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authorMax Kellermann <max@duempel.org>2013-01-07 08:54:26 +0100
committerMax Kellermann <max@duempel.org>2013-01-07 09:05:06 +0100
commitc3c776bc6aa9f550a832ff3a2ace4f7980f6a791 (patch)
tree53452f78ad1ad5c384224e4279ddbab88197b664 /src/MixerAll.cxx
parent9f4b906e6cb61def8afddc2ed9bdf826e52e96d2 (diff)
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mixer_all: convert to C++
Diffstat (limited to 'src/MixerAll.cxx')
-rw-r--r--src/MixerAll.cxx182
1 files changed, 182 insertions, 0 deletions
diff --git a/src/MixerAll.cxx b/src/MixerAll.cxx
new file mode 100644
index 000000000..a214c1e24
--- /dev/null
+++ b/src/MixerAll.cxx
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "MixerAll.hxx"
+#include "pcm_volume.h"
+#include "OutputAll.hxx"
+
+extern "C" {
+#include "mixer_control.h"
+#include "output_internal.h"
+#include "mixer_api.h"
+}
+
+#include <glib.h>
+
+#include <assert.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "mixer"
+
+static int
+output_mixer_get_volume(unsigned i)
+{
+ struct audio_output *output;
+ struct mixer *mixer;
+ int volume;
+ GError *error = NULL;
+
+ assert(i < audio_output_count());
+
+ output = audio_output_get(i);
+ if (!output->enabled)
+ return -1;
+
+ mixer = output->mixer;
+ if (mixer == NULL)
+ return -1;
+
+ volume = mixer_get_volume(mixer, &error);
+ if (volume < 0 && error != NULL) {
+ g_warning("Failed to read mixer for '%s': %s",
+ output->name, error->message);
+ g_error_free(error);
+ }
+
+ return volume;
+}
+
+int
+mixer_all_get_volume(void)
+{
+ unsigned count = audio_output_count(), ok = 0;
+ int volume, total = 0;
+
+ for (unsigned i = 0; i < count; i++) {
+ volume = output_mixer_get_volume(i);
+ if (volume >= 0) {
+ total += volume;
+ ++ok;
+ }
+ }
+
+ if (ok == 0)
+ return -1;
+
+ return total / ok;
+}
+
+static bool
+output_mixer_set_volume(unsigned i, unsigned volume)
+{
+ struct audio_output *output;
+ struct mixer *mixer;
+ bool success;
+ GError *error = NULL;
+
+ assert(i < audio_output_count());
+ assert(volume <= 100);
+
+ output = audio_output_get(i);
+ if (!output->enabled)
+ return false;
+
+ mixer = output->mixer;
+ if (mixer == NULL)
+ return false;
+
+ success = mixer_set_volume(mixer, volume, &error);
+ if (!success && error != NULL) {
+ g_warning("Failed to set mixer for '%s': %s",
+ output->name, error->message);
+ g_error_free(error);
+ }
+
+ return success;
+}
+
+bool
+mixer_all_set_volume(unsigned volume)
+{
+ bool success = false;
+ unsigned count = audio_output_count();
+
+ assert(volume <= 100);
+
+ for (unsigned i = 0; i < count; i++)
+ success = output_mixer_set_volume(i, volume)
+ || success;
+
+ return success;
+}
+
+static int
+output_mixer_get_software_volume(unsigned i)
+{
+ struct audio_output *output;
+ struct mixer *mixer;
+
+ assert(i < audio_output_count());
+
+ output = audio_output_get(i);
+ if (!output->enabled)
+ return -1;
+
+ mixer = output->mixer;
+ if (mixer == NULL || mixer->plugin != &software_mixer_plugin)
+ return -1;
+
+ return mixer_get_volume(mixer, NULL);
+}
+
+int
+mixer_all_get_software_volume(void)
+{
+ unsigned count = audio_output_count(), ok = 0;
+ int volume, total = 0;
+
+ for (unsigned i = 0; i < count; i++) {
+ volume = output_mixer_get_software_volume(i);
+ if (volume >= 0) {
+ total += volume;
+ ++ok;
+ }
+ }
+
+ if (ok == 0)
+ return -1;
+
+ return total / ok;
+}
+
+void
+mixer_all_set_software_volume(unsigned volume)
+{
+ unsigned count = audio_output_count();
+
+ assert(volume <= PCM_VOLUME_1);
+
+ for (unsigned i = 0; i < count; i++) {
+ struct audio_output *output = audio_output_get(i);
+ if (output->mixer != NULL &&
+ output->mixer->plugin == &software_mixer_plugin)
+ mixer_set_volume(output->mixer, volume, NULL);
+ }
+}