Changeset 250 for trunk/src

Timestamp:

Oct 19, 2009, 9:12:20 PM (16 years ago)

Author:

Dmitry A. Kuminov

Message:

gui: Ported QSound to OS/2 using the MMPM backend.

Location:

trunk/src/gui/kernel

Files:

• qsound.cpp (modified) (5 diffs)
• qsound_p.h (modified) (1 diff)
• qsound_pm.cpp (modified) (1 diff)

trunk/src/gui/kernel/qsound.cpp

@@ -87 +87 @@
 public:
     QSoundPrivate(const QString& fname)
-        : filename(fname), bucket(0), looprem(0), looptotal(1)
+        : filename(fname), server(0), bucket(0), looprem(0), looptotal(1)
     {
     }
@@ -97 +97 @@
 
     QString filename;
+    QAuServer* server;
     QAuBucket* bucket;
     int looprem;
@@ -148 +149 @@
     \row
     \o Mac OS X
-    \o NSSound is used. All formats that NSSound supports, including QuickTime formats, 
+    \o NSSound is used. All formats that NSSound supports, including QuickTime formats,
     are supported by Qt for Mac OS X.
     \row
@@ -183 +184 @@
     : QObject(*new QSoundPrivate(filename), parent)
 {
-    server().init(this);
+    d_func()->server = &server();
+    d_func()->server->init(this);
 }
 
@@ -338 +340 @@
 
 /*!
+    Returns true if sound \a s was initialized using this server instance
+    and false otherwise.
+*/
+bool QAuServer::isRelevant(QSound* s)
+{
+    return s->d_func()->server == this;
+}
+
+/*!
     Sets the internal bucket record of sound \a s to \a b, deleting
     any previous setting.

trunk/src/gui/kernel/qsound_p.h

@@ -89 +89 @@
 
 protected:
+    bool isRelevant(QSound*);
     void setBucket(QSound*, QAuBucket*);
     QAuBucket* bucket(QSound*);

trunk/src/gui/kernel/qsound_pm.cpp

@@ -49 +49 @@
 #include "qapplication_p.h"
 #include <qfile.h>
-#include "qpointer.h"
 #include "qsound_p.h"
 
+#include "qlist.h"
+#include "qhash.h"
+#include "qlibrary.h"
+
 #include <qt_os2.h>
 
+#include <stdlib.h> // for getenv()
+
+#define QT_QSOUND_DEBUG
+
+// local QT_DEBUG override, must be placed *after* all includes
+#if defined(QT_QSOUND_DEBUG) && !defined(QT_DEBUG)
+#   define QT_DEBUG
+#endif
+
 QT_BEGIN_NAMESPACE
 
