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[util] Add --face-loader

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Currently crashes with ft. Investigating.
This commit is contained in:
Behdad Esfahbod 2024-10-13 14:20:27 -06:00
parent 75d168cbf4
commit 67591f8511
1 changed files with 76 additions and 2 deletions
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78
util/face-options.hh
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@ -29,10 +29,18 @@
#include "options.hh"
#ifdef HAVE_FREETYPE
#include <hb-ft.h>
#endif
#ifdef HAVE_CORETEXT
#include <hb-coretext.h>
#endif
struct face_options_t
{
~face_options_t ()
{
g_free (face_loader);
g_free (font_file);
}
@ -58,6 +66,7 @@ struct face_options_t
char *font_file = nullptr;
unsigned face_index = 0;
char *face_loader = nullptr;
hb_face_t *face = nullptr;
};
@ -65,6 +74,20 @@ struct face_options_t
face_options_t::cache_t face_options_t::cache {};
static struct supported_face_loaders_t {
char name[9];
hb_face_t * (*func) (const char *font_file, unsigned face_index);
} supported_face_loaders[] =
{
{"ot", hb_face_create_from_file_or_fail},
#ifdef HAVE_FREETYPE
{"ft", hb_ft_face_create_from_file_or_fail},
#endif
#ifdef HAVE_CORETEXT
{"coretext", hb_coretext_face_create_from_file_or_fail},
#endif
};
void
face_options_t::post_parse (GError **error)
{
@ -89,13 +112,46 @@ face_options_t::post_parse (GError **error)
#endif
}
hb_face_t * (*face_load) (const char *file_name, unsigned face_index) = nullptr;
if (!face_loader)
{
face_load = supported_face_loaders[0].func;
}
else
{
for (unsigned int i = 0; i < ARRAY_LENGTH (supported_face_loaders); i++)
if (0 == g_ascii_strcasecmp (face_loader, supported_face_loaders[i].name))
{
face_load = supported_face_loaders[i].func;
break;
}
if (!face_load)
{
GString *s = g_string_new (nullptr);
for (unsigned int i = 0; i < ARRAY_LENGTH (supported_face_loaders); i++)
{
if (i)
g_string_append_c (s, '/');
g_string_append (s, supported_face_loaders[i].name);
}
g_string_append_c (s, '\n');
char *p = g_string_free (s, FALSE);
g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
"Unknown face loader `%s'; supported values are: %s; default is %s",
face_loader,
p,
supported_face_loaders[0].name);
free (p);
return;
}
}
if (!cache.font_path ||
0 != strcmp (cache.font_path, font_path) ||
cache.face_index != face_index)
{
hb_face_destroy (cache.face);
cache.face = hb_face_create_from_file_or_fail (font_path,
face_index);
cache.face = face_load (font_path, face_index);
cache.face_index = face_index;
free ((char *) cache.font_path);
@ -115,10 +171,28 @@ face_options_t::post_parse (GError **error)
void
face_options_t::add_options (option_parser_t *parser)
{
char *face_loaders_text = nullptr;
{
static_assert ((ARRAY_LENGTH_CONST (supported_face_loaders) > 0),
"No supported face-loaders found.");
GString *s = g_string_new (nullptr);
g_string_printf (s, "Set face loader to use (default: %s)\n\n Supported face loaders are: %s",
supported_face_loaders[0].name,
supported_face_loaders[0].name);
for (unsigned int i = 1; i < ARRAY_LENGTH (supported_face_loaders); i++)
{
g_string_append_c (s, '/');
g_string_append (s, supported_face_loaders[i].name);
}
face_loaders_text = g_string_free (s, FALSE);
parser->free_later (face_loaders_text);
}
GOptionEntry entries[] =
{
{"font-file", 0, 0, G_OPTION_ARG_STRING, &this->font_file, "Set font file-name", "filename"},
{"face-index", 'y', 0, G_OPTION_ARG_INT, &this->face_index, "Set face index (default: 0)", "index"},
{"face-loader", 0, 0, G_OPTION_ARG_STRING, &this->face_loader, face_loaders_text, "loader"},
{nullptr}
};
parser->add_group (entries,