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MicroDexed
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Added function for setting max acceptable notes.

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Limited to 10 notes at a time to avoid xruns.
pull/4/head
Holger Wirtz 7 years ago
parent bbebaa85d3
commit ba27df8a81
3 changed files with 80 additions and 64 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 63
      MicroDexed.ino
  2. 70
      dexed.cpp
  3. 9
      dexed.h

63
MicroDexed.ino
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@ -14,14 +14,14 @@
#include <MIDI.h>
#include "dexed.h"
#define AUDIO_MEM 32
#define AUDIO_MEM 2
#define AUDIO_BUFFER_SIZE 128
#define SAMPLEAUDIO_BUFFER_SIZE 44100
#define INIT_AUDIO_QUEUE 1
//#define SHOW_DEXED_TIMING 1
#define SHOW_XRUN 1
#define SHOW_CPU_LOAD
#define SHOW_CPU_LOAD_MSEC 5000
#define MAX_NOTES 10
#define TEST_MIDI 1
#define TEST_NOTE 40
#define TEST_VEL 60
@ -40,7 +40,7 @@ IntervalTimer sched;
void setup()
{
while (!Serial) ; // wait for Arduino Serial Monitor
//while (!Serial) ; // wait for Arduino Serial Monitor
Serial.begin(115200);
Serial.println(F("MicroDexed based on https://github.com/asb2m10/dexed"));
Serial.println(F("(c)2018 H. Wirtz"));
@ -56,7 +56,7 @@ void setup()
sgtl5000_1.volume(0.2);
// Initialize processor and memory measurements
#ifdef SHOW_CPU_LOAD
#ifdef SHOW_CPU_LOAD_MSEC
AudioProcessorUsageMaxReset();
AudioMemoryUsageMaxReset();
#endif
@ -75,6 +75,7 @@ void setup()
#endif
dexed->activate();
dexed->setMaxNotes(MAX_NOTES);
#ifdef TEST_MIDI
@ -89,17 +90,18 @@ void setup()
queue_midi_event(0x90, TEST_NOTE + 32, TEST_VEL); // 9
queue_midi_event(0x90, TEST_NOTE + 37, TEST_VEL); // 10
queue_midi_event(0x90, TEST_NOTE + 40, TEST_VEL); // 11
//queue_midi_event(0x90, TEST_NOTE + 44, TEST_VEL); // 12
//queue_midi_event(0x90, TEST_NOTE + 49, TEST_VEL); // 13
//queue_midi_event(0x90, TEST_NOTE + 52, TEST_VEL); // 14
//queue_midi_event(0x90, TEST_NOTE + 57, TEST_VEL); // 15
//queue_midi_event(0x90, TEST_NOTE + 60, TEST_VEL); // 16
queue_midi_event(0x90, TEST_NOTE + 44, TEST_VEL); // 12
queue_midi_event(0x90, TEST_NOTE + 49, TEST_VEL); // 13
queue_midi_event(0x90, TEST_NOTE + 52, TEST_VEL); // 14
queue_midi_event(0x90, TEST_NOTE + 57, TEST_VEL); // 15
queue_midi_event(0x90, TEST_NOTE + 60, TEST_VEL); // 16
#endif
#ifdef SHOW_CPU_LOAD
sched.begin(cpu_and_mem_usage, SHOW_CPU_LOAD_MSEC*1000);
#ifdef SHOW_CPU_LOAD_MSEC
sched.begin(cpu_and_mem_usage, SHOW_CPU_LOAD_MSEC * 1000);
#endif
Serial.println(F("setup end"));
cpu_and_mem_usage();
}
void loop()
@ -107,32 +109,35 @@ void loop()
int16_t* audio_buffer; // pointer to 128 * int16_t
bool break_for_calculation;
audio_buffer = queue1.getBuffer();
if (audio_buffer == NULL)
while (42 == 42) // DON'T PANIC!
{
Serial.println(F("audio_buffer allocation problems!"));
}
audio_buffer = queue1.getBuffer();
if (audio_buffer == NULL)
{
Serial.println(F("audio_buffer allocation problems!"));
}
while (MIDI.read())
{
break_for_calculation = dexed->ProcessMidiMessage(MIDI.getType(), MIDI.getData1(), MIDI.getData2());
if (break_for_calculation == true)
break;
}
while (MIDI.read())
{
break_for_calculation = dexed->ProcessMidiMessage(MIDI.getType(), MIDI.getData1(), MIDI.getData2());
if (break_for_calculation == true)
break;
}
#if defined(SHOW_DEXED_TIMING) || defined(SHOW_XRUN)
elapsedMicros t1;
elapsedMicros t1;
#endif
dexed->GetSamples(AUDIO_BUFFER_SIZE, audio_buffer);
dexed->GetSamples(AUDIO_BUFFER_SIZE, audio_buffer);
#ifdef SHOW_XRUN
uint32_t t2 = t1;
if (t2 > 2900)
Serial.println(F("xrun"));
uint32_t t2 = t1;
if (t2 > 2900)
Serial.println(F("xrun"));
#endif
#ifdef SHOW_DEXED_TIMING
Serial.println(t1, DEC);
Serial.println(t1, DEC);
#endif
queue1.playBuffer();
queue1.playBuffer();
}
}
bool queue_midi_event(uint8_t type, uint8_t data1, uint8_t data2)
@ -140,7 +145,7 @@ bool queue_midi_event(uint8_t type, uint8_t data1, uint8_t data2)
return (dexed->ProcessMidiMessage(type, data1, data2));
}
#ifdef SHOW_CPU_LOAD
#ifdef SHOW_CPU_LOAD_MSEC
void cpu_and_mem_usage(void)
{
Serial.print(F("CPU:"));

