Some of you _may_ find this useful...
A list of Canvas properties captured via AJAX, stored in a MySQL database via PHP which also converts this to an HTML table (with colouring)
Across the X axis is placed the browser's User Agent string.
Each table cell is coloured.
Grey means that this property did not exist in the given browser.
A yellow row means that this property existed on all platforms but gave different results in at least one case.
A default setup is used. That is canvasElement.getContext('2d') has been called but no other canvas functions.
Safari reports CSS style named colours. All others report 6 digit hex (what about alpha).
Safari supports a whole bunch of set$propertyName type calls. No others do.
Safari has a clearShadow routine (sensible!)
All except Safari support get and put image data functions.
Firefox/Mozilla has the handy drawWindow. Kinda useful. Renders web content into a Canvas. However, there's a ton of security restrictions. This could be a useful way of getting images from local applications into the web browser.
Transforms and Coordinates
All except Safari support the very useful "setTransform".
All except Safari support the, also the useful, "transform".
All except Safari support the slightly odd but useful "isPointInPath".
I'd like to see a transformPoint function TBH.
Mozilla support text. It's quite nice in its own way BUT... don't expect miracles. The last time I tested it anti-aliasing doesn't when text is drawn along a path.
See mozText. I must check newer browsers for fillText and strokeText.
The following are untested as I did this before...
Google's "Chrome" arrived on the (so called) scene.
WebKit got embedded in Qt.
Opera 9.62 came out with it's nice new debugger.
If hassled I might let someone have the TERRIBLE source code. This was lashed together in an evening to solve a problem. It is "engineer" code... :-D