sound:

move positions to osd interface
  add special-casing for LFE
  add reverb (currently too subtle, need to find out why)

vgm_visualizer: stop going OOB on the bitmap

scripts/src/mame/frontend.lua

@@ -99,6 +99,8 @@ files {
 	MAME_DIR .. "src/frontend/mame/ui/audio_effect_eq.h",
 	MAME_DIR .. "src/frontend/mame/ui/audio_effect_filter.cpp",
 	MAME_DIR .. "src/frontend/mame/ui/audio_effect_filter.h",
+	MAME_DIR .. "src/frontend/mame/ui/audio_effect_reverb.cpp",
+	MAME_DIR .. "src/frontend/mame/ui/audio_effect_reverb.h",
 	MAME_DIR .. "src/frontend/mame/ui/auditmenu.cpp",
 	MAME_DIR .. "src/frontend/mame/ui/auditmenu.h",
 	MAME_DIR .. "src/frontend/mame/ui/barcode.cpp",

scripts/src/osd/modules.lua

@@ -52,6 +52,7 @@ function osdmodulesbuild()
 	files {
 		MAME_DIR .. "src/osd/watchdog.cpp",
 		MAME_DIR .. "src/osd/watchdog.h",
+		MAME_DIR .. "src/osd/interface/audio.cpp",
 		MAME_DIR .. "src/osd/interface/audio.h",
 		MAME_DIR .. "src/osd/interface/inputcode.h",
 		MAME_DIR .. "src/osd/interface/inputdev.h",

src/devices/sound/vgm_visualizer.cpp

@@ -739,7 +739,7 @@ void vgmviz_device::draw_waveform(bitmap_rgb32 &bitmap)
 		bitmap.pix(CHANNEL_HEIGHT + 1 + CHANNEL_CENTER, x) = MED_GRAY;
 
 		const float raw_l = m_audio_buf[1 - m_audio_fill_index][0][((int)m_history_length + 1 + x) % FFT_LENGTH];
-		const int sample_l = (int)((raw_l - 0.5f) * (CHANNEL_HEIGHT - 1));
+		const int sample_l = std::clamp((int)((raw_l - 0.5f) * (CHANNEL_HEIGHT - 1)), -CHANNEL_CENTER, CHANNEL_CENTER);
 		const int dy_l = (sample_l == 0) ? 0 : ((sample_l < 0) ? -1 : 1);
 		const int endy_l = CHANNEL_CENTER;
 		int y = endy_l - sample_l;
@@ -750,7 +750,7 @@ void vgmviz_device::draw_waveform(bitmap_rgb32 &bitmap)
 		} while(y != endy_l);
 
 		const float raw_r = m_audio_buf[1 - m_audio_fill_index][1][((int)m_history_length + 1 + x) % FFT_LENGTH];
-		const int sample_r = (int)((raw_r - 0.5f) * (CHANNEL_HEIGHT - 1));
+		const int sample_r = std::clamp((int)((raw_r - 0.5f) * (CHANNEL_HEIGHT - 1)), -CHANNEL_CENTER, CHANNEL_CENTER);
 		const int dy_r = (sample_r == 0) ? 0 : ((sample_r < 0) ? -1 : 1);
 		const int endy_r = CHANNEL_HEIGHT + 1 + CHANNEL_CENTER;
 		y = endy_r - sample_r;

src/emu/audio_effects/aeffect.cpp

@@ -15,13 +15,13 @@ const char *const audio_effect::effect_names[COUNT] = {
 	"Equalizer"
 };
 
-audio_effect *audio_effect::create(int type, u32 sample_rate, audio_effect *def)
+audio_effect *audio_effect::create(int type, speaker_device *speaker, u32 sample_rate, audio_effect *def)
 {
 	switch(type) {
-	case FILTER:     return new audio_effect_filter    (sample_rate, def);
-	case COMPRESSOR: return new audio_effect_compressor(sample_rate, def);
-	case REVERB:     return new audio_effect_reverb    (sample_rate, def);
-	case EQ:         return new audio_effect_eq        (sample_rate, def);
+	case FILTER:     return new audio_effect_filter    (speaker, sample_rate, def);
+	case COMPRESSOR: return new audio_effect_compressor(speaker, sample_rate, def);
+	case REVERB:     return new audio_effect_reverb    (speaker, sample_rate, def);
+	case EQ:         return new audio_effect_eq        (speaker, sample_rate, def);
 	}
 	return nullptr;
 }
@@ -31,8 +31,7 @@ void audio_effect::copy(const emu::detail::output_buffer_flat<sample_t> &src, em
 {
 	u32 samples = src.available_samples();
 	dest.prepare_space(samples);
-	u32 channels = src.channels();
-	for(u32 channel = 0; channel != channels; channel++) {
+	for(u32 channel = 0; channel != m_channels; channel++) {
 		const sample_t *srcd = src.ptrs(channel, 0);
 		sample_t *destd = dest.ptrw(channel, 0);
 		std::copy(srcd, srcd + samples, destd);

src/emu/audio_effects/aeffect.h

@@ -6,6 +6,8 @@
 #ifndef MAME_EMU_AUDIO_EFFECTS_AEFFECT_H
 #define MAME_EMU_AUDIO_EFFECTS_AEFFECT_H
 
+#include "speaker.h"
+
 class audio_effect
 {
 public:
@@ -21,9 +23,9 @@ public:
 
 	static const char *const effect_names[COUNT];
 
-	static audio_effect *create(int type, u32 sample_rate, audio_effect *def = nullptr);
+	static audio_effect *create(int type, speaker_device *speaker, u32 sample_rate, audio_effect *def = nullptr);
 
-	audio_effect(u32 sample_rate, audio_effect *def) : m_default(def), m_sample_rate(sample_rate) {}
+	audio_effect(speaker_device *speaker, u32 sample_rate, audio_effect *def) : m_default(def), m_speaker(speaker), m_channels(speaker ? speaker->channels() : 0), m_sample_rate(sample_rate) {}
 	virtual ~audio_effect() = default;
 
 	void copy(const emu::detail::output_buffer_flat<sample_t> &src, emu::detail::output_buffer_flat<sample_t> &dest) const;
@@ -37,7 +39,8 @@ public:
 
 protected:
 	audio_effect *m_default;
-	u32 m_sample_rate;
+	speaker_device *m_speaker;
+	u32 m_channels, m_sample_rate;
 };
 
 #endif

src/emu/audio_effects/compressor.cpp

@@ -7,8 +7,15 @@
 #include "compressor.h"
 #include "xmlfile.h"
 
-audio_effect_compressor::audio_effect_compressor(u32 sample_rate, audio_effect *def) : audio_effect(sample_rate, def)
+audio_effect_compressor::audio_effect_compressor(speaker_device *speaker, u32 sample_rate, audio_effect *def) :
+	audio_effect(speaker, sample_rate, def)
 {
+	m_slewed_signal.resize(m_channels, -200);
+	m_gain_reduction.resize(m_channels, 0);
+	m_input_samples.resize(m_channels, 0);
+	m_output_samples.resize(m_channels, 0);
+	m_inertia_velocity.resize(m_channels, 0);
+
 	reset_mode();
 	reset_attack();
 	reset_release();
@@ -362,23 +369,14 @@ void audio_effect_compressor::apply(const emu::detail::output_buffer_flat<sample
 	}
 
 	u32 samples = src.available_samples();
-	u32 channels = src.channels();
 	dest.prepare_space(samples);
 
-	if(m_slewed_signal.empty()) {
-		m_slewed_signal.resize(channels, -200);
-		m_gain_reduction.resize(channels, 0);
-		m_input_samples.resize(channels, 0);
-		m_output_samples.resize(channels, 0);
-		m_inertia_velocity.resize(channels, 0);
-	}
-
 	double attack_coefficient = exp(-1/(m_sample_rate * m_attack / 1000));
 	double release_coefficient = exp(-1/(m_sample_rate * m_release / 1000));
 	double m_inertia_decay_coefficient = 0.99 + m_inertia_decay * 0.01;
 
 	for(u32 sample = 0; sample != samples; sample ++) {
-		for(u32 channel = 0; channel != channels; channel ++) {
+		for(u32 channel = 0; channel != m_channels; channel ++) {
 			double input_db = value_to_db(std::abs(*src.ptrs(channel, sample))) + m_input_gain + std::abs(m_output_samples[channel]) * m_feedback;
 			m_output_samples[channel] = 0;
 
@@ -432,11 +430,11 @@ void audio_effect_compressor::apply(const emu::detail::output_buffer_flat<sample
 		}
 
 		double max_gain = m_gain_reduction[0];
-		for(u32 channel = 1; channel < channels; channel++)
+		for(u32 channel = 1; channel != m_channels; channel++)
 			if(m_gain_reduction[channel] > max_gain)
 				max_gain = m_gain_reduction[channel];
 
-		for(u32 channel = 0; channel != channels; channel ++) {
+		for(u32 channel = 0; channel != m_channels; channel ++) {
 			m_gain_reduction[channel] = max_gain * m_channel_link + m_gain_reduction[channel] * (1 - m_channel_link);
 			double output_sample = db_to_value(m_input_samples[channel] - m_gain_reduction[channel]);
 			if(*src.ptrs(channel, sample) < 0)

src/emu/audio_effects/compressor.h

@@ -11,7 +11,7 @@
 class audio_effect_compressor : public audio_effect
 {
 public:
-	audio_effect_compressor(u32 sample_rate, audio_effect *def);
+	audio_effect_compressor(speaker_device *speaker, u32 sample_rate, audio_effect *def);
 	virtual ~audio_effect_compressor() = default;
 
 	virtual int type() const override { return COMPRESSOR; }

src/emu/audio_effects/eq.cpp

@@ -12,8 +12,11 @@
 // [Zölzer 2011] "DAFX: Digital Audio Effects", Udo Zölzer, Second Edition, Wiley publishing, 2011 (Tables 2.3 and 2.4)
 // [Zölzer 2008] "Digital Audio Signal Processing", Udo Zölzer, Second Edition, Wiley publishing, 2008 (Tables 5.3, 5.4 and 5.5)
 
-audio_effect_eq::audio_effect_eq(u32 sample_rate, audio_effect *def) : audio_effect(sample_rate, def)
+audio_effect_eq::audio_effect_eq(speaker_device *speaker, u32 sample_rate, audio_effect *def) :
+	audio_effect(speaker, sample_rate, def)
 {
+	m_history.resize(m_channels);
+
 	// Minimal init to avoid using uninitialized values when reset_*
 	// recomputes filters
 
@@ -322,11 +325,8 @@ void audio_effect_eq::apply(const emu::detail::output_buffer_flat<sample_t> &src
 
 	u32 samples = src.available_samples();
 	dest.prepare_space(samples);
-	u32 channels = src.channels();
-	if(m_history.empty())
-		m_history.resize(channels);
 
-	for(u32 channel = 0; channel != channels; channel++) {
+	for(u32 channel = 0; channel != m_channels; channel++) {
 		const sample_t *srcd = src.ptrs(channel, 0);
 		sample_t *destd = dest.ptrw(channel, 0);
 		for(u32 sample = 0; sample != samples; sample++) {

src/emu/audio_effects/eq.h

@@ -13,7 +13,7 @@ class audio_effect_eq : public audio_effect
 public:
 	enum { BANDS = 5 };
 
-	audio_effect_eq(u32 sample_rate, audio_effect *def);
+	audio_effect_eq(speaker_device *speaker, u32 sample_rate, audio_effect *def);
 	virtual ~audio_effect_eq() = default;
 
 	virtual int type() const override { return EQ; }

src/emu/audio_effects/filter.cpp

@@ -13,8 +13,11 @@
 // [Zölzer 2011] "DAFX: Digital Audio Effects", Udo Zölzer, Second Edition, Wiley publishing, 2011 (Table 2.2)
 
 
-audio_effect_filter::audio_effect_filter(u32 sample_rate, audio_effect *def) : audio_effect(sample_rate, def)
+audio_effect_filter::audio_effect_filter(speaker_device *speaker, u32 sample_rate, audio_effect *def) :
+	audio_effect(speaker, sample_rate, def)
 {
+	m_history.resize(m_channels);
+
 	// Minimal init to avoid using uninitialized values when reset_*
 	// recomputes filters
 	m_fl = m_fh = 1000;
@@ -159,11 +162,8 @@ void audio_effect_filter::apply(const emu::detail::output_buffer_flat<sample_t>
 
 	u32 samples = src.available_samples();
 	dest.prepare_space(samples);
-	u32 channels = src.channels();
-	if(m_history.empty())
-		m_history.resize(channels);
 
