| Index: third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-zero-size-readback.html
|
| diff --git a/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-zero-size-readback.html b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-zero-size-readback.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..c9acf3a21bd6e0fdb7cb50cd5d296cbfea8079f6
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/fast/canvas/OffscreenCanvas-zero-size-readback.html
|
| @@ -0,0 +1,64 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../resources/testharness.js"></script>
|
| +<script src="../../resources/testharnessreport.js"></script>
|
| +<script>
|
| +promise_test(
|
| + t => { return zeroSizeReadback("width", "none", t); },
|
| + "Verify convertToBlob on a 0 width OffscreenCanvas with no context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("width", "2d", t); },
|
| + "Verify convertToBlob and getImageData on a 0 width OffscreenCanvas with a 2d context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("width", "webgl", t); },
|
| + "Verify convertToBlob on a 0 width OffscreenCanvas with a webgl context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("width", "webgl2", t); },
|
| + "Verify convertToBlob on a 0 width OffscreenCanvas with a webgl2 context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("height", "none", t); },
|
| + "Verify convertToBlob on a 0 height OffscreenCanvas with no context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("height", "2d", t); },
|
| + "Verify convertToBlob and getImageData on a 0 height OffscreenCanvas with a 2d context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("height", "webgl", t); },
|
| + "Verify convertToBlob on a 0 height OffscreenCanvas with a webgl context."
|
| +);
|
| +
|
| +promise_test(
|
| + t => { return zeroSizeReadback("height", "webgl2", t); },
|
| + "Verify convertToBlob on a 0 height OffscreenCanvas with a webgl2 context."
|
| +);
|
| +
|
| +function zeroSizeReadback(zeroDimension, contextType, t) {
|
| + var offscreen = new OffscreenCanvas(10, 10);
|
| + eval("offscreen." + zeroDimension + " = 0");
|
| + // Verify that one of the dimensions was indeed zeroed.
|
| + assert_equals(offscreen.width * offscreen.height, 0);
|
| +
|
| + var ctx;
|
| + if (contextType != "none") {
|
| + ctx = offscreen.getContext(contextType);
|
| + }
|
| +
|
| + if (contextType == '2d') {
|
| + var imgdata = ctx.getImageData(0, 0, 1, 1);
|
| + assert_equals(imgdata.width, 1);
|
| + assert_equals(imgdata.height, 1);
|
| + }
|
| +
|
| + return promise_rejects(t, new DOMException('', 'IndexSizeError'), offscreen.convertToBlob());
|
| +}
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2539333003:
Fix crash when calling convertToBlob on an OffscreenCanvas with no pixels (Closed)
