static int BlockOut(NativeMidiSong *song)
{
MMRESULT err;
int BlockSize;
if ((song->MusicLoaded) && (song->NewEvents))
{
// proff 12/8/98: Added for savety
midiOutUnprepareHeader((HMIDIOUT)hMidiStream,&song->MidiStreamHdr,sizeof(MIDIHDR));
if (song->NewPos>=song->Size)
return 0;
BlockSize=(song->Size-song->NewPos);
if (BlockSize<=0)
return 0;
if (BlockSize>36000)
BlockSize=36000;
song->MidiStreamHdr.lpData=(void *)((unsigned char *)song->NewEvents+song->NewPos);
song->NewPos+=BlockSize;
song->MidiStreamHdr.dwBufferLength=BlockSize;
song->MidiStreamHdr.dwBytesRecorded=BlockSize;
song->MidiStreamHdr.dwFlags=0;
err=midiOutPrepareHeader((HMIDIOUT)hMidiStream,&song->MidiStreamHdr,sizeof(MIDIHDR));
if (err!=MMSYSERR_NOERROR)
return 0;
err=midiStreamOut(hMidiStream,&song->MidiStreamHdr,sizeof(MIDIHDR));
return 0;
}
return 1;
}
static PmError winmm_write_flush(PmInternal *midi, PmTimestamp timestamp)
{
midiwinmm_type m = (midiwinmm_type) midi->descriptor;
assert(m);
if (m->hdr) {
m->error = midiOutPrepareHeader(m->handle.out, m->hdr,
sizeof(MIDIHDR));
if (m->error) {
/* do not send message */
} else if (midi->latency == 0) {
/* As pointed out by Nigel Brown, 20Sep06, dwBytesRecorded
* should be zero. This is set in get_free_sysex_buffer().
* The msg length goes in dwBufferLength in spite of what
* Microsoft documentation says (or doesn't say). */
m->hdr->dwBufferLength = m->hdr->dwBytesRecorded;
m->hdr->dwBytesRecorded = 0;
m->error = midiOutLongMsg(m->handle.out, m->hdr, sizeof(MIDIHDR));
} else {
m->error = midiStreamOut(m->handle.stream, m->hdr,
sizeof(MIDIHDR));
}
midi->fill_base = NULL;
m->hdr = NULL;
if (m->error) {
m->hdr->dwFlags = 0; /* release the buffer */
return pmHostError;
}
}
return pmNoError;
}
static MMRESULT playStream(HMIDISTRM hm, LPMIDIHDR lpMidiHdr)
{
MMRESULT rc = midiStreamOut(hm, lpMidiHdr, sizeof(MIDIHDR));
/* virtual machines may return MIDIERR_STILLPLAYING from the next request
* even after MHDR_DONE is set. It's still too early, so add MHDR_INQUEUE. */
if (!rc) while (!(lpMidiHdr->dwFlags & MHDR_DONE) || (lpMidiHdr->dwFlags & MHDR_INQUEUE)) { Sleep(100); }
return rc;
}
void MPU_FinishBuffer( int buffer )
{
if (!eventcnt[buffer]) return;
ZeroMemory(&bufferheaders[buffer], sizeof(MIDIHDR));
bufferheaders[buffer].lpData = eventbuf[buffer];
bufferheaders[buffer].dwBufferLength =
bufferheaders[buffer].dwBytesRecorded = eventcnt[buffer];
midiOutPrepareHeader((HMIDIOUT)hmido, &bufferheaders[buffer], sizeof(MIDIHDR));
midiStreamOut(hmido, &bufferheaders[buffer], sizeof(MIDIHDR));
// printf("Sending %d bytes (buffer %d)\n",eventcnt[buffer],buffer);
_MPU_BuffersWaiting++;
}
static void FAR PASCAL s_MidiCallback(HMIDISTRM hms, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2) {
