# OgreRenderTarget.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 __RenderTarget_H__
    00029 #define __RenderTarget_H__
    00030
    00031 #include "OgrePrerequisites.h"
    00032
    00033 #include "OgreString.h"
    00034 #include "OgreTextureManager.h"
    00035 #include "OgreViewport.h"
    00036 #include "OgreTimer.h"
    00037
    00038 /* Define the number of priority groups for the render system's render targets. */
    00039 #ifndef OGRE_NUM_RENDERTARGET_GROUPS
    00040     #define OGRE_NUM_RENDERTARGET_GROUPS 10
    00041     #define OGRE_DEFAULT_RT_GROUP 4
    00042     #define OGRE_REND_TO_TEX_RT_GROUP 2
    00043 #endif
    00044
    00045 namespace Ogre {
    00046
    00064     class _OgreExport RenderTarget : public RenderSysAlloc
    00065     {
    00066     public:
    00067         enum StatFlags
    00068         {
    00069             SF_NONE           = 0,
    00070             SF_FPS            = 1,
    00071             SF_AVG_FPS        = 2,
    00072             SF_BEST_FPS       = 4,
    00073             SF_WORST_FPS      = 8,
    00074             SF_TRIANGLE_COUNT = 16,
    00075             SF_ALL            = 0xFFFF
    00076         };
    00077
    00078         struct FrameStats
    00079         {
    00080             float lastFPS;
    00081             float avgFPS;
    00082             float bestFPS;
    00083             float worstFPS;
    00084             unsigned long bestFrameTime;
    00085             unsigned long worstFrameTime;
    00086             size_t triangleCount;
    00087             size_t batchCount;
    00088         };
    00089
    00090         enum FrameBuffer
    00091         {
    00092             FB_FRONT,
    00093             FB_BACK,
    00094             FB_AUTO
    00095         };
    00096
    00097         RenderTarget();
    00098         virtual ~RenderTarget();
    00099
    00101         virtual const String& getName(void) const;
    00102
    00104         virtual void getMetrics(unsigned int& width, unsigned int& height, unsigned int& colourDepth);
    00105
    00106         virtual unsigned int getWidth(void) const;
    00107         virtual unsigned int getHeight(void) const;
    00108         virtual unsigned int getColourDepth(void) const;
    00109
    00132         virtual void update(bool swapBuffers = true);
    00153         virtual void swapBuffers(bool waitForVSync = true)
    00154         { (void)waitForVSync; }
    00155
    00179         virtual Viewport* addViewport(Camera* cam, int ZOrder = 0, float left = 0.0f, float top = 0.0f ,
    00180             float width = 1.0f, float height = 1.0f);
    00181
    00183         virtual unsigned short getNumViewports(void) const;
    00184
    00186         virtual Viewport* getViewport(unsigned short index);
    00187
    00190         virtual void removeViewport(int ZOrder);
    00191
    00194         virtual void removeAllViewports(void);
    00195
    00214         virtual void getStatistics(float& lastFPS, float& avgFPS,
    00215             float& bestFPS, float& worstFPS) const;  // Access to stats
    00216
    00217         virtual const FrameStats& getStatistics(void) const;
    00218
    00221         virtual float getLastFPS() const;
    00222
    00225         virtual float getAverageFPS() const;
    00226
    00229         virtual float getBestFPS() const;
    00230
    00233         virtual float getWorstFPS() const;
    00234
    00237         virtual float getBestFrameTime() const;
    00238
    00241         virtual float getWorstFrameTime() const;
    00242
    00245         virtual void resetStatistics(void);
    00246
    00256         virtual void getCustomAttribute(const String& name, void* pData);
    00257
    00266         virtual void addListener(RenderTargetListener* listener);
    00268         virtual void removeListener(RenderTargetListener* listener);
    00270         virtual void removeAllListeners(void);
    00271
    00279         virtual void setPriority( uchar priority ) { mPriority = priority; }
    00281         virtual uchar getPriority() const { return mPriority; }
    00282
    00285         virtual bool isActive() const;
    00286
    00289         virtual void setActive( bool state );
    00290
    00302         virtual void setAutoUpdated(bool autoupdate);
    00306         virtual bool isAutoUpdated(void) const;
    00307
    00313         virtual void copyContentsToMemory(const PixelBox &dst, FrameBuffer buffer = FB_AUTO) = 0;
    00314
    00318         virtual PixelFormat suggestPixelFormat() const { return PF_BYTE_RGBA; }
    00319
    00321         void writeContentsToFile(const String& filename);
    00322
    00325         virtual String writeContentsToTimestampedFile(const String& filenamePrefix, const String& filenameSuffix);
    00326
    00327         virtual bool requiresTextureFlipping() const = 0;
    00328
    00330         virtual size_t getTriangleCount(void) const;
    00332         virtual size_t getBatchCount(void) const;
    00336         virtual void _notifyCameraRemoved(const Camera* cam);
    00337
    00344         virtual bool isPrimary(void) const;
    00345
    00353         virtual bool isHardwareGammaEnabled() const { return mHwGamma; }
    00354
    00357         virtual uint getFSAA() const { return mFSAA; }
    00358
    00361         virtual const String& getFSAAHint() const { return mFSAAHint; }
    00362
    00366         class Impl
    00367         {
    00368         protected:
    00369             ~Impl() { }
    00370         };
    00376         virtual Impl *_getImpl();
    00377
    00401         virtual void _beginUpdate();
    00402
    00412         virtual void _updateViewport(int zorder, bool updateStatistics = true);
    00413
    00422         virtual void _updateViewport(Viewport* viewport, bool updateStatistics = true);
    00423
    00432         virtual void _updateAutoUpdatedViewports(bool updateStatistics = true);
    00433
    00440         virtual void _endUpdate();
    00441
    00442     protected:
    00444         String mName;
    00446         uchar mPriority;
    00447
    00448         unsigned int mWidth;
    00449         unsigned int mHeight;
    00450         unsigned int mColourDepth;
    00451         bool mIsDepthBuffered;
    00452
    00453         // Stats
    00454         FrameStats mStats;
    00455
    00456         Timer* mTimer ;
    00457         unsigned long mLastSecond;
    00458         unsigned long mLastTime;
    00459         size_t mFrameCount;
    00460
    00461         bool mActive;
    00462         bool mAutoUpdate;
    00463         // Hardware sRGB gamma conversion done on write?
    00464         bool mHwGamma;
    00465         // FSAA performed?
    00466         uint mFSAA;
    00467         String mFSAAHint;
    00468
    00469         void updateStats(void);
    00470
    00471         typedef map<int, Viewport*>::type ViewportList;
    00473         ViewportList mViewportList;
    00474
    00475         typedef vector<RenderTargetListener*>::type RenderTargetListenerList;
    00476         RenderTargetListenerList mListeners;
    00477
    00478
    00480         virtual void firePreUpdate(void);
    00482         virtual void firePostUpdate(void);
    00484         virtual void fireViewportPreUpdate(Viewport* vp);
    00486         virtual void fireViewportPostUpdate(Viewport* vp);
    00488         virtual void fireViewportAdded(Viewport* vp);
    00490         virtual void fireViewportRemoved(Viewport* vp);
    00491
    00493         virtual void updateImpl();
    00494     };
    00498 } // Namespace
    00499
    00500 #endif

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun May 8 2011 20:28:08