This bug was fixed in the package mesa - 8.0.4-0ubuntu0.1
---------------
mesa (8.0.4-0ubuntu0.1) precise-proposed; urgency=low
* New upstream stable release. (LP: #1019444)
+ Fixes crash in intel_miptree_release()
(LP: #952896)
+ Fixes slow WebGL in firefox
(LP: #988343)
[ Robert Hooker ]
* Drop 118_fix_rendering_from_textures.patch and
117_intel_fix_hiz_null_dereference.patch, both included upstream.
* Refresh patches.
[ Bryce Harrington ]
* Add 117_nullptr_check_in_query_version.patch: Fix null pointer
deref in QueryVersion() during login.
(LP: #968284)
* Add 118_glsl_initialize_samplers.patch: Initialize samplers to 0, as
required by the spec. Fixes rendering corruption in MapsGL labels.
Cherrypick from mesa master.
(LP: #981883)
-- Bryce Harrington <[email protected]> Fri, 07 Sep 2012 13:59:12 -0700
** Changed in: mesa (Ubuntu Precise)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/988343
Title:
Patch to correct slow WebGL in Firefox (Needs 8.0.3)
Status in “mesa” package in Ubuntu:
Fix Released
Status in “mesa” source package in Precise:
Fix Released
Status in “mesa” source package in Quantal:
Fix Released
Bug description:
The Mesa 8.0 branch contains the following patch which avoids Firefox
falling back to the slow path during WebGL rendering. Could it please
be added to Precise as an SRU?
author Brian Paul <[email protected]> 2012-04-17 23:41:09 (GMT)
committer Brian Paul <[email protected]> 2012-04-17 23:41:09 (GMT)
commit 49ed43b6de98482c898334a9abfc574720391c9f
tree b9fab1a668caff3f81a75f1bbcf04d543371ca9b
parent 9f150ffe8ee5f184861a377637091e4f06210927
mesa: add a couple fast-paths to fast_read_rgba_pixels_memcpy()
Accelerates a few glReadPixels cases for WebGL.
See https://bugs.freedesktop.org/show_bug.cgi?id=48545
v2: Per Jose, use bit twiddling for the swizzle case instead of ubyte
arrays (it's about 44% faster).
Note: This is a candidate for the 8.0 branch.
Reviewed-by: José Fonseca <[email protected]>
(cherry picked from commit a5e95a419e4f6ad93e35a960113d97ae2de27476)
TESTCASE:
Open following website and compare performance:
http://swiss3d.openwebglobe.org/
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