mirror of
https://github.com/justcallmekoko/ESP32Marauder.git
synced 2025-12-12 15:50:36 -08:00
Added Marauder source
This commit is contained in:
Just Call Me Koko
457
esp32_marauder/Display.cpp
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457
esp32_marauder/Display.cpp
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#include "Display.h"
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/*
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Big thanks to bodmer for having great TFT and JPEG libraries
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https://github.com/bodmer
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*/
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Display::Display()
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{
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//Serial.println("Initializing Display Object...");
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}
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void Display::main()
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{
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return;
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}
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// Function to prepare the display and the menus
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void Display::RunSetup()
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{
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run_setup = false;
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// Need to declare new
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display_buffer = new SimpleList<String>();
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tft.init();
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tft.setRotation(0); // Portrait
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tft.setCursor(0, 0);
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//tft.setFreeFont(&FreeMonoBold9pt7b);
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// Calibration data
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//uint16_t calData[5] = { 390, 3516, 253, 3520, 7 }; tft.setRotation(1); // Portrait
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uint16_t calData[5] = { 275, 3494, 361, 3528, 4 }; // tft.setRotation(0); // Portrait
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tft.setTouch(calData);
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//tft.fillScreen(TFT_BLACK);
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clearScreen();
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// Initialize file system
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// This should probably have its own class
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if (!SPIFFS.begin()) {
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Serial.println("SPIFFS initialisation failed!");
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while (1) yield(); // Stay here twiddling thumbs waiting
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}
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//Serial.println("\r\nInitialisation done.");
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//listFiles(); // Lists the files so you can see what is in the SPIFFS
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// Draw the title screen
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drawJpeg("/marauder3L.jpg", 0 , 0); // 240 x 320 image
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//showCenterText(version_number, 250);
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tft.drawCentreString(version_number, 120, 250, 2);
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digitalWrite(TFT_BL, HIGH);
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delay(5000);
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}
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// Function to just draw the screen black
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void Display::clearScreen()
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{
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Serial.println("clearScreen()");
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tft.fillScreen(TFT_BLACK);
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tft.setCursor(0, 0);
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}
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void Display::displayBuffer(bool do_clear)
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{
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if (this->display_buffer->size() > 0)
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{
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delay(1);
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while (display_buffer->size() > 0)
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{
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xPos = 0;
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//yDraw = scroll_line(TFT_RED);
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//tft.setCursor(xPos, yDraw);
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//tft.print(display_buffer->shift());
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//tft.print(display_buffer->get(0));
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if ((display_buffer->size() > 0) && (!loading))
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{
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//tft.print(display_buffer->pop());
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printing = true;
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delay(print_delay_1);
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yDraw = scroll_line(TFT_RED);
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tft.setCursor(xPos, yDraw);
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tft.print(display_buffer->shift());
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printing = false;
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delay(print_delay_2);
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//display_buffer->remove(0);
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}
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blank[(18+(yStart - TOP_FIXED_AREA) / TEXT_HEIGHT)%19] = xPos;
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}
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/*
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while (display_buffer->get(0) != "")
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{
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Serial.println("Printing");
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delay(10);
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xPos = 0;
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yDraw = scroll_line(TFT_RED);
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tft.setCursor(xPos, yDraw);
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if (display_buffer->get(0) != "")
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{
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tft.print(display_buffer->get(0));
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display_buffer->replace(0, "");
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}
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blank[(18+(yStart - TOP_FIXED_AREA) / TEXT_HEIGHT)%19] = xPos;
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}
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*/
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}
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}
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void Display::showCenterText(String text, int y)
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{
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tft.setCursor((SCREEN_WIDTH - (text.length() * 6)) / 2, y);
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tft.println(text);
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}
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void Display::initScrollValues()
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{
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Serial.println("initScrollValues()");
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yDraw = YMAX - BOT_FIXED_AREA - TEXT_HEIGHT;
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xPos = 0;
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yStart = TOP_FIXED_AREA;
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yArea = YMAX - TOP_FIXED_AREA - BOT_FIXED_AREA;
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for(int i = 0; i < 18; i++) blank[i] = 0;
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}
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// Function to execute hardware scroll for TFT screen
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int Display::scroll_line(uint32_t color) {
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//Serial.println("scroll_line()");
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int yTemp = yStart; // Store the old yStart, this is where we draw the next line
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// Use the record of line lengths to optimise the rectangle size we need to erase the top line
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tft.fillRect(0,yStart,blank[(yStart-TOP_FIXED_AREA)/TEXT_HEIGHT],TEXT_HEIGHT, color);
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// Change the top of the scroll area
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yStart+=TEXT_HEIGHT;
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// The value must wrap around as the screen memory is a circular buffer
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if (yStart >= YMAX - BOT_FIXED_AREA) yStart = TOP_FIXED_AREA + (yStart - YMAX + BOT_FIXED_AREA);
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// Now we can scroll the display
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scrollAddress(yStart);
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return yTemp;
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}
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// Function to setup hardware scroll for TFT screen
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void Display::setupScrollArea(uint16_t tfa, uint16_t bfa) {
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Serial.println("setupScrollAread()");
