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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation')
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.html27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.worker.js23
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.html38
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.worker.js34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.html27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.worker.js23
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.html27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.worker.js23
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.html35
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.worker.js31
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.html35
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.worker.js31
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.html33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.worker.js29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.html43
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.worker.js39
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.html30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.worker.js26
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.html29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.worker.js25
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.html27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.worker.js23
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.html38
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.worker.js34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.html28
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.worker.js24
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.html75
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.worker.js71
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.worker.js30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html31
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.worker.js27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.html34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.worker.js30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.html37
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.worker.js33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.worker.js30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.html34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.worker.js30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.html44
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.worker.js40
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.html79
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.worker.js75
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.html30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.worker.js26
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.html42
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.worker.js38
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.html29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.worker.js25
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.html51
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.worker.js47
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.html33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.worker.js29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.html30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.worker.js26
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.html40
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.worker.js36
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.html55
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.worker.js51
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.html31
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.worker.js27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.html36
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.worker.js32
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.html30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.worker.js26
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.html33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.worker.js29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.html33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.worker.js29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.html37
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.worker.js33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.html37
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.worker.js33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.html35
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.worker.js31
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.html41
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.worker.js37
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.html42
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.worker.js38
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.html41
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.worker.js37
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.html41
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.worker.js37
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.html33
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.worker.js29
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.html38
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.worker.js34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.html109
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.worker.js105
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.html27
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.worker.js23
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.html34
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.worker.js30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.html39
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.worker.js35
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.html42
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.worker.js38
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.html30
-rw-r--r--testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.worker.js26
100 files changed, 3636 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.html
new file mode 100644
index 0000000000..24d9a77405
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create1.basic</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create1.basic</h1>
+<p class="desc">createImageData(imgdata) exists and returns something</p>
+
+
+<script>
+var t = async_test("createImageData(imgdata) exists and returns something");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+_assertDifferent(ctx.createImageData(ctx.createImageData(1, 1)), null, "ctx.createImageData(ctx.createImageData(1, 1))", "null");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.worker.js
new file mode 100644
index 0000000000..54d2cadb1c
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.basic.worker.js
@@ -0,0 +1,23 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create1.basic
+// Description:createImageData(imgdata) exists and returns something
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(imgdata) exists and returns something");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+_assertDifferent(ctx.createImageData(ctx.createImageData(1, 1)), null, "ctx.createImageData(ctx.createImageData(1, 1))", "null");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.html
new file mode 100644
index 0000000000..658ae83b56
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create1.initial</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create1.initial</h1>
+<p class="desc">createImageData(imgdata) returns transparent black data of the right size</p>
+
+
+<script>
+var t = async_test("createImageData(imgdata) returns transparent black data of the right size");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata1 = ctx.getImageData(0, 0, 10, 20);
+var imgdata2 = ctx.createImageData(imgdata1);
+_assertSame(imgdata2.data.length, imgdata1.data.length, "imgdata2.data.length", "imgdata1.data.length");
+_assertSame(imgdata2.width, imgdata1.width, "imgdata2.width", "imgdata1.width");
+_assertSame(imgdata2.height, imgdata1.height, "imgdata2.height", "imgdata1.height");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata2.data.length; ++i)
+ if (imgdata2.data[i] !== 0)
+ isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.worker.js
new file mode 100644
index 0000000000..bfff76b29f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.initial.worker.js
@@ -0,0 +1,34 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create1.initial
+// Description:createImageData(imgdata) returns transparent black data of the right size
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(imgdata) returns transparent black data of the right size");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata1 = ctx.getImageData(0, 0, 10, 20);
+var imgdata2 = ctx.createImageData(imgdata1);
+_assertSame(imgdata2.data.length, imgdata1.data.length, "imgdata2.data.length", "imgdata1.data.length");
+_assertSame(imgdata2.width, imgdata1.width, "imgdata2.width", "imgdata1.width");
+_assertSame(imgdata2.height, imgdata1.height, "imgdata2.height", "imgdata1.height");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata2.data.length; ++i)
+ if (imgdata2.data[i] !== 0)
+ isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.html
new file mode 100644
index 0000000000..736725f0fd
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create1.zero</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create1.zero</h1>
+<p class="desc">createImageData(null) throws TypeError</p>
+
+
+<script>
+var t = async_test("createImageData(null) throws TypeError");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.createImageData(null); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.worker.js
new file mode 100644
index 0000000000..c51067ed62
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create1.zero.worker.js
@@ -0,0 +1,23 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create1.zero
+// Description:createImageData(null) throws TypeError
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(null) throws TypeError");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.createImageData(null); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.html
new file mode 100644
index 0000000000..7dca77e4ae
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.basic</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.basic</h1>
+<p class="desc">createImageData(sw, sh) exists and returns something</p>
+
+
+<script>
+var t = async_test("createImageData(sw, sh) exists and returns something");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+_assertDifferent(ctx.createImageData(1, 1), null, "ctx.createImageData(1, 1)", "null");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.worker.js
new file mode 100644
index 0000000000..e99cbe276b
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.basic.worker.js
@@ -0,0 +1,23 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.basic
+// Description:createImageData(sw, sh) exists and returns something
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(sw, sh) exists and returns something");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+_assertDifferent(ctx.createImageData(1, 1), null, "ctx.createImageData(1, 1)", "null");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.html
new file mode 100644
index 0000000000..76017f5c4f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.initial</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.initial</h1>
+<p class="desc">createImageData(sw, sh) returns transparent black data of the right size</p>
+
+
+<script>
