Lv_tick_set_cb(), using the FreeRTOS version causes animations to be extremely laggy

Hey people!

I was trying to port my Esp32-S3 T-display project to LVGL v9, was coming from v8.3, and after solving any conflicts that the new version caused in the code i noticed that the animations, screen transitions and the animation that shows the button that was pressed, was extremely low fps.

I activated the Sysmon to show the fps and memory usage but the values were normal, fps constantly at +60fps, i tried change every paramater in lv_conf.h but without success,

i was reading new posts in the forum and cam across with that comment.

Basically the code gave me an idea to change the tick source.

changed from:

lv_tick_set_cb(vTaskGetTickCount);

To:

 static auto tick_get_cb = []() -> uint32_t {
     return esp_timer_get_time() / 1000ULL;
 };

 lv_tick_set_cb(tick_get_cb);

And worked perfectly fine as v8.3.

Now, i dont know if the config i set about the OS is wrong or the FreeRTOS tick interface is really slow.

This is my lv conf file:

/**
 * @file lv_conf.h
 * Configuration file for v9.1.0
 */

/*
 * Copy this file as `lv_conf.h`
 * 1. simply next to the `lvgl` folder
 * 2. or any other places and
 *    - define `LV_CONF_INCLUDE_SIMPLE`
 *    - add the path as include path
 */

/* clang-format off */
#if 1 /*Set it to "1" to enable content*/

/**
 * @file lv_conf.h
 * Configuration file for v9.1.0
 */

/*
 * Copy this file as `lv_conf.h`
 * 1. simply next to the `lvgl` folder
 * 2. or any other places and
 *    - define `LV_CONF_INCLUDE_SIMPLE`
 *    - add the path as include path
 */

/* clang-format off */

#ifndef LV_CONF_H
#define LV_CONF_H


/*====================
   COLOR SETTINGS
 *====================*/

/*Color depth: 8 (A8), 16 (RGB565), 24 (RGB888), 32 (XRGB8888)*/
#define LV_COLOR_DEPTH 16

/*=========================
   STDLIB WRAPPER SETTINGS
 *=========================*/

/* Possible values
 * - LV_STDLIB_BUILTIN:     LVGL's built in implementation
 * - LV_STDLIB_CLIB:        Standard C functions, like malloc, strlen, etc
 * - LV_STDLIB_MICROPYTHON: MicroPython implementation
 * - LV_STDLIB_RTTHREAD:    RT-Thread implementation
 * - LV_STDLIB_CUSTOM:      Implement the functions externally
 */
#define LV_USE_STDLIB_MALLOC    LV_STDLIB_CLIB
#define LV_USE_STDLIB_STRING    LV_STDLIB_CLIB
#define LV_USE_STDLIB_SPRINTF   LV_STDLIB_CLIB


#if LV_USE_STDLIB_MALLOC == LV_STDLIB_BUILTIN
    /*Size of the memory available for `lv_malloc()` in bytes (>= 2kB)*/
    #define LV_MEM_SIZE (64 * 1024U)          /*[bytes]*/

    /*Size of the memory expand for `lv_malloc()` in bytes*/
    #define LV_MEM_POOL_EXPAND_SIZE 0

    /*Set an address for the memory pool instead of allocating it as a normal array. Can be in external SRAM too.*/
    #define LV_MEM_ADR 0     /*0: unused*/
    /*Instead of an address give a memory allocator that will be called to get a memory pool for LVGL. E.g. my_malloc*/
    #if LV_MEM_ADR == 0
        #undef LV_MEM_POOL_INCLUDE
        #undef LV_MEM_POOL_ALLOC
    #endif
#endif  /*LV_USE_STDLIB_MALLOC == LV_STDLIB_BUILTIN*/

/*====================
   HAL SETTINGS
 *====================*/

/*Default display refresh, input device read and animation step period.*/
#define LV_DEF_REFR_PERIOD  15      /*[ms]*/

