Canvas test: toDataURL parameters (Bug 564388)

From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- dom/canvas/test/test_toDataURL_alpha.html | 206 ++++++++++++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 dom/canvas/test/test_toDataURL_alpha.html (limited to 'dom/canvas/test/test_toDataURL_alpha.html') diff --git a/dom/canvas/test/test_toDataURL_alpha.html b/dom/canvas/test/test_toDataURL_alpha.html new file mode 100644 index 0000000000..b79f02f30a --- /dev/null +++ b/dom/canvas/test/test_toDataURL_alpha.html @@ -0,0 +1,206 @@ + + + +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)

+ + + + -- cgit v1.2.3