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