Files
cinema-display/firmware/main/main.cpp
Peter Siegmund 4b2b8ed0e0 load image from file and storage
from storage doesn't work yet, because of memory issues
2025-10-09 22:51:48 +02:00

154 lines
3.6 KiB
C++

#include <lgfx.h>
#include <lvgl.h>
#include "esp_err.h"
#include "esp_log.h"
#include "ff.h"
#include "image.h"
#include "storage.h"
#define screenWidth (480)
#define screenHeight (320)
const unsigned int lvBufferSize = screenWidth * screenHeight / 10 * (LV_COLOR_DEPTH / 8);
uint8_t lvBuffer1[lvBufferSize];
uint8_t lvBuffer2[lvBufferSize];
static const char *TAG = "main";
LGFX tft;
static FATFS fs;
void setup_tft(void)
{
tft.begin();
tft.setRotation(1);
tft.setBrightness(255);
}
void flush(lv_display_t *display, const lv_area_t *area, unsigned char *data)
{
uint32_t w = lv_area_get_width(area);
uint32_t h = lv_area_get_height(area);
lv_draw_sw_rgb565_swap(data, w * h);
tft.pushImageDMA(area->x1, area->y1, w, h, (uint16_t *)data);
lv_display_flush_ready(display);
}
void my_touch_read(lv_indev_t *indev_driver, lv_indev_data_t *data)
{
uint16_t touchX, touchY;
bool touched = tft.getTouch(&touchX, &touchY);
if (!touched)
{
data->state = LV_INDEV_STATE_REL;
}
else
{
data->state = LV_INDEV_STATE_PR;
data->point.x = touchX;
data->point.y = touchY;
}
}
void fatfs_lvgl_init(void)
{
// 1. Das Dateisystem "mounten" (einmalig für FatFS)
f_mount(&fs, "S:", 1); // "S:" ist der Laufwerksbuchstabe
// 2. Eine Treiber-Variable deklarieren
static lv_fs_drv_t drv;
lv_fs_drv_init(&drv); // Treiberstruktur initialisieren
// 3. Unsere Bridge-Funktionen zuweisen
drv.letter = 'S'; // WICHTIG: Muss mit dem Buchstaben in f_mount übereinstimmen
drv.open_cb = fs_open;
drv.close_cb = fs_close;
drv.read_cb = fs_read;
drv.seek_cb = fs_seek;
drv.tell_cb = fs_tell;
// 4. Den Treiber bei LVGL registrieren
lv_fs_drv_register(&drv);
}
void esp_lv_log_print(lv_log_level_t level, const char *buf)
{
switch (level)
{
case LV_LOG_LEVEL_TRACE:
ESP_LOGV("LVGL", "%s", buf);
break;
case LV_LOG_LEVEL_INFO:
ESP_LOGI("LVGL", "%s", buf);
break;
case LV_LOG_LEVEL_WARN:
ESP_LOGW("LVGL", "%s", buf);
break;
case LV_LOG_LEVEL_ERROR:
ESP_LOGE("LVGL", "%s", buf);
break;
case LV_LOG_LEVEL_USER:
ESP_LOGI("LVGL", "%s", buf);
break;
case LV_LOG_LEVEL_NONE:
break;
}
}
void setup()
{
setup_tft();
lv_init();
lv_log_register_print_cb(esp_lv_log_print);
fs_mount();
fatfs_lvgl_init();
static auto *display = lv_display_create(screenWidth, screenHeight);
lv_display_set_color_format(display, LV_COLOR_FORMAT_RGB565);
lv_display_set_flush_cb(display, flush);
lv_display_set_buffers(display, lvBuffer1, lvBuffer2, lvBufferSize, LV_DISPLAY_RENDER_MODE_PARTIAL);
static auto *lvInput = lv_indev_create();
lv_indev_set_type(lvInput, LV_INDEV_TYPE_POINTER);
lv_indev_set_read_cb(lvInput, my_touch_read);
ESP_LOGI(TAG, "create image");
#ifndef LOCAL
static auto *image = lv_image_create(lv_scr_act());
lv_image_set_src(image, &image_data);
lv_obj_align(image, LV_ALIGN_TOP_LEFT, 0, 0);
#else
lv_obj_t *img = lv_image_create(lv_screen_active());
lv_image_set_src(img, "S:/response.png"); // Pfad beginnt mit "S:"
lv_obj_center(img);
#endif
ESP_LOGI(TAG, "image created");
}
void loop()
{
lv_tick_inc(10);
lv_timer_handler();
vTaskDelay(pdMS_TO_TICKS(10));
}
void lvgl_task(void *pvParameter)
{
setup();
while (1)
{
loop();
}
fs_unmount();
}
extern "C" void app_main(void)
{
xTaskCreatePinnedToCore(lvgl_task, "lvgl_task", 8192, NULL, 5, NULL, 1);
}