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cursor: avoid uninitialized wlr_box fields

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This commit is contained in:
Kirill Primak 2022-08-30 19:18:42 +03:00
parent 138d21464d
commit 4462f5dcb3
1 changed files with 14 additions and 10 deletions
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24
types/wlr_cursor.c
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@ -236,19 +236,22 @@ static void cursor_warp_unchecked(struct wlr_cursor *cur,
* Absolute movement for touch and pen devices will be relative to this box and * Absolute movement for touch and pen devices will be relative to this box and
* pointer movement will be constrained to this box. * pointer movement will be constrained to this box.
* *
* If none of these are set, empties the box and absolute movement should be * If none of these are set, the box is empty and absolute movement should be
* relative to the extents of the layout. * relative to the extents of the layout.
*/ */
static void get_mapping(struct wlr_cursor *cur, static void get_mapping(struct wlr_cursor *cur,
struct wlr_input_device *dev, struct wlr_box *box) { struct wlr_input_device *dev, struct wlr_box *box) {
assert(cur->state->layout); assert(cur->state->layout);
struct wlr_cursor_device *c_device = get_cursor_device(cur, dev);
memset(box, 0, sizeof(*box));
struct wlr_cursor_device *c_device = get_cursor_device(cur, dev);
if (c_device) { if (c_device) {
if (!wlr_box_empty(&c_device->mapped_box)) { if (!wlr_box_empty(&c_device->mapped_box)) {
*box = c_device->mapped_box; *box = c_device->mapped_box;
return; return;
} else if (c_device->mapped_output) { }
if (c_device->mapped_output) {
wlr_output_layout_get_box(cur->state->layout, wlr_output_layout_get_box(cur->state->layout,
c_device->mapped_output, box); c_device->mapped_output, box);
return; return;
@ -257,11 +260,12 @@ static void get_mapping(struct wlr_cursor *cur,
if (!wlr_box_empty(&cur->state->mapped_box)) { if (!wlr_box_empty(&cur->state->mapped_box)) {
*box = cur->state->mapped_box; *box = cur->state->mapped_box;
} else if (cur->state->mapped_output) { return;
}
if (cur->state->mapped_output) {
wlr_output_layout_get_box(cur->state->layout, wlr_output_layout_get_box(cur->state->layout,
cur->state->mapped_output, box); cur->state->mapped_output, box);
} else { return;
box->width = box->height = 0;
} }
} }
@ -868,19 +872,21 @@ void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
void wlr_cursor_map_to_region(struct wlr_cursor *cur, void wlr_cursor_map_to_region(struct wlr_cursor *cur,
const struct wlr_box *box) { const struct wlr_box *box) {
memset(&cur->state->mapped_box, 0, sizeof(cur->state->mapped_box));
if (box) { if (box) {
if (wlr_box_empty(box)) { if (wlr_box_empty(box)) {
wlr_log(WLR_ERROR, "cannot map cursor to an empty region"); wlr_log(WLR_ERROR, "cannot map cursor to an empty region");
return; return;
} }
cur->state->mapped_box = *box; cur->state->mapped_box = *box;
} else {
cur->state->mapped_box.width = cur->state->mapped_box.height = 0;
} }
} }
void wlr_cursor_map_input_to_region(struct wlr_cursor *cur, void wlr_cursor_map_input_to_region(struct wlr_cursor *cur,
struct wlr_input_device *dev, const struct wlr_box *box) { struct wlr_input_device *dev, const struct wlr_box *box) {
memset(&cur->state->mapped_box, 0, sizeof(cur->state->mapped_box));
struct wlr_cursor_device *c_device = get_cursor_device(cur, dev); struct wlr_cursor_device *c_device = get_cursor_device(cur, dev);
if (!c_device) { if (!c_device) {
wlr_log(WLR_ERROR, "Cannot map device \"%s\" to geometry (not found in" wlr_log(WLR_ERROR, "Cannot map device \"%s\" to geometry (not found in"
@ -896,7 +902,5 @@ void wlr_cursor_map_input_to_region(struct wlr_cursor *cur,
return; return;
} }
c_device->mapped_box = *box; c_device->mapped_box = *box;
} else {
c_device->mapped_box.width = c_device->mapped_box.height = 0;
} }
} }