| /************************************************************** |
| * |
| * 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 |
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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 |
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| * |
| *************************************************************/ |
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| |
| |
| #ifndef INCLUDED_CANVAS_ISURFACEPROXYMANAGER_HXX |
| #define INCLUDED_CANVAS_ISURFACEPROXYMANAGER_HXX |
| |
| #include <canvas/rendering/irendermodule.hxx> |
| #include <canvas/rendering/icolorbuffer.hxx> |
| |
| #include <boost/shared_ptr.hpp> |
| |
| |
| namespace canvas |
| { |
| struct ISurfaceProxy; |
| |
| /** Manager interface, which handles surface proxy objects. |
| |
| Typically, each canvas instantiation has one |
| SurfaceProxyManager object, to handle their surfaces. Surfaces |
| itself are opaque objects, which encapsulate a framebuffer to |
| render upon, plus an optional (possibly accelerated) texture. |
| */ |
| struct ISurfaceProxyManager |
| { |
| virtual ~ISurfaceProxyManager() {} |
| |
| /** Create a surface proxy for a color buffer. |
| |
| The whole idea is build around the concept that you create |
| some arbitrary buffer which contains the image data and |
| tell the texture manager about it. From there on you can |
| draw into this image using any kind of graphics api you |
| want. In the technical sense we allocate some space in |
| local videomemory or AGP memory which will be filled on |
| demand, which means if there exists any rendering |
| operation that needs to read from this memory location. |
| This method creates a logical hardware surface object |
| which uses the given color buffer as the image source. |
| Internally this texture may even be distributed to several |
| real hardware surfaces. |
| */ |
| virtual ::boost::shared_ptr< ISurfaceProxy > createSurfaceProxy( |
| const IColorBufferSharedPtr& pBuffer ) const = 0; |
| }; |
| |
| typedef ::boost::shared_ptr< ISurfaceProxyManager > ISurfaceProxyManagerSharedPtr; |
| |
| |
| /** Create a surface proxy for the given render module. |
| */ |
| ISurfaceProxyManagerSharedPtr createSurfaceProxyManager( const IRenderModuleSharedPtr& rRenderModule ); |
| } |
| |
| #endif /* INCLUDED_CANVAS_ISURFACEPROXYMANAGER_HXX */ |