| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
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| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef INCLUDED_CANVAS_SURFACEPROXY_HXX |
| #define INCLUDED_CANVAS_SURFACEPROXY_HXX |
| |
| #include <canvas/rendering/isurfaceproxy.hxx> |
| #include <canvas/rendering/icolorbuffer.hxx> |
| |
| #include "pagemanager.hxx" |
| #include "surface.hxx" |
| |
| namespace canvas |
| { |
| |
| ////////////////////////////////////////////////////////////////////////////////// |
| // SurfaceProxy |
| ////////////////////////////////////////////////////////////////////////////////// |
| |
| /** Definition of the surface proxy class. |
| |
| Surface proxies are the connection between *one* source image |
| and *one or more* hardware surfaces (or textures). in a |
| logical structure surface proxies represent soley this |
| dependeny plus some simple cache management. |
| */ |
| class SurfaceProxy : public ISurfaceProxy |
| { |
| public: |
| |
| SurfaceProxy( const canvas::IColorBufferSharedPtr& pBuffer, |
| const PageManagerSharedPtr &pPageManager ); |
| |
| // ISurfaceProxy interface |
| virtual void setColorBufferDirty(); |
| |
| /** Render the surface content to screen. |
| |
| @param fAlpha |
| Overall alpha for content |
| |
| @param rPos |
| Output position |
| |
| @param rTransform |
| Output transformation (does not affect output position) |
| */ |
| virtual bool draw( double fAlpha, |
| const ::basegfx::B2DPoint& rPos, |
| const ::basegfx::B2DHomMatrix& rTransform ); |
| |
| /** Render the surface content to screen. |
| |
| @param fAlpha |
| Overall alpha for content |
| |
| @param rPos |
| Output position |
| |
| @param rArea |
| Subset of the surface to render. Coordinate system are |
| surface area pixel, given area will be clipped to the |
| surface bounds. |
| |
| @param rTransform |
| Output transformation (does not affect output position) |
| */ |
| virtual bool draw( double fAlpha, |
| const ::basegfx::B2DPoint& rPos, |
| const ::basegfx::B2DRange& rArea, |
| const ::basegfx::B2DHomMatrix& rTransform ); |
| |
| /** Render the surface content to screen. |
| |
| @param fAlpha |
| Overall alpha for content |
| |
| @param rPos |
| Output position |
| |
| @param rClipPoly |
| Clip polygon for the surface. The clip polygon is also |
| subject to the output transformation. |
| |
| @param rTransform |
| Output transformation (does not affect output position) |
| */ |
| virtual bool draw( double fAlpha, |
| const ::basegfx::B2DPoint& rPos, |
| const ::basegfx::B2DPolyPolygon& rClipPoly, |
| const ::basegfx::B2DHomMatrix& rTransform ); |
| |
| private: |
| PageManagerSharedPtr mpPageManager; |
| |
| // the pagemanager will distribute the image |
| // to one or more surfaces, this is why we |
| // need a list here. |
| std::vector<SurfaceSharedPtr> maSurfaceList; |
| |
| // pointer to the source of image data |
| // which always is stored in system memory, |
| // 32bit rgba and can have any size. |
| canvas::IColorBufferSharedPtr mpBuffer; |
| }; |
| |
| typedef ::boost::shared_ptr< SurfaceProxy > SurfaceProxySharedPtr; |
| } |
| |
| #endif |