tequilaOS/platform_bootable_recovery
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recovery: Blank screen on init

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* 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
This commit is contained in:
Michael Bestas 2019-03-23 17:28:22 +02:00 committed by zlewchan
parent 0e844b0289
commit 36c90b36d3
2 changed files with 10 additions and 0 deletions
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3
recovery_ui/include/recovery_ui/screen_ui.h
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@ -262,6 +262,9 @@ class ScreenRecoveryUI : public RecoveryUI, public DrawInterface {
// The scale factor from dp to pixels. 1.0 for mdpi, 4.0 for xxxhdpi.
const float density_;
// Whether we should blank and unblank screen on init to workaround device specific issues
bool blank_unblank_on_init_;
virtual bool InitTextParams();
virtual bool LoadWipeDataMenuText();

7
recovery_ui/screen_ui.cpp
View file

@ -319,6 +319,8 @@ ScreenRecoveryUI::ScreenRecoveryUI(bool scrollable_menu)
animation_fps_(
android::base::GetIntProperty("ro.recovery.ui.animation_fps", kDefaultAnimationFps)),
density_(static_cast<float>(android::base::GetIntProperty("ro.sf.lcd_density", 160)) / 160.f),
blank_unblank_on_init_(
android::base::GetBoolProperty("ro.recovery.ui.blank_unblank_on_init", false)),
current_icon_(NONE),
current_frame_(0),
intro_done_(false),
@ -918,6 +920,11 @@ bool ScreenRecoveryUI::Init(const std::string& locale) {
return false;
}
if (blank_unblank_on_init_) {
gr_fb_blank(true);
gr_fb_blank(false);
}
// Are we portrait or landscape?
layout_ = (gr_fb_width() > gr_fb_height()) ? LANDSCAPE : PORTRAIT;
// Are we the large variant of our base layout?