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diff --git a/src/3rdparty/harfbuzz-ng/src/hb-wasm-api.h b/src/3rdparty/harfbuzz-ng/src/hb-wasm-api.h
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index 0000000000..f9bd98e5ea
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+++ b/src/3rdparty/harfbuzz-ng/src/hb-wasm-api.h
@@ -0,0 +1,319 @@
+/*
+ * 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_H
+#define HB_WASM_API_H
+
+/*
+#include "hb.h"
+*/
+
+#include <stdint.h>
+
+
+#ifndef HB_WASM_BEGIN_DECLS
+# ifdef __cplusplus
+# define HB_WASM_BEGIN_DECLS extern "C" {
+# define HB_WASM_END_DECLS }
+# else /* !__cplusplus */
+# define HB_WASM_BEGIN_DECLS
+# define HB_WASM_END_DECLS
+# endif /* !__cplusplus */
+#endif
+
+
+HB_WASM_BEGIN_DECLS
+
+#ifndef HB_WASM_API
+#define HB_WASM_API(ret_t, name) ret_t name
+#endif
+#ifndef HB_WASM_API_COMPOUND /* compound return type */
+#define HB_WASM_API_COMPOUND(ret_t, name) HB_WASM_API(ret_t, name)
+#endif
+#ifndef HB_WASM_INTERFACE
+#define HB_WASM_INTERFACE(ret_t, name) ret_t name
+#endif
+#ifndef HB_WASM_EXEC_ENV
+#define HB_WASM_EXEC_ENV
+#endif
+#ifndef HB_WASM_EXEC_ENV_COMPOUND
+#define HB_WASM_EXEC_ENV_COMPOUND HB_WASM_EXEC_ENV
+#endif
+
+
+#ifndef bool_t
+#define bool_t uint32_t
+#endif
+#ifndef ptr_t
+#define ptr_t(type_t) type_t *
+#endif
+#ifndef ptr_d
+#define ptr_d(type_t, name) type_t *name
+#endif
+
+typedef uint32_t codepoint_t;
+typedef int32_t position_t;
+typedef uint32_t mask_t;
+typedef uint32_t tag_t;
+#define TAG(c1,c2,c3,c4) ((tag_t)((((uint32_t)(c1)&0xFF)<<24)|(((uint32_t)(c2)&0xFF)<<16)|(((uint32_t)(c3)&0xFF)<<8)|((uint32_t)(c4)&0xFF)))
+
+typedef enum {
+ DIRECTION_INVALID = 0,
+ DIRECTION_LTR = 4,
+ DIRECTION_RTL,
+ DIRECTION_TTB,
+ DIRECTION_BTT
+} direction_t;
+#define DIRECTION_IS_VALID(dir) ((((unsigned int) (dir)) & ~3U) == 4)
+#define DIRECTION_IS_HORIZONTAL(dir) ((((unsigned int) (dir)) & ~1U) == 4)
+#define DIRECTION_IS_VERTICAL(dir) ((((unsigned int) (dir)) & ~1U) == 6)
+#define DIRECTION_IS_FORWARD(dir) ((((unsigned int) (dir)) & ~2U) == 4)
+#define DIRECTION_IS_BACKWARD(dir) ((((unsigned int) (dir)) & ~2U) == 5)
+#define DIRECTION_REVERSE(dir) ((direction_t) (((unsigned int) (dir)) ^ 1))
+
+typedef tag_t script_t; /* ISO 15924 representation of Unicode scripts. */
+
+
+/* common */
+
+HB_WASM_API (direction_t, script_get_horizontal_direction) (HB_WASM_EXEC_ENV
+ script_t script);
+
+
+/* blob */
+
+typedef struct
+{
+ uint32_t length;
+ ptr_t(char) data;
+} blob_t;
+#define BLOB_INIT {0, 0}
+
+HB_WASM_API (void, blob_free) (HB_WASM_EXEC_ENV
+ ptr_d(blob_t, blob));
+
+/* buffer */
+
+typedef struct
+{
+ uint32_t codepoint;
+ uint32_t mask;
+ uint32_t cluster;
+ uint32_t var1;
+ uint32_t var2;
+} glyph_info_t;
+
+typedef struct
+{
+ position_t x_advance;
+ position_t y_advance;
+ position_t x_offset;
+ position_t y_offset;
+ uint32_t var;
+} glyph_position_t;
+
+typedef struct
+{
+ uint32_t length;
+ ptr_t(glyph_info_t) info;
+ ptr_t(glyph_position_t) pos;
+} buffer_contents_t;
+#define BUFFER_CONTENTS_INIT {0, 0, 0}
+
+HB_WASM_API (bool_t, buffer_contents_realloc) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_contents_t, contents),
+ uint32_t size);
+
+HB_WASM_API (void, buffer_contents_free) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_contents_t, contents));
+
+typedef struct buffer_t buffer_t;
+
+HB_WASM_API (bool_t, buffer_copy_contents) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_t, buffer),
+ ptr_d(buffer_contents_t, contents));
+
+HB_WASM_API (bool_t, buffer_set_contents) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_t, buffer),
+ ptr_d(const buffer_contents_t, contents));
+
