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Imported Debian version 2.5.0~trusty1.1
[deb_ffmpeg.git] / ffmpeg / libavcodec / x86 / mpegvideoenc.c
CommitLineData
2ba45a60
DM		 1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
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/asm.h"
25#include "libavutil/x86/cpu.h"
26#include "libavcodec/avcodec.h"
27#include "libavcodec/dct.h"
28#include "libavcodec/mpegvideo.h"
29
30/* not permutated inverse zigzag_direct + 1 for MMX quantizer */
31DECLARE_ALIGNED(16, static uint16_t, inv_zigzag_direct16)[64];
32
33#if HAVE_6REGS
34
35#if HAVE_MMX_INLINE
36#define COMPILE_TEMPLATE_MMXEXT 0
37#define COMPILE_TEMPLATE_SSE2 0
38#define COMPILE_TEMPLATE_SSSE3 0
39#define RENAME(a) a ## _mmx
40#define RENAME_FDCT(a) a ## _mmx
41#include "mpegvideoenc_template.c"
42#endif /* HAVE_MMX_INLINE */
43
44#if HAVE_MMXEXT_INLINE
45#undef COMPILE_TEMPLATE_SSSE3
46#undef COMPILE_TEMPLATE_SSE2
47#undef COMPILE_TEMPLATE_MMXEXT
48#define COMPILE_TEMPLATE_MMXEXT 1
49#define COMPILE_TEMPLATE_SSE2 0
50#define COMPILE_TEMPLATE_SSSE3 0
51#undef RENAME
52#undef RENAME_FDCT
53#define RENAME(a) a ## _mmxext
54#define RENAME_FDCT(a) a ## _mmxext
55#include "mpegvideoenc_template.c"
56#endif /* HAVE_MMXEXT_INLINE */
57
58#if HAVE_SSE2_INLINE
59#undef COMPILE_TEMPLATE_MMXEXT
60#undef COMPILE_TEMPLATE_SSE2
61#undef COMPILE_TEMPLATE_SSSE3
62#define COMPILE_TEMPLATE_MMXEXT 0
63#define COMPILE_TEMPLATE_SSE2 1
64#define COMPILE_TEMPLATE_SSSE3 0
65#undef RENAME
66#undef RENAME_FDCT
67#define RENAME(a) a ## _sse2
68#define RENAME_FDCT(a) a ## _sse2
69#include "mpegvideoenc_template.c"
70#endif /* HAVE_SSE2_INLINE */
71
72#if HAVE_SSSE3_INLINE
73#undef COMPILE_TEMPLATE_MMXEXT
74#undef COMPILE_TEMPLATE_SSE2
75#undef COMPILE_TEMPLATE_SSSE3
76#define COMPILE_TEMPLATE_MMXEXT 0
77#define COMPILE_TEMPLATE_SSE2 1
78#define COMPILE_TEMPLATE_SSSE3 1
79#undef RENAME
80#undef RENAME_FDCT
81#define RENAME(a) a ## _ssse3
82#define RENAME_FDCT(a) a ## _sse2
83#include "mpegvideoenc_template.c"
84#endif /* HAVE_SSSE3_INLINE */
85
86#endif /* HAVE_6REGS */
87
88#if HAVE_INLINE_ASM
89static void denoise_dct_mmx(MpegEncContext *s, int16_t *block){
90 const int intra= s->mb_intra;
91 int *sum= s->dct_error_sum[intra];
92 uint16_t *offset= s->dct_offset[intra];
93
94 s->dct_count[intra]++;
95
96 __asm__ volatile(
97 "pxor %%mm7, %%mm7 \n\t"
98 "1: \n\t"
99 "pxor %%mm0, %%mm0 \n\t"
100 "pxor %%mm1, %%mm1 \n\t"
101 "movq (%0), %%mm2 \n\t"
102 "movq 8(%0), %%mm3 \n\t"
103 "pcmpgtw %%mm2, %%mm0 \n\t"
104 "pcmpgtw %%mm3, %%mm1 \n\t"
105 "pxor %%mm0, %%mm2 \n\t"
106 "pxor %%mm1, %%mm3 \n\t"
107 "psubw %%mm0, %%mm2 \n\t"
108 "psubw %%mm1, %%mm3 \n\t"
109 "movq %%mm2, %%mm4 \n\t"
110 "movq %%mm3, %%mm5 \n\t"
111 "psubusw (%2), %%mm2 \n\t"
112 "psubusw 8(%2), %%mm3 \n\t"
113 "pxor %%mm0, %%mm2 \n\t"
114 "pxor %%mm1, %%mm3 \n\t"
115 "psubw %%mm0, %%mm2 \n\t"
116 "psubw %%mm1, %%mm3 \n\t"
117 "movq %%mm2, (%0) \n\t"
118 "movq %%mm3, 8(%0) \n\t"
119 "movq %%mm4, %%mm2 \n\t"
120 "movq %%mm5, %%mm3 \n\t"
121 "punpcklwd %%mm7, %%mm4 \n\t"
122 "punpckhwd %%mm7, %%mm2 \n\t"
123 "punpcklwd %%mm7, %%mm5 \n\t"
