fdo-mirrors/cairo
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/cairo/cairo.git synced 2026-01-14 22:00:22 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Implement has_color_glyphs for freetype

Browse source 
This information is available from the FT_Face using the
FT_HAS_COLOR macro. We cache the value in the unscaled_font
object as soon as we have an FT_Face.
This commit is contained in:
Matthias Clasen 2016-04-08 13:20:56 -04:00 • committed by Behdad Esfahbod
parent 6622845653
commit 6a8a25cc47
1 changed files with 27 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
src/cairo-ft-font.c
View file

@ -169,6 +169,9 @@ struct _cairo_ft_unscaled_font {
cairo_matrix_t current_shape;
FT_Matrix Current_Shape;
unsigned int have_color_set : 1;
unsigned int have_color : 1; /* true if the font contains color glyphs */
cairo_mutex_t mutex;
int lock_count;
@ -426,6 +429,9 @@ _cairo_ft_unscaled_font_init (cairo_ft_unscaled_font_t *unscaled,
if (from_face) {
unscaled->from_face = TRUE;
_cairo_ft_unscaled_font_init_key (unscaled, TRUE, NULL, 0, face);
unscaled->have_color = FT_HAS_COLOR (face) != 0;
unscaled->have_color_set = TRUE;
} else {
char *filename_copy;
@ -437,6 +443,8 @@ _cairo_ft_unscaled_font_init (cairo_ft_unscaled_font_t *unscaled,
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
_cairo_ft_unscaled_font_init_key (unscaled, FALSE, filename_copy, id, NULL);
unscaled->have_color_set = FALSE;
}
unscaled->have_scale = FALSE;
@ -704,6 +712,9 @@ _cairo_ft_unscaled_font_lock_face (cairo_ft_unscaled_font_t *unscaled)
unscaled->face = face;
unscaled->have_color = FT_HAS_COLOR (face) != 0;
unscaled->have_color_set = TRUE;
font_map->num_open_faces++;
return face;
@ -2826,6 +2837,20 @@ _cairo_ft_load_type1_data (void *abstract_font,
return status;
}
static cairo_bool_t
_cairo_ft_has_color_glyphs (void *scaled)
{
cairo_ft_unscaled_font_t *unscaled = ((cairo_ft_scaled_font_t *)scaled)->unscaled;
if (!unscaled->have_color_set) {
FT_Face face;
face = _cairo_ft_unscaled_font_lock_face (unscaled);
_cairo_ft_unscaled_font_unlock_face (unscaled);
}
return unscaled->have_color;
}
static const cairo_scaled_font_backend_t _cairo_ft_scaled_font_backend = {
CAIRO_FONT_TYPE_FT,
_cairo_ft_scaled_font_fini,
@ -2836,7 +2861,8 @@ static const cairo_scaled_font_backend_t _cairo_ft_scaled_font_backend = {
_cairo_ft_index_to_ucs4,
_cairo_ft_is_synthetic,
_cairo_index_to_glyph_name,
_cairo_ft_load_type1_data
_cairo_ft_load_type1_data,
_cairo_ft_has_color_glyphs
};
/* #cairo_ft_font_face_t */