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#ifndef __APPLE__
#include <GL/gl.h>
#include <GL/glut.h>
#else
#include <OpenGL/gl.h>
#include <GLUT/glut.h>
#endif
#include <stdexcept>
#include "texture.h"
unsigned int Texture::tex() {
return texture;
}
void Texture::build() {
if(!data) {
throw(std::runtime_error("No texture data"));
}
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
//glTexImage2D(GL_TEXTURE_2D, 0, 4, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
if(byte_per_pixel == 4) {
gluBuild2DMipmaps(GL_TEXTURE_2D, 4, width, height, GL_BGRA, GL_UNSIGNED_BYTE, data);
} else if(byte_per_pixel == 3) {
gluBuild2DMipmaps(GL_TEXTURE_2D, 3, width, height, GL_BGR, GL_UNSIGNED_BYTE, data);
}
}
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