spinal cord / PokittoLib_

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

POKITTO_CORE/PokittoSound.cpp@31:f4b9b85c7b62, 2018-01-30 (annotated)

Committer:
Pokitto
Date:
Tue Jan 30 10:41:47 2018 +0000
Revision:
31:f4b9b85c7b62
Sound output improvements added:  louder, clearer, faster!

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 31:f4b9b85c7b62 1 /**************************************************************************/
Pokitto 31:f4b9b85c7b62 2 /*!
Pokitto 31:f4b9b85c7b62 3 @file PokittoSound.cpp
Pokitto 31:f4b9b85c7b62 4 @author Jonne Valola
Pokitto 31:f4b9b85c7b62 5
Pokitto 31:f4b9b85c7b62 6 @section LICENSE
Pokitto 31:f4b9b85c7b62 7
Pokitto 31:f4b9b85c7b62 8 Software License Agreement (BSD License)
Pokitto 31:f4b9b85c7b62 9
Pokitto 31:f4b9b85c7b62 10 Copyright (c) 2016, Jonne Valola
Pokitto 31:f4b9b85c7b62 11 All rights reserved.
Pokitto 31:f4b9b85c7b62 12
Pokitto 31:f4b9b85c7b62 13 Redistribution and use in source and binary forms, with or without
Pokitto 31:f4b9b85c7b62 14 modification, are permitted provided that the following conditions are met:
Pokitto 31:f4b9b85c7b62 15 1. Redistributions of source code must retain the above copyright
Pokitto 31:f4b9b85c7b62 16 notice, this list of conditions and the following disclaimer.
Pokitto 31:f4b9b85c7b62 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 31:f4b9b85c7b62 18 notice, this list of conditions and the following disclaimer in the
Pokitto 31:f4b9b85c7b62 19 documentation and/or other materials provided with the distribution.
Pokitto 31:f4b9b85c7b62 20 3. Neither the name of the copyright holders nor the
Pokitto 31:f4b9b85c7b62 21 names of its contributors may be used to endorse or promote products
Pokitto 31:f4b9b85c7b62 22 derived from this software without specific prior written permission.
Pokitto 31:f4b9b85c7b62 23
Pokitto 31:f4b9b85c7b62 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 31:f4b9b85c7b62 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 31:f4b9b85c7b62 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 31:f4b9b85c7b62 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 31:f4b9b85c7b62 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 31:f4b9b85c7b62 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 31:f4b9b85c7b62 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 31:f4b9b85c7b62 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 31:f4b9b85c7b62 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 31:f4b9b85c7b62 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 31:f4b9b85c7b62 34 */
Pokitto 31:f4b9b85c7b62 35 /**************************************************************************/
Pokitto 31:f4b9b85c7b62 36
Pokitto 31:f4b9b85c7b62 37 /*
Pokitto 31:f4b9b85c7b62 38 * NOTE:
Pokitto 31:f4b9b85c7b62 39 * API of the Pokitto Sound library is partially identical to the Gamebuino Sound API.
Pokitto 31:f4b9b85c7b62 40 * Due to the difference in architecture (ARM Cortex-M0+ in mbed environment vs. 8-bit AVR)
Pokitto 31:f4b9b85c7b62 41 * large parts are not identical. Most functions were rewritten, with only API remaining.
Pokitto 31:f4b9b85c7b62 42 * We want to give attribution to the original author's project:
Pokitto 31:f4b9b85c7b62 43 *
Pokitto 31:f4b9b85c7b62 44 * License for Gamebuino-identical code:
Pokitto 31:f4b9b85c7b62 45 *
Pokitto 31:f4b9b85c7b62 46 * (C) Copyright 2014 Aur�lien Rodot. All rights reserved.
Pokitto 31:f4b9b85c7b62 47 *
Pokitto 31:f4b9b85c7b62 48 * This file is part of the Gamebuino Library (http://gamebuino.com)
Pokitto 31:f4b9b85c7b62 49 *
Pokitto 31:f4b9b85c7b62 50 * The Gamebuino Library is free software: you can redistribute it and/or modify
Pokitto 31:f4b9b85c7b62 51 * it under the terms of the GNU Lesser General Public License as published by
Pokitto 31:f4b9b85c7b62 52 * the Free Software Foundation, either version 3 of the License, or
Pokitto 31:f4b9b85c7b62 53 * (at your option) any later version.
Pokitto 31:f4b9b85c7b62 54 *
Pokitto 31:f4b9b85c7b62 55 * This program is distributed in the hope that it will be useful,
Pokitto 31:f4b9b85c7b62 56 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Pokitto 31:f4b9b85c7b62 57 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Pokitto 31:f4b9b85c7b62 58 * GNU Lesser General Public License for more details.
Pokitto 31:f4b9b85c7b62 59 *
Pokitto 31:f4b9b85c7b62 60 * You should have received a copy of the GNU Lesser General Public License
Pokitto 31:f4b9b85c7b62 61 * along with this program. If not, see <http://www.gnu.org/licenses/>
Pokitto 31:f4b9b85c7b62 62 */
Pokitto 31:f4b9b85c7b62 63
Pokitto 31:f4b9b85c7b62 64 #include "PokittoSound.h"
Pokitto 31:f4b9b85c7b62 65 #include "Pokitto_settings.h"
Pokitto 31:f4b9b85c7b62 66 #include "PokittoCore.h"
Pokitto 31:f4b9b85c7b62 67 #include "Synth.h"
Pokitto 31:f4b9b85c7b62 68
Pokitto 31:f4b9b85c7b62 69 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 70 #include "HWSound.h"
Pokitto 31:f4b9b85c7b62 71 #else
Pokitto 31:f4b9b85c7b62 72 #include "SimSound.h"
Pokitto 31:f4b9b85c7b62 73 #include "PokittoSimulator.h"
Pokitto 31:f4b9b85c7b62 74 #endif
Pokitto 31:f4b9b85c7b62 75
Pokitto 31:f4b9b85c7b62 76 typedef uint8_t byte;
Pokitto 31:f4b9b85c7b62 77
Pokitto 31:f4b9b85c7b62 78 using namespace Pokitto;
Pokitto 31:f4b9b85c7b62 79
Pokitto 31:f4b9b85c7b62 80 Pokitto::Core _soundc;
Pokitto 31:f4b9b85c7b62 81
Pokitto 31:f4b9b85c7b62 82 uint8_t Sound::prescaler;
Pokitto 31:f4b9b85c7b62 83 uint16_t Sound::globalVolume;
Pokitto 31:f4b9b85c7b62 84 uint16_t Sound::volumeMax = VOLUME_HEADPHONE_MAX;
Pokitto 31:f4b9b85c7b62 85
Pokitto 31:f4b9b85c7b62 86 bool Sound::trackIsPlaying[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 87 bool Sound::patternIsPlaying[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 88 uint8_t Sound::outputPitch[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 89 int8_t Sound::outputVolume[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 90
