From b83bcd091e0907863c36ae8bc621a8676e545229 Mon Sep 17 00:00:00 2001
From: George Kiagiadakis <george.kiagiadakis@collabora.com>
Date: Tue, 11 Jun 2019 13:29:20 +0300
Subject: [PATCH] softdsp-endpoint: automatically deselect other endpoints when
one is selected
Only one endpoint of a certain media class can be selected at a time
---
modules/module-pw-audio-softdsp-endpoint.c | 41 ++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/modules/module-pw-audio-softdsp-endpoint.c b/modules/module-pw-audio-softdsp-endpoint.c
index c7fe9526..4d2f0be2 100644
--- a/modules/module-pw-audio-softdsp-endpoint.c
+++ b/modules/module-pw-audio-softdsp-endpoint.c
@@ -619,9 +619,50 @@ endpoint_factory (WpFactory * factory, GType type, GVariant * properties)
return ep;
}
+static void
+global_endpoint_notify_control_value (WpEndpoint * ep, guint control_id,
+ WpCore * core)
+{
+ WpPwAudioSoftdspEndpoint *sdspep = WP_PW_AUDIO_SOFTDSP_ENDPOINT (ep);
+ g_autoptr (GPtrArray) a = NULL;
+ int i;
+
+ /* when an endpoint becomes "selected", unselect
+ * all other endpoints of the same media class */
+ if (control_id == CONTROL_SELECTED && sdspep->selected) {
+ g_debug ("selected: %p", ep);
+ a = wp_endpoint_find (core, wp_endpoint_get_media_class (ep));
+
+ for (i = 0; i < a->len; i++) {
+ WpEndpoint *other = g_ptr_array_index (a, i);
+ if (!WP_PW_IS_AUDIO_SOFTDSP_ENDPOINT (ep)
+ || other == ep
+ || !WP_PW_AUDIO_SOFTDSP_ENDPOINT (other)->selected)
+ continue;
+
+ g_debug ("unselecting %p", other);
+ WP_PW_AUDIO_SOFTDSP_ENDPOINT (other)->selected = FALSE;
+ wp_endpoint_notify_control_value (other, CONTROL_SELECTED);
+ }
+ }
+}
+
+static void
+global_endpoint_added (WpCore *core, GQuark key, WpEndpoint *ep, gpointer data)
+{
+ if (WP_PW_IS_AUDIO_SOFTDSP_ENDPOINT (ep)) {
+ g_debug ("connecting to notify-control-value for %p", ep);
+ g_signal_connect (ep, "notify-control-value",
+ (GCallback) global_endpoint_notify_control_value, core);
+ }
+}
+
void
wireplumber__module_init (WpModule * module, WpCore * core, GVariant * args)
{
/* Register the softdsp endpoint */
wp_factory_new (core, "pw-audio-softdsp-endpoint", endpoint_factory);
+
+ g_signal_connect (core, "global-added::endpoint",
+ (GCallback) global_endpoint_added, NULL);
}
--
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