add cairo

1 files changed, 96 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/mask-transformed-image.c b/libs/cairo-1.16.0/test/mask-transformed-image.c
new file mode 100644
index 0000000..13c8fe7
--- /dev/null
+++ b/libs/cairo-1.16.0/test/mask-transformed-image.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2008 Kai-Uwe Behrmann
+ *
+ * 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.
+ *
+ * KAI_UWE BEHRMANN 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: Kai-Uwe Behrmann <ku.b@gmx.de>
+ *         Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairo-test.h"
+
+static const char png_filename[] = "romedalen.png";
+
+static cairo_surface_t *
+create_mask (cairo_t *dst, int width, int height)
+{
+    cairo_surface_t *mask;
+    cairo_t *cr;
+
+    mask = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height);
+    cr = cairo_create (mask);
+    cairo_surface_destroy (mask);
+
+    cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
+    cairo_rectangle (cr, width/4, height/4, width/2, height/2);
+    cairo_fill (cr);
+
+    mask = cairo_surface_reference (cairo_get_target (cr));
+    cairo_destroy (cr);
+
+    return mask;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+    cairo_surface_t *image, *mask;
+
+    image = cairo_test_create_surface_from_png (ctx, png_filename);
+    mask = create_mask (cr, 40, 40);
+
+    /* opaque background */
+    cairo_paint (cr);
+
+    /* center */
+    cairo_translate (cr,
+	             (width - cairo_image_surface_get_width (image)) / 2.,
+		     (height - cairo_image_surface_get_height (image)) / 2.);
+
+    /* rotate 30 degree around the center */
+    cairo_translate (cr, width/2., height/2.);
+    cairo_rotate (cr, -30 * 2 * M_PI / 360);
+    cairo_translate (cr, -width/2., -height/2.);
+
+    /* place the image on our surface */
+    cairo_set_source_surface (cr, image, 0, 0);
+
+    /* reset the drawing matrix */
+    cairo_identity_matrix (cr);
+
+    /* fill nicely */
+    cairo_scale (cr, width / 40., height / 40.);
+
+    /* apply the mask */
+    cairo_mask_surface (cr, mask, 0, 0);
+
+    cairo_surface_destroy (mask);
+    cairo_surface_destroy (image);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (mask_transformed_image,
+	    "Test that cairo_mask() is affected properly by the CTM and not the image",
+	    "mask", /* keywords */
+	    NULL, /* requirements */
+	    80, 80,
+	    NULL, draw)