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41
42 #include "qsound.h"
43
44 #ifndef QT_NO_SOUND
45
46 #include "qapplication.h"
47 #include "qapplication_p.h"
48 #include <qfile.h>
49 #include "qpointer.h"
50 #include "qsound_p.h"
51
52 #include <qt_windows.h>
53
54 QT_BEGIN_NAMESPACE
55
56 class QAuServerWindows : public QAuServer {
57 Q_OBJECT
58
59 public:
60 QAuServerWindows(QObject* parent);
61 ~QAuServerWindows();
62
63 void playHelper(const QString &filename, int loop, QSound *snd);
64 void play(const QString& filename, int loop);
65 void play(QSound*);
66
67 void stop(QSound*);
68 bool okay();
69
decLoop(QSound * snd)70 int decLoop(QSound *snd) { return QAuServer::decLoop(snd); }
71
72 HANDLE current;
73 HANDLE mutex;
74 HANDLE event;
75 };
76
QAuServerWindows(QObject * parent)77 QAuServerWindows::QAuServerWindows(QObject* parent) :
78 QAuServer(parent), current(0)
79 {
80 mutex = CreateMutex(0, 0, 0);
81 event = CreateEvent(0, FALSE, FALSE, 0);
82 }
83
~QAuServerWindows()84 QAuServerWindows::~QAuServerWindows()
85 {
86 HANDLE mtx = mutex;
87 WaitForSingleObject(mtx, INFINITE);
88 mutex = 0;
89
90 ReleaseMutex(mtx);
91 CloseHandle(mtx);
92 CloseHandle(event);
93 }
94
95 struct SoundInfo
96 {
SoundInfoSoundInfo97 SoundInfo(const QString &fn, int lp, QSound *snd, QAuServerWindows *srv)
98 : sound(snd), server(srv), filename(fn), loops(lp)
99 {
100 }
101
102 QSound *sound;
103 QAuServerWindows *server;
104 QString filename;
105 int loops;
106 };
107
SoundPlayProc(LPVOID param)108 DWORD WINAPI SoundPlayProc(LPVOID param)
109 {
110 SoundInfo *info = (SoundInfo*)param;
111
112 // copy data before waking up GUI thread
113 QAuServerWindows *server = info->server;
114 QSound *sound = info->sound;
115 int loops = info->loops;
116 QString filename = info->filename;
117 HANDLE mutex = server->mutex;
118 HANDLE event = server->event;
119 info = 0;
120
121 // server must not be destroyed until thread finishes
122 // and all other sounds have to wait
123 WaitForSingleObject(mutex, INFINITE);
124
125 if (loops <= 1) {
126 server->current = 0;
127 int flags = SND_FILENAME|SND_ASYNC;
128 if (loops == -1)
129 flags |= SND_LOOP;
130
131 PlaySound((wchar_t*)filename.utf16(), 0, flags);
132 if (sound && loops == 1)
133 server->decLoop(sound);
134
135 // GUI thread continues, but we are done as well.
136 SetEvent(event);
137 } else {
138 // signal GUI thread to continue - sound might be reset!
139 QPointer<QSound> guarded_sound = sound;
140 SetEvent(event);
141
142 for (int l = 0; l < loops && server->current; ++l) {
143 PlaySound((wchar_t*)filename.utf16(), 0, SND_FILENAME | SND_SYNC);
144
145 if (guarded_sound)
146 server->decLoop(guarded_sound);
147 }
148 server->current = 0;
149 }
150 ReleaseMutex(mutex);
151
152 return 0;
153 }
154
playHelper(const QString & filename,int loop,QSound * snd)155 void QAuServerWindows::playHelper(const QString &filename, int loop, QSound *snd)
156 {
157 if (loop == 0)
158 return;
159 // busy?
160 if (WaitForSingleObject(mutex, 0) == WAIT_TIMEOUT)
161 return;
162 ReleaseMutex(mutex);
163
164 DWORD threadid = 0;
165 SoundInfo info(filename, loop, snd, this);
166 current = CreateThread(0, 0, SoundPlayProc, &info, 0, &threadid);
167 CloseHandle(current);
168
169 WaitForSingleObject(event, INFINITE);
170 }
171
play(const QString & filename,int loop)172 void QAuServerWindows::play(const QString& filename, int loop)
173 {
174 playHelper(filename, loop, 0);
175 }
176
play(QSound * s)177 void QAuServerWindows::play(QSound* s)
178 {
179 playHelper(s->fileName(), s->loops(), s);
180 }
181
stop(QSound *)182 void QAuServerWindows::stop(QSound*)
183 {
184 // stop unlooped sound
185 if (!current)
186 PlaySound(0, 0, 0);
187 // stop after loop is done
188 current = 0;
189 }
190
okay()191 bool QAuServerWindows::okay()
192 {
193 return true;
194 }
195
qt_new_audio_server()196 QAuServer* qt_new_audio_server()
197 {
198 return new QAuServerWindows(qApp);
199 }
200
201 QT_END_NAMESPACE
202
203 #include "qsound_win.moc"
204
205 #endif // QT_NO_SOUND
206