[Interest] Qt and OpenCL crash course

[Jason H]

Ah, Ok. So that's why my expectation was there!

That sorts it out for me, thanks!


________________________________
 From: Thiago Macieira <thiago.macieira at intel.com>
To: interest at qt-project.org 
Sent: Wednesday, March 12, 2014 6:20 PM
Subject: Re: [Interest] Qt and OpenCL crash course
 

Em qua 12 mar 2014, às 13:47:56, Jason H escreveu:
> I can understand why QPainter needs to be raster. One of my more fanciful
> ideas would be that the toolkit provide QGlPainter that could be used by
> QPainter and other developers, for the subset of operations easily done by
> GL and QPainter. Of course, we could never make it default as current
> computer architecture has a large delay in moving textures to and fro the
> GPU. But it would be cool if we could flag operations to be accelerated.

We tried that in Qt 4. That was the OpenGL graphics system, which you must 
remember.

The experiment failed. We concluded that the QPainter API is not conducive for 
fast processing and does not match the way that the graphics hardware expects 
data to be used.


-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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