backend/drm: remove mode argument to crtc_pageflip

Add a new wlr_drm_crtc.pending bitfield which keeps track of pending
output changes. More fields will be added in the future (e.g. active,
gamma).

2 files changed, 9 insertions, 2 deletions

diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h
index 11f6732a..e8fc452a 100644
--- a/include/backend/drm/drm.h
+++ b/include/backend/drm/drm.h
@@ -42,8 +42,15 @@ struct wlr_drm_plane {
 	union wlr_drm_plane_props props;
 };
 
+enum wlr_drm_crtc_field {
+	WLR_DRM_CRTC_MODE = 1 << 0,
+};
+
 struct wlr_drm_crtc {
 	uint32_t id;
+	uint32_t pending; // bitfield of enum wlr_drm_crtc_field
+
+	drmModeModeInfo mode;
 
 	// Atomic modesetting only
 	uint32_t mode_id;
diff --git a/include/backend/drm/iface.h b/include/backend/drm/iface.h
index acaf4730..6e074249 100644
--- a/include/backend/drm/iface.h
+++ b/include/backend/drm/iface.h
@@ -16,9 +16,9 @@ struct wlr_drm_interface {
 	// Enable or disable DPMS for connector
 	bool (*conn_enable)(struct wlr_drm_backend *drm,
 		struct wlr_drm_connector *conn, bool enable);
-	// Pageflip on crtc. If mode is non-NULL perform a full modeset using it.
+	// Pageflip on crtc.
 	bool (*crtc_pageflip)(struct wlr_drm_backend *drm,
-		struct wlr_drm_connector *conn, drmModeModeInfo *mode);
+		struct wlr_drm_connector *conn);
 	// Enable the cursor buffer on crtc. Set bo to NULL to disable
 	bool (*crtc_set_cursor)(struct wlr_drm_backend *drm,
 		struct wlr_drm_crtc *crtc, struct gbm_bo *bo);