ffmpeg/libswscale/x86/rgb2rgb.c

   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/asm.h"
  31 #include "libavutil/x86/cpu.h"
  32 #include "libavutil/cpu.h"
  33 #include "libavutil/bswap.h"
  34 #include "libswscale/rgb2rgb.h"
  35 #include "libswscale/swscale.h"
  36 #include "libswscale/swscale_internal.h"
  37
  38 #if HAVE_INLINE_ASM
  39
  40 DECLARE_ASM_CONST(8, uint64_t, mmx_ff)       = 0x00000000000000FFULL;
  41 DECLARE_ASM_CONST(8, uint64_t, mmx_null)     = 0x0000000000000000ULL;
  42 DECLARE_ASM_CONST(8, uint64_t, mmx_one)      = 0xFFFFFFFFFFFFFFFFULL;
  43 DECLARE_ASM_CONST(8, uint64_t, mask32b)      = 0x000000FF000000FFULL;
  44 DECLARE_ASM_CONST(8, uint64_t, mask32g)      = 0x0000FF000000FF00ULL;
  45 DECLARE_ASM_CONST(8, uint64_t, mask32r)      = 0x00FF000000FF0000ULL;
  46 DECLARE_ASM_CONST(8, uint64_t, mask32a)      = 0xFF000000FF000000ULL;
  47 DECLARE_ASM_CONST(8, uint64_t, mask32)       = 0x00FFFFFF00FFFFFFULL;
  48 DECLARE_ASM_CONST(8, uint64_t, mask3216br)   = 0x00F800F800F800F8ULL;
  49 DECLARE_ASM_CONST(8, uint64_t, mask3216g)    = 0x0000FC000000FC00ULL;
  50 DECLARE_ASM_CONST(8, uint64_t, mask3215g)    = 0x0000F8000000F800ULL;
  51 DECLARE_ASM_CONST(8, uint64_t, mul3216)      = 0x2000000420000004ULL;
  52 DECLARE_ASM_CONST(8, uint64_t, mul3215)      = 0x2000000820000008ULL;
  53 DECLARE_ASM_CONST(8, uint64_t, mask24b)      = 0x00FF0000FF0000FFULL;
  54 DECLARE_ASM_CONST(8, uint64_t, mask24g)      = 0xFF0000FF0000FF00ULL;
  55 DECLARE_ASM_CONST(8, uint64_t, mask24r)      = 0x0000FF0000FF0000ULL;
  56 DECLARE_ASM_CONST(8, uint64_t, mask24l)      = 0x0000000000FFFFFFULL;
  57 DECLARE_ASM_CONST(8, uint64_t, mask24h)      = 0x0000FFFFFF000000ULL;
  58 DECLARE_ASM_CONST(8, uint64_t, mask24hh)     = 0xffff000000000000ULL;
  59 DECLARE_ASM_CONST(8, uint64_t, mask24hhh)    = 0xffffffff00000000ULL;
  60 DECLARE_ASM_CONST(8, uint64_t, mask24hhhh)   = 0xffffffffffff0000ULL;
  61 DECLARE_ASM_CONST(8, uint64_t, mask15b)      = 0x001F001F001F001FULL; /* 00000000 00011111  xxB */
  62 DECLARE_ASM_CONST(8, uint64_t, mask15rg)     = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000  RGx */
  63 DECLARE_ASM_CONST(8, uint64_t, mask15s)      = 0xFFE0FFE0FFE0FFE0ULL;
  64 DECLARE_ASM_CONST(8, uint64_t, mask15g)      = 0x03E003E003E003E0ULL;
  65 DECLARE_ASM_CONST(8, uint64_t, mask15r)      = 0x7C007C007C007C00ULL;
  66 #define mask16b mask15b
  67 DECLARE_ASM_CONST(8, uint64_t, mask16g)      = 0x07E007E007E007E0ULL;
  68 DECLARE_ASM_CONST(8, uint64_t, mask16r)      = 0xF800F800F800F800ULL;
  69 DECLARE_ASM_CONST(8, uint64_t, red_16mask)   = 0x0000f8000000f800ULL;
  70 DECLARE_ASM_CONST(8, uint64_t, green_16mask) = 0x000007e0000007e0ULL;
  71 DECLARE_ASM_CONST(8, uint64_t, blue_16mask)  = 0x0000001f0000001fULL;
  72 DECLARE_ASM_CONST(8, uint64_t, red_15mask)   = 0x00007c0000007c00ULL;
  73 DECLARE_ASM_CONST(8, uint64_t, green_15mask) = 0x000003e0000003e0ULL;
  74 DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
  75 DECLARE_ASM_CONST(8, uint64_t, mul15_mid)    = 0x4200420042004200ULL;
  76 DECLARE_ASM_CONST(8, uint64_t, mul15_hi)     = 0x0210021002100210ULL;
  77 DECLARE_ASM_CONST(8, uint64_t, mul16_mid)    = 0x2080208020802080ULL;
  78
  79 DECLARE_ALIGNED(8, extern const uint64_t, ff_bgr2YOffset);
  80 DECLARE_ALIGNED(8, extern const uint64_t, ff_w1111);
  81 DECLARE_ALIGNED(8, extern const uint64_t, ff_bgr2UVOffset);
  82
  83 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
  84 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
  85 #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
  86 #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
  87 #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
  88 #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
  89 #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
  90 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
  91 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
  92
  93 // Note: We have C, MMX, MMXEXT, 3DNOW versions, there is no 3DNOW + MMXEXT one.