+////////////////////////////////////////////////////////////////////////////////
+
+//#define INCL_MCIOS2
+//#define INCL_MMIOOS2
+//#include <os2me.h>
+
+// The below definitions are stolen from the OS/2 Toolkit 4.5 headers
+// to avoid the requirement of having the Toolkit installed when building Qt
+// and let it directly link to mdm.dll and mmio.dll.
+
+typedef ULONG HMMIO;                  /* Handle to an MMIO object*/
+
+typedef ULONG  FOURCC;
+
+typedef LONG (APIENTRY MMIOPROC)                    /*  Format must       */
+                                (PVOID pmmioinfo,   /*  appear this       */
+                                 USHORT usMsg,      /*  way for h2inc     */
+                                 LONG lParam1,      /*  to work properly. */
+                                 LONG lParam2);
+
+typedef MMIOPROC FAR *PMMIOPROC;
+
+typedef struct _MMIOINFO {       /* mmioinfo                    */
+   ULONG       ulFlags;          /* Open flags                  */
+   FOURCC      fccIOProc;        /* FOURCC of the IOProc to use */
+   PMMIOPROC   pIOProc;          /* Function Pointer to IOProc to use */
+   ULONG       ulErrorRet;       /* Extended Error return code  */
+   LONG        cchBuffer;        /* I/O buff size (if used), Fsize if MEM */
+   PCHAR       pchBuffer;        /* Start of I/O buff           */
+   PCHAR       pchNext;          /* Next char to read or write in buff */
+   PCHAR       pchEndRead;       /* Last char in buff can be read + 1  */
+   PCHAR       pchEndWrite;      /* Last char in buff can be written + 1 */
+   LONG        lBufOffset;       /* Offset in buff to pchNext */
+   LONG        lDiskOffset;      /* Disk offset in file       */
+   ULONG       aulInfo[4];       /* IOProc specific fields    */
+   LONG        lLogicalFilePos;  /* Actual file position, buffered or not */
+   ULONG       ulTranslate;      /* Translation field         */
+   FOURCC      fccChildIOProc;   /* FOURCC of Child IOProc    */
+   PVOID       pExtraInfoStruct; /* Pointer to a structure of related data */
+   HMMIO       hmmio;            /* Handle to media element   */
+   } MMIOINFO;
+
+typedef MMIOINFO FAR *PMMIOINFO;
+
+typedef struct _WAVE_HEADER {                /* waveheader          */
+   USHORT          usFormatTag;              /* Type of wave format */
+   USHORT          usChannels;               /* Number of channels  */
+   ULONG           ulSamplesPerSec;          /* Sampling rate       */
+   ULONG           ulAvgBytesPerSec;         /* Avg bytes per sec   */
+   USHORT          usBlockAlign;             /* Block Alignment in bytes */
+   USHORT          usBitsPerSample;          /* Bits per sample     */
+   } WAVE_HEADER;
+
+typedef struct _XWAV_HEADERINFO {            /* xwaveheader info        */
+   ULONG           ulAudioLengthInMS;        /* Audio data in millisecs */
+   ULONG           ulAudioLengthInBytes;     /* Audio data in bytes     */
+   PVOID           pAdditionalInformation;
+   } XWAV_HEADERINFO;
+
+typedef struct _MMXWAV_HEADER {              /* mmxwaveheader            */
+   WAVE_HEADER     WAVEHeader;               /* Per RIFF WAVE Definition */
+   XWAV_HEADERINFO XWAVHeaderInfo;           /* Extended wave definition */
+   } MMXWAV_HEADER;
+
+typedef struct _MMAUDIOHEADER {              /* mmaudioheader   */
+   ULONG           ulHeaderLength;           /* Length in Bytes */
+   ULONG           ulContentType;            /* Image content   */
+   ULONG           ulMediaType;              /* Media Type      */
+   MMXWAV_HEADER   mmXWAVHeader;             /* header          */
+   } MMAUDIOHEADER;
+
+typedef MMAUDIOHEADER *PMMAUDIOHEADER;
+
+typedef struct _MCI_OPEN_PARMS
+{
+   HWND    hwndCallback;    /* PM window handle for MCI notify message */
+   USHORT  usDeviceID;      /* Device ID returned to user              */
