diff options
| author | Marc-André Lureau <marcandre.lureau@gmail.com> | 2012-04-17 14:32:36 +0200 |
|---|---|---|
| committer | malc <av1474@comtv.ru> | 2012-04-17 16:57:57 +0400 |
| commit | c01b2456238f73964876471452e27d4aad7900fb (patch) | |
| tree | 828e8798ffc13fac2972657332fdc9bccd7ee965 /audio | |
| parent | 6c95ab94f9f7e8d3156e4e16ecc7c499e141bb1a (diff) | |
audio: don't apply volume effect if backend has VOICE_VOLUME_CAP
If the audio backend is capable of volume control, don't apply
software volume (mixeng_volume ()), but instead, rely on backend
volume control. This will allow guest to have full range volume
control.
Signed-off-by: Marc-Andr? Lureau <marcandre.lureau@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
Diffstat (limited to 'audio')
| -rw-r--r-- | audio/audio.c | 9 | ||||
| -rw-r--r-- | audio/audio_int.h | 5 | ||||
| -rw-r--r-- | audio/audio_template.h | 2 |
3 files changed, 14 insertions, 2 deletions
diff --git a/audio/audio.c b/audio/audio.c index d76c342dcf..bd9237e9d3 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -957,7 +957,9 @@ int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int size) total += isamp; } - mixeng_volume (sw->buf, ret, &sw->vol); + if (!(hw->ctl_caps & VOICE_VOLUME_CAP)) { + mixeng_volume (sw->buf, ret, &sw->vol); + } sw->clip (buf, sw->buf, ret); sw->total_hw_samples_acquired += total; @@ -1041,7 +1043,10 @@ int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int size) swlim = audio_MIN (swlim, samples); if (swlim) { sw->conv (sw->buf, buf, swlim); - mixeng_volume (sw->buf, swlim, &sw->vol); + + if (!(sw->hw->ctl_caps & VOICE_VOLUME_CAP)) { + mixeng_volume (sw->buf, swlim, &sw->vol); + } } while (swlim) { diff --git a/audio/audio_int.h b/audio/audio_int.h index 117f95e36b..b9b0676d77 100644 --- a/audio/audio_int.h +++ b/audio/audio_int.h @@ -82,6 +82,7 @@ typedef struct HWVoiceOut { int samples; QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head; QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head; + int ctl_caps; struct audio_pcm_ops *pcm_ops; QLIST_ENTRY (HWVoiceOut) entries; } HWVoiceOut; @@ -101,6 +102,7 @@ typedef struct HWVoiceIn { int samples; QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head; + int ctl_caps; struct audio_pcm_ops *pcm_ops; QLIST_ENTRY (HWVoiceIn) entries; } HWVoiceIn; @@ -150,6 +152,7 @@ struct audio_driver { int max_voices_in; int voice_size_out; int voice_size_in; + int ctl_caps; }; struct audio_pcm_ops { @@ -233,6 +236,8 @@ void audio_run (const char *msg); #define VOICE_DISABLE 2 #define VOICE_VOLUME 3 +#define VOICE_VOLUME_CAP (1 << VOICE_VOLUME) + static inline int audio_ring_dist (int dst, int src, int len) { return (dst >= src) ? (dst - src) : (len - src + dst); diff --git a/audio/audio_template.h b/audio/audio_template.h index e62a71345e..519432a7c5 100644 --- a/audio/audio_template.h +++ b/audio/audio_template.h @@ -263,6 +263,8 @@ static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as) } hw->pcm_ops = drv->pcm_ops; + hw->ctl_caps = drv->ctl_caps; + QLIST_INIT (&hw->sw_head); #ifdef DAC QLIST_INIT (&hw->cap_head); |