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Commit e9439620 authored Mar 23, 2019 by Michael Bestas

recovery: Blank screen on init

* Fixes touch on some devices like chiron/sagit

* Some other devices (e.g. most MTK) need this because their kernel driver
  implementations do not perform as expected (initial unblank is only
  happening when altering the panel brightness x -> 0 -> y). In regular
  Android, that "unblanking" is done on boot when the lights HAL loads and
  sets the initial brightness.

Change-Id: I2fffac508d09d07355a7a7f087805b0dceb5f97e

parent 4a2e25b9

Android.mk

+4 −0

Original line number	Diff line number	Diff line
		@@ -158,6 +158,10 @@ else
		LOCAL_CFLAGS += -DRECOVERY_UI_VR_STEREO_OFFSET=0
		endif

		ifeq ($(TARGET_RECOVERY_UI_BLANK_UNBLANK_ON_INIT),true)
		LOCAL_CFLAGS += -DRECOVERY_UI_BLANK_UNBLANK_ON_INIT
		endif

		ifneq ($(TARGET_RECOVERY_BACKLIGHT_PATH),)
		LOCAL_CFLAGS += -DBACKLIGHT_PATH=\"$(TARGET_RECOVERY_BACKLIGHT_PATH)\"
		else

screen_ui.cpp

+5 −0

Original line number	Diff line number	Diff line
		@@ -800,6 +800,11 @@ bool ScreenRecoveryUI::Init(const std::string& locale) {
		return false;
		}

		#ifdef RECOVERY_UI_BLANK_UNBLANK_ON_INIT
		gr_fb_blank(true);
		gr_fb_blank(false);
		#endif

		// Are we portrait or landscape?
		layout_ = (gr_fb_width() > gr_fb_height()) ? LANDSCAPE : PORTRAIT;
		// Are we the large variant of our base layout?