From 90803eca0fa8d49c54c465580707009aae382d28 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 4 Apr 2007 11:17:23 +0100
Subject: [PATCH] Implement clone_surface for test-fallback-surface.

A few tests were failing due to clip_init_deep_copy() not being able to
clone the target surface. Before propagating the failure, this was being
silently ignored.

Copy the simple implementation from cairo-image-surface.
---
 src/test-fallback-surface.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/test-fallback-surface.c b/src/test-fallback-surface.c
index 628373c6d..0b06dc1fe 100644
--- a/src/test-fallback-surface.c
+++ b/src/test-fallback-surface.c
@@ -169,6 +169,26 @@ _test_fallback_surface_release_dest_image (void			   *abstract_surface,
 				       image_extra);
 }
 
+static cairo_status_t
+_test_fallback_surface_clone_similar (void		  *abstract_surface,
+				      cairo_surface_t     *src,
+				      int                  src_x,
+				      int                  src_y,
+				      int                  width,
+				      int                  height,
+				      cairo_surface_t    **clone_out)
+{
+    test_fallback_surface_t *surface = abstract_surface;
+
+    if (src->backend == surface->base.backend) {
+	*clone_out = cairo_surface_reference (src);
+
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    return CAIRO_INT_STATUS_UNSUPPORTED;
+}
+
 static cairo_int_status_t
 _test_fallback_surface_get_extents (void		            *abstract_surface,
 				    cairo_rectangle_int16_t *rectangle)
@@ -186,7 +206,7 @@ const cairo_surface_backend_t test_fallback_surface_backend = {
     _test_fallback_surface_release_source_image,
     _test_fallback_surface_acquire_dest_image,
     _test_fallback_surface_release_dest_image,
-    NULL, /* clone_similar */
+    _test_fallback_surface_clone_similar,
     NULL, /* composite */
     NULL, /* fill_rectangles */
     NULL, /* composite_trapezoids */