bmp.h

#ifndef __STRUCT_H__
#define __STRUCT_H__

#include <stdint.h>

// Structure Definitions

#pragma pack(push, 1)

struct BITMAPFLEHEADER {  // For older versions 54 bytes
    uint16_t signature;   // Magic identifier: 0x4d42
    uint32_t filesize;    // File size in bytes
    uint16_t reserved1;   // Not used
    uint16_t reserved2;   // Not used
    uint32_t offset;      // Offset to pixel array
};

#pragma pack(pop)

#pragma pack(push, 1)

struct DIBHEADER {            // Bitmap V5 header could be substituted
    uint32_t DIBHeaderSize;   // DIB or BMP V5 Header size
    int32_t imgWidth;         // Width of the image
    int32_t imgHeight;        // Height of image
    uint16_t numPlanes;       // Number of color planes
    uint16_t bitsPerPixel;    // Bits per pixel
    uint32_t compression;     // Compression type
    uint32_t imageSizeBytes;  // Image size in bytes
    int32_t xPixelPerMeter;   // Pixels per meter in X
    int32_t yPixelPerMeter;   // Pixels per meter in Y
    uint32_t numColors;       // Number of colors in color table
    uint32_t impColors;       // Important colors
};

#pragma pack(pop)

struct COLOR {
    unsigned char r;     // Red Value
    unsigned char g;     // Green value
    unsigned char b;     // Blue value
    unsigned char grey;  // Greyscale value
};

// Type Definitions

typedef struct BITMAPFLEHEADER BMPFileHeader;
typedef struct DIBHEADER DIBHeader;
typedef struct COLOR color;

// Function Prototypes

unsigned char* loadBMP(char* filename, DIBHeader* bitmapInfoHeader);

void getBufferArray(unsigned char* imageData, uint32_t size, const unsigned int bSize, color* buffer[bSize]);

#endif