34_idct_dc_add_sse4(uint8_t *dst, ptrdiff_t stride, int dc);
32 void ff_rv34_idct_add_mmxext(uint8_t *dst, ptrdiff_t stride, int16_t *block);
33
ff_rv34dsp_init_x86(RV34DSPContext * c)34 av_cold void ff_rv34dsp_init_x86(RV34DSPContext* c)
35 {
36 int cpu_flags = av_get_cpu_flags();
37
38 if (ARCH_X86_32 && EXTERNAL_MMX(cpu_flags))
39 c->rv34_idct_dc_add = ff_rv34_idct_dc_add_mmx;
40 if (EXTERNAL_MMXEXT(cpu_flags)) {
41 c->rv34_inv_transform_dc = ff_rv34_idct_dc_noround_mmxext;
42 c->rv34_idct_add = ff_rv34_idct_add_mmxext;
43 }
44 if (EXTERNAL_SSE2(cpu_flags))
45 c->rv34_idct_dc_add = ff_rv34_idct_dc_add_sse2;
46 if (EXTERNAL_SSE4(cpu_flags))
47 c->rv34_idct_dc_add = ff_rv34_idct_dc_add_sse4;
48 }
49