[Scummvm-cvs-logs] CVS: scummvm/backends/midi windows.cpp,1.4,1.5
Jamieson Christian
jamieson630 at users.sourceforge.net
Fri Jan 10 06:41:03 CET 2003
Update of /cvsroot/scummvm/scummvm/backends/midi
In directory sc8-pr-cvs1:/tmp/cvs-serv13798/backends/midi
Modified Files:
windows.cpp
Log Message:
First-revision SysEx support for -ewindows.
Index: windows.cpp
===================================================================
RCS file: /cvsroot/scummvm/scummvm/backends/midi/windows.cpp,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -d -r1.4 -r1.5
--- windows.cpp 12 Dec 2002 01:35:57 -0000 1.4
+++ windows.cpp 10 Jan 2003 14:40:22 -0000 1.5
@@ -32,6 +32,9 @@
class MidiDriver_WIN : public MidiDriver_MPU401 {
private:
+ MIDIHDR _streamHeader;
+ byte _streamBuffer [258]; // SysEx blocks should be no larger than 256 bytes
+ HANDLE _streamEvent;
HMIDIOUT _mo;
bool _isOpen;
@@ -43,6 +46,7 @@
int open();
void close();
void send(uint32 b);
+ void sysEx (byte *msg, uint16 length);
};
int MidiDriver_WIN::open()
@@ -50,7 +54,8 @@
if (_isOpen)
return MERR_ALREADY_OPEN;
- MMRESULT res = midiOutOpen((HMIDIOUT *) &_mo, MIDI_MAPPER, 0, 0, 0);
+ _streamEvent = CreateEvent (NULL, true, true, NULL);
+ MMRESULT res = midiOutOpen((HMIDIOUT *) &_mo, MIDI_MAPPER, (unsigned long) _streamEvent, 0, CALLBACK_EVENT);
if (res != MMSYSERR_NOERROR) {
check_error(res);
return MERR_DEVICE_NOT_AVAILABLE;
@@ -64,6 +69,7 @@
{
_isOpen = false;
check_error(midiOutClose(_mo));
+ CloseHandle (_streamEvent);
}
void MidiDriver_WIN::send(uint32 b)
@@ -80,6 +86,42 @@
// printMidi(u.bData[0], u.bData[1], u.bData[2], u.bData[3]);
check_error(midiOutShortMsg(_mo, u.dwData));
+}
+
+void MidiDriver_WIN::sysEx (byte *msg, uint16 length)
+{
+ if (!_isOpen)
+ return;
+
+ if (WaitForSingleObject (_streamEvent, 2000) == WAIT_TIMEOUT) {
+ warning ("Could not send SysEx - MMSYSTEM is still trying to send data.");
+ return;
+ }
+
+ midiOutUnprepareHeader (_mo, &_streamHeader, sizeof (_streamHeader));
+ _streamBuffer [0] = 0xFF;
+ memcpy (&_streamBuffer[1], msg, length);
+ _streamBuffer [length+1] = 0xF7;
+
+ _streamHeader.lpData = (char *) _streamBuffer;
+ _streamHeader.dwBufferLength = length + 2;
+ _streamHeader.dwBytesRecorded = length + 2;
+ _streamHeader.dwUser = 0;
+ _streamHeader.dwFlags |= MHDR_ISSTRM;
+
+ MMRESULT result = midiOutPrepareHeader (_mo, &_streamHeader, sizeof (_streamHeader));
+ if (result != MMSYSERR_NOERROR) {
+ check_error (result);
+ return;
+ }
+
+ ResetEvent (_streamEvent);
+ result = midiOutLongMsg (_mo, &_streamHeader, sizeof (_streamHeader));
+ if (result != MMSYSERR_NOERROR) {
+ check_error (result);
+ SetEvent (_streamEvent);
+ return;
+ }
}
void MidiDriver_WIN::check_error(MMRESULT result)
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