Canvas test: toDataURL parameters (Bug 564388)

diff -r 000000000000 -r 6474c204b198 content/canvas/test/test_toDataURL_alpha.html --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/content/canvas/test/test_toDataURL_alpha.html Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,205 @@ + + + +Canvas test: toDataURL parameters (Bug 564388) + + + + +

+For image types that do not support an alpha channel, the image must be +composited onto a solid black background using the source-over operator, +and the resulting image must be the one used to create the data: URL. +

See: + +http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-canvas-todataurl + +

Mozilla + Bug 650720 +

Output:

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Type:	image/png	image/jpeg	image/bmp (24 bpp)	image/bmp (32 bpp)
rgba(128, 255, 128, 0.5)
rgba(255, 128, 128, 0.75)
rgba(128, 128, 255, 0.25)
rgba(255, 255, 255, 1.0)
rgba(255, 255, 255, 0)
rgba(0, 0, 0, 1.0)
rgba(0, 0, 0, 0)

+ + + +