add a lib for rendering text in sdl2 and rules to make in makefile

SDL2_ttf/external/harfbuzz/util/hb-view.cc

@@ -0,0 +1,43 @@
+/*
+ * Copyright © 2010  Behdad Esfahbod
+ * Copyright © 2011,2012  Google, Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#include "batch.hh"
+#include "font-options.hh"
+#include "main-font-text.hh"
+#include "shape-consumer.hh"
+#include "text-options.hh"
+#include "view-cairo.hh"
+
+const unsigned DEFAULT_FONT_SIZE = 256;
+const unsigned SUBPIXEL_BITS = 6;
+
+int
+main (int argc, char **argv)
+{
+  using main_t = main_font_text_t<shape_consumer_t<view_cairo_t>, font_options_t, shape_text_options_t>;
+  return batch_main<main_t> (argc, argv);
+}