mirror of
https://github.com/bulletphysics/bullet3
synced 2024-12-15 06:00:12 +00:00
ab8f16961e
Apply clang-format-all.sh using the _clang-format file through all the cpp/.h files. make sure not to apply it to certain serialization structures, since some parser expects the * as part of the name, instead of type. This commit contains no other changes aside from adding and applying clang-format-all.sh
445 lines
12 KiB
C++
445 lines
12 KiB
C++
#ifdef _WIN32
|
|
/*
|
|
Bullet Continuous Collision Detection and Physics Library
|
|
Copyright (c) 2003-2007 Erwin Coumans http://bulletphysics.com
|
|
|
|
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:
|
|
|
|
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.
|
|
*/
|
|
|
|
#include "b3Win32ThreadSupport.h"
|
|
|
|
#include <windows.h>
|
|
|
|
///The number of threads should be equal to the number of available cores
|
|
///@todo: each worker should be linked to a single core, using SetThreadIdealProcessor.
|
|
|
|
///b3Win32ThreadSupport helps to initialize/shutdown libspe2, start/stop SPU tasks and communication
|
|
///Setup and initialize SPU/CELL/Libspe2
|
|
b3Win32ThreadSupport::b3Win32ThreadSupport(const Win32ThreadConstructionInfo& threadConstructionInfo)
|
|
{
|
|
m_maxNumTasks = threadConstructionInfo.m_numThreads;
|
|
startThreads(threadConstructionInfo);
|
|
}
|
|
|
|
///cleanup/shutdown Libspe2
|
|
b3Win32ThreadSupport::~b3Win32ThreadSupport()
|
|
{
|
|
stopThreads();
|
|
}
|
|
|
|
#include <stdio.h>
|
|
|
|
DWORD WINAPI Thread_no_1(LPVOID lpParam)
|
|
{
|
|
b3Win32ThreadSupport::b3ThreadStatus* status = (b3Win32ThreadSupport::b3ThreadStatus*)lpParam;
|
|
|
|
while (1)
|
|
{
|
|
WaitForSingleObject(status->m_eventStartHandle, INFINITE);
|
|
|
|
void* userPtr = status->m_userPtr;
|
|
|
|
if (userPtr)
|
|
{
|
|
b3Assert(status->m_status);
|
|
status->m_userThreadFunc(userPtr, status->m_lsMemory);
|
|
status->m_status = 2;
|
|
SetEvent(status->m_eventCompletetHandle);
|
|
}
|
|
else
|
|
{
|
|
//exit Thread
|
|
status->m_status = 3;
|
|
printf("Thread with taskId %i with handle %p exiting\n", status->m_taskId, status->m_threadHandle);
|
|
SetEvent(status->m_eventCompletetHandle);
|
|
break;
|
|
}
|
|
}
|
|
|
|
printf("Thread TERMINATED\n");
|
|
return 0;
|
|
}
|
|
|
|
///send messages to SPUs
|
|
void b3Win32ThreadSupport::runTask(int uiCommand, void* uiArgument0, int taskId)
|
|
{
|
|
/// gMidphaseSPU.sendRequest(CMD_GATHER_AND_PROCESS_PAIRLIST, (void*) &taskDesc);
|
|
|
|
///we should spawn an SPU task here, and in 'waitForResponse' it should wait for response of the (one of) the first tasks that finished
|
|
|
|
switch (uiCommand)
|
|
{
|
|
case B3_THREAD_SCHEDULE_TASK:
|
|
{
|
|
//#define SINGLE_THREADED 1
|
|
#ifdef SINGLE_THREADED
|
|
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[0];
|
|
threadStatus.m_userPtr = (void*)uiArgument0;
|
|
threadStatus.m_userThreadFunc(threadStatus.m_userPtr, threadStatus.m_lsMemory);
|
|
HANDLE handle = 0;
|
|
#else
|
|
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[taskId];
|
|
b3Assert(taskId >= 0);
|
|
b3Assert(int(taskId) < m_activeThreadStatus.size());
|
|
|
|
threadStatus.m_commandId = uiCommand;
|
|
threadStatus.m_status = 1;
|
|
threadStatus.m_userPtr = (void*)uiArgument0;
|
|
|
|
///fire event to start new task
|
|
SetEvent(threadStatus.m_eventStartHandle);
|
|
|
|
#endif //CollisionTask_LocalStoreMemory
|
|
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
///not implemented
|
|
b3Assert(0);
|
|
}
|
|
};
|
|
}
|
|
|
|
///check for messages from SPUs
|
|
void b3Win32ThreadSupport::waitForResponse(int* puiArgument0, int* puiArgument1)
|
|
{
|
|
///We should wait for (one of) the first tasks to finish (or other SPU messages), and report its response
|
|
|
|
///A possible response can be 'yes, SPU handled it', or 'no, please do a PPU fallback'
|
|
|
|
b3Assert(m_activeThreadStatus.size());
|
|
|
|
int last = -1;
|
|
#ifndef SINGLE_THREADED
|
|
DWORD res = WaitForMultipleObjects(m_completeHandles.size(), &m_completeHandles[0], FALSE, INFINITE);
