77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
// Copyright (C) 2017 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Utility module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#pragma once
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#ifndef NAZARA_GUILLOTINEIMAGEATLAS_HPP
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#define NAZARA_GUILLOTINEIMAGEATLAS_HPP
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#include <Nazara/Prerequisites.hpp>
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#include <Nazara/Core/GuillotineBinPack.hpp>
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#include <Nazara/Utility/AbstractAtlas.hpp>
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#include <Nazara/Utility/AbstractImage.hpp>
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#include <Nazara/Utility/Image.hpp>
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#include <memory>
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#include <vector>
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namespace Nz
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{
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class NAZARA_UTILITY_API GuillotineImageAtlas : public AbstractAtlas
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{
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public:
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GuillotineImageAtlas();
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GuillotineImageAtlas(const GuillotineImageAtlas&) = delete;
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GuillotineImageAtlas(GuillotineImageAtlas&&) noexcept = default;
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~GuillotineImageAtlas() = default;
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void Clear() override;
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void Free(SparsePtr<const Rectui> rects, SparsePtr<unsigned int> layers, unsigned int count) override;
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GuillotineBinPack::FreeRectChoiceHeuristic GetRectChoiceHeuristic() const;
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GuillotineBinPack::GuillotineSplitHeuristic GetRectSplitHeuristic() const;
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AbstractImage* GetLayer(unsigned int layerIndex) const override;
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std::size_t GetLayerCount() const override;
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UInt32 GetStorage() const override;
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bool Insert(const Image& image, Rectui* rect, bool* flipped, unsigned int* layerIndex) override;
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void SetRectChoiceHeuristic(GuillotineBinPack::FreeRectChoiceHeuristic heuristic);
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void SetRectSplitHeuristic(GuillotineBinPack::GuillotineSplitHeuristic heuristic);
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GuillotineImageAtlas& operator=(const GuillotineImageAtlas&) = delete;
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GuillotineImageAtlas& operator=(GuillotineImageAtlas&&) noexcept = default;
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protected:
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struct Layer;
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virtual AbstractImage* ResizeImage(AbstractImage* oldImage, const Vector2ui& size) const;
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bool ResizeLayer(Layer& layer, const Vector2ui& size);
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struct QueuedGlyph
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{
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Image image;
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Rectui rect;
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bool flipped;
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};
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struct Layer
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{
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std::vector<QueuedGlyph> queuedGlyphs;
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std::unique_ptr<AbstractImage> image;
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GuillotineBinPack binPack;
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unsigned int freedRectangles = 0;
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};
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private:
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void ProcessGlyphQueue(Layer& layer) const;
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mutable std::vector<Layer> m_layers;
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GuillotineBinPack::FreeRectChoiceHeuristic m_rectChoiceHeuristic;
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GuillotineBinPack::GuillotineSplitHeuristic m_rectSplitHeuristic;
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};
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}
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#endif // NAZARA_GUILLOTINEIMAGEATLAS_HPP
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