#ifndef HB_OT_LAYOUT_COMMON_PRIVATE_HH
#define HB_OT_LAYOUT_COMMON_PRIVATE_HH
+#include "hb-private.hh"
+#include "hb-debug.hh"
#include "hb-ot-layout-private.hh"
#include "hb-open-type-private.hh"
#include "hb-set-private.hh"
namespace OT {
-#define TRACE_DISPATCH(this, format) \
- hb_auto_trace_t<context_t::max_debug_depth, typename context_t::return_t> trace \
- (&c->debug_depth, c->get_name (), this, HB_FUNC, \
- "format %d", (int) format);
-
-
#define NOT_COVERED ((unsigned int) -1)
}
template <typename set_t>
- inline void add_coverage (set_t *glyphs) const {
- glyphs->add_range (start, end);
+ inline bool add_coverage (set_t *glyphs) const {
+ return glyphs->add_range (start, end);
}
GlyphID start; /* First GlyphID in the range */
GlyphID end; /* Last GlyphID in the range */
- USHORT value; /* Value */
+ HBUINT16 value; /* Value */
public:
DEFINE_SIZE_STATIC (6);
};
-DEFINE_NULL_DATA (RangeRecord, "\000\001");
+DEFINE_NULL_DATA (OT, RangeRecord, "\000\001");
struct IndexArray : ArrayOf<Index>
unsigned int *_indexes /* OUT */) const
{
if (_count) {
- const USHORT *arr = this->sub_array (start_offset, _count);
+ const HBUINT16 *arr = this->sub_array (start_offset, _count);
unsigned int count = *_count;
for (unsigned int i = 0; i < count; i++)
_indexes[i] = arr[i];
}
inline bool sanitize (hb_sanitize_context_t *c,
- const Record<LangSys>::sanitize_closure_t * = NULL) const
+ const Record<LangSys>::sanitize_closure_t * = nullptr) const
{
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) && featureIndex.sanitize (c));
}
- Offset<> lookupOrderZ; /* = Null (reserved for an offset to a
+ Offset16 lookupOrderZ; /* = Null (reserved for an offset to a
* reordering table) */
- USHORT reqFeatureIndex;/* Index of a feature required for this
+ HBUINT16 reqFeatureIndex;/* Index of a feature required for this
* language system--if no required features
* = 0xFFFFu */
IndexArray featureIndex; /* Array of indices into the FeatureList */
public:
DEFINE_SIZE_ARRAY (6, featureIndex);
};
-DEFINE_NULL_DATA (LangSys, "\0\0\xFF\xFF");
+DEFINE_NULL_DATA (OT, LangSys, "\0\0\xFF\xFF");
struct Script
inline const LangSys& get_default_lang_sys (void) const { return this+defaultLangSys; }
inline bool sanitize (hb_sanitize_context_t *c,
- const Record<Script>::sanitize_closure_t * = NULL) const
+ const Record<Script>::sanitize_closure_t * = nullptr) const
{
TRACE_SANITIZE (this);
return_trace (defaultLangSys.sanitize (c, this) && langSys.sanitize (c, this));
typedef RecordListOf<Script> ScriptList;
-/* http://www.microsoft.com/typography/otspec/features_pt.htm#size */
+/* https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#size */
struct FeatureParamsSize
{
inline bool sanitize (hb_sanitize_context_t *c) const
*
* The specification for this feature tag is in the "OpenType Layout Tag
* Registry". You can see a copy of this at:
- * http://partners.adobe.com/public/developer/opentype/index_tag8.html#size
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#tag-size
*
* Here is one set of rules to determine if the 'size' feature is built
* correctly, or as by the older versions of MakeOTF. You may be able to do
* better.
*
* Assume that the offset to the size feature is according to specification,
- * and make the following value checks. If it fails, assume the the size
+ * and make the following value checks. If it fails, assume the size
* feature is calculated as versions of MakeOTF before the AFDKO 2.0 built it.
