brightness

components/display/display.c

@@ -106,6 +106,8 @@ static bool display_handler(u8_t *data, int len){
 		handle->vfdc_handler(data, len);
 	} else if (!strncmp((char*) data, "grfe", 4)) {
 		handle->grfe_handler(data, len);
+	} else if (!strncmp((char*) data, "grfb", 4)) {
+		handle->grfb_handler(data, len);
 	} else {
 		res = false;
 	}

components/display/driver_SSD1306.c

@@ -36,6 +36,7 @@ static const char *TAG = "display";
 
 static void 	vfdc_handler( u8_t *_data, int bytes_read);
 static void 	grfe_handler( u8_t *data, int len);
+static void 	grfb_handler( u8_t *data, int len);
 static bool 	display_init(char *config, char *welcome);
 static void 	print_message(char *msg);
 
@@ -44,6 +45,7 @@ struct display_handle_s SSD1306_handle = {
 	print_message, 
 	vfdc_handler,
 	grfe_handler,
+	grfb_handler,
 	NULL, NULL,
 };
 
@@ -243,7 +245,7 @@ static void vfdc_handler( u8_t *_data, int bytes_read) {
 /****************************************************************************************
  * Process graphic display data
  */
-void grfe_handler( u8_t *data, int len) {
+static void grfe_handler( u8_t *data, int len) {
 	data += 8;
 	len -= 8;
 	
@@ -293,4 +295,20 @@ void grfe_handler( u8_t *data, int len) {
  #endif	
 }
 
+/****************************************************************************************
+ * Process graphic display data
+ */
+static void grfb_handler(u8_t *data, int len) {
+	s16_t brightness = htons(*(uint16_t*) (data + 4));
+	
+	ESP_LOGI(TAG, "brightness %hx", brightness);
+	if (brightness < 0) {
+		SSD1306_DisplayOff( &Display ); 
+	} else {
+		SSD1306_DisplayOn( &Display ); 
+		SSD1306_SetContrast( &Display, brightness * 256 / 4  - 1);
+	}
+}
+
+
 

plugin/SqueezeESP32/Graphics.pm

@@ -57,6 +57,10 @@ sub nmodes {
 # pattern than the 32 pixels version, where one would have expected bytes 4..7
 # to be empty
 
+sub brightnessMap {
+	return (65535, 1, 2, 3, 4);
+}
+
 =comment
 sub bytesPerColumn {
 	return 4;

plugin/SqueezeESP32/install.xml

@@ -10,6 +10,6 @@
   <name>PLUGIN_SQUEEZEESP32</name>
   <description>PLUGIN_SQUEEZEESP32_DESC</description>
   <module>Plugins::SqueezeESP32::Plugin</module>
-    <version>0.4</version>
+    <version>0.5</version>
   <creator>Philippe</creator>
 </extensions>

plugin/repo.xml

@@ -1,10 +1,10 @@
 <?xml version='1.0' standalone='yes'?>
 <extensions>
   <plugins>
-    <plugin version="0.4" name="SqueezeESP32" minTarget="7.9" maxTarget="7.*">
+    <plugin version="0.5" name="SqueezeESP32" minTarget="7.9" maxTarget="7.*">
       <link>https://github.com/sle118/squeezelite-esp32</link>
       <creator>Philippe</creator>
-      <sha>cec20d0489ed120d56ea2de836c616c7d970c0d5</sha>
+      <sha>479c0a88d9c3b645abd98a6b8075f33e048ce4ce</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>