Undo ImageData texture uploads #732
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adroitwhiz
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Resolves
Resolves #731
Proposed Changes
This PR changes
texImage2Dcalls back to being passed<canvas>elements directly rather thanImageData.Reason for Changes
When uploading textures with premultiplied alpha, it's faster to pass in sources whose alpha is already premultiplied--see #731 for more detail.
Test Coverage
Should be tested manually