src/add-ons/media/plugins/ape_reader/MAClib/GlobalFunctions.cpp

   1 #include "All.h"
   2 #include "GlobalFunctions.h"
   3 #include "IO.h"
   4
   5 #include "CharacterHelper.h"
   6
   7 #if 0
   8 BOOL GetMMXAvailable ( void )   // 適当
   9 {
  10         return FALSE;
  11 }
  12 #endif
  13
  14 /*
  15 #ifndef __GNUC_IA32__
  16
  17 extern "C" BOOL GetMMXAvailable(void)
  18 {
  19 #ifdef ENABLE_ASSEMBLY
  20
  21     unsigned long nRegisterEDX;
  22
  23     try
  24     {
  25         __asm mov eax, 1
  26         __asm CPUID
  27         __asm mov nRegisterEDX, edx
  28        }
  29     catch(...)
  30     {
  31         return FALSE;
  32     }
  33
  34     if (nRegisterEDX & 0x800000)
  35         RETURN_ON_EXCEPTION(__asm emms, FALSE)
  36     else
  37         return FALSE;
  38
  39     return TRUE;
  40
  41 #else
  42     return FALSE;
  43 #endif
  44 }
  45
  46 #endif // #ifndef __GNUC_IA32__
  47 */
  48
  49 int ReadSafe(CIO * pIO, void * pBuffer, int nBytes)
  50 {
  51     unsigned int nBytesRead = 0;
  52     int nRetVal = pIO->Read(pBuffer, nBytes, &nBytesRead);
  53     if (nRetVal == ERROR_SUCCESS)
  54     {
  55         if (nBytes != int(nBytesRead))
  56             nRetVal = ERROR_IO_READ;
  57     }
  58
  59     return nRetVal;
  60 }
  61
  62 int WriteSafe(CIO * pIO, void * pBuffer, int nBytes)
  63 {
  64     unsigned int nBytesWritten = 0;
  65     int nRetVal = pIO->Write(pBuffer, nBytes, &nBytesWritten);
  66     if (nRetVal == ERROR_SUCCESS)
  67     {
  68         if (nBytes != int(nBytesWritten))
  69             nRetVal = ERROR_IO_WRITE;
  70     }
  71
  72     return nRetVal;
  73 }
  74
  75 BOOL FileExists(wchar_t * pFilename)
  76 {
  77     if (0 == wcscmp(pFilename, "-")  ||  0 == wcscmp(pFilename, "/dev/stdin"))
  78         return TRUE;
  79
  80 #ifdef _WIN32
  81
  82     BOOL bFound = FALSE;
  83
  84     WIN32_FIND_DATA WFD;
  85     HANDLE hFind = FindFirstFile(pFilename, &WFD);
  86     if (hFind != INVALID_HANDLE_VALUE)
  87     {
  88         bFound = TRUE;
  89         CloseHandle(hFind);
  90     }
  91
  92     return bFound;
  93
  94 #else
  95
  96     CSmartPtr<char> spANSI(GetANSIFromUTF16(pFilename), TRUE);
  97
  98     struct stat b;
  99
 100     if (stat(spANSI, &b) != 0)
 101         return FALSE;
 102
 103     if (!S_ISREG(b.st_mode))
 104         return FALSE;
 105
 106     return TRUE;
 107
 108 #endif
 109 }