RESOLVED FIXED 114030
Avoid double hash table lookups in TextureMapperGL 
https://bugs.webkit.org/show_bug.cgi?id=114030
Summary Avoid double hash table lookups in TextureMapperGL
Chris Dumez
Reported 2013-04-05 06:03:26 PDT
In TextureMapperGL, we often need to check if a key is present in the hash table: - if it is return the associated value, - if it is not create the value, add it to the hash table and return it. We currently use Vector::find() to check if it exists, and then Vector::set() to add the value to the hash table if it doesn't. This results in 2 hash lookups. We could leverage the AddResult return value of Vector::add() to do the same thing with a single hash lookup.
Attachments
Patch (5.92 KB, patch)
2013-04-05 06:07 PDT, Chris Dumez 		no flags
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Chris Dumez
Comment 1 2013-04-05 06:07:33 PDT
Created attachment 196623 [details] Patch
Noam Rosenthal
Comment 2 2013-04-05 06:16:42 PDT
Comment on attachment 196623 [details] Patch Seems a bit like a micro-optimization, as those cases only happen the first time you use a particular shader/vbo. But OK :)
WebKit Commit Bot
Comment 3 2013-04-05 06:24:28 PDT
Comment on attachment 196623 [details] Patch Clearing flags on attachment: 196623 Committed r147742: <http://trac.webkit.org/changeset/147742>
WebKit Commit Bot
Comment 4 2013-04-05 06:24:30 PDT
All reviewed patches have been landed. Closing bug.
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