Ebrahim Byagowi
5 years ago
parent
b72337e57e
commit
23277beef9
4 changed files with 297 additions and 508 deletions
@ -1,347 +0,0 @@ |
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/*
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* Copyright © 2018 Ebrahim Byagowi |
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* Copyright © 2018 Khaled Hosny |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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*/ |
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#include "hb.hh" |
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#ifdef HB_NO_OPEN |
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#define hb_blob_create_from_file(x) hb_blob_get_empty () |
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#endif |
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#if !defined(HB_NO_COLOR) |
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#include "hb-ot.h" |
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#include <stdlib.h> |
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#include <stdio.h> |
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static void |
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svg_dump (hb_face_t *face, unsigned int face_index) |
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{ |
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unsigned glyph_count = hb_face_get_glyph_count (face); |
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for (unsigned int glyph_id = 0; glyph_id < glyph_count; glyph_id++) |
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{ |
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hb_blob_t *blob = hb_ot_color_glyph_reference_svg (face, glyph_id); |
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if (hb_blob_get_length (blob) == 0) continue; |
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unsigned int length; |
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const char *data = hb_blob_get_data (blob, &length); |
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char output_path[255]; |
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sprintf (output_path, "out/svg-%u-%u.svg%s", |
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glyph_id, |
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face_index, |
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// append "z" if the content is gzipped, https://stackoverflow.com/a/6059405
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(length > 2 && (data[0] == '\x1F') && (data[1] == '\x8B')) ? "z" : ""); |
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FILE *f = fopen (output_path, "wb"); |
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fwrite (data, 1, length, f); |
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fclose (f); |
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hb_blob_destroy (blob); |
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} |
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} |
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/* _png API is so easy to use unlike the below code, don't get confused */ |
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static void |
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png_dump (hb_face_t *face, unsigned int face_index) |
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{ |
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unsigned glyph_count = hb_face_get_glyph_count (face); |
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hb_font_t *font = hb_font_create (face); |
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/* scans the font for strikes */ |
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unsigned int sample_glyph_id; |
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/* we don't care about different strikes for different glyphs at this point */ |
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for (sample_glyph_id = 0; sample_glyph_id < glyph_count; sample_glyph_id++) |
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{ |
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hb_blob_t *blob = hb_ot_color_glyph_reference_png (font, sample_glyph_id); |
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unsigned int blob_length = hb_blob_get_length (blob); |
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hb_blob_destroy (blob); |
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if (blob_length != 0) |
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break; |
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} |
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unsigned int upem = hb_face_get_upem (face); |
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unsigned int blob_length = 0; |
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unsigned int strike = 0; |
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for (unsigned int ppem = 1; ppem < upem; ppem++) |
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{ |
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hb_font_set_ppem (font, ppem, ppem); |
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hb_blob_t *blob = hb_ot_color_glyph_reference_png (font, sample_glyph_id); |
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unsigned int new_blob_length = hb_blob_get_length (blob); |
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hb_blob_destroy (blob); |
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if (new_blob_length != blob_length) |
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{ |
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for (unsigned int glyph_id = 0; glyph_id < glyph_count; glyph_id++) |
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{ |
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hb_blob_t *blob = hb_ot_color_glyph_reference_png (font, glyph_id); |
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if (hb_blob_get_length (blob) == 0) continue; |
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unsigned int length; |
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const char *data = hb_blob_get_data (blob, &length); |
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char output_path[255]; |
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sprintf (output_path, "out/png-%u-%u-%u.png", glyph_id, strike, face_index); |
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FILE *f = fopen (output_path, "wb"); |
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fwrite (data, 1, length, f); |
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fclose (f); |
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hb_blob_destroy (blob); |
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} |
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strike++; |
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blob_length = new_blob_length; |
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} |
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} |
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hb_font_destroy (font); |
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} |
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struct user_data_t |
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{ |
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FILE *f; |
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hb_position_t ascender; |
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}; |
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static void |
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move_to (hb_position_t to_x, hb_position_t to_y, user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "M%d,%d", to_x, user_data.ascender - to_y); |
