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Active: 625 users

1.16.1 repfix (pause/chat)

Forum Index > BW General
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1 2 3 Next All
Python_Max
Profile Joined November 2007
Ukraine51 Posts
Last Edited: 2009-01-27 08:40:07
January 25 2009 16:14 GMT
#1
RepFix is a BWL/ChaosLauncher plugin which fixes StarCraft's (1.16.1) crash when watching a replay with chat text recorded while game was paused.

Download v. 0.0.0.4: http://depositfiles.com/files/wk71bm2ie

The bug itself seems to be very old.
Basically replay action processing looks like:
1) read the actions for next tick and copy actions data to the buffer
2) wait until that tick comes, read actions from the buffer and execute

When game is paused the tick remains unchanged, so every chat message written while game paused has been recorded with that tick when game was paused.
The problem is in that the buffer in which actions are copied for execution is too small. I believe about 12 messages are enough to make it overflow. And when overflow happens the data overrides neighbor memory areas in which are other variables located.The consequences can be very different and depend on amount of messages has been recorded during pause.

What I did is a replacement of static buffer with dynamic one.
1) when copying actions to the buffer:
1.1) when overwrite - allocate new buffer, write data to the new buffer
1.2) when append (multiple actions for a single tick) - append to the previously allocated buffer increasing its size if needed
2) when reading from a static buffer - return a pointer to the dynamic buffer instead of static

Plugin patches StarCraft's code, so use it on your own risk!

I will be very appreciated for any testing/bugreports.
Later I will merge this fix into ICCup Launcher.

EDIT: It has nothing to do with saving a replay, it just fixes a playback
You need this only when watching a replay not playing a game.

Thanks.


PS: I believe the main mistake of BW developers was to count chat text as game action. I would rather record/read it in a different way. But I'm not the one who decide ^^

EDIT: http://www.iccup.com/starcraft/forum/general_forum/starcraft_forum_/50888.html?1232900679

EDIT2: the bug is old, but it was impossible to produce so many actions for a single tick... before RWT was implemented! Because player was unable to make game actions while game paused. Thats why I believe that text messages should not count as game actions.

UPDATE: v. 0.0.0.2 should work online now.
UPDATE: v. 0.0.0.3 fixed action loss in bnet-mode.
UPDATE: v. 0.0.0.4 fixed activation behavior (when replay starts)
fusionsdf
Profile Blog Joined June 2006
Canada15390 Posts
Last Edited: 2009-01-25 16:18:32
January 25 2009 16:17 GMT
#2
foreign community: 26
blizzard devs: 2

----
nice work, thanks :D
SKT_Best: "I actually chose Protoss because it was so hard for me to defeat Protoss as a Terran. When I first started Brood War, my main race was Terran."
GTR
Profile Blog Joined September 2004
51441 Posts
January 25 2009 16:25 GMT
#3
Nice!

Uploaded onto TL webspace because host sites suck!

Here!
Commentator
Racenilatr
Profile Blog Joined August 2008
United States2756 Posts
January 25 2009 16:26 GMT
#4
very awsome. Thanks!

Btw:Mega Upload doesn't suck that badly
Python_Max
Profile Joined November 2007
Ukraine51 Posts
January 25 2009 16:27 GMT
#5
On January 26 2009 01:17 fusionsdf wrote:
foreign community: 26
blizzard devs: 2

Sorry don't get this :D
freelander
Profile Blog Joined December 2004
Hungary4707 Posts
January 25 2009 16:29 GMT
#6
On January 26 2009 01:27 Python_Max wrote:
Show nested quote +
On January 26 2009 01:17 fusionsdf wrote:
foreign community: 26
blizzard devs: 2