+var t = async_test("createImageData(sw, sh) returns transparent black data of the right size");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.createImageData(10, 20);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
+_assert(imgdata.width > 0, "imgdata.width > 0");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata.data.length; ++i)
+ if (imgdata.data[i] !== 0)
+ isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.worker.js
new file mode 100644
index 0000000000..0e681dee07
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.initial.worker.js
@@ -0,0 +1,31 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.initial
+// Description:createImageData(sw, sh) returns transparent black data of the right size
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(sw, sh) returns transparent black data of the right size");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.createImageData(10, 20);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
+_assert(imgdata.width > 0, "imgdata.width > 0");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata.data.length; ++i)
+ if (imgdata.data[i] !== 0)
+ isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.html
new file mode 100644
index 0000000000..f3d19d3f29
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.large</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.large</h1>
+<p class="desc">createImageData(sw, sh) works for sizes much larger than the canvas</p>
+
+
+<script>
+var t = async_test("createImageData(sw, sh) works for sizes much larger than the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.createImageData(1000, 2000);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
+_assert(imgdata.width > 0, "imgdata.width > 0");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata.data.length; i += 7813) // check ~1024 points (assuming normal scaling)
+ if (imgdata.data[i] !== 0)
+ isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.worker.js
new file mode 100644
index 0000000000..57dda69d4d
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.large.worker.js
@@ -0,0 +1,31 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.large
+// Description:createImageData(sw, sh) works for sizes much larger than the canvas
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(sw, sh) works for sizes much larger than the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.createImageData(1000, 2000);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
+_assert(imgdata.width > 0, "imgdata.width > 0");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata.data.length; i += 7813) // check ~1024 points (assuming normal scaling)
+ if (imgdata.data[i] !== 0)
+ isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.html
new file mode 100644
index 0000000000..f4b4df99a8
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.negative</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.negative</h1>
+<p class="desc">createImageData(sw, sh) takes the absolute magnitude of the size arguments</p>
+
+
+<script>
+var t = async_test("createImageData(sw, sh) takes the absolute magnitude of the size arguments");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata1 = ctx.createImageData(10, 20);
+var imgdata2 = ctx.createImageData(-10, 20);
+var imgdata3 = ctx.createImageData(10, -20);
+var imgdata4 = ctx.createImageData(-10, -20);
+_assertSame(imgdata1.data.length, imgdata2.data.length, "imgdata1.data.length", "imgdata2.data.length");
+_assertSame(imgdata2.data.length, imgdata3.data.length, "imgdata2.data.length", "imgdata3.data.length");
+_assertSame(imgdata3.data.length, imgdata4.data.length, "imgdata3.data.length", "imgdata4.data.length");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.worker.js
new file mode 100644
index 0000000000..a5cb857295
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.negative.worker.js
@@ -0,0 +1,29 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.negative
+// Description:createImageData(sw, sh) takes the absolute magnitude of the size arguments
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(sw, sh) takes the absolute magnitude of the size arguments");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata1 = ctx.createImageData(10, 20);
+var imgdata2 = ctx.createImageData(-10, 20);
+var imgdata3 = ctx.createImageData(10, -20);
+var imgdata4 = ctx.createImageData(-10, -20);
+_assertSame(imgdata1.data.length, imgdata2.data.length, "imgdata1.data.length", "imgdata2.data.length");
+_assertSame(imgdata2.data.length, imgdata3.data.length, "imgdata2.data.length", "imgdata3.data.length");
+_assertSame(imgdata3.data.length, imgdata4.data.length, "imgdata3.data.length", "imgdata4.data.length");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.html
new file mode 100644
index 0000000000..d7d1e7f756
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.nonfinite</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.nonfinite</h1>
+<p class="desc">createImageData() throws TypeError if arguments are not finite</p>
+
+
+<script>
+var t = async_test("createImageData() throws TypeError if arguments are not finite");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.createImageData(Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(-Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, NaN); });
+assert_throws_js(TypeError, function() { ctx.createImageData(Infinity, Infinity); });
+var posinfobj = { valueOf: function() { return Infinity; } },
+ neginfobj = { valueOf: function() { return -Infinity; } },
+ nanobj = { valueOf: function() { return -Infinity; } };
+assert_throws_js(TypeError, function() { ctx.createImageData(posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(neginfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(nanobj, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, neginfobj); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, nanobj); });
+assert_throws_js(TypeError, function() { ctx.createImageData(posinfobj, posinfobj); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.worker.js
new file mode 100644
index 0000000000..f398e2a5d4
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.nonfinite.worker.js
@@ -0,0 +1,39 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.nonfinite
+// Description:createImageData() throws TypeError if arguments are not finite
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData() throws TypeError if arguments are not finite");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.createImageData(Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(-Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, NaN); });
+assert_throws_js(TypeError, function() { ctx.createImageData(Infinity, Infinity); });
+var posinfobj = { valueOf: function() { return Infinity; } },
+ neginfobj = { valueOf: function() { return -Infinity; } },
+ nanobj = { valueOf: function() { return -Infinity; } };
+assert_throws_js(TypeError, function() { ctx.createImageData(posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(neginfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(nanobj, 10); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, neginfobj); });
+assert_throws_js(TypeError, function() { ctx.createImageData(10, nanobj); });
+assert_throws_js(TypeError, function() { ctx.createImageData(posinfobj, posinfobj); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.html
new file mode 100644
index 0000000000..f2f0aa89e2
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.round</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.round</h1>
+<p class="desc">createImageData(w, h) is rounded the same as getImageData(0, 0, w, h)</p>
+
+
+<script>
+var t = async_test("createImageData(w, h) is rounded the same as getImageData(0, 0, w, h)");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata1 = ctx.createImageData(10.01, 10.99);
+var imgdata2 = ctx.getImageData(0, 0, 10.01, 10.99);
+_assertSame(imgdata1.width, imgdata2.width, "imgdata1.width", "imgdata2.width");
+_assertSame(imgdata1.height, imgdata2.height, "imgdata1.height", "imgdata2.height");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.worker.js
new file mode 100644
index 0000000000..2387498418
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.round.worker.js
@@ -0,0 +1,26 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.round
+// Description:createImageData(w, h) is rounded the same as getImageData(0, 0, w, h)
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(w, h) is rounded the same as getImageData(0, 0, w, h)");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata1 = ctx.createImageData(10.01, 10.99);
+var imgdata2 = ctx.getImageData(0, 0, 10.01, 10.99);
+_assertSame(imgdata1.width, imgdata2.width, "imgdata1.width", "imgdata2.width");
+_assertSame(imgdata1.height, imgdata2.height, "imgdata1.height", "imgdata2.height");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.html
new file mode 100644
index 0000000000..7c3a2d9410
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.create2.zero</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.create2.zero</h1>
+<p class="desc">createImageData(sw, sh) throws INDEX_SIZE_ERR if size is zero</p>
+
+
+<script>
+var t = async_test("createImageData(sw, sh) throws INDEX_SIZE_ERR if size is zero");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.createImageData(10, 0); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.createImageData(0, 10); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.createImageData(0, 0); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.worker.js
new file mode 100644
index 0000000000..615a989e68
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.create2.zero.worker.js
@@ -0,0 +1,25 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.create2.zero
+// Description:createImageData(sw, sh) throws INDEX_SIZE_ERR if size is zero
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("createImageData(sw, sh) throws INDEX_SIZE_ERR if size is zero");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.createImageData(10, 0); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.createImageData(0, 10); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.createImageData(0, 0); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.html
new file mode 100644
index 0000000000..d4f4a63b3a
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.basic</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.basic</h1>
+<p class="desc">getImageData() exists and returns something</p>
+
+
+<script>
+var t = async_test("getImageData() exists and returns something");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+_assertDifferent(ctx.getImageData(0, 0, 100, 50), null, "ctx.getImageData(0, 0, 100, 50)", "null");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.worker.js
new file mode 100644
index 0000000000..8accaccc75
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.basic.worker.js
@@ -0,0 +1,23 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.basic
+// Description:getImageData() exists and returns something
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() exists and returns something");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+_assertDifferent(ctx.getImageData(0, 0, 100, 50), null, "ctx.getImageData(0, 0, 100, 50)", "null");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.html
new file mode 100644
index 0000000000..9cbc1b48dc
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.clamp</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.clamp</h1>
+<p class="desc">getImageData() clamps colors to the range [0, 255]</p>
+
+
+<script>
+var t = async_test("getImageData() clamps colors to the range [0, 255]");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgb(-100, -200, -300)';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = 'rgb(256, 300, 400)';
+ctx.fillRect(20, 10, 60, 10);
+var imgdata1 = ctx.getImageData(10, 5, 1, 1);
+_assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0");
+var imgdata2 = ctx.getImageData(30, 15, 1, 1);
