1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/manual/wide-gamut-canvas/canvas-display-p3-pattern-image.html b/testing/web-platform/tests/html/canvas/element/manual/wide-gamut-canvas/canvas-display-p3-pattern-image.html
new file mode 100644
index 0000000000..75a8392c02
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/element/manual/wide-gamut-canvas/canvas-display-p3-pattern-image.html
@@ -0,0 +1,37 @@
+<!DOCTYPE HTML>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="canvas-display-p3.js"></script>
+<script>
+// Test that patterns created from images with different bit depths and color
+// profiles into can be drawn into sRGB and Display P3 canvases, by reading
+// pixels with getImageData() as sRGB and Display P3 values.
+for (let [filename, expectedPixels] of Object.entries(imageTests)) {
+    for (let contextColorSpace of ["srgb", "display-p3"]) {
+        for (let imageDataColorSpace of ["srgb", "display-p3"]) {
+            async_test(function(t) {
+                let image = new Image();
+                image.onload = t.step_func_done(function() {
+
+                    let canvas = document.createElement("canvas");
+                    canvas.width = 4;
+                    canvas.height = 4;
+
+                    let ctx = canvas.getContext("2d", { colorSpace: contextColorSpace });
+                    ctx.fillStyle = ctx.createPattern(image, "repeat");
+                    ctx.fillRect(0, 0, 4, 4);
+
+                    let imageData = ctx.getImageData(2, 2, 1, 1, { colorSpace: imageDataColorSpace });
+
+                    let expected = expectedPixels[`${contextColorSpace} ${imageDataColorSpace}`];
+                    assert_true(pixelsApproximatelyEqual(imageData.data, expected), `Actual pixel value ${[...imageData.data]} is approximately equal to ${expected}.`);
+
+                    t.done();
+
+                });
+                image.src = `resources/${filename}`;
+            }, `${filename}, Context ${contextColorSpace}, ImageData ${imageDataColorSpace}`);
+        }
+    }
+}
+</script>