84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/*****************************************************************************
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| File : LVGL_Driver.c
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| help :
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The provided LVGL library file must be installed first
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******************************************************************************/
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#include "LVGL_Driver.h"
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static lv_disp_draw_buf_t draw_buf;
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static lv_color_t buf1[ LVGL_BUF_LEN ];
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static lv_color_t buf2[ LVGL_BUF_LEN ];
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// static lv_color_t* buf1 = (lv_color_t*) heap_caps_malloc(LVGL_BUF_LEN, MALLOC_CAP_SPIRAM);
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// static lv_color_t* buf2 = (lv_color_t*) heap_caps_malloc(LVGL_BUF_LEN, MALLOC_CAP_SPIRAM);
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/* Serial debugging */
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void Lvgl_print(const char * buf)
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{
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// Serial.printf(buf);
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// Serial.flush();
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}
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/* Display flushing
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Displays LVGL content on the LCD
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This function implements associating LVGL data to the LCD screen
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*/
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void Lvgl_Display_LCD( lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p )
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{
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LCD_addWindow(area->x1, area->y1, area->x2, area->y2, ( uint16_t *)&color_p->full);
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lv_disp_flush_ready( disp_drv );
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}
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/*Read the touchpad*/
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void Lvgl_Touchpad_Read( lv_indev_drv_t * indev_drv, lv_indev_data_t * data )
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{
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// NULL
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}
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void example_increase_lvgl_tick(void *arg)
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{
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/* Tell LVGL how many milliseconds has elapsed */
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lv_tick_inc(EXAMPLE_LVGL_TICK_PERIOD_MS);
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}
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void Lvgl_Init(void)
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{
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lv_init();
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lv_disp_draw_buf_init( &draw_buf, buf1, buf2, LVGL_BUF_LEN);
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/*Initialize the display*/
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static lv_disp_drv_t disp_drv;
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lv_disp_drv_init( &disp_drv );
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/*Change the following line to your display resolution*/
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disp_drv.hor_res = LVGL_WIDTH;
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disp_drv.ver_res = LVGL_HEIGHT;
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disp_drv.flush_cb = Lvgl_Display_LCD;
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disp_drv.full_refresh = 1; /**< 1: Always make the whole screen redrawn*/
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disp_drv.draw_buf = &draw_buf;
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lv_disp_drv_register( &disp_drv );
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/*Initialize the (dummy) input device driver*/
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static lv_indev_drv_t indev_drv;
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lv_indev_drv_init( &indev_drv );
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indev_drv.type = LV_INDEV_TYPE_POINTER;
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indev_drv.read_cb = Lvgl_Touchpad_Read;
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lv_indev_drv_register( &indev_drv );
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/* Create simple label */
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lv_obj_t *label = lv_label_create( lv_scr_act() );
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lv_label_set_text( label, "Hello Ardino and LVGL!");
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lv_obj_align( label, LV_ALIGN_CENTER, 0, 0 );
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const esp_timer_create_args_t lvgl_tick_timer_args = {
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.callback = &example_increase_lvgl_tick,
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.name = "lvgl_tick"
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};
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esp_timer_handle_t lvgl_tick_timer = NULL;
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esp_timer_create(&lvgl_tick_timer_args, &lvgl_tick_timer);
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esp_timer_start_periodic(lvgl_tick_timer, EXAMPLE_LVGL_TICK_PERIOD_MS * 1000);
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}
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void Timer_Loop(void)
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{
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lv_timer_handler(); /* let the GUI do its work */
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// delay( 5 );
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} |