view src/events/SDL_events_c.h @ 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 c121d94672cb
children 99210400e8b9
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

/* Useful functions and variables from SDL_events.c */
#include "SDL_events.h"
#include "SDL_mouse_c.h"
#include "SDL_keyboard_c.h"
#include "SDL_windowevents_c.h"

/* Start and stop the event processing loop */
extern int SDL_StartEventLoop(Uint32 flags);
extern void SDL_StopEventLoop(void);
extern void SDL_QuitInterrupt(void);

extern void SDL_Lock_EventThread(void);
extern void SDL_Unlock_EventThread(void);
extern Uint32 SDL_EventThreadID(void);

extern int SDL_SendSysWMEvent(SDL_SysWMmsg * message);

extern int SDL_QuitInit(void);
extern int SDL_SendQuit(void);
extern void SDL_QuitQuit(void);

/* The event filter function */
extern SDL_EventFilter SDL_EventOK;
extern void *SDL_EventOKParam;

/* The array of event processing states */
extern Uint8 SDL_ProcessEvents[SDL_NUMEVENTS];

/* vi: set ts=4 sw=4 expandtab: */