[Bug 737505] gltestsrc: implement checkers pattern in GLSL

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=737505
  GStreamer | gst-plugins-bad | git

Matthew Waters <ystreet00> changed:

           What    |Removed                     |Added
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 Attachment #287268|none                        |needs-work
             status|                            |

--- Comment #1 from Matthew Waters <ystreet00 at gmail.com> 2014-09-28 12:28:15 UTC ---
Review of attachment 287268:
 --> (https://bugzilla.gnome.org/review?bug=737505&attachment=287268)

This seems to have blocks that are twice the size of the videotestsrc ones.

Also, this is black/white whereas videotestsrc works on red/green.

gltestsrc pattern=checkers-8 ! glvideomixer ! glimagesink seems to produce
weird artifacts when used together.  Probably because you're not writing to the
alpha channel in the shader.

There is also the checker shader in glvideomixer if you want to use it.

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