Merge remote-tracking branch 'origin/master' into master-cmake

Conflicts: components/raop/raop.c components/raop/rtp.c main/cmd_squeezelite.c
2025-12-06 11:36:59 +03:00 · 2020-03-08 09:54:50 -04:00
parent ca70068d88 ca702d1b90
commit 70aa420406
48 changed files with 951 additions and 481 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,3 +46,10 @@ endif()



+
+
+
+#   add_custom_target(size
+#        DEPENDS ${project_elf}
+#        COMMAND ${idf_size} ${mapfile}
+#        )
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ SPI,width=<pixels>,height=<pixels>,cs=<gpio>[,speed=<speed>][,HFlip][,VFlip][dri
 - VFlip and HFlip are optional can be used to change display orientation
 - Default speed is 8000000 (8MHz) but SPI can work up to 26MHz or even 40MHz

-Currently 128x32/64 I2C display like [this](https://www.buydisplay.com/i2c-blue-0-91-inch-oled-display-module-128x32-arduino-raspberry-pi) and [this](https://www.waveshare.com/wiki/1.3inch_OLED_HAT) are supported
+Currently 128x32/64 I2C and SPI display like [this](https://www.buydisplay.com/i2c-blue-0-91-inch-oled-display-module-128x32-arduino-raspberry-pi) and [this](https://www.waveshare.com/wiki/1.3inch_OLED_HAT) are supported

 The NVS parameter "metadata_config" sets how metadata is displayed for AirPlay and Bluetooth. Syntax is
 ```
--- a/components/codecs/CMakeLists.txt
+++ b/components/codecs/CMakeLists.txt
@@ -1,4 +1,4 @@
-idf_component_register(SRCS link_helper.c
+idf_component_register(SRC_DIRS . 
 					   INCLUDE_DIRS .  ./inc  inc/alac inc/faad2 inc/FLAC  inc/helix-aac inc/mad inc/ogg inc/opus inc/opusfile inc/resample16 inc/soxr inc/vorbis
 	                       REQUIRES esp_common platform_config freertos nvs_flash esp32 spi_flash newlib log pthread
 )
--- a/components/display/CMakeLists.txt
+++ b/components/display/CMakeLists.txt
@@ -1,28 +1,5 @@

-idf_component_register(SRCS display.c 
-							SH1106.c 
-							SSD1306.c 
-							SSD132x.c  
-							core/ifaces/default_if_i2c.c 
-							core/ifaces/default_if_spi.c 
-							core/gds_draw.c 
-							core/gds_font.c 
-							core/gds_image.c 
-							core/gds_text.c 
-							core/gds.c 
-							fonts/font_droid_sans_fallback_11x13.c  
-							fonts/font_droid_sans_fallback_15x17.c  
-							fonts/font_droid_sans_fallback_24x28.c  
-							fonts/font_droid_sans_mono_13x24.c  
-							fonts/font_droid_sans_mono_16x31.c  
-							fonts/font_droid_sans_mono_7x13.c  
-							fonts/font_liberation_mono_13x21.c  
-							fonts/font_liberation_mono_17x30.c  
-							fonts/font_liberation_mono_9x15.c  
-							fonts/font_line_1.c  
-							fonts/font_line_2.c  
-							fonts/font_tarable7seg_16x32.c  
-							fonts/font_tarable7seg_32x64.c 
+idf_component_register(SRC_DIRS . core core/ifaces  fonts
 						REQUIRES services
 						INCLUDE_DIRS . fonts core                   
 )
@@ -31,3 +8,10 @@ set_source_files_properties(display.c
    PROPERTIES COMPILE_FLAGS
    -Wno-format-overflow
 )
+
+#target_link_libraries(${COMPONENT_LIB} PUBLIC
+#  -Wl,--whole-archive
+#  $<TARGET_PROPERTY,INTERFACE_LINK_LIBRARIES>
+#  -Wl,--no-whole-archive
+#)
+
--- a/components/display/SH1106.c
+++ b/components/display/SH1106.c
@@ -21,6 +21,10 @@

 static char TAG[] = "SH1106";

+struct PrivateSpace {
+	uint8_t *Shadowbuffer;
+};
+
 // Functions are not declared to minimize # of lines

 static void SetColumnAddress( struct GDS_Device* Device, uint8_t Start, uint8_t End ) {
@@ -36,9 +40,10 @@ static void SetPageAddress( struct GDS_Device* Device, uint8_t Start, uint8_t En

 static void Update( struct GDS_Device* Device ) {
 #ifdef SHADOW_BUFFER
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 	// not sure the compiler does not have to redo all calculation in for loops, so local it is
 	int width = Device->Width, rows = Device->Height / 8;
-	uint8_t *optr = Device->Shadowbuffer, *iptr = Device->Framebuffer;
+	uint8_t *optr = Private->Shadowbuffer, *iptr = Device->Framebuffer;
 	
 	// by row, find first and last columns that have been updated
 	for (int r = 0; r < rows; r++) {
@@ -55,7 +60,7 @@ static void Update( struct GDS_Device* Device ) {
 		if (first--) {
 			SetColumnAddress( Device, first, last );
 			SetPageAddress( Device, r, r);
-			Device->WriteData( Device, Device->Shadowbuffer + r*width + first, last - first + 1);
+			Device->WriteData( Device, Private->Shadowbuffer + r*width + first, last - first + 1);
 		}
 	}	
 #else	
@@ -79,26 +84,15 @@ static void SetContrast( struct GDS_Device* Device, uint8_t Contrast ) {
 }

 static bool Init( struct GDS_Device* Device ) {
-	Device->FramebufferSize = ( Device->Width * Device->Height ) / 8;	
-	
-// benchmarks showed little gain to have SPI memory already in IRAL vs letting driver copy		
 #ifdef SHADOW_BUFFER	
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
-    NullCheck( Device->Framebuffer, return false );
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 #ifdef USE_IRAM
-	if (Device->IF == IF_SPI) Device->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
+	if (Device->IF == GDS_IF_SPI) Private->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
 	else 
 #endif
-	Device->Shadowbuffer = malloc( Device->FramebufferSize );	
-	NullCheck( Device->Shadowbuffer, return false );
-	memset(Device->Shadowbuffer, 0xFF, Device->FramebufferSize);
-#else	// not SHADOW_BUFFER
-#ifdef USE_IRAM
-	// benchmarks showed little gain to have SPI memory already in IRAL vs letting driver copy
-	if (Device->IF == IF_SPI) Device->Framebuffer = heap_caps_calloc( 1, Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
-	else 
-#endif
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
+	Private->Shadowbuffer = malloc( Device->FramebufferSize );	
+	NullCheck( Private->Shadowbuffer, return false );
+	memset(Private->Shadowbuffer, 0xFF, Device->FramebufferSize);
 #endif	
 		
 	// need to be off and disable display RAM
@@ -143,8 +137,6 @@ static const struct GDS_Device SH1106 = {
 	.DisplayOn = DisplayOn, .DisplayOff = DisplayOff, .SetContrast = SetContrast,
 	.SetVFlip = SetVFlip, .SetHFlip = SetHFlip,
 	.Update = Update, .Init = Init,
-	//.DrawPixelFast = GDS_DrawPixelFast,
-	//.ClearWindow = ClearWindow,
 };	

 struct GDS_Device* SH1106_Detect(char *Driver, struct GDS_Device* Device) {
@@ -153,6 +145,9 @@ struct GDS_Device* SH1106_Detect(char *Driver, struct GDS_Device* Device) {
 	if (!Device) Device = calloc(1, sizeof(struct GDS_Device));
 	*Device = SH1106;
 	Device->Depth = 1;
+#if !defined SHADOW_BUFFER && defined USE_IRAM	
+	Device->Alloc = GDS_ALLOC_IRAM_SPI;
+#endif	
 	ESP_LOGI(TAG, "SH1106 driver");
 	
 	return Device;
--- a/components/display/SSD1306.c
+++ b/components/display/SSD1306.c
@@ -21,7 +21,11 @@

 static char TAG[] = "SSD1306";

-// Functions are not deckared to minimize # of lines
+struct PrivateSpace {
+	uint8_t *Shadowbuffer;
+};
+
+// Functions are not declared to minimize # of lines

 static void SetColumnAddress( struct GDS_Device* Device, uint8_t Start, uint8_t End ) {
 	Device->WriteCommand( Device, 0x21 );
@@ -36,12 +40,14 @@ static void SetPageAddress( struct GDS_Device* Device, uint8_t Start, uint8_t En

 static void Update( struct GDS_Device* Device ) {
 #ifdef SHADOW_BUFFER
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 	// not sure the compiler does not have to redo all calculation in for loops, so local it is
-	int width = Device->Width, rows = Device->Height / 8;
-	uint8_t *optr = Device->Shadowbuffer, *iptr = Device->Framebuffer;
+	int width = Device->Width, pages = Device->Height / 8;
+	uint8_t *optr = Private->Shadowbuffer, *iptr = Device->Framebuffer;
+	int CurrentPage = -1, FirstCol = -1, LastCol = -1;
 	
 	// by row, find first and last columns that have been updated
-	for (int r = 0; r < rows; r++) {
+	for (int p = 0; p < pages; p++) {
 		uint8_t first = 0, last;	
 		for (int c = 0; c < width; c++) {
 			if (*iptr != *optr) {
@@ -53,13 +59,26 @@ static void Update( struct GDS_Device* Device ) {
 		
 		// now update the display by "byte rows"
 		if (first--) {
-			SetColumnAddress( Device, first, last );
-			SetPageAddress( Device, r, r);
-			Device->WriteData( Device, Device->Shadowbuffer + r*width + first, last - first + 1);
+			// only set column when useful, saves a fair bit of CPU
+			if (first > FirstCol && first <= FirstCol + 4 && last < LastCol && last >= LastCol - 4) {
+				first = FirstCol;
+				last = LastCol;
+			} else {	
+				SetColumnAddress( Device, first, last );
+				FirstCol = first;
+				LastCol = last;
+			}
+			
+			// Set row only when needed, otherwise let auto-increment work
+			if (p != CurrentPage) SetPageAddress( Device, p, Device->Height / 8 - 1 );
+			CurrentPage = p + 1;
+			
+			// actual write
+			Device->WriteData( Device, Private->Shadowbuffer + p*width + first, last - first + 1 );
 		}
 	}	
 #else	
-	// automatic counter and end Page/Column
+	// automatic counter and end Page/Column (we assume Height % 8 == 0)
 	SetColumnAddress( Device, 0, Device->Width - 1);
 	SetPageAddress( Device, 0, Device->Height / 8 - 1);
 	Device->WriteData( Device, Device->Framebuffer, Device->FramebufferSize );
@@ -77,26 +96,15 @@ static void SetContrast( struct GDS_Device* Device, uint8_t Contrast ) {
 }

 static bool Init( struct GDS_Device* Device ) {
-	Device->FramebufferSize = ( Device->Width * Device->Height ) / 8;	
-	
-// benchmarks showed little gain to have SPI memory already in IRAL vs letting driver copy		
 #ifdef SHADOW_BUFFER	
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
-    NullCheck( Device->Framebuffer, return false );
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 #ifdef USE_IRAM
-	if (Device->IF == IF_SPI) Device->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
+	if (Device->IF == GDS_IF_SPI) Private->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
 	else 
 #endif
-	Device->Shadowbuffer = malloc( Device->FramebufferSize );	
-	NullCheck( Device->Shadowbuffer, return false );
-	memset(Device->Shadowbuffer, 0xFF, Device->FramebufferSize);
-#else	// not SHADOW_BUFFER
-#ifdef USE_IRAM
-	// benchmarks showed little gain to have SPI memory already in IRAL vs letting driver copy
-	if (Device->IF == IF_SPI) Device->Framebuffer = heap_caps_calloc( 1, Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
-	else 
-#endif
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
+	Private->Shadowbuffer = malloc( Device->FramebufferSize );	
+	NullCheck( Private->Shadowbuffer, return false );
+	memset(Private->Shadowbuffer, 0xFF, Device->FramebufferSize);
 #endif	
 		
 	// need to be off and disable display RAM
@@ -107,6 +115,10 @@ static bool Init( struct GDS_Device* Device ) {
 	Device->WriteCommand( Device, 0x8D );
 	Device->WriteCommand( Device, 0x14 ); 
 	
+	// set Clocks
+    Device->WriteCommand( Device, 0xD5 );
+    Device->WriteCommand( Device, ( 0x08 << 4 ) | 0x00 );
+			
 	// COM pins HW config (alternative:EN if 64, DIS if 32, remap:DIS) - some display might need something different
 	Device->WriteCommand( Device, 0xDA );
 	Device->WriteCommand( Device, ((Device->Height == 64 ? 1 : 0) << 4) | (0 < 5) );
@@ -114,6 +126,12 @@ static bool Init( struct GDS_Device* Device ) {
 	// MUX Ratio
    Device->WriteCommand( Device, 0xA8 );
    Device->WriteCommand( Device, Device->Height - 1);
+	// Page & GDDRAM Start Column High/Low
+	/*
+    Device->WriteCommand( Device, 0x00 );
+	Device->WriteCommand( Device, 0x10 );
+	Device->WriteCommand( Device, 0xB0 );
+	*/
 	// Display Offset
    Device->WriteCommand( Device, 0xD3 );
    Device->WriteCommand( Device, 0 );
@@ -125,9 +143,6 @@ static bool Init( struct GDS_Device* Device ) {
 	Device->SetHFlip( Device, false );
 	// no Display Inversion
    Device->WriteCommand( Device, 0xA6 );
-	// set Clocks
-    Device->WriteCommand( Device, 0xD5 );
-    Device->WriteCommand( Device, ( 0x08 << 4 ) | 0x00 );
 	// set Adressing Mode Horizontal
 	Device->WriteCommand( Device, 0x20 );
 	Device->WriteCommand( Device, 0 );
@@ -144,8 +159,6 @@ static const struct GDS_Device SSD1306 = {
 	.DisplayOn = DisplayOn, .DisplayOff = DisplayOff, .SetContrast = SetContrast,
 	.SetVFlip = SetVFlip, .SetHFlip = SetHFlip,
 	.Update = Update, .Init = Init,
-	//.DrawPixelFast = GDS_DrawPixelFast,
-	//.ClearWindow = ClearWindow,
 };	

 struct GDS_Device* SSD1306_Detect(char *Driver, struct GDS_Device* Device) {
@@ -154,6 +167,9 @@ struct GDS_Device* SSD1306_Detect(char *Driver, struct GDS_Device* Device) {
 	if (!Device) Device = calloc(1, sizeof(struct GDS_Device));
 	*Device = SSD1306;	
 	Device->Depth = 1;
+#if !defined SHADOW_BUFFER && defined USE_IRAM	
+	Device->Alloc = GDS_ALLOC_IRAM_SPI;
+#endif	
 	ESP_LOGI(TAG, "SSD1306 driver");
 	
 	return Device;
--- a/components/display/SSD132x.c
+++ b/components/display/SSD132x.c
@@ -26,8 +26,8 @@ static char TAG[] = "SSD132x";

 enum { SSD1326, SSD1327 };

-struct SSD132x_Private {
-	uint8_t *iRAM;
+struct PrivateSpace {
+	uint8_t *iRAM, *Shadowbuffer;
 	uint8_t ReMap, PageSize;
 	uint8_t Model;
 };
@@ -67,13 +67,13 @@ static void SetRowAddress( struct GDS_Device* Device, uint8_t Start, uint8_t End
 }

 static void Update4( struct GDS_Device* Device ) {
-	struct SSD132x_Private *Private = (struct SSD132x_Private*) Device->Private;
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 		
 	// always update by full lines
 	SetColumnAddress( Device, 0, Device->Width / 2 - 1);
 	
 #ifdef SHADOW_BUFFER
