framebuffer.h

#include <GL/glew.h>

#include "defines.h"

struct Framebuffer {
    void create(uint32 width, uint32 height) {
        glGenFramebuffers(1, &fbo);

        glGenTextures(2, textures);

        glBindTexture(GL_TEXTURE_2D, textures[0]);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

        glBindTexture(GL_TEXTURE_2D, textures[1]);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, width, height, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glBindTexture(GL_TEXTURE_2D, 0);

        bind();
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textures[0], 0);
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, textures[1], 0);
        unbind();
    }

    void destroy() {
        glDeleteFramebuffers(1, &fbo);
        // This line was missing in the original implementation in the framebuffer video
        glDeleteTextures(2, textures);
    }

    void bind() {
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
    }

    GLuint getTextureId() {
        return textures[0];
    }

    void unbind() {
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
    }

private:
    GLuint fbo;
    GLuint textures[2];
};