1 files changed, 81 insertions, 0 deletions
diff --git a/test/xcomposite-projection.c b/test/xcomposite-projection.c
new file mode 100644
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+++ b/test/xcomposite-projection.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2009 Benjamin Otte
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Kai-Uwe Behrmann not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Kai-Uwe Behrmann makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * BENJAMIN OTTE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL KAI_UWE BEHRMANN BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Benjamin Otte <otte@gnome.org>
+ */
+
+#include "cairo-test.h"
+
+static const char png_filename[] = "romedalen.png";
+
+static cairo_surface_t *
+get_red_surface (void)
+{
+  cairo_surface_t *surface;
+  cairo_t *cr;
+  
+  surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 256, 192);
+  
+  cr = cairo_create (surface);
+  cairo_set_source_rgb (cr, 0.75, 0.25, 0.25);
+  cairo_paint (cr);
+  cairo_destroy (cr);
+
+  return surface;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_surface_t *image;
+
+    image = get_red_surface ();
+
+    /* we don't want to debug antialiasing artifacts */
+    cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
+
+    /* dark grey background */
+    cairo_set_source_rgb (cr, 0.25, 0.25, 0.25);
+    cairo_paint (cr);
+
+    /* magic transform */
+    cairo_translate (cr, 10, -40);
+    cairo_rotate (cr, -0.05);
+
+    /* place the image on our surface */
+    cairo_set_source_surface (cr, image, 0, 0);
+
+    /* paint the image */
+    cairo_rectangle (cr, 0, 0, cairo_image_surface_get_width (image), cairo_image_surface_get_height (image));
+    cairo_fill (cr);
+
+    cairo_surface_destroy (image);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (xcomposite_projection,
+	    "Test a bug with XRenderComposite reference computation when projecting the first trapezoid onto 16.16 space",
+	    "xlib", /* keywords */
+	    NULL, /* requirements */
+	    300, 150,
+	    NULL, draw)