103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
#ifndef BMPPP_BMP_H
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#define BMPPP_BMP_H
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#include <Eule/Vector2.h>
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#include <vector>
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#include <cstdint>
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#include "Colormodes.h"
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namespace Leonetienne::BmpPP {
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class BmpWriter;
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class BmpReader;
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class BMP {
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public:
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//! Will create an uninitialized image
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BMP();
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//! Will create an image with the entire pixel buffer set to 0
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explicit BMP(const Eule::Vector2i& size, const Colormode& colormode = Colormode::RGBA);
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//! Will create a image and read it from a bmp file
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explicit BMP(const std::string& filename);
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//! Will return a pointer to the first byte of a pixel at a given position
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[[nodiscard]] std::uint8_t* GetPixel(const Eule::Vector2i& position);
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//! Will return a pointer to the first byte of a pixel at a given position
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[[nodiscard]] const std::uint8_t* GetPixel(const Eule::Vector2i& position) const;
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//! Will set the color of a pixel at a given position
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void SetPixel(const Eule::Vector2i& position, const std::uint8_t r, const std::uint8_t g, const std::uint8_t b, const std::uint8_t a = 0xFF);
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//! Will basically reconstruct this image, to fit a new resolution
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void ReInitialize(const Eule::Vector2i& size);
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//! Will basically reconstruct this image, to fit a new resolution and new format
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void ReInitialize(const Eule::Vector2i& size, const Colormode& colormode);
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//! Will return a pointer to the raw pixel data
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[[nodiscard]] std::uint8_t* data();
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//! Will return a pointer to the raw pixel data
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[[nodiscard]] const std::uint8_t* data() const;
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//! Will return the dimensions of the image
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[[nodiscard]] const Eule::Vector2i& GetDimensions() const;
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//! Will return the color mode of the image
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[[nodiscard]] const Colormode& GetColormode() const;
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//! Will return the amount of color channels used
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[[nodiscard]] std::size_t GetNumColorChannels() const;
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//! Will return the size of the raw pixel buffer, in bytes
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[[nodiscard]] std::size_t GetPixelbufferSize() const;
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//! Will return whether this image is initialized or not
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[[nodiscard]] bool IsInitialized() const;
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//! Will write the bmp image to a file.
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//! Returns false, if unable to open the file
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bool Write(const std::string& filename) const;
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//! Will read a bmp image from a file.
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//! Returns false, if unable to open, or parse, file
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bool Read(const std::string& filename);
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//! Will mirror the image horizontally
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void MirrorHorizontally();
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//! Will mirror the image vertically
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void MirrorVertically();
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//! Will rotate the image by 90deg, clockwise
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void Rotate90degClockwise();
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//! Will rotate the image by 90deg, counterclockwise
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void Rotate90degCounterclockwise();
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//! Will rotate the image by 180deg
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void Rotate180deg();
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//! Will convert the images colormode
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void ConvertColormode(const Colormode& colormode);
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//! Will swap two channels. Useful for, for example, easy BGR to RGB conversion.
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void SwapChannels(const std::size_t& channel1, const std::size_t& channel2);
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private:
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Eule::Vector2i size;
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Colormode colormode;
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std::vector<std::uint8_t> pixelBuffer;
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bool isInitialized = false;
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friend class BmpWriter;
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friend class BmpReader;
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};
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}
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#endif //BMPPP_BMP_H
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