/*
 Font draw speed and flicker test, draws all numbers 0-999 in each font
 (0-99 in font 8)
 Average time in milliseconds to draw a character is shown in red
 A total of 2890 characters are drawn in each font (190 in font 8)
 
 Needs fonts 2, 4, 6, 7 and 8

 Make sure all the required fonts are loaded by editting the
 User_Setup.h file in the TFT_eSPI library folder.

 If using an UNO or Mega (ATmega328 or ATmega2560 processor) then for best
 performance use the F_AS_T option found in the User_Setup.h file in the
 TFT_eSPI library folder.

 The library uses the hardware SPI pins only:
   For UNO, Nano, Micro Pro ATmega328 based processors
      MOSI = pin 11, SCK = pin 13
   For Mega:
      MOSI = pin 51, SCK = pin 52

 The pins used for the TFT chip select (CS) and Data/command (DC) and Reset (RST)
 signal lines to the TFT must also be defined in the library User_Setup.h file.

 Sugested TFT connections for UNO and Atmega328 based boards
   sclk 13  // Don't change, this is the hardware SPI SCLK line
   mosi 11  // Don't change, this is the hardware SPI MOSI line
   cs   10  // Chip select for TFT display
   dc   9   // Data/command line
   rst  7   // Reset, you could connect this to the Arduino reset pin

 Suggested TFT connections for the MEGA and ATmega2560 based boards
   sclk 52  // Don't change, this is the hardware SPI SCLK line
   mosi 51  // Don't change, this is the hardware SPI MOSI line
   cs   47  // TFT chip select line
   dc   48  // TFT data/command line
   rst  44  // you could alternatively connect this to the Arduino reset

  #########################################################################
  ###### DON'T FORGET TO UPDATE THE User_Setup.h FILE IN THE LIBRARY ######
  ######       TO SELECT THE FONTS AND PINS YOU USE, SEE ABOVE       ######
  #########################################################################
 */


#include <TFT_eSPI.h> // Graphics and font library for ILI9341 driver chip
#include <SPI.h>

TFT_eSPI tft = TFT_eSPI();  // Invoke library, pins defined in User_Setup.h

unsigned long drawTime = 0;

void setup(void) {
  tft.init();
  tft.setRotation(1);
}

void loop() {

  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);

  drawTime = millis();

  for (int i = 0; i < 1000; i++) {
    tft.drawNumber(i, 0, 0, 1);
  }

  drawTime = millis() - drawTime;

  tft.setTextColor(TFT_RED, TFT_BLACK);
  tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
  if (drawTime < 100) tft.drawString("Font 1 not loaded!", 0, 108, 2);
  
  delay(4000);
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
    drawTime = millis();

  for (int i = 0; i < 1000; i++) {
    tft.drawNumber(i, 0, 0, 2);
  }

  drawTime = millis() - drawTime;

  tft.setTextColor(TFT_RED, TFT_BLACK);
  tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
  if (drawTime < 200) tft.drawString("Font 2 not loaded!", 0, 108, 2);
  
  delay(4000);
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
    drawTime = millis();

  for (int i = 0; i < 1000; i++) {
    tft.drawNumber(i, 0, 0, 4);
  }

  drawTime = millis() - drawTime;

  tft.setTextColor(TFT_RED, TFT_BLACK);
  tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
  if (drawTime < 200) tft.drawString("Font 4 not loaded!", 0, 108, 2);
  
  delay(4000);
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
    drawTime = millis();

  for (int i = 0; i < 1000; i++) {
    tft.drawNumber(i, 0, 0, 6);
  }

  drawTime = millis() - drawTime;

  tft.setTextColor(TFT_RED, TFT_BLACK);
  tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
  if (drawTime < 200) tft.drawString("Font 6 not loaded!", 0, 108, 2);
  
  delay(4000);
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
    drawTime = millis();

  for (int i = 0; i < 1000; i++) {
    tft.drawNumber(i, 0, 0, 7);
  }

  drawTime = millis() - drawTime;

  tft.setTextColor(TFT_RED, TFT_BLACK);
  tft.drawFloat(drawTime / 2890.0, 3, 0, 80, 4);
  if (drawTime < 200) tft.drawString("Font 7 not loaded!", 0, 108, 2);
  
  delay(4000);
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE, TFT_BLACK);
    drawTime = millis();

  for (int i = 0; i < 100; i++) {
    tft.drawNumber(i, 0, 0, 8);
  }

  drawTime = millis() - drawTime;

  tft.setTextColor(TFT_RED, TFT_BLACK);
  tft.drawFloat(drawTime / 190.0, 3, 0, 80, 4);
  if (drawTime < 200) tft.drawString("Font 8 not loaded!", 0, 108, 2);
  
  delay(4000);
}