shape_consumer_t用 main
hb_shape_full() at hb-shape.cc:374 0x7ffff7b413df shape_options_t::shape() at options.hh:248 0x4049bc shape_consumer_t<view_cairo_t>::consume_line() at shape-consumer.hh:61 0x4053b2 main_font_text_t<shape_consumer_t<view_cairo_t>, 256, 8>::main() at main-font-text.hh:80 0x4051eb main() at hb-view.cc:39 0x404410
２つ、consume_lineの関数がある。 H A D shape-consumer.hh 48 void consume_line (hb_buffer_t *buffer, function in struct:shape_consumer_t H A D hb-ot-shape-closure.cc 62 void consume_line (hb_buffer_t *buffer, function in struct:shape_closure_consumer_t
①−１：shape_consumer_t用
32 #define DEFAULT_FONT_SIZE 256 33 #define SUBPIXEL_BITS 8 34 35 int 36 main (int argc, char **argv) 37 { 38 main_font_text_t<shape_consumer_t<view_cairo_t>, DEFAULT_FONT_SIZE, SUBPIXEL_BITS> driver; 39 return driver.main (argc, argv); 40 }
②共通 50 template <typename consumer_t, int default_font_size, int subpixel_bits> 51 struct main_font_text_t 52 { 59 int 60 main (int argc, char **argv) 61 { 62 options.parse (&argc, &argv); 63 64 argc--, argv++; 65 if (argc && !font_opts.font_file) font_opts.font_file = locale_to_utf8 (argv[0]), argc--, argv++; 66 if (argc && !input.text && !input.text_file) input.text = locale_to_utf8 (argv[0]), argc--, argv++; 67 if (argc) 68 fail (true, "Too many arguments on the command line"); 69 if (!font_opts.font_file) 70 options.usage (); 71 if (!input.text && !input.text_file) 72 input.text_file = g_strdup ("-"); 73 74 consumer.init (&font_opts); 75 76 hb_buffer_t *buffer = hb_buffer_create (); 77 unsigned int text_len; 78 const char *text; 79 while ((text = input.get_line (&text_len))) 80 consumer.consume_line (buffer, text, text_len, input.text_before, input.text_after); <====== 81 hb_buffer_destroy (buffer); 82 83 consumer.finish (&font_opts); 84 85 return consumer.failed ? 1 : 0; 86 }
③−１：：shape_consumer_t用 33 template <typename output_t> 34 struct shape_consumer_t 35 { 48 void consume_line (hb_buffer_t *buffer, 49 const char *text, 50 unsigned int text_len, 51 const char *text_before, 52 const char *text_after) 53 { 54 output.new_line (); 55 56 for (unsigned int n = shaper.num_iterations; n; n--) 57 { 58 shaper.populate_buffer (buffer, text, text_len, text_before, text_after); 59 if (n == 1) 60 output.consume_text (buffer, text, text_len, shaper.utf8_clusters); 61 if (!shaper.shape (font, buffer)) { 62 failed = true; 63 hb_buffer_set_length (buffer, 0); 64 output.shape_failed (buffer, text, text_len, shaper.utf8_clusters); 65 return; 66 } 67 }
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 }
デバッグ用かな？ 774 void 775 format_options_t::serialize_buffer_of_text (hb_buffer_t *buffer, 776 unsigned int line_no, 777 const char *text, 778 unsigned int text_len, 779 hb_font_t *font, 780 GString *gs) 781{ 782 if (show_text) { 783 serialize_line_no (line_no, gs); 784 g_string_append_c (gs, '('); 785 g_string_append_len (gs, text, text_len); 786 g_string_append_c (gs, ')'); 787 g_string_append_c (gs, '\n'); 788 } 789 790 if (show_unicode) { 791 serialize_line_no (line_no, gs); 792 serialize_unicode (buffer, gs); 793 g_string_append_c (gs, '\n'); 794 } 795}