-	uint16_t *optr = (uint16_t*) Device->Shadowbuffer, *iptr = (uint16_t*) Device->Framebuffer;
+	uint16_t *optr = (uint16_t*) Private->Shadowbuffer, *iptr = (uint16_t*) Device->Framebuffer;
 	bool dirty = false;
 	
 	for (int r = 0, page = 0; r < Device->Height; r++) {
@@ -92,10 +92,10 @@ static void Update4( struct GDS_Device* Device ) {
 				SetRowAddress( Device, r - page + 1, r );
 				// own use of IRAM has not proven to be much better than letting SPI do its copy
 				if (Private->iRAM) {
-					memcpy(Private->iRAM, Device->Shadowbuffer + (r - page + 1) * Device->Width / 2, page * Device->Width / 2 );
+					memcpy(Private->iRAM, Private->Shadowbuffer + (r - page + 1) * Device->Width / 2, page * Device->Width / 2 );
 					Device->WriteData( Device, Private->iRAM, Device->Width * page / 2 );
 				} else	{
-					Device->WriteData( Device, Device->Shadowbuffer + (r - page + 1) * Device->Width / 2, page * Device->Width / 2 );					
+					Device->WriteData( Device, Private->Shadowbuffer + (r - page + 1) * Device->Width / 2, page * Device->Width / 2 );					
 				}	
 				dirty = false;
 			}	
@@ -122,9 +122,11 @@ static void Update4( struct GDS_Device* Device ) {
 */ 
 static void Update1( struct GDS_Device* Device ) {
 #ifdef SHADOW_BUFFER
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 	// not sure the compiler does not have to redo all calculation in for loops, so local it is
 	int width = Device->Width / 8, rows = Device->Height;
-	uint8_t *optr = Device->Shadowbuffer, *iptr = Device->Framebuffer;
+	uint8_t *optr = Private->Shadowbuffer, *iptr = Device->Framebuffer;
+	int CurrentRow = -1, FirstCol = -1, LastCol = -1;
 	
 	// by row, find first and last columns that have been updated
 	for (int r = 0; r < rows; r++) {
@@ -139,9 +141,22 @@ static void Update1( struct GDS_Device* Device ) {
 		
 		// now update the display by "byte rows"
 		if (first--) {
-			SetColumnAddress( Device, first, last );
-			SetRowAddress( Device, r, r);
-			Device->WriteData( Device, Device->Shadowbuffer + r*width + first, last - first + 1);
+			// only set column when useful, saves a fair bit of CPU
+			if (first > FirstCol && first <= FirstCol + 4 && last < LastCol && last >= LastCol - 4) {
+				first = FirstCol;
+				last = LastCol;
+			} else {	
+				SetColumnAddress( Device, first, last );
+				FirstCol = first;
+				LastCol = last;
+			}
+			
+			// Set row only when needed, otherwise let auto-increment work
+			if (r != CurrentRow) SetRowAddress( Device, r, Device->Height - 1 );
+			CurrentRow = r + 1;
+			
+			// actual write
+			Device->WriteData( Device, Private->Shadowbuffer + r*width + first, last - first + 1 );
 		}
 	}	
 #else	
@@ -161,13 +176,13 @@ static void IRAM_ATTR DrawPixel1Fast( struct GDS_Device* Device, int X, int Y, i
        *FBOffset ^= BIT( 7 - XBit );
    } else {
 		// we might be able to save the 7-Xbit using BitRemap (A0 bit 2)
-        *FBOffset = ( Color == GDS_COLOR_WHITE ) ? *FBOffset | BIT( 7 - XBit ) : *FBOffset & ~BIT( 7 - XBit );
+        *FBOffset = ( Color == GDS_COLOR_BLACK ) ?  *FBOffset & ~BIT( XBit ) : *FBOffset | BIT( XBit );
    }
 }

 static void ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2, int Color ) {
 	uint8_t _Color = Color == GDS_COLOR_BLACK ? 0: 0xff;
-	uint8_t Width = Device->Width >> 3;
+	int Width = Device->Width >> 3;
 	uint8_t *optr = Device->Framebuffer;
 	
 	for (int r = y1; r <= y2; r++) {
@@ -180,24 +195,35 @@ static void ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int
 		c += chunk * 8;
 		while (c <= x2) DrawPixel1Fast( Device, c++, r, Color );
 	}
-	
-	Device->Dirty = true;
 }

 static void DrawBitmapCBR(struct GDS_Device* Device, uint8_t *Data, int Width, int Height, int Color ) {
-	uint8_t *optr = Device->Framebuffer;
-	
 	if (!Height) Height = Device->Height;
 	if (!Width) Width = Device->Width;
+	int DWidth = Device->Width >> 3;
 	
-	// just do bitreverse and if BitRemap works, there will be even nothing to do	
-	for (int i = Height * Width >> 3; --i >= 0;) *optr++ = BitReverseTable256[*Data++];
+	// Two consecutive bits of source data are split over two different bytes of framebuffer
+	for (int c = 0; c < Width; c++) {
+		uint8_t shift = c & 0x07, bit = ~(1 << shift);
+		uint8_t *optr = Device->Framebuffer + (c >> 3);
 		
-	// Dirty is set for us
+		// we need to linearize code to let compiler better optimize
+		for (int r = Height >> 3; --r >= 0;) {
+			uint8_t Byte = BitReverseTable256[*Data++];
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth; Byte >>= 1;
+			*optr = (*optr & bit) | ((Byte & 0x01) << shift); optr += DWidth;
+		}	
+	}
 }

 static void SetHFlip( struct GDS_Device* Device, bool On ) { 
-	struct SSD132x_Private *Private = (struct SSD132x_Private*) Device->Private;
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 	if (Private->Model == SSD1326) Private->ReMap = On ? (Private->ReMap | ((1 << 0) | (1 << 2))) : (Private->ReMap & ~((1 << 0) | (1 << 2)));
 	else Private->ReMap = On ? (Private->ReMap | ((1 << 0) | (1 << 1))) : (Private->ReMap & ~((1 << 0) | (1 << 1)));
 	Device->WriteCommand( Device, 0xA0 );
@@ -205,7 +231,7 @@ static void SetHFlip( struct GDS_Device* Device, bool On ) {
 }	

 static void SetVFlip( struct GDS_Device *Device, bool On ) { 
-	struct SSD132x_Private *Private = (struct SSD132x_Private*) Device->Private;
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 	if (Private->Model == SSD1326) Private->ReMap = On ? (Private->ReMap | (1 << 1)) : (Private->ReMap & ~(1 << 1));
 	else Private->ReMap = On ? (Private->ReMap | (1 << 4)) : (Private->ReMap & ~(1 << 4));
 	Device->WriteCommand( Device, 0xA0 );
@@ -221,48 +247,30 @@ static void SetContrast( struct GDS_Device* Device, uint8_t Contrast ) {
 }

 static bool Init( struct GDS_Device* Device ) {
-	struct SSD132x_Private *Private = (struct SSD132x_Private*) Device->Private;
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
 	
 	// find a page size that is not too small is an integer of height
 	Private->PageSize = min(8, PAGE_BLOCK / (Device->Width / 2));
 	Private->PageSize = Device->Height / (Device->Height / Private->PageSize) ;	
 	
-#ifdef USE_IRAM	
-	// let SPI driver allocate memory, it has not proven to be more efficient
-	if (Device->IF == IF_SPI) Private->iRAM = heap_caps_malloc( Private->PageSize * Device->Width / 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
-#endif	
-	Device->FramebufferSize = ( Device->Width * Device->Height ) / 2;	
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
-    NullCheck( Device->Framebuffer, return false );
-	
-// benchmarks showed little gain to have SPI memory already in IRAM vs letting driver copy		
 #ifdef SHADOW_BUFFER	
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
-    NullCheck( Device->Framebuffer, return false );
 #ifdef USE_IRAM
-	if (Device->IF == IF_SPI) {
+	if (Device->IF == GDS_IF_SPI) {
 		if (Device->Depth == 1) {
-			Device->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
+			Private->Shadowbuffer = heap_caps_malloc( Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
 		} else {
-			Device->Shadowbuffer = malloc( Device->FramebufferSize );	
+			Private->Shadowbuffer = malloc( Device->FramebufferSize );	
 			Private->iRAM = heap_caps_malloc( Private->PageSize * Device->Width / 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
 		}	
 	} else
 #endif
-	Device->Shadowbuffer = malloc( Device->FramebufferSize );	
-	memset(Device->Shadowbuffer, 0xFF, Device->FramebufferSize);
-#else	// not SHADOW_BUFFER
+	Private->Shadowbuffer = malloc( Device->FramebufferSize );	
+	memset(Private->Shadowbuffer, 0xFF, Device->FramebufferSize);
+#else
 #ifdef USE_IRAM	
-	if (Device->IF == IF_SPI) {
-		if (Device->Depth == 1) {
-			Device->Framebuffer = heap_caps_calloc( 1, Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
-		} else  {
-			Device->Framebuffer = calloc( 1, Device->FramebufferSize );	
-			Private->iRAM = heap_caps_malloc( Private->PageSize * Device->Width / 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
-		}
-	} else 
+	if (Device->Depth == 4 && Device->IF == GDS_IF_SPI) Private->iRAM = heap_caps_malloc( Private->PageSize * Device->Width / 2, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
 #endif	
-	Device->Framebuffer = calloc( 1, Device->FramebufferSize );
+
 #endif

 	ESP_LOGI(TAG, "SSD1326/7 with bit depth %u, page %u, iRAM %p", Device->Depth, Private->PageSize, Private->iRAM);
@@ -315,23 +323,28 @@ static const struct GDS_Device SSD132x = {

 struct GDS_Device* SSD132x_Detect(char *Driver, struct GDS_Device* Device) {
 	uint8_t Model;
+	int Depth;
 	
-	if (!strcasestr(Driver, "SSD1326")) Model = SSD1326;
-	else if (!strcasestr(Driver, "SSD1327")) Model = SSD1327;
+	if (strcasestr(Driver, "SSD1326")) Model = SSD1326;
+	else if (strcasestr(Driver, "SSD1327")) Model = SSD1327;
 	else return NULL;
 	
 	if (!Device) Device = calloc(1, sizeof(struct GDS_Device));
 	
 	*Device = SSD132x;	
-	((struct SSD132x_Private*) Device->Private)->Model = Model;
+	((struct PrivateSpace*) Device->Private)->Model = Model;
 		
-	sscanf(Driver, "%*[^:]:%c", &Device->Depth);
+	sscanf(Driver, "%*[^:]:%u", &Depth);
+	Device->Depth = Depth;
 	
 	if (Model == SSD1326 && Device->Depth == 1) {
 		Device->Update = Update1;
 		Device->DrawPixelFast = DrawPixel1Fast;
 		Device->DrawBitmapCBR = DrawBitmapCBR;
 		Device->ClearWindow = ClearWindow;
+#if !defined SHADOW_BUFFER && defined USE_IRAM	
+		Device->Alloc = GDS_ALLOC_IRAM_SPI;
+#endif	
 	} else {
 		Device->Depth = 4;
 	}	
--- a/components/display/SSD1675.c
+++ b/components/display/SSD1675.c
@@ -0,0 +1,252 @@
+/**
+ * Copyright (c) 2017-2018 Tara Keeling
+ *				 2020 Philippe G.
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "driver/gpio.h"
+#include <esp_log.h>
+
+#include "gds.h"
+#include "gds_private.h"
+
+static char TAG[] = "SSD1675";
+
+const unsigned char EPD_lut_full_update[] = {
+    0x80,0x60,0x40,0x00,0x00,0x00,0x00,             //LUT0: BB:     VS 0 ~7
+    0x10,0x60,0x20,0x00,0x00,0x00,0x00,             //LUT1: BW:     VS 0 ~7
+    0x80,0x60,0x40,0x00,0x00,0x00,0x00,             //LUT2: WB:     VS 0 ~7
+    0x10,0x60,0x20,0x00,0x00,0x00,0x00,             //LUT3: WW:     VS 0 ~7
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,             //LUT4: VCOM:   VS 0 ~7
+    0x03,0x03,0x00,0x00,0x02,                       // TP0 A~D RP0
+    0x09,0x09,0x00,0x00,0x02,                       // TP1 A~D RP1
+    0x03,0x03,0x00,0x00,0x02,                       // TP2 A~D RP2
+    0x00,0x00,0x00,0x00,0x00,                       // TP3 A~D RP3
+    0x00,0x00,0x00,0x00,0x00,                       // TP4 A~D RP4
+    0x00,0x00,0x00,0x00,0x00,                       // TP5 A~D RP5
+    0x00,0x00,0x00,0x00,0x00,                       // TP6 A~D RP6
+    0x15,0x41,0xA8,0x32,0x30,0x0A,
+};
+
+const unsigned char EPD_lut_partial_update[]= { //20 bytes
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,             //LUT0: BB:     VS 0 ~7
+    0x80,0x00,0x00,0x00,0x00,0x00,0x00,             //LUT1: BW:     VS 0 ~7
+    0x40,0x00,0x00,0x00,0x00,0x00,0x00,             //LUT2: WB:     VS 0 ~7
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,             //LUT3: WW:     VS 0 ~7
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,             //LUT4: VCOM:   VS 0 ~7
+    0x0A,0x00,0x00,0x00,0x00,                       // TP0 A~D RP0
+    0x00,0x00,0x00,0x00,0x00,                       // TP1 A~D RP1
+    0x00,0x00,0x00,0x00,0x00,                       // TP2 A~D RP2
+    0x00,0x00,0x00,0x00,0x00,                       // TP3 A~D RP3
+    0x00,0x00,0x00,0x00,0x00,                       // TP4 A~D RP4
+    0x00,0x00,0x00,0x00,0x00,                       // TP5 A~D RP5
+    0x00,0x00,0x00,0x00,0x00,                       // TP6 A~D RP6
+    0x15,0x41,0xA8,0x32,0x30,0x0A,
+};
+
+struct PrivateSpace {
+	int	ReadyPin;
+	uint16_t Height;
+};
+
+// Functions are not declared to minimize # of lines
+
+void WaitReady( struct GDS_Device* Device) {
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
+	if (Private->ReadyPin >= 0) {
+		int count = 4*1000;
+		while (gpio_get_level( Private->ReadyPin ) && count) {
+			vTaskDelay( pdMS_TO_TICKS(100) );
+			count -= 100;
+		}	
+	} else {
+		vTaskDelay( pdMS_TO_TICKS(2000) );
+	}	
+}	
+
+static void WriteByte( struct GDS_Device* Device, uint8_t Data ) {
+	Device->WriteData( Device, &Data, 1 );
+}
+
+static void SetColumnAddress( struct GDS_Device* Device, uint8_t Start, uint8_t End ) {
+	// start might be greater than end if we decrement
+	Device->WriteCommand( Device, 0x44 );
+	Device->WriteData( Device, &Start, 1 );
+	Device->WriteData( Device, &End, 1 );
+	
+	// we obviously want to start ... from the start
+	Device->WriteCommand( Device, 0x4e );	
+	WriteByte( Device, Start );
+}
+static void SetRowAddress( struct GDS_Device* Device, uint16_t Start, uint16_t End ) {
+	// start might be greater than end if we decrement
+	Device->WriteCommand( Device, 0x45 );	
+	WriteByte( Device, Start );
+	WriteByte( Device, Start >> 8 );
+	WriteByte( Device, End );
+	WriteByte( Device, End >> 8 );
+	
+	// we obviously want to start ... from the start
+	Device->WriteCommand( Device, 0x4f );	
+	WriteByte( Device, Start );
+	WriteByte( Device, Start >> 8 );
+}
+
+static void Update( struct GDS_Device* Device ) {
+	uint8_t *iptr = Device->Framebuffer;
+	
+	Device->WriteCommand( Device, 0x24 );
+	
+	// this is awfully slow, but e-ink are slow anyway ...
