1 files changed, 98 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/hb-draw.h b/gfx/harfbuzz/src/hb-draw.h
new file mode 100644
index 0000000000..98eccf4c0c
--- /dev/null
+++ b/gfx/harfbuzz/src/hb-draw.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright © 2019-2020  Ebrahim Byagowi
+ *
+ *  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_H_IN
+#error "Include <hb.h> instead."
+#endif
+
+#ifndef HB_DRAW_H
+#define HB_DRAW_H
+
+#include "hb.h"
+
+HB_BEGIN_DECLS
+
+#ifdef HB_EXPERIMENTAL_API
+typedef void (*hb_draw_move_to_func_t) (hb_position_t to_x, hb_position_t to_y, void *user_data);
+typedef void (*hb_draw_line_to_func_t) (hb_position_t to_x, hb_position_t to_y, void *user_data);
+typedef void (*hb_draw_quadratic_to_func_t) (hb_position_t control_x, hb_position_t control_y,
+					     hb_position_t to_x, hb_position_t to_y,
+					     void *user_data);
+typedef void (*hb_draw_cubic_to_func_t) (hb_position_t control1_x, hb_position_t control1_y,
+					 hb_position_t control2_x, hb_position_t control2_y,
+					 hb_position_t to_x, hb_position_t to_y,
+					 void *user_data);
+typedef void (*hb_draw_close_path_func_t) (void *user_data);
+
+/**
+ * hb_draw_funcs_t:
+ *
+ * Glyph draw callbacks.
+ *
+ * _move_to, _line_to and _cubic_to calls are nessecary to be defined but we
+ * translate _quadratic_to calls to _cubic_to if the callback isn't defined.
+ *
+ * Since: EXPERIMENTAL
+ **/
+typedef struct hb_draw_funcs_t hb_draw_funcs_t;
+
+HB_EXTERN void
+hb_draw_funcs_set_move_to_func (hb_draw_funcs_t        *funcs,
+				hb_draw_move_to_func_t  move_to);
+
+HB_EXTERN void
+hb_draw_funcs_set_line_to_func (hb_draw_funcs_t        *funcs,
+				hb_draw_line_to_func_t  line_to);
+
+HB_EXTERN void
+hb_draw_funcs_set_quadratic_to_func (hb_draw_funcs_t             *funcs,
+				     hb_draw_quadratic_to_func_t  quadratic_to);
+
+HB_EXTERN void
+hb_draw_funcs_set_cubic_to_func (hb_draw_funcs_t         *funcs,
+				 hb_draw_cubic_to_func_t  cubic_to);
+
+HB_EXTERN void
+hb_draw_funcs_set_close_path_func (hb_draw_funcs_t           *funcs,
+				   hb_draw_close_path_func_t  close_path);
+
+HB_EXTERN hb_draw_funcs_t *
+hb_draw_funcs_create (void);
+
+HB_EXTERN hb_draw_funcs_t *
+hb_draw_funcs_reference (hb_draw_funcs_t *funcs);
+
+HB_EXTERN void
+hb_draw_funcs_destroy (hb_draw_funcs_t *funcs);
+
+HB_EXTERN void
+hb_draw_funcs_make_immutable (hb_draw_funcs_t *funcs);
+
+HB_EXTERN hb_bool_t
+hb_draw_funcs_is_immutable (hb_draw_funcs_t *funcs);
+#endif
+
+HB_END_DECLS
+
+#endif /* HB_DRAW_H */