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src/java.desktop/share/native/libfontmanager/harfbuzz/hb-face.cc
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*** 24,89 ****
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
! #include "hb-private.hh"
!
! #include "hb-face-private.hh"
! #include "hb-blob-private.hh"
! #include "hb-open-file-private.hh"
! #include "hb-ot-head-table.hh"
! #include "hb-ot-maxp-table.hh"
/**
! * hb_face_count: Get number of faces on the blob
! * @blob:
*
*
*
! * Return value: Number of faces on the blob
*
* Since: 1.7.7
**/
unsigned int
hb_face_count (hb_blob_t *blob)
{
if (unlikely (!blob))
return 0;
! hb_blob_t *sanitized = OT::Sanitizer<OT::OpenTypeFontFile> ().sanitize (blob);
const OT::OpenTypeFontFile& ot = *sanitized->as<OT::OpenTypeFontFile> ();
! return ot.get_face_count ();
}
/*
* hb_face_t
*/
! const hb_face_t _hb_face_nil = {
HB_OBJECT_HEADER_STATIC,
- true, /* immutable */
-
nullptr, /* reference_table_func */
nullptr, /* user_data */
nullptr, /* destroy */
0, /* index */
! 1000, /* upem */
! 0, /* num_glyphs */
! {
! #define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
! #include "hb-shaper-list.hh"
! #undef HB_SHAPER_IMPLEMENT
! },
!
! nullptr, /* shape_plans */
};
/**
* hb_face_create_for_tables:
--- 24,98 ----
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
! #include "hb.hh"
+ #include "hb-face.hh"
+ #include "hb-blob.hh"
+ #include "hb-open-file.hh"
+ #include "hb-ot-face.hh"
+ #include "hb-ot-cmap-table.hh"
/**
! * SECTION:hb-face
! * @title: hb-face
! * @short_description: Font face objects
! * @include: hb.h
*
+ * Font face is objects represent a single face in a font family.
+ * More exactly, a font face represents a single face in a binary font file.
+ * Font faces are typically built from a binary blob and a face index.
+ * Font faces are used to create fonts.
+ **/
+
+
+ /**
+ * hb_face_count:
+ * @blob: a blob.
*
+ * Get number of faces in a blob.
*
! * Return value: Number of faces in @blob
*
* Since: 1.7.7
**/
unsigned int
hb_face_count (hb_blob_t *blob)
{
if (unlikely (!blob))
return 0;
! /* TODO We shouldn't be sanitizing blob. Port to run sanitizer and return if not sane. */
! /* Make API signature const after. */
! hb_blob_t *sanitized = hb_sanitize_context_t ().sanitize_blob<OT::OpenTypeFontFile> (hb_blob_reference (blob));
const OT::OpenTypeFontFile& ot = *sanitized->as<OT::OpenTypeFontFile> ();
+ unsigned int ret = ot.get_face_count ();
+ hb_blob_destroy (sanitized);
! return ret;
}
/*
* hb_face_t
*/
! DEFINE_NULL_INSTANCE (hb_face_t) =
! {
HB_OBJECT_HEADER_STATIC,
nullptr, /* reference_table_func */
nullptr, /* user_data */
nullptr, /* destroy */
0, /* index */
! HB_ATOMIC_INT_INIT (1000), /* upem */
! HB_ATOMIC_INT_INIT (0), /* num_glyphs */
! /* Zero for the rest is fine. */
};
/**
* hb_face_create_for_tables:
*** 112,123 ****
face->reference_table_func = reference_table_func;
face->user_data = user_data;
face->destroy = destroy;
! face->upem = 0;
! face->num_glyphs = (unsigned int) -1;
return face;
}
--- 121,134 ----
face->reference_table_func = reference_table_func;
face->user_data = user_data;
face->destroy = destroy;
! face->num_glyphs.set_relaxed (-1);
!
