mirror of
https://github.com/adafruit/Adafruit-GFX-Library.git
synced 2024-09-19 17:25:58 -04:00
Gray oled support (#317)
rename monooled to grayoled and support 1 or 4 bpp - backtested with SH110x and also new SSD1327 bump too
This commit is contained in:
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@ -1,7 +1,7 @@
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/*!
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* @file Adafruit_MonoOLED.cpp
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* @file Adafruit_GrayOLED.cpp
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*
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* This is documentation for Adafruit's generic library for monochrome
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* This is documentation for Adafruit's generic library for grayscale
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* OLED displays: http://www.adafruit.com/category/63_98
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*
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* These displays use I2C or SPI to communicate. I2C requires 2 pins
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@ -17,18 +17,19 @@
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#if !defined(__AVR_ATtiny85__) // Not for ATtiny, at all
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#include "Adafruit_MonoOLED.h"
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#include "Adafruit_GrayOLED.h"
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#include <Adafruit_GFX.h>
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// SOME DEFINES AND STATIC VARIABLES USED INTERNALLY -----------------------
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#define monooled_swap(a, b) \
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#define grayoled_swap(a, b) \
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(((a) ^= (b)), ((b) ^= (a)), ((a) ^= (b))) ///< No-temp-var swap operation
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// CONSTRUCTORS, DESTRUCTOR ------------------------------------------------
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/*!
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@brief Constructor for I2C-interfaced OLED displays.
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@param bpp Bits per pixel, 1 for monochrome, 4 for 16-gray
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@param w
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Display width in pixels
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@param h
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@ -59,18 +60,19 @@
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@note Call the object's begin() function before use -- buffer
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allocation is performed there!
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*/
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Adafruit_MonoOLED::Adafruit_MonoOLED(uint16_t w, uint16_t h, TwoWire *twi,
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int8_t rst_pin, uint32_t clkDuring,
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uint32_t clkAfter)
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Adafruit_GrayOLED::Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h,
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TwoWire *twi, int8_t rst_pin,
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uint32_t clkDuring, uint32_t clkAfter)
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: Adafruit_GFX(w, h), i2c_preclk(clkDuring), i2c_postclk(clkAfter),
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buffer(NULL), dcPin(-1), csPin(-1), rstPin(rst_pin) {
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buffer(NULL), dcPin(-1), csPin(-1), rstPin(rst_pin), _bpp(bpp) {
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i2c_dev = NULL;
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_theWire = twi;
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}
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/*!
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@brief Constructor for SPI MonoOLED displays, using software (bitbang)
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@brief Constructor for SPI GrayOLED displays, using software (bitbang)
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SPI.
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@param bpp Bits per pixel, 1 for monochrome, 4 for 16-gray
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@param w
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Display width in pixels
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@param h
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@ -94,16 +96,19 @@ Adafruit_MonoOLED::Adafruit_MonoOLED(uint16_t w, uint16_t h, TwoWire *twi,
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@note Call the object's begin() function before use -- buffer
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allocation is performed there!
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*/
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Adafruit_MonoOLED::Adafruit_MonoOLED(uint16_t w, uint16_t h, int8_t mosi_pin,
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int8_t sclk_pin, int8_t dc_pin,
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int8_t rst_pin, int8_t cs_pin)
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: Adafruit_GFX(w, h), dcPin(dc_pin), csPin(cs_pin), rstPin(rst_pin) {
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Adafruit_GrayOLED::Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h,
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int8_t mosi_pin, int8_t sclk_pin,
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int8_t dc_pin, int8_t rst_pin,
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int8_t cs_pin)
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: Adafruit_GFX(w, h), dcPin(dc_pin), csPin(cs_pin), rstPin(rst_pin),
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_bpp(bpp) {
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spi_dev = new Adafruit_SPIDevice(cs_pin, sclk_pin, -1, mosi_pin, 1000000);
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}
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/*!