Pokitto 31:f4b9b85c7b62 91 uint16_t *Sound::trackData[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 92 uint8_t Sound::trackCursor[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 93 uint16_t **Sound::patternSet[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 94 int8_t Sound::patternPitch[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 95
Pokitto 31:f4b9b85c7b62 96 // pattern data
Pokitto 31:f4b9b85c7b62 97 uint16_t *Sound::patternData[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 98 uint16_t **Sound::instrumentSet[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 99 bool Sound::patternLooping[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 100 uint16_t Sound::patternCursor[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 101
Pokitto 31:f4b9b85c7b62 102 // note data
Pokitto 31:f4b9b85c7b62 103 uint8_t Sound::notePitch[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 104 uint8_t Sound::noteDuration[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 105 int8_t Sound::noteVolume[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 106 bool Sound::notePlaying[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 107
Pokitto 31:f4b9b85c7b62 108 // commands data
Pokitto 31:f4b9b85c7b62 109 int8_t Sound::commandsCounter[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 110 int8_t Sound::volumeSlideStepDuration[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 111 int8_t Sound::volumeSlideStepSize[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 112 uint8_t Sound::arpeggioStepDuration[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 113 int8_t Sound::arpeggioStepSize[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 114 uint8_t Sound::tremoloStepDuration[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 115 int8_t Sound::tremoloStepSize[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 116
Pokitto 31:f4b9b85c7b62 117 // instrument data
Pokitto 31:f4b9b85c7b62 118 uint16_t *Sound::instrumentData[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 119 uint8_t Sound::instrumentLength[NUM_CHANNELS]; //number of steps in the instrument
Pokitto 31:f4b9b85c7b62 120 uint8_t Sound::instrumentLooping[NUM_CHANNELS]; //how many steps to loop on when the last step of the instrument is reached
Pokitto 31:f4b9b85c7b62 121 uint16_t Sound::instrumentCursor[NUM_CHANNELS]; //which step is being played
Pokitto 31:f4b9b85c7b62 122 uint8_t Sound::instrumentNextChange[NUM_CHANNELS]; //how many frames before the next step
Pokitto 31:f4b9b85c7b62 123
Pokitto 31:f4b9b85c7b62 124 //current step data
Pokitto 31:f4b9b85c7b62 125 int8_t Sound::stepVolume[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 126 uint8_t Sound::stepPitch[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 127 uint8_t Sound::chanVolumes[NUM_CHANNELS];
Pokitto 31:f4b9b85c7b62 128
Pokitto 31:f4b9b85c7b62 129 #if (POK_ENABLE_SOUND < 1)
Pokitto 31:f4b9b85c7b62 130 #define NUM_CHANNELS 0
Pokitto 31:f4b9b85c7b62 131 #endif
Pokitto 31:f4b9b85c7b62 132
Pokitto 31:f4b9b85c7b62 133 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 134 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 135 uint8_t sbyte;
Pokitto 31:f4b9b85c7b62 136 #else
Pokitto 31:f4b9b85c7b62 137 uint8_t sbyte;
Pokitto 31:f4b9b85c7b62 138 float pwm1;
Pokitto 31:f4b9b85c7b62 139 #endif // POK_SIM
Pokitto 31:f4b9b85c7b62 140
Pokitto 31:f4b9b85c7b62 141 //declare these variables globally for faster access
Pokitto 31:f4b9b85c7b62 142 uint8_t _rand = 1;
Pokitto 31:f4b9b85c7b62 143 uint8_t _chanCount[NUM_CHANNELS]; //counts until the next change of the waveform
Pokitto 31:f4b9b85c7b62 144 bool _chanState[NUM_CHANNELS]; //if the waveform is currently high or low
Pokitto 31:f4b9b85c7b62 145 uint8_t _chanHalfPeriod[NUM_CHANNELS]; //duration of half the period of the waveform
Pokitto 31:f4b9b85c7b62 146 uint8_t _chanOutputVolume[NUM_CHANNELS]; //amplitude of the outputted waveform
Pokitto 31:f4b9b85c7b62 147 uint8_t _chanOutput[NUM_CHANNELS]; //current value of the outputted waveform
Pokitto 31:f4b9b85c7b62 148 bool _chanNoise[NUM_CHANNELS]; //if a random value should be added to the waveform to generate noise
Pokitto 31:f4b9b85c7b62 149
Pokitto 31:f4b9b85c7b62 150 #if POK_GBSOUND > 0
Pokitto 31:f4b9b85c7b62 151 const uint16_t squareWaveInstrument[] = {0x0101, 0x03F7};
Pokitto 31:f4b9b85c7b62 152 const uint16_t noiseInstrument[] = {0x0101, 0x03FF};
Pokitto 31:f4b9b85c7b62 153 const uint16_t* const defaultInstruments[] = {squareWaveInstrument,noiseInstrument};
Pokitto 31:f4b9b85c7b62 154
Pokitto 31:f4b9b85c7b62 155 const uint16_t playOKPattern[] = {0x0005,0x138,0x168,0x0000};
Pokitto 31:f4b9b85c7b62 156 const uint16_t playCancelPattern[] = {0x0005,0x168,0x138,0x0000};
Pokitto 31:f4b9b85c7b62 157 const uint16_t playTickP[] = {0x0045,0x168,0x0000};
Pokitto 31:f4b9b85c7b62 158 #endif
Pokitto 31:f4b9b85c7b62 159 #if(EXTENDED_NOTE_RANGE > 0)
Pokitto 31:f4b9b85c7b62 160 //extended note range
Pokitto 31:f4b9b85c7b62 161 #define NUM_PITCH 59
Pokitto 31:f4b9b85c7b62 162 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};
Pokitto 31:f4b9b85c7b62 163 #else
Pokitto 31:f4b9b85c7b62 164 //regular note range
Pokitto 31:f4b9b85c7b62 165 #define NUM_PITCH 36
Pokitto 31:f4b9b85c7b62 166 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};
Pokitto 31:f4b9b85c7b62 167 #endif
Pokitto 31:f4b9b85c7b62 168
Pokitto 31:f4b9b85c7b62 169 #endif
Pokitto 31:f4b9b85c7b62 170
Pokitto 31:f4b9b85c7b62 171 void Pokitto::audio_IRQ() {
Pokitto 31:f4b9b85c7b62 172 #if POK_STREAMING_MUSIC > 0
Pokitto 31:f4b9b85c7b62 173 #if POK_STREAMFREQ_HALVE > 0
Pokitto 31:f4b9b85c7b62 174 streamstep = 1-streamstep;
Pokitto 31:f4b9b85c7b62 175 #else
Pokitto 31:f4b9b85c7b62 176 streamstep=1;
Pokitto 31:f4b9b85c7b62 177 #endif
Pokitto 31:f4b9b85c7b62 178
Pokitto 31:f4b9b85c7b62 179 streamstep &= streamon; //check if stream is on
Pokitto 31:f4b9b85c7b62 180
Pokitto 31:f4b9b85c7b62 181 if(streamvol && streamstep) {
Pokitto 31:f4b9b85c7b62 182 uint8_t output = (*currentPtr++);
Pokitto 31:f4b9b85c7b62 183 sbyte = output;
Pokitto 31:f4b9b85c7b62 184 } else {
Pokitto 31:f4b9b85c7b62 185 sbyte = 0; // duty cycle
