Open dyoo opened 11 years ago
In the runtime, color-list->bitmap and image->color-list rely on canvas.getImageData and putImageData, neither of which are supported by the ExCanvas library. I explored adding this back in 2010, but it would require a serverside component to do the image<->pixel bridging, and send the result back to ExCanvas. It's simply not worth it, and even if this feature appeared tomorrow it would be unusably slow to work through a list of pixels in the current compiler on IE8. Even on Chrome, which DOES support this and whose js engine 100x faster, this is unusable.
WONTFIX, close bug.
something's breaking on ie8 for the following program
`(define p (crop 330 180 80 100 (bitmap/url "http://www.bootstrapworld.org/images/girls.jpg")))
(define (ghost p) (color-list->bitmap (map (lambda (c) (make-color (color-red c) (color-green c) (color-blue c) 100)) (image->color-list p)) (image-width p) (image-height p)))
(scale 2 (overlay (ghost p) (bitmap/url "http://racket-lang.org/logo.png")))`