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Implement support for multiple hidden parameters

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Jan-Henrik 2020-05-09 14:13:30 +02:00
parent 8b4f02e919
commit f741f25f93
3 changed files with 65 additions and 56 deletions
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111
stereo_mix/pot_controller.h
View file

@ -39,9 +39,8 @@
#pragma once
#include "stmlib/stmlib.h"
#include "stmlib/dsp/dsp.h"
#include "stmlib/stmlib.h"
enum PotState {
POT_STATE_TRACKING,
@ -50,42 +49,51 @@ enum PotState {
POT_STATE_CATCHING_UP
};
template<size_t hidden_parameter_count>
class PotController {
public:
public:
PotController() { }
~PotController() { }
inline void Init(
uint16_t* main_parameter,
uint16_t* hidden_parameter // this pot controller always works on values between 0 and 65535
) {
uint16_t* hidden_parameters[hidden_parameter_count]) // this pot controller always works on values between 0 and 65535
{
state_ = POT_STATE_TRACKING;
was_catching_up_ = false;
main_parameter_ = main_parameter;
hidden_parameter_ = hidden_parameter;
current_hidden_parameter_ = 0;
for(size_t i = 0; i < hidden_parameter_count; i++)
hidden_parameters_[i] = hidden_parameters[i];
value_ = 0;
stored_value_ = 0;
previous_value_ = 0;
}
inline void Lock() {
inline void Lock(uint8_t selected_parameter)
{
if (selected_parameter > hidden_parameter_count)
return;
if (state_ == POT_STATE_LOCKING || state_ == POT_STATE_HIDDEN_PARAMETER) {
return;
}
if (hidden_parameter_) {
if (hidden_parameters_[selected_parameter]) {
current_hidden_parameter_ = selected_parameter;
was_catching_up_ = state_ == POT_STATE_CATCHING_UP;
state_ = POT_STATE_LOCKING;
}
}
inline bool editing_hidden_parameter() const {
inline bool editing_hidden_parameter() const
{
return state_ == POT_STATE_HIDDEN_PARAMETER;
}
inline void Unlock() {
inline void Unlock()
{
if (state_ == POT_STATE_HIDDEN_PARAMETER || was_catching_up_) {
state_ = POT_STATE_CATCHING_UP;
} else {
@ -93,11 +101,13 @@ class PotController {
}
}
inline void Realign() {
inline void Realign()
{
state_ = POT_STATE_TRACKING;
}
inline void ProcessControlRate(uint16_t adc_value) {
inline void ProcessControlRate(uint16_t adc_value)
{
value_ += (adc_value - value_) >> 6;
CONSTRAIN(value_, 0, 65535);
// approximately this:
@ -108,63 +118,60 @@ class PotController {
}
}
inline void ProcessUIRate() {
inline void ProcessUIRate()
{
switch (state_) {
case POT_STATE_TRACKING:
previous_value_ = value_;
break;
case POT_STATE_TRACKING:
previous_value_ = value_;
break;
case POT_STATE_LOCKING:
if (abs(value_ - previous_value_) > 1966) {
stored_value_ = previous_value_;
CONSTRAIN(value_, 0, 65535);
*hidden_parameter_ = value_;
state_ = POT_STATE_HIDDEN_PARAMETER;
previous_value_ = value_;
}
break;
case POT_STATE_HIDDEN_PARAMETER:
case POT_STATE_LOCKING:
if (abs(value_ - previous_value_) > 1966) {
stored_value_ = previous_value_;
CONSTRAIN(value_, 0, 65535);
*hidden_parameter_ = value_;
*hidden_parameters_[current_hidden_parameter_] = value_;
state_ = POT_STATE_HIDDEN_PARAMETER;
previous_value_ = value_;
break;
}
break;
case POT_STATE_CATCHING_UP:
{
if (abs(value_ - previous_value_) > 327) {
int32_t delta = value_ - previous_value_;
case POT_STATE_HIDDEN_PARAMETER:
CONSTRAIN(value_, 0, 65535);
*hidden_parameters_[current_hidden_parameter_] = value_;
previous_value_ = value_;
break;
int32_t skew_ratio = delta > 0
? (65600 - stored_value_) / (65600 - previous_value_)
: (66 + stored_value_) / (66 + previous_value_);
CONSTRAIN(skew_ratio, 6553, 655350);
case POT_STATE_CATCHING_UP: {
if (abs(value_ - previous_value_) > 327) {
int32_t delta = value_ - previous_value_;
stored_value_ += (skew_ratio * delta) >> 11;
CONSTRAIN(stored_value_, 0, 65535);
int32_t skew_ratio = delta > 0
? (65600 - stored_value_) / (65600 - previous_value_)
: (66 + stored_value_) / (66 + previous_value_);
CONSTRAIN(skew_ratio, 6553, 655350);
if (abs(stored_value_ - value_) < 327) {
state_ = POT_STATE_TRACKING;
}
previous_value_ = value_;
*main_parameter_ = stored_value_;
}
stored_value_ += (skew_ratio * delta) >> 11;
CONSTRAIN(stored_value_, 0, 65535);
if (abs(stored_value_ - value_) < 327) {
state_ = POT_STATE_TRACKING;
}
break;
previous_value_ = value_;
*main_parameter_ = stored_value_;
}
} break;
}
}
private:
private:
PotState state_;
bool was_catching_up_;
uint16_t* main_parameter_;
uint16_t* hidden_parameter_;
uint16_t* hidden_parameters_[hidden_parameter_count];
uint8_t current_hidden_parameter_;
int32_t value_;
int32_t stored_value_;
int32_t previous_value_;
DISALLOW_COPY_AND_ASSIGN(PotController);
};

2
stereo_mix/ui.cc
View file

@ -13,7 +13,7 @@ void UI::Poll()
press_time[i] = HAL_GetTick();
ignore_release[i] = false;
for (size_t j = 0; j < kNumChannels * 2; j++)
potControllers[j].Lock();
potControllers[j].Lock(i);
}
if (switches->pressed(Switch(i)) && !ignore_release[i]) {
bool suppress_release_hidden_parameters = false;

8
stereo_mix/ui.h
View file

@ -22,8 +22,10 @@ class UI {
queue.Init();
for (size_t i = 0; i < kNumChannels; i++) {
potControllers[i].Init(&volume_pots[i], &volume_att_pots[i]);
potControllers[i + kNumChannels].Init(&pan_pots[i], &pan_att_pots[i]);
uint16_t* volume_hidden_params[kNumChannels] = {&volume_att_pots[i], &volume_att_pots[i], &volume_att_pots[i], &volume_att_pots[i]};
potControllers[i].Init(&volume_pots[i], volume_hidden_params);
uint16_t* pan_hidden_params[kNumChannels] = {&pan_att_pots[i], &pan_att_pots[i], &pan_att_pots[i], &pan_att_pots[i]};
potControllers[i + kNumChannels].Init(&pan_pots[i], pan_hidden_params);
volume_att_pots[i] = pan_att_pots[i] = 65535;
}
@ -62,5 +64,5 @@ class UI {
uint32_t last_pan_pot_touch[kNumChannels];
uint32_t last_vol_pot_touch[kNumChannels];
PotController potControllers[kNumChannels * 2]; // todo: count
PotController<kNumChannels> potControllers[kNumChannels * 2]; // todo: count
};