嵌入式linux下使用lvgl模拟器(SDL2)

        这里就直接开始了,安装虚拟机和c/c++开发环境就请看正点原子的qt教程安装,同时没有CMake教程和SDL2教程,主打一个速记。

一、从官网下载lvgl源码(v8.3.9)

        lvgl需要从github上面下载,网络不好请自行爬梯。

git clone -b v8.3.9 https://github.com/lvgl/lvgl.git

二、下载lvgl_drivers驱动(v8.3.0)

git clone -b v8.3.0 https://github.com/lvgl/lv_drivers.git

三、安装sdl2库

sudo apt-get update && sudo apt-get install -y build-essential libsdl2-dev

四、必要的代码

        可以从也可以从lvgl的官网找到例程,着急的兄弟也可以直接copy我改好的,这里需要他们的main.c、CMakeLists.txt、lv_conf.h和lv_drv_conf.h。

git clone --recursive https://github.com/lvgl/lv_port_linux_frame_buffer.git

改好的代码

main.c

#include "sdl/sdl.h"
#include "lvgl.h"
#include "lv_demos.h"
#include 
#include 
#include 
#include 


#define DISP_BUF_SIZE (600 * 1024)

int main(void)
{
    /*LittlevGL init*/
    lv_init();

    /*Linux frame buffer device init*/
#if USE_SDL
	sdl_init();
#else
	fbdev_init();
	evdev_init();
#endif

    /*A small buffer for LittlevGL to draw the screen's content*/
    static lv_color_t buf1[DISP_BUF_SIZE];
    static lv_color_t buf2[DISP_BUF_SIZE];

    /*Initialize a descriptor for the buffer*/
    static lv_disp_draw_buf_t disp_buf;
    lv_disp_draw_buf_init(&disp_buf, buf1, buf2, DISP_BUF_SIZE*2);

    /*Initialize and register a display driver*/
    static lv_disp_drv_t disp_drv;
    lv_disp_drv_init(&disp_drv);
    disp_drv.draw_buf   = &disp_buf;
#if USE_SDL
	disp_drv.flush_cb = sdl_display_flush; /*Set a flush callback to draw to the display*/
#else
	disp_drv.flush_cb = fbdev_flush; /*Set a flush callback to draw to the display*/
#endif
    disp_drv.hor_res    = 1024;
    disp_drv.ver_res    = 600;
    lv_disp_drv_register(&disp_drv);


    static lv_indev_drv_t indev_drv_1;
    lv_indev_drv_init(&indev_drv_1); /*Basic initialization*/
    indev_drv_1.type = LV_INDEV_TYPE_POINTER;

    /*This function will be called periodically (by the library) to get the mouse position and state*/
#if USE_SDL
	indev_drv_1.read_cb = sdl_mouse_read;
#else
	indev_drv.read_cb = evdev_read;
#endif
    lv_indev_t *mouse_indev = lv_indev_drv_register(&indev_drv_1);


    /*Set a cursor for the mouse*/
    // LV_IMG_DECLARE(mouse_cursor_icon)
    // lv_obj_t * cursor_obj = lv_img_create(lv_scr_act()); /*Create an image object for the cursor */
    // lv_img_set_src(cursor_obj, &mouse_cursor_icon);           /*Set the image source*/
    // lv_indev_set_cursor(mouse_indev, cursor_obj);             /*Connect the image  object to the driver*/


    /*Create a Demo*/
    lv_demo_widgets();

    /*Handle LitlevGL tasks (tickless mode)*/
    while(1) {
        lv_timer_handler();
        usleep(5000);
    }

    return 0;
}

/*Set in lv_conf.h as `LV_TICK_CUSTOM_SYS_TIME_EXPR`*/
uint32_t custom_tick_get(void)
{
    static uint64_t start_ms = 0;
    if(start_ms == 0) {
        struct timeval tv_start;
        gettimeofday(&tv_start, NULL);
        start_ms = (tv_start.tv_sec * 1000000 + tv_start.tv_usec) / 1000;
    }

    struct timeval tv_now;
    gettimeofday(&tv_now, NULL);
    uint64_t now_ms;
    now_ms = (tv_now.tv_sec * 1000000 + tv_now.tv_usec) / 1000;

    uint32_t time_ms = now_ms - start_ms;
    return time_ms;
}

lv_conf.h

/**
 * @file lv_conf.h
 * Configuration file for v8.3.9
 */

/*
 * 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*/

#ifndef LV_CONF_H
#define LV_CONF_H

#include 
extern uint32_t custom_tick_get(void);

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

/*Color depth: 1 (1 byte per pixel), 8 (RGB332), 16 (RGB565), 32 (ARGB8888)*/
#define LV_COLOR_DEPTH 32

/*Swap the 2 bytes of RGB565 color. Useful if the display has an 8-bit interface (e.g. SPI)*/
#define LV_COLOR_16_SWAP 0

/*Enable features to draw on transparent background.
 *It's required if opa, and transform_* style properties are used.
 *Can be also used if the UI is above another layer, e.g. an OSD menu or video player.*/
#define LV_COLOR_SCREEN_TRANSP 0

/* 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

/*Images pixels with this color will not be drawn if they are chroma keyed)*/
#define LV_COLOR_CHROMA_KEY lv_color_hex(0x00ff00)         /*pure green*/

