112 lines
No EOL
2.5 KiB
C++
112 lines
No EOL
2.5 KiB
C++
#pragma once
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#include <cstdint>
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#include <string>
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#include <fstream>
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const char PADDING_ZEROES[3] = {0, 0, 0};
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#pragma pack(push, 1)
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struct BitmapFileHeader {
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char signature[2] = {'B', 'M'};
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uint32_t fileSize = 0;
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uint16_t reserved1 = 0;
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uint16_t reserved2 = 0;
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uint32_t imageDataOffset = 54;
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};
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#pragma pack(pop)
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#pragma pack(push, 1)
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struct BITMAPINFOHEADER {
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uint32_t HeaderSize = 40;
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uint32_t BitmapWidth = 0;
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uint32_t BitmapHeight = 0;
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uint16_t ColorPlanes = 1;
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uint16_t BitsPerPixel = 24;
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uint32_t CompressionMethod = 0;
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uint32_t ImageSize = 0;
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int32_t HorizontalPixelPerMetre = 0;
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int32_t VerticalPixelPerMetre = 0;
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uint32_t NumberOfColors = 0;
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uint32_t NumberOfImportantColors = 0;
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};
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#pragma pack(pop)
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#pragma pack(push, 1)
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struct Pixel {
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uint8_t r = 255;
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uint8_t g = 0;
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uint8_t b = 255;
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};
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#pragma pack(pop)
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class PixelArray{
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Pixel **array;
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uint32_t _width;
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uint32_t _height;
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public:
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PixelArray(uint32_t width, uint32_t height);
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PixelArray(const PixelArray &);
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~PixelArray();
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[[nodiscard]] const uint32_t &width() const;
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[[nodiscard]] const uint32_t &height() const;
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// Pixel operator()(const uint32_t &, const uint32_t &);
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// Pixel* operator()(const uint32_t &);
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Pixel &operator()(const uint32_t &, const uint32_t &);
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Pixel* &operator()(const uint32_t &);
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};
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class BMPImage {
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BitmapFileHeader fileHeader;
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BITMAPINFOHEADER infoHeader;
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PixelArray pixelArray;
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public:
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BMPImage(const BitmapFileHeader &fileHeader, const BITMAPINFOHEADER &infoHeader, const PixelArray& pixelArray);
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BMPImage(const PixelArray& pixelArray);
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~BMPImage();
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[[nodiscard]] const uint32_t &width() const;
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[[nodiscard]] const uint32_t &height() const;
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[[nodiscard]] PixelArray pixels();
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[[nodiscard]] PixelArray pixels_copy();
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[[nodiscard]] BitmapFileHeader fileHeader_copy();
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[[nodiscard]] BITMAPINFOHEADER infoHeader_copy();
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void save(const std::string &);
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BMPImage appendRight(BMPImage &);
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};
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BMPImage readBMPImage(const std::string &filename);
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Pixel operator/(const Pixel &, const uint8_t &);
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Pixel operator+(const Pixel &, const Pixel &);
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Pixel operator*(const Pixel &, const int &);
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Pixel operator-(const Pixel &, const uint8_t &);
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Pixel operator-(const uint8_t &, const Pixel &);
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BMPImage grayscale(BMPImage &);
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BMPImage invertColors(BMPImage &);
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BMPImage upscale2x(BMPImage &);
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BMPImage downscale2x(BMPImage &);
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BMPImage upscale1_5x(BMPImage &);
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uint8_t ui8_clamp(int value, uint8_t min = 0, uint8_t max = 255); |