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Configurations for the new lvgl version

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This commit is contained in:
Joachim
2020-08-27 16:56:30 +02:00
parent 7285fd4a9e
commit 4b50a9055d
1 changed files with 43 additions and 28 deletions
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71
esp32/examples/ttgo_demo/main/app_screen.cpp
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@ -5,6 +5,7 @@
#include <errno.h> #include <errno.h>
#include <sys/stat.h> #include <sys/stat.h>
#include <string.h> #include <string.h>
#include "esp_freertos_hooks.h"
#include "freertos/FreeRTOS.h" #include "freertos/FreeRTOS.h"
#include "freertos/task.h" #include "freertos/task.h"
#include "esp_system.h" #include "esp_system.h"
@ -398,33 +399,58 @@ exit:
fclose(dev.fhndl); // close input file fclose(dev.fhndl); // close input file
} }
// =====================================================================================================================
// lvgl
// =====================================================================================================================
#include "lvgl.h" #include "lvgl.h"
/*Write the internal buffer (VDB) to the display. 'lv_flush_ready()' has to be called when finished*/ /* lvgl internal graphics buffers */
static void ex_disp_flush(int32_t x1, int32_t y1, int32_t x2, int32_t y2, const lv_color_t *color_p) #define DISP_BUF_SIZE LV_HOR_RES_MAX * 24 // Horizontal resolution X number of lines sent to the driver
static lv_disp_buf_t disp_buf;
static lv_color_t buf_1[DISP_BUF_SIZE];
static lv_color_t buf_2[DISP_BUF_SIZE];
/*Write the internal buffer to the display. 'lv_flush_ready()' has to be called when finished*/
static void ex_disp_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
{ {
tft->drawBitmap((int16_t)x1, (int16_t)y1, (const uint16_t *)color_p, (int16_t)(x2 - x1 + 1), (int16_t)(y2 - y1 + 1)); tft->drawBitmap((int16_t)area->x1, (int16_t)area->y1, (const uint16_t *)color_p, (int16_t)(area->x2 - area->x1 + 1), (int16_t)(area->y2 - area->y1 + 1));
/* IMPORTANT!!! /* IMPORTANT!!!
* Inform the graphics library that you are ready with the flushing*/ * Inform the graphics library that you are ready with the flushing*/
lv_flush_ready(); lv_disp_t *disp = _lv_refr_get_disp_refreshing();
lv_disp_flush_ready(&disp->driver);
} }
/*Fill an area with a color on the display*/ /*Calls `lv_tick_inc()` at regular interval to inform lvgl of elapsed time*/
static void ex_disp_fill(int32_t x1, int32_t y1, int32_t x2, int32_t y2, lv_color_t color) static void IRAM_ATTR lv_tick_cb(void) {
lv_tick_inc(portTICK_RATE_MS);
}
void lvgl_init()
{ {
tft->fillRect((int16_t)x1, (int16_t)y1, (int16_t)(x2 - x1 + 1), (int16_t)(y2 - y1 + 1), (uint16_t)color.full); /* register lvgl tick callback function */
} esp_register_freertos_tick_hook(lv_tick_cb);
/*Write pixel map (e.g. image) to the display*/ /*lvgl initialize*/
static void ex_disp_map(int32_t x1, int32_t y1, int32_t x2, int32_t y2, const lv_color_t *color_p) lv_init();
{
tft->drawBitmap((int16_t)x1, (int16_t)y1, (const uint16_t *)color_p, (int16_t)(x2 - x1 + 1), (int16_t)(y2 - y1 + 1)); /* init display buffers */
lv_disp_buf_init(&disp_buf, buf_1, buf_2, DISP_BUF_SIZE);
/* screen driver */
lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
lv_disp_drv_init(&disp_drv); /*Basic initialization*/
disp_drv.flush_cb = ex_disp_flush;
disp_drv.buffer = &disp_buf;
/* Finally register the driver */
lv_disp_drv_register(&disp_drv);
} }
// todo: separate lcv_hal_init() and lvgl_init()
void lvgl_lcd_hal_init() void lvgl_lcd_hal_init()
{ {
lcd_conf_t lcd_pins = { lcd_conf_t lcd_pins = {
.lcd_model = LCD_MOD_ST7789, .lcd_model = LCD_MOD_ST7789,
.pin_num_miso = TFT_MISO, .pin_num_miso = TFT_MISO,
@ -448,20 +474,9 @@ void lvgl_lcd_hal_init()
/*screen initialize*/ /*screen initialize*/
tft->invertDisplay(true); tft->invertDisplay(true);
tft->setRotation(2); // rotation needed if camera is on the back of the device tft->setRotation(0);
tft->fillScreen(COLOR_BLACK); tft->fillScreen(COLOR_BLACK);
lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/ /*init lvgl*/
lv_disp_drv_init(&disp_drv); /*Basic initialization*/ lvgl_init();
/* Set up the functions to access to your display */
if (LV_VDB_SIZE != 0) {
disp_drv.disp_flush = ex_disp_flush; /*Used in buffered mode (LV_VDB_SIZE != 0 in lv_conf.h)*/
} else if (LV_VDB_SIZE == 0) {
disp_drv.disp_fill = ex_disp_fill; /*Used in unbuffered mode (LV_VDB_SIZE == 0 in lv_conf.h)*/
disp_drv.disp_map = ex_disp_map; /*Used in unbuffered mode (LV_VDB_SIZE == 0 in lv_conf.h)*/
}
/* Finally register the driver */
lv_disp_drv_register(&disp_drv);
} }