[Lazarus] Fast drawing to canvas

Reimar Grabowski reimgrab at web.de
Sat Feb 11 04:12:56 CET 2012


On Fri, 10 Feb 2012 20:13:51 +0100
Darius Blaszyk <dhkblaszyk at zeelandnet.nl> wrote:

> http://wiki.lazarus.freepascal.org/Fast_direct_pixel_access#Speed_comparison
> 
> I was shocked to see this, but I confirmed this results at least on windows.
The same on Linux, but the methods that were faster than OpenGL (with or without PBO) don't produce any visuell output for me so I was not really that shocked. :)
Either I don't understand the code (just took a brief look at the drawing methods) and there is some bug or they are not even meant to produce any output.

R.




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