/*Default Dot Per Inch. Used to initialize default sizes such as widgets sized, style paddings.
 *(Not so important, you can adjust it to modify default sizes and spaces)*/
#define LV_DPI_DEF 130     /*[px/inch]*/

/*=================
 * OPERATING SYSTEM
 *=================*/
/*Select an operating system to use. Possible options:
 * - LV_OS_NONE
 * - LV_OS_PTHREAD
 * - LV_OS_FREERTOS
 * - LV_OS_CMSIS_RTOS2
 * - LV_OS_RTTHREAD
 * - LV_OS_WINDOWS
 * - LV_OS_CUSTOM */
#define LV_USE_OS   LV_OS_FREERTOS

#if LV_USE_OS == LV_OS_CUSTOM
    #define LV_OS_CUSTOM_INCLUDE <stdint.h>
#endif

/*========================
 * RENDERING CONFIGURATION
 *========================*/

/*Align the stride of all layers and images to this bytes*/
#define LV_DRAW_BUF_STRIDE_ALIGN                1


/*Align the start address of draw_buf addresses to this bytes*/
#define LV_DRAW_BUF_ALIGN                       4

/* If a widget has `style_opa < 255` (not `bg_opa`, `text_opa` etc) or not NORMAL blend mode
 * it is buffered into a "simple" layer before rendering. The widget can be buffered in smaller chunks.
 * "Transformed layers" (if `transform_angle/zoom` are set) use larger buffers
 * and can't be drawn in chunks. */

/*The target buffer size for simple layer chunks.*/
#define LV_DRAW_LAYER_SIMPLE_BUF_SIZE    (24 * 1024)   /*[bytes]*/

#define LV_USE_DRAW_SW 1
#if LV_USE_DRAW_SW == 1
    /* Set the number of draw unit.
     * > 1 requires an operating system enabled in `LV_USE_OS`
     * > 1 means multiply threads will render the screen in parallel */
    #define LV_DRAW_SW_DRAW_UNIT_CNT    2

    /* Use Arm-2D to accelerate the sw render */
    #define LV_USE_DRAW_ARM2D_SYNC      0

    /* Enable native helium assembly to be compiled */
    #define LV_USE_NATIVE_HELIUM_ASM    1

    /* 0: use a simple renderer capable of drawing only simple rectangles with gradient, images, texts, and straight lines only
     * 1: use a complex renderer capable of drawing rounded corners, shadow, skew lines, and arcs too */
    #define LV_DRAW_SW_COMPLEX          1

    #if LV_DRAW_SW_COMPLEX == 1
        /*Allow buffering some shadow calculation.
        *LV_DRAW_SW_SHADOW_CACHE_SIZE is the max. shadow size to buffer, where shadow size is `shadow_width + radius`
        *Caching has LV_DRAW_SW_SHADOW_CACHE_SIZE^2 RAM cost*/
        #define LV_DRAW_SW_SHADOW_CACHE_SIZE 0

        /* Set number of maximally cached circle data.
        * The circumference of 1/4 circle are saved for anti-aliasing
        * radius * 4 bytes are used per circle (the most often used radiuses are saved)
        * 0: to disable caching */
        #define LV_DRAW_SW_CIRCLE_CACHE_SIZE 4
    #endif

    #define  LV_USE_DRAW_SW_ASM     LV_DRAW_SW_ASM_NONE

    #if LV_USE_DRAW_SW_ASM == LV_DRAW_SW_ASM_CUSTOM
        #define  LV_DRAW_SW_ASM_CUSTOM_INCLUDE ""
    #endif
#endif

