101 lines
4.2 KiB
C++
101 lines
4.2 KiB
C++
// Copyright (C) 2023 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
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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_UTILITY_PIXELFORMAT_HPP
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#define NAZARA_UTILITY_PIXELFORMAT_HPP
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#include <NazaraUtils/Prerequisites.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Utility/Config.hpp>
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#include <Nazara/Utility/Enums.hpp>
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#include <NazaraUtils/Bitset.hpp>
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#include <NazaraUtils/EnumArray.hpp>
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#include <array>
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#include <functional>
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///TODO: Permettre la conversion automatique entre les formats via des renseignements de bits et de type pour chaque format.
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/// Ce serait plus lent que la conversion spécialisée (qui ne disparaîtra donc pas) mais ça permettrait au moteur de faire la conversion
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/// entre n'importe quels formats non-compressés.
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namespace Nz
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{
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struct PixelFormatDescription
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{
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inline PixelFormatDescription();
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inline PixelFormatDescription(PixelFormatContent formatContent, UInt8 bpp, PixelFormatSubType subType);
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inline PixelFormatDescription(std::string_view formatName, PixelFormatContent formatContent, UInt8 bpp, PixelFormatSubType subType);
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inline PixelFormatDescription(std::string_view formatName, PixelFormatContent formatContent, Bitset<> rMask, Bitset<> gMask, Bitset<> bMask, Bitset<> aMask, PixelFormatSubType subType);
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inline PixelFormatDescription(std::string_view formatName, PixelFormatContent formatContent, PixelFormatSubType rType, Bitset<> rMask, PixelFormatSubType gType, Bitset<> gMask, PixelFormatSubType bType, Bitset<> bMask, PixelFormatSubType aType, Bitset<> aMask, UInt8 bpp = 0);
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inline void Clear();
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inline bool IsCompressed() const;
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inline bool IsValid() const;
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inline void RecomputeBitsPerPixel();
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inline bool Validate() const;
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std::string_view name;
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// Warning: Masks bit order is reversed
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Bitset<> redMask;
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Bitset<> greenMask;
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Bitset<> blueMask;
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Bitset<> alphaMask;
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PixelFormatContent content;
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PixelFormatSubType redType;
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PixelFormatSubType greenType;
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PixelFormatSubType blueType;
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PixelFormatSubType alphaType;
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UInt8 bitsPerPixel;
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};
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class NAZARA_UTILITY_API PixelFormatInfo
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{
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friend class Utility;
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public:
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using ConvertFunction = std::function<UInt8*(const UInt8* start, const UInt8* end, UInt8* dst)>;
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using FlipFunction = std::function<void(unsigned int width, unsigned int height, unsigned int depth, const UInt8* src, UInt8* dst)>;
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static inline std::size_t ComputeSize(PixelFormat format, unsigned int width, unsigned int height, unsigned int depth);
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static inline bool Convert(PixelFormat srcFormat, PixelFormat dstFormat, const void* src, void* dst);
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static inline bool Convert(PixelFormat srcFormat, PixelFormat dstFormat, const void* start, const void* end, void* dst);
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static bool Flip(PixelFlipping flipping, PixelFormat format, unsigned int width, unsigned int height, unsigned int depth, const void* src, void* dst);
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static inline UInt8 GetBitsPerPixel(PixelFormat format);
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static inline PixelFormatContent GetContent(PixelFormat format);
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static inline UInt8 GetBytesPerPixel(PixelFormat format);
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static inline const PixelFormatDescription& GetInfo(PixelFormat format);
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static inline std::string_view GetName(PixelFormat format);
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static inline bool HasAlpha(PixelFormat format);
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static PixelFormat IdentifyFormat(const PixelFormatDescription& info);
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static inline bool IsCompressed(PixelFormat format);
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static inline bool IsConversionSupported(PixelFormat srcFormat, PixelFormat dstFormat);
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static inline bool IsValid(PixelFormat format);
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static inline void SetConvertFunction(PixelFormat srcFormat, PixelFormat dstFormat, ConvertFunction func);
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static inline void SetFlipFunction(PixelFlipping flipping, PixelFormat format, FlipFunction func);
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private:
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static bool Initialize();
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static void Uninitialize();
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static EnumArray<PixelFormat, EnumArray<PixelFormat, ConvertFunction>> s_convertFunctions;
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static EnumArray<PixelFormat, EnumArray<PixelFlipping, FlipFunction>> s_flipFunctions;
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static EnumArray<PixelFormat, PixelFormatDescription> s_pixelFormatInfos;
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};
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}
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#include <Nazara/Utility/PixelFormat.inl>
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#endif // NAZARA_UTILITY_PIXELFORMAT_HPP
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