midi.c 45.2 KB
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/* -*- tab-width: 8; c-basic-offset: 4 -*- */

/*
 * Sample MIDI Wine Driver for ALSA (basically Linux)
 *
 * Copyright 1994 	Martin Ayotte
 * Copyright 1998 	Luiz Otavio L. Zorzella (init procedures)
 * Copyright 1998/1999	Eric POUECH :
 * 		98/7 	changes for making this MIDI driver work on OSS
 * 			current support is limited to MIDI ports of OSS systems
 * 		98/9	rewriting MCI code for MIDI
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 * 		98/11 	split in midi.c and mcimidi.c
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 * Copyright 2003      Christian Costa :
 *                     ALSA port
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 *
 * TODO: Finish midi record
 *
 */

#include "config.h"

#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <fcntl.h>
#include <errno.h>

#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
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#include "winnls.h"
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#include "mmddk.h"
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#include "mmreg.h"
#include "dsound.h"
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#include "wine/debug.h"

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#include <alsa/asoundlib.h>

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WINE_DEFAULT_DEBUG_CHANNEL(midi);

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#ifndef SND_SEQ_PORT_TYPE_PORT
#define SND_SEQ_PORT_TYPE_PORT (1<<19)  /* Appears in version 1.0.12rc1 */
#endif

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typedef struct {
    int			state;                  /* -1 disabled, 0 is no recording started, 1 in recording, bit 2 set if in sys exclusive recording */
    DWORD		bufsize;
    MIDIOPENDESC	midiDesc;
    WORD		wFlags;
    LPMIDIHDR	 	lpQueueHdr;
    DWORD		dwTotalPlayed;
    unsigned char	incoming[3];
    unsigned char	incPrev;
    char		incLen;
    DWORD		startTime;
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    MIDIINCAPSW         caps;
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    snd_seq_addr_t      addr;
} WINE_MIDIIN;

typedef struct {
    BOOL                bEnabled;
    DWORD		bufsize;
    MIDIOPENDESC	midiDesc;
    WORD		wFlags;
    LPMIDIHDR	 	lpQueueHdr;
    DWORD		dwTotalPlayed;
    void*		lpExtra;	 	/* according to port type (MIDI, FM...), extra data when needed */
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    MIDIOUTCAPSW        caps;
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    snd_seq_addr_t      addr;
} WINE_MIDIOUT;

static WINE_MIDIIN	MidiInDev [MAX_MIDIINDRV ];
static WINE_MIDIOUT	MidiOutDev[MAX_MIDIOUTDRV];

/* this is the total number of MIDI out devices found (synth and port) */
static	int 		MODM_NumDevs = 0;
/* this is the total number of MIDI out devices found */
static	int 		MIDM_NumDevs = 0;

static	snd_seq_t*      midiSeq = NULL;
static	int		numOpenMidiSeq = 0;
static	int		numStartedMidiIn = 0;

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static int port_in;
static int port_out;
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static CRITICAL_SECTION crit_sect;   /* protects all MidiIn buffer queues */
static CRITICAL_SECTION_DEBUG critsect_debug =
{
    0, 0, &crit_sect,
    { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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      0, 0, { (DWORD_PTR)(__FILE__ ": crit_sect") }
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};
static CRITICAL_SECTION crit_sect = { &critsect_debug, -1, 0, 0, 0, 0 };

static int end_thread;
static HANDLE hThread;

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/*======================================================================*
 *                  Low level MIDI implementation			*
 *======================================================================*/

static int midiOpenSeq(int);
static int midiCloseSeq(void);

#if 0 /* Debug Purpose */
static void error_handler(const char* file, int line, const char* function, int err, const char* fmt, ...)
{
    va_list arg;
    if (err == ENOENT)
        return;
    va_start(arg, fmt);
    fprintf(stderr, "ALSA lib %s:%i:(%s) ", file, line, function);
    vfprintf(stderr, fmt, arg);
    if (err)
        fprintf(stderr, ": %s", snd_strerror(err));
    putc('\n', stderr);
    va_end(arg);
}
#endif

/**************************************************************************
 * 			MIDI_unixToWindowsDeviceType  		[internal]
 *
 * return the Windows equivalent to a Unix Device Type
 *
 */
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static	int 	MIDI_AlsaToWindowsDeviceType(unsigned int type)
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{
    /* MOD_MIDIPORT     output port
     * MOD_SYNTH        generic internal synth
     * MOD_SQSYNTH      square wave internal synth
     * MOD_FMSYNTH      FM internal synth
     * MOD_MAPPER       MIDI mapper
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     * MOD_WAVETABLE    hardware wavetable internal synth
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     * MOD_SWSYNTH      software internal synth
     */

    /* FIXME Is this really the correct equivalence from ALSA to
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       Windows Sound type? */
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    if (type & SND_SEQ_PORT_TYPE_SYNTH)
        return MOD_FMSYNTH;

    if (type & (SND_SEQ_PORT_TYPE_DIRECT_SAMPLE|SND_SEQ_PORT_TYPE_SAMPLE))
        return MOD_SYNTH;

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    if (type & (SND_SEQ_PORT_TYPE_MIDI_GENERIC|SND_SEQ_PORT_TYPE_APPLICATION))
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        return MOD_MIDIPORT;
    
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    ERR("Cannot determine the type (alsa type is %x) of this midi device. Assuming FM Synth\n", type);
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    return MOD_FMSYNTH;
}

/**************************************************************************
 * 			MIDI_NotifyClient			[internal]
 */
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static void MIDI_NotifyClient(UINT wDevID, WORD wMsg,
			      DWORD_PTR dwParam1, DWORD_PTR dwParam2)
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{
    DWORD 		dwCallBack;
    UINT 		uFlags;
    HANDLE		hDev;
    DWORD 		dwInstance;

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    TRACE("wDevID = %04X wMsg = %d dwParm1 = %04lX dwParam2 = %04lX\n",
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	  wDevID, wMsg, dwParam1, dwParam2);

    switch (wMsg) {
    case MOM_OPEN:
    case MOM_CLOSE:
    case MOM_DONE:
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    case MOM_POSITIONCB:
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	if (wDevID > MODM_NumDevs) return;
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	dwCallBack = MidiOutDev[wDevID].midiDesc.dwCallback;
	uFlags = MidiOutDev[wDevID].wFlags;
	hDev = MidiOutDev[wDevID].midiDesc.hMidi;
	dwInstance = MidiOutDev[wDevID].midiDesc.dwInstance;
	break;

    case MIM_OPEN:
    case MIM_CLOSE:
    case MIM_DATA:
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    case MIM_LONGDATA:
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    case MIM_ERROR:
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    case MIM_LONGERROR:
    case MIM_MOREDATA:
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	if (wDevID > MIDM_NumDevs) return;
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	dwCallBack = MidiInDev[wDevID].midiDesc.dwCallback;
	uFlags = MidiInDev[wDevID].wFlags;
	hDev = MidiInDev[wDevID].midiDesc.hMidi;
	dwInstance = MidiInDev[wDevID].midiDesc.dwInstance;
	break;
    default:
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	ERR("Unsupported MSW-MIDI message %u\n", wMsg);
	return;
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    }

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    DriverCallback(dwCallBack, uFlags, hDev, wMsg, dwInstance, dwParam1, dwParam2);
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}

static int midi_warn = 1;
/**************************************************************************
 * 			midiOpenSeq				[internal]
 */
static int midiOpenSeq(int create_client)
{
    if (numOpenMidiSeq == 0) {
	if (snd_seq_open(&midiSeq, "default", SND_SEQ_OPEN_DUPLEX, 0) < 0)
        {
	    if (midi_warn)
	    {
		WARN("Error opening ALSA sequencer.\n");
	    }
	    midi_warn = 0;
	    return -1;
	}

	if (create_client) {
	    /* Setting the client name is the only init to do */
	    snd_seq_set_client_name(midiSeq, "WINE midi driver");

#if 0 /* FIXME: Is it possible to use a port for READ & WRITE ops */
            port_in = port_out = snd_seq_create_simple_port(midiSeq, "WINE ALSA Input/Output", SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_WRITE,
	             	                                                 SND_SEQ_PORT_TYPE_APPLICATION);
            if (port_out < 0)
               TRACE("Unable to create output port\n");
            else
	       TRACE("Outport port created successfully (%d)\n", port_out);
#else
            port_out = snd_seq_create_simple_port(midiSeq, "WINE ALSA Output", SND_SEQ_PORT_CAP_READ,
	                 	                                                 SND_SEQ_PORT_TYPE_APPLICATION);
	    if (port_out < 0)
		TRACE("Unable to create output port\n");
	    else
		TRACE("Outport port created successfully (%d)\n", port_out);

	    port_in = snd_seq_create_simple_port(midiSeq, "WINE ALSA Input", SND_SEQ_PORT_CAP_WRITE,
	             	                                               SND_SEQ_PORT_TYPE_APPLICATION);
            if (port_in < 0)
                TRACE("Unable to create input port\n");
            else
	        TRACE("Input port created successfully (%d)\n", port_in);
#endif
       }
    }
    numOpenMidiSeq++;
    return 0;
}

/**************************************************************************
 * 			midiCloseSeq				[internal]
 */
static int midiCloseSeq(void)
{
    if (--numOpenMidiSeq == 0) {
	snd_seq_delete_simple_port(midiSeq, port_out);
	snd_seq_delete_simple_port(midiSeq, port_in);
	snd_seq_close(midiSeq);
	midiSeq = NULL;
    }
    return 0;
}

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static DWORD WINAPI midRecThread(LPVOID arg)
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{
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    int npfd;
    struct pollfd *pfd;

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    TRACE("Thread startup\n");
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    while(!end_thread) {
	TRACE("Thread loop\n");
	npfd = snd_seq_poll_descriptors_count(midiSeq, POLLIN);
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	pfd = HeapAlloc(GetProcessHeap(), 0, npfd * sizeof(struct pollfd));
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	snd_seq_poll_descriptors(midiSeq, pfd, npfd, POLLIN);

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	/* Check if an event is present */
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	if (poll(pfd, npfd, 250) < 0) {
	    HeapFree(GetProcessHeap(), 0, pfd);
	    continue;
	}

	/* Note: This definitely does not work.  
	 * while(snd_seq_event_input_pending(midiSeq, 0) > 0) {
	       snd_seq_event_t* ev;
	       snd_seq_event_input(midiSeq, &ev);
	       ....................
	       snd_seq_free_event(ev);
	   }*/

	do {
	    WORD wDevID;
	    snd_seq_event_t* ev;
	    snd_seq_event_input(midiSeq, &ev);
	    /* Find the target device */
	    for (wDevID = 0; wDevID < MIDM_NumDevs; wDevID++)
		if ( (ev->source.client == MidiInDev[wDevID].addr.client) && (ev->source.port == MidiInDev[wDevID].addr.port) )
		    break;
	    if ((wDevID == MIDM_NumDevs) || (MidiInDev[wDevID].state != 1))
		FIXME("Unexpected event received, type = %x from %d:%d\n", ev->type, ev->source.client, ev->source.port);
	    else {
		DWORD dwTime, toSend = 0;
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		int value = 0;
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		/* FIXME: Should use ev->time instead for better accuracy */
		dwTime = GetTickCount() - MidiInDev[wDevID].startTime;
		TRACE("Event received, type = %x, device = %d\n", ev->type, wDevID);
		switch(ev->type)
		{
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		case SND_SEQ_EVENT_NOTEOFF:
		    toSend = (ev->data.note.velocity << 16) | (ev->data.note.note << 8) | MIDI_CMD_NOTE_OFF | ev->data.control.channel;
		    break;
		case SND_SEQ_EVENT_NOTEON:
		    toSend = (ev->data.note.velocity << 16) | (ev->data.note.note << 8) | MIDI_CMD_NOTE_ON | ev->data.control.channel;
		    break;
		case SND_SEQ_EVENT_KEYPRESS:
		    toSend = (ev->data.note.velocity << 16) | (ev->data.note.note << 8) | MIDI_CMD_NOTE_PRESSURE | ev->data.control.channel;
		    break;
		case SND_SEQ_EVENT_CONTROLLER: 
		    toSend = (ev->data.control.value << 16) | (ev->data.control.param << 8) | MIDI_CMD_CONTROL | ev->data.control.channel;
		    break;
		case SND_SEQ_EVENT_PITCHBEND:
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		    value = ev->data.control.value + 0x2000;
		    toSend = (((value >> 7) & 0x7f) << 16) | ((value & 0x7f) << 8) | MIDI_CMD_BENDER | ev->data.control.channel;
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		    break;
		case SND_SEQ_EVENT_PGMCHANGE:
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		    toSend = ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_PGM_CHANGE | ev->data.control.channel;
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		    break;
		case SND_SEQ_EVENT_CHANPRESS:
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		    toSend = ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_CHANNEL_PRESSURE | ev->data.control.channel;
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		    break;
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                case SND_SEQ_EVENT_CLOCK:
                    toSend = 0xF8;
                    break;
                case SND_SEQ_EVENT_START:
                    toSend = 0xFA;
                    break;
                case SND_SEQ_EVENT_CONTINUE:
                    toSend = 0xFB;
                    break;
                case SND_SEQ_EVENT_STOP:
                    toSend = 0xFC;
                    break;
                case SND_SEQ_EVENT_SONGPOS:
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                    toSend = (((ev->data.control.value >> 7) & 0x7f) << 16) | ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_COMMON_SONG_POS;
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                    break;
                case SND_SEQ_EVENT_SONGSEL:
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                  toSend = ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_COMMON_SONG_SELECT;
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                    break;
                case SND_SEQ_EVENT_RESET:
                    toSend = 0xFF;
                    break;
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                case SND_SEQ_EVENT_QFRAME:
                  toSend = ((ev->data.control.value & 0x7f) << 8) | MIDI_CMD_COMMON_MTC_QUARTER;
                    break;
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		case SND_SEQ_EVENT_SYSEX:
		    {
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			int pos = 0;
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			int len = ev->data.ext.len;
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                        LPBYTE ptr = ev->data.ext.ptr;
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			LPMIDIHDR lpMidiHdr;
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			EnterCriticalSection(&crit_sect);
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			while (len) {
			    if ((lpMidiHdr = MidiInDev[wDevID].lpQueueHdr) != NULL) {
				int copylen = min(len, lpMidiHdr->dwBufferLength - lpMidiHdr->dwBytesRecorded);
				memcpy(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded, ptr + pos, copylen);
				lpMidiHdr->dwBytesRecorded += copylen;
				len -= copylen;
				pos += copylen;
				/* We check if we reach the end of buffer or the end of sysex before notifying
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				 * to handle the case where ALSA split the sysex into several events */
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				if ((lpMidiHdr->dwBytesRecorded == lpMidiHdr->dwBufferLength) ||
				    (*(BYTE*)(lpMidiHdr->lpData + lpMidiHdr->dwBytesRecorded - 1) == 0xF7)) {
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				    lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
				    lpMidiHdr->dwFlags |= MHDR_DONE;
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                                    MidiInDev[wDevID].lpQueueHdr = lpMidiHdr->lpNext;
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				    MIDI_NotifyClient(wDevID, MIM_LONGDATA, (DWORD_PTR)lpMidiHdr, dwTime);
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				}
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			    } else {
				FIXME("Sysex data received but no buffer to store it!\n");
				break;
			    }
			}
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			LeaveCriticalSection(&crit_sect);
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		    }
		    break;
		case SND_SEQ_EVENT_SENSING:
		    /* Noting to do */
		    break;
		default:
		    FIXME("Unhandled event received, type = %x\n", ev->type);
		    break;
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		}
		if (toSend != 0) {
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                    TRACE("Sending event %08x (from %d %d)\n", toSend, ev->source.client, ev->source.port);
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		    MIDI_NotifyClient(wDevID, MIM_DATA, toSend, dwTime);
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		}
	    }
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	    snd_seq_free_event(ev);
	} while(snd_seq_event_input_pending(midiSeq, 0) > 0);
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	HeapFree(GetProcessHeap(), 0, pfd);
    }
    return 0;
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}

