Mercurial > sdl-ios-xcode
view docs/man3/SDL_EnableUNICODE.3 @ 2042:3908e1f808e1
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 15:56:36 +0000 |
parents | e5bc29de3f0a |
children | 546f7c1eb755 |
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.TH "SDL_EnableUNICODE" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_EnableUNICODE\- Enable UNICODE translation .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_EnableUNICODE\fP\fR(\fBint enable\fR); .SH "DESCRIPTION" .PP Enables/Disables Unicode keyboard translation\&. .PP To obtain the character codes corresponding to received keyboard events, Unicode translation must first be turned on using this function\&. The translation incurs a slight overhead for each keyboard event and is therefore disabled by default\&. For each subsequently received key down event, the \fBunicode\fR member of the \fI\fBSDL_keysym\fR\fR structure will then contain the corresponding character code, or zero for keysyms that do not correspond to any character code\&. .PP A value of 1 for \fBenable\fR enables Unicode translation; 0 disables it, and -1 leaves it unchanged (useful for querying the current translation mode)\&. .PP Note that only key press events will be translated, not release events\&. .SH "RETURN VALUE" .PP Returns the previous translation mode (\fB0\fR or \fB1\fR)\&. .SH "SEE ALSO" .PP \fI\fBSDL_keysym\fR\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59