MUI: portduino SDL support for Linux/Windows

.github/workflows/build_windows_bin.yml

@@ -48,6 +48,7 @@ jobs:
             mingw-w64-ucrt-x86_64-jsoncpp
             mingw-w64-ucrt-x86_64-openssl
             mingw-w64-ucrt-x86_64-libusb
+            mingw-w64-ucrt-x86_64-SDL2
             mingw-w64-ucrt-x86_64-cmake
             mingw-w64-ucrt-x86_64-ninja
             git

platformio.ini

@@ -128,7 +128,7 @@ lib_deps =
 [device-ui_base]
 lib_deps =
 	# renovate: datasource=git-refs depName=meshtastic/device-ui packageName=https://github.com/meshtastic/device-ui gitBranch=master
-	https://github.com/meshtastic/device-ui/archive/ef573c368767625ffbe8c32cf921ea7366f2dd53.zip
+	https://github.com/meshtastic/device-ui/archive/58abaa541411eb38d813c925c4b3296f0a297169.zip
 
 ; Common libs for environmental measurements in telemetry module
 [environmental_base]

src/graphics/tftSetup.cpp

@@ -38,6 +38,15 @@ void tft_task_handler(void *param = nullptr)
     }
 }
 
+#if defined(ARCH_PORTDUINO)
+void tft_thread_entry(void)
+{
+    // SDL expects window/event/render work on a single thread.
+    deviceScreen->init(new PacketClient);
+    tft_task_handler();
+}
+#endif
+
 void tftSetup(void)
 {
 #ifndef ARCH_PORTDUINO
@@ -47,27 +56,28 @@ void tftSetup(void)
 #else
     if (portduino_config.displayPanel != no_screen) {
         DisplayDriverConfig displayConfig;
-        static char *panels[] = {"NOSCREEN", "X11",     "FB",      "ST7789",  "ST7735",  "ST7735S",
-                                 "ST7796",   "ILI9341", "ILI9342", "ILI9486", "ILI9488", "HX8357D"};
+        static char *panels[] = {"NOSCREEN", "X11",     "SDL",     "FB",      "ST7789",  "ST7735",  "ST7735S",
+                                 "ST7796",   "ILI9341", "ILI9342", "ILI9486", "ILI9488", "HX8357D", "HUB75"};
         static char *touch[] = {"NOTOUCH", "XPT2046", "STMPE610", "GT911", "FT5x06"};
-#if defined(USE_X11)
-        if (portduino_config.displayPanel == x11) {
+        if (portduino_config.displayPanel == sdl) {
+            if (portduino_config.displayWidth && portduino_config.displayHeight)
+                displayConfig = DisplayDriverConfig(DisplayDriverConfig::device_t::SDL, (uint16_t)portduino_config.displayWidth,
+                                                    (uint16_t)portduino_config.displayHeight, portduino_config.displayZoom);
+            else
+                displayConfig.device(DisplayDriverConfig::device_t::SDL);
+        } else if (portduino_config.displayPanel == x11) {
             if (portduino_config.displayWidth && portduino_config.displayHeight)
                 displayConfig = DisplayDriverConfig(DisplayDriverConfig::device_t::X11, (uint16_t)portduino_config.displayWidth,
                                                     (uint16_t)portduino_config.displayHeight);
             else
                 displayConfig.device(DisplayDriverConfig::device_t::X11);
-        } else
-#elif defined(USE_FRAMEBUFFER)
-        if (portduino_config.displayPanel == fb) {
+        } else if (portduino_config.displayPanel == fb) {
             if (portduino_config.displayWidth && portduino_config.displayHeight)
                 displayConfig = DisplayDriverConfig(DisplayDriverConfig::device_t::FB, (uint16_t)portduino_config.displayWidth,
                                                     (uint16_t)portduino_config.displayHeight);
             else
                 displayConfig.device(DisplayDriverConfig::device_t::FB);
-        } else
-#endif
-        {
+        } else {
             displayConfig.device(DisplayDriverConfig::device_t::CUSTOM_TFT)
                 .panel(DisplayDriverConfig::panel_config_t{.type = panels[portduino_config.displayPanel],
                                                            .panel_width = (uint16_t)portduino_config.displayWidth,
@@ -121,7 +131,6 @@ void tftSetup(void)
         }
         deviceScreen = &DeviceScreen::create(&displayConfig);
         PacketAPI::create(PacketServer::init());
-        deviceScreen->init(new PacketClient);
     } else {
         LOG_INFO("Running without TFT display!");
     }
@@ -133,7 +142,7 @@ void tftSetup(void)
         endSleepObserver.observe(&notifyLightSleepEnd);
         xTaskCreatePinnedToCore(tft_task_handler, "tft", TFT_TASK_STACK_SIZE, NULL, 1, NULL, 0);
 #elif defined(ARCH_PORTDUINO)
-        std::thread *tft_task = new std::thread([] { tft_task_handler(); });
+        std::thread *tft_task = new std::thread([] { tft_thread_entry(); });
 #endif
     }
 }

