Attachment 104551 Details for Bug 81699 – testcase

[patch] testcase

0001-Bug-81699-Segfault-sweep_line_delete-on-video-playba.patch (text/plain), 2.26 KB, created by Massimo on 2014-08-13 09:34:53 UTC

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Creator: Massimo

Created: 2014-08-13 09:34:53 UTC

Size: 2.26 KB

patch

obsolete

>From df0a0b82f03f802f076ed5129d2c73728d373bf9 Mon Sep 17 00:00:00 2001
>From: Massimo Valentini <mvalentini@src.gnome.org>
>Date: Wed, 13 Aug 2014 11:24:51 +0200
>Subject: [PATCH] Bug 81699: Segfault sweep_line_delete on video playback (2)
>
>test case useful to remove webkit from the list of suspects.
>
>On linux x86_64 running:
>
>CAIRO_TEST_TARGET=xlib gdb --args test/.libs/cairo-test-suite sweep-line-delete
>
>produces a crash and a backtrace similar (shorter) to
>that in the bug report.
>---
> test/Makefile.sources    |  1 +
> test/sweep-line-delete.c | 40 ++++++++++++++++++++++++++++++++++++++++
> 2 files changed, 41 insertions(+)
> create mode 100644 test/sweep-line-delete.c
>
>diff --git a/test/Makefile.sources b/test/Makefile.sources
>index 916d91a..ab5d6f6 100644
>--- a/test/Makefile.sources
>+++ b/test/Makefile.sources
>@@ -342,6 +342,7 @@ test_sources = \
> 	surface-pattern-scale-down.c			\
> 	surface-pattern-scale-down-extend.c		\
> 	surface-pattern-scale-up.c			\
>+	sweep-line-delete.c				\
> 	text-antialias.c				\
> 	text-antialias-subpixel.c			\
> 	text-cache-crash.c				\
>diff --git a/test/sweep-line-delete.c b/test/sweep-line-delete.c
>new file mode 100644
>index 0000000..a16e0e2
>--- /dev/null
>+++ b/test/sweep-line-delete.c
>@@ -0,0 +1,40 @@
>+#include "cairo-test.h"
>+
>+static cairo_test_status_t
>+draw (cairo_t *cr, int w, int h)
>+{
>+  const cairo_matrix_t transform = {0.0848671, 0, 0, 0.0848671, 39.907812, 5.608896};
>+
>+  cairo_transform (cr, &transform);
>+
>+  cairo_move_to (cr, 8, 0);
>+  cairo_curve_to (cr, 12.417969, 0, 16, 3.582031, 16, 8);
>+  cairo_curve_to (cr, 16, 12.417969, 12.417969, 16, 8, 16);
>+  cairo_curve_to (cr, 3.582031, 16, 0, 12.417969, 0, 8);
>+  cairo_curve_to (cr, 0, 3.582031, 3.582031, 0, 8, 0);
>+  cairo_close_path (cr);
>+
>+  cairo_clip (cr);
>+
>+  cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
>+  cairo_move_to (cr, 16, 0);
>+  cairo_line_to (cr, 8, 8);
>+  cairo_line_to (cr, 16, 16);
>+  cairo_close_path (cr);
>+
>+  cairo_clip (cr);
>+
>+  cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT);
>+
>+  cairo_rectangle (cr, 0, 0, 16, 16);
>+  cairo_fill (cr);
>+
>+  return CAIRO_TEST_SUCCESS;
>+}
>+
>+CAIRO_TEST (sweep_line_delete,
>+	    "triggers sweep_line_delete crash",
>+	    "sweep_line_delete", /* keywords */
>+	    NULL, /* requirements */
>+	    800, 600,
>+	    NULL, draw)
>-- 
>1.9.3
>

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