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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1771854554; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1g/F5PtdIz9SgI7wPwsefeu+goB4d1MjontlE0ZmifI=; b=XNU38FekOb6Gf2kvoX53CmWVih+LUif5twNf/EQEFxBVbcSeYRffE0wG9ZyMUTjIIGS/AA tx/3gqBQYS9ivRc33BhrMH/pgiWAHFC7OEFaa4k5ZxMAYto3u6v8C1z6Y7ZV0ibg6Mw20Y bylQpA6aA/44GOhu6AfMZOrEV1JAy24= X-MC-Unique: jmeNkWTzPrizyNA-mYMoow-1 X-Mimecast-MFC-AGG-ID: jmeNkWTzPrizyNA-mYMoow_1771854550 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: Peter Maydell , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann Subject: [PULL v3 35/85] audio: make AudioBackend truly abstract Date: Mon, 23 Feb 2026 14:46:36 +0100 Message-ID: <20260223134731.2377432-36-marcandre.lureau@redhat.com> In-Reply-To: <20260223134731.2377432-1-marcandre.lureau@redhat.com> References: <20260223134731.2377432-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -1 X-Spam_score: -0.2 X-Spam_bar: / X-Spam_report: (-0.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=1.179, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.717, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1771855507197158500 From: Marc-Andr=C3=A9 Lureau Add virtual methods to be implemented by concrete classes, like AudioMixengBackendClass. Reviewed-by: Mark Cave-Ayland Reviewed-by: Akihiko Odaki Signed-off-by: Marc-Andr=C3=A9 Lureau --- audio/audio_template.h | 9 +- include/qemu/audio-capture.h | 13 --- include/qemu/audio.h | 58 +++++++++-- audio/audio.c | 187 ++++++++++++++++++++++++++++++++--- 4 files changed, 227 insertions(+), 40 deletions(-) diff --git a/audio/audio_template.h b/audio/audio_template.h index 33f2ff432eb..a7733f9e1d9 100644 --- a/audio/audio_template.h +++ b/audio/audio_template.h @@ -478,7 +478,7 @@ static void glue (audio_close_, TYPE) (SW *sw) g_free (sw); } =20 -void glue(AUD_close_, TYPE)(AudioBackend *be, SW *sw) +static void glue(audio_mixeng_backend_close_, TYPE)(AudioBackend *be, SW *= sw) { if (sw) { if (audio_bug(__func__, !be)) { @@ -490,14 +490,13 @@ void glue(AUD_close_, TYPE)(AudioBackend *be, SW *sw) } } =20 -SW *glue (AUD_open_, TYPE) ( +static SW *glue(audio_mixeng_backend_open_, TYPE) ( AudioBackend *be, SW *sw, const char *name, void *callback_opaque , audio_callback_fn callback_fn, - const struct audsettings *as - ) + const struct audsettings *as) { AudioMixengBackend *s =3D AUDIO_MIXENG_BACKEND(be); AudiodevPerDirectionOptions *pdo; @@ -569,7 +568,7 @@ SW *glue (AUD_open_, TYPE) ( return NULL; } =20 -bool glue(AUD_is_active_, TYPE)(AudioBackend *be, SW *sw) +static bool glue(audio_mixeng_backend_is_active_, TYPE)(AudioBackend *be, = SW *sw) { return sw ? sw->active : 0; } diff --git a/include/qemu/audio-capture.h b/include/qemu/audio-capture.h index f500b0a7f8c..5bfbdd02985 100644 --- a/include/qemu/audio-capture.h +++ b/include/qemu/audio-capture.h @@ -8,19 +8,6 @@ =20 #include "audio.h" =20 -typedef struct CaptureVoiceOut CaptureVoiceOut; - -typedef enum { - AUD_CNOTIFY_ENABLE, - AUD_CNOTIFY_DISABLE -} audcnotification_e; - -struct audio_capture_ops { - void (*notify) (void *opaque, audcnotification_e cmd); - void (*capture) (void *opaque, const void *buf, int size); - void (*destroy) (void *opaque); -}; - struct capture_ops { void (*info) (void *opaque); void (*destroy) (void *opaque); diff --git a/include/qemu/audio.h b/include/qemu/audio.h index e87708e3d1e..4fae48886ba 100644 --- a/include/qemu/audio.h +++ b/include/qemu/audio.h @@ -43,6 +43,25 @@ typedef struct audsettings { =20 typedef struct SWVoiceOut SWVoiceOut; typedef struct SWVoiceIn SWVoiceIn; +typedef struct CaptureVoiceOut CaptureVoiceOut; + +typedef enum { + AUD_CNOTIFY_ENABLE, + AUD_CNOTIFY_DISABLE +} audcnotification_e; + +struct audio_capture_ops { + void (*notify) (void *opaque, audcnotification_e cmd); + void (*capture) (void *opaque, const void *buf, int size); + void (*destroy) (void *opaque); +}; + +#define AUDIO_MAX_CHANNELS 16 +typedef struct Volume { + bool mute; + int channels; + uint8_t vol[AUDIO_MAX_CHANNELS]; +} Volume; =20 typedef struct AudioBackend { Object parent_obj; @@ -53,6 +72,35 @@ typedef struct AudioBackendClass { =20 bool (*realize)(AudioBackend *be, Audiodev *dev, Error **errp); const char *(*get_id)(AudioBackend *be); + SWVoiceOut *(*open_out)(AudioBackend *be, + SWVoiceOut *sw, + const char *name, + void *callback_opaque, + audio_callback_fn callback_fn, + const struct audsettings *as); + SWVoiceIn *(*open_in)(AudioBackend *be, + SWVoiceIn *sw, + const char *name, + void *callback_opaque, + audio_callback_fn callback_fn, + const struct audsettings *as); + void (*close_out)(AudioBackend *be, SWVoiceOut *sw); + void (*close_in)(AudioBackend *be, SWVoiceIn *sw); + bool (*is_active_out)(AudioBackend *be, SWVoiceOut *sw); + bool (*is_active_in)(AudioBackend *be, SWVoiceIn *sw); + void (*set_active_out)(AudioBackend *be, SWVoiceOut *sw, bool on); + void (*set_active_in)(AudioBackend *be, SWVoiceIn *sw, bool on); + void (*set_volume_out)(AudioBackend *be, SWVoiceOut *sw, Volume *vol); + void (*set_volume_in)(AudioBackend *be, SWVoiceIn *sw, Volume *vol); + size_t (*write)(AudioBackend *be, SWVoiceOut *sw, void *buf, size_t si= ze); + size_t (*read)(AudioBackend *be, SWVoiceIn *sw, void *buf, size_t size= ); + int (*get_buffer_size_out)(AudioBackend *be, SWVoiceOut *sw); + CaptureVoiceOut *(*add_capture)(AudioBackend *be, + struct audsettings *as, + struct audio_capture_ops *ops, + void *cb_opaque); + void (*del_capture)(AudioBackend *be, CaptureVoiceOut *cap, void *cb_o= paque); + #ifdef CONFIG_GIO bool (*set_dbus_server)(AudioBackend *be, GDBusObjectManagerServer *manager, @@ -69,8 +117,7 @@ SWVoiceOut *AUD_open_out( const char *name, void *callback_opaque, audio_callback_fn callback_fn, - const struct audsettings *settings - ); + const struct audsettings *settings); =20 void AUD_close_out(AudioBackend *be, SWVoiceOut *sw); size_t AUD_write(AudioBackend *be, SWVoiceOut *sw, void *pcm_buf, size_t s= ize); @@ -78,13 +125,6 @@ int AUD_get_buffer_size_out(AudioBackend *be, SWVoiceO= ut *sw); void AUD_set_active_out(AudioBackend *be, SWVoiceOut *sw, bool on); bool AUD_is_active_out(AudioBackend *be, SWVoiceOut *sw); =20 -#define AUDIO_MAX_CHANNELS 16 -typedef struct Volume { - bool mute; - int channels; - uint8_t vol[AUDIO_MAX_CHANNELS]; -} Volume; - void AUD_set_volume_out(AudioBackend *be, SWVoiceOut *sw, Volume *vol); void AUD_set_volume_in(AudioBackend *be, SWVoiceIn *sw, Volume *vol); =20 diff --git a/audio/audio.c b/audio/audio.c index 320035c0484..32b2b882f80 100644 --- a/audio/audio.c +++ b/audio/audio.c @@ -847,7 +847,8 @@ static void audio_timer (void *opaque) /* * Public API */ -size_t AUD_write(AudioBackend *be, SWVoiceOut *sw, void *buf, size_t size) +static size_t audio_mixeng_backend_write(AudioBackend *be, SWVoiceOut *sw, + void *buf, size_t size) { HWVoiceOut *hw; =20 @@ -858,7 +859,7 @@ size_t AUD_write(AudioBackend *be, SWVoiceOut *sw, void= *buf, size_t size) hw =3D sw->hw; =20 if (!hw->enabled) { - dolog ("Writing to disabled voice %s\n", SW_NAME (sw)); + dolog("Writing to disabled voice %s\n", SW_NAME(sw)); return 0; } =20 @@ -869,7 +870,15 @@ size_t AUD_write(AudioBackend *be, SWVoiceOut *sw, voi= d *buf, size_t size) } } =20 -size_t AUD_read(AudioBackend *be, SWVoiceIn *sw, void *buf, size_t size) +size_t AUD_write(AudioBackend *be, SWVoiceOut *sw, void *buf, size_t size) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->write(be, sw, buf, size); +} + +static size_t audio_mixeng_backend_read(AudioBackend *be, SWVoiceIn *sw, + void *buf, size_t size) { HWVoiceIn *hw; =20 @@ -880,7 +889,7 @@ size_t AUD_read(AudioBackend *be, SWVoiceIn *sw, void *= buf, size_t size) hw =3D sw->hw; =20 if (!hw->enabled) { - dolog ("Reading from disabled voice %s\n", SW_NAME (sw)); + dolog("Reading from disabled voice %s\n", SW_NAME(sw)); return 0; } =20 @@ -889,9 +898,17 @@ size_t AUD_read(AudioBackend *be, SWVoiceIn *sw, void = *buf, size_t size) } else { return hw->pcm_ops->read(hw, buf, size); } + } =20 -int AUD_get_buffer_size_out(AudioBackend *be, SWVoiceOut *sw) +size_t AUD_read(AudioBackend *be, SWVoiceIn *sw, void *buf, size_t size) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->read(be, sw, buf, size); +} + +static int audio_mixeng_backend_get_buffer_size_out(AudioBackend *be, SWVo= iceOut *sw) { if (!sw) { return 0; @@ -904,7 +921,15 @@ int AUD_get_buffer_size_out(AudioBackend *be, SWVoiceO= ut *sw) return sw->hw->samples * sw->hw->info.bytes_per_frame; } =20 -void AUD_set_active_out(AudioBackend *be, SWVoiceOut *sw, bool on) +int AUD_get_buffer_size_out(AudioBackend *be, SWVoiceOut *sw) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->get_buffer_size_out(be, sw); +} + +static void audio_mixeng_backend_set_active_out(AudioBackend *be, SWVoiceO= ut *sw, + bool on) { HWVoiceOut *hw; =20 @@ -950,9 +975,17 @@ void AUD_set_active_out(AudioBackend *be, SWVoiceOut *= sw, bool on) } sw->active =3D on; } + } =20 -void AUD_set_active_in(AudioBackend *be, SWVoiceIn *sw, bool on) +void AUD_set_active_out(AudioBackend *be, SWVoiceOut *sw, bool on) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->set_active_out(be, sw, on); +} + +static void audio_mixeng_backend_set_active_in(AudioBackend *be, SWVoiceIn= *sw, bool on) { HWVoiceIn *hw; =20 @@ -997,6 +1030,13 @@ void AUD_set_active_in(AudioBackend *be, SWVoiceIn *s= w, bool on) } } =20 +void AUD_set_active_in(AudioBackend *be, SWVoiceIn *sw, bool on) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->set_active_in(be, sw, on); +} + static size_t audio_get_avail(SWVoiceIn *sw) { size_t live; @@ -1658,12 +1698,97 @@ static const char *audio_mixeng_backend_get_id(Audi= oBackend *be) return AUDIO_MIXENG_BACKEND(be)->dev->id; } =20 +static CaptureVoiceOut *audio_mixeng_backend_add_capture( + AudioBackend *be, + struct audsettings *as, + struct audio_capture_ops *ops, + void *cb_opaque); + +static void audio_mixeng_backend_del_capture( + AudioBackend *be, + CaptureVoiceOut *cap, + void *cb_opaque); + +static void audio_mixeng_backend_set_volume_out(AudioBackend *be, SWVoiceO= ut *sw, + Volume *vol); +static void audio_mixeng_backend_set_volume_in(AudioBackend *be, SWVoiceIn= *sw, + Volume *vol); + +SWVoiceOut *AUD_open_out( + AudioBackend *be, + SWVoiceOut *sw, + const char *name, + void *callback_opaque, + audio_callback_fn callback_fn, + const struct audsettings *as) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->open_out(be, sw, name, callback_opaque, callback_fn, as); +} + +SWVoiceIn *AUD_open_in( + AudioBackend *be, + SWVoiceIn *sw, + const char *name, + void *callback_opaque, + audio_callback_fn callback_fn, + const struct audsettings *as) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->open_in(be, sw, name, callback_opaque, callback_fn, as); +} + +void AUD_close_out(AudioBackend *be, SWVoiceOut *sw) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->close_out(be, sw); +} + +void AUD_close_in(AudioBackend *be, SWVoiceIn *sw) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->close_in(be, sw); +} + +bool