[gtk] (22 commits) Non-fast-forward update to branch matthiasc/color-profile-rebased

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/color-profile-rebased' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  8748c4b... gdk: Add GDK_DEBUG=srgb
  2a569de... gsk: Upload textures in linear sRGB
  c24ab42... gsk: Apply gamma to frames
  24c476b... gsk: Linearize colors too
  c5c4816... gsk: Linearize gl textures
  51db903... gsk: Use stem darkening for glyphs
  19fc1bf... cairo: Use stem darkening for glyphs
  5293bc7... gsk: Fix caching of textures
  5bbbae6... gsk: Refactor a bit
  45fe33c... gsk: Do texture conversions in shaders
  4d812f1... gsk: Support flipping gl textures
  2ea459b... API: Add a new constructor for GL textures
  235cf42... gsk: Use GL texture information
  f048b18... glarea: Use the new GL texture constructor
  da41e34... media: Use the new GL texture constructor
  f2ada7f... gdk: Introduce GdkColor
  8d0d325... gsk: Add color space in gsk_renderer_render_texture
  f71fe4a... wip: update testsuite for changed compositing
  74611bc... wip: Add a cicp color space implementation
  e6f1373... Add libheif to the build
  feb771b... Add a quick-and-dirty heif loading test
  cc36571... widget-factory: Add an hdr image example

Commits added to the branch:

  a6d4da8... gdk: Add GDK_DEBUG=srgb
  4967973... gsk: Upload textures in linear sRGB
  cbed70c... gsk: Apply gamma to frames
  b5981f8... gsk: Linearize colors too
  8f7691f... gsk: Linearize gl textures
  c64d2b4... gsk: Use stem darkening for glyphs
  8973c9f... cairo: Use stem darkening for glyphs
  13c3aa3... gsk: Fix caching of textures
  4b57441... gsk: Refactor a bit
  f1645f3... gsk: Do texture conversions in shaders
  dbc2dfd... gsk: Support flipping gl textures
  bbbe6ac... API: Add a new constructor for GL textures
  6658651... gsk: Use GL texture information
  92d00d5... glarea: Use the new GL texture constructor
  1495cd8... media: Use the new GL texture constructor
  a24a89d... gdk: Introduce GdkColor
  591c9f3... gsk: Add color space in gsk_renderer_render_texture
  f51a7d7... wip: update testsuite for changed compositing
  5824015... wip: Add a cicp color space implementation
  5271a1a... Add libheif to the build
  b5a88b5... Add a quick-and-dirty heif loading test
  1619ec3... widget-factory: Add an hdr image example