mirror of https://github.com/meshcore-dev/MeshCore
Scott Powell
2 weeks ago
8 changed files with 193 additions and 18 deletions
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#include "SSD1315Display.h" |
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#ifndef SCREEN_XOFFSET |
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#define SCREEN_XOFFSET 0 |
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#endif |
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#ifndef SCREEN_YOFFSET |
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#define SCREEN_YOFFSET 0 |
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#endif |
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bool SSD1315Display::i2c_probe(TwoWire& wire, uint8_t addr) { |
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wire.beginTransmission(addr); |
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uint8_t error = wire.endTransmission(); |
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return (error == 0); |
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} |
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bool SSD1315Display::begin() { |
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if (!_isOn) { |
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if (_peripher_power) _peripher_power->claim(); |
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_isOn = true; |
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} |
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#ifdef DISPLAY_ROTATION |
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display.setRotation(DISPLAY_ROTATION); |
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#endif |
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return display.begin(SSD1306_SWITCHCAPVCC, DISPLAY_ADDRESS, true, false) && i2c_probe(Wire, DISPLAY_ADDRESS); |
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} |
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void SSD1315Display::turnOn() { |
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if (!_isOn) { |
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if (_peripher_power) _peripher_power->claim(); |
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_isOn = true; // set before begin() to prevent double claim
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if (_peripher_power) begin(); // re-init display after power was cut
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} |
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display.ssd1306_command(SSD1306_DISPLAYON); |
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} |
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void SSD1315Display::turnOff() { |
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display.ssd1306_command(SSD1306_DISPLAYOFF); |
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if (_isOn) { |
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if (_peripher_power) { |
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#if PIN_OLED_RESET >= 0 |
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digitalWrite(PIN_OLED_RESET, LOW); |
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#endif |
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_peripher_power->release(); |
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} |
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_isOn = false; |
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} |
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} |
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void SSD1315Display::clear() { |
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display.clearDisplay(); |
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display.display(); |
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} |
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void SSD1315Display::startFrame(Color bkg) { |
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display.clearDisplay(); // TODO: apply 'bkg'
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_color = SSD1306_WHITE; |
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display.setTextColor(_color); |
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display.setTextSize(1); |
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display.cp437(true); // Use full 256 char 'Code Page 437' font
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} |
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void SSD1315Display::setTextSize(int sz) { |
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display.setTextSize(1); // only small allowed
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} |
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void SSD1315Display::setColor(Color c) { |
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_color = (c != 0) ? SSD1306_WHITE : SSD1306_BLACK; |
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display.setTextColor(_color); |
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} |
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void SSD1315Display::setCursor(int x, int y) { |
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display.setCursor(x + SCREEN_XOFFSET, y + SCREEN_YOFFSET); |
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} |
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void SSD1315Display::print(const char* str) { |
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display.print(str); |
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} |
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void SSD1315Display::fillRect(int x, int y, int w, int h) { |
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display.fillRect(x + SCREEN_XOFFSET, y + SCREEN_YOFFSET, w, h, _color); |
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} |
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void SSD1315Display::drawRect(int x, int y, int w, int h) { |
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display.drawRect(x + SCREEN_XOFFSET, y + SCREEN_YOFFSET, w, h, _color); |
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} |
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void SSD1315Display::drawXbm(int x, int y, const uint8_t* bits, int w, int h) { |
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// Width in bytes for bitmap processing
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uint16_t widthInBytes = (w + 7) / 8; |
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x += SCREEN_XOFFSET; |
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y += SCREEN_YOFFSET; |
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// Process the bitmap row by row
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for (int by = 0; by < h; by++) { |
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// Scan across the row bit by bit
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for (int bx = 0; bx < w; bx++) { |
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// Get the current bit using MSB ordering (like GxEPDDisplay)
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uint16_t byteOffset = (by * widthInBytes) + (bx / 8); |
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uint8_t bitMask = 1 << (bx & 7); |
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bool bitSet = bits[byteOffset] & bitMask; |
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// If the bit is set, draw the pixel
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if (bitSet) { |
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display.drawPixel(x + bx, y + by, SSD1306_WHITE); |
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} |
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} |
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} |
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// wrong bit order:
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// display.drawBitmap(x + SCREEN_XOFFSET, y + SCREEN_YOFFSET, bits, w, h, SSD1306_WHITE);
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} |
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uint16_t SSD1315Display::getTextWidth(const char* str) { |
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int16_t x1, y1; |
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uint16_t w, h; |
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display.getTextBounds(str, 0, 0, &x1, &y1, &w, &h); |
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return w; |
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} |
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void SSD1315Display::endFrame() { |
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display.display(); |
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} |
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@ -0,0 +1,48 @@ |
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#pragma once |
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#include "DisplayDriver.h" |
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#include <Wire.h> |
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#include <Adafruit_GFX.h> |
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#define SSD1306_NO_SPLASH |
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#include <Adafruit_SSD1306.h> |
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#include <helpers/RefCountedDigitalPin.h> |
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#ifndef PIN_OLED_RESET |
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#define PIN_OLED_RESET 21 // Reset pin # (or -1 if sharing Arduino reset pin)
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#endif |
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#ifndef DISPLAY_ADDRESS |
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#define DISPLAY_ADDRESS 0x3C |
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#endif |
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class SSD1315Display : public DisplayDriver { |
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Adafruit_SSD1306 display; |
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bool _isOn; |
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uint8_t _color; |
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RefCountedDigitalPin* _peripher_power; |
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bool i2c_probe(TwoWire& wire, uint8_t addr); |
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public: |
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SSD1315Display(RefCountedDigitalPin* peripher_power=NULL) : DisplayDriver(64, 32), |
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display(128, 64, &Wire, PIN_OLED_RESET), |
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_peripher_power(peripher_power) |
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{ |
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_isOn = false; |
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} |
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bool begin(); |
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bool isOn() override { return _isOn; } |
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void turnOn() override; |
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void turnOff() override; |
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void clear() override; |
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void startFrame(Color bkg = DARK) override; |
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void setTextSize(int sz) override; |
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void setColor(Color c) override; |
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void setCursor(int x, int y) override; |
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void print(const char* str) override; |
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void fillRect(int x, int y, int w, int h) override; |
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void drawRect(int x, int y, int w, int h) override; |
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void drawXbm(int x, int y, const uint8_t* bits, int w, int h) override; |
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uint16_t getTextWidth(const char* str) override; |
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void endFrame() override; |
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}; |
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