AUD_is_active_out(AudioBackend *be, SWVoiceOut *sw) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->is_active_out(be, sw); +} + +bool AUD_is_active_in(AudioBackend *be, SWVoiceIn *sw) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->is_active_in(be, sw); +} + static void audio_mixeng_backend_class_init(ObjectClass *klass, const void= *data) { AudioBackendClass *be =3D AUDIO_BACKEND_CLASS(klass); =20 be->realize =3D audio_mixeng_backend_realize; be->get_id =3D audio_mixeng_backend_get_id; + be->open_in =3D audio_mixeng_backend_open_in; + be->open_out =3D audio_mixeng_backend_open_out; + be->close_in =3D audio_mixeng_backend_close_in; + be->close_out =3D audio_mixeng_backend_close_out; + be->is_active_out =3D audio_mixeng_backend_is_active_out; + be->is_active_in =3D audio_mixeng_backend_is_active_in; + be->set_active_out =3D audio_mixeng_backend_set_active_out; + be->set_active_in =3D audio_mixeng_backend_set_active_in; + be->set_volume_out =3D audio_mixeng_backend_set_volume_out; + be->set_volume_in =3D audio_mixeng_backend_set_volume_in; + be->read =3D audio_mixeng_backend_read; + be->write =3D audio_mixeng_backend_write; + be->get_buffer_size_out =3D audio_mixeng_backend_get_buffer_size_out; + be->add_capture =3D audio_mixeng_backend_add_capture; + be->del_capture =3D audio_mixeng_backend_del_capture; } =20 static void audio_mixeng_backend_init(Object *obj) @@ -1863,12 +1988,11 @@ bool AUD_backend_check(AudioBackend **be, Error **e= rrp) =20 static struct audio_pcm_ops capture_pcm_ops; =20 -CaptureVoiceOut *AUD_add_capture( +static CaptureVoiceOut *audio_mixeng_backend_add_capture( AudioBackend *be, struct audsettings *as, struct audio_capture_ops *ops, - void *cb_opaque - ) + void *cb_opaque) { AudioMixengBackend *s =3D AUDIO_MIXENG_BACKEND(be); CaptureVoiceOut *cap; @@ -1938,7 +2062,21 @@ CaptureVoiceOut *AUD_add_capture( return cap; } =20 -void AUD_del_capture(AudioBackend *be, CaptureVoiceOut *cap, void *cb_opaq= ue) +CaptureVoiceOut *AUD_add_capture( + AudioBackend *be, + struct audsettings *as, + struct audio_capture_ops *ops, + void *cb_opaque) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + return klass->add_capture(be, as, ops, cb_opaque); +} + +static void audio_mixeng_backend_del_capture( + AudioBackend *be, + CaptureVoiceOut *cap, + void *cb_opaque) { struct capture_callback *cb; =20 @@ -1977,7 +2115,15 @@ void AUD_del_capture(AudioBackend *be, CaptureVoiceO= ut *cap, void *cb_opaque) } } =20 -void AUD_set_volume_out(AudioBackend *be, SWVoiceOut *sw, Volume *vol) +void AUD_del_capture(AudioBackend *be, CaptureVoiceOut *cap, void *cb_opaq= ue) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + klass->del_capture(be, cap, cb_opaque); +} + +static void audio_mixeng_backend_set_volume_out(AudioBackend *be, SWVoiceO= ut *sw, + Volume *vol) { if (sw) { HWVoiceOut *hw =3D sw->hw; @@ -1993,7 +2139,15 @@ void AUD_set_volume_out(AudioBackend *be, SWVoiceOut= *sw, Volume *vol) } } =20 -void AUD_set_volume_in(AudioBackend *be, SWVoiceIn *sw, Volume *vol) +void AUD_set_volume_out(AudioBackend *be, SWVoiceOut *sw, Volume *vol) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + klass->set_volume_out(be, sw, vol); +} + +static void audio_mixeng_backend_set_volume_in(AudioBackend *be, SWVoiceIn= *sw, + Volume *vol) { if (sw) { HWVoiceIn *hw =3D sw->hw; @@ -2009,6 +2163,13 @@ void AUD_set_volume_in(AudioBackend *be, SWVoiceIn *= sw, Volume *vol) } } =20 +void AUD_set_volume_in(AudioBackend *be, SWVoiceIn *sw, Volume *vol) +{ + AudioBackendClass *klass =3D AUDIO_BACKEND_GET_CLASS(be); + + klass->set_volume_in(be, sw, vol); +} + static void audio_create_pdos(Audiodev *dev) { switch (dev->driver) { --=20 2.53.0