+_assertSame(imgdata2.data[0], 255, "imgdata2.data[\""+(0)+"\"]", "255");
+_assertSame(imgdata2.data[1], 255, "imgdata2.data[\""+(1)+"\"]", "255");
+_assertSame(imgdata2.data[2], 255, "imgdata2.data[\""+(2)+"\"]", "255");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.worker.js
new file mode 100644
index 0000000000..ceeb8d5d86
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.clamp.worker.js
@@ -0,0 +1,34 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.clamp
+// Description:getImageData() clamps colors to the range [0, 255]
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() clamps colors to the range [0, 255]");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgb(-100, -200, -300)';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = 'rgb(256, 300, 400)';
+ctx.fillRect(20, 10, 60, 10);
+var imgdata1 = ctx.getImageData(10, 5, 1, 1);
+_assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0");
+var imgdata2 = ctx.getImageData(30, 15, 1, 1);
+_assertSame(imgdata2.data[0], 255, "imgdata2.data[\""+(0)+"\"]", "255");
+_assertSame(imgdata2.data[1], 255, "imgdata2.data[\""+(1)+"\"]", "255");
+_assertSame(imgdata2.data[2], 255, "imgdata2.data[\""+(2)+"\"]", "255");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.html
new file mode 100644
index 0000000000..2f7247fafc
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.length</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.length</h1>
+<p class="desc">getImageData() returns a correctly-sized Uint8ClampedArray</p>
+
+
+<script>
+var t = async_test("getImageData() returns a correctly-sized Uint8ClampedArray");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.worker.js
new file mode 100644
index 0000000000..dd2e3dd6c5
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.length.worker.js
@@ -0,0 +1,24 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.length
+// Description:getImageData() returns a correctly-sized Uint8ClampedArray
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns a correctly-sized Uint8ClampedArray");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.html
new file mode 100644
index 0000000000..5efc73663d
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.html
@@ -0,0 +1,75 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.nonfinite</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.nonfinite</h1>
+<p class="desc">getImageData() throws TypeError if arguments are not finite</p>
+
+
+<script>
+var t = async_test("getImageData() throws TypeError if arguments are not finite");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(-Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(NaN, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, -Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, NaN, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, -Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, NaN); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, Infinity, Infinity); });
+var posinfobj = { valueOf: function() { return Infinity; } },
+ neginfobj = { valueOf: function() { return -Infinity; } },
+ nanobj = { valueOf: function() { return -Infinity; } };
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(neginfobj, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(nanobj, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, neginfobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, nanobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, neginfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, nanobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, neginfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, nanobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, posinfobj, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, posinfobj, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, posinfobj, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, posinfobj, posinfobj); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.worker.js
new file mode 100644
index 0000000000..15b3950adc
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonfinite.worker.js
@@ -0,0 +1,71 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.nonfinite
+// Description:getImageData() throws TypeError if arguments are not finite
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() throws TypeError if arguments are not finite");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(-Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(NaN, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, -Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, NaN, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, -Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, NaN); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, Infinity, Infinity); });
+var posinfobj = { valueOf: function() { return Infinity; } },
+ neginfobj = { valueOf: function() { return -Infinity; } },
+ nanobj = { valueOf: function() { return -Infinity; } };
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(neginfobj, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(nanobj, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, neginfobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, nanobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, neginfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, nanobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, neginfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, 10, nanobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, posinfobj, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, posinfobj, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, posinfobj, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(posinfobj, 10, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, posinfobj, 10); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, posinfobj, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, posinfobj, 10, posinfobj); });
+assert_throws_js(TypeError, function() { ctx.getImageData(10, 10, posinfobj, posinfobj); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html
new file mode 100644
index 0000000000..bed3294be4
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.nonpremul</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.nonpremul</h1>
+<p class="desc">getImageData() returns non-premultiplied colors</p>
+
+
+<script>
+var t = async_test("getImageData() returns non-premultiplied colors");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgba(255, 255, 255, 0.5)';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(10, 10, 10, 10);
+_assert(imgdata.data[0] > 200, "imgdata.data[\""+(0)+"\"] > 200");
+_assert(imgdata.data[1] > 200, "imgdata.data[\""+(1)+"\"] > 200");
+_assert(imgdata.data[2] > 200, "imgdata.data[\""+(2)+"\"] > 200");
+_assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100");
+_assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.worker.js
new file mode 100644
index 0000000000..d568c31b38
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.nonpremul.worker.js
@@ -0,0 +1,30 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.nonpremul
+// Description:getImageData() returns non-premultiplied colors
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns non-premultiplied colors");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgba(255, 255, 255, 0.5)';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(10, 10, 10, 10);
+_assert(imgdata.data[0] > 200, "imgdata.data[\""+(0)+"\"] > 200");
+_assert(imgdata.data[1] > 200, "imgdata.data[\""+(1)+"\"] > 200");
+_assert(imgdata.data[2] > 200, "imgdata.data[\""+(2)+"\"] > 200");
+_assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100");
+_assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html
new file mode 100644
index 0000000000..a169cb59e3
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.order.alpha</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.order.alpha</h1>
+<p class="desc">getImageData() returns A in the fourth component</p>
+
+
+<script>
+var t = async_test("getImageData() returns A in the fourth component");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgba(0, 0, 0, 0.5)';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200");
+_assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.worker.js
new file mode 100644
index 0000000000..038844816f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.alpha.worker.js
@@ -0,0 +1,27 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.order.alpha
+// Description:getImageData() returns A in the fourth component
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns A in the fourth component");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgba(0, 0, 0, 0.5)';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200");
+_assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.html
new file mode 100644
index 0000000000..09eb58a7fd
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.order.cols</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.order.cols</h1>
+<p class="desc">getImageData() returns leftmost columns first</p>
+
+
+<script>
+var t = async_test("getImageData() returns leftmost columns first");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#fff';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 2, 50);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata.data[Math.round(imgdata.width/2*4)], 255, "imgdata.data[Math.round(imgdata.width/2*4)]", "255");
+_assertSame(imgdata.data[Math.round((imgdata.height/2)*imgdata.width*4)], 0, "imgdata.data[Math.round((imgdata.height/2)*imgdata.width*4)]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.worker.js
new file mode 100644
index 0000000000..6a13c4dee6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.cols.worker.js
@@ -0,0 +1,30 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.order.cols
+// Description:getImageData() returns leftmost columns first
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns leftmost columns first");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#fff';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 2, 50);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata.data[Math.round(imgdata.width/2*4)], 255, "imgdata.data[Math.round(imgdata.width/2*4)]", "255");
+_assertSame(imgdata.data[Math.round((imgdata.height/2)*imgdata.width*4)], 0, "imgdata.data[Math.round((imgdata.height/2)*imgdata.width*4)]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.html
new file mode 100644
index 0000000000..b56adf19fe
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.order.rgb</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.order.rgb</h1>
+<p class="desc">getImageData() returns R then G then B</p>
+
+
+<script>
+var t = async_test("getImageData() returns R then G then B");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#48c';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data[0], 0x44, "imgdata.data[\""+(0)+"\"]", "0x44");
+_assertSame(imgdata.data[1], 0x88, "imgdata.data[\""+(1)+"\"]", "0x88");
+_assertSame(imgdata.data[2], 0xCC, "imgdata.data[\""+(2)+"\"]", "0xCC");
+_assertSame(imgdata.data[3], 255, "imgdata.data[\""+(3)+"\"]", "255");
+_assertSame(imgdata.data[4], 0x44, "imgdata.data[\""+(4)+"\"]", "0x44");
+_assertSame(imgdata.data[5], 0x88, "imgdata.data[\""+(5)+"\"]", "0x88");
+_assertSame(imgdata.data[6], 0xCC, "imgdata.data[\""+(6)+"\"]", "0xCC");
+_assertSame(imgdata.data[7], 255, "imgdata.data[\""+(7)+"\"]", "255");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.worker.js
new file mode 100644
index 0000000000..771a777b9b
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rgb.worker.js
@@ -0,0 +1,33 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.order.rgb
+// Description:getImageData() returns R then G then B
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns R then G then B");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#48c';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data[0], 0x44, "imgdata.data[\""+(0)+"\"]", "0x44");
