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Diffstat (limited to 'extern/bullet2/BulletMultiThreaded/MiniCLTaskScheduler.h')
-rw-r--r--extern/bullet2/BulletMultiThreaded/MiniCLTaskScheduler.h194
1 files changed, 194 insertions, 0 deletions
diff --git a/extern/bullet2/BulletMultiThreaded/MiniCLTaskScheduler.h b/extern/bullet2/BulletMultiThreaded/MiniCLTaskScheduler.h
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+/*
+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.
+*/
+
+
+
+#ifndef MINICL_TASK_SCHEDULER_H
+#define MINICL_TASK_SCHEDULER_H
+
+#include <assert.h>
+
+
+#include "BulletMultiThreaded/PlatformDefinitions.h"
+
+#include <stdlib.h>
+
+#include "LinearMath/btAlignedObjectArray.h"
+
+
+#include "MiniCLTask/MiniCLTask.h"
+
+//just add your commands here, try to keep them globally unique for debugging purposes
+#define CMD_SAMPLE_TASK_COMMAND 10
+
+struct MiniCLKernel;
+
+/// MiniCLTaskScheduler handles SPU processing of collision pairs.
+/// When PPU issues a task, it will look for completed task buffers
+/// PPU will do postprocessing, dependent on workunit output (not likely)
+class MiniCLTaskScheduler
+{
+ // track task buffers that are being used, and total busy tasks
+ btAlignedObjectArray<bool> m_taskBusy;
+ btAlignedObjectArray<MiniCLTaskDesc> m_spuSampleTaskDesc;
+
+
+ btAlignedObjectArray<const MiniCLKernel*> m_kernels;
+
+
+ int m_numBusyTasks;
+
+ // the current task and the current entry to insert a new work unit
+ int m_currentTask;
+
+ bool m_initialized;
+
+ void postProcess(int taskId, int outputSize);
+
+ class btThreadSupportInterface* m_threadInterface;
+
+ int m_maxNumOutstandingTasks;
+
+
+
+public:
+ MiniCLTaskScheduler(btThreadSupportInterface* threadInterface, int maxNumOutstandingTasks);
+
+ ~MiniCLTaskScheduler();
+
+ ///call initialize in the beginning of the frame, before addCollisionPairToTask
+ void initialize();
+
+ void issueTask(int firstWorkUnit, int lastWorkUnit, MiniCLKernel* kernel);
+
+ ///call flush to submit potential outstanding work to SPUs and wait for all involved SPUs to be finished
+ void flush();
+
+ class btThreadSupportInterface* getThreadSupportInterface()
+ {
+ return m_threadInterface;
+ }
+
+ int findProgramCommandIdByName(const char* programName) const;
+
+ int getMaxNumOutstandingTasks() const
+ {
+ return m_maxNumOutstandingTasks;
+ }
+
+ void registerKernel(MiniCLKernel* kernel)
+ {
+ m_kernels.push_back(kernel);
+ }
+};
+
+typedef void (*kernelLauncherCB)(MiniCLTaskDesc* taskDesc, int guid);
+
+struct MiniCLKernel
+{
+ MiniCLTaskScheduler* m_scheduler;
+
+// int m_kernelProgramCommandId;
+
+ char m_name[MINI_CL_MAX_KERNEL_NAME];
+ unsigned int m_numArgs;
+ kernelLauncherCB m_launcher;
+ void* m_pCode;
+ void updateLauncher();
+ MiniCLKernel* registerSelf();
+
+ void* m_argData[MINI_CL_MAX_ARG];
+ int m_argSizes[MINI_CL_MAX_ARG];
+};
+
+
+#if defined(USE_LIBSPE2) && defined(__SPU__)
+////////////////////MAIN/////////////////////////////
+#include "../SpuLibspe2Support.h"
+#include <spu_intrinsics.h>
+#include <spu_mfcio.h>
+#include <SpuFakeDma.h>
+
+void * SamplelsMemoryFunc();
+void SampleThreadFunc(void* userPtr,void* lsMemory);
+
+//#define DEBUG_LIBSPE2_MAINLOOP
+
+int main(unsigned long long speid, addr64 argp, addr64 envp)
+{
+ printf("SPU is up \n");
+
+ ATTRIBUTE_ALIGNED128(btSpuStatus status);
+ ATTRIBUTE_ALIGNED16( SpuSampleTaskDesc taskDesc ) ;
+ unsigned int received_message = Spu_Mailbox_Event_Nothing;
+ bool shutdown = false;
+
+ cellDmaGet(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
+ cellDmaWaitTagStatusAll(DMA_MASK(3));
+
+ status.m_status = Spu_Status_Free;
+ status.m_lsMemory.p = SamplelsMemoryFunc();
+
+ cellDmaLargePut(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
+ cellDmaWaitTagStatusAll(DMA_MASK(3));
+
+
+ while (!shutdown)
+ {
+ received_message = spu_read_in_mbox();
+
+
+
+ switch(received_message)
+ {
+ case Spu_Mailbox_Event_Shutdown:
+ shutdown = true;
+ break;
+ case Spu_Mailbox_Event_Task:
+ // refresh the status
+#ifdef DEBUG_LIBSPE2_MAINLOOP
+ printf("SPU recieved Task \n");
+#endif //DEBUG_LIBSPE2_MAINLOOP
+ cellDmaGet(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
+ cellDmaWaitTagStatusAll(DMA_MASK(3));
+
+ btAssert(status.m_status==Spu_Status_Occupied);
+
+ cellDmaGet(&taskDesc, status.m_taskDesc.p, sizeof(SpuSampleTaskDesc), DMA_TAG(3), 0, 0);
+ cellDmaWaitTagStatusAll(DMA_MASK(3));
+
+ SampleThreadFunc((void*)&taskDesc, reinterpret_cast<void*> (taskDesc.m_mainMemoryPtr) );
+ break;
+ case Spu_Mailbox_Event_Nothing:
+ default:
+ break;
+ }
+
+ // set to status free and wait for next task
+ status.m_status = Spu_Status_Free;
+ cellDmaLargePut(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
+ cellDmaWaitTagStatusAll(DMA_MASK(3));
+
+
+ }
+ return 0;
+}
+//////////////////////////////////////////////////////
+#endif
+
+
+
+#endif // MINICL_TASK_SCHEDULER_H
+