<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>50064</bug_id>
          
          <creation_ts>2010-11-25 03:55:32 -0800</creation_ts>
          <short_desc>[Qt] Make tiling on WebKit2 more responsive</short_desc>
          <delta_ts>2012-07-11 14:14:47 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>Layout and Rendering</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>INVALID</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords>Qt, QtTriaged</keywords>
          <priority>P3</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Noam Rosenthal">noam</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>benjamin</cc>
    
    <cc>kling</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>313677</commentid>
    <comment_count>0</comment_count>
    <who name="Noam Rosenthal">noam</who>
    <bug_when>2010-11-25 03:55:32 -0800</bug_when>
    <thetext>Right now the tiling implementation on Qt WebKit2 still stutters a bit.
There are several steps that could be taken to rectify:
1. reduce number of allocations/deallocations
2. Move to live textures, to avoid uploads
3. Optimize painting into update-chunks by painting with one go to adjacent tiles.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>414963</commentid>
    <comment_count>1</comment_count>
    <who name="Andreas Kling">kling</who>
    <bug_when>2011-06-03 09:54:34 -0700</bug_when>
    <thetext>Committed r88027: &lt;http://trac.webkit.org/changeset/88027&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>415110</commentid>
    <comment_count>2</comment_count>
    <who name="Andreas Kling">kling</who>
    <bug_when>2011-06-03 12:58:03 -0700</bug_when>
    <thetext>Oops, didn&apos;t mean to close this.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>667046</commentid>
    <comment_count>3</comment_count>
    <who name="Noam Rosenthal">noam</who>
    <bug_when>2012-07-11 14:14:47 -0700</bug_when>
    <thetext>Closing, we should open more specific bugs for this when needed.</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>