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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /layout/reftests/bugs/670442-1.html | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/reftests/bugs/670442-1.html')
| -rw-r--r-- | layout/reftests/bugs/670442-1.html | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/layout/reftests/bugs/670442-1.html b/layout/reftests/bugs/670442-1.html new file mode 100644 index 0000000000..3823cd2ff0 --- /dev/null +++ b/layout/reftests/bugs/670442-1.html @@ -0,0 +1,41 @@ +<!DOCTYPE html> +<html> + <body> + <div> + <canvas id="c1" width="400" height="400"></canvas> + <canvas id="c2" width="400" height="400"></canvas> + </div> + <script type="text/javascript"> + var canv1 = document.getElementById('c1'); + var canv2 = document.getElementById('c2'); + var ctx1 = canv1.getContext('2d'); + var ctx2 = canv2.getContext('2d'); + + ctx1.strokeStyle = '#FF0000'; + ctx1.moveTo(10, 10); + ctx1.lineTo(390, 390); + ctx1.stroke(); + + function doTest() + { + // Save img data + var imgData = ctx1.getImageData(0, 0, canv1.width, canv1.height); + + // Resize canvas - seems to cause the bug + canv1.width = 0; + canv1.height = 0; + canv1.width = 400; + canv1.height = 400; + + // Put image data from ctx1 to ctx2 + ctx2.putImageData(imgData, 0, 0); + + // Draw canvas2 on canvas1 + ctx1.drawImage(canv2, 0, 0); + }; + + doTest(); + doTest(); + </script> + </body> +</html> |