Pokitto 31:f4b9b85c7b62 186 }
Pokitto 31:f4b9b85c7b62 187
Pokitto 31:f4b9b85c7b62 188 if (currentPtr >= endPtr)
Pokitto 31:f4b9b85c7b62 189 {
Pokitto 31:f4b9b85c7b62 190 currentBuffer++;
Pokitto 31:f4b9b85c7b62 191 if (currentBuffer==4) currentBuffer=0;
Pokitto 31:f4b9b85c7b62 192 currentPtr = buffers[currentBuffer];
Pokitto 31:f4b9b85c7b62 193 endPtr = currentPtr + BUFFER_SIZE;
Pokitto 31:f4b9b85c7b62 194 }
Pokitto 31:f4b9b85c7b62 195
Pokitto 31:f4b9b85c7b62 196 #endif // POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 197 #if (NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 198 Sound::generateOutput();
Pokitto 31:f4b9b85c7b62 199 #endif
Pokitto 31:f4b9b85c7b62 200 }
Pokitto 31:f4b9b85c7b62 201
Pokitto 31:f4b9b85c7b62 202 void Sound::volumeUp() {
Pokitto 31:f4b9b85c7b62 203 if (globalVolume>VOLUME_HEADPHONE_MAX) setVolume(getVolume()+VOLUME_STEP*2);
Pokitto 31:f4b9b85c7b62 204 else setVolume(getVolume()+VOLUME_STEP);
Pokitto 31:f4b9b85c7b62 205 }
Pokitto 31:f4b9b85c7b62 206
Pokitto 31:f4b9b85c7b62 207 void Sound::volumeDown() {
Pokitto 31:f4b9b85c7b62 208 if (globalVolume>VOLUME_HEADPHONE_MAX) setVolume(getVolume()-VOLUME_STEP*4);
Pokitto 31:f4b9b85c7b62 209 else setVolume(getVolume()-VOLUME_STEP);
Pokitto 31:f4b9b85c7b62 210 }
Pokitto 31:f4b9b85c7b62 211
Pokitto 31:f4b9b85c7b62 212
Pokitto 31:f4b9b85c7b62 213 void Sound::setMaxVol(int16_t v) {
Pokitto 31:f4b9b85c7b62 214 if (v < 0) v = 0; //prevent nasty wraparound
Pokitto 31:f4b9b85c7b62 215 if (v > VOLUME_SPEAKER_MAX) {
Pokitto 31:f4b9b85c7b62 216 v = VOLUME_SPEAKER_MAX;
Pokitto 31:f4b9b85c7b62 217 }
Pokitto 31:f4b9b85c7b62 218 volumeMax = v;
Pokitto 31:f4b9b85c7b62 219 setVolume(globalVolume);
Pokitto 31:f4b9b85c7b62 220 }
Pokitto 31:f4b9b85c7b62 221
Pokitto 31:f4b9b85c7b62 222 uint16_t Sound::getMaxVol() {
Pokitto 31:f4b9b85c7b62 223 return volumeMax;
Pokitto 31:f4b9b85c7b62 224 }
Pokitto 31:f4b9b85c7b62 225
Pokitto 31:f4b9b85c7b62 226 void Sound::updateStream() {
Pokitto 31:f4b9b85c7b62 227 #if POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 228 if (oldBuffer != currentBuffer) {
Pokitto 31:f4b9b85c7b62 229 if (currentBuffer==0) fileReadBytes(&buffers[3][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 230 else if (currentBuffer==1) fileReadBytes(&buffers[0][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 231 else if (currentBuffer==2) fileReadBytes(&buffers[1][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 232 else fileReadBytes(&buffers[2][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 233 oldBuffer = currentBuffer;
Pokitto 31:f4b9b85c7b62 234 streamcounter += BUFFER_SIZE;
Pokitto 31:f4b9b85c7b62 235 }
Pokitto 31:f4b9b85c7b62 236
Pokitto 31:f4b9b85c7b62 237 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 238 if ( streamcounter > fs.fsize - (BUFFER_SIZE)) {
Pokitto 31:f4b9b85c7b62 239 #else
Pokitto 31:f4b9b85c7b62 240 if ( streamcounter > getFileLength() - (BUFFER_SIZE)) {
Pokitto 31:f4b9b85c7b62 241 #endif
Pokitto 31:f4b9b85c7b62 242 streamcounter=0;
Pokitto 31:f4b9b85c7b62 243 #if POK_STREAM_LOOP > 0
Pokitto 31:f4b9b85c7b62 244 fileRewind();
Pokitto 31:f4b9b85c7b62 245 #endif
Pokitto 31:f4b9b85c7b62 246 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 247 streamon=0;
Pokitto 31:f4b9b85c7b62 248 #endif // POK_SIM
Pokitto 31:f4b9b85c7b62 249 }
Pokitto 31:f4b9b85c7b62 250 #endif
Pokitto 31:f4b9b85c7b62 251 }
Pokitto 31:f4b9b85c7b62 252
Pokitto 31:f4b9b85c7b62 253 void Sound::begin() {
Pokitto 31:f4b9b85c7b62 254 #if POK_ENABLE_SOUND > 0
Pokitto 31:f4b9b85c7b62 255 soundInit();
Pokitto 31:f4b9b85c7b62 256 ampEnable(true);
Pokitto 31:f4b9b85c7b62 257 #endif
Pokitto 31:f4b9b85c7b62 258 #if (NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 259 #if POK_ENABLE_SOUND > 0
Pokitto 31:f4b9b85c7b62 260 #if POK_GBSOUND > 0
Pokitto 31:f4b9b85c7b62 261 prescaler = 1;
Pokitto 31:f4b9b85c7b62 262 for(byte i=0; i<NUM_CHANNELS; i++){
Pokitto 31:f4b9b85c7b62 263 chanVolumes[i] = VOLUME_CHANNEL_MAX;
Pokitto 31:f4b9b85c7b62 264 changeInstrumentSet(defaultInstruments, i); //load default instruments. #0:square wave, #1: noise
Pokitto 31:f4b9b85c7b62 265 command(CMD_INSTRUMENT, 0, 0, i); //set the default instrument to square wave
Pokitto 31:f4b9b85c7b62 266 }
Pokitto 31:f4b9b85c7b62 267 #endif // POK_GBSOUND
Pokitto 31:f4b9b85c7b62 268 #endif //POK_ENABLE_SOUND
Pokitto 31:f4b9b85c7b62 269 #endif
Pokitto 31:f4b9b85c7b62 270 }
Pokitto 31:f4b9b85c7b62 271
Pokitto 31:f4b9b85c7b62 272 void Sound::playTrack(const uint16_t* track, uint8_t channel){
Pokitto 31:f4b9b85c7b62 273 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 274 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 275 return;
Pokitto 31:f4b9b85c7b62 276 stopTrack(channel);
Pokitto 31:f4b9b85c7b62 277 trackCursor[channel] = 0;
Pokitto 31:f4b9b85c7b62 278 trackData[channel] = (uint16_t*)track;
Pokitto 31:f4b9b85c7b62 279 trackIsPlaying[channel] = true;
Pokitto 31:f4b9b85c7b62 280 #endif
Pokitto 31:f4b9b85c7b62 281 }
Pokitto 31:f4b9b85c7b62 282
Pokitto 31:f4b9b85c7b62 283 void Sound::stopTrack(uint8_t channel){
Pokitto 31:f4b9b85c7b62 284 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 285 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 286 return;
Pokitto 31:f4b9b85c7b62 287 trackIsPlaying[channel] = false;
Pokitto 31:f4b9b85c7b62 288 stopPattern(channel);
Pokitto 31:f4b9b85c7b62 289 #endif
Pokitto 31:f4b9b85c7b62 290 }
Pokitto 31:f4b9b85c7b62 291
Pokitto 31:f4b9b85c7b62 292 void Sound::stopTrack(){
Pokitto 31:f4b9b85c7b62 293 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 294 for(uint8_t i=0; i<NUM_CHANNELS; i++){
Pokitto 31:f4b9b85c7b62 295 stopTrack(i);
Pokitto 31:f4b9b85c7b62 296 }
Pokitto 31:f4b9b85c7b62 297 #endif
Pokitto 31:f4b9b85c7b62 298 }
Pokitto 31:f4b9b85c7b62 299
Pokitto 31:f4b9b85c7b62 300 void Sound::updateTrack(uint8_t channel){
Pokitto 31:f4b9b85c7b62 301 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 302 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 303 return;
