fix: automate graduate timetable read and refine blue glass Dock

2026-10-13 17:50:04 +08:00
parent 8f20a341c4
commit 476ef097ee
23 changed files with 1072 additions and 176 deletions
@@ -0,0 +1,61 @@
+import 'dart:ui' as ui;
+import 'dart:typed_data';
+
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+  test(
+    'glass samples and bends background pixels while keeping the centre stable',
+    () async {
+      const width = 160, height = 100;
+      final sourceRecorder = ui.PictureRecorder();
+      final sourceCanvas = ui.Canvas(sourceRecorder);
+      for (var x = 0; x < width; x++) {
+        sourceCanvas.drawRect(
+          ui.Rect.fromLTWH(x.toDouble(), 0, 1, height.toDouble()),
+          ui.Paint()..color = ui.Color.fromARGB(255, 40 + x, 70, 90),
+        );
+      }
+      final sourcePicture = sourceRecorder.endRecording();
+      final source = await sourcePicture.toImage(width, height);
+      final program = await ui.FragmentProgram.fromAsset(
+        'shaders/liquid_glass.frag',
+      );
+      final shader = program.fragmentShader()
+        ..setFloat(0, width.toDouble())
+        ..setFloat(1, height.toDouble())
+        ..setFloat(2, 0)
+        ..setFloat(3, 0)
+        ..setFloat(4, width.toDouble())
+        ..setFloat(5, height.toDouble())
+        ..setImageSampler(0, source);
+      Future<ui.Image> draw(double strength) async {
+        shader.setFloat(6, strength);
+        final recorder = ui.PictureRecorder();
+        ui.Canvas(recorder).drawRect(
+          ui.Rect.fromLTWH(0, 0, width.toDouble(), height.toDouble()),
+          ui.Paint()..shader = shader,
+        );
+        final picture = recorder.endRecording();
+        final image = await picture.toImage(width, height);
+        picture.dispose();
+        return image;
+      }
+
+      final plain = await draw(0), refracted = await draw(1);
+      final a = (await plain.toByteData())!,
+          b = (await refracted.toByteData())!;
+      int red(ByteData data, int x) => data.getUint8((50 * width + x) * 4);
+      expect(red(a, 12), closeTo(52, 1));
+      expect((red(b, 12) - red(a, 12)).abs(), greaterThan(3));
+      expect(red(b, 80), closeTo(red(a, 80), 1));
+      expect(b.getUint8((50 * width + 12) * 4 + 3), 255);
+      shader.dispose();
+      plain.dispose();
+      refracted.dispose();
+      source.dispose();
+      sourcePicture.dispose();
+    },
+  );
+}