! face->data.init0 (face);
! face->table.init0 (face);
return face;
}
*** 157,171 ****
if (tag == HB_TAG_NONE)
return hb_blob_reference (data->blob);
const OT::OpenTypeFontFile &ot_file = *data->blob->as<OT::OpenTypeFontFile> ();
! const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index);
const OT::OpenTypeTable &table = ot_face.get_table_by_tag (tag);
! hb_blob_t *blob = hb_blob_create_sub_blob (data->blob, table.offset, table.length);
return blob;
}
/**
--- 168,183 ----
if (tag == HB_TAG_NONE)
return hb_blob_reference (data->blob);
const OT::OpenTypeFontFile &ot_file = *data->blob->as<OT::OpenTypeFontFile> ();
! unsigned int base_offset;
! const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index, &base_offset);
const OT::OpenTypeTable &table = ot_face.get_table_by_tag (tag);
! hb_blob_t *blob = hb_blob_create_sub_blob (data->blob, base_offset + table.offset, table.length);
return blob;
}
/**
*** 186,196 ****
hb_face_t *face;
if (unlikely (!blob))
blob = hb_blob_get_empty ();
! hb_face_for_data_closure_t *closure = _hb_face_for_data_closure_create (OT::Sanitizer<OT::OpenTypeFontFile>().sanitize (hb_blob_reference (blob)), index);
if (unlikely (!closure))
return hb_face_get_empty ();
face = hb_face_create_for_tables (_hb_face_for_data_reference_table,
--- 198,208 ----
hb_face_t *face;
if (unlikely (!blob))
blob = hb_blob_get_empty ();
! hb_face_for_data_closure_t *closure = _hb_face_for_data_closure_create (hb_sanitize_context_t ().sanitize_blob<OT::OpenTypeFontFile> (hb_blob_reference (blob)), index);
if (unlikely (!closure))
return hb_face_get_empty ();
face = hb_face_create_for_tables (_hb_face_for_data_reference_table,
*** 210,222 ****
* Return value: (transfer full)
*
* Since: 0.9.2
**/
hb_face_t *
! hb_face_get_empty (void)
{
! return const_cast<hb_face_t *> (&_hb_face_nil);
}
/**
* hb_face_reference: (skip)
--- 222,234 ----
* Return value: (transfer full)
*
* Since: 0.9.2
**/
hb_face_t *
! hb_face_get_empty ()
{
! return const_cast<hb_face_t *> (&Null(hb_face_t));
}
/**
* hb_face_reference: (skip)
*** 253,265 ****
hb_shape_plan_destroy (node->shape_plan);
free (node);
node = next;
}
! #define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, face);
! #include "hb-shaper-list.hh"
! #undef HB_SHAPER_IMPLEMENT
if (face->destroy)
face->destroy (face->user_data);
free (face);
--- 265,276 ----
hb_shape_plan_destroy (node->shape_plan);
free (node);
node = next;
}
! face->data.fini ();
! face->table.fini ();
if (face->destroy)
face->destroy (face->user_data);
free (face);
*** 299,309 ****
* Return value: (transfer none):
*
* Since: 0.9.2
**/
void *
! hb_face_get_user_data (hb_face_t *face,
hb_user_data_key_t *key)
{
return hb_object_get_user_data (face, key);
}
--- 310,320 ----
* Return value: (transfer none):
*
* Since: 0.9.2
**/
void *
! hb_face_get_user_data (const hb_face_t *face,
hb_user_data_key_t *key)
{
return hb_object_get_user_data (face, key);
}
*** 316,329 ****
* Since: 0.9.2
**/
void
hb_face_make_immutable (hb_face_t *face)
{
! if (unlikely (hb_object_is_inert (face)))
return;
! face->immutable = true;
}
/**
* hb_face_is_immutable:
* @face: a face.
--- 327,340 ----
* Since: 0.9.2
**/
void
hb_face_make_immutable (hb_face_t *face)
{
! if (hb_object_is_immutable (face))
return;
! hb_object_make_immutable (face);
}
/**
* hb_face_is_immutable:
* @face: a face.