+_assertSame(imgdata.data[1], 0x88, "imgdata.data[\""+(1)+"\"]", "0x88");
+_assertSame(imgdata.data[2], 0xCC, "imgdata.data[\""+(2)+"\"]", "0xCC");
+_assertSame(imgdata.data[3], 255, "imgdata.data[\""+(3)+"\"]", "255");
+_assertSame(imgdata.data[4], 0x44, "imgdata.data[\""+(4)+"\"]", "0x44");
+_assertSame(imgdata.data[5], 0x88, "imgdata.data[\""+(5)+"\"]", "0x88");
+_assertSame(imgdata.data[6], 0xCC, "imgdata.data[\""+(6)+"\"]", "0xCC");
+_assertSame(imgdata.data[7], 255, "imgdata.data[\""+(7)+"\"]", "255");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html
new file mode 100644
index 0000000000..3ad1ced7d2
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.order.rows</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.order.rows</h1>
+<p class="desc">getImageData() returns topmost rows first</p>
+
+
+<script>
+var t = async_test("getImageData() returns topmost rows first");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#fff';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 100, 2);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata.data[Math.floor(imgdata.width/2*4)], 0, "imgdata.data[Math.floor(imgdata.width/2*4)]", "0");
+_assertSame(imgdata.data[(imgdata.height/2)*imgdata.width*4], 255, "imgdata.data[(imgdata.height/2)*imgdata.width*4]", "255");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.worker.js
new file mode 100644
index 0000000000..1f75f9301c
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.order.rows.worker.js
@@ -0,0 +1,30 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.order.rows
+// Description:getImageData() returns topmost rows first
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns topmost rows first");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#fff';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 100, 2);
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata.data[Math.floor(imgdata.width/2*4)], 0, "imgdata.data[Math.floor(imgdata.width/2*4)]", "0");
+_assertSame(imgdata.data[(imgdata.height/2)*imgdata.width*4], 255, "imgdata.data[(imgdata.height/2)*imgdata.width*4]", "255");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.html
new file mode 100644
index 0000000000..283dd07b4c
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.range</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.range</h1>
+<p class="desc">getImageData() returns values in the range [0, 255]</p>
+
+
+<script>
+var t = async_test("getImageData() returns values in the range [0, 255]");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#fff';
+ctx.fillRect(20, 10, 60, 10);
+var imgdata1 = ctx.getImageData(10, 5, 1, 1);
+_assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0");
+var imgdata2 = ctx.getImageData(30, 15, 1, 1);
+_assertSame(imgdata2.data[0], 255, "imgdata2.data[\""+(0)+"\"]", "255");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.worker.js
new file mode 100644
index 0000000000..9389c22bd3
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.range.worker.js
@@ -0,0 +1,30 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.range
+// Description:getImageData() returns values in the range [0, 255]
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns values in the range [0, 255]");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#fff';
+ctx.fillRect(20, 10, 60, 10);
+var imgdata1 = ctx.getImageData(10, 5, 1, 1);
+_assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0");
+var imgdata2 = ctx.getImageData(30, 15, 1, 1);
+_assertSame(imgdata2.data[0], 255, "imgdata2.data[\""+(0)+"\"]", "255");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.html
new file mode 100644
index 0000000000..a7e3d8574f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.source.negative</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.source.negative</h1>
+<p class="desc">getImageData() works with negative width and height, and returns top-to-bottom left-to-right</p>
+
+
+<script>
+var t = async_test("getImageData() works with negative width and height, and returns top-to-bottom left-to-right");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#fff';
+ctx.fillRect(20, 10, 60, 10);
+var imgdata1 = ctx.getImageData(85, 25, -10, -10);
+_assertSame(imgdata1.data[0], 255, "imgdata1.data[\""+(0)+"\"]", "255");
+_assertSame(imgdata1.data[1], 255, "imgdata1.data[\""+(1)+"\"]", "255");
+_assertSame(imgdata1.data[2], 255, "imgdata1.data[\""+(2)+"\"]", "255");
+_assertSame(imgdata1.data[3], 255, "imgdata1.data[\""+(3)+"\"]", "255");
+_assertSame(imgdata1.data[imgdata1.data.length-4+0], 0, "imgdata1.data[imgdata1.data.length-4+0]", "0");
+_assertSame(imgdata1.data[imgdata1.data.length-4+1], 0, "imgdata1.data[imgdata1.data.length-4+1]", "0");
+_assertSame(imgdata1.data[imgdata1.data.length-4+2], 0, "imgdata1.data[imgdata1.data.length-4+2]", "0");
+_assertSame(imgdata1.data[imgdata1.data.length-4+3], 255, "imgdata1.data[imgdata1.data.length-4+3]", "255");
+var imgdata2 = ctx.getImageData(0, 0, -1, -1);
+_assertSame(imgdata2.data[0], 0, "imgdata2.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata2.data[1], 0, "imgdata2.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata2.data[2], 0, "imgdata2.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata2.data[3], 0, "imgdata2.data[\""+(3)+"\"]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.worker.js
new file mode 100644
index 0000000000..e057315d57
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.negative.worker.js
@@ -0,0 +1,40 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.source.negative
+// Description:getImageData() works with negative width and height, and returns top-to-bottom left-to-right
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() works with negative width and height, and returns top-to-bottom left-to-right");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#000';
+ctx.fillRect(0, 0, 100, 50);
+ctx.fillStyle = '#fff';
+ctx.fillRect(20, 10, 60, 10);
+var imgdata1 = ctx.getImageData(85, 25, -10, -10);
+_assertSame(imgdata1.data[0], 255, "imgdata1.data[\""+(0)+"\"]", "255");
+_assertSame(imgdata1.data[1], 255, "imgdata1.data[\""+(1)+"\"]", "255");
+_assertSame(imgdata1.data[2], 255, "imgdata1.data[\""+(2)+"\"]", "255");
+_assertSame(imgdata1.data[3], 255, "imgdata1.data[\""+(3)+"\"]", "255");
+_assertSame(imgdata1.data[imgdata1.data.length-4+0], 0, "imgdata1.data[imgdata1.data.length-4+0]", "0");
+_assertSame(imgdata1.data[imgdata1.data.length-4+1], 0, "imgdata1.data[imgdata1.data.length-4+1]", "0");
+_assertSame(imgdata1.data[imgdata1.data.length-4+2], 0, "imgdata1.data[imgdata1.data.length-4+2]", "0");
+_assertSame(imgdata1.data[imgdata1.data.length-4+3], 255, "imgdata1.data[imgdata1.data.length-4+3]", "255");
+var imgdata2 = ctx.getImageData(0, 0, -1, -1);
+_assertSame(imgdata2.data[0], 0, "imgdata2.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata2.data[1], 0, "imgdata2.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata2.data[2], 0, "imgdata2.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata2.data[3], 0, "imgdata2.data[\""+(3)+"\"]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.html
new file mode 100644
index 0000000000..a071e44d55
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.source.outside</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.source.outside</h1>
+<p class="desc">getImageData() returns transparent black outside the canvas</p>
+
+
+<script>
+var t = async_test("getImageData() returns transparent black outside the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#08f';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata1 = ctx.getImageData(-10, 5, 1, 1);
+_assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata1.data[3], 0, "imgdata1.data[\""+(3)+"\"]", "0");
+var imgdata2 = ctx.getImageData(10, -5, 1, 1);
+_assertSame(imgdata2.data[0], 0, "imgdata2.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata2.data[1], 0, "imgdata2.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata2.data[2], 0, "imgdata2.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata2.data[3], 0, "imgdata2.data[\""+(3)+"\"]", "0");
+var imgdata3 = ctx.getImageData(200, 5, 1, 1);
+_assertSame(imgdata3.data[0], 0, "imgdata3.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata3.data[1], 0, "imgdata3.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata3.data[2], 0, "imgdata3.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata3.data[3], 0, "imgdata3.data[\""+(3)+"\"]", "0");
+var imgdata4 = ctx.getImageData(10, 60, 1, 1);
+_assertSame(imgdata4.data[0], 0, "imgdata4.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata4.data[1], 0, "imgdata4.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata4.data[2], 0, "imgdata4.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata4.data[3], 0, "imgdata4.data[\""+(3)+"\"]", "0");
+var imgdata5 = ctx.getImageData(100, 10, 1, 1);
+_assertSame(imgdata5.data[0], 0, "imgdata5.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata5.data[1], 0, "imgdata5.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata5.data[2], 0, "imgdata5.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata5.data[3], 0, "imgdata5.data[\""+(3)+"\"]", "0");
+var imgdata6 = ctx.getImageData(0, 10, 1, 1);
+_assertSame(imgdata6.data[0], 0, "imgdata6.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata6.data[1], 136, "imgdata6.data[\""+(1)+"\"]", "136");
+_assertSame(imgdata6.data[2], 255, "imgdata6.data[\""+(2)+"\"]", "255");
+_assertSame(imgdata6.data[3], 255, "imgdata6.data[\""+(3)+"\"]", "255");
+var imgdata7 = ctx.getImageData(-10, 10, 20, 20);
+_assertSame(imgdata7.data[ 0*4+0], 0, "imgdata7.data[ 0*4+0]", "0");
+_assertSame(imgdata7.data[ 0*4+1], 0, "imgdata7.data[ 0*4+1]", "0");
+_assertSame(imgdata7.data[ 0*4+2], 0, "imgdata7.data[ 0*4+2]", "0");
+_assertSame(imgdata7.data[ 0*4+3], 0, "imgdata7.data[ 0*4+3]", "0");
+_assertSame(imgdata7.data[ 9*4+0], 0, "imgdata7.data[ 9*4+0]", "0");
+_assertSame(imgdata7.data[ 9*4+1], 0, "imgdata7.data[ 9*4+1]", "0");
+_assertSame(imgdata7.data[ 9*4+2], 0, "imgdata7.data[ 9*4+2]", "0");
+_assertSame(imgdata7.data[ 9*4+3], 0, "imgdata7.data[ 9*4+3]", "0");
+_assertSame(imgdata7.data[10*4+0], 0, "imgdata7.data[10*4+0]", "0");
+_assertSame(imgdata7.data[10*4+1], 136, "imgdata7.data[10*4+1]", "136");
+_assertSame(imgdata7.data[10*4+2], 255, "imgdata7.data[10*4+2]", "255");
+_assertSame(imgdata7.data[10*4+3], 255, "imgdata7.data[10*4+3]", "255");
+_assertSame(imgdata7.data[19*4+0], 0, "imgdata7.data[19*4+0]", "0");
+_assertSame(imgdata7.data[19*4+1], 136, "imgdata7.data[19*4+1]", "136");
+_assertSame(imgdata7.data[19*4+2], 255, "imgdata7.data[19*4+2]", "255");
+_assertSame(imgdata7.data[19*4+3], 255, "imgdata7.data[19*4+3]", "255");
+_assertSame(imgdata7.data[20*4+0], 0, "imgdata7.data[20*4+0]", "0");
+_assertSame(imgdata7.data[20*4+1], 0, "imgdata7.data[20*4+1]", "0");
+_assertSame(imgdata7.data[20*4+2], 0, "imgdata7.data[20*4+2]", "0");
+_assertSame(imgdata7.data[20*4+3], 0, "imgdata7.data[20*4+3]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.worker.js
new file mode 100644
index 0000000000..4025ecd4be
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.outside.worker.js
@@ -0,0 +1,75 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.source.outside
+// Description:getImageData() returns transparent black outside the canvas
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns transparent black outside the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#08f';
+ctx.fillRect(0, 0, 100, 50);
+var imgdata1 = ctx.getImageData(-10, 5, 1, 1);
+_assertSame(imgdata1.data[0], 0, "imgdata1.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata1.data[1], 0, "imgdata1.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata1.data[2], 0, "imgdata1.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata1.data[3], 0, "imgdata1.data[\""+(3)+"\"]", "0");
+var imgdata2 = ctx.getImageData(10, -5, 1, 1);