Pokitto 31:f4b9b85c7b62 304 if(trackIsPlaying[channel] && !patternIsPlaying[channel]){
Pokitto 31:f4b9b85c7b62 305 uint16_t data = pgm_read_word(trackData[channel] + trackCursor[channel]);
Pokitto 31:f4b9b85c7b62 306 if(data == 0xFFFF){ //en of the track
Pokitto 31:f4b9b85c7b62 307 trackIsPlaying[channel] = false;
Pokitto 31:f4b9b85c7b62 308 return;
Pokitto 31:f4b9b85c7b62 309 }
Pokitto 31:f4b9b85c7b62 310 uint8_t patternID = data & 0xFF;
Pokitto 31:f4b9b85c7b62 311 data >>= 8;
Pokitto 31:f4b9b85c7b62 312 patternPitch[channel] = data;
Pokitto 31:f4b9b85c7b62 313 playPattern((const uint16_t*)pgm_read_word(&(patternSet[channel][patternID])), channel);
Pokitto 31:f4b9b85c7b62 314 trackCursor[channel] ++;
Pokitto 31:f4b9b85c7b62 315 }
Pokitto 31:f4b9b85c7b62 316 #endif
Pokitto 31:f4b9b85c7b62 317 }
Pokitto 31:f4b9b85c7b62 318
Pokitto 31:f4b9b85c7b62 319 void Sound::updateTrack(){
Pokitto 31:f4b9b85c7b62 320 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 321 for (uint8_t i=0; i<NUM_CHANNELS; i++){
Pokitto 31:f4b9b85c7b62 322 updateTrack(i);
Pokitto 31:f4b9b85c7b62 323 }
Pokitto 31:f4b9b85c7b62 324 #endif
Pokitto 31:f4b9b85c7b62 325 }
Pokitto 31:f4b9b85c7b62 326
Pokitto 31:f4b9b85c7b62 327 void Sound::changePatternSet(const uint16_t* const* patterns, uint8_t channel){
Pokitto 31:f4b9b85c7b62 328 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 329 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 330 return;
Pokitto 31:f4b9b85c7b62 331 patternSet[channel] = (uint16_t**)patterns;
Pokitto 31:f4b9b85c7b62 332 #endif
Pokitto 31:f4b9b85c7b62 333 }
Pokitto 31:f4b9b85c7b62 334
Pokitto 31:f4b9b85c7b62 335 void Sound::playPattern(const uint16_t* pattern, uint8_t channel){
Pokitto 31:f4b9b85c7b62 336 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 337 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 338 return;
Pokitto 31:f4b9b85c7b62 339 stopPattern(channel);
Pokitto 31:f4b9b85c7b62 340 patternData[channel] = (uint16_t*)pattern;
Pokitto 31:f4b9b85c7b62 341 patternCursor[channel] = 0;
Pokitto 31:f4b9b85c7b62 342 patternIsPlaying[channel] = true;
Pokitto 31:f4b9b85c7b62 343 noteVolume[channel] = 9;
Pokitto 31:f4b9b85c7b62 344 //reinit commands
Pokitto 31:f4b9b85c7b62 345 volumeSlideStepDuration[channel] = 0;
Pokitto 31:f4b9b85c7b62 346 arpeggioStepDuration[channel] = 0;
Pokitto 31:f4b9b85c7b62 347 tremoloStepDuration[channel] = 0;
Pokitto 31:f4b9b85c7b62 348 #endif
Pokitto 31:f4b9b85c7b62 349 }
Pokitto 31:f4b9b85c7b62 350
Pokitto 31:f4b9b85c7b62 351 void Sound::updatePattern(){
Pokitto 31:f4b9b85c7b62 352 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 353 for (uint8_t i=0; i<NUM_CHANNELS; i++){
Pokitto 31:f4b9b85c7b62 354 updatePattern(i);
Pokitto 31:f4b9b85c7b62 355 }
Pokitto 31:f4b9b85c7b62 356 #endif
Pokitto 31:f4b9b85c7b62 357 }
Pokitto 31:f4b9b85c7b62 358
Pokitto 31:f4b9b85c7b62 359 void Sound::changeInstrumentSet(const uint16_t* const* instruments, uint8_t channel){
Pokitto 31:f4b9b85c7b62 360 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 361 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 362 return;
Pokitto 31:f4b9b85c7b62 363 instrumentSet[channel] = (uint16_t**)instruments;
Pokitto 31:f4b9b85c7b62 364 #endif
Pokitto 31:f4b9b85c7b62 365 }
Pokitto 31:f4b9b85c7b62 366
Pokitto 31:f4b9b85c7b62 367 void Sound::updatePattern(uint8_t i){
Pokitto 31:f4b9b85c7b62 368 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 369 if(i>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 370 return;
Pokitto 31:f4b9b85c7b62 371 if(patternIsPlaying[i]){
Pokitto 31:f4b9b85c7b62 372 if(noteDuration[i]==0){//if the end of the previous note is reached
Pokitto 31:f4b9b85c7b62 373
Pokitto 31:f4b9b85c7b62 374 uint16_t data = pgm_read_word(patternCursor[i] + patternData[i]);
Pokitto 31:f4b9b85c7b62 375
Pokitto 31:f4b9b85c7b62 376 if(data == 0){ //end of the pattern reached
Pokitto 31:f4b9b85c7b62 377 if(patternLooping[i] == true){
Pokitto 31:f4b9b85c7b62 378 patternCursor[i] = 0;
Pokitto 31:f4b9b85c7b62 379 data = pgm_read_word(patternCursor[i] + patternData[i]);
Pokitto 31:f4b9b85c7b62 380 }
Pokitto 31:f4b9b85c7b62 381 else{
Pokitto 31:f4b9b85c7b62 382 patternIsPlaying[i] = false;
Pokitto 31:f4b9b85c7b62 383 if(trackIsPlaying[i]){ //if this pattern is part of a track, get the next pattern
Pokitto 31:f4b9b85c7b62 384 updateTrack(i);
Pokitto 31:f4b9b85c7b62 385 data = pgm_read_word(patternCursor[i] + patternData[i]);
Pokitto 31:f4b9b85c7b62 386 } else {
Pokitto 31:f4b9b85c7b62 387 stopNote(i);
Pokitto 31:f4b9b85c7b62 388 //Serial.print("pattern end\n");
Pokitto 31:f4b9b85c7b62 389 return;
Pokitto 31:f4b9b85c7b62 390 }
Pokitto 31:f4b9b85c7b62 391 }
Pokitto 31:f4b9b85c7b62 392 }
Pokitto 31:f4b9b85c7b62 393
Pokitto 31:f4b9b85c7b62 394 while (data & 0x0001){ //read all commands and instrument changes
Pokitto 31:f4b9b85c7b62 395 data >>= 2;
Pokitto 31:f4b9b85c7b62 396 //Serial.print("\ncmd\t");
Pokitto 31:f4b9b85c7b62 397 uint8_t cmd = data & 0x0F;
Pokitto 31:f4b9b85c7b62 398 data >>= 4;
Pokitto 31:f4b9b85c7b62 399 uint8_t X = data & 0x1F;
Pokitto 31:f4b9b85c7b62 400 data >>= 5;
Pokitto 31:f4b9b85c7b62 401 int8_t Y = data - 16;
Pokitto 31:f4b9b85c7b62 402 command(cmd,X,Y,i);
Pokitto 31:f4b9b85c7b62 403 patternCursor[i]++;
Pokitto 31:f4b9b85c7b62 404 data = pgm_read_word(patternCursor[i] + patternData[i]);
Pokitto 31:f4b9b85c7b62 405 }
Pokitto 31:f4b9b85c7b62 406 data >>= 2;
Pokitto 31:f4b9b85c7b62 407
Pokitto 31:f4b9b85c7b62 408 uint8_t pitch = data & 0x003F;
Pokitto 31:f4b9b85c7b62 409 data >>= 6;
Pokitto 31:f4b9b85c7b62 410
Pokitto 31:f4b9b85c7b62 411 uint8_t duration = data;
Pokitto 31:f4b9b85c7b62 412 if(pitch != 63){
Pokitto 31:f4b9b85c7b62 413 }
Pokitto 31:f4b9b85c7b62 414
Pokitto 31:f4b9b85c7b62 415 playNote(pitch, duration, i);
Pokitto 31:f4b9b85c7b62 416
Pokitto 31:f4b9b85c7b62 417 patternCursor[i]++;
Pokitto 31:f4b9b85c7b62 418 }
Pokitto 31:f4b9b85c7b62 419 }
Pokitto 31:f4b9b85c7b62 420 #endif
Pokitto 31:f4b9b85c7b62 421 }
Pokitto 31:f4b9b85c7b62 422
Pokitto 31:f4b9b85c7b62 423 void Sound::stopPattern(uint8_t channel){