+   USHORT  usReserved0;     /* Reserved                                */
+   PSZ     pszDeviceType;   /* Device name from SYSTEM.INI             */
+   PSZ     pszElementName;  /* Typically a file name or NULL           */
+   PSZ     pszAlias;        /* Optional device alias                   */
+} MCI_OPEN_PARMS;
+typedef MCI_OPEN_PARMS   *PMCI_OPEN_PARMS;
+
+typedef struct _MCI_PLAY_PARMS
+{
+   HWND    hwndCallback;    /* PM window handle for MCI notify message */
+   ULONG   ulFrom;          /* Play from this position                 */
+   ULONG   ulTo;            /* Play to this position                   */
+} MCI_PLAY_PARMS;
+typedef MCI_PLAY_PARMS   *PMCI_PLAY_PARMS;
+
+#define MMIO_TRANSLATEDATA       0x00000001L /* Translation */
+#define MMIO_TRANSLATEHEADER     0x00000002L /* Translation */
+
+#define MMIO_READ       0x00000004L       /* Open */
+
+#define MMIO_SUCCESS                    0L
+
+#define MMIO_MEDIATYPE_AUDIO        0x00000002L  /* Audio media */
+
+#define MCI_DEVTYPE_WAVEFORM_AUDIO      7
+
+#define MCI_NOTIFY                          0x00000001L
+#define MCI_WAIT                            0x00000002L
+#define MCI_FROM                            0x00000004L
+
+#define MCI_OPEN_TYPE_ID                    0x00001000L
+#define MCI_OPEN_SHAREABLE                  0x00002000L
+#define MCI_OPEN_MMIO                       0x00004000L
+#define MCI_READONLY                        0x00008000L
+
+#define MCI_RETURN_RESOURCE                 0x00000100L
+
+#define MCI_CLOSE_EXIT                 0x10000000L
+
+#define MCI_OPEN                        1
+#define MCI_CLOSE                       2
+#define MCI_PLAY                        4
+#define MCI_STOP                        6
+#define MCI_ACQUIREDEVICE               23
+#define MCI_RELEASEDEVICE               24
+
+#define MM_MCINOTIFY                        0x0500
+#define MM_MCIPASSDEVICE                    0x0501
+
+#define MCI_NOTIFY_SUCCESSFUL               0x0000
+#define MCI_NOTIFY_SUPERSEDED               0x0001
+
+#define MCI_LOSING_USE                      0x00000001L
+#define MCI_GAINING_USE                     0x00000002L
+
+#define MCIERR_BASE                      5000
+#define MCIERR_SUCCESS                   0
+#define MCIERR_INSTANCE_INACTIVE         (MCIERR_BASE + 34)
+#define MCIERR_DEVICE_LOCKED             (MCIERR_BASE + 32)
+
+// functions resolved by mmio.dll
+
+typedef
+USHORT (APIENTRY *mmioClose_T)(HMMIO hmmio,
+                               USHORT usFlags);
+typedef
+HMMIO (APIENTRY *mmioOpen_T)(PSZ pszFileName,
+                             PMMIOINFO pmmioinfo,
+                             ULONG ulOpenFlags);
+
+typedef
+ULONG (APIENTRY *mmioGetHeader_T)(HMMIO hmmio,
+                                  PVOID pHeader,
+                                  LONG lHeaderLength,
+                                  PLONG plBytesRead,
+                                  ULONG ulReserved,
+                                  ULONG ulFlags);
+
+static mmioClose_T mmioClose = 0;
+static mmioOpen_T mmioOpen = 0;
+static mmioGetHeader_T mmioGetHeader = 0;
+
+// functions resolved by mdm.dll
+
+typedef
+ULONG (APIENTRY *mciSendCommand_T)(USHORT   usDeviceID,
+                                   USHORT   usMessage,
+                                   ULONG    ulParam1,
+                                   PVOID    pParam2,
+                                   USHORT   usUserParm);
+
+static mciSendCommand_T mciSendCommand = 0;
+
+////////////////////////////////////////////////////////////////////////////////
+
+class QAuBucketMMPM;
+
+class QAuServerMMPM : public QAuServer {
+
+    Q_OBJECT
+
+public:
+
+    QAuServerMMPM(QObject* parent);
+    ~QAuServerMMPM();
+
+    void init(QSound *s);
+    void play(const QString &filename);
+    void play(QSound *s);
+    void stop(QSound *s);
+    bool okay();
+
+private slots:
+