Sorry don't get this :D


score
And all is illuminated.
IzzyCraft
Profile Blog Joined June 2007
United States4487 Posts
January 25 2009 16:32 GMT
#7
Is that 26 really meaning something vs the 2 what is the 2 blizzard gets?
I have ass for brains so,
even when I shit I'm droping knowledge.
Cloud
Profile Blog Joined November 2004
Sexico5880 Posts
January 25 2009 16:34 GMT
#8
Like... its a JOKE dude, dont take it so seriously..
BlueLaguna on West, msg for game.
MasterReY
Profile Blog Joined August 2007
Germany2708 Posts
January 25 2009 16:34 GMT
#9
wow great THANKS !
https://www.twitch.tv/MasterReY/ ~ Biggest Reach fan on TL.net (Don't even dare to mention LR now) ~ R.I.P Violet ~ Developer of SCRChart
TL+ Member
MasterOfChaos
Profile Blog Joined April 2007
Germany2896 Posts
January 25 2009 16:37 GMT
#10
nice
Starcraft had(I think it was fixed in 1.15.0) a bug where if the data for a replayframe was >255 bytes the replay got corruped. In that patch they corrected it to start a new replayframe with the same framenumber containing the remaining commands which apparently fixed the problem(PP did it way before blizzard by the way). So I'm surprised that chat cause these problems, while multicommands do not. They generate many commands in one frame and corrupted the replay before the fix.
LiquipediaOne eye to kill. Two eyes to live.
Doso
Profile Joined March 2008
Germany769 Posts
January 25 2009 16:37 GMT
#11
I loaded this into Chaoslauncher.

When I am trying to connect to Battle.net (Europe) with English StarcraftI get an error saying that Starcraft can't verify the application version. A friend of mine has the same problem.
Python_Max
Profile Joined November 2007
Ukraine51 Posts
Last Edited: 2009-01-25 16:43:27
January 25 2009 16:41 GMT
#12
On January 26 2009 01:37 MasterOfChaos wrote:
nice
Starcraft had(I think it was fixed in 1.15.0) a bug where if the data for a replayframe was >255 bytes the replay got corruped. In that patch they corrected it to start a new replayframe with the same framenumber containing the remaining commands which apparently fixed the problem(PP did it way before blizzard by the way). So I'm surprised that chat cause these problems, while multicommands do not. They generate many commands in one frame and corrupted the replay before the fix.

Each message action is 82 bytes long. I think such amount of data (per tick) as 12-15 messages was not reached yet, until RWT xD
Python_Max
Profile Joined November 2007
Ukraine51 Posts
January 25 2009 16:42 GMT
#13
On January 26 2009 01:37 Doso wrote:
I loaded this into Chaoslauncher.

When I am trying to connect to Battle.net (Europe) with English StarcraftI get an error saying that Starcraft can't verify the application version. A friend of mine has the same problem.

OMG, I just patch it when started, but seems I should wait until replay starts then patch...
tec27
Profile Blog Joined June 2004
United States3696 Posts
Last Edited: 2009-01-25 17:10:19
January 25 2009 17:09 GMT
#14
Very nice job, Python But yeah, try to make it wait til a replay is loaded

Offsets I use for that:
006D0F14 - byte, 0 for out of, 1 for in replay
006D11EC - byte, 0 for out of game, 1 for ingame
(You have to use them both, because the replay one will for some reason trigger when you first enter the menu to load a replay (the file selection part). Actually, now that I think about it, using only the first one would probably work fine for this application)
Can you jam with the console cowboys in cyberspace?
imBLIND
Profile Blog Joined December 2006
United States2626 Posts
January 25 2009 18:31 GMT
#15
i don't think you can use this online cause he modded the code of starcraft...
im deaf
MasterOfChaos
Profile Blog Joined April 2007
Germany2896 Posts
January 25 2009 18:36 GMT
#16
no it's just that he patches to early and thus fails the revision check. He just needs to patch only during a replay. But of course anybody without this fix who watches the replay with you will still crash.
LiquipediaOne eye to kill. Two eyes to live.
liger13
Profile Blog Joined February 2008
United States1060 Posts
January 25 2009 18:36 GMT
#17
On January 26 2009 03:31 imBLIND wrote:
i don't think you can use this online cause he modded the code of starcraft...

at least it might speed up Blizz's patch ...
+ Show Spoiler +
might take a month and 1/2 instead of two
I feel like pwning noobs
Python_Max
Profile Joined November 2007
Ukraine51 Posts
January 25 2009 18:53 GMT
#18
UPDATE: v. 0.0.0.2 should work online now.
prOxi.Beater
Profile Joined December 2008
Denmark626 Posts
January 25 2009 19:06 GMT
#19
You can't use this fix online, but it's still nice to have for offline use.
Nobody beats the Beater
Python_Max
Profile Joined November 2007
Ukraine51 Posts
January 25 2009 19:17 GMT
#20
On January 26 2009 04:06 prOxi.Beater wrote:
You can't use this fix online, but it's still nice to have for offline use.

Why?
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