Add OculusSDK 0.3.2 Linux Source Code w/o Samples, docs or binaries (libs or tools)

1 files changed, 595 insertions, 0 deletions

diff --git a/LibOVR/Src/Kernel/OVR_FileFILE.cpp b/LibOVR/Src/Kernel/OVR_FileFILE.cpp
new file mode 100644
index 0000000..8478086
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+++ b/LibOVR/Src/Kernel/OVR_FileFILE.cpp
@@ -0,0 +1,595 @@
+/**************************************************************************
+
+Filename    :   OVR_FileFILE.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
+
+#include "OVR_Types.h"
+#include "OVR_Log.h"
+
+// Standard C library (Captain Obvious guarantees!)
+#include <stdio.h>
+#ifndef OVR_OS_WINCE
+#include <sys/stat.h>
+#endif
+
+#include "OVR_SysFile.h"
+
+#ifndef OVR_OS_WINCE
+#include <errno.h>
+#endif
+
+namespace OVR {
+
+// ***** File interface
+
+// ***** FILEFile - C streams file
+
+static int SFerror ()
+{
+    if (errno == ENOENT)
+        return FileConstants::Error_FileNotFound;
+    else if (errno == EACCES || errno == EPERM)
+        return FileConstants::Error_Access;
+    else if (errno == ENOSPC)
+        return FileConstants::Error_DiskFull;
+    else
+        return FileConstants::Error_IOError;
+};
+
+#ifdef OVR_OS_WIN32
+#include "windows.h"
+// A simple helper class to disable/enable system error mode, if necessary
+// Disabling happens conditionally only if a drive name is involved
+class SysErrorModeDisabler
+{
+    BOOL    Disabled;
+    UINT    OldMode;
+public:
+    SysErrorModeDisabler(const char* pfileName)
+    {
+        if (pfileName && (pfileName[0]!=0) && pfileName[1]==':')
+        {
+            Disabled = 1;
+            OldMode = ::SetErrorMode(SEM_FAILCRITICALERRORS);
+        }
+        else
+            Disabled = 0;
+    }
+
+    ~SysErrorModeDisabler()
+    {
+        if (Disabled) ::SetErrorMode(OldMode);
+    }
+};
+#else
+class SysErrorModeDisabler
+{
+public:
+    SysErrorModeDisabler(const char* pfileName) { OVR_UNUSED(pfileName); }
+};
+#endif // OVR_OS_WIN32
+
+
+// This macro enables verification of I/O results after seeks against a pre-loaded
+// full file buffer copy. This is generally not necessary, but can been used to debug
+// memory corruptions; we've seen this fail due to EAX2/DirectSound corrupting memory
+// under FMOD with XP64 (32-bit) and Realtek HA Audio driver.
+//#define GFILE_VERIFY_SEEK_ERRORS
+
+
+// This is the simplest possible file implementation, it wraps around the descriptor
+// This file is delegated to by SysFile.
+
+class FILEFile : public File
+{
+protected:
+
+    // Allocated filename
+    String      FileName;
+
+    // File handle & open mode
+    bool        Opened;
+    FILE*       fs;
+    int         OpenFlags;
+    // Error code for last request
+    int         ErrorCode;
+
+    int         LastOp;
+
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+    UByte*      pFileTestBuffer;
+    unsigned    FileTestLength;
+    unsigned    TestPos; // File pointer position during tests.
+#endif
+
+public:
+
+    FILEFile()
+    {
+        Opened = 0; FileName = "";
+
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+        pFileTestBuffer =0;
+        FileTestLength  =0;
+        TestPos         =0;
+#endif
+    }
+    // Initialize file by opening it
+    FILEFile(const String& fileName, int flags, int Mode);
+    // The 'pfileName' should be encoded as UTF-8 to support international file names.
