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physx/include/extensions/PxDefaultStreams.h

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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) 2008-2021 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_PHYSICS_EXTENSIONS_DEFAULT_STREAMS_H
+#define PX_PHYSICS_EXTENSIONS_DEFAULT_STREAMS_H
+/** \addtogroup extensions
+  @{
+*/
+
+#include <stdio.h>
+#include "common/PxPhysXCommonConfig.h"
+#include "foundation/PxIO.h"
+#include "PxFoundation.h"
+
+typedef FILE* PxFileHandle;
+
+#if !PX_DOXYGEN
+namespace physx
+{
+#endif
+
+/** 
+\brief default implementation of a memory write stream
+
+@see PxOutputStream
+*/
+
+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;
+};
+
+/** 
+\brief default implementation of a memory read stream
+
+@see PxInputData
+*/
+	
+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;
+};
+
+
+
+/** 
+\brief default implementation of a file write stream
+
+@see PxOutputStream
+*/
+
+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;
+};
+
+
+/** 
+\brief default implementation of a file read stream
+
+@see PxInputData
+*/
+
+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
+