144 lines
3.8 KiB
C++
144 lines
3.8 KiB
C++
// This code contains NVIDIA Confidential Information and is disclosed to you
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// under a form of NVIDIA software license agreement provided separately to you.
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//
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// Notice
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// NVIDIA Corporation and its licensors retain all intellectual property and
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// proprietary rights in and to this software and related documentation and
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// any modifications thereto. Any use, reproduction, disclosure, or
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// distribution of this software and related documentation without an express
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// license agreement from NVIDIA Corporation is strictly prohibited.
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//
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// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
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// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
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// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
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// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// Information and code furnished is believed to be accurate and reliable.
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// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
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// information or for any infringement of patents or other rights of third parties that may
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// result from its use. No license is granted by implication or otherwise under any patent
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// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
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// This code supersedes and replaces all information previously supplied.
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// NVIDIA Corporation products are not authorized for use as critical
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// components in life support devices or systems without express written approval of
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// NVIDIA Corporation.
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//
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// Copyright (c) 2008-2013 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_IO_H
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#define PX_IO_H
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/** \addtogroup common
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@{
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*/
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#include "common/PxPhysXCommon.h"
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#ifndef PX_DOXYGEN
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namespace physx
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{
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#endif
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/**
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\brief Input stream class for I/O.
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The user needs to supply a PxInputStream implementation to a number of methods to allow the SDK to read data.
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*/
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class PxInputStream
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{
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public:
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/**
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\brief read from the stream. The number of bytes written may be less than the number requested.
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\param[in] dest the destination address to which the data will be written
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\param[in] count the number of bytes requested
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\return the number of bytes read from the stream.
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*/
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virtual PxU32 read(void* dest, PxU32 count) = 0;
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virtual ~PxInputStream() {}
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};
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/**
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\brief Input data class for I/O which provides random read access.
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The user needs to supply a PxInputData implementation to a number of methods to allow the SDK to read data.
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*/
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class PxInputData : public PxInputStream
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{
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public:
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/**
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\brief seek to the given offset from the start of the data.
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\return the number of bytes of data in the block.
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*/
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virtual PxU32 getLength() const = 0;
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/**
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\brief seek to the given offset from the start of the data.
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\param[in] offset the offset to seek to. If greater than the length of the data, this call is equivalent to seek(length);
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*/
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virtual void seek(PxU32 offset) = 0;
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/**
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\brief return the current offset from the start of the data
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\return the offset to seek to.
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*/
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virtual PxU32 tell() const = 0;
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virtual ~PxInputData() {}
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};
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/**
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\brief Output stream class for I/O.
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The user needs to supply a PxOutputStream implementation to a number of methods to allow the SDK to write data.
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*/
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class PxOutputStream
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{
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public:
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/**
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\brief write to the stream. The number of bytes written may be less than the number sent.
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\param[in] src the destination address from which the data will be written
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\param[in] count the number of bytes to be written
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\return the number of bytes written to the stream by this call.
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*/
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virtual PxU32 write(const void* src, PxU32 count) = 0;
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virtual ~PxOutputStream() {}
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};
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#ifndef PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif
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