no mutex needed for polling - release

components/display/ST77xx.c

@@ -90,7 +90,7 @@ static void Update16( struct GDS_Device* Device ) {
 			for (int i = FirstRow; i <= LastRow; i++) {
 				memcpy(optr, Private->Shadowbuffer + (i * Device->Width + FirstCol) * 2, ChunkSize);
 				optr += ChunkSize;
-				if (optr - Private->iRAM < PAGE_BLOCK && i < LastRow) continue;
+				if (optr - Private->iRAM <= (PAGE_BLOCK - ChunkSize) && i < LastRow) continue;
 				Device->WriteData(Device, Private->iRAM, optr - Private->iRAM);
 				optr = Private->iRAM;
 			}
@@ -157,7 +157,7 @@ static void Update24( struct GDS_Device* Device ) {
 			for (int i = FirstRow; i <= LastRow; i++) {
 				memcpy(optr, Private->Shadowbuffer + (i * Device->Width + FirstCol) * 3, ChunkSize);
 				optr += ChunkSize;
-				if (optr - Private->iRAM < PAGE_BLOCK && i < LastRow) continue;
+				if (optr - Private->iRAM <= (PAGE_BLOCK - ChunkSize) && i < LastRow) continue;
 				Device->WriteData(Device, Private->iRAM, optr - Private->iRAM);
 				optr = Private->iRAM;
 			}	

components/squeezelite/display.c

@@ -628,8 +628,9 @@ static void grfe_handler( u8_t *data, int len) {
 	
 	scroller.active = false;
 	
-	// visu has priority when full screen on small screens
-	if ((visu.mode & VISU_ESP32) && !visu.col && visu.row < displayer.height) {
+	// full screen artwork or for small screen, full screen visu has priority
+	if (((visu.mode & VISU_ESP32) && !visu.col && visu.row < displayer.height) ||
+		(artwork.enable && artwork.x == 0 && artwork.y == 0)) {
 		xSemaphoreGive(displayer.mutex);
 		return;
 	}	
@@ -751,8 +752,11 @@ static void grfg_handler(u8_t *data, int len) {
 	
 	LOG_DEBUG("gfrg s:%hu w:%hu (len:%u)", htons(pkt->screen), htons(pkt->width), len);
 
-	// on small screen, visu has priority when full screen	
-	if ((visu.mode & VISU_ESP32) && !visu.col && visu.row < displayer.height) return;
+	// full screen artwork or for small screen, visu has priority when full screen	
+	if (((visu.mode & VISU_ESP32) && !visu.col && visu.row < displayer.height) || 
+		(artwork.enable && artwork.x == 0 && artwork.y == 0)) {
+		return;
+	}	
 	
 	xSemaphoreTake(displayer.mutex, portMAX_DELAY);
 		
@@ -795,7 +799,7 @@ static void grfa_handler(u8_t *data, int len) {
 
 	// when using full screen visualizer on small screen there is a brief overlay	
 	artwork.enable = (length != 0);
-
+	
 	// just a config or an actual artwork	
 	if (length < 32) {
 		if (artwork.enable) {
@@ -840,8 +844,10 @@ static void grfa_handler(u8_t *data, int len) {
  * Update visualization bars
  */
 static void visu_update(void) {
-	// no need to protect against no woning the display as we are playing	
-	if (pthread_mutex_trylock(&visu_export.mutex)) return;
+	// no update when artwork is full screen (but no need to protect against not owning the display as we are playing	
+	if ((artwork.enable && artwork.x == 0 && artwork.y == 0) || pthread_mutex_trylock(&visu_export.mutex)) {
+		return;
+	}	
 	
 	int mode = visu.mode & ~VISU_ESP32;
 				

components/squeezelite/mad.c

@@ -243,8 +243,6 @@ static decode_state mad_decode(void) {
 		MAD(m, synth_frame, &m->synth, &m->frame);
 
 		if (decode.new_stream) {
-			// seems that mad can use some help in term of sync detection
-			if (m->stream.next_frame[0] != 0xff || (m->stream.next_frame[1] & 0xf0) != 0xf0) continue;
 			LOCK_O;
 			LOG_INFO("setting track_start");
 			output.next_sample_rate = decode_newstream(m->synth.pcm.samplerate, output.supported_rates);

components/squeezelite/stream.c

@@ -40,14 +40,23 @@
 static log_level loglevel;
 
 static struct buffer buf;
-static mutex_type poll_mutex;
 struct buffer *streambuf = &buf;
 