WinmidiObject *obj = (WinmidiObject *) dwUser;
int retVal;
UNUSED(hms);
UNUSED(dw1);
UNUSED(dw2);
assert(obj);
/* Only process Done messages. */
if(uMsg != MOM_DONE) {
return;
}
while(obj->m_playNode) {
/* Clear the playing flag. */
obj->m_playNode->m_blockState = BLOCK_PLAYED;
/* Play the next block, if available. */
obj->m_playNode = obj->m_playNode->m_next;
if(obj->m_playNode) {
/* Check to see if we have exhausted the ready blocks. */
if(obj->m_playNode->m_blockState != BLOCK_READY) {
return;
}
obj->m_playNode->m_blockState = BLOCK_PLAYING;
retVal = midiStreamOut(obj->m_midiOut, &obj->m_playNode->m_header,
sizeof(obj->m_playNode->m_header));
if(retVal == MMSYSERR_NOERROR) {
return;
} else {
fprintf(stderr, "Error occurred while advancing MIDI block pointer.\n");
}
} else {
retVal = midiStreamPause(obj->m_midiOut);
if(retVal != MMSYSERR_NOERROR) {
fprintf(stderr, "Error occurred while pausing MIDI playback.");
}
return;
}
}
}
static int s_PrepareBlockNodes(WinmidiObject *obj) {
UINT retVal;
MidiBlockNode *node;
MidiBlockNode *firstReady = 0;
assert(obj);
/* Go through the list and prepare all written blocks. */
node = obj->m_list;
while(node) {
if(node->m_blockState == BLOCK_WRITING) {
if(!firstReady) {
firstReady = node;
}
retVal = midiOutPrepareHeader((HMIDIOUT)obj->m_midiOut,
&node->m_header,
sizeof(node->m_header));
if(retVal != MMSYSERR_NOERROR) {
s_SetMidiError("preparing header", retVal);
return 0;
}
node->m_blockState = BLOCK_READY;
}
node = node->m_next;
}
/* If we actually prepared some blocks for playing, queue the first
* one. */
if(!obj->m_playNode && firstReady) {
obj->m_playNode = firstReady;
(void)midiStreamOut(obj->m_midiOut, &firstReady->m_header,
sizeof(firstReady->m_header));
}
retVal = midiStreamRestart(obj->m_midiOut);
if(retVal != MMSYSERR_NOERROR) {
s_SetMidiError("restarting MIDI stream", retVal);
return 0;
}
return 1;
}
static void test_midiStream(UINT udev, HWND hwnd)
{
HMIDISTRM hm;
MMRESULT rc, rc2;
MIDIHDR mhdr;
union {
MIDIPROPTEMPO tempo;
MIDIPROPTIMEDIV tdiv;
} midiprop;
if (hwnd)
rc = midiStreamOpen(&hm, &udev, 1, (DWORD_PTR)hwnd, (DWORD_PTR)MYCBINST, CALLBACK_WINDOW);
else
rc = midiStreamOpen(&hm, &udev, 1, (DWORD_PTR)callback_func, (DWORD_PTR)MYCBINST, CALLBACK_FUNCTION);
if (rc == MMSYSERR_NOTSUPPORTED)
{
skip( "MIDI stream not supported\n" );
return;
}
ok(!rc, "midiStreamOpen(dev=%d) rc=%s\n", udev, mmsys_error(rc));
if (rc) return;
test_notification(hwnd, "midiStreamOpen", MOM_OPEN, 0);
midiprop.tempo.cbStruct = sizeof(midiprop.tempo);
rc = midiStreamProperty(hm, (void*)&midiprop, MIDIPROP_GET|MIDIPROP_TEMPO);
ok(!rc, "midiStreamProperty TEMPO rc=%s\n", mmsys_error(rc));
ok(midiprop.tempo.dwTempo==500000, "default stream tempo %u microsec per quarter note\n", midiprop.tempo.dwTempo);
