src/BulletMultiThreaded/SpuNarrowPhaseCollisionTask/SpuGatheringCollisionTask.h

   1 /*
   2 Bullet Continuous Collision Detection and Physics Library
   3 Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
   4
   5 This software is provided 'as-is', without any express or implied warranty.
   6 In no event will the authors be held liable for any damages arising from the use of this software.
   7 Permission is granted to anyone to use this software for any purpose,
   8 including commercial applications, and to alter it and redistribute it freely,
   9 subject to the following restrictions:
  10
  11 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.
  12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
  13 3. This notice may not be removed or altered from any source distribution.
  14 */
  15
  16 #ifndef SPU_GATHERING_COLLISION_TASK_H
  17 #define SPU_GATHERING_COLLISION_TASK_H
  18
  19 #include "../PlatformDefinitions.h"
  20 //#define DEBUG_SPU_COLLISION_DETECTION 1
  21
  22
  23 ///Task Description for SPU collision detection
  24 struct SpuGatherAndProcessPairsTaskDesc
  25 {
  26         ppu_address_t   m_inPairPtr;//m_pairArrayPtr;
  27         //mutex variable
  28         uint32_t        m_someMutexVariableInMainMemory;
  29
  30         ppu_address_t   m_dispatcher;
  31
  32         uint32_t        numOnLastPage;
  33
  34         uint16_t numPages;
  35         uint16_t taskId;
  36         bool m_useEpa;
  37
  38         struct  CollisionTask_LocalStoreMemory* m_lsMemory;
  39 }
  40
  41 #if  defined(__CELLOS_LV2__) || defined(USE_LIBSPE2)
  42 __attribute__ ((aligned (128)))
  43 #endif
  44 ;
  45
  46
  47 void    processCollisionTask(void* userPtr, void* lsMemory);
  48
  49 void*   createCollisionLocalStoreMemory();
  50 void deleteCollisionLocalStoreMemory();
  51
  52 #if defined(USE_LIBSPE2) && defined(__SPU__)
  53 #include "../SpuLibspe2Support.h"
  54 #include <spu_intrinsics.h>
  55 #include <spu_mfcio.h>
  56 #include <SpuFakeDma.h>
  57
  58 //#define DEBUG_LIBSPE2_SPU_TASK
  59
  60
  61
  62 int main(unsigned long long speid, addr64 argp, addr64 envp)
  63 {
  64         printf("SPU: hello \n");
  65
  66         ATTRIBUTE_ALIGNED128(btSpuStatus status);
  67         ATTRIBUTE_ALIGNED16( SpuGatherAndProcessPairsTaskDesc taskDesc ) ;
  68         unsigned int received_message = Spu_Mailbox_Event_Nothing;
  69     bool shutdown = false;
  70
  71         cellDmaGet(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
  72         cellDmaWaitTagStatusAll(DMA_MASK(3));
  73
  74         status.m_status = Spu_Status_Free;
  75         status.m_lsMemory.p = createCollisionLocalStoreMemory();
  76
  77         cellDmaLargePut(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
  78         cellDmaWaitTagStatusAll(DMA_MASK(3));
  79
  80
  81         while ( btLikely( !shutdown ) )
  82         {
  83
  84                 received_message = spu_read_in_mbox();
  85
  86                 if( btLikely( received_message == Spu_Mailbox_Event_Task ))
  87                 {
  88 #ifdef DEBUG_LIBSPE2_SPU_TASK
  89                         printf("SPU: received Spu_Mailbox_Event_Task\n");
  90 #endif //DEBUG_LIBSPE2_SPU_TASK
  91
  92                         // refresh the status
  93                         cellDmaGet(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
  94                         cellDmaWaitTagStatusAll(DMA_MASK(3));
  95
  96                         btAssert(status.m_status==Spu_Status_Occupied);
  97
  98                         cellDmaGet(&taskDesc, status.m_taskDesc.p, sizeof(SpuGatherAndProcessPairsTaskDesc), DMA_TAG(3), 0, 0);
  99                         cellDmaWaitTagStatusAll(DMA_MASK(3));
 100 #ifdef DEBUG_LIBSPE2_SPU_TASK
 101                         printf("SPU:processCollisionTask\n");
 102 #endif //DEBUG_LIBSPE2_SPU_TASK
 103                         processCollisionTask((void*)&taskDesc, taskDesc.m_lsMemory);
 104
 105 #ifdef DEBUG_LIBSPE2_SPU_TASK
 106                         printf("SPU:finished processCollisionTask\n");
 107 #endif //DEBUG_LIBSPE2_SPU_TASK
 108                 }
 109                 else
 110                 {
 111 #ifdef DEBUG_LIBSPE2_SPU_TASK
 112                         printf("SPU: received ShutDown\n");
 113 #endif //DEBUG_LIBSPE2_SPU_TASK
 114                         if( btLikely( received_message == Spu_Mailbox_Event_Shutdown ) )
 115                         {
 116                                 shutdown = true;
 117                         }
 118                         else
 119                         {
 120                                 //printf("SPU - Sth. recieved\n");
 121                         }
 122                 }
 123
 124                 // set to status free and wait for next task
 125                 status.m_status = Spu_Status_Free;
 126                 cellDmaLargePut(&status, argp.ull, sizeof(btSpuStatus), DMA_TAG(3), 0, 0);
 127                 cellDmaWaitTagStatusAll(DMA_MASK(3));
 128
 129
 130         }
 131
 132         printf("SPU: shutdown\n");
 133         return 0;
 134 }
 135 #endif // USE_LIBSPE2
 136
 137
 138 #endif //SPU_GATHERING_COLLISION_TASK_H
 139
 140