Pokitto 31:f4b9b85c7b62 424 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 425 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 426 return;
Pokitto 31:f4b9b85c7b62 427 stopNote(channel);
Pokitto 31:f4b9b85c7b62 428 patternIsPlaying[channel] = false;
Pokitto 31:f4b9b85c7b62 429 #endif
Pokitto 31:f4b9b85c7b62 430 }
Pokitto 31:f4b9b85c7b62 431
Pokitto 31:f4b9b85c7b62 432 void Sound::stopPattern(){
Pokitto 31:f4b9b85c7b62 433 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 434 for(uint8_t i=0; i<NUM_CHANNELS; i++){
Pokitto 31:f4b9b85c7b62 435 stopPattern(i);
Pokitto 31:f4b9b85c7b62 436 }
Pokitto 31:f4b9b85c7b62 437 #endif
Pokitto 31:f4b9b85c7b62 438 }
Pokitto 31:f4b9b85c7b62 439
Pokitto 31:f4b9b85c7b62 440 void Sound::command(uint8_t cmd, uint8_t X, int8_t Y, uint8_t i){
Pokitto 31:f4b9b85c7b62 441 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 442 if(i>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 443 return;
Pokitto 31:f4b9b85c7b62 444 switch(cmd){
Pokitto 31:f4b9b85c7b62 445 case CMD_VOLUME: //volume
Pokitto 31:f4b9b85c7b62 446 X = constrain((int8_t)X, 0, 10);
Pokitto 31:f4b9b85c7b62 447 noteVolume[i] = X;
Pokitto 31:f4b9b85c7b62 448 break;
Pokitto 31:f4b9b85c7b62 449 case CMD_INSTRUMENT: //instrument
Pokitto 31:f4b9b85c7b62 450 instrumentData[i] = (uint16_t*)pgm_read_word(&(instrumentSet[i][X]));
Pokitto 31:f4b9b85c7b62 451 instrumentLength[i] = pgm_read_word(&(instrumentData[i][0])) & 0x00FF; //8 LSB
Pokitto 31:f4b9b85c7b62 452 instrumentLength[i] *= prescaler;
Pokitto 31:f4b9b85c7b62 453 instrumentLooping[i] = min2((pgm_read_word(&(instrumentData[i][0])) >> 8), instrumentLength[i]); //8 MSB - check that the loop is shorter than the instrument length
Pokitto 31:f4b9b85c7b62 454 instrumentLooping[i] *= prescaler;
Pokitto 31:f4b9b85c7b62 455 break;
Pokitto 31:f4b9b85c7b62 456 case CMD_SLIDE: //volume slide
Pokitto 31:f4b9b85c7b62 457 volumeSlideStepDuration[i] = X * prescaler;
Pokitto 31:f4b9b85c7b62 458 volumeSlideStepSize[i] = Y;
Pokitto 31:f4b9b85c7b62 459 break;
Pokitto 31:f4b9b85c7b62 460 case CMD_ARPEGGIO:
Pokitto 31:f4b9b85c7b62 461 arpeggioStepDuration[i] = X * prescaler;
Pokitto 31:f4b9b85c7b62 462 arpeggioStepSize[i] = Y;
Pokitto 31:f4b9b85c7b62 463 break;
Pokitto 31:f4b9b85c7b62 464 case CMD_TREMOLO:
Pokitto 31:f4b9b85c7b62 465 tremoloStepDuration[i] = X * prescaler;
Pokitto 31:f4b9b85c7b62 466 tremoloStepSize[i] = Y;
Pokitto 31:f4b9b85c7b62 467 break;
Pokitto 31:f4b9b85c7b62 468 default:
Pokitto 31:f4b9b85c7b62 469 break;
Pokitto 31:f4b9b85c7b62 470 }
Pokitto 31:f4b9b85c7b62 471 #endif
Pokitto 31:f4b9b85c7b62 472 }
Pokitto 31:f4b9b85c7b62 473
Pokitto 31:f4b9b85c7b62 474 void Sound::playNote(uint8_t pitch, uint8_t duration, uint8_t channel){
Pokitto 31:f4b9b85c7b62 475 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 476 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 477 return;
Pokitto 31:f4b9b85c7b62 478 //set note
Pokitto 31:f4b9b85c7b62 479 notePitch[channel] = pitch;
Pokitto 31:f4b9b85c7b62 480 noteDuration[channel] = duration * prescaler;
Pokitto 31:f4b9b85c7b62 481 //reinit vars
Pokitto 31:f4b9b85c7b62 482 instrumentNextChange[channel] = 0;
Pokitto 31:f4b9b85c7b62 483 instrumentCursor[channel] = 0;
Pokitto 31:f4b9b85c7b62 484 notePlaying[channel] = true;
Pokitto 31:f4b9b85c7b62 485 _chanState[channel] = true;
Pokitto 31:f4b9b85c7b62 486 commandsCounter[channel] = 0;
Pokitto 31:f4b9b85c7b62 487 #endif
Pokitto 31:f4b9b85c7b62 488 }
Pokitto 31:f4b9b85c7b62 489
Pokitto 31:f4b9b85c7b62 490 void Sound::stopNote(uint8_t channel) {
Pokitto 31:f4b9b85c7b62 491 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 492 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 493 return;
Pokitto 31:f4b9b85c7b62 494 notePlaying[channel] = false;
Pokitto 31:f4b9b85c7b62 495 //counters
Pokitto 31:f4b9b85c7b62 496 noteDuration[channel] = 0;
Pokitto 31:f4b9b85c7b62 497 instrumentCursor[channel] = 0;
Pokitto 31:f4b9b85c7b62 498 commandsCounter[channel] = 0;
Pokitto 31:f4b9b85c7b62 499 //output
Pokitto 31:f4b9b85c7b62 500 _chanOutput[channel] = 0;
Pokitto 31:f4b9b85c7b62 501 _chanOutputVolume[channel] = 0;
Pokitto 31:f4b9b85c7b62 502 _chanState[channel] = false;
Pokitto 31:f4b9b85c7b62 503 updateOutput();
Pokitto 31:f4b9b85c7b62 504 #endif
Pokitto 31:f4b9b85c7b62 505 }
Pokitto 31:f4b9b85c7b62 506
Pokitto 31:f4b9b85c7b62 507 void Sound::stopNote() {
Pokitto 31:f4b9b85c7b62 508 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 509 for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
Pokitto 31:f4b9b85c7b62 510 stopNote(channel);
Pokitto 31:f4b9b85c7b62 511 }
Pokitto 31:f4b9b85c7b62 512 #endif
Pokitto 31:f4b9b85c7b62 513 }
Pokitto 31:f4b9b85c7b62 514
Pokitto 31:f4b9b85c7b62 515 void Sound::updateNote() {
Pokitto 31:f4b9b85c7b62 516 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 517 for (uint8_t i = 0; i < NUM_CHANNELS; i++) {
Pokitto 31:f4b9b85c7b62 518 updateNote(i);
Pokitto 31:f4b9b85c7b62 519 }
Pokitto 31:f4b9b85c7b62 520 #endif
Pokitto 31:f4b9b85c7b62 521 }
Pokitto 31:f4b9b85c7b62 522
Pokitto 31:f4b9b85c7b62 523 void Sound::updateNote(uint8_t i) {
Pokitto 31:f4b9b85c7b62 524 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 525 if(i>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 526 return;
Pokitto 31:f4b9b85c7b62 527 if (notePlaying[i]) {
Pokitto 31:f4b9b85c7b62 528
Pokitto 31:f4b9b85c7b62 529 if(noteDuration[i] == 0){
Pokitto 31:f4b9b85c7b62 530 stopNote(i);
Pokitto 31:f4b9b85c7b62 531 //Serial.println("note end");
Pokitto 31:f4b9b85c7b62 532 return;
Pokitto 31:f4b9b85c7b62 533 } else {
Pokitto 31:f4b9b85c7b62 534 noteDuration[i]--;
Pokitto 31:f4b9b85c7b62 535 }
Pokitto 31:f4b9b85c7b62 536
Pokitto 31:f4b9b85c7b62 537 if (instrumentNextChange[i] == 0) {
Pokitto 31:f4b9b85c7b62 538
Pokitto 31:f4b9b85c7b62 539 //read the step data from the progmem and decode it
Pokitto 31:f4b9b85c7b62 540 uint16_t thisStep = pgm_read_word(&(instrumentData[i][1 + instrumentCursor[i]]));
Pokitto 31:f4b9b85c7b62 541
Pokitto 31:f4b9b85c7b62 542 stepVolume[i] = thisStep & 0x0007;