+	for (int i = Device->FramebufferSize; --i >= 0;) {
+		WriteByte( Device, ~*iptr++ );
+	}	
+	
+	Device->WriteCommand( Device, 0x22 ); 
+    WriteByte( Device, 0xC7);
+    Device->WriteCommand( Device, 0X20 );
+
+	WaitReady( Device );
+}
+
+// remember that for these ELD drivers W and H are "inverted"
+static void IRAM_ATTR DrawPixelFast( struct GDS_Device* Device, int X, int Y, int Color ) {
+    uint32_t YBit = ( Y & 0x07 );
+    Y>>= 3;
+
+    uint8_t* FBOffset = Device->Framebuffer + ( ( Y * Device->Width ) + X );
+    *FBOffset = ( Color == GDS_COLOR_BLACK ) ? *FBOffset & ~BIT( 7-YBit ) : *FBOffset | BIT( 7-YBit );
+}	
+
+static void ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2, int Color ) {
+	for (int r = y1; r <= y2; r++) {
+		for (int c = x1; c <= x2; c++) {
+			DrawPixelFast( Device, c, r, Color );
+		}	
+	}
+}
+
+static void DrawBitmapCBR(struct GDS_Device* Device, uint8_t *Data, int Width, int Height, int Color ) {
+	if (!Height) Height = Device->Height;
+	if (!Width) Width = Device->Width;
+	
+	// just do row/column swap
+	for (int r = 0; r < Height; r++) {
+		uint8_t *optr = Device->Framebuffer + r*Device->Width, *iptr = Data + r;
+		for (int c = Width; --c >= 0;) {
+			*optr++ = *iptr;
+			iptr += Height;
+		}	
+	}
+}
+
+static bool Init( struct GDS_Device* Device ) {
+	struct PrivateSpace *Private = (struct PrivateSpace*) Device->Private;
+	
+	// need to re-adjust framebuffer because these are non % 8 
+	Private->Height = Device->Height;
+	if (Device->Height & 0x07) Device->Height = ((Device->Height >> 3) + 1) << 3;
+	
+	Device->FramebufferSize = Device->Width * Device->Height / 8;
+	Device->Framebuffer = calloc(1, Device->FramebufferSize);
+	NullCheck( Device->Framebuffer, return false );
+	
+	if (Private->ReadyPin >= 0) {
+		gpio_pad_select_gpio( Private->ReadyPin );
+		gpio_set_pull_mode( Private->ReadyPin, GPIO_PULLUP_ONLY);
+		gpio_set_direction( Private->ReadyPin, GPIO_MODE_INPUT );
+	}
+	
+	// soft reset	
+	vTaskDelay(pdMS_TO_TICKS( 2000 ));
+    Device->WriteCommand( Device, 0x12 ); 	
+	WaitReady( Device );
+	
+	Device->WriteCommand( Device, 0x74 ); 			
+    WriteByte( Device, 0x54 );
+	Device->WriteCommand( Device, 0x7e ); 			
+    WriteByte( Device, 0x3B );
+	
+	Device->WriteCommand( Device, 0x3c );	
+    WriteByte( Device, 0x03 );
+	
+	Device->WriteCommand( Device, 0x2c );	
+    WriteByte( Device, 0x55 );
+
+	Device->WriteCommand( Device, 0x03 );	
+	WriteByte( Device, EPD_lut_full_update[70] );
+	
+	Device->WriteCommand( Device, 0x04 );	
+	WriteByte( Device, EPD_lut_full_update[71] );
+	WriteByte( Device, EPD_lut_full_update[72] );
+	WriteByte( Device, EPD_lut_full_update[73] );
+	
+	Device->WriteCommand( Device, 0x3a );	
+	WriteByte( Device, EPD_lut_full_update[74] );
+	Device->WriteCommand( Device, 0x3b );	
+	WriteByte( Device, EPD_lut_full_update[75] );
+	
+	Device->WriteCommand( Device, 0X32 );	
+	for (int i = 0; i < 70; i++) {
+		WriteByte( Device, EPD_lut_full_update[i] );
+	}	
+
+	// now deal with funny X/Y layout (W and H are "inverted")
+	Device->WriteCommand( Device, 0x01 );
+    WriteByte( Device, Device->Width - 1 );
+    WriteByte( Device, (Device->Width - 1) >> 8 );
+    WriteByte( Device, (0 << 0) );		
+
+	/* 
+	 Start from 0, Ymax, incX, decY. Starting from X=Height would be difficult
+	 as we would hit the extra bits added because height % 8 != 0 and they are
+	 not written by the DrawPixel. By starting from X=0 we are aligned and 
+	 doing incY is like a clockwise 90° rotation (vs otherwise we would virtually 
+	 do a counter-clockwise rotation but again have the "border" issue.
+	*/ 
+	Device->WriteCommand( Device, 0x11 ); 			
+	WriteByte( Device, (1 << 2) | (0 << 1) | (1 << 0));
+		
+	// must be in order with increment/decrement i.e start might be > end if we decrement
+	SetColumnAddress( Device, 0x0, (Device->Height >> 3) - 1 );
+	SetRowAddress ( Device, Device->Width - 1, 0 );
+
+	WaitReady( Device );
+	
+	Update( Device );
+	
+	return true;
+}	
+
+static const struct GDS_Device SSD1675 = {
+	.DrawBitmapCBR = DrawBitmapCBR, .ClearWindow = ClearWindow,
+	.DrawPixelFast = DrawPixelFast,
+	.Update = Update, .Init = Init,
+};	
+
+struct GDS_Device* SSD1675_Detect(char *Driver, struct GDS_Device* Device) {
+	if (!strcasestr(Driver, "SSD1675")) return NULL;
+	
+	if (!Device) Device = calloc(1, sizeof(struct GDS_Device));
+	*Device = SSD1675;	
+	
+	Device->Depth = 1;
+	Device->Alloc = GDS_ALLOC_NONE;
+	
+	char *p;
+	struct PrivateSpace* Private = (struct PrivateSpace*) Device->Private;
+	Private->ReadyPin = -1;
+	if ((p = strcasestr(Driver, "ready")) != NULL) Private->ReadyPin = atoi(strchr(p, '=') + 1);
+	
+	ESP_LOGI(TAG, "SSD1675 driver with ready GPIO %d", Private->ReadyPin);
+	
+	return Device;
+}
--- a/components/display/core/gds.c
+++ b/components/display/core/gds.c
@@ -95,7 +95,7 @@ void GDS_ClearWindow( struct GDS_Device* Device, int x1, int y1, int x2, int y2,
 			memset( Device->Framebuffer, Color | (Color << 4), Device->FramebufferSize );
 		} else {
 			uint8_t _Color = Color | (Color << 4);
-			uint8_t Width = Device->Width;
+			int Width = Device->Width;
 			uint8_t *optr = Device->Framebuffer;
 			// try to do byte processing as much as possible
 			for (int r = y1; r <= y2; r++) {
@@ -132,10 +132,29 @@ bool GDS_Reset( struct GDS_Device* Device ) {
    return true;
 }

-void GDS_SetContrast( struct GDS_Device* Device, uint8_t Contrast ) { Device->SetContrast( Device, Contrast); }
-void GDS_SetHFlip( struct GDS_Device* Device, bool On ) { Device->SetHFlip( Device, On ); }
-void GDS_SetVFlip( struct GDS_Device* Device, bool On ) { Device->SetVFlip( Device, On ); }
+bool GDS_Init( struct GDS_Device* Device ) {
+	
+	Device->FramebufferSize = (Device->Width * Device->Height) / (8 / Device->Depth);
+	
+	// allocate FB unless explicitely asked not to
+	if (!(Device->Alloc & GDS_ALLOC_NONE)) {
+		if ((Device->Alloc & GDS_ALLOC_IRAM) || ((Device->Alloc & GDS_ALLOC_IRAM_SPI) && Device->IF == GDS_IF_SPI)) {
+			heap_caps_calloc( 1, Device->FramebufferSize, MALLOC_CAP_INTERNAL | MALLOC_CAP_DMA );
+		} else {
+			Device->Framebuffer = calloc( 1, Device->FramebufferSize );
+		}	
+		NullCheck( Device->Framebuffer, return false );
+	}	
+	
+	bool Res = Device->Init( Device );
+	if (!Res) free(Device->Framebuffer);
+	return Res;
+}
+
+void GDS_SetContrast( struct GDS_Device* Device, uint8_t Contrast ) { if (Device->SetContrast) Device->SetContrast( Device, Contrast); }
+void GDS_SetHFlip( struct GDS_Device* Device, bool On ) { if (Device->SetHFlip) Device->SetHFlip( Device, On ); }
+void GDS_SetVFlip( struct GDS_Device* Device, bool On ) { if (Device->SetVFlip) Device->SetVFlip( Device, On ); }
 int	GDS_GetWidth( struct GDS_Device* Device ) { return Device->Width; }
 int	GDS_GetHeight( struct GDS_Device* Device ) { return Device->Height; }
-void GDS_DisplayOn( struct GDS_Device* Device ) { Device->DisplayOn( Device ); }
-void GDS_DisplayOff( struct GDS_Device* Device ) { Device->DisplayOff( Device ); }
+void GDS_DisplayOn( struct GDS_Device* Device ) { if (Device->DisplayOn) Device->DisplayOn( Device ); }
+void GDS_DisplayOff( struct GDS_Device* Device ) { if (Device->DisplayOff) Device->DisplayOff( Device ); }
--- a/components/display/core/gds.h
+++ b/components/display/core/gds.h
@@ -15,11 +15,12 @@

 enum { 	GDS_COLOR_L0 = 0, GDS_COLOR_L1, GDS_COLOR_L2, GDS_COLOR_L3, GDS_COLOR_L4, GDS_COLOR_L5, GDS_COLOR_L6, GDS_COLOR_L7, 
 		GDS_COLOR_L8, GDS_COLOR_L9, GDS_COLOR_L10, GDS_COLOR_L11, GDS_COLOR_L12, GDS_COLOR_L13, GDS_COLOR_L14, GDS_COLOR_L15,
+		GDS_COLOR_MAX
 };
 		
-#define GDS_COLOR_BLACK GDS_COLOR_L0
-#define GDS_COLOR_WHITE GDS_COLOR_L15
-#define GDS_COLOR_XOR 2
+#define GDS_COLOR_BLACK (0)
+#define GDS_COLOR_WHITE (-1)
+#define GDS_COLOR_XOR 	(GDS_COLOR_MAX + 1)

 struct GDS_Device;
 struct GDS_FontDef;
--- a/components/display/core/gds_draw.c
+++ b/components/display/core/gds_draw.c
@@ -58,7 +58,7 @@ void GDS_DrawHLine( struct GDS_Device* Device, int x, int y, int Width, int Colo
 	if (XEnd >= Device->Width) XEnd = Device->Width - 1;
 	
 	if (y < 0) y = 0;
-	else if (y >= Device->Height) x = Device->Height - 1;
+	else if (y >= Device->Height) y = Device->Height - 1;

    for ( ; x < XEnd; x++ ) GDS_DrawPixelFast( Device, x, y, Color );
 }
@@ -195,11 +195,11 @@ void GDS_DrawBox( struct GDS_Device* Device, int x1, int y1, int x2, int y2, int
 void GDS_DrawBitmapCBR(struct GDS_Device* Device, uint8_t *Data, int Width, int Height, int Color ) {
 	if (!Height) Height = Device->Height;
 	if (!Width) Width = Device->Width;
-	Height >>= 3;
 		
 	if (Device->DrawBitmapCBR) {
 		Device->DrawBitmapCBR( Device, Data, Width, Height, Color );
 	} else if (Device->Depth == 1) {
+		Height >>= 3;
 		// need to do row/col swap and bit-reverse
 		for (int r = 0; r < Height; r++) {
 			uint8_t *optr = Device->Framebuffer + r*Device->Width, *iptr = Data + r;
@@ -211,6 +211,7 @@ void GDS_DrawBitmapCBR(struct GDS_Device* Device, uint8_t *Data, int Width, int
 	} else if (Device->Depth == 4)	{
 		uint8_t *optr = Device->Framebuffer;
 		int LineLen = Device->Width >> 1;
+		Height >>= 3;
 		for (int i = Width * Height, r = 0, c = 0; --i >= 0;) {
 			uint8_t Byte = BitReverseTable256[*Data++];
 			// we need to linearize code to let compiler better optimize
@@ -237,6 +238,7 @@ void GDS_DrawBitmapCBR(struct GDS_Device* Device, uint8_t *Data, int Width, int
 			if (++r == Height) { c++; r = 0; optr = Device->Framebuffer + (c >> 1); }		
 		}
 	} else {
+		Height >>= 3;
 		// don't know bitdepth, use brute-force solution
 		for (int i = Width * Height, r = 0, c = 0; --i >= 0;) {
 			uint8_t Byte = *Data++;
--- a/components/display/core/gds_image.c
+++ b/components/display/core/gds_image.c
@@ -21,6 +21,7 @@ typedef struct {
 		struct {						// DirectDraw
 			struct GDS_Device * Device;
 			int XOfs, YOfs;
+			int XMin, YMin;
 			int Depth;
 		};	
 	};	
@@ -38,9 +39,7 @@ static unsigned OutHandler(JDEC *Decoder, void *Bitmap, JRECT *Frame) {
    uint8_t *Pixels = (uint8_t*) Bitmap;
 	
    for (int y = Frame->top; y <= Frame->bottom; y++) {
-		if (y < Context->YOfs) continue;
        for (int x = Frame->left; x <= Frame->right; x++) {
-			if (x < Context->XOfs) continue;
            // Convert the 888 to RGB565
            uint16_t Value = (*Pixels++ & ~0x07) << 8;
            Value |= (*Pixels++ & ~0x03) << 3;
@@ -57,12 +56,14 @@ static unsigned OutHandlerDirect(JDEC *Decoder, void *Bitmap, JRECT *Frame) {
 	int Shift = 8 - Context->Depth;
 	
    for (int y = Frame->top; y <= Frame->bottom; y++) {
+		if (y < Context->YMin) continue;
        for (int x = Frame->left; x <= Frame->right; x++) {
+			if (x < Context->XMin) continue;
            // Convert the 888 to RGB565
            int Value = ((Pixels[0]*11 + Pixels[1]*59 + Pixels[2]*30) / 100) >> Shift;
 			Pixels += 3;
 			// used DrawPixel and not "fast" version as X,Y may be beyond screen
-			GDS_DrawPixel( Context->Device, Context->XOfs + x, Context->YOfs + y, Value);
+			GDS_DrawPixel( Context->Device, x + Context->XOfs, y + Context->YOfs, Value);
        }
    }
    return 1;
@@ -90,11 +91,16 @@ static uint16_t* DecodeJPEG(uint8_t *Source, int *Width, int *Height, float Scal
 	Decoder.scale = Scale;

    if (Res == JDR_OK && !SizeOnly) {
-		// find the scaling factor
 		Context.OutData = malloc(Decoder.width * Decoder.height * sizeof(uint16_t));
+		
+		// find the scaling factor
 		uint8_t N = 0, ScaleInt =  ceil(1.0 / Scale);
 		ScaleInt--; ScaleInt |= ScaleInt >> 1; ScaleInt |= ScaleInt >> 2; ScaleInt++;
 		while (ScaleInt >>= 1) N++;
