common/SC_StandAloneInfo_Darwin.cpp

   1 #if defined(__APPLE__) || defined(SC_IPHONE)
   2
   3 #include <sys/param.h>
   4 #include <stdexcept>
   5 #include <cstring>  // for strncpy
   6 #include <mach-o/dyld.h> // for _NSGetExecutablePath
   7 #include <libgen.h>
   8 #include <stdlib.h>
   9
  10 #include <CoreFoundation/CFString.h>
  11 #include <CoreFoundation/CFBundle.h>
  12 //#include <CoreServices/CoreServices.h>
  13
  14 #include "SC_StandAloneInfo_Darwin.h"
  15
  16 bool SC_StandAloneInfo::haveCheckedBundleStatus;
  17 char SC_StandAloneInfo::dirPath[PATH_MAX];
  18
  19 void SC_StandAloneInfo::SC_StandAloneInfoInit() {
  20         char relDir[PATH_MAX];
  21         CFStringEncoding encoding = kCFStringEncodingASCII;
  22         if(!haveCheckedBundleStatus) {
  23                 haveCheckedBundleStatus = true;
  24                 CFURLRef enablerURL = CFBundleCopyResourceURL (
  25                         CFBundleGetMainBundle(),
  26                         CFSTR("SCClassLibrary"),
  27                         NULL,
  28                         NULL
  29                 );
  30                 if ( enablerURL ) {
  31                         // If sclang or SuperCollider binary is run within the .app bundle,
  32                         // this is how we find the Resources path.
  33                         CFStringRef rawPath = CFURLCopyFileSystemPath(enablerURL, kCFURLPOSIXPathStyle);
  34                         rawPath = CFStringCreateWithFormat(NULL, NULL, CFSTR("%@/.."), rawPath);
  35                         CFStringGetCString(rawPath, relDir, PATH_MAX, encoding);
  36                 } else {
  37                         // when sclang is run from a symlink, the resource URL above will not be found,
  38                         // so we need to find the path of the executable.
  39                         uint32_t bufsize = PATH_MAX, *bufsizep = &bufsize;
  40                         if(_NSGetExecutablePath(relDir, bufsizep)==0) {
  41                                 realpath(relDir, dirPath); // resolve symlink
  42                                 char *dir = dirname(dirPath);
  43                                 strcpy(dirPath, dir);
  44                                 return;
  45                         } else {
  46                                 // in case it failed, fall back to current directory
  47                                 getcwd(dirPath, PATH_MAX);
  48                         }
  49                 }
  50                 realpath(relDir, dirPath);
  51         }
  52 }
  53
  54 bool SC_StandAloneInfo::IsStandAlone() {
  55 #ifdef SC_STANDALONE
  56     return true;
  57 #else
  58     return false;
  59 #endif
  60 }
  61
  62 void SC_StandAloneInfo::GetResourceDir(char* pathBuf, int length)
  63 {
  64         if ( !haveCheckedBundleStatus )
  65         {
  66                 SC_StandAloneInfoInit();
  67         }
  68         strncpy(pathBuf, dirPath, length);
  69 }
  70
  71 #endif