src/timer/SDL_timer_c.h
author Ryan C. Gordon <icculus@icculus.org>
Tue, 27 Sep 2005 12:14:17 +0000
changeset 1147 b580f7201543
parent 252 e8157fcb3114
child 1312 c9b51268668f
permissions -rw-r--r--
From: "Alex Volkov" <avcp-sdlmail@usa.net>
To: "'A list for developers using the SDL library. \(includesSDL-announce\)'" <sdl@libsdl.org>
Date: Mon, 19 Sep 2005 18:59:43 -0400
Subject: [SDL] [patch] Volume multiplier bug in

The volume multiplier in SDL_MixAudio_MMX_S8() is formed from the wrong
register.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997, 1998  Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     5635-34 Springhouse Dr.
    21     Pleasanton, CA 94588 (USA)
    22     slouken@libsdl.org
    23 */
    24 
    25 #ifdef SAVE_RCSID
    26 static char rcsid =
    27  "@(#) $Id$";
    28 #endif
    29 
    30 /* Useful functions and variables from SDL_timer.c */
    31 #include "SDL_timer.h"
    32 
    33 #define ROUND_RESOLUTION(X)	\
    34 	(((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION)
    35 
    36 extern int SDL_timer_started;
    37 extern int SDL_timer_running;
    38 
    39 /* Data to handle a single periodic alarm */
    40 extern Uint32 SDL_alarm_interval;
    41 extern SDL_TimerCallback SDL_alarm_callback;
    42 
    43 /* Set whether or not the timer should use a thread.
    44    This should be called while the timer subsystem is running.
    45 */
    46 extern int SDL_SetTimerThreaded(int value);
    47 
    48 extern int SDL_TimerInit(void);
    49 extern void SDL_TimerQuit(void);
    50 
    51 /* This function is called from the SDL event thread if it is available */
    52 extern void SDL_ThreadedTimerCheck(void);