|
|
b3Assert(res != WAIT_FAILED);
|
|
last = res - WAIT_OBJECT_0;
|
|
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[last];
|
|
b3Assert(threadStatus.m_threadHandle);
|
|
b3Assert(threadStatus.m_eventCompletetHandle);
|
|
|
|
//WaitForSingleObject(threadStatus.m_eventCompletetHandle, INFINITE);
|
|
b3Assert(threadStatus.m_status > 1);
|
|
threadStatus.m_status = 0;
|
|
|
|
///need to find an active spu
|
|
b3Assert(last >= 0);
|
|
|
|
#else
|
|
last = 0;
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[last];
|
|
#endif //SINGLE_THREADED
|
|
|
|
*puiArgument0 = threadStatus.m_taskId;
|
|
*puiArgument1 = threadStatus.m_status;
|
|
}
|
|
|
|
///check for messages from SPUs
|
|
bool b3Win32ThreadSupport::isTaskCompleted(int* puiArgument0, int* puiArgument1, int timeOutInMilliseconds)
|
|
{
|
|
///We should wait for (one of) the first tasks to finish (or other SPU messages), and report its response
|
|
|
|
///A possible response can be 'yes, SPU handled it', or 'no, please do a PPU fallback'
|
|
|
|
b3Assert(m_activeThreadStatus.size());
|
|
|
|
int last = -1;
|
|
#ifndef SINGLE_THREADED
|
|
DWORD res = WaitForMultipleObjects(m_completeHandles.size(), &m_completeHandles[0], FALSE, timeOutInMilliseconds);
|
|
|
|
if ((res != STATUS_TIMEOUT) && (res != WAIT_FAILED))
|
|
{
|
|
b3Assert(res != WAIT_FAILED);
|
|
last = res - WAIT_OBJECT_0;
|
|
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[last];
|
|
b3Assert(threadStatus.m_threadHandle);
|
|
b3Assert(threadStatus.m_eventCompletetHandle);
|
|
|
|
//WaitForSingleObject(threadStatus.m_eventCompletetHandle, INFINITE);
|
|
b3Assert(threadStatus.m_status > 1);
|
|
threadStatus.m_status = 0;
|
|
|
|
///need to find an active spu
|
|
b3Assert(last >= 0);
|
|
|
|
#else
|
|
last = 0;
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[last];
|
|
#endif //SINGLE_THREADED
|
|
|
|
*puiArgument0 = threadStatus.m_taskId;
|
|
*puiArgument1 = threadStatus.m_status;
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void b3Win32ThreadSupport::startThreads(const Win32ThreadConstructionInfo& threadConstructionInfo)
|
|
{
|
|
static int uniqueId = 0;
|
|
uniqueId++;
|
|
m_activeThreadStatus.resize(threadConstructionInfo.m_numThreads);
|
|
m_completeHandles.resize(threadConstructionInfo.m_numThreads);
|
|
|
|
m_maxNumTasks = threadConstructionInfo.m_numThreads;
|
|
|
|
for (int i = 0; i < threadConstructionInfo.m_numThreads; i++)
|
|
{
|
|
printf("starting thread %d\n", i);
|
|
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[i];
|
|
|
|
LPSECURITY_ATTRIBUTES lpThreadAttributes = NULL;
|
|
SIZE_T dwStackSize = threadConstructionInfo.m_threadStackSize;
|
|
LPTHREAD_START_ROUTINE lpStartAddress = &Thread_no_1;
|
|
LPVOID lpParameter = &threadStatus;
|
|
DWORD dwCreationFlags = 0;
|
|
LPDWORD lpThreadId = 0;
|
|
|
|
threadStatus.m_userPtr = 0;
|
|
|
|
sprintf(threadStatus.m_eventStartHandleName, "es%.8s%d%d", threadConstructionInfo.m_uniqueName, uniqueId, i);
|
|
threadStatus.m_eventStartHandle = CreateEventA(0, false, false, threadStatus.m_eventStartHandleName);
|
|
|
|
sprintf(threadStatus.m_eventCompletetHandleName, "ec%.8s%d%d", threadConstructionInfo.m_uniqueName, uniqueId, i);
|
|
threadStatus.m_eventCompletetHandle = CreateEventA(0, false, false, threadStatus.m_eventCompletetHandleName);
|
|
|
|
m_completeHandles[i] = threadStatus.m_eventCompletetHandle;
|
|
|
|
HANDLE handle = CreateThread(lpThreadAttributes, dwStackSize, lpStartAddress, lpParameter, dwCreationFlags, lpThreadId);
|
|
switch (threadConstructionInfo.m_priority)
|
|
{
|
|
case 0:
|
|
{
|
|
SetThreadPriority(handle, THREAD_PRIORITY_HIGHEST);
|
|
break;
|
|
}
|
|
case 1:
|
|
{
|
|
SetThreadPriority(handle, THREAD_PRIORITY_TIME_CRITICAL);
|
|
break;
|
|
}
|
|
case 2:
|
|
{
|
|
SetThreadPriority(handle, THREAD_PRIORITY_BELOW_NORMAL);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
}
|
|
}
|
|
|
|
//SetThreadAffinityMask(handle, 1 << 1); // this is what it was doing originally, a complete disaster for threading performance!
