Bug 7919 - Xming: better blitting in multiwindow mode
Summary: Xming: better blitting in multiwindow mode
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/DDX/Xwin (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Windows (All)
: high normal
Assignee: Xorg Project Team
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Reported: 2006-08-19 03:30 UTC by Colin Harrison
Modified: 2006-08-24 05:55 UTC (History)
0 users

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Attachments
Patch to achieve this (2.29 KB, patch)
2006-08-19 03:32 UTC, Colin Harrison 		no flags Details | Splinter Review
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Description Colin Harrison 2006-08-19 03:30:32 UTC 
Patch to:-
Increase the performance in multiwindow mode by checking for bogus PAINTSTRUCTs 
before calling BitBlt in WM_PAINT. A simple trap reduces the number of BitBlts 
by ~1/3 when painting overlapping windows. 
Following on from above, only BitBlt within the invalid rectangle in 
multiwindow WM_PAINT, instead of the whole client area. 
And alter winShadowUpdateGDI to do no unnecessary blitting in multiwindow mode.
Comment 1 Colin Harrison 2006-08-19 03:32:13 UTC 
Created attachment 6603 [details] [review]
Patch to achieve this
Comment 2 Colin Harrison 2006-08-19 03:42:23 UTC 
This improvement is equally applicable to Cygwin/X and Xming.
Comment 3 Alan Hourihane 2006-08-24 05:55:33 UTC 
Applied. Thanks.

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