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} |
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static void |
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line_to (hb_position_t to_x, hb_position_t to_y, user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "L%d,%d", to_x, user_data.ascender - to_y); |
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} |
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static void |
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conic_to (hb_position_t control_x, hb_position_t control_y, |
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hb_position_t to_x, hb_position_t to_y, |
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user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "Q%d,%d %d,%d", control_x, user_data.ascender - control_y, |
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to_x, user_data.ascender - to_y); |
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} |
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static void |
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cubic_to (hb_position_t control1_x, hb_position_t control1_y, |
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hb_position_t control2_x, hb_position_t control2_y, |
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hb_position_t to_x, hb_position_t to_y, |
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user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "C%d,%d %d,%d %d,%d", control1_x, user_data.ascender - control1_y, |
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control2_x, user_data.ascender - control2_y, |
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to_x, user_data.ascender - to_y); |
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} |
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static void |
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close_path (user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "Z"); |
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} |
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static void |
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layered_glyph_dump (hb_font_t *font, hb_ot_glyph_decompose_funcs_t *funcs, unsigned int face_index) |
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{ |
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hb_face_t *face = hb_font_get_face (font); |
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unsigned num_glyphs = hb_face_get_glyph_count (face); |
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for (hb_codepoint_t gid = 0; gid < num_glyphs; ++gid) |
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{ |
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unsigned int num_layers = hb_ot_color_glyph_get_layers (face, gid, 0, nullptr, nullptr); |
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if (!num_layers) continue; |
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hb_ot_color_layer_t *layers = (hb_ot_color_layer_t*) malloc (num_layers * sizeof (hb_ot_color_layer_t)); |
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hb_ot_color_glyph_get_layers (face, gid, 0, &num_layers, layers); |
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if (num_layers) |
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{ |
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hb_font_extents_t font_extents; |
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hb_font_get_extents_for_direction (font, HB_DIRECTION_LTR, &font_extents); |
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hb_glyph_extents_t extents = {0}; |
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if (!hb_font_get_glyph_extents (font, gid, &extents)) |
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{ |
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printf ("Skip gid: %d\n", gid); |
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continue; |
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} |
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unsigned int palette_count = hb_ot_color_palette_get_count (face); |
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for (unsigned int palette = 0; palette < palette_count; ++palette) |
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{ |
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unsigned int num_colors = hb_ot_color_palette_get_colors (face, palette, 0, nullptr, nullptr); |
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if (!num_colors) |
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continue; |
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char output_path[255]; |
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sprintf (output_path, "out/colr-%u-%u-%u.svg", gid, palette, face_index); |
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FILE *f = fopen (output_path, "wb"); |
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fprintf (f, "<svg xmlns=\"http://www.w3.org/2000/svg\"" |
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" viewBox=\"%d %d %d %d\">\n", |
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extents.x_bearing, 0, |
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extents.x_bearing + extents.width, -extents.height); |
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user_data_t user_data; |
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user_data.ascender = extents.y_bearing; |
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user_data.f = f; |
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hb_color_t *colors = (hb_color_t*) calloc (num_colors, sizeof (hb_color_t)); |
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hb_ot_color_palette_get_colors (face, palette, 0, &num_colors, colors); |
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if (num_colors) |
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{ |
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for (unsigned int layer = 0; layer < num_layers; ++layer) |
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{ |
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hb_color_t color = 0x000000FF; |
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if (layers[layer].color_index != 0xFFFF) |
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color = colors[layers[layer].color_index]; |
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fprintf (f, "<path fill=\"#%02X%02X%02X\" ", |
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hb_color_get_red (color), hb_color_get_green (color), hb_color_get_green (color)); |
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if (hb_color_get_alpha (color) != 255) |
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fprintf (f, "fill-opacity=\"%.3f\"", (double) hb_color_get_alpha (color) / 255.); |
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fprintf (f, "d=\""); |
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if (!hb_ot_glyph_decompose (font, layers[layer].glyph, funcs, &user_data)) |
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printf ("Failed to decompose layer %d while %d\n", layers[layer].glyph, gid); |
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fprintf (f, "\"/>\n"); |
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} |
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} |
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free (colors); |
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fprintf (f, "</svg>"); |
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fclose (f); |
