/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org/ Copyright (c) 2000-2013 Torus Knot Software Ltd Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- */ /* Although the code is original, many of the ideas for the profiler were borrowed from "Real-Time In-Game Profiling" by Steve Rabin which can be found in Game Programming Gems 1. This code can easily be adapted to your own non-Ogre project. The only code that is Ogre-dependent is in the visualization/logging routines and the use of the Timer class. Enjoy! */ #ifndef __Profiler_H__ #define __Profiler_H__ #include "OgrePrerequisites.h" #include "OgreSingleton.h" #include "OgreString.h" #include "OgreHeaderPrefix.h" #if OGRE_PROFILING == 1 # define OgreProfile( a ) Ogre::Profile _OgreProfileInstance( (a) ) # define OgreProfileBegin( a ) Ogre::Profiler::getSingleton().beginProfile( (a) ) # define OgreProfileEnd( a ) Ogre::Profiler::getSingleton().endProfile( (a) ) # define OgreProfileGroup( a, g ) Ogre::Profile _OgreProfileInstance( (a), (g) ) # define OgreProfileBeginGroup( a, g ) Ogre::Profiler::getSingleton().beginProfile( (a), (g) ) # define OgreProfileEndGroup( a, g ) Ogre::Profiler::getSingleton().endProfile( (a), (g) ) # define OgreProfileBeginGPUEvent( g ) Ogre::Profiler::getSingleton().beginGPUEvent(g) # define OgreProfileEndGPUEvent( g ) Ogre::Profiler::getSingleton().endGPUEvent(g) # define OgreProfileMarkGPUEvent( e ) Ogre::Profiler::getSingleton().markGPUEvent(e) #else # define OgreProfile( a ) # define OgreProfileBegin( a ) # define OgreProfileEnd( a ) # define OgreProfileGroup( a, g ) # define OgreProfileBeginGroup( a, g ) # define OgreProfileEndGroup( a, g ) # define OgreProfileBeginGPUEvent( e ) # define OgreProfileEndGPUEvent( e ) # define OgreProfileMarkGPUEvent( e ) #endif namespace Ogre { /** \addtogroup Core * @{ */ /** \addtogroup General * @{ */ /** List of reserved profiling masks */ enum ProfileGroupMask { /// User default profile OGREPROF_USER_DEFAULT = 0x00000001, /// All in-built Ogre profiling will match this mask OGREPROF_ALL = 0xFF000000, /// General processing OGREPROF_GENERAL = 0x80000000, /// Culling OGREPROF_CULLING = 0x40000000, /// Rendering OGREPROF_RENDERING = 0x20000000 }; /** An individual profile that will be processed by the Profiler @remarks Use the macro OgreProfile(name) instead of instantiating this profile directly @remarks We use this Profile to allow scoping rules to signify the beginning and end of the profile. Use the Profiler singleton (through the macro OgreProfileBegin(name) and OgreProfileEnd(name)) directly if you want a profile to last outside of a scope (i.e. the main game loop). @author Amit Mathew (amitmathew (at) yahoo (dot) com) */ class _OgreExport Profile : public ProfilerAlloc { public: Profile(const String& profileName, uint32 groupID = (uint32)OGREPROF_USER_DEFAULT); ~Profile(); protected: /// The name of this profile String mName; /// The group ID uint32 mGroupID; }; /** Represents the total timing information of a profile since profiles can be called more than once each frame */ struct ProfileFrame { /// The total time this profile has taken this frame ulong frameTime; /// The number of times this profile was called this frame uint calls; /// The hierarchical level of this profile, 0 being the main loop uint hierarchicalLvl; }; /// Represents a history of each profile during the duration of the app struct ProfileHistory { /// The current percentage of frame time this profile has taken Real currentTimePercent; /// The current frame time this profile has taken in milliseconds Real currentTimeMillisecs; /// The maximum percentage of frame time this profile has taken Real maxTimePercent; /// The maximum frame time this profile has taken in milliseconds Real maxTimeMillisecs; /// The minimum percentage of frame time this profile has taken Real minTimePercent; /// The minimum frame time this profile has taken in milliseconds Real minTimeMillisecs; /// The number of times this profile has been called each frame uint numCallsThisFrame; /// The total percentage of frame time this profile has taken Real totalTimePercent; /// The total frame time this profile has taken in milliseconds Real totalTimeMillisecs; /// The total number of times this profile was called /// (used to calculate average) ulong totalCalls; /// The hierarchical level of this profile, 0 being the root profile uint hierarchicalLvl; }; /// Represents an individual profile call class ProfileInstance : public ProfilerAlloc { friend class Profiler; public: ProfileInstance(void); virtual ~ProfileInstance(void); typedef Ogre::map::type ProfileChildren; void logResults(); void reset(); inline bool watchForMax(void) { return history.currentTimePercent == history.maxTimePercent; } inline bool watchForMin(void) { return history.currentTimePercent == history.minTimePercent; } inline bool watchForLimit(Real