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[Bug 13085] New: Enhancement: Set component for whole image?

From: <bugzilla@jessica.w3.org>
Date: Wed, 29 Jun 2011 10:44:12 +0000
To: public-html@w3.org
Message-ID: <bug-13085-2495@http.www.w3.org/Bugs/Public/>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=13085

           Summary: Enhancement: Set component for whole image?
           Product: HTML WG
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTML Canvas 2D Context (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: j.chetwynd@btinternet.com
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,
                    public-html@w3.org


CanvasPixelArray requires "pixel's red, green, blue, and alpha components being
given in that order for each pixel."

However in many cases, anyone one or more of these components may be common to
all the pixels in the image, for instance the alpha may be common to all
pixels, or as at http://www.peepo.com, only red is varied with green = 127,
blue = 127  and alpha = 63 for all canvas pixels.

if this isn't appropriate please could someone in the WG please clarify why
this is best done by setting all four components, for each and every pixel? or
perhaps more likely, what aspect I have failed to understand?

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Received on Wednesday, 29 June 2011 10:44:17 GMT

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