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} |
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} |
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free (layers); |
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} |
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} |
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static void |
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dump_glyphs (hb_font_t *font, hb_ot_glyph_decompose_funcs_t *funcs, unsigned int face_index) |
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{ |
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unsigned num_glyphs = hb_face_get_glyph_count (hb_font_get_face (font)); |
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for (unsigned int gid = 0; gid < num_glyphs; ++gid) |
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{ |
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hb_font_extents_t font_extents; |
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hb_font_get_extents_for_direction (font, HB_DIRECTION_LTR, &font_extents); |
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hb_glyph_extents_t extents = {0}; |
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if (!hb_font_get_glyph_extents (font, gid, &extents)) |
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{ |
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printf ("Skip gid: %d\n", gid); |
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continue; |
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} |
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char output_path[255]; |
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sprintf (output_path, "out/%u-%u.svg", face_index, gid); |
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FILE *f = fopen (output_path, "wb"); |
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fprintf (f, "<svg xmlns=\"http://www.w3.org/2000/svg\"" |
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" viewBox=\"%d %d %d %d\"><path d=\"", |
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extents.x_bearing, 0, |
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extents.x_bearing + extents.width, font_extents.ascender - font_extents.descender); |
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user_data_t user_data; |
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user_data.ascender = font_extents.ascender; |
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user_data.f = f; |
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if (!hb_ot_glyph_decompose (font, gid, funcs, &user_data)) |
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printf ("Failed to decompose gid: %d\n", gid); |
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fprintf (f, "\"/></svg>"); |
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fclose (f); |
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} |
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} |
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int |
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main (int argc, char **argv) |
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{ |
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if (argc != 2) { |
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fprintf (stderr, "usage: %s font-file.ttf\n" |
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"run it like `rm -rf out && mkdir out && %s font-file.ttf`\n", |
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argv[0], argv[0]); |
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exit (1); |
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} |
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FILE *font_name_file = fopen ("out/.dumped_font_name", "r"); |
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if (font_name_file != nullptr) |
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{ |
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fprintf (stderr, "Purge or move ./out folder in order to run a new dump\n"); |
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exit (1); |
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} |
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font_name_file = fopen ("out/.dumped_font_name", "w"); |
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if (font_name_file == nullptr) |
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{ |
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fprintf (stderr, "./out is not accessible as a folder, create it please\n"); |
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exit (1); |
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} |
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fwrite (argv[1], 1, strlen (argv[1]), font_name_file); |
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fclose (font_name_file); |
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hb_blob_t *blob = hb_blob_create_from_file (argv[1]); |
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unsigned int num_faces = hb_face_count (blob); |
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if (num_faces == 0) |
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{ |
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fprintf (stderr, "error: The file (%s) was corrupted, empty or not found", argv[1]); |
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exit (1); |
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} |
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hb_ot_glyph_decompose_funcs_t *funcs = hb_ot_glyph_decompose_funcs_create (); |
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hb_ot_glyph_decompose_funcs_set_move_to_func (funcs, (hb_ot_glyph_decompose_move_to_func_t) move_to); |
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hb_ot_glyph_decompose_funcs_set_line_to_func (funcs, (hb_ot_glyph_decompose_line_to_func_t) line_to); |
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hb_ot_glyph_decompose_funcs_set_conic_to_func (funcs, (hb_ot_glyph_decompose_conic_to_func_t) conic_to); |
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hb_ot_glyph_decompose_funcs_set_cubic_to_func (funcs, (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to); |
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hb_ot_glyph_decompose_funcs_set_close_path_func (funcs, (hb_ot_glyph_decompose_close_path_func_t) close_path); |
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for (unsigned int face_index = 0; face_index < hb_face_count (blob); face_index++) |
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{ |
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hb_face_t *face = hb_face_create (blob, face_index); |
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hb_font_t *font = hb_font_create (face); |
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if (hb_ot_color_has_png (face)) |
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printf ("Dumping png (CBDT/sbix)...\n"); |
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png_dump (face, face_index); |
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if (hb_ot_color_has_svg (face)) |
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printf ("Dumping svg (SVG )...\n"); |
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svg_dump (face, face_index); |
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if (hb_ot_color_has_layers (face) && hb_ot_color_has_palettes (face)) |
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printf ("Dumping layered color glyphs (COLR/CPAL)...\n"); |
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layered_glyph_dump (font, funcs, face_index); |
