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, mmx_one) = 0xFFFFFFFFFFFFFFFFULL;
44 DECLARE_ASM_CONST(8, uint64_t, mask32b) = 0x000000FF000000FFULL;
45 DECLARE_ASM_CONST(8, uint64_t, mask32g) = 0x0000FF000000FF00ULL;
46 DECLARE_ASM_CONST(8, uint64_t, mask32r) = 0x00FF000000FF0000ULL;
47 DECLARE_ASM_CONST(8, uint64_t, mask32a) = 0xFF000000FF000000ULL;
48 DECLARE_ASM_CONST(8, uint64_t, mask32) = 0x00FFFFFF00FFFFFFULL;
49 DECLARE_ASM_CONST(8, uint64_t, mask3216br) = 0x00F800F800F800F8ULL;
50 DECLARE_ASM_CONST(8, uint64_t, mask3216g) = 0x0000FC000000FC00ULL;
51 DECLARE_ASM_CONST(8, uint64_t, mask3215g) = 0x0000F8000000F800ULL;
52 DECLARE_ASM_CONST(8, uint64_t, mul3216) = 0x2000000420000004ULL;
53 DECLARE_ASM_CONST(8, uint64_t, mul3215) = 0x2000000820000008ULL;
54 DECLARE_ASM_CONST(8, uint64_t, mask24b) = 0x00FF0000FF0000FFULL;
55 DECLARE_ASM_CONST(8, uint64_t, mask24g) = 0xFF0000FF0000FF00ULL;
56 DECLARE_ASM_CONST(8, uint64_t, mask24r) = 0x0000FF0000FF0000ULL;
57 DECLARE_ASM_CONST(8, uint64_t, mask24l) = 0x0000000000FFFFFFULL;
58 DECLARE_ASM_CONST(8, uint64_t, mask24h) = 0x0000FFFFFF000000ULL;
59 DECLARE_ASM_CONST(8, uint64_t, mask24hh) = 0xffff000000000000ULL;
60 DECLARE_ASM_CONST(8, uint64_t, mask24hhh) = 0xffffffff00000000ULL;
61 DECLARE_ASM_CONST(8, uint64_t, mask24hhhh) = 0xffffffffffff0000ULL;
62 DECLARE_ASM_CONST(8, uint64_t, mask15b) = 0x001F001F001F001FULL; /* 00000000 00011111 xxB */
63 DECLARE_ASM_CONST(8, uint64_t, mask15rg) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000 RGx */
64 DECLARE_ASM_CONST(8, uint64_t, mask15s) = 0xFFE0FFE0FFE0FFE0ULL;
65 DECLARE_ASM_CONST(8, uint64_t, mask15g) = 0x03E003E003E003E0ULL;
66 DECLARE_ASM_CONST(8, uint64_t, mask15r) = 0x7C007C007C007C00ULL;
67 #define mask16b mask15b
68 DECLARE_ASM_CONST(8, uint64_t, mask16g) = 0x07E007E007E007E0ULL;
69 DECLARE_ASM_CONST(8, uint64_t, mask16r) = 0xF800F800F800F800ULL;
70 DECLARE_ASM_CONST(8, uint64_t, red_16mask) = 0x0000f8000000f800ULL;
71 DECLARE_ASM_CONST(8, uint64_t, green_16mask) = 0x000007e0000007e0ULL;
72 DECLARE_ASM_CONST(8, uint64_t, blue_16mask) = 0x0000001f0000001fULL;
73 DECLARE_ASM_CONST(8, uint64_t, red_15mask) = 0x00007c0000007c00ULL;
74 DECLARE_ASM_CONST(8, uint64_t, green_15mask) = 0x000003e0000003e0ULL;
75 DECLARE_ASM_CONST(8, uint64_t, blue_15mask) = 0x0000001f0000001fULL;
76 DECLARE_ASM_CONST(8, uint64_t, mul15_mid) = 0x4200420042004200ULL;
77 DECLARE_ASM_CONST(8, uint64_t, mul15_hi) = 0x0210021002100210ULL;
78 DECLARE_ASM_CONST(8, uint64_t, mul16_mid) = 0x2080208020802080ULL;
79 
80 DECLARE_ALIGNED(8, extern const uint64_t, ff_bgr2YOffset);
81 DECLARE_ALIGNED(8, extern const uint64_t, ff_w1111);
82 DECLARE_ALIGNED(8, extern const uint64_t, ff_bgr2UVOffset);
83 
84 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
85 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
86 #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
87 #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
88 #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
89 #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
90 #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
91 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
92 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
93 
94 // Note: We have C, MMX, MMXEXT, 3DNOW versions, there is no 3DNOW + MMXEXT one.
