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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * drumgizmo_vst.cc
+ *
+ * Tue Sep 20 08:22:48 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "drumgizmo_vst.h"
+
+#include "constants.h"
+
+#define NUM_PROGRAMS 0
+#define NUM_PARAMS 0
+
+AudioEffect* createEffectInstance(audioMasterCallback audioMaster)
+{
+ return new DrumGizmoVst(audioMaster);
+}
+
+DrumGizmoVst::DrumGizmoVst(audioMasterCallback audioMaster)
+ : AudioEffectX(audioMaster, NUM_PROGRAMS, NUM_PARAMS)
+{
+ pos = 0;
+ buffer = NULL;
+ buffer_size = 0;
+
+ output = new OutputVST();
+ input = new InputVST();
+ drumgizmo = new DrumGizmo(output, input);
+
+ // initialize programs
+ //programs = new DrumGizmoVstProgram[kNumPrograms];
+ //for(VstInt32 i = 0; i < 16; i++) channelPrograms[i] = i;
+
+ //if(programs) setProgram(0);
+
+ if(audioMaster) {
+ setNumInputs(0); // no audio inputs
+ setNumOutputs(NUM_OUTPUTS);
+ canProcessReplacing();
+ isSynth();
+ char id[] = "DGv1"; // Four bytes typecasted into an unsigned integer
+ setUniqueID((unsigned int)*id);
+ }
+
+ initProcess();
+ suspend();
+}
+
+DrumGizmoVst::~DrumGizmoVst()
+{
+ delete drumgizmo;
+ delete input;
+ delete output;
+}
+
+void DrumGizmoVst::setProgram(VstInt32 program) {}
+void DrumGizmoVst::setProgramName(char* name) {}
+void DrumGizmoVst::getProgramName(char* name) { name[0] = '\0'; }
+
+void DrumGizmoVst::getParameterLabel(VstInt32 index, char* label)
+{
+ label[0] = '\0';
+ /*
+ switch(index)
+ {
+ case kWaveform1:
+ case kWaveform2:
+ vst_strncpy(label, "Shape", kVstMaxParamStrLen);
+ break;
+
+ case kFreq1:
+ case kFreq2:
+ vst_strncpy(label, "Hz", kVstMaxParamStrLen);
+ break;
+
+ case kVolume1:
+ case kVolume2:
+ case kVolume:
+ vst_strncpy(label, "dB", kVstMaxParamStrLen);
+ break;
+ }
+ */
+}
+
+void DrumGizmoVst::getParameterDisplay(VstInt32 index, char* text)
+{
+ text[0] = 0;
+ /*
+ switch(index)
+ {
+ case kWaveform1:
+ if(fWaveform1 < .5)
+ vst_strncpy(text, "Sawtooth", kVstMaxParamStrLen);
+ else
+ vst_strncpy(text, "Pulse", kVstMaxParamStrLen);
+ break;
+
+ case kFreq1: float2string(fFreq1, text, kVstMaxParamStrLen); break;
+ case kVolume1: dB2string(fVolume1, text, kVstMaxParamStrLen); break;
+
+ case kWaveform2:
+ if(fWaveform2 < .5)
+ vst_strncpy(text, "Sawtooth", kVstMaxParamStrLen);
+ else
+ vst_strncpy(text, "Pulse", kVstMaxParamStrLen);
+ break;
+
+ case kFreq2: float2string(fFreq2, text, kVstMaxParamStrLen); break;
+ case kVolume2: dB2string(fVolume2, text, kVstMaxParamStrLen); break;
+ case kVolume: dB2string(fVolume, text, kVstMaxParamStrLen); break;
+ }
+ */
+}
+
+void DrumGizmoVst::getParameterName(VstInt32 index, char* label)
+{
+ /*
+ switch(index)
+ {
+ case kWaveform1: vst_strncpy(label, "Wave 1", kVstMaxParamStrLen); break;
+ case kFreq1: vst_strncpy(label, "Freq 1", kVstMaxParamStrLen); break;
+ case kVolume1: vst_strncpy(label, "Levl 1", kVstMaxParamStrLen); break;
+ case kWaveform2: vst_strncpy(label, "Wave 2", kVstMaxParamStrLen); break;
+ case kFreq2: vst_strncpy(label, "Freq 2", kVstMaxParamStrLen); break;
+ case kVolume2: vst_strncpy(label, "Levl 2", kVstMaxParamStrLen); break;
+ case kVolume: vst_strncpy(label, "Volume", kVstMaxParamStrLen); break;
+ }
+ */
+}
+
+void DrumGizmoVst::setParameter(VstInt32 index, float value)
+{
+ /*
+ DrumGizmoVstProgram *ap = &programs[curProgram];
+ switch(index)
+ {
+ case kWaveform1: fWaveform1 = ap->fWaveform1 = value; break;
+ case kFreq1: fFreq1 = ap->fFreq1 = value; break;
+ case kVolume1: fVolume1 = ap->fVolume1 = value; break;
+ case kWaveform2: fWaveform2 = ap->fWaveform2 = value; break;
+ case kFreq2: fFreq2 = ap->fFreq2 = value; break;
+ case kVolume2: fVolume2 = ap->fVolume2 = value; break;
+ case kVolume: fVolume = ap->fVolume = value; break;
+ }
+ */
+}
+
+float DrumGizmoVst::getParameter(VstInt32 index)
+{
+ float value = 0;
+ /*
+ switch(index)
+ {
+ case kWaveform1: value = fWaveform1; break;
+ case kFreq1: value = fFreq1; break;
+ case kVolume1: value = fVolume1; break;
+ case kWaveform2: value = fWaveform2; break;
