btThreadSupportInterface.h

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00001 /*
00002 Bullet Continuous Collision Detection and Physics Library
00003 Copyright (c) 2003-2007 Erwin Coumans  http://bulletphysics.com
00004 
00005 This software is provided 'as-is', without any express or implied warranty.
00006 In no event will the authors be held liable for any damages arising from the use of this software.
00007 Permission is granted to anyone to use this software for any purpose, 
00008 including commercial applications, and to alter it and redistribute it freely, 
00009 subject to the following restrictions:
00010 
00011 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.
00012 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
00013 3. This notice may not be removed or altered from any source distribution.
00014 */
00015 
00016 #ifndef BT_THREAD_SUPPORT_INTERFACE_H
00017 #define BT_THREAD_SUPPORT_INTERFACE_H
00018 
00019 
00020 #include <LinearMath/btScalar.h> //for ATTRIBUTE_ALIGNED16
00021 #include "PlatformDefinitions.h"
00022 #include "PpuAddressSpace.h"
00023 
00024 class btBarrier {
00025 public:
00026         btBarrier() {}
00027         virtual ~btBarrier() {}
00028 
00029         virtual void sync() = 0;
00030         virtual void setMaxCount(int n) = 0;
00031         virtual int  getMaxCount() = 0;
00032 };
00033 
00034 class btCriticalSection {
00035 public:
00036         btCriticalSection() {}
00037         virtual ~btCriticalSection() {}
00038 
00039         ATTRIBUTE_ALIGNED16(unsigned int mCommonBuff[32]);
00040 
00041         virtual unsigned int getSharedParam(int i) = 0;
00042         virtual void setSharedParam(int i,unsigned int p) = 0;
00043 
00044         virtual void lock() = 0;
00045         virtual void unlock() = 0;
00046 };
00047 
00048 
00049 class btThreadSupportInterface
00050 {
00051 public:
00052 
00053         virtual ~btThreadSupportInterface();
00054 
00056         virtual void sendRequest(uint32_t uiCommand, ppu_address_t uiArgument0, uint32_t uiArgument1) =0;
00057 
00059         virtual void waitForResponse(unsigned int *puiArgument0, unsigned int *puiArgument1) =0;
00060 
00061 
00064 
00066         virtual void startSPU() =0;
00067 
00069         virtual void stopSPU()=0;
00070 
00072         virtual void    setNumTasks(int numTasks)=0;
00073 
00074         virtual int             getNumTasks() const = 0;
00075 
00076         virtual btBarrier*      createBarrier() = 0;
00077 
00078         virtual btCriticalSection* createCriticalSection() = 0;
00079 
00080         virtual void deleteBarrier(btBarrier* barrier)=0;
00081 
00082     virtual void deleteCriticalSection(btCriticalSection* criticalSection)=0;
00083         
00084         virtual void*   getThreadLocalMemory(int taskId) { return 0; }
00085 
00086 };
00087 
00088 #endif //BT_THREAD_SUPPORT_INTERFACE_H
00089