From e7a8ea84c36ea8565626da35aed4362805b4e802 Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Wed, 27 May 2020 18:16:03 +0200 Subject: [PATCH] backend/drm: don't set cursor if off-screen Closes: https://github.com/swaywm/wlroots/issues/2216 --- backend/drm/atomic.c | 2 +- backend/drm/drm.c | 11 +++++++++++ backend/drm/legacy.c | 2 +- include/backend/drm/drm.h | 1 + 4 files changed, 14 insertions(+), 2 deletions(-) diff --git a/backend/drm/atomic.c b/backend/drm/atomic.c index 22d8e69b..be6cfa3e 100644 --- a/backend/drm/atomic.c +++ b/backend/drm/atomic.c @@ -219,7 +219,7 @@ static bool atomic_crtc_commit(struct wlr_drm_backend *drm, } set_plane_props(&atom, drm, crtc->primary, crtc->id, 0, 0); if (crtc->cursor) { - if (crtc->cursor->cursor_enabled) { + if (drm_connector_is_cursor_visible(conn)) { set_plane_props(&atom, drm, crtc->cursor, crtc->id, conn->cursor_x, conn->cursor_y); } else { diff --git a/backend/drm/drm.c b/backend/drm/drm.c index b13d048d..8dc83cd3 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -999,6 +999,17 @@ static bool drm_connector_move_cursor(struct wlr_output *output, return true; } +bool drm_connector_is_cursor_visible(struct wlr_drm_connector *conn) { + assert(conn->crtc != NULL && conn->crtc->cursor != NULL); + struct wlr_drm_plane *plane = conn->crtc->cursor; + + return plane->cursor_enabled && + conn->cursor_x < conn->output.width && + conn->cursor_y < conn->output.height && + conn->cursor_x + (int)plane->surf.width >= 0 && + conn->cursor_y + (int)plane->surf.height >= 0; +} + static void drm_connector_destroy(struct wlr_output *output) { struct wlr_drm_connector *conn = get_drm_connector_from_output(output); drm_connector_cleanup(conn); diff --git a/backend/drm/legacy.c b/backend/drm/legacy.c index 61309475..6acb87d4 100644 --- a/backend/drm/legacy.c +++ b/backend/drm/legacy.c @@ -62,7 +62,7 @@ static bool legacy_crtc_commit(struct wlr_drm_backend *drm, } } - if (cursor != NULL && cursor->cursor_enabled) { + if (cursor != NULL && drm_connector_is_cursor_visible(conn)) { struct wlr_drm_fb *cursor_fb = plane_get_next_fb(cursor); struct gbm_bo *cursor_bo = drm_fb_acquire(cursor_fb, drm, &cursor->mgpu_surf); diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h index 7755da59..83fb6293 100644 --- a/include/backend/drm/drm.h +++ b/include/backend/drm/drm.h @@ -152,6 +152,7 @@ void scan_drm_connectors(struct wlr_drm_backend *state); int handle_drm_event(int fd, uint32_t mask, void *data); bool drm_connector_set_mode(struct wlr_drm_connector *conn, struct wlr_output_mode *mode); +bool drm_connector_is_cursor_visible(struct wlr_drm_connector *conn); size_t drm_crtc_get_gamma_lut_size(struct wlr_drm_backend *drm, struct wlr_drm_crtc *crtc);