mirror of https://github.com/aseprite/aseprite.git
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
// Aseprite Document Library
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// Copyright (c) 2019-2025 Igara Studio S.A.
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// Copyright (c) 2001-2018 David Capello
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//
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// This file is released under the terms of the MIT license.
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// Read LICENSE.txt for more information.
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#ifndef DOC_ALGORITHM_RESIZE_IMAGE_H_INCLUDED
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#define DOC_ALGORITHM_RESIZE_IMAGE_H_INCLUDED
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#pragma once
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#include "doc/color.h"
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#include "gfx/fwd.h"
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namespace doc {
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class Image;
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class Palette;
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class RgbMap;
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namespace algorithm {
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enum ResizeMethod {
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RESIZE_METHOD_NEAREST_NEIGHBOR,
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RESIZE_METHOD_BILINEAR,
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RESIZE_METHOD_ROTSPRITE,
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};
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// Resizes the source image "src" to the destination image "dst".
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//
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// Warning: If you are using the RESIZE_METHOD_BILINEAR, the "src"
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// image will be first filtered with the
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// fixup_image_transparent_colors() function, which modifies the
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// transparent pixels of the "src" image.
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void resize_image(Image* src,
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Image* dst,
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const ResizeMethod method,
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const Palette* palette,
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const RgbMap* rgbmap,
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const color_t maskColor);
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// It does not modify the image to the human eye, but internally
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// tries to fixup all colors that are completely transparent
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// (alpha = 0) with the average of its 4-neighbors. Useful if you
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// want to use resize_image() with images that contains
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// transparent pixels.
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void fixup_image_transparent_colors(Image* image);
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} // namespace algorithm
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} // namespace doc
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#endif
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