Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/gfx/harfbuzz/src/hb-ot-name.cc b/gfx/harfbuzz/src/hb-ot-name.cc
new file mode 100644
index 0000000000..6adf1e8fbe
--- /dev/null
+++ b/gfx/harfbuzz/src/hb-ot-name.cc
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+/*
+ * Copyright © 2018  Google, Inc.
+ *
+ *  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.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#include "hb.hh"
+
+#ifndef HB_NO_NAME
+
+#include "hb-ot-name-table.hh"
+
+#include "hb-utf.hh"
+
+
+/**
+ * SECTION:hb-ot-name
+ * @title: hb-ot-name
+ * @short_description: OpenType font name information
+ * @include: hb-ot.h
+ *
+ * Functions for fetching name strings from OpenType fonts.
+ **/
+
+
+/**
+ * hb_ot_name_list_names:
+ * @face: font face.
+ * @num_entries: (out) (optional): number of returned entries.
+ *
+ * Enumerates all available name IDs and language combinations. Returned
+ * array is owned by the @face and should not be modified.  It can be
+ * used as long as @face is alive.
+ *
+ * Returns: (transfer none) (array length=num_entries): Array of available name entries.
+ * Since: 2.1.0
+ **/
+const hb_ot_name_entry_t *
+hb_ot_name_list_names (hb_face_t    *face,
+		       unsigned int *num_entries /* OUT */)
+{
+  const OT::name_accelerator_t &name = *face->table.name;
+  if (num_entries) *num_entries = name.names.length;
+  return (const hb_ot_name_entry_t *) name.names;
+}
+
+template <typename utf_t>
+static inline unsigned int
+hb_ot_name_get_utf (hb_face_t       *face,
+		    hb_ot_name_id_t  name_id,
+		    hb_language_t    language,
+		    unsigned int    *text_size /* IN/OUT */,
+		    typename utf_t::codepoint_t *text /* OUT */)
+{
+  const OT::name_accelerator_t &name = *face->table.name;
+
+  if (!language)
+    language = hb_language_from_string ("en", 2);
+
+  unsigned int width;
+  int idx = name.get_index (name_id, language, &width);
+  if (idx != -1)
+  {
+    hb_bytes_t bytes = name.get_name (idx);
+
+    if (width == 2) /* UTF16-BE */
+      return OT::hb_ot_name_convert_utf<hb_utf16_be_t, utf_t> (bytes, text_size, text);
+
+    if (width == 1) /* ASCII */
+      return OT::hb_ot_name_convert_utf<hb_ascii_t, utf_t> (bytes, text_size, text);
+  }
+
+  if (text_size)
+  {
+    if (*text_size)
+      *text = 0;
+    *text_size = 0;
+  }
+  return 0;
+}
+
+/**
+ * hb_ot_name_get_utf8:
+ * @face: font face.
+ * @name_id: OpenType name identifier to fetch.
+ * @language: language to fetch the name for.
+ * @text_size: (inout) (optional): input size of @text buffer, and output size of
+ *                                   text written to buffer.
+ * @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
+ *
+ * Fetches a font name from the OpenType 'name' table.
+ * If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
+ * Returns string in UTF-8 encoding. A NUL terminator is always written
+ * for convenience, and isn't included in the output @text_size.
+ *
+ * Returns: full length of the requested string, or 0 if not found.
+ * Since: 2.1.0
+ **/
+unsigned int
+hb_ot_name_get_utf8 (hb_face_t       *face,
+		     hb_ot_name_id_t  name_id,
+		     hb_language_t    language,
+		     unsigned int    *text_size /* IN/OUT */,
+		     char            *text      /* OUT */)
+{
+  return hb_ot_name_get_utf<hb_utf8_t> (face, name_id, language, text_size,
+					(hb_utf8_t::codepoint_t *) text);
+}
+
+/**
+ * hb_ot_name_get_utf16:
+ * @face: font face.
+ * @name_id: OpenType name identifier to fetch.
+ * @language: language to fetch the name for.
+ * @text_size: (inout) (optional): input size of @text buffer, and output size of
+ *                                   text written to buffer.
+ * @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
+ *
+ * Fetches a font name from the OpenType 'name' table.
+ * If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
+ * Returns string in UTF-16 encoding. A NUL terminator is always written
+ * for convenience, and isn't included in the output @text_size.
+ *
+ * Returns: full length of the requested string, or 0 if not found.
+ * Since: 2.1.0
+ **/
+unsigned int
+hb_ot_name_get_utf16 (hb_face_t       *face,
+		      hb_ot_name_id_t  name_id,
+		      hb_language_t    language,
+		      unsigned int    *text_size /* IN/OUT */,
+		      uint16_t        *text      /* OUT */)
+{
+  return hb_ot_name_get_utf<hb_utf16_t> (face, name_id, language, text_size, text);
+}
+
+/**
+ * hb_ot_name_get_utf32:
+ * @face: font face.
+ * @name_id: OpenType name identifier to fetch.
+ * @language: language to fetch the name for.
+ * @text_size: (inout) (optional): input size of @text buffer, and output size of
+ *                                   text written to buffer.
+ * @text: (out caller-allocates) (array length=text_size): buffer to write fetched name into.
+ *
+ * Fetches a font name from the OpenType 'name' table.
+ * If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
+ * Returns string in UTF-32 encoding. A NUL terminator is always written
+ * for convenience, and isn't included in the output @text_size.
+ *
+ * Returns: full length of the requested string, or 0 if not found.
+ * Since: 2.1.0
+ **/
+unsigned int
+hb_ot_name_get_utf32 (hb_face_t       *face,
+		      hb_ot_name_id_t  name_id,
+		      hb_language_t    language,
+		      unsigned int    *text_size /* IN/OUT */,
+		      uint32_t        *text      /* OUT */)
+{
+  return hb_ot_name_get_utf<hb_utf32_t> (face, name_id, language, text_size, text);
+}
+
+#endif