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WIP new adafruit eink display lib at least starts

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This commit is contained in:
Kevin Hester
2021-06-27 11:17:53 -07:00
parent 17a1262382
commit 659286f738
6 changed files with 31 additions and 224 deletions
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50
src/graphics/EInkDisplay2.cpp
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@@ -1,22 +1,22 @@
#include "configuration.h"
#ifdef HAS_EINK2
#include "EInkDisplay.h"
#ifdef HAS_EINK
#include "EInkDisplay2.h"
#include "SPILock.h"
#include <SPI.h>
#include "GxEPD2_BW.h"
#define COLORED 0
#define UNCOLORED 1
#define COLORED GxEPD_BLACK
#define UNCOLORED GxEPD_WHITE
#define INK COLORED // Black ink
#define PAPER UNCOLORED // 'paper' background colour
#define EPD_WIDTH 200 // FIXME
#define EPD_HEIGHT 200
#define TECHO_DISPLAY_MODEL GxEPD2_154_D67
GxEPD2_BW<TECHO_DISPLAY_MODEL, TECHO_DISPLAY_MODEL::HEIGHT> *adafruitDisplay;
EInkDisplay::EInkDisplay(uint8_t address, int sda, int scl)
{
setGeometry(GEOMETRY_RAWMODE, EPD_WIDTH, EPD_HEIGHT);
setGeometry(GEOMETRY_RAWMODE, TECHO_DISPLAY_MODEL::WIDTH, TECHO_DISPLAY_MODEL::HEIGHT);
// setGeometry(GEOMETRY_RAWMODE, 128, 64); // old resolution
// setGeometry(GEOMETRY_128_64); // We originally used this because I wasn't sure if rawmode worked - it does
}
@@ -35,7 +35,7 @@ bool EInkDisplay::forceDisplay(uint32_t msecLimit)
uint32_t now = millis();
uint32_t sinceLast = now - lastDrawMsec;
if (sinceLast > msecLimit || lastDrawMsec == 0) {
if (false && adafruitDisplay && (sinceLast > msecLimit || lastDrawMsec == 0)) {
lastDrawMsec = now;
// FIXME - only draw bits have changed (use backbuf similar to the other displays)
@@ -46,15 +46,15 @@ bool EInkDisplay::forceDisplay(uint32_t msecLimit)
// get src pixel in the page based ordering the OLED lib uses FIXME, super inefficent
auto b = buffer[x + (y / 8) * displayWidth];
auto isset = b & (1 << (y & 7));
// frame.drawPixel(x, y, isset ? INK : PAPER);
adafruitDisplay->drawPixel(x, y, isset ? COLORED : UNCOLORED);
}
}
DEBUG_MSG("Updating eink... ");
// ePaper.Reset(); // wake the screen from sleep
// updateDisplay(); // Send image to display and refresh
// Put screen to sleep to save power
// ePaper.Sleep();
adafruitDisplay->display(false); // FIXME, use partial update mode
// Put screen to sleep to save power (possibly not necessary because we already did poweroff inside of display)
// adafruitDisplay->hibernate();
DEBUG_MSG("done\n");
return true;
@@ -97,14 +97,20 @@ bool EInkDisplay::connect()
pinMode(PIN_EINK_EN, OUTPUT);
#endif
// Initialise the ePaper library
// FIXME - figure out how to use lut_partial_update
if (false) {
DEBUG_MSG("ePaper init failed\n");
return false;
} else {
return true;
}
auto lowLevel = new TECHO_DISPLAY_MODEL(PIN_EINK_CS,
PIN_EINK_DC,
PIN_EINK_RES,
PIN_EINK_BUSY);
adafruitDisplay = new GxEPD2_BW<TECHO_DISPLAY_MODEL, TECHO_DISPLAY_MODEL::HEIGHT>(*lowLevel);
adafruitDisplay->init();
adafruitDisplay->setRotation(1);
adafruitDisplay->setFullWindow();
adafruitDisplay->fillScreen(UNCOLORED);
adafruitDisplay->drawCircle(100, 100, 20, COLORED);
adafruitDisplay->display(false);
return true;
}
#endif