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  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. #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
  80. #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
  81. #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
  82. #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
  83. #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
  84. #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
  85. #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
  86. #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
  87. #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
  88.  
  89. // Note: We have C, MMX, MMXEXT, 3DNOW versions, there is no 3DNOW + MMXEXT one.
  90.  
  91. #define COMPILE_TEMPLATE_MMXEXT 0
  92. #define COMPILE_TEMPLATE_AMD3DNOW 0
  93. #define COMPILE_TEMPLATE_SSE2 0
  94.  
  95. //MMX versions
  96. #undef RENAME
  97. #define RENAME(a) a ## _MMX
  98. #include "rgb2rgb_template.c"
  99.  
  100. // MMXEXT versions
  101. #undef RENAME
  102. #undef COMPILE_TEMPLATE_MMXEXT
  103. #define COMPILE_TEMPLATE_MMXEXT 1
  104. #define RENAME(a) a ## _MMXEXT
  105. #include "rgb2rgb_template.c"
  106.  
  107. //SSE2 versions
  108. #undef RENAME
  109. #undef COMPILE_TEMPLATE_SSE2
  110. #define COMPILE_TEMPLATE_SSE2 1
  111. #define RENAME(a) a ## _SSE2
  112. #include "rgb2rgb_template.c"
  113.  
  114. //3DNOW versions
  115. #undef RENAME
  116. #undef COMPILE_TEMPLATE_MMXEXT
  117. #undef COMPILE_TEMPLATE_SSE2
  118. #undef COMPILE_TEMPLATE_AMD3DNOW
  119. #define COMPILE_TEMPLATE_MMXEXT 0
  120. #define COMPILE_TEMPLATE_SSE2 0
  121. #define COMPILE_TEMPLATE_AMD3DNOW 1
  122. #define RENAME(a) a ## _3DNOW
  123. #include "rgb2rgb_template.c"
  124.  
  125. /*
  126.  RGB15->RGB16 original by Strepto/Astral
  127.  ported to gcc & bugfixed : A'rpi
  128.  MMXEXT, 3DNOW optimization by Nick Kurshev
  129.  32-bit C version, and and&add trick by Michael Niedermayer
  130. */
  131.  
  132. #endif /* HAVE_INLINE_ASM */
  133.  
  134. av_cold void rgb2rgb_init_x86(void)
  135. {
  136. #if HAVE_INLINE_ASM
  137.     int cpu_flags = av_get_cpu_flags();
  138.  
  139.     if (INLINE_MMX(cpu_flags))
  140.         rgb2rgb_init_MMX();
  141.     if (INLINE_AMD3DNOW(cpu_flags))
  142.         rgb2rgb_init_3DNOW();
  143.     if (INLINE_MMXEXT(cpu_flags))
  144.         rgb2rgb_init_MMXEXT();
  145.     if (INLINE_SSE2(cpu_flags))
  146.         rgb2rgb_init_SSE2();
  147. #endif /* HAVE_INLINE_ASM */
  148. }
  149.