+		if (N > 3) {
+			ESP_LOGW(TAG, "Image will not fit %dx%d", Decoder.width, Decoder.height);
+			N = 3;
+		}	
 		
 		// ready to decode		
 		if (Context.OutData) {
@@ -102,7 +108,7 @@ static uint16_t* DecodeJPEG(uint8_t *Source, int *Width, int *Height, float Scal
 			Context.Height = Decoder.height / (1 << N);
 			if (Width) *Width = Context.Width;
 			if (Height) *Height = Context.Height;
-			Res = jd_decomp(&Decoder, OutHandler, N > 3 ? 3 : N);
+			Res = jd_decomp(&Decoder, OutHandler, N);
 			if (Res != JDR_OK) {
 				ESP_LOGE(TAG, "Image decoder: jd_decode failed (%d)", Res);
 			}	
@@ -202,16 +208,23 @@ bool GDS_DrawJPEG( struct GDS_Device* Device, uint8_t *Source, int x, int y, int
 			uint8_t Ratio = XRatio < YRatio ? ceil(1/XRatio) : ceil(1/YRatio);
 			Ratio--; Ratio |= Ratio >> 1; Ratio |= Ratio >> 2; Ratio++;
 			while (Ratio >>= 1) N++;
+			if (N > 3) {
+				ESP_LOGW(TAG, "Image will not fit %dx%d", Decoder.width, Decoder.height);
+				N = 3;
+			}	
 			Context.Width /= 1 << N;
 			Context.Height /= 1 << N;
 		} 
 		
 		// then place it
-		if (Fit & GDS_IMAGE_CENTER_X) Context.XOfs = x + ((Device->Width - x) - Context.Width) / 2;
-		if (Fit & GDS_IMAGE_CENTER_Y) Context.YOfs = y + ((Device->Height - y) - Context.Height) / 2;
+		if (Fit & GDS_IMAGE_CENTER_X) Context.XOfs = (Device->Width + x - Context.Width) / 2;
+		if (Fit & GDS_IMAGE_CENTER_Y) Context.YOfs = (Device->Height + y - Context.Height) / 2;
+		
+		Context.XMin = x - Context.XOfs;
+		Context.YMin = y - Context.YOfs;
 					
 		// do decompress & draw
-		Res = jd_decomp(&Decoder, OutHandlerDirect, N > 3 ? 3 : N);
+		Res = jd_decomp(&Decoder, OutHandlerDirect, N);
 		if (Res == JDR_OK) {
 			Ret = true;
 		} else {	
--- a/components/display/core/gds_private.h
+++ b/components/display/core/gds_private.h
@@ -7,6 +7,10 @@
 #include "gds.h"
 #include "gds_err.h"

+#define GDS_ALLOC_NONE		0x80
+#define GDS_ALLOC_IRAM		0x01
+#define GDS_ALLOC_IRAM_SPI	0x02
+
 #define GDS_CLIPDEBUG_NONE 0
 #define GDS_CLIPDEBUG_WARNING 1
 #define GDS_CLIPDEBUG_ERROR 2
@@ -55,8 +59,8 @@ typedef bool ( *WriteDataProc ) ( struct GDS_Device* Device, const uint8_t* Data
 struct spi_device_t;
 typedef struct spi_device_t* spi_device_handle_t;

-#define IF_SPI	0
-#define IF_I2C	1
+#define GDS_IF_SPI	0
+#define GDS_IF_I2C	1

 struct GDS_Device {
 	uint8_t IF;
@@ -83,7 +87,8 @@ struct GDS_Device {
    uint16_t Height;
 	uint8_t Depth;
 	
-	uint8_t* Framebuffer, *Shadowbuffer;
+	uint8_t	Alloc;	
+	uint8_t* Framebuffer;
    uint16_t FramebufferSize;
 	bool Dirty;

@@ -95,12 +100,13 @@ struct GDS_Device {
 	// various driver-specific method
 	// must always provide 
 	bool (*Init)( struct GDS_Device* Device);
+	void (*Update)( struct GDS_Device* Device );
+	// may provide if supported
 	void (*SetContrast)( struct GDS_Device* Device, uint8_t Contrast );
 	void (*DisplayOn)( struct GDS_Device* Device );
 	void (*DisplayOff)( struct GDS_Device* Device );
 	void (*SetHFlip)( struct GDS_Device* Device, bool On );
 	void (*SetVFlip)( struct GDS_Device* Device, bool On );
-	void (*Update)( struct GDS_Device* Device );
 	// must provide for depth other than 1 (vertical) and 4 (may provide for optimization)
 	void (*DrawPixelFast)( struct GDS_Device* Device, int X, int Y, int Color );
 	void (*DrawBitmapCBR)(struct GDS_Device* Device, uint8_t *Data, int Width, int Height, int Color );
@@ -117,6 +123,7 @@ struct GDS_Device {
 };

 bool GDS_Reset( struct GDS_Device* Device );
+bool GDS_Init( struct GDS_Device* Device );

 static inline bool IsPixelVisible( struct GDS_Device* Device, int x, int y )  {
    bool Result = (
@@ -152,7 +159,7 @@ static inline void IRAM_ATTR GDS_DrawPixel1Fast( struct GDS_Device* Device, int
    if ( Color == GDS_COLOR_XOR ) {
        *FBOffset ^= BIT( YBit );
    } else {
-        *FBOffset = ( Color == GDS_COLOR_WHITE ) ? *FBOffset | BIT( YBit ) : *FBOffset & ~BIT( YBit );
+        *FBOffset = ( Color == GDS_COLOR_BLACK ) ? *FBOffset & ~BIT( YBit ) : *FBOffset | BIT( YBit );
    }
 }

@@ -160,7 +167,7 @@ static inline void IRAM_ATTR GDS_DrawPixel4Fast( struct GDS_Device* Device, int
 	uint8_t* FBOffset;

    FBOffset = Device->Framebuffer + ( (Y * Device->Width >> 1) + (X >> 1));
-	*FBOffset = X & 0x01 ? (*FBOffset & 0x0f) | (Color << 4) : ((*FBOffset & 0xf0) | Color);
+	*FBOffset = X & 0x01 ? (*FBOffset & 0x0f) | ((Color  & 0x0f) << 4) : ((*FBOffset & 0xf0) | (Color & 0x0f));
 }

 static inline void IRAM_ATTR GDS_DrawPixelFast( struct GDS_Device* Device, int X, int Y, int Color ) {
--- a/components/display/core/ifaces/default_if_i2c.c
+++ b/components/display/core/ifaces/default_if_i2c.c
@@ -73,7 +73,7 @@ bool GDS_I2CAttachDevice( struct GDS_Device* Device, int Width, int Height, int
    Device->WriteData = I2CDefaultWriteData;
    Device->Address = I2CAddress;
    Device->RSTPin = RSTPin;
-	Device->IF = IF_I2C;
+	Device->IF = GDS_IF_I2C;
 	Device->Width = Width;
 	Device->Height = Height;
 	
@@ -83,7 +83,7 @@ bool GDS_I2CAttachDevice( struct GDS_Device* Device, int Width, int Height, int
 		GDS_Reset( Device );
    }
 	
-    return Device->Init( Device );
+    return GDS_Init( Device );
 }

 static bool I2CDefaultWriteBytes( int Address, bool IsCommand, const uint8_t* Data, size_t DataLength ) {
--- a/components/display/core/ifaces/default_if_spi.c
+++ b/components/display/core/ifaces/default_if_spi.c
@@ -58,7 +58,7 @@ bool GDS_SPIAttachDevice( struct GDS_Device* Device, int Width, int Height, int
    Device->SPIHandle = SPIDevice;
    Device->RSTPin = RSTPin;
    Device->CSPin = CSPin;
-	Device->IF = IF_SPI;
+	Device->IF = GDS_IF_SPI;
 	Device->Width = Width;
 	Device->Height = Height;
 	
@@ -68,7 +68,7 @@ bool GDS_SPIAttachDevice( struct GDS_Device* Device, int Width, int Height, int
 		GDS_Reset( Device );
    }
 	
-	return Device->Init( Device );
+	return GDS_Init( Device );
 }

 static bool SPIDefaultWriteBytes( spi_device_handle_t SPIHandle, int WriteMode, const uint8_t* Data, size_t DataLength ) {
--- a/components/display/display.c
+++ b/components/display/display.c
@@ -59,8 +59,8 @@ static EXT_RAM_ATTR struct {
 static void displayer_task(void *args);

 struct GDS_Device *display;   
-extern GDS_DetectFunc SSD1306_Detect, SSD132x_Detect, SH1106_Detect;
-GDS_DetectFunc *drivers[] = { SH1106_Detect, SSD1306_Detect, SSD132x_Detect, NULL };
+extern GDS_DetectFunc SSD1306_Detect, SSD132x_Detect, SH1106_Detect, SSD1675_Detect;
+GDS_DetectFunc *drivers[] = { SH1106_Detect, SSD1306_Detect, SSD132x_Detect, SSD1675_Detect, NULL };

 /****************************************************************************************
 * 
@@ -86,6 +86,9 @@ void display_init(char *welcome) {
 			
 	// so far so good
 	if (display && width > 0 && height > 0) {
+		int RST_pin = -1;
+		if ((p = strcasestr(config, "reset")) != NULL) RST_pin = atoi(strchr(p, '=') + 1);
+		
 		// Detect driver interface
 		if (strstr(config, "I2C") && i2c_system_port != -1) {
 			int address = 0x3C;
@@ -94,7 +97,7 @@ void display_init(char *welcome) {
 				
 			init = true;
 			GDS_I2CInit( i2c_system_port, -1, -1, i2c_system_speed ) ;
-			GDS_I2CAttachDevice( display, width, height, address, -1 );
+			GDS_I2CAttachDevice( display, width, height, address, RST_pin );
 		
 			ESP_LOGI(TAG, "Display is I2C on port %u", address);
 		} else if (strstr(config, "SPI") && spi_system_host != -1) {
@@ -105,7 +108,7 @@ void display_init(char *welcome) {
 		
 			init = true;
 			GDS_SPIInit( spi_system_host, spi_system_dc_gpio );
-			GDS_SPIAttachDevice( display, width, height, CS_pin, -1, speed );
+			GDS_SPIAttachDevice( display, width, height, CS_pin, RST_pin, speed );
 				
 			ESP_LOGI(TAG, "Display is SPI host %u with cs:%d", spi_system_host, CS_pin);
 		} else {
@@ -189,7 +192,7 @@ static void displayer_task(void *args) {
 		
 		// handler elapsed track time
 		if (displayer.timer && displayer.state == DISPLAYER_ACTIVE) {
-			char counter[12];
+			char counter[16];
 			TickType_t tick = xTaskGetTickCount();
 			uint32_t elapsed = (tick - displayer.tick) * portTICK_PERIOD_MS;
 			
@@ -198,8 +201,8 @@ static void displayer_task(void *args) {
 				displayer.tick = tick;
 				displayer.elapsed += elapsed / 1000;
 				xSemaphoreGive(displayer.mutex);				
-				if (displayer.elapsed < 3600) sprintf(counter, "%5u:%02u", displayer.elapsed / 60, displayer.elapsed % 60);
-				else sprintf(counter, "%2u:%02u:%02u", displayer.elapsed / 3600, (displayer.elapsed % 3600) / 60, displayer.elapsed % 60);
+				if (displayer.elapsed < 3600) snprintf(counter, 16, "%5u:%02u", displayer.elapsed / 60, displayer.elapsed % 60);
+				else snprintf(counter, 16, "%2u:%02u:%02u", displayer.elapsed / 3600, (displayer.elapsed % 3600) / 60, displayer.elapsed % 60);
 				GDS_TextLine(display, 1, GDS_TEXT_RIGHT, (GDS_TEXT_CLEAR | GDS_TEXT_CLEAR_EOL) | GDS_TEXT_UPDATE, counter);
 				timer_sleep = 1000;
 			} else timer_sleep = max(1000 - elapsed, 0);	
@@ -289,13 +292,14 @@ void displayer_metadata(char *artist, char *album, char *title) {
 /****************************************************************************************
 *
 */
-void displayer_scroll(char *string, int speed) {
+void displayer_scroll(char *string, int speed, int pause) {
 	// need a display!
 	if (!display) return;
 	
 	xSemaphoreTake(displayer.mutex, portMAX_DELAY);

 	if (speed) displayer.speed = speed;
+	if (pause) displayer.pause = pause;
 	displayer.offset = 0;	
 	strncpy(displayer.string, string, SCROLLABLE_SIZE);
 	displayer.string[SCROLLABLE_SIZE] = '\0';
--- a/components/display/display.h
+++ b/components/display/display.h
@@ -42,7 +42,7 @@ enum displayer_time_e 	{ DISPLAYER_ELAPSED, DISPLAYER_REMAINING };
 enum display_bus_cmd_e { DISPLAY_BUS_TAKE, DISPLAY_BUS_GIVE };
 bool (*display_bus)(void *from, enum display_bus_cmd_e cmd);

-void displayer_scroll(char *string, int speed);
+void displayer_scroll(char *string, int speed, int pause);
 void displayer_control(enum displayer_cmd_e cmd, ...);
 void displayer_metadata(char *artist, char *album, char *title);
 void displayer_timer(enum displayer_time_e mode, int elapsed, int duration);
--- a/components/platform_bluetooth/CMakeLists.txt
+++ b/components/platform_bluetooth/CMakeLists.txt
@@ -1,8 +1,6 @@
-idf_component_register(SRCS platform_bt_core.c
-							platform_bt_sink.c
-							platform_bt_source.c
-                       INCLUDE_DIRS .
-                       REQUIRES bt display  esp_common freertos  nvs_flash esp32 spi_flash newlib log  pthread platform_config
+idf_component_register(	SRC_DIRS .
+						INCLUDE_DIRS .
+						REQUIRES bt display  esp_common freertos  nvs_flash esp32 spi_flash newlib   pthread platform_config

 )

--- a/components/platform_config/CMakeLists.txt
+++ b/components/platform_config/CMakeLists.txt
@@ -1,6 +1,6 @@
-idf_component_register(SRCS "nvs_utilities.c" "platform_config.c"
-						INCLUDE_DIRS . ../tools/
-                   REQUIRES newlib nvs_flash json platform_console services vfs
+idf_component_register(	SRC_DIRS . 
+						INCLUDE_DIRS . 
+						REQUIRES newlib nvs_flash json platform_console services vfs
 )


--- a/components/platform_console/CMakeLists.txt
+++ b/components/platform_console/CMakeLists.txt
@@ -1,7 +1,4 @@
-set(COMPONENT_ADD_INCLUDEDIRS .)
-
-set(COMPONENT_SRCS "platform_console.c" "cmd_ota.c" "cmd_nvs.c" "cmd_i2ctools.c" "cmd_squeezelite.c" "cmd_system.c" "cmd_wifi.c" )
-
-set(COMPONENT_REQUIRES squeezelite console nvs_flash spi_flash app_update platform_config vfs pthread wifi-manager)
-
-register_component()
+idf_component_register( SRC_DIRS . 
+						INCLUDE_DIRS .   
