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Date: 28 Jun 2003 22:42:52 +0100 From: Alan Swanson Subject: Re: [SDL] New XFree 4.3 Video Mode Patch I have a wee amendment that moves the qsort in set_best_resolution to only occur after failing to find an exact match only. This would make absolutely sure we get a user set mode. While I've never had any problems for my normal resolutions (1280x1024, 1024x768, 800x600 & 640,480) while closely examining the output from qsort I've noticed it doesn't seem to sort the modes fully. These is one definite wrong at 1152x768 and a few that just look wrong to me. From a program (attached) I made to examine this more easily. X has sorted its mode list using the same method as ours (plus frequency), and our user modes get inserted without any other movement. On the patch I've made I've also changed cmpmodes to sort on vertical resolution and then horizontal. Ie vertical is now most significant bit.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 28 Jun 2003 21:52:26 +0000
parents 55f1f1b3e27d
children 355632dca928
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<HTML
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>Time</TITLE
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>Chapter 13. Time</A
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><DL
><DT
><B
>Table of Contents</B
></DT
><DT
><A
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>SDL_GetTicks</A
> &#8212; Get the number of milliseconds since the SDL library initialization.</DT
><DT
><A
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>SDL_Delay</A
> &#8212; Wait a specified number of milliseconds before returning.</DT
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> &#8212; Add a timer which will call a callback after the specified number of milliseconds has
elapsed.</DT
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>SDL_RemoveTimer</A
> &#8212; Remove a timer which was added with
<A
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>SDL_AddTimer</A
>.</DT
><DT
><A
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>SDL_SetTimer</A
> &#8212; Set a callback to run after the specified number of milliseconds has
elapsed.</DT
></DL
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><P
>SDL provides several cross-platform functions for dealing with time.
It provides a way to get the current time, a way to wait a little while,
and a simple timer mechanism.  These functions give you two ways of moving an
object every x milliseconds:

<P
></P
><UL
><LI
><P
>Use a timer callback function.  This may have the bad effect that it runs in a seperate thread or uses alarm signals, but it's easier to implement.</P
></LI
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>Or you can get the number of milliseconds passed, and move the object if, for example, 30 ms passed.</P
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