// license:BSD-3-Clause
// copyright-holders:Zsolt Vasvari
/*
* Depth Charge audio routines
*/
#include "emu.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(samp,id,loop) samp->start( id, id, loop )
#define STOP(samp,id) samp->stop( id )
/* sample file names */
static const char *const depthch_sample_names[] =
{
"*depthch",
"longex",
"shortex",
"spray",
"bonus",
"sonar",
nullptr
};
/* sample IDs - must match sample file name table above */
enum
{
SND_LONGEXPL = 0,
SND_SHRTEXPL,
SND_SPRAY,
SND_BONUS,
SND_SONAR
};
WRITE8_MEMBER( vicdual_state::depthch_audio_w )
{
int bitsChanged;
int bitsGoneHigh;
int bitsGoneLow;
bitsChanged = m_port1State ^ data;
bitsGoneHigh = bitsChanged & data;
bitsGoneLow = bitsChanged & ~data;
m_port1State = data;
if ( bitsGoneHigh & OUT_PORT_1_LONGEXPL )
{
PLAY( m_samples, SND_LONGEXPL, 0 );
}
if ( bitsGoneHigh & OUT_PORT_1_SHRTEXPL )
{
PLAY( m_samples, SND_SHRTEXPL, 0 );
}
if ( bitsGoneHigh & OUT_PORT_1_SPRAY )
{
PLAY( m_samples, SND_SPRAY, 0 );
}
if ( bitsGoneHigh & OUT_PORT_1_SONAR )
{
PLAY( m_samples, SND_SONAR, 1 );
}
if ( bitsGoneLow & OUT_PORT_1_SONAR )
{
STOP( m_samples, SND_SONAR );
// bonus sound on same line as sonar
PLAY( m_samples, SND_BONUS, 0 );
}
}
void vicdual_state::depthch_audio(machine_config &config)
{
/* samples */
SAMPLES(config, m_samples);
m_samples->set_channels(5);
m_samples->set_samples_names(depthch_sample_names);
m_samples->add_route(ALL_OUTPUTS, "mono", 0.5);
}