Bug 51652 - Add getBlob(in DOMString contentType)
: Add getBlob(in DOMString contentType)
Status: UNCONFIRMED
Product: WebKit
Classification: Unclassified
Component: Canvas
: 528+ (Nightly build)
: PC Mac OS X 10.5
: P2 Normal
Assigned To: Nobody
:
Depends on:
Blocks:
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Reported: 2010-12-27 13:22 PST by Charles Pritchard
Modified: 2012-10-17 09:17 PDT (History)
7 users (show)

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Description Charles Pritchard 2010-12-27 13:22:46 PST
Using the same semantics as toDataURL (image/png is the default output), add Blob getBlob([Optional] in DOMString contentType, [Optional] args...).

Currently, an image must be copied to a string using toDataURL, then to an array buffer using base64 decoding, before it can be run through createObjectURL. getBlob would reduce the number of operations.
Comment 2 Charles Pritchard 2011-09-04 10:10:05 PDT
Support for Canvas toBlob is likely to come from Chromium:
http://code.google.com/p/chromium/issues/detail?id=67587