mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-13 21:31:53 +00:00
19d613ee7d
Note that larryScale_generated.cpp still contains UTF-8 characters, but they are all in comments, so hopefully they will not cause problems.
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef GRAPHICS_LARRYSCALE_H
|
|
#define GRAPHICS_LARRYSCALE_H
|
|
|
|
#include "common/scummsys.h"
|
|
|
|
namespace Graphics {
|
|
|
|
/*
|
|
|
|
LarryScale is a bitmap scaler for cartoon images.
|
|
|
|
Features:
|
|
|
|
* Supports arbitrary scaling factors along both axes (but looks best between 50% and 200%).
|
|
* When downscaling: preserves fine details.
|
|
* When upscaling: keeps lines smooth, introducing very few block artifacts.
|
|
* Does not introduce additional colors.
|
|
|
|
Limitations:
|
|
|
|
* Lines must not be anti-aliased and should be only one pixel wide.
|
|
* Fills should be flat without gradients.
|
|
|
|
*/
|
|
|
|
typedef byte LarryScaleColor;
|
|
|
|
class RowReader {
|
|
public:
|
|
virtual const LarryScaleColor *readRow(int y) = 0;
|
|
virtual ~RowReader() {}
|
|
};
|
|
|
|
class RowWriter {
|
|
public:
|
|
virtual void writeRow(int y, const LarryScaleColor *row) = 0;
|
|
virtual ~RowWriter() {}
|
|
};
|
|
|
|
/**
|
|
* @param srcWidth The width, in pixels, of the original image
|
|
* @param srcHeight The height, in pixels, of the original image
|
|
* @param transparentColor The transparent color. Used for outline detection.
|
|
* @param rowReader An object with a callback method for reading the lines of the original
|
|
* image
|
|
* @param dstWidth The width, in pixels, of the scaled target image
|
|
* @param dstHeight The height, in pixels, of the scaled target image
|
|
* @param rowWriter An object with a callback method accepting the lines of the target image
|
|
*/
|
|
void larryScale(
|
|
int srcWidth, int srcHeight,
|
|
LarryScaleColor transparentColor,
|
|
RowReader &rowReader,
|
|
int dstWidth, int dstHeight,
|
|
RowWriter &rowWriter
|
|
);
|
|
|
|
}
|
|
|
|
#endif
|
|
|