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MyMidiOut.cpp
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#include <vector>
#include "DirectMidi/CDirectMidi.h"
#include "MyMidi.h"
using namespace std;
using namespace directmidi;
extern CDirectMusic gDMusic;
COutputPort gOutPort;
CDLSLoader gLoader;
CCollection gCollection;
vector<CInstrument> gInstruments;
int MyMidi_LoadDLS (const char* filename, int sampleRate)
{
MyMidi_ResetLastError();
MyMidi_UnloadDLS();
try
{
gOutPort.Initialize(gDMusic); // it's ok to reinitialize COutputPort
INFOPORT PortInfo;
DWORD dwPortCount = 0;
// selection first Software Synthesizer
do
gOutPort.GetPortInfo(++dwPortCount,&PortInfo);
while (!(PortInfo.dwFlags & DMUS_PC_SOFTWARESYNTH));
gOutPort.SetPortParams(0,0,1,SET_REVERB | SET_CHORUS,sampleRate);
gOutPort.ActivatePort(&PortInfo);
printf("MyMidi: Selected output port: %s\n", PortInfo.szPortDescription);
gLoader.Initialize();
gLoader.LoadDLS((LPSTR) filename, gCollection);
INSTRUMENTINFO InstInfo;
DWORD dwInstIndex = 0;
while (gCollection.EnumInstrument(dwInstIndex,&InstInfo) == S_OK)
{
printf("MyMidi: Found instrument #%u: %s\n", dwInstIndex, InstInfo.szInstName);
dwInstIndex++;
}
gInstruments.resize(dwInstIndex);
for (DWORD i = 0; i < gInstruments.size(); i++)
{
gCollection.GetInstrument(gInstruments[i],i);
gInstruments[i].SetNoteRange(0,0);
}
return 1;
}
catch (CDMusicException& e)
{
MyMidi_SetLastError(__FUNCTION__, e.GetErrorDescription());
}
return 0;
}
int MyMidi_UnloadDLS ()
{
MyMidi_ResetLastError();
if (gInstruments.empty())
return 1;
try
{
gLoader.UnloadCollection(gCollection);
DWORD lowNote, highNote;
for (DWORD i = 0; i < gInstruments.size(); i++)
{
gInstruments[i].GetNoteRange(&lowNote, &highNote);
if (lowNote == 0 && highNote == 127)
gOutPort.UnloadInstrument(gInstruments[i]);
}
gInstruments.clear();
gOutPort.ReleasePort();
return 1;
}
catch (CDMusicException& e)
{
MyMidi_SetLastError(__FUNCTION__, e.GetErrorDescription());
}
return 0;
}
unsigned int MyMidi_GetInstrumentCount ()
{
MyMidi_ResetLastError();
return gInstruments.size();
}
const char* MyMidi_GetInstrumentName (unsigned int index)
{
MyMidi_ResetLastError();
if (index >= gInstruments.size())
{
MyMidi_SetLastError(__FUNCTION__, "Index out of range");
return NULL;
}
return gInstruments[index].m_strInstName;
}
int MyMidi_LoadInstrument (unsigned int index, int patch)
{
MyMidi_ResetLastError();
if (index >= gInstruments.size())
{
MyMidi_SetLastError(__FUNCTION__, "Index out of range");
return 0;
}
MyMidi_UnloadInstrument(index);
try
{
gInstruments[index].SetPatch(patch);
gInstruments[index].SetNoteRange(0,127);
gOutPort.DownloadInstrument(gInstruments[index]);
return 1;
}
catch (CDMusicException& e)
{
MyMidi_SetLastError(__FUNCTION__, e.GetErrorDescription());
}
return 0;
}
int MyMidi_UnloadInstrument (unsigned int index)
{
MyMidi_ResetLastError();
if (index >= gInstruments.size())
{
MyMidi_SetLastError(__FUNCTION__, "Index out of range");
return 0;
}
try
{
DWORD lowNote, highNote;
gInstruments[index].GetNoteRange(&lowNote, &highNote);
if (lowNote == 0 && highNote == 127)
{
gOutPort.UnloadInstrument(gInstruments[index]);
gInstruments[index].SetNoteRange(0, 0);
}
return 1;
}
catch (CDMusicException& e)
{
MyMidi_SetLastError(__FUNCTION__, e.GetErrorDescription());
}
return 0;
}
int MyMidi_SendMessage (char command, char channel, char data0, char data1)
{
MyMidi_ResetLastError();
try
{
gOutPort.SendMidiMsg(COutputPort::EncodeMidiMsg(command,channel,data0,data1),0);
return 1;
}
catch (CDMusicException& e)
{
MyMidi_SetLastError(__FUNCTION__, e.GetErrorDescription());
}
return 0;
}