From 8b16b13ad2d14368b332c7ba5ad2cb6a7031581d Mon Sep 17 00:00:00 2001
From: Ahmet Inan <xdsopl@googlemail.com>
Date: Fri, 16 Jan 2015 18:47:57 +0100
Subject: [PATCH] added menu items to increase / decrease update rate

default update rate is 2 updates per second
---
 app/src/main/java/xdsopl/robot36/Decoder.java      | 6 +++++-
 app/src/main/java/xdsopl/robot36/MainActivity.java | 6 ++++++
 app/src/main/res/menu/menu_main.xml                | 4 ++++
 app/src/main/res/values/strings.xml                | 2 ++
 4 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/xdsopl/robot36/Decoder.java b/app/src/main/java/xdsopl/robot36/Decoder.java
index 05e93f9..a8b4dcc 100644
--- a/app/src/main/java/xdsopl/robot36/Decoder.java
+++ b/app/src/main/java/xdsopl/robot36/Decoder.java
@@ -46,6 +46,7 @@ public class Decoder {
     private final int[] savedWidth;
     private final int[] savedHeight;
     private final float[] volume;
+    private int updateRate = 1;
 
     private final RenderScript rs;
     private final Allocation rsDecoderAudioBuffer;
@@ -165,6 +166,9 @@ public class Decoder {
     void scottieDX_mode() { rsDecoder.invoke_scottieDX_mode(); }
     void wrasseSC2_180_mode() { rsDecoder.invoke_wrasseSC2_180_mode(); }
 
+
+    void increaseUpdateRate() { updateRate = Math.min(4, updateRate + 1); }
+    void decreaseUpdateRate() { updateRate = Math.max(0, updateRate - 1); }
     void updateTitle(int id) { activity.updateTitle(activity.getString(id)); }
 
     void switch_mode(int mode)
@@ -245,7 +249,7 @@ public class Decoder {
     }
 
     void decode() {
-        int samples = audio.read(audioBuffer, 0, audioBuffer.length);
+        int samples = audio.read(audioBuffer, 0, audioBuffer.length >> updateRate);
         if (samples <= 0)
             return;
 
diff --git a/app/src/main/java/xdsopl/robot36/MainActivity.java b/app/src/main/java/xdsopl/robot36/MainActivity.java
index 5d87867..8c4ee58 100644
--- a/app/src/main/java/xdsopl/robot36/MainActivity.java
+++ b/app/src/main/java/xdsopl/robot36/MainActivity.java
@@ -199,6 +199,12 @@ public class MainActivity extends Activity {
                 decoder.enable_analyzer(enableAnalyzer ^= true);
                 changeLayoutOrientation(getResources().getConfiguration());
                 return true;
+            case R.id.action_increase_update_rate:
+                decoder.increaseUpdateRate();
+                return true;
+            case R.id.action_decrease_update_rate:
+                decoder.decreaseUpdateRate();
+                return true;
             case R.id.action_raw_mode:
                 decoder.raw_mode();
                 return true;
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
index a913342..4e8217f 100644
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@@ -20,6 +20,10 @@
         android:orderInCategory="100" android:showAsAction="never" />
     <item android:id="@+id/action_toggle_analyzer" android:title="@string/action_toggle_analyzer"
         android:orderInCategory="100" android:showAsAction="never" />
+    <item android:id="@+id/action_increase_update_rate" android:title="@string/action_increase_update_rate"
+        android:orderInCategory="100" android:showAsAction="never" />
+    <item android:id="@+id/action_decrease_update_rate" android:title="@string/action_decrease_update_rate"
+        android:orderInCategory="100" android:showAsAction="never" />
     <item android:id="@+id/action_raw_mode" android:title="@string/action_raw_mode"
         android:orderInCategory="100" android:showAsAction="never" />
     <item android:id="@+id/action_robot36_mode" android:title="@string/action_robot36_mode"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 23a9685..8ba3495 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -6,6 +6,8 @@
     <string name="action_toggle_auto">Toggle Auto Mode</string>
     <string name="action_toggle_debug">Toggle Debug Mode</string>
     <string name="action_toggle_analyzer">Toggle Analyzer</string>
+    <string name="action_increase_update_rate">Increase Update Rate</string>
+    <string name="action_decrease_update_rate">Decrease Update Rate</string>
     <string name="action_raw_mode">Raw Mode</string>
     <string name="action_robot36_mode">Robot36 Mode</string>
     <string name="action_robot72_mode">Robot72 Mode</string>