mpotapov/LVGL-simulation-example
1
0
Fork 0
Code Issues 1.2k Pull Requests Actions Packages Projects Releases Wiki Activity
LVGL-simulation-example/main/src/main.c
Xiaosheng An 47f95e396c Only keep SDL2 support. Left the other flags commented so that people can tweak it. 
Updated Readme.md for instructions.
2023-10-03 12:59:02 +01:00

292 lines
8.6 KiB
C
Raw Blame History

/**
* @file main
*
*/
/*********************
* INCLUDES
*********************/
#define _DEFAULT_SOURCE /* needed for usleep() */
#include <stdlib.h>
#include <unistd.h>
#define SDL_MAIN_HANDLED /*To fix SDL's "undefined reference to WinMain" issue*/
#include <SDL2/SDL.h>
#include "lvgl/lvgl.h"
#include "lvgl/examples/lv_examples.h"
#include "lvgl/demos/lv_demos.h"
#include "lv_drivers/sdl/sdl.h"
// #include "lv_drivers/display/monitor.h"
// #include "lv_drivers/indev/mouse.h"
// #include "lv_drivers/indev/keyboard.h"
// #include "lv_drivers/indev/mousewheel.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void hal_init(void);
static int tick_thread(void *data);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* VARIABLES
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
#if 0
static void user_image_demo()
{
lv_obj_t * img = lv_gif_create(lv_scr_act());
lv_gif_set_src(img, "A:lvgl/examples/libs/gif/bulb.gif");
lv_obj_align(img, LV_ALIGN_BOTTOM_RIGHT, -20, -20);
lv_color_t bg_color = lv_palette_lighten(LV_PALETTE_LIGHT_BLUE, 5);
lv_color_t fg_color = lv_palette_darken(LV_PALETTE_BLUE, 4);
lv_obj_t * qr = lv_qrcode_create(lv_scr_act(), 150, fg_color, bg_color);
/*Set data*/
const char * data = "https://lvgl.io";
lv_qrcode_update(qr, data, strlen(data));
lv_obj_center(qr);
/*Add a border with bg_color*/
lv_obj_set_style_border_color(qr, bg_color, 0);
lv_obj_set_style_border_width(qr, 5, 0);
/*Create a font*/
static lv_ft_info_t info;
/*FreeType uses C standard file system, so no driver letter is required.*/
info.name = "./lvgl/examples/libs/freetype/Lato-Regular.ttf";
info.weight = 24;
info.style = FT_FONT_STYLE_NORMAL;
info.mem = NULL;
if(!lv_ft_font_init(&info)) {
LV_LOG_ERROR("create failed.");
}
/*Create style with the new font*/
static lv_style_t style;
lv_style_init(&style);
lv_style_set_text_font(&style, info.font);
lv_style_set_text_align(&style, LV_TEXT_ALIGN_CENTER);
/*Create a label with the new style*/
lv_obj_t * label = lv_label_create(lv_scr_act());
lv_obj_add_style(label, &style, 0);
lv_label_set_text(label, "Hello world\nI'm a font created with FreeType");
lv_obj_set_pos(label, 10, 10);
lv_obj_t * img1 = lv_img_create(lv_scr_act());
/* Assuming a File system is attached to letter 'A'
* E.g. set LV_USE_FS_STDIO 'A' in lv_conf.h */
lv_img_set_src(img1, "A:lvgl/examples/libs/png/wink.png");
lv_obj_align(img1, LV_ALIGN_LEFT_MID, 20, 0);
lv_obj_t * wp;
wp = lv_img_create(lv_scr_act());
/* Assuming a File system is attached to letter 'A'
* E.g. set LV_USE_FS_STDIO 'A' in lv_conf.h */
lv_img_set_src(wp, "A:lvgl/examples/libs/sjpg/small_image.sjpg");
lv_obj_align(wp, LV_ALIGN_RIGHT_MID, -20, 0);
lv_obj_t * img2 = lv_img_create(lv_scr_act());
/* Assuming a File system is attached to letter 'A'
* E.g. set LV_USE_FS_STDIO 'A' in lv_conf.h */
lv_img_set_src(img2, "A:lvgl/examples/libs/sjpg/lv_example_jpg.jpg");
//lv_obj_center(img);
lv_obj_align(img2, LV_ALIGN_TOP_RIGHT, -20, 20);
lv_obj_t * img3 = lv_img_create(lv_scr_act());
/* Assuming a File system is attached to letter 'A'
* E.g. set LV_USE_FS_STDIO 'A' in lv_conf.h */
#if LV_COLOR_DEPTH == 32
lv_img_set_src(img3, "A:lvgl/examples/libs/bmp/example_32bit.bmp");
#elif LV_COLOR_DEPTH == 16
lv_img_set_src(img, "A:lvgl/examples/libs/bmp/example_16bit.bmp");
#endif
lv_obj_align(img3, LV_ALIGN_BOTTOM_MID, 0, -20);
lv_obj_t * img4 = lv_img_create(lv_scr_act());
lv_img_set_src(img4, "A:lvgl/examples/libs/ffmpeg/ffmpeg.png");
