redclash: add player shoot sample

src/devices/sound/samples.cpp

@@ -2,23 +2,21 @@
 // copyright-holders:Aaron Giles
 /***************************************************************************
 
-    samples.c
-
     Sound device for sample playback.
 
 ****************************************************************************
 
-    Playback of pre-recorded samples. Used for high-level simulation of
-    discrete sound circuits where proper low-level simulation isn't
-    available.  Also used for tape loops and similar.
+Playback of pre-recorded samples. Used for high-level simulation of discrete
+sound circuits where proper low-level simulation isn't available. Also used
+for tape loops and similar.
 
-    Current limitations
-      - Only supports single channel samples!
-
-    Considerations
-      - Maybe this should be part of the presentation layer
-        (artwork etc.) with samples specified in .lay files instead of
-        in drivers?
+TODO:
+- Only supports single channel samples!
+- When mame.ini samplerate is close to the loaded sample(s) samplerate,
+  (eg. 48000, with 44100Hz samples), things can sound quite bad. This is
+  more an issue in sound.cpp resampler, not this device.
+- Maybe this should be part of the presentation layer (artwork etc.)
+  with samples specified in .lay files instead of in drivers?
 
 ***************************************************************************/
 

src/devices/sound/samples.h

@@ -2,8 +2,6 @@
 // copyright-holders:Aaron Giles
 /***************************************************************************
 
-    samples.h
-
     Sound device for sample playback.
 
 ***************************************************************************/

src/mame/universal/zerohour.cpp

@@ -17,9 +17,11 @@ TODO:
   scrolling at the same speed as the stars, it's used in canyon parts and during the
   big ufo explosion
 - redclash canyon level, a gap sometimes appears on the right side, maybe BTANB
-- replace zerohour samples with netlist audio (schematics available)
-- zerohour should play a beep when an orange asteroid is shot, missing sample?
-- add redclash samples or netlist audio (eg. player shot sound, explosions)
+- replace samples with netlist audio (schematics available for zerohour)
+- zerohour should play a beep when an orange asteroid is shot (not sure if it's
+  worth simulating this, netlist would auto solve this problem)
+- does redclash have more triggered sounds? according to a pcb video, it only
+  has the player shot sound, no explosions (not counting the beeper)
 - redclash beeper frequency range should be higher, but it can't be solved with a
   simple multiply calculation. Besides, anything more than right now and ears will
   be destroyed, so maybe the sound is softer(filtered)
@@ -101,10 +103,11 @@ protected:
 	required_device<palette_device> m_palette;
 	required_device<gfxdecode_device> m_gfxdecode;
 	required_device<zerohour_stars_device> m_stars;
-	optional_device<samples_device> m_samples;
+	required_device<samples_device> m_samples;
 
 	tilemap_t *m_fg_tilemap = nullptr;
 	int m_sound_on = 0;
+	int m_sample_asteroid = 0;
 	int m_gfxbank = 0; // redclash only
 };
 
@@ -129,6 +132,7 @@ private:
 	DECLARE_WRITE_LINE_MEMBER(gfxbank_w);
 	void background_w(u8 data);
 	void beeper_w(u8 data);
+	DECLARE_WRITE_LINE_MEMBER(redclash_sample_w);
 
 	void redclash_map(address_map &map);
 
@@ -155,6 +159,7 @@ void zerohour_state::init_zerohour()
 void zerohour_state::machine_start()
 {
 	save_item(NAME(m_sound_on));
+	save_item(NAME(m_sample_asteroid));
 }
 
 void redclash_state::machine_start()
@@ -438,16 +443,23 @@ u32 redclash_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, c
 static const char *const zerohour_sample_names[] =
 {
 	"*zerohour",
-	"zh0",
-	"zh1",
-	"zh2",
-	"zh3",
-	"zh4",
-	"zh5",
-	"zh6",
-	"zh7",
-	"zh8",
-	"zh9",
+	"shoot",
+	"asteroid_hit_1",
+	"asteroid_hit_2",
+	"enemy_descend",
+	"shield_hit",
+	"player_dies",
+	"enemy_fire",
+	"bonus_warn",
+	"thrust",
+	"coin",
+	nullptr
+};
+
+static const char *const redclash_sample_names[] =
+{
+	"*redclash",
+	"shoot",
 	nullptr
 };
 
@@ -467,14 +479,37 @@ WRITE_LINE_MEMBER(redclash_state::sound_enable_w)
 
 template <unsigned N> WRITE_LINE_MEMBER(zerohour_state::sample_w)
 {
+	int sample = N;
+
+	// asteroid hit sample alternates on each trigger
+	if (state && N == 1)
+	{
+		sample += m_sample_asteroid & 1;
+		m_sample_asteroid ^= 1;
+	}
+
+	// trigger 2 appears to be a modifier for asteroid hit, white noise is masked with pulse wave
+	if (N == 2)
+	{
+		// TODO
+		return;
+	}
+
 	if (m_sound_on && state)
-		m_samples->start(N, N);
+		m_samples->start(N, sample);
 
 	// thrust sound is level-triggered
 	else if (N == 8)
 		m_samples->stop(N);
 }
 
+WRITE_LINE_MEMBER(redclash_state::redclash_sample_w)
+{
+	// only one sample
+	if (m_sound_on && state)
+		m_samples->start(0, 0);
+}
+
 void redclash_state::beeper_w(u8 data)
 {
 	// beeper frequency (0xff is off), preliminary
@@ -820,14 +855,20 @@ void redclash_state::redclash(machine_config &config)
 	m_stars->has_va_bit(false);
 
 	// sound hardware
+	m_outlatch[0]->q_out_cb<0>().set(FUNC(redclash_state::redclash_sample_w));
 	m_outlatch[1]->q_out_cb<2>().set(FUNC(redclash_state::sound_enable_w));
 
 	SPEAKER(config, "mono").front_center();
-	SPEAKER_SOUND(config, m_beep).add_route(ALL_OUTPUTS, "mono", 0.25);
+	SPEAKER_SOUND(config, m_beep).add_route(ALL_OUTPUTS, "mono", 0.2);
 
 	CLOCK(config, m_beep_clock, 0);
 	m_beep_clock->signal_handler().set(m_beep, FUNC(speaker_sound_device::level_w));
-	m_beep_clock->set_duty_cycle(0.25);
+	m_beep_clock->set_duty_cycle(0.2);
+
+	SAMPLES(config, m_samples);
+	m_samples->set_channels(1);
+	m_samples->set_samples_names(redclash_sample_names);
+	m_samples->add_route(ALL_OUTPUTS, "mono", 0.5);
 }