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/*
* Copyright (C) 2012 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GLPlatformSurface_h
#define GLPlatformSurface_h
#if USE(ACCELERATED_COMPOSITING)
#include "GLDefs.h"
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
// Encapsulates a surface that can be rendered to with GL, hiding platform
// specific management.
namespace WebCore {
class GLPlatformSurface {
WTF_MAKE_NONCOPYABLE(GLPlatformSurface);
public:
// Creates a GL surface used for offscreen rendering.
static PassOwnPtr<GLPlatformSurface> createOffscreenSurface();
// Creates a GL surface used for offscreen rendering. The results can be transported
// to the UI process for display.
static PassOwnPtr<GLPlatformSurface> createTransportSurface();
virtual ~GLPlatformSurface();
const IntRect& geometry() const;
// Get the underlying platform specific surface handle.
PlatformSurface handle() const;
PlatformDisplay sharedDisplay() const;
virtual void swapBuffers();
virtual void copyTexture(uint32_t texture, const IntRect& sourceRect);
// Convenience Function to update surface backbuffer with texture contents and restore current FBO.
// Function does the following(in order):
// a)Blits texture contents to back buffer.
// b)Calls Swap Buffers.
// c)Sets current FBO as bindFboId.
virtual void updateContents(uint32_t texture, const IntRect& sourceRect, const GLuint bindFboId);
virtual void setGeometry(const IntRect& newRect);
virtual PlatformSurfaceConfig configuration();
virtual void destroy();
protected:
GLPlatformSurface();
bool m_restoreNeeded;
IntRect m_rect;
GLuint m_fboId;
PlatformDisplay m_sharedDisplay;
PlatformSurface m_drawable;
};
}
#endif
#endif
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