Implement posix app loading (#643)

- Added POSIX desktop support for SDK builds, application packaging, and integration testing.
- Added POSIX filesystem partitions and improved application path handling.
- Added simulator support for loading and running applications dynamically.
- Improved simulator task stack handling and display startup reliability.
- Improved simulator display scaling, resizing, high-DPI support, and pointer accuracy.
- Fixed LVGL timers and input polling on POSIX. (fixes simulator with Linux on some Intel graphics platforms)
- Standardized data paths across platforms.
- Logging now works via separate task: this allows apps to write to log without it affecting their stdout (for apps that output text as relevant date for other apps, like the File Selection app)
- Fixes for app stdio

Buildscripts/TactilitySDK/TactilitySDK.esp32.cmake

@@ -0,0 +1,62 @@
+function(tactility_project)
+endfunction()
+
+function(_tactility_project)
+endfunction()
+
+macro(tactility_project_pre project_name)
+    include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+    set(EXTRA_COMPONENT_DIRS ${TACTILITY_SDK_PATH} ${TACTILITY_SDK_PATH}/Modules)
+endmacro()
+
+macro(tactility_project_post project_name)
+    set(TACTILITY_SKIP_SPIFFS 1)
+
+    # Tactility's PanicHandler.cpp needs s0 to stay a frame pointer to capture a callstack for
+    # a RISC-V app's crashes, which GCC does not guarantee without this flag. The firmware sets the
+    # same flag for its own code, but a crash usually happens in app code, built separately here.
+    # Gated to RISC-V since Xtensa never reads s0 this way. idf_build_set_property(), not
+    # add_compile_options(): the app's code compiles as an idf_component_register() component
+    # (Apps/*/main/CMakeLists.txt), which reads ESP-IDF's own COMPILE_OPTIONS build property rather
+    # than plain directory-scoped flags. project_elf() below uses the same property for its own
+    # flags for the same reason.
+    if(CONFIG_IDF_TARGET_ARCH_RISCV)
+        idf_build_set_property(COMPILE_OPTIONS "-fno-omit-frame-pointer" APPEND)
+    endif()
+
+    include("${TACTILITY_SDK_PATH}/Libraries/elf_loader/elf_loader.cmake")
+    project_elf($project_name)
+
+    file(READ ${TACTILITY_SDK_PATH}/idf-version.txt TACTILITY_SDK_IDF_VERSION)
+    string(REGEX REPLACE "^([0-9]+\\.[0-9]+).*" "\\1" TACTILITY_SDK_IDF_MAJOR_MINOR "${TACTILITY_SDK_IDF_VERSION}")
+    string(REGEX REPLACE "^([0-9]+\\.[0-9]+).*" "\\1" CURRENT_IDF_MAJOR_MINOR "$ENV{ESP_IDF_VERSION}")
+    if (NOT "${CURRENT_IDF_MAJOR_MINOR}" STREQUAL "${TACTILITY_SDK_IDF_MAJOR_MINOR}")
+        message(FATAL_ERROR "ESP-IDF version of Tactility SDK (${TACTILITY_SDK_IDF_VERSION}) does not match current ESP-IDF version ($ENV{ESP_IDF_VERSION})")
+    endif()
+
+    set(EXTRA_COMPONENT_DIRS
+        "${TACTILITY_SDK_PATH}/Libraries/TactilityFreeRtos"
+        "${TACTILITY_SDK_PATH}/Modules"
+    )
+
+    set(COMPONENTS
+        TactilityFreeRtos
+        app-module
+        crypt-module
+        gps-module
+        lvgl-module
+        lvgl-window-manager-module
+        service-module
+    )
+
+endmacro()
+
+macro(tactility_component_register)
+    cmake_parse_arguments(TT_COMPONENT "" "" "SRCS;INCLUDE_DIRS;REQUIRES;PRIV_REQUIRES" ${ARGN})
+    idf_component_register(
+        SRCS ${TT_COMPONENT_SRCS}
+        INCLUDE_DIRS ${TT_COMPONENT_INCLUDE_DIRS}
+        REQUIRES TactilitySDK ${TT_COMPONENT_REQUIRES}
+        PRIV_REQUIRES ${TT_COMPONENT_PRIV_REQUIRES}
+    )
+endmacro()