renderbuffer.cpp

#include "renderbuffer.h"
 
using namespace sgltk;
 
Renderbuffer::Renderbuffer() {
    this->format = GL_FLOAT;
    this->width = 100;
    this->height = 100;
    glGenRenderbuffers(1, &buffer);
    bind();
    glRenderbufferStorage(GL_RENDERBUFFER, format, width, height);
    unbind();
}
 
Renderbuffer::Renderbuffer(unsigned int width,
               unsigned int height,
               GLenum format) {
    this->format = format;
    this->width = width;
    this->height = height;
    glGenRenderbuffers(1, &buffer);
    bind();
    glRenderbufferStorage(GL_RENDERBUFFER, format, width, height);
    unbind();
}
 
Renderbuffer::~Renderbuffer() {
    glDeleteRenderbuffers(1, &buffer);
}
 
void Renderbuffer::bind() {
    glBindRenderbuffer(GL_RENDERBUFFER, buffer);
}
 
void Renderbuffer::unbind() {
    glBindRenderbuffer(GL_RENDERBUFFER, 0);
}
 
void Renderbuffer::set_format(GLenum format) {
    this->format = format;
    bind();
    glRenderbufferStorage(GL_RENDERBUFFER, format, width, height);
    unbind();
}
 
void Renderbuffer::set_size(unsigned int width, unsigned int height) {
    this->width = width;
    this->height = height;
    bind();
    glRenderbufferStorage(GL_RENDERBUFFER, format, width, height);
    unbind();
}