52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* JPEG image viewer
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* (This is a real mess if it has to be coded in one single C file)
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*
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* File scrolling addition (C) 2005 Alexander Spyridakis
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* Copyright (C) 2004 Jörg Hohensohn aka [IDC]Dragon
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* Heavily borrowed from the IJG implementation (C) Thomas G. Lane
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* Small & fast downscaling IDCT (C) 2002 by Guido Vollbeding JPEGclub.org
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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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef _JPEG_YUV2RGB_H
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#define _JPEG_YUV2RGB_H
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enum color_modes
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{
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COLOURMODE_COLOUR = 0,
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COLOURMODE_GRAY,
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COLOUR_NUM_MODES
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};
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enum dither_modes
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{
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DITHER_NONE = 0, /* No dithering */
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DITHER_ORDERED, /* Bayer ordered */
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DITHER_DIFFUSION, /* Floyd/Steinberg error diffusion */
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DITHER_NUM_MODES
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};
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void yuv_bitmap_part(unsigned char *src[3], int csub_x, int csub_y,
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int src_x, int src_y, int stride,
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int x, int y, int width, int height,
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int colour_mode, int dither_mode);
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#endif
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