72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
// framebuffer.h
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//
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// Copyright (C) 2010-2020, the Celestia Development Team
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// Original version by Chris Laurel <claurel@gmail.com>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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#pragma once
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#include "glsupport.h"
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class FramebufferObject
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{
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public:
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enum
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{
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ColorAttachment = 0x1,
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DepthAttachment = 0x2
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};
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FramebufferObject() = delete;
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FramebufferObject(GLuint width, GLuint height, unsigned int attachments);
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FramebufferObject(const FramebufferObject&) = delete;
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FramebufferObject(FramebufferObject&&);
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FramebufferObject& operator=(const FramebufferObject&) = delete;
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FramebufferObject& operator=(FramebufferObject&&);
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~FramebufferObject();
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static inline bool isSupported();
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bool isValid() const;
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GLuint width() const
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{
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return m_width;
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}
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GLuint height() const
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{
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return m_height;
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}
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GLuint colorTexture() const;
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GLuint depthTexture() const;
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bool bind();
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bool unbind(GLint oldfboId);
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private:
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void generateColorTexture();
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void generateDepthTexture();
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void generateFbo(unsigned int attachments);
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void cleanup();
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private:
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GLuint m_width;
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GLuint m_height;
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GLuint m_colorTexId;
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GLuint m_depthTexId;
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GLuint m_fboId;
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GLenum m_status;
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};
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bool FramebufferObject::isSupported()
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{
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#ifdef GL_ES
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return true;
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#else
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return celestia::gl::EXT_framebuffer_object;
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#endif
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}
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