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f15c0b695a
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Allan Sandfeld Jensen f15c0b695a Optimize QImage checkForAlphaPixels 
This routine is often called to down-convert pixmaps and backing
stores to RGB32.

This patch replaces a comparison in each pixel, with a single AND in
each pixel and a comparison at each line. The new form is also auto-
vectorized by at least GCC.

Change-Id: I3e07585a3ec12f888321d35da57ac99b561dbec4
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
2016-05-23 13:31:57 +00:00
bin Merge remote-tracking branch 'origin/5.6.0' into 5.7 2016-03-07 17:08:56 +01:00
config.tests Merge remote-tracking branch 'origin/5.6' into 5.7 2016-05-19 12:55:27 +02:00
dist Add changelog for 5.6.0 2016-03-01 11:23:43 +00:00
doc Doc: Highlight Quick Controls 2 - Gallery example 2016-05-09 09:13:40 +00:00
examples Merge "Merge remote-tracking branch 'origin/5.6' into 5.7" into refs/staging/5.7 2016-05-19 17:50:46 +00:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
mkspecs Merge remote-tracking branch 'origin/5.6' into 5.7 2016-05-19 12:55:27 +02:00
qmake Merge "Merge remote-tracking branch 'origin/5.6' into 5.7" into refs/staging/5.7 2016-05-19 17:50:46 +00:00
src Optimize QImage checkForAlphaPixels 2016-05-23 13:31:57 +00:00
tests Fix compilation without process support 2016-05-20 10:37:18 +00:00
tools Merge remote-tracking branch 'origin/5.6' into 5.7 2016-05-19 12:55:27 +02:00
util Re-generate QLocale data from CLDR v29 2016-04-08 03:51:18 +00:00
.gitattributes
.gitignore normalize structure of plugandpaint example 2016-05-03 10:25:18 +00:00
.qmake.conf Merge remote-tracking branch 'origin/5.6' into 5.7 2016-05-19 12:55:27 +02:00
.tag
configure Merge remote-tracking branch 'origin/5.6' into 5.7 2016-05-19 12:55:27 +02:00
configure.bat Add initial clang-cl support to Qt 2016-02-11 12:54:06 +00:00
header.BSD Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.BSD-OLD Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.COMM Add header template for commercial only modules 2015-10-19 10:37:18 +00:00
header.FDL Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.FDL-OLD Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.GPL Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.GPL-EXCEPT Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.LGPL Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.LGPL3 Update copyright headers 2015-02-11 06:49:51 +00:00
header.LGPL3-COMM Update copyright headers 2015-02-11 06:49:51 +00:00
header.LGPL21 Update copyright headers 2015-02-11 06:49:51 +00:00
header.LGPL-NOGPL2 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
header.LGPL-ONLY Update copyright headers 2015-02-11 06:49:51 +00:00
INSTALL Doc: Update links in INSTALL file 2015-02-16 09:06:41 +00:00
LGPL_EXCEPTION.txt Update copyright headers 2015-02-11 06:49:51 +00:00
LICENSE.FDL
LICENSE.GPL2 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3-EXCEPT Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPLv3 fix up license references 2015-08-13 11:13:09 +00:00
LICENSE.LGPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPLv3 Bump copyright year to 2016 2016-01-29 13:30:04 +00:00
LICENSE.LGPLv21 Bump copyright year to 2016 2016-01-29 13:30:04 +00:00
LICENSE.PREVIEW.COMMERCIAL Add new license header templates and license files 2016-01-14 20:43:46 +00:00
qtbase.pro mkspec: Correctly cleanup qhost.pri file. 2016-03-22 09:45:10 +00:00
sync.profile make a proper header-only module for QtZlib 2015-11-17 20:22:17 +00:00