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E-Ink Screensaver (#3477)

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* fix Wireless Paper double-clear screen at boot

* log when flooded with "responsive" frames

* show the "resuming" screen when waking from deep-sleep

* rename drawDeepSleepScreen
avoid future confusion with "Screen Paused" screen

* show a screensaver frame when screen off
The frame shown during deep sleep is now also passed through showScreensaverFrames()

* Add macros for E-Ink color values.
OLEDDISPLAY_COLOR is inverted. Result of light-mode on E-Ink vs dark-mode on OLED?

* adapt drawDeepSleepScreen to new screensaver convention

* Mark Wireless Paper V1.1 as having problems with ghosting
Any other issues can be marked in a similar way, then handled in code where relevant

* Change screensaver from fullscreen logo to overlay

* identify "quirks" rather than "problems"

* move async refresh polling from display() to a NotifiedWorkerThread

* Prevent skipping of deep-sleep screen
(Hopefully)

* Redesign screensaver overlay
Now displays short name

* Optimize refresh for different displays

* Support older EInkDisplay class

* Don't assume text alignment

* fix spelling of a quirk macro
(No impact to code, but avoids future issues)

* Handle impossibly unlikely millis() overflow error
Should have just let it go, but here we are..

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
This commit is contained in:
todd-herbert
2024-03-29 12:31:11 +13:00
committed by GitHub
parent daa4d387c6
commit 8187fa7115
7 changed files with 204 additions and 43 deletions
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19
src/graphics/Screen.h
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@@ -73,6 +73,10 @@ class Screen
#define MILES_TO_FEET 5280
#endif
// Intuitive colors. E-Ink display is inverted from OLED(?)
#define EINK_BLACK OLEDDISPLAY_COLOR::WHITE
#define EINK_WHITE OLEDDISPLAY_COLOR::BLACK
namespace graphics
{
@@ -139,12 +143,12 @@ class Screen : public concurrency::OSThread
// Not thread safe - must be called before any other methods are called.
void setup();
/// Turns the screen on/off.
void setOn(bool on)
/// Turns the screen on/off. Optionally, pass a custom screensaver frame for E-Ink
void setOn(bool on, FrameCallback einkScreensaver = NULL)
{
if (!on)
handleSetOn(
false); // We handle off commands immediately, because they might be called because the CPU is shutting down
// We handle off commands immediately, because they might be called because the CPU is shutting down
handleSetOn(false, einkScreensaver);
else
enqueueCmd(ScreenCmd{.cmd = on ? Cmd::SET_ON : Cmd::SET_OFF});
}
@@ -321,6 +325,11 @@ class Screen : public concurrency::OSThread
void setWelcomeFrames();
#ifdef USE_EINK
/// Draw an image to remain on E-Ink display after screen off
void setScreensaverFrames(FrameCallback einkScreensaver = NULL);
#endif
protected:
/// Updates the UI.
//
@@ -351,7 +360,7 @@ class Screen : public concurrency::OSThread
}
// Implementations of various commands, called from doTask().
void handleSetOn(bool on);
void handleSetOn(bool on, FrameCallback einkScreensaver = NULL);
void handleOnPress();
void handleShowNextFrame();
void handleShowPrevFrame();