fz_font *
fz_new_font_from_memory(fz_context *ctx, char *name, unsigned char *data, int len, int index, int use_glyph_bbox)
{
FT_Face face;
fz_font *font;
int fterr;
fz_keep_freetype(ctx);
fz_lock(ctx, FZ_LOCK_FREETYPE);
fterr = FT_New_Memory_Face(ctx->font->ftlib, data, len, index, &face);
fz_unlock(ctx, FZ_LOCK_FREETYPE);
if (fterr)
{
fz_drop_freetype(ctx);
fz_throw(ctx, FZ_ERROR_GENERIC, "freetype: cannot load font: %s", ft_error_string(fterr));
}
if (!name)
name = face->family_name;
font = fz_new_font(ctx, name, use_glyph_bbox, face->num_glyphs);
font->ft_face = face;
fz_set_font_bbox(ctx, font,
(float) face->bbox.xMin / face->units_per_EM,
(float) face->bbox.yMin / face->units_per_EM,
(float) face->bbox.xMax / face->units_per_EM,
(float) face->bbox.yMax / face->units_per_EM);
return font;
}
fz_font *
fz_new_font_from_file(fz_context *ctx, char *name, char *path, int index, int use_glyph_bbox)
{
FT_Face face;
fz_font *font;
int fterr;
fz_keep_freetype(ctx);
fz_lock(ctx, FZ_LOCK_FREETYPE);
fterr = FT_New_Face(ctx->font->ftlib, path, index, &face);
fz_unlock(ctx, FZ_LOCK_FREETYPE);
if (fterr)
{
fz_drop_freetype(ctx);
fz_throw(ctx, "freetype: cannot load font: %s", ft_error_string(fterr));
}
fz_check_font_dimensions(face);
if (!name)
name = face->family_name;
font = fz_new_font(ctx, name, use_glyph_bbox, face->num_glyphs);
font->ft_face = face;
font->bbox.x0 = (float) face->bbox.xMin / face->units_per_EM;
font->bbox.y0 = (float) face->bbox.yMin / face->units_per_EM;
font->bbox.x1 = (float) face->bbox.xMax / face->units_per_EM;
font->bbox.y1 = (float) face->bbox.yMax / face->units_per_EM;
return font;
}
void
fz_drop_font(fz_context *ctx, fz_font *font)
{
int fterr;
int i, drop;
fz_lock(ctx, FZ_LOCK_ALLOC);
drop = (font && --font->refs == 0);
fz_unlock(ctx, FZ_LOCK_ALLOC);
if (!drop)
return;
if (font->t3procs)
{
if (font->t3resources)
font->t3freeres(font->t3doc, font->t3resources);
for (i = 0; i < 256; i++)
{
if (font->t3procs[i])
fz_drop_buffer(ctx, font->t3procs[i]);
if (font->t3lists[i])
fz_free_display_list(ctx, font->t3lists[i]);
}
fz_free(ctx, font->t3procs);
fz_free(ctx, font->t3lists);
fz_free(ctx, font->t3widths);
fz_free(ctx, font->t3flags);
}
if (font->ft_face)
{
fz_lock(ctx, FZ_LOCK_FREETYPE);
fterr = FT_Done_Face((FT_Face)font->ft_face);
fz_unlock(ctx, FZ_LOCK_FREETYPE);
if (fterr)
fz_warn(ctx, "freetype finalizing face: %s", ft_error_string(fterr));
fz_drop_freetype(ctx);
}
fz_free(ctx, font->ft_file);
fz_free(ctx, font->ft_data);
fz_free(ctx, font->bbox_table);
fz_free(ctx, font->width_table);
fz_free(ctx, font);
}
