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/*
* Copyright (C) 2011 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:
*
* 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 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 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 WebExternalTextureLayer_h
#define WebExternalTextureLayer_h
#include "WebCommon.h"
#include "WebFloatRect.h"
#include "WebLayer.h"
namespace WebKit {
class WebExternalTextureLayerImpl;
// This class represents a layer that renders a texture that is generated
// externally (not managed by the WebLayerTreeView).
// The texture will be used by the WebLayerTreeView during compositing passes.
// When in single-thread mode, this means during WebLayerTreeView::composite().
// When using the threaded compositor, this can mean at an arbitrary time until
// the WebLayerTreeView is destroyed.
class WebExternalTextureLayer : public WebLayer {
public:
WEBKIT_EXPORT static WebExternalTextureLayer create();
WebExternalTextureLayer() { }
WebExternalTextureLayer(const WebExternalTextureLayer& layer) : WebLayer(layer) { }
virtual ~WebExternalTextureLayer() { }
WebExternalTextureLayer& operator=(const WebExternalTextureLayer& layer)
{
WebLayer::assign(layer);
return *this;
}
// Sets the texture id that represents the layer, in the namespace of the
// compositor context.
WEBKIT_EXPORT void setTextureId(unsigned);
WEBKIT_EXPORT unsigned textureId() const;
// Sets whether or not the texture should be flipped in the Y direction when
// rendered.
WEBKIT_EXPORT void setFlipped(bool);
WEBKIT_EXPORT bool flipped() const;
// Sets the rect in UV space of the texture that is mapped to the layer
// bounds.
WEBKIT_EXPORT void setUVRect(const WebFloatRect&);
WEBKIT_EXPORT WebFloatRect uvRect() const;
// Marks a region of the layer as needing a display. These regions are
// collected in a union until the display occurs.
WEBKIT_EXPORT void invalidateRect(const WebFloatRect&);
#if WEBKIT_IMPLEMENTATION
WebExternalTextureLayer(const WTF::PassRefPtr<WebExternalTextureLayerImpl>&);
WebExternalTextureLayer& operator=(const WTF::PassRefPtr<WebExternalTextureLayerImpl>&);
operator WTF::PassRefPtr<WebExternalTextureLayerImpl>() const;
#endif
};
} // namespace WebKit
#endif // WebExternalTextureLayer_h
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