Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 99 insertions, 0 deletions

diff --git a/gfx/harfbuzz/src/hb-aat-layout-ankr-table.hh b/gfx/harfbuzz/src/hb-aat-layout-ankr-table.hh
new file mode 100644
index 0000000000..dbb38b1bc0
--- /dev/null
+++ b/gfx/harfbuzz/src/hb-aat-layout-ankr-table.hh
@@ -0,0 +1,99 @@
+/*
+ * Copyright © 2018  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_AAT_LAYOUT_ANKR_TABLE_HH
+#define HB_AAT_LAYOUT_ANKR_TABLE_HH
+
+#include "hb-aat-layout-common.hh"
+
+/*
+ * ankr -- Anchor Point
+ * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6ankr.html
+ */
+#define HB_AAT_TAG_ankr HB_TAG('a','n','k','r')
+
+
+namespace AAT {
+
+using namespace OT;
+
+
+struct Anchor
+{
+  bool sanitize (hb_sanitize_context_t *c) const
+  {
+    TRACE_SANITIZE (this);
+    return_trace (c->check_struct (this));
+  }
+
+  public:
+  FWORD		xCoordinate;
+  FWORD		yCoordinate;
+  public:
+  DEFINE_SIZE_STATIC (4);
+};
+
+typedef Array32Of<Anchor> GlyphAnchors;
+
+struct ankr
+{
+  static constexpr hb_tag_t tableTag = HB_AAT_TAG_ankr;
+
+  const Anchor &get_anchor (hb_codepoint_t glyph_id,
+			    unsigned int i,
+			    unsigned int num_glyphs) const
+  {
+    const NNOffset16To<GlyphAnchors> *offset = (this+lookupTable).get_value (glyph_id, num_glyphs);
+    if (!offset)
+      return Null (Anchor);
+    const GlyphAnchors &anchors = &(this+anchorData) + *offset;
+    return anchors[i];
+  }
+
+  bool sanitize (hb_sanitize_context_t *c) const
+  {
+    TRACE_SANITIZE (this);
+    return_trace (likely (c->check_struct (this) &&
+			  hb_barrier () &&
+			  version == 0 &&
+			  c->check_range (this, anchorData) &&
+			  lookupTable.sanitize (c, this, &(this+anchorData))));
+  }
+
+  protected:
+  HBUINT16	version;	/* Version number (set to zero) */
+  HBUINT16	flags;		/* Flags (currently unused; set to zero) */
+  Offset32To<Lookup<NNOffset16To<GlyphAnchors>>>
+		lookupTable;	/* Offset to the table's lookup table */
+  NNOffset32To<HBUINT8>
+		anchorData;	/* Offset to the glyph data table */
+
+  public:
+  DEFINE_SIZE_STATIC (12);
+};
+
+} /* namespace AAT */
+
+
+#endif /* HB_AAT_LAYOUT_ANKR_TABLE_HH */