Merge remote branch 'origin/4.6' into qt-4.7-from-4.6

Conflicts:
	configure.exe
	examples/multimedia/audioinput/audioinput.cpp
	src/corelib/io/qfsfileengine.cpp
	src/gui/egl/qegl_wince.cpp
	src/gui/egl/qeglproperties.cpp
	src/gui/egl/qeglproperties_p.h
	src/gui/embedded/directfb.pri
	src/gui/kernel/qapplication_win.cpp
	src/gui/painting/qdrawutil.cpp
	src/opengl/qgl_p.h
	src/sql/drivers/odbc/qsql_odbc.cpp
	src/sql/drivers/odbc/qsql_odbc.h
	tests/auto/auto.pro
	tests/auto/qgl/tst_qgl.cpp
	translations/assistant_adp_ru.ts

5 files changed, 59 insertions, 15 deletions

diff --git a/src/multimedia/audio/qaudioinput_mac_p.cpp b/src/multimedia/audio/qaudioinput_mac_p.cpp
index 7251513..bd2de52 100644
--- a/src/multimedia/audio/qaudioinput_mac_p.cpp
+++ b/src/multimedia/audio/qaudioinput_mac_p.cpp
@@ -64,7 +64,7 @@
 QT_BEGIN_NAMESPACE
 
 
-namespace
+namespace QtMultimediaInternal
 {
 
 static const int default_buffer_size = 4 * 1024;
@@ -169,8 +169,10 @@ public:
 
     void reset()
     {
-        for (UInt32 i = 0; i < bfs->mNumberBuffers; ++i)
+        for (UInt32 i = 0; i < bfs->mNumberBuffers; ++i) {
             bfs->mBuffers[i].mDataByteSize = dataSize;
+            bfs->mBuffers[i].mData = 0;
+        }
     }
 
 private:
@@ -523,7 +525,7 @@ QAudioInputPrivate::QAudioInputPrivate(const QByteArray& device, QAudioFormat co
         startTime = 0;
         totalFrames = 0;
         audioBuffer = 0;
-        internalBufferSize = default_buffer_size;
+        internalBufferSize = QtMultimediaInternal::default_buffer_size;
         clockFrequency = AudioGetHostClockFrequency() / 1000;
         errorCode = QAudio::NoError;
         stateCode = QAudio::StoppedState;
@@ -668,13 +670,13 @@ bool QAudioInputPrivate::open()
     else
         internalBufferSize -= internalBufferSize % streamFormat.mBytesPerFrame;
 
-    audioBuffer = new QAudioInputBuffer(internalBufferSize,
+    audioBuffer = new QtMultimediaInternal::QAudioInputBuffer(internalBufferSize,
                                         periodSizeBytes,
                                         deviceFormat,
                                         streamFormat,
                                         this);
 
-    audioIO = new MacInputDevice(audioBuffer, this);
+    audioIO = new QtMultimediaInternal::MacInputDevice(audioBuffer, this);
 
     // Init
     if (AudioUnitInitialize(audioUnit) != noErr) {
diff --git a/src/multimedia/audio/qaudioinput_mac_p.h b/src/multimedia/audio/qaudioinput_mac_p.h
index e1b8e4a..42f90e2 100644
--- a/src/multimedia/audio/qaudioinput_mac_p.h
+++ b/src/multimedia/audio/qaudioinput_mac_p.h
@@ -75,7 +75,7 @@ QT_BEGIN_NAMESPACE
 class QTimer;
 class QIODevice;
 