/*=========================
   MEMORY SETTINGS
 *=========================*/

/*1: use custom malloc/free, 0: use the built-in `lv_mem_alloc()` and `lv_mem_free()`*/
#define LV_MEM_CUSTOM 0
#if LV_MEM_CUSTOM == 0
    /*Size of the memory available for `lv_mem_alloc()` in bytes (>= 2kB)*/
    #define LV_MEM_SIZE (128U * 1024U)          /*[bytes]*/

    /*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

#else       /*LV_MEM_CUSTOM*/
    #define LV_MEM_CUSTOM_INCLUDE    /*Header for the dynamic memory function*/
    #define LV_MEM_CUSTOM_ALLOC   malloc
    #define LV_MEM_CUSTOM_FREE    free
    #define LV_MEM_CUSTOM_REALLOC realloc
#endif     /*LV_MEM_CUSTOM*/

/*Number of the intermediate memory buffer used during rendering and other internal processing mechanisms.
 *You will see an error log message if there wasn't enough buffers. */
#define LV_MEM_BUF_MAX_NUM 16

/*Use the standard `memcpy` and `memset` instead of LVGL's own functions. (Might or might not be faster).*/
#define LV_MEMCPY_MEMSET_STD 0

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

/*Default display refresh period. LVG will redraw changed areas with this period time*/
#define LV_DISP_DEF_REFR_PERIOD 30      /*[ms]*/

/*Input device read period in milliseconds*/
#define LV_INDEV_DEF_READ_PERIOD 30     /*[ms]*/

/*Use a custom tick source that tells the elapsed time in milliseconds.
 *It removes the need to manually update the tick with `lv_tick_inc()`)*/
#define LV_TICK_CUSTOM 1
#if LV_TICK_CUSTOM
    #define LV_TICK_CUSTOM_INCLUDE "stdlib.h"         /*Header for the system time function*/
    #define LV_TICK_CUSTOM_SYS_TIME_EXPR (custom_tick_get())    /*Expression evaluating to current system time in ms*/
    /*If using lvgl as ESP32 component*/
    // #define LV_TICK_CUSTOM_INCLUDE "esp_timer.h"
    // #define LV_TICK_CUSTOM_SYS_TIME_EXPR ((esp_timer_get_time() / 1000LL))
#endif   /*LV_TICK_CUSTOM*/

/*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]*/

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

/*-------------
 * Drawing
 *-----------*/

/*Enable complex draw engine.
 *Required to draw shadow, gradient, rounded corners, circles, arc, skew lines, image transformations or any masks*/
#define LV_DRAW_COMPLEX 1
#if LV_DRAW_COMPLEX != 0

    /*Allow buffering some shadow calculation.
    *LV_SHADOW_CACHE_SIZE is the max. shadow size to buffer, where shadow size is `shadow_width + radius`
    *Caching has LV_SHADOW_CACHE_SIZE^2 RAM cost*/
    #define LV_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_CIRCLE_CACHE_SIZE 4
#endif /*LV_DRAW_COMPLEX*/

/**
 * "Simple layers" are used when a widget has `style_opa < 255` to buffer the widget into a layer
 * and blend it as an image with the given opacity.
 * Note that `bg_opa`, `text_opa` etc don't require buffering into layer)
 * The widget can be buffered in smaller chunks to avoid using large buffers.
 *
 * - LV_LAYER_SIMPLE_BUF_SIZE: [bytes] the optimal target buffer size. LVGL will try to allocate it
 * - LV_LAYER_SIMPLE_FALLBACK_BUF_SIZE: [bytes]  used if `LV_LAYER_SIMPLE_BUF_SIZE` couldn't be allocated.
 *
 * Both buffer sizes are in bytes.
 * "Transformed layers" (where transform_angle/zoom properties are used) use larger buffers
 * and can't be drawn in chunks. So these settings affects only widgets with opacity.
 */
#define LV_LAYER_SIMPLE_BUF_SIZE          (24 * 1024)
#define LV_LAYER_SIMPLE_FALLBACK_BUF_SIZE (3 * 1024)

/*Default image cache size. Image caching keeps the images opened.
 *If only the built-in image formats are used there is no real advantage of caching. (I.e. if no new image decoder is added)
 *With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images.
 *However the opened images might consume additional RAM.
 *0: to disable caching*/
#define LV_IMG_CACHE_DEF_SIZE 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

/*Default gradient buffer size.
 *When LVGL calculates the gradient "maps" it can save them into a cache to avoid calculating them again.
 *LV_GRAD_CACHE_DEF_SIZE sets the size of this cache in bytes.
 *If the cache is too small the map will be allocated only while it's required for the drawing.
 *0 mean no caching.*/
#define LV_GRAD_CACHE_DEF_SIZE 0

/*Allow dithering the gradients (to achieve visual smooth color gradients on limited color depth display)
 *LV_DITHER_GRADIENT implies allocating one or two more lines of the object's rendering surface
 *The increase in memory consumption is (32 bits * object width) plus 24 bits * object width if using error diffusion */
#define LV_DITHER_GRADIENT 0
#if LV_DITHER_GRADIENT
    /*Add support for error diffusion dithering.
     *Error diffusion dithering gets a much better visual result, but implies more CPU consumption and memory when drawing.
     *The increase in memory consumption is (24 bits * object's width)*/
    #define LV_DITHER_ERROR_DIFFUSION 0
#endif

