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41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef GRAPHICS_SCALER_DOWNSCALER_H
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#define GRAPHICS_SCALER_DOWNSCALER_H
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#include "common/scummsys.h"
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#include "graphics/surface.h"
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namespace Graphics {
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/**
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* This filter (down)scales the source image by a factor of 1/2.
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* For example, a 320x200 image is scaled to 160x100.
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*/
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extern void downscaleAllByHalf(const uint8 *srcPtr, uint32 srcPitch, uint8 *dstPtr,
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uint32 dstPitch, int width, int height, int gBits = 565);
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void downscaleSurfaceByHalf(Surface *out, const Surface *in, const byte *palette);
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}
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#endif
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