/* Use NXP's VG-Lite GPU on iMX RTxxx platforms. */
#define LV_USE_DRAW_VGLITE 0


/* Use NXP's PXP on iMX RTxxx platforms. */
#define LV_USE_DRAW_PXP 0


/* Use Renesas Dave2D on RA  platforms. */
#define LV_USE_DRAW_DAVE2D 0

/* Draw using cached SDL textures*/
#define LV_USE_DRAW_SDL 0

/* Use VG-Lite GPU. */
#define LV_USE_DRAW_VG_LITE 0



/*=======================
 * FEATURE CONFIGURATION
 *=======================*/

/*-------------
 * Logging
 *-----------*/

/*Enable the log module*/
#define LV_USE_LOG 1
#if LV_USE_LOG

    /*How important log should be added:
    *LV_LOG_LEVEL_TRACE       A lot of logs to give detailed information
    *LV_LOG_LEVEL_INFO        Log important events
    *LV_LOG_LEVEL_WARN        Log if something unwanted happened but didn't cause a problem
    *LV_LOG_LEVEL_ERROR       Only critical issue, when the system may fail
    *LV_LOG_LEVEL_USER        Only logs added by the user
    *LV_LOG_LEVEL_NONE        Do not log anything*/
    #define LV_LOG_LEVEL LV_LOG_LEVEL_WARN

    /*1: Print the log with 'printf';
    *0: User need to register a callback with `lv_log_register_print_cb()`*/
    #define LV_LOG_PRINTF 0

    /*1: Enable print timestamp;*/

    /*1: Print file and line number of the log;*/

    /*Enable/disable LV_LOG_TRACE in modules that produces a huge number of logs*/
    #define LV_LOG_TRACE_MEM        1
    #define LV_LOG_TRACE_TIMER      1
    #define LV_LOG_TRACE_INDEV      1
    #define LV_LOG_TRACE_DISP_REFR  1
    #define LV_LOG_TRACE_EVENT      1
    #define LV_LOG_TRACE_ANIM       1
    #define LV_LOG_TRACE_CACHE      1

#endif  /*LV_USE_LOG*/

/*-------------
 * Asserts
 *-----------*/

/*Enable asserts if an operation is failed or an invalid data is found.
 *If LV_USE_LOG is enabled an error message will be printed on failure*/
#define LV_USE_ASSERT_NULL          1   /*Check if the parameter is NULL. (Very fast, recommended)*/
#define LV_USE_ASSERT_MALLOC        1   /*Checks is the memory is successfully allocated or no. (Very fast, recommended)*/
#define LV_USE_ASSERT_STYLE         1   /*Check if the styles are properly initialized. (Very fast, recommended)*/
#define LV_USE_ASSERT_MEM_INTEGRITY 0   /*Check the integrity of `lv_mem` after critical operations. (Slow)*/
#define LV_USE_ASSERT_OBJ           0   /*Check the object's type and existence (e.g. not deleted). (Slow)*/

/*Add a custom handler when assert happens e.g. to restart the MCU*/
#define LV_ASSERT_HANDLER_INCLUDE <stdint.h>
#define LV_ASSERT_HANDLER abort();   /*Halt by default*/

/*-------------
 * Debug
 *-----------*/

/*1: Draw random colored rectangles over the redrawn areas*/
#define LV_USE_REFR_DEBUG 0

/*1: Draw a red overlay for ARGB layers and a green overlay for RGB layers*/
#define LV_USE_LAYER_DEBUG 0

/*1: Draw overlays with different colors for each draw_unit's tasks.
 *Also add the index number of the draw unit on white background.
 *For layers add the index number of the draw unit on black background.*/
#define LV_USE_PARALLEL_DRAW_DEBUG 0

/*-------------
 * Others
 *-----------*/

#define LV_ENABLE_GLOBAL_CUSTOM 0
#if LV_ENABLE_GLOBAL_CUSTOM
    /*Header to include for the custom 'lv_global' function"*/
    #define LV_GLOBAL_CUSTOM_INCLUDE <stdint.h>
#endif

