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/*
Copyright (C) 2015 The Qt Company Ltd
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef GraphicsSurfaceToken_h
#define GraphicsSurfaceToken_h
#include "GraphicsContext.h"
#include "IntRect.h"
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#if USE(GRAPHICS_SURFACE)
namespace WebCore {
struct GraphicsSurfaceToken {
#if OS(DARWIN)
typedef mach_port_t BufferHandle;
#elif OS(LINUX)
typedef uint32_t BufferHandle;
#elif OS(WINDOWS)
typedef HANDLE BufferHandle;
#endif
#if OS(DARWIN) || OS(WINDOWS)
GraphicsSurfaceToken(BufferHandle frontBuffer = 0, BufferHandle backBuffer = 0)
: frontBufferHandle(frontBuffer)
, backBufferHandle(backBuffer)
{ }
bool operator!=(const GraphicsSurfaceToken &rhs) const
{
return (frontBufferHandle != rhs.frontBufferHandle || backBufferHandle != rhs.backBufferHandle);
}
bool isValid() const
{
return frontBufferHandle && backBufferHandle;
}
BufferHandle backBufferHandle;
#else
GraphicsSurfaceToken(uint32_t windowID = 0)
: frontBufferHandle(windowID)
{ }
bool operator!=(const GraphicsSurfaceToken &rhs) const
{
return frontBufferHandle != rhs.frontBufferHandle;
}
bool isValid() const
{
return frontBufferHandle;
}
#endif
BufferHandle frontBufferHandle;
};
}
#endif // USE(GRAPHICS_SURFACE)
#endif // GraphicsSurfaceToken_h
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