Re: Cairo Win32 draws only some simple lines.
Theo Veenker <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <[email protected]> |
On 02/12/2013 10:03 AM, Roman Bednarek wrote: > After some more tries I found out that both functions work ok on > surfaces created with cairo_win32_surface_create_with_dib and > cairo_win32_surface_create_with_ddb, they do not work only on surfaces > created with cairo_win32_surface_create. Therefore I think that cairo is > compiled anf build correctly, just some function (requiring fallbacks?) > do not work on surfaces drawing directly on a window. > I am using buffer anyway, so it is not a problem for me anymore, but it > may be some bug in newer cairo versions. I also recall a problem with using a win32 surface. Could be the same thing I suppose. Haven't had the time to work out a test case. I used a win32 similar buffer for a backbuffer and in an application showing some gradient filled rectangles some of the rectangles didn't get filled. I worked around it by switching to a dib surface (image surface of course worked too). I do see cairo_surface_mark_dirty() and cairo_surface_flush() being used in the code. I don't regularly use a Windows system but once I get to it I'll try to make test thingy that demonstrates the problem. Or maybe you can Roman? Is there a performance penalty using a dib surface instead of a regular win32 surface? Theo -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo