add cairo

1 files changed, 106 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/text-antialias.c b/libs/cairo-1.16.0/test/text-antialias.c
new file mode 100644
index 0000000..7d33892
--- /dev/null
+++ b/libs/cairo-1.16.0/test/text-antialias.c
@@ -0,0 +1,106 @@
+/*
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * 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
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+
+#define WIDTH  31
+#define HEIGHT 22
+#define TEXT_SIZE 12
+
+static cairo_test_status_t
+draw (cairo_t *cr, cairo_antialias_t antialias)
+{
+    cairo_text_extents_t extents;
+    cairo_font_options_t *font_options;
+    const char black[] = "black", blue[] = "blue";
+
+    cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
+    cairo_paint (cr);
+
+    cairo_select_font_face (cr, CAIRO_TEST_FONT_FAMILY " Sans",
+			    CAIRO_FONT_SLANT_NORMAL,
+			    CAIRO_FONT_WEIGHT_NORMAL);
+    cairo_set_font_size (cr, TEXT_SIZE);
+
+    font_options = cairo_font_options_create ();
+    cairo_get_font_options (cr, font_options);
+    cairo_font_options_set_antialias (font_options, antialias);
+    cairo_font_options_set_subpixel_order (font_options, CAIRO_SUBPIXEL_ORDER_RGB);
+    cairo_set_font_options (cr, font_options);
+
+    cairo_font_options_destroy (font_options);
+
+    cairo_set_source_rgb (cr, 0, 0, 0); /* black */
+    cairo_text_extents (cr, black, &extents);
+    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
+    cairo_show_text (cr, black);
+    cairo_translate (cr, 0, -extents.y_bearing + 1);
+
+    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */
+    cairo_text_extents (cr, blue, &extents);
+    cairo_move_to (cr, -extents.x_bearing, -extents.y_bearing);
+    cairo_show_text (cr, blue);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+draw_gray (cairo_t *cr, int width, int height)
+{
+    return draw (cr, CAIRO_ANTIALIAS_GRAY);
+}
+
+static cairo_test_status_t
+draw_none (cairo_t *cr, int width, int height)
+{
+    return draw (cr, CAIRO_ANTIALIAS_NONE);
+}
+
+static cairo_test_status_t
+draw_subpixel (cairo_t *cr, int width, int height)
+{
+    return draw (cr, CAIRO_ANTIALIAS_SUBPIXEL);
+}
+
+CAIRO_TEST (text_antialias_gray,
+	    "Tests text rendering with grayscale antialiasing",
+	    "text", /* keywords */
+	    "target=raster", /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw_gray)
+
+CAIRO_TEST (text_antialias_none,
+	    "Tests text rendering with no antialiasing",
+	    "text", /* keywords */
+	    "target=raster", /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw_none)
+
+CAIRO_TEST (text_antialias_subpixel,
+	    "Tests text rendering with subpixel antialiasing",
+	    "text", /* keywords */
+	    "target=raster", /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw_subpixel)