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 31 struct 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 format_flags = (hb_buffer_serialize_flags_t) flags; 74 } 75 void new_line (void) 76 { 77 line_no++; 78 } 79 void consume_text (hb_buffer_t *buffer, 80 const char *text, 81 unsigned int text_len, 82 hb_bool_t utf8_clusters) 83 { 84 g_string_set_size (gs, 0); 85 format.serialize_buffer_of_text (buffer, line_no, text, text_len, font, gs); 86 fprintf (options.fp, "%s", gs->str); 87 } 88 void shape_failed (hb_buffer_t *buffer, 89 const char *text, 90 unsigned int text_len, 91 hb_bool_t utf8_clusters) 92 { 93 g_string_set_size (gs, 0); 94 format.serialize_message (line_no, "msg: all shapers failed", gs); 95 fprintf (options.fp, "%s", gs->str); 96 } 97 void consume_glyphs (hb_buffer_t *buffer, 98 const char *text, 99 unsigned int text_len, 100 hb_bool_t utf8_clusters) 101 { 102 g_string_set_size (gs, 0); 103 format.serialize_buffer_of_glyphs (buffer, line_no, text, text_len, font, 104 output_format, format_flags, gs); 105 fprintf (options.fp, "%s", gs->str); 106 } 107 void finish (const font_options_t *font_opts) 108 { 109 hb_font_destroy (font); 110 g_string_free (gs, true); 111 gs = NULL; 112 font = NULL; 113 } 114 115 protected: 116 output_options_t options; 117 format_options_t format; 118 119 GString *gs; 120 unsigned int line_no; 121 hb_font_t *font; 122 hb_buffer_serialize_format_t output_format; 123 hb_buffer_serialize_flags_t format_flags; 124 }; 125 126 int 127 main (int argc, char **argv) 128 { 129 main_font_text_t<shape_consumer_t<output_buffer_t>, FONT_SIZE_UPEM, 0> driver; 130 return driver.main (argc, argv); 131 } 132