Texture Atlas Maker

#ifndef _TARGAREADER_H_INCLUDED_
#define _TARGAREADER_H_INCLUDED_

class TargaReader
{
#pragma pack(push)  /* push current alignment to stack */
#pragma pack(1)     /* set alignment to 1 byte boundary */
	class TargaHeader 
	{
		public:
		char  m_idLength;
		char  m_colourMapType;
		char  m_imageType;
		short m_colourMapOrigin;
		short m_colourMapLength;
		char  m_colourMapDepth;
		short m_xOrigin;
		short m_yOrigin;
		short m_width;
		short m_height;
		char  m_bitsPerPixel;
		char  m_imageDescriptor;
	};
#pragma pack(pop) 
public:
	TargaReader();
	~TargaReader();
	void Load(const string& fileName);
	int GetWidth() const
	{
		return m_targaHeader.m_width;
	}
	int GetHeight() const
	{
		return m_targaHeader.m_height;
	}
	unsigned char* GetRawData()
	{
		return (unsigned char*)m_pData;
	}
	int GetBitDepth() const
	{
		return m_targaHeader.m_bitsPerPixel;
	}
private:
	void ReadRLE(FILE *pFile);
	void ReadRLE16(const char* pDataIn, int bufferInSize, int totalPixels);
	void ReadRLE32(const char* pDataIn, int bufferInSize, int totalPixels);
	TargaHeader m_targaHeader;
	char* m_pData;
	int m_dataSize;
};





#endif // _TARGAREADER_H_INCLUDED_