-	for(u32 channel = 0; channel != channels; channel++) {
+	for(u32 channel = 0; channel != m_channels; channel++) {
 		const sample_t *srcd = src.ptrs(channel, 0);
 		sample_t *destd = dest.ptrw(channel, 0);
 		for(u32 sample = 0; sample != samples; sample++) {

src/emu/audio_effects/filter.h

@@ -11,7 +11,7 @@
 class audio_effect_filter : public audio_effect
 {
 public:
-	audio_effect_filter(u32 sample_rate, audio_effect *def);
+	audio_effect_filter(speaker_device *speaker, u32 sample_rate, audio_effect *def);
 	virtual ~audio_effect_filter() = default;
 
 	virtual int type() const override { return FILTER; }

src/emu/audio_effects/reverb.h

@@ -8,10 +8,12 @@
 
 #include "aeffect.h"
 
+#include <random>
+
 class audio_effect_reverb : public audio_effect
 {
 public:
-	audio_effect_reverb(u32 sample_rate, audio_effect *def);
+	audio_effect_reverb(speaker_device *speaker, u32 sample_rate, audio_effect *def);
 	virtual ~audio_effect_reverb() = default;
 
 	virtual int type() const override { return REVERB; }
@@ -19,6 +21,420 @@ public:
 	virtual void config_load(util::xml::data_node const *ef_node) override;
 	virtual void config_save(util::xml::data_node *ef_node) const override;
 	virtual void default_changed() override;
+
+	void set_mode(u32 mode);
+	void set_early_tap_setup(u32 index);
+	void set_early_damping(double cutoff);
+	void set_stereo_width(double width);
+	void set_early_room_size(double size);
+	void set_late_room_size(double size);
+	void set_late_spin(double speed);
+	void set_late_wander(double wander);
+	void set_late_diffusion(double value);
+	void set_late_damping(double cutoff);
+	void set_late_predelay(double delay);
+	void set_late_global_decay(float value);
+	void set_dry_level(double level);
+	void set_early_level(double level);
+	void set_late_level(double level);
+	void set_early_to_late_level(double level);
+
+	u32    mode() const                { return m_mode; }
+	u32    early_tap_setup() const     { return m_early_tap_setup; }
+	double early_damping() const       { return m_early_damping; }
+	double stereo_width() const        { return m_stereo_width; }
+	double early_room_size() const     { return m_early_room_size; }
+	double late_room_size() const      { return m_late_room_size; }
+	double late_spin() const           { return m_late_spin; }
+	double late_wander() const         { return m_late_wander; }
+	double late_diffusion() const      { return m_late_diffusion; }
+	double late_damping() const        { return m_late_damping; }
+	double late_predelay() const       { return m_late_predelay; }
+	float  late_global_decay() const   { return m_late_global_decay; }
+	double dry_level() const           { return m_dry_level; }
+	double early_level() const         { return m_early_level; }
+	double late_level() const          { return m_late_level; }
+	double early_to_late_level() const { return m_early_to_late_level; }
+
+	bool isset_mode() const                { return m_isset_mode; }
+	bool isset_early_tap_setup() const     { return m_isset_early_tap_setup; }
+	bool isset_early_damping() const       { return m_isset_early_damping; }
+	bool isset_stereo_width() const        { return m_isset_stereo_width; }
+	bool isset_early_room_size() const     { return m_isset_early_room_size; }
+	bool isset_late_room_size() const      { return m_isset_late_room_size; }
+	bool isset_late_spin() const           { return m_isset_late_spin; }
+	bool isset_late_wander() const         { return m_isset_late_wander; }
+	bool isset_late_diffusion() const      { return m_isset_late_diffusion; }
+	bool isset_late_damping() const        { return m_isset_late_damping; }
+	bool isset_late_predelay() const       { return m_isset_late_predelay; }
+	bool isset_late_global_decay() const   { return m_isset_late_global_decay; }
+	bool isset_dry_level() const           { return m_isset_dry_level; }
+	bool isset_early_level() const         { return m_isset_early_level; }
+	bool isset_late_level() const          { return m_isset_late_level; }
+	bool isset_early_to_late_level() const { return m_isset_early_to_late_level; }
+
+	void reset_mode();
+	void reset_early_tap_setup();
+	void reset_early_damping();
+	void reset_stereo_width();
+	void reset_early_room_size();
+	void reset_late_room_size();
+	void reset_late_spin();
+	void reset_late_wander();
+	void reset_late_diffusion();
+	void reset_late_damping();
+	void reset_late_predelay();
+	void reset_late_global_decay();
+	void reset_dry_level();
+	void reset_early_level();
+	void reset_late_level();
+	void reset_early_to_late_level();
+
+	static u32 preset_count();
+	static const char *preset_name(u32 id);
+	static u32 early_tap_setup_count();
+	static const char *early_tap_setup_name(u32 id);
+
+	void load_preset(u32 id);
+
+private:
+	struct preset {
+		const char *name;
+		u32 early_tap_setup;
+		double early_damping;
+		double stereo_width;
+		double early_room_size;
+		double late_room_size;
+		double late_spin;
+		double late_wander;
+		double late_diffusion;
+		double late_damping;
+		double late_predelay;
+		float late_global_decay;
+		double dry_level;
+		double early_level;
+		double late_level;
+		double early_to_late_level;
+	};
+
+	static const preset presets[];
+
+	enum { INPUT_DIFFUSION_ALLPASS = 10, CROSS_DIFFUSION_ALLPASS = 4 };
+
+	struct early_reverb_tap_map {
+		const char *name;
+		u32 m_count[2];
+		float m_delay[2][18];
+		float m_gain[2][18];
+	};
+
+	static const early_reverb_tap_map tap_maps[15];
+
+	struct delay_buffer {
+		enum { D_MASK = 8191 };
+		sample_t m_samples[D_MASK+1];
+		u32 m_index;
+
+		void clear();
+		void push(sample_t value);
+		sample_t get(u32 dist) const;
+		sample_t geti(float dist) const; // Get with interpolation
+		delay_buffer() { clear(); }
+	};
+
+	struct delay {
+		delay_buffer m_delay_buffer;
+		std::vector<u32> m_taps;
+		void clear();
+		void set_tap(u32 tap, u32 dist);
+		void push(sample_t value);
+		sample_t get(u32 tap) const;
+		sample_t process(sample_t value) { push(value); return get(0); }
+		delay() { clear(); }
+	};
+		
+	struct iir1h {
+		sample_t m_y1;
+		void clear();
+		iir1h() { clear(); }
+	};
+
+	struct iir1 {
+		float m_a2, m_b1, m_b2;
+		sample_t process(iir1h &h, sample_t x0);
+		void prepare_lpf(double cutoff, u32 sample_rate);
+		void prepare_hpf(double cutoff, u32 sample_rate);
+	};
+
+	struct iir2h {
+		sample_t m_x1, m_x2, m_y1, m_y2;
+		void clear();
+		iir2h() { clear(); }
+	};
+
+	struct iir2 {
+		float m_a1, m_a2, m_b0, m_b1, m_b2;
+		sample_t process(iir2h &h, sample_t x0);
+		void prepare_lpf(double cutoff, double bw, u32 sample_rate);
+		void prepare_apf(double cutoff, double bw, u32 sample_rate);
+	};
+
+	struct dccuth {
+		float m_y1, m_y2;
+		void clear();
+		dccuth() { clear(); }
+	};
+
+	struct dccut {
+		float m_gain;
+		sample_t process(dccuth &h, sample_t x0);
+		void prepare(double cutoff, u32 sample_rate);
+	};
+
+	struct pink {
+		enum { SIZE = 1 << 15 };
+		std::mt19937 m_rng;
+		std::uniform_real_distribution<sample_t> m_dis;
+		sample_t m_buffer[SIZE];
+		u32 m_index;
+
+		void clear();
+		pink() : m_rng(std::random_device()()), m_dis(-1, 1) { clear(); }
+		sample_t process();
+	};
+
+	struct lfo {
+		float m_c, m_s, m_rc, m_rs;
+		u32 m_count;
+
+		void clear();
+		lfo() : m_rc(1), m_rs(0) { clear(); }
+		void prepare(double speed, u32 sample_rate);
+		float process();
+	};
+
+	struct allpass {
+		delay_buffer m_delay_buffer;
+		float m_gain;
+		u32 m_delay;
+
+		void clear();
+		sample_t process(sample_t input);
+		void set_gain(float base);
+		void set_delay(u32 base);
+		allpass() { clear(); }
+	};
+
+	struct allpass_m {
+		delay_buffer m_delay_buffer;
+		float m_base_gain;
+		float m_base_delay, m_mod_delay;
+
+		void clear();
+		sample_t process(sample_t input, float delay_mod, float gain_mod);
+		void set_gain(float base);
+		void set_delay(float base, float mod);
+		allpass_m() { clear(); }
+	};
+
+	struct allpass_md {
+		delay_buffer m_delay_buffer;
+		float m_base_gain, m_decay;
+		float m_base_delay, m_mod_delay;
+
+		void clear();
+		sample_t process(sample_t input, float delay_mod, float gain_mod);
+		void set_gain(float base);
+		void set_delay(float base, float mod);
+		void set_decay(float base);
+		allpass_md() { clear(); }
+	};
+
+	struct allpass2 {
+		delay_buffer m_delay_buffer_1, m_delay_buffer_2;
+		float m_gain_1, m_gain_2, m_decay_1, m_decay_2;
+		u32 m_delay_1, m_delay_2;
+		std::vector<u32> m_taps_1, m_taps_2;
+
+		void clear();
+		sample_t process(sample_t input);
+		void set_gain_1(float base);
+		void set_gain_2(float base);
+		void set_delays(u32 base_1, u32 base_2);
+		void set_decay_1(float base);
+		void set_decay_2(float base);
+		void set_tap_1(u32 tap, u32 dist);
+		void set_tap_2(u32 tap, u32 dist);
+		sample_t get_1(u32 tap) const;
+		sample_t get_2(u32 tap) const;
+		allpass2() { clear(); }
+	};
+
+	struct allpass3m {
+		delay_buffer m_delay_buffer_1, m_delay_buffer_2, m_delay_buffer_3;
+		float m_gain_1, m_gain_2, m_gain_3, m_decay_1, m_decay_2, m_decay_3;
+		u32 m_base_delay_1, m_mod_delay_1, m_delay_2, m_delay_3;
+		std::vector<u32> m_taps_1, m_taps_2, m_taps_3;
+
+		void clear();
+		sample_t process(sample_t input, float delay_mod);
+		void set_gain_1(float base);
+		void set_gain_2(float base);
+		void set_gain_3(float base);
+		void set_delays(u32 base_1, u32 mod_1, u32 base_2, u32 base_3);
+		void set_decay_1(float base);
+		void set_decay_2(float base);
+		void set_decay_3(float base);
+		void set_tap_1(u32 tap, u32 dist);
+		void set_tap_2(u32 tap, u32 dist);
+		void set_tap_3(u32 tap, u32 dist);
+		sample_t get_1(u32 tap) const;
+		sample_t get_2(u32 tap) const;
+		sample_t get_3(u32 tap) const;
+		allpass3m() { clear(); }
+	};
+
+	struct comb {
+		delay_buffer m_delay_buffer;
+		sample_t m_filter_history;
+		u32 m_size;
+
+		void clear();
+		sample_t process(sample_t input, float feedback);
+		void set_size(u32 size);
+		comb() { clear(); }
+	};
+
+	enum ch_type_t { T_MONO, T_LEFT, T_RIGHT };
+
+	u32    m_mode;
+	u32    m_early_tap_setup;
+	double m_early_damping;
+	double m_stereo_width;
+	double m_early_room_size;
+	double m_late_room_size;
+	double m_late_spin;
+	double m_late_wander;
+	double m_late_diffusion;
+	double m_late_damping;
+	double m_late_predelay;
+	float  m_late_global_decay;
+	double m_dry_level;
+	double m_early_level;
+	double m_late_level;
+	double m_early_to_late_level;
+
+	bool m_isset_mode;
+	bool m_isset_early_tap_setup;
+	bool m_isset_early_damping;
+	bool m_isset_stereo_width;
+	bool m_isset_early_room_size;
+	bool m_isset_late_room_size;
+	bool m_isset_late_spin;
+	bool m_isset_late_wander;
+	bool m_isset_late_diffusion;
+	bool m_isset_late_damping;
+	bool m_isset_late_predelay;
+	bool m_isset_late_global_decay;
+	bool m_isset_dry_level;
+	bool m_isset_early_level;
+	bool m_isset_late_level;
+	bool m_isset_early_to_late_level;
+
+
+
+	std::vector<ch_type_t> m_ch_type;
+	std::vector<int> m_ch_pair;
+
+	iir1 m_early_lpf, m_early_hpf;
+	iir2 m_early_diffusion_allpass, m_early_cross_allpass;
+	dccut m_late_dccut;
+	pink m_late_noise;
+	lfo m_late_lfo1, m_late_lfo2;
+	iir1 m_late_lfo1_lpf, m_late_lfo2_lpf, m_late_input_damping, m_late_damping_1;
+	iir2 m_late_bass, m_late_damping_2, m_late_output_lpf;
+
+	std::vector<iir1h> m_early_lpf_h, m_early_hpf_h;
+	std::vector<iir2h> m_early_diffusion_allpass_h, m_early_cross_allpass_h;
+	std::vector<dccuth> m_late_dccut_h;
+	iir1h m_late_lfo1_lpf_h, m_late_lfo2_lpf_h;
+	std::vector<delay_buffer> m_early_delays;
+	std::vector<delay_buffer> m_early_xdelays;
+	std::vector<std::vector<allpass_m>> m_late_input_diffusion;
+	std::vector<std::vector<allpass>> m_late_cross_diffusion;
+	std::vector<iir1h> m_late_input_damping_h, m_late_damping_1_h;
+	std::vector<iir2h> m_late_bass_h, m_late_damping_2_h, m_late_output_lpf_h;
+	std::vector<allpass_md> m_late_step_1, m_late_step_3;
+	std::vector<allpass2> m_late_step_5;
+	std::vector<allpass3m> m_late_step_7;
+	std::vector<delay> m_late_step_2, m_late_step_4, m_late_step_6, m_late_step_8;
+	std::vector<comb> m_late_comb;
+	std::vector<delay> m_late_final_delay;
+
+	std::vector<sample_t> m_early_in, m_early_wet, m_early_out;
+	std::vector<sample_t> m_late_in, m_late_diff, m_late_cross, m_late_cross2, m_late_pre_out, m_late_out;
+
+	float m_wet1, m_wet2;
+	float m_early_room_size_ratio;
+
+	float m_late_room_size_ratio;
+	float m_late_wander_actual;
+	float m_late_modulation_noise_1, m_late_modulation_noise_2;
+	float m_late_crossfeed;
+	float m_late_decay_0, m_late_decay_1, m_late_decay_2, m_late_decay_3, m_late_decay_f;
+	float m_late_loop_decay, m_late_bass_boost;
+
+	float m_actual_dry_level, m_actual_early_level, m_actual_late_level, m_actual_early_to_late_level;
+
+	u32 m_early_tap_dists[2][18];
+	u32 m_early_xdelays_dist;
+
+	const preset *m_default_preset;
+
+	void commit_early_tap_setup();
+	void commit_early_damping();
+	void commit_stereo_width();
+	void commit_early_room_size();
+	void commit_late_room_size();
+	void commit_late_decay();
+	void commit_late_spin();
+	void commit_late_wander();
+	void commit_late_diffusion();
+	void commit_late_damping();
+	void commit_late_predelay();
+	void commit_dry_level();
+	void commit_early_level();
+	void commit_late_level();
+	void commit_early_to_late_level();
+
+	void set_early_hpf(double cutoff);
+	void set_early_diffusion_ap(double cutoff, double bw);
+	void set_early_cross_ap(double cutoff, double bw);
+	void set_early_multichannel_delay(double delay);
+
+	void set_late_dccut(double cutoff);
+	void set_late_spin_limit_1(double cutoff);
+	void set_late_spin_limit_2(double cutoff);
+	void set_late_modulation_noise_1(double mod);
+	void set_late_modulation_noise_2(double mod);
+	void set_late_diffusion_1(double value);
+	void set_late_diffusion_2(double value);
+	void set_late_diffusion_3(double value);
+	void set_late_diffusion_4(double value);
+	void set_late_input_damping(double cutoff);
+	void set_late_damping_2(double cutoff, double bw);
+	void set_late_decay_0(float value);
+	void set_late_decay_1(float value);
+	void set_late_decay_2(float value);
+	void set_late_decay_3(float value);
+	void set_late_decay_f(float value);
+	void set_late_bass_allpass(double cutoff, double bw);
+	void set_late_spin_to_wander(double value);
+
+	static const preset *find_preset(std::string name);
+
+	static bool is_prime(u32 value);
+	static u32 find_prime(u32 v);
 };
 
