Alsa based volume control API, stealed from gnome-settings-daemon. #8375

2008-09-13 13:45:47 +02:00
parent 388f74a56d
commit be014cc270
8 changed files with 641 additions and 1 deletions
@@ -0,0 +1,127 @@
+/* acme-volume.c
+
+   Copyright (C) 2002, 2003 Bastien Nocera
+
+   The Gnome Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The Gnome Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the Gnome Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+
+   Author: Bastien Nocera <hadess@hadess.net>
+ */
+
+#ifdef HAVE_CONFIG
+#include "config.h"
+#endif
+#include "acme-volume.h"
+#ifdef HAVE_OSS
+#include "acme-volume-oss.h"
+#endif
+#ifdef HAVE_ALSA
+#include "acme-volume-alsa.h"
+#endif
+#ifdef HAVE_GSTREAMER
+#include "acme-volume-gstreamer.h"
+#endif
+
+G_DEFINE_TYPE (AcmeVolume, acme_volume, G_TYPE_OBJECT)
+
+static void
+acme_volume_class_init (AcmeVolumeClass *klass)
+{
+}
+
+static void
+acme_volume_init (AcmeVolume *vol)
+{
+}
+
+int
+acme_volume_get_volume (AcmeVolume *self)
+{
+	g_return_val_if_fail (self != NULL, 0);
+	g_return_val_if_fail (ACME_IS_VOLUME (self), 0);
+
+	return ACME_VOLUME_GET_CLASS (self)->get_volume (self);
+}
+
+void
+acme_volume_set_volume (AcmeVolume *self, int val)
+{
+	g_return_if_fail (self != NULL);
+	g_return_if_fail (ACME_IS_VOLUME (self));
+
+	ACME_VOLUME_GET_CLASS (self)->set_volume (self, val);
+}
+
+gboolean
+acme_volume_get_mute (AcmeVolume *self)
+{
+	g_return_val_if_fail (self != NULL, FALSE);
+	g_return_val_if_fail (ACME_IS_VOLUME (self), FALSE);
+
+	return ACME_VOLUME_GET_CLASS (self)->get_mute (self);
+}
+
+void
+acme_volume_set_mute (AcmeVolume *self, gboolean val)
+{
+	g_return_if_fail (self != NULL);
+	g_return_if_fail (ACME_IS_VOLUME (self));
+
+	ACME_VOLUME_GET_CLASS (self)->set_mute (self, val);
+}
+
+void
+acme_volume_mute_toggle (AcmeVolume *self)
+{
+	gboolean muted;
+
+	g_return_if_fail (self != NULL);
+	g_return_if_fail (ACME_IS_VOLUME (self));
+
+	muted = ACME_VOLUME_GET_CLASS (self)->get_mute (self);
+	ACME_VOLUME_GET_CLASS (self)->set_mute (self, !muted);
+}
+
+int
+acme_volume_get_threshold (AcmeVolume *self)
+{
+	g_return_val_if_fail (self != NULL, 0);
+	g_return_val_if_fail (ACME_IS_VOLUME (self), 0);
+
+	return ACME_VOLUME_GET_CLASS (self)->get_threshold (self);
+}
+
+AcmeVolume *acme_volume_new (void)
+{
+	AcmeVolume *vol;
+
+#ifdef HAVE_GSTREAMER
+	vol = ACME_VOLUME (g_object_new (acme_volume_gstreamer_get_type (), NULL));
+	return vol;
+#endif
+#ifdef HAVE_ALSA
+	vol = ACME_VOLUME  (g_object_new (acme_volume_alsa_get_type (), NULL));
+	if (vol != NULL && ACME_VOLUME_ALSA (vol)->_priv != NULL)
+		return vol;
+	if (ACME_VOLUME_ALSA (vol)->_priv == NULL)
+		g_object_unref (vol);
+#endif
+#ifdef HAVE_OSS
+	vol = ACME_VOLUME  (g_object_new (acme_volume_oss_get_type (), NULL));
+	return vol;
+#endif
+	return NULL;
+}
+