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Diffstat (limited to 'gfx/ycbcr/yuv_convert.h')
| -rw-r--r-- | gfx/ycbcr/yuv_convert.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/gfx/ycbcr/yuv_convert.h b/gfx/ycbcr/yuv_convert.h new file mode 100644 index 000000000..266a23d45 --- /dev/null +++ b/gfx/ycbcr/yuv_convert.h @@ -0,0 +1,110 @@ +// Copyright (c) 2010 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef MEDIA_BASE_YUV_CONVERT_H_ +#define MEDIA_BASE_YUV_CONVERT_H_ + +#include "chromium_types.h" +#include "ImageTypes.h" + +namespace mozilla { + +namespace gfx { + +// Type of YUV surface. +// The value of these enums matter as they are used to shift vertical indices. +enum YUVType { + YV12 = 0, // YV12 is half width and half height chroma channels. + YV16 = 1, // YV16 is half width and full height chroma channels. + YV24 = 2 // YV24 is full width and full height chroma channels. +}; + +// Mirror means flip the image horizontally, as in looking in a mirror. +// Rotate happens after mirroring. +enum Rotate { + ROTATE_0, // Rotation off. + ROTATE_90, // Rotate clockwise. + ROTATE_180, // Rotate upside down. + ROTATE_270, // Rotate counter clockwise. + MIRROR_ROTATE_0, // Mirror horizontally. + MIRROR_ROTATE_90, // Mirror then Rotate clockwise. + MIRROR_ROTATE_180, // Mirror vertically. + MIRROR_ROTATE_270 // Transpose. +}; + +// Filter affects how scaling looks. +enum ScaleFilter { + FILTER_NONE = 0, // No filter (point sampled). + FILTER_BILINEAR_H = 1, // Bilinear horizontal filter. + FILTER_BILINEAR_V = 2, // Bilinear vertical filter. + FILTER_BILINEAR = 3 // Bilinear filter. +}; + +YUVType TypeFromSize(int ywidth, int yheight, int cbcrwidth, int cbcrheight); + +// Convert a frame of YUV to 32 bit ARGB. +// Pass in YV16/YV12 depending on source format +void ConvertYCbCrToRGB32(const uint8* yplane, + const uint8* uplane, + const uint8* vplane, + uint8* rgbframe, + int pic_x, + int pic_y, + int pic_width, + int pic_height, + int ystride, + int uvstride, + int rgbstride, + YUVType yuv_type, + YUVColorSpace yuv_color_space); + +void ConvertYCbCrToRGB32_deprecated(const uint8* yplane, + const uint8* uplane, + const uint8* vplane, + uint8* rgbframe, + int pic_x, + int pic_y, + int pic_width, + int pic_height, + int ystride, + int uvstride, + int rgbstride, + YUVType yuv_type); + +// Scale a frame of YUV to 32 bit ARGB. +// Supports rotation and mirroring. +void ScaleYCbCrToRGB32(const uint8* yplane, + const uint8* uplane, + const uint8* vplane, + uint8* rgbframe, + int source_width, + int source_height, + int width, + int height, + int ystride, + int uvstride, + int rgbstride, + YUVType yuv_type, + YUVColorSpace yuv_color_space, + ScaleFilter filter); + +void ScaleYCbCrToRGB32_deprecated(const uint8* yplane, + const uint8* uplane, + const uint8* vplane, + uint8* rgbframe, + int source_width, + int source_height, + int width, + int height, + int ystride, + int uvstride, + int rgbstride, + YUVType yuv_type, + Rotate view_rotate, + ScaleFilter filter); + +} // namespace gfx +} // namespace mozilla + +#endif // MEDIA_BASE_YUV_CONVERT_H_ |