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view docs/html/sdlgetvideosurface.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_GetVideoSurface</TITLE
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>SDL_GetVideoSurface</H1
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>Name</H2
>SDL_GetVideoSurface&nbsp;--&nbsp;returns a pointer to the current display surface</DIV
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>Synopsis</H2
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><PRE
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>#include "SDL.h"</PRE
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><CODE
><CODE
CLASS="FUNCDEF"
>SDL_Surface *<B
CLASS="FSFUNC"
>SDL_GetVideoSurface</B
></CODE
>(void);</CODE
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><H2
>Description</H2
><P
>This function returns a pointer to the current display surface.
If SDL is doing format conversion on the display surface, this
function returns the publicly visible surface, not the real video
surface.</P
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>SDL_Surface</SPAN
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