10000 Optimization in display function to speed up drawing, added esp-idf e… · kebot-embedded/esp32-snippets@0acf6a3 · GitHub
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chegewarachegewara
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Optimization in display function to speed up drawing, added esp-idf example
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‎hardware/displays/Adafruit_SSD1306-Library/Adafruit_SSD1306.h

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@@ -123,7 +123,7 @@ class Adafruit_SSD1306 : public Adafruit_GFX {
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void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC, uint8_t i2caddr = SSD1306_I2C_ADDRESS, bool reset=true);
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void ssd1306_command(uint8_t c);
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void ssd1306_command(uint8_t *c, uint8_t l);
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#ifndef ARDUINO
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void print(char*);
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void println(char*);

‎hardware/displays/Adafruit_SSD1306-Library/examples/main/component.mk

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#
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# Main component makefile.
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#
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# This Makefile can be left empty. By default, it will take the sources in the
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# src/ directory, compile them and link them into lib(subdirectory_name).a
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# in the build directory. This behaviour is entirely configurable,
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# please read the ESP-IDF documents if you need to do this.
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#

‎hardware/displays/Adafruit_SSD1306-Library/examples/main/main.cpp

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#include "freertos/FreeRTOS.h"
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#include "esp_event.h"
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extern "C"{
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void app_main(void);
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}
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void test_task(void*);
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void app_main(void)
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{
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xTaskCreate(&test_task, "test", 2048, NULL, 5, NULL);
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}
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‎hardware/displays/Adafruit_SSD1306-Library/examples/main/tests.cpp

