From a6a276ea5683135c14f842b32ce9c30e899f4465 Mon Sep 17 00:00:00 2001
From: Todd Poynor <toddpoynor@google.com>
Date: Wed, 7 Dec 2011 19:44:22 -0800
Subject: tuna: autobrightness: overhaul brightness table

Bump minimum from 16->19 since Prime ALS sensor reads minimum
for a wide range of low light levels.

Set second brightness bin just above minimum reading, to
minimize the range of light levels that use the lowest
brightness.

Recalculate ALS/brightness curve so can add more points
reasoably linearly (from Arve).

Add many more brightness bins, avoiding steep cliffs of
previous table.

Change-Id: I35be4e273d3379dc7db41657b6a968f32aa73a1f
Signed-off-by: Todd Poynor <toddpoynor@google.com>
---
 .../frameworks/base/core/res/res/values/config.xml | 48 +++++++++++++++++-----
 1 file changed, 38 insertions(+), 10 deletions(-)

(limited to 'overlay')

diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index e32862c..e6cfdae 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -65,11 +65,25 @@
 
          Must be overridden in platform specific overlays -->
     <integer-array name="config_autoBrightnessLevels">
-        <item>7</item>
-        <item>107</item>
-        <item>244</item>
-        <item>440</item>
-        <item>4080</item>
+        <item>6</item>
+	<item>9</item>
+	<item>14</item>
+	<item>20</item>
+	<item>30</item>
+	<item>46</item>
+	<item>68</item>
+        <item>103</item>
+	<item>154</item>
+        <item>231</item>
+	<item>346</item>
+	<item>519</item>
+	<item>778</item>
+	<item>1168</item>
+	<item>1752</item>
+	<item>2627</item>
+	<item>3941</item>
+        <item>5912</item>
+	<item>8867</item>
     </integer-array>
 
     <!-- Array of output values for LCD backlight corresponding to the LUX values
@@ -77,11 +91,25 @@
          than the size of the config_autoBrightnessLevels array.
     -->
     <integer-array name="config_autoBrightnessLcdBacklightValues">
-        <item>16</item>
-        <item>40</item>
-        <item>60</item>
-        <item>70</item>
-        <item>70</item>
+        <item>19</item>
+	<item>23</item>
+	<item>26</item>
+	<item>30</item>
+	<item>34</item>
+	<item>39</item>
+	<item>45</item>
+        <item>51</item>
+        <item>59</item>
+        <item>67</item>
+        <item>77</item>
+        <item>88</item>
+	<item>101</item>
+	<item>116</item>
+	<item>133</item>
+	<item>152</item>
+	<item>174</item>
+	<item>199</item>
+	<item>228</item>
         <item>250</item>
     </integer-array>
 
-- 
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