midiprop.tdiv.cbStruct = sizeof(midiprop.tdiv);
rc = midiStreamProperty(hm, (void*)&midiprop, MIDIPROP_GET|MIDIPROP_TIMEDIV);
ok(!rc, "midiStreamProperty TIMEDIV rc=%s\n", mmsys_error(rc));
todo_wine ok(24==LOWORD(midiprop.tdiv.dwTimeDiv), "default stream time division %u\n", midiprop.tdiv.dwTimeDiv);
memset(&mhdr, 0, sizeof(mhdr));
mhdr.dwFlags = 0;
mhdr.dwUser = 0x56FA552C;
mhdr.dwOffset = 1234567890;
mhdr.dwBufferLength = sizeof(strmEvents);
mhdr.dwBytesRecorded = mhdr.dwBufferLength;
mhdr.lpData = (LPSTR)&strmEvents[0];
if (mhdr.lpData) {
rc = midiOutLongMsg((HMIDIOUT)hm, &mhdr, sizeof(mhdr));
ok(rc==MIDIERR_UNPREPARED, "midiOutLongMsg unprepared rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "midiOutLong unprepared", 0, WHATEVER);
rc = midiOutPrepareHeader((HMIDIOUT)hm, &mhdr, offsetof(MIDIHDR,dwOffset)-1);
ok(rc==MMSYSERR_INVALPARAM, "midiOutPrepare tiny rc=%s\n", mmsys_error(rc));
rc = midiOutPrepareHeader((HMIDIOUT)hm, &mhdr, offsetof(MIDIHDR,dwOffset));
ok(!rc, "midiOutPrepare old size rc=%s\n", mmsys_error(rc));
ok(mhdr.dwFlags & MHDR_PREPARED, "MHDR.dwFlags when prepared %x\n", mhdr.dwFlags);
/* The device is still in paused mode and should queue the message. */
rc = midiStreamOut(hm, &mhdr, offsetof(MIDIHDR,dwOffset));
ok(!rc, "midiStreamOut old size rc=%s\n", mmsys_error(rc));
rc2 = rc;
trace("MIDIHDR flags=%x when submitted\n", mhdr.dwFlags);
/* w9X/me does not set MHDR_ISSTRM when StreamOut exits,
* but it will be set on all systems after the job is finished. */
Sleep(90);
/* Wine <1.1.39 started playing immediately */
test_notification(hwnd, "midiStream still paused", 0, WHATEVER);
/* MSDN asks to use midiStreamRestart prior to midiStreamOut()
* because the starting state is 'pause', but some apps seem to
* work with the inverse order: queue everything, then play.
*/
rc = midiStreamRestart(hm);
ok(!rc, "midiStreamRestart rc=%s\n", mmsys_error(rc));
if (!rc2) while(mhdr.dwFlags & MHDR_INQUEUE) {
trace("async MIDI still queued\n");
Sleep(100);
} /* Checking INQUEUE is not the recommended way to wait for the end of a job, but we're testing. */
/* MHDR_ISSTRM is not necessarily set when midiStreamOut returns
* rather than when the queue is eventually processed. */
ok(mhdr.dwFlags & MHDR_ISSTRM, "MHDR.dwFlags %x no ISSTRM when out of queue\n", mhdr.dwFlags);
if (!rc2) while(!(mhdr.dwFlags & MHDR_DONE)) {
/* Never to be seen except perhaps on multicore */
trace("async MIDI still not done\n");
Sleep(100);
}
ok(mhdr.dwFlags & MHDR_DONE, "MHDR.dwFlags %x not DONE when out of queue\n", mhdr.dwFlags);
test_notification(hwnd, "midiStream callback", MOM_POSITIONCB, (DWORD_PTR)&mhdr);
test_notification(hwnd, "midiStreamOut", MOM_DONE, (DWORD_PTR)&mhdr);