+_assertSame(imgdata2.data[0], 0, "imgdata2.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata2.data[1], 0, "imgdata2.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata2.data[2], 0, "imgdata2.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata2.data[3], 0, "imgdata2.data[\""+(3)+"\"]", "0");
+var imgdata3 = ctx.getImageData(200, 5, 1, 1);
+_assertSame(imgdata3.data[0], 0, "imgdata3.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata3.data[1], 0, "imgdata3.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata3.data[2], 0, "imgdata3.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata3.data[3], 0, "imgdata3.data[\""+(3)+"\"]", "0");
+var imgdata4 = ctx.getImageData(10, 60, 1, 1);
+_assertSame(imgdata4.data[0], 0, "imgdata4.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata4.data[1], 0, "imgdata4.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata4.data[2], 0, "imgdata4.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata4.data[3], 0, "imgdata4.data[\""+(3)+"\"]", "0");
+var imgdata5 = ctx.getImageData(100, 10, 1, 1);
+_assertSame(imgdata5.data[0], 0, "imgdata5.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata5.data[1], 0, "imgdata5.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata5.data[2], 0, "imgdata5.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata5.data[3], 0, "imgdata5.data[\""+(3)+"\"]", "0");
+var imgdata6 = ctx.getImageData(0, 10, 1, 1);
+_assertSame(imgdata6.data[0], 0, "imgdata6.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata6.data[1], 136, "imgdata6.data[\""+(1)+"\"]", "136");
+_assertSame(imgdata6.data[2], 255, "imgdata6.data[\""+(2)+"\"]", "255");
+_assertSame(imgdata6.data[3], 255, "imgdata6.data[\""+(3)+"\"]", "255");
+var imgdata7 = ctx.getImageData(-10, 10, 20, 20);
+_assertSame(imgdata7.data[ 0*4+0], 0, "imgdata7.data[ 0*4+0]", "0");
+_assertSame(imgdata7.data[ 0*4+1], 0, "imgdata7.data[ 0*4+1]", "0");
+_assertSame(imgdata7.data[ 0*4+2], 0, "imgdata7.data[ 0*4+2]", "0");
+_assertSame(imgdata7.data[ 0*4+3], 0, "imgdata7.data[ 0*4+3]", "0");
+_assertSame(imgdata7.data[ 9*4+0], 0, "imgdata7.data[ 9*4+0]", "0");
+_assertSame(imgdata7.data[ 9*4+1], 0, "imgdata7.data[ 9*4+1]", "0");
+_assertSame(imgdata7.data[ 9*4+2], 0, "imgdata7.data[ 9*4+2]", "0");
+_assertSame(imgdata7.data[ 9*4+3], 0, "imgdata7.data[ 9*4+3]", "0");
+_assertSame(imgdata7.data[10*4+0], 0, "imgdata7.data[10*4+0]", "0");
+_assertSame(imgdata7.data[10*4+1], 136, "imgdata7.data[10*4+1]", "136");
+_assertSame(imgdata7.data[10*4+2], 255, "imgdata7.data[10*4+2]", "255");
+_assertSame(imgdata7.data[10*4+3], 255, "imgdata7.data[10*4+3]", "255");
+_assertSame(imgdata7.data[19*4+0], 0, "imgdata7.data[19*4+0]", "0");
+_assertSame(imgdata7.data[19*4+1], 136, "imgdata7.data[19*4+1]", "136");
+_assertSame(imgdata7.data[19*4+2], 255, "imgdata7.data[19*4+2]", "255");
+_assertSame(imgdata7.data[19*4+3], 255, "imgdata7.data[19*4+3]", "255");
+_assertSame(imgdata7.data[20*4+0], 0, "imgdata7.data[20*4+0]", "0");
+_assertSame(imgdata7.data[20*4+1], 0, "imgdata7.data[20*4+1]", "0");
+_assertSame(imgdata7.data[20*4+2], 0, "imgdata7.data[20*4+2]", "0");
+_assertSame(imgdata7.data[20*4+3], 0, "imgdata7.data[20*4+3]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.html
new file mode 100644
index 0000000000..4fd551db7d
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.source.size</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.source.size</h1>
+<p class="desc">getImageData() returns bigger ImageData for bigger source rectangle</p>
+
+
+<script>
+var t = async_test("getImageData() returns bigger ImageData for bigger source rectangle");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata1 = ctx.getImageData(0, 0, 10, 10);
+var imgdata2 = ctx.getImageData(0, 0, 20, 20);
+_assert(imgdata2.width > imgdata1.width, "imgdata2.width > imgdata1.width");
+_assert(imgdata2.height > imgdata1.height, "imgdata2.height > imgdata1.height");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.worker.js
new file mode 100644
index 0000000000..111f4b5869
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.source.size.worker.js
@@ -0,0 +1,26 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.source.size
+// Description:getImageData() returns bigger ImageData for bigger source rectangle
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() returns bigger ImageData for bigger source rectangle");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata1 = ctx.getImageData(0, 0, 10, 10);
+var imgdata2 = ctx.getImageData(0, 0, 20, 20);
+_assert(imgdata2.width > imgdata1.width, "imgdata2.width > imgdata1.width");
+_assert(imgdata2.height > imgdata1.height, "imgdata2.height > imgdata1.height");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.html
new file mode 100644
index 0000000000..f65f015e8f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.unaffected</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.unaffected</h1>
+<p class="desc">getImageData() is not affected by context state</p>
+
+
+<script>
+var t = async_test("getImageData() is not affected by context state");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 50, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(50, 0, 50, 50)
+ctx.save();
+ctx.translate(50, 0);
+ctx.globalAlpha = 0.1;
+ctx.globalCompositeOperation = 'destination-atop';
+ctx.shadowColor = '#f00';
+ctx.rect(0, 0, 5, 5);
+ctx.clip();
+var imgdata = ctx.getImageData(0, 0, 50, 50);
+ctx.restore();
+ctx.putImageData(imgdata, 50, 0);
+_assertPixelApprox(canvas, 25,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 75,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.worker.js
new file mode 100644
index 0000000000..a733c6ffdf
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.unaffected.worker.js
@@ -0,0 +1,38 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.unaffected
+// Description:getImageData() is not affected by context state
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() is not affected by context state");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 50, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(50, 0, 50, 50)
+ctx.save();
+ctx.translate(50, 0);
+ctx.globalAlpha = 0.1;
+ctx.globalCompositeOperation = 'destination-atop';
+ctx.shadowColor = '#f00';
+ctx.rect(0, 0, 5, 5);
+ctx.clip();
+var imgdata = ctx.getImageData(0, 0, 50, 50);
+ctx.restore();
+ctx.putImageData(imgdata, 50, 0);
+_assertPixelApprox(canvas, 25,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 75,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.html
new file mode 100644
index 0000000000..91cf5a25e2
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.html
@@ -0,0 +1,29 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.get.zero</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.get.zero</h1>
+<p class="desc">getImageData() throws INDEX_SIZE_ERR if size is zero</p>
+
+
+<script>
+var t = async_test("getImageData() throws INDEX_SIZE_ERR if size is zero");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 10, 0); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0, 10); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0, 0); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.worker.js
new file mode 100644
index 0000000000..07e8f3621b
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.get.zero.worker.js
@@ -0,0 +1,25 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.get.zero
+// Description:getImageData() throws INDEX_SIZE_ERR if size is zero
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("getImageData() throws INDEX_SIZE_ERR if size is zero");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 10, 0); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0, 10); });
+assert_throws_dom("INDEX_SIZE_ERR", function() { ctx.getImageData(1, 1, 0, 0); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.html
new file mode 100644
index 0000000000..8b1515c678
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.clamp</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.clamp</h1>
+<p class="desc">ImageData.data clamps numbers to [0, 255]</p>
+
+
+<script>
+var t = async_test("ImageData.data clamps numbers to [0, 255]");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = 300;
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = 100;
+imgdata.data[0] = -100;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = 200+Math.pow(2, 32);
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = 100;
+imgdata.data[0] = -200-Math.pow(2, 32);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = Math.pow(10, 39);
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = 100;
+imgdata.data[0] = -Math.pow(10, 39);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = -Infinity;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = Infinity;
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.worker.js
new file mode 100644
index 0000000000..0e2a33c75e
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.clamp.worker.js
@@ -0,0 +1,47 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.clamp
+// Description:ImageData.data clamps numbers to [0, 255]
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData.data clamps numbers to [0, 255]");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = 300;
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = 100;
+imgdata.data[0] = -100;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = 200+Math.pow(2, 32);
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = 100;
+imgdata.data[0] = -200-Math.pow(2, 32);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = Math.pow(10, 39);
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = 100;
+imgdata.data[0] = -Math.pow(10, 39);
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = -Infinity;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = Infinity;
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.html
new file mode 100644
index 0000000000..9fce409778
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.nan</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.nan</h1>
+<p class="desc">ImageData.data converts NaN to 0</p>
+
+
+<script>
+var t = async_test("ImageData.data converts NaN to 0");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = NaN;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = "cheese";
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.worker.js
new file mode 100644
index 0000000000..ef2eb21b37
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.nan.worker.js
@@ -0,0 +1,29 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.nan
+// Description:ImageData.data converts NaN to 0
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData.data converts NaN to 0");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = NaN;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 100;
+imgdata.data[0] = "cheese";
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.html
new file mode 100644
index 0000000000..05a4106b6b
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.properties</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.properties</h1>
+<p class="desc">ImageData objects have the right properties</p>
+
+
+<script>
+var t = async_test("ImageData objects have the right properties");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(typeof(imgdata.width), 'number', "typeof(imgdata.width)", "'number'");
+_assertSame(typeof(imgdata.height), 'number', "typeof(imgdata.height)", "'number'");
+_assertSame(typeof(imgdata.data), 'object', "typeof(imgdata.data)", "'object'");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.worker.js
new file mode 100644
index 0000000000..42c89ef117
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.properties.worker.js
@@ -0,0 +1,26 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.properties
+// Description:ImageData objects have the right properties
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData objects have the right properties");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+_assertSame(typeof(imgdata.width), 'number', "typeof(imgdata.width)", "'number'");
