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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2013 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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