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448 lines
14 KiB
448 lines
14 KiB
#include "config.h"
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#ifdef USE_XFADE_DATA
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#include "mdaEPianoDataXfade.h"
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#else
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#include "mdaEPianoData.h"
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#endif
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#include "mdaEPiano.h"
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#include <stdio.h>
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#include <math.h>
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mdaEPiano::mdaEPiano() // mdaEPiano::mdaEPiano(audioMasterCallback audioMaster) : AudioEffectX(audioMaster, NPROGS, NPARAMS)
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{
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Fs = SAMPLE_RATE; iFs = 1.0f / Fs; //just in case...
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programs = new mdaEPianoProgram[NPROGS];
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if (programs)
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{
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//fill patches...
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int32_t i = 0;
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fillpatch(i++, "Default", 0.500f, 0.500f, 0.500f, 0.500f, 0.500f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.146f, 0.000f);
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fillpatch(i++, "Bright", 0.500f, 0.500f, 1.000f, 0.800f, 0.500f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.146f, 0.500f);
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fillpatch(i++, "Mellow", 0.500f, 0.500f, 0.000f, 0.000f, 0.500f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.246f, 0.000f);
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fillpatch(i++, "Autopan", 0.500f, 0.500f, 0.500f, 0.500f, 0.250f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.246f, 0.000f);
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fillpatch(i++, "Tremolo", 0.500f, 0.500f, 0.500f, 0.500f, 0.750f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.246f, 0.000f);
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fillpatch(i++, "(default)", 0.500f, 0.500f, 0.500f, 0.500f, 0.500f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.146f, 0.000f);
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fillpatch(i++, "(default)", 0.500f, 0.500f, 0.500f, 0.500f, 0.500f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.146f, 0.000f);
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fillpatch(i++, "(default)", 0.500f, 0.500f, 0.500f, 0.500f, 0.500f, 0.650f, 0.250f, 0.500f, 0.50f, 0.500f, 0.146f, 0.000f);
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setProgram(0);
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}
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waves = (short*)epianoDataXfade;
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//Waveform data and keymapping
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kgrp[ 0].root = 36; kgrp[ 0].high = 39; //C1
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kgrp[ 3].root = 43; kgrp[ 3].high = 45; //G1
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kgrp[ 6].root = 48; kgrp[ 6].high = 51; //C2
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kgrp[ 9].root = 55; kgrp[ 9].high = 57; //G2
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kgrp[12].root = 60; kgrp[12].high = 63; //C3
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kgrp[15].root = 67; kgrp[15].high = 69; //G3
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kgrp[18].root = 72; kgrp[18].high = 75; //C4
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kgrp[21].root = 79; kgrp[21].high = 81; //G4
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kgrp[24].root = 84; kgrp[24].high = 87; //C5
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kgrp[27].root = 91; kgrp[27].high = 93; //G5
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kgrp[30].root = 96; kgrp[30].high = 999; //C6
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kgrp[0].pos = 0; kgrp[0].end = 8476; kgrp[0].loop = 4400;
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kgrp[1].pos = 8477; kgrp[1].end = 16248; kgrp[1].loop = 4903;
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kgrp[2].pos = 16249; kgrp[2].end = 34565; kgrp[2].loop = 6398;
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kgrp[3].pos = 34566; kgrp[3].end = 41384; kgrp[3].loop = 3938;
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kgrp[4].pos = 41385; kgrp[4].end = 45760; kgrp[4].loop = 1633; //was 1636;
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kgrp[5].pos = 45761; kgrp[5].end = 65211; kgrp[5].loop = 5245;
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kgrp[6].pos = 65212; kgrp[6].end = 72897; kgrp[6].loop = 2937;
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kgrp[7].pos = 72898; kgrp[7].end = 78626; kgrp[7].loop = 2203; //was 2204;
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kgrp[8].pos = 78627; kgrp[8].end = 100387; kgrp[8].loop = 6368;
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kgrp[9].pos = 100388; kgrp[9].end = 116297; kgrp[9].loop = 10452;
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kgrp[10].pos = 116298; kgrp[10].end = 127661; kgrp[10].loop = 5217; //was 5220;
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kgrp[11].pos = 127662; kgrp[11].end = 144113; kgrp[11].loop = 3099;
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kgrp[12].pos = 144114; kgrp[12].end = 152863; kgrp[12].loop = 4284;
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kgrp[13].pos = 152864; kgrp[13].end = 173107; kgrp[13].loop = 3916;