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tft.writecommand(ILI9341_VSCRDEF); // Vertical scroll definition
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tft.writedata(tfa >> 8); // Top Fixed Area line count
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tft.writedata(tfa);
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tft.writedata((YMAX-tfa-bfa)>>8); // Vertical Scrolling Area line count
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tft.writedata(YMAX-tfa-bfa);
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tft.writedata(bfa >> 8); // Bottom Fixed Area line count
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tft.writedata(bfa);
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}
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void Display::scrollAddress(uint16_t vsp) {
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tft.writecommand(ILI9341_VSCRSADD); // Vertical scrolling pointer
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tft.writedata(vsp>>8);
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tft.writedata(vsp);
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}
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// JPEG_functions
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void Display::drawJpeg(const char *filename, int xpos, int ypos) {
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//Serial.println("===========================");
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//Serial.print("Drawing file: "); Serial.println(filename);
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//Serial.println("===========================");
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// Open the named file (the Jpeg decoder library will close it after rendering image)
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fs::File jpegFile = SPIFFS.open( filename, "r"); // File handle reference for SPIFFS
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// File jpegFile = SD.open( filename, FILE_READ); // or, file handle reference for SD library
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//ESP32 always seems to return 1 for jpegFile so this null trap does not work
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if ( !jpegFile ) {
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Serial.print("ERROR: File \""); Serial.print(filename); Serial.println ("\" not found!");
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return;
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}
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// Use one of the three following methods to initialise the decoder,
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// the filename can be a String or character array type:
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//boolean decoded = JpegDec.decodeFsFile(jpegFile); // Pass a SPIFFS file handle to the decoder,
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//boolean decoded = JpegDec.decodeSdFile(jpegFile); // or pass the SD file handle to the decoder,
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boolean decoded = JpegDec.decodeFsFile(filename); // or pass the filename (leading / distinguishes SPIFFS files)
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if (decoded) {
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// print information about the image to the serial port
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jpegInfo();
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// render the image onto the screen at given coordinates
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jpegRender(xpos, ypos);
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}
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else {
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Serial.println("Jpeg file format not supported!");
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}
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}
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//====================================================================================
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// Decode and render the Jpeg image onto the TFT screen
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//====================================================================================
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void Display::jpegRender(int xpos, int ypos) {
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// retrieve infomration about the image
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uint16_t *pImg;
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int16_t mcu_w = JpegDec.MCUWidth;
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int16_t mcu_h = JpegDec.MCUHeight;
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int32_t max_x = JpegDec.width;
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int32_t max_y = JpegDec.height;
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// Jpeg images are draw as a set of image block (tiles) called Minimum Coding Units (MCUs)
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// Typically these MCUs are 16x16 pixel blocks
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// Determine the width and height of the right and bottom edge image blocks
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int32_t min_w = minimum(mcu_w, max_x % mcu_w);
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int32_t min_h = minimum(mcu_h, max_y % mcu_h);
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// save the current image block size
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int32_t win_w = mcu_w;
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int32_t win_h = mcu_h;
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// record the current time so we can measure how long it takes to draw an image
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uint32_t drawTime = millis();
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// save the coordinate of the right and bottom edges to assist image cropping
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// to the screen size
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max_x += xpos;
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max_y += ypos;
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// read each MCU block until there are no more
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while ( JpegDec.readSwappedBytes()) { // Swapped byte order read
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// save a pointer to the image block
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pImg = JpegDec.pImage;
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// calculate where the image block should be drawn on the screen
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int mcu_x = JpegDec.MCUx * mcu_w + xpos; // Calculate coordinates of top left corner of current MCU
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int mcu_y = JpegDec.MCUy * mcu_h + ypos;
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// check if the image block size needs to be changed for the right edge
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if (mcu_x + mcu_w <= max_x) win_w = mcu_w;
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else win_w = min_w;
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// check if the image block size needs to be changed for the bottom edge
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if (mcu_y + mcu_h <= max_y) win_h = mcu_h;
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else win_h = min_h;
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// copy pixels into a contiguous block
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if (win_w != mcu_w)
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{
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for (int h = 1; h < win_h-1; h++)
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{
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memcpy(pImg + h * win_w, pImg + (h + 1) * mcu_w, win_w << 1);
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}
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}
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// draw image MCU block only if it will fit on the screen
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if ( mcu_x < tft.width() && mcu_y < tft.height())
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{
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// Now push the image block to the screen
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tft.pushImage(mcu_x, mcu_y, win_w, win_h, pImg);
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}
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else if ( ( mcu_y + win_h) >= tft.height()) JpegDec.abort();
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}
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// calculate how long it took to draw the image
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drawTime = millis() - drawTime; // Calculate the time it took
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// print the results to the serial port
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//Serial.print ("Total render time was : "); Serial.print(drawTime); Serial.println(" ms");
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//Serial.println("=====================================");
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}
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//====================================================================================
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// Print information decoded from the Jpeg image
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//====================================================================================
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void Display::jpegInfo() {
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/*
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Serial.println("===============");
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Serial.println("JPEG image info");
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Serial.println("===============");
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Serial.print ("Width :"); Serial.println(JpegDec.width);