124 "punpckhwd %%mm7, %%mm3 \n\t"
125 "paddd (%1), %%mm4 \n\t"
126 "paddd 8(%1), %%mm2 \n\t"
127 "paddd 16(%1), %%mm5 \n\t"
128 "paddd 24(%1), %%mm3 \n\t"
129 "movq %%mm4, (%1) \n\t"
130 "movq %%mm2, 8(%1) \n\t"
131 "movq %%mm5, 16(%1) \n\t"
132 "movq %%mm3, 24(%1) \n\t"
133 "add $16, %0 \n\t"
134 "add $32, %1 \n\t"
135 "add $16, %2 \n\t"
136 "cmp %3, %0 \n\t"
137 " jb 1b \n\t"
138 : "+r" (block), "+r" (sum), "+r" (offset)
139 : "r"(block+64)
140 );
141}
142
143static void denoise_dct_sse2(MpegEncContext *s, int16_t *block){
144 const int intra= s->mb_intra;
145 int *sum= s->dct_error_sum[intra];
146 uint16_t *offset= s->dct_offset[intra];
147
148 s->dct_count[intra]++;
149
150 __asm__ volatile(
151 "pxor %%xmm7, %%xmm7 \n\t"
152 "1: \n\t"
153 "pxor %%xmm0, %%xmm0 \n\t"
154 "pxor %%xmm1, %%xmm1 \n\t"
155 "movdqa (%0), %%xmm2 \n\t"
156 "movdqa 16(%0), %%xmm3 \n\t"
157 "pcmpgtw %%xmm2, %%xmm0 \n\t"
158 "pcmpgtw %%xmm3, %%xmm1 \n\t"
159 "pxor %%xmm0, %%xmm2 \n\t"
160 "pxor %%xmm1, %%xmm3 \n\t"
161 "psubw %%xmm0, %%xmm2 \n\t"
162 "psubw %%xmm1, %%xmm3 \n\t"
163 "movdqa %%xmm2, %%xmm4 \n\t"
164 "movdqa %%xmm3, %%xmm5 \n\t"
165 "psubusw (%2), %%xmm2 \n\t"
166 "psubusw 16(%2), %%xmm3 \n\t"
167 "pxor %%xmm0, %%xmm2 \n\t"
168 "pxor %%xmm1, %%xmm3 \n\t"
169 "psubw %%xmm0, %%xmm2 \n\t"
170 "psubw %%xmm1, %%xmm3 \n\t"
171 "movdqa %%xmm2, (%0) \n\t"
172 "movdqa %%xmm3, 16(%0) \n\t"
173 "movdqa %%xmm4, %%xmm6 \n\t"
174 "movdqa %%xmm5, %%xmm0 \n\t"
175 "punpcklwd %%xmm7, %%xmm4 \n\t"
176 "punpckhwd %%xmm7, %%xmm6 \n\t"
177 "punpcklwd %%xmm7, %%xmm5 \n\t"
178 "punpckhwd %%xmm7, %%xmm0 \n\t"
179 "paddd (%1), %%xmm4 \n\t"
180 "paddd 16(%1), %%xmm6 \n\t"
181 "paddd 32(%1), %%xmm5 \n\t"
182 "paddd 48(%1), %%xmm0 \n\t"
183 "movdqa %%xmm4, (%1) \n\t"
184 "movdqa %%xmm6, 16(%1) \n\t"
185 "movdqa %%xmm5, 32(%1) \n\t"
186 "movdqa %%xmm0, 48(%1) \n\t"
187 "add $32, %0 \n\t"
188 "add $64, %1 \n\t"
189 "add $32, %2 \n\t"
190 "cmp %3, %0 \n\t"
191 " jb 1b \n\t"
192 : "+r" (block), "+r" (sum), "+r" (offset)
193 : "r"(block+64)
194 XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
195 "%xmm4", "%xmm5", "%xmm6", "%xmm7")
196 );
197}
198#endif /* HAVE_INLINE_ASM */
199
200av_cold void ff_dct_encode_init_x86(MpegEncContext *s)
201{
202 const int dct_algo = s->avctx->dct_algo;
203 int i;
204
205 for (i = 0; i < 64; i++)
206 inv_zigzag_direct16[ff_zigzag_direct[i]] = i + 1;
207
208 if (dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX) {
209#if HAVE_MMX_INLINE
210 int cpu_flags = av_get_cpu_flags();
211 if (INLINE_MMX(cpu_flags)) {
212#if HAVE_6REGS
213 s->dct_quantize = dct_quantize_mmx;
214#endif
215 s->denoise_dct = denoise_dct_mmx;
216 }
217#endif
218#if HAVE_6REGS && HAVE_MMXEXT_INLINE
219 if (INLINE_MMXEXT(cpu_flags))
220 s->dct_quantize = dct_quantize_mmxext;
221#endif
222#if HAVE_SSE2_INLINE
223 if (INLINE_SSE2(cpu_flags)) {
224#if HAVE_6REGS
225 s->dct_quantize = dct_quantize_sse2;
226#endif
227 s->denoise_dct = denoise_dct_sse2;
228 }
229#endif
230#if HAVE_6REGS && HAVE_SSSE3_INLINE
231 if (INLINE_SSSE3(cpu_flags))
232 s->dct_quantize = dct_quantize_ssse3;
233#endif
234 }
235}
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