Canvas drawing and Retina display: doable?

Question

Working with phoneGap implementing drawing with Canvas. The catch we\'ve run into is that canvas expects specific pixel dimensions. This is fine except that the iPhone 4\'s

Answer 1

There is a drop-in polyfill that will take care of most basic drawing operations for you, and remove the ambiguity between browsers that handle this automatically for you (safari) and others that don't.

https://github.com/jondavidjohn/hidpi-canvas-polyfill

You simply include it before your drawing code and it should give you decent retina support automatically.