72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
#pragma once
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#include <cstdint>
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#include <vector>
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#include "Utils/Directory.h"
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class RGBAPixel
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{
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public:
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RGBAPixel() = default;
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void SetRGBA(uint8_t nR, uint8_t nG, uint8_t nB, uint8_t nA);
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void SetGrayscale(uint8_t grayscale, uint8_t alpha = 0);
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uint8_t r = 0;
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uint8_t g = 0;
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uint8_t b = 0;
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uint8_t a = 0;
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};
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class ImageBackend
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{
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public:
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ImageBackend() = default;
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~ImageBackend();
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void ReadPng(const char* filename);
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void ReadPng(const fs::path& filename);
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void WritePng(const char* filename);
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void WritePng(const fs::path& filename);
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void SetTextureData(const std::vector<std::vector<RGBAPixel>>& texData, uint32_t nWidth,
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uint32_t nHeight, uint8_t nColorType, uint8_t nBitDepth);
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void InitEmptyRGBImage(uint32_t nWidth, uint32_t nHeight, bool alpha);
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void InitEmptyPaletteImage(uint32_t nWidth, uint32_t nHeight);
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RGBAPixel GetPixel(size_t y, size_t x) const;
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uint8_t GetIndexedPixel(size_t y, size_t x) const;
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void SetRGBPixel(size_t y, size_t x, uint8_t nR, uint8_t nG, uint8_t nB, uint8_t nA = 0);
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void SetGrayscalePixel(size_t y, size_t x, uint8_t grayscale, uint8_t alpha = 0);
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void SetIndexedPixel(size_t y, size_t x, uint8_t index, uint8_t grayscale);
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void SetPaletteIndex(size_t index, uint8_t nR, uint8_t nG, uint8_t nB, uint8_t nA);
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void SetPalette(const ImageBackend& pal);
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uint32_t GetWidth() const;
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uint32_t GetHeight() const;
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uint8_t GetColorType() const;
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uint8_t GetBitDepth() const;
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protected:
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uint8_t** pixelMatrix = nullptr; // height * [width * bytePerPixel]
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void* colorPalette = nullptr;
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uint8_t* alphaPalette = nullptr;
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size_t paletteSize = 16 * 16;
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uint32_t width = 0;
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uint32_t height = 0;
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uint8_t colorType = 0;
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uint8_t bitDepth = 0;
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bool hasImageData = false;
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bool isColorIndexed = false;
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double GetBytesPerPixel() const;
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void FreeImageData();
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};
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