SpuGatheringCollisionTask.h

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/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/

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 SPU_GATHERING_COLLISION_TASK_H
#define SPU_GATHERING_COLLISION_TASK_H

#include "../PlatformDefinitions.h"
//#define DEBUG_SPU_COLLISION_DETECTION 1


struct SpuGatherAndProcessPairsTaskDesc 
{
        ppu_address_t   m_inPairPtr;//m_pairArrayPtr;
        //mutex variable
        uint32_t        m_someMutexVariableInMainMemory;

        ppu_address_t   m_dispatcher;

        uint32_t        numOnLastPage;

        uint16_t numPages;
        uint16_t taskId;
        bool m_useEpa;

        struct  CollisionTask_LocalStoreMemory* m_lsMemory; 
}

#if  defined(__CELLOS_LV2__) || defined(USE_LIBSPE2)
__attribute__ ((aligned (128)))
#endif
;


void    processCollisionTask(void* userPtr, void* lsMemory);

void*   createCollisionLocalStoreMemory();
void deleteCollisionLocalStoreMemory();

#if defined(USE_LIBSPE2) && defined(__SPU__)
#include "../SpuLibspe2Support.h"
#include <spu_intrinsics.h>
#include <spu_mfcio.h>
#include <SpuFakeDma.h>

//#define DEBUG_LIBSPE2_SPU_TASK



int main(unsigned long long speid, addr64 argp, addr64 envp)
{
        printf("SPU: hello \n");
        
        ATTRIBUTE_ALIGNED128(btSpuStatus status);
        ATTRIBUTE_ALIGNED16( SpuGatherAndProcessPairsTaskDesc 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 = createCollisionLocalStoreMemory();

        cellDmaLargePut(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
        cellDmaWaitTagStatusAll(DMA_MASK(3));
        
        
        while ( btLikely( !shutdown ) )
        {
                
                received_message = spu_read_in_mbox();
                
                if( btLikely( received_message == Spu_Mailbox_Event_Task ))
                {
#ifdef DEBUG_LIBSPE2_SPU_TASK
                        printf("SPU: received Spu_Mailbox_Event_Task\n");
#endif //DEBUG_LIBSPE2_SPU_TASK

                        // refresh the status
                        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(SpuGatherAndProcessPairsTaskDesc), DMA_TAG(3), 0, 0);
                        cellDmaWaitTagStatusAll(DMA_MASK(3));
#ifdef DEBUG_LIBSPE2_SPU_TASK           
                        printf("SPU:processCollisionTask\n");   
#endif //DEBUG_LIBSPE2_SPU_TASK
                        processCollisionTask((void*)&taskDesc, taskDesc.m_lsMemory);
                        
#ifdef DEBUG_LIBSPE2_SPU_TASK
                        printf("SPU:finished processCollisionTask\n");
#endif //DEBUG_LIBSPE2_SPU_TASK
                }
                else
                {
#ifdef DEBUG_LIBSPE2_SPU_TASK
                        printf("SPU: received ShutDown\n");
#endif //DEBUG_LIBSPE2_SPU_TASK
                        if( btLikely( received_message == Spu_Mailbox_Event_Shutdown ) )
                        {
                                shutdown = true;
                        }
                        else
                        {
                                //printf("SPU - Sth. recieved\n");
                        }
                }

                // 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));           
                                
                
        }

        printf("SPU: shutdown\n");
        return 0;
}
#endif // USE_LIBSPE2


#endif //SPU_GATHERING_COLLISION_TASK_H