feat: add SDL support

include/graphics/driver/SDLDriver.h

@@ -0,0 +1,22 @@
+#pragma once
+#include "graphics/driver/DisplayDriver.h"
+
+/**
+ * @brief For simulation on pc/raspberry
+ * This class provides an SDL GUI on the local desktop; dimensions are defined
+ * in lv_drv_conf.h Usage: define USE_SDL=1 for the rasbian/portduino target and
+ * link with -lSDL
+ */
+class SDLDriver : public DisplayDriver
+{
+  public:
+    static SDLDriver &create(uint16_t width, uint16_t height);
+    void init(DeviceGUI *gui) override;
+    void task_handler(void) override;
+    virtual ~SDLDriver() {}
+
+  private:
+    SDLDriver(uint16_t width, uint16_t height);
+
+    static SDLDriver *SDLdriver;
+};

include/graphics/driver/TFTDriver.h

@@ -25,13 +25,12 @@ template <class TFT> void TFTDriver<TFT>::init(DeviceGUI *gui)
     lv_tick_set_cb(xTaskGetTickCount);
 #else
     // Create esp timer to call lvgl lv_tick_inc()
-    const esp_timer_create_args_t lvgl_tick_timer_args = {.callback = [](void *arg) { lv_tick_inc(20); }, .name = "lvgl_tick"};
+    const esp_timer_create_args_t lvgl_tick_timer_args = {.callback = [](void *arg) { lv_tick_inc(5); }, .name = "lvgl_tick"};
     esp_timer_handle_t lvgl_tick_timer = nullptr;
     ESP_ERROR_CHECK(esp_timer_create(&lvgl_tick_timer_args, &lvgl_tick_timer));
-    ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, 20000));
+    ESP_ERROR_CHECK(esp_timer_start_periodic(lvgl_tick_timer, 5000));
 #endif
 #elif defined(ARCH_PORTDUINO)
-    // for linux we use lv_tick_inc() in DeviceGUI::task_handler()
-    // lv_tick_set_cb([]() -> uint32_t { return millis(); });
+    lv_tick_set_cb([]() -> uint32_t { return millis(); });
 #endif
 }

include/graphics/driver/X11Driver.h

@@ -12,6 +12,7 @@ class X11Driver : public DisplayDriver
   public:
     static X11Driver &create(uint16_t width, uint16_t height);
     void init(DeviceGUI *gui) override;
+    void task_handler(void) override;
     virtual ~X11Driver() {}
 
   private: