wirtz
/
BA_MicroMDAEPiano
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Severeal fixes - especially the memory violation in the master loop and

Browse Source 
the handling of the audio queues.
chorus
Holger Wirtz 6 years ago
parent 6c14711c6f
commit 617ba419ab
4 changed files with 46 additions and 37 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 29
      MicroMDAPiano.ino
  2. 2
      config.h
  3. 50
      mdaEPiano.cpp
  4. 2
      mdaEPiano.h

29
MicroMDAPiano.ino
Unescape View File

@ -52,7 +52,7 @@ AudioConnection patchCord6(volume_l, 0, pt8211_1, 1);
#endif #endif
// GUItool: end automatically generated code // GUItool: end automatically generated code
mdaEPiano* ep = new mdaEPiano(); mdaEPiano* ep;
bool sd_card_available = false; bool sd_card_available = false;
uint8_t midi_channel = DEFAULT_MIDI_CHANNEL; uint8_t midi_channel = DEFAULT_MIDI_CHANNEL;
uint32_t xrun = 0; uint32_t xrun = 0;
@ -105,7 +105,6 @@ void setup()
enc1.write(INITIAL_ENC1_VALUE); enc1.write(INITIAL_ENC1_VALUE);
#endif #endif
delay(500);
Serial.println(F("MicroMDAEPiano based on https://sourceforge.net/projects/mda-vst")); Serial.println(F("MicroMDAEPiano based on https://sourceforge.net/projects/mda-vst"));
Serial.println(F("(c)2018 H. Wirtz <wirtz@parasitstudio.de>")); Serial.println(F("(c)2018 H. Wirtz <wirtz@parasitstudio.de>"));
Serial.println(F("https://about.teahub.io/dcoredump/MicroMDAEpiano")); Serial.println(F("https://about.teahub.io/dcoredump/MicroMDAEpiano"));
@ -114,7 +113,8 @@ void setup()
Serial.println(F(" bytes")); Serial.println(F(" bytes"));
Serial.println(); Serial.println();
Serial.println(F("<setup start>")); Serial.println(F("<setup start>"));
delay(1000);
ep = new mdaEPiano();
initial_values_from_eeprom(); initial_values_from_eeprom();
@ -135,10 +135,12 @@ void setup()
//sgtl5000_1.dacVolumeRamp(); //sgtl5000_1.dacVolumeRamp();
sgtl5000_1.dacVolumeRampLinear(); sgtl5000_1.dacVolumeRampLinear();
sgtl5000_1.unmuteHeadphone(); sgtl5000_1.unmuteHeadphone();
sgtl5000_1.unmuteLineout();
sgtl5000_1.autoVolumeDisable(); // turn off AGC sgtl5000_1.autoVolumeDisable(); // turn off AGC
sgtl5000_1.volume(1.0, 1.0); sgtl5000_1.volume(1.0, 1.0);
#endif #endif