+    void serverUninit();
+
+private:
+
+    HWND hwnd;
+    bool isOk;
+
+    QLibrary mdmLib;
+    QLibrary mmioLib;
+
+    QHash<int, QAuBucketMMPM *> bucketMap;
+    QList<QAuBucketMMPM *> bucketList;
+
+    static const char *ClassName;
+    static MRESULT EXPENTRY WindowProc(HWND hwnd, ULONG msg,
+                                       MPARAM mp1, MPARAM mp2);
+
+    friend class QAuBucketMMPM;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+class QAuBucketMMPM : public QAuBucket {
+
+public:
+
+    enum State { Stopped, Playing, Waiting };
+
+    QAuBucketMMPM(QAuServerMMPM *server, QSound *sound);
+    QAuBucketMMPM(QAuServerMMPM *server, const QString &soundFile);
+    ~QAuBucketMMPM();
+
+    void open();
+    void close(bool atExit = false);
+    bool play();
+    void stop();
+    bool okay() { return fileHandle != NULLHANDLE; }
+
+    QSound *sound() { return snd; }
+    State state() { return st; }
+
+    void onDeviceGained(bool gained);
+
+#if defined(QT_DEBUG)
+    QByteArray fileName() { return fName; }
+#endif
+
+private:
+
+    void init(const QString &fileName);
+
+    QAuServerMMPM *srv;
+    QSound *snd;
+
+#if defined(QT_DEBUG)
+    QByteArray fName;
+#endif
+
+    HMMIO fileHandle;
+    USHORT deviceId;
+
+    State st;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+QAuBucketMMPM::QAuBucketMMPM(QAuServerMMPM *server, QSound *sound) :
+    srv(server), snd(sound), fileHandle(NULLHANDLE), deviceId(0),
+    st(Stopped)
+{
+    Q_ASSERT(srv);
+    Q_ASSERT(snd);
+    if (!srv || !snd)
+        return;
+
+    init(snd->fileName());
+}
+
+QAuBucketMMPM::QAuBucketMMPM(QAuServerMMPM *server, const QString &fileName) :
+    srv(server), snd(NULL), fileHandle(NULLHANDLE), deviceId(0),
+    st(Stopped)
+{
+    Q_ASSERT(srv);
+    if (!srv)
+        return;
+
+    init(fileName);
+}
+
+void QAuBucketMMPM::init(const QString &soundFile)
+{
+    Q_ASSERT(fileHandle == NULLHANDLE);
+    if (fileHandle != NULLHANDLE)
+        return;
+
+#if !defined(QT_DEBUG)
+    QByteArray
+#endif
+    fName = QFile::encodeName(soundFile);
+
+    MMIOINFO mmioinfo = { 0 };
+    mmioinfo.ulTranslate = MMIO_TRANSLATEDATA | MMIO_TRANSLATEHEADER;
+    fileHandle = mmioOpen(fName.data(), &mmioinfo, MMIO_READ);
+    if (fileHandle == NULLHANDLE) {
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: falied to open sound file [%s]", fName.data());
+#endif
+        return;
+    }
+
+    MMAUDIOHEADER mmah;
+    LONG bytesRead = 0;
+    ULONG rc = mmioGetHeader(fileHandle, &mmah, sizeof(mmah), &bytesRead, 0, 0);
+    if (rc != MMIO_SUCCESS || mmah.ulMediaType != MMIO_MEDIATYPE_AUDIO) {
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: [%s] is not a sound file or "
+               "has an unsupported format (rc=%04hu:%04hu)",
+               fName.data(), HIUSHORT(rc), LOUSHORT(rc));
+#endif
+        mmioClose(fileHandle, 0);
+        fileHandle = NULLHANDLE;
+        return;
+    }
+
+    srv->bucketList.append(this);
+
+#if defined(QT_QSOUND_DEBUG)
+    qDebug("QAuBucketMMPM::init(): {%p} [%s]", this, fName.data());
+#endif
+}
+
+QAuBucketMMPM::~QAuBucketMMPM()
+{
+#if defined(QT_QSOUND_DEBUG)
+    qDebug("~QAuBucketMMPM(): {%p} [%s]", this, fName.data());
+#endif
+
+    if (deviceId)
+        close(srv->hwnd == NULLHANDLE);
+
+    if (fileHandle != NULLHANDLE) {
+        // removeo from the list unless called from serverUninit()
+        if (srv->hwnd != NULLHANDLE)
+            srv->bucketList.removeAll(this);
+        mmioClose(fileHandle, 0);
+    }
+}
+
+void QAuBucketMMPM::open()
+{
+    Q_ASSERT(!deviceId);
+    if (deviceId)
+        return;
+
+    MCI_OPEN_PARMS openParams = { 0 };
+    openParams.hwndCallback = srv->hwnd;
+    openParams.pszDeviceType = (PSZ) MAKEULONG(MCI_DEVTYPE_WAVEFORM_AUDIO, 0);
+    openParams.pszElementName = (PSZ) fileHandle;
+    ULONG params = MCI_WAIT | MCI_OPEN_MMIO | MCI_READONLY | MCI_OPEN_TYPE_ID;
+    if (getenv("QT_PM_NO_SOUND_SHARE") != NULL) {
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: WARNING: opening device for sound file [%s] in "
+                "exclusive mode due to QT_PM_NO_SOUND_SHARE=%s",
+                fName.data(), getenv("QT_PM_NO_SOUND_SHARE"));
+#endif
+    } else if (getenv("QT_PM_SOUND_SHARE") != NULL) {
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: WARNING: opening device for sound file [%s] in "
+               "shareable mode due to QT_PM_SOUND_SHARE=%s",
+               fName.data(), getenv("QT_PM_SOUND_SHARE"));
+#endif
+        params |= MCI_OPEN_SHAREABLE;
+    } else {
+        // Too pity, but we have to use exclusive mode by default due to
+        // problems with the uniaud driver that is most commonly used nowadays.
+        // In non-exclusive (shared) mode, we will hang up in mmpm.dll doing
+        // mciSendCommand(MCI_CLOSE) in close() for the last played sound if
+        // we start playing 10 or more sounds simultaneously (i.e. w/o waiting
+        // until the previous one completely finishes playing).
+    }
+    ULONG rc = mciSendCommand(0, MCI_OPEN, params, &openParams, 0);
+    if (rc != MCIERR_SUCCESS) {
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: failed to open a device for sound file [%s] "
+               "(rc=%04hu:%04hu)", fName.data(), HIUSHORT(rc), LOUSHORT(rc));
+#endif
+        return;
+    }
+
+    deviceId = openParams.usDeviceID;
+
+    srv->bucketMap.insert(deviceId, this);
+
+#if defined(QT_QSOUND_DEBUG)
+    qDebug("QAuBucketMMPM::open(): {%p} [%s] deviceId=%08hu",
+           this, fName.data(), deviceId);
+#endif
+}
+
+void QAuBucketMMPM::close(bool atExit /* = false */)
+{
+    Q_ASSERT(deviceId);
+    if (!deviceId)
+        return;
+
+#if defined(QT_QSOUND_DEBUG)
+    qDebug("QAuBucketMMPM::close(): {%p} [%s] atExit=%d",
+           this, fName.data(), atExit);
+#endif
+
+    // remove from the map anyway -- we don't plan to retry
+    srv->bucketMap.remove(deviceId);
+
+    // Use MCI_CLOSE_EXIT to tell the media control driver it should
+    // close immediately, w/o waiting or doing any notifications, etc.
+    ULONG param = atExit ? MCI_CLOSE_EXIT : 0;
+
+    ULONG rc = mciSendCommand(deviceId, MCI_CLOSE, param, NULL, 0);
+#if defined(QT_DEBUG)
+    if (rc != MCIERR_SUCCESS)
+        qDebug("QAuBucketMMPM: failed to close the device for sound file [%s] "
+               "(rc=%04hu:%04hu)",
+               fName.data(), HIUSHORT(rc), LOUSHORT(rc));
+#endif
+    Q_UNUSED(rc);
+
+    st = Stopped;
+    deviceId = 0;
+}
+
+bool QAuBucketMMPM::play()
+{
+#if defined(QT_QSOUND_DEBUG)
+    qDebug("QAuBucketMMPM::play(): {%p} [%s]", this, fName.data());
+#endif
+
+    if (!deviceId) {
+        open();
+        if (!deviceId)
+            return false;
+    }
+
+    MCI_PLAY_PARMS playParams = { 0 };
+    playParams.hwndCallback = srv->hwnd;
+    playParams.ulFrom = 0; // always play from the beginning
+
+    ULONG rc = mciSendCommand(deviceId, MCI_PLAY, MCI_NOTIFY | MCI_FROM,
+                              &playParams, 0);
+
+    if (LOUSHORT(rc) == MCIERR_INSTANCE_INACTIVE) {
+        // There are not enough simultaneous audio streams. Try to acquire the
+        // resources and play again. Note that if the device is already acquired
+        // for exclusive use, this command will not wait but return immediately.
+        rc = mciSendCommand(deviceId, MCI_ACQUIREDEVICE, MCI_WAIT, NULL, 0);
+        if (rc == MCIERR_SUCCESS) {
+            rc = mciSendCommand(deviceId, MCI_PLAY, MCI_NOTIFY | MCI_FROM,
+                                &playParams, 0);
+        } else if (LOUSHORT(rc) == MCIERR_DEVICE_LOCKED &&
+                   snd && snd->loops() < 0) {
+            // Enter the special state to let this infinitive sound start