Pokitto 31:f4b9b85c7b62 543 thisStep >>= 3;
Pokitto 31:f4b9b85c7b62 544
Pokitto 31:f4b9b85c7b62 545 uint8_t stepNoise = thisStep & 0x0001;
Pokitto 31:f4b9b85c7b62 546 thisStep >>= 1;
Pokitto 31:f4b9b85c7b62 547
Pokitto 31:f4b9b85c7b62 548 uint8_t stepDuration = thisStep & 0x003F;
Pokitto 31:f4b9b85c7b62 549 thisStep >>= 6;
Pokitto 31:f4b9b85c7b62 550
Pokitto 31:f4b9b85c7b62 551 stepPitch[i] = thisStep;
Pokitto 31:f4b9b85c7b62 552
Pokitto 31:f4b9b85c7b62 553 //apply the step settings
Pokitto 31:f4b9b85c7b62 554 instrumentNextChange[i] = stepDuration * prescaler;
Pokitto 31:f4b9b85c7b62 555
Pokitto 31:f4b9b85c7b62 556 _chanNoise[i] = stepNoise;
Pokitto 31:f4b9b85c7b62 557
Pokitto 31:f4b9b85c7b62 558
Pokitto 31:f4b9b85c7b62 559 instrumentCursor[i]++;
Pokitto 31:f4b9b85c7b62 560
Pokitto 31:f4b9b85c7b62 561 if (instrumentCursor[i] >= instrumentLength[i]) {
Pokitto 31:f4b9b85c7b62 562 if (instrumentLooping[i]) {
Pokitto 31:f4b9b85c7b62 563 instrumentCursor[i] = instrumentLength[i] - instrumentLooping[i];
Pokitto 31:f4b9b85c7b62 564 } else {
Pokitto 31:f4b9b85c7b62 565 stopNote(i);
Pokitto 31:f4b9b85c7b62 566 }
Pokitto 31:f4b9b85c7b62 567 }
Pokitto 31:f4b9b85c7b62 568 }
Pokitto 31:f4b9b85c7b62 569 instrumentNextChange[i]--;
Pokitto 31:f4b9b85c7b62 570
Pokitto 31:f4b9b85c7b62 571 commandsCounter[i]++;
Pokitto 31:f4b9b85c7b62 572
Pokitto 31:f4b9b85c7b62 573 //UPDATE VALUES
Pokitto 31:f4b9b85c7b62 574 //pitch
Pokitto 31:f4b9b85c7b62 575 outputPitch[i] = notePitch[i] + stepPitch[i] + patternPitch[i];
Pokitto 31:f4b9b85c7b62 576 if(arpeggioStepDuration[i]){
Pokitto 31:f4b9b85c7b62 577 outputPitch[i] += commandsCounter[i] / arpeggioStepDuration[i] * arpeggioStepSize[i];
Pokitto 31:f4b9b85c7b62 578 }
Pokitto 31:f4b9b85c7b62 579 outputPitch[i] = (outputPitch[i] + NUM_PITCH) % NUM_PITCH; //wrap
Pokitto 31:f4b9b85c7b62 580 //volume
Pokitto 31:f4b9b85c7b62 581 outputVolume[i] = noteVolume[i];
Pokitto 31:f4b9b85c7b62 582 if(volumeSlideStepDuration[i]){
Pokitto 31:f4b9b85c7b62 583 outputVolume[i] += commandsCounter[i] / volumeSlideStepDuration[i] * volumeSlideStepSize[i];
Pokitto 31:f4b9b85c7b62 584 }
Pokitto 31:f4b9b85c7b62 585 if(tremoloStepDuration[i]){
Pokitto 31:f4b9b85c7b62 586 outputVolume[i] += ((commandsCounter[i]/tremoloStepDuration[i]) % 2) * tremoloStepSize[i];
Pokitto 31:f4b9b85c7b62 587 }
Pokitto 31:f4b9b85c7b62 588 outputVolume[i] = constrain(outputVolume[i], 0, 9);
Pokitto 31:f4b9b85c7b62 589 if(notePitch[i] == 63){
Pokitto 31:f4b9b85c7b62 590 outputVolume[i] = 0;
Pokitto 31:f4b9b85c7b62 591 }
Pokitto 31:f4b9b85c7b62 592 // jonnehw noInterrupts();
Pokitto 31:f4b9b85c7b62 593 _chanHalfPeriod[i] = pgm_read_byte(_halfPeriods + outputPitch[i]);
Pokitto 31:f4b9b85c7b62 594 _chanOutput[i] = _chanOutputVolume[i] = outputVolume[i] * (globalVolume>>GLOBVOL_SHIFT) * chanVolumes[i] * stepVolume[i];
Pokitto 31:f4b9b85c7b62 595 //Serial.println(outputVolume[i]);
Pokitto 31:f4b9b85c7b62 596 // jonnehw interrupts();
Pokitto 31:f4b9b85c7b62 597 }
Pokitto 31:f4b9b85c7b62 598 #endif
Pokitto 31:f4b9b85c7b62 599 }
Pokitto 31:f4b9b85c7b62 600
Pokitto 31:f4b9b85c7b62 601 void Sound::setChannelHalfPeriod(uint8_t channel, uint8_t halfPeriod) {
Pokitto 31:f4b9b85c7b62 602 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 603 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 604 return;
Pokitto 31:f4b9b85c7b62 605 _chanHalfPeriod[channel] = halfPeriod;
Pokitto 31:f4b9b85c7b62 606 _chanState[channel] = false;
Pokitto 31:f4b9b85c7b62 607 _chanCount[channel] = 0;
Pokitto 31:f4b9b85c7b62 608 updateOutput();
Pokitto 31:f4b9b85c7b62 609 #endif
Pokitto 31:f4b9b85c7b62 610 }
Pokitto 31:f4b9b85c7b62 611
Pokitto 31:f4b9b85c7b62 612
Pokitto 31:f4b9b85c7b62 613 void Sound::generateOutput() {
Pokitto 31:f4b9b85c7b62 614 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 615 bool outputChanged = false;
Pokitto 31:f4b9b85c7b62 616 //no for loop here, for the performance sake (this function runs 15 000 times per second...)
Pokitto 31:f4b9b85c7b62 617 //CHANNEL 0
Pokitto 31:f4b9b85c7b62 618 if (_chanOutputVolume[0]) {
Pokitto 31:f4b9b85c7b62 619 _chanCount[0]++;
Pokitto 31:f4b9b85c7b62 620 if (_chanCount[0] >= _chanHalfPeriod[0]) {
Pokitto 31:f4b9b85c7b62 621 outputChanged = true;
Pokitto 31:f4b9b85c7b62 622 _chanState[0] = !_chanState[0];
Pokitto 31:f4b9b85c7b62 623 _chanCount[0] = 0;
Pokitto 31:f4b9b85c7b62 624 if (_chanNoise[0]) {
Pokitto 31:f4b9b85c7b62 625 _rand = 67 * _rand + 71;
Pokitto 31:f4b9b85c7b62 626 _chanOutput[0] = _rand % _chanOutputVolume[0];
Pokitto 31:f4b9b85c7b62 627 }
Pokitto 31:f4b9b85c7b62 628 }
Pokitto 31:f4b9b85c7b62 629 }
Pokitto 31:f4b9b85c7b62 630
Pokitto 31:f4b9b85c7b62 631
Pokitto 31:f4b9b85c7b62 632 //CHANNEL 1
Pokitto 31:f4b9b85c7b62 633 #if (NUM_CHANNELS > 1)
Pokitto 31:f4b9b85c7b62 634 if (_chanOutputVolume[1]) {
Pokitto 31:f4b9b85c7b62 635 _chanCount[1]++;
Pokitto 31:f4b9b85c7b62 636 if (_chanCount[1] >= _chanHalfPeriod[1]) {
Pokitto 31:f4b9b85c7b62 637 outputChanged = true;
Pokitto 31:f4b9b85c7b62 638 _chanState[1] = !_chanState[1];
Pokitto 31:f4b9b85c7b62 639 _chanCount[1] = 0;
Pokitto 31:f4b9b85c7b62 640 if (_chanNoise[1]) {
Pokitto 31:f4b9b85c7b62 641 _rand = 67 * _rand + 71;
Pokitto 31:f4b9b85c7b62 642 _chanOutput[1] = _rand % _chanOutputVolume[1];
Pokitto 31:f4b9b85c7b62 643 }
Pokitto 31:f4b9b85c7b62 644 }
Pokitto 31:f4b9b85c7b62 645 }
Pokitto 31:f4b9b85c7b62 646 #endif
Pokitto 31:f4b9b85c7b62 647
Pokitto 31:f4b9b85c7b62 648 //CHANNEL 2
Pokitto 31:f4b9b85c7b62 649 #if (NUM_CHANNELS > 2)
Pokitto 31:f4b9b85c7b62 650 if (_chanOutputVolume[2]) {
Pokitto 31:f4b9b85c7b62 651 _chanCount[2]++;
Pokitto 31:f4b9b85c7b62 652 if (_chanCount[2] >= _chanHalfPeriod[2]) {
Pokitto 31:f4b9b85c7b62 653 outputChanged = true;
Pokitto 31:f4b9b85c7b62 654 _chanState[2] = !_chanState[2];
Pokitto 31:f4b9b85c7b62 655 _chanCount[2] = 0;
Pokitto 31:f4b9b85c7b62 656 if (_chanNoise[2]) {
Pokitto 31:f4b9b85c7b62 657 _rand = 67 * _rand + 71;
Pokitto 31:f4b9b85c7b62 658 _chanOutput[2] = _rand % _chanOutputVolume[2];
Pokitto 31:f4b9b85c7b62 659 }
Pokitto 31:f4b9b85c7b62 660 }
Pokitto 31:f4b9b85c7b62 661 }
Pokitto 31:f4b9b85c7b62 662 #endif
Pokitto 31:f4b9b85c7b62 663
Pokitto 31:f4b9b85c7b62 664 //CHANNEL 3
Pokitto 31:f4b9b85c7b62 665 #if (NUM_CHANNELS > 3)
Pokitto 31:f4b9b85c7b62 666 if (_chanOutputVolume[3]) {
Pokitto 31:f4b9b85c7b62 667 _chanCount[3]++;
Pokitto 31:f4b9b85c7b62 668 if (_chanCount[3] >= _chanHalfPeriod[3]) {
Pokitto 31:f4b9b85c7b62 669 outputChanged = true;
Pokitto 31:f4b9b85c7b62 670 _chanState[3] = !_chanState[3];
Pokitto 31:f4b9b85c7b62 671 _chanCount[3] = 0;
Pokitto 31:f4b9b85c7b62 672 if (_chanNoise[3]) {
Pokitto 31:f4b9b85c7b62 673 _rand = 67 * _rand + 71;
Pokitto 31:f4b9b85c7b62 674 _chanOutput[3] = _rand % _chanOutputVolume[3];
Pokitto 31:f4b9b85c7b62 675 }
Pokitto 31:f4b9b85c7b62 676 }
Pokitto 31:f4b9b85c7b62 677 }
Pokitto 31:f4b9b85c7b62 678 #endif
Pokitto 31:f4b9b85c7b62 679
Pokitto 31:f4b9b85c7b62 680 #if POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 681 if (streamstep) {
Pokitto 31:f4b9b85c7b62 682 outputChanged=true;
Pokitto 31:f4b9b85c7b62 683 }
Pokitto 31:f4b9b85c7b62 684 #endif
Pokitto 31:f4b9b85c7b62 685
Pokitto 31:f4b9b85c7b62 686 if (outputChanged) {
Pokitto 31:f4b9b85c7b62 687 updateOutput();
Pokitto 31:f4b9b85c7b62 688 }
Pokitto 31:f4b9b85c7b62 689 #endif
Pokitto 31:f4b9b85c7b62 690 }
Pokitto 31:f4b9b85c7b62 691
Pokitto 31:f4b9b85c7b62 692 void Sound::updateOutput() {
Pokitto 31:f4b9b85c7b62 693 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 694 uint8_t output = 0;
Pokitto 31:f4b9b85c7b62 695
Pokitto 31:f4b9b85c7b62 696 //CHANNEL 0
Pokitto 31:f4b9b85c7b62 697 if (_chanState[0]) {
Pokitto 31:f4b9b85c7b62 698 output += _chanOutput[0];
Pokitto 31:f4b9b85c7b62 699 }
Pokitto 31:f4b9b85c7b62 700
Pokitto 31:f4b9b85c7b62 701 //CHANNEL 1
Pokitto 31:f4b9b85c7b62 702 #if (NUM_CHANNELS > 1)
Pokitto 31:f4b9b85c7b62 703 if (_chanState[1]) {
Pokitto 31:f4b9b85c7b62 704 output += _chanOutput[1];
Pokitto 31:f4b9b85c7b62 705 }
Pokitto 31:f4b9b85c7b62 706 #endif
Pokitto 31:f4b9b85c7b62 707
Pokitto 31:f4b9b85c7b62 708 //CHANNEL 2
Pokitto 31:f4b9b85c7b62 709 #if (NUM_CHANNELS > 2)
Pokitto 31:f4b9b85c7b62 710 if (_chanState[2]) {
Pokitto 31:f4b9b85c7b62 711 output += _chanOutput[2];
Pokitto 31:f4b9b85c7b62 712 }
Pokitto 31:f4b9b85c7b62 713 #endif
Pokitto 31:f4b9b85c7b62 714
Pokitto 31:f4b9b85c7b62 715 //CHANNEL 3
Pokitto 31:f4b9b85c7b62 716 #if (NUM_CHANNELS > 3)
Pokitto 31:f4b9b85c7b62 717 if (_chanState[3]) {
Pokitto 31:f4b9b85c7b62 718 output += _chanOutput[3];
Pokitto 31:f4b9b85c7b62 719 }
Pokitto 31:f4b9b85c7b62 720 #endif
Pokitto 31:f4b9b85c7b62 721
Pokitto 31:f4b9b85c7b62 722 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 723 #if POK_ENABLE_SOUND
Pokitto 31:f4b9b85c7b62 724 /** HARDWARE **/
Pokitto 31:f4b9b85c7b62 725
Pokitto 31:f4b9b85c7b62 726 #if POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 727 if (streamstep) {
Pokitto 31:f4b9b85c7b62 728 pwmout_write(&audiopwm,(float)sbyte/(float)255);
Pokitto 31:f4b9b85c7b62 729 }
Pokitto 31:f4b9b85c7b62 730 #endif
Pokitto 31:f4b9b85c7b62 731 dac_write((uint8_t)output); //direct hardware mixing baby !
Pokitto 31:f4b9b85c7b62 732 soundbyte = output;
Pokitto 31:f4b9b85c7b62 733 #endif //POK_ENABLE_SOUND
Pokitto 31:f4b9b85c7b62 734 #else
Pokitto 31:f4b9b85c7b62 735 /** SIMULATOR **/
Pokitto 31:f4b9b85c7b62 736 #if POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 737 if (streamstep) {
Pokitto 31:f4b9b85c7b62 738 uint16_t o = output + sbyte;
Pokitto 31:f4b9b85c7b62 739 output = o/2;
Pokitto 31:f4b9b85c7b62 740 }
Pokitto 31:f4b9b85c7b62 741 #endif
Pokitto 31:f4b9b85c7b62 742 soundbyte = output;
Pokitto 31:f4b9b85c7b62 743 #endif // POK_SIM
Pokitto 31:f4b9b85c7b62 744 #endif
Pokitto 31:f4b9b85c7b62 745 }
Pokitto 31:f4b9b85c7b62 746
Pokitto 31:f4b9b85c7b62 747 void Sound::setPatternLooping(bool loop, uint8_t channel) {
Pokitto 31:f4b9b85c7b62 748 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 749 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 750 return;
Pokitto 31:f4b9b85c7b62 751 patternLooping[channel] = loop;
Pokitto 31:f4b9b85c7b62 752 #endif
Pokitto 31:f4b9b85c7b62 753 }
Pokitto 31:f4b9b85c7b62 754
Pokitto 31:f4b9b85c7b62 755 void Sound::playOK(){
Pokitto 31:f4b9b85c7b62 756 #if POK_GBSOUND
Pokitto 31:f4b9b85c7b62 757 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 758 playPattern(playOKPattern,0);
Pokitto 31:f4b9b85c7b62 759 #endif
Pokitto 31:f4b9b85c7b62 760 #endif // POK_GBSOUND
Pokitto 31:f4b9b85c7b62 761 }
Pokitto 31:f4b9b85c7b62 762
Pokitto 31:f4b9b85c7b62 763 void Sound::playCancel(){
Pokitto 31:f4b9b85c7b62 764 #if POK_GBSOUND
Pokitto 31:f4b9b85c7b62 765 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 766 playPattern(playCancelPattern,0);
Pokitto 31:f4b9b85c7b62 767 #endif
Pokitto 31:f4b9b85c7b62 768 #endif
Pokitto 31:f4b9b85c7b62 769 }
Pokitto 31:f4b9b85c7b62 770
Pokitto 31:f4b9b85c7b62 771 void Sound::playTick(){
Pokitto 31:f4b9b85c7b62 772 #if POK_GBSOUND
Pokitto 31:f4b9b85c7b62 773 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 774 playPattern(playTickP,0);
Pokitto 31:f4b9b85c7b62 775 #endif
Pokitto 31:f4b9b85c7b62 776 #endif // POK_GBSOUND
Pokitto 31:f4b9b85c7b62 777 }
Pokitto 31:f4b9b85c7b62 778
Pokitto 31:f4b9b85c7b62 779 void Sound::setVolume(int16_t volume) {
Pokitto 31:f4b9b85c7b62 780 //#if NUM_CHANNELS > 0
Pokitto 31:f4b9b85c7b62 781 if (volume<0) volume = 0;
Pokitto 31:f4b9b85c7b62 782 if (volume>volumeMax) volume = volumeMax;
Pokitto 31:f4b9b85c7b62 783 globalVolume = volume; // % (volumeMax+1);
Pokitto 31:f4b9b85c7b62 784 #ifndef POK_SIM
Pokitto 31:f4b9b85c7b62 785 volume = (volume / 2)-10;
Pokitto 31:f4b9b85c7b62 786 if (volume<0) volume = 0;
Pokitto 31:f4b9b85c7b62 787 #if POK_ENABLE_SOUND > 0
Pokitto 31:f4b9b85c7b62 788 setHWvolume(volume);
Pokitto 31:f4b9b85c7b62 789 #endif
Pokitto 31:f4b9b85c7b62 790 #endif
Pokitto 31:f4b9b85c7b62 791 #if POK_SHOW_VOLUME > 0
Pokitto 31:f4b9b85c7b62 792 _soundc.volbar_visible = VOLUMEBAR_TIMEOUT;
Pokitto 31:f4b9b85c7b62 793 #endif
Pokitto 31:f4b9b85c7b62 794 //#endif
Pokitto 31:f4b9b85c7b62 795 }
