Framebuffer.h

#pragma once

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2018 Filip Wasil and Fillwave community members
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <flw/OpenGL.h>

namespace flw {
namespace flc {

class Framebuffer {
public:
  Framebuffer(GLuint howMany = 1);

  virtual ~Framebuffer();

  void bind(GLuint id = 0) const;

  void attachTexture2D(GLenum attachment, GLenum target, GLuint textureHandle);

  void attachTexture2DDraw(GLenum attachment, GLenum target, GLuint textureHandle);

  void bindForWriting(GLuint id = 0) const;

  void bindForReading(GLuint id = 0) const;

  void setReadColorAttachment(GLuint attachmentColor);

  void setReadDepthAttachment();

  virtual void reload();

  static void bindScreenFramebuffer();

  static void bindScreenFramebufferForReading();

  static void bindScreenFramebufferForWriting();

  GLuint getHandle(GLuint id = 0);

 private:
  GLsizei mHowMany;
  GLuint mHandles[FILLWAVE_GLOBJECTS_MAX];
};

} /* flc */
} /* flw */