*** 333,345 ****
* Return value:
*
* Since: 0.9.2
**/
hb_bool_t
! hb_face_is_immutable (hb_face_t *face)
{
! return face->immutable;
}
/**
* hb_face_reference_table:
--- 344,356 ----
* Return value:
*
* Since: 0.9.2
**/
hb_bool_t
! hb_face_is_immutable (const hb_face_t *face)
{
! return hb_object_is_immutable (face);
}
/**
* hb_face_reference_table:
*** 351,361 ****
* Return value: (transfer full):
*
* Since: 0.9.2
**/
hb_blob_t *
! hb_face_reference_table (hb_face_t *face,
hb_tag_t tag)
{
return face->reference_table (tag);
}
--- 362,372 ----
* Return value: (transfer full):
*
* Since: 0.9.2
**/
hb_blob_t *
! hb_face_reference_table (const hb_face_t *face,
hb_tag_t tag)
{
return face->reference_table (tag);
}
*** 386,396 ****
**/
void
hb_face_set_index (hb_face_t *face,
unsigned int index)
{
! if (face->immutable)
return;
face->index = index;
}
--- 397,407 ----
**/
void
hb_face_set_index (hb_face_t *face,
unsigned int index)
{
! if (hb_object_is_immutable (face))
return;
face->index = index;
}
*** 403,413 ****
* Return value:
*
* Since: 0.9.2
**/
unsigned int
! hb_face_get_index (hb_face_t *face)
{
return face->index;
}
/**
--- 414,424 ----
* Return value:
*
* Since: 0.9.2
**/
unsigned int
! hb_face_get_index (const hb_face_t *face)
{
return face->index;
}
/**
*** 421,434 ****
**/
void
hb_face_set_upem (hb_face_t *face,
unsigned int upem)
{
! if (face->immutable)
return;
! face->upem = upem;
}
/**
* hb_face_get_upem:
* @face: a face.
--- 432,445 ----
**/
void
hb_face_set_upem (hb_face_t *face,
unsigned int upem)
{
! if (hb_object_is_immutable (face))
return;
! face->upem.set_relaxed (upem);
}
/**
* hb_face_get_upem:
* @face: a face.
*** 438,461 ****
* Return value:
*
* Since: 0.9.2
**/
unsigned int
! hb_face_get_upem (hb_face_t *face)
{
return face->get_upem ();
}
- void
- hb_face_t::load_upem (void) const
- {
- hb_blob_t *head_blob = OT::Sanitizer<OT::head>().sanitize (reference_table (HB_OT_TAG_head));
- const OT::head *head_table = head_blob->as<OT::head> ();
- upem = head_table->get_upem ();
- hb_blob_destroy (head_blob);
- }
-
/**
* hb_face_set_glyph_count:
* @face: a face.
* @glyph_count:
*
--- 449,463 ----
* Return value:
*
* Since: 0.9.2
**/
unsigned int
! hb_face_get_upem (const hb_face_t *face)
{
return face->get_upem ();
}
/**
* hb_face_set_glyph_count:
* @face: a face.
* @glyph_count:
*
*** 465,478 ****
**/
void
hb_face_set_glyph_count (hb_face_t *face,
unsigned int glyph_count)
{
! if (face->immutable)
return;
! face->num_glyphs = glyph_count;
}
/**
* hb_face_get_glyph_count:
* @face: a face.
--- 467,480 ----
**/
void
hb_face_set_glyph_count (hb_face_t *face,
unsigned int glyph_count)
{
! if (hb_object_is_immutable (face))
return;
! face->num_glyphs.set_relaxed (glyph_count);
}
/**
* hb_face_get_glyph_count:
* @face: a face.
