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82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
/* Residual - A 3D game interpreter
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*
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* Residual is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the AUTHORS
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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/**
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* @file
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* YUV to RGB conversion used in engines:
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* - mohawk
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* - scumm (he)
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* - sword25
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*/
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#ifndef GRAPHICS_YUVA_TO_RGBA_H
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#define GRAPHICS_YUVA_TO_RGBA_H
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#include "common/scummsys.h"
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#include "common/singleton.h"
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#include "graphics/surface.h"
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namespace Graphics {
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class YUVAToRGBALookup;
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class YUVAToRGBAManager : public Common::Singleton<YUVAToRGBAManager> {
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public:
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/** The scale of the luminance values */
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enum LuminanceScale {
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kScaleFull, /** Luminance values range from [0, 255] */
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kScaleITU /** Luminance values range from [16, 235], the range from ITU-R BT.601 */
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};
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/**
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* Convert a YUV420 image to an RGB surface
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*
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* @param dst the destination surface
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* @param scale the scale of the luminance values
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* @param ySrc the source of the y component
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* @param uSrc the source of the u component
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* @param vSrc the source of the v component
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* @param aSrc the source of the a component
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* @param yWidth the width of the y surface (must be divisible by 2)
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* @param yHeight the height of the y surface (must be divisible by 2)
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* @param yPitch the pitch of the y surface
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* @param uvPitch the pitch of the u and v surfaces
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*/
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void convert420(Graphics::Surface *dst, LuminanceScale scale, const byte *ySrc, const byte *uSrc, const byte *vSrc, const byte *aSrc, int yWidth, int yHeight, int yPitch, int uvPitch);
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private:
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friend class Common::Singleton<SingletonBaseType>;
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YUVAToRGBAManager();
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~YUVAToRGBAManager();
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const YUVAToRGBALookup *getLookup(Graphics::PixelFormat format, LuminanceScale scale);
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YUVAToRGBALookup *_lookup;
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int16 _colorTab[4 * 256]; // 2048 bytes
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};
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} // End of namespace Graphics
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#define YUVAToRGBAMan (::Graphics::YUVAToRGBAManager::instance())
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#endif
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