EasyBMP_DataStructures.h

/*************************************************
*                                                *
*  EasyBMP Cross-Platform Windows Bitmap Library *
*                                                *
*  Author: Paul Macklin                          *
*   email: macklin01@users.sourceforge.net       *
* support: http://easybmp.sourceforge.net        *
*                                                *
*          file: EasyBMP_DataStructures.h        *
*    date added: 05-02-2005                      *
* date modified: 12-01-2006                      *
*       version: 1.06                            *
*                                                *
*   License: BSD (revised/modified)              *
* Copyright: 2005-6 by the EasyBMP Project       *
*                                                *
* description: Defines basic data structures for *
*              the BMP class                     *
*                                                *
*************************************************/

#ifndef _EasyBMP_Custom_Math_Functions_
#define _EasyBMP_Custom_Math_Functions_
inline double Square(double number)
{
	return number*number;
}

inline int IntSquare(int number)
{
	return number*number;
}
#endif

int IntPow(int base, int exponent);

#ifndef _EasyBMP_Defined_WINGDI
#define _EasyBMP_Defined_WINGDI
typedef unsigned char  ebmpBYTE;
typedef unsigned short ebmpWORD;
typedef unsigned int  ebmpDWORD;
#endif

#ifndef _EasyBMP_DataStructures_h_
#define _EasyBMP_DataStructures_h_

inline bool IsBigEndian()
{
	short word = 0x0001;
	if ((*(char *)& word) != 0x01)
	{
		return true;
	}
	return false;
}

inline ebmpWORD FlipWORD(ebmpWORD in)
{
	return ((in >> 8) | (in << 8));
}

inline ebmpDWORD FlipDWORD(ebmpDWORD in)
{
	return (((in & 0xFF000000) >> 24) | ((in & 0x000000FF) << 24) |
		((in & 0x00FF0000) >> 8) | ((in & 0x0000FF00) << 8));
}

// it's easier to use a struct than a class
// because we can read/write all four of the bytes 
// at once (as we can count on them being continuous 
// in memory

typedef struct RGBApixel {
	ebmpBYTE Blue;
	ebmpBYTE Green;
	ebmpBYTE Red;
	ebmpBYTE Alpha;
} RGBApixel;

class BMFH{
public:
	ebmpWORD  bfType;
	ebmpDWORD bfSize;
	ebmpWORD  bfReserved1;
	ebmpWORD  bfReserved2;
	ebmpDWORD bfOffBits;

	BMFH();
	void display(void);
	void SwitchEndianess(void);
};

class BMIH{
public:
	ebmpDWORD biSize;
	ebmpDWORD biWidth;
	ebmpDWORD biHeight;
	ebmpWORD  biPlanes;
	ebmpWORD  biBitCount;
	ebmpDWORD biCompression;
	ebmpDWORD biSizeImage;
	ebmpDWORD biXPelsPerMeter;
	ebmpDWORD biYPelsPerMeter;
	ebmpDWORD biClrUsed;
	ebmpDWORD biClrImportant;

	BMIH();
	void display(void);
	void SwitchEndianess(void);
};

#endif