TextureManager.h

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/*
Autor: $Author: kunkel $ State: $State: Exp $
Datum: $Date: 2005/05/30 12:35:25 $
Version: $Revision: 1.1 $
*/

#ifndef TEXTURE_H
#define TEXTURE_H

#include "config.h"
#include <png.h>
#include <GL/glu.h>
#include <string>

using namespace std;

class TextureManager {
private:
    enum {PNG_BYTES_TO_CHECK = 4,ERROR = -1};
    class oneTexture {
    public:

        GLuint number;

        string name;

        int references;

        unsigned int width;

        unsigned int height;

        GLbyte * data;

        oneTexture():references(0) {}
    }
    ;

    oneTexture textureArray[MAX_TEXTURES];

    bool check_if_png(FILE *fp);

    bool read_png(const char *fname, oneTexture & target);

    void createPNGTexture(const string & filename,
                          oneTexture & targetTexture, bool createMipmaps);
public:
    ~TextureManager();

    unsigned short getTextureNumber(const string & tex);

    GLuint getOpenglTexture(unsigned short num);

    void freeReference(unsigned short texture);

    void freeTextures();
};

extern TextureManager ourTextureManager;

#endif

---