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Diffstat (limited to 'extern/bullet2/src/LinearMath/btQuickprof.cpp')
| -rw-r--r-- | extern/bullet2/src/LinearMath/btQuickprof.cpp | 302 |
1 files changed, 273 insertions, 29 deletions
diff --git a/extern/bullet2/src/LinearMath/btQuickprof.cpp b/extern/bullet2/src/LinearMath/btQuickprof.cpp index 37a0c8c3be5..e5b1196149b 100644 --- a/extern/bullet2/src/LinearMath/btQuickprof.cpp +++ b/extern/bullet2/src/LinearMath/btQuickprof.cpp @@ -1,38 +1,282 @@ /* -Copyright (c) 2006 Tyler Streeter -This software is provided 'as-is', without any express or implied warranty. -In no event will the authors be held liable for any damages arising from the use of this software. -Permission is granted to anyone to use this software for any purpose, -including commercial applications, and to alter it and redistribute it freely, -subject to the following restrictions: +/*************************************************************************************************** +** +** profile.cpp +** +** Real-Time Hierarchical Profiling for Game Programming Gems 3 +** +** by Greg Hjelstrom & Byon Garrabrant +** +***************************************************************************************************/ -1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. -2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. -3. This notice may not be removed or altered from any source distribution. +// Credits: The Clock class was inspired by the Timer classes in +// Ogre (www.ogre3d.org). -*/ +#include "LinearMath/btQuickprof.h" -// Please visit the project website (http://quickprof.sourceforge.net) -// for usage instructions. +#ifdef USE_BT_CLOCK -// Credits: The Clock class was inspired by the Timer classes in -// Ogre (www.ogre3d.org). +static btClock gProfileClock; -#include "LinearMath/btQuickprof.h" +inline void Profile_Get_Ticks(unsigned long int * ticks) +{ + *ticks = gProfileClock.getTimeMicroseconds(); +} + +inline float Profile_Get_Tick_Rate(void) +{ +// return 1000000.f; + return 1000.f; + +} + + + +/*************************************************************************************************** +** +** CProfileNode +** +***************************************************************************************************/ + +/*********************************************************************************************** + * INPUT: * + * name - pointer to a static string which is the name of this profile node * + * parent - parent pointer * + * * + * WARNINGS: * + * The name is assumed to be a static pointer, only the pointer is stored and compared for * + * efficiency reasons. * + *=============================================================================================*/ +CProfileNode::CProfileNode( const char * name, CProfileNode * parent ) : + Name( name ), + TotalCalls( 0 ), + TotalTime( 0 ), + StartTime( 0 ), + RecursionCounter( 0 ), + Parent( parent ), + Child( NULL ), + Sibling( NULL ) +{ + Reset(); +} + + +void CProfileNode::CleanupMemory() +{ + delete ( Child); + Child = NULL; + delete ( Sibling); + Sibling = NULL; +} + +CProfileNode::~CProfileNode( void ) +{ + delete ( Child); + delete ( Sibling); +} + + +/*********************************************************************************************** + * INPUT: * + * name - static string pointer to the name of the node we are searching for * + * * + * WARNINGS: * + * All profile names are assumed to be static strings so this function uses pointer compares * + * to find the named node. * + *=============================================================================================*/ +CProfileNode * CProfileNode::Get_Sub_Node( const char * name ) +{ + // Try to find this sub node + CProfileNode * child = Child; + while ( child ) { + if ( child->Name == name ) { + return child; + } + child = child->Sibling; + } + + // We didn't find it, so add it + + CProfileNode * node = new CProfileNode( name, this ); + node->Sibling = Child; + Child = node; + return node; +} + + +void CProfileNode::Reset( void ) +{ + TotalCalls = 0; + TotalTime = 0.0f; + gProfileClock.reset(); + + if ( Child ) { + Child->Reset(); + } + if ( Sibling ) { + Sibling->Reset(); + } +} + + +void CProfileNode::Call( void ) +{ + TotalCalls++; + if (RecursionCounter++ == 0) { + Profile_Get_Ticks(&StartTime); + } +} + + +bool CProfileNode::Return( void ) +{ + if ( --RecursionCounter == 0 && TotalCalls != 0 ) { + unsigned long int time; + Profile_Get_Ticks(&time); + time-=StartTime; + TotalTime += (float)time / Profile_Get_Tick_Rate(); + } + return ( RecursionCounter == 0 ); +} + + +/*************************************************************************************************** +** +** CProfileIterator +** +***************************************************************************************************/ +CProfileIterator::CProfileIterator( CProfileNode * start ) +{ + CurrentParent = start; + CurrentChild = CurrentParent->Get_Child(); +} + + +void CProfileIterator::First(void) +{ + CurrentChild = CurrentParent->Get_Child(); +} + + +void CProfileIterator::Next(void) +{ + CurrentChild = CurrentChild->Get_Sibling(); +} + + +bool CProfileIterator::Is_Done(void) +{ + return CurrentChild == NULL; +} + + +void CProfileIterator::Enter_Child( int index ) +{ + CurrentChild = CurrentParent->Get_Child(); + while ( (CurrentChild != NULL) && (index != 0) ) { + index--; + CurrentChild = CurrentChild->Get_Sibling(); + } + + if ( CurrentChild != NULL ) { + CurrentParent = CurrentChild; + CurrentChild = CurrentParent->Get_Child(); + } +} + + +void CProfileIterator::Enter_Parent( void ) +{ + if ( CurrentParent->Get_Parent() != NULL ) { + CurrentParent = CurrentParent->Get_Parent(); + } + CurrentChild = CurrentParent->Get_Child(); +} + + +/*************************************************************************************************** +** +** CProfileManager +** +***************************************************************************************************/ + +CProfileNode CProfileManager::Root( "Root", NULL ); +CProfileNode * CProfileManager::CurrentNode = &CProfileManager::Root; +int CProfileManager::FrameCounter = 0; +unsigned long int CProfileManager::ResetTime = 0; + + +/*********************************************************************************************** + * CProfileManager::Start_Profile -- Begin a named profile * + * * + * Steps one level deeper into the tree, if a child already exists with the specified name * + * then it accumulates the profiling; otherwise a new child node is added to the profile tree. * + * * + * INPUT: * + * name - name of this profiling record * + * * + * WARNINGS: * + * The string used is assumed to be a static string; pointer compares are used throughout * + * the profiling code for efficiency. * + *=============================================================================================*/ +void CProfileManager::Start_Profile( const char * name ) +{ + if (name != CurrentNode->Get_Name()) { + CurrentNode = CurrentNode->Get_Sub_Node( name ); + } + + CurrentNode->Call(); +} + + +/*********************************************************************************************** + * CProfileManager::Stop_Profile -- Stop timing and record the results. * + *=============================================================================================*/ +void CProfileManager::Stop_Profile( void ) +{ + // Return will indicate whether we should back up to our parent (we may + // be profiling a recursive function) + if (CurrentNode->Return()) { + CurrentNode = CurrentNode->Get_Parent(); + } +} + + +/*********************************************************************************************** + * CProfileManager::Reset -- Reset the contents of the profiling system * + * * + * This resets everything except for the tree structure. All of the timing data is reset. * + *=============================================================================================*/ +void CProfileManager::Reset( void ) +{ + Root.Reset(); + Root.Call(); + FrameCounter = 0; + Profile_Get_Ticks(&ResetTime); +} + + +/*********************************************************************************************** + * CProfileManager::Increment_Frame_Counter -- Increment the frame counter * + *=============================================================================================*/ +void CProfileManager::Increment_Frame_Counter( void ) +{ + FrameCounter++; +} + + +/*********************************************************************************************** + * CProfileManager::Get_Time_Since_Reset -- returns the elapsed time since last reset * + *=============================================================================================*/ +float CProfileManager::Get_Time_Since_Reset( void ) +{ + unsigned long int time; + Profile_Get_Ticks(&time); + time -= ResetTime; + return (float)time / Profile_Get_Tick_Rate(); +} + +#endif //USE_BT_CLOCK -#ifdef USE_QUICKPROF - -// Note: We must declare these private static variables again here to -// avoid link errors. -bool btProfiler::mEnabled = false; -btClock btProfiler::mClock; -unsigned long int btProfiler::mCurrentCycleStartMicroseconds = 0; -unsigned long int btProfiler::mLastCycleDurationMicroseconds = 0; -std::map<std::string, hidden::ProfileBlock*> btProfiler::mProfileBlocks; -std::ofstream btProfiler::mOutputFile; -bool btProfiler::mFirstFileOutput = true; -btProfiler::BlockTimingMethod btProfiler::mFileOutputMethod; -unsigned long int btProfiler::mCycleNumber = 0; -#endif //USE_QUICKPROF |