FFmpeg
dct.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "config.h"
20 
21 #include "libavcodec/x86/fdct.h"
24 
25 #if (CONFIG_PRORES_DECODER || CONFIG_PRORES_LGPL_DECODER) && ARCH_X86_64 && HAVE_X86ASM
26 void ff_prores_idct_put_10_sse2(uint16_t *dst, int linesize,
27  int16_t *block, int16_t *qmat);
28 
29 #define PR_WRAP(INSN) \
30 static void ff_prores_idct_put_10_##INSN##_wrap(int16_t *dst){ \
31  LOCAL_ALIGNED(16, int16_t, qmat, [64]); \
32  LOCAL_ALIGNED(16, int16_t, tmp, [64]); \
33  int i; \
34  \
35  for(i=0; i<64; i++){ \
36  qmat[i]=4; \
37  tmp[i]= dst[i]; \
38  } \
39  ff_prores_idct_put_10_##INSN (dst, 16, tmp, qmat); \
40  \
41  for(i=0; i<64; i++) { \
42  dst[i] -= 512; \
43  } \
44 }
45 
46 PR_WRAP(sse2)
47 
48 # if HAVE_AVX_EXTERNAL
49 void ff_prores_idct_put_10_avx(uint16_t *dst, int linesize,
50  int16_t *block, int16_t *qmat);
51 PR_WRAP(avx)
52 # endif
53 
54 #endif
55 
56 static const struct algo fdct_tab_arch[] = {
57 #if HAVE_MMX_INLINE
59 #endif
60 #if HAVE_MMXEXT_INLINE
62 #endif
63 #if HAVE_SSE2_INLINE
65 #endif
66  { 0 }
67 };
68 
69 static const struct algo idct_tab_arch[] = {
70 #if HAVE_MMX_EXTERNAL
72 #endif
73 #if CONFIG_MPEG4_DECODER && HAVE_X86ASM
74 #if ARCH_X86_32
77 #endif
78 #if HAVE_SSE2_EXTERNAL
80 #endif
81 #endif /* CONFIG_MPEG4_DECODER && HAVE_X86ASM */
82 #if (CONFIG_PRORES_DECODER || CONFIG_PRORES_LGPL_DECODER) && ARCH_X86_64 && HAVE_X86ASM
83  { "PR-SSE2", ff_prores_idct_put_10_sse2_wrap, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_SSE2, 1 },
84 # if HAVE_AVX_EXTERNAL
85  { "PR-AVX", ff_prores_idct_put_10_avx_wrap, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_AVX, 1 },
86 # endif
87 #endif
88 #if HAVE_X86ASM
89 #if ARCH_X86_64
90 #if HAVE_SSE2_EXTERNAL
92  { "SIMPLE10-SSE2", ff_simple_idct10_sse2, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_SSE2},
94 #endif
95 #if HAVE_AVX_EXTERNAL
97  { "SIMPLE10-AVX", ff_simple_idct10_avx, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_AVX},
99 #endif
100 #endif
101 #endif
102  { 0 }
103 };
104 
105 static const uint8_t idct_simple_mmx_perm[64] = {
106  0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
107  0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
108  0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
109  0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
110  0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
111  0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
112  0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
113  0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
114 };
115 
116 static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
117 
118 static int permute_x86(int16_t dst[64], const int16_t src[64],
120 {
121  int i;
122 
123  switch (perm_type) {
124  case FF_IDCT_PERM_SIMPLE:
125  for (i = 0; i < 64; i++)
126  dst[idct_simple_mmx_perm[i]] = src[i];
127  return 1;
128  case FF_IDCT_PERM_SSE2:
129  for (i = 0; i < 64; i++)
130  dst[(i & 0x38) | idct_sse2_row_perm[i & 7]] = src[i];
131  return 1;
132  }
133 
134  return 0;
135 }
idct_permutation_type
Definition: idctdsp.h:37
#define AV_CPU_FLAG_AVX
AVX functions: requires OS support even if YMM registers aren&#39;t used.
Definition: cpu.h:49
void ff_fdct_mmxext(int16_t *block)
static const uint8_t idct_simple_mmx_perm[64]
Definition: dct.c:105
#define src
Definition: vp8dsp.c:254
void ff_prores_idct_put_10_sse2(uint16_t *dst, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
void ff_simple_idct10_sse2(int16_t *block)
void ff_simple_idct8_sse2(int16_t *block)
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
static int permute_x86(int16_t dst[64], const int16_t src[64], enum idct_permutation_type perm_type)
Definition: dct.c:118
#define AV_CPU_FLAG_MMXEXT
SSE integer functions or AMD MMX ext.
Definition: cpu.h:32
void ff_fdct_sse2(int16_t *block)
static const uint8_t idct_sse2_row_perm[8]
Definition: dct.c:116
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
void ff_xvid_idct_mmxext(short *block)
void ff_simple_idct12_avx(int16_t *block)
Definition: dct.c:52
static const struct algo fdct_tab_arch[]
Definition: dct.c:56
void ff_prores_idct_put_10_avx(uint16_t *dst, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
void ff_xvid_idct_mmx(short *block)
void ff_fdct_mmx(int16_t *block)
void ff_simple_idct_mmx(int16_t *block)
void ff_simple_idct12_sse2(int16_t *block)
static const struct algo idct_tab_arch[]
Definition: dct.c:69
#define AV_CPU_FLAG_MMX
standard MMX
Definition: cpu.h:31
void ff_xvid_idct_sse2(short *block)
enum idct_permutation_type perm_type
Definition: dct.c:55
#define AV_CPU_FLAG_SSE2
PIV SSE2 functions.
Definition: cpu.h:36
header for Xvid IDCT functions
void ff_simple_idct10_avx(int16_t *block)
void ff_simple_idct8_avx(int16_t *block)