PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)
Diff: POKITTO_CORE/PokittoSound.cpp
- Revision:
- 52:c04087025cab
- Child:
- 58:5f58a2846a20
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/POKITTO_CORE/PokittoSound.cpp Sun Jul 01 06:32:37 2018 +0000 @@ -0,0 +1,948 @@ +/**************************************************************************/ +/*! + @file PokittoSound.cpp + @author Jonne Valola + + @section LICENSE + + Software License Agreement (BSD License) + + Copyright (c) 2016, Jonne Valola + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. Neither the name of the copyright holders nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/**************************************************************************/ + +/* + * NOTE: + * API of the Pokitto Sound library is partially identical to the Gamebuino Sound API. + * Due to the difference in architecture (ARM Cortex-M0+ in mbed environment vs. 8-bit AVR) + * large parts are not identical. Most functions were rewritten, with only API remaining. + * We want to give attribution to the original author's project: + * + * License for Gamebuino-identical code: + * + * (C) Copyright 2014 Aurélien Rodot. All rights reserved. + * + * This file is part of the Gamebuino Library (http://gamebuino.com) + * + * The Gamebuino Library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/> + */ + +#include "PokittoSound.h" +#include "Pokitto_settings.h" +#include "PokittoCore.h" +#include "Synth.h" + +#ifndef POK_SIM +#include "HWSound.h" +#else +#include "SimSound.h" +#include "PokittoSimulator.h" +#endif + +typedef uint8_t byte; + +using namespace Pokitto; + +/** discrete hardware volume control **/ + +uint8_t Pokitto::discrete_vol = 0; +uint8_t const Pokitto::discrete_vol_levels[8] {0,32,64,96,128,160,192,224}; +uint8_t const Pokitto::discrete_vol_hw_levels[8] {0,27,64,96,36,117,127,127}; +uint8_t const Pokitto::discrete_vol_multipliers[8] {0,127,127,127,192,192,255,255}; + +Pokitto::Core _soundc; + +uint8_t Sound::prescaler; +uint16_t Sound::globalVolume; +uint16_t Sound::volumeMax = VOLUME_HEADPHONE_MAX; +uint8_t Sound::headPhoneLevel=1; + +bool Sound::trackIsPlaying[NUM_CHANNELS]; +bool Sound::patternIsPlaying[NUM_CHANNELS]; +uint8_t Sound::outputPitch[NUM_CHANNELS]; +int8_t Sound::outputVolume[NUM_CHANNELS]; + +uint16_t *Sound::trackData[NUM_CHANNELS]; +uint8_t Sound::trackCursor[NUM_CHANNELS]; +uint16_t **Sound::patternSet[NUM_CHANNELS]; +int8_t Sound::patternPitch[NUM_CHANNELS]; + +// pattern data +uint16_t *Sound::patternData[NUM_CHANNELS]; +uint16_t **Sound::instrumentSet[NUM_CHANNELS]; +bool Sound::patternLooping[NUM_CHANNELS]; +uint16_t Sound::patternCursor[NUM_CHANNELS]; + +// note data +uint8_t Sound::notePitch[NUM_CHANNELS]; +uint8_t Sound::noteDuration[NUM_CHANNELS]; +int8_t Sound::noteVolume[NUM_CHANNELS]; +bool Sound::notePlaying[NUM_CHANNELS]; + +// commands data +int8_t Sound::commandsCounter[NUM_CHANNELS]; +int8_t Sound::volumeSlideStepDuration[NUM_CHANNELS]; +int8_t Sound::volumeSlideStepSize[NUM_CHANNELS]; +uint8_t Sound::arpeggioStepDuration[NUM_CHANNELS]; +int8_t Sound::arpeggioStepSize[NUM_CHANNELS]; +uint8_t Sound::tremoloStepDuration[NUM_CHANNELS]; +int8_t Sound::tremoloStepSize[NUM_CHANNELS]; + +// instrument data +uint16_t *Sound::instrumentData[NUM_CHANNELS]; +uint8_t Sound::instrumentLength[NUM_CHANNELS]; //number of steps in the instrument +uint8_t Sound::instrumentLooping[NUM_CHANNELS]; //how many steps to loop on when the last step of the instrument is reached +uint16_t Sound::instrumentCursor[NUM_CHANNELS]; //which step is being played +uint8_t Sound::instrumentNextChange[NUM_CHANNELS]; //how many frames before the next step + +//current step data +int8_t Sound::stepVolume[NUM_CHANNELS]; +uint8_t Sound::stepPitch[NUM_CHANNELS]; +uint8_t Sound::chanVolumes[NUM_CHANNELS]; + +#if (POK_ENABLE_SOUND < 1) + #define NUM_CHANNELS 0 +#endif + +#if(NUM_CHANNELS > 0) + #ifndef POK_SIM + uint32_t sbyte; + #else + uint32_t sbyte; + float pwm1; + #endif // POK_SIM + +//declare these variables globally for faster access +uint8_t _rand = 1; +uint8_t _chanCount[NUM_CHANNELS]; //counts until the next change of the waveform +bool _chanState[NUM_CHANNELS]; //if the waveform is currently high or low +uint8_t _chanHalfPeriod[NUM_CHANNELS]; //duration of half the period of the waveform +uint8_t _chanOutputVolume[NUM_CHANNELS]; //amplitude of the outputted waveform +uint8_t _chanOutput[NUM_CHANNELS]; //current value of the outputted waveform +bool _chanNoise[NUM_CHANNELS]; //if a random value should be added to the waveform to generate noise + +#if POK_GBSOUND > 0 +const uint16_t squareWaveInstrument[] = {0x0101, 0x03F7}; +const uint16_t noiseInstrument[] = {0x0101, 0x03FF}; +const uint16_t* const defaultInstruments[] = {squareWaveInstrument,noiseInstrument}; + +const uint16_t playOKPattern[] = {0x0005,0x138,0x168,0x0000}; +const uint16_t playCancelPattern[] = {0x0005,0x168,0x138,0x0000}; +const uint16_t playTickP[] = {0x0045,0x168,0x0000}; +#endif +#if(EXTENDED_NOTE_RANGE > 0) +//extended note range +#define NUM_PITCH 59 +const uint8_t _halfPeriods[NUM_PITCH] = {246,232,219,207,195,184,174,164,155,146,138,130,123,116,110,104,98,92,87,82,78,73,69,65,62,58,55,52,49,46,44,41,39,37,35,33,31,29,28,26,25,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6}; +#else +//regular note range +#define NUM_PITCH 36 +const uint8_t _halfPeriods[NUM_PITCH] = {246,232,219,207,195,184,174,164,155,146,138,130,123,116,110,104,98,92,87,82,78,73,69,65,62,58,55,52,49,46,44,41,39,37,35,33}; +#endif + +#endif + +void Pokitto::audio_IRQ() { + #if POK_STREAMING_MUSIC > 0 + #if POK_STREAMFREQ_HALVE > 0 + streamstep = 1-streamstep; + #else + streamstep=1; + #endif + + streamstep &= streamon; //check if stream is on + + if(streamvol && streamstep) { + uint8_t output = (*currentPtr++); + sbyte = output; + } else { + sbyte = 0; // duty cycle + } + + if (currentPtr >= endPtr) + { + currentBuffer++; + if (currentBuffer==4) currentBuffer=0; + currentPtr = buffers[currentBuffer]; + endPtr = currentPtr + BUFFER_SIZE; + } + + #endif // POK_STREAMING_MUSIC + #if (NUM_CHANNELS > 0) + Sound::generateOutput(); + #endif +} + +void Sound::volumeUp() { + Pokitto::discrete_vol++; + if (discrete_vol>7) discrete_vol=7; + globalVolume = discrete_vol_levels[discrete_vol]; + setVolume(globalVolume); + //if (globalVolume>VOLUME_HEADPHONE_MAX) setVolume(getVolume()+VOLUME_STEP*2); + //else setVolume(getVolume()+VOLUME_STEP); +} + +void Sound::volumeDown() { + if (discrete_vol) Pokitto::discrete_vol--; + globalVolume = discrete_vol_levels[discrete_vol]; + setVolume(globalVolume); + //if (globalVolume>VOLUME_HEADPHONE_MAX) setVolume(getVolume()-VOLUME_STEP*4); + //else setVolume(getVolume()-VOLUME_STEP); +} + + +void Sound::setMaxVol(int16_t v) { + if (v < 0) v = 0; //prevent nasty wraparound + if (v > VOLUME_SPEAKER_MAX) { + v = VOLUME_SPEAKER_MAX; + } + volumeMax = v; + setVolume(globalVolume); +} + +uint16_t Sound::getMaxVol() { + return volumeMax; +} + +void Sound::updateStream() { + #if POK_STREAMING_MUSIC + if (oldBuffer != currentBuffer) { + if (currentBuffer==0) fileReadBytes(&buffers[3][0],BUFFER_SIZE); + else if (currentBuffer==1) fileReadBytes(&buffers[0][0],BUFFER_SIZE); + else if (currentBuffer==2) fileReadBytes(&buffers[1][0],BUFFER_SIZE); + else fileReadBytes(&buffers[2][0],BUFFER_SIZE); + oldBuffer = currentBuffer; + streamcounter += BUFFER_SIZE; + } + + #ifndef POK_SIM + if ( streamcounter > fs.fsize - (BUFFER_SIZE)) { + #else + if ( streamcounter > getFileLength() - (BUFFER_SIZE)) { + #endif + streamcounter=0; + #if POK_STREAM_LOOP > 0 + fileRewind(); + #else + #ifndef POK_SIM + streamon=0; + #endif // POK_SIM + #endif // POK_STREAM_LOOP + } + #endif +} + +void Sound::begin() { +#if POK_ENABLE_SOUND > 0 +soundInit(); +ampEnable(true); +#endif +#if (NUM_CHANNELS > 0) +#if POK_ENABLE_SOUND > 0 +#if POK_GBSOUND > 0 + prescaler = 1; + for(byte i=0; i<NUM_CHANNELS; i++){ + chanVolumes[i] = VOLUME_CHANNEL_MAX; + changeInstrumentSet(defaultInstruments, i); //load default instruments. #0:square wave, #1: noise + command(CMD_INSTRUMENT, 0, 0, i); //set the default instrument to square wave + } +#endif // POK_GBSOUND +#endif //POK_ENABLE_SOUND +#endif +} + +void Sound::playTrack(const uint16_t* track, uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + stopTrack(channel); + trackCursor[channel] = 0; + trackData[channel] = (uint16_t*)track; + trackIsPlaying[channel] = true; +#endif +} + +void Sound::stopTrack(uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + trackIsPlaying[channel] = false; + stopPattern(channel); +#endif +} + +void Sound::stopTrack(){ +#if(NUM_CHANNELS > 0) + for(uint8_t i=0; i<NUM_CHANNELS; i++){ + stopTrack(i); + } +#endif +} + +void Sound::updateTrack(uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + if(trackIsPlaying[channel] && !patternIsPlaying[channel]){ + uint16_t data = pgm_read_word(trackData[channel] + trackCursor[channel]); + if(data == 0xFFFF){ //en of the track + trackIsPlaying[channel] = false; + return; + } + uint8_t patternID = data & 0xFF; + data >>= 8; + patternPitch[channel] = data; + playPattern((const uint16_t*)pgm_read_word(&(patternSet[channel][patternID])), channel); + trackCursor[channel] ++; + } +#endif +} + +void Sound::updateTrack(){ +#if(NUM_CHANNELS > 0) + for (uint8_t i=0; i<NUM_CHANNELS; i++){ + updateTrack(i); + } +#endif +} + +void Sound::changePatternSet(const uint16_t* const* patterns, uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + patternSet[channel] = (uint16_t**)patterns; +#endif +} + +void Sound::playPattern(const uint16_t* pattern, uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + stopPattern(channel); + patternData[channel] = (uint16_t*)pattern; + patternCursor[channel] = 0; + patternIsPlaying[channel] = true; + noteVolume[channel] = 9; + //reinit commands + volumeSlideStepDuration[channel] = 