Added state processing stage

CMakeLists.txt

@@ -27,7 +27,7 @@ pico_sdk_init()
  
 file(GLOB_RECURSE DAISYSP_SOURCES "${CMAKE_CURRENT_LIST_DIR}/daisysp/**/*.cpp")
  
-add_executable(sint-gauntlet ${DAISYSP_SOURCES} main.c input.c pwm.c synth.cc)
+add_executable(sint-gauntlet ${DAISYSP_SOURCES} main.c input.c state.c pwm.c synth.cc)
  
 pico_set_program_name(sint-gauntlet "sint-gauntlet")
 pico_set_program_version(sint-gauntlet "0.1")

input.c

@@ -2,8 +2,9 @@
 #include <hardware/gpio.h>
 #include <pico/stdlib.h>
 #include <pico/time.h>
-#include <stdint.h>
 #include <sys/types.h>
+#include <stdint.h>
+#include <math.h>
 
 #include "const.h"
 
@@ -20,13 +21,14 @@ void set_mux_addr(uint8_t addr) {
 
 void update_inputs(input_t* input) {
 	// Pots
-	for (uint8_t i = 0; i < 8; i++) {
-		set_mux_addr(i);
 	for (uint8_t j = 0; j < 2; j++) {
 		adc_select_input(j);
-			sleep_us(20); // Let multiplexers multiplex
-			uint16_t val = adc_read();
-			if (val > 5) input->pots[i + j * 8] = (float)val;
+		for (uint8_t i = 0; i < 8; i++) {
+			set_mux_addr(i);
+			sleep_us(50); // Let multiplexers multiplex
+			float old_val = input->buttons[i + j * 8];
+			float new_val = (float)adc_read() / 4096.0f;
+			if (fabs(new_val - old_val) >= 0.01f) input->pots[i + j * 8] = new_val;
 		}
 	}
 	

main.c

@@ -39,7 +39,7 @@ void core0_init(void) {
 	puts("PWM Initialized.");
 
 	// Synth
-	synth_init();
+	synth_init(&state);
 	puts("Synth Initialized.");
 }
 
@@ -73,6 +73,7 @@ void core1_init(void) {
 noreturn void core1_loop(void) {
 	while (1) {
 		update_inputs(&input);
+		update_state(&state, &input);
 		printf("%d %f\n", input.buttons[0], input.pots[0]);
 		printf("%d\n", input.buttons[1]);
 		printf("%d\n", input.buttons[2]);

pwm.c

@@ -2,7 +2,6 @@
 #include <pico/types.h>
 
 #include "const.h"
-#include "state.h"
 #include "synth.h"
 
 #include "pwm.h"
@@ -15,7 +14,6 @@ void pwm_isr(void) {
 	pwm_clear_irq(slice);
 
 	float sample = get_sample();
-	state.dbg_sample = sample;
 
 	uint16_t level = (uint16_t)((sample + 1.0f) * 0.5f * 3400.0f);
 	pwm_set_chan_level(slice, chan, level);

state.c

@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+#include "input.h"
+
+#include "state.h"
+
+void update_state(state_t* state, input_t* input) {
+	puts("AHHHHHH");
+}
+

state.h

@@ -2,30 +2,28 @@
 
 #include <stdint.h>
 #include <stdbool.h>
+#include "input.h"
 #include "vco.h"
 
 typedef struct {
-	union {
-		struct {
 	float		clock_bpm;
+
 	float		vco_freq;
 	float		vco_volume;
+	vco_mode_t	vco_mode;
+
 	float		filter_freq;
 	float		filter_resonance;
+
 	float		env1_attack;
 	float		env1_release;
 	float		env2_attack;
 	float		env2_release;
+
 	float		reverb_amount;
-		};
-		float array[16];
-	};
-	vco_mode_t	vco_mode;
 	bool		quant_enabled;
 	bool		amen_enabled;
-
-	float dbg_sample;
 } state_t;
 
-extern state_t state;
+void update_state(state_t* state, input_t* input);
 

synth.cc

@@ -11,6 +11,8 @@
 
 using namespace daisysp;
 