/**************************************************************************
 * 				midGetDevCaps			[internal]
 */
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static DWORD midGetDevCaps(WORD wDevID, LPMIDIINCAPSW lpCaps, DWORD dwSize)
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{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpCaps, dwSize);
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    if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (lpCaps == NULL)		return MMSYSERR_INVALPARAM;

    memcpy(lpCaps, &MidiInDev[wDevID].caps, min(dwSize, sizeof(*lpCaps)));

    return MMSYSERR_NOERROR;
}


/**************************************************************************
 * 			midOpen					[internal]
 */
static DWORD midOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpDesc, dwFlags);
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    if (lpDesc == NULL) {
	WARN("Invalid Parameter !\n");
	return MMSYSERR_INVALPARAM;
    }

    /* FIXME :
     *	how to check that content of lpDesc is correct ?
     */
    if (wDevID >= MIDM_NumDevs) {
	WARN("wDevID too large (%u) !\n", wDevID);
	return MMSYSERR_BADDEVICEID;
    }
    if (MidiInDev[wDevID].state == -1) {        
        WARN("device disabled\n");
        return MIDIERR_NODEVICE;
    }
    if (MidiInDev[wDevID].midiDesc.hMidi != 0) {
	WARN("device already open !\n");
	return MMSYSERR_ALLOCATED;
    }
    if ((dwFlags & MIDI_IO_STATUS) != 0) {
	WARN("No support for MIDI_IO_STATUS in dwFlags yet, ignoring it\n");
	dwFlags &= ~MIDI_IO_STATUS;
    }
    if ((dwFlags & ~CALLBACK_TYPEMASK) != 0) {
	FIXME("Bad dwFlags\n");
	return MMSYSERR_INVALFLAG;
    }

    if (midiOpenSeq(1) < 0) {
	return MMSYSERR_ERROR;
    }

    /* Connect our app port to the device port */
    if (snd_seq_connect_from(midiSeq, port_in, MidiInDev[wDevID].addr.client, MidiInDev[wDevID].addr.port) < 0)
	return MMSYSERR_NOTENABLED;

    TRACE("input port connected %d %d %d\n",port_in,MidiInDev[wDevID].addr.client,MidiInDev[wDevID].addr.port);

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    if (numStartedMidiIn++ == 0) {
	end_thread = 0;
	hThread = CreateThread(NULL, 0, midRecThread, NULL, 0, NULL);
	if (!hThread) {
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	    numStartedMidiIn = 0;
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	    WARN("Couldn't create thread for midi-in\n");
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	    midiCloseSeq();
	    return MMSYSERR_ERROR;
	}
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        SetThreadPriority(hThread, THREAD_PRIORITY_TIME_CRITICAL);
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	TRACE("Created thread for midi-in\n");
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    }

    MidiInDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);

    MidiInDev[wDevID].lpQueueHdr = NULL;
    MidiInDev[wDevID].dwTotalPlayed = 0;
    MidiInDev[wDevID].bufsize = 0x3FFF;
    MidiInDev[wDevID].midiDesc = *lpDesc;
    MidiInDev[wDevID].state = 0;
    MidiInDev[wDevID].incLen = 0;
    MidiInDev[wDevID].startTime = 0;

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    MIDI_NotifyClient(wDevID, MIM_OPEN, 0L, 0L);
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    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			midClose				[internal]
 */
static DWORD midClose(WORD wDevID)
{
    int		ret = MMSYSERR_NOERROR;

    TRACE("(%04X);\n", wDevID);

    if (wDevID >= MIDM_NumDevs) {
	WARN("wDevID too big (%u) !\n", wDevID);
	return MMSYSERR_BADDEVICEID;
    }
    if (MidiInDev[wDevID].midiDesc.hMidi == 0) {
	WARN("device not opened !\n");
	return MMSYSERR_ERROR;
    }
    if (MidiInDev[wDevID].lpQueueHdr != 0) {
	return MIDIERR_STILLPLAYING;
    }

    if (midiSeq == NULL) {
	WARN("ooops !\n");
	return MMSYSERR_ERROR;
    }
    if (--numStartedMidiIn == 0) {
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	TRACE("Stopping thread for midi-in\n");
	end_thread = 1;
	if (WaitForSingleObject(hThread, 5000) != WAIT_OBJECT_0) {
	    WARN("Thread end not signaled, force termination\n");
	    TerminateThread(hThread, 0);
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	}
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    	TRACE("Stopped thread for midi-in\n");
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    }

    snd_seq_disconnect_from(midiSeq, port_in, MidiInDev[wDevID].addr.client, MidiInDev[wDevID].addr.port);
    midiCloseSeq();

