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//=========================================================
// MusE
// Linux Music Editor
// $Id: ticksynth.cpp,v 1.8.2.7 2009/12/20 05:00:35 terminator356 Exp $
// (C) Copyright 2004 Werner Schweer (ws@seh.de)
//
// This program 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; version 2 of
// the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=========================================================
#include "audio.h"
#include "ticksynth.h"
#include "default_click.h"
#include "klick1.h"
#include "klick2.h"
#include "klick3.h"
#include "klick4.h"
#include "midi.h"
#include "popupmenu.h"
// If sysex support is ever added, make sure this number is unique among all the MESS synths.
//#define METRONOME_UNIQUE_ID 7
//#define METRONOME_DEBUG
namespace MusECore {
MetronomeSynthI* metronome = 0;
class MetronomeSynth;
static MetronomeSynth* metronomeSynth = 0;
//---------------------------------------------------------
// MetronomeSynth
//---------------------------------------------------------
class MetronomeSynth : public Synth {
public:
MetronomeSynth(const QFileInfo& fi) : Synth(fi, QString("Metronome"), QString("Metronome"), QString(), QString()) {}
virtual ~MetronomeSynth() {}
virtual Type synthType() const { return METRO_SYNTH; }
virtual void incInstances(int) {}
virtual void* instantiate();
virtual SynthIF* createSIF(SynthI*);
};
//---------------------------------------------------------
// instantiate
//---------------------------------------------------------
void* MetronomeSynth::instantiate()
{
return 0;
}
//---------------------------------------------------------
// MetronomeSynthIF
//---------------------------------------------------------
class MetronomeSynthIF : public SynthIF
{
const float* data;
int pos;
int len;
float volume;
void process(float** buffer, int offset, int n);
public:
MetronomeSynthIF(SynthI* s) : SynthIF(s) {
data = 0;
}
virtual bool initGui() { return true; };
virtual void guiHeartBeat() { }
virtual bool guiVisible() const { return false; }
virtual void showGui(bool) {}
virtual bool hasGui() const { return false; }
virtual bool nativeGuiVisible() const { return false; }
virtual void showNativeGui(bool) { };
virtual bool hasNativeGui() const { return false; }
virtual void getGeometry(int*x, int*y, int*w, int*h) const { *x=0;*y=0;*w=0;*h=0; }
virtual void setGeometry(int, int, int, int) {}
virtual void getNativeGeometry(int*x, int*y, int*w, int*h) const { *x=0;*y=0;*w=0;*h=0; }
virtual void setNativeGeometry(int, int, int, int) {}
virtual void preProcessAlways() { };
virtual iMPEvent getData(MidiPort*, MPEventList*, iMPEvent, unsigned pos, int ports, unsigned n, float** buffer);
virtual bool putEvent(const MidiPlayEvent& ev);
virtual MidiPlayEvent receiveEvent() { return MidiPlayEvent(); }
virtual int eventsPending() const { return 0; }
virtual int channels() const { return 1; }
virtual int totalOutChannels() const { return 1; }
virtual int totalInChannels() const { return 0; }
virtual void deactivate3() {}
virtual QString getPatchName(int, int, bool) const { return ""; }
virtual void populatePatchPopup(MusEGui::PopupMenu*, int, bool) {};
virtual void write(int, Xml&) const {}
virtual float getParameter(unsigned long) const { return 0.0; }
virtual void setParameter(unsigned long, float) {}
virtual int getControllerInfo(int, const char**, int*, int*, int*, int*) { return 0; }
//-------------------------
// Methods for PluginIBase:
//-------------------------
virtual bool addScheduledControlEvent(unsigned long /*i*/, float /*val*/, unsigned /*frame*/) { return true; } // returns true if event cannot be delivered
};
//---------------------------------------------------------
// getData