/* Native fills dwOffset regardless of the cbMidiHdr size argument to midiStreamOut */
ok(1234567890!=mhdr.dwOffset, "play left MIDIHDR.dwOffset at %u\n", mhdr.dwOffset);
rc = midiOutUnprepareHeader((HMIDIOUT)hm, &mhdr, offsetof(MIDIHDR,dwOffset));
ok(!rc, "midiOutUnprepare rc=%s\n", mmsys_error(rc));
rc = midiOutUnprepareHeader((HMIDIOUT)hm, &mhdr, offsetof(MIDIHDR,dwOffset));
ok(!rc, "midiOutUnprepare #2 rc=%s\n", mmsys_error(rc));
trace("MIDIHDR stream flags=%x when finished\n", mhdr.dwFlags);
ok(mhdr.dwFlags & MHDR_DONE, "MHDR.dwFlags when done %x\n", mhdr.dwFlags);
test_position(hm, TIME_MS, TIME_MS);
test_position(hm, TIME_TICKS, TIME_TICKS);
todo_wine test_position(hm, TIME_MIDI, TIME_MIDI);
test_position(hm, TIME_SMPTE, TIME_MS);
test_position(hm, TIME_SAMPLES, TIME_MS);
test_position(hm, TIME_BYTES, TIME_MS);
Sleep(400); /* Hear note */
midiprop.tempo.cbStruct = sizeof(midiprop.tempo);
rc = midiStreamProperty(hm, (void*)&midiprop, MIDIPROP_GET|MIDIPROP_TEMPO);
ok(!rc, "midiStreamProperty TEMPO rc=%s\n", mmsys_error(rc));
ok(0x0493E0==midiprop.tempo.dwTempo, "stream set tempo %u\n", midiprop.tdiv.dwTimeDiv);
rc = midiStreamRestart(hm);
ok(!rc, "midiStreamRestart #2 rc=%s\n", mmsys_error(rc));
mhdr.dwFlags |= MHDR_ISSTRM;
/* Preset flags (e.g. MHDR_ISSTRM) do not disturb. */
rc = midiOutPrepareHeader((HMIDIOUT)hm, &mhdr, offsetof(MIDIHDR,dwOffset));
ok(!rc, "midiOutPrepare used flags %x rc=%s\n", mhdr.dwFlags, mmsys_error(rc));
rc = midiOutUnprepareHeader((HMIDIOUT)hm, &mhdr, offsetof(MIDIHDR,dwOffset));
ok(!rc, "midiOutUnprepare used flags %x rc=%s\n", mhdr.dwFlags, mmsys_error(rc));
rc = midiStreamRestart(hm);
ok(!rc, "midiStreamRestart #3 rc=%s\n", mmsys_error(rc));
}
ok(mhdr.dwUser==0x56FA552C, "MIDIHDR.dwUser changed to %lx\n", mhdr.dwUser);
ok(0==((MIDISHORTEVENT*)&strmEvents)[0].dwStreamID, "dwStreamID set to %x\n", ((LPMIDIEVENT)&strmEvents[0])->dwStreamID);
/* dwBytesRecorded controls how much is played, not dwBufferLength
* allowing to immediately forward packets from midiIn to midiOut */
mhdr.dwOffset = 1234123123;
mhdr.dwBufferLength = sizeof(strmNops);
trace("buffer: %u\n", mhdr.dwBufferLength);
mhdr.dwBytesRecorded = 0;
mhdr.lpData = (LPSTR)&strmNops[0];
strmNops[0].dwEvent |= MEVT_F_CALLBACK;
strmNops[1].dwEvent |= MEVT_F_CALLBACK;
rc = midiOutPrepareHeader((HMIDIOUT)hm, &mhdr, sizeof(mhdr));
ok(!rc, "midiOutPrepare rc=%s\n", mmsys_error(rc));
rc = playStream(hm, &mhdr);
ok(!rc, "midiStreamOut 0 bytes recorded rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "midiStreamOut", MOM_DONE, (DWORD_PTR)&mhdr);
test_notification(hwnd, "0 bytes recorded", 0, WHATEVER);
/* FIXME: check dwOffset within callback
* instead of the unspecified value afterwards */