limit, bool greaterThan = true) { if (greaterThan) return history.currentTimePercent > limit; else return history.currentTimePercent < limit; } bool watchForMax(const String& profileName); bool watchForMin(const String& profileName); bool watchForLimit(const String& profileName, Real limit, bool greaterThan = true); /// The name of the profile String name; /// The name of the parent, null if root ProfileInstance* parent; ProfileChildren children; ProfileFrame frame; ulong frameNumber; ProfileHistory history; /// The time this profile was started ulong currTime; /// Represents the total time of all child profiles to subtract /// from this profile ulong accum; /// The hierarchical level of this profile, 0 being the root profile uint hierarchicalLvl; }; /** ProfileSessionListener should be used to visualize profile results. Concrete impl. could be done using Overlay's but its not limited to them you can also create a custom listener which sends the profile informtaion over a network. */ class _OgreExport ProfileSessionListener { public: enum DisplayMode { /// Display % frame usage on the overlay DISPLAY_PERCENTAGE, /// Display milliseconds on the overlay DISPLAY_MILLISECONDS }; ProfileSessionListener() : mDisplayMode(DISPLAY_MILLISECONDS) {} virtual ~ProfileSessionListener() {} /// Create the internal resources virtual void initializeSession() = 0; /// All internal resources should be deleted here virtual void finializeSession() = 0; /** If the profiler disables this listener then it should hide its panels (if any exists) or stop sending data over the network */ virtual void changeEnableState(bool enabled) {}; /// Here we get the real profiling information which we can use virtual void displayResults(const ProfileInstance& instance, ulong maxTotalFrameTime) {}; /// Set the display mode for the overlay. void setDisplayMode(DisplayMode d) { mDisplayMode = d; } /// Get the display mode for the overlay. DisplayMode getDisplayMode() const { return mDisplayMode; } protected: /// How to display the overlay DisplayMode mDisplayMode; }; /** The profiler allows you to measure the performance of your code @remarks Do not create profiles directly from this unless you want a profile to last outside of its scope (i.e. the main game loop). For most cases, use the macro OgreProfile(name) and braces to limit the scope. You must enable the Profile before you can used it with setEnabled(true). If you want to disable profiling in Ogre, simply set the macro OGRE_PROFILING to 0. @author Amit Mathew (amitmathew (at) yahoo (dot) com) @todo resolve artificial cap on number of profiles displayed @todo fix display ordering of profiles not called every frame */ class _OgreExport Profiler : public Singleton, public ProfilerAlloc { public: Profiler(); ~Profiler(); /** Sets the timer for the profiler */ void setTimer(Timer* t); /** Retrieves the timer for the profiler */ Timer* getTimer(); /** Begins a profile @remarks Use the macro OgreProfileBegin(name) instead of calling this directly so that profiling can be ignored in the release version of your app. @remarks You only use the macro (or this) if you want a profile to last outside of its scope (i.e. the main game loop). If you use this function, make sure you use a corresponding OgreProfileEnd(name). Usually you would use the macro OgreProfile(name). This function will be ignored for a profile that has been disabled or if the profiler is disabled. @param profileName Must be unique and must not be an empty string @param groupID A profile group identifier, which can allow you to mask profiles */ void beginProfile(const String& profileName, uint32 groupID = (uint32)OGREPROF_USER_DEFAULT); /** Ends a profile @remarks Use the macro OgreProfileEnd(name) instead of calling this directly so that profiling can be ignored in the release version of your app. @remarks This function is usually not called directly unless you want a profile to last outside of its scope. In most cases, using the macro OgreProfile(name) which will call this function automatically when it goes out of scope. Make sure the name of this profile matches its corresponding beginProfile name. This function will be ignored for a profile that has been disabled or if the profiler is disabled. @param profileName Must be unique and must not be an empty string @param groupID A profile group identifier, which can allow you to mask profiles */ void endProfile(const String& profileName, uint32 groupID = (uint32)OGREPROF_USER_DEFAULT); /** Mark the beginning of a GPU event group @remarks Can be safely called in the middle of the profile. */ void beginGPUEvent(const String& event); /** Mark the end of a GPU event group @remarks Can be safely called in the middle of the profile. */ void endGPUEvent(const String& event); /** Mark a specific, ungrouped, GPU event @remarks Can be safely called in the middle of the