xcursor: sync with libwayland

xcursor.c was copied over from libwayland-cursor. A lot of
cosmetic imporvements have been merged upstream. Copy-paste the
new version.

include/xcursor/xcursor.h

@@ -28,37 +28,31 @@
 
 #include <stdint.h>
 
-typedef int XcursorBool;
-typedef uint32_t XcursorUInt;
-
-typedef XcursorUInt	XcursorDim;
-typedef XcursorUInt	XcursorPixel;
-
-typedef struct _XcursorImage {
-    XcursorUInt	    version;	/* version of the image data */
-    XcursorDim	    size;	/* nominal size for matching */
-    XcursorDim	    width;	/* actual width */
-    XcursorDim	    height;	/* actual height */
-    XcursorDim	    xhot;	/* hot spot x (must be inside image) */
-    XcursorDim	    yhot;	/* hot spot y (must be inside image) */
-    XcursorUInt	    delay;	/* animation delay to next frame (ms) */
-    XcursorPixel    *pixels;	/* pointer to pixels */
-} XcursorImage;
+struct xcursor_image {
+	uint32_t version; /* version of the image data */
+	uint32_t size; /* nominal size for matching */
+	uint32_t width; /* actual width */
+	uint32_t height; /* actual height */
+	uint32_t xhot; /* hot spot x (must be inside image) */
+	uint32_t yhot; /* hot spot y (must be inside image) */
+	uint32_t delay; /* animation delay to next frame (ms) */
+	uint32_t *pixels; /* pointer to pixels */
+};
 
 /*
  * Other data structures exposed by the library API
  */
-typedef struct _XcursorImages {
-    int		    nimage;	/* number of images */
-    XcursorImage    **images;	/* array of XcursorImage pointers */
-    char	    *name;	/* name used to load images */
-} XcursorImages;
+struct xcursor_images {
+	int nimage; /* number of images */
+	struct xcursor_image **images; /* array of XcursorImage pointers */
+	char *name; /* name used to load images */
+};
 
 void
-XcursorImagesDestroy (XcursorImages *images);
+xcursor_images_destroy(struct xcursor_images *images);
 
 void
 xcursor_load_theme(const char *theme, int size,
-		    void (*load_callback)(XcursorImages *, void *),
-		    void *user_data);
+		   void (*load_callback)(struct xcursor_images *, void *),
+		   void *user_data);
 #endif

xcursor/wlr_xcursor.c

@@ -117,7 +117,7 @@ static void load_default_theme(struct wlr_xcursor_theme *theme) {
 }
 
 static struct wlr_xcursor *xcursor_create_from_xcursor_images(
-		XcursorImages *images, struct wlr_xcursor_theme *theme) {
+		struct xcursor_images *images, struct wlr_xcursor_theme *theme) {
 	struct wlr_xcursor *cursor = calloc(1, sizeof(*cursor));
 	if (!cursor) {
 		return NULL;
@@ -170,11 +170,11 @@ static struct wlr_xcursor *xcursor_create_from_xcursor_images(
 	return cursor;
 }
 
-static void load_callback(XcursorImages *images, void *data) {
+static void load_callback(struct xcursor_images *images, void *data) {
 	struct wlr_xcursor_theme *theme = data;
 
 	if (wlr_xcursor_theme_get_cursor(theme, images->name)) {
-		XcursorImagesDestroy(images);
+		xcursor_images_destroy(images);
 		return;
 	}
 
@@ -192,7 +192,7 @@ static void load_callback(XcursorImages *images, void *data) {
 		}
 	}
 
-	XcursorImagesDestroy(images);
+	xcursor_images_destroy(images);
 }
 
 struct wlr_xcursor_theme *wlr_xcursor_theme_load(const char *name, int size) {