+						REQUIRES console nvs_flash spi_flash app_update platform_config vfs pthread wifi-manager 
+						PRIV_REQUIRES display squeezelite )
--- a/components/platform_console/cmd_squeezelite.c
+++ b/components/platform_console/cmd_squeezelite.c
@@ -1,3 +1,4 @@
+
 //size_t esp_console_split_argv(char *line, char **argv, size_t argv_size);
 #include "cmd_squeezelite.h"

@@ -13,9 +14,8 @@
 #include "freertos/event_groups.h"
 #include "pthread.h"
 #include "platform_esp32.h"
-#include "nvs.h"
-#include "nvs_flash.h"
-//extern char current_namespace[];
+#include "config.h"
+
 static const char * TAG = "squeezelite_cmd";
 #define SQUEEZELITE_THREAD_STACK_SIZE (6*1024)
 extern int main(int argc, char **argv);
@@ -36,7 +36,7 @@ static void * squeezelite_runner_thread(){
 	main(thread_parms.argc,thread_parms.argv);
 	return NULL;
 }
-#define ADDITIONAL_SQUEEZELILTE_ARGS 5
+#define ADDITIONAL_SQUEEZELITE_ARGS 5
 static void * squeezelite_thread(){
 	int * exit_code;
 	static bool isRunning=false;
@@ -45,9 +45,6 @@ static void * squeezelite_thread(){
 		return NULL;
 	}
 	isRunning=true;
-//  Let's not wait on WiFi to allow squeezelite to run in bluetooth mode
-//	ESP_LOGI(TAG,"Waiting for WiFi.");
-//	while(!wait_for_wifi()){usleep(100000);};
 	ESP_LOGV(TAG ,"Number of args received: %u",thread_parms.argc );
 	ESP_LOGV(TAG ,"Values:");
    for(int i = 0;i<thread_parms.argc; i++){
@@ -73,6 +70,11 @@ static void * squeezelite_thread(){
 	ESP_LOGV(TAG ,"Freeing argv pointer");
 	free(thread_parms.argv);
 	isRunning=false;
+	ESP_LOGE(TAG, "Exited from squeezelite thread, something's wrong ... rebooting");
+	if(!wait_for_commit()){
+		ESP_LOGW(TAG,"Unable to commit configuration. ");
+	}
+    esp_restart();
 	return NULL;
 }

@@ -87,8 +89,8 @@ static int launchsqueezelite(int argc, char **argv)
    ESP_LOGV(TAG,"Saving args in thread structure");

    thread_parms.argc=0;
-    thread_parms.argv = malloc(sizeof(char**)*(argc+ADDITIONAL_SQUEEZELILTE_ARGS));
-	memset(thread_parms.argv,'\0',sizeof(char**)*(argc+ADDITIONAL_SQUEEZELILTE_ARGS));
+    thread_parms.argv = malloc(sizeof(char**)*(argc+ADDITIONAL_SQUEEZELITE_ARGS));
+	memset(thread_parms.argv,'\0',sizeof(char**)*(argc+ADDITIONAL_SQUEEZELITE_ARGS));

 	for(int i=0;i<argc;i++){
 		ESP_LOGD(TAG ,"assigning parm %u : %s",i,argv[i]);
--- a/components/raop/CMakeLists.txt
+++ b/components/raop/CMakeLists.txt
@@ -1,5 +1,5 @@

-idf_component_register(SRCS dmap_parser.c raop_sink.c raop.c rtp.c util.c   
+idf_component_register(SRC_DIRS .    
 						INCLUDE_DIRS .   
 						REQUIRES newlib platform_config services codecs tools display
 						  
--- a/components/raop/raop.c
+++ b/components/raop/raop.c
@@ -44,7 +44,7 @@
 #include "log_util.h"

 #define RTSP_STACK_SIZE 	(8*1024)
-#define SEARCH_STACK_SIZE	(2*1048)
+#define SEARCH_STACK_SIZE	(3*1048)

 typedef struct raop_ctx_s {
 #ifdef WIN32
@@ -57,9 +57,9 @@ typedef struct raop_ctx_s {
 	struct in_addr peer;	// IP of the iDevice (airplay sender)
 	bool running;
 #ifdef WIN32
-	pthread_t thread, search_thread;
+	pthread_t thread;
 #else
-	TaskHandle_t thread, search_thread, joiner;
+	TaskHandle_t thread, joiner;
 	StaticTask_t *xTaskBuffer;
 	StackType_t xStack[RTSP_STACK_SIZE] __attribute__ ((aligned (4)));
 #endif
@@ -81,11 +81,12 @@ typedef struct raop_ctx_s {
 		char				DACPid[32], id[32];
 		struct in_addr		host;
 		u16_t				port;
+		bool running;
 #ifdef WIN32
 		struct mDNShandle_s *handle;
+		pthread_t thread;
 #else
-		bool running;
-		TaskHandle_t thread, joiner;
+		TaskHandle_t thread;
 		StaticTask_t *xTaskBuffer;
 		StackType_t xStack[SEARCH_STACK_SIZE] __attribute__ ((aligned (4)));;
 		SemaphoreHandle_t destroy_mutex;
@@ -99,7 +100,7 @@ extern log_level	raop_loglevel;
 static log_level 	*loglevel = &raop_loglevel;

 static void*	rtsp_thread(void *arg);
-static void		abort_rtsp(raop_ctx_t *ctx);
+static void		cleanup_rtsp(raop_ctx_t *ctx, bool abort);
 static bool 	handle_rtsp(raop_ctx_t *ctx, int sock);

 static char*	rsa_apply(unsigned char *input, int inlen, int *outlen, int mode);
@@ -240,25 +241,13 @@ void raop_delete(struct raop_ctx_s *ctx) {

 	rtp_end(ctx->rtp);

-	shutdown(ctx->sock, SD_BOTH);
+	shutdown(ctx->sock, SD_BOTH);
 	closesocket(ctx->sock);

 	// terminate search, but do not reclaim memory of pthread if never launched
 	if (ctx->active_remote.handle) {
 		close_mDNS(ctx->active_remote.handle);
 		pthread_join(ctx->active_remote.thread, NULL);
-	}
-
-	// stop broadcasting devices
-	mdns_service_remove(ctx->svr, ctx->svc);
-	mdnsd_stop(ctx->svr);
-#else 
-	// first stop the search task if any
-	if (ctx->active_remote.running) {
-		ctx->active_remote.joiner = xTaskGetCurrentTaskHandle();
-		ctx->active_remote.running = false;
-
-		vTaskResume(ctx->active_remote.thread);
 	}

 	// stop broadcasting devices
@@ -267,11 +256,12 @@ void raop_delete(struct raop_ctx_s *ctx) {
 #else 
 	// then the RTSP task
 	ctx->joiner = xTaskGetCurrentTaskHandle();
-	ctx->running = false;
-
 	ctx->running = false;

 	ulTaskNotifyTake(pdFALSE, portMAX_DELAY);
+	vTaskDelete(ctx->thread);
+	heap_caps_free(ctx->xTaskBuffer);
+
 	shutdown(ctx->sock, SHUT_RDWR);
 	closesocket(ctx->sock);
 	
@@ -405,7 +395,7 @@ static void *rtsp_thread(void *arg) {
 		FD_SET(sock, &rfds);

 		n = select(sock + 1, &rfds, NULL, NULL, &timeout);
-		
+		
 		if (!n && !ctx->abort) continue;

 		if (n > 0) res = handle_rtsp(ctx, sock);
@@ -515,10 +505,10 @@ static bool handle_rtsp(raop_ctx_t *ctx, int sock)
 			NFREE(p);
 		}

-		// on announce, search remote
+		// on announce, search remote
 		if ((buf = kd_lookup(headers, "DACP-ID")) != NULL) strcpy(ctx->active_remote.DACPid, buf);
 		if ((buf = kd_lookup(headers, "Active-Remote")) != NULL) strcpy(ctx->active_remote.id, buf);
-
+
 #ifdef WIN32	
 		ctx->active_remote.handle = init_mDNS(false, ctx->host);
 		pthread_create(&ctx->active_remote.thread, NULL, &search_remote, ctx);
@@ -580,37 +570,14 @@ static bool handle_rtsp(raop_ctx_t *ctx, int sock)
 		unsigned short seqno = 0;
 		unsigned rtptime = 0;
 		char *p;
-
+
 		buf = kd_lookup(headers, "RTP-Info");
+		if ((p = strcasestr(buf, "seq")) != NULL) sscanf(p, "%*[^=]=%hu", &seqno);
+		if ((p = strcasestr(buf, "rtptime")) != NULL) sscanf(p, "%*[^=]=%u", &rtptime);

 		// only send FLUSH if useful (discards frames above buffer head and top)
 		if (ctx->rtp && rtp_flush(ctx->rtp, seqno, rtptime, true)) {
-		// only send FLUSH if useful (discards frames above buffer head and top)
-		if (ctx->rtp && rtp_flush(ctx->rtp, seqno, rtptime))
-			success = ctx->cmd_cb(RAOP_FLUSH);
-
-	}  else if (!strcmp(method, "TEARDOWN")) {
-
-		rtp_end(ctx->rtp);
-
-		ctx->rtp = NULL;
-
-		// need to make sure no search is on-going and reclaim pthread memory
-#ifdef WIN32
-		if (ctx->active_remote.handle) close_mDNS(ctx->active_remote.handle);
-		pthread_join(ctx->search_thread, NULL);
-#else
-		ctx->active_remote.joiner = xTaskGetCurrentTaskHandle();
-		ctx->active_remote.running = false;
-
-		xSemaphoreTake(ctx->active_remote.destroy_mutex, portMAX_DELAY);
-		vTaskDelete(ctx->active_remote.thread);
-		vSemaphoreDelete(ctx->active_remote.thread);
-		
-		heap_caps_free(ctx->active_remote.xTaskBuffer);
-		
-		LOG_INFO("[%p]: mDNS search task terminated", ctx);
-#endif
+			success = ctx->cmd_cb(RAOP_FLUSH);
 			rtp_flush_release(ctx->rtp);
 		}	

@@ -631,18 +598,16 @@ static bool handle_rtsp(raop_ctx_t *ctx, int sock)
 			success = ctx->cmd_cb(RAOP_VOLUME, volume);
 		} else if (body && (p = strcasestr(body, "progress")) != NULL) {
 			int start, current, stop = 0;
-
-			// we want ms, not s
-			sscanf(p, "%*[^:]:%u/%u/%u", &start, &current, &stop);
-			current = ((current - start) / 44100) * 1000;
-			if (stop) stop = ((stop - start) / 44100) * 1000;
+
+			// we want ms, not s
+			sscanf(p, "%*[^:]:%u/%u/%u", &start, &current, &stop);
 			current = ((current - start) / 44100) * 1000;
 			if (stop) stop = ((stop - start) / 44100) * 1000;
 			else stop = -1;
 			LOG_INFO("[%p]: SET PARAMETER progress %d/%u %s", ctx, current, stop, p);
 			success = ctx->cmd_cb(RAOP_PROGRESS, max(current, 0), stop);
 		} else if (body && ((p = kd_lookup(headers, "Content-Type")) != NULL) && !strcasecmp(p, "application/x-dmap-tagged")) {
-			struct metadata_s metadata;
+			struct metadata_s metadata;
 			dmap_settings settings = {
 				NULL, NULL, NULL, NULL,	NULL, NULL,	NULL, on_dmap_string, NULL,
 				NULL
@@ -651,6 +616,10 @@ static bool handle_rtsp(raop_ctx_t *ctx, int sock)
 			LOG_INFO("[%p]: received metadata", ctx);
 			settings.ctx = &metadata;
 			memset(&metadata, 0, sizeof(struct metadata_s));
+			if (!dmap_parse(&settings, body, len)) {
+				LOG_INFO("[%p]: received metadata\n\tartist: %s\n\talbum:  %s\n\ttitle:  %s",
+						 ctx, metadata.artist, metadata.album, metadata.title);
+				success = ctx->cmd_cb(RAOP_METADATA, metadata.artist, metadata.album, metadata.title);
 				free_metadata(&metadata);
 			}
 		} else {
@@ -678,26 +647,28 @@ static bool handle_rtsp(raop_ctx_t *ctx, int sock)
 	NFREE(body);
 	NFREE(buf);
 	kd_free(resp);
-	kd_free(headers);
+	kd_free(headers);

 	return true;
 }

-/*----------------------------------------------------------------------------*/
+/*----------------------------------------------------------------------------*/
 void cleanup_rtsp(raop_ctx_t *ctx, bool abort) {
 	// first stop RTP process
 	if (ctx->rtp) {
+		rtp_end(ctx->rtp);
+		ctx->rtp = NULL;
+		if (abort) LOG_INFO("[%p]: RTP thread aborted", ctx);
+	}

-		ctx->rtp = NULL;
 	if (ctx->active_remote.running) {
-	}	
 #ifdef WIN32
 		pthread_join(ctx->active_remote.thread, NULL);
 		close_mDNS(ctx->active_remote.handle);
 #else
 		// need to make sure no search is on-going and reclaim task memory
+		ctx->active_remote.running = false;
 		xSemaphoreTake(ctx->active_remote.destroy_mutex, portMAX_DELAY);
-		xSemaphoreTake(ctx->active_remote.destroy_mutex, portMAX_DELAY);
 		vTaskDelete(ctx->active_remote.thread);
 		vSemaphoreDelete(ctx->active_remote.thread);

@@ -947,9 +918,8 @@ static unsigned int token_decode(const char *token)
 	return DECODE_ERROR;
 	for (i = 0; i < 4; i++) {
 	val *= 64;
-	if (token[i] == '=')
-		marker++;
-	else if (marker > 0)
+	if (token[i] == '=')
+		marker++;
 	else if (marker > 0)
 		return DECODE_ERROR;
 	else
--- a/components/raop/rtp.c
+++ b/components/raop/rtp.c
@@ -38,6 +38,7 @@
 #include <sys/stat.h>
 #include <stdint.h>
 #include <fcntl.h>
+#include <assert.h>

 #include "platform.h"