+            // playing when the resource becomes available.
+            st = Waiting;
+            return false;
+        }
+    }
+
+    if (rc == MCIERR_SUCCESS) {
+        st = Playing;
+    } else {
+        st = Stopped;
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: failed to play sound file [%s] (rc=%04hu:%04hu)",
+               fName.data(), HIUSHORT(rc), LOUSHORT(rc));
+#endif
+    }
+
+    return st == Playing;
+}
+
+void QAuBucketMMPM::stop()
+{
+    if (st == Stopped)
+        return;
+
+    // always go to Stopped -- we won't retry
+    // (this is also used in MM_MCINOTIFY processing)
+    st = Stopped;
+
+    ULONG rc = mciSendCommand(deviceId, MCI_STOP, MCI_WAIT, NULL, 0);
+
+    if (rc == MCIERR_SUCCESS) {
+        // nothing
+    } else if (LOUSHORT(rc) == MCIERR_INSTANCE_INACTIVE) {
+        // The infinite QSound-full bucket is now suspended (some other instance
+        // has gained the resource). Close this instance to prevent it from
+        // being automatically resumed later.
+        close();
+    } else {
+#if defined(QT_DEBUG)
+        qDebug("QAuBucketMMPM: failed to stop sound file [%s] (rc=%04hu:%04hu)",
+               fName.data(), HIUSHORT(rc), LOUSHORT(rc));
+#endif
+        // last chance to stop
+        close();
+    }
+}
+
+void QAuBucketMMPM::onDeviceGained(bool gained)
+{
+    if (gained) {
+        // We gained the device resource.
+        if (st == Waiting) {
+            /// @todo (dmik) For some reason, starting playback from here
+            //  (i.e. when we've been given the deivce resource back after
+            //  some other application finished using it exclusively), we can
+            //  get error 5053 (MCIERR_NO_CONNECTION) or even undocumented 5659.
+            //  When it happens, subsequent attempts to play something will
+            //  result into an unkillable hang... Experimemtal for now.
+#if 1
+            // A QSound-full bucket attempted to play eventually regained
+            // the resource. Start playing.
+            play();
+#else
+            st = Stopped;
+#endif
+        }
+    } else {
+        // We lost the device resource.
+        if (st == Playing) {
+            // Close the instance to prevent the playback from being resumed
+            // when the device is auto-gained again (by another instance that
+            // uses MCI_RETURN_RESOURCE in MCI_RELEASEDEVICE). The exception is
+            // a QSound-full bucket with an infinitive loop (that will continue
+            // playing when the resuorce is back).
+            if (snd) {
+                // infinitive loop?
+                if (snd->loops() < 0)
+                    return;
+                // decrease loops to zero
+                while (srv->decLoop(snd) > 0) ;
+            }
+            close();
+            if (!snd) {
+                // delete QSound-less bucket
+                delete this;
+            }
+        }
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+const char *QAuServerMMPM::ClassName = "QAuServerMMPM";
+
+QAuServerMMPM::QAuServerMMPM(QObject* parent) :
+    QAuServer(parent),
+    hwnd(NULLHANDLE), isOk(false),
+    mdmLib("mdm.dll"), mmioLib("mmio.dll")
+{
+    WinRegisterClass(0, ClassName, WindowProc, 0, sizeof(PVOID));
+
+    hwnd = WinCreateWindow(HWND_OBJECT, ClassName, NULL, 0, 0, 0, 0, 0,
+                           NULL, HWND_BOTTOM, 0,
+                           this, NULL);
+
+    if (hwnd == NULLHANDLE) {
+        qWarning("QAuServerMMPM: WinCreateWindow(HWND_OBJECT) "
+                 "failed with 0x%08lX", WinGetLastError(0));
+        return;
+    }
+
+    // resolve functions
+    mmioClose = (mmioClose_T) mmioLib.resolve("mmioClose");
+    mmioOpen = (mmioOpen_T) mmioLib.resolve("mmioOpen");
+    mmioGetHeader = (mmioGetHeader_T) mmioLib.resolve("mmioGetHeader");