/*Maximum buffer size to allocate for rotation.
 *Only used if software rotation is enabled in the display driver.*/
#define LV_DISP_ROT_MAX_BUF (10*1024)

/*-------------
 * GPU
 *-----------*/

/*Use Arm's 2D acceleration library Arm-2D */
#define LV_USE_GPU_ARM2D 0

/*Use STM32's DMA2D (aka Chrom Art) GPU*/
#define LV_USE_GPU_STM32_DMA2D 0
#if LV_USE_GPU_STM32_DMA2D
    /*Must be defined to include path of CMSIS header of target processor
    e.g. "stm32f7xx.h" or "stm32f4xx.h"*/
    #define LV_GPU_DMA2D_CMSIS_INCLUDE
#endif

/*Enable RA6M3 G2D GPU*/
#define LV_USE_GPU_RA6M3_G2D 0
#if LV_USE_GPU_RA6M3_G2D
    /*include path of target processor
    e.g. "hal_data.h"*/
    #define LV_GPU_RA6M3_G2D_INCLUDE "hal_data.h"
#endif

/*Use SWM341's DMA2D GPU*/
#define LV_USE_GPU_SWM341_DMA2D 0
#if LV_USE_GPU_SWM341_DMA2D
    #define LV_GPU_SWM341_DMA2D_INCLUDE "SWM341.h"
#endif

/*Use NXP's PXP GPU iMX RTxxx platforms*/
#define LV_USE_GPU_NXP_PXP 0
#if LV_USE_GPU_NXP_PXP
    /*1: Add default bare metal and FreeRTOS interrupt handling routines for PXP (lv_gpu_nxp_pxp_osa.c)
    *   and call lv_gpu_nxp_pxp_init() automatically during lv_init(). Note that symbol SDK_OS_FREE_RTOS
    *   has to be defined in order to use FreeRTOS OSA, otherwise bare-metal implementation is selected.
    *0: lv_gpu_nxp_pxp_init() has to be called manually before lv_init()
    */
    #define LV_USE_GPU_NXP_PXP_AUTO_INIT 0
#endif

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

/*Use SDL renderer API*/
#define LV_USE_GPU_SDL 0
#if LV_USE_GPU_SDL
    #define LV_GPU_SDL_INCLUDE_PATH 
    /*Texture cache size, 8MB by default*/
    #define LV_GPU_SDL_LRU_SIZE (1024 * 1024 * 8)
    /*Custom blend mode for mask drawing, disable if you need to link with older SDL2 lib*/
    #define LV_GPU_SDL_CUSTOM_BLEND_MODE (SDL_VERSION_ATLEAST(2, 0, 6))
#endif

/*-------------
 * 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 1

    /*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_OBJ_CREATE 1
    #define LV_LOG_TRACE_LAYOUT     1
    #define LV_LOG_TRACE_ANIM       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         0   /*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 
#define LV_ASSERT_HANDLER while(1);   /*Halt by default*/

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

/*1: Show CPU usage and FPS count*/
#define LV_USE_PERF_MONITOR 1
#if LV_USE_PERF_MONITOR
    #define LV_USE_PERF_MONITOR_POS LV_ALIGN_BOTTOM_RIGHT
#endif

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

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

/*Change the built in (v)snprintf functions*/
#define LV_SPRINTF_CUSTOM 0
#if LV_SPRINTF_CUSTOM
    #define LV_SPRINTF_INCLUDE 
    #define lv_snprintf  snprintf
    #define lv_vsnprintf vsnprintf
#else   /*LV_SPRINTF_CUSTOM*/
    #define LV_SPRINTF_USE_FLOAT 0
#endif  /*LV_SPRINTF_CUSTOM*/

#define LV_USE_USER_DATA 1

/*Garbage Collector settings
 *Used if lvgl is bound to higher level language and the memory is managed by that language*/
#define LV_ENABLE_GC 0
#if LV_ENABLE_GC != 0
    #define LV_GC_INCLUDE "gc.h"                           /*Include Garbage Collector related things*/
#endif /*LV_ENABLE_GC*/

/*=====================
 *  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_disp_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

/*Prefix variables that are used in GPU accelerated operations, often these need to be placed in RAM sections that are DMA accessible*/
#define LV_ATTRIBUTE_DMA

/*Export integer constant to binding. This macro is used with constants in the form of LV_ 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*/

/*Extend the default -32k..32k coordinate range to -4M..4M by using int32_t for coordinates instead of int16_t*/
#define LV_USE_LARGE_COORD 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  0
#define LV_FONT_MONTSERRAT_10 0
#define LV_FONT_MONTSERRAT_12 0
#define LV_FONT_MONTSERRAT_14 1
#define LV_FONT_MONTSERRAT_16 0
#define LV_FONT_MONTSERRAT_18 0
#define LV_FONT_MONTSERRAT_20 0
#define LV_FONT_MONTSERRAT_22 0
#define LV_FONT_MONTSERRAT_24 0
#define LV_FONT_MONTSERRAT_26 0
#define LV_FONT_MONTSERRAT_28 0
#define LV_FONT_MONTSERRAT_30 0
#define LV_FONT_MONTSERRAT_32 0
#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_12_SUBPX      0
#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

