1 files changed, 109 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-wasm-api-face.hh b/gfx/harfbuzz/src/hb-wasm-api-face.hh
new file mode 100644
index 0000000000..22e50e9446
--- /dev/null
+++ b/gfx/harfbuzz/src/hb-wasm-api-face.hh
@@ -0,0 +1,109 @@
+/*
+ * Copyright © 2023  Behdad Esfahbod
+ *
+ *  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.
+ */
+
+#ifndef HB_WASM_API_FACE_HH
+#define HB_WASM_API_FACE_HH
+
+#include "hb-wasm-api.hh"
+
+namespace hb {
+namespace wasm {
+
+
+HB_WASM_API (ptr_t(face_t), face_create) (HB_WASM_EXEC_ENV
+					  ptr_d(blob_t, blob),
+					  unsigned int index)
+{
+  HB_PTR_PARAM (blob_t, blob);
+  hb_blob_t *hb_blob = hb_blob_create(
+				      HB_ARRAY_APP2NATIVE (char, blob->data, blob->length),
+				      blob->length,
+				      HB_MEMORY_MODE_DUPLICATE,
+				      NULL,
+				      NULL);
+
+  hb_face_t *face = hb_face_create(hb_blob, index);
+
+  HB_OBJ2REF (face);
+  return faceref;
+}
+
+HB_WASM_API (bool_t, face_copy_table) (HB_WASM_EXEC_ENV
+				       ptr_d(face_t, face),
+				       tag_t table_tag,
+				       ptr_d(blob_t, blob))
+{
+  HB_REF2OBJ (face);
+  HB_PTR_PARAM (blob_t, blob);
+  if (unlikely (!blob))
+    return false;
+
+  hb_blob_t *hb_blob = hb_face_reference_table (face, table_tag);
+
+  unsigned length;
+  const char *hb_data = hb_blob_get_data (hb_blob, &length);
+
+  if (length <= blob->length)
+  {
+    char *data = HB_ARRAY_APP2NATIVE (char, blob->data, length);
+
+    if (unlikely (!data))
+    {
+      blob->length = 0;
+      return false;
+    }
+
+    hb_memcpy (data, hb_data, length);
+
+    return true;
+  }
+
+  module_free (blob->data);
+
+  blob->length = length;
+  blob->data = wasm_runtime_module_dup_data (module_inst, hb_data, length);
+
+  hb_blob_destroy (hb_blob);
+
+  if (blob->length && !blob->data)
+  {
+    blob->length = 0;
+    return false;
+  }
+
+  return true;
+}
+
+HB_WASM_API (unsigned, face_get_upem) (HB_WASM_EXEC_ENV
+				       ptr_d(face_t, face))
+{
+  HB_REF2OBJ (face);
+
+  return hb_face_get_upem (face);
+}
+
+
+}}
+
+#endif /* HB_WASM_API_FACE_HH */