p igmon
/
uGen4x
PCM Digital Synthesizer
envelope_work.cpp@0:ad6637c36dc7, 2016-09-02 (annotated)
- Committer:
- p_igmon
- Date:
- Fri Sep 02 13:24:16 2016 +0000
- Revision:
- 0:ad6637c36dc7
for Micro Gen4 Synthesizer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
p_igmon | 0:ad6637c36dc7 | 1 | #include "synthesizer.h" |
p_igmon | 0:ad6637c36dc7 | 2 | |
p_igmon | 0:ad6637c36dc7 | 3 | extern GENERATOR sgen[]; |
p_igmon | 0:ad6637c36dc7 | 4 | extern GENERATOR dgen[]; |
p_igmon | 0:ad6637c36dc7 | 5 | extern GENERATOR_TEMP dgen_temp[]; |
p_igmon | 0:ad6637c36dc7 | 6 | extern GENERATOR *gen ;// = &sgen[PresetVoiceNum - 1] set by Menu PresetVoice |
p_igmon | 0:ad6637c36dc7 | 7 | extern GENERATOR *pgen;// = &dgen[0]; |
p_igmon | 0:ad6637c36dc7 | 8 | extern GENERATOR_TEMP *pgen_temp;// = &dgen_temp[0]; |
p_igmon | 0:ad6637c36dc7 | 9 | extern PresetVoiceDef PresetVoice[]; |
p_igmon | 0:ad6637c36dc7 | 10 | extern STR_VOICE voice[]; |
p_igmon | 0:ad6637c36dc7 | 11 | |
p_igmon | 0:ad6637c36dc7 | 12 | extern int gen_encount; |
p_igmon | 0:ad6637c36dc7 | 13 | extern U8 PresetVoiceNum; |
p_igmon | 0:ad6637c36dc7 | 14 | extern U8 MidiChannel; |
p_igmon | 0:ad6637c36dc7 | 15 | |
p_igmon | 0:ad6637c36dc7 | 16 | extern S16 MasterVolume; |
p_igmon | 0:ad6637c36dc7 | 17 | extern volatile S16 mvoldiv; |
p_igmon | 0:ad6637c36dc7 | 18 | |
p_igmon | 0:ad6637c36dc7 | 19 | void envelope_work(void) |
p_igmon | 0:ad6637c36dc7 | 20 | { |
p_igmon | 0:ad6637c36dc7 | 21 | U8 i; |
p_igmon | 0:ad6637c36dc7 | 22 | U16 temp; |
p_igmon | 0:ad6637c36dc7 | 23 | U8 temp1,temp2; |
p_igmon | 0:ad6637c36dc7 | 24 | S16 *lfo1wave; |
p_igmon | 0:ad6637c36dc7 | 25 | GENERATOR *gena; |
p_igmon | 0:ad6637c36dc7 | 26 | GENERATOR_TEMP *gena_temp; |
p_igmon | 0:ad6637c36dc7 | 27 | STR_VOICE *voicea; |
p_igmon | 0:ad6637c36dc7 | 28 | gena = pgen;// 螳滉ス薙・縺サ縺・〒 |
p_igmon | 0:ad6637c36dc7 | 29 | gena_temp = pgen_temp;// 螳滉ス薙・縺サ縺・〒 |
p_igmon | 0:ad6637c36dc7 | 30 | voicea = &voice[0]; |
p_igmon | 0:ad6637c36dc7 | 31 | PresetVoiceDef *voice_ptr = (PresetVoiceDef *)&PresetVoice[PresetVoiceNum- 1]; |
p_igmon | 0:ad6637c36dc7 | 32 | MasterVolume += mvoldiv; |
p_igmon | 0:ad6637c36dc7 | 33 | if(MasterVolume >(127<<8)){ |
p_igmon | 0:ad6637c36dc7 | 34 | MasterVolume = 127<<8; |
p_igmon | 0:ad6637c36dc7 | 35 | mvoldiv = 0; |
p_igmon | 0:ad6637c36dc7 | 36 | }else if(MasterVolume < 0){ |
p_igmon | 0:ad6637c36dc7 | 37 | MasterVolume = 0; |
