gl_context_mgr.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2016 CERN
 * Copyright (C) 2020-2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Maciej Suminski <[email protected]>
 *
 * This program 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; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
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 */
 
#ifndef GL_CONTEXT_MANAGER_H
#define GL_CONTEXT_MANAGER_H
 
#include <wx/glcanvas.h>
#include <mutex>
#include <map>
 
class GL_CONTEXT_MANAGER
{
public:
 static GL_CONTEXT_MANAGER& Get();
 
 wxGLContext* CreateCtx( wxGLCanvas* aCanvas, const wxGLContext* aOther = nullptr );
 
 void DestroyCtx( wxGLContext* aContext );
 
 void DeleteAll();
 
 void LockCtx( wxGLContext* aContext, wxGLCanvas* aCanvas );
 
 void UnlockCtx( wxGLContext* aContext );
 
private:
 std::map<wxGLContext*, wxGLCanvas*> m_glContexts;
 
 wxGLContext* m_glCtx;
 
 std::mutex m_glCtxMutex;
 
 // Singleton
 GL_CONTEXT_MANAGER();
 GL_CONTEXT_MANAGER( const GL_CONTEXT_MANAGER& );
 void operator=( const GL_CONTEXT_MANAGER& );
};
 
#endif /* GL_CONTEXT_MANAGER_H */