37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
#include <iostream>
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#include <memory>
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#include <GL/glew.h>
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#include "renderer/texture.h"
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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std::unique_ptr<Texture> Texture::LoadFile(const std::string& filename) {
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auto texture = std::make_unique<Texture>();
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int w, h, c;
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unsigned char *data = stbi_load(filename.c_str(), &w, &h, &c, 4);
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if (!data) {
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std::cerr << "ERROR: Failed to load texture under '" << filename << "'" << std::endl;
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std::exit(1);
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}
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glGenTextures(1, &texture.get()->m_id);
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glBindTexture(GL_TEXTURE_2D, texture.get()->m_id);
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// TODO: configure properly
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
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glGenerateMipmap(GL_TEXTURE_2D);
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std::cout << "Loaded texture under '" << filename << "' with size of " << sizeof(data) << " bytes" << std::endl;
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stbi_image_free(data);
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return std::move(texture);
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}
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