Date: prev next · Thread: first prev next last
2012 Archives by date, by thread · List index


Hi Ivan,

On Wed, 2012-08-01 at 22:18 +0400, Ivan Timofeev wrote:
On 01.08.2012 20:59, Michael Meeks wrote:
Well, now I have read about alpha compositing and cairo... :)

        Oh ! nice :-)

We use CAIRO_FORMAT_ARGB32 and the cairo manual says[1]:

  Pre-multiplied alpha is used. (That is, 50% transparent red is 
0x80800000, not 0x80ff0000.)

        So you're right, and I'm wrong then :-) good.

so cairo_data elements already multiplied by alpha.

        Lets get your patch to fix this in the - hopefully that makes
everything prettier.

        Thanks !

                Michael.

-- 
michael.meeks@suse.com  <><, Pseudo Engineer, itinerant idiot


Context


Privacy Policy | Impressum (Legal Info) | Copyright information: Unless otherwise specified, all text and images on this website are licensed under the Creative Commons Attribution-Share Alike 3.0 License. This does not include the source code of LibreOffice, which is licensed under the Mozilla Public License (MPLv2). "LibreOffice" and "The Document Foundation" are registered trademarks of their corresponding registered owners or are in actual use as trademarks in one or more countries. Their respective logos and icons are also subject to international copyright laws. Use thereof is explained in our trademark policy.