scummvm/graphics/scaler/downscaler.h
2011-05-12 01:16:22 +02:00

48 lines
1.6 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_SCALER_DOWNSCALER_H
#define GRAPHICS_SCALER_DOWNSCALER_H
#include "common/scummsys.h"
#include "graphics/scaler.h"
/**
* This filter (down)scales the source image by a factor of 1/2.
* For example, a 320x200 image is scaled to 160x100.
*/
DECLARE_SCALER(DownscaleAllByHalf);
/**
* This filter (down)scales the source image horizontally by a factor of 1/2.
* For example, a 320x200 image is scaled to 160x200.
*/
DECLARE_SCALER(DownscaleHorizByHalf);
/**
* This filter (down)scales the source image horizontally by a factor of 3/4.
* For example, a 320x200 image is scaled to 240x200.
*/
DECLARE_SCALER(DownscaleHorizByThreeQuarters);
#endif