+HB_WASM_API (direction_t, buffer_get_direction) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_t, buffer));
+
+HB_WASM_API (script_t, buffer_get_script) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_t, buffer));
+
+HB_WASM_API (void, buffer_reverse) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_t, buffer));
+
+HB_WASM_API (void, buffer_reverse_clusters) (HB_WASM_EXEC_ENV
+ ptr_d(buffer_t, buffer));
+
+/* face */
+
+typedef struct face_t face_t;
+
+HB_WASM_API (ptr_t(face_t), face_create) (HB_WASM_EXEC_ENV
+ ptr_d(blob_t, blob),
+ unsigned int);
+
+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_WASM_API (unsigned, face_get_upem) (HB_WASM_EXEC_ENV
+ ptr_d(face_t, face));
+
+/* font */
+
+typedef struct font_t font_t;
+
+HB_WASM_API (ptr_t(font_t), font_create) (HB_WASM_EXEC_ENV
+ ptr_d(face_t, face));
+
+HB_WASM_API (ptr_t(face_t), font_get_face) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font));
+
+HB_WASM_API (void, font_get_scale) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ ptr_d(int32_t, x_scale),
+ ptr_d(int32_t, y_scale));
+
+HB_WASM_API (codepoint_t, font_get_glyph) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ codepoint_t unicode,
+ codepoint_t variation_selector);
+
+HB_WASM_API (position_t, font_get_glyph_h_advance) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ codepoint_t glyph);
+
+HB_WASM_API (position_t, font_get_glyph_v_advance) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ codepoint_t glyph);
+
+typedef struct
+{
+ position_t x_bearing;
+ position_t y_bearing;
+ position_t width;
+ position_t height;
+} glyph_extents_t;
+
+HB_WASM_API (bool_t, font_get_glyph_extents) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ codepoint_t glyph,
+ ptr_d(glyph_extents_t, extents));
+
+HB_WASM_API (void, font_glyph_to_string) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ codepoint_t glyph,
+ char *s, uint32_t size);
+
+
+typedef struct
+{
+ unsigned int length;
+ ptr_t(int) coords;
+} coords_t;
+
+HB_WASM_API (bool_t, font_copy_coords) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ ptr_d(coords_t, coords));
+
+HB_WASM_API (bool_t, font_set_coords) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ ptr_d(coords_t, coords));
+
+/* outline */
+
+enum glyph_outline_point_type_t
+{
+ MOVE_TO,
+ LINE_TO,
+ QUADRATIC_TO,
+ CUBIC_TO,
+};
+
+typedef struct
+{
+ float x;
+ float y;
+ uint32_t type;
+} glyph_outline_point_t;
+
+typedef struct
+{
+ uint32_t n_points;
+ ptr_t(glyph_outline_point_t) points;
+ uint32_t n_contours;
+ ptr_t(uint32_t) contours;
+} glyph_outline_t;
+#define GLYPH_OUTLINE_INIT {0, 0, 0, 0}
+
+HB_WASM_API (void, glyph_outline_free) (HB_WASM_EXEC_ENV
+ ptr_d(glyph_outline_t, outline));
+
+HB_WASM_API (bool_t, font_copy_glyph_outline) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ codepoint_t glyph,
+ ptr_d(glyph_outline_t, outline));
+
+
+/* shape */
+
+typedef struct
+{
+ tag_t tag;
+ uint32_t value;
+ uint32_t start;
+ uint32_t end;
+} feature_t;
+#define FEATURE_GLOBAL_START 0
+#define FEATURE_GLOBAL_END ((uint32_t) -1)
+
+HB_WASM_API (bool_t, shape_with) (HB_WASM_EXEC_ENV
+ ptr_d(font_t, font),
+ ptr_d(buffer_t, buffer),
+ ptr_d(const feature_t, features),
+ uint32_t num_features,
+ const char *shaper);
+
+/* Implement these in your shaper. */
+
+HB_WASM_INTERFACE (ptr_t(void), shape_plan_create) (ptr_d(face_t, face));
+
+HB_WASM_INTERFACE (bool_t, shape) (ptr_d(void, shape_plan),
+ ptr_d(font_t, font),
+ ptr_d(buffer_t, buffer),
+ ptr_d(const feature_t, features),
+ uint32_t num_features);
+
+HB_WASM_INTERFACE (void, shape_plan_destroy) (ptr_d(void, shape_plan));
+
+
+HB_WASM_END_DECLS
+
+#endif /* HB_WASM_API_H */
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