Index: third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html |
diff --git a/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html b/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..99da913b175c5b493ab9beeae821a4a051129c44 |
--- /dev/null |
+++ b/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-from-canvas-toBlob.html |
@@ -0,0 +1,47 @@ |
+<!DOCTYPE html> |
+<script src="../../resources/js-test.js"></script> |
+<script> |
+jsTestIsAsync = true; |
+ |
+description("Tests that createImageBitmap from a canvas.toBlob object should have the same pixel data as the blob."); |
+ |
+var imageData2; |
+var imageData3; |
+ |
+var canvas1 = document.createElement("canvas"); |
+var ctx1 = canvas1.getContext("2d"); |
+ctx1.fillStyle = "#FF0000"; |
+ctx1.fillRect(0, 0, 150, 75); |
+ |
+var newImg = new Image(); |
+newImg.onload = function() { |
+ var canvas3 = document.createElement("canvas"); |
+ var ctx3 = canvas3.getContext("2d"); |
+ ctx3.drawImage(newImg, 0, 0, 150, 75); |
+ |
+ imageData3 = ctx3.getImageData(0, 0, 150, 75).data; |
+ var imageMatched = true; |
+ for (var i = 1; i < imageData2.length; i++) { |
+ if (imageData2[i] != imageData3[i]) { |
+ imageMatched = false; |
+ break; |
+ } |
+ } |
+ if (imageMatched) |
+ testPassed("image data from the created ImageBitmap and the originated blob is the same"); |
+ else |
+ testFailed("image data from the created ImageBitmap and the originated blob is NOT the same"); |
+ finishJSTest(); |
+} |
+ |
+canvas1.toBlob(function(blob) { |
+ createImageBitmap(blob).then(imageBitmap => { |
Justin Novosad
2016/01/14 15:02:53
As discussed on blink-dev, there may be concurrenc
|
+ var canvas2 = document.createElement("canvas"); |
+ var ctx2 = canvas2.getContext("2d"); |
+ ctx2.drawImage(imageBitmap, 0, 0, 150, 75); |
+ imageData2 = ctx2.getImageData(0, 0, 150, 75).data; |
+ url = URL.createObjectURL(blob); |
+ newImg.src = url; |
+ }); |
+}); |
+</script> |