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authorbgaldrikian <[email protected]>2020-11-10 20:53:31 -0800
committerbgaldrikian <[email protected]>2020-11-10 20:53:31 -0800
commitd61c455a4775f966b44cc47804b9e0f160d3d332 (patch)
tree7eff987598048409fe4ec9a1f733a87356f3aa21 /shared/filebuf/include/PsFileBuffer.h
parent* Updated license file (diff)
downloadblast-1.1.7_rc1.tar.xz
blast-1.1.7_rc1.zip
Merge request #17 PhysX4 compatibilityv1.1.7_rc1
Other changes for linux and UE4CrossCompileLinux, and all packaging to work
Diffstat (limited to 'shared/filebuf/include/PsFileBuffer.h')
-rw-r--r--shared/filebuf/include/PsFileBuffer.h250
1 files changed, 250 insertions, 0 deletions
diff --git a/shared/filebuf/include/PsFileBuffer.h b/shared/filebuf/include/PsFileBuffer.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) 2008-2019 NVIDIA Corporation. All rights reserved.
+
+#ifndef PSFILEBUFFER_PSFILEBUFFER_H
+#define PSFILEBUFFER_PSFILEBUFFER_H
+
+#include "filebuf/PxFileBuf.h"
+
+#include "Ps.h"
+#include "PsUserAllocated.h"
+#include <stdio.h>
+
+namespace physx
+{
+namespace general_PxIOStream2
+{
+ using namespace shdfnd;
+
+//Use this class if you want to use your own allocator
+class PxFileBufferBase : public PxFileBuf
+{
+public:
+ PxFileBufferBase(const char *fileName,OpenMode mode)
+ {
+ mOpenMode = mode;
+ mFph = NULL;
+ mFileLength = 0;
+ mSeekRead = 0;
+ mSeekWrite = 0;
+ mSeekCurrent = 0;
+ switch ( mode )
+ {
+ case OPEN_READ_ONLY:
+ mFph = fopen(fileName,"rb");
+ break;
+ case OPEN_WRITE_ONLY:
+ mFph = fopen(fileName,"wb");
+ break;
+ case OPEN_READ_WRITE_NEW:
+ mFph = fopen(fileName,"wb+");
+ break;
+ case OPEN_READ_WRITE_EXISTING:
+ mFph = fopen(fileName,"rb+");
+ break;
+ case OPEN_FILE_NOT_FOUND:
+ break;
+ }
+ if ( mFph )
+ {
+ fseek(mFph,0L,SEEK_END);
+ mFileLength = static_cast<uint32_t>(ftell(mFph));
+ fseek(mFph,0L,SEEK_SET);
+ }
+ else
+ {
+ mOpenMode = OPEN_FILE_NOT_FOUND;
+ }
+ }
+
+ virtual ~PxFileBufferBase()
+ {
+ close();
+ }
+
+ virtual void close()
+ {
+ if( mFph )
+ {
+ fclose(mFph);
+ mFph = 0;
+ }
+ }
+
+ virtual SeekType isSeekable(void) const
+ {
+ return mSeekType;
+ }
+
+ virtual uint32_t read(void* buffer, uint32_t size)
+ {
+ uint32_t ret = 0;
+ if ( mFph )
+ {
+ setSeekRead();
+ ret = static_cast<uint32_t>(::fread(buffer,1,size,mFph));
+ mSeekRead+=ret;
+ mSeekCurrent+=ret;
+ }
+ return ret;
+ }
+
+ virtual uint32_t peek(void* buffer, uint32_t size)
+ {
+ uint32_t ret = 0;
+ if ( mFph )
+ {
+ uint32_t loc = tellRead();
+ setSeekRead();
+ ret = static_cast<uint32_t>(::fread(buffer,1,size,mFph));
+ mSeekCurrent+=ret;
+ seekRead(loc);
+ }
+ return ret;
+ }
+
+ virtual uint32_t write(const void* buffer, uint32_t size)
+ {
+ uint32_t ret = 0;
+ if ( mFph )
+ {
+ setSeekWrite();
+ ret = static_cast<uint32_t>(::fwrite(buffer,1,size,mFph));
+ mSeekWrite+=ret;
+ mSeekCurrent+=ret;
+ if ( mSeekWrite > mFileLength )
+ {
+ mFileLength = mSeekWrite;
+ }
+ }
+ return ret;
+ }
+
+ virtual uint32_t tellRead(void) const
+ {
+ return mSeekRead;
+ }
+
+ virtual uint32_t tellWrite(void) const
+ {
+ return mSeekWrite;
+ }
+
+ virtual uint32_t seekRead(uint32_t loc)
+ {
+ mSeekRead = loc;
+ if ( mSeekRead > mFileLength )
+ {
+ mSeekRead = mFileLength;
+ }
+ return mSeekRead;
+ }
+
+ virtual uint32_t seekWrite(uint32_t loc)
+ {
+ mSeekWrite = loc;
+ if ( mSeekWrite > mFileLength )
+ {
+ mSeekWrite = mFileLength;
+ }
+ return mSeekWrite;
+ }
+
+ virtual void flush(void)
+ {
+ if ( mFph )
+ {
+ ::fflush(mFph);
+ }
+ }
+
+ virtual OpenMode getOpenMode(void) const
+ {
+ return mOpenMode;
+ }
+
+ virtual uint32_t getFileLength(void) const
+ {
+ return mFileLength;
+ }
+
+private:
+ // Moves the actual file pointer to the current read location
+ void setSeekRead(void)
+ {
+ if ( mSeekRead != mSeekCurrent && mFph )
+ {
+ if ( mSeekRead >= mFileLength )
+ {
+ fseek(mFph,0L,SEEK_END);
+ }
+ else
+ {
+ fseek(mFph,static_cast<long>(mSeekRead),SEEK_SET);
+ }
+ mSeekCurrent = mSeekRead = static_cast<uint32_t>(ftell(mFph));
+ }
+ }
+ // Moves the actual file pointer to the current write location
+ void setSeekWrite(void)
+ {
+ if ( mSeekWrite != mSeekCurrent && mFph )
+ {
+ if ( mSeekWrite >= mFileLength )
+ {
+ fseek(mFph,0L,SEEK_END);
+ }
+ else
+ {
+ fseek(mFph,static_cast<long>(mSeekWrite),SEEK_SET);
+ }
+ mSeekCurrent = mSeekWrite = static_cast<uint32_t>(ftell(mFph));
+ }
+ }
+
+
+ FILE *mFph;
+ uint32_t mSeekRead;
+ uint32_t mSeekWrite;
+ uint32_t mSeekCurrent;
+ uint32_t mFileLength;
+ SeekType mSeekType;
+ OpenMode mOpenMode;
+};
+
+//Use this class if you want to use PhysX memory allocator
+class PsFileBuffer: public PxFileBufferBase, public UserAllocated
+{
+public:
+ PsFileBuffer(const char *fileName,OpenMode mode): PxFileBufferBase(fileName, mode) {}
+};
+
+}
+using namespace general_PxIOStream2;
+}
+
+#endif // PSFILEBUFFER_PSFILEBUFFER_H