Skwasm scene

lib/web_ui/dev/build.dart

@@ -13,6 +13,7 @@ import 'pipeline.dart';
 import 'utils.dart';
 
 enum RuntimeMode {
+  debug,
   profile,
   release,
 }
@@ -45,6 +46,12 @@ class BuildCommand extends Command<bool> with ArgUtils<bool> {
           'output will be located at "out/wasm_profile".\nThis only applies to '
           'the wasm build. The host build is always built in release mode.',
     );
+    argParser.addFlag(
+      'debug',
+      help: 'Build in debug mode instead of release mode. In this mode, the '
+          'output will be located at "out/wasm_debug".\nThis only applies to '
+          'the wasm build. The host build is always built in release mode.',
+    );
   }
 
   @override
@@ -57,8 +64,15 @@ class BuildCommand extends Command<bool> with ArgUtils<bool> {
 
   bool get host => boolArg('host');
 
-  RuntimeMode get runtimeMode =>
-      boolArg('profile') ? RuntimeMode.profile : RuntimeMode.release;
+  RuntimeMode get runtimeMode {
+    if (boolArg('profile')) {
+      return RuntimeMode.profile;
+    } else if (boolArg('debug')) {
+      return RuntimeMode.debug;
+    } else {
+      return RuntimeMode.release;
+    }
+  }
 
   List<String> get targets => argResults?.rest ?? <String>[];
 
@@ -114,6 +128,8 @@ class GnPipelineStep extends ProcessStep {
 
   String get runtimeModeFlag {
     switch (runtimeMode) {
+      case RuntimeMode.debug:
+        return 'debug';
       case RuntimeMode.profile:
         return 'profile';
       case RuntimeMode.release:
@@ -170,6 +186,8 @@ class NinjaPipelineStep extends ProcessStep {
       return environment.hostDebugUnoptDir.path;
     }
     switch (runtimeMode) {
+      case RuntimeMode.debug:
+        return environment.wasmDebugOutDir.path;
       case RuntimeMode.profile:
         return environment.wasmProfileOutDir.path;
       case RuntimeMode.release:

lib/web_ui/dev/environment.dart

@@ -32,6 +32,8 @@ class Environment {
         io.Directory(pathlib.join(outDir.path, 'wasm_release'));
     final io.Directory wasmProfileOutDir =
         io.Directory(pathlib.join(outDir.path, 'wasm_profile'));
+    final io.Directory wasmDebugOutDir =
+        io.Directory(pathlib.join(outDir.path, 'wasm_debug'));
     final io.Directory hostDebugUnoptDir =
         io.Directory(pathlib.join(outDir.path, 'host_debug_unopt'));
     final io.Directory dartSdkDir = dartExecutable.parent.parent;
@@ -57,6 +59,7 @@ class Environment {
       outDir: outDir,
       wasmReleaseOutDir: wasmReleaseOutDir,
       wasmProfileOutDir: wasmProfileOutDir,
+      wasmDebugOutDir: wasmDebugOutDir,
       hostDebugUnoptDir: hostDebugUnoptDir,
       dartSdkDir: dartSdkDir,
     );
@@ -71,6 +74,7 @@ class Environment {
     required this.outDir,
     required this.wasmReleaseOutDir,
     required this.wasmProfileOutDir,
+    required this.wasmDebugOutDir,
     required this.hostDebugUnoptDir,
     required this.dartSdkDir,
   });
@@ -103,6 +107,9 @@ class Environment {
   /// The output directory for the wasm_profile build.
   final io.Directory wasmProfileOutDir;
 
+  /// The output directory for the wasm_debug build.
+  final io.Directory wasmDebugOutDir;
+
   /// The output directory for the host_debug_unopt build.
   final io.Directory hostDebugUnoptDir;
 

lib/web_ui/lib/src/engine/skwasm/skwasm_impl.dart

@@ -2,12 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+@DefaultAsset('skwasm')
 // The web_sdk/sdk_rewriter.dart uses this directive.
 // ignore: unnecessary_library_directive
 library skwasm_impl;
 
+import 'dart:ffi';
+
 export 'skwasm_impl/canvas.dart';
+export 'skwasm_impl/font_collection.dart';
 export 'skwasm_impl/image.dart';
+export 'skwasm_impl/layers.dart';
 export 'skwasm_impl/paint.dart';
 export 'skwasm_impl/paragraph.dart';
 export 'skwasm_impl/path.dart';
@@ -22,5 +27,6 @@ export 'skwasm_impl/raw/raw_path_metrics.dart';
 export 'skwasm_impl/raw/raw_picture.dart';
 export 'skwasm_impl/raw/raw_surface.dart';
 export 'skwasm_impl/renderer.dart';
+export 'skwasm_impl/scene_builder.dart';
 export 'skwasm_impl/surface.dart';
 export 'skwasm_impl/vertices.dart';

lib/web_ui/lib/src/engine/skwasm/skwasm_impl/canvas.dart

@@ -206,7 +206,7 @@ class SkwasmCanvas implements ui.Canvas {
 
   @override
   void drawParagraph(ui.Paragraph uiParagraph, ui.Offset offset) {
-    throw UnimplementedError();
+    // TODO(jacksongardner): implement this
   }
 
   @override
@@ -260,7 +260,7 @@ class SkwasmCanvas implements ui.Canvas {
     double elevation,
     bool transparentOccluder,
   ) {
-    throw UnimplementedError();
+    // TODO(jacksongardner): implement this
   }
 
   @override

lib/web_ui/lib/src/engine/skwasm/skwasm_impl/font_collection.dart

@@ -0,0 +1,41 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+
+import 'dart:typed_data';
+
+import 'package:ui/src/engine.dart';
+
+class SkwasmFontCollection implements FlutterFontCollection {
+  @override
+  void clear() {
+    // TODO: implement clear
+    print('SkwasmFontCollection.clear()');
+  }
+
+  @override
+  FutureOr<void> debugDownloadTestFonts() {
+    // TODO: implement debugDownloadTestFonts
+    print('SkwasmFontCollection.debugDownloadTestFonts()');
+  }
+
+  @override
+  Future<void> downloadAssetFonts(AssetManager assetManager) async {
+    // TODO: implement downloadAssetFonts
+    print('SkwasmFontCollection.downloadAssetFonts($assetManager)');
+  }
+
+  @override
+  Future<void> loadFontFromList(Uint8List list, {String? fontFamily}) async {
+    // TODO: implement loadFontFromList
+    print('SkwasmFontCollection.loadFontFromList($list, $fontFamily)');
+  }
+
+  @override
+  void registerDownloadedFonts() {
+    // TODO: implement registerDownloadedFonts
+    print('SkwasmFontCollection.registerDownloadedFonts()');
+  }
+}