    MidiInDev[wDevID].bufsize = 0;
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    MIDI_NotifyClient(wDevID, MIM_CLOSE, 0L, 0L);
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    MidiInDev[wDevID].midiDesc.hMidi = 0;

    return ret;
}


/**************************************************************************
 * 				midAddBuffer			[internal]
 */
static DWORD midAddBuffer(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
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    if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;

    if (lpMidiHdr == NULL)	return MMSYSERR_INVALPARAM;
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    if (dwSize < offsetof(MIDIHDR,dwOffset)) return MMSYSERR_INVALPARAM;
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    if (lpMidiHdr->dwBufferLength == 0) return MMSYSERR_INVALPARAM;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE) return MIDIERR_STILLPLAYING;
    if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) return MIDIERR_UNPREPARED;

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    EnterCriticalSection(&crit_sect);
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    lpMidiHdr->dwFlags &= ~WHDR_DONE;
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    lpMidiHdr->dwFlags |= MHDR_INQUEUE;
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    lpMidiHdr->dwBytesRecorded = 0;
    lpMidiHdr->lpNext = 0;
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    if (MidiInDev[wDevID].lpQueueHdr == 0) {
	MidiInDev[wDevID].lpQueueHdr = lpMidiHdr;
    } else {
	LPMIDIHDR	ptr;

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        for (ptr = MidiInDev[wDevID].lpQueueHdr; ptr->lpNext != 0;
             ptr = ptr->lpNext);
        ptr->lpNext = lpMidiHdr;
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    }
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    LeaveCriticalSection(&crit_sect);

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    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				midPrepare			[internal]
 */
static DWORD midPrepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
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    if (dwSize < offsetof(MIDIHDR,dwOffset) || lpMidiHdr == 0 ||
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	lpMidiHdr->lpData == 0 || (lpMidiHdr->dwFlags & MHDR_INQUEUE) != 0)
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	return MMSYSERR_INVALPARAM;

    lpMidiHdr->lpNext = 0;
    lpMidiHdr->dwFlags |= MHDR_PREPARED;
    lpMidiHdr->dwBytesRecorded = 0;

    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				midUnprepare			[internal]
 */
static DWORD midUnprepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
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    if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;

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    if (dwSize < offsetof(MIDIHDR,dwOffset) || lpMidiHdr == 0 ||
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	lpMidiHdr->lpData == 0)
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	return MMSYSERR_INVALPARAM;

    if (!(lpMidiHdr->dwFlags & MHDR_PREPARED)) return MIDIERR_UNPREPARED;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE) return MIDIERR_STILLPLAYING;

    lpMidiHdr->dwFlags &= ~MHDR_PREPARED;

    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			midReset				[internal]
 */
static DWORD midReset(WORD wDevID)
{
    DWORD		dwTime = GetTickCount();

    TRACE("(%04X);\n", wDevID);

    if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;

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    EnterCriticalSection(&crit_sect);
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    while (MidiInDev[wDevID].lpQueueHdr) {
	MidiInDev[wDevID].lpQueueHdr->dwFlags &= ~MHDR_INQUEUE;
	MidiInDev[wDevID].lpQueueHdr->dwFlags |= MHDR_DONE;
	/* FIXME: when called from 16 bit, lpQueueHdr needs to be a segmented ptr */
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	MIDI_NotifyClient(wDevID, MIM_LONGDATA,
			  (DWORD_PTR)MidiInDev[wDevID].lpQueueHdr, dwTime);
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        MidiInDev[wDevID].lpQueueHdr = MidiInDev[wDevID].lpQueueHdr->lpNext;
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    }
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    LeaveCriticalSection(&crit_sect);
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    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			midStart				[internal]
 */
static DWORD midStart(WORD wDevID)
{
    TRACE("(%04X);\n", wDevID);

    if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;

    MidiInDev[wDevID].state = 1;
    MidiInDev[wDevID].startTime = GetTickCount();
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 *			midStop					[internal]
 */
static DWORD midStop(WORD wDevID)
{
    TRACE("(%04X);\n", wDevID);

    if (wDevID >= MIDM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (MidiInDev[wDevID].state == -1) return MIDIERR_NODEVICE;

    MidiInDev[wDevID].state = 0;
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				modGetDevCaps			[internal]
 */
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static DWORD modGetDevCaps(WORD wDevID, LPMIDIOUTCAPSW lpCaps, DWORD dwSize)
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{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpCaps, dwSize);
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    if (wDevID >= MODM_NumDevs)	return MMSYSERR_BADDEVICEID;
    if (lpCaps == NULL) 	return MMSYSERR_INVALPARAM;

    memcpy(lpCaps, &MidiOutDev[wDevID].caps, min(dwSize, sizeof(*lpCaps)));

    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			modOpen					[internal]
 */
static DWORD modOpen(WORD wDevID, LPMIDIOPENDESC lpDesc, DWORD dwFlags)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpDesc, dwFlags);
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    if (lpDesc == NULL) {
	WARN("Invalid Parameter !\n");
	return MMSYSERR_INVALPARAM;
    }
    if (wDevID >= MODM_NumDevs) {
	TRACE("MAX_MIDIOUTDRV reached !\n");
	return MMSYSERR_BADDEVICEID;
    }
    if (MidiOutDev[wDevID].midiDesc.hMidi != 0) {
	WARN("device already open !\n");
	return MMSYSERR_ALLOCATED;
    }
    if (!MidiOutDev[wDevID].bEnabled) {
	WARN("device disabled !\n");
	return MIDIERR_NODEVICE;
    }
    if ((dwFlags & ~CALLBACK_TYPEMASK) != 0) {
	WARN("bad dwFlags\n");
	return MMSYSERR_INVALFLAG;
    }
    if (!MidiOutDev[wDevID].bEnabled) {
	TRACE("disabled wDevID\n");
	return MMSYSERR_NOTENABLED;
    }

    MidiOutDev[wDevID].lpExtra = 0;

    switch (MidiOutDev[wDevID].caps.wTechnology) {
    case MOD_FMSYNTH:
    case MOD_MIDIPORT:
    case MOD_SYNTH:
	if (midiOpenSeq(1) < 0) {
	    return MMSYSERR_ALLOCATED;
	}
	break;
    default:
	WARN("Technology not supported (yet) %d !\n",
	     MidiOutDev[wDevID].caps.wTechnology);
	return MMSYSERR_NOTENABLED;
    }

    MidiOutDev[wDevID].wFlags = HIWORD(dwFlags & CALLBACK_TYPEMASK);

    MidiOutDev[wDevID].lpQueueHdr = NULL;
    MidiOutDev[wDevID].dwTotalPlayed = 0;
    MidiOutDev[wDevID].bufsize = 0x3FFF;
    MidiOutDev[wDevID].midiDesc = *lpDesc;

    /* Connect our app port to the device port */
    if (snd_seq_connect_to(midiSeq, port_out, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port) < 0)
	return MMSYSERR_NOTENABLED;
    
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    MIDI_NotifyClient(wDevID, MOM_OPEN, 0L, 0L);
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    TRACE("Successful !\n");
    return MMSYSERR_NOERROR;
}


/**************************************************************************
 * 			modClose				[internal]
 */
static DWORD modClose(WORD wDevID)
{
    int	ret = MMSYSERR_NOERROR;

