From 10ea98f06142e62f67b13106c7f667e8de72d3a1 Mon Sep 17 00:00:00 2001
From: philippe44 <philippe_44@outlook.com>
Date: Sat, 18 Jan 2020 01:05:59 -0800
Subject: [PATCH] brightness

---
 components/display/display.c        |   2 ++
 components/display/driver_SSD1306.c |  20 +++++++++++++++++++-
 plugin/SqueezeESP32.zip             | Bin 4562 -> 4587 bytes
 plugin/SqueezeESP32/Graphics.pm     |   4 ++++
 plugin/SqueezeESP32/install.xml     |   2 +-
 plugin/repo.xml                     |   4 ++--
 6 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/components/display/display.c b/components/display/display.c
index 33bf0b40..4a9fed68 100644
--- a/components/display/display.c
+++ b/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;
 	}
diff --git a/components/display/driver_SSD1306.c b/components/display/driver_SSD1306.c
index f2405e98..aa2d7290 100644
--- a/components/display/driver_SSD1306.c
+++ b/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);
+	}
+}
+
+
 
diff --git a/plugin/SqueezeESP32.zip b/plugin/SqueezeESP32.zip
index ddffccc8ea0b4714f5387a3e70b62751c6c8ffc5..e8aba5c1fb8797149ee893e74d5c3651ee407a9c 100644
GIT binary patch
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diff --git a/plugin/SqueezeESP32/Graphics.pm b/plugin/SqueezeESP32/Graphics.pm
index e1a61f9e..bb890606 100644
--- a/plugin/SqueezeESP32/Graphics.pm
+++ b/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;
diff --git a/plugin/SqueezeESP32/install.xml b/plugin/SqueezeESP32/install.xml
index 544f5917..ca9cf22b 100644
--- 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>0.4</version>
+    <version>0.5</version>
   <creator>Philippe</creator>
 </extensions>
diff --git a/plugin/repo.xml b/plugin/repo.xml
index 9467e48f..6b784f47 100644
--- a/plugin/repo.xml
+++ b/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>