+    mciSendCommand = (mciSendCommand_T) mdmLib.resolve("mciSendCommand");
+    if (!mmioClose || !mmioGetHeader || !mmioOpen || !mciSendCommand) {
+        qWarning("QAuServerMMPM: failed to resolve MMPM system functions");
+        return;
+    }
+
+    // try to open the default waveaudio device to ensure it exists
+    MCI_OPEN_PARMS openParams = { 0 };
+    openParams.pszDeviceType = (PSZ) MAKEULONG(MCI_DEVTYPE_WAVEFORM_AUDIO, 0);
+    ULONG rc = mciSendCommand(0, MCI_OPEN, MCI_WAIT |
+                                            MCI_OPEN_SHAREABLE | MCI_OPEN_TYPE_ID,
+                               &openParams, 0);
+    if (rc != MCIERR_SUCCESS) {
+#if defined(QT_DEBUG)
+        qDebug("QAuServerMMPM: failed to open the default waveaudio device "
+               "(rc=%04hu:%04hu)", HIUSHORT(rc), LOUSHORT(rc));
+#endif
+        return;
+    }
+
+    // close the device opened above
+    mciSendCommand(openParams.usDeviceID, MCI_CLOSE, MCI_WAIT, NULL, 0);
+
+    connect(qApp, SIGNAL(aboutToQuit()), SLOT(serverUninit()));
+
+    isOk = true;
+}
+
+QAuServerMMPM::~QAuServerMMPM()
+{
+    // still alive?
+    if (hwnd)
+        serverUninit();
+}
+
+void QAuServerMMPM::serverUninit()
+{
+#if defined(QT_QSOUND_DEBUG)
+    qDebug("QAuServerMMPM::serverUninit(): buckets left: %d",
+           bucketList.count());
+#endif
+
+    Q_ASSERT(hwnd);
+    if (hwnd == NULLHANDLE)
+        return;
+
+    WinDestroyWindow(hwnd);
+    hwnd = NULLHANDLE;
+
+    // Deassociate all remaining buckets from QSound objects and delete them
+    // (note that deleting a bucket will remove it from the list, which
+    // in turn will advance the current item to the next one, so current() is
+    // is used instead of next() in the loop).
+    foreach (QAuBucketMMPM *b, bucketList) {
+        QSound *s = b->sound();
+        if (s) {
+            // the below call will delete the associated bucket
+            setBucket (s, 0);
+        } else {
+            delete b;
+        }
+    }
+
+    bucketList.clear();
+
+    Q_ASSERT(bucketMap.count() == 0);
+
+    mmioClose = 0;
+    mmioOpen = 0;
+    mmioGetHeader = 0;
+    mciSendCommand = 0;
+}
+
+void QAuServerMMPM::init(QSound *s)
+{
+    Q_ASSERT(s);
+
+    if (!okay())
+        return;
+
+    QAuBucketMMPM *b = new QAuBucketMMPM(this, s);
+    if (b->okay()) {
+        setBucket(s, b);
+#if defined(QT_QSOUND_DEBUG)
+        qDebug("QAuServerMMPM::init(): bucket=%p [%s]",
+               b, b->fileName().data());
+#endif
+    } else {
+        setBucket(s, 0);
+        // b is deleted in setBucket()
+    }
+}
+
+void QAuServerMMPM::play(const QString &filename)
+{
+    if (!okay())
+        return;
+
+    QAuBucketMMPM *b = new QAuBucketMMPM(this, filename);
+    if (b->okay()) {
+#if defined(QT_QSOUND_DEBUG)
+        qDebug("play(QString): bucket=%p [%s]", b, b->fileName().data());
+#endif
+        if (b->play()) {
+            // b will be deleted in WindowProc() or in onDeviceGained()
+        } else {
+            delete b;
+        }
+    } else {
+        delete b;
+    }
+}
+
+void QAuServerMMPM::play(QSound *s)
+{
+    Q_ASSERT(s);
+
+    if (!okay() || !isRelevant(s)) {
+        // no MMPM is available or a wrong sound, just decrease loops to zero
+        while (decLoop(s) > 0) ;
+        return;
+    }
+
+    QAuBucketMMPM *b = static_cast< QAuBucketMMPM * >(bucket(s));
+    if (b) {
+#if defined(QT_QSOUND_DEBUG)
+        qDebug("play(QSound): bucket=%p [%s]", b, b->fileName().data());
+#endif
+        b->play();
+    } else {
+        // failed to create a bucket in init(), just decrease loops to zero
+        while (decLoop(s) > 0) ;
+    }
+}
+
+void QAuServerMMPM::stop(QSound *s)
+{
+    Q_ASSERT(s);
+
+    if (!okay() || !isRelevant(s))
+        return;
+
+    QAuBucketMMPM *b = static_cast< QAuBucketMMPM * >(bucket(s));
+    if (b)
+        b->stop();
+}
+