 #define LOCK     mutex_lock(streambuf->mutex)
 #define UNLOCK   mutex_unlock(streambuf->mutex)
-#define LOCK_L   mutex_lock(poll_mutex)
-#define UNLOCK_L mutex_unlock(poll_mutex)
 
+/* 
+When LMS sends a close/open sequence very quickly, the stream thread might
+still be waiting in the poll() on the closed socket. It is never recommended
+to have a thread closing a socket used by another thread but it works, as
+opposed to an infinite select(). 
+In stream_sock() a new socket is created and full OS will allocate a different
+one but on RTOS and simple IP stack, the same might be re-used and that causes
+an exception as a thread is already waiting on a newly allocated socket
+A simple variable that forces stream_sock() to wait until we are out of poll()
+is enough and much faster than a mutex 
+*/
+static bool polling;
 static sockfd fd;
 
 struct streamstate stream;
@@ -190,7 +199,6 @@ static void *stream_thread() {
 
 		} else {
 
-			LOCK_L;
 			pollinfo.fd = fd;
 			pollinfo.events = POLLIN;
 			if (stream.state == SEND_HEADERS) {
@@ -199,10 +207,12 @@ static void *stream_thread() {
 		}
 
 		UNLOCK;
+		// no mutex needed - we just want to know if we are inside poll()
+		polling = true;
 		
 		if (_poll(ssl, &pollinfo, 100)) {
 
-			UNLOCK_L;	
+			polling = false;
 			LOCK;
 
 			// check socket has not been closed while in poll
@@ -355,7 +365,7 @@ static void *stream_thread() {
 			UNLOCK;
 			
 		} else {
-			UNLOCK_L;
+			polling = false;
 			LOG_SDEBUG("poll timeout");
 		}
 	}
@@ -408,7 +418,6 @@ void stream_init(log_level level, unsigned stream_buf_size) {
 	*stream.header = '\0';
 
 	fd = -1;
-	mutex_create_p(poll_mutex);
 
 #if LINUX || FREEBSD
 	touch_memory(streambuf->buf, streambuf->size);
@@ -438,14 +447,13 @@ void stream_close(void) {
 #endif
 	free(stream.header);
 	buf_destroy(streambuf);
-	mutex_destroy(poll_mutex);
 }
 
 void stream_file(const char *header, size_t header_len, unsigned threshold) {
 	buf_flush(streambuf);
 
 	LOCK;
-
+	
 	stream.header_len = header_len;
 	memcpy(stream.header, header, header_len);
 	*(stream.header+header_len) = '\0';
@@ -480,6 +488,11 @@ void stream_file(const char *header, size_t header_len, unsigned threshold) {
 void stream_sock(u32_t ip, u16_t port, const char *header, size_t header_len, unsigned threshold, bool cont_wait) {
 	struct sockaddr_in addr;
 
+#if EMBEDDED
+	// wait till we are not polling anymore
+	while (polling && running) { usleep(10000);	}	
+#endif	
+	
 	int sock = socket(AF_INET, SOCK_STREAM, 0);
 
 	if (sock < 0) {
@@ -588,13 +601,11 @@ bool stream_disconnect(void) {
 		ssl = NULL;
 	}
 #endif
-	LOCK_L;
 	if (fd != -1) {
 		closesocket(fd);
 		fd = -1;
 		disc = true;
 	}
-	UNLOCK_L,
 	stream.state = STOPPED;
 	UNLOCK;
 	return disc;

plugin/SqueezeESP32/Graphics.pm

@@ -78,7 +78,7 @@ sub displayWidth {
 	if ($display->widthOverride) {
 		my $artwork = $prefs->client($client)->get('artwork');
 		if ($artwork->{'enable'} && $artwork->{'y'} < 32 && ($client->isPlaying || $client->isPaused)) {
-			return $artwork->{x} + ($display->modes->[$mode || 0]{_width} || 0);
+			return ($artwork->{x} || $display->widthOverride) + ($display->modes->[$mode || 0]{_width} || 0);
 		} else {
 			return $display->widthOverride + ($display->modes->[$mode || 0]{_width} || 0);
 		}	
@@ -113,9 +113,9 @@ sub build_modes {
 	my $artwork = $cprefs->get('artwork');
 	my $disp_width = $cprefs->get('width') || 128;
 