95 
96 #define COMPILE_TEMPLATE_MMXEXT 0
97 #define COMPILE_TEMPLATE_AMD3DNOW 0
98 #define COMPILE_TEMPLATE_SSE2 0
99 #define COMPILE_TEMPLATE_AVX 0
100 
101 //MMX versions
102 #undef RENAME
103 #define RENAME(a) a ## _mmx
104 #include "rgb2rgb_template.c"
105 
106 // MMXEXT versions
107 #undef RENAME
108 #undef COMPILE_TEMPLATE_MMXEXT
109 #define COMPILE_TEMPLATE_MMXEXT 1
110 #define RENAME(a) a ## _mmxext
111 #include "rgb2rgb_template.c"
112 
113 //SSE2 versions
114 #undef RENAME
115 #undef COMPILE_TEMPLATE_SSE2
116 #define COMPILE_TEMPLATE_SSE2 1
117 #define RENAME(a) a ## _sse2
118 #include "rgb2rgb_template.c"
119 
120 //AVX versions
121 #undef RENAME
122 #undef COMPILE_TEMPLATE_AVX
123 #define COMPILE_TEMPLATE_AVX 1
124 #define RENAME(a) a ## _avx
125 #include "rgb2rgb_template.c"
126 
127 //3DNOW versions
128 #undef RENAME
129 #undef COMPILE_TEMPLATE_MMXEXT
130 #undef COMPILE_TEMPLATE_SSE2
131 #undef COMPILE_TEMPLATE_AVX
132 #undef COMPILE_TEMPLATE_AMD3DNOW
133 #define COMPILE_TEMPLATE_MMXEXT 0
134 #define COMPILE_TEMPLATE_SSE2 0
135 #define COMPILE_TEMPLATE_AVX 0
136 #define COMPILE_TEMPLATE_AMD3DNOW 1
137 #define RENAME(a) a ## _3dnow
138 #include "rgb2rgb_template.c"
139 
140 /*
141  RGB15->RGB16 original by Strepto/Astral
142  ported to gcc & bugfixed : A'rpi
143  MMXEXT, 3DNOW optimization by Nick Kurshev
144  32-bit C version, and and&add trick by Michael Niedermayer
145 */
146 
147 #endif /* HAVE_INLINE_ASM */
148 
149 void ff_shuffle_bytes_2103_mmxext(const uint8_t *src, uint8_t *dst, int src_size);
150 void ff_shuffle_bytes_2103_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
151 void ff_shuffle_bytes_0321_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
152 void ff_shuffle_bytes_1230_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
153 void ff_shuffle_bytes_3012_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
154 void ff_shuffle_bytes_3210_ssse3(const uint8_t *src, uint8_t *dst, int src_size);
155 
156 #if ARCH_X86_64
157 void ff_uyvytoyuv422_sse2(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
158  const uint8_t *src, int width, int height,
159  int lumStride, int chromStride, int srcStride);
160 void ff_uyvytoyuv422_avx(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
161  const uint8_t *src, int width, int height,
162  int lumStride, int chromStride, int srcStride);
163 #endif
164 
165 av_cold void rgb2rgb_init_x86(void)
166 {
167  int cpu_flags = av_get_cpu_flags();
168 
169 #if HAVE_INLINE_ASM
170  if (INLINE_MMX(cpu_flags))
171  rgb2rgb_init_mmx();
172  if (INLINE_AMD3DNOW(cpu_flags))
173  rgb2rgb_init_3dnow();
174  if (INLINE_MMXEXT(cpu_flags))
175  rgb2rgb_init_mmxext();
176  if (INLINE_SSE2(cpu_flags))
177  rgb2rgb_init_sse2();
178  if (INLINE_AVX(cpu_flags))
179  rgb2rgb_init_avx();
180 #endif /* HAVE_INLINE_ASM */
181 
182  if (EXTERNAL_MMXEXT(cpu_flags)) {
183  shuffle_bytes_2103 = ff_shuffle_bytes_2103_mmxext;
184  }
185  if (EXTERNAL_SSE2(cpu_flags)) {
186 #if ARCH_X86_64
187  uyvytoyuv422 = ff_uyvytoyuv422_sse2;
188 #endif
189  }
190  if (EXTERNAL_SSSE3(cpu_flags)) {
191  shuffle_bytes_0321 = ff_shuffle_bytes_0321_ssse3;
192  shuffle_bytes_2103 = ff_shuffle_bytes_2103_ssse3;
193  shuffle_bytes_1230 = ff_shuffle_bytes_1230_ssse3;
194  shuffle_bytes_3012 = ff_shuffle_bytes_3012_ssse3;
195  shuffle_bytes_3210 = ff_shuffle_bytes_3210_ssse3;
196  }
197  if (EXTERNAL_AVX(cpu_flags)) {
198 #if ARCH_X86_64
199  uyvytoyuv422 = ff_uyvytoyuv422_avx;
200 #endif
201  }
202 }
shuffle_bytes_3012
void(* shuffle_bytes_3012)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:57
INLINE_SSE2
#define INLINE_SSE2(flags)
Definition: cpu.h:89
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
rgb2rgb_init_x86
av_cold void rgb2rgb_init_x86(void)
Definition: rgb2rgb.c:165
INLINE_AVX
#define INLINE_AVX(flags)
Definition: cpu.h:100
attributes.h
Macro definitions for various function/variable attributes.
shuffle_bytes_2103
void(* shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:55
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:88
ff_shuffle_bytes_2103_mmxext
void ff_shuffle_bytes_2103_mmxext(const uint8_t *src, uint8_t *dst, int src_size)
ff_shuffle_bytes_2103_ssse3
void ff_shuffle_bytes_2103_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
shuffle_bytes_3210
void(* shuffle_bytes_3210)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:58
DECLARE_ALIGNED
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:117
height
#define height
swscale.h
external API header
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
src
#define src
Definition: vp8dsp.c:255
INLINE_MMX
#define INLINE_MMX(flags)
Definition: cpu.h:86
ff_shuffle_bytes_1230_ssse3
void ff_shuffle_bytes_1230_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
shuffle_bytes_1230
void(* shuffle_bytes_1230)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:56
DECLARE_ASM_CONST
#define DECLARE_ASM_CONST(n, t, v)
Declare a static constant aligned variable appropriate for use in inline assembly code...
Definition: mem.h:119
INLINE_AMD3DNOW
#define INLINE_AMD3DNOW(flags)
Definition: cpu.h:84
width
#define width
swscale_internal.h
EXTERNAL_SSSE3
#define EXTERNAL_SSSE3(flags)
Definition: cpu.h:65
bswap.h
byte swapping routines
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
ff_shuffle_bytes_3210_ssse3
void ff_shuffle_bytes_3210_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
ff_shuffle_bytes_0321_ssse3
void ff_shuffle_bytes_0321_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
shuffle_bytes_0321
void(* shuffle_bytes_0321)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:54
EXTERNAL_MMXEXT
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:57
ff_shuffle_bytes_3012_ssse3
void ff_shuffle_bytes_3012_ssse3(const uint8_t *src, uint8_t *dst, int src_size)
INLINE_MMXEXT
#define INLINE_MMXEXT(flags)
Definition: cpu.h:87
EXTERNAL_AVX
#define EXTERNAL_AVX(flags)
Definition: cpu.h:70
mem_internal.h
Generated on Tue Jan 26 2021 19:22:31 for FFmpeg by   doxygen 1.8.11