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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) 2008-2018 NVIDIA Corporation. All rights reserved.
#ifndef PLATFORM_INPUT_STREAM_H_
#define PLATFORM_INPUT_STREAM_H_
// WARNING: before doing any changes to this file
// check comments at the head of BinSerializer.cpp
#include "PlatformStream.h"
#include "ApbDefinitions.h"
namespace NvParameterized
{
//ABI-aware input stream
class PlatformInputStream: public PlatformStream
{
physx::PxFileBuf &mStream;
physx::shdfnd::Array<uint32_t, Traits::Allocator> mPos;
uint32_t mStartPos; //This is necessary to handle NvParameterized streams starting in the middle of other files
PlatformInputStream(const PlatformInputStream &); //Don't
void operator =(const PlatformInputStream &); //Don't
public:
PlatformInputStream(physx::PxFileBuf &stream, const PlatformABI &targetParams, Traits *traits);
Serializer::ErrorType skipBytes(uint32_t nbytes);
Serializer::ErrorType pushPos(uint32_t newPos);
void popPos();
uint32_t getPos() const;
//Read string stored at given offset
//TODO: this could much faster if we loaded whole dictionary in the beginning
Serializer::ErrorType readString(uint32_t off, const char *&s);
//Deserialize header of NvParameterized object (see wiki for details)
Serializer::ErrorType readObjHeader(ObjHeader &hdr);
//Deserialize primitive type
template<typename T> PX_INLINE Serializer::ErrorType read(T &x, bool doAlign = true);
//Deserialize array of primitive type (slow path)
template<typename T> PX_INLINE Serializer::ErrorType readSimpleArraySlow(Handle &handle);
//Deserialize array of structs of primitive type
Serializer::ErrorType readSimpleStructArray(Handle &handle);
//Deserialize array of primitive type
template<typename T> PX_INLINE Serializer::ErrorType readSimpleArray(Handle &handle);
//Align current offset according to supplied alignment and padding
void beginStruct(uint32_t align_, uint32_t pad_);
//Align current offset according to supplied alignment (padding = alignment)
void beginStruct(uint32_t align_);
//Align current offset according to supplied DataType
void beginStruct(const Definition *pd);
//Insert tail padding
void closeStruct();
//beginStruct for DummyStringStruct
void beginString();
//closeStruct for DummyStringStruct
void closeString();
//beginStruct for arrays
void beginArray(const Definition *pd);
//closeStruct for arrays
void closeArray();
//Align offset to be n*border
void align(uint32_t border);
//Read value of pointer (offset from start of file)
Serializer::ErrorType readPtr(uint32_t &val);
};
#include "PlatformInputStream.inl"
}
#endif
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