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@brief Constructor for SPI MonoOLED displays, using native hardware SPI.
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@brief Constructor for SPI GrayOLED displays, using native hardware SPI.
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@param bpp Bits per pixel, 1 for monochrome, 4 for 16-gray
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@param w
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Display width in pixels
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@param h
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@ -127,19 +132,21 @@ Adafruit_MonoOLED::Adafruit_MonoOLED(uint16_t w, uint16_t h, int8_t mosi_pin,
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@note Call the object's begin() function before use -- buffer
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allocation is performed there!
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*/
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Adafruit_MonoOLED::Adafruit_MonoOLED(uint16_t w, uint16_t h, SPIClass *spi,
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int8_t dc_pin, int8_t rst_pin,
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int8_t cs_pin, uint32_t bitrate)
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: Adafruit_GFX(w, h), dcPin(dc_pin), csPin(cs_pin), rstPin(rst_pin) {
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Adafruit_GrayOLED::Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h,
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SPIClass *spi, int8_t dc_pin,
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int8_t rst_pin, int8_t cs_pin,
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uint32_t bitrate)
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: Adafruit_GFX(w, h), dcPin(dc_pin), csPin(cs_pin), rstPin(rst_pin),
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_bpp(bpp) {
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spi_dev = new Adafruit_SPIDevice(cs_pin, bitrate, SPI_BITORDER_MSBFIRST,
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SPI_MODE0, spi);
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}
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/*!
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@brief Destructor for Adafruit_MonoOLED object.
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@brief Destructor for Adafruit_GrayOLED object.
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*/
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Adafruit_MonoOLED::~Adafruit_MonoOLED(void) {
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Adafruit_GrayOLED::~Adafruit_GrayOLED(void) {
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if (buffer) {
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free(buffer);
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buffer = NULL;
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@ -157,7 +164,7 @@ Adafruit_MonoOLED::~Adafruit_MonoOLED(void) {
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needed.
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@param c The single byte command
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*/
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void Adafruit_MonoOLED::oled_command(uint8_t c) {
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void Adafruit_GrayOLED::oled_command(uint8_t c) {
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if (i2c_dev) { // I2C
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uint8_t buf[2] = {0x00, c}; // Co = 0, D/C = 0
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i2c_dev->write(buf, 2);
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@ -167,7 +174,7 @@ void Adafruit_MonoOLED::oled_command(uint8_t c) {
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}
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}
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// Issue list of commands to MonoOLED
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// Issue list of commands to GrayOLED
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/*!
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@brief Issue multiple bytes of commands OLED, using I2C or hard/soft SPI as
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needed.
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@ -176,7 +183,7 @@ void Adafruit_MonoOLED::oled_command(uint8_t c) {
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@returns True for success on ability to write the data in I2C.
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*/
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bool Adafruit_MonoOLED::oled_commandList(const uint8_t *c, uint8_t n) {
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bool Adafruit_GrayOLED::oled_commandList(const uint8_t *c, uint8_t n) {
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if (i2c_dev) { // I2C
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uint8_t dc_byte = 0x00; // Co = 0, D/C = 0
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if (!i2c_dev->write((uint8_t *)c, n, true, &dc_byte, 1)) {
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@ -213,10 +220,11 @@ bool Adafruit_MonoOLED::oled_commandList(const uint8_t *c, uint8_t n) {
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proceeding.
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@note MUST call this function before any drawing or updates!
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*/
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bool Adafruit_MonoOLED::_init(uint8_t addr, bool reset) {
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bool Adafruit_GrayOLED::_init(uint8_t addr, bool reset) {
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// attempt to malloc the bitmap framebuffer
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if ((!buffer) && !(buffer = (uint8_t *)malloc(WIDTH * ((HEIGHT + 7) / 8)))) {
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if ((!buffer) &&
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!(buffer = (uint8_t *)malloc(_bpp * WIDTH * ((HEIGHT + 7) / 8)))) {
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return false;
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}
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@ -269,17 +277,16 @@ bool Adafruit_MonoOLED::_init(uint8_t addr, bool reset) {
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@param color
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Pixel color, one of: MONOOLED_BLACK, MONOOLED_WHITE or
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MONOOLED_INVERT.
