1 files changed, 78 insertions, 0 deletions
diff --git a/test/stroke-ctm-caps.c b/test/stroke-ctm-caps.c
new file mode 100644
index 000000000..1bbee83c6
--- /dev/null
+++ b/test/stroke-ctm-caps.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2008 Adrian Johnson
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#include "cairo-test.h"
+
+#define SIZE 100
+#define PAD 2
+#define WIDTH (PAD + SIZE + PAD)
+#define HEIGHT WIDTH
+
+/* This test is designed to test that PDF viewers use the correct
+ * alpha values in an Alpha SMasks. Some viewers use the color values
+ * instead of the alpha. The test draws a triangle and rectangle in a
+ * group then draws the group using cairo_mask(). The mask consists of
+ * a circle with the rgba (0.4, 0.4, 0.4, 0.8) and the background rgba
+ * (0.8, 0.8, 0.8, 0.4).
+ */
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_set_source_rgb (cr, 1, 1, 1);
+    cairo_paint (cr);
+
+    /* flip the CTM, which most clearly shows the problem */
+    cairo_translate (cr, 0, HEIGHT);
+    cairo_scale (cr, 1, -1);
+
+    cairo_set_source_rgb (cr, 0, 0, 0);
+
+    cairo_set_line_width (cr, 10);
+    cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+    cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+
+    cairo_move_to (cr, 20, 20);
+    cairo_line_to (cr, 20, 70);
+    cairo_stroke (cr);
+
+    cairo_move_to (cr, 40, 20);
+    cairo_line_to (cr, 70, 70);
+    cairo_stroke (cr);
+
+    cairo_move_to (cr, 60, 20);
+    cairo_line_to (cr, 90, 20);
+    cairo_stroke (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (stroke_ctm_caps,
+	    "Test that the stroker correctly passes the device-space vector to the stroker for endcaps",
+	    "stroke, transform", /* keywords */
+	    NULL, /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw)