/*******************************************************************************
  * LVGL Benchmark
  * This is a benchmark demo for LVGL - Light and Versatile Graphics Library
  * import from: https://github.com/lvgl/lv_demos.git
  *
  * Dependent libraries:
  * LVGL: https://github.com/lvgl/lvgl.git
  *
  * LVGL Configuration file:
  * Copy your_arduino_path/libraries/lvgl/lv_conf_template.h
  * to your_arduino_path/libraries/lv_conf.h
  * 
  * In lv_conf.h around line 15, enable config file:
  * #if 1 // Set it to "1" to enable content
  * 
  * Then find and set:
  * #define LV_COLOR_DEPTH     16
  * #define LV_TICK_CUSTOM     1
  *
  * For SPI/parallel 8 display set color swap can be faster, parallel 16/RGB screen don't swap!
  * #define LV_COLOR_16_SWAP   1 // for SPI and parallel 8
  * #define LV_COLOR_16_SWAP   0 // for parallel 16 and RGB
  *
  * Enable LVGL Demo Benchmark
  * #define LV_USE_DEMO_BENCHMARK 1
  *
  * Enables support for compressed fonts.
  * #define LV_USE_FONT_COMPRESSED 1
  ******************************************************************************/
 #include "lv_demo_benchmark.h"
 
 /*******************************************************************************
  * Start of Arduino_GFX setting
  *
  * Arduino_GFX try to find the settings depends on selected board in Arduino IDE
  * Or you can define the display dev kit not in the board list
  * Defalult pin list for non display dev kit:
  * Arduino Nano, Micro and more: CS:  9, DC:  8, RST:  7, BL:  6, SCK: 13, MOSI: 11, MISO: 12
  * ESP32 various dev board     : CS:  5, DC: 27, RST: 33, BL: 22, SCK: 18, MOSI: 23, MISO: nil
  * ESP32-C3 various dev board  : CS:  7, DC:  2, RST:  1, BL:  3, SCK:  4, MOSI:  6, MISO: nil
  * ESP32-S2 various dev board  : CS: 34, DC: 38, RST: 33, BL: 21, SCK: 36, MOSI: 35, MISO: nil
  * ESP32-S3 various dev board  : CS: 40, DC: 41, RST: 42, BL: 48, SCK: 36, MOSI: 35, MISO: nil
  * ESP8266 various dev board   : CS: 15, DC:  4, RST:  2, BL:  5, SCK: 14, MOSI: 13, MISO: 12
  * Raspberry Pi Pico dev board : CS: 17, DC: 27, RST: 26, BL: 28, SCK: 18, MOSI: 19, MISO: 16
  * RTL8720 BW16 old patch core : CS: 18, DC: 17, RST:  2, BL: 23, SCK: 19, MOSI: 21, MISO: 20
  * RTL8720_BW16 Official core  : CS:  9, DC:  8, RST:  6, BL:  3, SCK: 10, MOSI: 12, MISO: 11
  * RTL8722 dev board           : CS: 18, DC: 17, RST: 22, BL: 23, SCK: 13, MOSI: 11, MISO: 12
  * RTL8722_mini dev board      : CS: 12, DC: 14, RST: 15, BL: 13, SCK: 11, MOSI:  9, MISO: 10
  * Seeeduino XIAO dev board    : CS:  3, DC:  2, RST:  1, BL:  0, SCK:  8, MOSI: 10, MISO:  9
  * Teensy 4.1 dev board        : CS: 39, DC: 41, RST: 40, BL: 22, SCK: 13, MOSI: 11, MISO: 12
  ******************************************************************************/
 #include <Arduino_GFX_Library.h>
 
 #define GFX_BL DF_GFX_BL // default backlight pin, you may replace DF_GFX_BL to actual backlight pin
 
 /* More dev device declaration: https://github.com/moononournation/Arduino_GFX/wiki/Dev-Device-Declaration */
 #if defined(DISPLAY_DEV_KIT)
 Arduino_GFX *gfx = create_default_Arduino_GFX();
 #else /* !defined(DISPLAY_DEV_KIT) */
 