ok(1234123123==mhdr.dwOffset || broken(0==mhdr.dwOffset), "play 0 set MIDIHDR.dwOffset to %u\n", mhdr.dwOffset);
/* w2k and later only set dwOffset when processing MEVT_T_CALLBACK,
* while w9X/me/nt always sets it. Have Wine behave like w2k because the
* dwOffset slot does not exist in the small size MIDIHDR. */
mhdr.dwOffset = 1234123123;
mhdr.dwBytesRecorded = 1*sizeof(MIDISHORTEVENT);
rc = playStream(hm, &mhdr);
ok(!rc, "midiStreamOut 1 event out of 2 rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "1 of 2 events", MOM_POSITIONCB, (DWORD_PTR)&mhdr);
test_notification(hwnd, "1 of 2 events", MOM_DONE, (DWORD_PTR)&mhdr);
test_notification(hwnd, "1 of 2 events", 0, WHATEVER);
ok(0==mhdr.dwOffset, "MIDIHDR.dwOffset 1/2 changed to %u\n", mhdr.dwOffset);
mhdr.dwOffset = 1234123123;
mhdr.dwBytesRecorded = 2*sizeof(MIDISHORTEVENT);
rc = playStream(hm, &mhdr);
ok(!rc, "midiStreamOut 1 event out of 2 rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "2 of 2 events", MOM_POSITIONCB, (DWORD_PTR)&mhdr);
test_notification(hwnd, "2 of 2 events", MOM_POSITIONCB, (DWORD_PTR)&mhdr);
test_notification(hwnd, "2 of 2 events", MOM_DONE, (DWORD_PTR)&mhdr);
test_notification(hwnd, "2 of 2 events", 0, WHATEVER);
ok(sizeof(MIDISHORTEVENT)==mhdr.dwOffset, "MIDIHDR.dwOffset 2/2 changed to %u\n", mhdr.dwOffset);
ok(mhdr.dwBytesRecorded == 2*sizeof(MIDISHORTEVENT), "dwBytesRecorded changed to %u\n", mhdr.dwBytesRecorded);
strmNops[0].dwEvent &= ~MEVT_F_CALLBACK;
strmNops[1].dwEvent &= ~MEVT_F_CALLBACK;
mhdr.dwOffset = 1234123123;
rc = playStream(hm, &mhdr);
ok(!rc, "midiStreamOut 1 event out of 2 rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "0 CB in 2 events", MOM_DONE, (DWORD_PTR)&mhdr);
test_notification(hwnd, "0 CB in 2 events", 0, WHATEVER);
/* w9X/me/nt set dwOffset to the position played last */
ok(1234123123==mhdr.dwOffset || broken(sizeof(MIDISHORTEVENT)==mhdr.dwOffset), "MIDIHDR.dwOffset nocb changed to %u\n", mhdr.dwOffset);
mhdr.dwBytesRecorded = mhdr.dwBufferLength-1;
rc = playStream(hm, &mhdr);
ok(rc==MMSYSERR_INVALPARAM,"midiStreamOut dwBytesRecorded modulo MIDIEVENT rc=%s\n", mmsys_error(rc));
if (!rc) {
test_notification(hwnd, "2 of 2 events", MOM_DONE, (DWORD_PTR)&mhdr);
}
mhdr.dwBytesRecorded = mhdr.dwBufferLength+1;
rc = playStream(hm, &mhdr);
ok(rc==MMSYSERR_INVALPARAM,"midiStreamOut dwBufferLength<dwBytesRecorded rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "past MIDIHDR tests", 0, WHATEVER);
rc = midiStreamStop(hm);
ok(!rc, "midiStreamStop rc=%s\n", mmsys_error(rc));
ok(mhdr.dwUser==0x56FA552C, "MIDIHDR.dwUser changed to %lx\n", mhdr.dwUser);
rc = midiOutUnprepareHeader((HMIDIOUT)hm, &mhdr, sizeof(mhdr));
ok(!rc, "midiOutUnprepare rc=%s\n", mmsys_error(rc));
