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texture.cpp
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texture.cpp
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#include "texture.h"
#include "lodepng.h"
#include <vector>
#include <iostream>
#include <cstdio>
using namespace std;
bool Texture::load(char * fn) {
vector<unsigned char> png;
vector<unsigned char> image;
unsigned error;
error = lodepng::load_file(png, fn);
if (error) {
cout << "Error " << error << " loading image " << fn << endl;
cout << endl;
return false;
}
error = lodepng::decode(image, w, h, png);
if (error) {
cout << "Error " << error << " loading image " << fn << endl;
cout << endl;
return false;
}
glGenTextures(1, &buf);
glBindTexture(GL_TEXTURE_2D, buf);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, &image[0]);
gluBuild2DMipmaps(GL_TEXTURE_2D, GL_RGBA, w, h, GL_RGBA, GL_UNSIGNED_BYTE, &image[0]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
cout << "Texture: " << fn << " is successfully loaded" << endl;
cout << endl;
return true;
}
void Texture::bind() {
glBindTexture(GL_TEXTURE_2D, buf);
}