+    FILEFile(const char* pfileName, int flags, int Mode);
+
+    ~FILEFile()
+    {
+        if (Opened)
+            Close();
+    }
+
+    virtual const char* GetFilePath();
+
+    // ** File Information
+    virtual bool        IsValid();
+    virtual bool        IsWritable();
+
+    // Return position / file size
+    virtual int         Tell();
+    virtual SInt64      LTell();
+    virtual int         GetLength();
+    virtual SInt64      LGetLength();
+
+//  virtual bool        Stat(FileStats *pfs);
+    virtual int         GetErrorCode();
+
+    // ** Stream implementation & I/O
+    virtual int         Write(const UByte *pbuffer, int numBytes);
+    virtual int         Read(UByte *pbuffer, int numBytes);
+    virtual int         SkipBytes(int numBytes);
+    virtual int         BytesAvailable();
+    virtual bool        Flush();
+    virtual int         Seek(int offset, int origin);
+    virtual SInt64      LSeek(SInt64 offset, int origin);
+    
+    virtual int         CopyFromStream(File *pStream, int byteSize);
+    virtual bool        Close();    
+private:
+    void                init();
+};
+
+
+// Initialize file by opening it
+FILEFile::FILEFile(const String& fileName, int flags, int mode)
+  : FileName(fileName), OpenFlags(flags)
+{
+    OVR_UNUSED(mode);
+    init();
+}
+
+// The 'pfileName' should be encoded as UTF-8 to support international file names.
+FILEFile::FILEFile(const char* pfileName, int flags, int mode)
+  : FileName(pfileName), OpenFlags(flags)
+{
+    OVR_UNUSED(mode);
+    init();
+}
+
+void FILEFile::init()
+{
+    // Open mode for file's open
+    const char *omode = "rb";
+
+    if (OpenFlags & Open_Truncate)
+    {
+        if (OpenFlags & Open_Read)
+            omode = "w+b";
+        else
+            omode = "wb";
+    }
+    else if (OpenFlags & Open_Create)
+    {
+        if (OpenFlags & Open_Read)
+            omode = "a+b";
+        else
+            omode = "ab";
+    }
+    else if (OpenFlags & Open_Write)
+        omode = "r+b";
+
+#ifdef OVR_OS_WIN32
+    SysErrorModeDisabler disabler(FileName.ToCStr());
+#endif
+
+#if defined(OVR_CC_MSVC) && (OVR_CC_MSVC >= 1400)
+    wchar_t womode[16];
+    wchar_t *pwFileName = (wchar_t*)OVR_ALLOC((UTF8Util::GetLength(FileName.ToCStr())+1) * sizeof(wchar_t));
+    UTF8Util::DecodeString(pwFileName, FileName.ToCStr());
+    OVR_ASSERT(strlen(omode) < sizeof(womode)/sizeof(womode[0]));
+    UTF8Util::DecodeString(womode, omode);
+    _wfopen_s(&fs, pwFileName, womode);
+    OVR_FREE(pwFileName);
+#else
+    fs = fopen(FileName.ToCStr(), omode);
+#endif
+    if (fs)
+        rewind (fs);
+    Opened = (fs != NULL);
+    // Set error code
+    if (!Opened)
+        ErrorCode = SFerror();
+    else
+    {
+        // If we are testing file seek correctness, pre-load the entire file so
+        // that we can do comparison tests later.
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS        
+        TestPos         = 0;
+        fseek(fs, 0, SEEK_END);
+        FileTestLength  = ftell(fs);
+        fseek(fs, 0, SEEK_SET);
+        pFileTestBuffer = (UByte*)OVR_ALLOC(FileTestLength);
+        if (pFileTestBuffer)
+        {
+            OVR_ASSERT(FileTestLength == (unsigned)Read(pFileTestBuffer, FileTestLength));
+            Seek(0, Seek_Set);
+        }        
+#endif
+
+        ErrorCode = 0;
+    }
+    LastOp = 0;
+}
+
+
+const char* FILEFile::GetFilePath()
+{
+    return FileName.ToCStr();
+}
+
+
+// ** File Information
+bool    FILEFile::IsValid()
+{
+    return Opened;
+}
+bool    FILEFile::IsWritable()
+{