/*Default cache size in bytes.
 *Used by image decoders such as `lv_lodepng` to keep the decoded image in the memory.
 *If size is not set to 0, the decoder will fail to decode when the cache is full.
 *If size is 0, the cache function is not enabled and the decoded mem will be released immediately after use.*/
#define LV_CACHE_DEF_SIZE       0

/*Default number of image header cache entries. The cache is used to store the headers of images
 *The main logic is like `LV_CACHE_DEF_SIZE` but for image headers.*/
#define LV_IMAGE_HEADER_CACHE_DEF_CNT 0

/*Number of stops allowed per gradient. Increase this to allow more stops.
 *This adds (sizeof(lv_color_t) + 1) bytes per additional stop*/
#define LV_GRADIENT_MAX_STOPS   2

/* Adjust color mix functions rounding. GPUs might calculate color mix (blending) differently.
 * 0: round down, 64: round up from x.75, 128: round up from half, 192: round up from x.25, 254: round up */
#define LV_COLOR_MIX_ROUND_OFS  0

/* Add 2 x 32 bit variables to each lv_obj_t to speed up getting style properties */
#define LV_OBJ_STYLE_CACHE      0

/* Add `id` field to `lv_obj_t` */
#define LV_USE_OBJ_ID           0

/* Use lvgl builtin method for obj ID */
#define LV_USE_OBJ_ID_BUILTIN   0

/*Use obj property set/get API*/
#define LV_USE_OBJ_PROPERTY 0

/* VG-Lite Simulator */
/*Requires: LV_USE_THORVG_INTERNAL or LV_USE_THORVG_EXTERNAL */
#define LV_USE_VG_LITE_THORVG  0



/*=====================
 *  COMPILER SETTINGS
 *====================*/

/*For big endian systems set to 1*/
#define LV_BIG_ENDIAN_SYSTEM 0

/*Define a custom attribute to `lv_tick_inc` function*/
#define LV_ATTRIBUTE_TICK_INC

/*Define a custom attribute to `lv_timer_handler` function*/
#define LV_ATTRIBUTE_TIMER_HANDLER

/*Define a custom attribute to `lv_display_flush_ready` function*/
#define LV_ATTRIBUTE_FLUSH_READY

/*Required alignment size for buffers*/
#define LV_ATTRIBUTE_MEM_ALIGN_SIZE 1

/*Will be added where memories needs to be aligned (with -Os data might not be aligned to boundary by default).
 * E.g. __attribute__((aligned(4)))*/
#define LV_ATTRIBUTE_MEM_ALIGN

/*Attribute to mark large constant arrays for example font's bitmaps*/
#define LV_ATTRIBUTE_LARGE_CONST

/*Compiler prefix for a big array declaration in RAM*/
#define LV_ATTRIBUTE_LARGE_RAM_ARRAY

/*Place performance critical functions into a faster memory (e.g RAM)*/
#define LV_ATTRIBUTE_FAST_MEM

/*Export integer constant to binding. This macro is used with constants in the form of LV_<CONST> that
 *should also appear on LVGL binding API such as Micropython.*/
#define LV_EXPORT_CONST_INT(int_value) struct _silence_gcc_warning /*The default value just prevents GCC warning*/