+ case kFreq2: value = fFreq2; break;
+ case kVolume2: value = fVolume2; break;
+ case kVolume: value = fVolume; break;
+ }
+ */
+ return value;
+}
+
+bool DrumGizmoVst::getOutputProperties(VstInt32 index,
+ VstPinProperties* properties)
+{
+ if(index < NUM_OUTPUTS)
+ {
+ vst_strncpy(properties->label, "Channel ", 63);
+ char temp[11] = {0};
+ int2string(index + 1, temp, 10);
+ vst_strncat(properties->label, temp, 63);
+
+ properties->flags = kVstPinIsActive;
+
+ return true;
+ }
+ return false;
+}
+
+bool DrumGizmoVst::getProgramNameIndexed(VstInt32 category, VstInt32 index,
+ char* text)
+{
+ return false;
+}
+
+bool DrumGizmoVst::getEffectName(char* name)
+{
+ vst_strncpy(name, "DrumGizmo", kVstMaxEffectNameLen);
+ return true;
+}
+
+bool DrumGizmoVst::getVendorString(char* text)
+{
+ vst_strncpy(text, "Aasimon.org", kVstMaxVendorStrLen);
+ return true;
+}
+
+bool DrumGizmoVst::getProductString(char* text)
+{
+ vst_strncpy(text, "Vst Synth", kVstMaxProductStrLen);
+ return true;
+}
+
+VstInt32 DrumGizmoVst::getVendorVersion()
+{
+ return 1000;
+}
+
+VstInt32 DrumGizmoVst::canDo(char* text)
+{
+ if(!strcmp(text, "receiveVstEvents")) return 1;
+ if(!strcmp(text, "receiveVstMidiEvent")) return 1;
+ if(!strcmp(text, "midiProgramNames")) return 1;
+ return -1; // explicitly can't do; 0 => don't know
+}
+
+VstInt32 DrumGizmoVst::getNumMidiInputChannels()
+{
+ return 1; // we are monophonic
+}
+
+VstInt32 DrumGizmoVst::getNumMidiOutputChannels()
+{
+ return 0; // no MIDI output back to Host app
+}
+
+VstInt32 DrumGizmoVst::getMidiProgramName(VstInt32 channel,
+ MidiProgramName* mpn)
+{
+ VstInt32 prg = mpn->thisProgramIndex;
+ if(prg < 0 || prg >= 128)
+ return 0;
+ fillProgram(channel, prg, mpn);
+ if(channel == 9)
+ return 1;
+ return 128L;
+}
+
+VstInt32 DrumGizmoVst::getCurrentMidiProgram(VstInt32 channel,
+ MidiProgramName* mpn)
+{
+ if(channel < 0 || channel >= 16 || !mpn) return -1;
+ VstInt32 prg = 0;
+ mpn->thisProgramIndex = prg;
+ fillProgram(channel, prg, mpn);
+ return prg;
+}
+
+void DrumGizmoVst::fillProgram(VstInt32 channel, VstInt32 prg,
+ MidiProgramName* mpn)
+{
+ mpn->midiBankMsb = mpn->midiBankLsb = -1;
+ mpn->reserved = 0;
+ mpn->flags = 0;
+
+ vst_strncpy(mpn->name, "Standard", 63);
+ mpn->midiProgram = 0;
+ mpn->parentCategoryIndex = 0;
+}
+
+VstInt32 DrumGizmoVst::getMidiProgramCategory(VstInt32 channel,
+ MidiProgramCategory* cat)
+{
+ cat->parentCategoryIndex = -1; // -1:no parent category
+ cat->flags = 0; // reserved, none defined yet, zero.
+ VstInt32 category = cat->thisCategoryIndex;
+ vst_strncpy(cat->name, "Drums", 63);
+ return 1;
+}
+
+bool DrumGizmoVst::hasMidiProgramsChanged(VstInt32 channel)
+{
+ return false; // updateDisplay()
+}
+
+bool DrumGizmoVst::getMidiKeyName(VstInt32 channel, MidiKeyName* key)
+// struct will be filled with information for 'thisProgramIndex' and
+// 'thisKeyNumber'
+// if keyName is "" the standard name of the key will be displayed.
+// if false is returned, no MidiKeyNames defined for 'thisProgramIndex'.
+{
+ // key->thisProgramIndex; // >= 0. fill struct for this program index.
+ // key->thisKeyNumber; // 0 - 127. fill struct for this key number.
+ key->keyName[0] = 0;
+ key->reserved = 0; // zero
+ key->flags = 0; // reserved, none defined yet, zero.
+ return false;
+}
+
+void DrumGizmoVst::setSampleRate(float sampleRate)
+{
+ AudioEffectX::setSampleRate(sampleRate);
+}
+
+void DrumGizmoVst::setBlockSize(VstInt32 blockSize)
+{
+ AudioEffectX::setBlockSize(blockSize);
+}
+
+void DrumGizmoVst::initProcess()
+{
+ drumgizmo->loadkit(getenv("DRUMGIZMO_DRUMKIT"));
+ drumgizmo->init(true);
+}
+
+void DrumGizmoVst::processReplacing(float** inputs, float** outputs,
+ VstInt32 sampleFrames)
+{
+ output->setOutputs(outputs);
+
+ if(buffer_size != sampleFrames) {
+ if(buffer) free(buffer);
+ buffer_size = sampleFrames;
+ buffer = (sample_t*)malloc(sizeof(sample_t) * buffer_size);
+ }
+
+ drumgizmo->run(pos, buffer, buffer_size);
+
+ pos += sampleFrames;
+}
+
+VstInt32 DrumGizmoVst::processEvents(VstEvents* ev)
+{
+ input->processEvents(ev);
+ return 1;
+}