0; + arpeggioStepDuration[channel] = 0; + tremoloStepDuration[channel] = 0; +#endif +} + +void Sound::updatePattern(){ +#if(NUM_CHANNELS > 0) + for (uint8_t i=0; i<NUM_CHANNELS; i++){ + updatePattern(i); + } +#endif +} + +void Sound::changeInstrumentSet(const uint16_t* const* instruments, uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + instrumentSet[channel] = (uint16_t**)instruments; +#endif +} + +void Sound::updatePattern(uint8_t i){ +#if(NUM_CHANNELS > 0) + if(i>=NUM_CHANNELS) + return; + if(patternIsPlaying[i]){ + if(noteDuration[i]==0){//if the end of the previous note is reached + + uint16_t data = pgm_read_word(patternCursor[i] + patternData[i]); + + if(data == 0){ //end of the pattern reached + if(patternLooping[i] == true){ + patternCursor[i] = 0; + data = pgm_read_word(patternCursor[i] + patternData[i]); + } + else{ + patternIsPlaying[i] = false; + if(trackIsPlaying[i]){ //if this pattern is part of a track, get the next pattern + updateTrack(i); + data = pgm_read_word(patternCursor[i] + patternData[i]); + } else { + stopNote(i); + //Serial.print("pattern end\n"); + return; + } + } + } + + while (data & 0x0001){ //read all commands and instrument changes + data >>= 2; + //Serial.print("\ncmd\t"); + uint8_t cmd = data & 0x0F; + data >>= 4; + uint8_t X = data & 0x1F; + data >>= 5; + int8_t Y = data - 16; + command(cmd,X,Y,i); + patternCursor[i]++; + data = pgm_read_word(patternCursor[i] + patternData[i]); + } + data >>= 2; + + uint8_t pitch = data & 0x003F; + data >>= 6; + + uint8_t duration = data; + if(pitch != 63){ + } + + playNote(pitch, duration, i); + + patternCursor[i]++; + } + } +#endif +} + +void Sound::stopPattern(uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + stopNote(channel); + patternIsPlaying[channel] = false; +#endif +} + +void Sound::stopPattern(){ +#if(NUM_CHANNELS > 0) + for(uint8_t i=0; i<NUM_CHANNELS; i++){ + stopPattern(i); + } +#endif +} + +void Sound::command(uint8_t cmd, uint8_t X, int8_t Y, uint8_t i){ +#if(NUM_CHANNELS > 0) + if(i>=NUM_CHANNELS) + return; + switch(cmd){ + case CMD_VOLUME: //volume + X = constrain((int8_t)X, 0, 10); + noteVolume[i] = X; + break; + case CMD_INSTRUMENT: //instrument + instrumentData[i] = (uint16_t*)pgm_read_word(&(instrumentSet[i][X])); + instrumentLength[i] = pgm_read_word(&(instrumentData[i][0])) & 0x00FF; //8 LSB + instrumentLength[i] *= prescaler; + instrumentLooping[i] = min2((pgm_read_word(&(instrumentData[i][0])) >> 8), instrumentLength[i]); //8 MSB - check that the loop is shorter than the instrument length + instrumentLooping[i] *= prescaler; + break; + case CMD_SLIDE: //volume slide + volumeSlideStepDuration[i] = X * prescaler; + volumeSlideStepSize[i] = Y; + break; + case CMD_ARPEGGIO: + arpeggioStepDuration[i] = X * prescaler; + arpeggioStepSize[i] = Y; + break; + case CMD_TREMOLO: + tremoloStepDuration[i] = X * prescaler; + tremoloStepSize[i] = Y; + break; + default: + break; + } +#endif +} + +void Sound::playNote(uint8_t pitch, uint8_t duration, uint8_t channel){ +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + //set note + notePitch[channel] = pitch; + noteDuration[channel] = duration * prescaler; + //reinit vars + instrumentNextChange[channel] = 0; + instrumentCursor[channel] = 0; + notePlaying[channel] = true; + _chanState[channel] = true; + commandsCounter[channel] = 