include/extensions/PxDefaultStreams.h

File members: include/extensions/PxDefaultStreams.h

// 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) 2008-2023 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.

#ifndef PX_DEFAULT_STREAMS_H
#define PX_DEFAULT_STREAMS_H
#include <stdio.h>
#include "common/PxPhysXCommonConfig.h"
#include "foundation/PxIO.h"
#include "foundation/PxFoundation.h"

typedef FILE* PxFileHandle;

#if !PX_DOXYGEN
namespace physx
{
#endif

class PxDefaultMemoryOutputStream: public PxOutputStream
{
public:
                        PxDefaultMemoryOutputStream(PxAllocatorCallback &allocator = *PxGetAllocatorCallback());
    virtual             ~PxDefaultMemoryOutputStream();

    virtual PxU32       write(const void* src, PxU32 count);

    virtual PxU32       getSize()   const   {   return mSize; }
    virtual PxU8*       getData()   const   {   return mData; }

private:
        PxDefaultMemoryOutputStream(const PxDefaultMemoryOutputStream&);
        PxDefaultMemoryOutputStream& operator=(const PxDefaultMemoryOutputStream&);

        PxAllocatorCallback&    mAllocator;
        PxU8*                   mData;
        PxU32                   mSize;
        PxU32                   mCapacity;
};

class PxDefaultMemoryInputData: public PxInputData
{
public:
                        PxDefaultMemoryInputData(PxU8* data, PxU32 length);

    virtual     PxU32   read(void* dest, PxU32 count);
    virtual     PxU32   getLength() const;
    virtual     void    seek(PxU32 pos);
    virtual     PxU32   tell() const;

private:
        PxU32       mSize;
        const PxU8* mData;
        PxU32       mPos;
};

class PxDefaultFileOutputStream: public PxOutputStream
{
public:
                        PxDefaultFileOutputStream(const char* name);
    virtual             ~PxDefaultFileOutputStream();

    virtual     PxU32   write(const void* src, PxU32 count);
    virtual     bool    isValid();
private:
        PxFileHandle    mFile;
};

class PxDefaultFileInputData: public PxInputData
{
public:
                        PxDefaultFileInputData(const char* name);
    virtual             ~PxDefaultFileInputData();

    virtual     PxU32   read(void* dest, PxU32 count);
    virtual     void    seek(PxU32 pos);
    virtual     PxU32   tell() const;
    virtual     PxU32   getLength() const;

                bool    isValid() const;
private:
        PxFileHandle    mFile;
        PxU32           mLength;
};

#if !PX_DOXYGEN
}
#endif

#endif