ok(0==strmNops[0].dwStreamID, "dwStreamID[0] set to %x\n", strmNops[0].dwStreamID);
ok(0==strmNops[1].dwStreamID, "dwStreamID[1] set to %x\n", strmNops[1].dwStreamID);
mhdr.dwBufferLength = 70000; /* > 64KB! */
mhdr.lpData = HeapAlloc(GetProcessHeap(), 0 , mhdr.dwBufferLength);
ok(mhdr.lpData!=NULL, "No %d bytes of memory!\n", mhdr.dwBufferLength);
if (mhdr.lpData) {
mhdr.dwFlags = 0;
/* PrepareHeader detects the too large buffer is for a stream. */
rc = midiOutPrepareHeader((HMIDIOUT)hm, &mhdr, sizeof(mhdr));
todo_wine ok(rc==MMSYSERR_INVALPARAM, "midiOutPrepare stream too large rc=%s\n", mmsys_error(rc));
rc = midiOutUnprepareHeader((HMIDIOUT)hm, &mhdr, sizeof(mhdr));
ok(!rc, "midiOutUnprepare rc=%s\n", mmsys_error(rc));
HeapFree(GetProcessHeap(), 0, mhdr.lpData);
}
rc = midiStreamClose(hm);
ok(!rc, "midiStreamClose rc=%s\n", mmsys_error(rc));
test_notification(hwnd, "midiStreamClose", MOM_CLOSE, 0);
test_notification(hwnd, "midiStream over", 0, WHATEVER);
rc = midiStreamOpen(&hm, &udev, 1, 0, (DWORD_PTR)MYCBINST, CALLBACK_FUNCTION);
ok(!rc /*w2k*/|| rc==MMSYSERR_INVALPARAM/*w98*/, "midiStreamOpen NULL function rc=%s\n", mmsys_error(rc));
if (!rc) {
trace("Device %d accepts NULL CALLBACK_FUNCTION\n", udev);
rc = midiStreamClose(hm);
ok(!rc, "midiStreamClose rc=%s\n", mmsys_error(rc));
}
rc = midiStreamOpen(&hm, &udev, 1, (DWORD_PTR)0xDEADBEEF, (DWORD_PTR)MYCBINST, CALLBACK_WINDOW);
ok(rc==MMSYSERR_INVALPARAM, "midiStreamOpen bad window rc=%s\n", mmsys_error(rc));
if (!rc) {
rc = midiStreamClose(hm);
ok(!rc, "midiStreamClose rc=%s\n", mmsys_error(rc));
}
}
int WinMIDIDevice::StreamOut(MidiHeader *header)
{
auto syshdr = (MIDIHDR*)header->lpNext;
assert(syshdr == &WinMidiHeaders[0] || syshdr == &WinMidiHeaders[1]);
return midiStreamOut(MidiOut, syshdr, sizeof(MIDIHDR));
}
void WinMIDIStreamer::Play(int looped)
{
UINT i;
// Do we need to prepare the MIDI data?
if(!registered)
{
// The song is already loaded in the song buffer.
DeregisterSong();
// Prepare the buffers.
if(song)
{
LPMIDIHDR mh = GetFreeBuffer();
MIDIEVENT mev;
DWORD* ptr;
// First add the tempo.
ptr = (DWORD *) mh->lpData;
*ptr++ = 0;
*ptr++ = 0;
*ptr++ = (MEVT_TEMPO << 24) | 1000000; // One second.
mh->dwBytesRecorded = 3 * sizeof(DWORD);
// Start reading the events.
readPos = (byte *) song + ((musheader_t*)song)->scoreStart;
readTime = 0;
while(GetNextEvent(&mev))
{
// Is the buffer getting full?
if(mh->dwBufferLength - mh->dwBytesRecorded < 3 * sizeof(DWORD))
{
// Try to get more buffer.
if(!ResizeWorkBuffer(mh))
{
// Not possible, buffer size has reached the limit.
// We need to start working on another one.
midiOutPrepareHeader((HMIDIOUT) midiStr, mh, sizeof(*mh));
mh = GetFreeBuffer();
if(!mh)
return; // Oops.
