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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/OT/glyf/CompositeGlyph.hh258
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diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/glyf/CompositeGlyph.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/glyf/CompositeGlyph.hh
new file mode 100644
index 00000000000..c145beaa49a
--- /dev/null
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/OT/glyf/CompositeGlyph.hh
@@ -0,0 +1,258 @@
+#ifndef OT_GLYF_COMPOSITEGLYPH_HH
+#define OT_GLYF_COMPOSITEGLYPH_HH
+
+
+#include "../../hb-open-type.hh"
+
+
+namespace OT {
+namespace glyf_impl {
+
+
+struct CompositeGlyphRecord
+{
+ protected:
+ enum composite_glyph_flag_t
+ {
+ ARG_1_AND_2_ARE_WORDS = 0x0001,
+ ARGS_ARE_XY_VALUES = 0x0002,
+ ROUND_XY_TO_GRID = 0x0004,
+ WE_HAVE_A_SCALE = 0x0008,
+ MORE_COMPONENTS = 0x0020,
+ WE_HAVE_AN_X_AND_Y_SCALE = 0x0040,
+ WE_HAVE_A_TWO_BY_TWO = 0x0080,
+ WE_HAVE_INSTRUCTIONS = 0x0100,
+ USE_MY_METRICS = 0x0200,
+ OVERLAP_COMPOUND = 0x0400,
+ SCALED_COMPONENT_OFFSET = 0x0800,
+ UNSCALED_COMPONENT_OFFSET = 0x1000
+ };
+
+ public:
+ unsigned int get_size () const
+ {
+ unsigned int size = min_size;
+ /* arg1 and 2 are int16 */
+ if (flags & ARG_1_AND_2_ARE_WORDS) size += 4;
+ /* arg1 and 2 are int8 */
+ else size += 2;
+
+ /* One x 16 bit (scale) */
+ if (flags & WE_HAVE_A_SCALE) size += 2;
+ /* Two x 16 bit (xscale, yscale) */
+ else if (flags & WE_HAVE_AN_X_AND_Y_SCALE) size += 4;
+ /* Four x 16 bit (xscale, scale01, scale10, yscale) */
+ else if (flags & WE_HAVE_A_TWO_BY_TWO) size += 8;
+
+ return size;
+ }
+
+ void drop_instructions_flag () { flags = (uint16_t) flags & ~WE_HAVE_INSTRUCTIONS; }
+ void set_overlaps_flag ()
+ {
+ flags = (uint16_t) flags | OVERLAP_COMPOUND;
+ }
+
+ bool has_instructions () const { return flags & WE_HAVE_INSTRUCTIONS; }
+
+ bool has_more () const { return flags & MORE_COMPONENTS; }
+ bool is_use_my_metrics () const { return flags & USE_MY_METRICS; }
+ bool is_anchored () const { return !(flags & ARGS_ARE_XY_VALUES); }
+ void get_anchor_points (unsigned int &point1, unsigned int &point2) const
+ {
+ const HBUINT8 *p = &StructAfter<const HBUINT8> (glyphIndex);
+ if (flags & ARG_1_AND_2_ARE_WORDS)
+ {
+ point1 = ((const HBUINT16 *) p)[0];
+ point2 = ((const HBUINT16 *) p)[1];
+ }
+ else
+ {
+ point1 = p[0];
+ point2 = p[1];
+ }
+ }
+
+ void transform_points (contour_point_vector_t &points) const
+ {
+ float matrix[4];
+ contour_point_t trans;
+ if (get_transformation (matrix, trans))
+ {
+ if (scaled_offsets ())
+ {
+ points.translate (trans);
+ points.transform (matrix);
+ }
+ else
+ {
+ points.transform (matrix);
+ points.translate (trans);
+ }
+ }
+ }
+
+ protected:
+ bool scaled_offsets () const
+ { return (flags & (SCALED_COMPONENT_OFFSET | UNSCALED_COMPONENT_OFFSET)) == SCALED_COMPONENT_OFFSET; }
+
+ bool get_transformation (float (&matrix)[4], contour_point_t &trans) const
+ {
+ matrix[0] = matrix[3] = 1.f;
+ matrix[1] = matrix[2] = 0.f;
+
+ int tx, ty;
+ const HBINT8 *p = &StructAfter<const HBINT8> (glyphIndex);
+ if (flags & ARG_1_AND_2_ARE_WORDS)
+ {
+ tx = *(const HBINT16 *) p;
+ p += HBINT16::static_size;
+ ty = *(const HBINT16 *) p;
+ p += HBINT16::static_size;
+ }
+ else
+ {
+ tx = *p++;
+ ty = *p++;
+ }
+ if (is_anchored ()) tx = ty = 0;
+
+ trans.init ((float) tx, (float) ty);
+
+ {
+ const F2DOT14 *points = (const F2DOT14 *) p;
