1/*
2 * Copyright © 2010  Behdad Esfahbod
3 * Copyright © 2011,2012  Google, Inc.
4 *
5 *  This is part of HarfBuzz, a text shaping library.
6 *
7 * Permission is hereby granted, without written agreement and without
8 * license or royalty fees, to use, copy, modify, and distribute this
9 * software and its documentation for any purpose, provided that the
10 * above copyright notice and the following two paragraphs appear in
11 * all copies of this software.
12 *
13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
17 * DAMAGE.
18 *
19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 *
25 * Google Author(s): Behdad Esfahbod
26 */
27
28#include "main-font-text.hh"
29#include "shape-consumer.hh"
30
31struct output_buffer_t
32{
33  output_buffer_t (option_parser_t *parser)
34		  : options (parser, hb_buffer_serialize_list_formats ()),
35		    format (parser),
36		    gs (NULL),
37		    line_no (0),
38		    font (NULL) {}
39
40  void init (const font_options_t *font_opts)
41  {
42    options.get_file_handle ();
43    gs = g_string_new (NULL);
44    line_no = 0;
45    font = hb_font_reference (font_opts->get_font ());
46
47    if (!options.output_format)
48      output_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
49    else
50      output_format = hb_buffer_serialize_format_from_string (options.output_format, -1);
51    /* An empty "output_format" parameter basically skips output generating.
52     * Useful for benchmarking. */
53    if ((!options.output_format || *options.output_format) &&
54	!hb_buffer_serialize_format_to_string (output_format))
55    {
56      if (options.explicit_output_format)
57	fail (false, "Unknown output format `%s'; supported formats are: %s",
58	      options.output_format,
59	      g_strjoinv ("/", const_cast<char**> (options.supported_formats)));
60      else
61	/* Just default to TEXT if not explicitly requested and the
62	 * file extension is not recognized. */
63	output_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
64    }
65
66    unsigned int flags = HB_BUFFER_SERIALIZE_FLAG_DEFAULT;
67    if (!format.show_glyph_names)
68      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES;
69    if (!format.show_clusters)
70      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS;
71    if (!format.show_positions)
72      flags |= HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS;
73    if (format.show_extents)
74      flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS;
75    format_flags = (hb_buffer_serialize_flags_t) flags;
76  }
77  void new_line (void)
78  {
79    line_no++;
80  }
81  void consume_text (hb_buffer_t  *buffer,
82		     const char   *text,
83		     unsigned int  text_len,
84		     hb_bool_t     utf8_clusters)
85  {
86    g_string_set_size (gs, 0);
87    format.serialize_buffer_of_text (buffer, line_no, text, text_len, font, gs);
88    fprintf (options.fp, "%s", gs->str);
89  }
90  void shape_failed (hb_buffer_t  *buffer,
91		     const char   *text,
92		     unsigned int  text_len,
93		     hb_bool_t     utf8_clusters)
94  {
95    g_string_set_size (gs, 0);
96    format.serialize_message (line_no, "msg: all shapers failed", gs);
97    fprintf (options.fp, "%s", gs->str);
98  }
99  void consume_glyphs (hb_buffer_t  *buffer,
100		       const char   *text,
101		       unsigned int  text_len,
102		       hb_bool_t     utf8_clusters)
103  {
104    g_string_set_size (gs, 0);
105    format.serialize_buffer_of_glyphs (buffer, line_no, text, text_len, font,
106				       output_format, format_flags, gs);
107    fprintf (options.fp, "%s", gs->str);
108  }
109  void finish (const font_options_t *font_opts)
110  {
111    hb_font_destroy (font);
112    g_string_free (gs, true);
113    gs = NULL;
114    font = NULL;
115  }
116
117  protected:
118  output_options_t options;
119  format_options_t format;
120
121  GString *gs;
122  unsigned int line_no;
123  hb_font_t *font;
124  hb_buffer_serialize_format_t output_format;
125  hb_buffer_serialize_flags_t format_flags;
126};
127
128int
129main (int argc, char **argv)
130{
131  main_font_text_t<shape_consumer_t<output_buffer_t>, FONT_SIZE_UPEM, 0> driver;
132  return driver.main (argc, argv);
133}
134