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audio: basic support for multi backend audio

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Audio functions no longer access glob_audio_state, instead they get an
AudioState as a parameter.  This is required in order to support
multiple backends.

glob_audio_state is also gone, and replaced with a tailq so we can store
more than one states.

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Message-id: 67aef54f9e729a7160fe95c465351115e392164b.1566168923.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Kővágó, Zoltán
2019-08-19 01:06:47 +02:00
committed by Gerd Hoffmann
parent 526fb0581e
commit ecd97e9592
7 changed files with 95 additions and 33 deletions
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2
audio/audio_int.h
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@ -196,6 +196,8 @@ typedef struct AudioState {
bool timer_running;
uint64_t timer_last;
QTAILQ_ENTRY(AudioState) list;
} AudioState;
extern const struct mixeng_volume nominal_volume;