RenderTargetGL.h

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// Copyright © 2008-2024 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _OGL_RENDERTARGET_H
#define _OGL_RENDERTARGET_H
/*
 * Framebuffer object with switchable target textures.
 * In theory you should use one texture format and size per FBO
 * 2013-May-05 left out stencil buffer because we don't need it now
 */
#include "OpenGLLibs.h"
#include "graphics/RenderTarget.h"
 
namespace Graphics {
 
    class RendererOGL;
 
    namespace OGL {
        class RenderStateCache;
        class CommandList;
 
        class RenderTarget : public Graphics::RenderTarget {
        public:
            enum Binding {
                READ = 1,
                DRAW = 2,
                BOTH = 3
            };
 
            ~RenderTarget();
            virtual Texture *GetColorTexture() const override final;
            virtual Texture *GetDepthTexture() const override final;
            virtual void SetCubeFaceTexture(const Uint32 face, Texture *t) override final;
            virtual void SetColorTexture(Texture *) override final;
            virtual void SetDepthTexture(Texture *) override final;
 
        protected:
            friend class Graphics::RendererOGL;
            friend class RenderStateCache;
            friend class CommandList;
 
            RenderTarget(RendererOGL *, const RenderTargetDesc &);
            void Bind(Binding bind = BOTH);
            void Unbind(Binding bind = BOTH);
            void CreateDepthRenderbuffer();
            bool CheckStatus();
 
            RendererOGL *m_renderer;
 
            bool m_active;
            GLuint m_fbo;
            GLuint m_depthRenderBuffer;
 
            RefCountedPtr<Texture> m_colorTexture;
            RefCountedPtr<Texture> m_depthTexture;
        };
 
    } // namespace OGL
 
} // namespace Graphics
 
#endif