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backend/drm: introduce wlr_drm_fb

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This is a type which manages gbm_surfaces and imported dmabufs in the
same place, and makes the lifetime management between the two shared. It
should lead to easier to understand code, and fewer special cases.

This also contains a fair bit of refactoring to start using this new
type.

Co-authored-by: Simon Ser <contact@emersion.fr>
This commit is contained in:
Scott Anderson 2020-02-08 19:02:31 +13:00 • committed by Simon Ser
parent fa5d709fc3
commit 8da9d9679e
8 changed files with 397 additions and 285 deletions
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9
backend/drm/backend.c
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@ -105,8 +105,13 @@ static void session_signal(struct wl_listener *listener, void *data) {
}
struct wlr_drm_plane *plane = conn->crtc->cursor;
drm->iface->crtc_set_cursor(drm, conn->crtc,
(plane && plane->cursor_enabled) ? plane->surf.back : NULL);
struct gbm_bo *bo = NULL;
if (plane->cursor_enabled) {
bo = drm_fb_acquire(&plane->current_fb, drm,
&plane->mgpu_surf);
}
drm->iface->crtc_set_cursor(drm, conn->crtc, bo);
drm->iface->crtc_move_cursor(drm, conn->crtc, conn->cursor_x,
conn->cursor_y);