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Changed the protocol for VoIP packets to support legacy clients.

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Previously, a legacy client wouldn't get a VoIP packet, but if they did,
 they'd panic and disconnect. Now they ignore them and continue on. This also
 gives us the framework to add other features legacy clients can ignore.

Oh, this also has the benefit of allowing us to store incoming VoIP for
 playback in recorded demos. They'll play the chatter on VoIP clients, and
 be ignored on legacy ones. Huge win.
This commit is contained in:
Ryan C. Gordon 2008-06-03 02:32:52 +00:00
parent e0ebde0b27
commit 8ab3f7af8d
6 changed files with 79 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

27
code/client/cl_parse.c
View file

@ -34,10 +34,8 @@ char *svc_strings[256] = {
"svc_download",
"svc_snapshot",
"svc_EOF",
#if USE_VOIP
"svc_voip"
#endif
"svc_extension",
"svc_voip",
};
void SHOWNET( msg_t *msg, char *s) {
@ -854,13 +852,26 @@ void CL_ParseServerMessage( msg_t *msg ) {
cmd = MSG_ReadByte( msg );
if ( cmd == svc_EOF) {
// See if this is an extension command after the EOF, which means we
// got data that a legacy client should ignore.
if ((cmd == svc_EOF) && (MSG_LookaheadByte( msg ) == svc_extension)) {
SHOWNET( msg, "EXTENSION" );
MSG_ReadByte( msg ); // throw the svc_extension byte away.
cmd = MSG_ReadByte( msg ); // something legacy clients can't do!
// sometimes you get a svc_extension at end of stream...dangling
// bits in the huffman decoder giving a bogus value?
if (cmd == -1) {
cmd = svc_EOF;
}
}
if (cmd == svc_EOF) {
SHOWNET( msg, "END OF MESSAGE" );
break;
}
if ( cl_shownet->integer >= 2 ) {
if ( !svc_strings[cmd] ) {
if ( (cmd < 0) || (!svc_strings[cmd]) ) {
Com_Printf( "%3i:BAD CMD %i\n", msg->readcount-1, cmd );
} else {
SHOWNET( msg, svc_strings[cmd] );
@ -886,11 +897,11 @@ void CL_ParseServerMessage( msg_t *msg ) {
case svc_download:
CL_ParseDownload( msg );
break;
#if USE_VOIP
case svc_voip:
#if USE_VOIP
CL_ParseVoip( msg );
break;
#endif
break;
}
}
}