From c87b317f0eb118e67134e8e419a6d65e0fa40d30 Mon Sep 17 00:00:00 2001 From: Behdad Esfahbod Date: Tue, 15 May 2012 23:53:18 -0400 Subject: [PATCH] [util] Add hb-ot-shape-closure tool MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Computes all the glyphs that may be generated given a font and set of Unicode characters. The order of the Unicode characters is irrelevant. Sample output: behdad:util 0$ ./hb-ot-shape-closure Doulos\ SIL\ Regular.ttf f f f_f behdad:util 0$ ./hb-ot-shape-closure Doulos\ SIL\ Regular.ttf i i behdad:util 0$ ./hb-ot-shape-closure Doulos\ SIL\ Regular.ttf fi f f_i f_f_i f_f i behdad:util 0$ ./hb-ot-shape-closure DroidNaskh-Regular.ttf ب uni0628 uni0628.init uni0628.medi uni0628.fina behdad:util 0$ ./hb-ot-shape-closure DroidNaskh-Regular.ttf ا uni0627 uni0627.fina behdad:util 0$ ./hb-ot-shape-closure DroidNaskh-Regular.ttf با uni0627 uni0627.fina uni0628 uni0628.init uni0628.medi uni0628.fina behdad:util 0$ ./hb-ot-shape-closure DroidNaskh-Regular.ttf با --no-glyph-names 5 6 133 134 135 136 --- configure.ac | 2 +- util/Makefile.am | 22 ++++++--- util/hb-ot-shape-closure.cc | 112 ++++++++++++++++++++++++++++++++++++++++++++ util/options.hh | 12 +++++ 4 files changed, 140 insertions(+), 8 deletions(-) create mode 100644 util/hb-ot-shape-closure.cc diff --git a/configure.ac b/configure.ac index 853d083..073228b 100644 --- a/configure.ac +++ b/configure.ac @@ -159,7 +159,7 @@ AM_CONDITIONAL(HAVE_FREETYPE, $have_freetype) dnl =========================================================================== -have_ot=true; +have_ot=true if $have_ot; then AC_DEFINE(HAVE_OT, 1, [Have native OpenType Layout backend]) fi diff --git a/util/Makefile.am b/util/Makefile.am index 1a336b9..944b1aa 100644 --- a/util/Makefile.am +++ b/util/Makefile.am @@ -24,6 +24,7 @@ LDADD = \ if HAVE_GLIB if HAVE_FREETYPE + if HAVE_CAIRO_FT hb_view_SOURCES = \ hb-view.cc \ @@ -46,12 +47,8 @@ hb_view_LDADD = \ $(CAIRO_FT_LIBS) \ $(NULL) bin_PROGRAMS += hb-view -endif -endif -endif +endif # HAVE_CAIRO_FT -if HAVE_GLIB -if HAVE_FREETYPE hb_shape_SOURCES = \ hb-shape.cc \ options.cc \ @@ -60,7 +57,18 @@ hb_shape_SOURCES = \ shape-consumer.hh \ $(NULL) bin_PROGRAMS += hb-shape -endif -endif + +if HAVE_OT +hb_ot_shape_closure_SOURCES = \ + hb-ot-shape-closure.cc \ + options.cc \ + options.hh \ + main-font-text.hh \ + $(NULL) +bin_PROGRAMS += hb-ot-shape-closure +endif # HAVE_OT + +endif # HAVE_FREETYPE +endif # HAVE_GLIB -include $(top_srcdir)/git.mk diff --git a/util/hb-ot-shape-closure.cc b/util/hb-ot-shape-closure.cc new file mode 100644 index 0000000..afd88ae --- /dev/null +++ b/util/hb-ot-shape-closure.cc @@ -0,0 +1,112 @@ +/* + * Copyright © 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 "main-font-text.hh" + +#ifdef HAVE_FREETYPE +#include +#endif + +struct shape_closure_consumer_t : option_group_t +{ + shape_closure_consumer_t (option_parser_t *parser) : + shaper (parser), + show_glyph_names (true) + { + add_options (parser); + } + + void add_options (struct option_parser_t *parser) + { + GOptionEntry entries[] = + { + {"no-glyph-names", 0, G_OPTION_FLAG_REVERSE, G_OPTION_ARG_NONE, &this->show_glyph_names, "Use glyph indices instead of names", NULL}, + {NULL} + }; + parser->add_group (entries, + "format", + "Format options:", + "Options controlling output formatting", + this); + } + + void init (const font_options_t *font_opts) + { + glyphs = hb_set_create (); + font = hb_font_reference (font_opts->get_font ()); + } + void consume_line (hb_buffer_t *buffer, + const char *text, + unsigned int text_len) + { + FT_Face ft_face = show_glyph_names ? hb_ft_font_get_face (font) : NULL; + + hb_set_clear (glyphs); + shaper.shape_closure (text, text_len, font, buffer, glyphs); + /* Print it out! */ + hb_codepoint_t start = hb_set_min (glyphs); + hb_codepoint_t end = 1 + hb_set_max (glyphs); + bool first = true; + for (hb_codepoint_t i = start; i < end; i++) + if (hb_set_has (glyphs, i)) { + if (first) + first = false; + else + printf (" "); + /* TODO refactor this */ + char glyph_name[30]; + if (show_glyph_names) { + if (!FT_Get_Glyph_Name (ft_face, i, glyph_name, sizeof (glyph_name))) + printf ("%s", glyph_name); + else + printf ("gid%u", i); + } else + printf ("%u", i); + } + } + void finish (const font_options_t *font_opts) + { + printf ("\n"); + hb_font_destroy (font); + font = NULL; + hb_set_destroy (glyphs); + glyphs = NULL; + } + + protected: + shape_options_t shaper; + hb_bool_t show_glyph_names; + + hb_set_t *glyphs; + hb_font_t *font; +}; + +int +main (int argc, char **argv) +{ + main_font_text_t driver; + return driver.main (argc, argv); +} diff --git a/util/options.hh b/util/options.hh index dec165b..5a79cef 100644 --- a/util/options.hh +++ b/util/options.hh @@ -48,6 +48,9 @@ #endif #include +#ifdef HAVE_OT +#include +#endif #include #include @@ -181,6 +184,15 @@ struct shape_options_t : option_group_t return hb_shape_full (font, buffer, features, num_features, shapers); } + void shape_closure (const char *text, int text_len, + hb_font_t *font, hb_buffer_t *buffer, + hb_set_t *glyphs) { + hb_buffer_reset (buffer); + hb_buffer_add_utf8 (buffer, text, text_len, 0, text_len); + setup_buffer (buffer); + hb_ot_shape_glyphs_closure (font, buffer, features, num_features, glyphs); + } + const char *direction; const char *language; const char *script; -- 2.7.4