*** 482,517 ****
* Return value:
*
* Since: 0.9.7
**/
unsigned int
! hb_face_get_glyph_count (hb_face_t *face)
{
return face->get_num_glyphs ();
}
- void
- hb_face_t::load_num_glyphs (void) const
- {
- hb_blob_t *maxp_blob = OT::Sanitizer<OT::maxp>().sanitize (reference_table (HB_OT_TAG_maxp));
- const OT::maxp *maxp_table = maxp_blob->as<OT::maxp> ();
- num_glyphs = maxp_table->get_num_glyphs ();
- hb_blob_destroy (maxp_blob);
- }
-
/**
* hb_face_get_table_tags:
* @face: a face.
*
* Retrieves table tags for a face, if possible.
*
* Return value: total number of tables, or 0 if not possible to list.
*
* Since: 1.6.0
**/
unsigned int
! hb_face_get_table_tags (hb_face_t *face,
unsigned int start_offset,
unsigned int *table_count, /* IN/OUT */
hb_tag_t *table_tags /* OUT */)
{
if (face->destroy != (hb_destroy_func_t) _hb_face_for_data_closure_destroy)
--- 484,513 ----
* Return value:
*
* Since: 0.9.7
**/
unsigned int
! hb_face_get_glyph_count (const hb_face_t *face)
{
return face->get_num_glyphs ();
}
/**
* hb_face_get_table_tags:
* @face: a face.
+ * @start_offset: index of first tag to return.
+ * @table_count: input length of @table_tags array, output number of items written.
+ * @table_tags: array to write tags into.
*
* Retrieves table tags for a face, if possible.
*
* Return value: total number of tables, or 0 if not possible to list.
*
* Since: 1.6.0
**/
unsigned int
! hb_face_get_table_tags (const hb_face_t *face,
unsigned int start_offset,
unsigned int *table_count, /* IN/OUT */
hb_tag_t *table_tags /* OUT */)
{
if (face->destroy != (hb_destroy_func_t) _hb_face_for_data_closure_destroy)
*** 526,530 ****
--- 522,723 ----
const OT::OpenTypeFontFile &ot_file = *data->blob->as<OT::OpenTypeFontFile> ();
const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index);
return ot_face.get_table_tags (start_offset, table_count, table_tags);
}
+
+
+ /*
+ * Character set.
+ */
+
+
+ /**
+ * hb_face_collect_unicodes:
+ * @face: font face.
+ * @out: set to add Unicode characters covered by @face to.
+ *
+ * Since: 1.9.0
+ */
+ void
+ hb_face_collect_unicodes (hb_face_t *face,
+ hb_set_t *out)
+ {
+ face->table.cmap->collect_unicodes (out);
+ }
+
+ /**
+ * hb_face_collect_variation_selectors:
+ * @face: font face.
+ * @out: set to add Variation Selector characters covered by @face to.
+ *
+ *
+ *
+ * Since: 1.9.0
+ */
+ void
+ hb_face_collect_variation_selectors (hb_face_t *face,
+ hb_set_t *out)
+ {
+ face->table.cmap->collect_variation_selectors (out);
+ }
+
+ /**
+ * hb_face_collect_variation_unicodes:
+ * @face: font face.
+ * @out: set to add Unicode characters for @variation_selector covered by @face to.
+ *
+ *
+ *
+ * Since: 1.9.0
+ */
+ void
+ hb_face_collect_variation_unicodes (hb_face_t *face,
+ hb_codepoint_t variation_selector,
+ hb_set_t *out)
+ {
+ face->table.cmap->collect_variation_unicodes (variation_selector, out);
+ }
+
+
+
+ /*
+ * face-builder: A face that has add_table().