lv_obj_align(img4, LV_ALIGN_BOTTOM_LEFT, 20, -20);
lv_obj_t * player = lv_ffmpeg_player_create(lv_scr_act());
lv_ffmpeg_player_set_src(player, "./lvgl/examples/libs/ffmpeg/birds.mp4");
lv_ffmpeg_player_set_auto_restart(player, true);
lv_ffmpeg_player_set_cmd(player, LV_FFMPEG_PLAYER_CMD_START);
lv_obj_align(player, LV_ALIGN_TOP_MID, 0, 20);
}
#endif
int main(int argc, char **argv)
{
(void)argc; /*Unused*/
(void)argv; /*Unused*/
/*Initialize LVGL*/
lv_init();
/*Initialize the HAL (display, input devices, tick) for LVGL*/
hal_init();
// lv_example_switch_1();
// lv_example_calendar_1();
// lv_example_btnmatrix_2();
// lv_example_checkbox_1();
// lv_example_colorwheel_1();
// lv_example_chart_6();
// lv_example_table_2();
// lv_example_scroll_2();
// lv_example_textarea_1();
// lv_example_msgbox_1();
// lv_example_dropdown_2();
// lv_example_btn_1();
// lv_example_scroll_1();
// lv_example_tabview_1();
// lv_example_tabview_1();
// lv_example_flex_3();
// lv_example_label_1();
lv_demo_widgets();
// lv_demo_keypad_encoder();
// lv_demo_benchmark();
// lv_demo_stress();
// lv_demo_music();
// user_image_demo();
while(1) {
/* Periodically call the lv_task handler.
* It could be done in a timer interrupt or an OS task too.*/
lv_timer_handler();
usleep(5 * 1000);
}
return 0;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Initialize the Hardware Abstraction Layer (HAL) for the LVGL graphics
* library
*/
static void hal_init(void)
{
/* Use the 'monitor' driver which creates window on PC's monitor to simulate a display*/
sdl_init();
/* Tick init.
* You have to call 'lv_tick_inc()' in periodically to inform LittelvGL about
* how much time were elapsed Create an SDL thread to do this*/
SDL_CreateThread(tick_thread, "tick", NULL);
/*Create a display buffer*/
static lv_disp_draw_buf_t disp_buf1;
static lv_color_t buf1_1[MONITOR_HOR_RES * 100];
static lv_color_t buf1_2[MONITOR_HOR_RES * 100];
lv_disp_draw_buf_init(&disp_buf1, buf1_1, buf1_2, MONITOR_HOR_RES * 100);
/*Create a display*/
static lv_disp_drv_t disp_drv;
lv_disp_drv_init(&disp_drv); /*Basic initialization*/
disp_drv.draw_buf = &disp_buf1;
disp_drv.flush_cb = sdl_display_flush;
disp_drv.hor_res = MONITOR_HOR_RES;
disp_drv.ver_res = MONITOR_VER_RES;
disp_drv.antialiasing = 1;
lv_disp_t * disp = lv_disp_drv_register(&disp_drv);
lv_theme_t * th = lv_theme_default_init(disp, lv_palette_main(LV_PALETTE_BLUE), lv_palette_main(LV_PALETTE_RED), LV_THEME_DEFAULT_DARK, LV_FONT_DEFAULT);
lv_disp_set_theme(disp, th);
lv_group_t * g = lv_group_create();
lv_group_set_default(g);
/* Add the mouse as input device
* Use the 'mouse' driver which reads the PC's mouse*/
// mouse_init();
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*/
indev_drv_1.read_cb = sdl_mouse_read;
lv_indev_t *mouse_indev = lv_indev_drv_register(&indev_drv_1);
// keyboard_init();
static lv_indev_drv_t indev_drv_2;
lv_indev_drv_init(&indev_drv_2); /*Basic initialization*/
indev_drv_2.type = LV_INDEV_TYPE_KEYPAD;
indev_drv_2.read_cb = sdl_keyboard_read;
lv_indev_t *kb_indev = lv_indev_drv_register(&indev_drv_2);
lv_indev_set_group(kb_indev, g);
// mousewheel_init();
static lv_indev_drv_t indev_drv_3;
lv_indev_drv_init(&indev_drv_3); /*Basic initialization*/
indev_drv_3.type = LV_INDEV_TYPE_ENCODER;
indev_drv_3.read_cb = sdl_mousewheel_read;
lv_indev_t * enc_indev = lv_indev_drv_register(&indev_drv_3);
lv_indev_set_group(enc_indev, g);
/*Set a cursor for the mouse*/
LV_IMG_DECLARE(mouse_cursor_icon); /*Declare the image file.*/
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*/
}
/**
* A task to measure the elapsed time for LVGL
* @param data unused
* @return never return
*/
static int tick_thread(void *data) {
(void)data;
while(1) {
SDL_Delay(5);
lv_tick_inc(5); /*Tell LittelvGL that 5 milliseconds were elapsed*/
}
return 0;
}
Reference in New Issue View Git Blame Copy Permalink