/usr/share/doc/libplib-doc/examples/sl/example.cxx is in libplib-doc 1:1.8.5-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | /*
PLIB - A Suite of Portable Game Libraries
Copyright (C) 2001 Steve Baker
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
For further information visit http://plib.sourceforge.net
$Id: example.cxx 1551 2002-09-01 12:04:53Z ude $
*/
#include <plib/sl.h>
#include <plib/sm.h>
#include <math.h>
/*
Construct a sound scheduler and a mixer.
*/
slScheduler sched ( 8000 ) ;
smMixer mixer ( "/dev/mixer" ) ;
#ifndef M_PI
#define EX_PI 3.1415926535
#else
#define EX_PI M_PI
#endif
int main ( int, char ** )
{
mixer . setMasterVolume ( 100 ) ;
sched . setSafetyMargin ( 0.128f ) ;
/* Just for fun, let's make a one second synthetic engine sample... */
Uchar buffer [ 8000 ] ;
for ( int i = 0 ; i < 8000 ; i++ )
{
/* Sum some sin waves and convert to range 0..1 */
float level = (float)( sin ( (double) i * 2.0 * EX_PI / (8000.0/ 50.0) ) +
sin ( (double) i * 2.0 * EX_PI / (8000.0/149.0) ) +
sin ( (double) i * 2.0 * EX_PI / (8000.0/152.0) ) +
sin ( (double) i * 2.0 * EX_PI / (8000.0/192.0) )
) / 8.0f + 0.5f ;
/* Convert to unsigned byte */
buffer [ i ] = (Uchar) ( level * 255.0f ) ;
}
/* Set up four samples and a loop */
slSample *s = new slSample ( buffer, 8000 ) ;
slSample *s1 = new slSample ( "scream.ub", & sched ) ;
slSample *s2 = new slSample ( "zzap.wav" , & sched ) ;
slSample *s3 = new slSample ( "cuckoo.au", & sched ) ;
slSample *s4 = new slSample ( "wheeee.ub", & sched ) ;
/* Mess about with some of the samples... */
s1 -> adjustVolume ( 10.0f ) ;
s2 -> adjustVolume ( 0.5f ) ;
s3 -> adjustVolume ( 0.2f ) ;
s3 -> adjustVolume ( 0.3f ) ;
/* Play the engine sample continuously. */
sched . loopSample ( s ) ;
sched . loopSample ( s4 ) ;
int tim = 0 ; /* My periodic event timer. */
while ( SL_TRUE )
{
tim++ ; /* Time passes */
if ( tim % 140 == 0 ) sched.playSample ( s1 ) ;
/*
For the sake of realism, I'll delay for 1/30th second to
simulate a graphics update process.
*/
#ifdef WIN32
Sleep ( 1000 / 30 ) ; /* 30Hz */
#elif defined(sgi)
sginap( 3 ); /* ARG */
#else
usleep ( 1000000 / 30 ) ; /* 30Hz */
#endif
/*
This would normally be called just before the graphics buffer swap
- but it could be anywhere where it's guaranteed to get called
fairly often.
*/
sched . update () ;
}
return 0 ;
}
|