Buffer, FileSystem, FontLoader, and C-API changes, various fixes.

The Buffer API has been modified to support memory-mapped files via
user-defined destructor callbacks. This allows us to reduce runtime
memory usage and improve performance.

The FileSystem and FontLoader API has been modified to take
advantage of the new Buffer API changes.

The C API has been updated to support the latest C++ API.

Add new WindowListener events to AppCore API to allow users to
provide custom-handling of mouse, keyboard, and scroll events.

Fix rendering issue in the CPU renderer on macOS/Linux incorrectly
drawing certain geometry with RGBA instead of BGRA.

Fix a crash on YouTube homepage (JavaScriptCore null pointer deref)

Fix memory leak in FileURLLoader.

Modify WebCore's run loop scheduler behavior to always service all
pending tasks to avoid large backlogs when under heavy load.

The FileSystem an

Deps.cmake

@@ -14,10 +14,10 @@ elseif (PORT MATCHES "UltralightWin")
     endif ()
 endif ()
 
-set(ULTRALIGHTCORE_REV "aa5aeef7")
-set(WEBCORE_REV "fcd0b784")
-set(ULTRALIGHT_REV "f95886c3")
-set(APPCORE_REV "a0111c9")
+set(ULTRALIGHTCORE_REV "97e3a482")
+set(WEBCORE_REV "c735e9d0")
+set(ULTRALIGHT_REV "121303a4")
+set(APPCORE_REV "3f80e38")
 
 set(ULTRALIGHTCORE_DIR "${CMAKE_CURRENT_BINARY_DIR}/deps/UltralightCore/")
 set(WEBCORE_DIR "${CMAKE_CURRENT_BINARY_DIR}/deps/WebCore/")

samples/Sample 1 - Render to PNG/CMakeLists.txt

@@ -13,12 +13,7 @@ add_executable(${APP_NAME} "main.cpp")
 add_custom_command(TARGET ${APP_NAME} POST_BUILD
   COMMAND ${CMAKE_COMMAND} -E copy_directory "${ULTRALIGHT_BINARY_DIR}" $<TARGET_FILE_DIR:${APP_NAME}>)
 
-# Set the assets path to "/assets" or "/../Resources/assets" on macOS
-if (APPLE)
-  set(ASSETS_PATH "$<TARGET_FILE_DIR:${APP_NAME}>/../Resources/assets") 
-else ()
-  set(ASSETS_PATH "$<TARGET_FILE_DIR:${APP_NAME}>/assets") 
-endif ()
+set(ASSETS_PATH "$<TARGET_FILE_DIR:${APP_NAME}>/assets") 
 
 # Copy resources to assets directory
 add_custom_command(TARGET ${APP_NAME} POST_BUILD