[gtk: 5/5] Merge branch 'snazzy-demo' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

commit 97ffd94d208f7be3bb318e289eb0853c6315ecda
Merge: 2dcf750198 d6648871b1
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 30 15:00:58 2020 +0000

    Merge branch 'snazzy-demo' into 'master'
    
    gtk-demo: Make gltransitions demo a bit snazzier
    
    See merge request GNOME/gtk!2644

 demos/gtk-demo/background.glsl    | 26 ++++++++++++++
 demos/gtk-demo/demo.gresource.xml |  5 +--
 demos/gtk-demo/fire.glsl          | 72 ---------------------------------------
 demos/gtk-demo/gltransition.c     | 46 ++++++++++++++++++-------
 demos/gtk-demo/gtkshaderbin.c     | 27 +++++++++++++--
 demos/gtk-demo/gtkshaderbin.h     |  3 +-
 demos/gtk-demo/gtkshaderstack.c   |  9 +++++
 demos/gtk-demo/gtkshaderstack.h   |  4 ++-
 demos/gtk-demo/ripple.glsl        | 43 +++++++++++++++++++++++
 gsk/gl/gskgldriver.c              |  7 ++--
 gsk/gl/gskgldriverprivate.h       |  2 ++
 gsk/gl/gskglrenderer.c            |  5 ++-
 12 files changed, 155 insertions(+), 94 deletions(-)
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