diff options
Diffstat (limited to '3rdParty/LibMiniUPnPc/src/miniupnpc/codelength.h')
-rw-r--r-- | 3rdParty/LibMiniUPnPc/src/miniupnpc/codelength.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/3rdParty/LibMiniUPnPc/src/miniupnpc/codelength.h b/3rdParty/LibMiniUPnPc/src/miniupnpc/codelength.h new file mode 100644 index 0000000..f11e5e9 --- /dev/null +++ b/3rdParty/LibMiniUPnPc/src/miniupnpc/codelength.h @@ -0,0 +1,24 @@ +/* $Id: codelength.h,v 1.1 2008/10/06 22:04:06 nanard Exp $ */ +/* Project : miniupnp + * Author : Thomas BERNARD + * copyright (c) 2005-2008 Thomas Bernard + * This software is subjet to the conditions detailed in the + * provided LICENCE file. */ +#ifndef __CODELENGTH_H__ +#define __CODELENGTH_H__ + +/* Encode length by using 7bit per Byte : + * Most significant bit of each byte specifies that the + * following byte is part of the code */ +#define DECODELENGTH(n, p) n = 0; \ + do { n = (n << 7) | (*p & 0x7f); } \ + while(*(p++)&0x80); + +#define CODELENGTH(n, p) if(n>=268435456) *(p++) = (n >> 28) | 0x80; \ + if(n>=2097152) *(p++) = (n >> 21) | 0x80; \ + if(n>=16384) *(p++) = (n >> 14) | 0x80; \ + if(n>=128) *(p++) = (n >> 7) | 0x80; \ + *(p++) = n & 0x7f; + +#endif + |