0; +#endif +} + +void Sound::stopNote(uint8_t channel) { +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + notePlaying[channel] = false; + //counters + noteDuration[channel] = 0; + instrumentCursor[channel] = 0; + commandsCounter[channel] = 0; + //output + _chanOutput[channel] = 0; + _chanOutputVolume[channel] = 0; + _chanState[channel] = false; + updateOutput(); +#endif +} + +void Sound::stopNote() { +#if(NUM_CHANNELS > 0) + for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) { + stopNote(channel); + } +#endif +} + +void Sound::updateNote() { +#if(NUM_CHANNELS > 0) + for (uint8_t i = 0; i < NUM_CHANNELS; i++) { + updateNote(i); + } +#endif +} + +void Sound::updateNote(uint8_t i) { +#if(NUM_CHANNELS > 0) + if(i>=NUM_CHANNELS) + return; + if (notePlaying[i]) { + + if(noteDuration[i] == 0){ + stopNote(i); + //Serial.println("note end"); + return; + } else { + noteDuration[i]--; + } + + if (instrumentNextChange[i] == 0) { + + //read the step data from the progmem and decode it + uint16_t thisStep = pgm_read_word(&(instrumentData[i][1 + instrumentCursor[i]])); + + stepVolume[i] = thisStep & 0x0007; + thisStep >>= 3; + + uint8_t stepNoise = thisStep & 0x0001; + thisStep >>= 1; + + uint8_t stepDuration = thisStep & 0x003F; + thisStep >>= 6; + + stepPitch[i] = thisStep; + + //apply the step settings + instrumentNextChange[i] = stepDuration * prescaler; + + _chanNoise[i] = stepNoise; + + + instrumentCursor[i]++; + + if (instrumentCursor[i] >= instrumentLength[i]) { + if (instrumentLooping[i]) { + instrumentCursor[i] = instrumentLength[i] - instrumentLooping[i]; + } else { + stopNote(i); + } + } + } + instrumentNextChange[i]--; + + commandsCounter[i]++; + + //UPDATE VALUES + //pitch + outputPitch[i] = notePitch[i] + stepPitch[i] + patternPitch[i]; + if(arpeggioStepDuration[i]){ + outputPitch[i] += commandsCounter[i] / arpeggioStepDuration[i] * arpeggioStepSize[i]; + } + outputPitch[i] = (outputPitch[i] + NUM_PITCH) % NUM_PITCH; //wrap + //volume + outputVolume[i] = noteVolume[i]; + if(volumeSlideStepDuration[i]){ + outputVolume[i] += commandsCounter[i] / volumeSlideStepDuration[i] * volumeSlideStepSize[i]; + } + if(tremoloStepDuration[i]){ + outputVolume[i] += ((commandsCounter[i]/tremoloStepDuration[i]) % 2) * tremoloStepSize[i]; + } + outputVolume[i] = constrain(outputVolume[i], 0, 9); + if(notePitch[i] == 63){ + outputVolume[i] = 0; + } + // jonnehw noInterrupts(); + _chanHalfPeriod[i] = pgm_read_byte(_halfPeriods + outputPitch[i]); + _chanOutput[i] = _chanOutputVolume[i] = outputVolume[i] * (globalVolume>>GLOBVOL_SHIFT) * chanVolumes[i] * stepVolume[i]; + //Serial.println(outputVolume[i]); + // jonnehw interrupts(); + } +#endif +} + +void Sound::setChannelHalfPeriod(uint8_t channel, uint8_t halfPeriod) { +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + _chanHalfPeriod[channel] = halfPeriod; + _chanState[channel] = false; + _chanCount[channel] = 0; + updateOutput(); +#endif +} + + +void Sound::generateOutput() { +#if(NUM_CHANNELS > 0) + bool outputChanged = false; + //no for loop here, for the performance sake (this function runs 15 000 times per second...) + //CHANNEL 0 + if (_chanOutputVolume[0]) { + _chanCount[0]++; + if (_chanCount[0] >= _chanHalfPeriod[0]) { + outputChanged = true; + _chanState[0] = !_chanState[0]; + _chanCount[0] = 0; + if (_chanNoise[0]) { + _rand = 67 * _rand + 71; + _chanOutput[0] = _rand % _chanOutputVolume[0]; + } + } + } + + + //CHANNEL 1 + #if (NUM_CHANNELS > 1) + if (_chanOutputVolume[1]) { + _chanCount[1]++; + if (_chanCount[1] >= _chanHalfPeriod[1]) { + outputChanged = true; + _chanState[1] = !_chanState[1]; + _chanCount[1] = 0; + if (_chanNoise[1]) { + _rand = 67 * _rand + 71; + _chanOutput[1] = _rand % _chanOutputVolume[1]; + } + } + } + #endif + + //CHANNEL 2 + #if (NUM_CHANNELS > 2) + if (_chanOutputVolume[2]) { + _chanCount[2]++; + if (_chanCount[2] >= _chanHalfPeriod[2]) { + outputChanged = true; + _chanState[2] = !_chanState[2]; + _chanCount[2] = 0; + if (_chanNoise[2]) { + _rand = 67 * _rand + 71; + _chanOutput[2] = _rand % _chanOutputVolume[2]; + } + } + } + #endif + + //CHANNEL 3 + #if (NUM_CHANNELS > 3) + if (_chanOutputVolume[3]) { + _chanCount[3]++; + if (_chanCount[3] >= _chanHalfPeriod[3]) { + outputChanged = true; + _chanState[3] = !_chanState[3]; + _chanCount[3] = 0; + if (_chanNoise[3]) { + _rand = 67 * _rand + 71; + _chanOutput[3] = _rand % _chanOutputVolume[3]; + } + } + } + #endif + + #if POK_STREAMING_MUSIC + if (streamstep) { + outputChanged=true; + } + #endif + + if (outputChanged) { + updateOutput(); + } +#endif +} + +void Sound::updateOutput() { +#if(NUM_CHANNELS > 0) + uint32_t output = 0; + + //CHANNEL 0 + if (_chanState[0]) { + output += _chanOutput[0]; + } + + //CHANNEL 1 + #if (NUM_CHANNELS > 1) + if (_chanState[1]) { + output += _chanOutput[1]; + } + #endif + + //CHANNEL 2 + #if (NUM_CHANNELS > 2) + if (_chanState[2]) { + output += _chanOutput[2]; + } + #endif + + //CHANNEL 3 + #if (NUM_CHANNELS > 3) + if (_chanState[3]) { + output += _chanOutput[3]; + } + #endif + + #ifndef POK_SIM + #if POK_ENABLE_SOUND + /** HARDWARE **/ + + #if POK_STREAMING_MUSIC + if (streamstep) { + //pwmout_write(&audiopwm,(float)(sbyte>>headPhoneLevel)/(float)255); + sbyte *= discrete_vol_multipliers[discrete_vol]; + sbyte >>= 8; + pwmout_write(&audiopwm,(float)(sbyte)/(float)255); + } + #endif + output *= discrete_vol_multipliers[discrete_vol]; + output >>= 8; + dac_write((uint8_t)output); //direct hardware mixing baby ! + soundbyte = output; + #endif //POK_ENABLE_SOUND + #else + /** SIMULATOR **/ + #if POK_STREAMING_MUSIC + if (streamstep) { + uint16_t o = output + sbyte; + output = (o/2);//>>headPhoneLevel; + } + #endif + soundbyte = output;//<<headPhoneLevel; + #endif // POK_SIM +#endif +} + +void Sound::setPatternLooping(bool loop, uint8_t channel) { +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + patternLooping[channel] = loop; +#endif +} + +void Sound::playOK(){ + #if POK_GBSOUND +#if(NUM_CHANNELS > 0) + playPattern(playOKPattern,0); +#endif +#endif // POK_GBSOUND +} + +void Sound::playCancel(){ +#if POK_GBSOUND +#if(NUM_CHANNELS > 0) + playPattern(playCancelPattern,0); +#endif +#endif +} + +void Sound::playTick(){ +#if POK_GBSOUND +#if(NUM_CHANNELS > 0) + playPattern(playTickP,0); +#endif +#endif // POK_GBSOUND +} + +void Sound::setVolume(int16_t volume) { +//#if NUM_CHANNELS > 0 + if (volume<0) volume = 0; + //if (volume>volumeMax) volume = volumeMax; + globalVolume = volume; + #if POK_ENABLE_SOUND > 0 + discrete_vol = (volume>>5); + #ifndef POK_SIM + setHWvolume(discrete_vol_hw_levels[discrete_vol]); //boost volume if headphonelevel + #endif + #endif + #if POK_SHOW_VOLUME > 0 + _soundc.volbar_visible = VOLUMEBAR_TIMEOUT; + #endif +//#endif +} + +uint16_t Sound::getVolume() { +//#if NUM_CHANNELS > 0 + return globalVolume; +//#else +// return 0; +//#endif +} + +void Sound::setVolume(int8_t volume, uint8_t channel) { +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return; + volume = (volume > VOLUME_CHANNEL_MAX) ? VOLUME_CHANNEL_MAX : volume; + volume = (volume < 0) ? 0 : volume; + chanVolumes[channel] = volume; +#endif +} + +uint8_t Sound::getVolume(uint8_t channel) { +#if(NUM_CHANNELS > 0) + if(channel>=NUM_CHANNELS) + return 255; + return (chanVolumes[channel]); +#else + return 0; +#endif +} + +void Sound::playTone(uint8_t os, int frq, uint8_t amp, uint8_t wav,uint8_t arpmode) +{ + if (wav>5) wav=0; + if (arpmode>MAX_ARPMODE) arpmode=MAX_ARPMODE; + if (os==1) setOSC(&osc1,1,wav,1,0,0,frq,amp,0,0,0,0,0,0,arpmode,0,0); + else if (os==2) setOSC(&osc2,1,wav,1,0,0,frq,amp,0,0,0,0,0,0,arpmode,0,0); + else if (os==3) setOSC(&osc3,1,wav,1,0,0,frq,amp,0,0,0,0,0,0,arpmode,0,0); +} + +void Sound::playTone(uint8_t os, uint16_t frq, uint8_t volume, uint32_t duration) +{ + if (os==1) setOSC(&osc1,1,WSQUARE,frq,volume,duration); + else if (os==2) setOSC(&osc2,1,WTRI,frq,volume,duration); + else if (os==3) setOSC(&osc3,1,WTRI,frq,volume,duration); +} + +uint8_t Sound::ampIsOn() +{ + #ifdef POK_SIM + return core.ampIsOn(); + #else + #if POK_ENABLE_SOUND > 0 + return Pokitto::ampIsOn(); + #endif + #endif // POK_SIM + return 0; +} + +void Sound::ampEnable(uint8_t v) { + #ifdef POK_SIM + core.ampEnable(v); + #else + #if POK_ENABLE_SOUND > 0 + Pokitto::ampEnable(v); + #endif + #endif // POK_SIM + +} + +int Sound::playMusicStream(char* filename) +{ + return playMusicStream(filename,FILE_MODE_READONLY | FILE_MODE_BINARY); +} + +int Sound::playMusicStream() +{ + #if POK_STREAMING_MUSIC >0 + if (currentPtr) { + pokPlayStream(); + return 1; + } else return 0; //no stream + #endif // POK_STREAMING_MUSIC +} + +void Sound::pauseMusicStream() { + #if POK_ENABLE_SOUND > 0 + pokPauseStream(); + #endif +} + +int Sound::playMusicStream(char* filename, uint8_t options) +{ + #if POK_STREAMING_MUSIC + uint8_t result; + result = pokInitSD(); + if (!isThisFileOpen(filename)) { + fileClose(); // close any open files + result = fileOpen(filename,FILE_MODE_READONLY | FILE_MODE_BINARY); + } + + if (result) { + currentPtr = 0; // mark that no stream is available + return 0; // opening music file failed + } + + fileReadBytes(&buffers[0][0],BUFFER_SIZE); + fileReadBytes(&buffers[1][0],BUFFER_SIZE); + fileReadBytes(&buffers[2][0],BUFFER_SIZE); + fileReadBytes(&buffers[3][0],BUFFER_SIZE); + currentBuffer = 0; + currentPtr = buffers[currentBuffer]; + endPtr = currentPtr + BUFFER_SIZE; + + //streaming = STR_PLAYING|options; + + if (!options) pokPlayStream(); // activate stream + #endif //POK_STREAMING_MUSIC + return 1; // opening music file succeeded +} + +uint32_t Sound::getMusicStreamElapsedSec() { + #if POK_STREAMING_MUSIC + return streamcounter/POK_AUD_FREQ; + #endif + return 0; +} + +uint32_t Sound::getMusicStreamElapsedMilliSec() { + #if POK_STREAMING_MUSIC + return streamcounter/(POK_AUD_FREQ/1000); + #endif + return 0; +} +