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wayland: conditionally commit surface on resize

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It was possible for sway to get incorrectly sized borders if you resized
the mpv window in a creative manner (e.g. open a video in a non-floating
mode, set window scale to 2, then float it and witness wrong border
sizes). This is possibly a sway bug (Plasma doesn't have these border
issues at least), but there's a reasonable workaround for this.

The reason for the incorrect border size is because it is possible for
mpv to ignore the width/height from the toplevel listener and set its
own size. This new size can differ from what sway/wlroots believes the
size is which is what causes the sever side decorations to be drawn on
incorrect dimensions.

A simple trick is to just explicitly commit the surface after a resize
is performed. This is only done if mpv is not fullscreened or maximized
since we always obey the compositor widths/heights in those cases.
Sending the commit signals the compositor of the new change in the
surface and thus sway/wlroots updates its internal coordinates
appropriately and borders are no longer broken.
This commit is contained in:
Dudemanguy 2020-08-20 10:24:52 -05:00
parent c9474dc9ed
commit 30dcfbc9cb
3 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
video/out/opengl/context_wayland.c
View File

@ -128,6 +128,8 @@ static void resize(struct ra_ctx *ctx)
if (p->egl_window)
wl_egl_window_resize(p->egl_window, width, height, 0, 0);
if (!wl->vo_opts->fullscreen && !wl->vo_opts->window_maximized)
wl_surface_commit(wl->surface);
wl->vo->dwidth = width;
wl->vo->dheight = height;
}

5
video/out/vo_wlshm.c
View File

@ -194,7 +194,10 @@ static int resize(struct vo *vo)
p->free_buffers = buf->next;
talloc_free(buf);
}
return mp_sws_reinit(p->sws);
int ret = mp_sws_reinit(p->sws);
if (!wl->vo_opts->fullscreen && !wl->vo_opts->window_maximized)
wl_surface_commit(wl->surface);
return ret;
}
static int control(struct vo *vo, uint32_t request, void *data)

5
video/out/vulkan/context_wayland.c
View File

@ -198,7 +198,10 @@ static bool resize(struct ra_ctx *ctx)
const int32_t height = wl->scaling*mp_rect_h(wl->geometry);
wl_surface_set_buffer_scale(wl->surface, wl->scaling);
return ra_vk_ctx_resize(ctx, width, height);
bool ok = ra_vk_ctx_resize(ctx, width, height);
if (!wl->vo_opts->fullscreen && !wl->vo_opts->window_maximized)
wl_surface_commit(wl->surface);
return ok;
}
static bool wayland_vk_reconfig(struct ra_ctx *ctx)