 #endif

src/emu/sound.cpp

@@ -308,7 +308,8 @@ sound_stream::sound_stream(device_t &device, u32 inputs, u32 outputs, u32 sample
 	m_sync_timer(nullptr),
 	m_callback(std::move(callback))
 {
-	sound_assert(outputs > 0 || inputs > 0);
+	if(inputs == 0 && outputs == 0)
+		fatalerror("Device %s requiring to create a stream without inputs or outputs\n", device.tag());
 
 	// create a name
 	m_name = m_device.name();
@@ -854,7 +855,7 @@ void sound_manager::after_devices_init()
 
 	// Create the default effect chain
 	for(u32 effect = 0; effect != audio_effect::COUNT; effect++)
-		m_default_effects.emplace_back(audio_effect::create(effect, machine().sample_rate(), nullptr));
+		m_default_effects.emplace_back(audio_effect::create(effect, nullptr, machine().sample_rate(), nullptr));
 
 	// Inventory speakers and microphones
 	m_outputs_count = 0;
@@ -862,7 +863,7 @@ void sound_manager::after_devices_init()
 		dev.set_id(m_speakers.size());
 		m_speakers.emplace_back(speaker_info(dev, machine().sample_rate(), m_outputs_count));
 		for(u32 effect = 0; effect != audio_effect::COUNT; effect++)
-			m_speakers.back().m_effects[effect].m_effect.reset(audio_effect::create(effect, machine().sample_rate(), m_default_effects[effect].get()));
+			m_speakers.back().m_effects[effect].m_effect.reset(audio_effect::create(effect, &dev, machine().sample_rate(), m_default_effects[effect].get()));
 		m_outputs_count += dev.inputs();
 	}
 
@@ -1980,17 +1981,24 @@ void sound_manager::generate_mapping()
 
 // Find where to map a sound_io channel into a node's channels depending on their positions
 
-std::vector<u32> sound_manager::find_channel_mapping(const std::array<double, 3> &position, const osd::audio_info::node_info *node)
+std::vector<u32> sound_manager::find_channel_mapping(const osd::channel_position &pos, const osd::audio_info::node_info *node)
 {
 	std::vector<u32> result;
-	if(position[0] == 0 && position[1] == 0 && position[2] == 0)
+	if(pos.is_lfe()) {
+		for(u32 port = 0; port != node->m_port_positions.size(); port++)
+			if(node->m_port_positions[port].is_lfe())
+				result.push_back(port);
 		return result;
+	}
+	if(pos.is_onreq())
+		return result;
+
 	double best_dist = -1;
 	for(u32 port = 0; port != node->m_port_positions.size(); port++)
-		if(sound_io_device::mapping_allowed(node->m_port_positions[port])) {
-			double dx = position[0] - node->m_port_positions[port][0];
-			double dy = position[1] - node->m_port_positions[port][1];
-			double dz = position[2] - node->m_port_positions[port][2];
+		if(!node->m_port_positions[port].is_onreq() && !node->m_port_positions[port].is_lfe()) {
+			double dx = pos.m_x - node->m_port_positions[port].m_z;
+			double dy = pos.m_y - node->m_port_positions[port].m_y;
+			double dz = pos.m_z - node->m_port_positions[port].m_z;
 			double dist = dx*dx + dy*dy + dz*dz;
 			if(best_dist == -1 || dist < best_dist) {
 				best_dist = dist;
@@ -2496,12 +2504,10 @@ void sound_manager::mapping_update()
 				if(port_count < node.m_sources)
 					port_count = node.m_sources;
 				for(uint32_t port = 0; port != port_count; port++)
-					LOG_OUTPUT_FUNC("      %s %s [%g %g %g]\n",
-							(port < node.m_sinks) ? ((port < node.m_sources) ? "<>" : ">") : "<",
-							node.m_port_names[port],
-							node.m_port_positions[port][0],
-							node.m_port_positions[port][1],
-							node.m_port_positions[port][2]);
+					LOG_OUTPUT_FUNC("      %s %s [%s]\n",
+							port < node.m_sinks ? port < node.m_sources ? "<>" : ">" : "<",
+							node.m_port_names[port].c_str(),
+							node.m_port_positions[port].name());
 			}
 			LOG_OUTPUT_FUNC("- streams:\n");
 			for(const auto &stream : m_osd_info.m_streams) {

src/emu/sound.h

@@ -50,8 +50,8 @@
     By default, the inputs will have been resampled to match the output
     sample rate, unless otherwise specified.
 
-    SOUND_DISABLE_THREADING if to be defined when your environment does
-    not support threads (e.g. emscripten).  The effects suddendly become
+    SOUND_DISABLE_THREADING is to be defined when your environment does
+    not support threads (e.g. emscripten).  The effects suddenly become
     costly then though.
 
 ***************************************************************************/
@@ -84,23 +84,6 @@ constexpr u32 SAMPLE_RATE_INPUT_ADAPTIVE = 0xffffffff;
 constexpr u32 SAMPLE_RATE_OUTPUT_ADAPTIVE = 0xfffffffe;
 constexpr u32 SAMPLE_RATE_ADAPTIVE  = 0xfffffffd;
 
-//**************************************************************************
-//  DEBUGGING
-//**************************************************************************
-
-// turn this on to enable aggressive assertions and other checks
-#ifdef MAME_DEBUG
-#define SOUND_DEBUG (1)
-#else
-#define SOUND_DEBUG (1)
-#endif
-
-// if SOUND_DEBUG is on, make assertions fire regardless of MAME_DEBUG
-#if (SOUND_DEBUG)
-#define sound_assert(x) do { if (!(x)) { osd_printf_error("sound_assert: " #x "\n"); osd_break_into_debugger("sound_assert: " #x "\n"); } } while (0)
-#else
-#define sound_assert assert
-#endif
 
 using stream_update_delegate = delegate<void (sound_stream &stream)>;
 class audio_effect;
@@ -599,7 +582,7 @@ private:
 	void update(s32);
 
 	// handle mixing mapping update if needed
-	static std::vector<u32> find_channel_mapping(const std::array<double, 3> &position, const osd::audio_info::node_info *node);
+	static std::vector<u32> find_channel_mapping(const osd::channel_position  &pos, const osd::audio_info::node_info *node);
 	void startup_cleanups();
 	void streams_update();
 	template<bool is_output, typename S> void apply_osd_changes(std::vector<S> &streams);

src/emu/speaker.cpp

@@ -18,37 +18,21 @@
 DEFINE_DEVICE_TYPE(SPEAKER, speaker_device, "speaker", "Speaker")
 DEFINE_DEVICE_TYPE(MICROPHONE, microphone_device, "microphone", "Microphone")
 
-const sound_io_device::position_name_mapping sound_io_device::position_name_mappings[] = {
-	{  0.0,  0.0,  1.0, "Front center" },
-	{ -0.2,  0.0,  1.0, "Front left"   },
-	{  0.0, -0.5,  1.0, "Front floor" },
-	{  0.2,  0.0,  1.0, "Front right" },
-	{  0.0,  0.0, -0.5, "Rear center" },
-	{ -0.2,  0.0, -0.5, "Rear left" },
-	{  0.2,  0.0, -0.5, "Read right" },
-	{  0.0,  0.0, -0.1, "Headrest center" },
-	{ -0.1,  0.0, -0.1, "Headrest left" },
-	{  0.1,  0.0, -0.1, "Headrest right" },
-	{  0.0, -0.5,  0.0, "Seat" },
-	{  0.0, -0.2,  0.1, "Backrest" },
-	{ }
-};
-
-std::string sound_io_device::get_position_name(u32 channel) const
-{
-	for(unsigned int i = 0; position_name_mappings[i].m_name; i++)
-		if(m_positions[channel][0] == position_name_mappings[i].m_x && m_positions[channel][1] == position_name_mappings[i].m_y && m_positions[channel][2] == position_name_mappings[i].m_z)
-			return position_name_mappings[i].m_name;
-	return util::string_format("#%d", channel);
-}
-
 sound_io_device &sound_io_device::set_position(u32 channel, double x, double y, double z)
 {
 	if(channel >= m_positions.size())
 		fatalerror("%s: Requested channel %d on %d channel device\n", tag(), channel, m_positions.size());
-	m_positions[channel][0] = x;
-	m_positions[channel][1] = y;
-	m_positions[channel][2] = z;
+	m_positions[channel].m_x = x;
+	m_positions[channel].m_y = y;
+	m_positions[channel].m_z = z;
+	return *this;
+}
+
+sound_io_device &sound_io_device::set_position(u32 channel, const osd::channel_position &pos)
+{
+	if(channel >= m_positions.size())
+		fatalerror("%s: Requested channel %d on %d channel device\n", tag(), channel, m_positions.size());
+	m_positions[channel] = pos;
 	return *this;
 }
 

src/emu/speaker.h

@@ -41,30 +41,32 @@ DECLARE_DEVICE_TYPE(MICROPHONE, microphone_device)
 class sound_io_device : public device_t, public device_sound_interface
 {
 public:
+
 	virtual ~sound_io_device();
 