p_igmon | 0:ad6637c36dc7 | 38 | mvoldiv = 0; |
p_igmon | 0:ad6637c36dc7 | 39 | } |
p_igmon | 0:ad6637c36dc7 | 40 | |
p_igmon | 0:ad6637c36dc7 | 41 | for (i =0;i<GENMAX;i++){ |
p_igmon | 0:ad6637c36dc7 | 42 | if(gena_temp->status == GEN_IDLE){ |
p_igmon | 0:ad6637c36dc7 | 43 | // gena_temp->voltemp = 0; |
p_igmon | 0:ad6637c36dc7 | 44 | gena_temp->lfo1delaycount = gena->lfo1delaytime; |
p_igmon | 0:ad6637c36dc7 | 45 | gena_temp->lfo2delaycount = gena->lfo2delaytime; |
p_igmon | 0:ad6637c36dc7 | 46 | #ifdef DCF |
p_igmon | 0:ad6637c36dc7 | 47 | voicea->enable &= ~(1<<(i & (PRGGENMAX - 1)));// 1,2,4,8 |
p_igmon | 0:ad6637c36dc7 | 48 | #endif |
p_igmon | 0:ad6637c36dc7 | 49 | }else{ |
p_igmon | 0:ad6637c36dc7 | 50 | if(gena_temp->status == GEN_NOTEOFF){ |
p_igmon | 0:ad6637c36dc7 | 51 | /* Function Release */ |
p_igmon | 0:ad6637c36dc7 | 52 | gena_temp->voltemp = (gena_temp->voltemp>>16) * releasetime_table[gena->releasetime]; |
p_igmon | 0:ad6637c36dc7 | 53 | if(gena_temp->voltemp == 0){ |
p_igmon | 0:ad6637c36dc7 | 54 | gena_temp->zerocount++; |
p_igmon | 0:ad6637c36dc7 | 55 | }else{ |
p_igmon | 0:ad6637c36dc7 | 56 | gena_temp->zerocount = 0; |
p_igmon | 0:ad6637c36dc7 | 57 | } |
p_igmon | 0:ad6637c36dc7 | 58 | if(gena_temp->zerocount > 10){ |
p_igmon | 0:ad6637c36dc7 | 59 | gena_temp->status = GEN_IDLE; |
p_igmon | 0:ad6637c36dc7 | 60 | gena_temp->eg_status = EG_IDLE; |
p_igmon | 0:ad6637c36dc7 | 61 | #ifdef DCF |
p_igmon | 0:ad6637c36dc7 | 62 | voicea->enable &= ~(1<<(i & (PRGGENMAX - 1)));// 1,2,4,8 |
p_igmon | 0:ad6637c36dc7 | 63 | #endif |
p_igmon | 0:ad6637c36dc7 | 64 | gen_encount--; |
p_igmon | 0:ad6637c36dc7 | 65 | //ledgreen_off(); |
p_igmon | 0:ad6637c36dc7 | 66 | }else{ |
p_igmon | 0:ad6637c36dc7 | 67 | gena_temp->eg_status = EG_RELEASE; |
p_igmon | 0:ad6637c36dc7 | 68 | //ledred_off(); |
p_igmon | 0:ad6637c36dc7 | 69 | } |
p_igmon | 0:ad6637c36dc7 | 70 | |
p_igmon | 0:ad6637c36dc7 | 71 | }else{ // NOTE ON |
p_igmon | 0:ad6637c36dc7 | 72 | if(gena_temp->eg_status == EG_IDLE){ |
p_igmon | 0:ad6637c36dc7 | 73 | gena_temp->voltemp += gena_temp->voltemp1; |
p_igmon | 0:ad6637c36dc7 | 74 | //ledred_on(); |
p_igmon | 0:ad6637c36dc7 | 75 | if(gena_temp->voltemp > gena->volume <<16){ |
p_igmon | 0:ad6637c36dc7 | 76 | gena_temp->voltemp = gena->volume <<16; |
p_igmon | 0:ad6637c36dc7 | 77 | gena_temp->voltemp1 = ((gena->volume<<16) /100 * (100 - gena->sustainlevel))/(gena->decaytime); |
