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