1 files changed, 51 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.layers.componentTransfer.identity.w.html b/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.layers.componentTransfer.identity.w.html
new file mode 100644
index 0000000000..2e45018755
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/filters/2d.filter.layers.componentTransfer.identity.w.html
@@ -0,0 +1,51 @@
+<!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.filter.layers.componentTransfer.identity-expected.html">
+<title>Canvas test: 2d.filter.layers.componentTransfer.identity</title>
+<h1>2d.filter.layers.componentTransfer.identity</h1>
+<p class="desc">Test pixels on CanvasFilter() componentTransfer with identity type</p>
+<canvas id="canvas" width="100" height="100">
+  <p class="fallback">FAIL (fallback content)</p>
+</canvas>
+<script id='myWorker' type='text/worker'>
+  self.onmessage = function(e) {
+    const canvas = new OffscreenCanvas(100, 100);
+    const ctx = canvas.getContext('2d');
+
+    ctx.beginLayer({filter: {name: 'componentTransfer',
+        funcR: {type: 'identity'},
+        funcG: {type: 'identity'},
+        funcB: {type: 'identity'},
+    }});
+
+    const inputColors = [
+        [255, 255, 255],
+        [0, 0, 0],
+        [127, 0, 34],
+        [252, 186, 3],
+        [50, 68, 87],
+    ];
+
+    for (let i = 0 ; i < inputColors.length ; ++i) {
+        const color = inputColors[i];
+        ctx.fillStyle = `rgb(${color[0]}, ${color[1]}, ${color[2]})`;
+        ctx.fillRect(i * 10, i * 10, 10, 10);
+    }
+    ctx.endLayer();
+
+    const bitmap = canvas.transferToImageBitmap();
+    self.postMessage(bitmap, bitmap);
+  };
+</script>
+<script>
+  const blob = new Blob([document.getElementById('myWorker').textContent]);
+  const worker = new Worker(URL.createObjectURL(blob));
+  worker.addEventListener('message', msg => {
+    const outputCtx = document.getElementById("canvas").getContext('2d');
+    outputCtx.drawImage(msg.data, 0, 0);
+    document.documentElement.classList.remove("reftest-wait");
+  });
+  worker.postMessage(null);
+</script>
+</html>