|
|
//SetThreadAffinityMask(handle, 1 << i); // I'm guessing this was the intention, but is still bad for performance due to one of the threads
|
|
// sometimes unable to execute because it wants to be on the same processor as the main thread (my guess)
|
|
|
|
threadStatus.m_taskId = i;
|
|
threadStatus.m_commandId = 0;
|
|
threadStatus.m_status = 0;
|
|
threadStatus.m_threadHandle = handle;
|
|
threadStatus.m_lsMemory = threadConstructionInfo.m_lsMemoryFunc();
|
|
threadStatus.m_userThreadFunc = threadConstructionInfo.m_userThreadFunc;
|
|
threadStatus.m_lsMemoryReleaseFunc = threadConstructionInfo.m_lsMemoryReleaseFunc;
|
|
|
|
printf("started %s thread %d with threadHandle %p\n", threadConstructionInfo.m_uniqueName, i, handle);
|
|
}
|
|
}
|
|
|
|
void b3Win32ThreadSupport::startThreads()
|
|
{
|
|
}
|
|
|
|
///tell the task scheduler we are done with the SPU tasks
|
|
void b3Win32ThreadSupport::stopThreads()
|
|
{
|
|
int i;
|
|
for (i = 0; i < m_activeThreadStatus.size(); i++)
|
|
{
|
|
b3ThreadStatus& threadStatus = m_activeThreadStatus[i];
|
|
if (threadStatus.m_status > 0)
|
|
{
|
|
WaitForSingleObject(threadStatus.m_eventCompletetHandle, INFINITE);
|
|
}
|
|
|
|
if (threadStatus.m_lsMemoryReleaseFunc)
|
|
{
|
|
threadStatus.m_lsMemoryReleaseFunc(threadStatus.m_lsMemory);
|
|
}
|
|
|
|
threadStatus.m_userPtr = 0;
|
|
SetEvent(threadStatus.m_eventStartHandle);
|
|
WaitForSingleObject(threadStatus.m_eventCompletetHandle, INFINITE);
|
|
|
|
CloseHandle(threadStatus.m_eventCompletetHandle);
|
|
CloseHandle(threadStatus.m_eventStartHandle);
|
|
CloseHandle(threadStatus.m_threadHandle);
|
|
}
|
|
|
|
m_activeThreadStatus.clear();
|
|
m_completeHandles.clear();
|
|
}
|
|
|
|
class b3Win32Barrier : public b3Barrier
|
|
{
|
|
private:
|
|
CRITICAL_SECTION mExternalCriticalSection;
|
|
CRITICAL_SECTION mLocalCriticalSection;
|
|
HANDLE mRunEvent, mNotifyEvent;
|
|
int mCounter, mEnableCounter;
|
|
int mMaxCount;
|
|
|
|
public:
|
|
b3Win32Barrier()
|
|
{
|
|
mCounter = 0;
|
|
mMaxCount = 1;
|
|
mEnableCounter = 0;
|
|
InitializeCriticalSection(&mExternalCriticalSection);
|
|
InitializeCriticalSection(&mLocalCriticalSection);
|
|
mRunEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
mNotifyEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
}
|
|
|
|
virtual ~b3Win32Barrier()
|
|
{
|
|
DeleteCriticalSection(&mExternalCriticalSection);
|
|
DeleteCriticalSection(&mLocalCriticalSection);
|
|
CloseHandle(mRunEvent);
|
|
CloseHandle(mNotifyEvent);
|
|
}
|
|
|
|
void sync()
|
|
{
|
|
int eventId;
|
|
|
|
EnterCriticalSection(&mExternalCriticalSection);
|
|
|
|
//PFX_PRINTF("enter taskId %d count %d stage %d phase %d mEnableCounter %d\n",taskId,mCounter,debug&0xff,debug>>16,mEnableCounter);