    TRACE("(%04X);\n", wDevID);

    if (MidiOutDev[wDevID].midiDesc.hMidi == 0) {
	WARN("device not opened !\n");
	return MMSYSERR_ERROR;
    }
    /* FIXME: should test that no pending buffer is still in the queue for
     * playing */

    if (midiSeq == NULL) {
	WARN("can't close !\n");
	return MMSYSERR_ERROR;
    }

    switch (MidiOutDev[wDevID].caps.wTechnology) {
    case MOD_FMSYNTH:
    case MOD_MIDIPORT:
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    case MOD_SYNTH:
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        snd_seq_disconnect_to(midiSeq, port_out, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
	midiCloseSeq();
	break;
    default:
	WARN("Technology not supported (yet) %d !\n",
	     MidiOutDev[wDevID].caps.wTechnology);
	return MMSYSERR_NOTENABLED;
    }

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    HeapFree(GetProcessHeap(), 0, MidiOutDev[wDevID].lpExtra);
    MidiOutDev[wDevID].lpExtra = 0;
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    MidiOutDev[wDevID].bufsize = 0;
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    MIDI_NotifyClient(wDevID, MOM_CLOSE, 0L, 0L);
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    MidiOutDev[wDevID].midiDesc.hMidi = 0;
    return ret;
}

/**************************************************************************
 * 			modData					[internal]
 */
static DWORD modData(WORD wDevID, DWORD dwParam)
{
    BYTE	evt = LOBYTE(LOWORD(dwParam));
    BYTE	d1  = HIBYTE(LOWORD(dwParam));
    BYTE	d2  = LOBYTE(HIWORD(dwParam));
    
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    TRACE("(%04X, %08X);\n", wDevID, dwParam);
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    if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;

    if (midiSeq == NULL) {
	WARN("can't play !\n");
	return MIDIERR_NODEVICE;
    }
    switch (MidiOutDev[wDevID].caps.wTechnology) {
    case MOD_SYNTH:
    case MOD_MIDIPORT:
	{
	    int handled = 1; /* Assume event is handled */
            snd_seq_event_t event;
            snd_seq_ev_clear(&event);
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            snd_seq_ev_set_direct(&event);
            snd_seq_ev_set_source(&event, port_out);
            snd_seq_ev_set_dest(&event, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
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	    switch (evt & 0xF0) {
	    case MIDI_CMD_NOTE_OFF:
		snd_seq_ev_set_noteoff(&event, evt&0x0F, d1, d2);
		break;
	    case MIDI_CMD_NOTE_ON:
		snd_seq_ev_set_noteon(&event, evt&0x0F, d1, d2);
		break;
	    case MIDI_CMD_NOTE_PRESSURE:
		snd_seq_ev_set_keypress(&event, evt&0x0F, d1, d2);
		break;
	    case MIDI_CMD_CONTROL:
		snd_seq_ev_set_controller(&event, evt&0x0F, d1, d2);
		break;
	    case MIDI_CMD_BENDER:
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		snd_seq_ev_set_pitchbend(&event, evt&0x0F, ((WORD)d2 << 7 | (WORD)d1) - 0x2000);
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		break;
	    case MIDI_CMD_PGM_CHANGE:
		snd_seq_ev_set_pgmchange(&event, evt&0x0F, d1);
		break;
	    case MIDI_CMD_CHANNEL_PRESSURE:
		snd_seq_ev_set_chanpress(&event, evt&0x0F, d1);
		break;
	    case MIDI_CMD_COMMON_SYSEX:
		switch (evt & 0x0F) {
		case 0x00:	/* System Exclusive, don't do it on modData,
				 * should require modLongData*/
		case 0x04:	/* Undefined. */
		case 0x05:	/* Undefined. */
		case 0x07:	/* End of Exclusive. */
		case 0x09:	/* Undefined. */
		case 0x0D:	/* Undefined. */
		    handled = 0;
		    break;
		case 0x06:	/* Tune Request */
		case 0x08:	/* Timing Clock. */
		case 0x0A:	/* Start. */
		case 0x0B:	/* Continue */
		case 0x0C:	/* Stop */
		case 0x0E: 	/* Active Sensing. */
		    /* FIXME: Is this function suitable for these purposes
		       (and also Song Select and Song Position Pointer) */
	            snd_seq_ev_set_sysex(&event, 1, &evt);
		    break;
		case 0x0F: 	/* Reset */
				/* snd_seq_ev_set_sysex(&event, 1, &evt);
				   this other way may be better */
		    {
			BYTE reset_sysex_seq[] = {MIDI_CMD_COMMON_SYSEX, 0x7e, 0x7f, 0x09, 0x01, 0xf7};
			snd_seq_ev_set_sysex(&event, sizeof(reset_sysex_seq), reset_sysex_seq);
		    }
		    break;
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		case 0x01:	/* MTC Quarter frame */
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		case 0x03:	/* Song Select. */
		    {
			BYTE buf[2];
			buf[0] = evt;
			buf[1] = d1;
			snd_seq_ev_set_sysex(&event, sizeof(buf), buf);
	            }
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	            break;
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		case 0x02:	/* Song Position Pointer. */
		    {
			BYTE buf[3];
			buf[0] = evt;
			buf[1] = d1;
			buf[2] = d2;
			snd_seq_ev_set_sysex(&event, sizeof(buf), buf);
	            }
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		    break;
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		}
		break;
	    }
	    if (handled)
                snd_seq_event_output_direct(midiSeq, &event);
	}
	break;
    default:
	WARN("Technology not supported (yet) %d !\n",
	     MidiOutDev[wDevID].caps.wTechnology);
	return MMSYSERR_NOTENABLED;
    }

    return MMSYSERR_NOERROR;
}

/**************************************************************************
 *		modLongData					[internal]
 */
static DWORD modLongData(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
    int		len_add = 0;
    LPBYTE	lpData, lpNewData = NULL;
    snd_seq_event_t event;

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    TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
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    /* Note: MS doc does not say much about the dwBytesRecorded member of the MIDIHDR structure
     * but it seems to be used only for midi input.
     * Taking a look at the WAVEHDR structure (which is quite similar) confirms this assumption.
     */
    
    if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;

    if (midiSeq == NULL) {
	WARN("can't play !\n");
	return MIDIERR_NODEVICE;
    }

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    lpData = (LPBYTE) lpMidiHdr->lpData;
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    if (lpData == NULL)
	return MIDIERR_UNPREPARED;
    if (!(lpMidiHdr->dwFlags & MHDR_PREPARED))
	return MIDIERR_UNPREPARED;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
	return MIDIERR_STILLPLAYING;
    lpMidiHdr->dwFlags &= ~MHDR_DONE;
    lpMidiHdr->dwFlags |= MHDR_INQUEUE;