p_igmon | 0:ad6637c36dc7 | 78 | gena_temp->eg_status = EG_DECAY; |
p_igmon | 0:ad6637c36dc7 | 79 | }else{ |
p_igmon | 0:ad6637c36dc7 | 80 | gena_temp->eg_status = EG_ATTACK; |
p_igmon | 0:ad6637c36dc7 | 81 | } |
p_igmon | 0:ad6637c36dc7 | 82 | }else if(gena_temp->eg_status == EG_ATTACK){ |
p_igmon | 0:ad6637c36dc7 | 83 | gena_temp->voltemp += gena_temp->voltemp1; |
p_igmon | 0:ad6637c36dc7 | 84 | //ledred_on(); |
p_igmon | 0:ad6637c36dc7 | 85 | if(gena_temp->voltemp > gena->volume <<16){ |
p_igmon | 0:ad6637c36dc7 | 86 | gena_temp->voltemp = gena->volume <<16; |
p_igmon | 0:ad6637c36dc7 | 87 | gena_temp->voltemp1 = ((gena->volume<<16) /100 * (100 - gena->sustainlevel))/(gena->decaytime); |
p_igmon | 0:ad6637c36dc7 | 88 | gena_temp->eg_status = EG_DECAY; |
p_igmon | 0:ad6637c36dc7 | 89 | } |
p_igmon | 0:ad6637c36dc7 | 90 | }else if(gena_temp->eg_status == EG_DECAY){ |
p_igmon | 0:ad6637c36dc7 | 91 | gena_temp->voltemp -= gena_temp->voltemp1; |
p_igmon | 0:ad6637c36dc7 | 92 | if(gena_temp->voltemp < gena_temp->voltemp2){ |
p_igmon | 0:ad6637c36dc7 | 93 | gena_temp->voltemp = gena_temp->voltemp2; |
p_igmon | 0:ad6637c36dc7 | 94 | gena_temp->eg_status = EG_SUSTAIN; |
p_igmon | 0:ad6637c36dc7 | 95 | |
p_igmon | 0:ad6637c36dc7 | 96 | //ledgreen_on(); |
p_igmon | 0:ad6637c36dc7 | 97 | } |
p_igmon | 0:ad6637c36dc7 | 98 | |
p_igmon | 0:ad6637c36dc7 | 99 | } |
p_igmon | 0:ad6637c36dc7 | 100 | |
p_igmon | 0:ad6637c36dc7 | 101 | } |
p_igmon | 0:ad6637c36dc7 | 102 | /* Note On/Off蜈ア騾壹・蜃ヲ逅・*/ |
p_igmon | 0:ad6637c36dc7 | 103 | if (gena_temp->dpf != 0){ // 110812 |
p_igmon | 0:ad6637c36dc7 | 104 | gena_temp->df += (S32)gena_temp->dpf;// |
p_igmon | 0:ad6637c36dc7 | 105 | } |
p_igmon | 0:ad6637c36dc7 | 106 | |
p_igmon | 0:ad6637c36dc7 | 107 | /* PitchBend 120617 */ |
p_igmon | 0:ad6637c36dc7 | 108 | // gena->bendvalue = ((((ADC.ADDRA.WORD>>6) - adc0bias) * gena->benddepth) >>10);// ADDR 縺ョ繝薙ャ繝・5・・縺後ョ繝シ繧ソ |
p_igmon | 0:ad6637c36dc7 | 109 | // gena->bendvalue = ((gena->df>>26) * gena->bendvalue )>>2; |
p_igmon | 0:ad6637c36dc7 | 110 | |
p_igmon | 0:ad6637c36dc7 | 111 | #ifdef BEND |
p_igmon | 0:ad6637c36dc7 | 112 | gena_temp->xx = (((U32)gena_temp->df>>16) + (S16)gena->detune + gena->lfo1value + gena->bendvalue); |
p_igmon | 0:ad6637c36dc7 | 113 | #else |