profile. */ void markGPUEvent(const String& event); /** Sets whether this profiler is enabled. Only takes effect after the the frame has ended. @remarks When this is called the first time with the parameter true, it initializes the GUI for the Profiler */ void setEnabled(bool enabled); /** Gets whether this profiler is enabled */ bool getEnabled() const; /** Enables a previously disabled profile @remarks Can be safely called in the middle of the profile. */ void enableProfile(const String& profileName); /** Disables a profile @remarks Can be safely called in the middle of the profile. */ void disableProfile(const String& profileName); /** Set the mask which all profiles must pass to be enabled. */ void setProfileGroupMask(uint32 mask) { mProfileMask = mask; } /** Get the mask which all profiles must pass to be enabled. */ uint32 getProfileGroupMask() const { return mProfileMask; } /** Returns true if the specified profile reaches a new frame time maximum @remarks If this is called during a frame, it will be reading the results from the previous frame. Therefore, it is best to use this after the frame has ended. */ bool watchForMax(const String& profileName); /** Returns true if the specified profile reaches a new frame time minimum @remarks If this is called during a frame, it will be reading the results from the previous frame. Therefore, it is best to use this after the frame has ended. */ bool watchForMin(const String& profileName); /** Returns true if the specified profile goes over or under the given limit frame time @remarks If this is called during a frame, it will be reading the results from the previous frame. Therefore, it is best to use this after the frame has ended. @param limit A number between 0 and 1 representing the percentage of frame time @param greaterThan If true, this will return whether the limit is exceeded. Otherwise, it will return if the frame time has gone under this limit. */ bool watchForLimit(const String& profileName, Real limit, bool greaterThan = true); /** Outputs current profile statistics to the log */ void logResults(); /** Clears the profiler statistics */ void reset(); /** Sets the Profiler so the display of results are updated every n frames*/ void setUpdateDisplayFrequency(uint freq); /** Gets the frequency that the Profiler display is updated */ uint getUpdateDisplayFrequency() const; /** @remarks Register a ProfileSessionListener from the Profiler @param listener A valid listener derived class */ void addListener(ProfileSessionListener* listener); /** @remarks Unregister a ProfileSessionListener from the Profiler @param listener A valid listener derived class */ void removeListener(ProfileSessionListener* listener); /** Override standard Singleton retrieval. @remarks Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll. @par This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors. */ static Profiler& getSingleton(void); /** Override standard Singleton retrieval. @remarks Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll. @par This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors. */ static Profiler* getSingletonPtr(void); protected: friend class ProfileInstance; typedef vector::type TProfileSessionListener; TProfileSessionListener mListeners; /** Initializes the profiler's GUI elements */ void initialize(); void displayResults(); /** Processes frame stats for all of the mRoot's children */ void processFrameStats(void); /** Processes specific ProfileInstance and it's children recursively.*/ void processFrameStats(ProfileInstance* instance, Real& maxFrameTime); /** Handles a change of the profiler's enabled state*/ void changeEnableState(); // lol. Uses typedef; put's original container type in name. typedef set::type DisabledProfileMap; typedef ProfileInstance::ProfileChildren ProfileChildren; ProfileInstance* mCurrent; ProfileInstance* mLast; ProfileInstance mRoot; /// Holds the names of disabled profiles DisabledProfileMap mDisabledProfiles; /// Whether the GUI elements have been initialized bool mInitialized; /// The number of frames that must elapse before the current /// frame display is updated uint mUpdateDisplayFrequency; /// The number of elapsed frame, used with mUpdateDisplayFrequency uint mCurrentFrame; /// The timer used for profiling Timer* mTimer; /// The total time each frame takes ulong mTotalFrameTime; /// Whether this profiler is enabled bool mEnabled; /// Keeps track of the new enabled/disabled state that the user has requested /// which will be applied after the frame ends bool mNewEnableState; /// Mask to decide whether a type of profile is enabled or not uint32 mProfileMask; /// The max frame time recorded ulong mMaxTotalFrameTime; /// Rolling average of millisecs Real mAverageFrameTime; bool mResetExtents; }; // end class /** @} */ /** @} */ } // end namespace #include "OgreHeaderSuffix.h" #endif