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+// 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.
+
+#include "SampleRandomPrecomputed.h"
+#include "PhysXSample.h"
+#include "SampleAllocator.h"
+#include "PxTkStream.h"
+
+using namespace PxToolkit;
+
+#define WRITE_SEQUENCE 0
+
+PX_FORCE_INLINE PxF32 flip(const PxF32* v)
+{
+ const PxU8* b = (const PxU8*)v;
+ PxF32 f;
+ PxU8* bf = (PxU8*)&f;
+ bf[0] = b[3];
+ bf[1] = b[2];
+ bf[2] = b[1];
+ bf[3] = b[0];
+ return f;
+}
+
+SampleRandomPrecomputed::SampleRandomPrecomputed(PhysXSample& app)
+: mPrecomputedRandomSequence(NULL),
+ mPrecomputedRandomSequenceCount(0)
+{
+ mPrecomputedRandomSequence = (PxF32*)SAMPLE_ALLOC(sizeof(PxF32)*(PRECOMPUTED_RANDOM_SEQUENCE_SIZE+1));
+
+#if WRITE_SEQUENCE
+ char buffer[256];
+ const char* filename = getSampleOutputDirManager().getFilePath("SampleBaseRandomSequence", buffer, false);
+ const PxF32 denom = (1.0f / float(RAND_MAX));
+ for(PxU32 i=0;i<PRECOMPUTED_RANDOM_SEQUENCE_SIZE;i++)
+ {
+ mPrecomputedRandomSequence[i] = float(rand()) * denom;
+ }
+ mPrecomputedRandomSequence[PRECOMPUTED_RANDOM_SEQUENCE_SIZE]=1.0f;
+ PxDefaultFileOutputStream stream(filename);
+ stream.write(mPrecomputedRandomSequence,sizeof(PxF32)*(PRECOMPUTED_RANDOM_SEQUENCE_SIZE+1));
+
+#else
+ const char* filename = getSampleMediaFilename("SampleBaseRandomSequence");
+ PxDefaultFileInputData stream(filename);
+ if(!stream.isValid())
+ app.fatalError("SampleBaseRandomSequence file not found");
+ stream.read(mPrecomputedRandomSequence,sizeof(PxF32)*(PRECOMPUTED_RANDOM_SEQUENCE_SIZE+1));
+
+ const bool mismatch = (1.0f != mPrecomputedRandomSequence[PRECOMPUTED_RANDOM_SEQUENCE_SIZE]);
+ if(mismatch)
+ {
+ for(PxU32 i=0;i<PRECOMPUTED_RANDOM_SEQUENCE_SIZE;i++)
+ {
+ mPrecomputedRandomSequence[i]=flip(&mPrecomputedRandomSequence[i]);
+ }
+ }
+
+#endif
+}
+
+SampleRandomPrecomputed::~SampleRandomPrecomputed()
+{
+ SAMPLE_FREE(mPrecomputedRandomSequence);
+ mPrecomputedRandomSequenceCount=0;
+}