mirror of https://github.com/aseprite/aseprite.git
94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
// Aseprite Render Library
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// Copyright (c) 2019 Igara Studio S.A.
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// Copyright (c) 2001-2017 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 RENDER_ORDERED_DITHER_H_INCLUDED
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#define RENDER_ORDERED_DITHER_H_INCLUDED
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#pragma once
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#include "doc/color.h"
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#include "doc/image.h"
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#include "doc/palette.h"
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#include "doc/rgbmap.h"
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#include "gfx/point.h"
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#include "gfx/size.h"
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#include "render/task_delegate.h"
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namespace render {
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class Dithering;
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class DitheringMatrix;
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class DitheringAlgorithmBase {
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public:
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virtual ~DitheringAlgorithmBase() {}
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virtual int dimensions() const { return 1; }
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virtual void start(const doc::Image* srcImage, doc::Image* dstImage, const double factor) {}
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virtual void finish() {}
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virtual doc::color_t ditherRgbPixelToIndex(const DitheringMatrix& matrix,
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const doc::color_t color,
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const int x,
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const int y,
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const doc::RgbMap* rgbmap,
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const doc::Palette* palette)
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{
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return 0;
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}
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virtual doc::color_t ditherRgbToIndex2D(const int x,
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const int y,
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const doc::RgbMap* rgbmap,
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const doc::Palette* palette,
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const int direction)
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{
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return 0;
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}
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};
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class OrderedDither : public DitheringAlgorithmBase {
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public:
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OrderedDither(int transparentIndex = -1);
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doc::color_t ditherRgbPixelToIndex(const DitheringMatrix& matrix,
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const doc::color_t color,
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const int x,
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const int y,
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const doc::RgbMap* rgbmap,
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const doc::Palette* palette) override;
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private:
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int m_transparentIndex;
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};
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class OrderedDither2 : public DitheringAlgorithmBase {
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public:
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OrderedDither2(int transparentIndex = -1);
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doc::color_t ditherRgbPixelToIndex(const DitheringMatrix& matrix,
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const doc::color_t color,
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const int x,
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const int y,
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const doc::RgbMap* rgbmap,
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const doc::Palette* palette) override;
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private:
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int m_transparentIndex;
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};
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void dither_rgb_image_to_indexed(DitheringAlgorithmBase& algorithm,
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const Dithering& dithering,
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const doc::Image* srcImage,
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doc::Image* dstImage,
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const doc::RgbMap* rgbmap,
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const doc::Palette* palette,
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TaskDelegate* delegate = nullptr);
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} // namespace render
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#endif
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