B4R Question LVGL Library

A

astronald

Active Member
Licensed User
Longtime User
Has anyone run this library?
Does the wrapper exists?

I try with arduino inline c code but not success.

Thanks for your help
Ronald Camacho.
 
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C

candide

Active Member
Licensed User
this library, it is 72 widgets and each widget have multiples h files ans each h file need a wrapper ! ! !

not sure a global wrapper can be done . . .
 
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A

astronald

Active Member
Licensed User
Longtime User
With this code in Arduino IDE It works properly,
Arduino: 
#include <Arduino_GFX_Library.h>
#include <lvgl.h>
#include <demos/lv_demos.h>
#include <Wire.h>
#include <TAMC_GT911.h>

#define TOUCH_GT911
#define TOUCH_GT911_SCL 20
#define TOUCH_GT911_SDA 19
#define TOUCH_GT911_INT -1
#define TOUCH_GT911_RST 38
#define TOUCH_GT911_ROTATION ROTATION_NORMAL
#define TOUCH_MAP_X1 480
#define TOUCH_MAP_X2 0
#define TOUCH_MAP_Y1 272
#define TOUCH_MAP_Y2 0
#define TFT_BL 2
#define GFX_BL DF_GFX_BL

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;


int touch_last_x = 0, touch_last_y = 0;
TAMC_GT911 ts = TAMC_GT911(TOUCH_GT911_SDA, TOUCH_GT911_SCL, TOUCH_GT911_INT, TOUCH_GT911_RST, max(TOUCH_MAP_X1, TOUCH_MAP_X2), max(TOUCH_MAP_Y1, TOUCH_MAP_Y2));
Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(GFX_NOT_DEFINED, GFX_NOT_DEFINED, GFX_NOT_DEFINED, 40, 41, 39, 42, 45, 48, 47, 21, 14, 5, 6, 7, 15, 16, 4, 8, 3, 46, 9, 1);
Arduino_RPi_DPI_RGBPanel *gfx = new Arduino_RPi_DPI_RGBPanel( bus, 800, 0, 8, 4, 8, 480, 0, 8, 4, 8, 1, 16000000, true);

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);
  gfx->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
  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;
      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 touch_init()
{
  Wire.begin(TOUCH_GT911_SDA, TOUCH_GT911_SCL);
  ts.begin();
  ts.setRotation(TOUCH_GT911_ROTATION);
}

bool touch_has_signal()
{
  return true;
}

bool touch_touched()
{
  ts.read();
  if (ts.isTouched)
  {
    touch_last_x = map(ts.points[0].x, TOUCH_MAP_X1, TOUCH_MAP_X2, 0, gfx->width() - 1);
    touch_last_y = map(ts.points[0].y, TOUCH_MAP_Y1, TOUCH_MAP_Y2, 0, gfx->height() - 1);
    return true;
  }
  else
  {
    return false;
  }
}

bool touch_released()
{
  return true;
}

void setup()
{
  gfx->begin();
  pinMode(TFT_BL, OUTPUT);
  digitalWrite(TFT_BL, HIGH);
  gfx->fillScreen(RED);
  delay(500);
  gfx->fillScreen(GREEN);
  delay(500);
  gfx->fillScreen(BLUE);
  delay(500);
  gfx->fillScreen(BLACK);
  delay(500);
  lv_init();
  delay(10);
  touch_init();
  screenWidth = gfx->width();
  screenHeight = gfx->height();
  disp_draw_buf = (lv_color_t *)heap_caps_malloc(sizeof(lv_color_t) * screenWidth * screenHeight/4 , MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
  if (disp_draw_buf)
  {
    lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, screenWidth * screenHeight/4);
    lv_disp_drv_init(&disp_drv);
    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);
    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_widgets();
  }
 
}

void loop() {
  lv_timer_handler(); /* let the GUI do its work */
  delay(5);
}


but when trying to move to B4r

B4R: 
Sub Process_Globals
    Public Serial1 As Serial
End Sub

Private Sub AppStart
    Serial1.Initialize(115200)
    RunNative("init", Null) 
    Log("AppStart")

End Sub


#IF C
#include <Arduino_GFX_Library.h>
#include <lvgl.h>
#include <demos/lv_demos.h>
#include <Wire.h>
#include <TAMC_GT911.h>

#define TOUCH_GT911
#define TOUCH_GT911_SCL 20
#define TOUCH_GT911_SDA 19
#define TOUCH_GT911_INT -1
#define TOUCH_GT911_RST 38
#define TOUCH_GT911_ROTATION ROTATION_NORMAL
#define TOUCH_MAP_X1 480
#define TOUCH_MAP_X2 0
#define TOUCH_MAP_Y1 272
#define TOUCH_MAP_Y2 0
#define TFT_BL 2
#define GFX_BL DF_GFX_BL

