| 1 | #include <nekobee.h> |
| 2 | #include <nekobee_voice.h> |
| 3 | //#include <nekobee_voice_render.h> |
| 4 | #include <nekobee_synth.h> |
| 5 | #include <nekobee_types.h> |
| 6 | #include <esp_task_wdt.h> |
| 7 | #include "driver/i2s.h" |
| 8 | #include "freertos/queue.h" |
| 9 | |
| 10 | |
| 11 | #include <BLEMidi.h> |
| 12 | //void connected(); |
| 13 | //void disconnected(); |
| 14 | |
| 15 | |
| 16 | nekobee_synth_t fSynth; |
| 17 | |
| 18 | #define SAMPLE_RATE 30000 |
| 19 | #define BUF_LEN XSYNTH_NUGGET_SIZE //512 |
| 20 | |
| 21 | void nekobee_handle_raw_event(nekobee_synth_t* const synth, const uint8_t size, const uint8_t* const data) |
| 22 | { |
| 23 | if (size != 3) |
| 24 | return; |
| 25 | |
| 26 | switch (data[0] & 0xf0) |
| 27 | { |
| 28 | case 0x80: |
| 29 | nekobee_synth_note_off(synth, data[1], data[2]); |
| 30 | break; |
| 31 | case 0x90: |
| 32 | if (data[2] > 0) |
| 33 | nekobee_synth_note_on(synth, data[1], data[2]); |
| 34 | else |
| 35 | nekobee_synth_note_off(synth, data[1], 64); /* shouldn't happen, but... */ |
| 36 | break; |
| 37 | case 0xB0: |
| 38 | nekobee_synth_control_change(synth, data[1], data[2]); |
| 39 | break; |
| 40 | default: |
| 41 | break; |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | |
| 46 | static const i2s_port_t i2s_num = I2S_NUM_0; // i2s port number |
| 47 | |
| 48 | |
| 49 | static const i2s_config_t i2s_config = { |
| 50 | .mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX /*| I2S_MODE_DAC_BUILT_IN*/ ), |
| 51 | .sample_rate = SAMPLE_RATE, |
| 52 | .bits_per_sample = I2S_BITS_PER_SAMPLE_32BIT, // only the top 8 bits will actually be used by the internal DAC, but using 8 bits stra> |
| 53 | .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, // always use stereo output. mono seems to be buggy, and the overhead is insignifcant o> |
| 54 | .communication_format = (i2s_comm_format_t)(I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_LSB), // this appears to be the correct setting> |
| 55 | .intr_alloc_flags = 0, // default interrupt priority |
| 56 | .dma_buf_count = 4, // 8*128 bytes of buffer corresponds to 256 samples (2 channels, see above, 2 bytes per sample per channel) |
| 57 | .dma_buf_len = BUF_LEN, |
| 58 | .use_apll = false |
| 59 | }; |
| 60 | |
| 61 | static const i2s_pin_config_t pin_config = { |
| 62 | .bck_io_num = 26, |
| 63 | .ws_io_num = 25, |
| 64 | .data_out_num = 17, |
| 65 | .data_in_num = I2S_PIN_NO_CHANGE |
| 66 | }; |
| 67 | |
| 68 | uint8_t midii=0, midichar, mididata[8]; |
| 69 | |
| 70 | |
| 71 | void synth_task( void * pvParameters ) { |
| 72 | |
| 73 | |
| 74 | |
| 75 | i2s_driver_install(i2s_num, &i2s_config, 0, NULL); //install and start i2s driver |
| 76 | |
| 77 | //i2s_set_pin(i2s_num, NULL); //for internal DAC, this will enable both of the internal channels |
| 78 | i2s_set_pin(i2s_num, &pin_config); |
| 79 | |
| 80 | //You can call i2s_set_dac_mode to set built-in DAC output mode. |
| 81 | //i2s_set_dac_mode(I2S_DAC_CHANNEL_BOTH_EN); |
| 82 | |
| 83 | //i2s_set_sample_rates(i2s_num, SAMPLE_RATE); //set sample rates |
| 84 | |
| 85 | //i2s_driver_uninstall(i2s_num); //stop & destroy i2s driver |
| 86 | |
| 87 | //i2s_adc_disable(i2s_num); |
| 88 | |
| 89 | |
| 90 | |
| 91 | |
| 92 | |
| 93 | |
| 94 | float *out; |
| 95 | out = (float*)malloc(sizeof(float)*BUF_LEN); |
| 96 | int32_t *outdma; |
| 97 | outdma = (int32_t*)malloc(sizeof(int32_t)*BUF_LEN*8); |
| 98 | |
| 99 | int i = 0, n=60, v=60; |
| 100 | //nekobee_synth_note_on(&fSynth, n , v); |
