[Tizen] Cherrypicks from flutter-3.27.1 of flutter-tizen/engine

Author: JSUYA

DEPS

@@ -127,7 +127,7 @@ vars = {
   "checkout_llvm": False,
 
   # Setup Git hooks by default.
-  'setup_githooks': True,
+  'setup_githooks': False,
 
   # When this is true, the Flutter Engine's configuration files and scripts for
   # RBE will be downloaded from CIPD. This option is only usable by Googlers.

engine/src/flutter/common/config.gni

@@ -157,6 +157,4 @@ if (flutter_prebuilt_dart_sdk) {
 # TODO: We can't build the engine artifacts for arm (32-bit) right now;
 # see https://github.com/flutter/flutter/issues/74322.
 build_engine_artifacts =
-    flutter_build_engine_artifacts && !is_android &&
-    (current_toolchain == host_toolchain ||
-     (is_linux && !is_chromeos && current_cpu != "arm") || is_mac || is_win)
+    flutter_build_engine_artifacts && current_toolchain == host_toolchain

engine/src/flutter/display_list/testing/BUILD.gn

@@ -31,7 +31,8 @@ surface_provider_include_software = !is_android && !is_ios
 # But, since benchmarks do not run on Windows and rendertests only
 # runs on SW by default, this restriction currently only limits the
 # ability to manually cross-check OpenGL on Windows for rendertests
-surface_provider_include_gl = !is_fuchsia && !is_ios && !is_win && !is_mac
+surface_provider_include_gl =
+    !is_fuchsia && !is_ios && !is_win && !is_mac && !is_linux
 
 # TODO (https://github.com/flutter/flutter/issues/107357):
 # impeller_enable_vulkan currently requires skia to not use VMA, which in turn

engine/src/flutter/impeller/tools/args.gni

@@ -17,7 +17,7 @@ declare_args() {
                               enable_unittests) && target_os != "fuchsia"
 
   # Whether the Vulkan backend is enabled.
-  impeller_enable_vulkan = (is_linux || is_win || is_android || is_mac ||
+  impeller_enable_vulkan = (is_win || is_android || is_mac ||
                             enable_unittests) && target_os != "fuchsia"
 }
 

engine/src/flutter/shell/config.gni

@@ -17,6 +17,6 @@ declare_args() {
   test_enable_metal = shell_enable_metal
 
   # The Vulkan unittests are combined with the GL unittests.
-  test_enable_vulkan = is_fuchsia || shell_enable_gl
+  test_enable_vulkan = is_fuchsia
   test_enable_software = shell_enable_software
 }

engine/src/flutter/testing/BUILD.gn

@@ -53,7 +53,7 @@ source_set("testing") {
 
   if (enable_unittests && is_linux) {
     # So that we can call gtk_init in main().
-    configs += [ "//flutter/shell/platform/linux/config:gtk" ]
+    # configs += [ "//flutter/shell/platform/linux/config:gtk" ]
   }
 
   public_deps = [ ":testing_lib" ]

engine/src/flutter/tools/gn

@@ -89,18 +89,7 @@ def to_command_line(gn_args):
 
 
 def is_host_build(args):
-  # If target_os == None, then this is a host build.
-  if args.target_os is None:
-    return True
-  # For linux arm64 builds, we cross compile from x64 hosts, so the
-  # target_os='linux' and linux-cpu='arm64'
-  if args.target_os == 'linux' and args.linux_cpu == 'arm64':
-    return True
-  # The Mac and host targets are redundant. Again, necessary to disambiguate
-  # during cross-compilation.
-  if args.target_os == 'mac':
-    return True
-  return False
+  return args.target_os is None
 
 
 # Determines whether a prebuilt Dart SDK can be used instead of building one.
@@ -502,7 +491,7 @@ def to_gn_args(args):
   # does not exist. Further, we set the 'host_cpu' so that it shares the
   # bitwidth of the 32-bit arm target.
   if sys.platform.startswith(
-      ('cygwin', 'win')) and args.target_os == 'android' and gn_args['target_cpu'] == 'arm':
+      ('cygwin', 'win')) and args.target_os != 'win' and gn_args['target_cpu'] == 'arm':
     gn_args['host_cpu'] = 'x86'
     gn_args['current_cpu'] = 'x86'
 
@@ -599,7 +588,7 @@ def to_gn_args(args):
   else:
     gn_args['skia_use_gl'] = args.target_os != 'fuchsia'
 
-  if sys.platform == 'darwin' and args.target_os not in ['android', 'fuchsia']:
+  if sys.platform == 'darwin' and args.target_os not in ['android', 'fuchsia', 'linux']:
     # OpenGL is deprecated on macOS > 10.11.
     # This is not necessarily needed but enabling this until we have a way to
     # build a macOS metal only shell and a gl only shell.
@@ -610,7 +599,7 @@ def to_gn_args(args):
   # Enable Vulkan on all platforms except for iOS. This is just
   # to save on mobile binary size, as there's no reason the Vulkan embedder
   # features can't work on these platforms.
-  if gn_args['target_os'] not in ['ios', 'mac']:
+  if gn_args['target_os'] not in ['ios', 'mac', 'linux']:
     gn_args['skia_use_vulkan'] = True
     gn_args['skia_use_vma'] = False
     gn_args['shell_enable_vulkan'] = True
@@ -711,13 +700,17 @@ def to_gn_args(args):
 
   # Enable pointer compression on 64-bit mobile targets. iOS is excluded due to
   # its inability to allocate address space without allocating memory.
-  if args.target_os in ['android'] and gn_args['target_cpu'] in ['x64', 'arm64']:
+  if args.target_os in ['android', 'linux'] and gn_args['target_cpu'] in ['x64', 'arm64']:
     gn_args['dart_use_compressed_pointers'] = True
 
   if args.target_os == 'fuchsia':
     gn_args['gn_configs_path'] = '//flutter/build/config/fuchsia/gn_configs.gni'
     gn_args['fuchsia_gn_sdk'] = '//flutter/tools/fuchsia/gn-sdk'
 
+  # Don't use the default Linux sysroot when buliding for Linux on macOS.
+  if sys.platform == 'darwin' and args.target_os == 'linux':
+    gn_args['use_default_linux_sysroot'] = False
+
   # Flags for Dart features:
   if args.use_mallinfo2:
     gn_args['dart_use_mallinfo2'] = args.use_mallinfo2
@@ -743,9 +736,8 @@ def to_gn_args(args):
   # gen_snapshot, but the build defines otherwise make it look like the build is
   # for a host Windows build and make GN think we will be building ANGLE.
   # Angle is not used on Mac hosts as there are no tests for the OpenGL backend.
-  if is_host_build(args) or (args.target_os == 'android' and get_host_os() == 'win'):
-    # Don't include git commit information.
-    gn_args['angle_enable_commit_id'] = False
+  if (is_host_build(args) and gn_args['host_os'] != 'mac') or (args.target_os == 'linux' and
+                                                               get_host_os() == 'win'):
     # Do not build unnecessary parts of the ANGLE tree.
     gn_args['angle_build_all'] = False
     gn_args['angle_has_astc_encoder'] = False

engine/src/flutter/txt/src/txt/platform_linux.cc

@@ -19,7 +19,7 @@
 namespace txt {
 
 std::vector<std::string> GetDefaultFontFamilies() {
-  return {"Ubuntu", "Cantarell", "DejaVu Sans", "Liberation Sans", "Arial"};
+  return {"TizenDefaultFont", "SamsungOneUI"};
 }
 
 sk_sp<SkFontMgr> GetDefaultFontManager(uint32_t font_initialization_data) {