D18377: Update blur to be more natural

fredrik added a comment.


  In D18377#400445 <https://phabricator.kde.org/D18377#400445>, @zzag wrote:
  
  > May it cause issues on GLES?
  
  
  There are a number of issues with GLES unfortunately:
  
  - You have to enable sRGB rendering by specifying { EGL_GL_COLORSPACE_KHR, EGL_GL_COLORSPACE_SRGB_KHR } in the eglCreateWindowSurface() attributes.
  - GL_FRAMEBUFFER_SRGB is enabled by default, and can only be toggled when GL_EXT_sRGB_write_control is supported.
  - On GLES2 you also need GL_EXT_sRGB.
  
  Given all this, it's probably best to limit this to desktop GL for now.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D18377

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