Add test case for out-of-bounds memory access.

diff --git a/test/Makefile.am b/test/Makefile.am
index 2590617..cfe367e 100644 (file)
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -5,12 +5,14 @@ TESTPROGRAMS =                        \
        region-test             \
        scaling-test            \
        fetch-test              \
+       oob-test                \
        trap-crasher
 
 fetch_test_LDADD = $(TEST_LDADD)
 region_test_LDADD = $(TEST_LDADD)
 scaling_test_LDADD = $(TEST_LDADD)
 trap_crasher_LDADD = $(TEST_LDADD)
+oob_test_LDADD = $(TEST_LDADD)
 
 # GTK using test programs
 

diff --git a/test/oob-test.c b/test/oob-test.c
new file mode 100644 (file)
index 0000000..fbcb537
--- /dev/null
+++ b/test/oob-test.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "pixman.h"
+#include "utils.h"
+
+int
+main (int argc, char **argv)
+{
+#define DWIDTH 3
+#define DHEIGHT 6
+#define DSTRIDE 16
+
+#define SWIDTH 5
+#define SHEIGHT 7
+#define SSTRIDE 20
+    
+    uint32_t *src = malloc (DHEIGHT * SSTRIDE);
+    uint32_t *dest = malloc (DHEIGHT * DSTRIDE);
+    pixman_image_t *simg, *dimg;
+
+    int i;
+
+    for (i = 0; i < (SHEIGHT * SSTRIDE) / 4; ++i)
+       src[i] = 0x7f007f00;
+
+    for (i = 0; i < (DHEIGHT * DSTRIDE) / 4; ++i)
+       dest[i] = 0;
+
+    simg = pixman_image_create_bits (PIXMAN_a8r8g8b8, SWIDTH, SHEIGHT, src, SSTRIDE);
+    dimg = pixman_image_create_bits (PIXMAN_x8r8g8b8, DWIDTH, DHEIGHT, dest, DSTRIDE);
+
+    pixman_image_composite (PIXMAN_OP_SRC, simg, NULL, dimg,
+                           1, 8, 0, 0, 1, -1, 1, 8);
+
+    return 0;
+}