    /* FIXME: MS doc is not 100% clear. Will lpData only contain system exclusive
     * data, or can it also contain raw MIDI data, to be split up and sent to
     * modShortData() ?
     * If the latest is true, then the following WARNing will fire up
     */
    if (lpData[0] != 0xF0 || lpData[lpMidiHdr->dwBufferLength - 1] != 0xF7) {
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	WARN("Alleged system exclusive buffer is not correct\n\tPlease report with MIDI file\n");
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	lpNewData = HeapAlloc(GetProcessHeap(), 0, lpMidiHdr->dwBufferLength + 2);
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    }

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    TRACE("dwBufferLength=%u !\n", lpMidiHdr->dwBufferLength);
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    TRACE("                 %02X %02X %02X ... %02X %02X %02X\n",
	  lpData[0], lpData[1], lpData[2], lpData[lpMidiHdr->dwBufferLength-3],
	  lpData[lpMidiHdr->dwBufferLength-2], lpData[lpMidiHdr->dwBufferLength-1]);

    switch (MidiOutDev[wDevID].caps.wTechnology) {
    case MOD_FMSYNTH:
	/* FIXME: I don't think there is much to do here */
	break;
    case MOD_MIDIPORT:
	if (lpData[0] != 0xF0) {
	    /* Send start of System Exclusive */
	    len_add = 1;
	    lpData[0] = 0xF0;
	    memcpy(lpNewData, lpData, lpMidiHdr->dwBufferLength);
	    WARN("Adding missing 0xF0 marker at the beginning of "
		 "system exclusive byte stream\n");
	}
	if (lpData[lpMidiHdr->dwBufferLength-1] != 0xF7) {
	    /* Send end of System Exclusive */
	    memcpy(lpData + len_add, lpData, lpMidiHdr->dwBufferLength);
            lpNewData[lpMidiHdr->dwBufferLength + len_add - 1] = 0xF0;
	    len_add++;
	    WARN("Adding missing 0xF7 marker at the end of "
		 "system exclusive byte stream\n");
	}
	snd_seq_ev_clear(&event);
	snd_seq_ev_set_direct(&event);
	snd_seq_ev_set_source(&event, port_out);
	snd_seq_ev_set_dest(&event, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
	TRACE("client = %d port = %d\n", MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
	snd_seq_ev_set_sysex(&event, lpMidiHdr->dwBufferLength + len_add, lpNewData ? lpNewData : lpData);
	snd_seq_event_output_direct(midiSeq, &event);
	if (lpNewData)
		HeapFree(GetProcessHeap(), 0, lpData);
	break;
    default:
	WARN("Technology not supported (yet) %d !\n",
	     MidiOutDev[wDevID].caps.wTechnology);
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	HeapFree(GetProcessHeap(), 0, lpNewData);
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	return MMSYSERR_NOTENABLED;
    }

    lpMidiHdr->dwFlags &= ~MHDR_INQUEUE;
    lpMidiHdr->dwFlags |= MHDR_DONE;
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    MIDI_NotifyClient(wDevID, MOM_DONE, (DWORD_PTR)lpMidiHdr, 0L);
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    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 			modPrepare				[internal]
 */
static DWORD modPrepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
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    if (midiSeq == NULL) {
	WARN("can't prepare !\n");
	return MMSYSERR_NOTENABLED;
    }

    /* MS doc says that dwFlags must be set to zero, but (kinda funny) MS mciseq drivers
     * asks to prepare MIDIHDR which dwFlags != 0.
     * So at least check for the inqueue flag
     */
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    if (dwSize < offsetof(MIDIHDR,dwOffset) || lpMidiHdr == 0 ||
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	lpMidiHdr->lpData == 0 || (lpMidiHdr->dwFlags & MHDR_INQUEUE) != 0) {
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	WARN("%p %p %08x %d\n", lpMidiHdr, lpMidiHdr ? lpMidiHdr->lpData : NULL,
             lpMidiHdr ? lpMidiHdr->dwFlags : 0, dwSize);
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	return MMSYSERR_INVALPARAM;
    }

    lpMidiHdr->lpNext = 0;
    lpMidiHdr->dwFlags |= MHDR_PREPARED;
    lpMidiHdr->dwFlags &= ~MHDR_DONE;
    return MMSYSERR_NOERROR;
}

/**************************************************************************
 * 				modUnprepare			[internal]
 */
static DWORD modUnprepare(WORD wDevID, LPMIDIHDR lpMidiHdr, DWORD dwSize)
{
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    TRACE("(%04X, %p, %08X);\n", wDevID, lpMidiHdr, dwSize);
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    if (midiSeq == NULL) {
	WARN("can't unprepare !\n");
	return MMSYSERR_NOTENABLED;
    }

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    if (dwSize < offsetof(MIDIHDR,dwOffset) || lpMidiHdr == 0)
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	return MMSYSERR_INVALPARAM;
    if (lpMidiHdr->dwFlags & MHDR_INQUEUE)
	return MIDIERR_STILLPLAYING;
    lpMidiHdr->dwFlags &= ~MHDR_PREPARED;
    return MMSYSERR_NOERROR;
}

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/**************************************************************************
 * 			modGetVolume				[internal]
 */
static DWORD modGetVolume(WORD wDevID, DWORD* lpdwVolume)
{
    if (!lpdwVolume) return MMSYSERR_INVALPARAM;
    if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
    *lpdwVolume = 0xFFFFFFFF;
    return (MidiOutDev[wDevID].caps.dwSupport & MIDICAPS_VOLUME) ? 0 : MMSYSERR_NOTSUPPORTED;
}

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/**************************************************************************
 * 			modReset				[internal]
 */
static DWORD modReset(WORD wDevID)
{
    unsigned chn;

    TRACE("(%04X);\n", wDevID);

    if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
    if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;

    /* stop all notes */
    /* FIXME: check if 0x78B0 is channel dependent or not. I coded it so that
     * it's channel dependent...
     */
    for (chn = 0; chn < 16; chn++) {
	/* turn off every note */
	modData(wDevID, 0x7800 | MIDI_CMD_CONTROL | chn);
	/* remove sustain on all channels */
	modData(wDevID, (MIDI_CTL_SUSTAIN << 8) | MIDI_CMD_CONTROL | chn);
    }
    /* FIXME: the LongData buffers must also be returned to the app */
    return MMSYSERR_NOERROR;
}

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/**************************************************************************
 *                      ALSA_AddMidiPort			[internal]
 *
 * Helper for ALSA_MidiInit
 */
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static void ALSA_AddMidiPort(snd_seq_client_info_t* cinfo, snd_seq_port_info_t* pinfo, unsigned int cap, unsigned int type)
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{
1117 1118
    char midiPortName[MAXPNAMELEN];

1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131
    if (cap & SND_SEQ_PORT_CAP_WRITE) {
	TRACE("OUT (%d:%s:%s:%d:%s:%x)\n",snd_seq_client_info_get_client(cinfo),
					  snd_seq_client_info_get_name(cinfo),
					  snd_seq_client_info_get_type(cinfo) == SND_SEQ_USER_CLIENT ? "user" : "kernel",
					  snd_seq_port_info_get_port(pinfo),
					  snd_seq_port_info_get_name(pinfo),
					  type);
		
	if (MODM_NumDevs >= MAX_MIDIOUTDRV)
	    return;
	if (!type)
            return;

