| commit | author | age | ||
| b64b1d | 1 | /********************************************************************************* |
| G | 2 | * Copyright: (C) 2021 LingYun IoT System Studio |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Filename: lvgl_demo.c | |
| 6 | * Description: This file is LVGL demo program. | |
| 7 | * | |
| 8 | * Version: 1.0.0(2021年09月27日) | |
| 9 | * Author: Guo Wenxue <guowenxue@gmail.com> | |
| 10 | * ChangeLog: 1, Release initial version on "2021年09月27日 22时16分52秒" | |
| 11 | * | |
| 12 | ********************************************************************************/ | |
| 13 | ||
| 14 | #include <stdio.h> | |
| 15 | #include <unistd.h> | |
| 16 | #include <pthread.h> | |
| 17 | #include <time.h> | |
| 18 | #include <sys/time.h> | |
| 19 | ||
| 20 | #include "lvgl/lvgl.h" | |
| 21 | #include "lv_drivers/display/fbdev.h" | |
| 22 | #include "lv_drivers/indev/evdev.h" | |
| 23 | #include "lv_demos/lv_demo.h" | |
| 24 | ||
| 25 | #define DISP_BUF_SIZE (128 * 1024) | |
| 26 | ||
| 27 | ||
| 28 | int main(void) | |
| 29 | { | |
| 30 | lv_disp_drv_t disp_drv; | |
| 31 | lv_indev_drv_t indev_drv; | |
| 32 | static lv_color_t buf[DISP_BUF_SIZE]; /* buffer for LVGL to draw the screen's content */ | |
| 33 | static lv_disp_draw_buf_t disp_buf; /* Initialize a descriptor for the buffer */ | |
| 34 | ||
| 35 | /* LVGL context init */ | |
| 36 | lv_init(); | |
| 37 | ||
| 38 | /* Linux frame buffer device init */ | |
| 39 | fbdev_init(); | |
| 40 | ||
| 41 | /* linux touchscreen device init */ | |
| 42 | lv_indev_drv_init(&indev_drv); | |
| 43 | indev_drv.type =LV_INDEV_TYPE_POINTER; | |
| 44 | indev_drv.read_cb =evdev_read; | |
| 45 | lv_indev_drv_register(&indev_drv); | |
| 46 | ||
| 47 | /* Initialize and register a display driver */ | |
| 48 | lv_disp_draw_buf_init(&disp_buf, buf, NULL, DISP_BUF_SIZE); | |
| 49 | lv_disp_drv_init(&disp_drv); | |
| 50 | disp_drv.draw_buf = &disp_buf; | |
| 51 | disp_drv.flush_cb = fbdev_flush; | |
| 52 | disp_drv.hor_res = 800; | |
| 53 | disp_drv.ver_res = 480; | |
| 54 | lv_disp_drv_register(&disp_drv); | |
| 55 | ||
| 56 | /* Create a Demo */ | |
| 57 | //lv_demo_widgets(); | |
| 58 | lv_demo_music(); | |
| 59 | //lv_demo_keypad_encoder(); | |
| 60 | //lv_demo_stress(); | |
| 61 | ||
| 62 | /* Handle LitlevGL tasks (tickless mode) */ | |
| 63 | while(1) { | |
| 64 | lv_task_handler(); | |
| 65 | usleep(5000); | |
| 66 | } | |
| 67 | ||
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | /* Set in lv_conf.h as LV_TICK_CUSTOM_SYS_TIME_EXPR */ | |
| 72 | uint32_t millis(void) | |
| 73 | { | |
| 74 | static uint64_t start_ms = 0; | |
| 75 | struct timeval tv_start; | |
| 76 | struct timeval tv_now; | |
| 77 | uint64_t now_ms; | |
| 78 | uint32_t time_ms; | |
| 79 | ||
| 80 | if(start_ms == 0) | |
| 81 | { | |
| 82 | gettimeofday(&tv_start, NULL); | |
| 83 | start_ms = (tv_start.tv_sec * 1000000 + tv_start.tv_usec) / 1000; | |
| 84 | } | |
| 85 | ||
| 86 | gettimeofday(&tv_now, NULL); | |
| 87 | now_ms = (tv_now.tv_sec * 1000000 + tv_now.tv_usec) / 1000; | |
| 88 | ||
| 89 | time_ms = now_ms - start_ms; | |
| 90 | return time_ms; | |
| 91 | } | |
