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| author | git perforce import user <a@b> | 2016-10-25 12:29:14 -0600 |
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| committer | Sheikh Dawood Abdul Ajees <Sheikh Dawood Abdul Ajees> | 2016-10-25 18:56:37 -0500 |
| commit | 3dfe2108cfab31ba3ee5527e217d0d8e99a51162 (patch) | |
| tree | fa6485c169e50d7415a651bf838f5bcd0fd3bfbd /PhysX_3.4/Samples/SampleBase/InputEventBuffer.h | |
| download | physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.tar.xz physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.zip | |
Initial commit:
PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617
[CL 21300167]
Diffstat (limited to 'PhysX_3.4/Samples/SampleBase/InputEventBuffer.h')
| -rw-r--r-- | PhysX_3.4/Samples/SampleBase/InputEventBuffer.h | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/PhysX_3.4/Samples/SampleBase/InputEventBuffer.h b/PhysX_3.4/Samples/SampleBase/InputEventBuffer.h new file mode 100644 index 00000000..824cd64a --- /dev/null +++ b/PhysX_3.4/Samples/SampleBase/InputEventBuffer.h @@ -0,0 +1,228 @@ +// This code contains NVIDIA Confidential Information and is disclosed to you +// under a form of NVIDIA software license agreement provided separately to you. +// +// Notice +// NVIDIA Corporation and its licensors retain all intellectual property and +// proprietary rights in and to this software and related documentation and +// any modifications thereto. Any use, reproduction, disclosure, or +// distribution of this software and related documentation without an express +// license agreement from NVIDIA Corporation is strictly prohibited. +// +// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES +// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO +// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, +// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. +// +// Information and code furnished is believed to be accurate and reliable. +// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such +// information or for any infringement of patents or other rights of third parties that may +// result from its use. No license is granted by implication or otherwise under any patent +// or patent rights of NVIDIA Corporation. Details are subject to change without notice. +// This code supersedes and replaces all information previously supplied. +// NVIDIA Corporation products are not authorized for use as critical +// components in life support devices or systems without express written approval of +// NVIDIA Corporation. +// +// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved. +// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. +// Copyright (c) 2001-2004 NovodeX AG. All rights reserved. + +#ifndef INPUT_BUFFER_H +#define INPUT_BUFFER_H + +#include "SamplePreprocessor.h" +#include "SampleAllocator.h" +#include "SampleUserInput.h" +#include "foundation/PxAssert.h" +#include "PsIntrinsics.h" + +class PhysXSampleApplication; + +template<typename T, PxU32 SIZE> +class RingBuffer +{ +public: + RingBuffer() + : mReadCount(0) + , mWriteCount(0) + { + // SIZE has to be power of two +#if PX_VC + PX_COMPILE_TIME_ASSERT(SIZE > 0); + PX_COMPILE_TIME_ASSERT((SIZE&(SIZE-1)) == 0); +#else + PX_ASSERT(SIZE > 0); + PX_ASSERT((SIZE&(SIZE-1)) == 0); +#endif + } + + PX_FORCE_INLINE bool isEmpty() const { return mReadCount==mWriteCount; } + PX_FORCE_INLINE bool isFull() const { return isFull(mReadCount, mWriteCount); } + PX_FORCE_INLINE PxU32 size() const { return size(mReadCount, mWriteCount); } + PX_FORCE_INLINE PxU32 capacity() const { return SIZE; } + // clear is only save if called from reader thread! + PX_FORCE_INLINE void clear() { mReadCount=mWriteCount; } + PX_FORCE_INLINE const T& back() const { PX_ASSERT(!isEmpty()); return mRing[mReadCount&moduloMask]; } + PX_FORCE_INLINE T& front() { return mRing[mWriteCount&moduloMask]; } + PX_FORCE_INLINE void incFront(PxU32 inc) { PX_ASSERT(SIZE-size() >= inc); mWriteCount+=inc; } + PX_FORCE_INLINE void incBack(PxU32 inc) { PX_ASSERT(size() >= inc); mReadCount+=inc; } + + PX_FORCE_INLINE bool pushFront(const T& e) + { + if(!isFull()) + { + mRing[mWriteCount&moduloMask] = e; + Ps::memoryBarrier(); + mWriteCount++; + return true; + } + else + return false; + + } + + PX_FORCE_INLINE bool popBack(T& e) + { + if(!isEmpty()) + { + e = mRing[mReadCount&moduloMask]; + mReadCount++; + return true; + } + else + return false; + } + +private: + PX_FORCE_INLINE static PxU32 moduloDistance(PxI32 r, PxI32 w) { return PxU32((w-r)&moduloMask); } + PX_FORCE_INLINE static bool isFull(PxI32 r, PxI32 w) { return r!