-	# if artwork is in main display, reduce width
-	my $width = ($artwork->{'enable'} && $artwork->{'y'} < 32) ? $artwork->{'x'} : $disp_width;
-	my $width_low = ($artwork->{'enable'} && ($artwork->{'y'} >= 32 || $disp_width - $artwork->{'x'} > 32)) ? $artwork->{'x'} : $disp_width;
+	# if artwork is in main display, reduce width but when artwork is (0,0) fake it
+	my $width = ($artwork->{'enable'} && $artwork->{'y'} < 32 && $artwork->{'x'}) ? $artwork->{'x'} : $disp_width;
+	my $width_low = ($artwork->{'enable'} && $artwork->{'x'} && ($artwork->{'y'} >= 32 || $disp_width - $artwork->{'x'} > 32)) ? $artwork->{'x'} : $disp_width;
 			
 	my $small_VU = $cprefs->get('small_VU');
 	my $spectrum = $cprefs->get('spectrum');

plugin/SqueezeESP32/Player.pm

@@ -13,6 +13,19 @@ my $sprefs = preferences('server');
 my $prefs = preferences('plugin.squeezeesp32');
 my $log   = logger('plugin.squeezeesp32');
 
+{
+	__PACKAGE__->mk_accessor('rw', 'tone_update');
+}
+
+sub new {
+	my $class = shift;
+	my $client = $class->SUPER::new(@_);
+	$client->init_accessor(
+		tone_update	=> 0,
+	);
+	return $client;
+}
+
 our $defaultPrefs = {
 	'analogOutMode'        => 0,
 	'bass'                 => 0,
@@ -44,7 +57,6 @@ sub hasIR { 1 }
 # TODO: add in settings when ready
 sub hasLineIn { 0 }
 sub hasHeadSubOut { 1 }
-# TODO: LMS sliders are hard-coded in html file from -23 to +23 
 sub maxTreble {	20 }
 sub minTreble {	-13 }
 sub maxBass { 20 }
@@ -54,7 +66,7 @@ sub init {
 	my $client = shift;
 	
 	if (!$handlersAdded) {
-
+	
 		# Add a handler for line-in/out status changes
 		Slim::Networking::Slimproto::addHandler( LIOS => \&lineInOutStatus );
 	
@@ -117,25 +129,41 @@ sub playerSettingsFrame {
 }
 
 sub bass {
-	return tone(2, @_);
-}	
-
-sub treble {
-	return tone(8, @_);
+	my ($client, $new) = @_;
+	my $value = $client->SUPER::bass($new);
+	
+	$client->update_equalizer($value, [2, 1, 3]) if defined $new;
+	
+	return $value;
 }
 
-sub tone {
-	my ($center, $client, $value) = @_;
-	my $equalizer = $prefs->client($client)->get('equalizer');
+sub treble {
+	my ($client, $new) = @_;
+	my $value = $client->SUPER::treble($new);
 	
-	if (defined($value)) {
-		$equalizer->[$center-1] = int($value * 0.2 + 0.5);
-		$equalizer->[$center] = int($value * 0.7 + 0.5);
-		$equalizer->[$center+1] = int($value * 0.1 + 0.5);
-		$prefs->client($client)->set('equalizer', $equalizer);
-	}
+	$client->update_equalizer($value, [8, 9, 7]) if defined $new;
 
