| /* |
| * 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 blink { |
| |
| // 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: |
| virtual ~WebExternalTextureLayer() { } |
| |
| virtual WebLayer* layer() = 0; |
| |
| // Clears texture from the layer. |
| virtual void clearTexture() = 0; |
| |
| // Sets whether every pixel in this layer is opaque. Defaults to false. |
| virtual void setOpaque(bool) = 0; |
| |
| // Sets whether this layer's texture has premultiplied alpha or not. Defaults to true. |
| virtual void setPremultipliedAlpha(bool) = 0; |
| |
| // Sets whether the texture should be blended with the background color |
| // at draw time. Defaults to false. |
| virtual void setBlendBackgroundColor(bool) = 0; |
| |
| // Sets whether this texture should use nearest neighbor interpolation as |
| // opposed to bilinear. Defaults to false. |
| virtual void setNearestNeighbor(bool) = 0; |
| }; |
| |
| } // namespace blink |
| |
| #endif // WebExternalTextureLayer_h |