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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ft.cc83
1 files changed, 83 insertions, 0 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ft.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ft.cc
index 67691e3ff33..0cfbb22e31d 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ft.cc
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ft.cc
@@ -33,12 +33,14 @@
#include "hb-ft.h"
+#include "hb-draw.hh"
#include "hb-font.hh"
#include "hb-machinery.hh"
#include "hb-cache.hh"
#include FT_ADVANCES_H
#include FT_MULTIPLE_MASTERS_H
+#include FT_OUTLINE_H
#include FT_TRUETYPE_TABLES_H
@@ -380,6 +382,7 @@ hb_ft_get_glyph_v_advance (hb_font_t *font,
/* Note: FreeType's vertical metrics grows downward while other FreeType coordinates
* have a Y growing upward. Hence the extra negation. */
+
return (-v + (1<<9)) >> 10;
}
#endif
@@ -565,6 +568,82 @@ hb_ft_get_font_h_extents (hb_font_t *font HB_UNUSED,
return true;
}
+#ifndef HB_NO_DRAW
+
+static int
+_hb_ft_move_to (const FT_Vector *to,
+ hb_draw_session_t *drawing)
+{
+ drawing->move_to (to->x, to->y);
+ return FT_Err_Ok;
+}
+
+static int
+_hb_ft_line_to (const FT_Vector *to,
+ hb_draw_session_t *drawing)
+{
+ drawing->line_to (to->x, to->y);
+ return FT_Err_Ok;
+}
+
+static int
+_hb_ft_conic_to (const FT_Vector *control,
+ const FT_Vector *to,
+ hb_draw_session_t *drawing)
+{
+ drawing->quadratic_to (control->x, control->y,
+ to->x, to->y);
+ return FT_Err_Ok;
+}
+
+static int
+_hb_ft_cubic_to (const FT_Vector *control1,
+ const FT_Vector *control2,
+ const FT_Vector *to,
+ hb_draw_session_t *drawing)
+{
+ drawing->cubic_to (control1->x, control1->y,
+ control2->x, control2->y,
+ to->x, to->y);
+ return FT_Err_Ok;
+}
+
+static void
+hb_ft_get_glyph_shape (hb_font_t *font HB_UNUSED,
+ void *font_data,
+ hb_codepoint_t glyph,
+ hb_draw_funcs_t *draw_funcs, void *draw_data,
+ void *user_data HB_UNUSED)
+{
+ const hb_ft_font_t *ft_font = (const hb_ft_font_t *) font_data;
+ hb_lock_t lock (ft_font->lock);
+ FT_Face ft_face = ft_font->ft_face;
+
+ if (unlikely (FT_Load_Glyph (ft_face, glyph,
+ FT_LOAD_NO_BITMAP | ft_font->load_flags)))
+ return;
+
+ if (ft_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE)
+ return;
+
+ const FT_Outline_Funcs outline_funcs = {
+ (FT_Outline_MoveToFunc) _hb_ft_move_to,
+ (FT_Outline_LineToFunc) _hb_ft_line_to,
+ (FT_Outline_ConicToFunc) _hb_ft_conic_to,
+ (FT_Outline_CubicToFunc) _hb_ft_cubic_to,
+ 0, /* shift */
+ 0, /* delta */
+ };
+
+ hb_draw_session_t draw_session (draw_funcs, draw_data, font->slant_xy);
+
+ FT_Outline_Decompose (&ft_face->glyph->outline,
+ &outline_funcs,
+ &draw_session);
+}
+#endif
+
+
static inline void free_static_ft_funcs ();
static struct hb_ft_font_funcs_lazy_loader_t : hb_font_funcs_lazy_loader_t<hb_ft_font_funcs_lazy_loader_t>
@@ -596,6 +675,10 @@ static struct hb_ft_font_funcs_lazy_loader_t : hb_font_funcs_lazy_loader_t<hb_ft
hb_font_funcs_set_glyph_name_func (funcs, hb_ft_get_glyph_name, nullptr, nullptr);
hb_font_funcs_set_glyph_from_name_func (funcs, hb_ft_get_glyph_from_name, nullptr, nullptr);
+#ifndef HB_NO_DRAW
+ hb_font_funcs_set_glyph_shape_func (funcs, hb_ft_get_glyph_shape, nullptr, nullptr);
+#endif
+
hb_font_funcs_make_immutable (funcs);
hb_atexit (free_static_ft_funcs);