FFmpeg
rgb2rgb.c
Go to the documentation of this file.
1 /*
2  * software RGB to RGB converter
3  * pluralize by software PAL8 to RGB converter
4  * software YUV to YUV converter
5  * software YUV to RGB converter
6  * Written by Nick Kurshev.
7  * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
8  *
9  * This file is part of FFmpeg.
10  *
11  * FFmpeg is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * FFmpeg is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public
22  * License along with FFmpeg; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24  */
25 
26 #include <stdint.h>
27 
28 #include "config.h"
29 #include "libavutil/attributes.h"
30 #include "libavutil/x86/cpu.h"
31 #include "libavutil/cpu.h"
32 #include "libavutil/bswap.h"
33 #include "libavutil/mem_internal.h"
34 
35 #include "libswscale/rgb2rgb.h"
36 #include "libswscale/swscale.h"
37 #include "libswscale/swscale_internal.h"
38 
39 #if HAVE_INLINE_ASM
40 
41 DECLARE_ASM_CONST(8, uint64_t, mmx_ff) = 0x00000000000000FFULL;
42 DECLARE_ASM_CONST(8, uint64_t, mmx_null) = 0x0000000000000000ULL;
43 DECLARE_ASM_CONST(8, uint64_t, mask32a) = 0xFF000000FF000000ULL;
44 DECLARE_ASM_CONST(8, uint64_t, mask3216br) = 0x00F800F800F800F8ULL;
45 DECLARE_ASM_CONST(8, uint64_t, mask3216g) = 0x0000FC000000FC00ULL;
46 DECLARE_ASM_CONST(8, uint64_t, mask3215g) = 0x0000F8000000F800ULL;
47 DECLARE_ASM_CONST(8, uint64_t, mul3216) = 0x2000000420000004ULL;
48 DECLARE_ASM_CONST(8, uint64_t, mul3215) = 0x2000000820000008ULL;
49 DECLARE_ASM_CONST(8, uint64_t, mask24b) = 0x00FF0000FF0000FFULL;
50 DECLARE_ASM_CONST(8, uint64_t, mask24g) = 0xFF0000FF0000FF00ULL;
51 DECLARE_ASM_CONST(8, uint64_t, mask24r) = 0x0000FF0000FF0000ULL;
52 DECLARE_ASM_CONST(8, uint64_t, mask24l) = 0x0000000000FFFFFFULL;
53 DECLARE_ASM_CONST(8, uint64_t, mask24h) = 0x0000FFFFFF000000ULL;
54 DECLARE_ASM_CONST(8, uint64_t, mask15b) = 0x001F001F001F001FULL; /* 00000000 00011111 xxB */
55 DECLARE_ASM_CONST(8, uint64_t, mask15rg) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000 RGx */
56 DECLARE_ASM_CONST(8, uint64_t, mask15s) = 0xFFE0FFE0FFE0FFE0ULL;
57 DECLARE_ASM_CONST(8, uint64_t, mask15g) = 0x03E003E003E003E0ULL;
58 DECLARE_ASM_CONST(8, uint64_t, mask15r) = 0x7C007C007C007C00ULL;
59 #define mask16b mask15b
60 DECLARE_ASM_CONST(8, uint64_t, mask16g) = 0x07E007E007E007E0ULL;
61 DECLARE_ASM_CONST(8, uint64_t, mask16r) = 0xF800F800F800F800ULL;
62 DECLARE_ASM_CONST(8, uint64_t, red_16mask) = 0x0000f8000000f800ULL;
63 DECLARE_ASM_CONST(8, uint64_t, green_16mask) = 0x000007e0000007e0ULL;
64 DECLARE_ASM_CONST(8, uint64_t, blue_16mask) = 0x0000001f0000001fULL;
65 DECLARE_ASM_CONST(8, uint64_t, red_15mask) = 0x00007c0000007c00ULL;
66 DECLARE_ASM_CONST(8, uint64_t, green_15mask) = 0x000003e0000003e0ULL;
67 DECLARE_ASM_CONST(8, uint64_t, blue_15mask) = 0x0000001f0000001fULL;
68 DECLARE_ASM_CONST(8, uint64_t, mul15_mid) = 0x4200420042004200ULL;
69 DECLARE_ASM_CONST(8, uint64_t, mul15_hi) = 0x0210021002100210ULL;
70 DECLARE_ASM_CONST(8, uint64_t, mul16_mid) = 0x2080208020802080ULL;
71 
72 DECLARE_ALIGNED(8, extern const uint64_t, ff_bgr2YOffset);
73 DECLARE_ALIGNED(8, extern const uint64_t, ff_w1111);
74 DECLARE_ALIGNED(8, extern const uint64_t, ff_bgr2UVOffset);
75 
76 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
77 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
78 #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
79 #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
80 #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
81 #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
82 #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
83 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
84 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
85 
86 // Note: We have C, MMX, MMXEXT, 3DNOW versions, there is no 3DNOW + MMXEXT one.
