diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/main.cc')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/main.cc | 521 |
1 files changed, 0 insertions, 521 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/main.cc b/src/3rdparty/harfbuzz-ng/src/main.cc deleted file mode 100644 index 1ab013cd3a..0000000000 --- a/src/3rdparty/harfbuzz-ng/src/main.cc +++ /dev/null @@ -1,521 +0,0 @@ -/* - * Copyright © 2007,2008,2009 Red Hat, Inc. - * Copyright © 2018,2019,2020 Ebrahim Byagowi - * Copyright © 2018 Khaled Hosny - * - * 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. - * - * Red Hat Author(s): Behdad Esfahbod - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "hb.h" -#include "hb-ot.h" - -#include <cassert> -#include <cstdlib> -#include <cstdio> -#include <cstring> - -#ifdef HB_NO_OPEN -#define hb_blob_create_from_file_or_fail(x) hb_blob_get_empty () -#endif - -#if !defined(HB_NO_COLOR) && !defined(HB_NO_DRAW) && defined(HB_EXPERIMENTAL_API) -static void -svg_dump (hb_face_t *face, unsigned face_index) -{ - unsigned glyph_count = hb_face_get_glyph_count (face); - - for (unsigned glyph_id = 0; glyph_id < glyph_count; ++glyph_id) - { - hb_blob_t *blob = hb_ot_color_glyph_reference_svg (face, glyph_id); - - if (hb_blob_get_length (blob) == 0) continue; - - unsigned length; - const char *data = hb_blob_get_data (blob, &length); - - char output_path[255]; - sprintf (output_path, "out/svg-%u-%u.svg%s", - glyph_id, - face_index, - // append "z" if the content is gzipped, https://stackoverflow.com/a/6059405 - (length > 2 && (data[0] == '\x1F') && (data[1] == '\x8B')) ? "z" : ""); - - FILE *f = fopen (output_path, "wb"); - fwrite (data, 1, length, f); - fclose (f); - - hb_blob_destroy (blob); - } -} - -/* _png API is so easy to use unlike the below code, don't get confused */ -static void -png_dump (hb_face_t *face, unsigned face_index) -{ - unsigned glyph_count = hb_face_get_glyph_count (face); - hb_font_t *font = hb_font_create (face); - - /* scans the font for strikes */ - unsigned sample_glyph_id; - /* we don't care about different strikes for different glyphs at this point */ - for (sample_glyph_id = 0; sample_glyph_id < glyph_count; ++sample_glyph_id) - { - hb_blob_t *blob = hb_ot_color_glyph_reference_png (font, sample_glyph_id); - unsigned blob_length = hb_blob_get_length (blob); - hb_blob_destroy (blob); - if (blob_length != 0) - break; - } - - unsigned upem = hb_face_get_upem (face); - unsigned blob_length = 0; - unsigned strike = 0; - for (unsigned ppem = 1; ppem < upem; ++ppem) - { - hb_font_set_ppem (font, ppem, ppem); - hb_blob_t *blob = hb_ot_color_glyph_reference_png (font, sample_glyph_id); - unsigned new_blob_length = hb_blob_get_length (blob); - hb_blob_destroy (blob); - if (new_blob_length != blob_length) - { - for (unsigned glyph_id = 0; glyph_id < glyph_count; ++glyph_id) - { - hb_blob_t *blob = hb_ot_color_glyph_reference_png (font, glyph_id); - - if (hb_blob_get_length (blob) == 0) continue; - - unsigned length; - const char *data = hb_blob_get_data (blob, &length); - - char output_path[255]; - sprintf (output_path, "out/png-%u-%u-%u.png", glyph_id, strike, face_index); - - FILE *f = fopen (output_path, "wb"); - fwrite (data, 1, length, f); - fclose (f); - - hb_blob_destroy (blob); - } - - strike++; - blob_length = new_blob_length; - } - } - - hb_font_destroy (font); -} - -struct user_data_t -{ - FILE *f; - hb_position_t ascender; -}; - -static void -move_to (hb_position_t to_x, hb_position_t to_y, user_data_t &user_data) -{ - fprintf (user_data.f, "M%d,%d", to_x, user_data.ascender - to_y); -} - -static void -line_to (hb_position_t to_x, hb_position_t to_y, user_data_t &user_data) -{ - fprintf (user_data.f, "L%d,%d", to_x, user_data.ascender - to_y); -} - -static void -quadratic_to (hb_position_t control_x, hb_position_t control_y, - hb_position_t to_x, hb_position_t to_y, - user_data_t &user_data) -{ - fprintf (user_data.f, "Q%d,%d %d,%d", control_x, user_data.ascender - control_y, - to_x, user_data.ascender - to_y); -} - -static void -cubic_to (hb_position_t control1_x, hb_position_t control1_y, - hb_position_t control2_x, hb_position_t control2_y, - hb_position_t to_x, hb_position_t to_y, - user_data_t &user_data) -{ - fprintf (user_data.f, "C%d,%d %d,%d %d,%d", control1_x, user_data.ascender - control1_y, - control2_x, user_data.ascender - control2_y, - to_x, user_data.ascender - to_y); -} - -static void -close_path (user_data_t &user_data) -{ - fprintf (user_data.f, "Z"); -} - -static void -layered_glyph_dump (hb_font_t *font, hb_draw_funcs_t *funcs, unsigned face_index) -{ - hb_face_t *face = hb_font_get_face (font); - unsigned palette_count = hb_ot_color_palette_get_count (face); - for (unsigned palette = 0; palette < palette_count; ++palette) - { - unsigned num_colors = hb_ot_color_palette_get_colors (face, palette, 0, nullptr, nullptr); - if (!num_colors) continue; - - hb_color_t *colors = (hb_color_t*) calloc (num_colors, sizeof (hb_color_t)); - hb_ot_color_palette_get_colors (face, palette, 0, &num_colors, colors); - if (!num_colors) - { - free (colors); - continue; - } - - unsigned num_glyphs = hb_face_get_glyph_count (face); - for (hb_codepoint_t gid = 0; gid < num_glyphs; ++gid) - { - unsigned num_layers = hb_ot_color_glyph_get_layers (face, gid, 0, nullptr, nullptr); - if (!num_layers) continue; - - hb_ot_color_layer_t *layers = (hb_ot_color_layer_t*) malloc (num_layers * sizeof (hb_ot_color_layer_t)); - - hb_ot_color_glyph_get_layers (face, gid, 0, &num_layers, layers); - if (num_layers) - { - hb_font_extents_t font_extents; - hb_font_get_extents_for_direction (font, HB_DIRECTION_LTR, &font_extents); - hb_glyph_extents_t extents = {0}; - if (!hb_font_get_glyph_extents (font, gid, &extents)) - { - printf ("Skip gid: %d\n", gid); - continue; - } - - char output_path[255]; - sprintf (output_path, "out/colr-%u-%u-%u.svg", gid, palette, face_index); - FILE *f = fopen (output_path, "wb"); - fprintf (f, "<svg xmlns=\"http://www.w3.org/2000/svg\"" - " viewBox=\"%d %d %d %d\">\n", - extents.x_bearing, 0, - extents.x_bearing + extents.width, -extents.height); - user_data_t user_data; - user_data.ascender = extents.y_bearing; - user_data.f = f; - - for (unsigned layer = 0; layer < num_layers; ++layer) - { - hb_color_t color = 0x000000FF; - if (layers[layer].color_index != 0xFFFF) - color = colors[layers[layer].color_index]; - fprintf (f, "<path fill=\"#%02X%02X%02X\" ", - hb_color_get_red (color), hb_color_get_green (color), hb_color_get_green (color)); - if (hb_color_get_alpha (color) != 255) - fprintf (f, "fill-opacity=\"%.3f\"", (double) hb_color_get_alpha (color) / 255.); - fprintf (f, "d=\""); - if (!hb_font_draw_glyph (font, layers[layer].glyph, funcs, &user_data)) - printf ("Failed to decompose layer %d while %d\n", layers[layer].glyph, gid); - fprintf (f, "\"/>\n"); - } - - fprintf (f, "</svg>"); - fclose (f); - } - free (layers); - } - - free (colors); - } -} - -static void -dump_glyphs (hb_font_t *font, hb_draw_funcs_t *funcs, unsigned face_index) -{ - unsigned num_glyphs = hb_face_get_glyph_count (hb_font_get_face (font)); - for (unsigned gid = 0; gid < num_glyphs; ++gid) - { - hb_font_extents_t font_extents; - hb_font_get_extents_for_direction (font, HB_DIRECTION_LTR, &font_extents); - hb_glyph_extents_t extents = {0}; - if (!hb_font_get_glyph_extents (font, gid, &extents)) - { - printf ("Skip gid: %d\n", gid); - continue; - } - - char output_path[255]; - sprintf (output_path, "out/%u-%u.svg", face_index, gid); - FILE *f = fopen (output_path, "wb"); - fprintf (f, "<svg xmlns=\"http://www.w3.org/2000/svg\"" - " viewBox=\"%d %d %d %d\"><path d=\"", - extents.x_bearing, 0, - extents.x_bearing + extents.width, font_extents.ascender - font_extents.descender); - user_data_t user_data; - user_data.ascender = font_extents.ascender; - user_data.f = f; - if (!hb_font_draw_glyph (font, gid, funcs, &user_data)) - printf ("Failed to decompose gid: %d\n", gid); - fprintf (f, "\"/></svg>"); - fclose (f); - } -} - -static void -dump_glyphs (hb_blob_t *blob, const char *font_name) -{ - FILE *font_name_file = fopen ("out/.dumped_font_name", "r"); - if (font_name_file) - { - fprintf (stderr, "Purge or rename ./out folder if you like to run a glyph dump,\n" - "run it like `rm -rf out && mkdir out && src/main font-file.ttf`\n"); - return; - } - - font_name_file = fopen ("out/.dumped_font_name", "w"); - if (!font_name_file) - { - fprintf (stderr, "./out is not accessible as a folder, create it please\n"); - return; - } - fwrite (font_name, 1, strlen (font_name), font_name_file); - fclose (font_name_file); - - hb_draw_funcs_t *funcs = hb_draw_funcs_create (); - hb_draw_funcs_set_move_to_func (funcs, (hb_draw_move_to_func_t) move_to); - hb_draw_funcs_set_line_to_func (funcs, (hb_draw_line_to_func_t) line_to); - hb_draw_funcs_set_quadratic_to_func (funcs, (hb_draw_quadratic_to_func_t) quadratic_to); - hb_draw_funcs_set_cubic_to_func (funcs, (hb_draw_cubic_to_func_t) cubic_to); - hb_draw_funcs_set_close_path_func (funcs, (hb_draw_close_path_func_t) close_path); - - unsigned num_faces = hb_face_count (blob); - for (unsigned face_index = 0; face_index < num_faces; ++face_index) - { - hb_face_t *face = hb_face_create (blob, face_index); - hb_font_t *font = hb_font_create (face); - - if (hb_ot_color_has_png (face)) - printf ("Dumping png (CBDT/sbix)...\n"); - png_dump (face, face_index); - - if (hb_ot_color_has_svg (face)) - printf ("Dumping svg (SVG )...\n"); - svg_dump (face, face_index); - - if (hb_ot_color_has_layers (face) && hb_ot_color_has_palettes (face)) - printf ("Dumping layered color glyphs (COLR/CPAL)...\n"); - layered_glyph_dump (font, funcs, face_index); - - dump_glyphs (font, funcs, face_index); - - hb_font_destroy (font); - hb_face_destroy (face); - } - - hb_draw_funcs_destroy (funcs); -} -#endif - -#ifndef MAIN_CC_NO_PRIVATE_API -/* Only this part of this mini app uses private API */ -#include "hb-static.cc" -#include "hb-open-file.hh" -#include "hb-ot-layout-gdef-table.hh" -#include "hb-ot-layout-gsubgpos.hh" - -using namespace OT; - -static void -print_layout_info_using_private_api (hb_blob_t *blob) -{ - const char *font_data = hb_blob_get_data (blob, nullptr); - hb_blob_t *font_blob = hb_sanitize_context_t ().sanitize_blob<OpenTypeFontFile> (blob); - const OpenTypeFontFile* sanitized = font_blob->as<OpenTypeFontFile> (); - if (!font_blob->data) - { - printf ("Sanitization of the file wasn't successful. Exit"); - exit (1); - } - const OpenTypeFontFile& ot = *sanitized; - - switch (ot.get_tag ()) - { - case OpenTypeFontFile::TrueTypeTag: - printf ("OpenType font with TrueType outlines\n"); - break; - case OpenTypeFontFile::CFFTag: - printf ("OpenType font with CFF (Type1) outlines\n"); - break; - case OpenTypeFontFile::TTCTag: - printf ("TrueType Collection of OpenType fonts\n"); - break; - case OpenTypeFontFile::TrueTag: - printf ("Obsolete Apple TrueType font\n"); - break; - case OpenTypeFontFile::Typ1Tag: - printf ("Obsolete Apple Type1 font in SFNT container\n"); - break; - case OpenTypeFontFile::DFontTag: - printf ("DFont Mac Resource Fork\n"); - break; - default: - printf ("Unknown font format\n"); - break; - } - - unsigned num_faces = hb_face_count (blob); - printf ("%d font(s) found in file\n", num_faces); - for (unsigned n_font = 0; n_font < num_faces; ++n_font) - { - const OpenTypeFontFace &font = ot.get_face (n_font); - printf ("Font %d of %d:\n", n_font, num_faces); - - unsigned num_tables = font.get_table_count (); - printf (" %d table(s) found in font\n", num_tables); - for (unsigned n_table = 0; n_table < num_tables; ++n_table) - { - const OpenTypeTable &table = font.get_table (n_table); - printf (" Table %2d of %2d: %.4s (0x%08x+0x%08x)\n", n_table, num_tables, - (const char *) table.tag, - (unsigned) table.offset, - (unsigned) table.length); - - switch (table.tag) - { - - case HB_OT_TAG_GSUB: - case HB_OT_TAG_GPOS: - { - - const GSUBGPOS &g = *reinterpret_cast<const GSUBGPOS *> (font_data + table.offset); - - unsigned num_scripts = g.get_script_count (); - printf (" %d script(s) found in table\n", num_scripts); - for (unsigned n_script = 0; n_script < num_scripts; ++n_script) - { - const Script &script = g.get_script (n_script); - printf (" Script %2d of %2d: %.4s\n", n_script, num_scripts, - (const char *) g.get_script_tag (n_script)); - - if (!script.has_default_lang_sys ()) - printf (" No default language system\n"); - int num_langsys = script.get_lang_sys_count (); - printf (" %d language system(s) found in script\n", num_langsys); - for (int n_langsys = script.has_default_lang_sys () ? -1 : 0; n_langsys < num_langsys; ++n_langsys) - { - const LangSys &langsys = n_langsys == -1 - ? script.get_default_lang_sys () - : script.get_lang_sys (n_langsys); - if (n_langsys == -1) - printf (" Default Language System\n"); - else - printf (" Language System %2d of %2d: %.4s\n", n_langsys, num_langsys, - (const char *) script.get_lang_sys_tag (n_langsys)); - if (!langsys.has_required_feature ()) - printf (" No required feature\n"); - else - printf (" Required feature index: %d\n", - langsys.get_required_feature_index ()); - - unsigned num_features = langsys.get_feature_count (); - printf (" %d feature(s) found in language system\n", num_features); - for (unsigned n_feature = 0; n_feature < num_features; ++n_feature) - { - printf (" Feature index %2d of %2d: %d\n", n_feature, num_features, - langsys.get_feature_index (n_feature)); - } - } - } - - unsigned num_features = g.get_feature_count (); - printf (" %d feature(s) found in table\n", num_features); - for (unsigned n_feature = 0; n_feature < num_features; ++n_feature) - { - const Feature &feature = g.get_feature (n_feature); - unsigned num_lookups = feature.get_lookup_count (); - printf (" Feature %2d of %2d: %c%c%c%c\n", n_feature, num_features, - HB_UNTAG (g.get_feature_tag (n_feature))); - - printf (" %d lookup(s) found in feature\n", num_lookups); - for (unsigned n_lookup = 0; n_lookup < num_lookups; ++n_lookup) { - printf (" Lookup index %2d of %2d: %d\n", n_lookup, num_lookups, - feature.get_lookup_index (n_lookup)); - } - } - - unsigned num_lookups = g.get_lookup_count (); - printf (" %d lookup(s) found in table\n", num_lookups); - for (unsigned n_lookup = 0; n_lookup < num_lookups; ++n_lookup) - { - const Lookup &lookup = g.get_lookup (n_lookup); - printf (" Lookup %2d of %2d: type %d, props 0x%04X\n", n_lookup, num_lookups, - lookup.get_type (), lookup.get_props ()); - } - - } - break; - - case GDEF::tableTag: - { - - const GDEF &gdef = *reinterpret_cast<const GDEF *> (font_data + table.offset); - - printf (" Has %sglyph classes\n", - gdef.has_glyph_classes () ? "" : "no "); - printf (" Has %smark attachment types\n", - gdef.has_mark_attachment_types () ? "" : "no "); - printf (" Has %sattach points\n", - gdef.has_attach_points () ? "" : "no "); - printf (" Has %slig carets\n", - gdef.has_lig_carets () ? "" : "no "); - printf (" Has %smark sets\n", - gdef.has_mark_sets () ? "" : "no "); - break; - } - } - } - } -} -/* end of private API use */ -#endif - -int -main (int argc, char **argv) -{ - if (argc != 2) - { - fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]); - exit (1); - } - - hb_blob_t *blob = hb_blob_create_from_file_or_fail (argv[1]); - assert (blob); - printf ("Opened font file %s: %d bytes long\n", argv[1], hb_blob_get_length (blob)); -#ifndef MAIN_CC_NO_PRIVATE_API - print_layout_info_using_private_api (blob); -#endif -#if !defined(HB_NO_COLOR) && !defined(HB_NO_DRAW) && defined(HB_EXPERIMENTAL_API) - dump_glyphs (blob, argv[1]); -#endif - hb_blob_destroy (blob); - - return 0; -} |