From a2d5f59e2158651ac85dcc8a2b8f49cd2861044e Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 11 Aug 2009 17:01:07 +0100
Subject: [PATCH] [debug] Path printer

---
 src/cairo-debug.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++
 src/cairoint.h    |  3 +++
 2 files changed, 70 insertions(+)

diff --git a/src/cairo-debug.c b/src/cairo-debug.c
index 4409e6ebf..9160728e0 100644
--- a/src/cairo-debug.c
+++ b/src/cairo-debug.c
@@ -165,3 +165,70 @@ _cairo_image_surface_write_to_ppm (cairo_image_surface_t *isurf, const char *fn)
     fprintf (stderr, "Wrote %s\n", fn);
 }
 #endif
+
+static cairo_status_t
+_print_move_to (void *closure,
+		const cairo_point_t *point)
+{
+    fprintf (closure,
+	     " %f %f m",
+	     _cairo_fixed_to_double (point->x),
+	     _cairo_fixed_to_double (point->y));
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_print_line_to (void *closure,
+		const cairo_point_t *point)
+{
+    fprintf (closure,
+	     " %f %f l",
+	     _cairo_fixed_to_double (point->x),
+	     _cairo_fixed_to_double (point->y));
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_print_curve_to (void *closure,
+		 const cairo_point_t *p1,
+		 const cairo_point_t *p2,
+		 const cairo_point_t *p3)
+{
+    fprintf (closure,
+	     " %f %f %f %f %f %f c",
+	     _cairo_fixed_to_double (p1->x),
+	     _cairo_fixed_to_double (p1->y),
+	     _cairo_fixed_to_double (p2->x),
+	     _cairo_fixed_to_double (p2->y),
+	     _cairo_fixed_to_double (p3->x),
+	     _cairo_fixed_to_double (p3->y));
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_print_close (void *closure)
+{
+    fprintf (closure, " h");
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+void
+_cairo_debug_print_path (FILE *stream, cairo_path_fixed_t *path)
+{
+    cairo_status_t status;
+
+    status = _cairo_path_fixed_interpret (path,
+					  CAIRO_DIRECTION_FORWARD,
+					  _print_move_to,
+					  _print_line_to,
+					  _print_curve_to,
+					  _print_close,
+					  stream);
+    assert (status == CAIRO_STATUS_SUCCESS);
+
+    printf ("\n");
+}
diff --git a/src/cairoint.h b/src/cairoint.h
index 5ac8b6a23..c4b22f247 100644
--- a/src/cairoint.h
+++ b/src/cairoint.h
@@ -2768,4 +2768,7 @@ _cairo_debug_check_image_surface_is_defined (const cairo_surface_t *surface);
 
 #endif
 
+void
+_cairo_debug_print_path (FILE *stream, cairo_path_fixed_t *path);
+
 #endif