87 
88 #define COMPILE_TEMPLATE_SSE2 0
89 #define COMPILE_TEMPLATE_AVX 0
90 
91 // MMXEXT versions
92 #undef RENAME
93 #define RENAME(a) a ## _mmxext
94 #include "rgb2rgb_template.c"
95 
96 //SSE2 versions
97 #undef RENAME
98 #undef COMPILE_TEMPLATE_SSE2
99 #define COMPILE_TEMPLATE_SSE2 1
100 #define RENAME(a) a ## _sse2
101 #include "rgb2rgb_template.c"
102 
103 //AVX versions
104 #undef RENAME
105 #undef COMPILE_TEMPLATE_AVX
106 #define COMPILE_TEMPLATE_AVX 1
107 #define RENAME(a) a ## _avx
108 #include "rgb2rgb_template.c"
109 
110 /*
111  RGB15->RGB16 original by Strepto/Astral
112  ported to gcc & bugfixed : A'rpi
113  MMXEXT, 3DNOW optimization by Nick Kurshev
114  32-bit C version, and and&add trick by Michael Niedermayer
115 */
116 
117 #endif /* HAVE_INLINE_ASM */
118 
119 void ff_shuffle_bytes_2103_mmxext(const uint8_t *src, uint8_t *dst, int src_size);
120 void ff_shuffle_bytes_2103_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
121 void ff_shuffle_bytes_0321_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
122 void ff_shuffle_bytes_1230_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
123 void ff_shuffle_bytes_3012_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
124 void ff_shuffle_bytes_3210_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
125 
126 #if ARCH_X86_64
127 void ff_shuffle_bytes_2103_avx2(const uint8_t *src, uint8_t *dst, int src_size);
128 void ff_shuffle_bytes_0321_avx2(const uint8_t *src, uint8_t *dst, int src_size);
129 void ff_shuffle_bytes_1230_avx2(const uint8_t *src, uint8_t *dst, int src_size);
130 void ff_shuffle_bytes_3012_avx2(const uint8_t *src, uint8_t *dst, int src_size);
131 void ff_shuffle_bytes_3210_avx2(const uint8_t *src, uint8_t *dst, int src_size);
132 
133 void ff_uyvytoyuv422_sse2(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
134  const uint8_t *src, int width, int height,
135  int lumStride, int chromStride, int srcStride);
136 void ff_uyvytoyuv422_avx(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
137  const uint8_t *src, int width, int height,
138  int lumStride, int chromStride, int srcStride);
139 #endif
140 
141 av_cold void rgb2rgb_init_x86(void)
142 {
143  int cpu_flags = av_get_cpu_flags();
144 
145 #if HAVE_INLINE_ASM
146  if (INLINE_MMXEXT(cpu_flags))
147  rgb2rgb_init_mmxext();
148  if (INLINE_SSE2(cpu_flags))
149  rgb2rgb_init_sse2();
150  if (INLINE_AVX(cpu_flags))
151  rgb2rgb_init_avx();
152 #endif /* HAVE_INLINE_ASM */
153 
154  if (EXTERNAL_MMXEXT(cpu_flags)) {
155  shuffle_bytes_2103 = ff_shuffle_bytes_2103_mmxext;
156  }
157  if (EXTERNAL_SSE2(cpu_flags)) {
158 #if ARCH_X86_64
159  uyvytoyuv422 = ff_uyvytoyuv422_sse2;
160 #endif
161  }
162  if (EXTERNAL_SSSE3(cpu_flags)) {
163  shuffle_bytes_0321 = ff_shuffle_bytes_0321_ssse3;
164  shuffle_bytes_2103 = ff_shuffle_bytes_2103_ssse3;
165  shuffle_bytes_1230 = ff_shuffle_bytes_1230_ssse3;
166  shuffle_bytes_3012 = ff_shuffle_bytes_3012_ssse3;
