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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016 CERN
* Copyright (C) 2017 KiCad Developers, see AUTHORS.txt for contributors.
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <gl_context_mgr.h>
#include <wx/debug.h>
GL_CONTEXT_MANAGER& GL_CONTEXT_MANAGER::Get()
{
static GL_CONTEXT_MANAGER instance;
return instance;
}
wxGLContext* GL_CONTEXT_MANAGER::CreateCtx( wxGLCanvas* aCanvas, const wxGLContext* aOther )
{
wxGLContext* context = new wxGLContext( aCanvas, aOther );
wxCHECK( context, nullptr );
#if wxCHECK_VERSION( 3, 1, 0 )
if( !context->IsOK() )
{
delete context;
return nullptr;
}
#endif /* wxCHECK_VERSION( 3, 1, 0 ) */
m_glContexts.insert( std::make_pair( context, aCanvas ) );
return context;
}
void GL_CONTEXT_MANAGER::DestroyCtx( wxGLContext* aContext )
{
if( m_glContexts.count( aContext ) )
{
m_glContexts.erase( aContext );
delete aContext;
}
else
{
// Do not delete unknown GL contexts
wxFAIL;
}
if( m_glCtx == aContext )
m_glCtx = NULL;
}
void GL_CONTEXT_MANAGER::DeleteAll()
{
m_glCtxMutex.lock();
for( auto& ctx : m_glContexts )
delete ctx.first;
m_glContexts.clear();
m_glCtx = NULL;
m_glCtxMutex.unlock();
}
void GL_CONTEXT_MANAGER::LockCtx( wxGLContext* aContext, wxGLCanvas* aCanvas )
{
wxCHECK( aCanvas || m_glContexts.count( aContext ) > 0, /* void */ );
m_glCtxMutex.lock();
wxGLCanvas* canvas = aCanvas ? aCanvas : m_glContexts.at( aContext );
// Prevent assertion failure in wxGLContext::SetCurrent during GAL teardown
#ifdef __WXGTK__
if( canvas->GetXWindow() )
#endif
{
canvas->SetCurrent( *aContext );
}
m_glCtx = aContext;
}
void GL_CONTEXT_MANAGER::UnlockCtx( wxGLContext* aContext )
{
wxCHECK( m_glContexts.count( aContext ) > 0, /* void */ );
if( m_glCtx == aContext )
{
m_glCtxMutex.unlock();
m_glCtx = NULL;
}
else
{
wxFAIL_MSG( wxString::Format( "Trying to unlock GL context mutex from "
"a wrong context: aContext %p m_glCtx %p", aContext, m_glCtx ) );
}
}
GL_CONTEXT_MANAGER::GL_CONTEXT_MANAGER()
: m_glCtx( NULL )
{
}
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