/*Prefix all global extern data with this*/
#define LV_ATTRIBUTE_EXTERN_DATA

/* Use `float` as `lv_value_precise_t` */
#define LV_USE_FLOAT            0

/*==================
 *   FONT USAGE
 *===================*/

/*Montserrat fonts with ASCII range and some symbols using bpp = 4
 *https://fonts.google.com/specimen/Montserrat*/
#define LV_FONT_MONTSERRAT_8  1
#define LV_FONT_MONTSERRAT_10 1
#define LV_FONT_MONTSERRAT_12 1
#define LV_FONT_MONTSERRAT_14 1
#define LV_FONT_MONTSERRAT_16 1
#define LV_FONT_MONTSERRAT_18 1
#define LV_FONT_MONTSERRAT_20 1
#define LV_FONT_MONTSERRAT_22 1
#define LV_FONT_MONTSERRAT_24 1
#define LV_FONT_MONTSERRAT_26 1
#define LV_FONT_MONTSERRAT_28 1
#define LV_FONT_MONTSERRAT_30 1
#define LV_FONT_MONTSERRAT_32 1
#define LV_FONT_MONTSERRAT_34 0
#define LV_FONT_MONTSERRAT_36 0
#define LV_FONT_MONTSERRAT_38 0
#define LV_FONT_MONTSERRAT_40 0
#define LV_FONT_MONTSERRAT_42 0
#define LV_FONT_MONTSERRAT_44 0
#define LV_FONT_MONTSERRAT_46 0
#define LV_FONT_MONTSERRAT_48 0

/*Demonstrate special features*/
#define LV_FONT_MONTSERRAT_28_COMPRESSED 0  /*bpp = 3*/
#define LV_FONT_DEJAVU_16_PERSIAN_HEBREW 0  /*Hebrew, Arabic, Persian letters and all their forms*/
#define LV_FONT_SIMSUN_16_CJK            0  /*1000 most common CJK radicals*/

/*Pixel perfect monospace fonts*/
#define LV_FONT_UNSCII_8  0
#define LV_FONT_UNSCII_16 0

/*Optionally declare custom fonts here.
 *You can use these fonts as default font too and they will be available globally.
 *E.g. #define LV_FONT_CUSTOM_DECLARE   LV_FONT_DECLARE(my_font_1) LV_FONT_DECLARE(my_font_2)*/
#define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(olney_light_14)  LV_FONT_DECLARE(olney_light_14_full)

/*Always set a default font*/
#define LV_FONT_DEFAULT &lv_font_montserrat_14

/*Enable handling large font and/or fonts with a lot of characters.
 *The limit depends on the font size, font face and bpp.
 *Compiler error will be triggered if a font needs it.*/
#define LV_FONT_FMT_TXT_LARGE 0

/*Enables/disables support for compressed fonts.*/
#define LV_USE_FONT_COMPRESSED 0

/*Enable drawing placeholders when glyph dsc is not found*/
#define LV_USE_FONT_PLACEHOLDER 1

/*=================
 *  TEXT SETTINGS
 *=================*/

/**
 * Select a character encoding for strings.
 * Your IDE or editor should have the same character encoding
 * - LV_TXT_ENC_UTF8
 * - LV_TXT_ENC_ASCII
 */
#define LV_TXT_ENC LV_TXT_ENC_UTF8

/*Can break (wrap) texts on these chars*/
#define LV_TXT_BREAK_CHARS " ,.;:-_)]}"

/*If a word is at least this long, will break wherever "prettiest"
 *To disable, set to a value <= 0*/
#define LV_TXT_LINE_BREAK_LONG_LEN 0

/*Minimum number of characters in a long word to put on a line before a break.
 *Depends on LV_TXT_LINE_BREAK_LONG_LEN.*/
#define LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN 3

/*Minimum number of characters in a long word to put on a line after a break.
 *Depends on LV_TXT_LINE_BREAK_LONG_LEN.*/
#define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3


/*==================
 * WIDGETS
 *================*/

/*Documentation of the widgets: https://docs.lvgl.io/latest/en/html/widgets/index.html*/

#define LV_WIDGETS_HAS_DEFAULT_VALUE  1

#define LV_USE_ANIMIMG    1

#define LV_USE_ARC        1

#define LV_USE_BAR        1

#define LV_USE_BUTTON        1

#define LV_USE_BUTTONMATRIX  1

#define LV_USE_CALENDAR   0
#if LV_USE_CALENDAR
    #define LV_CALENDAR_WEEK_STARTS_MONDAY 0
    #if LV_CALENDAR_WEEK_STARTS_MONDAY
        #define LV_CALENDAR_DEFAULT_DAY_NAMES {"Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"}
    #else
        #define LV_CALENDAR_DEFAULT_DAY_NAMES {"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"}
    #endif

