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Date: Thu, 26 Apr 2001 10:46:23 +0200 From: Alexander Pipelka <pipelka@bms-austria.com> Subject: SDL ELO driver bugfix Hi Sam! We noticed that the ELO serial touchscreen controller is quite sensitive in terms of correct protocol handling. The current implementation cause some controllers to hangup after some time (> 24h). I think the attached patch should fix this (I ran my device more than 3 days without any hangups).
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:54:56 +0000
parents 74212992fb08
children 55f1f1b3e27d
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<HTML
><HEAD
><TITLE
>SDL_MixAudio</TITLE
><META
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><H1
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>SDL_MixAudio</A
></H1
><DIV
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><A
NAME="AEN6485"
></A
><H2
>Name</H2
>SDL_MixAudio&nbsp;--&nbsp;Mix audio data</DIV
><DIV
CLASS="REFSYNOPSISDIV"
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></A
><H2
>Synopsis</H2
><DIV
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><P
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_MixAudio</B
></CODE
>(Uint8 *dst, Uint8 *src, Uint32 len, int volume);</CODE
></P
><P
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><A
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><H2
>Description</H2
><P
>This takes two audio buffers of the playing audio format and mixes
them, performing addition, volume adjustment, and overflow clipping.
The <TT
CLASS="PARAMETER"
><I
>volume</I
></TT
> ranges from 0 - 128, 
and should be set to <TT
CLASS="LITERAL"
>SDL_MIX_MAXVOLUME</TT
>
for full audio volume.  Note this does not change hardware volume.
This is provided for convenience -- you can mix your own audio data.</P
></DIV
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><H2
>See Also</H2
><P
><A
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><TT
CLASS="FUNCTION"
>SDL_OpenAudio</TT
></A
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