+    return IsValid() && (OpenFlags&Open_Write);
+}
+/*
+bool    FILEFile::IsRecoverable()
+{
+    return IsValid() && ((OpenFlags&OVR_FO_SAFETRUNC) == OVR_FO_SAFETRUNC);
+}
+*/
+
+// Return position / file size
+int     FILEFile::Tell()
+{
+    int pos = (int)ftell (fs);
+    if (pos < 0)
+        ErrorCode = SFerror();
+    return pos;
+}
+
+SInt64  FILEFile::LTell()
+{
+    SInt64 pos = ftell(fs);
+    if (pos < 0)
+        ErrorCode = SFerror();
+    return pos;
+}
+
+int     FILEFile::GetLength()
+{
+    int pos = Tell();
+    if (pos >= 0)
+    {
+        Seek (0, Seek_End);
+        int size = Tell();
+        Seek (pos, Seek_Set);
+        return size;
+    }
+    return -1;
+}
+SInt64  FILEFile::LGetLength()
+{
+    SInt64 pos = LTell();
+    if (pos >= 0)
+    {
+        LSeek (0, Seek_End);
+        SInt64 size = LTell();
+        LSeek (pos, Seek_Set);
+        return size;
+    }
+    return -1;
+}
+
+int     FILEFile::GetErrorCode()
+{
+    return ErrorCode;
+}
+
+// ** Stream implementation & I/O
+int     FILEFile::Write(const UByte *pbuffer, int numBytes)
+{
+    if (LastOp && LastOp != Open_Write)
+        fflush(fs);
+    LastOp = Open_Write;
+    int written = (int) fwrite(pbuffer, 1, numBytes, fs);
+    if (written < numBytes)
+        ErrorCode = SFerror();
+
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+    if (written > 0)
+        TestPos += written;
+#endif
+
+    return written;
+}
+
+int     FILEFile::Read(UByte *pbuffer, int numBytes)
+{
+    if (LastOp && LastOp != Open_Read)
+        fflush(fs);
+    LastOp = Open_Read;
+    int read = (int) fread(pbuffer, 1, numBytes, fs);
+    if (read < numBytes)
+        ErrorCode = SFerror();
+
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+    if (read > 0)
+    {
+        // Read-in data must match our pre-loaded buffer data!
+        UByte* pcompareBuffer = pFileTestBuffer + TestPos;
+        for (int i=0; i< read; i++)
+        {
+            OVR_ASSERT(pcompareBuffer[i] == pbuffer[i]);
+        }
+
+        //OVR_ASSERT(!memcmp(pFileTestBuffer + TestPos, pbuffer, read));
+        TestPos += read;
+        OVR_ASSERT(ftell(fs) == (int)TestPos);
+    }
+#endif
+
+    return read;
+}
+
+// Seeks ahead to skip bytes
+int     FILEFile::SkipBytes(int numBytes)
+{
+    SInt64 pos    = LTell();
+    SInt64 newPos = LSeek(numBytes, Seek_Cur);
+
+    // Return -1 for major error
+    if ((pos==-1) || (newPos==-1))
+    {
+        return -1;
+    }
+    //ErrorCode = ((NewPos-Pos)<numBytes) ? errno : 0;
+
+    return int (newPos-(int)pos);
+}
+
+// Return # of bytes till EOF
+int     FILEFile::BytesAvailable()
+{
+    SInt64 pos    = LTell();
+    SInt64 endPos = LGetLength();
+
+    // Return -1 for major error
+    if ((pos==-1) || (endPos==-1))
+    {
+        ErrorCode = SFerror();
+        return 0;
+    }
+    else
+        ErrorCode = 0;
+
+    return int (endPos-(int)pos);
+}
+
+// Flush file contents
+bool    FILEFile::Flush()
+{
+    return !fflush(fs);
+}
+
+int     FILEFile::Seek(int offset, int origin)
+{
+    int newOrigin = 0;
+    switch(origin)
+    {
+    case Seek_Set: newOrigin = SEEK_SET; break;
+    case Seek_Cur: newOrigin = SEEK_CUR; break;
+    case Seek_End: newOrigin = SEEK_END; break;
+    }
+
+    if (newOrigin == SEEK_SET && offset == Tell())
+        return Tell();
+
+    if (fseek (fs, offset, newOrigin))
+    {
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+        OVR_ASSERT(0);
+#endif
+        return -1;
+    }
+    
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+    // Track file position after seeks for read verification later.
