src/Makefile.sources | 1
src/hb-font.cc | 2
src/hb-ot-var-hvar-table.hh | 6 +-
src/hb-ot-var-mvar-table.hh | 110 ++++++++++++++++++++++++++++++++++++++++++++
src/hb-ot-var.cc | 1
5 files changed, 116 insertions(+), 4 deletions(-)
New commits:
commit 22af28a3f14c6d748ed589f8980b168152116c8c
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Mon Jan 23 23:42:53 2017 -0800
[var] Implement MVAR table
Unhooked. Untested.
diff --git a/src/Makefile.sources b/src/Makefile.sources
index 8d7f1a0..6363cf9 100644
--- a/src/Makefile.sources
+++ b/src/Makefile.sources
@@ -112,6 +112,7 @@ HB_OT_sources = \
hb-ot-var-avar-table.hh \
hb-ot-var-fvar-table.hh \
hb-ot-var-hvar-table.hh \
+ hb-ot-var-mvar-table.hh \
$(NULL)
HB_OT_headers = \
diff --git a/src/hb-font.cc b/src/hb-font.cc
index ea45501..826d3e1 100644
--- a/src/hb-font.cc
+++ b/src/hb-font.cc
@@ -1627,7 +1627,7 @@ hb_font_set_var_coords_normalized (hb_font_t *font,
}
/**
- * hb_font_set_var_coords_normalized:
+ * hb_font_get_var_coords_normalized:
*
* Return value is valid as long as variation coordinates of the font
* are not modified.
diff --git a/src/hb-ot-var-mvar-table.hh b/src/hb-ot-var-mvar-table.hh
new file mode 100644
index 0000000..3cb7498
--- /dev/null
+++ b/src/hb-ot-var-mvar-table.hh
@@ -0,0 +1,110 @@
+/*
+ * Copyright © 2017 Google, Inc.
+ *
+ * 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.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_OT_VAR_MVAR_TABLE_HH
+#define HB_OT_VAR_MVAR_TABLE_HH
+
+#include "hb-ot-layout-common-private.hh"
+
+
+namespace OT {
+
+
+struct VariationValueRecord
+{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ public:
+ Tag valueTag; /* Four-byte tag identifying a font-wide
measure. */
+ ULONG varIdx; /* Outer/inner index into
VariationStore item. */
+
+ public:
+ DEFINE_SIZE_STATIC (8);
+};
+
+
+/*
+ * MVAR -- Metrics Variations Table
+ */
+
+#define HB_OT_TAG_MVAR HB_TAG('M','V','A','R')
+
+struct MVAR
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_MVAR;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (version.sanitize (c) &&
+ likely (version.major == 1) &&
+ c->check_struct (this) &&
+ valueRecordSize >= VariationValueRecord::static_size &&
+ varStore.sanitize (c, this) &&
+ c->check_array (values, valueRecordSize, valueRecordCount));
+ }
+
+ inline float get_var (hb_tag_t tag,
+ int *coords, unsigned int coord_count) const
+ {
+ const VariationValueRecord *record;
+ record = (VariationValueRecord *) bsearch (&tag, values,
+ valueRecordCount,
valueRecordSize,
+ (hb_compare_func_t) tag_compare);
+ if (!record)
+ return 0.;
+
+ return (this+varStore).get_delta (record->varIdx, coords, coord_count);
+ }
+
+protected:
+ static inline int tag_compare (const hb_tag_t *a, const Tag *b)
+ { return b->cmp (*a); }
+
+ protected:
+ FixedVersion<>version; /* Version of the metrics variation table
+ * initially set to 0x00010000u */
+ USHORT reserved; /* Not used; set to 0. */
+ USHORT valueRecordSize;/* The size in bytes of each value record â
+ * must be greater than zero. */
+ USHORT valueRecordCount;/* The number of value records â may be
zero. */
+ OffsetTo<VariationStore>
+ varStore; /* Offset to item variation store table. */
+ BYTE values[VAR]; /* Array of value records. The records must be
+ * in binary order of their valueTag field. */
+
+ public:
+ DEFINE_SIZE_ARRAY (12, values);
+};
+
+} /* namespace OT */
+
+
+#endif /* HB_OT_VAR_MVAR_TABLE_HH */
diff --git a/src/hb-ot-var.cc b/src/hb-ot-var.cc
index d4d16df..b0d3790 100644
--- a/src/hb-ot-var.cc
+++ b/src/hb-ot-var.cc
@@ -29,6 +29,7 @@
#include "hb-ot-layout-private.hh"
#include "hb-ot-var-avar-table.hh"
#include "hb-ot-var-fvar-table.hh"
+#include "hb-ot-var-mvar-table.hh"
#include "hb-ot-var.h"
HB_SHAPER_DATA_ENSURE_DECLARE(ot, face)
commit 67a191164dec2cfcab97363175c58e459f6ff8f9
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Mon Jan 23 23:21:30 2017 -0800
[var] Whitespace
diff --git a/src/hb-ot-var-hvar-table.hh b/src/hb-ot-var-hvar-table.hh
index 3a2a820..f9d801e 100644
--- a/src/hb-ot-var-hvar-table.hh
+++ b/src/hb-ot-var-hvar-table.hh
@@ -78,10 +78,10 @@ struct DeltaSetIndexMap
{ return (format & 0xF) + 1; }
protected:
- USHORT format; /* A packed field that describes the compressed
+ USHORT format; /* A packed field that describes the compressed
* representation of delta-set indices. */
- USHORT mapCount; /* The number of mapping entries. */
- BYTE mapData[VAR]; /* The delta-set index mapping data. */
+ USHORT mapCount; /* The number of mapping entries. */
+ BYTE mapData[VAR]; /* The delta-set index mapping data. */
public:
DEFINE_SIZE_ARRAY (4, mapData);
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