    #define LV_CALENDAR_DEFAULT_MONTH_NAMES {"January", "February", "March",  "April", "May",  "June", "July", "August", "September", "October", "November", "December"}
    #define LV_USE_CALENDAR_HEADER_ARROW 1
    #define LV_USE_CALENDAR_HEADER_DROPDOWN 1
#endif  /*LV_USE_CALENDAR*/

#define LV_USE_CANVAS     1

#define LV_USE_CHART      1

#define LV_USE_CHECKBOX   1

#define LV_USE_DROPDOWN   1   /*Requires: lv_label*/

#define LV_USE_IMAGE      1   /*Requires: lv_label*/

#define LV_USE_IMAGEBUTTON     1

#define LV_USE_KEYBOARD   1

#define LV_USE_LABEL      1
#if LV_USE_LABEL
    #define LV_LABEL_TEXT_SELECTION 1 /*Enable selecting text of the label*/
    #define LV_LABEL_LONG_TXT_HINT 1  /*Store some extra info in labels to speed up drawing of very long texts*/
    #define LV_LABEL_WAIT_CHAR_COUNT 3  /*The count of wait chart*/
#endif

#define LV_USE_LED        1

#define LV_USE_LINE       1

#define LV_USE_LIST       1

#define LV_USE_MENU       1

#define LV_USE_MSGBOX     1

#define LV_USE_ROLLER     1   /*Requires: lv_label*/

#define LV_USE_SCALE      1

#define LV_USE_SLIDER     1   /*Requires: lv_bar*/

#define LV_USE_SPAN       1
#if LV_USE_SPAN
    /*A line text can contain maximum num of span descriptor */
    #define LV_SPAN_SNIPPET_STACK_SIZE 64
#endif

#define LV_USE_SPINBOX    1

#define LV_USE_SPINNER    1

#define LV_USE_SWITCH     1

#define LV_USE_TEXTAREA   1   /*Requires: lv_label*/
#if LV_USE_TEXTAREA != 0
    #define LV_TEXTAREA_DEF_PWD_SHOW_TIME 1500    /*ms*/
#endif

#define LV_USE_TABLE      1

#define LV_USE_TABVIEW    1

#define LV_USE_TILEVIEW   1

#define LV_USE_WIN        1

/*==================
 * THEMES
 *==================*/

/*A simple, impressive and very complete theme*/
#define LV_USE_THEME_DEFAULT 1
#if LV_USE_THEME_DEFAULT

    /*0: Light mode; 1: Dark mode*/
    #define LV_THEME_DEFAULT_DARK 1

    /*1: Enable grow on press*/
    #define LV_THEME_DEFAULT_GROW 1

    /*Default transition time in [ms]*/
    #define LV_THEME_DEFAULT_TRANSITION_TIME 80
#endif /*LV_USE_THEME_DEFAULT*/

/*A very simple theme that is a good starting point for a custom theme*/
#define LV_USE_THEME_SIMPLE 0

/*A theme designed for monochrome displays*/
#define LV_USE_THEME_MONO 0

/*==================
 * LAYOUTS
 *==================*/

/*A layout similar to Flexbox in CSS.*/
#define LV_USE_FLEX 1

/*A layout similar to Grid in CSS.*/
#define LV_USE_GRID 1

/*====================
 * 3RD PARTS LIBRARIES
 *====================*/

/*File system interfaces for common APIs */

/*API for fopen, fread, etc*/
#define LV_USE_FS_STDIO 0
#if LV_USE_FS_STDIO
    #define LV_FS_STDIO_LETTER '\0'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
    #define LV_FS_STDIO_PATH ""         /*Set the working directory. File/directory paths will be appended to it.*/
    #define LV_FS_STDIO_CACHE_SIZE 0    /*>0 to cache this number of bytes in lv_fs_read()*/
#endif