Pokitto 31:f4b9b85c7b62 796
Pokitto 31:f4b9b85c7b62 797 uint16_t Sound::getVolume() {
Pokitto 31:f4b9b85c7b62 798 //#if NUM_CHANNELS > 0
Pokitto 31:f4b9b85c7b62 799 return globalVolume;
Pokitto 31:f4b9b85c7b62 800 //#else
Pokitto 31:f4b9b85c7b62 801 // return 0;
Pokitto 31:f4b9b85c7b62 802 //#endif
Pokitto 31:f4b9b85c7b62 803 }
Pokitto 31:f4b9b85c7b62 804
Pokitto 31:f4b9b85c7b62 805 void Sound::setVolume(int8_t volume, uint8_t channel) {
Pokitto 31:f4b9b85c7b62 806 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 807 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 808 return;
Pokitto 31:f4b9b85c7b62 809 volume = (volume > VOLUME_CHANNEL_MAX) ? VOLUME_CHANNEL_MAX : volume;
Pokitto 31:f4b9b85c7b62 810 volume = (volume < 0) ? 0 : volume;
Pokitto 31:f4b9b85c7b62 811 chanVolumes[channel] = volume;
Pokitto 31:f4b9b85c7b62 812 #endif
Pokitto 31:f4b9b85c7b62 813 }
Pokitto 31:f4b9b85c7b62 814
Pokitto 31:f4b9b85c7b62 815 uint8_t Sound::getVolume(uint8_t channel) {
Pokitto 31:f4b9b85c7b62 816 #if(NUM_CHANNELS > 0)
Pokitto 31:f4b9b85c7b62 817 if(channel>=NUM_CHANNELS)
Pokitto 31:f4b9b85c7b62 818 return 255;
Pokitto 31:f4b9b85c7b62 819 return (chanVolumes[channel]);
Pokitto 31:f4b9b85c7b62 820 #else
Pokitto 31:f4b9b85c7b62 821 return 0;
Pokitto 31:f4b9b85c7b62 822 #endif
Pokitto 31:f4b9b85c7b62 823 }
Pokitto 31:f4b9b85c7b62 824
Pokitto 31:f4b9b85c7b62 825 void Sound::playTone(uint8_t os, int frq, uint8_t amp, uint8_t wav,uint8_t arpmode)
Pokitto 31:f4b9b85c7b62 826 {
Pokitto 31:f4b9b85c7b62 827 if (wav>5) wav=0;
Pokitto 31:f4b9b85c7b62 828 if (arpmode>MAX_ARPMODE) arpmode=MAX_ARPMODE;
Pokitto 31:f4b9b85c7b62 829 if (os==1) setOSC(&osc1,1,wav,1,0,0,frq,amp,0,0,0,0,0,0,arpmode,0,0);
Pokitto 31:f4b9b85c7b62 830 else if (os==2) setOSC(&osc2,1,wav,1,0,0,frq,amp,0,0,0,0,0,0,arpmode,0,0);
Pokitto 31:f4b9b85c7b62 831 else if (os==3) setOSC(&osc3,1,wav,1,0,0,frq,amp,0,0,0,0,0,0,arpmode,0,0);
Pokitto 31:f4b9b85c7b62 832 }
Pokitto 31:f4b9b85c7b62 833
Pokitto 31:f4b9b85c7b62 834 void Sound::playTone(uint8_t os, uint16_t frq, uint8_t volume, uint32_t duration)
Pokitto 31:f4b9b85c7b62 835 {
Pokitto 31:f4b9b85c7b62 836 if (os==1) setOSC(&osc1,1,WSQUARE,frq,volume,duration);
Pokitto 31:f4b9b85c7b62 837 else if (os==2) setOSC(&osc2,1,WTRI,frq,volume,duration);
Pokitto 31:f4b9b85c7b62 838 else if (os==3) setOSC(&osc3,1,WTRI,frq,volume,duration);
Pokitto 31:f4b9b85c7b62 839 }
Pokitto 31:f4b9b85c7b62 840
Pokitto 31:f4b9b85c7b62 841 uint8_t Sound::ampIsOn()
Pokitto 31:f4b9b85c7b62 842 {
Pokitto 31:f4b9b85c7b62 843 #ifdef POK_SIM
Pokitto 31:f4b9b85c7b62 844 return core.ampIsOn();
Pokitto 31:f4b9b85c7b62 845 #else
Pokitto 31:f4b9b85c7b62 846 #if POK_ENABLE_SOUND > 0
Pokitto 31:f4b9b85c7b62 847 return Pokitto::ampIsOn();
Pokitto 31:f4b9b85c7b62 848 #endif
Pokitto 31:f4b9b85c7b62 849 #endif // POK_SIM
Pokitto 31:f4b9b85c7b62 850 return 0;
Pokitto 31:f4b9b85c7b62 851 }
Pokitto 31:f4b9b85c7b62 852
Pokitto 31:f4b9b85c7b62 853 void Sound::ampEnable(uint8_t v) {
Pokitto 31:f4b9b85c7b62 854 #ifdef POK_SIM
Pokitto 31:f4b9b85c7b62 855 core.ampEnable(v);
Pokitto 31:f4b9b85c7b62 856 #else
Pokitto 31:f4b9b85c7b62 857 #if POK_ENABLE_SOUND > 0
Pokitto 31:f4b9b85c7b62 858 Pokitto::ampEnable(v);
Pokitto 31:f4b9b85c7b62 859 #endif
Pokitto 31:f4b9b85c7b62 860 #endif // POK_SIM
Pokitto 31:f4b9b85c7b62 861
Pokitto 31:f4b9b85c7b62 862 }
Pokitto 31:f4b9b85c7b62 863
Pokitto 31:f4b9b85c7b62 864 int Sound::playMusicStream(char* filename)
Pokitto 31:f4b9b85c7b62 865 {
Pokitto 31:f4b9b85c7b62 866 return playMusicStream(filename,0);
Pokitto 31:f4b9b85c7b62 867 }
Pokitto 31:f4b9b85c7b62 868
Pokitto 31:f4b9b85c7b62 869 int Sound::playMusicStream()
Pokitto 31:f4b9b85c7b62 870 {
Pokitto 31:f4b9b85c7b62 871 #if POK_STREAMING_MUSIC >0
Pokitto 31:f4b9b85c7b62 872 if (currentPtr) {
Pokitto 31:f4b9b85c7b62 873 pokPlayStream();
Pokitto 31:f4b9b85c7b62 874 return 1;
Pokitto 31:f4b9b85c7b62 875 } else return 0; //no stream
Pokitto 31:f4b9b85c7b62 876 #endif // POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 877 }
Pokitto 31:f4b9b85c7b62 878
Pokitto 31:f4b9b85c7b62 879 void Sound::pauseMusicStream() {
Pokitto 31:f4b9b85c7b62 880 #if POK_ENABLE_SOUND > 0
Pokitto 31:f4b9b85c7b62 881 pokPauseStream();
Pokitto 31:f4b9b85c7b62 882 #endif
Pokitto 31:f4b9b85c7b62 883 }
Pokitto 31:f4b9b85c7b62 884
Pokitto 31:f4b9b85c7b62 885 int Sound::playMusicStream(char* filename, uint8_t options)
Pokitto 31:f4b9b85c7b62 886 {
Pokitto 31:f4b9b85c7b62 887 #if POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 888 uint8_t result;
Pokitto 31:f4b9b85c7b62 889 result = pokInitSD();
Pokitto 31:f4b9b85c7b62 890 if (!isThisFileOpen(filename)) {
Pokitto 31:f4b9b85c7b62 891 fileClose(); // close any open files
Pokitto 31:f4b9b85c7b62 892 result = fileOpen(filename,FILE_MODE_OVERWRITE | FILE_MODE_BINARY);
Pokitto 31:f4b9b85c7b62 893 }
Pokitto 31:f4b9b85c7b62 894
Pokitto 31:f4b9b85c7b62 895 if (result) {
Pokitto 31:f4b9b85c7b62 896 currentPtr = 0; // mark that no stream is available
Pokitto 31:f4b9b85c7b62 897 return 0; // opening music file failed
Pokitto 31:f4b9b85c7b62 898 }
Pokitto 31:f4b9b85c7b62 899
Pokitto 31:f4b9b85c7b62 900 fileReadBytes(&buffers[0][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 901 fileReadBytes(&buffers[1][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 902 fileReadBytes(&buffers[2][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 903 fileReadBytes(&buffers[3][0],BUFFER_SIZE);
Pokitto 31:f4b9b85c7b62 904 currentBuffer = 0;
Pokitto 31:f4b9b85c7b62 905 currentPtr = buffers[currentBuffer];
Pokitto 31:f4b9b85c7b62 906 endPtr = currentPtr + BUFFER_SIZE;
Pokitto 31:f4b9b85c7b62 907
Pokitto 31:f4b9b85c7b62 908 //streaming = STR_PLAYING|options;
Pokitto 31:f4b9b85c7b62 909
Pokitto 31:f4b9b85c7b62 910 if (!options) pokPlayStream(); // activate stream
Pokitto 31:f4b9b85c7b62 911 #endif //POK_STREAMING_MUSIC
Pokitto 31:f4b9b85c7b62 912 return 1; // opening music file succeeded
Pokitto 31:f4b9b85c7b62 913 }
Pokitto 31:f4b9b85c7b62 914
Pokitto 31:f4b9b85c7b62 915