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/*
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* tests.cpp
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*
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* Created on: Oct 9, 2017
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* Author: chegewara
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*/
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#define enablePartialUpdate
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "driver/gpio.h"
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//#include "math.h"
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#include "sdkconfig.h"
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#include "Adafruit_SSD1306.h"
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#define SCLK_PIN GPIO_NUM_18
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#define DIN_PIN GPIO_NUM_23
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#define DC_PIN GPIO_NUM_16
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#define CS_PIN GPIO_NUM_5
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#define RST_PIN GPIO_NUM_14
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#ifndef min
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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#endif
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#define NUMFLAKES 10
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#define XPOS 0
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#define YPOS 1
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#define DELTAY 2
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#define delay(x) vTaskDelay(x/portTICK_PERIOD_MS)
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#define LOGO16_GLCD_HEIGHT 16
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#define LOGO16_GLCD_WIDTH 16
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static const unsigned char logo16_glcd_bmp[] =
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{ 0b00000000, 0b11000000,
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0b00000001, 0b11000000,
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0b00000001, 0b11000000,
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0b00000011, 0b11100000,
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0b11110011, 0b11100000,
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0b11111110, 0b11111000,
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0b01111110, 0b11111111,
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0b00110011, 0b10011111,
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0b00011111, 0b11111100,
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0b00001101, 0b01110000,
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0b00011011, 0b10100000,
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0b00111111, 0b11100000,
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0b00111111, 0b11110000,
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0b01111100, 0b11110000,
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0b01110000, 0b01110000,
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0b00000000, 0b00110000 };
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Adafruit_SSD1306 display = Adafruit_SSD1306(DIN_PIN, SCLK_PIN, DC_PIN, RST_PIN, CS_PIN);
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void testdrawchar(void) {
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0,0);
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for (uint8_t i=0; i < 168; i++) {
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if (i == '\n') continue;
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display.write(i);
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//if ((i > 0) && (i % 14 == 0))
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//display.println();
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}
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display.display();
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}
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void testdrawcircle(void) {
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for (int16_t i=0; i<display.height(); i+=2) {
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display.drawCircle(display.width()/2, display.height()/2, i, WHITE);
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display.display();
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}
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}
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void testfillrect(void) {
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uint8_t color = 1;
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for (int16_t i=0; i<display.height()/2; i+=3) {
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// alternate colors
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display.fillRect(i, i, display.width()-i*2, display.height()-i*2, color%2);
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display.display();
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color++;
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}
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}
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void testdrawtriangle(void) {
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for (int16_t i=0; i<min(display.width(),display.height())/2; i+=5) {
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display.drawTriangle(display.width()/2, display.height()/2-i,
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display.width()/2-i, display.height()/2+i,
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display.width()/2+i, display.height()/2+i, WHITE);
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display.display();
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}
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}
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void testfilltriangle(void) {
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uint8_t color = BLACK;
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for (int16_t i=min(display.width(),display.height())/2; i>0; i-=5) {
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display.fillTriangle(display.width()/2, display.height()/2-i,
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display.width()/2-i, display.height()/2+i,
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display.width()/2+i, display.height()/2+i, color);
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if (color == WHITE) color = BLACK;
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else color = WHITE;
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display.display();
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}
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}
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void testdrawroundrect(void) {
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for (int16_t i=0; i<display.height()/2-2; i+=2) {
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display.drawRoundRect(i, i, display.width()-2*i, display.height()-2*i, display.height()/4, WHITE);
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display.display();
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}
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}
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void testfillroundrect(void) {
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uint8_t color = BLACK;
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for (int16_t i=0; i<display.height()/2-2; i+=2) {
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display.fillRoundRect(i, i, display.width()-2*i, display.height()-2*i, display.height()/4, color);
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if (color == WHITE) color = BLACK;
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else color = WHITE;
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display.display();
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}
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}
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void testdrawrect(void) {
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for (int16_t i=0; i<display.height()/2; i+=2) {
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display.drawRect(i, i, display.width()-2*i, display.height()-2*i, WHITE);
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display.display();
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}
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}
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void testdrawline() {
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for (int16_t i=0; i<display.width(); i+=4) {
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display.drawLine(0, 0, i, display.height()-1, WHITE);
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display.display();
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}
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for (int16_t i=0; i<display.height(); i+=4) {
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display.drawLine(0, 0, display.width()-1, i, WHITE);
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display.display();
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}
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delay(25);
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display.clearDisplay();
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for (int16_t i=0; i<display.width(); i+=4) {
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display.drawLine(0, display.height()-1, i, 0, WHITE);
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display.display();
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}
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for (int8_t i=display.height()-1; i>=0; i-=4) {
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display.drawLine(0, display.height()-1, display.width()-1, i, WHITE);
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display.display();
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}
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delay(25);
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display.clearDisplay();
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for (int16_t i=display.width()-1; i>=0; i-=4) {
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display.drawLine(display.width()-1, display.height()-1, i, 0, WHITE);
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display.display();
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}
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for (int16_t i=display.height()-1; i>=0; i-=4) {
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display.drawLine(display.width()-1, display.height()-1, 0, i, WHITE);
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display.display();
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}
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delay(25);
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display.clearDisplay();
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for (int16_t i=0; i<display.height(); i+=4) {
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display.drawLine(display.width()-1, 0, 0, i, WHITE);
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display.display();
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}
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for (int16_t i=0; i<display.width(); i+=4) {
