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71 lines
3.1 KiB
C++
71 lines
3.1 KiB
C++
/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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*
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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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* are met:
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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_PUBLIC_PLATFORM_WEBEXTERNALTEXTURELAYER_H_
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#define SKY_ENGINE_PUBLIC_PLATFORM_WEBEXTERNALTEXTURELAYER_H_
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#include "sky/engine/public/platform/WebCommon.h"
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#include "sky/engine/public/platform/WebFloatRect.h"
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#include "sky/engine/public/platform/WebLayer.h"
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namespace blink {
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class WebExternalTextureLayerClient;
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// This class represents a layer that renders a texture that is generated
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// externally (not managed by the WebLayerTreeView).
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// The texture will be used by the WebLayerTreeView during compositing passes.
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// When in single-thread mode, this means during WebLayerTreeView::composite().
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// When using the threaded compositor, this can mean at an arbitrary time until
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// the WebLayerTreeView is destroyed.
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class WebExternalTextureLayer {
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public:
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virtual ~WebExternalTextureLayer() { }
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virtual WebLayer* layer() = 0;
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// Clears texture from the layer.
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virtual void clearTexture() = 0;
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// Sets whether every pixel in this layer is opaque. Defaults to false.
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virtual void setOpaque(bool) = 0;
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// Sets whether this layer's texture has premultiplied alpha or not. Defaults to true.
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virtual void setPremultipliedAlpha(bool) = 0;
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// Sets whether the texture should be blended with the background color
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// at draw time. Defaults to false.
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virtual void setBlendBackgroundColor(bool) = 0;
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// Sets whether this context should be rate limited by the compositor. Rate limiting works by blocking
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// invalidate() and invalidateRect() calls if the compositor is too many frames behind.
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// FIXME(sky): Does this do anything in sky now that we don't have paintInvalidation?
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virtual void setRateLimitContext(bool) = 0;
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};
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} // namespace blink
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#endif // SKY_ENGINE_PUBLIC_PLATFORM_WEBEXTERNALTEXTURELAYER_H_
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