1132 1133
	MidiOutDev[MODM_NumDevs].addr = *snd_seq_port_info_get_addr(pinfo);

1134 1135 1136 1137 1138 1139 1140 1141
	/* Manufac ID. We do not have access to this with soundcard.h
	 * Does not seem to be a problem, because in mmsystem.h only
	 * Microsoft's ID is listed.
	 */
	MidiOutDev[MODM_NumDevs].caps.wMid = 0x00FF;
	MidiOutDev[MODM_NumDevs].caps.wPid = 0x0001; 	/* FIXME Product ID  */
	/* Product Version. We simply say "1" */
	MidiOutDev[MODM_NumDevs].caps.vDriverVersion = 0x001;
1142
	/* The following are mandatory for MOD_MIDIPORT */
1143
	MidiOutDev[MODM_NumDevs].caps.wChannelMask   = 0xFFFF;
1144 1145 1146
	MidiOutDev[MODM_NumDevs].caps.wVoices        = 0;
	MidiOutDev[MODM_NumDevs].caps.wNotes         = 0;
	MidiOutDev[MODM_NumDevs].caps.dwSupport      = 0;
1147 1148 1149 1150 1151 1152 1153

	/* Try to use both client and port names, if this is too long take the port name only.
           In the second case the port name should be explicit enough due to its big size.
	 */
	if ( (strlen(snd_seq_client_info_get_name(cinfo)) + strlen(snd_seq_port_info_get_name(pinfo)) + 3) < MAXPNAMELEN ) {
	    sprintf(midiPortName, "%s - %s", snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo));
	} else {
1154
	    lstrcpynA(midiPortName, snd_seq_port_info_get_name(pinfo), MAXPNAMELEN);
1155
	}
1156
	MultiByteToWideChar(CP_UNIXCP, 0, midiPortName, -1,
1157 1158
                            MidiOutDev[MODM_NumDevs].caps.szPname,
                            sizeof(MidiOutDev[MODM_NumDevs].caps.szPname) / sizeof(WCHAR));
1159 1160

	MidiOutDev[MODM_NumDevs].caps.wTechnology = MIDI_AlsaToWindowsDeviceType(type);
1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177

	if (MOD_MIDIPORT != MidiOutDev[MODM_NumDevs].caps.wTechnology) {
	    /* FIXME Do we have this information?
	     * Assuming the soundcards can handle
	     * MIDICAPS_VOLUME and MIDICAPS_LRVOLUME but
	     * not MIDICAPS_CACHE.
	     */
	    MidiOutDev[MODM_NumDevs].caps.dwSupport = MIDICAPS_VOLUME|MIDICAPS_LRVOLUME;
	    MidiOutDev[MODM_NumDevs].caps.wVoices   = 16;

            /* FIXME Is it possible to know the maximum
             * number of simultaneous notes of a soundcard ?
             * I believe we don't have this information, but
             * it's probably equal or more than wVoices
             */
	    MidiOutDev[MODM_NumDevs].caps.wNotes    = 16;
	}
1178 1179
	MidiOutDev[MODM_NumDevs].bEnabled    = TRUE;

1180
	TRACE("MidiOut[%d]\tname='%s' techn=%d voices=%d notes=%d chnMsk=%04x support=%d\n"
1181
            "\tALSA info: midi dev-type=%x, capa=0\n",
1182 1183 1184 1185
              MODM_NumDevs, wine_dbgstr_w(MidiOutDev[MODM_NumDevs].caps.szPname),
              MidiOutDev[MODM_NumDevs].caps.wTechnology,
              MidiOutDev[MODM_NumDevs].caps.wVoices, MidiOutDev[MODM_NumDevs].caps.wNotes,
              MidiOutDev[MODM_NumDevs].caps.wChannelMask, MidiOutDev[MODM_NumDevs].caps.dwSupport,
1186
              type);
1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202
		
	MODM_NumDevs++;
    }
    if (cap & SND_SEQ_PORT_CAP_READ) {
        TRACE("IN  (%d:%s:%s:%d:%s:%x)\n",snd_seq_client_info_get_client(cinfo),
			                  snd_seq_client_info_get_name(cinfo),
					  snd_seq_client_info_get_type(cinfo) == SND_SEQ_USER_CLIENT ? "user" : "kernel",
					  snd_seq_port_info_get_port(pinfo),
					  snd_seq_port_info_get_name(pinfo),
					  type);
		
	if (MIDM_NumDevs >= MAX_MIDIINDRV)
	    return;
	if (!type)
	    return;

1203 1204
	MidiInDev[MIDM_NumDevs].addr = *snd_seq_port_info_get_addr(pinfo);

1205 1206 1207 1208 1209 1210 1211 1212
	/* Manufac ID. We do not have access to this with soundcard.h
	 * Does not seem to be a problem, because in mmsystem.h only
	 * Microsoft's ID is listed.
	 */
	MidiInDev[MIDM_NumDevs].caps.wMid = 0x00FF;
	MidiInDev[MIDM_NumDevs].caps.wPid = 0x0001; 	/* FIXME Product ID  */
	/* Product Version. We simply say "1" */
	MidiInDev[MIDM_NumDevs].caps.vDriverVersion = 0x001;
1213
	MidiInDev[MIDM_NumDevs].caps.dwSupport = 0; /* mandatory with MIDIINCAPS */
1214 1215 1216 1217 1218 1219 1220

	/* Try to use both client and port names, if this is too long take the port name only.
           In the second case the port name should be explicit enough due to its big size.
	 */
	if ( (strlen(snd_seq_client_info_get_name(cinfo)) + strlen(snd_seq_port_info_get_name(pinfo)) + 3) < MAXPNAMELEN ) {
	    sprintf(midiPortName, "%s - %s", snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo));
	} else {
1221
	    lstrcpynA(midiPortName, snd_seq_port_info_get_name(pinfo), MAXPNAMELEN);
1222
        }
1223
	MultiByteToWideChar(CP_UNIXCP, 0, midiPortName, -1,
1224 1225
                            MidiInDev[MIDM_NumDevs].caps.szPname,
                            sizeof(MidiInDev[MIDM_NumDevs].caps.szPname) / sizeof(WCHAR));
1226 1227
	MidiInDev[MIDM_NumDevs].state = 0;

1228
	TRACE("MidiIn [%d]\tname='%s' support=%d\n"
1229
              "\tALSA info: midi dev-type=%x, capa=0\n",
1230 1231
              MIDM_NumDevs, wine_dbgstr_w(MidiInDev[MIDM_NumDevs].caps.szPname),
              MidiInDev[MIDM_NumDevs].caps.dwSupport,
1232
              type);
1233 1234 1235 1236 1237

	MIDM_NumDevs++;
    }
}

1238 1239 1240 1241 1242

/*======================================================================*
 *                  	    MIDI entry points 				*
 *======================================================================*/