-	return int($equalizer->[$center-1] * 0.2 + $equalizer->[$center] * 0.7 + $equalizer->[$center+1] * 0.1);
+	return $value;
+}
+
+sub update_equalizer {
+	my ($client, $value, $index) = @_;
+	return if $client->tone_update;
+	
+	my $equalizer = $prefs->client($client)->get('equalizer');	
+	$equalizer->[$index->[0]] = $value;
+	$equalizer->[$index->[1]] = int($value / 2 + 0.5);
+	$equalizer->[$index->[2]] = int($value / 4 + 0.5);
+	$prefs->client($client)->set('equalizer', $equalizer);
+}
+
+sub update_tones {
+	my ($client, $equalizer) = @_;
+
+	$client->tone_update(1);
+	$sprefs->client($client)->set('bass', int(($equalizer->[1] * 2 + $equalizer->[2] + $equalizer->[3] * 4) / 7 + 0.5));
+	$sprefs->client($client)->set('treble', int(($equalizer->[7] * 4 + $equalizer->[8] + $equalizer->[9] * 2) / 7 + 0.5));
+	$client->tone_update(0);	
 }
 
 sub update_artwork {
@@ -193,6 +221,11 @@ sub clear_artwork {
 	if ($artwork && $artwork->{'enable'}) {
 		main::INFOLOG && $log->is_info && $log->info("artwork stop/clear " . $request->getRequestString());
 		$client->pluginData('artwork_md5', '');
+		# refresh screen and disable artwork when artwork was full screen (hack)
+		if (!$artwork->{'x'} && !$artwork->{'y'}) {
+			$client->sendFrame(grfa => \("\x00"x4)) unless $artwork->{'x'} || $artwork->{'y'};
+			$client->display->update;
+		}	
 	}
 }
 

plugin/SqueezeESP32/PlayerSettings.pm

@@ -31,7 +31,7 @@ sub page {
 sub prefs {
 	my ($class, $client) = @_;
 	my @prefs;
-	push @prefs, qw(width small_VU) if $client->displayWidth;
+	push @prefs, qw(width small_VU) if defined $client->displayWidth;
 	return ($prefs->client($client), @prefs);
 }
 
@@ -41,7 +41,7 @@ sub handler {
 	my ($cprefs, @prefs) = $class->prefs($client);
 
 	if ($paramRef->{'saveSettings'}) {
-		if ($client->displayWidth) {
+		if (defined $client->displayWidth) {
 			$cprefs->set('small_VU', $paramRef->{'pref_small_VU'} || 15);
 			my $spectrum = {
 				scale => $paramRef->{'pref_spectrum_scale'} || 25,
@@ -73,9 +73,10 @@ sub handler {
 			$equalizer->[$i] = $paramRef->{"pref_equalizer.$i"} || 0;
 		}
 		$cprefs->set('equalizer', $equalizer);
+		$client->update_tones($equalizer);
 	}
 
-	if ($client->displayWidth) {
+	if (defined $client->displayWidth) {
 		# the Settings super class can't handle anything but scalar values
 		# we need to populate the $paramRef for the other prefs manually
 		$paramRef->{'pref_spectrum'} = $cprefs->get('spectrum');

plugin/SqueezeESP32/install.xml

@@ -10,6 +10,6 @@
   <name>PLUGIN_SQUEEZEESP32</name>
   <description>PLUGIN_SQUEEZEESP32_DESC</description>
   <module>Plugins::SqueezeESP32::Plugin</module>
-    <version>0.100</version>
+    <version>0.104</version>
   <creator>Philippe</creator>
 </extensions>

plugin/repo.xml

@@ -1,10 +1,10 @@
 <?xml version='1.0' standalone='yes'?>
 <extensions>
   <plugins>
-    <plugin version="0.100" name="SqueezeESP32" minTarget="7.9" maxTarget="*">
+    <plugin version="0.104" name="SqueezeESP32" minTarget="7.9" maxTarget="*">
       <link>https://github.com/sle118/squeezelite-esp32</link>
       <creator>Philippe</creator>
-      <sha>572fa8afeaa3bc3cfb245b8d42ba05739aec584b</sha>
+      <sha>79e505a30d7b6dbf43893acab176d57438e2a4a1</sha>
       <email>philippe_44@outlook.com</email>
       <desc lang="EN">SqueezeESP32 additional player id (100)</desc>
       <url>http://github.com/sle118/squeezelite-esp32/raw/master/plugin/SqueezeESP32.zip</url>