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#pragma once
#include <cstdint>
#include <cstring>
#include <string>
template <typename T>
struct Pixel
{
T r, g, b, a;
};
struct ImageData
{
//unsigned long imageDataSize = 0;
};
class Image
{
protected:
uint8_t* imageData;
uint8_t colorValues;
uint8_t bpp;
public:
Image() = default;
~Image();
template<std::derived_from<Image> T>
Image(const T& other);
virtual int readFromFile(std::string filename) = 0;
virtual int writeToFile(std::string filename) = 0;
template <typename T>
Pixel<T> getPixel(unsigned int x, unsigned int y);
uint32_t width = 0;
uint32_t height = 0;
uint8_t bitDepth;
uint8_t colorType;
uint8_t compressionMethod;
uint8_t filterMethod;
uint8_t interlaceMethod;
};
template<std::derived_from<Image> T> Image::Image(const T& other)
{
this->colorValues = other.colorValues;
this->bpp = other.bpp;
this->width = other.width;
this->height = other.height;
this->bitDepth = other.bitDepth;
this->colorType = other.colorType;
this->compressionMethod = other.compressionMethod;
this->filterMethod = other.filterMethod;
this->interlaceMethod = other.interlaceMethod;
unsigned long imageDataSize = width * height * bpp;
imageData = new uint8_t[imageDataSize];
mempcpy(imageData, other.imageData, imageDataSize);
}
template <typename T>
Pixel<T> Image::getPixel(unsigned int x, unsigned int y)
{
Pixel<T> pixel;
pixel.r = (T)imageData[y * width * colorValues * bitDepth/8 + x * colorValues * bitDepth/8];
pixel.g = (T)imageData[y * width * colorValues * bitDepth/8 + x * colorValues * bitDepth/8 + 1];
pixel.b = (T)imageData[y * width * colorValues * bitDepth/8 + x * colorValues * bitDepth/8 + 2];
if(colorValues == 4)
pixel.a = imageData[y * width * colorValues * bitDepth/8 + x * colorValues * bitDepth/8 + 3];
else
pixel.a = 0;
return pixel;
}
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