167  shuffle_bytes_3210 = ff_shuffle_bytes_3210_ssse3;
168  }
169 #if ARCH_X86_64
170  if (EXTERNAL_AVX2_FAST(cpu_flags)) {
171  shuffle_bytes_0321 = ff_shuffle_bytes_0321_avx2;
172  shuffle_bytes_2103 = ff_shuffle_bytes_2103_avx2;
173  shuffle_bytes_1230 = ff_shuffle_bytes_1230_avx2;
174  shuffle_bytes_3012 = ff_shuffle_bytes_3012_avx2;
175  shuffle_bytes_3210 = ff_shuffle_bytes_3210_avx2;
176  }
177  if (EXTERNAL_AVX(cpu_flags)) {
178  uyvytoyuv422 = ff_uyvytoyuv422_avx;
179  }
180 #endif
181 }
shuffle_bytes_3012
void(* shuffle_bytes_3012)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:57
cpu.h
mem_internal.h
ff_shuffle_bytes_3210_ssse3
void ff_shuffle_bytes_3210_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
EXTERNAL_AVX2_FAST
#define EXTERNAL_AVX2_FAST(flags)
Definition: cpu.h:79
shuffle_bytes_3210
void(* shuffle_bytes_3210)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:58
DECLARE_ASM_CONST
#define DECLARE_ASM_CONST(n, t, v)
Definition: mem_internal.h:87
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:103
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:52
ff_shuffle_bytes_0321_ssse3
void ff_shuffle_bytes_0321_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
av_cold
#define av_cold
Definition: attributes.h:90
ff_shuffle_bytes_3012_ssse3
void ff_shuffle_bytes_3012_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
width
#define width
INLINE_SSE2
#define INLINE_SSE2(flags)
Definition: cpu.h:90
shuffle_bytes_1230
void(* shuffle_bytes_1230)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:56
shuffle_bytes_2103
void(* shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:55
ff_shuffle_bytes_2103_mmxext
void ff_shuffle_bytes_2103_mmxext(const uint8_t *src, uint8_t *dst, int src_size)
INLINE_AVX
#define INLINE_AVX(flags)
Definition: cpu.h:101
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Definition: mem_internal.h:109
cpu.h
rgb2rgb_init_x86
av_cold void rgb2rgb_init_x86(void)
Definition: rgb2rgb.c:141
shuffle_bytes_0321
void(* shuffle_bytes_0321)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:54
height
#define height
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
uyvytoyuv422
void(* uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, int width, int height, int lumStride, int chromStride, int srcStride)
Definition: rgb2rgb.c:107
swscale_internal.h
bswap.h
EXTERNAL_AVX
#define EXTERNAL_AVX(flags)
Definition: cpu.h:70
INLINE_MMXEXT
#define INLINE_MMXEXT(flags)
Definition: cpu.h:88
ff_shuffle_bytes_1230_ssse3
void ff_shuffle_bytes_1230_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
ff_shuffle_bytes_2103_ssse3
void ff_shuffle_bytes_2103_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
EXTERNAL_SSSE3
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:65
EXTERNAL_MMXEXT
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:57
rgb2rgb.h
swscale.h
Generated on Thu Sep 26 2024 23:15:57 for FFmpeg by   doxygen 1.8.17