1 files changed, 73 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/element/manual/imagebitmap/createImageBitmap-flipY.html b/testing/web-platform/tests/html/canvas/element/manual/imagebitmap/createImageBitmap-flipY.html
new file mode 100644
index 0000000000..9b0d2dfb79
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/element/manual/imagebitmap/createImageBitmap-flipY.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html>
+<title>createImageBitmap + drawImage test</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+<script src="/common/media.js"></script>
+<script src="common.sub.js"></script>
+<link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
+<body>
+<script>
+function testCanvasDisplayingPattern(canvas, width, height, sourceIsVideo, flipped)
+{
+    var tolerance = 3;
+    let topLeft = [255, 0, 0, 255];
+    let topRight = [0, 255, 0, 255];
+    let bottomLeft = [0, 0, 255, 255];
+    let bottomRight = [0, 0, 0, 255];
+    if (sourceIsVideo) {
+        // The source video uses colors in the Rec.601 color space whose
+        // values are close to full red, full green, full blue, and black,
+        // but when converted to sRGB, are somewhat different.
+        topLeft = [247, 37, 0, 255];
+        topRight = [63, 251, 0, 255];
+        bottomLeft = [28, 35, 255, 255];
+        bottomRight = [5, 0, 2, 255];
+    }
+    if (flipped) {
+        [topLeft, bottomLeft] = [bottomLeft, topLeft];
+        [topRight, bottomRight] = [bottomRight, topRight];
+    }
+    const check = (x, y, [r, g, b, a]) =>
+        _assertPixelApprox(canvas, x,y, r,g,b,a, tolerance);
+    check(1 * width / 4, 1 * height / 4, topLeft);
+    check(3 * width / 4, 1 * height / 4, topRight);
+    check(1 * width / 4, 3 * height / 4, bottomLeft);
+    check(3 * width / 4, 3 * height / 4, bottomRight);
+}
+
+function testDrawImageBitmap(source, args = [], flipped, { resizeWidth = 20, resizeHeight = 20 } = {})
+{
+    let sourceIsVideo = source instanceof HTMLVideoElement;
+    var canvas = document.createElement("canvas");
+    canvas.width = resizeWidth;
+    canvas.height = resizeHeight;
+    var ctx = canvas.getContext("2d");
+    return createImageBitmap(source, ...args).then(imageBitmap => {
+        assert_equals(imageBitmap.width, resizeWidth);
+        assert_equals(imageBitmap.height, resizeHeight);
+        ctx.drawImage(imageBitmap, 0, 0);
+        testCanvasDisplayingPattern(canvas, resizeWidth, resizeHeight, sourceIsVideo, flipped);
+    });
+}
+
+for (let { name, factory } of imageSourceTypes) {
+    promise_test(function() {
+        return factory().then(function(img) {
+            const options = { imageOrientation: 'from-image' };
+            return testDrawImageBitmap(img, [options], false);
+        });
+    }, `createImageBitmap from ${name} imageOrientation: "from-image", and drawImage on the created ImageBitmap`);
+
+    promise_test(function() {
+        return factory().then(function(img) {
+            const options = { imageOrientation: 'flipY' };
+            return testDrawImageBitmap(img, [options], true);
+        });
+    }, `createImageBitmap from ${name} imageOrientation: "flipY", and drawImage on the created ImageBitmap`);
+
+}
+</script>
+</body>
+</html>