[Lazarus] Fast drawing to canvas

Sven Barth pascaldragon at googlemail.com
Thu Feb 9 13:16:05 CET 2012


Am 09.02.2012 12:31, schrieb Hans-Peter Diettrich:
>> I'll wait for your sample images before I take another look. But from
>> my initial testing, there is something seriously screwy in your case
>> to get only 11fps. I can't imagine loading a 40kb PNG vs a 140kb BMP
>> can make up that a huge difference in framerate.
>
> Hardware support may be a bottleneck. Can you disable graphics hardware
> acceleration on your system?
>
> Many graphics adapters require proprietary drivers for hardware
> acceleration, which are not installed by default on Linux systems.

The situation has improved in the recent years. At least the open source 
ATI drivers have a rather good hardware acceleration support (though 
maybe not on the newest cards). E.g. on my Mobility Radeon 9700 they 
outperform the last binary release for that card from around 2009.

Regards,
Sven




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