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display.drawLine(display.width()-1, 0, i, display.height()-1, WHITE);
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display.display();
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}
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delay(25);
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}
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void testscrolltext(void) {
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display.setTextSize(2);
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display.setTextColor(WHITE);
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display.setCursor(10,0);
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display.clearDisplay();
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display.println((char*)"scroll");
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display.display();
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display.startscrollright(0x00, 0x0F);
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delay(2000);
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display.stopscroll();
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delay(1000);
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display.startscrollleft(0x00, 0x0F);
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delay(2000);
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display.stopscroll();
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delay(1000);
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display.startscrolldiagright(0x00, 0x07);
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delay(2000);
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display.startscrolldiagleft(0x00, 0x07);
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delay(2000);
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display.stopscroll();
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}
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void testdrawbitmap(const uint8_t *bitmap, uint8_t w, uint8_t h) {
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uint8_t icons[NUMFLAKES][3];
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// initialize
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for (uint8_t f=0; f< NUMFLAKES; f++) {
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icons[f][XPOS] = rand()%display.width();
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icons[f][YPOS] = 0;
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icons[f][DELTAY] = rand()%(5) + 1;
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}
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while (1) {
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// draw each icon
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for (uint8_t f=0; f< NUMFLAKES; f++) {
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display.drawBitmap(icons[f][XPOS], icons[f][YPOS], logo16_glcd_bmp, w, h, WHITE);
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}
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display.display();
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delay(20);
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// then erase it + move it
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for (uint8_t f=0; f< NUMFLAKES; f++) {
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display.drawBitmap(icons[f][XPOS], icons[f][YPOS], logo16_glcd_bmp, w, h, BLACK);
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// move it
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icons[f][YPOS] += icons[f][DELTAY];
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// if its gone, reinit
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if (icons[f][YPOS] > display.height()) {
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icons[f][XPOS] = rand()%(display.width());
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icons[f][YPOS] = 0;
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icons[f][DELTAY] = rand()%(5) + 1;
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}
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}
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}
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}
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void test_task(void*) {
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while(1){
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display.begin();
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//display.setContrast(50);
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display.display();
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delay(2000);
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display.clearDisplay(); // clears the screen and buffer
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// draw a single pixel
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display.drawPixel(10, 10, WHITE);
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display.display();
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delay(2000);
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display.clearDisplay();
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// draw many lines
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testdrawline();
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display.display();
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delay(2000);
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display.clearDisplay();
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// draw rectangles
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testdrawrect();
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display.display();
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delay(2000);
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display.clearDisplay();
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// draw multiple rectangles
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testfillrect();
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display.display();
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delay(2000);
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display.clearDisplay();
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// draw mulitple circles
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testdrawcircle();
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display.display();
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delay(2000);
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display.clearDisplay();
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// draw a circle, 10 pixel radius
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display.fillCircle(display.width()/2, display.height()/2, 10, WHITE);
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display.display();
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delay(2000);
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display.clearDisplay();
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testdrawroundrect();
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delay(2000);
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display.clearDisplay();
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testfillroundrect();
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delay(2000);
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display.clearDisplay();
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testdrawtriangle();
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delay(2000);
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display.clearDisplay();
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testfilltriangle();
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delay(2000);
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display.clearDisplay();
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// draw the first ~12 characters in the font
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testdrawchar();
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display.display();
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delay(2000);
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display.clearDisplay();
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// draw scrolling text
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testscrolltext();
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delay(2000);
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display.clearDisplay();
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// text display tests
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display.setTextSize(2);
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display.setTextColor(WHITE);
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display.setCursor(0,0);
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display.println((char*)"Hello, world!");
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display.setTextColor(WHITE, BLACK); // 'inverted' text
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display.println((char*)"3.141592");
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.print((char*)"0x");
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display.println((char*)"DEADBEEF");
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display.display();
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delay(2000);
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// rotation example
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display.clearDisplay();
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display.setRotation(1); // rotate 90 degrees counter clockwise, can also use values of 2 and 3 to go further.
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display.setTextSize(1);
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display.setTextColor(WHITE);
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display.setCursor(0,0);
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display.println((char*)"Rotation");
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display.setTextSize(1);
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display.println((char*)"Example!");
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display.display();
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delay(2000);
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// revert back to no rotation
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display.setRotation(0);
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// miniature bitmap display
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display.clearDisplay();
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display.drawBitmap(30, 16, logo16_glcd_bmp, 16, 16, WHITE);
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display.display();
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// invert the display
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display.invertDisplay(true);
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delay(1000);
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display.invertDisplay(false);
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delay(1000);
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// draw a bitmap icon and 'animate' movement
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testdrawbitmap(logo16_glcd_bmp, LOGO16_GLCD_WIDTH, LOGO16_GLCD_HEIGHT);
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}
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}
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