diff options
| author | Volker Rümelin <vr_qemu@t-online.de> | 2021-01-10 11:02:36 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2021-01-15 11:25:22 +0100 |
| commit | 401dcf0540a1b26e88bf04da2dac583078ad7da6 (patch) | |
| tree | 1d2cf79b0c5b8b750b001083990e283920851d15 /audio | |
| parent | d9a8b27a7e9b6467ff1709ae8a44d816d90c4d71 (diff) | |
| download | qemu-401dcf0540a1b26e88bf04da2dac583078ad7da6.zip | |
dsoundaudio: replace GetForegroundWindow()
GetForegroundWindow() doesn't necessarily return the own window
handle. It just returns a handle to the currently active window
and can even return NULL. At the time dsound_open() gets called
the active window is most likely the shell window and not the
QEMU window.
Replace GetForegroundWindow() with GetDesktopWindow() which
always returns a valid window handle, and at the same time
replace the DirectSound buffer flag DSBCAPS_STICKYFOCUS with
DSBCAPS_GLOBALFOCUS where Windows only expects a valid window
handle for DirectSound function SetCooperativeLevel(). The
Microsoft online docs for IDirectSound::SetCooperativeLevel
recommend this in the remarks.
This fixes a bug where you can't hear sound from the guest.
To reproduce start qemu with -machine pcspk-audiodev=audio0
-device intel-hda -device hda-duplex,audiodev=audio0
-audiodev dsound,id=audio0,out.mixing-engine=off
from a shell and start audio playback with the hda device in the
guest. The guest will be silent. To hear guest audio you have to
activate the shell window once.
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de
Message-Id: <20210110100239.27588-20-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'audio')
| -rw-r--r-- | audio/dsound_template.h | 2 | ||||
| -rw-r--r-- | audio/dsoundaudio.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/audio/dsound_template.h b/audio/dsound_template.h index 9c5ce625ab..0678f2de38 100644 --- a/audio/dsound_template.h +++ b/audio/dsound_template.h @@ -205,7 +205,7 @@ static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as, NULL ); #else - bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2; + bd.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_GETCURRENTPOSITION2; hr = IDirectSound_CreateSoundBuffer ( s->dsound, &bd, diff --git a/audio/dsoundaudio.c b/audio/dsoundaudio.c index 4cdf19ab67..0fbdf770ac 100644 --- a/audio/dsoundaudio.c +++ b/audio/dsoundaudio.c @@ -347,7 +347,7 @@ static int dsound_open (dsound *s) HRESULT hr; HWND hwnd; - hwnd = GetForegroundWindow (); + hwnd = GetDesktopWindow(); hr = IDirectSound_SetCooperativeLevel ( s->dsound, hwnd, |