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backend/drm: extract post-commit logic into functions

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It's more readable, and we'll soon call this from a loop for
multi-connector commits.
This commit is contained in:
Simon Ser 2024-02-14 14:00:30 +01:00 committed by Kenny Levinsen
parent f8f2dde1f0
commit 3d72da9ed7
1 changed files with 41 additions and 29 deletions
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70
backend/drm/drm.c
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@ -449,6 +449,45 @@ static struct wlr_drm_page_flip *drm_page_flip_create(struct wlr_drm_connector *
return page_flip;
}
static void drm_connector_apply_commit(const struct wlr_drm_connector_state *state,
struct wlr_drm_page_flip *page_flip) {
struct wlr_drm_connector *conn = state->connector;
struct wlr_drm_crtc *crtc = conn->crtc;
drm_fb_copy(&crtc->primary->queued_fb, state->primary_fb);
if (crtc->cursor != NULL) {
drm_fb_copy(&crtc->cursor->queued_fb, state->cursor_fb);
}
drm_fb_clear(&conn->cursor_pending_fb);
struct wlr_drm_layer *layer;
wl_list_for_each(layer, &crtc->layers, link) {
drm_fb_move(&layer->queued_fb, &layer->pending_fb);
}
drm_connector_set_pending_page_flip(conn, page_flip);
if (state->base->committed & WLR_OUTPUT_STATE_MODE) {
conn->refresh = calculate_refresh_rate(&state->mode);
}
}
static void drm_connector_rollback_commit(const struct wlr_drm_connector_state *state) {
struct wlr_drm_crtc *crtc = state->connector->crtc;
// The set_cursor() hook is a bit special: it's not really synchronized
// to commit() or test(). Once set_cursor() returns true, the new
// cursor is effectively committed. So don't roll it back here, or we
// risk ending up in a state where we don't have a cursor FB but
// wlr_drm_connector.cursor_enabled is true.
// TODO: fix our output interface to avoid this issue.
struct wlr_drm_layer *layer;
wl_list_for_each(layer, &crtc->layers, link) {
drm_fb_clear(&layer->pending_fb);
}
}
static bool drm_crtc_commit(struct wlr_drm_connector *conn,
const struct wlr_drm_connector_state *state,
uint32_t flags, bool test_only) {
@ -464,38 +503,11 @@ static bool drm_crtc_commit(struct wlr_drm_connector *conn,
}
struct wlr_drm_backend *drm = conn->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
bool ok = drm->iface->crtc_commit(conn, state, page_flip, flags, test_only);
if (ok && !test_only) {
drm_fb_copy(&crtc->primary->queued_fb, state->primary_fb);
if (crtc->cursor != NULL) {
drm_fb_copy(&crtc->cursor->queued_fb, state->cursor_fb);
}
drm_fb_clear(&conn->cursor_pending_fb);
struct wlr_drm_layer *layer;
wl_list_for_each(layer, &crtc->layers, link) {
drm_fb_move(&layer->queued_fb, &layer->pending_fb);
}
drm_connector_set_pending_page_flip(conn, page_flip);
if (state->base->committed & WLR_OUTPUT_STATE_MODE) {
conn->refresh = calculate_refresh_rate(&state->mode);
}
drm_connector_apply_commit(state, page_flip);
} else {
// The set_cursor() hook is a bit special: it's not really synchronized
// to commit() or test(). Once set_cursor() returns true, the new
// cursor is effectively committed. So don't roll it back here, or we
// risk ending up in a state where we don't have a cursor FB but
// wlr_drm_connector.cursor_enabled is true.
// TODO: fix our output interface to avoid this issue.
struct wlr_drm_layer *layer;
wl_list_for_each(layer, &crtc->layers, link) {
drm_fb_clear(&layer->pending_fb);
}
drm_connector_rollback_commit(state);
drm_page_flip_destroy(page_flip);
}
return ok;