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//external libs
#include "glad/glad.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"

// project headers
#include "texture.hpp"

// std libs
#include <iostream>

namespace Ogle
{
	Texture::Texture(const char* texture_path)
	{
		glGenTextures(1, &id);
		glBindTexture(GL_TEXTURE_2D, id);
		// set the texture wrapping/filtering options (on the currently bound texture object)
		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_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
		int width, height, nrChannels;
		unsigned char *data = stbi_load(texture_path, &width, &height, &nrChannels, 0);
		if (data)
		{
			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
			glGenerateMipmap(GL_TEXTURE_2D);
		}
		else
		{
			std::cout << "Failed to load texture" << std::endl;
		}
		stbi_image_free(data);
	}
}