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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) 2008-2020 NVIDIA Corporation. All rights reserved.
// WARNING: before doing any changes to this file
// check comments at the head of BinSerializer.cpp
template<typename T> PX_INLINE Serializer::ErrorType PlatformInputStream::read(T &x, bool doAlign)
{
if( doAlign )
align(mTargetParams.getAlignment<T>());
if( mCurParams.getSize<T>() != mTargetParams.getSize<T>() )
{
PX_ALWAYS_ASSERT();
return Serializer::ERROR_INVALID_PLATFORM;
}
mStream.read(&x, sizeof(T));
if( mCurParams.endian != mTargetParams.endian )
SwapBytes((char *)&x, sizeof(T), GetDataType<T>::value);
return Serializer::ERROR_NONE;
}
//Deserialize array of primitive type (slow path)
template<typename T> PX_INLINE Serializer::ErrorType PlatformInputStream::readSimpleArraySlow(Handle &handle)
{
int32_t n;
handle.getArraySize(n);
align(mTargetParams.getAlignment<T>());
for(int32_t i = 0; i < n; ++i)
{
handle.set(i);
T val;
NV_ERR_CHECK_RETURN( read(val) );
handle.setParam<T>(val);
handle.popIndex();
}
return Serializer::ERROR_NONE;
}
template<typename T> PX_INLINE Serializer::ErrorType PlatformInputStream::readSimpleArray(Handle &handle)
{
if( mTargetParams.getSize<T>() == mCurParams.getSize<T>()
&& mTargetParams.getSize<T>() >= mTargetParams.getAlignment<T>()
&& mCurParams.getSize<T>() >= mCurParams.getAlignment<T>() ) //No gaps between array elements on both platforms
{
//Fast path
int32_t n;
handle.getArraySize(n);
align(mTargetParams.getAlignment<T>());
const int32_t elemSize = (int32_t)sizeof(T);
if( mStream.tellRead() + elemSize * n >= mStream.getFileLength() )
{
DEBUG_ALWAYS_ASSERT();
return Serializer::ERROR_INVALID_INTERNAL_PTR;
}
PX_ASSERT(elemSize * n >= 0);
char *p = (char *)mTraits->alloc(static_cast<uint32_t>(elemSize * n));
mStream.read(p, static_cast<uint32_t>(elemSize * n));
if( mCurParams.endian != mTargetParams.endian )
{
char *elem = p;
for(int32_t i = 0; i < n; ++i)
{
SwapBytes(elem, elemSize, GetDataType<T>::value);
elem += elemSize;
}
}
handle.setParamArray<T>((const T *)p, n);
mTraits->free(p);
}
else
{
return readSimpleArraySlow<T>(handle);
}
return Serializer::ERROR_NONE;
}
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