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@return None (void).
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@note Changes buffer contents only, no immediate effect on display.
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Follow up with a call to display(), or with other graphics
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commands as needed by one's own application.
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*/
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void Adafruit_MonoOLED::drawPixel(int16_t x, int16_t y, uint16_t color) {
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void Adafruit_GrayOLED::drawPixel(int16_t x, int16_t y, uint16_t color) {
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if ((x >= 0) && (x < width()) && (y >= 0) && (y < height())) {
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// Pixel is in-bounds. Rotate coordinates if needed.
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switch (getRotation()) {
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case 1:
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monooled_swap(x, y);
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grayoled_swap(x, y);
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x = WIDTH - x - 1;
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break;
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case 2:
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@ -287,7 +294,7 @@ void Adafruit_MonoOLED::drawPixel(int16_t x, int16_t y, uint16_t color) {
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y = HEIGHT - y - 1;
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break;
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case 3:
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monooled_swap(x, y);
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grayoled_swap(x, y);
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y = HEIGHT - y - 1;
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break;
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}
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@ -298,29 +305,43 @@ void Adafruit_MonoOLED::drawPixel(int16_t x, int16_t y, uint16_t color) {
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window_x2 = max(window_x2, x);
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window_y2 = max(window_y2, y);
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switch (color) {
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case MONOOLED_WHITE:
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buffer[x + (y / 8) * WIDTH] |= (1 << (y & 7));
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break;
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case MONOOLED_BLACK:
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buffer[x + (y / 8) * WIDTH] &= ~(1 << (y & 7));
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break;
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case MONOOLED_INVERSE:
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buffer[x + (y / 8) * WIDTH] ^= (1 << (y & 7));
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break;
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if (_bpp == 1) {
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switch (color) {
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case MONOOLED_WHITE:
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buffer[x + (y / 8) * WIDTH] |= (1 << (y & 7));
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break;
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case MONOOLED_BLACK:
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buffer[x + (y / 8) * WIDTH] &= ~(1 << (y & 7));
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break;
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case MONOOLED_INVERSE:
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buffer[x + (y / 8) * WIDTH] ^= (1 << (y & 7));
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break;
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}
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}
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if (_bpp == 4) {
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uint8_t *pixelptr = &buffer[x / 2 + (y * WIDTH / 2)];
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// Serial.printf("(%d, %d) -> offset %d\n", x, y, x/2 + (y * WIDTH / 2));
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if (x % 2 == 0) { // even, left nibble
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uint8_t t = pixelptr[0] & 0x0F;
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t |= (color & 0xF) << 4;
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pixelptr[0] = t;
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} else { // odd, right lower nibble
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uint8_t t = pixelptr[0] & 0xF0;
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t |= color & 0xF;
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pixelptr[0] = t;
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}
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}
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}
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}
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/*!
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@brief Clear contents of display buffer (set all pixels to off).
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@return None (void).
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@note Changes buffer contents only, no immediate effect on display.
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Follow up with a call to display(), or with other graphics
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commands as needed by one's own application.
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*/
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void Adafruit_MonoOLED::clearDisplay(void) {
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memset(buffer, 0, WIDTH * ((HEIGHT + 7) / 8));
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void Adafruit_GrayOLED::clearDisplay(void) {
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memset(buffer, 0, _bpp * WIDTH * ((HEIGHT + 7) / 8));
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// set max dirty window
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window_x1 = 0;
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window_y1 = 0;
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@ -339,12 +360,12 @@ void Adafruit_MonoOLED::clearDisplay(void) {
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@note Reads from buffer contents; may not reflect current contents of
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screen if display() has not been called.