=w && moduloDistance(r,w)==0; } + PX_FORCE_INLINE static PxU32 size(PxI32 r, PxI32 w) { return isFull(r, w) ? SIZE : moduloDistance(r, w); } + +private: + static const PxU32 moduloMask = SIZE-1; + T mRing[SIZE]; + volatile PxI32 mReadCount; + volatile PxI32 mWriteCount; +}; + + +class InputEventBuffer: public SampleFramework::InputEventListener, public SampleAllocateable +{ +public: + + InputEventBuffer(PhysXSampleApplication& p); + virtual ~InputEventBuffer(); + + virtual void onKeyDownEx(SampleFramework::SampleUserInput::KeyCode keyCode, PxU32 wParam); + virtual void onAnalogInputEvent(const SampleFramework::InputEvent& , float val); + virtual void onDigitalInputEvent(const SampleFramework::InputEvent& , bool val); + virtual void onPointerInputEvent(const SampleFramework::InputEvent&, PxU32 x, PxU32 y, PxReal dx, PxReal dy, bool val); + void clear(); + void flush(); +private: + PX_FORCE_INLINE void checkResetLastInput() + { + if(mResetInputCacheReq!=mResetInputCacheAck) + { + mLastKeyDownEx = NULL; + mLastDigitalInput = NULL; + mLastAnalogInput = NULL; + mLastPointerInput = NULL; + mResetInputCacheAck++; + PX_ASSERT(mResetInputCacheReq==mResetInputCacheAck); + } + } + struct EventType + { + virtual ~EventType() {} + virtual void report(PhysXSampleApplication& app) const { } + }; + struct KeyDownEx: public EventType + { + virtual void report(PhysXSampleApplication& app) const; + + bool isEqual(SampleFramework::SampleUserInput::KeyCode _keyCode, PxU32 _wParam) + { + return (_keyCode == keyCode) && (_wParam == wParam); + } + + SampleFramework::SampleUserInput::KeyCode keyCode; + PxU32 wParam; + }; + struct AnalogInput: public EventType + { + virtual void report(PhysXSampleApplication& app) const; + + bool isEqual(SampleFramework::InputEvent _e, float _val) + { + return (_e.m_Id == e.m_Id) && (_e.m_Analog == e.m_Analog) && (_e.m_Sensitivity == e.m_Sensitivity) && (_val == val); + } + + SampleFramework::InputEvent e; + float val; + }; + struct DigitalInput: public EventType + { + virtual void report(PhysXSampleApplication& app) const; + + bool isEqual(SampleFramework::InputEvent _e, bool _val) + { + return (_e.m_Id == e.m_Id) && (_e.m_Analog == e.m_Analog) && (_e.m_Sensitivity == e.m_Sensitivity) && (_val == val); + } + + SampleFramework::InputEvent e; + bool val; + }; + struct PointerInput: public EventType + { + virtual void report(PhysXSampleApplication& app) const; + + bool isEqual(SampleFramework::InputEvent _e, PxU32 _x, PxU32 _y, PxReal _dx, PxReal _dy, bool _val) + { + return (_e.m_Id == e.m_Id) && (_e.m_Analog == e.m_Analog) && (_e.m_Sensitivity == e.m_Sensitivity) && + (_x == x) && (_y == y) && (_dx == dx) && (_dy == dy) && (_val == val); + } + + SampleFramework::InputEvent e; + PxU32 x; + PxU32 y; + PxReal dx; + PxReal dy; + bool val; + }; + + struct EventsUnion + { + template<class Event> PX_CUDA_CALLABLE PX_FORCE_INLINE Event& get() + { + return reinterpret_cast<Event&>(events); + } + template<class Event> PX_CUDA_CALLABLE PX_FORCE_INLINE const Event& get() const + { + return reinterpret_cast<const Event&>(events); + } + union + { + PxU8 eventType[sizeof(EventType)]; + PxU8 keyDownEx[sizeof(KeyDownEx)]; + PxU8 analogInput[sizeof(AnalogInput)]; + PxU8 digitalInput[sizeof(DigitalInput)]; + PxU8 pointerInput[sizeof(PointerInput)]; + } events; + }; + + static const PxU32 MAX_EVENTS = 64; + static const PxU32 MAX_MOUSE_EVENTS = 48; + static const PxU32 MAX_ANALOG_EVENTS = 48; + RingBuffer<EventsUnion, MAX_EVENTS> mRingBuffer; + volatile PxU32 mResetInputCacheReq; + volatile PxU32 mResetInputCacheAck; + KeyDownEx* mLastKeyDownEx; + DigitalInput* mLastDigitalInput; + AnalogInput* mLastAnalogInput; + PointerInput* mLastPointerInput; + PhysXSampleApplication& mApp; + bool mClearBuffer; +}; + +#endif |