1243 1244 1245 1246 1247
/**************************************************************************
 * ALSA_MidiInit				[internal]
 *
 * Initializes the MIDI devices information variables
 */
1248
static LONG ALSA_MidiInit(void)
1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267
{
    static	BOOL	bInitDone = FALSE;
    snd_seq_client_info_t *cinfo;
    snd_seq_port_info_t *pinfo;

    if (bInitDone)
	return TRUE;

    TRACE("Initializing the MIDI variables.\n");
    bInitDone = TRUE;

    /* try to open device */
    if (midiOpenSeq(0) == -1) {
	return TRUE;
    }

#if 0 /* Debug purpose */
    snd_lib_error_set_handler(error_handler);
#endif
1268 1269
    cinfo = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_seq_client_info_sizeof() );
    pinfo = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, snd_seq_port_info_sizeof() );
1270 1271

    /* First, search for all internal midi devices */
1272 1273 1274 1275 1276
    snd_seq_client_info_set_client(cinfo, -1);
    while(snd_seq_query_next_client(midiSeq, cinfo) >= 0) {
        snd_seq_port_info_set_client(pinfo, snd_seq_client_info_get_client(cinfo));
	snd_seq_port_info_set_port(pinfo, -1);
	while (snd_seq_query_next_port(midiSeq, pinfo) >= 0) {
1277 1278
	    unsigned int cap = snd_seq_port_info_get_capability(pinfo);
	    unsigned int type = snd_seq_port_info_get_type(pinfo);
1279
	    if (!(type & SND_SEQ_PORT_TYPE_PORT))
1280 1281 1282
	        ALSA_AddMidiPort(cinfo, pinfo, cap, type);
	}
    }
1283

1284 1285 1286 1287 1288 1289
    /* Second, search for all external ports */
    snd_seq_client_info_set_client(cinfo, -1);
    while(snd_seq_query_next_client(midiSeq, cinfo) >= 0) {
        snd_seq_port_info_set_client(pinfo, snd_seq_client_info_get_client(cinfo));
	snd_seq_port_info_set_port(pinfo, -1);
	while (snd_seq_query_next_port(midiSeq, pinfo) >= 0) {
1290 1291
	    unsigned int cap = snd_seq_port_info_get_capability(pinfo);
	    unsigned int type = snd_seq_port_info_get_type(pinfo);
1292
	    if (type & SND_SEQ_PORT_TYPE_PORT)
1293
	        ALSA_AddMidiPort(cinfo, pinfo, cap, type);
1294 1295 1296 1297 1298
	}
    }

    /* close file and exit */
    midiCloseSeq();
1299 1300
    HeapFree( GetProcessHeap(), 0, cinfo );
    HeapFree( GetProcessHeap(), 0, pinfo );
1301 1302 1303 1304 1305

    TRACE("End\n");
    return TRUE;
}

1306
/**************************************************************************
1307
 * 			midMessage (WINEALSA.@)
1308
 */
1309 1310
DWORD WINAPI ALSA_midMessage(UINT wDevID, UINT wMsg, DWORD_PTR dwUser,
			    DWORD_PTR dwParam1, DWORD_PTR dwParam2)
1311
{
1312
    TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n",
1313 1314 1315
	  wDevID, wMsg, dwUser, dwParam1, dwParam2);
    switch (wMsg) {
    case DRVM_INIT:
1316
        ALSA_MidiInit();
1317
        return 0;
1318
    case DRVM_EXIT:
1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333
    case DRVM_ENABLE:
    case DRVM_DISABLE:
	/* FIXME: Pretend this is supported */
	return 0;
    case MIDM_OPEN:
	return midOpen(wDevID, (LPMIDIOPENDESC)dwParam1, dwParam2);
    case MIDM_CLOSE:
	return midClose(wDevID);
    case MIDM_ADDBUFFER:
	return midAddBuffer(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MIDM_PREPARE:
	return midPrepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MIDM_UNPREPARE:
	return midUnprepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MIDM_GETDEVCAPS:
1334
	return midGetDevCaps(wDevID, (LPMIDIINCAPSW)dwParam1,dwParam2);
1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
    case MIDM_GETNUMDEVS:
	return MIDM_NumDevs;
    case MIDM_RESET:
	return midReset(wDevID);
    case MIDM_START:
	return midStart(wDevID);
    case MIDM_STOP:
	return midStop(wDevID);
    default:
	TRACE("Unsupported message\n");
    }
    return MMSYSERR_NOTSUPPORTED;
}

/**************************************************************************
1350
 * 				modMessage (WINEALSA.@)
1351
 */
1352 1353
DWORD WINAPI ALSA_modMessage(UINT wDevID, UINT wMsg, DWORD_PTR dwUser,
                             DWORD_PTR dwParam1, DWORD_PTR dwParam2)
1354
{
1355
    TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n",
1356 1357 1358 1359
	  wDevID, wMsg, dwUser, dwParam1, dwParam2);

    switch (wMsg) {
    case DRVM_INIT:
1360
        ALSA_MidiInit();
1361
        return 0;
1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379
    case DRVM_EXIT:
    case DRVM_ENABLE:
    case DRVM_DISABLE:
	/* FIXME: Pretend this is supported */
	return 0;
    case MODM_OPEN:
	return modOpen(wDevID, (LPMIDIOPENDESC)dwParam1, dwParam2);
    case MODM_CLOSE:
	return modClose(wDevID);
    case MODM_DATA:
	return modData(wDevID, dwParam1);
    case MODM_LONGDATA:
	return modLongData(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MODM_PREPARE:
	return modPrepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MODM_UNPREPARE:
	return modUnprepare(wDevID, (LPMIDIHDR)dwParam1, dwParam2);
    case MODM_GETDEVCAPS:
1380
	return modGetDevCaps(wDevID, (LPMIDIOUTCAPSW)dwParam1, dwParam2);
1381 1382 1383
    case MODM_GETNUMDEVS:
	return MODM_NumDevs;
    case MODM_GETVOLUME:
1384
	return modGetVolume(wDevID, (DWORD*)dwParam1);
1385 1386 1387 1388 1389 1390 1391 1392 1393 1394
    case MODM_SETVOLUME:
	return 0;
    case MODM_RESET:
	return modReset(wDevID);
    default:
	TRACE("Unsupported message\n");
    }
    return MMSYSERR_NOTSUPPORTED;
}

1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420
/**************************************************************************
 * 				DriverProc (WINEALSA.@)
 */
LRESULT CALLBACK ALSA_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
                                 LPARAM dwParam1, LPARAM dwParam2)
{
/* EPP     TRACE("(%08lX, %04X, %08lX, %08lX, %08lX)\n",  */
/* EPP 	  dwDevID, hDriv, wMsg, dwParam1, dwParam2); */

    switch(wMsg) {
    case DRV_LOAD:
    case DRV_FREE:
    case DRV_OPEN:
    case DRV_CLOSE:
    case DRV_ENABLE:
    case DRV_DISABLE:
    case DRV_QUERYCONFIGURE:
    case DRV_CONFIGURE:
        return 1;
    case DRV_INSTALL:
    case DRV_REMOVE:
        return DRV_SUCCESS;
    default:
	return 0;
    }
}