//---------------------------------------------------------
iMPEvent MetronomeSynthIF::getData(MidiPort*, MPEventList* el, iMPEvent i, unsigned pos, int/*ports*/, unsigned n, float** buffer)
{
// Added by Tim. p3.3.18
#ifdef METRONOME_DEBUG
printf("MusE: MetronomeSynthIF::getData\n");
#endif
//set type to unsigned , due to compiler warning: comparison signed/unsigned
unsigned int curPos = pos; //prevent compiler warning: comparison signed/unsigned
unsigned int endPos = pos + n; //prevent compiler warning: comparison signed/unsigned
unsigned int off = pos; //prevent compiler warning: comparison signed/unsigned
int frameOffset = MusEGlobal::audio->getFrameOffset();
for (; i != el->end(); ++i) {
unsigned int frame = i->time() - frameOffset; //prevent compiler warning: comparison signed /unsigned
if (frame >= endPos)
break;
if (frame > curPos) {
if (frame < pos)
printf("should not happen: missed event %d\n", pos -frame);
else
process(buffer, curPos-pos, frame - curPos);
curPos = frame;
}
putEvent(*i);
}
if (endPos - curPos)
process(buffer, curPos - off, endPos - curPos);
return el->end();
}
//---------------------------------------------------------
// putEvent
//---------------------------------------------------------
bool MetronomeSynthIF::putEvent(const MidiPlayEvent& ev)
{
if (ev.dataA() == MusECore::measureSound) {
if (MusEGlobal::clickSamples == MusEGlobal::origSamples) {
data = defaultClickEmphasis;
len = defaultClickEmphasisLength;
}
else {
data = defaultKlick3;
len = defaultKlick3Length;
}
volume = MusEGlobal::measClickVolume;
}
else if (ev.dataA() == MusECore::beatSound) {
if (MusEGlobal::clickSamples == MusEGlobal::origSamples) {
data = defaultClick;
len = defaultClickLength;
} else {
data = defaultKlick1;
len = defaultKlick1Length;
}
volume = MusEGlobal::beatClickVolume;
}
else if (ev.dataA() == MusECore::accent1Sound) {
data = defaultKlick4;
len = defaultKlick4Length;
volume = MusEGlobal::accent1ClickVolume;
if (MusEGlobal::clickSamples == MusEGlobal::origSamples) {
volume=0.0;
}
}
else if (ev.dataA() == MusECore::accent2Sound) {
data = defaultKlick2;
len = defaultKlick2Length;
volume = MusEGlobal::accent2ClickVolume;
if (MusEGlobal::clickSamples == MusEGlobal::origSamples) {
volume=0.0;
}
}
pos = 0;
return false;
}
//---------------------------------------------------------
// createSIF
//---------------------------------------------------------
SynthIF* MetronomeSynth::createSIF(SynthI* s)
{
return new MetronomeSynthIF(s);
}
//---------------------------------------------------------
// process
// synthesize n samples into buffer+offset
//---------------------------------------------------------
void MetronomeSynthIF::process(float** buffer, int offset, int n)
{
// Added by Tim. p3.3.18
#ifdef METRONOME_DEBUG
printf("MusE: MetronomeSynthIF::process data:%p offset:%d n:%d\n", data, offset, n);
#endif
if (data == 0)
return;
const float* s = data + pos;
float* d = *buffer + offset;
int l = std::min(n, len);
for (int i = 0; i < l; ++i)
*d++ += *s++ * MusEGlobal::audioClickVolume * volume;
pos += l;
len -= l;
if (len <= 0)
data = 0;
}
//---------------------------------------------------------
// initMetronome
//---------------------------------------------------------
void initMetronome()
{
QFileInfo fi;
metronomeSynth = new MetronomeSynth(fi);
metronome = new MetronomeSynthI();
QString name("metronome");
metronome->initInstance(metronomeSynth, name);
}
//---------------------------------------------------------
// exitMetronome
//---------------------------------------------------------
void exitMetronome()
{
if(metronome)
delete metronome;
metronome = 0;
if(metronomeSynth)
delete metronomeSynth;
metronomeSynth = 0;
}
} // namespace MusECore
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