-namespace
+namespace QtMultimediaInternal
 {
 class QAudioInputBuffer;
 }
@@ -97,7 +97,7 @@ public:
     UInt64          startTime;
     QAudio::Error   errorCode;
     QAudio::State   stateCode;
-    QAudioInputBuffer*   audioBuffer;
+    QtMultimediaInternal::QAudioInputBuffer*   audioBuffer;
     QMutex          mutex;
     QWaitCondition  threadFinished;
     QAtomicInt      audioThreadState;
diff --git a/src/multimedia/audio/qaudiooutput_alsa_p.cpp b/src/multimedia/audio/qaudiooutput_alsa_p.cpp
index b127103..e49c75a 100644
--- a/src/multimedia/audio/qaudiooutput_alsa_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_alsa_p.cpp
@@ -369,10 +369,52 @@ bool QAudioOutputPrivate::open()
         }
     }
     if ( !fatal ) {
+        unsigned int maxBufferTime = 0;
+        unsigned int minBufferTime = 0;
+        unsigned int maxPeriodTime = 0;
+        unsigned int minPeriodTime = 0;
+
+        err = snd_pcm_hw_params_get_buffer_time_max(hwparams, &maxBufferTime, &dir);
+        if ( err >= 0)
+            err = snd_pcm_hw_params_get_buffer_time_min(hwparams, &minBufferTime, &dir);
+        if ( err >= 0)
+            err = snd_pcm_hw_params_get_period_time_max(hwparams, &maxPeriodTime, &dir);
+        if ( err >= 0)
+            err = snd_pcm_hw_params_get_period_time_min(hwparams, &minPeriodTime, &dir);
+
+        if ( err < 0 ) {
+            fatal = true;
+            errMessage = QString::fromLatin1("QAudioOutput: buffer/period min and max: err = %1").arg(err);
+        } else {
+            if (maxBufferTime < buffer_time || buffer_time < minBufferTime || maxPeriodTime < period_time || minPeriodTime > period_time) {
+#ifdef DEBUG_AUDIO
+                qDebug()<<"defaults out of range";
+                qDebug()<<"pmin="<<minPeriodTime<<", pmax="<<maxPeriodTime<<", bmin="<<minBufferTime<<", bmax="<<maxBufferTime;
+#endif
+                period_time = minPeriodTime;
+                if (period_time*4 <= maxBufferTime) {
+                    // Use 4 periods if possible
+                    buffer_time = period_time*4;
+                    chunks = 4;
+                } else if (period_time*2 <= maxBufferTime) {
+                    // Use 2 periods if possible
+                    buffer_time = period_time*2;
+                    chunks = 2;
+                } else {
+                    qWarning()<<"QAudioOutput: alsa only supports single period!";
+                    fatal = true;
+                }
+#ifdef DEBUG_AUDIO
+                qDebug()<<"used: buffer_time="<<buffer_time<<", period_time="<<period_time;
+#endif
+            }
+        }
+    }
+    if ( !fatal ) {
         err = snd_pcm_hw_params_set_buffer_time_near(handle, hwparams, &buffer_time, &dir);
         if ( err < 0 ) {
             fatal = true;
-                errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_buffer_time_near: err = %1").arg(err);
+            errMessage = QString::fromLatin1("QAudioOutput: snd_pcm_hw_params_set_buffer_time_near: err = %1").arg(err);
         }
     }
     if ( !fatal ) {
diff --git a/src/multimedia/audio/qaudiooutput_mac_p.cpp b/src/multimedia/audio/qaudiooutput_mac_p.cpp
index 518f78f..6f32257 100644
--- a/src/multimedia/audio/qaudiooutput_mac_p.cpp
+++ b/src/multimedia/audio/qaudiooutput_mac_p.cpp
@@ -70,7 +70,7 @@
 QT_BEGIN_NAMESPACE
 
 
-namespace
+namespace QtMultimediaInternal
 {
 
 static const int default_buffer_size = 8 * 1024;
@@ -237,7 +237,7 @@ class MacOutputDevice : public QIODevice
     Q_OBJECT
 
 public:
-    MacOutputDevice(QAudioOutputBuffer* audioBuffer, QObject* parent):
+    MacOutputDevice(QtMultimediaInternal::QAudioOutputBuffer* audioBuffer, QObject* parent):
         QIODevice(parent),
         m_audioBuffer(audioBuffer)
     {
@@ -263,7 +263,7 @@ public:
     }
 
 private:
-    QAudioOutputBuffer*    m_audioBuffer;
+    QtMultimediaInternal::QAudioOutputBuffer*    m_audioBuffer;
 };
 
 
@@ -285,7 +285,7 @@ QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray& device, const QAudioF
         startTime = 0;
         totalFrames = 0;
         audioBuffer = 0;
-        internalBufferSize = default_buffer_size;
+        internalBufferSize = QtMultimediaInternal::default_buffer_size;
         clockFrequency = AudioGetHostClockFrequency() / 1000;
         errorCode = QAudio::NoError;
         stateCode = QAudio::StoppedState;
@@ -399,7 +399,7 @@ bool QAudioOutputPrivate::open()
     else
         internalBufferSize -= internalBufferSize % streamFormat.mBytesPerFrame;
 
-    audioBuffer = new QAudioOutputBuffer(internalBufferSize, periodSizeBytes, audioFormat);
+    audioBuffer = new QtMultimediaInternal::QAudioOutputBuffer(internalBufferSize, periodSizeBytes, audioFormat);
     connect(audioBuffer, SIGNAL(readyRead()), SLOT(inputReady()));  // Pull
 
     audioIO = new MacOutputDevice(audioBuffer, this);
diff --git a/src/multimedia/audio/qaudiooutput_mac_p.h b/src/multimedia/audio/qaudiooutput_mac_p.h
index 1aacc67..752905c 100644
--- a/src/multimedia/audio/qaudiooutput_mac_p.h
+++ b/src/multimedia/audio/qaudiooutput_mac_p.h
@@ -74,7 +74,7 @@ QT_BEGIN_NAMESPACE
 
 class QIODevice;
 
-namespace
+namespace QtMultimediaInternal
 {
 class QAudioOutputBuffer;
 }
@@ -96,7 +96,7 @@ public:
     UInt64          startTime;
     AudioStreamBasicDescription deviceFormat;
     AudioStreamBasicDescription streamFormat;
-    QAudioOutputBuffer*   audioBuffer;
+    QtMultimediaInternal::QAudioOutputBuffer*   audioBuffer;
     QAtomicInt      audioThreadState;
     QWaitCondition  threadFinished;
     QMutex          mutex;