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kgrp[14].pos = 173108; kgrp[14].end = 192734; kgrp[14].loop = 2937;
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kgrp[15].pos = 192735; kgrp[15].end = 204598; kgrp[15].loop = 4732;
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kgrp[16].pos = 204599; kgrp[16].end = 218995; kgrp[16].loop = 4733;
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kgrp[17].pos = 218996; kgrp[17].end = 233801; kgrp[17].loop = 2285;
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kgrp[18].pos = 233802; kgrp[18].end = 248011; kgrp[18].loop = 4098;
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kgrp[19].pos = 248012; kgrp[19].end = 265287; kgrp[19].loop = 4099;
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kgrp[20].pos = 265288; kgrp[20].end = 282255; kgrp[20].loop = 3609;
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kgrp[21].pos = 282256; kgrp[21].end = 293776; kgrp[21].loop = 2446;
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kgrp[22].pos = 293777; kgrp[22].end = 312566; kgrp[22].loop = 6278;
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kgrp[23].pos = 312567; kgrp[23].end = 330200; kgrp[23].loop = 2283;
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kgrp[24].pos = 330201; kgrp[24].end = 348889; kgrp[24].loop = 2689;
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kgrp[25].pos = 348890; kgrp[25].end = 365675; kgrp[25].loop = 4370;
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kgrp[26].pos = 365676; kgrp[26].end = 383661; kgrp[26].loop = 5225;
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kgrp[27].pos = 383662; kgrp[27].end = 393372; kgrp[27].loop = 2811;
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kgrp[28].pos = 383662; kgrp[28].end = 393372; kgrp[28].loop = 2811; //ghost
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kgrp[29].pos = 393373; kgrp[29].end = 406045; kgrp[29].loop = 4522;
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kgrp[30].pos = 406046; kgrp[30].end = 414486; kgrp[30].loop = 2306;
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kgrp[31].pos = 406046; kgrp[31].end = 414486; kgrp[31].loop = 2306; //ghost
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kgrp[32].pos = 414487; kgrp[32].end = 422408; kgrp[32].loop = 2169;
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//initialise...
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for (int32_t v = 0; v < NVOICES; v++)
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{
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voice[v].env = 0.0f;
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voice[v].dec = 0.99f; //all notes off
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}
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volume = 0.2f;
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muff = 160.0f;
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sustain = activevoices = 0;
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tl = tr = lfo0 = dlfo = 0.0f;
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lfo1 = 1.0f;
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guiUpdate = 0;
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update();
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// suspend();
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}
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void mdaEPiano::update() //parameter change
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{
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float * param = programs[curProgram].param;
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size = (int32_t)(12.0f * param[2] - 6.0f);
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treb = 4.0f * param[3] * param[3] - 1.0f; //treble gain
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if (param[3] > 0.5f) tfrq = 14000.0f; else tfrq = 5000.0f; //treble freq
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tfrq = 1.0f - (float)exp(-iFs * tfrq);
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rmod = lmod = param[4] + param[4] - 1.0f; //lfo depth
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if (param[4] < 0.5f) rmod = -rmod;
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dlfo = 6.283f * iFs * (float)exp(6.22f * param[5] - 2.61f); //lfo rate
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velsens = 1.0f + param[6] + param[6];
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if (param[6] < 0.25f) velsens -= 0.75f - 3.0f * param[6];
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width = 0.03f * param[7];
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poly = 1 + (int32_t)(31.9f * param[8]);
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fine = param[9] - 0.5f;
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random = 0.077f * param[10] * param[10];
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stretch = 0.0f; //0.000434f * (param[11] - 0.5f); parameter re-used for overdrive!
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overdrive = 1.8f * param[11];
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}
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void mdaEPiano::resume()
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{
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//Fs = getSampleRate();
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Fs = SAMPLE_RATE;
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iFs = 1.0f / Fs;
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dlfo = 6.283f * iFs * (float)exp(6.22f * programs[curProgram].param[5] - 2.61f); //lfo rate
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//DECLARE_VST_DEPRECATED (wantEvents) ();
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}
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mdaEPiano::~mdaEPiano () //destroy any buffers...