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Serial.print ("Height :"); Serial.println(JpegDec.height);
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Serial.print ("Components :"); Serial.println(JpegDec.comps);
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Serial.print ("MCU / row :"); Serial.println(JpegDec.MCUSPerRow);
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Serial.print ("MCU / col :"); Serial.println(JpegDec.MCUSPerCol);
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Serial.print ("Scan type :"); Serial.println(JpegDec.scanType);
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Serial.print ("MCU width :"); Serial.println(JpegDec.MCUWidth);
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Serial.print ("MCU height :"); Serial.println(JpegDec.MCUHeight);
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Serial.println("===============");
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Serial.println("");
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*/
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}
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//====================================================================================
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// Open a Jpeg file and send it to the Serial port in a C array compatible format
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//====================================================================================
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void createArray(const char *filename) {
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// Open the named file
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fs::File jpgFile = SPIFFS.open( filename, "r"); // File handle reference for SPIFFS
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// File jpgFile = SD.open( filename, FILE_READ); // or, file handle reference for SD library
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if ( !jpgFile ) {
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Serial.print("ERROR: File \""); Serial.print(filename); Serial.println ("\" not found!");
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return;
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}
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uint8_t data;
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byte line_len = 0;
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Serial.println("");
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Serial.println("// Generated by a JPEGDecoder library example sketch:");
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Serial.println("// https://github.com/Bodmer/JPEGDecoder");
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Serial.println("");
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Serial.println("#if defined(__AVR__)");
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Serial.println(" #include <avr/pgmspace.h>");
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Serial.println("#endif");
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Serial.println("");
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Serial.print ("const uint8_t ");
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while (*filename != '.') Serial.print(*filename++);
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Serial.println("[] PROGMEM = {"); // PROGMEM added for AVR processors, it is ignored by Due
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while ( jpgFile.available()) {
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data = jpgFile.read();
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Serial.print("0x"); if (abs(data) < 16) Serial.print("0");
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Serial.print(data, HEX); Serial.print(",");// Add value and comma
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line_len++;
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if ( line_len >= 32) {
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line_len = 0;
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Serial.println();
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}
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}
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Serial.println("};\r\n");
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jpgFile.close();
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}
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// End JPEG_functions
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// SPIFFS_functions
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#ifdef ESP8266
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void Display::listFiles(void) {
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Serial.println();
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Serial.println("SPIFFS files found:");
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fs::Dir dir = SPIFFS.openDir("/"); // Root directory
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String line = "=====================================";
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Serial.println(line);
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Serial.println(" File name Size");
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Serial.println(line);
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while (dir.next()) {
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String fileName = dir.fileName();
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Serial.print(fileName);
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int spaces = 21 - fileName.length(); // Tabulate nicely
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while (spaces--) Serial.print(" ");
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fs::File f = dir.openFile("r");
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String fileSize = (String) f.size();
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spaces = 10 - fileSize.length(); // Tabulate nicely
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while (spaces--) Serial.print(" ");
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Serial.println(fileSize + " bytes");
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}
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Serial.println(line);
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Serial.println();
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delay(1000);
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}
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#endif
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//====================================================================================
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#ifdef ESP32
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void Display::listFiles(void) {
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listDir(SPIFFS, "/", 0);
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}
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void Display::listDir(fs::FS &fs, const char * dirname, uint8_t levels) {
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Serial.println();
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Serial.println("SPIFFS files found:");
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Serial.printf("Listing directory: %s\n", "/");
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String line = "=====================================";
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Serial.println(line);
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Serial.println(" File name Size");
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Serial.println(line);
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fs::File root = fs.open(dirname);
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if (!root) {
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Serial.println("Failed to open directory");
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return;
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}
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if (!root.isDirectory()) {
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Serial.println("Not a directory");
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return;
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}
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fs::File file = root.openNextFile();
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while (file) {
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if (file.isDirectory()) {
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Serial.print("DIR : ");
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String fileName = file.name();
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Serial.print(fileName);
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if (levels) {
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listDir(fs, file.name(), levels - 1);
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}
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} else {
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String fileName = file.name();
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Serial.print(" " + fileName);
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int spaces = 20 - fileName.length(); // Tabulate nicely
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while (spaces--) Serial.print(" ");
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String fileSize = (String) file.size();
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spaces = 10 - fileSize.length(); // Tabulate nicely
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while (spaces--) Serial.print(" ");
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Serial.println(fileSize + " bytes");
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}
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file = root.openNextFile();
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}
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Serial.println(line);
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Serial.println();
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delay(1000);
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}
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#endif
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// End SPIFFS_functions
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