# OgreCompositionTechnique.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) 2000-2009 Torus Knot Software Ltd
    00008
    00009 Permission is hereby granted, free of charge, to any person obtaining a copy
    00010 of this software and associated documentation files (the "Software"), to deal
    00011 in the Software without restriction, including without limitation the rights
    00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    00013 copies of the Software, and to permit persons to whom the Software is
    00014 furnished to do so, subject to the following conditions:
    00015
    00016 The above copyright notice and this permission notice shall be included in
    00017 all copies or substantial portions of the Software.
    00018
    00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    00025 THE SOFTWARE.
    00026 -----------------------------------------------------------------------------
    00027 */
    00028 #ifndef __CompositionTechnique_H__
    00029 #define __CompositionTechnique_H__
    00030
    00031 #include "OgrePrerequisites.h"
    00032 #include "OgrePixelFormat.h"
    00033 #include "OgreIteratorWrappers.h"
    00034
    00035 namespace Ogre {
    00044     class _OgreExport CompositionTechnique : public CompositorInstAlloc
    00045     {
    00046     public:
    00047         CompositionTechnique(Compositor *parent);
    00048         virtual ~CompositionTechnique();
    00049
    00050         //The scope of a texture defined by the compositor
    00051         enum TextureScope {
    00052             //Local texture - only available to the compositor passes in this technique
    00053             TS_LOCAL,
    00054             //Chain texture - available to the other compositors in the chain
    00055             TS_CHAIN,
    00056             //Global texture - available to everyone in every scope
    00057             TS_GLOBAL
    00058         };
    00059
    00061         class TextureDefinition : public CompositorInstAlloc
    00062         {
    00063         public:
    00064             String name;
    00065             //Texture definition being a reference is determined by these two fields not being empty.
    00066             String refCompName; //If a reference, the name of the compositor being referenced
    00067             String refTexName;  //If a reference, the name of the texture in the compositor being referenced
    00068             size_t width;       // 0 means adapt to target width
    00069             size_t height;      // 0 means adapt to target height
    00070             float widthFactor;  // multiple of target width to use (if width = 0)
    00071             float heightFactor; // multiple of target height to use (if height = 0)
    00072             PixelFormatList formatList; // more than one means MRT
    00073             bool fsaa;          // FSAA enabled; true = determine from main target (if render_scene), false = disable
    00074             bool hwGammaWrite;  // Do sRGB gamma correction on write (only 8-bit per channel formats)
    00075             bool pooled;        // whether to use pooled textures for this one
    00076             TextureScope scope; // Which scope has access to this texture
    00077
    00078             TextureDefinition() :width(0), height(0), widthFactor(1.0f), heightFactor(1.0f),
    00079                 fsaa(true), hwGammaWrite(false), pooled(false), scope(TS_LOCAL) {}
    00080         };
    00082         typedef vector<CompositionTargetPass *>::type TargetPasses;
    00083         typedef VectorIterator<TargetPasses> TargetPassIterator;
    00084         typedef vector<TextureDefinition*>::type TextureDefinitions;
    00085         typedef VectorIterator<TextureDefinitions> TextureDefinitionIterator;
    00086
    00090         TextureDefinition *createTextureDefinition(const String &name);
    00091
    00094         void removeTextureDefinition(size_t idx);
    00095
    00098         TextureDefinition *getTextureDefinition(size_t idx);
    00099
    00102         TextureDefinition *getTextureDefinition(const String& name);
    00103
    00106         size_t getNumTextureDefinitions();
    00107
    00110         void removeAllTextureDefinitions();
    00111
    00113         TextureDefinitionIterator getTextureDefinitionIterator(void);
    00114
    00117         CompositionTargetPass *createTargetPass();
    00118
    00121         void removeTargetPass(size_t idx);
    00122
    00125         CompositionTargetPass *getTargetPass(size_t idx);
    00126
    00129         size_t getNumTargetPasses();
    00130
    00133         void removeAllTargetPasses();
    00134
    00136         TargetPassIterator getTargetPassIterator(void);
    00137
    00140         CompositionTargetPass *getOutputTargetPass();
    00141
    00145         virtual bool isSupported(bool allowTextureDegradation);
    00146
    00150         virtual void setSchemeName(const String& schemeName);
    00152         const String& getSchemeName() const { return mSchemeName; }
    00153
    00157         void setCompositorLogicName(const String& compositorLogicName)
    00158             { mCompositorLogicName = compositorLogicName; }
    00160         const String& getCompositorLogicName() const { return mCompositorLogicName; }
    00161
    00163         Compositor *getParent();
    00164     private:
    00166         Compositor *mParent;
    00168         TextureDefinitions mTextureDefinitions;
    00169
    00171         TargetPasses mTargetPasses;
    00173         CompositionTargetPass *mOutputTarget;
    00174
    00176         String mSchemeName;
    00177
    00179         String mCompositorLogicName;
    00180
    00181     };
    00185 }
    00186
    00187 #endif

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:24:51