 	// configuration helpers
 	sound_io_device &set_position(u32 channel, double x, double y, double z);
-	sound_io_device &front_center(u32 channel = 0)        { return set_position(channel,  0.0,  0.0,  1.0); }
-	sound_io_device &front_left(u32 channel = 0)          { return set_position(channel, -0.2,  0.0,  1.0); }
-	sound_io_device &front_floor(u32 channel = 0)         { return set_position(channel,  0.0, -0.5,  1.0); }
-	sound_io_device &front_right(u32 channel = 0)         { return set_position(channel,  0.2,  0.0,  1.0); }
-	sound_io_device &rear_center(u32 channel = 0)         { return set_position(channel,  0.0,  0.0, -0.5); }
-	sound_io_device &rear_left(u32 channel = 0)           { return set_position(channel, -0.2,  0.0, -0.5); }
-	sound_io_device &rear_right(u32 channel = 0)          { return set_position(channel,  0.2,  0.0, -0.5); }
-	sound_io_device &headrest_center(u32 channel = 0)     { return set_position(channel,  0.0,  0.0, -0.1); }
-	sound_io_device &headrest_left(u32 channel = 0)       { return set_position(channel, -0.1,  0.0, -0.1); }
-	sound_io_device &headrest_right(u32 channel = 0)      { return set_position(channel,  0.1,  0.0, -0.1); }
-	sound_io_device &seat(u32 channel = 0)                { return set_position(channel,  0.0, -0.5,  0.0); }
-	sound_io_device &backrest(u32 channel = 0)            { return set_position(channel,  0.0, -0.2,  0.1); }
-	sound_io_device &unknown(u32 channel = 0)             { return set_position(channel,  0.0,  0.0,  0.0); }
-	sound_io_device &map_on_request_only(u32 channel = 0) { return set_position(channel,  0.0,  0.0, 10.0); }
+	sound_io_device &set_position(u32 channel, const osd::channel_position &pos);
+	sound_io_device &front_center(u32 channel = 0)        { return set_position(channel, osd::channel_position::FC); }
+	sound_io_device &front_left(u32 channel = 0)          { return set_position(channel, osd::channel_position::FL); }
+	sound_io_device &front_right(u32 channel = 0)         { return set_position(channel, osd::channel_position::FR); }
+	sound_io_device &rear_center(u32 channel = 0)         { return set_position(channel, osd::channel_position::RC); }
+	sound_io_device &rear_left(u32 channel = 0)           { return set_position(channel, osd::channel_position::RL); }
+	sound_io_device &rear_right(u32 channel = 0)          { return set_position(channel, osd::channel_position::RR); }
+	sound_io_device &headrest_center(u32 channel = 0)     { return set_position(channel, osd::channel_position::HC); }
+	sound_io_device &headrest_left(u32 channel = 0)       { return set_position(channel, osd::channel_position::HL); }
+	sound_io_device &headrest_right(u32 channel = 0)      { return set_position(channel, osd::channel_position::RC); }
+	sound_io_device &backrest(u32 channel = 0)            { return set_position(channel, osd::channel_position::BACKREST); }
+	sound_io_device &unknown(u32 channel = 0)             { return set_position(channel, osd::channel_position::UNKNOWN); }
+	sound_io_device &map_on_request_only(u32 channel = 0) { return set_position(channel, osd::channel_position::ONREQ);   }
+	sound_io_device &lfe(u32 channel = 0)                 { return set_position(channel, osd::channel_position::LFE);     }
+
 	sound_io_device &front()                              { return front_left(0).front_right(1); }
 	sound_io_device &rear()                               { return rear_left(0).rear_right(1); }
 	sound_io_device &corners()                            { return front_left(0).front_right(1).rear_left(2).rear_right(3); }
+
 	int channels() const { return m_positions.size(); }
-	std::array<double, 3> get_position(u32 channel) const { return m_positions[channel]; }
-	std::string get_position_name(u32 channel) const;
+	const osd::channel_position &get_position(u32 channel) const { return m_positions[channel]; }
 
 	virtual bool is_output() const = 0;
 	void set_id(int id) { m_id = id; }
@@ -72,20 +74,9 @@ public:
 
 	sound_stream *stream() const { return m_stream; }
 
-	static bool mapping_allowed(const std::array<double, 3> &position) {
-		return position[0] != 0 || position[1] != 0 || position[2] != 10.0;
-	}
-
 protected:
-	struct position_name_mapping {
-		double m_x, m_y, m_z;
-		const char *m_name;
-	};
-
-	static const position_name_mapping position_name_mappings[];
-
 	// configuration state
-	std::vector<std::array<double, 3>> m_positions;
+	std::vector<osd::channel_position> m_positions;
 	sound_stream *m_stream;
 	int m_id;
 

src/frontend/mame/luaengine.cpp

@@ -1696,9 +1696,9 @@ void lua_engine::initialize()
 					{
 						auto pos = iodev->get_position(channel);
 						auto table = sol().create_table();
-						table[1] = pos[0];
-						table[2] = pos[1];
-						table[3] = pos[2];
+						table[1] = pos.m_x;
+						table[2] = pos.m_y;
+						table[3] = pos.m_z;
 						pos_table[channel+1] = table;
 					}
 				return pos_table;
@@ -1710,7 +1710,7 @@ void lua_engine::initialize()
 				auto *iodev = dynamic_cast<sound_io_device *>(&dev.device());
 				if (iodev)
 					for(int channel=0; channel != iodev->channels(); channel++)
-						pos_table[channel+1] = iodev->get_position_name(channel);
+						pos_table[channel+1] = iodev->get_position(channel).name();
 				return pos_table;
 			});
 