/*API for open, read, etc*/
#define LV_USE_FS_POSIX 0
#if LV_USE_FS_POSIX
    #define LV_FS_POSIX_LETTER '\0'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
    #define LV_FS_POSIX_PATH ""         /*Set the working directory. File/directory paths will be appended to it.*/
    #define LV_FS_POSIX_CACHE_SIZE 0    /*>0 to cache this number of bytes in lv_fs_read()*/
#endif

/*API for CreateFile, ReadFile, etc*/
#define LV_USE_FS_WIN32 0
#if LV_USE_FS_WIN32
    #define LV_FS_WIN32_LETTER '\0'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
    #define LV_FS_WIN32_PATH ""         /*Set the working directory. File/directory paths will be appended to it.*/
    #define LV_FS_WIN32_CACHE_SIZE 0    /*>0 to cache this number of bytes in lv_fs_read()*/
#endif

/*API for FATFS (needs to be added separately). Uses f_open, f_read, etc*/
#define LV_USE_FS_FATFS 0
#if LV_USE_FS_FATFS
    #define LV_FS_FATFS_LETTER '\0'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
    #define LV_FS_FATFS_CACHE_SIZE 0    /*>0 to cache this number of bytes in lv_fs_read()*/
#endif

/*API for memory-mapped file access. */
#define LV_USE_FS_MEMFS 0
#if LV_USE_FS_MEMFS
    #define LV_FS_MEMFS_LETTER '\0'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#endif

/*API for LittleFs. */
#define LV_USE_FS_LITTLEFS 0
#if LV_USE_FS_LITTLEFS
    #define LV_FS_LITTLEFS_LETTER '\0'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#endif

/*LODEPNG decoder library*/
#define LV_USE_LODEPNG 0

/*PNG decoder(libpng) library*/
#define LV_USE_LIBPNG 0

/*BMP decoder library*/
#define LV_USE_BMP 0

/* JPG + split JPG decoder library.
 * Split JPG is a custom format optimized for embedded systems. */
#define LV_USE_TJPGD 0

/* libjpeg-turbo decoder library.
 * Supports complete JPEG specifications and high-performance JPEG decoding. */
#define LV_USE_LIBJPEG_TURBO 0

/*GIF decoder library*/
#define LV_USE_GIF 0
#if LV_USE_GIF
/*GIF decoder accelerate*/
#define LV_GIF_CACHE_DECODE_DATA 0
#endif


/*Decode bin images to RAM*/
#define LV_BIN_DECODER_RAM_LOAD 0

/*RLE decompress library*/
#define LV_USE_RLE 0

/*QR code library*/
#define LV_USE_QRCODE 0

/*Barcode code library*/
#define LV_USE_BARCODE 0

/*FreeType library*/
#define LV_USE_FREETYPE 0
#if LV_USE_FREETYPE
    /*Let FreeType to use LVGL memory and file porting*/
    #define LV_FREETYPE_USE_LVGL_PORT 0

    /*Cache count of the glyphs in FreeType. It means the number of glyphs that can be cached.
     *The higher the value, the more memory will be used.*/
    #define LV_FREETYPE_CACHE_FT_GLYPH_CNT 256
#endif

/* Built-in TTF decoder */
#define LV_USE_TINY_TTF 0
#if LV_USE_TINY_TTF
    /* Enable loading TTF data from files */
    #define LV_TINY_TTF_FILE_SUPPORT 0
#endif

/*Rlottie library*/
#define LV_USE_RLOTTIE 0

/*Enable Vector Graphic APIs*/
#define LV_USE_VECTOR_GRAPHIC  0

/* Enable ThorVG (vector graphics library) from the src/libs folder */
#define LV_USE_THORVG_INTERNAL 0

/* Enable ThorVG by assuming that its installed and linked to the project */
#define LV_USE_THORVG_EXTERNAL 0

