pixel_buffer.hpp

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#ifndef GLK_PIXEL_BUFFER_HPP
#define GLK_PIXEL_BUFFER_HPP
 
#include <memory>
#include <GL/gl3w.h>
#include <Eigen/Core>
 
#include <glk/texture.hpp>
 
namespace glk {
 
class PixelBuffer {
public:
  PixelBuffer(const Eigen::Vector2i& size, int bytes_per_pixel);
  ~PixelBuffer();
 
  void copy_from_texture(const glk::Texture& texture, GLuint format, GLuint type);
 
  template <typename T>
  std::vector<T> read_pixels();
 
private:
  int width;
  int height;
  int bytes_per_pixel;
 
  GLuint pixel_buffer;
};
 
}
 
#endif