p_igmon | 0:ad6637c36dc7 | 114 | gena_temp->xx = (((U32)gena_temp->df>>16) + (S32)gena->detune + gena_temp->lfo1value); |
p_igmon | 0:ad6637c36dc7 | 115 | #endif |
p_igmon | 0:ad6637c36dc7 | 116 | |
p_igmon | 0:ad6637c36dc7 | 117 | #if 1 |
p_igmon | 0:ad6637c36dc7 | 118 | /* Function LFO1 */ |
p_igmon | 0:ad6637c36dc7 | 119 | if(gena_temp->lfo1delaycount > 0){ |
p_igmon | 0:ad6637c36dc7 | 120 | gena_temp->lfo1delaycount--; |
p_igmon | 0:ad6637c36dc7 | 121 | }else{ |
p_igmon | 0:ad6637c36dc7 | 122 | /* lof1speed 3e.5f */ |
p_igmon | 0:ad6637c36dc7 | 123 | gena_temp->lfo1count += (U8)gena->lfo1speed ; |
p_igmon | 0:ad6637c36dc7 | 124 | if (gena_temp->lfo1count >= (256<<5)) gena_temp->lfo1count -=(256<<5); |
p_igmon | 0:ad6637c36dc7 | 125 | // gena_temp->lfo1value = ((S16)sin_table[(gena_temp->lfo1count>>5)] * (U16)gena->lfo1depth) >>20; |
p_igmon | 0:ad6637c36dc7 | 126 | switch(gena->lfo1type){ |
p_igmon | 0:ad6637c36dc7 | 127 | case 0: |
p_igmon | 0:ad6637c36dc7 | 128 | lfo1wave = sin_table; |
p_igmon | 0:ad6637c36dc7 | 129 | break; |
p_igmon | 0:ad6637c36dc7 | 130 | case 1: |
p_igmon | 0:ad6637c36dc7 | 131 | lfo1wave = saw1_table; |
p_igmon | 0:ad6637c36dc7 | 132 | break; |
p_igmon | 0:ad6637c36dc7 | 133 | case 2: |
p_igmon | 0:ad6637c36dc7 | 134 | lfo1wave = saw2_table; |
p_igmon | 0:ad6637c36dc7 | 135 | break; |
p_igmon | 0:ad6637c36dc7 | 136 | case 3: |
p_igmon | 0:ad6637c36dc7 | 137 | lfo1wave = tri_table; |
p_igmon | 0:ad6637c36dc7 | 138 | break; |
p_igmon | 0:ad6637c36dc7 | 139 | case 4: |
p_igmon | 0:ad6637c36dc7 | 140 | lfo1wave = square_table; |
p_igmon | 0:ad6637c36dc7 | 141 | break; |
p_igmon | 0:ad6637c36dc7 | 142 | } |
p_igmon | 0:ad6637c36dc7 | 143 | |
p_igmon | 0:ad6637c36dc7 | 144 | // gena_temp->lfo1value = ((S16)lfo1wave[(gena_temp->lfo1count>>5)] * (U16)gena->lfo1depth) >>20; |
p_igmon | 0:ad6637c36dc7 | 145 | // gena_temp->lfo1value = ((gena_temp->df>>26) * gena_temp->lfo1value)<<4;// 140614 |
p_igmon | 0:ad6637c36dc7 | 146 | gena_temp->lfo1value = ((S16)lfo1wave[(gena_temp->lfo1count>>5)] * (U16)gena->lfo1depth) >>10;//140617 |
p_igmon | 0:ad6637c36dc7 | 147 | gena_temp->lfo1value = ((gena_temp->df>>16) * (gena_temp->lfo1value>>4))>>12;// 140617 |
p_igmon | 0:ad6637c36dc7 | 148 | } |
p_igmon | 0:ad6637c36dc7 | 149 | #endif |
p_igmon | 0:ad6637c36dc7 | 150 | gena_temp->voltempL = (((U32)gena_temp->voltemp>>7) * (U8)gena_temp->velocity) >>16; |
p_igmon | 0:ad6637c36dc7 | 151 | #if 1 |