/*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 subpixel rendering*/
#define LV_USE_FONT_SUBPX 0
#if LV_USE_FONT_SUBPX
    /*Set the pixel order of the display. Physical order of RGB channels. Doesn't matter with "normal" fonts.*/
    #define LV_FONT_SUBPX_BGR 0  /*0: RGB; 1:BGR order*/
#endif

/*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

/*The control character to use for signalling text recoloring.*/
#define LV_TXT_COLOR_CMD "#"

/*Support bidirectional texts. Allows mixing Left-to-Right and Right-to-Left texts.
 *The direction will be processed according to the Unicode Bidirectional Algorithm:
 *https://www.w3.org/International/articles/inline-bidi-markup/uba-basics*/
#define LV_USE_BIDI 0
#if LV_USE_BIDI
    /*Set the default direction. Supported values:
    *`LV_BASE_DIR_LTR` Left-to-Right
    *`LV_BASE_DIR_RTL` Right-to-Left
    *`LV_BASE_DIR_AUTO` detect texts base direction*/
    #define LV_BIDI_BASE_DIR_DEF LV_BASE_DIR_AUTO
#endif

/*Enable Arabic/Persian processing
 *In these languages characters should be replaced with an other form based on their position in the text*/
#define LV_USE_ARABIC_PERSIAN_CHARS 0

/*==================
 *  WIDGET USAGE
 *================*/

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

#define LV_USE_ARC        1

#define LV_USE_BAR        1

#define LV_USE_BTN        1

#define LV_USE_BTNMATRIX  1

#define LV_USE_CANVAS     1

#define LV_USE_CHECKBOX   1

#define LV_USE_DROPDOWN   1   /*Requires: lv_label*/

#define LV_USE_IMG        1   /*Requires: lv_label*/

#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*/
#endif

#define LV_USE_LINE       1

#define LV_USE_ROLLER     1   /*Requires: lv_label*/
#if LV_USE_ROLLER
    #define LV_ROLLER_INF_PAGES 7 /*Number of extra "pages" when the roller is infinite*/
#endif

#define LV_USE_SLIDER     1   /*Requires: lv_bar*/

#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

/*==================
 * EXTRA COMPONENTS
 *==================*/

/*-----------
 * Widgets
 *----------*/
#define LV_USE_ANIMIMG    1

#define LV_USE_CALENDAR   1
#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_CHART      1

#define LV_USE_COLORWHEEL 1

#define LV_USE_IMGBTN     1

#define LV_USE_KEYBOARD   1

#define LV_USE_LED        1

#define LV_USE_LIST       1

#define LV_USE_MENU       1

#define LV_USE_METER      1

#define LV_USE_MSGBOX     1

#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_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 0

    /*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_BASIC 1

/*A theme designed for monochrome displays*/
#define LV_USE_THEME_MONO 1

/*-----------
 * 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 party 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

/*PNG decoder library*/
#define LV_USE_PNG 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_SJPG 0

/*GIF decoder library*/
#define LV_USE_GIF 0

/*QR code library*/
#define LV_USE_QRCODE 0

/*FreeType library*/
#define LV_USE_FREETYPE 0
#if LV_USE_FREETYPE
    /*Memory used by FreeType to cache characters [bytes] (-1: no caching)*/
    #define LV_FREETYPE_CACHE_SIZE (16 * 1024)
    #if LV_FREETYPE_CACHE_SIZE >= 0
        /* 1: bitmap cache use the sbit cache, 0:bitmap cache use the image cache. */
        /* sbit cache:it is much more memory efficient for small bitmaps(font size < 256) */
        /* if font size >= 256, must be configured as image cache */
        #define LV_FREETYPE_SBIT_CACHE 0
        /* Maximum number of opened FT_Face/FT_Size objects managed by this cache instance. */
        /* (0:use system defaults) */
        #define LV_FREETYPE_CACHE_FT_FACES 0
        #define LV_FREETYPE_CACHE_FT_SIZES 0
    #endif
#endif

/*Rlottie library*/
#define LV_USE_RLOTTIE 0

/*FFmpeg library for image decoding and playing videos
 *Supports all major image formats so do not enable other image decoder with it*/
#define LV_USE_FFMPEG 0
#if LV_USE_FFMPEG
    /*Dump input information to stderr*/
    #define LV_FFMPEG_DUMP_FORMAT 0
#endif

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

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

/*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 a published subscriber based messaging system */
#define LV_USE_MSG 0

/*1: Enable Pinyin input method*/
/*Requires: lv_keyboard*/
#define LV_USE_IME_PINYIN 0
#if LV_USE_IME_PINYIN
    /*1: Use default thesaurus*/
    /*If you do not use the default thesaurus, be sure to use `lv_ime_pinyin` after setting the thesauruss*/
    #define LV_IME_PINYIN_USE_DEFAULT_DICT 1
    /*Set the maximum number of candidate panels that can be displayed*/
    /*This needs to be adjusted according to the size of the screen*/
    #define LV_IME_PINYIN_CAND_TEXT_NUM 6

