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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 WebGLES2Context_h
#define WebGLES2Context_h
#include "WebCommon.h"
#include "WebNonCopyable.h"
namespace WebKit {
struct WebSize;
class WebView;
// This interface abstracts the creation and management of an
// OpenGL ES 2.0 context.
class WebGLES2Context : public WebNonCopyable {
public:
virtual ~WebGLES2Context() {}
virtual bool initialize(WebView*, WebGLES2Context* parent) = 0;
virtual bool makeCurrent() = 0;
virtual bool destroy() = 0;
virtual bool swapBuffers() = 0;
// The follow two functions are for managing a context that renders offscreen.
// Resizes the backing store used for offscreen rendering.
virtual void resizeOffscreenContent(const WebSize&) = 0;
// Returns the ID of the texture used for offscreen rendering in the context of the parent.
virtual unsigned getOffscreenContentParentTextureId() = 0;
// The following function is used only on Mac OS X and is needed
// in order to report window size changes.
#if defined(__APPLE__)
virtual void resizeOnscreenContent(const WebSize&) = 0;
#endif
};
} // namespace WebKit
#endif
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