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*/
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bool Adafruit_MonoOLED::getPixel(int16_t x, int16_t y) {
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bool Adafruit_GrayOLED::getPixel(int16_t x, int16_t y) {
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if ((x >= 0) && (x < width()) && (y >= 0) && (y < height())) {
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// Pixel is in-bounds. Rotate coordinates if needed.
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switch (getRotation()) {
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case 1:
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monooled_swap(x, y);
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grayoled_swap(x, y);
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x = WIDTH - x - 1;
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break;
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case 2:
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@ -352,7 +373,7 @@ bool Adafruit_MonoOLED::getPixel(int16_t x, int16_t y) {
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y = HEIGHT - y - 1;
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break;
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case 3:
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monooled_swap(x, y);
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grayoled_swap(x, y);
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y = HEIGHT - y - 1;
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break;
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}
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@ -366,7 +387,7 @@ bool Adafruit_MonoOLED::getPixel(int16_t x, int16_t y) {
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@return Pointer to an unsigned 8-bit array, column-major, columns padded
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to full byte boundary if needed.
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*/
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uint8_t *Adafruit_MonoOLED::getBuffer(void) { return buffer; }
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uint8_t *Adafruit_GrayOLED::getBuffer(void) { return buffer; }
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// OTHER HARDWARE SETTINGS -------------------------------------------------
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@ -376,26 +397,24 @@ uint8_t *Adafruit_MonoOLED::getBuffer(void) { return buffer; }
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@param i
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If true, switch to invert mode (black-on-white), else normal
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mode (white-on-black).
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@return None (void).
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@note This has an immediate effect on the display, no need to call the
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display() function -- buffer contents are not changed, rather a
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different pixel mode of the display hardware is used. When
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enabled, drawing MONOOLED_BLACK (value 0) pixels will actually draw
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white, MONOOLED_WHITE (value 1) will draw black.
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*/
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void Adafruit_MonoOLED::invertDisplay(bool i) {
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oled_command(i ? MONOOLED_INVERTDISPLAY : MONOOLED_NORMALDISPLAY);
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void Adafruit_GrayOLED::invertDisplay(bool i) {
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oled_command(i ? GRAYOLED_INVERTDISPLAY : GRAYOLED_NORMALDISPLAY);
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}
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/*!
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@brief Adjust the display contrast.
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@param level The contrast level from 0 to 0x7F
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@return None (void).
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@note This has an immediate effect on the display, no need to call the
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display() function -- buffer contents are not changed.
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*/
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void Adafruit_MonoOLED::setContrast(uint8_t level) {
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uint8_t cmd[] = {MONOOLED_SETCONTRAST, level};
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void Adafruit_GrayOLED::setContrast(uint8_t level) {
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uint8_t cmd[] = {GRAYOLED_SETCONTRAST, level};
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oled_commandList(cmd, 2);
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}
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@ -1,8 +1,8 @@
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/*!
