Hello, I´m trying implement canvas widget in to my project, and I can not make it compile.
Compiler is returning this error:
C:\Users\zuzelka.CML\Documents\GitHub\Web_radio\Web_radio\Web_radio.ino: In function 'void setup()':
c:/Users/zuzelka.CML/Dropbox/@Arduino/Arduino/libraries/lvgl/src/draw/lv_draw_buf.h:51:20: error: storage size of 'buf_draw_buff' isn't constant
51 | static uint8_t buf_##name[LV_DRAW_BUF_SIZE(_w, _h, _cf)]; \
| ^~~~
C:\Users\zuzelka.CML\Documents\GitHub\Web_radio\Web_radio\Web_radio.ino:425:3: note: in expansion of macro 'LV_DRAW_BUF_DEFINE_STATIC'
425 | LV_DRAW_BUF_DEFINE_STATIC(draw_buff, CANVAS_FFT_WIDTH, CANVAS_FFT_HEIGHT, LV_COLOR_FORMAT_RGB565);
What MCU/Processor/Board and compiler are you using?
ESP32-S3 with Arduino & LVGL v9.2.2
What do you want to achieve?
Use canvas widget in my project.
What have you tried so far?
I did look at documentation, look at topics here and issues at Github, but did not find solution to my problem.
Code to reproduce
/*Create a buffer for the canvas*/
LV_DRAW_BUF_DEFINE_STATIC(draw_buff, CANVAS_FFT_WIDTH, CANVAS_FFT_HEIGHT, LV_COLOR_FORMAT_RGB565);
LV_DRAW_BUF_INIT_STATIC(draw_buff);
// /*Create a canvas and initialize its palette*/
ui_CanvasFFT = lv_canvas_create(ui_Screen1);
lv_canvas_set_draw_buf(ui_CanvasFFT, &draw_buff);
lv_canvas_fill_bg(ui_CanvasFFT, lv_color_hex3(0xccc), LV_OPA_COVER);
lv_obj_center(ui_CanvasFFT);
lv_layer_t layer;
lv_canvas_init_layer(ui_CanvasFFT, &layer);
lv_canvas_finish_layer(ui_CanvasFFT, &layer);
Whole code of my project can be seen here.
Does anybody encountered similar issue?
Many thanks for any help.