  94
  95 #define COMPILE_TEMPLATE_MMXEXT 0
  96 #define COMPILE_TEMPLATE_AMD3DNOW 0
  97 #define COMPILE_TEMPLATE_SSE2 0
  98 #define COMPILE_TEMPLATE_AVX 0
  99
 100 //MMX versions
 101 #undef RENAME
 102 #define RENAME(a) a ## _mmx
 103 #include "rgb2rgb_template.c"
 104
 105 // MMXEXT versions
 106 #undef RENAME
 107 #undef COMPILE_TEMPLATE_MMXEXT
 108 #define COMPILE_TEMPLATE_MMXEXT 1
 109 #define RENAME(a) a ## _mmxext
 110 #include "rgb2rgb_template.c"
 111
 112 //SSE2 versions
 113 #undef RENAME
 114 #undef COMPILE_TEMPLATE_SSE2
 115 #define COMPILE_TEMPLATE_SSE2 1
 116 #define RENAME(a) a ## _sse2
 117 #include "rgb2rgb_template.c"
 118
 119 //AVX versions
 120 #undef RENAME
 121 #undef COMPILE_TEMPLATE_AVX
 122 #define COMPILE_TEMPLATE_AVX 1
 123 #define RENAME(a) a ## _avx
 124 #include "rgb2rgb_template.c"
 125
 126 //3DNOW versions
 127 #undef RENAME
 128 #undef COMPILE_TEMPLATE_MMXEXT
 129 #undef COMPILE_TEMPLATE_SSE2
 130 #undef COMPILE_TEMPLATE_AVX
 131 #undef COMPILE_TEMPLATE_AMD3DNOW
 132 #define COMPILE_TEMPLATE_MMXEXT 0
 133 #define COMPILE_TEMPLATE_SSE2 0
 134 #define COMPILE_TEMPLATE_AVX 0
 135 #define COMPILE_TEMPLATE_AMD3DNOW 1
 136 #define RENAME(a) a ## _3dnow
 137 #include "rgb2rgb_template.c"
 138
 139 /*
 140  RGB15->RGB16 original by Strepto/Astral
 141  ported to gcc & bugfixed : A'rpi
 142  MMXEXT, 3DNOW optimization by Nick Kurshev
 143  32-bit C version, and and&add trick by Michael Niedermayer
 144 */
 145
 146 #endif /* HAVE_INLINE_ASM */
 147
 148 av_cold void rgb2rgb_init_x86(void)
 149 {
 150 #if HAVE_INLINE_ASM
 151     int cpu_flags = av_get_cpu_flags();
 152
 153     if (INLINE_MMX(cpu_flags))
 154         rgb2rgb_init_mmx();
 155     if (INLINE_AMD3DNOW(cpu_flags))
 156         rgb2rgb_init_3dnow();
 157     if (INLINE_MMXEXT(cpu_flags))
 158         rgb2rgb_init_mmxext();
 159     if (INLINE_SSE2(cpu_flags))
 160         rgb2rgb_init_sse2();
 161     if (INLINE_AVX(cpu_flags))
 162         rgb2rgb_init_avx();
 163 #endif /* HAVE_INLINE_ASM */
 164 }