src/main.cpp

@@ -1476,8 +1476,8 @@ void loop()
             rebootAtMsec = millis() + 25;
         }
     }
-#if HAS_TFT
-    if (screen && portduino_config.displayPanel == x11 &&
+#if HAS_TFT && HAS_SCREEN
+    if (screen && (portduino_config.displayPanel == sdl) &&
         config.display.displaymode != meshtastic_Config_DisplayConfig_DisplayMode_COLOR) {
         auto dispdev = screen->getDisplayDevice();
         if (dispdev)

src/platform/portduino/PortduinoGlue.cpp

@@ -1050,6 +1050,7 @@ bool loadConfig(const char *configPath)
             }
             portduino_config.displayHeight = yamlConfig["Display"]["Height"].as<int>(0);
             portduino_config.displayWidth = yamlConfig["Display"]["Width"].as<int>(0);
+            portduino_config.displayZoom = yamlConfig["Display"]["Zoom"].as<float>(1.0);
 
             readGPIOFromYaml(yamlConfig["Display"]["DC"], portduino_config.displayDC, -1);
             readGPIOFromYaml(yamlConfig["Display"]["CS"], portduino_config.displayCS, -1);

src/platform/portduino/PortduinoGlue.h

@@ -34,7 +34,22 @@ inline const std::unordered_map<std::string, std::string> configProducts = {
     {"RAK6421-13300-S1", "lora-RAK6421-13300-slot1.yaml"},
     {"RAK6421-13300-S2", "lora-RAK6421-13300-slot2.yaml"}};
 
-enum screen_modules { no_screen, x11, fb, st7789, st7735, st7735s, st7796, ili9341, ili9342, ili9486, ili9488, hx8357d, hub75 };
+enum screen_modules {
+    no_screen,
+    x11,
+    sdl,
+    fb,
+    st7789,
+    st7735,
+    st7735s,
+    st7796,
+    ili9341,
+    ili9342,
+    ili9486,
+    ili9488,
+    hx8357d,
+    hub75
+};
 enum touchscreen_modules { no_touchscreen, xpt2046, stmpe610, gt911, ft5x06 };
 enum portduino_log_level { level_error, level_warn, level_info, level_debug, level_trace };
 enum lora_module_enum {
@@ -80,10 +95,10 @@ extern struct portduino_config_struct {
         {use_simradio, "sim"},  {use_autoconf, "auto"}, {use_rf95, "RF95"},     {use_sx1262, "sx1262"}, {use_sx1268, "sx1268"},
         {use_sx1280, "sx1280"}, {use_lr1110, "lr1110"}, {use_lr1120, "lr1120"}, {use_lr1121, "lr1121"}, {use_llcc68, "LLCC68"}};
 
-    std::map<screen_modules, std::string> screen_names = {{x11, "X11"},         {fb, "FB"},           {st7789, "ST7789"},
-                                                          {st7735, "ST7735"},   {st7735s, "ST7735S"}, {st7796, "ST7796"},
-                                                          {ili9341, "ILI9341"}, {ili9342, "ILI9342"}, {ili9486, "ILI9486"},
-                                                          {ili9488, "ILI9488"}, {hx8357d, "HX8357D"}, {hub75, "HUB75"}};
+    std::map<screen_modules, std::string> screen_names = {
+        {x11, "X11"},         {sdl, "SDL"},         {fb, "FB"},           {st7789, "ST7789"},   {st7735, "ST7735"},
+        {st7735s, "ST7735S"}, {st7796, "ST7796"},   {ili9341, "ILI9341"}, {ili9342, "ILI9342"}, {ili9486, "ILI9486"},
+        {ili9488, "ILI9488"}, {hx8357d, "HX8357D"}, {hub75, "HUB75"}};
 
     lora_module_enum lora_module;
     bool has_rfswitch_table = false;
@@ -134,6 +149,7 @@ extern struct portduino_config_struct {
     screen_modules displayPanel = no_screen;
     int displayWidth = 0;
     int displayHeight = 0;
+    float displayZoom = 1.0;
     bool displayRGBOrder = false;
     bool displayBacklightInvert = false;
     bool displayRotate = false;
@@ -431,6 +447,8 @@ extern struct portduino_config_struct {
                 out << YAML::Key << "Width" << YAML::Value << displayWidth;
             if (displayHeight)
                 out << YAML::Key << "Height" << YAML::Value << displayHeight;
+            if (displayZoom != 1.0)
+                out << YAML::Key << "Zoom" << YAML::Value << displayZoom;
             if (displayRGBOrder)
                 out << YAML::Key << "RGBOrder" << YAML::Value << true;
             if (displayBacklightInvert)
@@ -445,7 +463,6 @@ extern struct portduino_config_struct {
                 out << YAML::Key << "OffsetY" << YAML::Value << displayOffsetY;
 
