1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef MEDIA_BASE_YUV_CONVERT_H_ 6 #define MEDIA_BASE_YUV_CONVERT_H_ 7 8 #include "base/basictypes.h" 9 #include "media/base/media_export.h" 10 #include "media/base/simd/yuv_to_rgb_table.h" 11 12 // Visual Studio 2010 does not support MMX intrinsics on x64. 13 // Some win64 yuv_convert code paths use SSE+MMX yasm, so without rewriting 14 // them, we use yasm EmptyRegisterState_MMX in place of _mm_empty() or 15 // hide the versions implemented with heavy use of MMX intrinsics. 16 // TODO(wolenetz): Use MMX intrinsics when compiling win64 with Visual 17 // Studio 2012? http://crbug.com/173450 18 #if defined(ARCH_CPU_X86_FAMILY) && \ 19 !(defined(ARCH_CPU_X86_64) && defined(COMPILER_MSVC)) 20 #define MEDIA_MMX_INTRINSICS_AVAILABLE 21 #endif 22 23 namespace media { 24 25 // Type of YUV surface. 26 enum YUVType { 27 YV16 = 0, // YV16 is half width and full height chroma channels. 28 YV12 = 1, // YV12 is half width and half height chroma channels. 29 YV12J = 2, // YV12J is the same as YV12, but in JPEG color range. 30 }; 31 32 // Get the appropriate value to bitshift by for vertical indices. 33 MEDIA_EXPORT int GetVerticalShift(YUVType type); 34 35 // Get the appropriate lookup table for a given YUV format. 36 MEDIA_EXPORT const int16 (&GetLookupTable(YUVType type))[1024][4]; 37 38 // Mirror means flip the image horizontally, as in looking in a mirror. 39 // Rotate happens after mirroring. 40 enum Rotate { 41 ROTATE_0, // Rotation off. 42 ROTATE_90, // Rotate clockwise. 43 ROTATE_180, // Rotate upside down. 44 ROTATE_270, // Rotate counter clockwise. 45 MIRROR_ROTATE_0, // Mirror horizontally. 46 MIRROR_ROTATE_90, // Mirror then Rotate clockwise. 47 MIRROR_ROTATE_180, // Mirror vertically. 48 MIRROR_ROTATE_270, // Transpose. 49 }; 50 51 // Filter affects how scaling looks. 52 enum ScaleFilter { 53 FILTER_NONE = 0, // No filter (point sampled). 54 FILTER_BILINEAR_H = 1, // Bilinear horizontal filter. 55 FILTER_BILINEAR_V = 2, // Bilinear vertical filter. 56 FILTER_BILINEAR = 3, // Bilinear filter. 57 }; 58 59 MEDIA_EXPORT void InitializeCPUSpecificYUVConversions(); 60 61 // Convert a frame of YUV to 32 bit ARGB. 62 // Pass in YV16/YV12 depending on source format 63 MEDIA_EXPORT void ConvertYUVToRGB32(const uint8* yplane, 64 const uint8* uplane, 65 const uint8* vplane, 66 uint8* rgbframe, 67 int width, 68 int height, 69 int ystride, 70 int uvstride, 71 int rgbstride, 72 YUVType yuv_type); 73 74 // Convert a frame of YUVA to 32 bit ARGB. 75 // Pass in YV12A 76 MEDIA_EXPORT void ConvertYUVAToARGB(const uint8* yplane, 77 const uint8* uplane, 78 const uint8* vplane, 79 const uint8* aplane, 80 uint8* rgbframe, 81 int width, 82 int height, 83 int ystride, 84 int uvstride, 85 int astride, 86 int rgbstride, 87 YUVType yuv_type); 88 89 // Scale a frame of YUV to 32 bit ARGB. 90 // Supports rotation and mirroring. 91 MEDIA_EXPORT void ScaleYUVToRGB32(const uint8* yplane, 92 const uint8* uplane, 93 const uint8* vplane, 94 uint8* rgbframe, 95 int source_width, 96 int source_height, 97 int width, 98 int height, 99 int ystride, 100 int uvstride, 101 int rgbstride, 102 YUVType yuv_type, 103 Rotate view_rotate, 104 ScaleFilter filter); 105 106 // Biliner Scale a frame of YV12 to 32 bits ARGB on a specified rectangle. 107 // |yplane|, etc and |rgbframe| should point to the top-left pixels of the 108 // source and destination buffers. 109 MEDIA_EXPORT void ScaleYUVToRGB32WithRect(const uint8* yplane, 110 const uint8* uplane, 111 const uint8* vplane, 112 uint8* rgbframe, 113 int source_width, 114 int source_height, 115 int dest_width, 116 int dest_height, 117 int dest_rect_left, 118 int dest_rect_top, 119 int dest_rect_right, 120 int dest_rect_bottom, 121 int ystride, 122 int uvstride, 123 int rgbstride); 124 125 MEDIA_EXPORT void ConvertRGB32ToYUV(const uint8* rgbframe, 126 uint8* yplane, 127 uint8* uplane, 128 uint8* vplane, 129 int width, 130 int height, 131 int rgbstride, 132 int ystride, 133 int uvstride); 134 135 MEDIA_EXPORT void ConvertRGB24ToYUV(const uint8* rgbframe, 136 uint8* yplane, 137 uint8* uplane, 138 uint8* vplane, 139 int width, 140 int height, 141 int rgbstride, 142 int ystride, 143 int uvstride); 144 145 MEDIA_EXPORT void ConvertYUY2ToYUV(const uint8* src, 146 uint8* yplane, 147 uint8* uplane, 148 uint8* vplane, 149 int width, 150 int height); 151 152 MEDIA_EXPORT void ConvertNV21ToYUV(const uint8* src, 153 uint8* yplane, 154 uint8* uplane, 155 uint8* vplane, 156 int width, 157 int height); 158 159 // Empty SIMD register state after calling optimized scaler functions. 160 MEDIA_EXPORT void EmptyRegisterState(); 161 162 } // namespace media 163 164 #endif // MEDIA_BASE_YUV_CONVERT_H_ 165
