GLTexture.h

//////////////////////////////////////////////////////////////////////
//
// OpenGL Texture Class
// by: Matthew Fairfax
//
// GLTexture.h: interface for the GLTexture class.
// This class loads a texture file and prepares it
// to be used in OpenGL. It can open a bitmap or a
// targa file. The min filter is set to mipmap b/c
// they look better and the performance cost on
// modern video cards in negligible. I leave all of
// the texture management to the application. I have
// included the ability to load the texture from a
// Visual Studio resource. The bitmap's id must be
// be surrounded by quotation marks (i.e. "Texture.bmp").
// The targa files must be in a resource type of "TGA"
// (including the quotes). The targa's id must be
// surrounded by quotation marks (i.e. "Texture.tga").
//
// Usage:
// GLTexture tex;
// GLTexture tex1;
// GLTexture tex3;
//
// tex.Load("texture.bmp"); // Loads a bitmap
// tex.Use();				// Binds the bitmap for use
// 
// tex1.LoadFromResource("texture.tga"); // Loads a targa
// tex1.Use();				 // Binds the targa for use
//
// // You can also build a texture with a single color and use it
// tex3.BuildColorTexture(255, 0, 0);	// Builds a solid red texture
// tex3.Use();				 // Binds the targa for use
//
//////////////////////////////////////////////////////////////////////

#ifndef GLTEXTURE_H
#define GLTEXTURE_H

#include <windows.h>		// Header File For Windows
#include <gl\gl.h>			// Header File For The OpenGL32 Library
#include <gl\glu.h>			// Header File For The GLu32 Library
#include "GLAUX.H"		// Header File For The Glaux Library

#pragma comment(lib, "glaux")

class GLTexture  
{
public:
	char *texturename;								// The textures name
	unsigned int texture[1];						// OpenGL's number for the texture
	int width;										// Texture's width
	int height;										// Texture's height
	void Use();										// Binds the texture for use
	void BuildColorTexture(unsigned char r, unsigned char g, unsigned char b);	// Sometimes we want a texture of uniform color
	void LoadTGAResource(char *name);				// Load a targa from the resources
	void LoadBMPResource(char *name);				// Load a bitmap from the resources
	void LoadFromResource(char *name);				// Load the texture from a resource
	void LoadTGA(char *name);						// Loads a targa file
	void LoadBMP(char *name);						// Loads a bitmap file
	void Load(char *name);							// Load the texture
	GLTexture();									// Constructor
	virtual ~GLTexture();							// Destructor

};

#endif GLTEXTURE_H