OAG Library (OpenGL) Part 2.3 - Drawing 2D Textures Using the Mouse and Programatically

#ifndef OAG_OAGPCXTEXTURE_H
#define OAG_OAGPCXTEXTURE_H

#include "..\..\include\Texture\OAGTexture.h"

#ifdef _WIN32
#include <pshpack1.h>
#include <poppack.h>
#endif

#pragma pack(push, 1)

typedef struct _OAG_PCXHEADER
{
  GLubyte manufacturer;
  GLubyte version;
  GLubyte encoding;
  GLubyte bitsPerPixel;

  GLushort xmin, ymin;
  GLushort xmax, ymax;
  GLushort horzRes, vertRes;

  GLubyte palette[48];
  GLubyte reserved;
  GLubyte numColorPlanes;

  GLushort bytesPerScanLine;
  GLushort paletteType;
  GLushort horzSize, vertSize;

  GLubyte padding[54];

}OAG_PCXHEADER;

#pragma pack(pop)


namespace oag
{
	class OAGPCXTexture : public oag::OAGTexture
	{
	public:
		OAGPCXTexture(void);
		virtual ~OAGPCXTexture(void);

	//Attributes
	private:
		OAG_PCXHEADER			m_pcxHeader;

	//Operations
	private:
		bool ReadPCXFile (std::string strFileName);
		void ReadPCX1bit (FILE *fp, OAG_PCXHEADER* hdr, OAG_TEXTURE* texinfo);
		void ReadPCX4bits(FILE *fp, OAG_PCXHEADER* hdr, OAG_TEXTURE* texinfo);
		void ReadPCX8bits(FILE *fp, OAG_PCXHEADER* hdr, OAG_TEXTURE* texinfo);
		void ReadPCX24bits(FILE *fp, OAG_PCXHEADER* hdr, OAG_TEXTURE* texinfo);

	public:
		bool LoadTextureFromDisk(std::string strFileName);	// Loads a file as a texture
		void BuildTexture();
		//void SetDefaultFilter();

	};

};

#endif //OAG_OAGPCXTEXTURE_H