}
}
// Add the event.
ptr = (DWORD *) (mh->lpData + mh->dwBytesRecorded);
*ptr++ = mev.dwDeltaTime;
*ptr++ = 0;
*ptr++ = mev.dwEvent;
mh->dwBytesRecorded += 3 * sizeof(DWORD);
}
// Prepare the last buffer, too.
midiOutPrepareHeader((HMIDIOUT) midiStr, mh, sizeof(*mh));
}
// Now there is a registered song.
registered = TRUE;
}
playing = true;
Reset();
// Stream out all buffers.
for(i = 0; i < MAX_BUFFERS; ++i)
{
if(midiBuffers[i].dwUser)
{
loopBuffer = &midiBuffers[i];
midiStreamOut(midiStr, &midiBuffers[i], sizeof(midiBuffers[i]));
}
}
// If we aren't looping, don't bother.
if(!looped)
loopBuffer = NULL;
// Start playing.
midiStreamRestart(midiStr);
}
static void midi_flush_current_buffer(void)
{
MMRESULT rv;
MIDIEVENT * evt;
BOOL needsPrepare = FALSE;
if (!currentMidiBuffer) {
return;
}
evt = (MIDIEVENT *) currentMidiBuffer->hdr.lpData;
if (!midiThread) {
// immediate messages don't use a MIDIEVENT header so strip it off and
// make some adjustments
currentMidiBuffer->hdr.dwBufferLength = currentMidiBuffer->hdr.dwBytesRecorded - 12;
currentMidiBuffer->hdr.dwBytesRecorded = 0;
currentMidiBuffer->hdr.lpData = (LPSTR) &evt->dwParms[0];
if (currentMidiBuffer->hdr.dwBufferLength > 0) {
needsPrepare = TRUE;
}
} else {
needsPrepare = TRUE;
}
if (needsPrepare) {
// playing a file, or sending a sysex when not playing means
// we need to prepare the buffer
rv = midiOutPrepareHeader( (HMIDIOUT) midiStream, ¤tMidiBuffer->hdr, sizeof(MIDIHDR) );
if (rv != MMSYSERR_NOERROR) {
midi_error(rv, "WinMM midi_flush_current_buffer midiOutPrepareHeader");
return;
}
currentMidiBuffer->prepared = TRUE;
}
if (midiThread) {
// midi file playing, so send events to the stream
LL_Add( (MidiBuffer*) &activeMidiBuffers, currentMidiBuffer, next, prev );
rv = midiStreamOut(midiStream, ¤tMidiBuffer->hdr, sizeof(MIDIHDR));
if (rv != MMSYSERR_NOERROR) {
midi_error(rv, "WinMM midi_flush_current_buffer midiStreamOut");
midi_dispose_buffer(currentMidiBuffer, "midi_flush_current_buffer");
return;
}
//fprintf(stderr, "WinMM midi_flush_current_buffer queued buffer %p\n", currentMidiBuffer);
} else {
// midi file not playing, so send immediately
if (currentMidiBuffer->hdr.dwBufferLength > 0) {
rv = midiOutLongMsg( (HMIDIOUT) midiStream, ¤tMidiBuffer->hdr, sizeof(MIDIHDR) );
if (rv == MMSYSERR_NOERROR) {
// busy-wait for Windows to be done with it
while (!(currentMidiBuffer->hdr.dwFlags & MHDR_DONE)) ;
//fprintf(stderr, "WinMM midi_flush_current_buffer sent immediate long\n");
} else {
midi_error(rv, "WinMM midi_flush_current_buffer midiOutLongMsg");
}
} else {
rv = midiOutShortMsg( (HMIDIOUT) midiStream, evt->dwEvent );
if (rv == MMSYSERR_NOERROR) {
//fprintf(stderr, "WinMM midi_flush_current_buffer sent immediate short\n");
} else {
midi_error(rv, "WinMM midi_flush_current_buffer midiOutShortMsg");
}
}
midi_dispose_buffer(currentMidiBuffer, "midi_flush_current_buffer");
}
currentMidiBuffer = 0;
}