    /*Use 9 key input(k9)*/
    #define LV_IME_PINYIN_USE_K9_MODE      1
    #if LV_IME_PINYIN_USE_K9_MODE == 1
        #define LV_IME_PINYIN_K9_CAND_TEXT_NUM 3
    #endif // LV_IME_PINYIN_USE_K9_MODE
#endif

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

/*Enable the examples to be built with the library*/
#define LV_BUILD_EXAMPLES 1

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

/*Show some widget. It might be required to increase `LV_MEM_SIZE` */
#define LV_USE_DEMO_WIDGETS 1
#if LV_USE_DEMO_WIDGETS
#define LV_DEMO_WIDGETS_SLIDESHOW 0
#endif

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

/*Benchmark your system*/
#define LV_USE_DEMO_BENCHMARK 0
#if LV_USE_DEMO_BENCHMARK
/*Use RGB565A8 images with 16 bit color depth instead of ARGB8565*/
#define LV_DEMO_BENCHMARK_RGB565A8 0
#endif

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

/*Music player demo*/
#define LV_USE_DEMO_MUSIC 0
#if LV_USE_DEMO_MUSIC
    #define LV_DEMO_MUSIC_SQUARE    0
    #define LV_DEMO_MUSIC_LANDSCAPE 0
    #define LV_DEMO_MUSIC_ROUND     0
    #define LV_DEMO_MUSIC_LARGE     0
    #define LV_DEMO_MUSIC_AUTO_PLAY 0
#endif

/*--END OF LV_CONF_H--*/

#endif /*LV_CONF_H*/

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

lv_drv_conf.h

/**
 * @file lv_drv_conf.h
 * Configuration file for v8.3.0
 */

/*
 * COPY THIS FILE AS lv_drv_conf.h
 */

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

#ifndef LV_DRV_CONF_H
#define LV_DRV_CONF_H

#include "lv_conf.h"

/*********************
 * DELAY INTERFACE
 *********************/
#define LV_DRV_DELAY_INCLUDE              /*Dummy include by default*/
#define LV_DRV_DELAY_US(us)  /*delay_us(us)*/       /*Delay the given number of microseconds*/
#define LV_DRV_DELAY_MS(ms)  /*delay_ms(ms)*/       /*Delay the given number of milliseconds*/

/*********************
 * DISPLAY INTERFACE
 *********************/

/*------------
 *  Common
 *------------*/
#define LV_DRV_DISP_INCLUDE                    /*Dummy include by default*/
#define LV_DRV_DISP_CMD_DATA(val)  /*pin_x_set(val)*/    /*Set the command/data pin to 'val'*/
#define LV_DRV_DISP_RST(val)       /*pin_x_set(val)*/    /*Set the reset pin to 'val'*/

/*---------
 *  SPI
 *---------*/
#define LV_DRV_DISP_SPI_CS(val)          /*spi_cs_set(val)*/     /*Set the SPI's Chip select to 'val'*/
#define LV_DRV_DISP_SPI_WR_BYTE(data)    /*spi_wr(data)*/        /*Write a byte the SPI bus*/
#define LV_DRV_DISP_SPI_WR_ARRAY(adr, n) /*spi_wr_mem(adr, n)*/  /*Write 'n' bytes to SPI bus from 'adr'*/

/*------------------
 *  Parallel port
 *-----------------*/
#define LV_DRV_DISP_PAR_CS(val)          /*par_cs_set(val)*/   /*Set the Parallel port's Chip select to 'val'*/
#define LV_DRV_DISP_PAR_SLOW             /*par_slow()*/        /*Set low speed on the parallel port*/
#define LV_DRV_DISP_PAR_FAST             /*par_fast()*/        /*Set high speed on the parallel port*/
#define LV_DRV_DISP_PAR_WR_WORD(data)    /*par_wr(data)*/      /*Write a word to the parallel port*/
#define LV_DRV_DISP_PAR_WR_ARRAY(adr, n) /*par_wr_mem(adr,n)*/ /*Write 'n' bytes to Parallel ports from 'adr'*/

/***************************
 * INPUT DEVICE INTERFACE
 ***************************/

/*----------
 *  Common
 *----------*/
#define LV_DRV_INDEV_INCLUDE                  /*Dummy include by default*/
#define LV_DRV_INDEV_RST(val)    /*pin_x_set(val)*/     /*Set the reset pin to 'val'*/
#define LV_DRV_INDEV_IRQ_READ    0 /*pn_x_read()*/      /*Read the IRQ pin*/

/*---------
 *  SPI
 *---------*/
#define LV_DRV_INDEV_SPI_CS(val)            /*spi_cs_set(val)*/     /*Set the SPI's Chip select to 'val'*/
#define LV_DRV_INDEV_SPI_XCHG_BYTE(data)    0 /*spi_xchg(val)*/     /*Write 'val' to SPI and give the read value*/

