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backend/drm: add libliftoff composition layer

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This will be useful for implementing the output layers API.
This commit is contained in:
Simon Ser 2021-08-10 15:25:02 +02:00
parent f7276aaf2f
commit e45ddda7bc
3 changed files with 16 additions and 9 deletions
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9
backend/drm/drm.c
View file

@ -292,6 +292,14 @@ static bool init_libliftoff(struct wlr_drm_backend *drm) {
return false;
}
crtc->liftoff_composition_layer = liftoff_layer_create(crtc->liftoff);
if (!crtc->liftoff_composition_layer) {
wlr_log(WLR_ERROR, "Failed to create liftoff composition layer");
return false;
}
liftoff_output_set_composition_layer(crtc->liftoff,
crtc->liftoff_composition_layer);
if (crtc->primary) {
crtc->primary->liftoff_layer = liftoff_layer_create(crtc->liftoff);
if (!crtc->primary->liftoff_layer) {
@ -387,6 +395,7 @@ void finish_drm_resources(struct wlr_drm_backend *drm) {
free(crtc->cursor);
}
liftoff_layer_destroy(crtc->liftoff_composition_layer);
liftoff_output_destroy(crtc->liftoff);
}

15
backend/drm/libliftoff.c
View file

@ -49,8 +49,8 @@ static void rollback_blob(struct wlr_drm_backend *drm,
}
}
static bool set_plane_props(struct wlr_drm_plane *plane, int32_t x, int32_t y,
uint64_t zpos) {
static bool set_plane_props(struct wlr_drm_plane *plane,
struct liftoff_layer *layer, int32_t x, int32_t y, uint64_t zpos) {
struct wlr_drm_fb *fb = plane_get_next_fb(plane);
if (fb == NULL) {
wlr_log(WLR_ERROR, "Failed to acquire FB");
@ -60,7 +60,6 @@ static bool set_plane_props(struct wlr_drm_plane *plane, int32_t x, int32_t y,
uint32_t width = fb->wlr_buf->width;
uint32_t height = fb->wlr_buf->height;
struct liftoff_layer *layer = plane->liftoff_layer;
return liftoff_layer_set_property(layer, "zpos", zpos) == 0 &&
liftoff_layer_set_property(layer, "SRC_X", 0) == 0 &&
liftoff_layer_set_property(layer, "SRC_Y", 0) == 0 &&
@ -111,10 +110,13 @@ static bool liftoff_crtc_commit(struct wlr_drm_connector *conn,
add_prop(req, crtc->id, crtc->props.active, state->active);
if (state->active) {
ok = ok && set_plane_props(crtc->primary, 0, 0, 0);
ok = ok &&
set_plane_props(crtc->primary, crtc->primary->liftoff_layer, 0, 0, 0) &&
set_plane_props(crtc->primary, crtc->liftoff_composition_layer, 0, 0, 0);
if (crtc->cursor) {
if (drm_connector_is_cursor_visible(conn)) {
ok = ok && set_plane_props(crtc->cursor,
crtc->cursor->liftoff_layer,
conn->cursor_x, conn->cursor_y, 1);
} else {
ok = ok && disable_plane(crtc->cursor);
@ -139,11 +141,6 @@ static bool liftoff_crtc_commit(struct wlr_drm_connector *conn,
goto out;
}
if (liftoff_layer_needs_composition(crtc->primary->liftoff_layer)) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Failed to scan-out primary plane");
ok = false;
goto out;
}
if (crtc->cursor &&
liftoff_layer_needs_composition(crtc->cursor->liftoff_layer)) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Failed to scan-out cursor plane");

1
include/backend/drm/drm.h
View file

@ -54,6 +54,7 @@ struct wlr_drm_crtc {
union wlr_drm_crtc_props props;
struct liftoff_output *liftoff;
struct liftoff_layer *liftoff_composition_layer;
};
struct wlr_drm_backend {