src/frontend/mame/ui/audio_effect_reverb.cpp

@@ -0,0 +1,655 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+/*********************************************************************
+
+    ui/audio_effect_reverb.cpp
+
+    Reverb configuration
+
+*********************************************************************/
+
+#include "emu.h"
+#include "ui/audio_effect_reverb.h"
+#include "audio_effects/aeffect.h"
+#include "audio_effects/reverb.h"
+
+#include "ui/ui.h"
+
+namespace ui {
+menu_audio_effect_reverb::menu_audio_effect_reverb(mame_ui_manager &mui, render_container &container, u16 chain, u16 entry, audio_effect *effect)
+	: menu(mui, container)
+{
+	m_chain = chain;
+	m_entry = entry;
+	m_preset = 0;
+	m_effect = static_cast<audio_effect_reverb *>(effect);
+	set_heading(util::string_format("%s #%u", chain == 0xffff ? _("Default") : machine().sound().effect_chain_tag(chain), entry+1));
+	set_process_flags(PROCESS_LR_REPEAT | PROCESS_LR_ALWAYS);
+}
+
+menu_audio_effect_reverb::~menu_audio_effect_reverb()
+{
+}
+
+bool menu_audio_effect_reverb::handle(event const *ev)
+{
+	if(!ev)
+		return false;
+
+	bool alt_pressed = machine().input().code_pressed(KEYCODE_LALT) || machine().input().code_pressed(KEYCODE_RALT);
+	bool ctrl_pressed = machine().input().code_pressed(KEYCODE_LCONTROL) || machine().input().code_pressed(KEYCODE_RCONTROL);
+	bool shift_pressed = machine().input().code_pressed(KEYCODE_LSHIFT) || machine().input().code_pressed(KEYCODE_RSHIFT);
+
+	switch(ev->iptkey) {
+	case IPT_UI_SELECT:
+		if(uintptr_t(ev->itemref) == PRESET) {
+			m_effect->load_preset(m_preset);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+		}
+		break;
+
+	case IPT_UI_LEFT: {
+		switch(uintptr_t(ev->itemref)) {
+		case MODE:
+			m_effect->set_mode(0);
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case PRESET:
+			if(m_preset != 0)
+				m_preset --;
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case DRYL:
+			m_effect->set_dry_level(change_percent(m_effect->dry_level(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case EL:
+			m_effect->set_early_level(change_percent(m_effect->early_level(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LL:
+			m_effect->set_late_level(change_percent(m_effect->late_level(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case E2LL:
+			m_effect->set_early_to_late_level(change_percent(m_effect->early_to_late_level(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case ERS:
+			m_effect->set_early_room_size(change_percent(m_effect->early_room_size(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LRS:
+			m_effect->set_late_room_size(change_percent(m_effect->late_room_size(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case SW:
+			m_effect->set_stereo_width(change_percent(m_effect->stereo_width(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDIFF:
+			m_effect->set_late_diffusion(change_percent(m_effect->late_diffusion(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LWANDER:
+			m_effect->set_late_wander(change_percent(m_effect->late_wander(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case EDAMP:
+			m_effect->set_early_damping(change_freq(m_effect->early_damping(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDAMP:
+			m_effect->set_late_damping(change_freq(m_effect->late_damping(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LPDELAY:
+			m_effect->set_late_predelay(change_ms(m_effect->late_predelay(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDECAY:
+			m_effect->set_late_global_decay(change_decay(m_effect->late_global_decay(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LSPIN:
+			m_effect->set_late_spin(change_spin(m_effect->late_spin(), false, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case ETAP:
+			if(m_effect->early_tap_setup() != 0) {
+				m_effect->set_early_tap_setup(m_effect->early_tap_setup() - 1);
+				if(m_chain == 0xffff)
+					machine().sound().default_effect_changed(m_entry);
+				reset(reset_options::REMEMBER_POSITION);
+			}
+			return true;
+		}
+		break;
+	}
+
+	case IPT_UI_RIGHT: {
+		switch(uintptr_t(ev->itemref)) {
+		case MODE:
+			m_effect->set_mode(1);
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case PRESET:
+			if(m_preset != audio_effect_reverb::preset_count() - 1)
+				m_preset ++;
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case DRYL:
+			m_effect->set_dry_level(change_percent(m_effect->dry_level(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case EL:
+			m_effect->set_early_level(change_percent(m_effect->early_level(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LL:
+			m_effect->set_late_level(change_percent(m_effect->late_level(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case E2LL:
+			m_effect->set_early_to_late_level(change_percent(m_effect->early_to_late_level(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case ERS:
+			m_effect->set_early_room_size(change_percent(m_effect->early_room_size(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LRS:
+			m_effect->set_late_room_size(change_percent(m_effect->late_room_size(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case SW:
+			m_effect->set_stereo_width(change_percent(m_effect->stereo_width(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDIFF:
+			m_effect->set_late_diffusion(change_percent(m_effect->late_diffusion(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LWANDER:
+			m_effect->set_late_wander(change_percent(m_effect->late_wander(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case EDAMP:
+			m_effect->set_early_damping(change_freq(m_effect->early_damping(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDAMP:
+			m_effect->set_late_damping(change_freq(m_effect->late_damping(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LPDELAY:
+			m_effect->set_late_predelay(change_ms(m_effect->late_predelay(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDECAY:
+			m_effect->set_late_global_decay(change_decay(m_effect->late_global_decay(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LSPIN:
+			m_effect->set_late_spin(change_spin(m_effect->late_spin(), true, shift_pressed, ctrl_pressed, alt_pressed));
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case ETAP:
+			if(m_effect->early_tap_setup() != audio_effect_reverb::early_tap_setup_count() - 1) {
+				m_effect->set_early_tap_setup(m_effect->early_tap_setup() + 1);
+				if(m_chain == 0xffff)
+					machine().sound().default_effect_changed(m_entry);
+				reset(reset_options::REMEMBER_POSITION);
+			}
+			return true;
+		}
+
+		break;
+	}
+
+	case IPT_UI_CLEAR: {
+		switch(uintptr_t(ev->itemref)) {
+		case MODE:
+			m_effect->reset_mode();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case DRYL:
+			m_effect->reset_dry_level();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case EL:
+			m_effect->reset_early_level();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LL:
+			m_effect->reset_late_level();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case E2LL:
+			m_effect->reset_early_to_late_level();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case ERS:
+			m_effect->reset_early_room_size();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LRS:
+			m_effect->reset_late_room_size();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case SW:
+			m_effect->reset_stereo_width();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDIFF:
+			m_effect->reset_late_diffusion();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LWANDER:
+			m_effect->reset_late_wander();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case EDAMP:
+			m_effect->reset_early_damping();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDAMP:
+			m_effect->reset_late_damping();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LPDELAY:
+			m_effect->reset_late_predelay();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LDECAY:
+			m_effect->reset_late_global_decay();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case LSPIN:
+			m_effect->reset_late_spin();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+
+		case ETAP:
+			m_effect->reset_early_tap_setup();
+			if(m_chain == 0xffff)
+				machine().sound().default_effect_changed(m_entry);
+			reset(reset_options::REMEMBER_POSITION);
+			return true;
+		}
+		break;
+	}
+	}
+	return false;
+}
+
+std::string menu_audio_effect_reverb::format_percent(double val)
+{
+	return util::string_format("%d%", u32(val));
+}
+
+std::string menu_audio_effect_reverb::format_freq(double val)
+{
+	return util::string_format("%dHz", u32(val+0.5));
+}
+
+std::string menu_audio_effect_reverb::format_ms(double val)
+{
+	return util::string_format("%5.1fms", val);
+}
+
+std::string menu_audio_effect_reverb::format_decay(double val)
+{
+	return util::string_format("%5.2fs", val);
+}
+
+std::string menu_audio_effect_reverb::format_spin(double val)
+{
+	return util::string_format("%3.2fHz", val);
+}
+
+u32 menu_audio_effect_reverb::flag_percent(double val, bool isset)
+{
+	u32 flag = 0;
+	if(!isset)
+		flag |= FLAG_INVERT;
+	if(val > 0)
+		flag |= FLAG_LEFT_ARROW;
+	if(val < 100)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+u32 menu_audio_effect_reverb::flag_freq(double val, bool isset)
+{
+	u32 flag = 0;
+	if(!isset)
+		flag |= FLAG_INVERT;
+	if(val > 100)
+		flag |= FLAG_LEFT_ARROW;
+	if(val < 16000)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+u32 menu_audio_effect_reverb::flag_ms(double val, bool isset)
+{
+	u32 flag = 0;
+	if(!isset)
+		flag |= FLAG_INVERT;
+	if(val > 0)
+		flag |= FLAG_LEFT_ARROW;
+	if(val < 200)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+u32 menu_audio_effect_reverb::flag_decay(double val, bool isset)
+{
+	u32 flag = 0;
+	if(!isset)
+		flag |= FLAG_INVERT;
+	if(val > 0.1)
+		flag |= FLAG_LEFT_ARROW;
+	if(val < 30)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+u32 menu_audio_effect_reverb::flag_spin(double val, bool isset)
+{
+	u32 flag = 0;
+	if(!isset)
+		flag |= FLAG_INVERT;
+	if(val > 0)
+		flag |= FLAG_LEFT_ARROW;
+	if(val < 5)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+double menu_audio_effect_reverb::change_percent(double val, bool inc, bool shift, bool ctrl, bool alt)
+{
+	double step = alt ? 100 : ctrl ? 20 : shift ? 1 : 5;
+	if(inc)
+		val = std::min(100.0, val + step);
+	else
+		val = std::max(0.0, val - step);
+	return val;
+}
+
+double menu_audio_effect_reverb::change_freq(double val, bool inc, bool shift, bool ctrl, bool alt)
+{
+	double step = alt ? 16000 : ctrl ? 20 : shift ? 1 : 5;
+	if(val >= 10000)
+		step *= 100;
+	else if(val >= 500)
+		step *= 50;
+	else if(val >= 250)
+		step *= 20;
+	else if(val >= 1000)
+		step *= 10;
+	else if(val >= 500)
+		step *= 5;
+	else if(val >= 250)
+		step *= 2;
+
+	if(inc)
+		val = std::min(16000.0, val + step);
+	else
+		val = std::max(100.0, val - step);
+	return val;
+}
+
+double menu_audio_effect_reverb::change_ms(double val, bool inc, bool shift, bool ctrl, bool alt)
+{
+	double step = alt ? 200 : ctrl ? 10 : shift ? 0.1 : 1;
+	if(inc)
+		val = std::min(200.0, val + step);
+	else
+		val = std::max(0.0, val - step);
+	val = u32(val * 10 + 0.5) / 10.0;
+	return val;
+}
+
+double menu_audio_effect_reverb::change_decay(double val, bool inc, bool shift, bool ctrl, bool alt)
+{
+	double step = alt ? 30 : ctrl ? 1 : shift ? 0.01 : 0.1;
+	if(inc)
+		val = std::min(30.0, val + step);
+	else
+		val = std::max(0.1, val - step);
+	val = u32(val * 100 + 0.5) / 100.0;
+	return val;
+}
+
+double menu_audio_effect_reverb::change_spin(double val, bool inc, bool shift, bool ctrl, bool alt)
+{
+	double step = alt ? 5 : ctrl ? 1 : shift ? 0.01 : 0.1;
+	if(inc)
+		val = std::min(5.0, val + step);
+	else
+		val = std::max(0.0, val - step);
+	val = u32(val * 100 + 0.5) / 100.0;
+	return val;
+}
+
+
+void menu_audio_effect_reverb::populate()
+{
+	item_append(_(audio_effect::effect_names[audio_effect::REVERB]), FLAG_UI_HEADING | FLAG_DISABLE, nullptr);
+	item_append(_("Mode"), m_effect->mode() ? _("Active") : _("Bypass"), flag_mode(), (void *)MODE);
+	item_append(_("Load preset"), audio_effect_reverb::preset_name(m_preset), flag_preset(), (void *)PRESET);
+	item_append(_("Dry level"), format_percent(m_effect->dry_level()), flag_percent(m_effect->dry_level(), m_effect->isset_dry_level()), (void *)DRYL);
+	item_append(_("Stereo width"), format_percent(m_effect->stereo_width()), flag_percent(m_effect->stereo_width(), m_effect->isset_stereo_width()), (void *)SW);
+	
+	item_append(_("Early Reflections"), FLAG_UI_HEADING | FLAG_DISABLE, nullptr);
+	item_append(_("Room size"), format_percent(m_effect->early_room_size()), flag_percent(m_effect->early_room_size(), m_effect->isset_early_room_size()), (void *)ERS);
+	item_append(_("Tap setup"), audio_effect_reverb::early_tap_setup_name(m_effect->early_tap_setup()), flag_tap_setup(), (void *)ETAP);
+	item_append(_("Damping"), format_freq(m_effect->early_damping()), flag_percent(m_effect->early_damping(), m_effect->isset_early_damping()), (void *)EDAMP);
+	item_append(_("Level"), format_percent(m_effect->early_level()), flag_percent(m_effect->early_level(), m_effect->isset_early_level()), (void *)EL);
+	item_append(_("Send to Late"), format_percent(m_effect->early_to_late_level()), flag_percent(m_effect->early_to_late_level(), m_effect->isset_early_to_late_level()), (void *)E2LL);
+
+	item_append(_("Late Reflections"), FLAG_UI_HEADING | FLAG_DISABLE, nullptr);
+	item_append(_("Room size"), format_percent(m_effect->late_room_size()), flag_percent(m_effect->late_room_size(), m_effect->isset_late_room_size()), (void *)LRS);
+	item_append(_("Damping"), format_freq(m_effect->late_damping()), flag_percent(m_effect->late_damping(), m_effect->isset_late_damping()), (void *)LDAMP);
+	item_append(_("Pre-delay"), format_ms(m_effect->late_predelay()), flag_percent(m_effect->late_predelay(), m_effect->isset_late_predelay()), (void *)LPDELAY);
+	item_append(_("Diffusion"), format_percent(m_effect->late_diffusion()), flag_percent(m_effect->late_diffusion(), m_effect->isset_late_diffusion()), (void *)LDIFF);
+	item_append(_("Wander"), format_percent(m_effect->late_wander()), flag_percent(m_effect->late_wander(), m_effect->isset_late_wander()), (void *)LWANDER);
+	item_append(_("Decay"), format_decay(m_effect->late_global_decay()), flag_decay(m_effect->late_global_decay(), m_effect->isset_late_global_decay()), (void *)LDECAY);
+	item_append(_("Spin"), format_spin(m_effect->late_spin()), flag_spin(m_effect->late_spin(), m_effect->isset_late_spin()), (void *)LSPIN);
+	item_append(_("Level"), format_percent(m_effect->late_level()), flag_percent(m_effect->late_level(), m_effect->isset_late_level()), (void *)LL);
+	item_append(menu_item_type::SEPARATOR);
+}
+
+void menu_audio_effect_reverb::recompute_metrics(uint32_t width, uint32_t height, float aspect)
+{
+	menu::recompute_metrics(width, height, aspect);
+}
+
+void menu_audio_effect_reverb::custom_render(uint32_t flags, void *selectedref, float top, float bottom, float x1, float y1, float x2, float y2)
+{
+}
+
+void menu_audio_effect_reverb::menu_activated()
+{
+	// scripts or the other form of the menu could have changed something in the mean time
+	reset(reset_options::REMEMBER_POSITION);
+}
+
+void menu_audio_effect_reverb::menu_deactivated()
+{
+}
+
+
+u32 menu_audio_effect_reverb::flag_mode() const
+{
+	u32 flag = 0;
+	if(!m_effect->isset_mode())
+		flag |= FLAG_INVERT;
+	if(m_effect->mode())
+		flag |= FLAG_LEFT_ARROW;
+	else
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+u32 menu_audio_effect_reverb::flag_tap_setup() const
+{
+	u32 flag = 0;
+	if(!m_effect->isset_early_tap_setup())
+		flag |= FLAG_INVERT;
+	if(m_effect->early_tap_setup() != 0)
+		flag |= FLAG_LEFT_ARROW;
+	if(m_effect->early_tap_setup() != audio_effect_reverb::early_tap_setup_count() - 1)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+
+u32 menu_audio_effect_reverb::flag_preset() const
+{
+	u32 flag = 0;
+	if(m_preset != 0)
+		flag |= FLAG_LEFT_ARROW;
+	if(m_preset != audio_effect_reverb::preset_count() - 1)
+		flag |= FLAG_RIGHT_ARROW;
+	return flag;
+}
+}

src/frontend/mame/ui/audio_effect_reverb.h

@@ -0,0 +1,88 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+/***************************************************************************
+
+    ui/audio_effect_reverb.h
+
+    Reverb configuration
+
+***************************************************************************/
+
+#ifndef MAME_FRONTEND_UI_AUDIO_EFFECT_REVERB_H
+#define MAME_FRONTEND_UI_AUDIO_EFFECT_REVERB_H
+
+#pragma once
+
+#include "ui/menu.h"
+
+class audio_effect_reverb;
+
+namespace ui {
+
+class menu_audio_effect_reverb : public menu
+{
+public:
+	menu_audio_effect_reverb(mame_ui_manager &mui, render_container &container, u16 chain, u16 entry, audio_effect *effect);
+	virtual ~menu_audio_effect_reverb() override;
+
+protected:
+	virtual void recompute_metrics(uint32_t width, uint32_t height, float aspect) override;
+	virtual void custom_render(uint32_t flags, void *selectedref, float top, float bottom, float x, float y, float x2, float y2) override;
+	virtual void menu_activated() override;
+	virtual void menu_deactivated() override;
+
+private:
+	enum {
+		MODE,
+		PRESET,
+		DRYL,
+		EL,
+		LL,
+		E2LL,
+		SW,
+		EDAMP,
+		ERS,
+		ETAP,
+		LDAMP,
+		LDIFF,
+		LPDELAY,
+		LRS,
+		LDECAY,
+		LSPIN,
+		LWANDER
+	};
+
+	u16 m_chain, m_entry;
+	u32 m_preset;
+	audio_effect_reverb *m_effect;
+
+	virtual void populate() override;
+	virtual bool handle(event const *ev) override;
+
+	static std::string format_percent(double val);
+	static std::string format_freq(double val);
+	static std::string format_ms(double val);
+	static std::string format_decay(double val);
+	static std::string format_spin(double val);
+
+	u32 flag_mode() const;
+	u32 flag_tap_setup() const;
+	u32 flag_preset() const;
+
+	static u32 flag_percent(double val, bool isset);
+	static u32 flag_freq(double val, bool isset);
+	static u32 flag_ms(double val, bool isset);
+	static u32 flag_decay(double val, bool isset);
+	static u32 flag_spin(double val, bool isset);
+
+	static double change_percent(double val, bool inc, bool shift, bool ctrl, bool alt);
+	static double change_freq(double val, bool inc, bool shift, bool ctrl, bool alt);
+	static double change_ms(double val, bool inc, bool shift, bool ctrl, bool alt);
+	static double change_decay(double val, bool inc, bool shift, bool ctrl, bool alt);
+	static double change_spin(double val, bool inc, bool shift, bool ctrl, bool alt);
+
+};
+
+} // namespace ui
+
+#endif // MAME_FRONTEND_UI_AUDIO_EFFECT_REVERB_H

src/frontend/mame/ui/audioeffects.cpp

@@ -15,6 +15,7 @@
 #include "audio_effect_compressor.h"
 #include "audio_effect_eq.h"
 #include "audio_effect_filter.h"
+#include "audio_effect_reverb.h"
 
 #include "ui/ui.h"
 
@@ -106,6 +107,10 @@ bool menu_audio_effects::handle(event const *ev)
 		case audio_effect::FILTER:
 			menu::stack_push<menu_audio_effect_filter>(ui(), container(), chain, entry, eff);
 			break;
+
+		case audio_effect::REVERB:
+			menu::stack_push<menu_audio_effect_reverb>(ui(), container(), chain, entry, eff);
+			break;
 		}
 		return true;
 	}

src/frontend/mame/ui/audiomix.cpp

@@ -599,7 +599,7 @@ void menu_audio_mixer::populate()
 		}
 		for(const auto &cmap : omap.m_channel_mappings) {
 			const auto &node = find_node(cmap.m_node);
-			std::string guest_channel = omap.m_dev->get_position_name(cmap.m_guest_channel);
+			std::string guest_channel = omap.m_dev->get_position(cmap.m_guest_channel).name();
 			if(curline == cursel_line && m_current_group == GRP_GUEST_CHANNEL)
 				guest_channel = u8"\u25c4" + guest_channel + u8"\u25ba";
 

src/mame/atari/atarigt.cpp

@@ -903,7 +903,7 @@ void atarigt_state::atarigt_stereo(machine_config &config)
 	// based on dedicated cabinet configuration;
 	// 'universal' kit supports mono and stereo, with/without subwoofer.
 	SPEAKER(config, "speaker", 2).front();
-	SPEAKER(config, "subwoofer").front_floor(); // Next to the coin door at dedicated cabinet, just silence for now (not implemented)
+	SPEAKER(config, "subwoofer").lfe(); // Next to the coin door at dedicated cabinet, just silence for now (not implemented)
 