70
dexed.cpp
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@ -106,7 +106,7 @@ Dexed::~Dexed()
{
currentNote = -1;
for (uint8_t note = 0; note < MAX_ACTIVE_NOTES; ++note)
for (uint8_t note = 0; note < MAX_ACTIVE_NOTES; note++)
delete voices[note].dx7_note;
delete(engineMsfa);
@ -195,45 +195,45 @@ void Dexed::GetSamples(uint16_t n_samples, int16_t* buffer)
extra_buf_size_ = i - n_samples;
}
/* if (++_k_rate_counter == 0 && !monoMode)
{
uint8_t op_carrier = controllers.core->get_carrier_operators(data[134]); // look for carriers
for (i = 0; i < max_notes; i++)
/* if (++_k_rate_counter == 0 && !monoMode)
{
if (voices[i].live == true)
{
uint8_t op_amp = 0;
uint8_t op_carrier_num = 0;
uint8_t op_carrier = controllers.core->get_carrier_operators(data[134]); // look for carriers
voices[i].dx7_note->peekVoiceStatus(voiceStatus);
for (uint8_t op = 0; op < 6; op++)
for (i = 0; i < max_notes; i++)
{
if (voices[i].live == true)
{
uint8_t op_bit = static_cast<uint8_t>(pow(2, op));
uint8_t op_amp = 0;
uint8_t op_carrier_num = 0;
if ((op_carrier & op_bit) > 0)
voices[i].dx7_note->peekVoiceStatus(voiceStatus);
for (uint8_t op = 0; op < 6; op++)
{
// this voice is a carrier!
op_carrier_num++;
uint8_t op_bit = static_cast<uint8_t>(pow(2, op));
if ((op_carrier & op_bit) > 0)
{
// this voice is a carrier!
op_carrier_num++;
//TRACE("Voice[%2d] OP [%d] amp=%ld,amp_step=%d,pitch_step=%d",i,op,voiceStatus.amp[op],voiceStatus.ampStep[op],voiceStatus.pitchStep);
//TRACE("Voice[%2d] OP [%d] amp=%ld,amp_step=%d,pitch_step=%d",i,op,voiceStatus.amp[op],voiceStatus.ampStep[op],voiceStatus.pitchStep);
if (voiceStatus.amp[op] <= 1069 && voiceStatus.ampStep[op] == 4) // this voice produces no audio output
op_amp++;
if (voiceStatus.amp[op] <= 1069 && voiceStatus.ampStep[op] == 4) // this voice produces no audio output
op_amp++;
}
}
if (op_amp == op_carrier_num)
{
// all carrier-operators are silent -> disable the voice
voices[i].live = false;
voices[i].sustained = false;
voices[i].keydown = false;
TRACE("Shutted down Voice[%2d]", i);
}
}
if (op_amp == op_carrier_num)
{
// all carrier-operators are silent -> disable the voice
voices[i].live = false;
voices[i].sustained = false;
voices[i].keydown = false;
TRACE("Shutted down Voice[%2d]", i);
}
}
}
} */
} */
}
bool Dexed::ProcessMidiMessage(uint8_t type, uint8_t data1, uint8_t data2)
@ -575,6 +575,16 @@ void Dexed::notes_off(void) {
}
}
void Dexed::setMaxNotes(uint8_t n) {
if (n <= MAX_ACTIVE_NOTES)
{
notes_off();
max_notes = n;
panic();
controllers.refresh();
}
}
void Dexed::set_params(void)
{
/* //TRACE("Hi");

9
dexed.h
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@ -66,7 +66,9 @@ class Dexed
void set_params(void);
void GetSamples(uint16_t n_samples, int16_t* buffer);
bool ProcessMidiMessage(uint8_t type, uint8_t data1, uint8_t data2);
void panic(void);
void notes_off(void);
void setMaxNotes(uint8_t n);
Controllers controllers;
VoiceStatus voiceStatus;
@ -74,10 +76,9 @@ class Dexed
//void onParam(uint8_t param_num,float param_val);
void keyup(uint8_t pitch);
void keydown(uint8_t pitch, uint8_t velo);
void panic(void);
void notes_off(void);
static const uint8_t MAX_ACTIVE_NOTES = 32;
static const uint8_t MAX_ACTIVE_NOTES = 16;
uint8_t max_notes = MAX_ACTIVE_NOTES;
ProcessorVoice voices[MAX_ACTIVE_NOTES];
uint8_t currentNote;

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