firefox bmp to ico converter is not good, results in jagged edges especially

UNCONFIRMED
Unassigned

Status

()

Core
ImageLib
UNCONFIRMED
4 years ago
3 years ago

People

(Reporter: noitidart, Unassigned)

Tracking

31 Branch
x86
Windows XP
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Reporter)

Description

4 years ago
User Agent: Mozilla/5.0 (Windows NT 5.1; rv:31.0) Gecko/20100101 Firefox/31.0 (Beta/Release)
Build ID: 20140616143923

Steps to reproduce:

Saved canvas to blob with bmp to ico conversion:
 canvas.toBlob(blobCallback(sizes[i]), "image/vnd.microsoft.icon", "-moz-parse-options:format=bmp;bpp=32");

But final result was very jagged. Compared it to js-ctypes bmp to ico conversion and it did not have this issue:

please see StackOverflow topic here: http://stackoverflow.com/questions/24255298/issue-with-reduced-quality-on-file-after-saving-converting-from-canvas
Component: Untriaged → ImageLib
Product: Firefox → Core
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