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/*
* Copyright (C) 2011, 2012 Igalia, S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "GLContext.h"
#if USE(OPENGL)
#include <wtf/MainThread.h>
#if USE(GLX)
#include "GLContextGLX.h"
#endif
namespace WebCore {
GLContext* GLContext::sharingContext()
{
ASSERT(isMainThread());
DEFINE_STATIC_LOCAL(OwnPtr<GLContext>, sharing, (createOffscreenContext()));
return sharing.get();
}
PassOwnPtr<GLContext> GLContext::createContextForWindow(uint64_t windowHandle, GLContext* sharingContext)
{
#if USE(GLX)
return GLContextGLX::createContext(windowHandle, sharingContext);
#endif
return nullptr;
}
GLContext::GLContext()
{
}
PassOwnPtr<GLContext> GLContext::createOffscreenContext(GLContext* sharing)
{
#if USE(GLX)
return GLContextGLX::createContext(0, sharing);
#endif
return nullptr;
}
// FIXME: This should be a thread local eventually if we
// want to support using GLContexts from multiple threads.
static GLContext* gCurrentContext = 0;
GLContext::~GLContext()
{
if (this == gCurrentContext)
gCurrentContext = 0;
}
bool GLContext::makeContextCurrent()
{
ASSERT(isMainThread());
gCurrentContext = this;
return true;
}
GLContext* GLContext::getCurrent()
{
ASSERT(isMainThread());
return gCurrentContext;
}
} // namespace WebCore
#endif // USE(OPENGL)
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