Qt.git - Qt s a cross-platform application framework that is used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while still being a native application with native capabilities and speed.

	Commit message (Collapse)	Author	Age	Files	Lines
*	Included ARM NEON optimizations from pixman in Qt.	Samuel Rødal	2010-03-26	3	-0/+2641
	On the N900 16 bit text blending is 30 - 50 % faster, and ARGB32PM on RGB16 image blending now runs in 1/10th of the time it used to. We now make ARGB32PM the default pixmap format for alpha pixmaps instead of ARGB8565PM which is unaligned and bad for performance. The relevant numbers: Mostly opaque pixels: ARGB24 on ARGB24 using QPainter..................: 336,813033 ARGB32 on ARGB32 using QPainter.................: 18,419387 RGB16 on ARGB24 using QPainter..................: 167,301014 RGB16 on ARGB32 using QPainter..................: 17,279372 ARGB24 on RGB16 using QPainter..................: 35,100147 ARGB32PM on RGB16 using QPainter................: 15,924256 No opaque pixels: ARGB24 on ARGB24 using QPainter..................: 412,190765 ARGB32 on ARGB32 using QPainter.................: 16,818389 RGB16 on ARGB24 using QPainter..................: 170,957878 RGB16 on ARGB32 using QPainter..................: 16,742984 ARGB24 on RGB16 using QPainter..................: 93,600482 ARGB32PM on RGB16 using QPainter................: 15,999310 So switching to ARGB32PM should give a boost in all areas. Task-number: QTBUG-6684 Reviewed-by: Gunnar Sletta