image/test/reftest/colordepth.html@6474c204b198
image/test/reftest/colordepth.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 <script>
2 /*
3 * Almost all of the image decoding reftests require the display to be in
4 * 24-bit color mode, or else the rendered images will have subtle color
5 * variations and will fail.
6 * The Windows test boxes used to have a tendency to flip to 16-bit color mode,
7 * so this test will explicitly check the color depth to make it more obvious
8 * when the requirement is not met. (See bug 414720.)
9 * 24-bit is only a minimum, allow higher values too. (See bug 458847.)
10 */
12 var colorDepth = window.screen.colorDepth;
14 if (colorDepth < 24)
15 document.write("ERROR: color depth is only " + colorDepth + ".");
16 </script>
