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// Display Library for SPI e-paper panels from Dalian Good Display and boards from Waveshare.
// Requires HW SPI and Adafruit_GFX. Caution: these e-papers require 3.3V supply AND data lines!
//
// based on Demo Example from Good Display: http://www.e-paper-display.com/download_list/downloadcategoryid=34&isMode=false.html
//
// Author: Jean-Marc Zingg
//
// Version: see library.properties
//
// Library: https://github.com/ZinggJM/GxEPD2
#ifndef _GxEPD2_BW_H_
#define _GxEPD2_BW_H_
// uncomment next line to use class GFX of library GFX_Root instead of Adafruit_GFX
//#include <GFX.h>
#ifndef ENABLE_GxEPD2_GFX
// default is off
#define ENABLE_GxEPD2_GFX 0
#endif
#if ENABLE_GxEPD2_GFX
#include "../../libraries/GxEPD2/src/GxEPD2_GFX.h" // GuruSR: Changed for setDarkBorder
#define GxEPD2_GFX_BASE_CLASS GxEPD2_GFX
#elif defined(_GFX_H_)
#define GxEPD2_GFX_BASE_CLASS GFX
#else
#include <Adafruit_GFX.h>
#define GxEPD2_GFX_BASE_CLASS Adafruit_GFX
#endif
#include "../../libraries/GxEPD2/src/GxEPD2_EPD.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_102.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_154.h" // GuruSR: Changed for setDarkBorder
#include "GxEPD2_154_D67-B.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_154_T8.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_154_M09.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_154_M10.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213_B72.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213_B73.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213_B74.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213_flex.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213_M21.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_213_T5D.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_260.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_260_M01.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_290.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_290_T5.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_290_T5D.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_290_M06.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_290_T94.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_290_T94_V2.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_270.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_371.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_420.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_420_M01.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_583.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_583_T8.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_750.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_750_T7.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_1160_T91.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/epd/GxEPD2_1248.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/it8951/GxEPD2_it60.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/it8951/GxEPD2_it60_1448x1072.h" // GuruSR: Changed for setDarkBorder
#include "../../libraries/GxEPD2/src/it8951/GxEPD2_it78_1872x1404.h" // GuruSR: Changed for setDarkBorder
template<typename GxEPD2_Type, const uint16_t page_height>
class GxEPD2_BW : public GxEPD2_GFX_BASE_CLASS
{
public:
GxEPD2_Type epd2;
#if ENABLE_GxEPD2_GFX
GxEPD2_BW(GxEPD2_Type epd2_instance) : GxEPD2_GFX_BASE_CLASS(epd2, GxEPD2_Type::WIDTH, GxEPD2_Type::HEIGHT), epd2(epd2_instance)
#else
GxEPD2_BW(GxEPD2_Type epd2_instance) : GxEPD2_GFX_BASE_CLASS(GxEPD2_Type::WIDTH, GxEPD2_Type::HEIGHT), epd2(epd2_instance)
#endif
{
_page_height = page_height;
_pages = (HEIGHT / _page_height) + ((HEIGHT % _page_height) > 0);
_reverse = (epd2_instance.panel == GxEPD2::GDE0213B1);
_mirror = false;
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
uint16_t pages()
{
return _pages;
}
uint16_t pageHeight()
{
return _page_height;
}
bool mirror(bool m)
{
_swap_ (_mirror, m);
return m;
}
void drawPixel(int16_t x, int16_t y, uint16_t color)
{
if ((x < 0) || (x >= width()) || (y < 0) || (y >= height())) return;
if (_mirror) x = width() - x - 1;
// check rotation, move pixel around if necessary
switch (getRotation())
{
case 1:
_swap_(x, y);
x = WIDTH - x - 1;
break;
case 2:
x = WIDTH - x - 1;
y = HEIGHT - y - 1;
break;
case 3:
_swap_(x, y);
y = HEIGHT - y - 1;
break;
}
// transpose partial window to 0,0
x -= _pw_x;
y -= _pw_y;
// clip to (partial) window
if ((x < 0) || (x >= _pw_w) || (y < 0) || (y >= _pw_h)) return;
// adjust for current page
y -= _current_page * _page_height;
if (_reverse) y = _page_height - y - 1;
// check if in current page
if ((y < 0) || (y >= _page_height)) return;
uint16_t i = x / 8 + y * (_pw_w / 8);
if (color)
_buffer[i] = (_buffer[i] | (1 << (7 - x % 8)));
else
_buffer[i] = (_buffer[i] & (0xFF ^ (1 << (7 - x % 8))));
}
void init(uint32_t serial_diag_bitrate = 0) // = 0 : disabled
{
epd2.init(serial_diag_bitrate);
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
// init method with additional parameters:
// initial false for re-init after processor deep sleep wake up, if display power supply was kept
// this can be used to avoid the repeated initial full refresh on displays with fast partial update
// NOTE: garbage will result on fast partial update displays, if initial full update is omitted after power loss
// reset_duration = 20 is default; a value of 2 may help with "clever" reset circuit of newer boards from Waveshare
// pulldown_rst_mode true for alternate RST handling to avoid feeding 5V through RST pin
void init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration = 20, bool pulldown_rst_mode = false)
{
epd2.init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
_using_partial_mode = false;
_current_page = 0;
setFullWindow();
}
void fillScreen(uint16_t color) // 0x0 black, >0x0 white, to buffer
{
uint8_t data = (color == GxEPD_BLACK) ? 0x00 : 0xFF;
for (uint16_t x = 0; x < sizeof(_buffer); x++)
{
_buffer[x] = data;
}
}
// display buffer content to screen, useful for full screen buffer
void display(bool partial_update_mode = false)
{
if (partial_update_mode) epd2.writeImage(_buffer, 0, 0, WIDTH, _page_height);
else epd2.writeImageForFullRefresh(_buffer, 0, 0, WIDTH, _page_height);
epd2.refresh(partial_update_mode);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, 0, 0, WIDTH, _page_height);
}
if (!partial_update_mode) epd2.powerOff();
}
// display part of buffer content to screen, useful for full screen buffer
// displayWindow, use parameters according to actual rotation.
// x and w should be multiple of 8, for rotation 0 or 2,
// y and h should be multiple of 8, for rotation 1 or 3,
// else window is increased as needed,
// this is an addressing limitation of the e-paper controllers
void displayWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
x = gx_uint16_min(x, width());
y = gx_uint16_min(y, height());
w = gx_uint16_min(w, width() - x);
h = gx_uint16_min(h, height() - y);
_rotate(x, y, w, h);
uint16_t y_part = _reverse ? HEIGHT - h - y : y;
epd2.writeImagePart(_buffer, x, y_part, WIDTH, _page_height, x, y, w, h);
epd2.refresh(x, y, w, h);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImagePartAgain(_buffer, x, y_part, WIDTH, _page_height, x, y, w, h);
}
}
void setFullWindow()
{
_using_partial_mode = false;
_pw_x = 0;
_pw_y = 0;
_pw_w = WIDTH;
_pw_h = HEIGHT;
}
// setPartialWindow, use parameters according to actual rotation.
// x and w should be multiple of 8, for rotation 0 or 2,
// y and h should be multiple of 8, for rotation 1 or 3,
// else window is increased as needed,
// this is an addressing limitation of the e-paper controllers
void setPartialWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
_pw_x = gx_uint16_min(x, width());
_pw_y = gx_uint16_min(y, height());
_pw_w = gx_uint16_min(w, width() - _pw_x);
_pw_h = gx_uint16_min(h, height() - _pw_y);
_rotate(_pw_x, _pw_y, _pw_w, _pw_h);
_using_partial_mode = true;
// make _pw_x, _pw_w multiple of 8
_pw_w += _pw_x % 8;
if (_pw_w % 8 > 0) _pw_w += 8 - _pw_w % 8;
_pw_x -= _pw_x % 8;
}
void firstPage()
{
fillScreen(GxEPD_WHITE);
_current_page = 0;
_second_phase = false;
}
bool nextPage()
{
if (1 == _pages)
{
if (_using_partial_mode)
{
uint32_t offset = _reverse ? (HEIGHT - _pw_h) * _pw_w / 8 : 0;
epd2.writeImage(_buffer + offset, _pw_x, _pw_y, _pw_w, _pw_h);
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer + offset, _pw_x, _pw_y, _pw_w, _pw_h);
//epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h); // not needed
}
}
else // full update
{
epd2.writeImageForFullRefresh(_buffer, 0, 0, WIDTH, HEIGHT);
epd2.refresh(false);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, 0, 0, WIDTH, HEIGHT);
//epd2.refresh(true); // not needed
}
epd2.powerOff();
}
return false;
}
uint16_t page_ys = _current_page * _page_height;
if (_using_partial_mode)
{
//Serial.print(" nextPage("); Serial.print(_pw_x); Serial.print(", "); Serial.print(_pw_y); Serial.print(", ");
//Serial.print(_pw_w); Serial.print(", "); Serial.print(_pw_h); Serial.print(") P"); Serial.println(_current_page);
uint16_t page_ye = _current_page < (_pages - 1) ? page_ys + _page_height : HEIGHT;
uint16_t dest_ys = _pw_y + page_ys; // transposed
uint16_t dest_ye = gx_uint16_min(_pw_y + _pw_h, _pw_y + page_ye);
if (dest_ye > dest_ys)
{
//Serial.print("writeImage("); Serial.print(_pw_x); Serial.print(", "); Serial.print(dest_ys); Serial.print(", ");
//Serial.print(_pw_w); Serial.print(", "); Serial.print(dest_ye - dest_ys); Serial.println(")");
uint32_t offset = _reverse ? (_page_height - (dest_ye - dest_ys)) * _pw_w / 8 : 0;
if (!_second_phase) epd2.writeImage(_buffer + offset, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
else epd2.writeImageAgain(_buffer + offset, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
}
else
{
//Serial.print("writeImage("); Serial.print(_pw_x); Serial.print(", "); Serial.print(dest_ys); Serial.print(", ");
//Serial.print(_pw_w); Serial.print(", "); Serial.print(dest_ye - dest_ys); Serial.print(") skipped ");
//Serial.print(dest_ys); Serial.print(".."); Serial.println(dest_ye);
}
_current_page++;
if (_current_page == _pages)
{
_current_page = 0;
if (!_second_phase)
{
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (epd2.hasFastPartialUpdate)
{
_second_phase = true;
fillScreen(GxEPD_WHITE);
return true;
}
}
return false;
}
fillScreen(GxEPD_WHITE);
return true;
}
else // full update
{
if (!_second_phase) epd2.writeImageForFullRefresh(_buffer, 0, page_ys, WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
else epd2.writeImageAgain(_buffer, 0, page_ys, WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
_current_page++;
if (_current_page == _pages)
{
_current_page = 0;
if (epd2.hasFastPartialUpdate)
{
if (!_second_phase)
{
epd2.refresh(false); // full update after first phase
_second_phase = true;
fillScreen(GxEPD_WHITE);
return true;
}
//else epd2.refresh(true); // partial update after second phase
} else epd2.refresh(false); // full update after only phase
epd2.powerOff();
return false;
}
fillScreen(GxEPD_WHITE);
return true;
}
}
// GxEPD style paged drawing; drawCallback() is called as many times as needed
void drawPaged(void (*drawCallback)(const void*), const void* pv)
{
if (1 == _pages)
{
fillScreen(GxEPD_WHITE);
drawCallback(pv);
if (_using_partial_mode)
{
uint32_t offset = _reverse ? (HEIGHT - _pw_h) * _pw_w / 8 : 0;
epd2.writeImage(_buffer + offset, _pw_x, _pw_y, _pw_w, _pw_h);
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer + offset, _pw_x, _pw_y, _pw_w, _pw_h);
//epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h); // not needed
}
}
else // full update
{
epd2.writeImageForFullRefresh(_buffer, 0, 0, WIDTH, HEIGHT);
epd2.refresh(false);
if (epd2.hasFastPartialUpdate)
{
epd2.writeImageAgain(_buffer, 0, 0, WIDTH, HEIGHT);
//epd2.refresh(true); // not needed
epd2.powerOff();
}
}
return;
}
if (_using_partial_mode)
{
for (uint16_t phase = 1; phase <= 2; phase++)
{
for (_current_page = 0; _current_page < _pages; _current_page++)
{
uint16_t page_ys = _current_page * _page_height;
uint16_t page_ye = _current_page < (_pages - 1) ? page_ys + _page_height : HEIGHT;
uint16_t dest_ys = _pw_y + page_ys; // transposed
uint16_t dest_ye = gx_uint16_min(_pw_y + _pw_h, _pw_y + page_ye);
if (dest_ye > dest_ys)
{
fillScreen(GxEPD_WHITE);
drawCallback(pv);
uint32_t offset = _reverse ? (_page_height - (dest_ye - dest_ys)) * _pw_w / 8 : 0;
if (phase == 1) epd2.writeImage(_buffer + offset, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
else epd2.writeImageAgain(_buffer + offset, _pw_x, dest_ys, _pw_w, dest_ye - dest_ys);
}
}
epd2.refresh(_pw_x, _pw_y, _pw_w, _pw_h);
if (!epd2.hasFastPartialUpdate) break;
// else make both controller buffers have equal content
}
}
else // full update
{
for (_current_page = 0; _current_page < _pages; _current_page++)
{
uint16_t page_ys = _current_page * _page_height;
fillScreen(GxEPD_WHITE);
drawCallback(pv);
epd2.writeImageForFullRefresh(_buffer, 0, page_ys, WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
}
epd2.refresh(false); // full update after first phase
if (epd2.hasFastPartialUpdate)
{
// make both controller buffers have equal content
for (_current_page = 0; _current_page < _pages; _current_page++)
{
uint16_t page_ys = _current_page * _page_height;
fillScreen(GxEPD_WHITE);
drawCallback(pv);
epd2.writeImageAgain(_buffer, 0, page_ys, WIDTH, gx_uint16_min(_page_height, HEIGHT - page_ys));
}
//epd2.refresh(true); // partial update after second phase // not needed
}
epd2.powerOff();
}
_current_page = 0;
}
void drawInvertedBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color)
{
// taken from Adafruit_GFX.cpp, modified
int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
uint8_t byte = 0;
for (int16_t j = 0; j < h; j++)
{
for (int16_t i = 0; i < w; i++ )
{
if (i & 7) byte <<= 1;
else
{
#if defined(__AVR) || defined(ESP8266) || defined(ESP32)
byte = pgm_read_byte(&bitmap[j * byteWidth + i / 8]);
#else
byte = bitmap[j * byteWidth + i / 8];
#endif
}
if (!(byte & 0x80))
{
drawPixel(x + i, y + j, color);
}
}
}
}
// Support for Bitmaps (Sprites) to Controller Buffer and to Screen
void clearScreen(uint8_t value = 0xFF) // init controller memory and screen (default white)
{
epd2.clearScreen(value);
}
void writeScreenBuffer(uint8_t value = 0xFF) // init controller memory (default white)
{
epd2.writeScreenBuffer(value);
}
// write to controller memory, without screen refresh; x and w should be multiple of 8
void writeImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.writeImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void writeImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.writeImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.writeImage(black, color, x, y, w, h, invert, mirror_y, pgm);
}
void writeImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.writeImage(black, color, x, y, w, h, false, false, false);
}
void writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.writeImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void writeImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.writeImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, false, false, false);
}
// write sprite of native data to controller memory, without screen refresh; x and w should be multiple of 8
void writeNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.writeNative(data1, data2, x, y, w, h, invert, mirror_y, pgm);
}
// write to controller memory, with screen refresh; x and w should be multiple of 8
void drawImage(const uint8_t bitmap[], int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.drawImage(bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void drawImagePart(const uint8_t bitmap[], int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert = false, bool mirror_y = false, bool pgm = false)
{
epd2.drawImagePart(bitmap, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.drawImage(black, color, x, y, w, h, invert, mirror_y, pgm);
}
void drawImage(const uint8_t* black, const uint8_t* color, int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.drawImage(black, color, x, y, w, h, false, false, false);
}
void drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.drawImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, invert, mirror_y, pgm);
}
void drawImagePart(const uint8_t* black, const uint8_t* color, int16_t x_part, int16_t y_part, int16_t w_bitmap, int16_t h_bitmap,
int16_t x, int16_t y, int16_t w, int16_t h)
{
epd2.drawImagePart(black, color, x_part, y_part, w_bitmap, h_bitmap, x, y, w, h, false, false, false);
}
// write sprite of native data to controller memory, with screen refresh; x and w should be multiple of 8
void drawNative(const uint8_t* data1, const uint8_t* data2, int16_t x, int16_t y, int16_t w, int16_t h, bool invert, bool mirror_y, bool pgm)
{
epd2.drawNative(data1, data2, x, y, w, h, invert, mirror_y, pgm);
}
void refresh(bool partial_update_mode = false) // screen refresh from controller memory to full screen
{
epd2.refresh(partial_update_mode);
if (!partial_update_mode) epd2.powerOff();
}
void refresh(int16_t x, int16_t y, int16_t w, int16_t h) // screen refresh from controller memory, partial screen
{
epd2.refresh(x, y, w, h);
}
// turns off generation of panel driving voltages, avoids screen fading over time
void powerOff()
{
epd2.powerOff();
}
// turns powerOff() and sets controller to deep sleep for minimum power use, ONLY if wakeable by RST (rst >= 0)
void hibernate()
{
epd2.hibernate();
}
private:
template <typename T> static inline void
_swap_(T & a, T & b)
{
T t = a;
a = b;
b = t;
};
static inline uint16_t gx_uint16_min(uint16_t a, uint16_t b)
{
return (a < b ? a : b);
};
static inline uint16_t gx_uint16_max(uint16_t a, uint16_t b)
{
return (a > b ? a : b);
};
void _rotate(uint16_t& x, uint16_t& y, uint16_t& w, uint16_t& h)
{
switch (getRotation())
{
case 1:
_swap_(x, y);
_swap_(w, h);
x = WIDTH - x - w;
break;
case 2:
x = WIDTH - x - w;
y = HEIGHT - y - h;
break;
case 3:
_swap_(x, y);
_swap_(w, h);
y = HEIGHT - y - h;
break;
}
}
private:
uint8_t _buffer[(GxEPD2_Type::WIDTH / 8) * page_height];
bool _using_partial_mode, _second_phase, _mirror, _reverse;
uint16_t _width_bytes, _pixel_bytes;
int16_t _current_page;
uint16_t _pages, _page_height;
uint16_t _pw_x, _pw_y, _pw_w, _pw_h;
};
#endif