Add SDL option to BaseUI on Native (#7568)

* Add SDL option to BaseUI on Native

* Update to latest LovyanGFX PR and use LGFX_SDL define

* Move SDL backend to native-sdl target

src/graphics/TFTDisplay.cpp

@@ -667,15 +667,19 @@ static LGFX *tft = nullptr;
 static TFT_eSPI *tft = nullptr; // Invoke library, pins defined in User_Setup.h
 #elif ARCH_PORTDUINO
 #include <LovyanGFX.hpp> // Graphics and font library for ST7735 driver chip
+#if defined(LGFX_SDL)
+#include <lgfx/v1/platforms/sdl/Panel_sdl.hpp>
+#endif
 
 class LGFX : public lgfx::LGFX_Device
 {
-    lgfx::Panel_Device *_panel_instance;
     lgfx::Bus_SPI _bus_instance;
 
     lgfx::ITouch *_touch_instance;
 
   public:
+    lgfx::Panel_Device *_panel_instance;
+
     LGFX(void)
     {
         if (settingsMap[displayPanel] == st7789)
@@ -694,6 +698,11 @@ class LGFX : public lgfx::LGFX_Device
             _panel_instance = new lgfx::Panel_ILI9488;
         else if (settingsMap[displayPanel] == hx8357d)
             _panel_instance = new lgfx::Panel_HX8357D;
+#if defined(LGFX_SDL)
+        else if (settingsMap[displayPanel] == x11) {
+            _panel_instance = new lgfx::Panel_sdl;
+        }
+#endif
         else {
             _panel_instance = new lgfx::Panel_NULL;
             LOG_ERROR("Unknown display panel configured!");
@@ -754,7 +763,13 @@ class LGFX : public lgfx::LGFX_Device
             _touch_instance->config(touch_cfg);
             _panel_instance->setTouch(_touch_instance);
         }
-
+#if defined(LGFX_SDL)
+        if (settingsMap[displayPanel] == x11) {
+            lgfx::Panel_sdl *sdl_panel_ = (lgfx::Panel_sdl *)_panel_instance;
+            sdl_panel_->setup();
+            sdl_panel_->addKeyCodeMapping(SDLK_RETURN, SDL_SCANCODE_KP_ENTER);
+        }
+#endif
         setPanel(_panel_instance); // Sets the panel to use.
     }
 };
@@ -1060,6 +1075,49 @@ void TFTDisplay::display(bool fromBlank)
     }
 }
 
+void TFTDisplay::sdlLoop()
+{
+#if defined(LGFX_SDL)
+    static int lastPressed = 0;
+    static int shuttingDown = false;
+    if (settingsMap[displayPanel] == x11) {
+        lgfx::Panel_sdl *sdl_panel_ = (lgfx::Panel_sdl *)tft->_panel_instance;
+        if (sdl_panel_->loop() && !shuttingDown) {
+            LOG_WARN("Window Closed!");
+            InputEvent event = {.inputEvent = (input_broker_event)INPUT_BROKER_SHUTDOWN, .kbchar = 0, .touchX = 0, .touchY = 0};
+            inputBroker->injectInputEvent(&event);
+        }
+
+        // debounce
+        if (lastPressed != 0 && !lgfx::v1::gpio_in(lastPressed))
+            return;
+        if (!lgfx::v1::gpio_in(37)) {
+            lastPressed = 37;
+            InputEvent event = {.inputEvent = (input_broker_event)INPUT_BROKER_RIGHT, .kbchar = 0, .touchX = 0, .touchY = 0};
+            inputBroker->injectInputEvent(&event);
+        } else if (!lgfx::v1::gpio_in(36)) {
+            lastPressed = 36;
+            InputEvent event = {.inputEvent = (input_broker_event)INPUT_BROKER_UP, .kbchar = 0, .touchX = 0, .touchY = 0};
+            inputBroker->injectInputEvent(&event);
+        } else if (!lgfx::v1::gpio_in(38)) {
+            lastPressed = 38;
+            InputEvent event = {.inputEvent = (input_broker_event)INPUT_BROKER_DOWN, .kbchar = 0, .touchX = 0, .touchY = 0};
+            inputBroker->injectInputEvent(&event);
+        } else if (!lgfx::v1::gpio_in(39)) {
+            lastPressed = 39;
+            InputEvent event = {.inputEvent = (input_broker_event)INPUT_BROKER_LEFT, .kbchar = 0, .touchX = 0, .touchY = 0};
+            inputBroker->injectInputEvent(&event);
+        } else if (!lgfx::v1::gpio_in(SDL_SCANCODE_KP_ENTER)) {
+            lastPressed = SDL_SCANCODE_KP_ENTER;
+            InputEvent event = {.inputEvent = (input_broker_event)INPUT_BROKER_SELECT, .kbchar = 0, .touchX = 0, .touchY = 0};
+            inputBroker->injectInputEvent(&event);
+        } else {
+            lastPressed = 0;
+        }
+    }
+#endif
+}
+
 // Send a command to the display (low level function)
 void TFTDisplay::sendCommand(uint8_t com)
 {

src/graphics/TFTDisplay.h

@@ -23,6 +23,7 @@ class TFTDisplay : public OLEDDisplay
     // Write the buffer to the display memory
     virtual void display() override { display(false); };
     virtual void display(bool fromBlank);
+    void sdlLoop();
 
     // Turn the display upside down
     virtual void flipScreenVertically();

src/main.cpp

@@ -1562,7 +1562,13 @@ void loop()
 #endif
 
     service->loop();
-
+#if defined(LGFX_SDL)
+    if (screen) {
+        auto dispdev = screen->getDisplayDevice();
+        if (dispdev)
+            static_cast<TFTDisplay *>(dispdev)->sdlLoop();
+    }
+#endif
     long delayMsec = mainController.runOrDelay();
 
     // We want to sleep as long as possible here - because it saves power