+_assertSame(typeof(imgdata.height), 'number', "typeof(imgdata.height)", "'number'");
+_assertSame(typeof(imgdata.data), 'object', "typeof(imgdata.data)", "'object'");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.html
new file mode 100644
index 0000000000..5fbdfc5ce0
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.html
@@ -0,0 +1,40 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.readonly</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.readonly</h1>
+<p class="desc">ImageData objects properties are read-only</p>
+
+
+<script>
+var t = async_test("ImageData objects properties are read-only");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+var w = imgdata.width;
+var h = imgdata.height;
+var d = imgdata.data;
+imgdata.width = 123;
+imgdata.height = 123;
+imgdata.data = [100,100,100,100];
+_assertSame(imgdata.width, w, "imgdata.width", "w");
+_assertSame(imgdata.height, h, "imgdata.height", "h");
+_assertSame(imgdata.data, d, "imgdata.data", "d");
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata.data[1], 0, "imgdata.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata.data[2], 0, "imgdata.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata.data[3], 0, "imgdata.data[\""+(3)+"\"]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.worker.js
new file mode 100644
index 0000000000..068761e2e6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.readonly.worker.js
@@ -0,0 +1,36 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.readonly
+// Description:ImageData objects properties are read-only
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData objects properties are read-only");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+var w = imgdata.width;
+var h = imgdata.height;
+var d = imgdata.data;
+imgdata.width = 123;
+imgdata.height = 123;
+imgdata.data = [100,100,100,100];
+_assertSame(imgdata.width, w, "imgdata.width", "w");
+_assertSame(imgdata.height, h, "imgdata.height", "h");
+_assertSame(imgdata.data, d, "imgdata.data", "d");
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+_assertSame(imgdata.data[1], 0, "imgdata.data[\""+(1)+"\"]", "0");
+_assertSame(imgdata.data[2], 0, "imgdata.data[\""+(2)+"\"]", "0");
+_assertSame(imgdata.data[3], 0, "imgdata.data[\""+(3)+"\"]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.html
new file mode 100644
index 0000000000..8b362a01c6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.round</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.round</h1>
+<p class="desc">ImageData.data rounds numbers with round-to-zero</p>
+
+
+<script>
+var t = async_test("ImageData.data rounds numbers with round-to-zero");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 0.499;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 0.5;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 0.501;
+_assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1");
+imgdata.data[0] = 1.499;
+_assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1");
+imgdata.data[0] = 1.5;
+_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
+imgdata.data[0] = 1.501;
+_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
+imgdata.data[0] = 2.5;
+_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
+imgdata.data[0] = 3.5;
+_assertSame(imgdata.data[0], 4, "imgdata.data[\""+(0)+"\"]", "4");
+imgdata.data[0] = 252.5;
+_assertSame(imgdata.data[0], 252, "imgdata.data[\""+(0)+"\"]", "252");
+imgdata.data[0] = 253.5;
+_assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254");
+imgdata.data[0] = 254.5;
+_assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254");
+imgdata.data[0] = 256.5;
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = -0.5;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = -1.5;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.worker.js
new file mode 100644
index 0000000000..4a88db9cdd
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.round.worker.js
@@ -0,0 +1,51 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.round
+// Description:ImageData.data rounds numbers with round-to-zero
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData.data rounds numbers with round-to-zero");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 0.499;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 0.5;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = 0.501;
+_assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1");
+imgdata.data[0] = 1.499;
+_assertSame(imgdata.data[0], 1, "imgdata.data[\""+(0)+"\"]", "1");
+imgdata.data[0] = 1.5;
+_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
+imgdata.data[0] = 1.501;
+_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
+imgdata.data[0] = 2.5;
+_assertSame(imgdata.data[0], 2, "imgdata.data[\""+(0)+"\"]", "2");
+imgdata.data[0] = 3.5;
+_assertSame(imgdata.data[0], 4, "imgdata.data[\""+(0)+"\"]", "4");
+imgdata.data[0] = 252.5;
+_assertSame(imgdata.data[0], 252, "imgdata.data[\""+(0)+"\"]", "252");
+imgdata.data[0] = 253.5;
+_assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254");
+imgdata.data[0] = 254.5;
+_assertSame(imgdata.data[0], 254, "imgdata.data[\""+(0)+"\"]", "254");
+imgdata.data[0] = 256.5;
+_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
+imgdata.data[0] = -0.5;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+imgdata.data[0] = -1.5;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.html
new file mode 100644
index 0000000000..95305c5bc4
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.set</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.set</h1>
+<p class="desc">ImageData.data can be modified</p>
+
+
+<script>
+var t = async_test("ImageData.data can be modified");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+_assertSame(imgdata.data[0], 100, "imgdata.data[\""+(0)+"\"]", "100");
+imgdata.data[0] = 200;
+_assertSame(imgdata.data[0], 200, "imgdata.data[\""+(0)+"\"]", "200");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.worker.js
new file mode 100644
index 0000000000..fcb16ab577
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.set.worker.js
@@ -0,0 +1,27 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.set
+// Description:ImageData.data can be modified
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData.data can be modified");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+_assertSame(imgdata.data[0], 100, "imgdata.data[\""+(0)+"\"]", "100");
+imgdata.data[0] = 200;
+_assertSame(imgdata.data[0], 200, "imgdata.data[\""+(0)+"\"]", "200");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.html
new file mode 100644
index 0000000000..a7b5d578d2
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.string</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.string</h1>
+<p class="desc">ImageData.data converts strings to numbers with ToNumber</p>
+
+
+<script>
+var t = async_test("ImageData.data converts strings to numbers with ToNumber");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = "110";
+_assertSame(imgdata.data[0], 110, "imgdata.data[\""+(0)+"\"]", "110");
+imgdata.data[0] = 100;
+imgdata.data[0] = "0x78";
+_assertSame(imgdata.data[0], 120, "imgdata.data[\""+(0)+"\"]", "120");
+imgdata.data[0] = 100;
+imgdata.data[0] = " +130e0 ";
+_assertSame(imgdata.data[0], 130, "imgdata.data[\""+(0)+"\"]", "130");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.worker.js
new file mode 100644
index 0000000000..6c2dcc8b42
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.string.worker.js
@@ -0,0 +1,32 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.string
+// Description:ImageData.data converts strings to numbers with ToNumber
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData.data converts strings to numbers with ToNumber");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = "110";
+_assertSame(imgdata.data[0], 110, "imgdata.data[\""+(0)+"\"]", "110");
+imgdata.data[0] = 100;
+imgdata.data[0] = "0x78";
+_assertSame(imgdata.data[0], 120, "imgdata.data[\""+(0)+"\"]", "120");
+imgdata.data[0] = 100;
+imgdata.data[0] = " +130e0 ";
+_assertSame(imgdata.data[0], 130, "imgdata.data[\""+(0)+"\"]", "130");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.html
new file mode 100644
index 0000000000..a2533a52e6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.object.undefined</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.object.undefined</h1>
+<p class="desc">ImageData.data converts undefined to 0</p>
+
+
+<script>
+var t = async_test("ImageData.data converts undefined to 0");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = undefined;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.worker.js
new file mode 100644
index 0000000000..f6b62993f6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.object.undefined.worker.js
@@ -0,0 +1,26 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.object.undefined
+// Description:ImageData.data converts undefined to 0
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("ImageData.data converts undefined to 0");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+imgdata.data[0] = 100;
+imgdata.data[0] = undefined;
+_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.html
new file mode 100644
index 0000000000..ecda85bd12
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.alpha</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.alpha</h1>
+<p class="desc">putImageData() puts non-solid image data correctly</p>
+
+
+<script>
+var t = async_test("putImageData() puts non-solid image data correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgba(0, 255, 0, 0.25)';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,64, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.worker.js
new file mode 100644
index 0000000000..3349c69286
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.alpha.worker.js
@@ -0,0 +1,29 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.alpha
+// Description:putImageData() puts non-solid image data correctly
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() puts non-solid image data correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = 'rgba(0, 255, 0, 0.25)';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,64, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.html
new file mode 100644
index 0000000000..d140cc39ab
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.basic</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.basic</h1>
+<p class="desc">putImageData() puts image data from getImageData() onto the canvas</p>
+
+
+<script>
+var t = async_test("putImageData() puts image data from getImageData() onto the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.worker.js
new file mode 100644
index 0000000000..276fea2d12
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.basic.worker.js
@@ -0,0 +1,29 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.basic
+// Description:putImageData() puts image data from getImageData() onto the canvas
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() puts image data from getImageData() onto the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.html
new file mode 100644
index 0000000000..121a45fae8
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.clip</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.clip</h1>
+<p class="desc">putImageData() is not affected by clipping regions</p>
+
+
+<script>
+var t = async_test("putImageData() is not affected by clipping regions");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.beginPath();
+ctx.rect(0, 0, 50, 50);
+ctx.clip();
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 25,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 75,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.worker.js
new file mode 100644
index 0000000000..9188b3cf88
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.clip.worker.js
@@ -0,0 +1,33 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.clip
+// Description:putImageData() is not affected by clipping regions
