www.pudn.com > Particles_OGL.zip > bitmap_class.h

#ifndef	BITMAP_CLASS_H 
#define	BITMAP_CLASS_H 
 
#include  
#include  
 
typedef unsigned char uchar; // Less typing is good 
 
#define TGA_RGB 2 
 
// Class for loading 24 and 32-bit .bmp files 
class CBitmap 
{ 
	public: 
 
		// Constructor() -- Zero's out CBitmap 
		CBitmap():hbitmap(NULL),pixels(NULL),bmp_width(0),bmp_height(0), 
				  bmp_channels(0),bmp_stride(0) { GdiFlush(); /* Guarantee that writing to 
																 CBitmap is okay */ } 
 
		// Data Access Functions ************ 
		 
			inline int getWidth() const { return bmp_width; }  
			inline int getHeight() const { return bmp_height; } 
			inline int getChannels() const { return bmp_channels; } 
			inline int getStride() const { return bmp_stride; } 
					 
		// ****** End of Data Access Functions 
 
		// Creates a "empty" CBitmap with the traits of the parameters passed in 
		// Returns true for success -- false otherwise 
		// If setSize is called on a CBitmap that already has memory associated with it 
		// that memory is freed and the new size is implemented 
		bool setSize(int width, int height, int channels); 
 
		// Loads a bmp with specified "file_name" -- Returns true on success, false otherwise 
		// If loadBMP() is called on a CBitmap that already has memory associated with 
		// it, that memory is freed and the .bmp is loaded 
		bool loadBMP(const char *file_name); 
 
		uchar* getLinePtr(int which_line); // returns a pointer to the line passed in 
		 
		// Deconstructor(); 
		~CBitmap(); 
		 
 
	private: 
 
		int bmp_width; // The width of the bitmap 
		int bmp_height; // The height of the bitmap 
		int bmp_channels; // How many channels is the bitmap (3 == 24-bit, 4 == 32-bit) 
		int bmp_stride; // The TRUE number of bytes in a scan line (in a line of pixels 
					   // in memory) 
 
		HBITMAP hbitmap; // This will be the handle to our bitmap 
		 
		uchar *pixels; // This is a pointer to the actual pixels of the bitmap 
 
		void freeMem(); // Frees all memory associated with CBitmap 
}; 
 
#endif