fix(high contrast text): fix grey text sometimes getting lighter when it should get darker and vice-versa
Use perceptual luminance instead of RGB heuristic to decide to lighten
or darken.
Bug: 186567103
Test: manual
1. adb shell setenforce 0 && adb shell setprop persist.device_config.aconfig_flags.accessibility.com.android.graphics.hwui.flags.high_contrast_text_luminance true && adb shell stop && adb shell start
Change-Id: Ief7ae6c10e1043694ffc10b1d827ebeaada61131
diff --git a/libs/hwui/aconfig/hwui_flags.aconfig b/libs/hwui/aconfig/hwui_flags.aconfig
index ca11975..c156c46 100644
--- a/libs/hwui/aconfig/hwui_flags.aconfig
+++ b/libs/hwui/aconfig/hwui_flags.aconfig
@@ -15,6 +15,13 @@
}
flag {
+ name: "high_contrast_text_luminance"
+ namespace: "accessibility"
+ description: "Use luminance to determine how to make text more high contrast, instead of RGB heuristic"
+ bug: "186567103"
+}
+
+flag {
name: "hdr_10bit_plus"
namespace: "core_graphics"
description: "Use 10101010 and FP16 formats for HDR-UI when available"