| 101 | while(1) { |
| 102 | if(i==0) { |
| 103 | esp_task_wdt_reset(); |
| 104 | //nekobee_synth_note_off(&fSynth, n , v); |
| 105 | n = 16+rand()%63; |
| 106 | v = 16+rand()%63; |
| 107 | n = rand()%127; |
| 108 | v = rand()%127; |
| 109 | //nekobee_synth_note_on(&fSynth, n , v); |
| 110 | } |
| 111 | |
| 112 | |
| 113 | |
| 114 | |
| 115 | while(Serial.available()) { |
| 116 | |
| 117 | midichar = Serial.read(); |
| 118 | if(midichar & 0b10000000) { |
| 119 | midii = 0; |
| 120 | } else if(midii == 0) continue; |
| 121 | mididata[midii] = midichar; |
| 122 | midii++; |
| 123 | |
| 124 | if(midii >= 3) { |
| 125 | nekobee_handle_raw_event(&fSynth, midii, mididata); |
| 126 | midii = 0; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | nekobee_synth_render_voices(&fSynth, out, BUF_LEN, 1); |
| 131 | for(int i = 0; i < BUF_LEN; i++) { |
| 132 | outdma[i*2] = outdma[(i*2)+1] = lrintf(out[i] * 2147483647); //((127)+round((out[i]*120.0)))*255; |
| 133 | } |
| 134 | |
| 135 | size_t bytes_written; |
| 136 | i2s_write(i2s_num, outdma, BUF_LEN*4*2, &bytes_written, portMAX_DELAY); |
| 137 | |
| 138 | //printf("%d\t%f\n", outdma[0], out[0]); |
| 139 | //fwrite (out, sizeof(float)*BUF_LEN, 1, stdout); |
| 140 | //Serial.println(out[0]); |
| 141 | //Serial.println(uxTaskGetStackHighWaterMark(NULL)); |
| 142 | //Serial.printf("%d\n", outdma[0]); |
| 143 | //mgos_msleep(30); |
| 144 | //delay(1); |
| 145 | i++; if(i>400) i=0; |
| 146 | } |
| 147 | |
| 148 | } |
| 149 | |
| 150 | |
| 151 | uint8_t bn=0, bv=0; |
| 152 | |
| 153 | void onNoteOn(uint8_t channel, uint8_t note, uint8_t velocity) |
| 154 | { |
| 155 | nekobee_synth_note_off(&fSynth, bn , bv); |
| 156 | nekobee_synth_note_on(&fSynth, note , velocity); |
| 157 | bn = note, bv = velocity; |
| 158 | Serial.print("on"); |
| 159 | Serial.println(note); |
| 160 | } |
| 161 | |
| 162 | void onNoteOff(uint8_t channel, uint8_t note, uint8_t velocity) |
| 163 | { |
| 164 | nekobee_synth_note_off(&fSynth, note , velocity); |
| 165 | Serial.print("off"); |
| 166 | Serial.println(note); |
| 167 | } |
| 168 | |
| 169 | |
| 170 | |
| 171 | |
| 172 | void setup() { |
| 173 | Serial.begin(115200); |
| 174 | |
| 175 | nekobee_init_tables(); |
| 176 | |
| 177 | // init synth |
| 178 | fSynth.sample_rate = SAMPLE_RATE; |
| 179 | fSynth.deltat = 1.0f / (float)SAMPLE_RATE; |
| 180 | fSynth.nugget_remains = 0; |
| 181 | |
| 182 | fSynth.note_id = 0; |
| 183 | fSynth.polyphony = XSYNTH_DEFAULT_POLYPHONY; |
| 184 | fSynth.voices = XSYNTH_DEFAULT_POLYPHONY; |
| 185 | fSynth.monophonic = XSYNTH_MONO_MODE_ONCE; |
| 186 | fSynth.glide = 0; |
| 187 | fSynth.last_noteon_pitch = 0.0f; |
| 188 | fSynth.vcf_accent = 0.0f; |
| 189 | fSynth.vca_accent = 0.0f; |
| 190 | |
| 191 | for (int i=0; i<8; ++i) |
| 192 | fSynth.held_keys[i] = -1; |
| 193 | |
| 194 | fSynth.voice = nekobee_voice_new(); |
| 195 | fSynth.voicelist_mutex_grab_failed = 0; |
| 196 | //pthread_mutex_init(&fSynth.voicelist_mutex, nullptr); |
| 197 | |
| 198 | fSynth.channel_pressure = 0; |
| 199 | fSynth.pitch_wheel_sensitivity = 0; |
| 200 | fSynth.pitch_wheel = 0; |
| 201 | |
| 202 | for (int i=0; i<128; ++i) |
| 203 | { |
| 204 | fSynth.key_pressure[i] = 0; |
| 205 | fSynth.cc[i] = 0; |
| 206 | } |
| 207 | fSynth.cc[7] = 127; // full volume |
| 208 | |
| 209 | fSynth.mod_wheel = 1.0f; |
| 210 | fSynth.pitch_bend = 1.0f; |
| 211 | fSynth.cc_volume = 1.0f; |
| 212 | |
| 213 | // Default values |
| 214 | /* |
| 215 | fParams.waveform = 0.0f; |
