rgb2rgb.c 5.8 KB

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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. #include <stdint.h>
  26. #include "config.h"
  27. #include "libavutil/attributes.h"
  28. #include "libavutil/x86/asm.h"
  29. #include "libavutil/x86/cpu.h"
  30. #include "libavutil/cpu.h"
  31. #include "libavutil/bswap.h"
  32. #include "libswscale/rgb2rgb.h"
  33. #include "libswscale/swscale.h"
  34. #include "libswscale/swscale_internal.h"
  35. #if HAVE_INLINE_ASM
  36. DECLARE_ASM_CONST(8, uint64_t, mmx_ff) = 0x00000000000000FFULL;
  37. DECLARE_ASM_CONST(8, uint64_t, mmx_null) = 0x0000000000000000ULL;
  38. DECLARE_ASM_CONST(8, uint64_t, mmx_one) = 0xFFFFFFFFFFFFFFFFULL;
  39. DECLARE_ASM_CONST(8, uint64_t, mask32b) = 0x000000FF000000FFULL;
  40. DECLARE_ASM_CONST(8, uint64_t, mask32g) = 0x0000FF000000FF00ULL;
  41. DECLARE_ASM_CONST(8, uint64_t, mask32r) = 0x00FF000000FF0000ULL;
  42. DECLARE_ASM_CONST(8, uint64_t, mask32a) = 0xFF000000FF000000ULL;
  43. DECLARE_ASM_CONST(8, uint64_t, mask32) = 0x00FFFFFF00FFFFFFULL;
  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, mask24hh) = 0xffff000000000000ULL;
  55. DECLARE_ASM_CONST(8, uint64_t, mask24hhh) = 0xffffffff00000000ULL;
  56. DECLARE_ASM_CONST(8, uint64_t, mask24hhhh) = 0xffffffffffff0000ULL;
  57. DECLARE_ASM_CONST(8, uint64_t, mask15b) = 0x001F001F001F001FULL; /* 00000000 00011111 xxB */
  58. DECLARE_ASM_CONST(8, uint64_t, mask15rg) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000 RGx */
  59. DECLARE_ASM_CONST(8, uint64_t, mask15s) = 0xFFE0FFE0FFE0FFE0ULL;
  60. DECLARE_ASM_CONST(8, uint64_t, mask15g) = 0x03E003E003E003E0ULL;
  61. DECLARE_ASM_CONST(8, uint64_t, mask15r) = 0x7C007C007C007C00ULL;
  62. #define mask16b mask15b
  63. DECLARE_ASM_CONST(8, uint64_t, mask16g) = 0x07E007E007E007E0ULL;
  64. DECLARE_ASM_CONST(8, uint64_t, mask16r) = 0xF800F800F800F800ULL;
  65. DECLARE_ASM_CONST(8, uint64_t, red_16mask) = 0x0000f8000000f800ULL;
  66. DECLARE_ASM_CONST(8, uint64_t, green_16mask) = 0x000007e0000007e0ULL;
  67. DECLARE_ASM_CONST(8, uint64_t, blue_16mask) = 0x0000001f0000001fULL;
  68. DECLARE_ASM_CONST(8, uint64_t, red_15mask) = 0x00007c0000007c00ULL;
  69. DECLARE_ASM_CONST(8, uint64_t, green_15mask) = 0x000003e0000003e0ULL;
  70. DECLARE_ASM_CONST(8, uint64_t, blue_15mask) = 0x0000001f0000001fULL;
  71. DECLARE_ASM_CONST(8, uint64_t, mul15_mid) = 0x4200420042004200ULL;
  72. DECLARE_ASM_CONST(8, uint64_t, mul15_hi) = 0x0210021002100210ULL;
  73. DECLARE_ASM_CONST(8, uint64_t, mul16_mid) = 0x2080208020802080ULL;
  74. #define RGB2YUV_SHIFT 8
  75. #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
  76. #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
  77. #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
  78. #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
  79. #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
  80. #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
  81. #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
  82. #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
  83. #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
  84. //Note: We have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW + MMX2 one.
  85. #define COMPILE_TEMPLATE_MMXEXT 0
  86. #define COMPILE_TEMPLATE_AMD3DNOW 0
  87. #define COMPILE_TEMPLATE_SSE2 0
  88. //MMX versions
  89. #undef RENAME
  90. #define RENAME(a) a ## _MMX
  91. #include "rgb2rgb_template.c"
  92. //MMX2 versions
  93. #undef RENAME
  94. #undef COMPILE_TEMPLATE_MMXEXT
  95. #define COMPILE_TEMPLATE_MMXEXT 1
  96. #define RENAME(a) a ## _MMX2
  97. #include "rgb2rgb_template.c"
  98. //SSE2 versions
  99. #undef RENAME
  100. #undef COMPILE_TEMPLATE_SSE2
  101. #define COMPILE_TEMPLATE_SSE2 1
  102. #define RENAME(a) a ## _SSE2
  103. #include "rgb2rgb_template.c"
  104. //3DNOW versions
  105. #undef RENAME
  106. #undef COMPILE_TEMPLATE_MMXEXT
  107. #undef COMPILE_TEMPLATE_SSE2
  108. #undef COMPILE_TEMPLATE_AMD3DNOW
  109. #define COMPILE_TEMPLATE_MMXEXT 0
  110. #define COMPILE_TEMPLATE_SSE2 0
  111. #define COMPILE_TEMPLATE_AMD3DNOW 1
  112. #define RENAME(a) a ## _3DNOW
  113. #include "rgb2rgb_template.c"
  114. /*
  115. RGB15->RGB16 original by Strepto/Astral
  116. ported to gcc & bugfixed : A'rpi
  117. MMX2, 3DNOW optimization by Nick Kurshev
  118. 32-bit C version, and and&add trick by Michael Niedermayer
  119. */
  120. #endif /* HAVE_INLINE_ASM */
  121. av_cold void rgb2rgb_init_x86(void)
  122. {
  123. #if HAVE_INLINE_ASM
  124. int cpu_flags = av_get_cpu_flags();
  125. if (INLINE_MMX(cpu_flags))
  126. rgb2rgb_init_MMX();
  127. if (INLINE_AMD3DNOW(cpu_flags))
  128. rgb2rgb_init_3DNOW();
  129. if (INLINE_MMXEXT(cpu_flags))
  130. rgb2rgb_init_MMX2();
  131. if (INLINE_SSE2(cpu_flags))
  132. rgb2rgb_init_SSE2();
  133. #endif /* HAVE_INLINE_ASM */
  134. }