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- Added selective compression of network packets. Interestingly, most packets

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don't actually compress all that well, even the ones that aren't too short
  to possibly compress. (Maybe make the whole thing one long, never-ending
  zlib data stream with Z_SYNC_FLUSH used to chunk things at packet
  boundaries? That would probably help the compression ratio, but it would
  require changing the way the netcode determines sequence, which would be
  a much more invasive change.)


SVN r1438 (trunk)
This commit is contained in:
Randy Heit 2009-02-22 05:05:58 +00:00
commit 10c31b82cb
4 changed files with 108 additions and 38 deletions
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29
src/d_net.cpp
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@ -67,35 +67,6 @@ EXTERN_CVAR (Int, autosavecount)
//#define SIMULATEERRORS (RAND_MAX/3)
#define SIMULATEERRORS 0
#define NCMD_EXIT 0x80
#define NCMD_RETRANSMIT 0x40
#define NCMD_SETUP 0x20
#define NCMD_MULTI 0x10 // multiple players in this packet
#define NCMD_QUITTERS 0x08 // one or more players just quit (packet server only)
#define NCMD_XTICS 0x03 // packet contains >2 tics
#define NCMD_2TICS 0x02 // packet contains 2 tics
#define NCMD_1TICS 0x01 // packet contains 1 tic
#define NCMD_0TICS 0x00 // packet contains 0 tics
// [RH]
// New generic packet structure:
//
// Header:
// One byte with above flags.
// One byte with starttic
// One byte with master's maketic (master -> slave only!)
// If NCMD_RETRANSMIT set, one byte with retransmitfrom
// If NCMD_XTICS set, one byte with number of tics (minus 3, so theoretically up to 258 tics in one packet)
// If NCMD_QUITTERS, one byte with number of players followed by one byte with each player's consolenum
// If NCMD_MULTI, one byte with number of players followed by one byte with each player's consolenum
// - The first player's consolenum is not included in this list, because it always matches the sender
//
// For each tic:
// Two bytes with consistancy check, followed by tic data
//
// Setup packets are different, and are described just before D_ArbitrateNetStart().
extern BYTE *demo_p; // [RH] Special "ticcmds" get recorded in demos
extern char savedescription[SAVESTRINGSIZE];
extern FString savegamefile;