 #include "rtp.h"
@@ -48,11 +49,10 @@
 #ifdef WIN32
 #include <openssl/aes.h>
 #include "alac_wrapper.h"
-#include <assert.h>
+#define MSG_DONTWAIT 0
 #else
 #include "esp_pthread.h"
 #include "esp_system.h"
-#include "assert.h"
 #include <mbedtls/version.h>
 #include <mbedtls/aes.h>
 #include "alac_wrapper.h"
@@ -269,24 +269,24 @@ rtp_resp_t rtp_init(struct in_addr host, int latency, char *aeskey, char *aesiv,
 	// create http port and start listening
 	resp.cport = ctx->rtp_sockets[CONTROL].lport;
 	resp.tport = ctx->rtp_sockets[TIMING].lport;
-	resp.aport = ctx->rtp_sockets[DATA].lport;
-	
+	resp.aport = ctx->rtp_sockets[DATA].lport;
+		
 	ctx->running = true;
-		ctx->running = true;
+
 #ifdef WIN32
-		pthread_create(&ctx->thread, NULL, rtp_thread_func, (void *) ctx);
-#else
-		// xTaskCreate((TaskFunction_t) rtp_thread_func, "RTP_thread", RTP_TASK_SIZE, ctx,  CONFIG_ESP32_PTHREAD_TASK_PRIO_DEFAULT + 1 , &ctx->thread);
-		ctx->xTaskBuffer = (StaticTask_t*) heap_caps_malloc(sizeof(StaticTask_t), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
+	pthread_create(&ctx->thread, NULL, rtp_thread_func, (void *) ctx);
+#else
+	ctx->xTaskBuffer = (StaticTask_t*) heap_caps_malloc(sizeof(StaticTask_t), MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
 	ctx->thread = xTaskCreateStatic( (TaskFunction_t) rtp_thread_func, "RTP_thread", RTP_STACK_SIZE, ctx,
-										 CONFIG_ESP32_PTHREAD_TASK_PRIO_DEFAULT + 1, ctx->xStack, ctx->xTaskBuffer );
+									 CONFIG_ESP32_PTHREAD_TASK_PRIO_DEFAULT + 1, ctx->xStack, ctx->xTaskBuffer );
+#endif
+	
 	// cleanup everything if we failed
 	if (!rc) {	
 		LOG_ERROR("[%p]: cannot start RTP", ctx);
 		rtp_end(ctx);
 		ctx = NULL;
 	}	
-
 	
 	resp.ctx = ctx;	
 	return resp;
@@ -328,7 +328,7 @@ void rtp_end(rtp_t *ctx)
 	fclose(ctx->rtpOUT);
 #endif
 }
-
+
 /*---------------------------------------------------------------------------*/
 bool rtp_flush(rtp_t *ctx, unsigned short seqno, unsigned int rtptime, bool exit_locked)
 {
@@ -341,7 +341,7 @@ bool rtp_flush(rtp_t *ctx, unsigned short seqno, unsigned int rtptime)
 	} else {
 		pthread_mutex_lock(&ctx->ab_mutex);
 		buffer_reset(ctx->audio_buffer);
-		ctx->playing = false;
+		ctx->playing = false;
 		ctx->flush_seqno = seqno;
 		if (!exit_locked) pthread_mutex_unlock(&ctx->ab_mutex);
 	}
@@ -350,8 +350,13 @@ bool rtp_flush(rtp_t *ctx, unsigned short seqno, unsigned int rtptime)

 	return rc;
 }
-
-/*---------------------------------------------------------------------------*/
+
+/*---------------------------------------------------------------------------*/
+void rtp_flush_release(rtp_t *ctx) {
+	pthread_mutex_unlock(&ctx->ab_mutex);
+}
+
+
 /*---------------------------------------------------------------------------*/
 void rtp_record(rtp_t *ctx, unsigned short seqno, unsigned rtptime) {
 	ctx->record.seqno = seqno;
@@ -444,25 +449,23 @@ static void buffer_put_packet(rtp_t *ctx, seq_t seqno, unsigned rtptime, bool fi
 		abuf = ctx->audio_buffer + BUFIDX(seqno);
 		ctx->ab_write = seqno;
 		LOG_SDEBUG("packet expected seqno:%hu rtptime:%u (W:%hu R:%hu)", seqno, rtptime, ctx->ab_write, ctx->ab_read);
+
+	} else if (seq_order(ctx->ab_write, seqno)) {
+		seq_t i;
 		u32_t now;

 		// newer than expected
 		if (ctx->latency && seq_order(ctx->latency / ctx->frame_size, seqno - ctx->ab_write - 1)) {
 			// only get rtp latency-1 frames back (last one is seqno)
 			LOG_WARN("[%p] too many missing frames %hu seq: %hu, (W:%hu R:%hu)", ctx, seqno - ctx->ab_write - 1, seqno, ctx->ab_write, ctx->ab_read);
-			ctx->ab_write = seqno - ctx->latency / ctx->frame_size;
-		}
-		if (ctx->latency && seq_order(ctx->latency / ctx->frame_size, seqno - ctx->ab_read)) {
-			// if ab_read is lagging more than http latency, advance it
-			LOG_WARN("[%p] on hold for too long %hu (W:%hu R:%hu)", ctx, seqno - ctx->ab_read + 1, ctx->ab_write, ctx->ab_read);
-			ctx->ab_read = seqno - ctx->latency / ctx->frame_size + 1;
-		}
-		if (rtp_request_resend(ctx, ctx->ab_write + 1, seqno-1)) {
-			seq_t i;
-			u32_t now = gettime_ms();
-			for (i = ctx->ab_write + 1; seq_order(i, seqno); i++) {
-				ctx->audio_buffer[BUFIDX(i)].rtptime = rtptime - (seqno-i)*ctx->frame_size;
+			ctx->ab_write = seqno - ctx->latency / ctx->frame_size;
+		}
+
+		// need to request re-send and adjust timing of gaps
+		rtp_request_resend(ctx, ctx->ab_write + 1, seqno-1);
+		for (now = gettime_ms(), i = ctx->ab_write + 1; seq_order(i, seqno); i++) {
 			ctx->audio_buffer[BUFIDX(i)].rtptime = rtptime - (seqno-i)*ctx->frame_size;
+			ctx->audio_buffer[BUFIDX(i)].last_resend = now;
 		}

 		LOG_DEBUG("[%p]: packet newer seqno:%hu rtptime:%u (W:%hu R:%hu)", ctx, seqno, rtptime, ctx->ab_write, ctx->ab_read);
@@ -520,14 +523,21 @@ static void buffer_push_packet(rtp_t *ctx) {

 		if (now > playtime) {
 			LOG_DEBUG("[%p]: discarded frame now:%u missed by:%d (W:%hu R:%hu)", ctx, now, now - playtime, ctx->ab_write, ctx->ab_read);
+			ctx->discarded++;
+			curframe->ready = 0;
+		} else if (playtime - now <= hold) {
+			if (curframe->ready) {
+				ctx->data_cb((const u8_t*) curframe->data, curframe->len, playtime);
+				curframe->ready = 0;
+			} else {
+				LOG_DEBUG("[%p]: created zero frame (W:%hu R:%hu)", ctx, ctx->ab_write, ctx->ab_read);
+				ctx->data_cb(silence_frame, ctx->frame_size * 4, playtime);
 				ctx->silent_frames++;
 			}
 		} else if (curframe->ready) {
-			ctx->data_cb((const u8_t*) curframe->data, curframe->len, playtime);
-			curframe->ready = 0;
-		} else if (playtime - now <= hold) {
-			LOG_DEBUG("[%p]: created zero frame (W:%hu R:%hu)", ctx, ctx->ab_write, ctx->ab_read);
-			ctx->data_cb(silence_frame, ctx->frame_size * 4, playtime);
+			ctx->data_cb((const u8_t*) curframe->data, curframe->len, playtime);
+			curframe->ready = 0;
+		} else {
 			break;
 		}

@@ -572,7 +582,7 @@ static void *rtp_thread_func(void *arg) {
 		ntp_sent = rtp_request_timing(ctx);
 	}

-	while (ctx->running) {
+	while (ctx->running) {
 		ssize_t plen;
 		char type;
 		socklen_t rtp_client_len = sizeof(struct sockaddr_in);
@@ -585,14 +595,18 @@ static void *rtp_thread_func(void *arg) {

 		if (select(sock + 1, &fds, NULL, NULL, &timeout) <= 0) continue;

-		for (i = 0; i < 3; i++)
+		for (i = 0; i < 3; i++)
 			if (FD_ISSET(ctx->rtp_sockets[i].sock, &fds)) idx = i;

 		plen = recvfrom(ctx->rtp_sockets[idx].sock, packet, MAX_PACKET, MSG_DONTWAIT, (struct sockaddr*) &ctx->rtp_host, &rtp_client_len);

 		if (!ntp_sent) {
 			LOG_WARN("[%p]: NTP request not send yet", ctx);
-			ntp_sent = rtp_request_timing(ctx);
+			ntp_sent = rtp_request_timing(ctx);
+		}
+
+		if (plen <= 0) {
+			LOG_WARN("Nothing received on a readable socket %d", plen);
 			continue;
 		}
 		
@@ -711,6 +725,11 @@ static void *rtp_thread_func(void *arg) {

 				LOG_DEBUG("[%p]: Timing references local:%llu, remote:%llx (delta:%lld, sum:%lld, adjust:%lld, gaps:%d)",
 						  ctx, ctx->timing.local, ctx->timing.remote);
+
+				break;
+			}
+			
+			default: {
 				LOG_WARN("Unknown packet received %x", (int) type);
 				break;
 			}
@@ -752,7 +771,7 @@ static bool rtp_request_timing(rtp_t *ctx) {

 	// no address from sender, need to wait for 1st packet to be received
 	if (host.sin_addr.s_addr == INADDR_ANY) return false;
-
+
 	host.sin_port = htons(ctx->rtp_sockets[TIMING].rport);

 	if (sizeof(req) != sendto(ctx->rtp_sockets[TIMING].sock, req, sizeof(req), MSG_DONTWAIT, (struct sockaddr*) &host, sizeof(host))) {
@@ -778,7 +797,7 @@ static bool rtp_request_resend(rtp_t *ctx, seq_t first, seq_t last) {
 	*(u16_t*)(req+2) = htons(1);  // our seqnum
 	*(u16_t*)(req+4) = htons(first);  // missed seqnum
 	*(u16_t*)(req+6) = htons(last-first+1);  // count
-
+
 	ctx->rtp_host.sin_port = htons(ctx->rtp_sockets[CONTROL].rport);

 	if (sizeof(req) != sendto(ctx->rtp_sockets[CONTROL].sock, req, sizeof(req), MSG_DONTWAIT, (struct sockaddr*) &ctx->rtp_host, sizeof(ctx->rtp_host))) {
--- a/components/raop/rtp.h
+++ b/components/raop/rtp.h
@@ -14,7 +14,8 @@ rtp_resp_t 			rtp_init(struct in_addr host, int latency,
 							short unsigned pCtrlPort, short unsigned pTimingPort,
 							raop_cmd_cb_t cmd_cb, raop_data_cb_t data_cb);
 void			 	rtp_end(struct rtp_s *ctx);
-bool 				rtp_flush(struct rtp_s *ctx, unsigned short seqno, unsigned rtptime);
+bool 				rtp_flush(struct rtp_s *ctx, unsigned short seqno, unsigned rtptime, bool exit_locked);
+void				rtp_flush_release(struct rtp_s *ctx);
 void 				rtp_record(struct rtp_s *ctx, unsigned short seqno, unsigned rtptime);
 void 				rtp_metadata(struct rtp_s *ctx, struct metadata_s *metadata);

--- a/components/services/CMakeLists.txt
+++ b/components/services/CMakeLists.txt
@@ -1,6 +1,6 @@
-idf_component_register(SRCS "accessors.c" "led.c" "audio_controls.c" "battery.c" "buttons.c" "services.c" "monitor.c" "rotary_encoder.c" 
-						INCLUDE_DIRS . ../tools/
-						REQUIRES json platform_config
+idf_component_register(SRC_DIRS .
+						INCLUDE_DIRS . 
+						REQUIRES json tools platform_config

 )

--- a/components/services/monitor.c
+++ b/components/services/monitor.c
@@ -23,6 +23,7 @@
 #include "accessors.h"

 #define MONITOR_TIMER	(10*1000)
+#define SCRATCH_SIZE	256

 static const char *TAG = "monitor";

@@ -54,7 +55,7 @@ static void task_stats( void ) {
 	current.tasks = malloc( current.n * sizeof( TaskStatus_t ) );
 	current.n = uxTaskGetSystemState( current.tasks, current.n, &current.total );
 	
-	static EXT_RAM_ATTR char scratch[128+1];
+	static EXT_RAM_ATTR char scratch[SCRATCH_SIZE];
 	*scratch = '\0';

 #ifdef CONFIG_FREERTOS_GENERATE_RUN_TIME_STATS
@@ -63,7 +64,8 @@ static void task_stats( void ) {
 	for(int i = 0, n = 0; i < current.n; i++ ) {
 		for (int j = 0; j < previous.n; j++) {
 			if (current.tasks[i].xTaskNumber == previous.tasks[j].xTaskNumber) {
-				n += sprintf(scratch + n, "%16s %2u%% s:%5u", current.tasks[i].pcTaskName, 
+				n += snprintf(scratch + n, SCRATCH_SIZE - n, "%16s (%u) %2u%% s:%5u", current.tasks[i].pcTaskName, 
+																		   current.tasks[i].eCurrentState,
 																		   100 * (current.tasks[i].ulRunTimeCounter - previous.tasks[j].ulRunTimeCounter) / elapsed, 
 																		   current.tasks[i].usStackHighWaterMark);
 				if (i % 3 == 2 || i == current.n - 1) {
--- a/components/squeezelite-ota/CMakeLists.txt
+++ b/components/squeezelite-ota/CMakeLists.txt
@@ -1,4 +1,4 @@
-idf_component_register(SRCS  "squeezelite-ota.c"
+idf_component_register(SRC_DIRS .
 					  INCLUDE_DIRS . 
