added linux makefile

modules/oculus_sdk_linux/LibOVR/Src/Kernel/OVR_SysFile.cpp

@@ -0,0 +1,138 @@
+/**************************************************************************
+
+Filename    :   OVR_SysFile.cpp
+Content     :   File wrapper class implementation (Win32)
+
+Created     :   April 5, 1999
+Authors     :   Michael Antonov
+
+Copyright   :   Copyright 2014 Oculus VR, Inc. All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.1 (the "License"); 
+you may not use the Oculus VR Rift SDK except in compliance with the License, 
+which is provided at the time of installation or download, or which 
+otherwise accompanies this software in either electronic or hard copy form.
+
+You may obtain a copy of the License at
+
+http://www.oculusvr.com/licenses/LICENSE-3.1 
+
+Unless required by applicable law or agreed to in writing, the Oculus VR SDK 
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+**************************************************************************/
+
+#define  GFILE_CXX
+
+// Standard C library (Captain Obvious guarantees!)
+#include <stdio.h>
+
+#include "OVR_SysFile.h"
+#include "OVR_Log.h"
+
+namespace OVR {
+
+// This is - a dummy file that fails on all calls.
+
+class UnopenedFile : public File
+{
+public:
+    UnopenedFile()  { }
+    ~UnopenedFile() { }
+
+    virtual const char* GetFilePath()               { return 0; }
+
+    // ** File Information
+    virtual bool        IsValid()                   { return 0; }
+    virtual bool        IsWritable()                { return 0; }
+
+    // Return position / file size
+    virtual int         Tell()                      { return 0; }
+    virtual SInt64      LTell()                     { return 0; }
+    virtual int         GetLength()                 { return 0; }
+    virtual SInt64      LGetLength()                { return 0; }
+
+//  virtual bool        Stat(FileStats *pfs)        { return 0; }
+    virtual int         GetErrorCode()              { return Error_FileNotFound; }
+
+    // ** Stream implementation & I/O
+    virtual int         Write(const UByte *pbuffer, int numBytes)     { return -1; OVR_UNUSED2(pbuffer, numBytes); }
+    virtual int         Read(UByte *pbuffer, int numBytes)            { return -1; OVR_UNUSED2(pbuffer, numBytes); }
+    virtual int         SkipBytes(int numBytes)                       { return 0;  OVR_UNUSED(numBytes); }
+    virtual int         BytesAvailable()                              { return 0; }
+    virtual bool        Flush()                                       { return 0; }
+    virtual int         Seek(int offset, int origin)                  { return -1; OVR_UNUSED2(offset, origin); }
+    virtual SInt64      LSeek(SInt64 offset, int origin)              { return -1; OVR_UNUSED2(offset, origin); }
+    
+    virtual int         CopyFromStream(File *pstream, int byteSize)   { return -1; OVR_UNUSED2(pstream, byteSize); }
+    virtual bool        Close()                                       { return 0; }    
+};
+
+
+
+// ***** System File
+
+// System file is created to access objects on file system directly
+// This file can refer directly to path
+
+// ** Constructor
+SysFile::SysFile() : DelegatedFile(0)
+{
+    pFile = *new UnopenedFile;
+}
+
+Ptr<File> FileFILEOpen(const String& path, int flags, int mode);
+
+// Opens a file
+SysFile::SysFile(const String& path, int flags, int mode) : DelegatedFile(0)
+{
+    Open(path, flags, mode);
+}
+
+
+// ** Open & management
+// Will fail if file's already open
+bool SysFile::Open(const String& path, int flags, int mode)
+{
+    pFile = FileFILEOpen(path, flags, mode);
+    if ((!pFile) || (!pFile->IsValid()))
+    {
+        pFile = *new UnopenedFile;
+        OVR_DEBUG_LOG(("Failed to open file: %s", path.ToCStr()));
+        return 0;
+    }
+    //pFile = *OVR_NEW DelegatedFile(pFile); // MA Testing
+    if (flags & Open_Buffered)
+        pFile = *new BufferedFile(pFile);
+    return 1;
+}
+
+
+// ** Overrides
+
+int SysFile::GetErrorCode()
+{
+    return pFile ? pFile->GetErrorCode() : Error_FileNotFound;
+}
+
+
+// Overrides to provide re-open support
+bool SysFile::IsValid()
+{
+    return pFile && pFile->IsValid();
+}
+bool SysFile::Close()
+{
+    if (IsValid())
+    {
+        DelegatedFile::Close();
+        pFile = *new UnopenedFile;
+        return 1;
+    }
+    return 0;
+}
+
+} // OVR