Allegro 4.2 window size constraints

Allegro 4.2 window size constraints

jmasterx

Member #11,410

October 2009

Hello,
I'm making a game in Allegro that requires the game to be a certain size based on the desktop resolution. I developed a resizing algorithm that ensures the window is never bigger than DESKTOP_WIDTH - 40, DESKTOP_HEIGHT - 40.
It seems however that at certain resolutions, Allegro crashes on initializing the graphics. my algorithm will for instance on 1280 * 800 resolution, -> Allegro Window of 1042 * 613... is there an additional constraint I should be imposing on my window sizing algorithm?

Thanks

Agui GUI API -> https://github.com/jmasterx/Agui
Agui 0.2 Release Thread -> https://www.allegro.cc/forums/thread/612830

gnolam

Member #2,030

March 2002

Try to keep your window sizes as multiples of four. But it shouldn't crash under any circumstances - how are you handling failures of set_gfx_mode()?

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Thomas Fjellstrom

Member #476

June 2000

I think set_gfx_mode will fail if you try to make a window larger than the screen (including the window border), so always check the return value of set_gfx_mode, and retry with a smaller size.

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jmasterx

Member #11,410

October 2009

FIXED IT!!!

They HAVE to be multiples of 2...

Agui GUI API -> https://github.com/jmasterx/Agui
Agui 0.2 Release Thread -> https://www.allegro.cc/forums/thread/612830

Matthew Leverton

Supreme Loser

January 1999

It needs to be a multiple of four.

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jmasterx

Member #11,410

October 2009

After testing, multiples of 8 fixed everything, thanks all

Agui GUI API -> https://github.com/jmasterx/Agui
Agui 0.2 Release Thread -> https://www.allegro.cc/forums/thread/612830

Trent Gamblin

Member #261

April 2000

Just to make sure use multiples of 16.

Tobias Dammers

Member #2,604

August 2002

To make really really extra super sure, use multiples of 0x1000.

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Mark Oates

Member #1,146

March 2001

use multiples of PI.

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GullRaDriel

Member #3,861

September 2003

You're all wrong. It's just a parameter of the gold number derivative.

"Code is like shit - it only smells if it is not yours"
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type568

Member #8,381

March 2007

GullRaDriel said:

You're all wrong. It's just a parameter of the gold number derivative.

Nope, it's all about multiple of current NASDAQ index.

Neil Black

Member #7,867

October 2006

I just make my resolution be 42.