RenderbufferRenderTarget.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#pragma once
 
 
#include <AUI/Util/kAUI.h>
#include <AUI/GL/Framebuffer.h>
#include <AUI/GL/GLEnums.h>
#include <AUI/GL/Renderbuffer.h>
#include <memory>
 
namespace gl {
 
 
   template<InternalFormat internalFormat /* = GL_DEPTH_COMPONENT24 */,
            Multisampling multisampling = Multisampling::DISABLED>
   class RenderbufferRenderTarget final: public Framebuffer::IRenderTarget {
   public:
       RenderbufferRenderTarget() {
       }
 
   protected:
       void attach(Framebuffer& to, GLenum attachmentType) override {
           glGetError();
           onFramebufferResize(to.supersampledSize());
           if (glGetError() != GL_NO_ERROR) {
               throw AException("unable to initialize renderbuffer storage");
           }
           to.bind();
           glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachmentType, GL_RENDERBUFFER, mRenderbuffer.handle());
           if (glGetError() != GL_NO_ERROR) {
               throw AException("unable to create renderbuffer target");
           }
       }
 
       void onFramebufferResize(glm::u32vec2 size) override {
           mRenderbuffer.storage(size, internalFormat);
       }
 
   private:
       Renderbuffer<multisampling> mRenderbuffer;
   };
}

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