/*---------
 *  I2C
 *---------*/
#define LV_DRV_INDEV_I2C_START              /*i2c_start()*/       /*Make an I2C start*/
#define LV_DRV_INDEV_I2C_STOP               /*i2c_stop()*/        /*Make an I2C stop*/
#define LV_DRV_INDEV_I2C_RESTART            /*i2c_restart()*/     /*Make an I2C restart*/
#define LV_DRV_INDEV_I2C_WR(data)           /*i2c_wr(data)*/      /*Write a byte to the I1C bus*/
#define LV_DRV_INDEV_I2C_READ(last_read)    0 /*i2c_rd()*/        /*Read a byte from the I2C bud*/


/*********************
 *  DISPLAY DRIVERS
 *********************/

/*-------------------
 *  SDL
 *-------------------*/

/* SDL based drivers for display, mouse, mousewheel and keyboard*/
#ifndef USE_SDL
# define USE_SDL 1
#endif

/* Hardware accelerated SDL driver */
#ifndef USE_SDL_GPU
# define USE_SDL_GPU 0
#endif

#if USE_SDL || USE_SDL_GPU
#  define SDL_HOR_RES     1024
#  define SDL_VER_RES     600

/* Scale window by this factor (useful when simulating small screens) */
#  define SDL_ZOOM        1

/* Used to test true double buffering with only address changing.
 * Use 2 draw buffers, bith with SDL_HOR_RES x SDL_VER_RES size*/
#  define SDL_DOUBLE_BUFFERED 0

/*Eclipse:     Visual Studio: */
#  define SDL_INCLUDE_PATH    

/*Open two windows to test multi display support*/
#  define SDL_DUAL_DISPLAY            0
#endif

/*-------------------
 *  Monitor of PC
 *-------------------*/

/*DEPRECATED: Use the SDL driver instead. */
#ifndef USE_MONITOR
#  define USE_MONITOR         0
#endif

#if USE_MONITOR
#  define MONITOR_HOR_RES     480
#  define MONITOR_VER_RES     320

/* Scale window by this factor (useful when simulating small screens) */
#  define MONITOR_ZOOM        1

/* Used to test true double buffering with only address changing.
 * Use 2 draw buffers, bith with MONITOR_HOR_RES x MONITOR_VER_RES size*/
#  define MONITOR_DOUBLE_BUFFERED 0

/*Eclipse:     Visual Studio: */
#  define MONITOR_SDL_INCLUDE_PATH    

/*Open two windows to test multi display support*/
#  define MONITOR_DUAL            0
#endif

/*-----------------------------------
 *  Native Windows (including mouse)
 *----------------------------------*/
#ifndef USE_WINDOWS
#  define USE_WINDOWS       0
#endif

#if USE_WINDOWS
#  define WINDOW_HOR_RES      480
#  define WINDOW_VER_RES      320
#endif

/*----------------------------
 *  Native Windows (win32drv)
 *---------------------------*/
#ifndef USE_WIN32DRV
#  define USE_WIN32DRV       0
#endif

#if USE_WIN32DRV
/* Scale window by this factor (useful when simulating small screens) */
#  define WIN32DRV_MONITOR_ZOOM        1
#endif

/*----------------------------------------
 *  GTK drivers (monitor, mouse, keyboard
 *---------------------------------------*/
#ifndef USE_GTK
#  define USE_GTK       0
#endif

/*----------------------------------------
 *  Wayland drivers (monitor, mouse, keyboard, touchscreen)
 *---------------------------------------*/
#ifndef USE_WAYLAND
#  define USE_WAYLAND       0
#endif

#if USE_WAYLAND
/* Support for client-side decorations */
#  ifndef LV_WAYLAND_CLIENT_SIDE_DECORATIONS
#    define LV_WAYLAND_CLIENT_SIDE_DECORATIONS 1
#  endif
/* Support for (deprecated) wl-shell protocol */
#  ifndef LV_WAYLAND_WL_SHELL
#    define LV_WAYLAND_WL_SHELL 1
#  endif
/* Support for xdg-shell protocol */
#  ifndef LV_WAYLAND_XDG_SHELL
#    define LV_WAYLAND_XDG_SHELL 0
#  endif
#endif

/*----------------
 *    SSD1963
 *--------------*/
#ifndef USE_SSD1963
#  define USE_SSD1963         0
#endif

#if USE_SSD1963
#  define SSD1963_HOR_RES     LV_HOR_RES
#  define SSD1963_VER_RES     LV_VER_RES
#  define SSD1963_HT          531
#  define SSD1963_HPS         43
#  define SSD1963_LPS         8
#  define SSD1963_HPW         10
#  define SSD1963_VT          288
#  define SSD1963_VPS         12
#  define SSD1963_FPS         4
#  define SSD1963_VPW         10
#  define SSD1963_HS_NEG      0   /*Negative hsync*/
#  define SSD1963_VS_NEG      0   /*Negative vsync*/
#  define SSD1963_ORI         0   /*0, 90, 180, 270*/
#  define SSD1963_COLOR_DEPTH 16
#endif

/*----------------
 *    R61581
 *--------------*/
#ifndef USE_R61581
#  define USE_R61581          0
#endif

