From 57de90e3b8958b4d5edf1bd0145f98623768caa9 Mon Sep 17 00:00:00 2001
From: waker <wakeroid@gmail.com>
Date: Wed, 30 Mar 2011 22:22:56 +0200
Subject: get rid of frameupdate event; mutex+cond based message pump without
 usleep

---
 deadbeef.h            |  1 -
 main.c                |  5 +++--
 messagepump.c         | 10 ++++++++++
 messagepump.h         |  2 +-
 plugins/gtkui/gtkui.c | 12 ++++++------
 5 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/deadbeef.h b/deadbeef.h
index 4c4d0f88..209911b8 100644
--- a/deadbeef.h
+++ b/deadbeef.h
@@ -218,7 +218,6 @@ typedef int (*DB_callback_t)(DB_event_t *, uintptr_t data);
 
 // events
 enum {
-    DB_EV_FRAMEUPDATE = 0, // ticks around 20 times per second, but ticker may stop sometimes
     DB_EV_SONGCHANGED = 1, // triggers when song was just changed
     DB_EV_SONGSTARTED = 2, // triggers when song started playing (for scrobblers and such)
     DB_EV_SONGFINISHED = 3, // triggers when song finished playing (for scrobblers and such)
diff --git a/main.c b/main.c
index 636542ac..d61b772f 100644
--- a/main.c
+++ b/main.c
@@ -389,6 +389,7 @@ player_mainloop (void) {
         uintptr_t ctx;
         uint32_t p1;
         uint32_t p2;
+        messagepump_wait ();
         while (messagepump_pop(&msg, &ctx, &p1, &p2) != -1) {
             DB_output_t *output = plug_get_output ();
             switch (msg) {
@@ -455,8 +456,8 @@ player_mainloop (void) {
                 break;
             }
         }
-        usleep(50000);
-        plug_trigger_event (DB_EV_FRAMEUPDATE, 0);
+        //usleep(50000);
+        //plug_trigger_event (DB_EV_FRAMEUPDATE, 0);
     }
 }
 
diff --git a/messagepump.c b/messagepump.c
index 368f0739..931b67db 100644
--- a/messagepump.c
+++ b/messagepump.c
@@ -34,6 +34,7 @@ static message_t *mfree;
 static message_t *mqueue;
 static message_t *mqtail;
 static uintptr_t mutex;
+static uintptr_t cond;
 
 static void
 messagepump_reset (void);
@@ -42,6 +43,7 @@ int
 messagepump_init (void) {
     messagepump_reset ();
     mutex = mutex_create ();
+    cond = cond_create ();
     return 0;
 }
 
@@ -51,6 +53,7 @@ messagepump_free () {
     messagepump_reset ();
     mutex_unlock (mutex);
     mutex_free (mutex);
+    cond_free (cond);
 }
 
 static void
@@ -88,9 +91,16 @@ messagepump_push (uint32_t id, uintptr_t ctx, uint32_t p1, uint32_t p2) {
     msg->p1 = p1;
     msg->p2 = p2;
     mutex_unlock (mutex);
+    cond_signal (cond);
     return 0;
 }
 
+void
+messagepump_wait (void) {
+    cond_wait (cond, mutex);
+    mutex_unlock (mutex);
+}
+
 int
 messagepump_pop (uint32_t *id, uintptr_t *ctx, uint32_t *p1, uint32_t *p2) {
     if (!mqueue) {
diff --git a/messagepump.h b/messagepump.h
index ec5a18a4..b22da711 100644
--- a/messagepump.h
+++ b/messagepump.h
@@ -24,6 +24,6 @@ int messagepump_init (void);
 void messagepump_free (void);
 int messagepump_push (uint32_t id, uintptr_t ctx, uint32_t p1, uint32_t p2);
 int messagepump_pop (uint32_t *id, uintptr_t *ctx, uint32_t *p1, uint32_t *p2);
-//int messagepump_hasmessages (void);
+void messagepump_wait (void);
 
 #endif // __MESSAGEPUMP_H
diff --git a/plugins/gtkui/gtkui.c b/plugins/gtkui/gtkui.c
index fb2c157b..f27f1ecb 100644
--- a/plugins/gtkui/gtkui.c
+++ b/plugins/gtkui/gtkui.c
@@ -531,11 +531,11 @@ gtkui_on_playlistswitch (DB_event_t *ev, uintptr_t data) {
     return 0;
 }
 
-static int
-gtkui_on_frameupdate (DB_event_t *ev, uintptr_t data) {
-    g_idle_add (update_songinfo, NULL);
+static gboolean
+gtkui_on_frameupdate (uintptr_t data) {
+    update_songinfo (NULL);
 
-    return 0;
+    return TRUE;
 }
 
 static gboolean
@@ -1037,12 +1037,13 @@ gtkui_thread (void *ctx) {
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_TRACKINFOCHANGED, DB_CALLBACK (gtkui_on_trackinfochanged), 0);
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_PAUSED, DB_CALLBACK (gtkui_on_paused), 0);
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_PLAYLISTCHANGED, DB_CALLBACK (gtkui_on_playlistchanged), 0);
-    deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_FRAMEUPDATE, DB_CALLBACK (gtkui_on_frameupdate), 0);
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_VOLUMECHANGED, DB_CALLBACK (gtkui_on_volumechanged), 0);
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_CONFIGCHANGED, DB_CALLBACK (gtkui_on_configchanged), 0);
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_OUTPUTCHANGED, DB_CALLBACK (gtkui_on_outputchanged), 0);
     deadbeef->ev_subscribe (DB_PLUGIN (&plugin), DB_EV_PLAYLISTSWITCH, DB_CALLBACK (gtkui_on_playlistswitch), 0);
 
+    g_timeout_add (100, gtkui_on_frameupdate, NULL);
+
     char str[600];
     deadbeef->pl_format_title (NULL, -1, str, sizeof (str), -1, deadbeef->conf_get_str ("gtkui.titlebar_stopped", "DeaDBeeF-%V"));
     gtk_window_set_title (GTK_WINDOW (mainwin), str);
@@ -1233,7 +1234,6 @@ gtkui_stop (void) {
     deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_TRACKINFOCHANGED, DB_CALLBACK (gtkui_on_trackinfochanged), 0);
     deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_PAUSED, DB_CALLBACK (gtkui_on_paused), 0);
     deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_PLAYLISTCHANGED, DB_CALLBACK (gtkui_on_playlistchanged), 0);
-    deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_FRAMEUPDATE, DB_CALLBACK (gtkui_on_frameupdate), 0);
     deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_VOLUMECHANGED, DB_CALLBACK (gtkui_on_volumechanged), 0);
     deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_CONFIGCHANGED, DB_CALLBACK (gtkui_on_configchanged), 0);
     deadbeef->ev_unsubscribe (DB_PLUGIN (&plugin), DB_EV_OUTPUTCHANGED, DB_CALLBACK (gtkui_on_outputchanged), 0);
-- 
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