Shipwright/ZAPDTR/ZAPD/ImageBackend.h

72 lines
1.8 KiB
C
Raw Normal View History

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