 					  REQUIRES console spi_flash console freertos platform_console esp_https_ota
 					  )
--- a/components/squeezelite/CMakeLists.txt
+++ b/components/squeezelite/CMakeLists.txt
@@ -1,36 +1,8 @@

-idf_component_register(SRCS "alac.c" 
-							"buffer.c"
-							"controls.c" 
-							"decode_external.c" 
-							"decode.c"
-							"display.c"
-							"embedded.c" 
-							"flac.c" 
-							"helix-aac.c"
-							"mad.c" 
-							"main.c"
-							"mpg.c" 
-							"opus.c"
-							"output_bt.c"
-							"output_embedded.c" 
-							"output_i2s.c" 
-							"output_pack.c" 
-							"output_visu.c"
-							"output.c" 
-							"pcm.c" 
-							"process.c"
-							"resample.c" 
-							"resample16.c"
-							"slimproto.c"
-							"stream.c"
-							"utils.c"
-							"vorbis.c"
-							"a1s/ac101.c"
-							"tas57xx/dac_57xx.c" 
-							"external/dac_external.c" 
+
+idf_component_register( SRC_DIRS . external a1s tas57xx
 						INCLUDE_DIRS .  a1s 
-						REQUIRES 	newlib 
+						PRIV_REQUIRES 	newlib 
 									esp_common 
 									esp-dsp
 						  			display 
@@ -58,4 +30,8 @@ set_source_files_properties(flac.c
 )

 add_definitions(-DLINKALL -DLOOPBACK -DNO_FAAD -DRESAMPLE16 -DEMBEDDED -DTREMOR_ONLY -DBYTES_PER_FRAME=4)
-add_compile_options (-O3)
+add_compile_options (-O3 ) 
+
+
+
+  
--- a/components/squeezelite/decode_external.c
+++ b/components/squeezelite/decode_external.c
@@ -206,6 +206,10 @@ static bool raop_sink_cmd_handler(raop_event_t event, va_list args)
 				// in how many ms will the most recent block play 
 				ms = ((u64_t) ((_buf_used(outputbuf) - raop_sync.len) / BYTES_PER_FRAME + output.device_frames + output.frames_in_process) * 1000) / RAOP_SAMPLE_RATE - (now - output.updated);
 				raop_sync.error[raop_sync.idx] = (raop_sync.playtime - now) - ms;
+				if (abs(raop_sync.error[raop_sync.idx]) > 1000) {
+					LOG_INFO("erroneous sync point %d", raop_sync.error[raop_sync.idx]);
+					raop_sync.error[raop_sync.idx] = raop_sync.error[raop_sync.idx] > 0 ? 1000 : -1000;
+				}
 				sync_nb = SYNC_NB;
 				LOG_DEBUG("head local:%u, remote:%u (delta:%d)", ms, raop_sync.playtime - now, raop_sync.error[raop_sync.idx]);
 				LOG_DEBUG("obuf:%u, sync_len:%u, devframes:%u, inproc:%u", _buf_used(outputbuf), raop_sync.len, output.device_frames, output.frames_in_process);
--- a/components/squeezelite/display.c
+++ b/components/squeezelite/display.c
@@ -100,7 +100,7 @@ static struct {
 #define SB_HEIGHT		32

 // lenght are number of frames, i.e. 2 channels of 16 bits
-#define	FFT_LEN_BIT	6		
+#define	FFT_LEN_BIT	7		
 #define	FFT_LEN		(1 << FFT_LEN_BIT)
 #define RMS_LEN_BIT	6
 #define RMS_LEN		(1 << RMS_LEN_BIT)
@@ -115,7 +115,7 @@ static struct scroller_s {
 	u16_t mode;	
 	s16_t by;
 	// scroller management & sharing between grfg and scrolling task
-	bool active, first;
+	bool active, first, overflow;
 	int scrolled;
 	struct {
 		u8_t *frame;
@@ -151,7 +151,7 @@ static EXT_RAM_ATTR struct {
 #define ANIM_SCREEN_2     0x08 

 static u8_t ANIC_resp = ANIM_NONE;
-static u8_t SETD_width;
+static uint16_t SETD_width;

 #define SCROLL_STACK_SIZE	(3*1024)
 #define LINELEN				40
@@ -234,7 +234,7 @@ bool sb_display_init(void) {
 	displayer.task = xTaskCreateStatic( (TaskFunction_t) displayer_task, "displayer_thread", SCROLL_STACK_SIZE, NULL, ESP_TASK_PRIO_MIN + 1, xStack, &xTaskBuffer);
 	
 	// size scroller (width + current screen)
-	scroller.scroll.max = (displayer.width * displayer.height / 8) * (10 + 1);
+	scroller.scroll.max = (displayer.width * displayer.height / 8) * (15 + 1);
 	scroller.scroll.frame = malloc(scroller.scroll.max);
 	scroller.back.frame = malloc(displayer.width * displayer.height / 8);
 	scroller.frame = malloc(displayer.width * displayer.height / 8);
@@ -316,8 +316,9 @@ static void send_server(void) {
 		pkt_header.id = 0xfe; // id 0xfe is width S:P:Squeezebox2
 		pkt_header.length = htonl(sizeof(pkt_header) +  2 - 8);

+		SETD_width = htons(SETD_width);
 		send_packet((u8_t *)&pkt_header, sizeof(pkt_header));
-		send_packet(&SETD_width, 2);
+		send_packet((uint8_t*) &SETD_width, 2);

 		SETD_width = 0;
 	}	
@@ -559,6 +560,7 @@ static void grfs_handler(u8_t *data, int len) {
 		scroller.mode = htons(pkt->mode);
 		scroller.scroll.width = htons(pkt->width);
 		scroller.first = true;
+		scroller.overflow = false;
 		
 		// background excludes space taken by visu (if any)
 		scroller.back.width = displayer.width - ((visu.mode && visu.row < SB_HEIGHT) ? visu.width : 0);
@@ -576,13 +578,14 @@ static void grfs_handler(u8_t *data, int len) {
 	}	

 	// copy scroll frame data (no semaphore needed)
-	if (scroller.scroll.size + size < scroller.scroll.max) {
+	if (scroller.scroll.size + size < scroller.scroll.max && !scroller.overflow) {
 		memcpy(scroller.scroll.frame + offset, data + sizeof(struct grfs_packet), size);
 		scroller.scroll.size = offset + size;
-		LOG_INFO("scroller current size %u", scroller.scroll.size);
+		LOG_INFO("scroller current size %u (w:%u)", scroller.scroll.size, scroller.scroll.width);
 	} else {
-		LOG_INFO("scroller too larger %u/%u/%u", scroller.scroll.size + size, scroller.scroll.max, scroller.scroll.width);
-		scroller.scroll.width = scroller.scroll.size / (displayer.height / 8);
+		LOG_INFO("scroller too large %u/%u (w:%u)", scroller.scroll.size + size, scroller.scroll.max, scroller.scroll.width);
+		scroller.scroll.width = scroller.scroll.size / (displayer.height / 8) - scroller.back.width;
+		scroller.overflow = true;
 	}	
 }

@@ -736,10 +739,10 @@ static void visu_update(void) {
 */
 void spectrum_limits(int min, int n, int pos) {
 	if (n / 2) {
-		int step = ((DISPLAY_BW - min) * visu.spectrum_scale * 2) / n;
+		int step = ((DISPLAY_BW - min) * visu.spectrum_scale)  / (n/2);
 		visu.bars[pos].limit = min + step;
 		for (int i = 1; i < n/2; i++) visu.bars[pos+i].limit = visu.bars[pos+i-1].limit + step;
-		spectrum_limits(visu.bars[pos + n/2 - 1].limit, n/2, pos + n/2);
+		spectrum_limits(visu.bars[pos + n/2 - 1].limit, n - n/2, pos + n/2);
 	} else {
 		visu.bars[pos].limit = DISPLAY_BW;
 	}	
@@ -860,7 +863,7 @@ static void displayer_task(void *args) {
 			// by default go for the long sleep, will change below if required
 			scroller.wake = LONG_WAKE;
 			
-			// do we have more to scroll (scroll.width is the last column from which we havea  full zone)
+			// do we have more to scroll (scroll.width is the last column from which we have a full zone)
 			if (scroller.by > 0 ? (scroller.scrolled <= scroller.scroll.width) : (scroller.scrolled >= 0)) {
 				memcpy(scroller.frame, scroller.back.frame, scroller.back.width * displayer.height / 8);
 				for (int i = 0; i < scroller.width * displayer.height / 8; i++) scroller.frame[i] |= scroller.scroll.frame[scroller.scrolled * displayer.height / 8 + i];
--- a/components/squeezelite/embedded.h
+++ b/components/squeezelite/embedded.h
@@ -6,6 +6,7 @@
 /* 	must provide 
 		- mutex_create_p
 		- pthread_create_name
+		- register_xxx (see below)
 		- stack size
 		- s16_t, s32_t, s64_t and u64_t
 		- PLAYER_ID / custom_player_id
@@ -17,6 +18,11 @@
 	recommended to add platform specific include(s) here
 */	

+typedef int16_t   s16_t;
+typedef int32_t   s32_t;
+typedef int64_t   s64_t;
+typedef unsigned long long u64_t;
+	
 #ifndef PTHREAD_STACK_MIN
 #define PTHREAD_STACK_MIN	256
 #endif
@@ -29,18 +35,17 @@
 #define OUTPUT_THREAD_STACK_SIZE  6 * 1024
 #define IR_THREAD_STACK_SIZE      6 * 1024

+// number of 5s times search for a server will happen beforee slimproto exits (0 = no limit)
+#define MAX_SERVER_RETRIES	5
+
 // or can be as simple as #define PLAYER_ID 100
-#define PLAYER_ID custom_player_id;
+#define PLAYER_ID custom_player_id
 extern u8_t custom_player_id;

 #define BASE_CAP "Model=squeezeesp32,AccuratePlayPoints=1,HasDigitalOut=1,HasPolarityInversion=1,Firmware=" VERSION
+// to force some special buffer attribute
 #define EXT_BSS __attribute__((section(".ext_ram.bss"))) 

-typedef int16_t   s16_t;
-typedef int32_t   s32_t;
-typedef int64_t   s64_t;
-typedef unsigned long long u64_t;
-
 // all exit() calls are made from main thread (or a function called in main thread)
 #define exit(code) { int ret = code; pthread_exit(&ret); }
 #define gettime_ms _gettime_ms_
--- a/components/squeezelite/slimproto.c
+++ b/components/squeezelite/slimproto.c
@@ -773,7 +773,7 @@ void wake_controller(void) {
 	wake_signal(wake_e);
 }

-in_addr_t discover_server(char *default_server) {
+in_addr_t discover_server(char *default_server, int max) {
 	struct sockaddr_in d;
 	struct sockaddr_in s;
 	char buf[32], port_d[] = "JSON", clip_d[] = "CLIP";
@@ -827,7 +827,7 @@ in_addr_t discover_server(char *default_server) {
 			server_addr(default_server, &s.sin_addr.s_addr, &port);
 		}

-	} while (s.sin_addr.s_addr == 0 && running);
+	} while (s.sin_addr.s_addr == 0 && running && (!max || --max));

 	closesocket(disc_sock);

@@ -858,7 +858,7 @@ void slimproto(log_level level, char *server, u8_t mac[6], const char *name, con
 	}

 	if (!slimproto_ip) {
-		slimproto_ip = discover_server(server);
+		slimproto_ip = discover_server(server, 0);
 	}

 	if (!slimproto_port) {
@@ -937,10 +937,18 @@ void slimproto(log_level level, char *server, u8_t mac[6], const char *name, con
 				sleep(5);
 			}

-			// rediscover server if it was not set at startup
+#if EMBEDDED
+			// in embedded we give up after a while no matter what
+			if (++failed_connect > 5 && !server) {
+				slimproto_ip = serv_addr.sin_addr.s_addr = discover_server(NULL, MAX_SERVER_RETRIES);
+				if (!slimproto_ip) return;
+			} else if (MAX_SERVER_RETRIES && failed_connect > 5 * MAX_SERVER_RETRIES) return;
+#else
+			// rediscover server if it was not set at startup or exit 
 			if (!server && ++failed_connect > 5) {
-				slimproto_ip = serv_addr.sin_addr.s_addr = discover_server(NULL);
+				slimproto_ip = serv_addr.sin_addr.s_addr = discover_server(NULL, 0);
 			} 
+#endif	

 		} else {

--- a/components/telnet/CMakeLists.txt
+++ b/components/telnet/CMakeLists.txt
@@ -1,4 +1,4 @@
-idf_component_register(SRCS "telnet.c" "libtelnet/libtelnet.c"
+idf_component_register(SRC_DIRS . libtelnet
 						INCLUDE_DIRS .  libtelnet 
 						REQUIRES platform_config services 
 )
--- a/components/tools/CMakeLists.txt
+++ b/components/tools/CMakeLists.txt
@@ -1,4 +1,4 @@
-idf_component_register(SRCS "utf8.c"  
+idf_component_register(SRC_DIRS .  
 						REQUIRES esp_common  pthread 
                    	INCLUDE_DIRS .
                    	)
--- a/components/wifi-manager/CMakeLists.txt
+++ b/components/wifi-manager/CMakeLists.txt
@@ -1,7 +1,7 @@
-idf_component_register(SRCS "dns_server.c" "http_server.c" "wifi_manager.c"
-                       INCLUDE_DIRS .
-                       REQUIRES esp_common newlib freertos  spi_flash nvs_flash mdns pthread wpa_supplicant platform_console  squeezelite-ota 
-                       EMBED_FILES style.css code.js index.html bootstrap.min.css.gz jquery.min.js.gz popper.min.js.gz bootstrap.min.js.gz
+idf_component_register( SRC_DIRS .
+						INCLUDE_DIRS .
+						REQUIRES esp_common newlib freertos  spi_flash nvs_flash mdns pthread wpa_supplicant platform_console  squeezelite-ota 
+						EMBED_FILES style.css code.js index.html bootstrap.min.css.gz jquery.min.js.gz popper.min.js.gz bootstrap.min.js.gz


 )
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -1,5 +1,6 @@
-idf_component_register(SRCS "esp_app_main.c"  
+idf_component_register(SRC_DIRS .  
 						REQUIRES esp_common  pthread squeezelite-ota platform_console telnet
                    	INCLUDE_DIRS .
                    	EMBED_FILES ../server_certs/github.pem
                    	)
+                    	
--- a/main/esp_app_main.c
+++ b/main/esp_app_main.c
@@ -73,6 +73,18 @@ extern void	display_init(char *welcome);

 /* brief this is an exemple of a callback that you can setup in your own app to get notified of wifi manager event */
 void cb_connection_got_ip(void *pvParameter){
+	static ip4_addr_t ip;
+	tcpip_adapter_ip_info_t ipInfo; 
+
+	tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &ipInfo);
+	if (ip.addr && ipInfo.ip.addr != ip.addr) {
+		ESP_LOGW(TAG, "IP change, need to reboot");
+		if(!wait_for_commit()){
+			ESP_LOGW(TAG,"Unable to commit configuration. ");
+		}
+		esp_restart();
+	}
+	ip.addr = ipInfo.ip.addr;
 	ESP_LOGI(TAG, "I have a connection!");
 	xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
 	bWifiConnected=true;
--- a/plugin/SqueezeESP32.zip
+++ b/plugin/SqueezeESP32.zip
--- a/plugin/SqueezeESP32/Graphics.pm
+++ b/plugin/SqueezeESP32/Graphics.pm
@@ -15,84 +15,45 @@ my $VISUALIZER_VUMETER = 1;
 my $VISUALIZER_SPECTRUM_ANALYZER = 2;
 my $VISUALIZER_WAVEFORM = 3;

-my $width = $prefs->get('width') || 128;
-my $spectrum_scale = $prefs->get('spectrum_scale') || 50;
+{
+	#__PACKAGE__->mk_accessor('array', 'modes');
+	__PACKAGE__->mk_accessor('rw', 'modes');
+	__PACKAGE__->mk_accessor('rw', qw(vfdmodel));
+}

-my @modes = (
-	# mode 0
-	{ desc => ['BLANK'],
-	  bar => 0, secs => 0,  width => $width, 
-	  params => [$VISUALIZER_NONE] },
-	# mode 1
-	{ desc => ['PROGRESS_BAR'],
-	  bar => 1, secs => 0,  width => $width,
-	  params => [$VISUALIZER_NONE] },
-	# mode 2
-	{ desc => ['ELAPSED'],
-	  bar => 0, secs => 1,  width => $width,
-	  params => [$VISUALIZER_NONE] },
-	# mode 3
-	{ desc => ['ELAPSED', 'AND', 'PROGRESS_BAR'],
-	  bar => 1, secs => 1,  width => $width, 
-	  params => [$VISUALIZER_NONE] },
-	# mode 4
-	{ desc => ['REMAINING'],
-	  bar => 0, secs => -1, width => $width,
-	  params => [$VISUALIZER_NONE] },
-	# mode 5  
-    { desc => ['CLOCK'],
-	  bar => 0, secs => 0, width => $width, clock => 1,
-	  params => [$VISUALIZER_NONE] },
-	# mode 6	  
-	{ desc => ['SETUP_SHOWBUFFERFULLNESS'],
-	  bar => 0, secs => 0,  width => $width, fullness => 1,
-	  params => [$VISUALIZER_NONE] },
-	# mode 7
-	{ desc => ['VISUALIZER_VUMETER_SMALL'],
-	  bar => 0, secs => 0,  width => $width, _width => -20,
-	  # extra parameters (width, height, col (< 0 = from right), row (< 0 = from bottom), bars, left space)
-	  params => [$VISUALIZER_VUMETER, 20, 32, -20, 0, 2] },
-	# mode 8
-	{ desc => ['VISUALIZER_SPECTRUM_ANALYZER_SMALL'],
