mirror of https://github.com/OpenTTD/OpenTTD.git
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file opengl.h OpenGL video driver support. */
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#ifndef VIDEO_OPENGL_H
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#define VIDEO_OPENGL_H
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#include "../core/alloc_type.hpp"
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/** Platform-independent back-end singleton class for OpenGL video drivers. */
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class OpenGLBackend : public ZeroedMemoryAllocator {
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private:
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static OpenGLBackend *instance; ///< Singleton instance pointer.
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void *vid_buffer; ///< Pointer to the memory used for the video driver to draw to.
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GLuint vid_texture; ///< Texture handle for the video buffer texture.
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OpenGLBackend();
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~OpenGLBackend();
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const char *Init();
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public:
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/** Get singleton instance of this class. */
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static inline OpenGLBackend *Get()
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{
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return OpenGLBackend::instance;
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}
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static const char *Create();
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static void Destroy();
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bool Resize(int w, int h, bool force = false);
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void Paint();
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/**
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* Get a pointer to the memory for the video driver to draw to.
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* @return Pointer to draw on.
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*/
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void *GetVideoBuffer() { return this->vid_buffer; }
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};
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#endif /* VIDEO_OPENGL_H */
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