Mercurial > sdl-ios-xcode
view docs/man3/SDL_InitSubSystem.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_InitSubSystem" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_InitSubSystem\- Initialize subsystems .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_InitSubSystem\fP\fR(\fBUint32 flags\fR); .SH "DESCRIPTION" .PP After SDL has been initialized with \fI\fBSDL_Init\fP\fR you may initialize uninitialized subsystems with \fBSDL_InitSubSystem\fP\&. The \fBflags\fR parameter is the same as that used in \fI\fBSDL_Init\fP\fR\&. .SH "EXAMPLES" .PP .nf \f(CW/* Seperating Joystick and Video initialization\&. */ SDL_Init(SDL_INIT_VIDEO); \&. \&. SDL_SetVideoMode(640, 480, 16, SDL_DOUBLEBUF|SDL_FULLSCREEN); \&. /* Do Some Video stuff */ \&. \&. /* Initialize the joystick subsystem */ SDL_InitSubSystem(SDL_INIT_JOYSTICK); /* Do some stuff with video and joystick */ \&. \&. \&. /* Shut them both down */ SDL_Quit();\fR .fi .PP .SH "RETURN VALUE" .PP Returns \fB-1\fR on an error or \fB0\fR on success\&. .SH "SEE ALSO" .PP \fI\fBSDL_Init\fP\fR, \fI\fBSDL_Quit\fP\fR, \fI\fBSDL_QuitSubSystem\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00