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/*
* Depth Charge audio routines
*/
#include "driver.h"
#include "sound/samples.h"
#include "includes/vicdual.h"
/* output port 0x01 definitions - sound effect drive outputs */
#define OUT_PORT_1_LONGEXPL 0x01
#define OUT_PORT_1_SHRTEXPL 0x02
#define OUT_PORT_1_SPRAY 0x04
#define OUT_PORT_1_SONAR 0x08
#define PLAY(id,loop) sample_start( id, id, loop )
#define STOP(id) sample_stop( id )
/* sample file names */
static const char *depthch_sample_names[] =
{
"*depthch",
"longex.wav",
"shortex.wav",
"spray.wav",
"sonar.wav",
0
};
static struct Samplesinterface depthch_samples_interface =
{
4,
depthch_sample_names
};
MACHINE_DRIVER_START( depthch_audio )
MDRV_SOUND_ADD(SAMPLES, 0)
MDRV_SOUND_CONFIG(depthch_samples_interface)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
MACHINE_DRIVER_END
/* sample IDs - must match sample file name table above */
enum
{
SND_LONGEXPL = 0,
SND_SHRTEXPL,
SND_SPRAY,
SND_SONAR,
};
WRITE8_HANDLER( depthch_audio_w )
{
static int port1State = 0;
int bitsChanged;
int bitsGoneHigh;
int bitsGoneLow;
bitsChanged = port1State ^ data;
bitsGoneHigh = bitsChanged & data;
bitsGoneLow = bitsChanged & ~data;
port1State = data;
if ( bitsGoneHigh & OUT_PORT_1_LONGEXPL )
{
PLAY( SND_LONGEXPL, 0 );
}
if ( bitsGoneHigh & OUT_PORT_1_SHRTEXPL )
{
PLAY( SND_SHRTEXPL, 0 );
}
if ( bitsGoneHigh & OUT_PORT_1_SPRAY )
{
PLAY( SND_SPRAY, 0 );
}
if ( bitsGoneHigh & OUT_PORT_1_SONAR )
{
PLAY( SND_SONAR, 1 );
}
if ( bitsGoneLow & OUT_PORT_1_SONAR )
{
STOP( SND_SONAR );
}
}
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