PokittoLib

Diff: POKITTO_LIBS/Synth/Synth_mixfuncs.cpp

Revision:

30:796f9611d2ac

Parent:

29:9467921dec10

Child:

31:f4b9b85c7b62

--- a/POKITTO_LIBS/Synth/Synth_mixfuncs.cpp	Mon Jan 29 12:29:45 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,170 +0,0 @@
-/**************************************************************************/
-/*!
-    @file     Synth_mixfuncs.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.
-*/
-/**************************************************************************/
-
-#include "PokittoGlobs.h"
-#include "Synth.h"
-
-/** MIXING FUNCTIONS **/
-
-char voltick=0; // i need to make volume changes even slower
-uint16_t arptick=0; // i need to make volume changes even slower
-int8_t bendtick = 0; // ditto for bend.
-
-
-void mix1(){
-    // Track 1
-    if (osc1.on) {
-    Farr[osc1.wave](&osc1);
-    #if PROJ_ARDUBOY > 0
-    if (osc1.duration) {
-        /**this is special for osc1 and is only used to emulate arduino Tone(); */
-        osc1.duration--;
-    } else osc1.on = 0;
-    #endif
-
-    #ifdef POK_SIM
-    soundbyte = (((osc1.output>>8) * (osc1.adsrvol >>8 )) >> 8) >> osc1.echodiv; // To output, shift back to 8-bit
-    if (osc1.overdrive) soundbyte *= OVERDRIVE;
-    if (osc1.kick ) soundbyte >>= 2;
-    osc1.output = soundbyte;
-    #else
-    //OCR2B = osc1.output>>8;
-    #if POK_ENABLE_SOUND > 0
-    soundbyte = (((osc1.output>>8) * (osc1.adsrvol >>8 )) >> 8) >> osc1.echodiv; // To output, shift back to 8-bit
-    if (osc1.overdrive) soundbyte *= OVERDRIVE;
-    if (osc1.kick ) soundbyte >>= 2;
-    osc1.output = soundbyte;
-    #endif
-    #endif
-    }
-}
-
-void mix2(){
-    // Track 2
-    if (osc2.on) {
-    Farr[osc2.wave](&osc2);
-    #ifdef POK_SIM
-    soundbyte = (((osc2.output>>8) * (osc2.adsrvol >>8 )) >> 8) >> osc2.echodiv;
-    if (osc2.overdrive) soundbyte *= OVERDRIVE;
-    if (osc2.kick ) soundbyte >>= 2;
-    osc2.output = soundbyte;
-    #else
-    //OCR2B = osc2.output>>8;
-    #if POK_ENABLE_SOUND > 0
-    soundbyte = (((osc2.output>>8) * (osc2.adsrvol >>8 )) >> 8) >> osc2.echodiv;
-    if (osc2.overdrive) soundbyte *= OVERDRIVE;
-    if (osc2.kick ) soundbyte >>= 2;
-    osc2.output = soundbyte;
-    #endif
-    #endif
-    }
-}
-
-void mix3(){
-    // Track 3
-    if (osc3.on) {
-    Farr[osc3.wave](&osc3);
-    #ifdef POK_SIM
-    soundbyte = (((osc3.output>>8) * (osc3.adsrvol >>8 )) >> 8) >> osc3.echodiv;
-    if (osc3.overdrive) soundbyte *= OVERDRIVE;
-    if (osc3.kick ) soundbyte >>= 2;
-    osc3.output = soundbyte;
-    #else
-    //OCR2B = osc3.output>>8;
-    #if POK_ENABLE_SOUND > 0
-    soundbyte = (((osc3.output>>8) * (osc3.adsrvol >>8 )) >> 8) >> osc3.echodiv;
-    if (osc3.overdrive) soundbyte *= OVERDRIVE;
-    if (osc3.kick ) soundbyte >>= 2;
-    osc3.output = soundbyte;
-    #endif
-    #endif
-    }
-}
-
-void updateEnvelopes(){
-    //calculate volume envelopes, I do this to save cpu power
-    if (arptick) --arptick;
-    else {
-            if (osc1.arpmode && osc1.on) {
-                osc1.cinc = cincs[osc1.tonic+arptable[osc1.arpmode][osc1.arpstep]];
-                osc1.arpstep++;
-                if (osc1.arpstep==ARPSTEPMAX) osc1.arpstep = 0;
-                arptick = ARPTICK << (3-osc1.arpspeed);
-            }
-            if (osc2.arpmode && osc2.on) {
-                osc2.cinc = cincs[osc2.tonic+arptable[osc2.arpmode][osc2.arpstep]];
-                osc2.arpstep++;
-                if (osc2.arpstep==ARPSTEPMAX) osc2.arpstep = 0;
-                arptick = ARPTICK << (3-osc2.arpspeed);
-            }
-            if (osc3.arpmode && osc3.on) {
-                osc3.cinc = cincs[osc3.tonic+arptable[osc3.arpmode][osc3.arpstep]];
-                osc3.arpstep++;
-                if (osc3.arpstep==ARPSTEPMAX) osc3.arpstep = 0;
-                arptick = ARPTICK << (3-osc3.arpspeed);
-            }
-
-    }
-
-    if (voltick) --voltick;
-    else {
-            bendtick = !bendtick;
-            if (osc1.on) Earr[osc1.adsrphase](&osc1);
-            if (bendtick) osc1.pitchbend += osc1.bendrate; //slow bend to every second beat
-            if (osc1.bendrate > 0 && osc1.pitchbend > osc1.maxbend) {
-                    osc1.pitchbend = osc1.maxbend;
-                    osc1.bendrate = 0; // STOP BENDING !
-            }
-            else if (osc1.bendrate < 0 && osc1.pitchbend < osc1.maxbend) {
-                    osc1.pitchbend = osc1.maxbend;
-                    osc1.bendrate = 0; // STOP BENDING !
-            }
-
-            if (osc2.on) Earr[osc2.adsrphase](&osc2);
-            if (bendtick) osc2.pitchbend += osc2.bendrate;
-            if (osc2.bendrate > 0 && osc2.pitchbend > osc2.maxbend) osc2.pitchbend = osc2.maxbend;
-            else if (osc2.bendrate < 0 && osc2.pitchbend < osc2.maxbend) osc2.pitchbend = osc2.maxbend;
-
-            if (osc3.on) Earr[osc3.adsrphase](&osc3);
-            if (bendtick) osc3.pitchbend += osc3.bendrate;
-            if (osc3.bendrate > 0 && osc3.pitchbend > osc3.maxbend) osc3.pitchbend = osc3.maxbend;
-            else if (osc3.bendrate < 0 && osc3.pitchbend < osc3.maxbend) osc3.pitchbend = osc3.maxbend;
-
-            voltick = VOLTICK;
-    }
-    tick = 4;
-}
-