p_igmon | 0:ad6637c36dc7 | 152 | /* Function LFO2 */ |
p_igmon | 0:ad6637c36dc7 | 153 | if(gena_temp->lfo2delaycount > 0){ |
p_igmon | 0:ad6637c36dc7 | 154 | gena_temp->lfo2delaycount--; |
p_igmon | 0:ad6637c36dc7 | 155 | }else{ |
p_igmon | 0:ad6637c36dc7 | 156 | /* lof2speed 3e.5f */ |
p_igmon | 0:ad6637c36dc7 | 157 | gena_temp->lfo2count += (U8)gena->lfo2speed ; |
p_igmon | 0:ad6637c36dc7 | 158 | if (gena_temp->lfo2count >= (256<<5)) gena_temp->lfo2count -=(256<<5); |
p_igmon | 0:ad6637c36dc7 | 159 | // temp = (U16)(( (U16)sin_table2[((U16)gena_temp->lfo2count>>5)] * (U16)gena->lfo2depth) >>16); |
p_igmon | 0:ad6637c36dc7 | 160 | // gena_temp->voltempL += (gena_temp->voltempL * temp) >>15; |
p_igmon | 0:ad6637c36dc7 | 161 | temp = (U16)(( (U16)sin_table2[((U16)gena_temp->lfo2count>>5)] * (U16)gena->lfo2depth) >>10);// 140618 |
p_igmon | 0:ad6637c36dc7 | 162 | gena_temp->voltempL += (gena_temp->voltempL * temp) >>11;// 140618 |
p_igmon | 0:ad6637c36dc7 | 163 | |
p_igmon | 0:ad6637c36dc7 | 164 | } |
p_igmon | 0:ad6637c36dc7 | 165 | #endif |
p_igmon | 0:ad6637c36dc7 | 166 | /* GEN_NOTEONOFF END */ |
p_igmon | 0:ad6637c36dc7 | 167 | } |
p_igmon | 0:ad6637c36dc7 | 168 | #ifdef DCF |
p_igmon | 0:ad6637c36dc7 | 169 | /* Voice Process */ |
p_igmon | 0:ad6637c36dc7 | 170 | if ((i & (PRGGENMAX - 1)) == 0){ |
p_igmon | 0:ad6637c36dc7 | 171 | |
p_igmon | 0:ad6637c36dc7 | 172 | temp1 = voice_ptr->dcf_freq +((30 - voice_ptr->dcf_freq)*((S16)gena_temp->voltempL * (voice_ptr->dcf_freqsence))>>16); |
p_igmon | 0:ad6637c36dc7 | 173 | if (temp1 > 30) temp1 = 30; |
p_igmon | 0:ad6637c36dc7 | 174 | temp2 = voice_ptr->dcf_q +((10 - voice_ptr->dcf_q)*((S16)gena_temp->voltempL * (voice_ptr->dcf_qsence))>>16); |
p_igmon | 0:ad6637c36dc7 | 175 | if (temp2 > 10) temp2 = 10; |
p_igmon | 0:ad6637c36dc7 | 176 | |
p_igmon | 0:ad6637c36dc7 | 177 | voicea->dcf_param = (S32 *)&dcf_table[temp1 * 11 + temp2][0]; |
p_igmon | 0:ad6637c36dc7 | 178 | |
p_igmon | 0:ad6637c36dc7 | 179 | } |
p_igmon | 0:ad6637c36dc7 | 180 | #endif |
p_igmon | 0:ad6637c36dc7 | 181 | gena++; |
p_igmon | 0:ad6637c36dc7 | 182 | gena_temp++; |
p_igmon | 0:ad6637c36dc7 | 183 | #ifdef DCF |
p_igmon | 0:ad6637c36dc7 | 184 | if ((i & (PRGGENMAX - 1))== (PRGGENMAX - 1)) voicea++; |
p_igmon | 0:ad6637c36dc7 | 185 | #endif |
p_igmon | 0:ad6637c36dc7 | 186 | } |
p_igmon | 0:ad6637c36dc7 | 187 | } |
p_igmon | 0:ad6637c36dc7 | 188 |