1 files changed, 126 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.global-states.filter.composite.shadow.rotation.w.html b/testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.global-states.filter.composite.shadow.rotation.w.html
new file mode 100644
index 0000000000..1ae9f00a85
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/layers/2d.layer.global-states.filter.composite.shadow.rotation.w.html
@@ -0,0 +1,126 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<html class="reftest-wait">
+<link rel="match" href="2d.layer.global-states.filter.composite.shadow.rotation-expected.html">
+<title>Canvas test: 2d.layer.global-states.filter.composite.shadow.rotation</title>
+<h1 style="font-size: 20px;">2d.layer.global-states.filter.composite.shadow.rotation</h1>
+<p class="desc">Checks that layers with filters correctly use global render states.</p>
+<script>pending_tests = 2;</script>
+
+<div style="display: grid; grid-gap: 4px;
+            grid-template-columns: repeat(2, max-content);
+            font-size: 13px; text-align: center;">
+<span>
+  <div>no-globalAlpha</div>
+  <canvas id="canvas0" width="90" height="90" style="outline: 1px solid">
+    <p class="fallback">FAIL (fallback content)</p>
+  </canvas>
+  <script id="myWorker0" type="text/worker">
+    self.onmessage = function(e) {
+      const canvas = new OffscreenCanvas(90, 90);
+      const ctx = canvas.getContext('2d');
+
+      ctx.translate(50, 40);
+      ctx.rotate(Math.PI);
+      ctx.translate(-45, -45);
+
+      ctx.fillStyle = 'rgba(128, 128, 128, 1)';
+      ctx.fillRect(20, 15, 50, 50);
+
+      // No globalAlpha.
+      ctx.globalCompositeOperation = 'source-in';
+      ctx.shadowOffsetX = -7;
+      ctx.shadowOffsetY = 7;
+      ctx.shadowColor = 'rgba(255, 165, 0, 0.5)';
+      ctx.shadowBlur = 3;
+
+      ctx.beginLayer({filter: [
+          {name: 'dropShadow',
+              dx: 5, dy: 5, stdDeviation: 0, floodColor: '#00f'},
+          {name: 'componentTransfer',
+              funcA: {type: "table", tableValues: [0, 0.8]}}]});
+
+      ctx.fillStyle = 'rgba(255, 0, 0, 1)';
+      ctx.fillRect(10, 25, 40, 50);
+      ctx.fillStyle = 'rgba(0, 255, 0, 1)';
+      ctx.fillRect(30, 5, 50, 40);
+
+      ctx.endLayer();
+
+      const bitmap = canvas.transferToImageBitmap();
+      self.postMessage(bitmap, bitmap);
+    };
+  </script>
+  <script type="module">
+    const blob = new Blob([document.getElementById('myWorker0').textContent]);
+    const worker = new Worker(URL.createObjectURL(blob));
+    worker.addEventListener('message', msg => {
+      const outputCanvas = document.getElementById('canvas0');
+      const outputCtx = outputCanvas.getContext('2d');
+      outputCtx.drawImage(msg.data, 0, 0);
+      if (--pending_tests == 0) {
+        document.documentElement.classList.remove('reftest-wait');
+      }
+    });
+    worker.postMessage(null);
+  </script>
+</span>
+
+<span>
+  <div>globalAlpha</div>
+  <canvas id="canvas1" width="90" height="90" style="outline: 1px solid">
+    <p class="fallback">FAIL (fallback content)</p>
+  </canvas>
+  <script id="myWorker1" type="text/worker">
+    self.onmessage = function(e) {
+      const canvas = new OffscreenCanvas(90, 90);
+      const ctx = canvas.getContext('2d');
+
+      ctx.translate(50, 40);
+      ctx.rotate(Math.PI);
+      ctx.translate(-45, -45);
+
+      ctx.fillStyle = 'rgba(128, 128, 128, 1)';
+      ctx.fillRect(20, 15, 50, 50);
+
+      ctx.globalAlpha = 0.75;
+      ctx.globalCompositeOperation = 'source-in';
+      ctx.shadowOffsetX = -7;
+      ctx.shadowOffsetY = 7;
+      ctx.shadowColor = 'rgba(255, 165, 0, 0.5)';
+      ctx.shadowBlur = 3;
+
+      ctx.beginLayer({filter: [
+          {name: 'dropShadow',
+              dx: 5, dy: 5, stdDeviation: 0, floodColor: '#00f'},
+          {name: 'componentTransfer',
+              funcA: {type: "table", tableValues: [0, 0.8]}}]});
+
+      ctx.fillStyle = 'rgba(255, 0, 0, 1)';
+      ctx.fillRect(10, 25, 40, 50);
+      ctx.fillStyle = 'rgba(0, 255, 0, 1)';
+      ctx.fillRect(30, 5, 50, 40);
+
+      ctx.endLayer();
+
+      const bitmap = canvas.transferToImageBitmap();
+      self.postMessage(bitmap, bitmap);
+    };
+  </script>
+  <script type="module">
+    const blob = new Blob([document.getElementById('myWorker1').textContent]);
+    const worker = new Worker(URL.createObjectURL(blob));
+    worker.addEventListener('message', msg => {
+      const outputCanvas = document.getElementById('canvas1');
+      const outputCtx = outputCanvas.getContext('2d');
+      outputCtx.drawImage(msg.data, 0, 0);
+      if (--pending_tests == 0) {
+        document.documentElement.classList.remove('reftest-wait');
+      }
+    });
+    worker.postMessage(null);
+  </script>
+</span>
+
+</div>
+</html>