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dump_glyphs (font, funcs, face_index); |
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hb_font_destroy (font); |
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hb_face_destroy (face); |
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} |
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hb_ot_glyph_decompose_funcs_destroy (funcs); |
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hb_blob_destroy (blob); |
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return 0; |
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} |
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#else |
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int main (int argc, char **argv) { return 0; } |
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#endif |
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@ -1,143 +0,0 @@ |
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/*
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* Copyright © 2019 Ebrahim Byagowi |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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*/ |
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#include "hb-ot.h" |
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#ifdef HB_NO_OPEN |
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#define hb_blob_create_from_file(x) hb_blob_get_empty () |
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#endif |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <assert.h> |
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struct user_data_t |
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{ |
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FILE *f; |
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hb_position_t ascender; |
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}; |
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static void |
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move_to (hb_position_t to_x, hb_position_t to_y, user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "M%d,%d", to_x, user_data.ascender - to_y); |
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} |
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static void |
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line_to (hb_position_t to_x, hb_position_t to_y, user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "L%d,%d", to_x, user_data.ascender - to_y); |
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} |
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static void |
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conic_to (hb_position_t control_x, hb_position_t control_y, |
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hb_position_t to_x, hb_position_t to_y, |
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user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "Q%d,%d %d,%d", control_x, user_data.ascender - control_y, |
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to_x, user_data.ascender - to_y); |
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} |
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static void |
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cubic_to (hb_position_t control1_x, hb_position_t control1_y, |
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hb_position_t control2_x, hb_position_t control2_y, |
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hb_position_t to_x, hb_position_t to_y, |
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user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "C%d,%d %d,%d %d,%d", control1_x, user_data.ascender - control1_y, |
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control2_x, user_data.ascender - control2_y, |
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to_x, user_data.ascender - to_y); |
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} |
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static void |
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close_path (user_data_t &user_data) |
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{ |
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fprintf (user_data.f, "Z"); |
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} |
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int |
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main (int argc, char **argv) |
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{ |
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if (argc != 2) |
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{ |
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fprintf (stderr, "usage: %s font-file.ttf\n", argv[0]); |
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exit (1); |
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} |
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hb_blob_t *blob = hb_blob_create_from_file (argv[1]); |
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unsigned int num_faces = hb_face_count (blob); |
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if (num_faces == 0) |
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{ |
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fprintf (stderr, "error: The file (%s) was corrupted, empty or not found", argv[1]); |
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exit (1); |
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} |
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hb_ot_glyph_decompose_funcs_t *funcs = hb_ot_glyph_decompose_funcs_create (); |
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hb_ot_glyph_decompose_funcs_set_move_to_func (funcs, (hb_ot_glyph_decompose_move_to_func_t) move_to); |
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hb_ot_glyph_decompose_funcs_set_line_to_func (funcs, (hb_ot_glyph_decompose_line_to_func_t) line_to); |
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hb_ot_glyph_decompose_funcs_set_conic_to_func (funcs, (hb_ot_glyph_decompose_conic_to_func_t) conic_to); |
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hb_ot_glyph_decompose_funcs_set_cubic_to_func (funcs, (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to); |
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hb_ot_glyph_decompose_funcs_set_close_path_func (funcs, (hb_ot_glyph_decompose_close_path_func_t) close_path); |
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for (unsigned int face_index = 0; face_index < hb_face_count (blob); face_index++) |
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{ |
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hb_face_t *face = hb_face_create (blob, face_index); |
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hb_font_t *font = hb_font_create (face); |
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unsigned int glyph_count = hb_face_get_glyph_count (face); |
||||
for (unsigned int gid = 0; gid < glyph_count; ++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 name[100]; |
||||
sprintf (name, "%d.svg", gid); |
||||
FILE *f = fopen (name, "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); //-extents.height);
|
||||
user_data_t user_data; |
||||
user_data.ascender = font_extents.ascender; |
||||
user_data.f = f; |
||||
if (!hb_ot_glyph_decompose (font, gid, funcs, &user_data)) |
||||
printf ("Failed to decompose gid: %d\n", gid); |
||||
fprintf (f, "\"/></svg>"); |
||||
fclose (f); |
||||
} |
||||
hb_font_destroy (font); |
||||
hb_face_destroy (face); |
||||
} |
||||
|
||||
hb_ot_glyph_decompose_funcs_destroy (funcs); |
||||
|
||||
hb_blob_destroy (blob); |
||||
|
||||
return 0; |
||||
} |
||||
Loading…
Reference in new issue