 	// TODO: correct? sound board has only 1 DAC populated.
 	m_cage->add_route(0, "speaker", 1.0, 1);
@@ -925,7 +925,7 @@ void atarigt_state::tmek(machine_config &config)
 
 	// 5 Channel output (4 Channel input connected to Quad Amp PCB)
 	SPEAKER(config, "speaker", 4).front().headrest_left(2).headrest_right(3);
-	//SPEAKER(config, "subwoofer").seat(); Not implemented, Quad Amp PCB output;
+	//SPEAKER(config, "subwoofer").lfe(); Not implemented, Quad Amp PCB output;
 
 	m_cage->set_speedup(0x4fad);
 	m_cage->add_route(0, "speaker", 1.0, 1); // Foward Right

src/mame/atari/metalmx.cpp

@@ -761,7 +761,7 @@ void metalmx_state::metalmx(machine_config &config)
 	// TODO: copied from atarigt.cpp; Same configurations as T-Mek?
 	// 5 Channel output (4 Channel input connected to Quad Amp PCB)
 	SPEAKER(config, "speaker", 4).front().headrest_left(2).headrest_right(3);
-	//SPEAKER(config, "subwoofer").seat(); Not implemented, Quad Amp PCB output;
+	//SPEAKER(config, "subwoofer").lfe(); Not implemented, Quad Amp PCB output;
 
 	ATARI_CAGE(config, m_cage, 0);
 	m_cage->set_speedup(0); // TODO: speedup address

src/mame/midway/seattle.cpp

@@ -2171,7 +2171,7 @@ void seattle_state::sfrush(machine_config &config)
 
 	// 5 Channel output (4 Channel input connected to Quad Amp PCB)
 	SPEAKER(config, "speaker", 4).corners();
-	//SPEAKER(config, "subwoofer").seat(); Not implemented, Quad Amp PCB output;
+	//SPEAKER(config, "subwoofer").lfe(); Not implemented, Quad Amp PCB output;
 
 	ATARI_CAGE_SEATTLE(config, m_cage, 0);
 	m_cage->set_speedup(0x5236);
@@ -2201,7 +2201,7 @@ void seattle_state::sfrushrk(machine_config &config)
 
 	// 5 Channel output (4 Channel input connected to Quad Amp PCB)
 	SPEAKER(config, "speaker", 4).corners();
-	//SPEAKER(config, "subwoofer").seat(); Not implemented, Quad Amp PCB output;
+	//SPEAKER(config, "subwoofer").lfe(); Not implemented, Quad Amp PCB output;
 
 	ATARI_CAGE_SEATTLE(config, m_cage, 0);
 	m_cage->set_speedup(0x5329);

src/mame/namco/namcos22.cpp

@@ -3846,7 +3846,7 @@ void namcos22s_state::airco22b(machine_config &config)
 {
 	namcos22s(config);
 
-	SPEAKER(config, "bodysonic").backrest();
+	SPEAKER(config, "bodysonic").lfe();
 	m_c352->add_route(2, "bodysonic", 0.50); // to subwoofer behind back
 }
 
@@ -3892,7 +3892,7 @@ void namcos22s_state::tokyowar(machine_config &config)
 {
 	namcos22s(config);
 
-	SPEAKER(config, "vibration").seat();
+	SPEAKER(config, "vibration").lfe();
 	SPEAKER(config, "seat").headrest_center();
 
 	m_c352->add_route(2, "vibration", 0.5); // to "bass shaker"

src/mame/pinball/s11b.cpp

@@ -394,7 +394,7 @@ void s11b_state::s11b_jokerz(machine_config &config)
 	m_cvsd_filter2->add_route(ALL_OUTPUTS, m_ps88, (0.25*4.0), 1);
 	m_pia34->ca2_handler().set(m_ps88, FUNC(pinsnd88_device::resetq_w));
 	m_ps88->syncq_cb().set(m_pia34, FUNC(pia6821_device::ca1_w)); // the sync connection comes from sound connector pin 16 to MCA1, not the usual pin 12 to MCB1
-	SPEAKER(config, "cabinet").front_floor(); // the cabinet speaker is aimed down underneath the pinball table itself
+	SPEAKER(config, "cabinet").set_position(0, 0.0, -0.5, 1.0); // the cabinet speaker is aimed down underneath the pinball table itself
 	SPEAKER(config, "backbox").front_center(); // the backbox speakers are roughly level with the user, but farther in front of them than the cabinet
 	m_ps88->add_route(0, "cabinet", 1.0);
 	m_ps88->add_route(1, "backbox", 1.0);

src/mame/taito/ninjaw.cpp

@@ -974,7 +974,7 @@ void ninjaw_state::ninjaw(machine_config &config)
 
 	/* sound hardware */
 	SPEAKER(config, "speaker", 2).front();
-	SPEAKER(config, "subwoofer").seat();
+	SPEAKER(config, "subwoofer").lfe();
 
 	ym2610_device &ymsnd(YM2610(config, "ymsnd", 16000000/2));
 	ymsnd.irq_handler().set_inputline("audiocpu", 0);
@@ -1079,7 +1079,7 @@ void ninjaw_state::darius2(machine_config &config)
 
 	/* sound hardware */
 	SPEAKER(config, "speaker", 2).front();
-	SPEAKER(config, "subwoofer").seat();
+	SPEAKER(config, "subwoofer").lfe();
 
 	ym2610_device &ymsnd(YM2610(config, "ymsnd", 16000000/2));
 	ymsnd.irq_handler().set_inputline("audiocpu", 0);

src/mame/taito/taito_z.cpp

@@ -3221,7 +3221,7 @@ void contcirc_state::contcirc(machine_config &config) //OSC: 26.686, 24.000, 16.
 	/* sound hardware */
 	SPEAKER(config, "front").front_center();
 	SPEAKER(config, "rear").rear_center();
-	SPEAKER(config, "subwoofer").set_position(0, 0.0, 0.0, 0.0); // FIXME: where is this speaker located?
+	SPEAKER(config, "subwoofer").lfe();
 
 	ym2610_device &ymsnd(YM2610(config, "ymsnd", XTAL(16'000'000)/2));    // 8 MHz
 	ymsnd.irq_handler().set_inputline(m_audiocpu, 0);
@@ -3280,7 +3280,7 @@ void chasehq_state::chasehq(machine_config &config) //OSC: 26.686, 24.000, 16.00
 	/* sound hardware */
 	SPEAKER(config, "front").front_center();
 	SPEAKER(config, "rear").rear_center();
-	SPEAKER(config, "subwoofer").set_position(0, 0.0, 0.0, 0.0); // FIXME: where is this speaker located?
+	SPEAKER(config, "subwoofer").lfe();
 
 	ym2610_device &ymsnd(YM2610(config, "ymsnd", XTAL(16'000'000)/2));    // 8 MHz
 	ymsnd.irq_handler().set_inputline(m_audiocpu, 0);
@@ -3539,7 +3539,7 @@ void nightstr_state::nightstr(machine_config &config) //OSC: 26.686, 24.000, 16.
 	/* sound hardware */
 	SPEAKER(config, "front").front_center();
 	SPEAKER(config, "rear").rear_center();
-	SPEAKER(config, "subwoofer").set_position(0, 0.0, 0.0, 0.0); // FIXME: where is this located in the cabinet?
+	SPEAKER(config, "subwoofer").lfe();
 
 	ym2610_device &ymsnd(YM2610(config, "ymsnd", XTAL(16'000'000)/2));    // 8 MHz
 	ymsnd.irq_handler().set_inputline(m_audiocpu, 0);

src/mame/taito/taitojc.cpp

@@ -1155,7 +1155,7 @@ void dendego_state::dendego(machine_config &config)
 	m_screen->set_screen_update(FUNC(dendego_state::screen_update_dendego));
 
 	/* sound hardware */
-	SPEAKER(config, "vibration").seat();
+	SPEAKER(config, "vibration").lfe();
 
 	/* clock frequency & pin 7 not verified */
 	OKIM6295(config, "oki", 1056000, okim6295_device::PIN7_HIGH).add_route(ALL_OUTPUTS, "vibration", 0.20);

src/mame/taito/warriorb.cpp

@@ -630,7 +630,7 @@ void warriorb_state::darius2d(machine_config &config)
 
 	// sound hardware
 	SPEAKER(config, "speaker", 2).front();
-	SPEAKER(config, "subwoofer").seat();
+	SPEAKER(config, "subwoofer").lfe();
 
 	ym2610_device &ymsnd(YM2610(config, "ymsnd", 16_MHz_XTAL / 2));
 	ymsnd.irq_handler().set_inputline("audiocpu", 0);

src/osd/interface/audio.cpp

@@ -0,0 +1,49 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+
+#include "emu.h"
+#include "audio.h"
+
+const osd::channel_position osd::channel_position::UNKNOWN(0.0, 0.0,  0.0);
+const osd::channel_position osd::channel_position::ONREQ  (0.0, 0.0, 10.0);
+const osd::channel_position osd::channel_position::LFE    (0.0, 0.0, 11.0);
+
+bool osd::channel_position::is_lfe() const     { return *this == LFE; }
+bool osd::channel_position::is_onreq() const   { return *this == ONREQ; }
+bool osd::channel_position::is_unknown() const { return *this == UNKNOWN; }
+
+const osd::channel_position osd::channel_position::FC      ( 0.0,  0.0,  1.0);
+const osd::channel_position osd::channel_position::FL      (-0.2,  0.0,  1.0);
+const osd::channel_position osd::channel_position::FR      ( 0.2,  0.0,  1.0);
+const osd::channel_position osd::channel_position::RC      ( 0.0,  0.0, -0.5);
+const osd::channel_position osd::channel_position::RL      (-0.2,  0.0, -0.5);
+const osd::channel_position osd::channel_position::RR      ( 0.2,  0.0, -0.5);
+const osd::channel_position osd::channel_position::HC      ( 0.0,  0.0, -0.1);
+const osd::channel_position osd::channel_position::HL      (-0.1,  0.0, -0.1);
+const osd::channel_position osd::channel_position::HR      ( 0.1,  0.0, -0.1);
+const osd::channel_position osd::channel_position::BACKREST( 0.0, -0.2,  0.1);
+
+const osd::detail::position_name_mapping osd::detail::position_name_mappings[] = {
+  { channel_position::FC, "Front center"    },
+  { channel_position::FL, "Front left"      },
+  { channel_position::FR, "Front right"     },
+  { channel_position::RC, "Rear center"     },
+  { channel_position::RL, "Rear left"       },
+  { channel_position::RR, "Rear right"      },
+  { channel_position::HC, "Headrest center" },
+  { channel_position::HL, "Headrest left"   },
+  { channel_position::HR, "Headrest right"  },
+  { channel_position::BACKREST, "Backrest"  },
+  { channel_position::LFE, "Subwoofer"      },
+  { channel_position::ONREQ, "Auxiliary"    },
+  { channel_position::UNKNOWN, "Unknown"    }
+};
+
+std::string osd::channel_position::name() const
+{
+	for(unsigned int i=0; i != sizeof(detail::position_name_mappings)/sizeof(detail::position_name_mappings[0]); i++)
+		if(*this == detail::position_name_mappings[i].m_pos)
+			return detail::position_name_mappings[i].m_name;
+	return util::string_format("[%f %f %f]", m_x, m_y, m_z);
+}
+

src/osd/interface/audio.h

@@ -16,6 +16,57 @@
 
 namespace osd {
 
+struct channel_position {
+	// Special positions
+
+	// Position is unknown, placed in the middle
+	static const struct channel_position UNKNOWN;
+
+	// This channel should only be mapped explicitely through a channel mapping (on request)
+	static const struct channel_position ONREQ;
+
+	// This channel is a LFE
+	static const struct channel_position LFE;
+
+
+	// Standard positions
+	static const struct channel_position FC;
+	static const struct channel_position FL;
+	static const struct channel_position FR;
+	static const struct channel_position RC;
+	static const struct channel_position RL;
+	static const struct channel_position RR;
+	static const struct channel_position HC;
+	static const struct channel_position HL;
+	static const struct channel_position HR;
+	static const struct channel_position BACKREST;
+
+	double m_x, m_y, m_z;
+
+	bool is_lfe() const;
+	bool is_onreq() const;
+	bool is_unknown() const;
+
+	channel_position() : channel_position(UNKNOWN) {}
+	channel_position(double x, double y, double z) : m_x(x), m_y(y), m_z(z) {}
+	channel_position(const channel_position &pos) : m_x(pos.m_x), m_y(pos.m_y), m_z(pos.m_z) {}
+
+	bool operator == (const channel_position &pos) const {
+		return pos.m_x == m_x && pos.m_y == m_y && pos.m_z == m_z;
+	}
+
+	std::string name() const;
+};
+
+namespace detail {
+struct position_name_mapping {
+	struct channel_position m_pos;
+	const char *m_name;
+};
+
+extern const position_name_mapping position_name_mappings[];
+};
+
 struct audio_rate_range {
 	uint32_t m_default_rate;
 	uint32_t m_min_rate;
@@ -41,7 +92,7 @@ struct audio_info {
 		uint32_t m_id;
 		audio_rate_range m_rate;
 		std::vector<std::string> m_port_names;
-		std::vector<std::array<double, 3> > m_port_positions;
+		std::vector<channel_position> m_port_positions;
 		uint32_t m_sinks;
 		uint32_t m_sources;
 

