PxDefaultStreams.h

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#ifndef PX_PHYSICS_EXTENSIONS_DEFAULT_STREAMS_H
#define PX_PHYSICS_EXTENSIONS_DEFAULT_STREAMS_H

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

typedef FILE* PxFileHandle;

#if !PX_DOXYGEN
namespace physx
{
#endif

class PxDefaultMemoryOutputStream: public PxOutputStream
{
public:
                        PxDefaultMemoryOutputStream(PxAllocatorCallback &allocator = PxGetFoundation().getAllocatorCallback());
    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