+bool QAuServerMMPM::okay()
+{
+    return isOk;
+}
+
+MRESULT EXPENTRY QAuServerMMPM::WindowProc(HWND hwnd, ULONG msg,
+                                            MPARAM mp1, MPARAM mp2)
+{
+    QAuServerMMPM * that =
+        static_cast< QAuServerMMPM * >(WinQueryWindowPtr(hwnd, 0));
+
+    switch (msg) {
+        case WM_CREATE: {
+            QAuServerMMPM * that = static_cast< QAuServerMMPM * >(mp1);
+            if (!that)
+                return (MRESULT) TRUE;
+            WinSetWindowPtr(hwnd, 0, that);
+            return (MRESULT) FALSE;
+        }
+        case WM_DESTROY: {
+            return 0;
+        }
+        case MM_MCINOTIFY: {
+            if (!that)
+                return 0;
+
+            USHORT code = SHORT1FROMMP(mp1);
+            USHORT deviceId = SHORT1FROMMP(mp2);
+            USHORT mcimsg = SHORT2FROMMP(mp2);
+#if defined(QT_QSOUND_DEBUG)
+            qDebug("MM_MCINOTIFY: code=0x%04hX, deviceId=%04hu, mcimsg=%04hu",
+                   code, deviceId, mcimsg);
+#endif
+            Q_ASSERT(mcimsg == MCI_PLAY);
+            if (mcimsg != MCI_PLAY)
+                return 0;
+
+            QAuBucketMMPM *b = that->bucketMap.value(deviceId);
+            // There will be a late notification if the sound is
+            // playing when close() happens. Just return silently.
+            if (!b)
+                return 0;
+
+#if defined(QT_QSOUND_DEBUG)
+            qDebug("MM_MCINOTIFY: bucket=%p [%s]", b, b->fileName().data());
+#endif
+
+            QSound *sound = b->sound();
+            if (sound) {
+                bool returnResource = false;
+                if (b->state() == QAuBucketMMPM::Stopped) {
+                    // It's possible that MCI_STOP is issued right after MCI_PLAY
+                    // has successfilly finished and sent MM_MCINOTIFY but before
+                    // we start it again here. Obey the STOP request.
+                    returnResource = true;
+                } else if (code == MCI_NOTIFY_SUCCESSFUL) {
+                    // play the sound until there are no loops left
+                    int loopsLeft = that->decLoop(sound);
+                    if (loopsLeft != 0)
+                        b->play();
+                    else
+                        returnResource = true;
+                } else if (code != MCI_NOTIFY_SUPERSEDED) {
+                    returnResource = true;
+                }
+                if (returnResource) {
+                    // let infinitive sounds continue playing
+                    mciSendCommand(deviceId, MCI_RELEASEDEVICE,
+                                    MCI_RETURN_RESOURCE, NULL, 0);
+                }
+            } else {
+                // delete QSound-less bucket when finished or stopped playing
+                // (closing the instance will return the resource)
+                delete b;
+            }
+
+            return 0;
+        }
+        case MM_MCIPASSDEVICE: {
+            if (!that)
+                return 0;
+
+            USHORT deviceId = SHORT1FROMMP(mp1);
+            USHORT event = SHORT1FROMMP(mp2);
+#if defined(QT_QSOUND_DEBUG)
+            qDebug("MM_MCIPASSDEVICE: deviceId=%04hu, event=0x%04hX",
+                   deviceId, event);
+#endif
+            QAuBucketMMPM *b = that->bucketMap.value(deviceId);
+            if (!b)
+                return 0;
+
+#if defined(QT_QSOUND_DEBUG)
+            qDebug("MM_MCIPASSDEVICE: bucket=%p [%s]", b, b->fileName().data());
+#endif
+            // Note: this call may delete b
+            b->onDeviceGained(event == MCI_GAINING_USE);
+
+            return 0;
+        }
+    }
+
+    return 0;
+}
+
 QAuServer* qt_new_audio_server()
 {
-    // @todo implement
-    return 0;
+    return new QAuServerMMPM(qApp);
 }
 
 QT_END_NAMESPACE
 
-// @todo
-//#include "qsound_pm.moc"
+#include "qsound_pm.moc"
 
 #endif // QT_NO_SOUND