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view docs/html/sdljoystickgethat.html @ 3880:74e828c64315 SDL-1.2

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Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:45:37 +0000
parents 355632dca928
children
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<HTML
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>SDL_JoystickGetHat</TITLE
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><H1
><A
NAME="SDLJOYSTICKGETHAT"
></A
>SDL_JoystickGetHat</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN6358"
></A
><H2
>Name</H2
>SDL_JoystickGetHat&nbsp;--&nbsp;Get the current state of a joystick hat</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN6361"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN6362"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>Uint8 <B
CLASS="FSFUNC"
>SDL_JoystickGetHat</B
></CODE
>(SDL_Joystick *joystick, int hat);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN6368"
></A
><H2
>Description</H2
><P
>SDL_JoystickGetHat returns the current state of the given <TT
CLASS="PARAMETER"
><I
>hat</I
></TT
> on the given <TT
CLASS="PARAMETER"
><I
>joystick</I
></TT
>.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN6373"
></A
><H2
>Return Value</H2
><P
>The current state is returned as a Uint8 which is defined as an OR'd combination of one or more of the following</P
><P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_CENTERED</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_UP</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_RIGHT</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_DOWN</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_LEFT</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_RIGHTUP</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_RIGHTDOWN</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_LEFTUP</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_LEFTDOWN</TT
></TD
></TR
></TBODY
></TABLE
><P
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></DIV
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><A
NAME="AEN6395"
></A
><H2
>See Also</H2
><P
><A
HREF="sdljoysticknumhats.html"
><TT
CLASS="FUNCTION"
>SDL_JoystickNumHats</TT
></A
></P
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