use double for cursor coordinates

examples/compositor.c

@@ -366,8 +366,8 @@ static void handle_cursor_motion(struct wl_listener *listener, void *data) {
 	if (surface) {
 		struct example_xdg_surface_v6 *esurface = surface->data;
 
-		int32_t sx = sample->cursor->x - esurface->position.lx;
-		int32_t sy = sample->cursor->y - esurface->position.ly;
+		double sx = sample->cursor->x - esurface->position.lx;
+		double sy = sample->cursor->y - esurface->position.ly;
 
 		// TODO z-order
 		wlr_seat_pointer_enter(sample->wl_seat, surface->surface,

include/wlr/types/wlr_cursor.h

@@ -11,7 +11,7 @@ struct wlr_cursor_state;
 
 struct wlr_cursor {
 	struct wlr_cursor_state *state;
-	int x, y;
+	double x, y;
 
 	struct {
 		struct wl_signal motion;

include/wlr/types/wlr_seat.h

@@ -88,7 +88,7 @@ bool wlr_seat_pointer_surface_has_focus(struct wlr_seat *wlr_seat,
  * surface that was entered. Coordinates for the enter event are surface-local.
  */
 void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
-		struct wlr_surface *surface, int32_t sx, int32_t sy);
+		struct wlr_surface *surface, double sx, double sy);
 
 /**
  * Clear the focused surface for the pointer and leave all entered surfaces.
@@ -100,7 +100,7 @@ void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat);
  * motion event are surface-local.
  */
 void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
-		int32_t sx, int32_t sy);
+		double sx, double sy);
 
 /**
  * Send a button event to the surface with pointer focus. Coordinates for the

types/wlr_seat.c

@@ -261,7 +261,7 @@ static void handle_pointer_focus_resource_destroyed(
 }
 
 void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
-		struct wlr_surface *surface, int32_t sx, int32_t sy) {
+		struct wlr_surface *surface, double sx, double sy) {
 	assert(wlr_seat);
 
 	if (wlr_seat->pointer_state.focused_surface == surface) {
@@ -293,7 +293,7 @@ void wlr_seat_pointer_enter(struct wlr_seat *wlr_seat,
 	if (handle) {
 		uint32_t serial = wl_display_next_serial(wlr_seat->display);
 		wl_pointer_send_enter(handle->pointer, serial, surface->resource,
-			wl_fixed_from_int(sx), wl_fixed_from_int(sy));
+			wl_fixed_from_double(sx), wl_fixed_from_double(sy));
 		wl_pointer_send_frame(handle->pointer);
 	}
 
@@ -326,14 +326,14 @@ void wlr_seat_pointer_clear_focus(struct wlr_seat *wlr_seat) {
 }
 
 void wlr_seat_pointer_send_motion(struct wlr_seat *wlr_seat, uint32_t time,
-		int32_t sx, int32_t sy) {
+		double sx, double sy) {
 	if (!wlr_seat->pointer_state.focused_handle) {
 		// nobody to send the event to
 		return;
 	}
 
 	wl_pointer_send_motion(wlr_seat->pointer_state.focused_handle->pointer,
-		time, wl_fixed_from_int(sx), wl_fixed_from_int(sy));
+		time, wl_fixed_from_double(sx), wl_fixed_from_double(sy));
 	wl_pointer_send_frame(wlr_seat->pointer_state.focused_handle->pointer);
 }