From: Benjamin Otte <otte@redhat.com>
Date: Tue, 24 Aug 2010 10:17:18 +0000 (+0200)
Subject: region: Add a new test region-translate
X-Git-Tag: 1.0_branch~514
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4d8fb1bc01654ba0d331e6aea8127920e8cdf0b8;p=profile%2Fivi%2Fpixman.git

region: Add a new test region-translate

This test exercises a bug in pixman_region32_translate(). The function
clips the region to int16 coordinates SHRT_MIN/SHRT_MAX.
---

diff --git a/.gitignore b/.gitignore
index 96d222b..aaeb75f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -42,6 +42,7 @@ test/fetch-test
 test/gradient-test
 test/oob-test
 test/region-test
+test/region-translate
 test/scaling-test
 test/screen-test
 test/trap-crasher
diff --git a/test/Makefile.am b/test/Makefile.am
index 5273bec..3d98e17 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -7,6 +7,7 @@ INCLUDES = -I$(top_srcdir)/pixman -I$(top_builddir)/pixman
 TESTPROGRAMS =			\
 	a1-trap-test		\
 	region-test		\
+	region-translate-test	\
 	fetch-test		\
 	oob-test		\
 	window-test		\
@@ -27,6 +28,7 @@ trap_crasher_LDADD = $(TEST_LDADD)
 oob_test_LDADD = $(TEST_LDADD)
 window_test_LDADD = $(TEST_LDADD)
 scaling_crash_test_LDADD = $(TEST_LDADD)
+region_translate_test_LDADD = $(TEST_LDADD)
 
 region_test_LDADD = $(TEST_LDADD)
 region_test_SOURCES = region-test.c utils.c utils.h
diff --git a/test/region-translate-test.c b/test/region-translate-test.c
new file mode 100644
index 0000000..0e96a5e
--- /dev/null
+++ b/test/region-translate-test.c
@@ -0,0 +1,30 @@
+#include <pixman.h>
+#include <assert.h>
+
+/* Pixman had a bug where 32bit regions where clipped to 16bit sizes when
+ * pixman_region32_translate() was called. This test exercises that bug.
+ */
+
+#define LARGE 32000
+
+int
+main (int argc, char **argv)
+{
+  pixman_box32_t rect = { -LARGE, -LARGE, LARGE, LARGE };
+  pixman_region32_t r1, r2;
+
+  pixman_region32_init_rects (&r1, &rect, 1);
+  pixman_region32_init_rect (&r2, rect.x1, rect.y1, rect.x2 - rect.x1, rect.y2 - rect.y1);
+
+  assert (pixman_region32_equal (&r1,  &r2));
+
+  pixman_region32_translate (&r1, -LARGE, LARGE);
+  pixman_region32_translate (&r1, LARGE, -LARGE);
+
+  assert (pixman_region32_equal (&r1,  &r2));
+
+  pixman_region32_fini (&r1);
+  pixman_region32_fini (&r2);
+
+  return 0;
+}