2 * Format Conversion Utils
3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
6 * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
8 * This file is part of FFmpeg.
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libavutil/attributes.h"
26 #include "libavutil/cpu.h"
27 #include "libavutil/x86/asm.h"
28 #include "libavutil/x86/cpu.h"
29 #include "libavcodec/fmtconvert.h"
33 void ff_int32_to_float_fmul_scalar_sse (float *dst
, const int32_t *src
, float mul
, int len
);
34 void ff_int32_to_float_fmul_scalar_sse2(float *dst
, const int32_t *src
, float mul
, int len
);
35 void ff_int32_to_float_fmul_array8_sse (FmtConvertContext
*c
, float *dst
, const int32_t *src
,
36 const float *mul
, int len
);
37 void ff_int32_to_float_fmul_array8_sse2(FmtConvertContext
*c
, float *dst
, const int32_t *src
,
38 const float *mul
, int len
);
40 void ff_float_to_int16_3dnow(int16_t *dst
, const float *src
, long len
);
41 void ff_float_to_int16_sse (int16_t *dst
, const float *src
, long len
);
42 void ff_float_to_int16_sse2 (int16_t *dst
, const float *src
, long len
);
44 void ff_float_to_int16_step_3dnow(int16_t *dst
, const float *src
, long len
, long step
);
45 void ff_float_to_int16_step_sse (int16_t *dst
, const float *src
, long len
, long step
);
46 void ff_float_to_int16_step_sse2 (int16_t *dst
, const float *src
, long len
, long step
);
48 void ff_float_to_int16_interleave2_3dnow(int16_t *dst
, const float **src
, long len
);
49 void ff_float_to_int16_interleave2_sse (int16_t *dst
, const float **src
, long len
);
50 void ff_float_to_int16_interleave2_sse2 (int16_t *dst
, const float **src
, long len
);
52 void ff_float_to_int16_interleave6_sse(int16_t *dst
, const float **src
, int len
);
53 void ff_float_to_int16_interleave6_3dnow(int16_t *dst
, const float **src
, int len
);
54 void ff_float_to_int16_interleave6_3dnowext(int16_t *dst
, const float **src
, int len
);
56 #define ff_float_to_int16_interleave6_sse2 ff_float_to_int16_interleave6_sse
58 #define FLOAT_TO_INT16_INTERLEAVE(cpu) \
59 /* gcc pessimizes register allocation if this is in the same function as float_to_int16_interleave_sse2*/\
60 static av_noinline void float_to_int16_interleave_misc_##cpu(int16_t *dst, const float **src, long len, int channels){\
62 for(c=0; c<channels; c++){\
63 ff_float_to_int16_step_##cpu(dst+c, src[c], len, channels);\
67 static void float_to_int16_interleave_##cpu(int16_t *dst, const float **src, long len, int channels){\
69 ff_float_to_int16_##cpu(dst, src[0], len);\
70 else if(channels==2){\
71 ff_float_to_int16_interleave2_##cpu(dst, src, len);\
72 }else if(channels==6){\
73 ff_float_to_int16_interleave6_##cpu(dst, src, len);\
75 float_to_int16_interleave_misc_##cpu(dst, src, len, channels);\
78 FLOAT_TO_INT16_INTERLEAVE(3dnow
)
79 FLOAT_TO_INT16_INTERLEAVE(sse
)
80 FLOAT_TO_INT16_INTERLEAVE(sse2
)
82 static void float_to_int16_interleave_3dnowext(int16_t *dst
, const float **src
,
83 long len
, int channels
)
86 ff_float_to_int16_interleave6_3dnowext(dst
, src
, len
);
88 float_to_int16_interleave_3dnow(dst
, src
, len
, channels
);
91 void ff_float_interleave2_mmx(float *dst
, const float **src
, unsigned int len
);
92 void ff_float_interleave2_sse(float *dst
, const float **src
, unsigned int len
);
94 void ff_float_interleave6_mmx(float *dst
, const float **src
, unsigned int len
);
95 void ff_float_interleave6_sse(float *dst
, const float **src
, unsigned int len
);
97 static void float_interleave_mmx(float *dst
, const float **src
,
98 unsigned int len
, int channels
)
101 ff_float_interleave2_mmx(dst
, src
, len
);
102 } else if (channels
== 6)
103 ff_float_interleave6_mmx(dst
, src
, len
);
105 ff_float_interleave_c(dst
, src
, len
, channels
);
108 static void float_interleave_sse(float *dst
, const float **src
,
109 unsigned int len
, int channels
)
112 ff_float_interleave2_sse(dst
, src
, len
);
113 } else if (channels
== 6)
114 ff_float_interleave6_sse(dst
, src
, len
);
116 ff_float_interleave_c(dst
, src
, len
, channels
);
118 #endif /* HAVE_YASM */
120 av_cold
void ff_fmt_convert_init_x86(FmtConvertContext
*c
, AVCodecContext
*avctx
)
123 int cpu_flags
= av_get_cpu_flags();
125 if (EXTERNAL_MMX(cpu_flags
)) {
126 c
->float_interleave
= float_interleave_mmx
;
128 if (EXTERNAL_AMD3DNOW(cpu_flags
)) {
129 if (!(avctx
->flags
& CODEC_FLAG_BITEXACT
)) {
130 c
->float_to_int16
= ff_float_to_int16_3dnow
;
131 c
->float_to_int16_interleave
= float_to_int16_interleave_3dnow
;
134 if (EXTERNAL_AMD3DNOWEXT(cpu_flags
)) {
135 if (!(avctx
->flags
& CODEC_FLAG_BITEXACT
)) {
136 c
->float_to_int16_interleave
= float_to_int16_interleave_3dnowext
;
139 if (EXTERNAL_SSE(cpu_flags
)) {
140 c
->int32_to_float_fmul_scalar
= ff_int32_to_float_fmul_scalar_sse
;
141 c
->int32_to_float_fmul_array8
= ff_int32_to_float_fmul_array8_sse
;
142 c
->float_to_int16
= ff_float_to_int16_sse
;
143 c
->float_to_int16_interleave
= float_to_int16_interleave_sse
;
144 c
->float_interleave
= float_interleave_sse
;
146 if (EXTERNAL_SSE2(cpu_flags
)) {
147 c
->int32_to_float_fmul_scalar
= ff_int32_to_float_fmul_scalar_sse2
;
148 c
->int32_to_float_fmul_array8
= ff_int32_to_float_fmul_array8_sse2
;
149 c
->float_to_int16
= ff_float_to_int16_sse2
;
150 c
->float_to_int16_interleave
= float_to_int16_interleave_sse2
;
152 #endif /* HAVE_YASM */