FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/x86/idctdsp_init.c
Date: 2022-12-09 07:38:14
Exec Total Coverage
Lines: 46 68 67.6%
Functions: 2 2 100.0%
Branches: 38 59 64.4%

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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 "libavutil/attributes.h"
21 #include "libavutil/cpu.h"
22 #include "libavutil/x86/cpu.h"
23 #include "libavcodec/avcodec.h"
24 #include "libavcodec/idctdsp.h"
25 #include "idctdsp.h"
26 #include "simple_idct.h"
27
28 /* Input permutation for the simple_idct_mmx */
29 static const uint8_t simple_mmx_permutation[64] = {
30 0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D,
31 0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D,
32 0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D,
33 0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F,
34 0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F,
35 0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D,
36 0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F,
37 0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
38 };
39
40 static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
41
42 1903 av_cold int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
43 enum idct_permutation_type perm_type)
44 {
45 int i;
46
47
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1903 switch (perm_type) {
48 case FF_IDCT_PERM_SIMPLE:
49 for (i = 0; i < 64; i++)
50 idct_permutation[i] = simple_mmx_permutation[i];
51 return 1;
52 4 case FF_IDCT_PERM_SSE2:
53
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260 for (i = 0; i < 64; i++)
54 256 idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];
55 4 return 1;
56 }
57
58 1899 return 0;
59 }
60
61 1699 av_cold void ff_idctdsp_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
62 unsigned high_bit_depth)
63 {
64 1699 int cpu_flags = av_get_cpu_flags();
65
66 #if ARCH_X86_32
67 if (EXTERNAL_MMX(cpu_flags)) {
68 if (!high_bit_depth &&
69 avctx->lowres == 0 &&
70 (avctx->idct_algo == FF_IDCT_AUTO ||
71 avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
72 avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
73 c->idct = ff_simple_idct_mmx;
74 }
75 }
76 #endif
77
78
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1699 if (EXTERNAL_SSE2(cpu_flags)) {
79 324 c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_sse2;
80 324 c->put_pixels_clamped = ff_put_pixels_clamped_sse2;
81 324 c->add_pixels_clamped = ff_add_pixels_clamped_sse2;
82
83 #if ARCH_X86_32
84 if (!high_bit_depth &&
85 avctx->lowres == 0 &&
86 (avctx->idct_algo == FF_IDCT_AUTO ||
87 avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
88 avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
89 c->idct_put = ff_simple_idct_put_sse2;
90 c->idct_add = ff_simple_idct_add_sse2;
91 c->perm_type = FF_IDCT_PERM_SIMPLE;
92 }
93 #endif
94
95
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324 if (ARCH_X86_64 &&
96 324 !high_bit_depth &&
97
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324 avctx->lowres == 0 &&
98
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324 (avctx->idct_algo == FF_IDCT_AUTO ||
99
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3 avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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3 avctx->idct_algo == FF_IDCT_SIMPLEMMX ||
101
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3 avctx->idct_algo == FF_IDCT_SIMPLE)) {
102 322 c->idct = ff_simple_idct8_sse2;
103 322 c->idct_put = ff_simple_idct8_put_sse2;
104 322 c->idct_add = ff_simple_idct8_add_sse2;
105 322 c->perm_type = FF_IDCT_PERM_TRANSPOSE;
106 }
107 }
108
109
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1699 if (ARCH_X86_64 && avctx->lowres == 0) {
110
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1698 if (EXTERNAL_AVX(cpu_flags) &&
111 318 !high_bit_depth &&
112
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318 (avctx->idct_algo == FF_IDCT_AUTO ||
113
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3 avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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3 avctx->idct_algo == FF_IDCT_SIMPLEMMX ||
115
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3 avctx->idct_algo == FF_IDCT_SIMPLE)) {
116 316 c->idct = ff_simple_idct8_avx;
117 316 c->idct_put = ff_simple_idct8_put_avx;
118 316 c->idct_add = ff_simple_idct8_add_avx;
119 316 c->perm_type = FF_IDCT_PERM_TRANSPOSE;
120 }
121
122
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1698 if (avctx->bits_per_raw_sample == 10 &&
123
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25 avctx->codec_id != AV_CODEC_ID_MPEG4 &&
124
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23 (avctx->idct_algo == FF_IDCT_AUTO ||
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23 avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
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23 avctx->idct_algo == FF_IDCT_SIMPLE)) {
127
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23 if (EXTERNAL_SSE2(cpu_flags)) {
128 c->idct_put = ff_simple_idct10_put_sse2;
129 c->idct_add = NULL;
130 c->idct = ff_simple_idct10_sse2;
131 c->perm_type = FF_IDCT_PERM_TRANSPOSE;
132
133 }
134
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23 if (EXTERNAL_AVX(cpu_flags)) {
135 c->idct_put = ff_simple_idct10_put_avx;
136 c->idct_add = NULL;
137 c->idct = ff_simple_idct10_avx;
138 c->perm_type = FF_IDCT_PERM_TRANSPOSE;
139 }
140 }
141
142
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1698 if (avctx->bits_per_raw_sample == 12 &&
143
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4 (avctx->idct_algo == FF_IDCT_AUTO ||
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4 avctx->idct_algo == FF_IDCT_SIMPLEMMX)) {
145 if (EXTERNAL_SSE2(cpu_flags)) {
146 c->idct_put = ff_simple_idct12_put_sse2;
147 c->idct_add = NULL;
148 c->idct = ff_simple_idct12_sse2;
149 c->perm_type = FF_IDCT_PERM_TRANSPOSE;
150 }
151 if (EXTERNAL_AVX(cpu_flags)) {
152 c->idct_put = ff_simple_idct12_put_avx;
153 c->idct_add = NULL;
154 c->idct = ff_simple_idct12_avx;
155 c->perm_type = FF_IDCT_PERM_TRANSPOSE;
156 }
157 }
158 }
159 1699 }
160