-	  bar => 0, secs => 0,  width => $width, _width => -32,
-	  # extra parameters (width, height, col (< 0 = from right), row (< 0 = from bottom), bars, left space)
-	  params => [$VISUALIZER_SPECTRUM_ANALYZER, 32, 32, -32, 0, 2, 6, $spectrum_scale] },	  
-	# mode 9	 
-	{ desc => ['VISUALIZER_VUMETER'],
-	  bar => 0, secs => 0,  width => $width,
-	  params => [$VISUALIZER_VUMETER] },
-	# mode 10
-	{ desc => ['VISUALIZER_SPECTRUM_ANALYZER'],
-	  bar => 0, secs => 0,  width => $width,
-	  # extra parameters (bars)
-	  params => [$VISUALIZER_SPECTRUM_ANALYZER, 16, $spectrum_scale] },	  
-	# mode 11	 
-	{ desc => ['VISUALIZER_VUMETER', 'AND', 'ELAPSED'],
-	  bar => 0, secs => 1,  width => $width,
-	  params => [$VISUALIZER_VUMETER] },
-	# mode 12
-	{ desc => ['VISUALIZER_SPECTRUM_ANALYZER', 'AND', 'ELAPSED'],
-	  bar => 0, secs => 1,  width => $width,
-	  # extra parameters (bars)
-	  params => [$VISUALIZER_SPECTRUM_ANALYZER, 16, $spectrum_scale] },	  
-	# mode 13	 
-	{ desc => ['VISUALIZER_VUMETER', 'AND', 'REMAINING'],
-	  bar => 0, secs => -1,  width => $width,
-	  params => [$VISUALIZER_VUMETER] },
-	# mode 14
-	{ desc => ['VISUALIZER_SPECTRUM_ANALYZER', 'AND', 'REMAINING'],
-	  bar => 0, secs => -1,  width => $width,
-	  # extra parameters (bars)
-	  params => [$VISUALIZER_SPECTRUM_ANALYZER, 16, $spectrum_scale] },	  	  
+sub new {
+	my $class = shift;
+	my $client = shift;
 	
-);
+	my $display = $class->SUPER::new($client);
+	my $cprefs = $prefs->client($client);
 	
+	$cprefs->init( { 
+		width => 128,
+		small_VU => 15,
+		spectrum =>	{	scale => 25,
+						small => { size => 25, band => 5.33 },
+						full  => { band => 8 },
+				},
+		}		
+	);				
+		
+	$display->init_accessor(	
+		modes => $display->build_modes,
+		vfdmodel => 'graphic-<width>x32',	# doesn't matter much
+	);	
+	
+	return $display;
+}
+
+=comment
 sub modes {
 	return \@modes;
 }
+=cut

 sub nmodes {
-	return $#modes;
+	return scalar($#{shift->modes()});
 }

 sub displayWidth {
@@ -116,12 +77,6 @@ sub displayWidth {
 	}	
 }

-# I don't think LMS renderer handles properly screens other than 32 pixels. It
-# seems that all we get is a 32 pixel-tall data with anything else padded to 0
-# i.e. if we try 64 pixels height, bytes 0..3 and 4..7 will contains the same 
-# pattern than the 32 pixels version, where one would have expected bytes 4..7
-# to be empty
-
 sub brightnessMap {
 	return (65535, 10, 50, 100, 200);
 }
@@ -132,12 +87,92 @@ sub bytesPerColumn {
 }
 =cut

+# I don't think LMS renderer handles properly screens other than 32 pixels. It
+# seems that all we get is a 32 pixel-tall data with anything else padded to 0
+# i.e. if we try 64 pixels height, bytes 0..3 and 4..7 will contains the same 
+# pattern than the 32 pixels version, where one would have expected bytes 4..7
+# to be empty
 sub displayHeight {
 	return 32;
 }

-sub vfdmodel {
-	return 'graphic-'.$width.'x32';
+sub build_modes {
+	my $client = shift->client;
+	my $cprefs = $prefs->client($client);
+	
+	my $width = shift || $cprefs->get('width') || 128;
+	my $small_VU = $cprefs->get('small_VU');
+	my $spectrum = $cprefs->get('spectrum');
+	
+	my @modes = (
+		# mode 0
+		{ desc => ['BLANK'],
+		bar => 0, secs => 0,  width => $width, 
+		params => [$VISUALIZER_NONE] },
+		# mode 1
+		{ desc => ['PROGRESS_BAR'],
+		bar => 1, secs => 0,  width => $width,
+		params => [$VISUALIZER_NONE] },
+		# mode 2
+		{ desc => ['ELAPSED'],
+		bar => 0, secs => 1,  width => $width,
+		params => [$VISUALIZER_NONE] },
+		# mode 3
+		{ desc => ['ELAPSED', 'AND', 'PROGRESS_BAR'],
+		bar => 1, secs => 1,  width => $width, 
+		params => [$VISUALIZER_NONE] },
+		# mode 4
+		{ desc => ['REMAINING'],
+		bar => 0, secs => -1, width => $width,
+		params => [$VISUALIZER_NONE] },
+		# mode 5  
+		{ desc => ['CLOCK'],
+		bar => 0, secs => 0, width => $width, clock => 1,
+		params => [$VISUALIZER_NONE] },
+		# mode 6	  
+		{ desc => ['SETUP_SHOWBUFFERFULLNESS'],
+		bar => 0, secs => 0,  width => $width, fullness => 1,
+		params => [$VISUALIZER_NONE] },
+		# mode 7
+		{ desc => ['VISUALIZER_VUMETER_SMALL'],
+		bar => 0, secs => 0,  width => $width, _width => int -($small_VU*$width/100),
+		# extra parameters (width, height, col (< 0 = from right), row (< 0 = from bottom), left_space)
+		params => [$VISUALIZER_VUMETER, int ($small_VU*$width/100), 32, int -($small_VU*$width/100), 0, 2] },
+		# mode 8
+		{ desc => ['VISUALIZER_SPECTRUM_ANALYZER_SMALL'],
+		bar => 0, secs => 0,  width => $width, _width => int -($spectrum->{small}->{size}*$width/100),
+		# extra parameters (width, height, col (< 0 = from right), row (< 0 = from bottom), left_space, bars)
+		params => [$VISUALIZER_SPECTRUM_ANALYZER, int ($spectrum->{small}->{size}*$width/100), 32, int -($spectrum->{small}->{size}*$width/100), 0, 2, int ($spectrum->{small}->{size}/100*$width/$spectrum->{small}->{band}), $spectrum->{scale}] },  
+		# mode 9	 
+		{ desc => ['VISUALIZER_VUMETER'],
+		bar => 0, secs => 0,  width => $width,
+		params => [$VISUALIZER_VUMETER] },
+		# mode 10
+		{ desc => ['VISUALIZER_SPECTRUM_ANALYZER'],
+		bar => 0, secs => 0,  width => $width,
+		# extra parameters (bars)
+		params => [$VISUALIZER_SPECTRUM_ANALYZER, int ($width/$spectrum->{full}->{band}), $spectrum->{scale}] },	  
+		# mode 11	 
+		{ desc => ['VISUALIZER_VUMETER', 'AND', 'ELAPSED'],
+		bar => 0, secs => 1,  width => $width,
+		params => [$VISUALIZER_VUMETER] },
+		# mode 12
+		{ desc => ['VISUALIZER_SPECTRUM_ANALYZER', 'AND', 'ELAPSED'],
+		bar => 0, secs => 1,  width => $width,
+		# extra parameters (bars)
+		params => [$VISUALIZER_SPECTRUM_ANALYZER, int ($width/$spectrum->{full}->{band}), $spectrum->{scale}] },	  
+		# mode 13	 
+		{ desc => ['VISUALIZER_VUMETER', 'AND', 'REMAINING'],
+		bar => 0, secs => -1,  width => $width,
+		params => [$VISUALIZER_VUMETER] },
+		# mode 14
+		{ desc => ['VISUALIZER_SPECTRUM_ANALYZER', 'AND', 'REMAINING'],
+		bar => 0, secs => -1,  width => $width,
+		# extra parameters (bars)
+		params => [$VISUALIZER_SPECTRUM_ANALYZER, int ($width/$spectrum->{full}->{band}), $spectrum->{scale}] },	
+	);
+	
+	return \@modes;
 }	

 1;
--- a/plugin/SqueezeESP32/HTML/EN/plugins/SqueezeESP32/settings/player.html
+++ b/plugin/SqueezeESP32/HTML/EN/plugins/SqueezeESP32/settings/player.html
@@ -0,0 +1,28 @@
+[% PROCESS settings/header.html %]
+
+	[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_WIDTH" desc="PLUGIN_SQUEEZEESP32_WIDTH_DESC" %]
+		<!--<input type="text" readonly class="stdedit" name="pref_width" id="width" value="[% prefs.pref_width %]" size="3">-->
+		[% prefs.pref_width %]
+	[% END %]
+	
+	[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_SMALL_VU" desc="PLUGIN_SQUEEZEESP32_SMALL_VU_DESC" %]
+		<input type="number" min="10" max= "50" step="5"class="stdedit" name="pref_small_VU" id="small_VU" value="[% prefs.pref_small_VU %]" size="3">
+	[% END %]
+	
+	[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_SPECTRUM_SCALE" desc="PLUGIN_SQUEEZEESP32_SPECTRUM_SCALE_DESC" %]
+		<input type="number" min="10" max= "50" step="5" class="stdedit" name="pref_spectrum_scale" id="spectrum_scale" value="[% prefs.pref_spectrum.scale %]" size="3">
+	[% END %]
+	
+	[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM" desc="PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_DESC" %]
+		[% "PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_SIZE" | string %]&nbsp
+		<input type="number" min="10" max= "50" step="5"class="stdedit" name="pref_spectrum_small_size" id="spectrum_small_size" value="[% prefs.pref_spectrum.small.size %]" size="3">
+		[% "PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_BAND" | string %]&nbsp
+		<input type="text" class="stdedit" name="pref_spectrum_small_band" id="spectrum_small_band" value="[% prefs.pref_spectrum.small.band %]" size="3">
+	[% END %]
+	
+	[% WRAPPER setting title="PLUGIN_SQUEEZEESP32_FULL_SPECTRUM_BAND" desc="PLUGIN_SQUEEZEESP32_FULL_SPECTRUM_BAND_DESC" %]
+		<input type="text" class="stdedit" name="pref_spectrum_full_band" id="spectrum_full_band" value="[% prefs.pref_spectrum.full.band %]" size="3">
+	[% END %]
+	
+
+[% PROCESS settings/footer.html %]
--- a/plugin/SqueezeESP32/Player.pm
+++ b/plugin/SqueezeESP32/Player.pm
@@ -23,8 +23,10 @@ sub playerSettingsFrame {
 		        
 	# New SETD command 0xfe for display width
 	if ($id == 0xfe) { 
-		$value = (unpack('CC', $$data_ref))[1];
+		$value = (unpack('Cn', $$data_ref))[1];
 		if ($value > 100 && $value < 400) {
+			$prefs->client($client)->set('width', $value);
+			$client->display->modes($client->display->build_modes($value));
 			$client->display->widthOverride(1, $value);
 			$client->update;
 		} 
--- a/plugin/SqueezeESP32/PlayerSettings.pm
+++ b/plugin/SqueezeESP32/PlayerSettings.pm
@@ -0,0 +1,66 @@
+package Plugins::SqueezeESP32::PlayerSettings;
+
+use strict;
+use base qw(Slim::Web::Settings);
+use List::Util qw(first);
+
+use Slim::Utils::Log;
+use Slim::Utils::Prefs;
+
+my $sprefs = preferences('server');
+my $prefs = preferences('plugin.squeezeesp32');
+my $log   = logger('plugin.squeezeesp32');
+
+sub name {
+	return Slim::Web::HTTP::CSRF->protectName('PLUGIN_SQUEEZEESP32_PLAYERSETTINGS');
+}
+
+sub needsClient {
+	return 1;
+}
+
+sub validFor {
+	my ($class, $client) = @_;
+	return $client->model eq 'squeezeesp32';
+}
+
+sub page {
+	return Slim::Web::HTTP::CSRF->protectURI('plugins/SqueezeESP32/settings/player.html');
+}
+
+sub prefs {
+	my ($class, $client) = @_;
+	my @prefs = qw(width small_VU spectrum);
+	return ($prefs->client($client), @prefs);
+}
+
+sub handler {
+	my ($class, $client, $paramRef) = @_;
+	
+	my ($cprefs, @prefs) = $class->prefs($client);
+	
+	if ($paramRef->{'saveSettings'}) {
+		$cprefs->set('small_VU', $paramRef->{'pref_small_VU'});
+		my $spectrum =	{	scale => $paramRef->{'pref_spectrum_scale'},
+							small => { 	size => $paramRef->{'pref_spectrum_small_size'}, 
+										band => $paramRef->{'pref_spectrum_small_band'} },
+							full  => { 	band => $paramRef->{'pref_spectrum_full_band'} },
+				};
+		$cprefs->set('spectrum', $spectrum);
+		$client->display->modes($client->display->build_modes);
+		$client->display->update;
+	}
+	
+	# as there is nothing captured, we need to re-set these variables
+	$paramRef->{'pref_width'} = $cprefs->get('width');
+	
+	# here I don't know why you need to set again spectrum which is a reference
+	# to a hash. Using $paramRef->{prefs} does not work either. It seems that 
+	# soem are copies of value, some are references, can't figure out.This whole
+	# logic of "Settings" is beyond me and I really hate it
+	$paramRef->{'pref_spectrum'} = $cprefs->get('spectrum');
+	
+	return $class->SUPER::handler($client, $paramRef);
+}
+
+1;
--- a/plugin/SqueezeESP32/Plugin.pm
+++ b/plugin/SqueezeESP32/Plugin.pm
@@ -8,11 +8,6 @@ use Slim::Utils::Log;

 my $prefs = preferences('plugin.squeezeesp32');

-$prefs->init({ 
-	width => 128, 
-	spectrum_scale => 50,
-});
-
 my $log = Slim::Utils::Log->addLogCategory({
 	'category'     => 'plugin.squeezeesp32',
 	'defaultLevel' => 'INFO',
@@ -23,8 +18,11 @@ sub initPlugin {
 	my $class = shift;
 	
 	if ( main::WEBUI ) {
-		require Plugins::SqueezeESP32::Settings;
-		Plugins::SqueezeESP32::Settings->new;
+		require Plugins::SqueezeESP32::PlayerSettings;
+		Plugins::SqueezeESP32::PlayerSettings->new;
+		
+		# require Plugins::SqueezeESP32::Settings;
+		# Plugins::SqueezeESP32::Settings->new;
 	}
 	
 	$class->SUPER::initPlugin(@_);
--- a/plugin/SqueezeESP32/install.xml
+++ b/plugin/SqueezeESP32/install.xml
@@ -10,6 +10,6 @@
  <name>PLUGIN_SQUEEZEESP32</name>
  <description>PLUGIN_SQUEEZEESP32_DESC</description>
  <module>Plugins::SqueezeESP32::Plugin</module>
-    <version>0.12</version>
+    <version>0.31</version>
  <creator>Philippe</creator>
 </extensions>
--- a/plugin/SqueezeESP32/strings.txt
+++ b/plugin/SqueezeESP32/strings.txt
@@ -13,13 +13,43 @@ PLUGIN_SQUEEZEESP32_BANNER_TEXT
 PLUGIN_SQUEEZEESP32_DESC
 	EN	Adds a new player id (100) to enable display with SqueezeESP32
 	
+PLUGIN_SQUEEZEESP32_PLAYERSETTINGS
+	EN	Display (ESP32)
+	
 PLUGIN_SQUEEZEESP32_WIDTH
 	EN	Screen width

+PLUGIN_SQUEEZEESP32_WIDTH_DESC
+	EN	Width of the display in pixel as reported by the player
+	
+PLUGIN_SQUEEZEESP32_SMALL_VU
+	EN	Small VU size
+	
+PLUGIN_SQUEEZEESP32_SMALL_VU_DESC
+	EN	% of the display used for small VU (right-justified)
+	
 PLUGIN_SQUEEZEESP32_SPECTRUM_SCALE
-	EN	Spectrum scale
+	EN	Spectrum scaling
 	
 PLUGIN_SQUEEZEESP32_SPECTRUM_SCALE_DESC
-	EN	Sets the scale factor % of spectrum visualizer by halves for better representation. 
-	EN	For example, 50 means that 50% of spectrum is displayed in 1/2 of the screen, so it's linear...
+	EN	% of Spectrum displayed in first half of the screen. For example, 50 means that 50% of spectrum is displayed in 1/2 of the screen
 	EN	But 25 means that only 25% of spectrum is displayed in 1/2 of the screen, so it's a sort of log
+	
+PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM
+	EN	Small spectrum options
+	
+PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_DESC
+	EN	<i>Size</i>: % of the screen used by small spectrum
+	EN	<br><i>Band factor</i>: number of bands is the width of the <b>spectrum</b> screen  divided by this factor
+	
+PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_SIZE
+	EN	Size
+	
+PLUGIN_SQUEEZEESP32_SMALL_SPECTRUM_BAND
+	EN	Band factor
+	
+PLUGIN_SQUEEZEESP32_FULL_SPECTRUM_BAND
+	EN	Full spectrum band factor
+		
+PLUGIN_SQUEEZEESP32_FULL_SPECTRUM_BAND_DESC
+	EN	The number of bands is the width of the screen divided by this factor
--- a/plugin/repo.xml
+++ b/plugin/repo.xml
@@ -1,10 +1,10 @@
 <?xml version='1.0' standalone='yes'?>
 <extensions>
  <plugins>
-    <plugin version="0.12" name="SqueezeESP32" minTarget="7.5" maxTarget="*">
+    <plugin version="0.31" name="SqueezeESP32" minTarget="7.5" maxTarget="*">
      <link>https://github.com/sle118/squeezelite-esp32</link>
      <creator>Philippe</creator>
-      <sha>3e60650efdff28cd0da9a7e9d0ddccf3a68d350d</sha>
+      <sha>6dc35a0f9f9b287d205f7532cbb642b08407a284</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>