+ if (flags & WE_HAVE_A_SCALE)
+ {
+ matrix[0] = matrix[3] = points[0].to_float ();
+ return true;
+ }
+ else if (flags & WE_HAVE_AN_X_AND_Y_SCALE)
+ {
+ matrix[0] = points[0].to_float ();
+ matrix[3] = points[1].to_float ();
+ return true;
+ }
+ else if (flags & WE_HAVE_A_TWO_BY_TWO)
+ {
+ matrix[0] = points[0].to_float ();
+ matrix[1] = points[1].to_float ();
+ matrix[2] = points[2].to_float ();
+ matrix[3] = points[3].to_float ();
+ return true;
+ }
+ }
+ return tx || ty;
+ }
+
+ public:
+ HBUINT16 flags;
+ HBGlyphID16 glyphIndex;
+ public:
+ DEFINE_SIZE_MIN (4);
+};
+
+struct composite_iter_t : hb_iter_with_fallback_t<composite_iter_t, const CompositeGlyphRecord &>
+{
+ typedef const CompositeGlyphRecord *__item_t__;
+ composite_iter_t (hb_bytes_t glyph_, __item_t__ current_) :
+ glyph (glyph_), current (nullptr), current_size (0)
+ {
+ set_current (current_);
+ }
+
+ composite_iter_t () : glyph (hb_bytes_t ()), current (nullptr), current_size (0) {}
+
+ item_t __item__ () const { return *current; }
+ bool __more__ () const { return current; }
+ void __next__ ()
+ {
+ if (!current->has_more ()) { current = nullptr; return; }
+
+ set_current (&StructAtOffset<CompositeGlyphRecord> (current, current_size));
+ }
+ composite_iter_t __end__ () const { return composite_iter_t (); }
+ bool operator != (const composite_iter_t& o) const
+ { return current != o.current; }
+
+
+ void set_current (__item_t__ current_)
+ {
+ if (!glyph.check_range (current_, CompositeGlyphRecord::min_size))
+ {
+ current = nullptr;
+ current_size = 0;
+ return;
+ }
+ unsigned size = current_->get_size ();
+ if (!glyph.check_range (current_, size))
+ {
+ current = nullptr;
+ current_size = 0;
+ return;
+ }
+
+ current = current_;
+ current_size = size;
+ }
+
+ private:
+ hb_bytes_t glyph;
+ __item_t__ current;
+ unsigned current_size;
+};
+
+struct CompositeGlyph
+{
+ const GlyphHeader &header;
+ hb_bytes_t bytes;
+ CompositeGlyph (const GlyphHeader &header_, hb_bytes_t bytes_) :
+ header (header_), bytes (bytes_) {}
+
+ composite_iter_t iter () const
+ { return composite_iter_t (bytes, &StructAfter<CompositeGlyphRecord, GlyphHeader> (header)); }
+
+ unsigned int instructions_length (hb_bytes_t bytes) const
+ {
+ unsigned int start = bytes.length;
+ unsigned int end = bytes.length;
+ const CompositeGlyphRecord *last = nullptr;
+ for (auto &item : iter ())
+ last = &item;
+ if (unlikely (!last)) return 0;
+
+ if (last->has_instructions ())
+ start = (char *) last - &bytes + last->get_size ();
+ if (unlikely (start > end)) return 0;
+ return end - start;
+ }
+
+ /* Trimming for composites not implemented.
+ * If removing hints it falls out of that. */
+ const hb_bytes_t trim_padding () const { return bytes; }
+
+ void drop_hints ()
+ {
+ for (const auto &_ : iter ())
+ const_cast<CompositeGlyphRecord &> (_).drop_instructions_flag ();
+ }
+
+ /* Chop instructions off the end */
+ void drop_hints_bytes (hb_bytes_t &dest_start) const
+ { dest_start = bytes.sub_array (0, bytes.length - instructions_length (bytes)); }
+
+ void set_overlaps_flag ()
+ {
+ CompositeGlyphRecord& glyph_chain = const_cast<CompositeGlyphRecord &> (
+ StructAfter<CompositeGlyphRecord, GlyphHeader> (header));
+ if (!bytes.check_range(&glyph_chain, CompositeGlyphRecord::min_size))
+ return;
+ glyph_chain.set_overlaps_flag ();
+ }
+};
+
+
+} /* namespace glyf_impl */
+} /* namespace OT */
+
+
+#endif /* OT_GLYF_COMPOSITEGLYPH_HH */