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Switch to using GdkGLTextureBuilder

Bilal Elmoussaoui requested to merge bilelmoussaoui/libmks:bilelmoussaoui/gdk-gl-texture-builder into main

This PR switches from using tiled rendering as the GdkGLTextureBuilder should allow us to mark damaged areas and redraw only the changed regions. It also stops creating a new MksDmaBufPaintable whenever ScanoutDMABUF is called and instead create the paintable once and only call mks_dmabuf_paintable_import once we receive the following UpdateDMABUF call containing the necessary damage area coordinates.

Still TODO:

  • Clean up the latest commit & associated documentation
  • Sometime we get a full re-draw and that is maybe caused by some issue in the gdk_texture_diff code?
  • Needed APIs to land in gtk main branch gtk!5880 (merged)

Depends on !16 (merged) for the CI to pass

Edited by Bilal Elmoussaoui

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