             out << YAML::Key << "OffsetRotate" << YAML::Value << displayOffsetRotate;
-
             if (displayPanel == hub75) {
                 out << YAML::Key << "HUB75" << YAML::Value << YAML::BeginMap;
                 out << YAML::Key << "HardwareMapping" << YAML::Value << hub75_hardware_mapping;

variants/native/portduino/platformio.ini

@@ -34,12 +34,14 @@ lib_deps =
   ${device-ui_base.lib_deps}
 build_flags = ${native_base.build_flags} -Os -lX11 -linput -lxkbcommon -ffunction-sections -fdata-sections -Wl,--gc-sections
   -D RAM_SIZE=16384
-  -D USE_X11=1
   -D HAS_TFT=1
   -D HAS_SCREEN=1
-  -D LV_CACHE_DEF_SIZE=6291456
-  -D LV_BUILD_TEST=0
+  -D USE_X11=1
+  -D USE_SDL=1
+  -D LV_USE_EVDEV=1
   -D LV_USE_LIBINPUT=1
+;  -D LV_CACHE_DEF_SIZE=6291456
+  -D LV_BUILD_TEST=0
   -D LV_LVGL_H_INCLUDE_SIMPLE
   -D LV_CONF_INCLUDE_SIMPLE
   -D LV_COMP_CONF_INCLUDE_SIMPLE
@@ -261,7 +263,7 @@ lib_ignore = ${env:native-macos.lib_ignore}
 ; firmware builds as gnu17/gnu++17 with GNU extensions throughout.
 ;
 ; Prerequisites (MSYS2, https://www.msys2.org/):
-;   pacman -S --needed mingw-w64-ucrt-x86_64-{gcc,pkgconf,yaml-cpp,libuv,jsoncpp,openssl,libusb}
+;   pacman -S --needed mingw-w64-ucrt-x86_64-{gcc,pkgconf,yaml-cpp,libuv,jsoncpp,openssl,libusb,SDL2}
 ;
 ; argp is not packaged for MSYS2's mingw environments (msys/libargp links the
 ; msys-2.0.dll emulation layer and can't be used for a native binary), yet
@@ -305,7 +307,28 @@ build_flags = ${portduino_base.build_flags_common}
   ; screen renderer; EXCLUDE_SCREEN gates the `screen->...` hooks in the sensors.
   -DHAS_SCREEN=0
   -DMESHTASTIC_EXCLUDE_SCREEN=1
-  !pkg-config --cflags --libs openssl --silence-errors || :
+  ; MUI
+  -D RAM_SIZE=16384
+  -D HAS_TFT=1
+  -D USE_SDL=1
+  -D LV_USE_LOG=0
+  -D LV_USE_EVDEV=1
+;  -D LV_CACHE_DEF_SIZE=6291456
+  -D LV_BUILD_TEST=0
+  -D LV_LVGL_H_INCLUDE_SIMPLE
+  -D LV_CONF_INCLUDE_SIMPLE
+  -D LV_COMP_CONF_INCLUDE_SIMPLE
+  -D USE_LOG_DEBUG
+  -D LOG_DEBUG_INC=\"DebugConfiguration.h\"
+  -D USE_PACKET_API
+  -D VIEW_320x240
+  ; NOTE: PlatformIO invokes this env with a Windows shell, use `cmd /c exit 0` as a Windows-safe fallback.
+  ; pkg-config must be in user environment path, e.g. C:\msys64\ucrt64\bin
+  ; and the .pc files must be in PKG_CONFIG_PATH, e.g. C:\msys64\ucrt64\lib\pkgconfig
+  !pkg-config --cflags --libs openssl --silence-errors || cmd /c exit 0
+  !pkg-config --cflags-only-I --libs --static sdl2 --silence-errors || cmd /c exit 0
+  !pkg-config --cflags --libs --static libcurl --silence-errors || cmd /c exit 0
+  -Wl,-subsystem,console
 build_unflags =
   -fPIC ; ignored on Windows, where all code is position-independent
 ; Static link, so meshtasticd.exe stands alone and can't be hijacked by a stray
@@ -320,12 +343,14 @@ build_src_filter = ${native_base.build_src_filter}
   -<input/LinuxInputImpl.cpp>
   -<graphics/Panel_sdl.cpp>
   -<graphics/TFTDisplay.cpp>
-; LovyanGFX includes <malloc.h> and is only needed by the TFT variants. The pine64
-; libch341 is the libusb backend that libpinedio_ch341dll.c replaces; keeping both
+
+lib_deps =
+  ${native_base.lib_deps}
+  ${device-ui_base.lib_deps}
+; Pine libch341 is the libusb backend that libpinedio_ch341dll.c replaces; keeping both
 ; would duplicate every pinedio_* symbol.
 lib_ignore =
   ${portduino_base.lib_ignore}
-  LovyanGFX
   Pine libch341-spi Userspace library
 
 ; ---------------------------------------------------------------------------