core/audio: Move audio_play() out of the audio namespace

Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>

core/audio.cpp

@@ -28,6 +28,21 @@ static void __audio_save()
 	file_close(&audio_file);
 }
 
+static GstState __audio_cur_state()
+{
+	GstState cur;
+	gst_element_get_state(audio_player, &cur, NULL, GST_CLOCK_TIME_NONE);
+	return cur;
+}
+
+static bool __audio_change_state(GstState state)
+{
+	GstStateChangeReturn ret = GST_STATE_CHANGE_FAILURE;
+	if (__audio_cur_state() != state)
+		ret = gst_element_set_state(audio_player, state);
+	return ret != GST_STATE_CHANGE_FAILURE;
+}
+
 static bool __audio_load(struct track *track, GstState state)
 {
 	gchar *path, *uri;
@@ -41,7 +56,7 @@ static bool __audio_load(struct track *track, GstState state)
 
 	gst_element_set_state(audio_player, GST_STATE_NULL);
 	g_object_set(G_OBJECT(audio_player), "uri", uri, NULL);
-	gst_element_set_state(audio_player, state);
+	__audio_change_state(state);
 	audio_ops->on_load(track, state);
 
 	__audio_save();
@@ -133,10 +148,11 @@ bool audio_load(struct track *track)
 	return false;
 }
 
-void audio :: play()
+bool audio_play()
 {
-	if (audio_track)
-		cur_driver->play();
+	if (!audio_track)
+		return false;
+	return __audio_change_state(GST_STATE_PLAYING);
 }
 
 void audio :: pause()

gui/gst.cpp

@@ -76,14 +76,6 @@ static void on_load(struct track *track, GstState state)
 class GSTDriver : public AudioDriver
 {
 public:
-	void play()
-	{
-		if (gst_change_state(GST_STATE_PLAYING)) {
-			o_play->hide();
-			o_pause->show();
-		}
-	}
-
 	void pause()
 	{
 		if (gst_change_state(GST_STATE_PAUSED)) {
@@ -166,7 +158,7 @@ static gboolean on_gst_message(GstBus *bus, GstMessage *message, gpointer data)
 		if (parse_gst_error(message) < 0)
 			break;
 		audio :: next();
-		audio :: play();
+		gst :: play();
 		break;
 	case GST_MESSAGE_EOS:
 		gst_driver->eos();
@@ -210,10 +202,18 @@ static bool on_timeout()
 
 
 
+void gst :: play()
+{
+	if (audio_play()) {
+		o_play->hide();
+		o_pause->show();
+	}
+}
+
 void gst :: next()
 {
 	audio :: next();
-	audio :: play();
+	gst :: play();
 }
 
 void gst :: toggle()
@@ -221,7 +221,7 @@ void gst :: toggle()
 	if (gst_driver->is_playing())
 		audio :: pause();
 	else
-		audio :: play();
+		gst :: play();
 }
 
 void gst :: init_pre()
@@ -247,7 +247,7 @@ void gst :: init_pre()
 
 	o_next->signal_clicked().connect(sigc::ptr_fun(next));
 	o_pause->signal_clicked().connect(sigc::ptr_fun(audio :: pause));
-	o_play->signal_clicked().connect(sigc::ptr_fun(audio :: play));
+	o_play->signal_clicked().connect(sigc::ptr_fun(gst :: play));
 	o_prev->signal_clicked().connect(sigc::ptr_fun(audio :: prev));
 	o_seek->signal_change_value().connect(sigc::ptr_fun(on_seek));
 	o_stop->signal_clicked().connect(sigc::ptr_fun(audio :: stop));

gui/queue/model.cpp

@@ -9,6 +9,7 @@ extern "C" {
 #include <core/string.h>
 }
 #include <gui/queue/model.h>
+#include <gui/ocarina.h>
 #include <stdlib.h>
 
 
@@ -58,7 +59,7 @@ void QueueModel::on_path_selected(const Gtk::TreePath &path)
 {
 	audio_load(track_get(path_to_id(path)));
 	queue_selected(_queue, path[0]);
-	audio :: play();
+	gst :: play();
 }
 
 unsigned int QueueModel :: iter_to_id(const Gtk::TreeIter &iter) const

include/core/audio.h

@@ -31,11 +31,6 @@ public:
 	virtual ~AudioDriver(); /**< AudioDriver destructor.          */
 
 
-	/**
-	 * Called to begin playback on the currently loaded track.
-	 */
-	virtual void play() = 0;
-
 	/**
 	 * Called to pause playback on the currently loaded track.
 	 */
@@ -83,7 +78,6 @@ public:
 namespace audio
 {
 
-	void play();  /**< Begin playback.              */
 	void pause(); /**< Pause playback.              */
 
 	/**
@@ -157,5 +151,8 @@ void audio_deinit();
 /* Called to load a track for playback. */
 bool audio_load(struct track *);
 
+/* Called to begin playback. */
+bool audio_play();
+
 GstElement *audio_get_player();
 #endif /* OCARINA_CORE_AUDIO_H */

include/gui/ocarina.h

@@ -43,6 +43,7 @@ void post_init_queue_tabs();
 /* gst.cpp */
 namespace gst
 {
+	void play();
 	void next();
 	void toggle();
 	void init_pre();

tests/core/audio.cpp

@@ -25,7 +25,6 @@ public:
 	TestDriver() : playing(false), cur_pos(0), cur_duration(0) {}
 	~TestDriver() {};
 
-	void play()  { playing = true;  }
 	void pause() { playing = false; }
 
 	bool is_playing() { return playing; }
@@ -62,7 +61,9 @@ static void test_init()
 	core :: init(NULL, NULL, &test_init_data);
 
 	test_equal(audio_load(NULL), false);
+	test_equal(audio_play(), false);
 	test_equal(audio :: current_track(), NULL);
+	test_equal(load_count, 0);
 
 	collection_add("tests/Music/Hyrule Symphony");
 	while (idle_run_task()) {};
@@ -103,7 +104,7 @@ void test_pre_init()
 
 	test_equal(audio :: current_track(), TRACK_NULL);
 
-	audio :: play();
+	audio_play();
 	test_equal(driver->playing, false);
 
 	driver->playing = true;
@@ -150,7 +151,7 @@ void test_playback_controls()
 {
 	TestDriver *driver = (TestDriver *)audio :: get_driver();
 
-	audio :: play();
+	driver->playing = audio_play();
 	test_equal(driver->playing, true);
 
 	audio :: pause();
@@ -160,7 +161,7 @@ void test_playback_controls()
 	test_equal(driver->cur_pos, (long)4242);
 	test_equal(audio :: position(), (long)4242);
 
-	audio :: play();
+	audio_play();
 	audio :: stop();
 	test_equal(driver->playing, false);
 	test_equal(driver->cur_pos, (long)0);
@@ -183,7 +184,7 @@ void test_track_controls()
 	test_not_equal(audio :: current_track()->tr_dbe.dbe_index, (unsigned)2);
 	test_equal(driver->is_playing(), false);
 
-	audio :: play();
+	audio_play();
 	audio :: next();
 	test_equal(driver->is_playing(), true);
 
@@ -210,7 +211,7 @@ void test_autopause()
 {
 	TestDriver *driver = (TestDriver *)audio :: get_driver();
 
-	audio :: play();
+	audio_play();
 	test_equal(audio :: pause_enabled(), false);
 	test_equal(audio :: pause_count(), (unsigned)0);