#if USE_R61581
#  define R61581_HOR_RES      LV_HOR_RES
#  define R61581_VER_RES      LV_VER_RES
#  define R61581_HSPL         0       /*HSYNC signal polarity*/
#  define R61581_HSL          10      /*HSYNC length (Not Implemented)*/
#  define R61581_HFP          10      /*Horitontal Front poarch (Not Implemented)*/
#  define R61581_HBP          10      /*Horitontal Back poarch (Not Implemented */
#  define R61581_VSPL         0       /*VSYNC signal polarity*/
#  define R61581_VSL          10      /*VSYNC length (Not Implemented)*/
#  define R61581_VFP          8       /*Vertical Front poarch*/
#  define R61581_VBP          8       /*Vertical Back poarch */
#  define R61581_DPL          0       /*DCLK signal polarity*/
#  define R61581_EPL          1       /*ENABLE signal polarity*/
#  define R61581_ORI          0       /*0, 180*/
#  define R61581_LV_COLOR_DEPTH 16    /*Fix 16 bit*/
#endif

/*------------------------------
 *  ST7565 (Monochrome, low res.)
 *-----------------------------*/
#ifndef USE_ST7565
#  define USE_ST7565          0
#endif

#if USE_ST7565
/*No settings*/
#endif  /*USE_ST7565*/

/*------------------------------
 *  GC9A01 (color, low res.)
 *-----------------------------*/
#ifndef USE_GC9A01
#  define USE_GC9A01          0
#endif

#if USE_GC9A01
/*No settings*/
#endif  /*USE_GC9A01*/

/*------------------------------------------
 *  UC1610 (4 gray 160*[104|128])
 *  (EA DOGXL160 160x104 tested)
 *-----------------------------------------*/
#ifndef USE_UC1610
#  define USE_UC1610          0
#endif

#if USE_UC1610
#  define UC1610_HOR_RES         LV_HOR_RES
#  define UC1610_VER_RES         LV_VER_RES
#  define UC1610_INIT_CONTRAST   33   /* init contrast, values in [%] */
#  define UC1610_INIT_HARD_RST   0    /* 1 : hardware reset at init, 0 : software reset */
#  define UC1610_TOP_VIEW        0    /* 0 : Bottom View, 1 : Top View */
#endif  /*USE_UC1610*/

/*-------------------------------------------------
 *  SHARP memory in pixel monochrome display series
 *      LS012B7DD01 (184x38  pixels.)
 *      LS013B7DH03 (128x128 pixels.)
 *      LS013B7DH05 (144x168 pixels.)
 *      LS027B7DH01 (400x240 pixels.) (tested)
 *      LS032B7DD02 (336x536 pixels.)
 *      LS044Q7DH01 (320x240 pixels.)
 *------------------------------------------------*/
#ifndef USE_SHARP_MIP
#  define USE_SHARP_MIP       0
#endif

#if USE_SHARP_MIP
#  define SHARP_MIP_HOR_RES             LV_HOR_RES
#  define SHARP_MIP_VER_RES             LV_VER_RES
#  define SHARP_MIP_SOFT_COM_INVERSION  0
#  define SHARP_MIP_REV_BYTE(b)         /*((uint8_t) __REV(__RBIT(b)))*/  /*Architecture / compiler dependent byte bits order reverse*/
#endif  /*USE_SHARP_MIP*/

/*-------------------------------------------------
 *  ILI9341 240X320 TFT LCD
 *------------------------------------------------*/
#ifndef USE_ILI9341
#  define USE_ILI9341       0
#endif

#if USE_ILI9341
#  define ILI9341_HOR_RES       LV_HOR_RES
#  define ILI9341_VER_RES       LV_VER_RES
#  define ILI9341_GAMMA         1
#  define ILI9341_TEARING       0
#endif  /*USE_ILI9341*/

/*-----------------------------------------
 *  Linux frame buffer device (/dev/fbx)
 *-----------------------------------------*/
#ifndef USE_FBDEV
#  define USE_FBDEV           1
#endif

#if USE_FBDEV
#  define FBDEV_PATH          "/dev/fb0"
#endif

/*-----------------------------------------
 *  FreeBSD frame buffer device (/dev/fbx)
 *.........................................*/
#ifndef USE_BSD_FBDEV
#  define USE_BSD_FBDEV		0
#endif

#if USE_BSD_FBDEV
# define FBDEV_PATH		"/dev/fb0"
#endif

/*-----------------------------------------
 *  DRM/KMS device (/dev/dri/cardX)
 *-----------------------------------------*/
#ifndef USE_DRM
#  define USE_DRM           0
#endif

#if USE_DRM
#  define DRM_CARD          "/dev/dri/card0"
#  define DRM_CONNECTOR_ID  -1	/* -1 for the first connected one */
#endif

/*********************
 *  INPUT DEVICES
 *********************/

/*--------------
 *    XPT2046
 *--------------*/
#ifndef USE_XPT2046
#  define USE_XPT2046         0
#endif

#if USE_XPT2046
#  define XPT2046_HOR_RES     480
#  define XPT2046_VER_RES     320
#  define XPT2046_X_MIN       200
#  define XPT2046_Y_MIN       200
#  define XPT2046_X_MAX       3800
#  define XPT2046_Y_MAX       3800
#  define XPT2046_AVG         4
#  define XPT2046_X_INV       0
#  define XPT2046_Y_INV       0
#  define XPT2046_XY_SWAP     0
#endif

/*-----------------
 *    FT5406EE8
 *-----------------*/
#ifndef USE_FT5406EE8
#  define USE_FT5406EE8       0
#endif

