// Read the given file into memory and return a pointer to the allocated
// buffer. The buffer will be null-terminated, like a C string; you can
// also obtain the data length by passing a pointer to an unsigned long
// as the (optional) second parameter. The buffer should be freed with
// delete[] when no longer needed.
char *readFile(const std::string& path, unsigned long *size_ret)
{
long fileSize;
#ifdef BBGE_BUILD_VFS
VFILE *vf = vfs.GetFile(path.c_str());
if (!vf)
return NULL;
char *buffer = (char*)vf->getBuf(NULL, NULL);
fileSize = vf->size();
vf->dropBuf(false); // unlink buffer from file
#else
FILE *f = fopen(path.c_str(), "rb");
if (!f)
return NULL;
if (fseek(f, 0, SEEK_END) != 0
|| (fileSize = ftell(f)) < 0
|| fseek(f, 0, SEEK_SET) != 0)
{
debugLog(path + ": Failed to get file size");
fclose(f);
return NULL;
}
char *buffer = new char[fileSize + 1];
if (!buffer)
{
std::ostringstream os;
os << path << ": Not enough memory for file ("
<< (fileSize+1) << " bytes)";
debugLog(os.str());
fclose(f);
return NULL;
}
long bytesRead = fread(buffer, 1, fileSize, f);
if (bytesRead != fileSize)
{
std::ostringstream os;
os << path << ": Failed to read file (only got "
<< bytesRead << " of " << fileSize << " bytes)";
debugLog(os.str());
fclose(f);
return NULL;
}
fclose(f);
buffer[fileSize] = 0;
#endif
if (size_ret)
*size_ret = fileSize;
return buffer;
}
VFILE *vfopen(const char *fn, const char *mode)
{
if (strchr(mode, 'w'))
{
fprintf(stderr, "FileAPI.h: File writing via VFS not yet supported!");
return NULL;
}
VFILE *vf = vfs.GetFile(fn);
if (!vf || !vf->open(mode))
return NULL;
++(vf->ref); // keep the file alive until closed.
return vf;
}
VFILE *vfopen(const char *fn, const char *mode)
{
if (strchr(mode, 'w'))
{
assert(0 && "ttvfs_stdio: File writing via VFS not yet supported!");
return NULL;
}
VFILE *vf = vfs->GetFile(fn);
if (!vf || !vf->open(mode))
return NULL;
vf->incref(); // keep the file alive until closed.
return vf;
}