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;

int touch_last_x = 0, touch_last_y = 0;
TAMC_GT911 ts = TAMC_GT911(TOUCH_GT911_SDA, TOUCH_GT911_SCL, TOUCH_GT911_INT, TOUCH_GT911_RST, max(TOUCH_MAP_X1, TOUCH_MAP_X2), max(TOUCH_MAP_Y1, TOUCH_MAP_Y2));
Arduino_ESP32RGBPanel *bus = new Arduino_ESP32RGBPanel(GFX_NOT_DEFINED, GFX_NOT_DEFINED, GFX_NOT_DEFINED, 40, 41, 39, 42, 45, 48, 47, 21, 14, 5, 6, 7, 15, 16, 4, 8, 3, 46, 9, 1);
Arduino_RPi_DPI_RGBPanel *gfx = new Arduino_RPi_DPI_RGBPanel( bus, 800, 0, 8, 4, 8, 480, 0, 8, 4, 8, 1, 16000000, true);

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);
  gfx->draw16bitRGBBitmap(area->x1, area->y1, (uint16_t *)&color_p->full, w, h);
  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;
      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 touch_init()
{
  Wire.begin(TOUCH_GT911_SDA, TOUCH_GT911_SCL);
  ts.begin();
  ts.setRotation(TOUCH_GT911_ROTATION);
}

bool touch_has_signal()
{
  return true;
}

bool touch_touched()
{
  ts.read();
  if (ts.isTouched)
  {
    touch_last_x = map(ts.points[0].x, TOUCH_MAP_X1, TOUCH_MAP_X2, 0, gfx->width() - 1);
    touch_last_y = map(ts.points[0].y, TOUCH_MAP_Y1, TOUCH_MAP_Y2, 0, gfx->height() - 1);
    return true;
  }
  else
  {
    return false;
  }
}

bool touch_released()
{
  return true;
}

void init(B4R::Object* unused)
{
  gfx->begin();
  pinMode(TFT_BL, OUTPUT);
  digitalWrite(TFT_BL, HIGH);
  gfx->fillScreen(RED);
  delay(500);
  gfx->fillScreen(GREEN);
  delay(500);
  gfx->fillScreen(BLUE);
  delay(500);
  gfx->fillScreen(BLACK);
  delay(500);
  lv_init();
  delay(10);
  touch_init();
  screenWidth = gfx->width();
  screenHeight = gfx->height();
  disp_draw_buf = (lv_color_t *)heap_caps_malloc(sizeof(lv_color_t) * screenWidth * screenHeight/4 , MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
  if (disp_draw_buf)
  {
    lv_disp_draw_buf_init(&draw_buf, disp_draw_buf, NULL, screenWidth * screenHeight/4);
    lv_disp_drv_init(&disp_drv);
    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);
    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_widgets();
  }
 
}
#End If

i get this error:
B4R Error: 
C:\Users\corre\OneDrive\ESCRIT~1\PRUEBA~1\Objects\src\b4r_main.cpp: In function 'void my_touchpad_read(lv_indev_drv_t*, lv_indev_data_t*)':
b4r_main.cpp:47:7: error: 'touch_has_signal' was not declared in this scope
   if (touch_has_signal())
       ^~~~~~~~~~~~~~~~
C:\Users\corre\OneDrive\ESCRIT~1\PRUEBA~1\Objects\src\b4r_main.cpp:47:7: note: suggested alternative: 'touch_last_y'
   if (touch_has_signal())
       ^~~~~~~~~~~~~~~~
       touch_last_y
b4r_main.cpp:49:9: error: 'touch_touched' was not declared in this scope
     if (touch_touched())
         ^~~~~~~~~~~~~
C:\Users\corre\OneDrive\ESCRIT~1\PRUEBA~1\Objects\src\b4r_main.cpp:49:9: note: suggested alternative: 'touchSetCycles'
     if (touch_touched())
         ^~~~~~~~~~~~~
         touchSetCycles
b4r_main.cpp:55:14: error: 'touch_released' was not declared in this scope
     else if (touch_released())
              ^~~~~~~~~~~~~~
C:\Users\corre\OneDrive\ESCRIT~1\PRUEBA~1\Objects\src\b4r_main.cpp:55:14: note: suggested alternative: '_lock_release'
     else if (touch_released())
              ^~~~~~~~~~~~~~
              _lock_release
exit status 1

I can´t see error,
I appreciate any help!
 
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