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 #include "config_components.h"
21 
22 #include "libavutil/cpu.h"
23 #include "libavutil/mem_internal.h"
24 
25 #include "libavcodec/x86/fdct.h"
28 
29 #if (CONFIG_PRORES_DECODER || CONFIG_PRORES_LGPL_DECODER) && ARCH_X86_64 && HAVE_X86ASM
30 void ff_prores_idct_put_10_sse2(uint16_t *dst, int linesize,
31  int16_t *block, int16_t *qmat);
32 
33 #define PR_WRAP(INSN) \
34 static void ff_prores_idct_put_10_##INSN##_wrap(int16_t *dst){ \
35  LOCAL_ALIGNED(16, int16_t, qmat, [64]); \
36  LOCAL_ALIGNED(16, int16_t, tmp, [64]); \
37  int i; \
38  \
39  for(i=0; i<64; i++){ \
40  qmat[i]=4; \
41  tmp[i]= dst[i]; \
42  } \
43  ff_prores_idct_put_10_##INSN (dst, 16, tmp, qmat); \
44  \
45  for(i=0; i<64; i++) { \
46  dst[i] -= 512; \
47  } \
48 }
49 
50 PR_WRAP(sse2)
51 
52 # if HAVE_AVX_EXTERNAL
53 void ff_prores_idct_put_10_avx(uint16_t *dst, int linesize,
54  int16_t *block, int16_t *qmat);
55 PR_WRAP(avx)
56 # endif
57 
58 #endif
59 
60 static const struct algo fdct_tab_arch[] = {
61 #if HAVE_SSE2_INLINE
63 #endif
64  { 0 }
65 };
66 
67 static const struct algo idct_tab_arch[] = {
68 #if CONFIG_MPEG4_DECODER && HAVE_X86ASM
69 #if HAVE_SSE2_EXTERNAL
71 #endif
72 #endif /* CONFIG_MPEG4_DECODER && HAVE_X86ASM */
73 #if (CONFIG_PRORES_DECODER || CONFIG_PRORES_LGPL_DECODER) && ARCH_X86_64 && HAVE_X86ASM
74  { "PR-SSE2", ff_prores_idct_put_10_sse2_wrap, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_SSE2, 1 },
75 # if HAVE_AVX_EXTERNAL
76  { "PR-AVX", ff_prores_idct_put_10_avx_wrap, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_AVX, 1 },
77 # endif
78 #endif
79 #if HAVE_X86ASM
80 #if ARCH_X86_64
81 #if HAVE_SSE2_EXTERNAL
85 #endif
86 #if HAVE_AVX_EXTERNAL
90 #endif
91 #endif
92 #endif
93  { 0 }
94 };
95 
96 static const uint8_t idct_simple_mmx_perm[64] = {
97  0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
98  0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
99  0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
100  0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
101  0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
102  0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
103  0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
104  0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
105 };
106 
107 static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
108 
109 static int permute_x86(int16_t dst[64], const int16_t src[64],
111 {
112  int i;
113 
114  switch (perm_type) {
115  case FF_IDCT_PERM_SIMPLE:
116  for (i = 0; i < 64; i++)
117  dst[idct_simple_mmx_perm[i]] = src[i];
118  return 1;
119  case FF_IDCT_PERM_SSE2:
120  for (i = 0; i < 64; i++)
121  dst[(i & 0x38) | idct_sse2_row_perm[i & 7]] = src[i];
122  return 1;
123  }
124 
125  return 0;
126 }
ff_simple_idct12_avx
void ff_simple_idct12_avx(int16_t *block)
mem_internal.h
fdct.h
idct_sse2_row_perm
static const uint8_t idct_sse2_row_perm[8]
Definition: dct.c:107
ff_simple_idct10_avx
void ff_simple_idct10_avx(int16_t *block)
xvididct.h
ff_fdct_sse2
void ff_fdct_sse2(int16_t *block)
ff_simple_idct8_avx
void ff_simple_idct8_avx(int16_t *block)
idct_tab_arch
static const struct algo idct_tab_arch[]
Definition: dct.c:67
AV_CPU_FLAG_SSE2
#define AV_CPU_FLAG_SSE2
PIV SSE2 functions.
Definition: cpu.h:34
idct_simple_mmx_perm
static const uint8_t idct_simple_mmx_perm[64]
Definition: dct.c:96
AV_CPU_FLAG_AVX
#define AV_CPU_FLAG_AVX
AVX functions: requires OS support even if YMM registers aren't used.
Definition: cpu.h:47
ff_prores_idct_put_10_avx
void ff_prores_idct_put_10_avx(uint16_t *dst, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
cpu.h
FF_IDCT_PERM_NONE
@ FF_IDCT_PERM_NONE
Definition: idctdsp.h:30
ff_xvid_idct_sse2
void ff_xvid_idct_sse2(short *block)
ff_simple_idct12_sse2
void ff_simple_idct12_sse2(int16_t *block)
permute_x86
static int permute_x86(int16_t dst[64], const int16_t src[64], enum idct_permutation_type perm_type)
Definition: dct.c:109
ff_prores_idct_put_10_sse2
void ff_prores_idct_put_10_sse2(uint16_t *dst, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:244
algo
Definition: dct.c:56
FF_IDCT_PERM_TRANSPOSE
@ FF_IDCT_PERM_TRANSPOSE
Definition: idctdsp.h:33
simple_idct.h
FF_IDCT_PERM_SSE2
@ FF_IDCT_PERM_SSE2
Definition: idctdsp.h:35
idct_permutation_type
idct_permutation_type
Definition: idctdsp.h:29
ff_simple_idct10_sse2
void ff_simple_idct10_sse2(int16_t *block)
algo::perm_type
enum idct_permutation_type perm_type
Definition: dct.c:59
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
ff_simple_idct8_sse2
void ff_simple_idct8_sse2(int16_t *block)
FF_IDCT_PERM_SIMPLE
@ FF_IDCT_PERM_SIMPLE
Definition: idctdsp.h:32
fdct_tab_arch
static const struct algo fdct_tab_arch[]
Definition: dct.c:60