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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.
#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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