| 216 | fParams.tuning = 0.0f; |
| 217 | fParams.cutoff = 25.0f; |
| 218 | fParams.resonance = 25.0f; |
| 219 | fParams.envMod = 50.0f; |
| 220 | fParams.decay = 75.0f; |
| 221 | fParams.accent = 25.0f; |
| 222 | fParams.volume = 75.0f; |
| 223 | fParams.bypass = false; |
| 224 | */ |
| 225 | |
| 226 | // Internal stuff |
| 227 | fSynth.waveform = 0.0f; |
| 228 | fSynth.tuning = 1.0f; |
| 229 | fSynth.cutoff = 5.0f; |
| 230 | fSynth.resonance = 0.8f; |
| 231 | fSynth.envmod = 0.3f; |
| 232 | fSynth.decay = 0.0002f; |
| 233 | fSynth.accent = 0.3f; |
| 234 | fSynth.volume = 0.75f; |
| 235 | |
| 236 | //nekobee_synth_render_voices(&fSynth, NULL, 0, 1); //Update controls |
| 237 | nekobee_synth_init_controls(&fSynth); |
| 238 | //nekobee_synth_note_on(&fSynth, 80, 128); |
| 239 | |
| 240 | Serial.println("READY"); |
| 241 | |
| 242 | xTaskCreate(&synth_task, "blinking_led", 5*configMINIMAL_STACK_SIZE, NULL, 0, NULL); |
| 243 | |
| 244 | |
| 245 | |
| 246 | BLEMidiServer.begin("NekoMIDI"); |
| 247 | BLEMidiServer.setOnConnectCallback([](){ // To show how to make a callback with a lambda function |
| 248 | Serial.println("Connected"); |
| 249 | }); |
| 250 | BLEMidiServer.setOnDisconnectCallback([](){ // To show how to make a callback with a lambda function |
| 251 | Serial.println("Disconnected"); |
| 252 | }); |
| 253 | BLEMidiServer.setNoteOnCallback(onNoteOn); |
| 254 | BLEMidiServer.setNoteOffCallback(onNoteOff); |
| 255 | //BLEMidiServer.setControlChangeCallback(onControlChange); |
| 256 | //BLEMidiServer.enableDebugging(); |
| 257 | |
| 258 | } |
| 259 | |
| 260 | |
| 261 | |
| 262 | int i=0; |
| 263 | void loop() { |
| 264 | /* |
| 265 | void |
| 266 | nekobee_voice_render(nekobee_synth_t *synth, nekobee_voice_t *voice, |
| 267 | float *out, unsigned long sample_count, |
| 268 | int do_control_update) |
| 269 | |
| 270 | void nekobee_synth_render_voices(nekobee_synth_t *synth, float *out, |
| 271 | unsigned long sample_count, |
| 272 | int do_control_update); |
| 273 | */ |
| 274 | |
| 275 | //nekobee_synth_render_voices(&fSynth, outbuffer, len, update_controls); |
| 276 | |
| 277 | //float out; |
| 278 | |
| 279 | //nekobee_synth_render_voices(&fSynth, &out, 1, 0); |
| 280 | |
| 281 | //Serial.println(out); |
| 282 | //Serial.println(i++); |
| 283 | delay(30); |
| 284 | |
| 285 | |
| 286 | |
| 287 | //fSynth.waveform = 0.0f; |
| 288 | //fSynth.tuning = 1.0f; |
| 289 | |
| 290 | int adc2 = 0; |
| 291 | if(adc2_get_raw(ADC2_CHANNEL_2, ADC_WIDTH_12Bit, &adc2) == ESP_OK) |
| 292 | fSynth.cutoff = ((float)adc2)/(4095.0f/40.0f); |
| 293 | if(adc2_get_raw(ADC2_CHANNEL_0, ADC_WIDTH_12Bit, &adc2) == ESP_OK) |
| 294 | fSynth.resonance = ((float)adc2)/(4095.0f); |
| 295 | |
| 296 | fSynth.envmod = ((float)analogRead(35))/4095.0f; |
| 297 | |
| 298 | //fSynth.decay = 0.0002f; |
| 299 | fSynth.decay = ((float)analogRead(34))/(4095.0f/0.0004f); |
| 300 | fSynth.accent = ((float)analogRead(36))/4095.0f; |
| 301 | fSynth.volume = ((float)analogRead(39))/4095.0f; |
| 302 | |
| 303 | /* |
| 304 | Serial.print("SYNTH:"); |
| 305 | Serial.print("\tCUT:"); Serial.print(fSynth.cutoff); |
| 306 | Serial.print("\tRES:"); Serial.print(fSynth.resonance); |
| 307 | Serial.print("\tENV:"); Serial.print(fSynth.envmod); |
| 308 | Serial.print("\tDEC:"); Serial.printf("%.7f", fSynth.decay); |
| 309 | Serial.print("\tACC:"); Serial.print(fSynth.accent); |
| 310 | Serial.print("\tVOL:"); Serial.print(fSynth.volume); |
| 311 | Serial.println(); |
| 312 | */ |
| 313 | |
| 314 | } |