+ */
+
+ struct hb_face_builder_data_t
+ {
+ struct table_entry_t
+ {
+ int cmp (hb_tag_t t) const
+ {
+ if (t < tag) return -1;
+ if (t > tag) return -1;
+ return 0;
+ }
+
+ hb_tag_t tag;
+ hb_blob_t *blob;
+ };
+
+ hb_vector_t<table_entry_t> tables;
+ };
+
+ static hb_face_builder_data_t *
+ _hb_face_builder_data_create ()
+ {
+ hb_face_builder_data_t *data = (hb_face_builder_data_t *) calloc (1, sizeof (hb_face_builder_data_t));
+ if (unlikely (!data))
+ return nullptr;
+
+ data->tables.init ();
+
+ return data;
+ }
+
+ static void
+ _hb_face_builder_data_destroy (void *user_data)
+ {
+ hb_face_builder_data_t *data = (hb_face_builder_data_t *) user_data;
+
+ for (unsigned int i = 0; i < data->tables.length; i++)
+ hb_blob_destroy (data->tables[i].blob);
+
+ data->tables.fini ();
+
+ free (data);
+ }
+
+ static hb_blob_t *
+ _hb_face_builder_data_reference_blob (hb_face_builder_data_t *data)
+ {
+
+ unsigned int table_count = data->tables.length;
+ unsigned int face_length = table_count * 16 + 12;
+
+ for (unsigned int i = 0; i < table_count; i++)
+ face_length += hb_ceil_to_4 (hb_blob_get_length (data->tables[i].blob));
+
+ char *buf = (char *) malloc (face_length);
+ if (unlikely (!buf))
+ return nullptr;
+
+ hb_serialize_context_t c (buf, face_length);
+ c.propagate_error (data->tables);
+ OT::OpenTypeFontFile *f = c.start_serialize<OT::OpenTypeFontFile> ();
+
+ bool is_cff = data->tables.lsearch (HB_TAG ('C','F','F',' ')) || data->tables.lsearch (HB_TAG ('C','F','F','2'));
+ hb_tag_t sfnt_tag = is_cff ? OT::OpenTypeFontFile::CFFTag : OT::OpenTypeFontFile::TrueTypeTag;
+
+ bool ret = f->serialize_single (&c, sfnt_tag, data->tables.as_array ());
+
+ c.end_serialize ();
+
+ if (unlikely (!ret))
+ {
+ free (buf);
+ return nullptr;
+ }
+
+ return hb_blob_create (buf, face_length, HB_MEMORY_MODE_WRITABLE, buf, free);
+ }
+
+ static hb_blob_t *
+ _hb_face_builder_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data)
+ {
+ hb_face_builder_data_t *data = (hb_face_builder_data_t *) user_data;
+
+ if (!tag)
+ return _hb_face_builder_data_reference_blob (data);
+
+ hb_face_builder_data_t::table_entry_t *entry = data->tables.lsearch (tag);
+ if (entry)
+ return hb_blob_reference (entry->blob);
+
+ return nullptr;
+ }
+
+
+ /**
+ * hb_face_builder_create:
+ *
+ * Creates a #hb_face_t that can be used with hb_face_builder_add_table().
+ * After tables are added to the face, it can be compiled to a binary
+ * font file by calling hb_face_reference_blob().
+ *
+ * Return value: (transfer full): New face.
+ *
+ * Since: 1.9.0
+ **/
+ hb_face_t *
+ hb_face_builder_create ()
+ {
+ hb_face_builder_data_t *data = _hb_face_builder_data_create ();
+ if (unlikely (!data)) return hb_face_get_empty ();
+
+ return hb_face_create_for_tables (_hb_face_builder_reference_table,
+ data,
+ _hb_face_builder_data_destroy);
+ }
+
+ /**
+ * hb_face_builder_add_table:
+ *
+ * Add table for @tag with data provided by @blob to the face. @face must
+ * be created using hb_face_builder_create().
+ *
+ * Since: 1.9.0
+ **/
+ hb_bool_t
+ hb_face_builder_add_table (hb_face_t *face, hb_tag_t tag, hb_blob_t *blob)
+ {
+ if (unlikely (face->destroy != (hb_destroy_func_t) _hb_face_builder_data_destroy))
+ return false;
+
+ hb_face_builder_data_t *data = (hb_face_builder_data_t *) face->user_data;
+ hb_face_builder_data_t::table_entry_t *entry = data->tables.push ();
+
+ entry->tag = tag;
+ entry->blob = hb_blob_reference (blob);
+
+ return true;
+ }
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