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{
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if (programs) delete [] programs;
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}
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void mdaEPiano::setProgram(int32_t program)
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{
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curProgram = program;
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update();
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}
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void mdaEPiano::setParameter(int32_t index, float value)
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{
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programs[curProgram].param[index] = value;
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update();
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//if(editor) editor->postUpdate(); ///For GUI
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guiUpdate = index + 0x100 + (guiUpdate & 0xFFFF00);
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}
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void mdaEPiano::fillpatch(int32_t p, char *name, float p0, float p1, float p2, float p3, float p4,
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float p5, float p6, float p7, float p8, float p9, float p10, float p11)
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{
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strcpy(programs[p].name, name);
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programs[p].param[0] = p0; programs[p].param[1] = p1;
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programs[p].param[2] = p2; programs[p].param[3] = p3;
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programs[p].param[4] = p4; programs[p].param[5] = p5;
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programs[p].param[6] = p6; programs[p].param[7] = p7;
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programs[p].param[8] = p8; programs[p].param[9] = p9;
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programs[p].param[10] = p10; programs[p].param[11] = p11;
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}
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float mdaEPiano::getParameter(int32_t index) {
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return programs[curProgram].param[index];
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}
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void mdaEPiano::process(int16_t *outputs_r, int16_t *outputs_l)
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{
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int16_t v;
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float x, l, r, od = overdrive;
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int32_t i;
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int16_t frame;
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for (frame = 0; frame < AUDIO_BLOCK_SAMPLES; frame++)
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{
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VOICE *V = voice;
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l = r = 0.0f;
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for (v = 0; v < activevoices; v++)
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{
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V->frac += V->delta; //integer-based linear interpolation
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V->pos += V->frac >> 16;
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V->frac &= 0xFFFF;
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if (V->pos > V->end)
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V->pos -= V->loop;
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i = waves[V->pos] + ((V->frac * (waves[V->pos + 1] - waves[V->pos])) >> 16);
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x = V->env * static_cast<float>(i) / 32768.0f;
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V->env = V->env * V->dec; //envelope
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if (x > 0.0f)
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{
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x -= od * x * x; //overdrive
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if (x < -V->env) x = -V->env;
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}
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l += V->outl * x;
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r += V->outr * x;
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V++;
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}
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tl += tfrq * (l - tl); //treble boost
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tr += tfrq * (r - tr);
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r += treb * (r - tr);
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l += treb * (l - tl);
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lfo0 += dlfo * lfo1; //LFO for tremolo and autopan
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lfo1 -= dlfo * lfo0;
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l += l * lmod * lfo1;
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r += r * rmod * lfo1; //worth making all these local variables?
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outputs_l[frame] += static_cast<int16_t>((l * 0.5) * 0x7fff);
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outputs_r[frame] += static_cast<int16_t>((r * 0.5) * 0x7fff);
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}
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if (fabs(tl) < 1.0e-10) tl = 0.0f; //anti-denormal
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if (fabs(tr) < 1.0e-10) tr = 0.0f;
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for (v = 0; v < activevoices; v++)
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if (voice[v].env < SILENCE)
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voice[v] = voice[--activevoices];
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}
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void mdaEPiano::noteOn(int32_t note, int32_t velocity)
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{
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float * param = programs[curProgram].param;
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float l = 99.0f;
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int32_t v, vl = 0, k, s;
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if (velocity > 0)
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{
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if (activevoices < poly) //add a note
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{
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vl = activevoices;
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activevoices++;
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voice[vl].f0 = voice[vl].f1 = 0.0f;
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}
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else //steal a note
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{
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for (v = 0; v < poly; v++) //find quietest voice
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{
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if (voice[v].env < l) {
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l = voice[v].env;
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vl = v;
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}
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}
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}
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k = (note - 60) * (note - 60);
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l = fine + random * ((float)(k % 13) - 6.5f); //random & fine tune
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if (note > 60) l += stretch * (float)k; //stretch
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s = size;
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//if(velocity > 40) s += (int32_t)(sizevel * (float)(velocity - 40)); - no velocity to hardness in ePiano
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k = 0;
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while (note > (kgrp[k].high + s)) k += 3; //find keygroup
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l += (float)(note - kgrp[k].root); //pitch
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l = 32000.0f * iFs * (float)exp(0.05776226505 * l);
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voice[vl].delta = (int32_t)(65536.0f * l);
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voice[vl].frac = 0;
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if (velocity > 48) k++; //mid velocity sample
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if (velocity > 80) k++; //high velocity sample
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voice[vl].pos = kgrp[k].pos;
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voice[vl].end = kgrp[k].end - 1;
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voice[vl].loop = kgrp[k].loop;
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voice[vl].env = (3.0f + 2.0f * velsens) * (float)pow(0.0078f * velocity, velsens); //velocity
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if (note > 60) voice[vl].env *= (float)exp(0.01f * (float)(60 - note)); //new! high notes quieter
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l = 50.0f + param[4] * param[4] * muff + muffvel * (float)(velocity - 64); //muffle
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if (l < (55.0f + 0.4f * (float)note)) l = 55.0f + 0.4f * (float)note;
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if (l > 210.0f) l = 210.0f;
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voice[vl].ff = l * l * iFs;
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voice[vl].note = note; //note->pan
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if (note < 12) note = 12;
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if (note > 108) note = 108;
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l = volume;
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voice[vl].outr = l + l * width * (float)(note - 60);
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voice[vl].outl = l + l - voice[vl].outr;
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if (note < 44) note = 44; //limit max decay length
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voice[vl].dec = (float)exp(-iFs * exp(-1.0 + 0.03 * (double)note - 2.0f * param[0]));
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}
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else //note off
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{
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for (v = 0; v < NVOICES; v++) if (voice[v].note == note) //any voices playing that note?