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() is not affected by clipping regions");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.beginPath();
+ctx.rect(0, 0, 50, 50);
+ctx.clip();
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 25,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 75,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.html
new file mode 100644
index 0000000000..7ade3b1deb
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.created</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.created</h1>
+<p class="desc">putImageData() puts image data from createImageData() onto the canvas</p>
+
+
+<script>
+var t = async_test("putImageData() puts image data from createImageData() onto the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.createImageData(100, 50);
+for (var i = 0; i < imgdata.data.length; i += 4) {
+ imgdata.data[i] = 0;
+ imgdata.data[i+1] = 255;
+ imgdata.data[i+2] = 0;
+ imgdata.data[i+3] = 255;
+}
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.worker.js
new file mode 100644
index 0000000000..fd6b5ec8e0
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.created.worker.js
@@ -0,0 +1,33 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.created
+// Description:putImageData() puts image data from createImageData() onto the canvas
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() puts image data from createImageData() onto the canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.createImageData(100, 50);
+for (var i = 0; i < imgdata.data.length; i += 4) {
+ imgdata.data[i] = 0;
+ imgdata.data[i+1] = 255;
+ imgdata.data[i+2] = 0;
+ imgdata.data[i+3] = 255;
+}
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.html
new file mode 100644
index 0000000000..af90d71991
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.cross</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.cross</h1>
+<p class="desc">putImageData() accepts image data got from a different canvas</p>
+
+
+<script>
+var t = async_test("putImageData() accepts image data got from a different canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var offscreenCanvas2 = new OffscreenCanvas(100, 50);
+var ctx2 = offscreenCanvas2.getContext('2d');
+ctx2.fillStyle = '#0f0';
+ctx2.fillRect(0, 0, 100, 50)
+var imgdata = ctx2.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.worker.js
new file mode 100644
index 0000000000..bdeaa35245
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.cross.worker.js
@@ -0,0 +1,31 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.cross
+// Description:putImageData() accepts image data got from a different canvas
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() accepts image data got from a different canvas");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var offscreenCanvas2 = new OffscreenCanvas(100, 50);
+var ctx2 = offscreenCanvas2.getContext('2d');
+ctx2.fillStyle = '#0f0';
+ctx2.fillRect(0, 0, 100, 50)
+var imgdata = ctx2.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.html
new file mode 100644
index 0000000000..e2fbcb2702
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.dirty.negative</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.dirty.negative</h1>
+<p class="desc">putImageData() handles negative-sized dirty rectangles correctly</p>
+
+
+<script>
+var t = async_test("putImageData() handles negative-sized dirty rectangles correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 20, 20)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(40, 20, 20, 20)
+ctx.putImageData(imgdata, 40, 20, 20, 20, -20, -20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 35,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 65,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,45, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.worker.js
new file mode 100644
index 0000000000..5eec264c75
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.negative.worker.js
@@ -0,0 +1,37 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.dirty.negative
+// Description:putImageData() handles negative-sized dirty rectangles correctly
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() handles negative-sized dirty rectangles correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 20, 20)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(40, 20, 20, 20)
+ctx.putImageData(imgdata, 40, 20, 20, 20, -20, -20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 35,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 65,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,45, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.html
new file mode 100644
index 0000000000..aaf48a762b
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.dirty.outside</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.dirty.outside</h1>
+<p class="desc">putImageData() handles dirty rectangles outside the canvas correctly</p>
+
+
+<script>
+var t = async_test("putImageData() handles dirty rectangles outside the canvas correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 100, 20, 20, 20, -20, -20);
+ctx.putImageData(imgdata, 200, 200, 0, 0, 100, 50);
+ctx.putImageData(imgdata, 40, 20, -30, -20, 30, 20);
+ctx.putImageData(imgdata, -30, 20, 0, 0, 30, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 98,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 98,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 98,45, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 1,5, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 1,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 1,45, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.worker.js
new file mode 100644
index 0000000000..9f537135da
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.outside.worker.js
@@ -0,0 +1,38 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.dirty.outside
+// Description:putImageData() handles dirty rectangles outside the canvas correctly
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() handles dirty rectangles outside the canvas correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 100, 20, 20, 20, -20, -20);
+ctx.putImageData(imgdata, 200, 200, 0, 0, 100, 50);
+ctx.putImageData(imgdata, 40, 20, -30, -20, 30, 20);
+ctx.putImageData(imgdata, -30, 20, 0, 0, 30, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 98,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 98,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 98,45, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 1,5, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 1,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 1,45, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.html
new file mode 100644
index 0000000000..e973eb6ca4
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.dirty.rect1</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.dirty.rect1</h1>
+<p class="desc">putImageData() only modifies areas inside the dirty rectangle, using width and height</p>
+
+
+<script>
+var t = async_test("putImageData() only modifies areas inside the dirty rectangle, using width and height");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 20, 20)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(40, 20, 20, 20)
+ctx.putImageData(imgdata, 40, 20, 0, 0, 20, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 35,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 65,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,45, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.worker.js
new file mode 100644
index 0000000000..fdbe6561ce
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect1.worker.js
@@ -0,0 +1,37 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.dirty.rect1
+// Description:putImageData() only modifies areas inside the dirty rectangle, using width and height
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() only modifies areas inside the dirty rectangle, using width and height");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 20, 20)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(40, 20, 20, 20)
+ctx.putImageData(imgdata, 40, 20, 0, 0, 20, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 35,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 65,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,45, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.html
new file mode 100644
index 0000000000..9b275429e6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.html
@@ -0,0 +1,41 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.dirty.rect2</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.dirty.rect2</h1>
+<p class="desc">putImageData() only modifies areas inside the dirty rectangle, using x and y</p>
+
+
+<script>
+var t = async_test("putImageData() only modifies areas inside the dirty rectangle, using x and y");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#0f0';
+ctx.fillRect(60, 30, 20, 20)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(40, 20, 20, 20)
+ctx.putImageData(imgdata, -20, -10, 60, 30, 20, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 35,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 65,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,45, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.worker.js
new file mode 100644
index 0000000000..3578ceec25
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.rect2.worker.js
@@ -0,0 +1,37 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.dirty.rect2
+// Description:putImageData() only modifies areas inside the dirty rectangle, using x and y
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() only modifies areas inside the dirty rectangle, using x and y");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#0f0';
+ctx.fillRect(60, 30, 20, 20)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(40, 20, 20, 20)
+ctx.putImageData(imgdata, -20, -10, 60, 30, 20, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 35,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 65,25, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,15, 0,255,0,255, 2);
+_assertPixelApprox(canvas, 50,45, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.html
new file mode 100644
index 0000000000..c1b6735d25
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.dirty.zero</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.dirty.zero</h1>
+<p class="desc">putImageData() with zero-sized dirty rectangle puts nothing</p>
+
+
+<script>
+var t = async_test("putImageData() with zero-sized dirty rectangle puts nothing");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0, 0, 0, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.worker.js
new file mode 100644
index 0000000000..db09379c62
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.dirty.zero.worker.js
@@ -0,0 +1,29 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.dirty.zero
+// Description:putImageData() with zero-sized dirty rectangle puts nothing
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() with zero-sized dirty rectangle puts nothing");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.putImageData(imgdata, 0, 0, 0, 0, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.html
new file mode 100644
index 0000000000..543d9ff293
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.modified</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.modified</h1>
+<p class="desc">putImageData() puts modified image data correctly</p>
+
+
+<script>
+var t = async_test("putImageData() puts modified image data correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(45, 20, 10, 10)
+var imgdata = ctx.getImageData(45, 20, 10, 10);
+for (var i = 0, len = imgdata.width*imgdata.height*4; i < len; i += 4)
+{
+ imgdata.data[i] = 0;
+ imgdata.data[i+1] = 255;
+}
+ctx.putImageData(imgdata, 45, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.worker.js
new file mode 100644
index 0000000000..b238d56cf9
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.modified.worker.js
@@ -0,0 +1,34 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.modified
+// Description:putImageData() puts modified image data correctly
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() puts modified image data correctly");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+ctx.fillStyle = '#f00';
+ctx.fillRect(45, 20, 10, 10)
+var imgdata = ctx.getImageData(45, 20, 10, 10);
+for (var i = 0, len = imgdata.width*imgdata.height*4; i < len; i += 4)
+{
+ imgdata.data[i] = 0;
+ imgdata.data[i+1] = 255;
+}
+ctx.putImageData(imgdata, 45, 20);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.html
new file mode 100644
index 0000000000..6590f761ad
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.html
@@ -0,0 +1,109 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.nonfinite</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.nonfinite</h1>
+<p class="desc">putImageData() throws TypeError if arguments are not finite</p>
+
+
+<script>
+var t = async_test("putImageData() throws TypeError if arguments are not finite");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, -Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, NaN); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, -Infinity, 10, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, NaN, 10, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, -Infinity, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, NaN, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, -Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, NaN, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, -Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, NaN, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, -Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, 10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, 10, NaN); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, Infinity, Infinity); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.worker.js
new file mode 100644
index 0000000000..04298fa99f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.nonfinite.worker.js
@@ -0,0 +1,105 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.nonfinite
+// Description:putImageData() throws TypeError if arguments are not finite
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() throws TypeError if arguments are not finite");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = ctx.getImageData(0, 0, 10, 10);
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, -Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, NaN); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, -Infinity, 10, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, NaN, 10, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, -Infinity, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, NaN, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, -Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, NaN, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, -Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, NaN, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, -Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, NaN, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, 10, -Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, 10, NaN); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, Infinity, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, Infinity, 10, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, Infinity, 10, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, 10, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, Infinity, 10, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, Infinity, 10); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, Infinity, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, Infinity, 10, Infinity); });
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 10, 10, 10, 10, Infinity, Infinity); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.html
new file mode 100644
index 0000000000..3a51c9719c
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.null</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.null</h1>
+<p class="desc">putImageData() with null imagedata throws TypeError</p>
+
+
+<script>
+var t = async_test("putImageData() with null imagedata throws TypeError");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.putImageData(null, 0, 0); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.worker.js
new file mode 100644
index 0000000000..0b5b746ba0
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.null.worker.js
@@ -0,0 +1,23 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.null
+// Description:putImageData() with null imagedata throws TypeError
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() with null imagedata throws TypeError");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+assert_throws_js(TypeError, function() { ctx.putImageData(null, 0, 0); });
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.html
new file mode 100644
index 0000000000..53e3ac4fce
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.path</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.path</h1>
+<p class="desc">putImageData() does not affect the current path</p>
+
+
+<script>
+var t = async_test("putImageData() does not affect the current path");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.rect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.putImageData(imgdata, 0, 0);
+ctx.fillStyle = '#0f0';
+ctx.fill();
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.worker.js
new file mode 100644
index 0000000000..81bd03eb4f
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.path.worker.js
@@ -0,0 +1,30 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.path
+// Description:putImageData() does not affect the current path
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() does not affect the current path");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.rect(0, 0, 100, 50);
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.putImageData(imgdata, 0, 0);
+ctx.fillStyle = '#0f0';
+ctx.fill();
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.html
new file mode 100644
index 0000000000..8d94f9bbf6
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.unaffected</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.unaffected</h1>
+<p class="desc">putImageData() is not affected by context state</p>
+
+
+<script>
+var t = async_test("putImageData() is not affected by context state");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.globalAlpha = 0.1;
+ctx.globalCompositeOperation = 'destination-atop';
+ctx.shadowColor = '#f00';
+ctx.shadowBlur = 1;
+ctx.translate(100, 50);
+ctx.scale(0.1, 0.1);
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.worker.js
new file mode 100644
index 0000000000..9b931717f0
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unaffected.worker.js
@@ -0,0 +1,35 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.unaffected
+// Description:putImageData() is not affected by context state
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() is not affected by context state");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+ctx.fillStyle = '#0f0';
+ctx.fillRect(0, 0, 100, 50)
+var imgdata = ctx.getImageData(0, 0, 100, 50);
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50)
+ctx.globalAlpha = 0.1;
+ctx.globalCompositeOperation = 'destination-atop';
+ctx.shadowColor = '#f00';
+ctx.shadowBlur = 1;
+ctx.translate(100, 50);
+ctx.scale(0.1, 0.1);
+ctx.putImageData(imgdata, 0, 0);
+_assertPixelApprox(canvas, 50,25, 0,255,0,255, 2);
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.html
new file mode 100644
index 0000000000..b3aff6f49c
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.unchanged</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.unchanged</h1>
+<p class="desc">putImageData(getImageData(...), ...) has no effect</p>
+
+
+<script>
+var t = async_test("putImageData(getImageData(...), ...) has no effect");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var i = 0;
+for (var y = 0; y < 16; ++y) {
+ for (var x = 0; x < 16; ++x, ++i) {
+ ctx.fillStyle = 'rgba(' + i + ',' + (Math.floor(i*1.5) % 256) + ',' + (Math.floor(i*23.3) % 256) + ',' + (i/256) + ')';
+ ctx.fillRect(x, y, 1, 1);
+ }
+}
+var imgdata1 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
+var olddata = [];
+for (var i = 0; i < imgdata1.data.length; ++i)
+ olddata[i] = imgdata1.data[i];
+ctx.putImageData(imgdata1, 0.1, 0.2);
+var imgdata2 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
+for (var i = 0; i < imgdata2.data.length; ++i) {
+ _assertSame(olddata[i], imgdata2.data[i], "olddata[\""+(i)+"\"]", "imgdata2.data[\""+(i)+"\"]");
+}
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.worker.js
new file mode 100644
index 0000000000..231ba3860d
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.unchanged.worker.js
@@ -0,0 +1,38 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.unchanged
+// Description:putImageData(getImageData(...), ...) has no effect
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData(getImageData(...), ...) has no effect");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var i = 0;
+for (var y = 0; y < 16; ++y) {
+ for (var x = 0; x < 16; ++x, ++i) {
+ ctx.fillStyle = 'rgba(' + i + ',' + (Math.floor(i*1.5) % 256) + ',' + (Math.floor(i*23.3) % 256) + ',' + (i/256) + ')';
+ ctx.fillRect(x, y, 1, 1);
+ }
+}
+var imgdata1 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
+var olddata = [];
+for (var i = 0; i < imgdata1.data.length; ++i)
+ olddata[i] = imgdata1.data[i];
+ctx.putImageData(imgdata1, 0.1, 0.2);
+var imgdata2 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
+for (var i = 0; i < imgdata2.data.length; ++i) {
+ _assertSame(olddata[i], imgdata2.data[i], "olddata[\""+(i)+"\"]", "imgdata2.data[\""+(i)+"\"]");
+}
+t.done();
+
+});
+done();
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.html b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.html
new file mode 100644
index 0000000000..8e8ca53a9a
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.html
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
+<title>OffscreenCanvas test: 2d.imageData.put.wrongtype</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/html/canvas/resources/canvas-tests.js"></script>
+
+<h1>2d.imageData.put.wrongtype</h1>
+<p class="desc">putImageData() does not accept non-ImageData objects</p>
+
+
+<script>
+var t = async_test("putImageData() does not accept non-ImageData objects");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = { width: 1, height: 1, data: [255, 0, 0, 255] };
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 0, 0); });
+assert_throws_js(TypeError, function() { ctx.putImageData("cheese", 0, 0); });
+assert_throws_js(TypeError, function() { ctx.putImageData(42, 0, 0); });
+t.done();
+
+});
+</script>
diff --git a/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.worker.js b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.worker.js
new file mode 100644
index 0000000000..9c58133ac9
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/pixel-manipulation/2d.imageData.put.wrongtype.worker.js
@@ -0,0 +1,26 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.imageData.put.wrongtype
+// Description:putImageData() does not accept non-ImageData objects
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+var t = async_test("putImageData() does not accept non-ImageData objects");
+var t_pass = t.done.bind(t);
+var t_fail = t.step_func(function(reason) {
+ throw reason;
+});
+t.step(function() {
+
+var canvas = new OffscreenCanvas(100, 50);
+var ctx = canvas.getContext('2d');
+
+var imgdata = { width: 1, height: 1, data: [255, 0, 0, 255] };
+assert_throws_js(TypeError, function() { ctx.putImageData(imgdata, 0, 0); });
+assert_throws_js(TypeError, function() { ctx.putImageData("cheese", 0, 0); });
+assert_throws_js(TypeError, function() { ctx.putImageData(42, 0, 0); });
+t.done();
+
+});
+done();