/*Use lvgl built-in LZ4 lib*/
#define LV_USE_LZ4_INTERNAL  0

/*Use external LZ4 library*/
#define LV_USE_LZ4_EXTERNAL  0


/*==================
 * OTHERS
 *==================*/

/*1: Enable API to take snapshot for object*/
#define LV_USE_SNAPSHOT 0

/*1: Enable system monitor component*/
#define LV_USE_SYSMON   0
#if LV_USE_SYSMON
    /*Get the idle percentage. E.g. uint32_t my_get_idle(void);*/
    #define LV_SYSMON_GET_IDLE lv_timer_get_idle

    /*1: Show CPU usage and FPS count
     * Requires `LV_USE_SYSMON = 1`*/
    #define LV_USE_PERF_MONITOR 1
    #if LV_USE_PERF_MONITOR
        #define LV_USE_PERF_MONITOR_POS LV_ALIGN_BOTTOM_RIGHT

        /*0: Displays performance data on the screen, 1: Prints performance data using log.*/
        #define LV_USE_PERF_MONITOR_LOG_MODE 0
    #endif

    /*1: Show the used memory and the memory fragmentation
     * Requires `LV_USE_STDLIB_MALLOC = LV_STDLIB_BUILTIN`
     * Requires `LV_USE_SYSMON = 1`*/
    #define LV_USE_MEM_MONITOR 0
    #if LV_USE_MEM_MONITOR
        #define LV_USE_MEM_MONITOR_POS LV_ALIGN_BOTTOM_LEFT
    #endif

#endif /*LV_USE_SYSMON*/


/*1: Enable Monkey test*/
#define LV_USE_MONKEY 0

/*1: Enable grid navigation*/
#define LV_USE_GRIDNAV 0

/*1: Enable lv_obj fragment*/
#define LV_USE_FRAGMENT 0

/*1: Support using images as font in label or span widgets */
#define LV_USE_IMGFONT 0

/*1: Enable an observer pattern implementation*/
#define LV_USE_OBSERVER 1

/*==================
 * DEVICES
 *==================*/

/*Drivers for LCD devices connected via SPI/parallel port*/
#define LV_USE_ST7735		0
#define LV_USE_ST7789		0
#define LV_USE_ST7796		0
#define LV_USE_ILI9341		0

#define LV_USE_GENERIC_MIPI (LV_USE_ST7735 | LV_USE_ST7789 | LV_USE_ST7796 | LV_USE_ILI9341)

/* LVGL Windows backend */
#define LV_USE_WINDOWS    0

/*==================
* EXAMPLES
*==================*/

/*Enable the examples to be built with the library*/
#define LV_BUILD_EXAMPLES 0

/*===================
 * DEMO USAGE
 ====================*/

/*Show some widget. It might be required to increase `LV_MEM_SIZE` */
#define LV_USE_DEMO_WIDGETS 0

/*Demonstrate the usage of encoder and keyboard*/
#define LV_USE_DEMO_KEYPAD_AND_ENCODER 0

/*Benchmark your system*/
#define LV_USE_DEMO_BENCHMARK 0

/*Render test for each primitives. Requires at least 480x272 display*/
#define LV_USE_DEMO_RENDER 0

/*Stress test for LVGL*/
#define LV_USE_DEMO_STRESS 0

/*Flex layout demo*/
#define LV_USE_DEMO_FLEX_LAYOUT     0

/*Smart-phone like multi-language demo*/
#define LV_USE_DEMO_MULTILANG       0

/*Widget transformation demo*/
#define LV_USE_DEMO_TRANSFORM       0

/*Demonstrate scroll settings*/
#define LV_USE_DEMO_SCROLL          0

/*Vector graphic demo*/
#define LV_USE_DEMO_VECTOR_GRAPHIC  0
/*--END OF LV_CONF_H--*/

#endif /*LV_CONF_H*/

#endif /*End of "Content enable"*/