127 lines
3.1 KiB
C++
127 lines
3.1 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2016 CERN
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* Copyright (C) 2017 KiCad Developers, see AUTHORS.txt for contributors.
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* @author Maciej Suminski <maciej.suminski@cern.ch>
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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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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <gl_context_mgr.h>
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#include <wx/debug.h>
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GL_CONTEXT_MANAGER& GL_CONTEXT_MANAGER::Get()
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{
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static GL_CONTEXT_MANAGER instance;
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return instance;
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}
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wxGLContext* GL_CONTEXT_MANAGER::CreateCtx( wxGLCanvas* aCanvas, const wxGLContext* aOther )
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{
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wxGLContext* context = new wxGLContext( aCanvas, aOther );
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wxCHECK( context, nullptr );
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#if wxCHECK_VERSION( 3, 1, 0 )
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if( !context->IsOK() )
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{
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delete context;
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return nullptr;
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}
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#endif /* wxCHECK_VERSION( 3, 1, 0 ) */
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m_glContexts.insert( std::make_pair( context, aCanvas ) );
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return context;
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}
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void GL_CONTEXT_MANAGER::DestroyCtx( wxGLContext* aContext )
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{
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if( m_glContexts.count( aContext ) )
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{
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m_glContexts.erase( aContext );
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delete aContext;
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}
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else
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{
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// Do not delete unknown GL contexts
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wxFAIL;
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}
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if( m_glCtx == aContext )
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m_glCtx = NULL;
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}
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void GL_CONTEXT_MANAGER::DeleteAll()
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{
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m_glCtxMutex.lock();
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for( auto& ctx : m_glContexts )
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delete ctx.first;
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m_glContexts.clear();
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m_glCtx = NULL;
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m_glCtxMutex.unlock();
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}
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void GL_CONTEXT_MANAGER::LockCtx( wxGLContext* aContext, wxGLCanvas* aCanvas )
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{
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wxCHECK( aCanvas || m_glContexts.count( aContext ) > 0, /* void */ );
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m_glCtxMutex.lock();
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wxGLCanvas* canvas = aCanvas ? aCanvas : m_glContexts.at( aContext );
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// Prevent assertion failure in wxGLContext::SetCurrent during GAL teardown
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#ifdef __WXGTK__
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if( canvas->GetXWindow() )
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#endif
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{
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canvas->SetCurrent( *aContext );
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}
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m_glCtx = aContext;
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}
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void GL_CONTEXT_MANAGER::UnlockCtx( wxGLContext* aContext )
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{
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wxCHECK( m_glContexts.count( aContext ) > 0, /* void */ );
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if( m_glCtx == aContext )
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{
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m_glCtxMutex.unlock();
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m_glCtx = NULL;
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}
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else
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{
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wxFAIL_MSG( wxString::Format( "Trying to unlock GL context mutex from "
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"a wrong context: aContext %p m_glCtx %p", aContext, m_glCtx ) );
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}
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}
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GL_CONTEXT_MANAGER::GL_CONTEXT_MANAGER()
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: m_glCtx( NULL )
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{
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}
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