texture.h

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#ifndef TEXTURE_H
#define TEXTURE_H
 
#include <stdio.h>
#include <string.h>
#include <iostream>
 
//OpenGL
#include <GL/glew.h>
#include <glut.h> //Framework on Mac
 
//------------------------------------------------------------------------------------
 
#define MAX_TEXTURE_SIZE 1000
static unsigned char generated_texture[MAX_TEXTURE_SIZE];
//static float generated_texture[MAX_TEXTURE_SIZE];
 
template <typename TYPE>
TYPE *generateTexture(unsigned int x, unsigned int y, unsigned int z,
                                          TYPE red, TYPE green, TYPE blue, TYPE alpha,
                                          bool debug=false)
{
        int numberOfColorComponents = 4;
        unsigned int data_size = x*y*z*numberOfColorComponents;
 
        if(data_size > MAX_TEXTURE_SIZE)
                std::cout << "-----------------------> Error: trying to create texture bigger than the max size" << std::endl;
 
        for(int i=0; i<data_size; )
        {
                generated_texture[i++] = (TYPE)red;
                generated_texture[i++] = (TYPE)green;
                generated_texture[i++] = (TYPE)blue;
                generated_texture[i++] = (TYPE)alpha;
 
        }
 
        if(debug)
        {
                std::cout.precision(3);
                for(int i=0; i<data_size; ++i)
                {
                        std::cout << ' ' << (TYPE) generated_texture[i];
                }
                std::cout << std::endl;
        }
 
        return generated_texture;
};
 
 
//------------------------------------------------------------------------------------
 
#endif // TEXTURE_H