5.0.3 More than 1 display and FPS

5.0.3 More than 1 display and FPS

komons

Member #11,083

June 2009

Is this normal that FPS fall from 1800 to 54, when I create second display?
First display have 800x600px, second have 400x100.

To check FPS I use Fraps.

Edgar Reynaldo

Major Reynaldo

May 2007

Post the minimal amount of code that produces this behaviour for you.

Eagle and Allegro 5 binaries | Older Allegro 4 and 5 binaries | Allegro 5 compile guide
King Piccolo will make it so Then I could just flip it with some sweet, sweet matrix math. In either case, I’ll ride this wagon until the wheels fall off. Thanks to those that keep it running

Thomas Fjellstrom

Member #476

June 2000

Having more than one "context" open will likely slow things down, but it shouldn't drop that far.

--
Thomas Fjellstrom - [website] - [email] - [Allegro Wiki] - [Allegro TODO]
"If you can't think of a better solution, don't try to make a better solution." -- weapon_S
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komons

Member #11,083

June 2009

Okay I make sample code, and surprise, work well! The bug is in my code. I discovered that loaded font can be used in only first display. In another displays font just make it slow. :< But all displays have the same format. So why?

Here is a sample code with font used:
http://pastie.org/2130563

space - create new display
delete - delete current display
esc - exit

Thomas Fjellstrom

Member #476

June 2000

komons said:

But all displays have the same format. So why?

Any resource that has a texture attached, is also tied to the display you initially created it for.

The easiest way to fix that is to just load the font again when the second display is set as the current display/backbuffer.