TextureLoader.cpp

//
// Created by roudn on 18/06/2022.
//

#include "TextureLoader.hpp"

#define STB_IMAGE_IMPLEMENTATION
#include "lib/stb-master/stb_image.h"

TextureLoader::TextureLoader() {}

TextureLoader::~TextureLoader() {}

GLuint TextureLoader::getTextureID(std::string texFileName) {
    int width;
    int height;
    int channels;

    stbi_uc* image = stbi_load(texFileName.c_str(), &width, &height, &channels, STBI_rgb);

    GLuint mtexture;
    glGenTextures(1,&mtexture);
    glBindTexture(GL_TEXTURE_2D, mtexture);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

    // Set texture filtering parameters
    //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, image);

    glGenerateMipmap(GL_TEXTURE_2D);

    glBindTexture(GL_TEXTURE_2D, 0);
    stbi_image_free(image);

    return mtexture;

}