Re: Running cairo-test-suite with -as / cairo_surface_set_device_scale() and the test suite / image scaling madness
Bill Spitzak <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <[email protected]> |
Use the mouse to scale the picture. Any click in the lower-right quadrant will cause scale + rotate. Clicks in the other 3 quadrants cause translation. You can also hit a lot of letter keys to change the filtering algorithm. But basically we are testing 'd' (default) and 'b' (best). On 07/08/2014 06:25 PM, Bryce W. Harrington wrote: > On Tue, Jun 10, 2014 at 01:46:08PM -0700, Bill Spitzak wrote: >> Attached is my test program for the filtering. This uses the xlib >> cairo backend (and thus requires patching cairo so that the fallback >> image is used for xlib). >> >> To build, extract the tar file, cd to the cairot directory, and type >> make. The test program is ./image. >> >> Edit the source code to change the size of the checkerboard pattern. >> Most tests were done with 1-pixel stripes, by setting CHECKER to 1 >> and YCHECKER to 1000. > > Hi Bill, > > Thanks for providing this test case. I've built and run it, but am not > sure what I'm looking for... I see a properly drawn checkerboard with > the defaults, and a set of thin lines with the modified settings. I'm > assuming I should be seeing some artifacts or corruption? > > Bryce > -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo