From 1be84ed1d4fbe44387222995a124a4f84ee55210 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ghostscript.com>
Date: Thu, 11 Nov 2004 07:52:33 +0100
Subject: fitz tree resource reference counting

---
 tree/colorspace.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

(limited to 'tree/colorspace.c')

diff --git a/tree/colorspace.c b/tree/colorspace.c
index 70456aae..a8aff2c2 100644
--- a/tree/colorspace.c
+++ b/tree/colorspace.c
@@ -1,13 +1,23 @@
 #include <fitz.h>
 
+fz_colorspace *
+fz_keepcolorspace(fz_colorspace *cs)
+{
+	cs->nrefs ++;
+	return cs;
+}
+
 void
 fz_dropcolorspace(fz_colorspace *cs)
 {
-	if (cs->frozen)
+	if (cs->nrefs < 0)
 		return;
-	if (cs->drop)
-		cs->drop(cs);
-	fz_free(cs);
+	if (--cs->nrefs == 0)
+	{
+		if (cs->drop)
+			cs->drop(cs);
+		fz_free(cs);
+	}
 }
 
 void
-- 
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