134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/*
|
|
* Copyright © 2019 Ebrahim Byagowi
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "hb-ot.h"
|
|
|
|
#ifdef HB_NO_OPEN
|
|
#define hb_blob_create_from_file(x) hb_blob_get_empty ()
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
|
|
struct user_data_t
|
|
{
|
|
FILE *f;
|
|
hb_position_t ascender;
|
|
};
|
|
|
|
static void
|
|
move_to (hb_position_t to_x, hb_position_t to_y, void *user_data)
|
|
{
|
|
user_data_t u = *((user_data_t *) user_data);
|
|
fprintf (u.f, "M%d,%d", to_x, u.ascender - to_y);
|
|
}
|
|
|
|
static void
|
|
line_to (hb_position_t to_x, hb_position_t to_y, void *user_data)
|
|
{
|
|
user_data_t u = *((user_data_t *) user_data);
|
|
fprintf (u.f, "L%d,%d", to_x, u.ascender - to_y);
|
|
}
|
|
|
|
static void
|
|
conic_to (hb_position_t control_x, hb_position_t control_y,
|
|
hb_position_t to_x, hb_position_t to_y,
|
|
void *user_data)
|
|
{
|
|
user_data_t u = *((user_data_t *) user_data);
|
|
fprintf (u.f, "Q%d,%d %d,%d", control_x, u.ascender - control_y,
|
|
to_x, u.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,
|
|
void *user_data)
|
|
{
|
|
user_data_t u = *((user_data_t *) user_data);
|
|
fprintf (u.f, "C%d,%d %d,%d %d,%d", control1_x, u.ascender - control1_y,
|
|
control2_x, u.ascender - control2_y,
|
|
to_x, u.ascender - to_y);
|
|
}
|
|
|
|
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 (argv[1]);
|
|
unsigned int num_faces = hb_face_count (blob);
|
|
if (num_faces == 0)
|
|
{
|
|
fprintf (stderr, "error: The file (%s) was corrupted, empty or not found", argv[1]);
|
|
exit (1);
|
|
}
|
|
|
|
hb_ot_glyph_decompose_funcs_t funcs;
|
|
funcs.move_to = (hb_ot_glyph_decompose_move_to_func_t) move_to;
|
|
funcs.line_to = (hb_ot_glyph_decompose_line_to_func_t) line_to;
|
|
funcs.conic_to = (hb_ot_glyph_decompose_conic_to_func_t) conic_to;
|
|
funcs.cubic_to = (hb_ot_glyph_decompose_cubic_to_func_t) cubic_to;
|
|
|
|
for (unsigned int face_index = 0; face_index < hb_face_count (blob); face_index++)
|
|
{
|
|
hb_face_t *face = hb_face_create (blob, face_index);
|
|
hb_font_t *font = hb_font_create (face);
|
|
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};
|
|
hb_font_get_glyph_extents (font, gid, &extents);
|
|
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_blob_destroy (blob);
|
|
|
|
return 0;
|
|
}
|