//set_volume(vol, vol_left, vol_right);
set_volume(vol, vol_left, vol_right);
// start SD card // start SD card
SPI.setMOSI(SDCARD_MOSI_PIN); SPI.setMOSI(SDCARD_MOSI_PIN);
@ -185,8 +187,12 @@ void loop()
int16_t* audio_buffer_l; // pointer to AUDIO_BLOCK_SAMPLES * int16_t int16_t* audio_buffer_l; // pointer to AUDIO_BLOCK_SAMPLES * int16_t
const uint16_t audio_block_time_ms = 1000000 / (SAMPLE_RATE / AUDIO_BLOCK_SAMPLES); const uint16_t audio_block_time_ms = 1000000 / (SAMPLE_RATE / AUDIO_BLOCK_SAMPLES);
while (42 == 42) // DON'T PANIC! // Main sound calculation
if (queue_r.available() && queue_l.available())
{ {
audio_buffer_r = queue_r.getBuffer();
audio_buffer_l = queue_l.getBuffer();
#if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC) #if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC)
if (cpu_mem_millis > SHOW_CPU_LOAD_MSEC) if (cpu_mem_millis > SHOW_CPU_LOAD_MSEC)
{ {
@ -207,12 +213,9 @@ void loop()
{ {
Serial.println(F("E: audio_buffer_l allocation problems!")); Serial.println(F("E: audio_buffer_l allocation problems!"));
} }
if (!queue_r.available() || !queue_l.available())
continue;
elapsedMicros t1; elapsedMicros t1;
ep->process(&audio_buffer_l,&audio_buffer_r,AUDIO_BLOCK_SAMPLES); ep->process(audio_buffer_l, audio_buffer_r, AUDIO_BLOCK_SAMPLES);
uint32_t t2 = t1; uint32_t t2 = t1;
if (t2 > audio_block_time_ms) // everything greater 2.9ms is a buffer underrun! if (t2 > audio_block_time_ms) // everything greater 2.9ms is a buffer underrun!
xrun++; xrun++;
@ -229,14 +232,17 @@ void loop()
peak++; peak++;
} }
#ifndef TEENSY_AUDIO_BOARD #ifndef TEENSY_AUDIO_BOARD
for (uint8_t i = 0; i <= AUDIO_BLOCK_SAMPLES; i++) for (uint8_t i = 0; i < AUDIO_BLOCK_SAMPLES; i++)
{
audio_buffer_r[i] *= vol_r; audio_buffer_r[i] *= vol_r;
audio_buffer_l[i] *= vol_l; audio_buffer_l[i] *= vol_l;
}
#endif #endif
queue_r.playBuffer(); queue_r.playBuffer();
queue_l.playBuffer(); queue_l.playBuffer();
} }
} }
void handle_input(void) void handle_input(void)
{ {
#ifdef USE_ONBOARD_USB_HOST #ifdef USE_ONBOARD_USB_HOST
@ -743,4 +749,3 @@ void note_off(void)
queue_midi_event(0x80, TEST_NOTE + 60, 0); // 16 queue_midi_event(0x80, TEST_NOTE + 60, 0); // 16
} }
#endif #endif

