441fca176a
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19386 a1c6a512-1295-4272-9138-f99709370657
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/***************************************************************************
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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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* Copyright (C) 2008 by Akio Idehara
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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 _RESIZE_H_
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#define _RESIZE_H_
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#include "config.h"
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#include "lcd.h"
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/****************************************************************
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* resize_on_load()
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*
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* resize bitmap on load with scaling
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*
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* If HAVE_LCD_COLOR then this func use smooth scaling algorithm
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* - downscaling both way use "Area Sampling"
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* if IMG_RESIZE_BILINER or IMG_RESIZE_NEAREST is NOT set
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* - otherwise "Bilinear" or "Nearest Neighbour"
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*
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* If !(HAVE_LCD_COLOR) then use simple scaling algorithm "Nearest Neighbour"
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*
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* return -1 for error
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****************************************************************/
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/* nothing needs the on-stack buffer right now */
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#define MAX_SC_STACK_ALLOC 0
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#define HAVE_UPSCALER 1
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struct img_part {
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int len;
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struct uint8_rgb* buf;
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};
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int resize_on_load(struct bitmap *bm, bool dither,
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struct dim *src,
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struct rowset *tmp_row, bool remote,
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#ifdef HAVE_LCD_COLOR
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unsigned char *buf, unsigned int len,
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#endif
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struct img_part* (*store_part)(void *args),
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bool (*skip_lines)(void *args, unsigned int lines),
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void *args);
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#endif /* _RESIZE_H_ */
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