11459 2010-12-02 23:31:12 +0000 "If the image argument is an HTMLImageElement object that is not fully decodable ... then the implementation must return without drawing anything." This is terrible! It completely prohibits displaying images incrementally. When I'm loading a 5 MB 3000x3 2011-08-04 05:03:31 +0000 1 1 1 Unclassified HTML WG LC1 HTML Canvas 2D Context unspecified Other other RESOLVED NEEDSINFO http://www.whatwg.org/specs/web-apps/current-work/#images P3 normal --- 1 contributor ian ayg bzbarsky ian mike philipj public-html-admin public-html-wg-issue-tracking public-html-bugzilla oldest_to_newest 43010 0 contributor 2010-12-02 23:31:12 +0000 Specification: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html Section: http://www.whatwg.org/specs/web-apps/current-work/complete.html#images Comment: "If the image argument is an HTMLImageElement object that is not fully decodable ... then the implementation must return without drawing anything." This is terrible! It completely prohibits displaying images incrementally. When I'm loading a 5 MB 3000x3000 image, not being able to draw partially-loaded images is a serioius problem. If an image isn't fully loaded, allow (don't require) UA's to blit what data is available. Don't preemptively destroy all progressive loading! Posted from: 76.24.235.31 44069 1 ian 2011-01-11 00:34:17 +0000 EDITOR'S RESPONSE: This is an Editor's Response to your comment. If you are satisfied with this response, please change the state of this bug to CLOSED. If you have additional information and would like the editor to reconsider, please reopen this bug. If you would like to escalate the issue to the full HTML Working Group, please add the TrackerRequest keyword to this bug, and suggest title and text for the tracker issue; or you may create a tracker issue yourself, if you are able to do so. For more details, see this document: http://dev.w3.org/html5/decision-policy/decision-policy.html Status: Did Not Understand Request Change Description: no spec change Rationale: Could you elaborate on how you would do progressive loading with <canvas>? An example showing how this would work would be great. I'm not sure I follow. 52666 2 mike 2011-08-04 05:03:31 +0000 mass-move component to LC1