+static state_t* state;
+
 Oscillator osc;
 Svf filter;
 AdEnv vco_env;
@@ -97,7 +99,7 @@ float amenbreak(float beat_samples, float playback_rate) {
 	return amen_out;
 }
 
-void synth_init(void) {
+void synth_init(state_t* state) {
 	osc.Init(SAMPLE_RATE);
 	osc.SetWaveform(vco_mode_to_daisy(VCO_SAW));
 	osc.SetFreq(440.0f);
@@ -119,18 +121,18 @@ void synth_init(void) {
 	filter_env.SetMin(0.0f);
 	filter_env.SetMax(2000.0f);
 
-	state.clock_bpm = 0.1f;
+	state->clock_bpm = 0.1f;
 
 	clock_phase = 0.0f;
 	clock_trig = false;
 
 	amen_phase = 0.0f;
-	state.amen_enabled = true;
-	state.reverb_amount = 1.0;
+	state->amen_enabled = true;
+	state->reverb_amount = 1.0;
 }
 
 float get_sample(void) {
-	float bpm = BPM_MIN + state.clock_bpm * (BPM_MAX - BPM_MIN);
+	float bpm = BPM_MIN + state->clock_bpm * (BPM_MAX - BPM_MIN);
 	float beat_samples = SAMPLE_RATE * 60.0f / bpm;
 	float playback_rate = bpm / AMEN_BPM;
 
@@ -147,16 +149,16 @@ float get_sample(void) {
 		filter_env.Trigger();
 	}
 
-	//vco_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state.env1_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
-	//vco_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state.env1_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
-	//filter_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state.env2_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
-	//filter_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state.env2_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
+	vco_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state->env1_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
+	vco_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state->env1_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
+	filter_env.SetTime(ADENV_SEG_ATTACK, pot_to_time(state->env2_attack, ENV_ATTACK_MIN, ENV_ATTACK_MAX));
+	filter_env.SetTime(ADENV_SEG_DECAY, pot_to_time(state->env2_release, ENV_RELEASE_MIN, ENV_RELEASE_MAX));
 	
 	float vco_env_out = vco_env.Process();
 	float filter_env_out = filter_env.Process();
 
-	float vco_freq = pot_to_freq(state.vco_freq, VCO_FREQ_MIN, VCO_FREQ_MAX);
-	if (state.quant_enabled) vco_freq = quantize(vco_freq, 12.0f);
+	float vco_freq = pot_to_freq(state->vco_freq, VCO_FREQ_MIN, VCO_FREQ_MAX);
+	if (state->quant_enabled) vco_freq = quantize(vco_freq, 12.0f);
 
 	//osc.SetFreq(vco_freq);
 	static int n = VCO_SINE;
@@ -165,7 +167,7 @@ float get_sample(void) {
 
 	float vco_out = osc.Process();
 
-	float base_cutoff = pot_to_freq(state.filter_freq, FILTER_FREQ_MIN, FILTER_FREQ_MAX);
+	float base_cutoff = pot_to_freq(state->filter_freq, FILTER_FREQ_MIN, FILTER_FREQ_MAX);
 	float mod_cutoff = base_cutoff + filter_env_out * (FILTER_FREQ_MAX - FILTER_FREQ_MIN);
 	mod_cutoff = fclamp(mod_cutoff, FILTER_FREQ_MIN, FILTER_FREQ_MAX);
 
@@ -179,7 +181,7 @@ float get_sample(void) {
 	float reverb_out = vca_out; //reverb(vca_out, state.reverb_amount);
 
 	float amen_out = 0.0f;
-	if (state.amen_enabled) amen_out = amenbreak(beat_samples, playback_rate);
+	if (state->amen_enabled) amen_out = amenbreak(beat_samples, playback_rate);
 
 	float mix = reverb_out + amen_out;
 	mix = fclamp(mix, -1.0f, 1.0f);

synth.h

@@ -1,5 +1,7 @@
 #pragma once
 
+#include "state.h"
+
 #define COMB0_SIZE 1103
 #define COMB1_SIZE 1361
 #define COMB2_SIZE 1499
@@ -11,7 +13,7 @@
 extern "C" {
 #endif
 
-void synth_init(void);
+void synth_init(state_t* state);
 float get_sample(void);
 
 #ifdef __cplusplus