src/osd/modules/sound/coreaudio_sound.cpp

@@ -102,62 +102,62 @@ static const char *sMacChannelLabels[sMacChannelCount] =
 // "Surround" channels are at X = -0.4 (left) and 0.4 (right).
 static const std::array<double,3> sChannelPositions[sMacChannelCount] =
 {
-	{  0.0,  0.0,  0.0 }, // unused
-	{ -0.2,  0.0,  1.0 }, // Front Left
-	{  0.2,  0.0,  1.0 }, // Front Right
-	{  0.0,  0.0,  1.0 }, // Front Center
-	{  0.0, -0.5,  0.0 }, // Low Frequency Effects
-	{ -0.2,  0.0, -0.5 }, // Rear Left
-	{  0.2,  0.0, -0.5 }, // Rear Right
-	{ -0.1,  0.0,  1.0 }, // Front Left of Center
-	{  0.1,  0.0,  1.0 }, // Front Right of Center
-	{  0.0,  0.0, -1.0 }, // Rear Center
-	{ -0.2,  0.0,  0.5 }, // Side Left
-	{  0.2,  0.0,  0.5 }, // Side Right
-	{  0.0,  0.5, -0.1 }, // Top Center
-	{ -0.2,  0.5,  1.0 }, // Top Front Left
-	{  0.0,  0.5,  1.0 }, // Top Front Center
-	{  0.2,  0.5,  1.0 }, // Top Front Right
-	{ -0.2,  0.5, -0.5 }, // Top Rear Left
-	{  0.2,  0.5, -0.5 }, // Top Rear Center
-	{  0.2,  0.5, -0.5 }, // Top Rear Right
-	{  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 },
-	{  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 },
-	{  0.0,  0.0,  0.0 }, {  0.0,  0.0,  0.0 },
-	{ -0.4,  0.0, -0.5 }, // Rear Surround Left
-	{  0.4,  0.0, -0.5 }, // Rear Surround Right
-	{ -0.4,  0.0,  1.0 }, // Left Wide
-	{  0.4,  0.0,  1.0 }, // Right Wide
-	{  0.0, -0.5,  0.0 }, // Low Frequency Effects 2
-	{ -0.1,  0.0, -0.1 }, // Left Total
-	{  0.1,  0.0, -0.1 }, // Right Total
-	{  0.0,  0.0,  1.0 }, // Hearing Impaired
-	{  0.0,  0.0,  1.0 }, // Narration
-	{  0.0,  0.0,  1.0 }, // Mono
-	{  0.0,  0.0,  1.0 }, // Dialog Centric Mix
-	{  0.0,  0.0, -0.1 }, // Center Surround Direct
-	{  0.0,  0.0,  0.0 }, // Haptic
-	{  0.0,  0.0,  0.0 }, // unused
-	{  0.0,  0.0,  0.0 }, // unused
-	{  0.0,  0.0,  0.0 }, // unused
-	{ -0.2,  0.5,  0.0 }, // Left Top Middle
-	{  0.0,  0.0,  0.0 }, // unused
-	{  0.2,  0.5,  0.0 }, // Right Top Middle
-	{ -0.2,  0.5, -0.5 }, // Left Top Rear
-	{  0.0,  0.5, -0.5 }, // Center Top Rear
-	{  0.2,  0.5, -0.5 }, // Right Top Rear
-	{ -0.4,  0.0, -0.1 }, // Left Side Surround
-	{  0.4,  0.0, -0.1 }, // Right Side Surround
-	{ -0.2, -0.5,  0.0 }, // Left Bottom
-	{  0.2, -0.5,  0.0 }, // Right Bottom
-	{  0.0, -0.5,  0.0 }, // Center Bottom
-	{ -0.4,  0.5, -0.1 }, // Left Top Surround
-	{  0.4,  0.5, -0.1 }, // Right Top Surround
-	{  0.0,  0.0,  0.0 }, // Low Frequency Effects 3
-	{ -0.4,  0.0, -0.5 }, // Left Rear Surround
-	{  0.4,  0.0, -0.5 }, // Right Rear Surround
-	{ -0.1,  0.0,  1.0 }, // Left Edge of Screen
-	{  0.1,  0.0,  1.0 }  // Right Edge of Screen
+	osd::channel_position::UNKNOWN, // unused
+	osd::channel_position::FL, // Front Left
+	osd::channel_position::FR, // Front Right
+	osd::channel_position::FC, // Front Center
+	osd::channel_position::LFE, // Low Frequency Effects
+	osd::channel_position::RL, // Rear Left
+	osd::channel_position::RR, // Rear Right
+	osd::channel_position( -0.1,  0.0,  1.0 ), // Front Left of Center
+	osd::channel_position(  0.1,  0.0,  1.0 ), // Front Right of Center
+	osd::channel_position::RC, // Rear Center
+	osd::channel_position( -0.2,  0.0,  0.5 ), // Side Left
+	osd::channel_position(  0.2,  0.0,  0.5 ), // Side Right
+	osd::channel_position(  0.0,  0.5, -0.1 ), // Top Center
+	osd::channel_position( -0.2,  0.5,  1.0 ), // Top Front Left
+	osd::channel_position(  0.0,  0.5,  1.0 ), // Top Front Center
+	osd::channel_position(  0.2,  0.5,  1.0 ), // Top Front Right
+	osd::channel_position( -0.2,  0.5, -0.5 ), // Top Rear Left
+	osd::channel_position(  0.2,  0.5, -0.5 ), // Top Rear Center
+	osd::channel_position(  0.2,  0.5, -0.5 ), // Top Rear Right
+	osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN,
+	osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN,
+	osd::channel_position::UNKNOWN, osd::channel_position::UNKNOWN,
+	osd::channel_position( -0.4,  0.0, -0.5 ), // Rear Surround Left
+	osd::channel_position(  0.4,  0.0, -0.5 ), // Rear Surround Right
+	osd::channel_position( -0.4,  0.0,  1.0 ), // Left Wide
+	osd::channel_position(  0.4,  0.0,  1.0 ), // Right Wide
+	osd::channel_position::LFE, // Low Frequency Effects 2
+	osd::channel_position::HL, // Left Total
+	osd::channel_position::HR, // Right Total
+	osd::channel_position::FC, // Hearing Impaired
+	osd::channel_position::FC, // Narration
+	osd::channel_position::FC, // Mono
+	osd::channel_position::FC, // Dialog Centric Mix
+	osd::channel_position::HC, // Center Surround Direct
+	osd::channel_position::UNKNOWN, // Haptic
+	osd::channel_position::UNKNOWN, // unused
+	osd::channel_position::UNKNOWN, // unused
+	osd::channel_position::UNKNOWN, // unused
+	osd::channel_position( -0.2,  0.5,  0.0 ), // Left Top Middle
+	osd::channel_position::UNKNOWN, // unused
+	osd::channel_position(  0.2,  0.5,  0.0 ), // Right Top Middle
+	osd::channel_position( -0.2,  0.5, -0.5 ), // Left Top Rear
+	osd::channel_position(  0.0,  0.5, -0.5 ), // Center Top Rear
+	osd::channel_position(  0.2,  0.5, -0.5 ), // Right Top Rear
+	osd::channel_position( -0.4,  0.0, -0.1 ), // Left Side Surround
+	osd::channel_position(  0.4,  0.0, -0.1 ), // Right Side Surround
+	osd::channel_position( -0.2, -0.5,  0.0 ), // Left Bottom
+	osd::channel_position(  0.2, -0.5,  0.0 ), // Right Bottom
+	osd::channel_position(  0.0, -0.5,  0.0 ), // Center Bottom
+	osd::channel_position( -0.4,  0.5, -0.1 ), // Left Top Surround
+	osd::channel_position(  0.4,  0.5, -0.1 ), // Right Top Surround
+	osd::channel_position::UNKNOWN, // Low Frequency Effects 3
+	osd::channel_position( -0.4,  0.0, -0.5 ), // Left Rear Surround
+	osd::channel_position(  0.4,  0.0, -0.5 ), // Right Rear Surround
+	osd::channel_position( -0.1,  0.0,  1.0 ), // Left Edge of Screen
+	osd::channel_position(  0.1,  0.0,  1.0 )  // Right Edge of Screen
 };
 
 struct coreaudio_device
@@ -1064,7 +1064,7 @@ void sound_coreaudio::build_device_list()
 						{
 							std::string chLabel = "Channel " + std::to_string(desc + 1);
 							node.m_port_names.push_back(chLabel);
-							node.m_port_positions.emplace_back(std::array<double, 3>({0.0, 0.0, 1.0}));
+							node.m_port_positions.emplace_back(osd::channel_position::FC);
 						}
 						else
 						{

src/osd/modules/sound/mmdevice_helpers.cpp

@@ -48,25 +48,25 @@ char const *const f_speaker_names[] ={
 		"TBC",      // SPEAKER_TOP_BACK_CENTER
 		"TBR" };    // SPEAKER_TOP_BACK_RIGHT
 
-std::array<double, 3> const f_speaker_positions[] = {
-		{ -0.2,  0.0,  1.0 },   // SPEAKER_FRONT_LEFT
-		{  0.2,  0.0,  1.0 },   // SPEAKER_FRONT_RIGHT
-		{  0.0,  0.0,  1.0 },   // SPEAKER_FRONT_CENTER
-		{  0.0, -0.5,  1.0 },   // SPEAKER_LOW_FREQUENCY
-		{ -0.2,  0.0, -0.5 },   // SPEAKER_BACK_LEFT
-		{  0.2,  0.0, -0.5 },   // SPEAKER_BACK_RIGHT
-		{ -0.1,  0.0,  1.0 },   // SPEAKER_FRONT_LEFT_OF_CENTER
-		{  0.1,  0.0,  1.0 },   // SPEAKER_FRONT_RIGHT_OF_CENTER
-		{  0.0,  0.0, -0.5 },   // SPEAKER_BACK_CENTER
-		{ -0.2,  0.0,  0.0 },   // SPEAKER_SIDE_LEFT
-		{  0.2,  0.0,  0.0 },   // SPEAKER_SIDE_RIGHT
-		{  0.0,  0.5,  0.0 },   // SPEAKER_TOP_CENTER
-		{ -0.2,  0.5,  1.0 },   // SPEAKER_TOP_FRONT_LEFT
-		{  0.0,  0.5,  1.0 },   // SPEAKER_TOP_FRONT_CENTER
-		{  0.2,  0.5,  1.0 },   // SPEAKER_TOP_FRONT_RIGHT
-		{ -0.2,  0.5, -0.5 },   // SPEAKER_TOP_BACK_LEFT
-		{  0.0,  0.5, -0.5 },   // SPEAKER_TOP_BACK_CENTER
-		{  0.2,  0.5, -0.5 } }; // SPEAKER_TOP_BACK_RIGHT
+osd::channel_position const f_speaker_positions[] = {
+		osd::channel_position::FL,                   // SPEAKER_FRONT_LEFT
+		osd::channel_position::FR,                   // SPEAKER_FRONT_RIGHT
+		osd::channel_position::FC,                   // SPEAKER_FRONT_CENTER
+		osd::channel_position::LFE,                  // SPEAKER_LOW_FREQUENCY
+		osd::channel_position::RL,                   // SPEAKER_BACK_LEFT
+		osd::channel_position::RR,                   // SPEAKER_BACK_RIGHT
+		osd::channel_position( -0.1,  0.0,  1.0 ),   // SPEAKER_FRONT_LEFT_OF_CENTER
+		osd::channel_position(  0.1,  0.0,  1.0 ),   // SPEAKER_FRONT_RIGHT_OF_CENTER
+		osd::channel_position::RC,                   // SPEAKER_BACK_CENTER
+		osd::channel_position( -0.2,  0.0,  0.0 ),   // SPEAKER_SIDE_LEFT
+		osd::channel_position(  0.2,  0.0,  0.0 ),   // SPEAKER_SIDE_RIGHT
+		osd::channel_position(  0.0,  0.5,  0.0 ),   // SPEAKER_TOP_CENTER
+		osd::channel_position( -0.2,  0.5,  1.0 ),   // SPEAKER_TOP_FRONT_LEFT
+		osd::channel_position(  0.0,  0.5,  1.0 ),   // SPEAKER_TOP_FRONT_CENTER
+		osd::channel_position(  0.2,  0.5,  1.0 ),   // SPEAKER_TOP_FRONT_RIGHT
+		osd::channel_position( -0.2,  0.5, -0.5 ),   // SPEAKER_TOP_BACK_LEFT
+		osd::channel_position(  0.0,  0.5, -0.5 ),   // SPEAKER_TOP_BACK_CENTER
+		osd::channel_position(  0.2,  0.5, -0.5 ) }; // SPEAKER_TOP_BACK_RIGHT
 
