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Re: [whatwg] [2D Canvas] Proposal: batch variants of drawImage

From: Robert O'Callahan <robert@ocallahan.org>
Date: Tue, 5 Aug 2014 10:39:22 +1200
Message-ID: <CAOp6jLbNhoDf1dov=51zxx5yr7Mt-i7oGpz5ym27yFRDepi60Q@mail.gmail.com>
To: Justin Novosad <junov@google.com>
Cc: WHAT Working Group <whatwg@whatwg.org>
It looks reasonable to me.

How do these calls interact with globalAlpha etc? You talk about
decomposing them to individual drawImage calls; does that mean each image
draw is treated as a separate composite operation?

Currently you have to choose between using a single image or passing an
array with one element per image-draw. It seems to me it would be more
flexible to always pass an array but allow the parameters array to refer to
an image by index. Did you consider that approach?

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Received on Monday, 4 August 2014 22:39:48 UTC

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