dosbox-wii/src/gui/midi_win32.h

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2009-05-02 23:35:44 +02:00
/*
* Copyright (C) 2002-2003 The DOSBox Team
*
* 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; either 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <windows.h>
#include <mmsystem.h>
class MidiHandler_win32: public MidiHandler {
private:
HMIDIOUT m_out;
MIDIHDR m_hdr;
HANDLE m_event;
bool isOpen;
public:
MidiHandler_win32() : isOpen(false),MidiHandler() {};
char * GetName(void) { return "win32";};
bool Open(const char * conf) {
if (isOpen) return false;
m_event = CreateEvent (NULL, true, true, NULL);
MMRESULT res = midiOutOpen(&m_out, MIDI_MAPPER, (DWORD)m_event, 0, CALLBACK_EVENT);
if (res != MMSYSERR_NOERROR) return false;
isOpen=true;
return true;
};
void Close(void) {
if (!isOpen) return;
isOpen=false;
midiOutClose(m_out);
CloseHandle (m_event);
};
void PlayMsg(Bit32u msg) {
midiOutShortMsg(m_out, msg);
};
void PlaySysex(Bit8u * sysex,Bitu len) {
if (WaitForSingleObject (m_event, 2000) == WAIT_TIMEOUT) {
LOG(LOG_MISC|LOG_ERROR,"Can't send midi message");
return;
}
midiOutUnprepareHeader (m_out, &m_hdr, sizeof (m_hdr));
m_hdr.lpData = (char *) sysex;
m_hdr.dwBufferLength = len ;
m_hdr.dwBytesRecorded = len ;
m_hdr.dwUser = 0;
MMRESULT result = midiOutPrepareHeader (m_out, &m_hdr, sizeof (m_hdr));
if (result != MMSYSERR_NOERROR) return;
ResetEvent (m_event);
result = midiOutLongMsg (m_out,&m_hdr,sizeof(m_hdr));
if (result != MMSYSERR_NOERROR) {
SetEvent (m_event);
return;
}
}
};
MidiHandler_win32 Midi_win32;