 } // anonymous namespace
 

src/osd/modules/sound/pa_sound.cpp

@@ -101,17 +101,17 @@ int sound_pa::init(osd_interface &osd, osd_options const &options)
 	enum { FL, FR, FC, LFE, BL, BR, BC, SL, SR, AUX };
 	static const char *const posname[10] = { "FL", "FR", "FC", "LFE", "BL", "BR", "BC", "SL", "SR", "AUX" };
 
-	static const std::array<double, 3> pos3d[10] = {
-		{ -0.2,  0.0,  1.0 },
-		{  0.2,  0.0,  1.0 },
-		{  0.0,  0.0,  1.0 },
-		{  0.0, -0.5,  1.0 },
-		{ -0.2,  0.0, -0.5 },
-		{  0.2,  0.0, -0.5 },
-		{  0.0,  0.0, -0.5 },
-		{ -0.2,  0.0,  0.0 },
-		{  0.2,  0.0,  0.0 },
-		{  0.0,  0.0, 10.0 },
+	static const osd::channel_position pos3d[10] = {
+		osd::channel_position::FL,
+		osd::channel_position::FR,
+		osd::channel_position::FC,
+		osd::channel_position::LFE,
+		osd::channel_position::RL,
+		osd::channel_position::RR,
+		osd::channel_position::RC,
+		osd::channel_position(-0.2,  0.0,  0.0),
+		osd::channel_position( 0.2,  0.0,  0.0),
+		osd::channel_position::ONREQ
 	};
 
 	static const uint32_t positions[9][9] = {

src/osd/modules/sound/pipewire_sound.cpp

@@ -53,7 +53,7 @@ public:
 private:
 	struct position_info {
 		uint32_t m_position;
-		std::array<double, 3> m_coords;
+		osd::channel_position m_coords;
 	};
 
 	static const position_info position_infos[];
@@ -73,7 +73,7 @@ private:
 		uint32_t m_sinks, m_sources;
 		std::vector<uint32_t> m_position_codes;
 		std::vector<std::string> m_port_names;
-		std::vector<std::array<double, 3>> m_positions;
+		std::vector<osd::channel_position> m_positions;
 
 		osd::audio_rate_range m_rate;
 		bool m_has_s16;
@@ -165,16 +165,16 @@ private:
 // Try to more or less map to speaker.h positions
 
 const sound_pipewire::position_info sound_pipewire::position_infos[] = {
-	{ SPA_AUDIO_CHANNEL_MONO,    {  0.0,  0.0,  1.0 } },
-	{ SPA_AUDIO_CHANNEL_FL,      { -0.2,  0.0,  1.0 } },
-	{ SPA_AUDIO_CHANNEL_FR,      {  0.2,  0.0,  1.0 } },
-	{ SPA_AUDIO_CHANNEL_FC,      {  0.0,  0.0,  1.0 } },
-	{ SPA_AUDIO_CHANNEL_LFE,     {  0.0, -0.5,  1.0 } },
-	{ SPA_AUDIO_CHANNEL_RL,      { -0.2,  0.0, -0.5 } },
-	{ SPA_AUDIO_CHANNEL_RR,      {  0.2,  0.0, -0.5 } },
-	{ SPA_AUDIO_CHANNEL_RC,      {  0.0,  0.0, -0.5 } },
-	{ SPA_AUDIO_CHANNEL_AUX0,    {  0.0,  0.0, 10.0 } },
-	{ SPA_AUDIO_CHANNEL_UNKNOWN, {  0.0,  0.0,  0.0 } }
+	{ SPA_AUDIO_CHANNEL_MONO,    osd::channel_position::FC },
+	{ SPA_AUDIO_CHANNEL_FL,      osd::channel_position::FL },
+	{ SPA_AUDIO_CHANNEL_FR,      osd::channel_position::FR },
+	{ SPA_AUDIO_CHANNEL_FC,      osd::channel_position::FC },
+	{ SPA_AUDIO_CHANNEL_LFE,     osd::channel_position::LFE },
+	{ SPA_AUDIO_CHANNEL_RL,      osd::channel_position::RL },
+	{ SPA_AUDIO_CHANNEL_RR,      osd::channel_position::RR },
+	{ SPA_AUDIO_CHANNEL_RC,      osd::channel_position::RC },
+	{ SPA_AUDIO_CHANNEL_AUX0,    osd::channel_position::ONREQ },
+	{ SPA_AUDIO_CHANNEL_UNKNOWN, osd::channel_position::UNKNOWN }
 
 };
 

src/osd/modules/sound/pulse_sound.cpp

@@ -45,7 +45,7 @@ public:
 private:
 	struct position_info {
 		pa_channel_position_t m_position;
-		std::array<double, 3> m_coords;
+		osd::channel_position m_coords;
 	};
 
 	static const position_info position_infos[];
@@ -61,7 +61,7 @@ private:
 		// Audio node info
 		std::vector<pa_channel_position_t> m_position_codes;
 		std::vector<std::string> m_position_names;
-		std::vector<std::array<double, 3>> m_positions;
+		std::vector<osd::channel_position> m_positions;
 		uint32_t m_sink_port_count, m_source_port_count;
 
 		osd::audio_rate_range m_rate;
@@ -122,15 +122,15 @@ private:
 // Try to more or less map to speaker.h positions
 
 const sound_pulse::position_info sound_pulse::position_infos[] = {
-	{ PA_CHANNEL_POSITION_MONO,         {  0.0,  0.0,  1.0 } },
-	{ PA_CHANNEL_POSITION_FRONT_LEFT,   { -0.2,  0.0,  1.0 } },
-	{ PA_CHANNEL_POSITION_FRONT_RIGHT,  {  0.2,  0.0,  1.0 } },
-	{ PA_CHANNEL_POSITION_FRONT_CENTER, {  0.0,  0.0,  1.0 } },
-	{ PA_CHANNEL_POSITION_LFE,          {  0.0, -0.5,  1.0 } },
-	{ PA_CHANNEL_POSITION_REAR_LEFT,    { -0.2,  0.0, -0.5 } },
-	{ PA_CHANNEL_POSITION_REAR_RIGHT,   {  0.2,  0.0, -0.5 } },
-	{ PA_CHANNEL_POSITION_REAR_CENTER,  {  0.0,  0.0, -0.5 } },
-	{ PA_CHANNEL_POSITION_MAX,          {  0.0,  0.0, 10.0 } }
+	{ PA_CHANNEL_POSITION_MONO,         osd::channel_position::FC },
+	{ PA_CHANNEL_POSITION_FRONT_LEFT,   osd::channel_position::FL },
+	{ PA_CHANNEL_POSITION_FRONT_RIGHT,  osd::channel_position::FR },
+	{ PA_CHANNEL_POSITION_FRONT_CENTER, osd::channel_position::FC },
+	{ PA_CHANNEL_POSITION_LFE,          osd::channel_position::LFE },
+	{ PA_CHANNEL_POSITION_REAR_LEFT,    osd::channel_position::RL },
+	{ PA_CHANNEL_POSITION_REAR_RIGHT,   osd::channel_position::RR },
+	{ PA_CHANNEL_POSITION_REAR_CENTER,  osd::channel_position::RC },
+	{ PA_CHANNEL_POSITION_MAX,          osd::channel_position::ONREQ },
 };
 
 

src/osd/modules/sound/sdl_sound.cpp

@@ -148,17 +148,17 @@ osd::audio_info sound_sdl::get_information()
 	enum { FL, FR, FC, LFE, BL, BR, BC, SL, SR, AUX };
 	static const char *const posname[10] = { "FL", "FR", "FC", "LFE", "BL", "BR", "BC", "SL", "SR", "AUX" };
 
-	static std::array<double, 3> pos3d[10] = {
-		{ -0.2,  0.0,  1.0 },
-		{  0.2,  0.0,  1.0 },
-		{  0.0,  0.0,  1.0 },
-		{  0.0, -0.5,  1.0 },
-		{ -0.2,  0.0, -0.5 },
-		{  0.2,  0.0, -0.5 },
-		{  0.0,  0.0, -0.5 },
-		{ -0.2,  0.0,  0.0 },
-		{  0.2,  0.0,  0.0 },
-		{  0.0,  0.0, 10.0 },
+	static const osd::channel_position pos3d[10] = {
+		osd::channel_position::FL,
+		osd::channel_position::FR,
+		osd::channel_position::FC,
+		osd::channel_position::LFE,
+		osd::channel_position::RL,
+		osd::channel_position::RR,
+		osd::channel_position::RC,
+		osd::channel_position(-0.2,  0.0,  0.0),
+		osd::channel_position( 0.2,  0.0,  0.0),
+		osd::channel_position::ONREQ
 	};
 
 	static const uint32_t positions[8][9] = {

src/osd/modules/sound/sound_module.cpp

@@ -30,8 +30,8 @@ osd::audio_info sound_module::get_information()
 	result.m_nodes[0].m_sources = 0;
 	result.m_nodes[0].m_port_names.emplace_back("L");
 	result.m_nodes[0].m_port_names.emplace_back("R");
-	result.m_nodes[0].m_port_positions.emplace_back(std::array<double, 3>({ -0.2, 0.0, 1.0 }));
-	result.m_nodes[0].m_port_positions.emplace_back(std::array<double, 3>({  0.2, 0.0, 1.0 }));
+	result.m_nodes[0].m_port_positions.emplace_back(osd::channel_position::FL);
+	result.m_nodes[0].m_port_positions.emplace_back(osd::channel_position::FR);
 	result.m_streams.resize(1);
 	result.m_streams[0].m_id = 1;
 	result.m_streams[0].m_node = 1;
@@ -40,13 +40,18 @@ osd::audio_info sound_module::get_information()
 
 sound_module::abuffer::abuffer(uint32_t channels) noexcept : m_channels(channels), m_used_buffers(0), m_last_sample(channels, 0)
 {
+	m_delta = 0;
+	m_delta2 = 0;
 }
 
 void sound_module::abuffer::get(int16_t *data, uint32_t samples) noexcept
 {
+	m_delta -= samples;
+	m_delta2 -= samples;
 	uint32_t pos = 0;
 	while(pos != samples) {
 		if(!m_used_buffers) {
+			m_delta2 += samples - pos;
 			while(pos != samples) {
 				std::copy_n(m_last_sample.data(), m_channels, data);
 				data += m_channels;
@@ -74,10 +79,13 @@ void sound_module::abuffer::get(int16_t *data, uint32_t samples) noexcept
 		pos += avail;
 		data += avail * m_channels;
 	}
+	//	printf("# %d %d\n", m_delta, m_delta2);
 }
 
 void sound_module::abuffer::push(const int16_t *data, uint32_t samples)
 {
+	m_delta += samples;
+	m_delta2 += samples;
 	auto &buf = push_buffer();
 	buf.m_cpos = 0;
 	buf.m_data.resize(samples * m_channels);
@@ -85,6 +93,8 @@ void sound_module::abuffer::push(const int16_t *data, uint32_t samples)
 	std::copy_n(data + ((samples - 1) * m_channels), m_channels, m_last_sample.data());
 
 	if(m_used_buffers > 10) {
+		for(uint32_t i=0; i != m_used_buffers-10; i++)
+			m_delta2 -= (m_buffers[i].m_data.size()/m_channels - m_buffers[i].m_cpos);
 		// If there are way too many buffers, drop some so only 10 are left (roughly 0.2s)
 		for(unsigned i = 0; 10 > i; ++i) {
 			using std::swap;
@@ -95,8 +105,10 @@ void sound_module::abuffer::push(const int16_t *data, uint32_t samples)
 		// If there are too many buffers, remove five samples per buffer
 		// to slowly resync to reduce latency (4 seconds to
 		// compensate one buffer, roughly)
+		m_delta2 -= std::max<uint32_t>(samples / 200, 1);
 		buf.m_cpos = std::max<uint32_t>(samples / 200, 1);
 	}
+	//	printf("# %d %d\n", m_delta, m_delta2);
 }
 
 uint32_t sound_module::abuffer::available() const noexcept

src/osd/modules/sound/sound_module.h

@@ -63,6 +63,7 @@ protected:
 		void pop_buffer() noexcept;
 		buffer &push_buffer();
 
+		int32_t m_delta, m_delta2;
 		uint32_t m_channels;
 		uint32_t m_used_buffers;
 		std::vector<int16_t> m_last_sample;