2
config.h
Unescape View File

@ -32,7 +32,7 @@
#define MIDI_DEVICE Serial1 #define MIDI_DEVICE Serial1
//#define USE_ONBOARD_USB_HOST 1 //#define USE_ONBOARD_USB_HOST 1
#define TEENSY_AUDIO_BOARD 1 #define TEENSY_AUDIO_BOARD 1
#define VOLUME 0.6 #define VOLUME 0.3
#define DEFAULT_MIDI_CHANNEL MIDI_CHANNEL_OMNI #define DEFAULT_MIDI_CHANNEL MIDI_CHANNEL_OMNI
#define AUDIO_MEM 4 #define AUDIO_MEM 4
#define SAMPLE_RATE 44100 #define SAMPLE_RATE 44100

50
mdaEPiano.cpp
Unescape View File

@ -90,23 +90,27 @@ mdaEPiano::mdaEPiano() // mdaEPiano::mdaEPiano(audioMasterCallback audioMaster)
kgrp[31].pos = 406046; kgrp[31].end = 414486; kgrp[31].loop = 2306; //ghost kgrp[31].pos = 406046; kgrp[31].end = 414486; kgrp[31].loop = 2306; //ghost
kgrp[32].pos = 414487; kgrp[32].end = 422408; kgrp[32].loop = 2169; kgrp[32].pos = 414487; kgrp[32].end = 422408; kgrp[32].loop = 2169;
//extra xfade looping... /*
for (int32_t k = 0; k < 28; k++) //extra xfade looping...
{ for (int32_t k = 0; k < 28; k++)
int32_t p0 = kgrp[k].end; {
int32_t p1 = kgrp[k].end - kgrp[k].loop; int32_t p0 = kgrp[k].end;
int32_t p1 = kgrp[k].end - kgrp[k].loop;
float xf = 1.0f; float xf = 1.0f;
float dxf = -0.02f; float dxf = -0.02f;
while (xf > 0.0f) Serial.println("3");
{
waves[p0] = (short)((1.0f - xf) * (float)waves[p0] + xf * (float)waves[p1]); while (xf > 0.0f)
p0--; {
p1--; waves[p0] = (short)((1.0f - xf) * (float)waves[p0] + xf * (float)waves[p1]);
xf += dxf;
} p0--;
} p1--;
xf += dxf;
}
}*/
//initialise... //initialise...
for (int32_t v = 0; v < NVOICES; v++) for (int32_t v = 0; v < NVOICES; v++)
@ -329,10 +333,8 @@ float mdaEPiano::getParameter(int32_t index) {
} }
*/ */
void mdaEPiano::process(int16_t **outputs_r, int16_t **outputs_l, int32_t sampleFrames) void mdaEPiano::process(int16_t *outputs_r, int16_t *outputs_l, int32_t sampleFrames)
{ {
int16_t* out_l = outputs_r[0];
int16_t* out_r = outputs_l[0];
int32_t event = 0, frame = 0, frames, v; int32_t event = 0, frame = 0, frames, v;
float x, l, r, od = overdrive; float x, l, r, od = overdrive;
int32_t i; int32_t i;
@ -355,10 +357,12 @@ void mdaEPiano::process(int16_t **outputs_r, int16_t **outputs_l, int32_t sample
V->pos += V->frac >> 16; V->pos += V->frac >> 16;
V->frac &= 0xFFFF; V->frac &= 0xFFFF;
if (V->pos > V->end) V->pos -= V->loop; if (V->pos > V->end) V->pos -= V->loop;
i = waves[V->pos]; //i = waves[V->pos];
i = (i << 7) + (V->frac >> 9) * (waves[V->pos + 1] - i) + 0x40400000; //i = (i << 7) + (V->frac >> 9) * (waves[V->pos + 1] - i) + 0x40400000; //not working on intel mac !?!
//x = V->env * (*(float *)&i - 3.0f); //fast int->float //x = V->env * (*(float *)&i - 3.0f); //fast int->float
x = V->env * (float(i) - 3.0f); //x = V->env * (float)i / 32768.0f;
i = waves[V->pos] + ((V->frac * (waves[V->pos + 1] - waves[V->pos])) >> 16);
x = V->env * (float)i / 32768.0f;
V->env = V->env * V->dec; //envelope V->env = V->env * V->dec; //envelope
@ -382,8 +386,8 @@ void mdaEPiano::process(int16_t **outputs_r, int16_t **outputs_l, int32_t sample
l += l * lmod * lfo1; l += l * lmod * lfo1;
r += r * rmod * lfo1; //worth making all these local variables? r += r * rmod * lfo1; //worth making all these local variables?
*out_r++ = static_cast<int16_t>(l * 0x8000); outputs_r[sampleFrames - frames] = static_cast<int16_t>(r * 0x8000);
*out_l++ = static_cast<int16_t>(r * 0x8000); outputs_l[sampleFrames - frames] = static_cast<int16_t>(l * 0x8000);
} }
if (frame < sampleFrames) if (frame < sampleFrames)

2
mdaEPiano.h
Unescape View File

@ -60,7 +60,7 @@ public:
mdaEPiano(); // mdaEPiano(audioMasterCallback audioMaster); mdaEPiano(); // mdaEPiano(audioMasterCallback audioMaster);
~mdaEPiano(); ~mdaEPiano();
virtual void process(int16_t **outputs_r, int16_t **outputs_l, int32_t sampleFrames); virtual void process(int16_t *outputs_r, int16_t *outputs_l, int32_t sampleFrames);
virtual bool processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2); virtual bool processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2);
virtual void setProgram(int32_t program); virtual void setProgram(int32_t program);
//virtual void setProgramName(char *name); //virtual void setProgramName(char *name);

Write Preview
Loading…
Cancel
Save