+    switch(origin)
+    {
+    case Seek_Set:  TestPos = offset;       break;
+    case Seek_Cur:  TestPos += offset;      break;    
+    case Seek_End:  TestPos = FileTestLength + offset; break;
+    }
+    OVR_ASSERT((int)TestPos == Tell());
+#endif
+
+    return (int)Tell();
+}
+
+SInt64  FILEFile::LSeek(SInt64 offset, int origin)
+{
+    return Seek((int)offset,origin);
+}
+
+int FILEFile::CopyFromStream(File *pstream, int byteSize)
+{
+    UByte   buff[0x4000];
+    int     count = 0;
+    int     szRequest, szRead, szWritten;
+
+    while (byteSize)
+    {
+        szRequest = (byteSize > int(sizeof(buff))) ? int(sizeof(buff)) : byteSize;
+
+        szRead    = pstream->Read(buff, szRequest);
+        szWritten = 0;
+        if (szRead > 0)
+            szWritten = Write(buff, szRead);
+
+        count    += szWritten;
+        byteSize -= szWritten;
+        if (szWritten < szRequest)
+            break;
+    }
+    return count;
+}
+
+
+bool FILEFile::Close()
+{
+#ifdef OVR_FILE_VERIFY_SEEK_ERRORS
+    if (pFileTestBuffer)
+    {
+        OVR_FREE(pFileTestBuffer);
+        pFileTestBuffer = 0;
+        FileTestLength  = 0;
+    }
+#endif
+
+    bool closeRet = !fclose(fs);
+
+    if (!closeRet)
+    {
+        ErrorCode = SFerror();
+        return 0;
+    }
+    else
+    {
+        Opened    = 0;
+        fs        = 0;
+        ErrorCode = 0;
+    }
+
+    // Handle safe truncate
+    /*
+    if ((OpenFlags & OVR_FO_SAFETRUNC) == OVR_FO_SAFETRUNC)
+    {
+        // Delete original file (if it existed)
+        DWORD oldAttributes = FileUtilWin32::GetFileAttributes(FileName);
+        if (oldAttributes!=0xFFFFFFFF)
+            if (!FileUtilWin32::DeleteFile(FileName))
+            {
+                // Try to remove the readonly attribute
+                FileUtilWin32::SetFileAttributes(FileName, oldAttributes & (~FILE_ATTRIBUTE_READONLY) );
+                // And delete the file again
+                if (!FileUtilWin32::DeleteFile(FileName))
+                    return 0;
+            }
+
+        // Rename temp file to real filename
+        if (!FileUtilWin32::MoveFile(TempName, FileName))
+        {
+            //ErrorCode = errno;
+            return 0;
+        }
+    }
+    */
+    return 1;
+}
+
+/*
+bool    FILEFile::CloseCancel()
+{
+    bool closeRet = (bool)::CloseHandle(fd);
+
+    if (!closeRet)
+    {
+        //ErrorCode = errno;
+        return 0;
+    }
+    else
+    {
+        Opened    = 0;
+        fd        = INVALID_HANDLE_VALUE;
+        ErrorCode = 0;
+    }
+
+    // Handle safe truncate (delete tmp file, leave original unchanged)
+    if ((OpenFlags&OVR_FO_SAFETRUNC) == OVR_FO_SAFETRUNC)
+        if (!FileUtilWin32::DeleteFile(TempName))
+        {
+            //ErrorCode = errno;
+            return 0;
+        }
+    return 1;
+}
+*/
+
+Ptr<File> FileFILEOpen(const String& path, int flags, int mode)
+{
+    Ptr<File> result = *new FILEFile(path, flags, mode);
+	return result;
+}
+
+// Helper function: obtain file information time.
+bool    SysFile::GetFileStat(FileStat* pfileStat, const String& path)
+{
+#if defined(OVR_OS_WIN32)
+    // 64-bit implementation on Windows.
+    struct __stat64 fileStat;
+    // Stat returns 0 for success.
+    wchar_t *pwpath = (wchar_t*)OVR_ALLOC((UTF8Util::GetLength(path.ToCStr())+1)*sizeof(wchar_t));
+    UTF8Util::DecodeString(pwpath, path.ToCStr());
+
+    int ret = _wstat64(pwpath, &fileStat);
+    OVR_FREE(pwpath);
+    if (ret) return false;
+#else
+    struct stat fileStat;
+    // Stat returns 0 for success.
+    if (stat(path, &fileStat) != 0)
+        return false;
+#endif
+    pfileStat->AccessTime = fileStat.st_atime;
+    pfileStat->ModifyTime = fileStat.st_mtime;
+    pfileStat->FileSize   = fileStat.st_size;
+    return true;
+}
+
+} // Namespace OVR