Comment 5 for bug 981210

Hello,
when working on https://bugs.launchpad.net/mixxx/+bug/981210, It turns out
that at least on my hardware QPixamp is drawed slower than QImage. This
seems differ to that, what is stated in the Qt documentation.

Attached you will find a test QT project which shows the issue with two
Mixxx logos.
I would be pleased if you can post your results at
https://bugs.launchpad.net/mixxx/+bug/981210, so we are able to decide how
we will fix this bug.

My results are:
Qt4.8 Ubuntu Precise, nVidia 310.19, NVS 3100M:
QPixamp: min 38 µs mean 115 µs
QImage: min 22 µs mean 58 µs

Qt4.8 WinXp in a VBox
QPixamp: mean 55 µs
QImage: mean 39 µs
(It seams there is a Problem with Timing measurement in the VBox because
the Minimum Values are about 0.)

Thank You

Daniel