 /* More data bus class: https://github.com/moononournation/Arduino_GFX/wiki/Data-Bus-Class */
 Arduino_DataBus *bus = create_default_Arduino_DataBus();
 
 /* More display class: https://github.com/moononournation/Arduino_GFX/wiki/Display-Class */
 Arduino_GFX *gfx = new Arduino_ILI9341(bus, DF_GFX_RST, 0 /* rotation */, false /* IPS */);
 
 #endif /* !defined(DISPLAY_DEV_KIT) */
 /*******************************************************************************
  * End of Arduino_GFX setting
  ******************************************************************************/
 
 /*******************************************************************************
  * Please config the touch panel in touch.h
  ******************************************************************************/
 #include "touch.h"
 
 /* Change to your screen resolution */
 static uint32_t screenWidth;
 static uint32_t screenHeight;
 static lv_disp_draw_buf_t draw_buf;
 static lv_color_t *disp_draw_buf;
 static lv_disp_drv_t disp_drv;
 static unsigned long last_ms;
 
 /* Display flushing */
 void my_disp_flush(lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p)
 {
   uint32_t w = (area->x2 - area->x1 + 1);
   uint32_t h = (area->y2 - area->y1 + 1);
 
 #if (LV_COLOR_16_SWAP != 0)
   gfx->draw16bitBeRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
 #else
   gfx->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
 #endif
 
   lv_disp_flush_ready(disp);
 }
 
 void my_touchpad_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
 {
   if (touch_has_signal())
   {
     if (touch_touched())
     {
       data->state = LV_INDEV_STATE_PR;
 
       /*Set the coordinates*/
       data->point.x = touch_last_x;
       data->point.y = touch_last_y;
     }
     else if (touch_released())
     {
       data->state = LV_INDEV_STATE_REL;
     }
   }
   else
   {
     data->state = LV_INDEV_STATE_REL;
   }
 }
 
 void setup()
 {
   Serial.begin(115200);
   // Serial.setDebugOutput(true);
   // while(!Serial);
   Serial.println("LVGL Benchmark Demo");
 
 #ifdef GFX_EXTRA_PRE_INIT
   GFX_EXTRA_PRE_INIT();
 #endif
 
   // Init Display
   gfx->begin();
   gfx->fillScreen(BLACK);
 
 #ifdef GFX_BL
   pinMode(GFX_BL, OUTPUT);
   digitalWrite(GFX_BL, HIGH);
 #endif
 
   // Init touch device
   touch_init(gfx->width(), gfx->height(), gfx->getRotation());
 
   lv_init();
 
   screenWidth = gfx->width();
   screenHeight = gfx->height();
 #ifdef ESP32
   disp_draw_buf = (lv_color_t *)heap_caps_malloc(sizeof(lv_color_t) * screenWidth * 32, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
 #else
   disp_draw_buf = (lv_color_t *)malloc(sizeof(lv_color_t) * screenWidth * 32);
 #endif
   if (!disp_draw_buf)
   {
     Serial.println("LVGL disp_draw_buf allocate failed!");
   }
   else
   {
     lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, screenWidth * 32);
 
     /* Initialize the display */
     lv_disp_drv_init(&disp_drv);
     /* Change the following line to your display resolution */
     disp_drv.hor_res = screenWidth;
     disp_drv.ver_res = screenHeight;
     disp_drv.flush_cb = my_disp_flush;
     disp_drv.draw_buf = &draw_buf;
     lv_disp_drv_register(&disp_drv);
 
     /* Initialize the (dummy) input device driver */
     static lv_indev_drv_t indev_drv;
     lv_indev_drv_init(&indev_drv);
     indev_drv.type = LV_INDEV_TYPE_POINTER;
     indev_drv.read_cb = my_touchpad_read;
     lv_indev_drv_register(&indev_drv);
 
     lv_demo_benchmark();
 
     Serial.println("Setup done");
   }
   last_ms = millis();
 }
 
 void loop()
 {
   lv_timer_handler(); /* let the GUI do its work */
   delay(5);
 }

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