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wayland: add wp-fractional-scale-v1 support #10943

Merged
merged 2 commits into from
Jan 24, 2023
Merged

wayland: add wp-fractional-scale-v1 support #10943

merged 2 commits into from
Jan 24, 2023

Commits on Jan 23, 2023

  1. wayland: rewrite geometry and scaling handling 

    This is in preparation for fractional scaling support. Basically, redo
all the coordinates in wayland so that wl->geometry is equal exactly to
what is being put out to the screen (no extra wl->scaling multiplication
required). The wl->vdparams variable is also eliminated for simplicity.
This changes mpv's behavior on wayland with hidpi scaling but that will
be addressed in more detail with the next commit.
    @Dudemanguy
    Dudemanguy committed Jan 23, 2023
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  2. wayland: add wp-fractional-scale-v1 support 

    This protocol is pretty important since it finally lets us solve the
longstanding issue of fractional scaling in wayland (no more mpv doing
rendering over the target resolution and then being scaled down). This
protocol also can completely replace the buffer_scale usage that we are
currently using for integer scaling so hopefully this can be removed
sometime in the future. Note that vo_dmabuf_wayland is omitted from the
fractional scale handling because we want the compositor to handle all
the scaling for that VO.

Fixes mpv-player#9443.
    @Dudemanguy
    Dudemanguy committed Jan 23, 2023
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