# OgreCompositorChain.h

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2005 The OGRE Team
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023 -----------------------------------------------------------------------------
    00024 */
    00025 #ifndef __CompositorChain_H__
    00026 #define __CompositorChain_H__
    00027
    00028 #include "OgrePrerequisites.h"
    00029 #include "OgreRenderTargetListener.h"
    00030 #include "OgreRenderQueueListener.h"
    00031 #include "OgreCompositorInstance.h"
    00032 #include "OgreCompositor.h"
    00033 namespace Ogre {
    00034
    00037     class _OgreExport CompositorChain: public RenderTargetListener
    00038     {
    00039     public:
    00040         CompositorChain(Viewport *vp);
    00045         virtual ~CompositorChain();
    00046
    00048         typedef std::vector<CompositorInstance*> Instances;
    00049         typedef VectorIterator<Instances> InstanceIterator;
    00050
    00052         static const size_t LAST = (size_t)-1;
    00054         static const size_t BEST = 0;
    00055
    00062         CompositorInstance* addCompositor(CompositorPtr filter, size_t addPosition=LAST, size_t technique=BEST);
    00063
    00067         void removeCompositor(size_t position=LAST);
    00068
    00071         size_t getNumCompositors();
    00072
    00075         void removeAllCompositors();
    00076
    00079         CompositorInstance *getCompositor(size_t index);
    00080
    00083         CompositorInstance* _getOriginalSceneCompositor(void) { return mOriginalScene; }
    00084
    00087         InstanceIterator getCompositors();
    00088
    00094         void setCompositorEnabled(size_t position, bool state);
    00095
    00097         virtual void preRenderTargetUpdate(const RenderTargetEvent& evt);
    00099         virtual void preViewportUpdate(const RenderTargetViewportEvent& evt);
    00101         virtual void postViewportUpdate(const RenderTargetViewportEvent& evt);
    00103         virtual void viewportRemoved(const RenderTargetViewportEvent& evt);
    00104
    00107         void _markDirty();
    00108
    00111         Viewport *getViewport();
    00112
    00116         void _removeInstance(CompositorInstance *i);
    00117
    00119         void _queuedOperation(CompositorInstance::RenderSystemOperation* op);
    00120
    00121     protected:
    00123         Viewport *mViewport;
    00124
    00127         CompositorInstance *mOriginalScene;
    00128
    00130         Instances mInstances;
    00131
    00133         bool mDirty;
    00135         bool mAnyCompositorsEnabled;
    00136
    00138         CompositorInstance::CompiledState mCompiledState;
    00139         CompositorInstance::TargetOperation mOutputOperation;
    00143         typedef std::vector<CompositorInstance::RenderSystemOperation*> RenderSystemOperations;
    00144         RenderSystemOperations mRenderSystemOperations;
    00145
    00146
    00148         void clearCompiledState();
    00149
    00152         void _compile();
    00153
    00156         void preTargetOperation(CompositorInstance::TargetOperation &op, Viewport *vp, Camera *cam);
    00157
    00160         void postTargetOperation(CompositorInstance::TargetOperation &op, Viewport *vp, Camera *cam);
    00161
    00163         void destroyResources(void);
    00164
    00166         class RQListener: public RenderQueueListener
    00167         {
    00168         public:
    00171             virtual void renderQueueStarted(uint8 id, const String& invocation, bool& skipThisQueue);
    00174             virtual void renderQueueEnded(uint8 id, const String& invocation, bool& repeatThisQueue);
    00175
    00177             void setOperation(CompositorInstance::TargetOperation *op,SceneManager *sm,RenderSystem *rs);
    00178
    00180             void notifyViewport(Viewport* vp) { mViewport = vp; }
    00181
    00183             void flushUpTo(uint8 id);
    00184         private:
    00185             CompositorInstance::TargetOperation *mOperation;
    00186             SceneManager *mSceneManager;
    00187             RenderSystem *mRenderSystem;
    00188             Viewport* mViewport;
    00189             CompositorInstance::RenderSystemOpPairs::iterator currentOp, lastOp;
    00190         };
    00191         RQListener mOurListener;
    00193         unsigned int mOldClearEveryFrameBuffers;
    00195         uint32 mOldVisibilityMask;
    00197         bool mOldFindVisibleObjects;
    00199         float mOldLodBias;
    00201         String mOldMaterialScheme;
    00202     };
    00203 }
    00204
    00205 #endif

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Sep 17 15:39:07 2006