#if USE_FT5406EE8
# define FT5406EE8_I2C_ADR   0x38                  /*7 bit address*/
#endif

/*---------------
 *  AD TOUCH
 *--------------*/
#ifndef USE_AD_TOUCH
#  define USE_AD_TOUCH        0
#endif

#if USE_AD_TOUCH
/*No settings*/
#endif


/*---------------------------------------
 * Mouse or touchpad on PC (using SDL)
 *-------------------------------------*/
/*DEPRECATED: Use the SDL driver instead. */
#ifndef USE_MOUSE
#  define USE_MOUSE           0
#endif

#if USE_MOUSE
/*No settings*/
#endif

/*-------------------------------------------
 * Mousewheel as encoder on PC (using SDL)
 *------------------------------------------*/
/*DEPRECATED: Use the SDL driver instead. */
#ifndef USE_MOUSEWHEEL
#  define USE_MOUSEWHEEL      0
#endif

#if USE_MOUSEWHEEL
/*No settings*/
#endif

/*-------------------------------------------------
 * Touchscreen, mouse/touchpad or keyboard as libinput interface (for Linux based systems)
 *------------------------------------------------*/
#ifndef USE_LIBINPUT
#  define USE_LIBINPUT           0
#endif

#ifndef USE_BSD_LIBINPUT
#  define USE_BSD_LIBINPUT       0
#endif

#if USE_LIBINPUT || USE_BSD_LIBINPUT
/*If only a single device of the same type is connected, you can also auto detect it, e.g.:
 *#define LIBINPUT_NAME   libinput_find_dev(LIBINPUT_CAPABILITY_TOUCH, false)*/
#  define LIBINPUT_NAME   "/dev/input/event0"        /*You can use the "evtest" Linux tool to get the list of devices and test them*/

#endif  /*USE_LIBINPUT || USE_BSD_LIBINPUT*/

/*-------------------------------------------------
 * Mouse or touchpad as evdev interface (for Linux based systems)
 *------------------------------------------------*/
#ifndef USE_EVDEV
#  define USE_EVDEV           1
#endif

#ifndef USE_BSD_EVDEV
#  define USE_BSD_EVDEV       0
#endif

#if USE_EVDEV || USE_BSD_EVDEV
#  define EVDEV_NAME   "/dev/input/event0"        /*You can use the "evtest" Linux tool to get the list of devices and test them*/
#  define EVDEV_SWAP_AXES         0               /*Swap the x and y axes of the touchscreen*/

#  define EVDEV_CALIBRATE         0               /*Scale and offset the touchscreen coordinates by using maximum and minimum values for each axis*/

#  if EVDEV_CALIBRATE
#    define EVDEV_HOR_MIN         0               /*to invert axis swap EVDEV_XXX_MIN by EVDEV_XXX_MAX*/
#    define EVDEV_HOR_MAX      4096               /*"evtest" Linux tool can help to get the correct calibraion values>*/
#    define EVDEV_VER_MIN         0
#    define EVDEV_VER_MAX      4096
#  endif  /*EVDEV_CALIBRATE*/
#endif  /*USE_EVDEV*/

/*-------------------------------------------------
 * Full keyboard support for evdev and libinput interface
 *------------------------------------------------*/
#  ifndef USE_XKB
#    define USE_XKB           0
#  endif

#if USE_LIBINPUT || USE_BSD_LIBINPUT || USE_EVDEV || USE_BSD_EVDEV
#  if USE_XKB
#    define XKB_KEY_MAP       { .rules = NULL, \
                                .model = "pc101", \
                                .layout = "us", \
                                .variant = NULL, \
                                .options = NULL } /*"setxkbmap -query" can help find the right values for your keyboard*/
#  endif  /*USE_XKB*/
#endif  /*USE_LIBINPUT || USE_BSD_LIBINPUT || USE_EVDEV || USE_BSD_EVDEV*/

/*-------------------------------
 *   Keyboard of a PC (using SDL)
 *------------------------------*/
/*DEPRECATED: Use the SDL driver instead. */
#ifndef USE_KEYBOARD
#  define USE_KEYBOARD        0
#endif

#if USE_KEYBOARD
/*No settings*/
#endif

#endif  /*LV_DRV_CONF_H*/

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

文件结构

嵌入式linux下使用lvgl模拟器(SDL2)_第1张图片

工程CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

set(CMAKE_C_STANDARD 99)

set(LV_CONF_PATH ${PROJECT_SOURCE_DIR}/lv_conf.h)

project(lvgl_sdl2)

include_directories(${PROJECT_SOURCE_DIR}/lv_inc)

add_subdirectory(lvgl)

add_subdirectory(lv_drivers)

add_subdirectory(main)





main目录下面的CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/build)

add_executable(${PROJECT_NAME} main.c)

target_link_libraries(${PROJECT_NAME} PRIVATE lvgl lvgl::examples lvgl::demos lvgl::drivers
    SDL2 
    SDL2main
)

效果展示

        在build目录终端输入cmake.. ,然后输入make -j6,再运行生成的lvgl_sdl2可执行文件(./lvgl_sdl2)即可。       嵌入式linux下使用lvgl模拟器(SDL2)_第2张图片

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