diff options
| -rw-r--r-- | common/stream.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/common/stream.h b/common/stream.h index d30fa63a6d..3b6d7a8d34 100644 --- a/common/stream.h +++ b/common/stream.h @@ -143,6 +143,35 @@ public: _size = _sizeOrig; _pos = 0; } + + void seek(uint32 offs, int whence = SEEK_SET) { + switch (whence) { + case SEEK_SET: + rewind(); + if (offs > _size) + offs = _size; + _size -= offs; + _ptr += offs; + _pos += offs; + break; + + case SEEK_CUR: + _size -= offs; + _ptr += offs; + _pos += offs; + break; + + case SEEK_END: + rewind(); + if (offs > _size) + offs = 0; + offs = _size - offs; + _size -= offs; + _ptr += offs; + _pos += offs; + break; + } + } }; } // End of namespace Common |