idfxx::epaper Namespace Reference

ePaper display driver classes. More...

Classes
class	gray4_framebuffer
	In-memory framebuffer for 4-level grayscale ePaper displays. More...
class	mono_framebuffer
	In-memory framebuffer for monochrome (1 bit per pixel) ePaper displays. More...
class	panel
	Abstract base class for ePaper display panels. More...
class	ssd1680
	SSD1680 ePaper display controller driver. More...
class	uc8179
	UC8179 ePaper display controller driver. More...

Enumerations
enum class	gray4 : uint8_t {   white = 0 ,   light = 1 ,   dark = 2 ,   black = 3 }
	A 4-level grayscale pixel value. More...
enum class	refresh_mode : uint8_t {   full ,   fast ,   partial }
	Refresh style for panel::refresh. More...
enum class	color_mode : uint8_t {   mono ,   gray4 }
	Pixel format the panel is operating in. More...

Detailed Description

ePaper display driver classes.

Enumeration Type Documentation

color_mode

enum class idfxx::epaper::color_mode : uint8_t

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Pixel format the panel is operating in.

Selected with panel::set_color_mode; determines which framebuffer type panel::write accepts.

Enumerator
mono	1 bit per pixel black-and-white (mono_framebuffer).
gray4	2 bits per pixel, 4 gray levels (gray4_framebuffer).

Definition at line 81 of file panel.hpp.

gray4

enum class idfxx::epaper::gray4 : uint8_t

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A 4-level grayscale pixel value.

The value type written by gray4_framebuffer::set_pixel. Levels run from white paper to full black ink; a value-initialized gray4{} is white, so generic drawing code that clears with a value-initialized pixel (e.g. idfxx::gfx::canvas::clear) clears ePaper surfaces to blank paper.

Enumerator
white	Blank paper (no ink).
light	Light gray.
dark	Dark gray.
black	Full black ink.

Definition at line 30 of file color.hpp.

refresh_mode

enum class idfxx::epaper::refresh_mode : uint8_t

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Refresh style for panel::refresh.

ePaper controllers offer several waveform families trading update speed and flicker against image quality and ghosting.

Enumerator
full	Full update with the controller's highest-quality waveform: the panel flashes through inverse images before settling. Slowest, but clears ghosting completely.
fast	Full-screen update with a shortened waveform: much faster than refresh_mode::full and still updates every pixel, at some cost in contrast and ghosting. Not supported by every driver.
partial	Differential update: only pixels that changed since the previous refresh flip, without the full-refresh flash. Fastest and flicker-free, but accumulates ghosting — issue a refresh_mode::full refresh periodically to clean the panel.

Definition at line 58 of file panel.hpp.