From 5a72aac5982015a2b237afeb13164e0c5f5185ed Mon Sep 17 00:00:00 2001
From: Vladimir Vukicevic <vladimir@pobox.com>
Date: Fri, 23 Feb 2007 14:24:04 -0800
Subject: [PATCH] [core] put back REF_COUNT_INVALID to be -1, fix finish

Previous commit broke cairo_surface_finish, since it was checking for
ref_count == CAIRO_REF_COUNT_INVALID and bailing.  But, that condition
was reached from destroy, so finish was bailing out early.
---
 src/cairo-font.c        | 3 +++
 src/cairo-pattern.c     | 3 +++
 src/cairo-scaled-font.c | 3 +++
 src/cairo-surface.c     | 3 +++
 src/cairo.c             | 3 +++
 src/cairoint.h          | 2 +-
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/cairo-font.c b/src/cairo-font.c
index 1b62aed0d..7fefea763 100644
--- a/src/cairo-font.c
+++ b/src/cairo-font.c
@@ -178,6 +178,9 @@ cairo_font_face_get_type (cairo_font_face_t *font_face)
 unsigned int
 cairo_font_face_get_reference_count (cairo_font_face_t *font_face)
 {
+    if (font_face->ref_count == CAIRO_REF_COUNT_INVALID)
+	return 0;
+
     return font_face->ref_count;
 }
 
diff --git a/src/cairo-pattern.c b/src/cairo-pattern.c
index 5060eff85..0c428ba9d 100644
--- a/src/cairo-pattern.c
+++ b/src/cairo-pattern.c
@@ -592,6 +592,9 @@ slim_hidden_def (cairo_pattern_destroy);
 unsigned int
 cairo_pattern_get_reference_count (cairo_pattern_t *pattern)
 {
+    if (pattern->ref_count == CAIRO_REF_COUNT_INVALID)
+	return 0;
+
     return pattern->ref_count;
 }
 
diff --git a/src/cairo-scaled-font.c b/src/cairo-scaled-font.c
index 46ba5717b..4020acf3e 100755
--- a/src/cairo-scaled-font.c
+++ b/src/cairo-scaled-font.c
@@ -638,6 +638,9 @@ slim_hidden_def (cairo_scaled_font_destroy);
 unsigned int
 cairo_scaled_font_get_reference_count (cairo_scaled_font_t *scaled_font)
 {
+    if (scaled_font->ref_count == CAIRO_REF_COUNT_INVALID)
+	return 0;
+
     return scaled_font->ref_count;
 }
 
diff --git a/src/cairo-surface.c b/src/cairo-surface.c
index e640fac12..12240811d 100644
--- a/src/cairo-surface.c
+++ b/src/cairo-surface.c
@@ -405,6 +405,9 @@ slim_hidden_def(cairo_surface_destroy);
 unsigned int
 cairo_surface_get_reference_count (cairo_surface_t *surface)
 {
+    if (surface->ref_count == CAIRO_REF_COUNT_INVALID)
+	return 0;
+
     return surface->ref_count;
 }
 
diff --git a/src/cairo.c b/src/cairo.c
index 5eda36efb..36fd07bb1 100644
--- a/src/cairo.c
+++ b/src/cairo.c
@@ -345,6 +345,9 @@ cairo_set_user_data (cairo_t			 *cr,
 unsigned int
 cairo_get_reference_count (cairo_t *cr)
 {
+    if (cr->ref_count == CAIRO_REF_COUNT_INVALID)
+	return 0;
+
     return cr->ref_count;
 }
 
diff --git a/src/cairoint.h b/src/cairoint.h
index 65b0123a8..eff83444a 100755
--- a/src/cairoint.h
+++ b/src/cairoint.h
@@ -241,7 +241,7 @@ do {					\
     assert (NOT_REACHED);		\
 } while (0)
 
-#define CAIRO_REF_COUNT_INVALID (0)
+#define CAIRO_REF_COUNT_INVALID ((unsigned int) -1)
 
 #include "cairo-wideint-private.h"