[Interest] Qt 5 worries - A plea for software rendering fallbacks

[Schimkowitsch Robert]

Hi all,

I see there's no Qt5-Feedback list up and running, so I'll post here in
the meantime.

I have really big issues with the "OpenGL ES" decision. I have developed
a 2D-graphic engine for Windows (kinda similar to GraphicsView in its
abilities), based on OpenGL.

Over the years, I had tons of trouble with
-) Memory or resource leaks in graphic card drivers
-) Crashes when using Remote Desktop
-) Drivers only working in single monitor mode
-) Issues where the graphic output would look different on a certain
graphic card (an absolute no-go for a technical application that people
depend on)

After battling those issues for several years, I had to drop back to the
Microsoft OpenGL 1.1 software driver. Fortunately, it is  quite fast
enough for what I need. It does have it's flaws, but at least I know
them and can work around them.

Please, take it from someone who has been trough the fires: Provide a
pure software rendering fallback, at least for QWidget and
QGraphicsView-based applications!
Allow the developer to choose this fallback!

It makes all the difference between testing the resulting application
once, or on every graphic card with every driver version a customer
might use. Which is obviously impossible.

Kind regards

Robert Schimkowitsch

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