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* @file Adafruit_MonoOLED.h
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* @file Adafruit_GrayOLED.h
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*
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* This is part of for Adafruit's GFX library, supplying generic support
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* for monochrome OLED displays: http://www.adafruit.com/category/63_98
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* for grayscale OLED displays: http://www.adafruit.com/category/63_98
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*
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* These displays use I2C or SPI to communicate. I2C requires 2 pins
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* (SCL+SDA) and optionally a RESET pin. SPI requires 4 pins (MOSI, SCK,
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@ -21,8 +21,8 @@
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*
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*/
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#ifndef _Adafruit_MONOOLED_H_
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#define _Adafruit_MONOOLED_H_
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#ifndef _Adafruit_GRAYOLED_H_
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#define _Adafruit_GRAYOLED_H_
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#if !defined(__AVR_ATtiny85__) // Not for ATtiny, at all
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@ -32,33 +32,31 @@
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#include <SPI.h>
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#include <Wire.h>
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#define MONOOLED_BLACK 0 ///< Draw 'off' pixels
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#define MONOOLED_WHITE 1 ///< Draw 'on' pixels
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#define MONOOLED_INVERSE 2 ///< Invert pixels
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#define GRAYOLED_SETCONTRAST 0x81 ///< Generic contrast for almost all OLEDs
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#define GRAYOLED_NORMALDISPLAY 0xA6 ///< Generic non-invert for almost all OLEDs
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#define GRAYOLED_INVERTDISPLAY 0xA7 ///< Generic invert for almost all OLEDs
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/// These seem to be common commands for OLEDs
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#define MONOOLED_SETCONTRAST 0x81 ///< See datasheet
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#define MONOOLED_NORMALDISPLAY 0xA6 ///< See datasheet
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#define MONOOLED_INVERTDISPLAY 0xA7 ///< See datasheet
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#define MONOOLED_DISPLAYOFF 0xAE ///< See datasheet
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#define MONOOLED_DISPLAYON 0xAF ///< See datasheet
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#define MONOOLED_BLACK 0 ///< Default black 'color' for monochrome OLEDS
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#define MONOOLED_WHITE 1 ///< Default white 'color' for monochrome OLEDS
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#define MONOOLED_INVERSE 2 ///< Default inversion command for monochrome OLEDS
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/*!
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@brief Class that stores state and functions for interacting with
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generic monochrome OLED displays.
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generic grayscale OLED displays.
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*/
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class Adafruit_MonoOLED : public Adafruit_GFX {
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class Adafruit_GrayOLED : public Adafruit_GFX {
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public:
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Adafruit_MonoOLED(uint16_t w, uint16_t h, TwoWire *twi = &Wire,
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Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h, TwoWire *twi = &Wire,
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int8_t rst_pin = -1, uint32_t preclk = 400000,
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uint32_t postclk = 100000);
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Adafruit_MonoOLED(uint16_t w, uint16_t h, int8_t mosi_pin, int8_t sclk_pin,
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int8_t dc_pin, int8_t rst_pin, int8_t cs_pin);
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Adafruit_MonoOLED(uint16_t w, uint16_t h, SPIClass *spi, int8_t dc_pin,
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int8_t rst_pin, int8_t cs_pin,
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Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h, int8_t mosi_pin,
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int8_t sclk_pin, int8_t dc_pin, int8_t rst_pin,
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int8_t cs_pin);
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Adafruit_GrayOLED(uint8_t bpp, uint16_t w, uint16_t h, SPIClass *spi,
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int8_t dc_pin, int8_t rst_pin, int8_t cs_pin,
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uint32_t bitrate = 8000000UL);
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~Adafruit_MonoOLED(void);
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~Adafruit_GrayOLED(void);
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/**
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@brief The function that sub-classes define that writes out the buffer to
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@ -93,9 +91,10 @@ protected:
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csPin, ///< The Arduino pin connected to CS (for SPI)
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rstPin; ///< The Arduino pin connected to reset (-1 if unused)
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uint8_t _bpp = 1; ///< Bits per pixel color for this display
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private:
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TwoWire *_theWire = NULL; ///< The underlying hardware I2C
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};
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||||
#endif // end __AVR_ATtiny85__
|
||||
#endif // _Adafruit_MonoOLED_H_
|
||||
#endif // _Adafruit_GrayOLED_H_
|
@ -1,5 +1,5 @@
|
||||
name=Adafruit GFX Library
|
||||
version=1.9.0
|
||||
version=1.10.0
|
||||
author=Adafruit
|
||||
maintainer=Adafruit <info@adafruit.com>
|
||||
sentence=Adafruit GFX graphics core library, this is the 'core' class that all our other graphics libraries derive from.
|
||||
|
Loading…
Reference in New Issue
Block a user