|
|
|
|
if (mEnableCounter > 0)
|
|
{
|
|
ResetEvent(mNotifyEvent);
|
|
LeaveCriticalSection(&mExternalCriticalSection);
|
|
WaitForSingleObject(mNotifyEvent, INFINITE);
|
|
EnterCriticalSection(&mExternalCriticalSection);
|
|
}
|
|
|
|
eventId = mCounter;
|
|
mCounter++;
|
|
|
|
if (eventId == mMaxCount - 1)
|
|
{
|
|
SetEvent(mRunEvent);
|
|
|
|
mEnableCounter = mCounter - 1;
|
|
mCounter = 0;
|
|
}
|
|
else
|
|
{
|
|
ResetEvent(mRunEvent);
|
|
LeaveCriticalSection(&mExternalCriticalSection);
|
|
WaitForSingleObject(mRunEvent, INFINITE);
|
|
EnterCriticalSection(&mExternalCriticalSection);
|
|
mEnableCounter--;
|
|
}
|
|
|
|
if (mEnableCounter == 0)
|
|
{
|
|
SetEvent(mNotifyEvent);
|
|
}
|
|
|
|
//PFX_PRINTF("leave taskId %d count %d stage %d phase %d mEnableCounter %d\n",taskId,mCounter,debug&0xff,debug>>16,mEnableCounter);
|
|
|
|
LeaveCriticalSection(&mExternalCriticalSection);
|
|
}
|
|
|
|
virtual void setMaxCount(int n) { mMaxCount = n; }
|
|
virtual int getMaxCount() { return mMaxCount; }
|
|
};
|
|
|
|
class b3Win32CriticalSection : public b3CriticalSection
|
|
{
|
|
private:
|
|
CRITICAL_SECTION mCriticalSection;
|
|
|
|
public:
|
|
b3Win32CriticalSection()
|
|
{
|
|
InitializeCriticalSection(&mCriticalSection);
|
|
}
|
|
|
|
~b3Win32CriticalSection()
|
|
{
|
|
DeleteCriticalSection(&mCriticalSection);
|
|
}
|
|
|
|
unsigned int getSharedParam(int i)
|
|
{
|
|
b3Assert(i >= 0 && i < 31);
|
|
return mCommonBuff[i + 1];
|
|
}
|
|
|
|
void setSharedParam(int i, unsigned int p)
|
|
{
|
|
b3Assert(i >= 0 && i < 31);
|
|
mCommonBuff[i + 1] = p;
|
|
}
|
|
|
|
void lock()
|
|
{
|
|
EnterCriticalSection(&mCriticalSection);
|
|
mCommonBuff[0] = 1;
|
|
}
|
|
|
|
void unlock()
|
|
{
|
|
mCommonBuff[0] = 0;
|
|
LeaveCriticalSection(&mCriticalSection);
|
|
}
|
|
};
|
|
|
|
b3Barrier* b3Win32ThreadSupport::createBarrier()
|
|
{
|
|
unsigned char* mem = (unsigned char*)b3AlignedAlloc(sizeof(b3Win32Barrier), 16);
|
|
b3Win32Barrier* barrier = new (mem) b3Win32Barrier();
|
|
barrier->setMaxCount(getNumTasks());
|
|
return barrier;
|
|
}
|
|
|
|
b3CriticalSection* b3Win32ThreadSupport::createCriticalSection()
|
|
{
|
|
unsigned char* mem = (unsigned char*)b3AlignedAlloc(sizeof(b3Win32CriticalSection), 16);
|
|
b3Win32CriticalSection* cs = new (mem) b3Win32CriticalSection();
|
|
return cs;
|
|
}
|
|
|
|
void b3Win32ThreadSupport::deleteBarrier(b3Barrier* barrier)
|
|
{
|
|
barrier->~b3Barrier();
|
|
b3AlignedFree(barrier);
|
|
}
|
|
|
|
void b3Win32ThreadSupport::deleteCriticalSection(b3CriticalSection* criticalSection)
|
|
{
|
|
criticalSection->~b3CriticalSection();
|
|
b3AlignedFree(criticalSection);
|
|
}
|
|
|
|
#endif //_WIN32
|