mirror of https://github.com/aseprite/aseprite.git
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
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/* ASEPRITE
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* Copyright (C) 2001-2012 David Capello
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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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "raster/algorithm/flip_image.h"
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#include "base/unique_ptr.h"
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#include "gfx/rect.h"
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#include "raster/image.h"
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namespace raster { namespace algorithm {
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void flip_image(Image* image, const gfx::Rect& bounds, FlipType flipType)
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{
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UniquePtr<Image> area(image_crop(image, bounds.x, bounds.y, bounds.w, bounds.h, 0));
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int x2 = bounds.x+bounds.w-1;
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int y2 = bounds.y+bounds.h-1;
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int x, y;
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for (y=0; y<bounds.h; ++y)
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for (x=0; x<bounds.w; ++x)
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image_putpixel(image,
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(flipType == FlipHorizontal ? x2-x: bounds.x+x),
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(flipType == FlipVertical ? y2-y: bounds.y+y),
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image_getpixel(area, x, y));
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}
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} }
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