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//

//	bmp.h - header file / freeware

//

//	David Henry - tfc_duke@hotmail.com

//

#ifndef		__BITMAP_H_

#define		__BITMAP_H_

// magic number "BM"

#define			BITMAP_ID			('B' + ('M'<<8))

// header byte type for RLE

#define			RLE_COMMAND			0

#define			RLE_ENDOFLINE		0

#define			RLE_ENDOFBITMAP		1

#define			RLE_DELTA			2

#define			BI_OS2				-1

// compression type

#define			BI_RGB				0

#define			BI_RLE8				1

#define			BI_RLE4				2

#define			BI_BITFIELDS		3

#pragma warning( disable : 4103 )

// --------------------------------------------

// tagBITMAPFILEHEADER - bitmap file header.

// --------------------------------------------

#pragma pack(2)

typedef struct tagBITMAPFILEHEADER		// bmfh

{

	unsigned short	bfType;				// magic number "BM"

	unsigned int	bfSize;				// file size

	unsigned short	bfReserved1;		// reserved

	unsigned short	bfReserved2;		// reserved

	unsigned int	bfOffBits;			// offset to bitmap data

} BITMAPFILEHEADER, *PBITMAPFILEHEADER;

#pragma pack(4)

// --------------------------------------------

// tagBITMAPCOREHEADER - bitmap core header.

// --------------------------------------------

typedef struct tagBITMAPCOREHEADER		// bmch

{

	unsigned int	bcSize;				// size of the structure

	unsigned short	bcWidth;			// image width

	unsigned short	bcHeight;			// image height

	unsigned short	bcPlanes;			// must be equal to 1

	unsigned short	bcBitCount;			// number of bits per pixel

} BITMAPCOREHEADER, *PBITMAPCOREHEADER;

// --------------------------------------------

// tagRGBTRIPLE - 24 bits pixel

// --------------------------------------------

typedef struct tagRGBTRIPLE			// rgbt

{

	unsigned char	rgbtBlue;		// blue

	unsigned char	rgbtGreen;		// green

	unsigned char	rgbtRed;		// red

} RGBTRIPLE, *PRGBTRIPLE;

// --------------------------------------------

// tagRGBQUAD - 32 bits pixel

// --------------------------------------------

typedef struct tagRGBQUAD			// rgbt

{

	unsigned char	rgbBlue;		// blue

	unsigned char	rgbGreen;		// green

	unsigned char	rgbRed;			// red

	unsigned char	rgbReserved;	// reserved

} RGBQUAD, *PRGBQUAD;

// --------------------------------------------

// tagBITMAPCOREINFO - bitmap core info.

// --------------------------------------------

typedef struct tagBITMAPCOREINFO		// bmci

{

	BITMAPCOREHEADER	bmciHeader;		// size of the structure

	RGBTRIPLE			bcmiColors[1];	// color palette

} BITMAPCOREINFO, *PBITMAPCOREINFO;

// --------------------------------------------

// BITMAPFILEHEADER - bitmap info header.

// --------------------------------------------

typedef struct tagBITMAPINFOHEADER

{

	unsigned int	biSize;				// size of the structure

	int				biWidth;			// image width

	int				biHeight;			// image height

	unsigned short	biPlanes;			// must be equal to 1

	unsigned short	biBitCount;			// number of bits per pixel

	unsigned int	biCompression;		// compression type

	unsigned int	biSizeImage;		// size of data bitmap

	int				biXPelsPerMeter;	// number of pixels per meter on the X axis

	int				biYPelsPerMeter;	// number of pixels per meter on the Y axis

	unsigned int	biClrUsed;			// number of colors used

	unsigned int	biClrImportant;		// number of important colors

} BITMAPINFOHEADER, *PBITMAPINFOHEADER;

// prototype

int LoadFileBMP( const char *filename, unsigned char **pixels, int *width, int *height, bool flipvert );

#endif // __BITMAP_H_