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{
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if (sustain == 0)
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{
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voice[v].dec = (float)exp(-iFs * exp(6.0 + 0.01 * (double)note - 5.0 * param[1]));
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}
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else voice[v].note = SUSTAIN;
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}
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}
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}
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bool mdaEPiano::processMidiMessage(uint8_t type, uint8_t data1, uint8_t data2)
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{
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float* param = programs[curProgram].param;
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switch (type)
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{
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case 0x80: //note off
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noteOn(data1 & 0x7F, 0);
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break;
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case 0x90: //note on
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noteOn(data1 & 0x7F, data2 & 0x7F);
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break;
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case 0xB0: //controller
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switch (data1)
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{
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case 0x01: //mod wheel
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modwhl = 0.0078f * (float)(data2);
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if (modwhl > 0.05f) //over-ride pan/trem depth
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{
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rmod = lmod = modwhl; //lfo depth
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if (param[4] < 0.5f) rmod = -rmod;
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}
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break;
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case 0x07: //volume
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volume = 0.00002f * (float)(data2 * data2);
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break;
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case 0x40: //sustain pedal
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case 0x42: //sustenuto pedal
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sustain = data2 & 0x40;
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if (sustain == 0)
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{
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noteOn(SUSTAIN, 0); //end all sustained notes
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}
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break;
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default: //all notes off
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if (data1 > 0x7A)
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{
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for (int32_t v = 0; v < NVOICES; v++) voice[v].dec = 0.99f;
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sustain = 0;
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muff = 160.0f;
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}
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break;
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}
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break;
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case 0xC0: //program change
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if (data1 < NPROGS) setProgram(data1);
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break;
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default: break;
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}
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return (true);
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}
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/*
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int32_t mdaEPiano::processEvents()
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{
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float * param = programs[curProgram].param;
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int32_t npos=0;
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for (int32_t i=0; i<ev->numEvents; i++)
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{
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if((ev->events[i])->type != kVstMidiType) continue;
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VstMidiEvent* event = (VstMidiEvent*)ev->events[i];
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char* midiData = event->midiData;
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switch(midiData[0] & 0xf0) //status byte (all channels)
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{
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case 0x80: //note off
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notes[npos++] = event->deltaFrames; //delta
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notes[npos++] = midiData[1] & 0x7F; //note
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notes[npos++] = 0; //vel
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break;
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case 0x90: //note on
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notes[npos++] = event->deltaFrames; //delta
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notes[npos++] = midiData[1] & 0x7F; //note
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notes[npos++] = midiData[2] & 0x7F; //vel
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break;
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case 0xB0: //controller
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switch(midiData[1])
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{
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case 0x01: //mod wheel
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modwhl = 0.0078f * (float)(midiData[2]);
|
|
if(modwhl > 0.05f) //over-ride pan/trem depth
|
|
{
|
|
rmod = lmod = modwhl; //lfo depth
|
|
if(param[4] < 0.5f) rmod = -rmod;
|
|
}
|
|
break;
|
|
|
|
|
|
case 0x07: //volume
|
|
volume = 0.00002f * (float)(midiData[2] * midiData[2]);
|
|
break;
|
|
|
|
case 0x40: //sustain pedal
|
|
case 0x42: //sustenuto pedal
|
|
sustain = midiData[2] & 0x40;
|
|
if(sustain==0)
|
|
{
|
|
notes[npos++] = event->deltaFrames;
|
|
notes[npos++] = SUSTAIN; //end all sustained notes
|
|
notes[npos++] = 0;
|
|
}
|
|
break;
|
|
|
|
default: //all notes off
|
|
if(midiData[1]>0x7A)
|
|
{
|
|
for(int32_t v=0; v<NVOICES; v++) voice[v].dec=0.99f;
|
|
sustain = 0;
|
|
muff = 160.0f;
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0xC0: //program change
|
|
if(midiData[1]<NPROGS) setProgram(midiData[1]);
|
|
break;
|
|
|
|
default: break;
|
|
}
|
|
|
|
if(npos>EVENTBUFFER) npos -= 3; //discard events if buffer full!!
|
|
event++; //?
|
|
}
|
|
notes[npos] = EVENTS_DONE;
|
|
|
|
return 1;
|
|
}
|
|
*/
|
|
|