From 15255111b1e5868cb04b6e07b131ab8bcefeae81 Mon Sep 17 00:00:00 2001
From: Shirayuki39 <lorddemecrius83@proton.me>
Date: Thu, 5 Sep 2024 00:49:26 +0800
Subject: [PATCH] LG8n: overlay: Import Auto Brightness Configurations from
 Stock

Signed-off-by: Shirayuki39 <lorddemecrius83@proton.me>
---
 .../res/values/config.xml                     | 107 ++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 overlay/FrameworkResOverlayLG8n/res/values/config.xml

diff --git a/overlay/FrameworkResOverlayLG8n/res/values/config.xml b/overlay/FrameworkResOverlayLG8n/res/values/config.xml
new file mode 100644
index 0000000..138e114
--- /dev/null
+++ b/overlay/FrameworkResOverlayLG8n/res/values/config.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2024 Shirayuki39@FairDevicesFOSS
+     SPDX-License-Identifier: Apache-2.0
+-->
+<resources>
+    <!-- Flag indicating whether the we should enable the automatic brightness in Settings.
+         Software implementation will be used if config_hardware_auto_brightness_available is not set -->
+    <bool name="config_automatic_brightness_available">true</bool>
+
+    <!-- Array of desired screen brightness in nits corresponding to the lux values
+         in the config_autoBrightnessLevels array. The display brightness is defined as the measured
+         brightness of an all-white image.
+
+         If this is defined then:
+            - config_autoBrightnessLcdBacklightValues should not be defined
+            - config_screenBrightnessNits must be defined
+            - config_screenBrightnessBacklight must be defined
+
+         This array should have size one greater than the size of the config_autoBrightnessLevels
+         array. The brightness values must be non-negative and non-decreasing. This must be
+         overridden in platform specific overlays -->
+    <integer-array name="config_autoBrightnessLcdBacklightValues">
+        <item>8</item>
+        <item>64</item>
+        <item>98</item>
+        <item>104</item>
+        <item>110</item>
+        <item>116</item>
+        <item>122</item>
+        <item>128</item>
+        <item>134</item>
+        <item>182</item>
+        <item>255</item>
+        <item>255</item>
+        <item>255</item>
+        <item>255</item>
+        <item>255</item>
+        <item>255</item>
+        <item>255</item>
+        <item>255</item>
+    </integer-array>
+
+    <!-- Array of light sensor lux values to define our levels for auto backlight brightness
+    support.
+         The N entries of this array define N + 1 control points as follows:
+         (1-based arrays)
+
+         Point 1:            (0, value[1]):             lux <= 0
+         Point 2:     (level[1], value[2]):  0        < lux <= level[1]
+         Point 3:     (level[2], value[3]):  level[2] < lux <= level[3]
+         ...
+         Point N+1: (level[N], value[N+1]):  level[N] < lux
+
+         The control points must be strictly increasing.  Each control point
+         corresponds to an entry in the brightness backlight values arrays.
+         For example, if lux == level[1] (first element of the levels array)
+         then the brightness will be determined by value[2] (second element
+         of the brightness values array).
+
+         Spline interpolation is used to determine the auto-brightness
+         backlight values for lux levels between these control points.
+
+         Must be overridden in platform specific overlays -->
+    <integer-array name="config_autoBrightnessLevels">
+         <item>128</item>
+         <item>256</item>
+         <item>384</item>
+         <item>512</item>
+         <item>640</item>
+         <item>768</item>
+         <item>896</item>
+         <item>1024</item>
+         <item>2048</item>
+         <item>4096</item>
+         <item>6144</item>
+         <item>8192</item>
+         <item>10240</item>
+         <item>12288</item>
+         <item>14336</item>
+         <item>16384</item>
+         <item>18432</item>
+    </integer-array>
+
+    <!-- Minimum screen brightness setting allowed by power manager.
+         The user is forbidden from setting the brightness below this level.  -->
+    <item type="dimen" name="config_screenBrightnessSettingMinimumFloat">0.003921569</item>
+
+    <!-- Maximum screen brightness allowed by the power manager.
+         The user is forbidden from setting the brightness above this level. -->
+    <item name="config_screenBrightnessSettingMaximumFloat" format="float" type="dimen">1.0</item>
+
+    <!-- Default screen brightness setting
+         Must be in the range specified by minimum and maximum. -->
+    <item name="config_screenBrightnessSettingDefaultFloat" format="float" type="dimen">0.4</item>
+
+    <!-- Stability requirements in milliseconds for accepting a new brightness level.  This is used
+         for debouncing the light sensor.  Different constants are used to debounce the light sensor
+         when adapting to brighter or darker environments.  This parameter controls how quickly
+         brightness changes occur in response to an observed change in light level that exceeds the
+         hysteresis threshold. -->
+    <integer name="config_autoBrightnessBrighteningLightDebounce">2000</integer>
+    <integer name="config_autoBrightnessDarkeningLightDebounce">3000</integer>
+
+    <!-- Light sensor event rate in milliseconds for automatic brightness control. -->
+    <integer name="config_autoBrightnessLightSensorRate">250</integer>
+</resources>