* If this fails, reject the 'size' feature. The older makeOTF's calculated the
* offset from the beginning of the FeatureList table, rather than from the
return_trace (true);
}
- USHORT designSize; /* Represents the design size in 720/inch
+ HBUINT16 designSize; /* Represents the design size in 720/inch
* units (decipoints). The design size entry
* must be non-zero. When there is a design
* size but no recommended size range, the
* rest of the array will consist of zeros. */
- USHORT subfamilyID; /* Has no independent meaning, but serves
+ HBUINT16 subfamilyID; /* Has no independent meaning, but serves
* as an identifier that associates fonts
* in a subfamily. All fonts which share a
* Preferred or Font Family name and which
* same subfamily value. If this value is
* zero, the remaining fields in the array
* will be ignored. */
- USHORT subfamilyNameID;/* If the preceding value is non-zero, this
+ HBUINT16 subfamilyNameID;/* If the preceding value is non-zero, this
* value must be set in the range 256 - 32767
* (inclusive). It records the value of a
* field in the name table, which must
* subfamily in a menu. Applications will
* choose the appropriate version based on
* their selection criteria. */
- USHORT rangeStart; /* Large end of the recommended usage range
+ HBUINT16 rangeStart; /* Large end of the recommended usage range
* (inclusive), stored in 720/inch units
* (decipoints). */
- USHORT rangeEnd; /* Small end of the recommended usage range
+ HBUINT16 rangeEnd; /* Small end of the recommended usage range
(exclusive), stored in 720/inch units
* (decipoints). */
public:
DEFINE_SIZE_STATIC (10);
};
-/* http://www.microsoft.com/typography/otspec/features_pt.htm#ssxx */
+/* https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#ssxx */
struct FeatureParamsStylisticSet
{
inline bool sanitize (hb_sanitize_context_t *c) const
return_trace (c->check_struct (this));
}
- USHORT version; /* (set to 0): This corresponds to a “minor”
+ HBUINT16 version; /* (set to 0): This corresponds to a “minor”
* version number. Additional data may be
* added to the end of this Feature Parameters
* table in the future. */
- USHORT uiNameID; /* The 'name' table name ID that specifies a
+ NameID uiNameID; /* The 'name' table name ID that specifies a
* string (or strings, for multiple languages)
* for a user-interface label for this
* feature. The values of uiLabelNameId and
DEFINE_SIZE_STATIC (4);
};
-/* http://www.microsoft.com/typography/otspec/features_ae.htm#cv01-cv99 */
+/* https://docs.microsoft.com/en-us/typography/opentype/spec/features_ae#cv01-cv99 */
struct FeatureParamsCharacterVariants
{
inline bool sanitize (hb_sanitize_context_t *c) const
characters.sanitize (c));
}
- USHORT format; /* Format number is set to 0. */
- USHORT featUILableNameID; /* The ‘name’ table name ID that
+ HBUINT16 format; /* Format number is set to 0. */
+ NameID featUILableNameID; /* The ‘name’ table name ID that
* specifies a string (or strings,
* for multiple languages) for a
* user-interface label for this
- * feature. (May be NULL.) */
- USHORT featUITooltipTextNameID;/* The ‘name’ table name ID that
+ * feature. (May be nullptr.) */
+ NameID featUITooltipTextNameID;/* The ‘name’ table name ID that
* specifies a string (or strings,
* for multiple languages) that an
* application can use for tooltip
* text for this feature. (May be
- * NULL.) */
- USHORT sampleTextNameID; /* The ‘name’ table name ID that
+ * nullptr.) */
+ NameID sampleTextNameID; /* The ‘name’ table name ID that
* specifies sample text that
* illustrates the effect of this
- * feature. (May be NULL.) */
- USHORT numNamedParameters; /* Number of named parameters. (May
+ * feature. (May be nullptr.) */
+ HBUINT16 numNamedParameters; /* Number of named parameters. (May
* be zero.) */
- USHORT firstParamUILabelNameID;/* The first ‘name’ table name ID
+ NameID firstParamUILabelNameID;/* The first ‘name’ table name ID
* used to specify strings for
* user-interface labels for the
* feature parameters. (Must be zero
* if numParameters is zero.) */
- ArrayOf<UINT24>
+ ArrayOf<HBUINT24>
characters; /* Array of the Unicode Scalar Value
* of the characters for which this
* feature provides glyph variants.
{ return this+featureParams; }
inline bool sanitize (hb_sanitize_context_t *c,
- const Record<Feature>::sanitize_closure_t *closure) const
+ const Record<Feature>::sanitize_closure_t *closure = nullptr) const
{
TRACE_SANITIZE (this);
if (unlikely (!(c->check_struct (this) && lookupIndex.sanitize (c))))
typedef RecordListOf<Feature> FeatureList;
-struct LookupFlag : USHORT
+struct LookupFlag : HBUINT16
{
enum Flags {
RightToLeft = 0x0001u,
unsigned int flag = lookupFlag;
if (unlikely (flag & LookupFlag::UseMarkFilteringSet))
{
- const USHORT &markFilteringSet = StructAfter<USHORT> (subTable);
+ const HBUINT16 &markFilteringSet = StructAfter<HBUINT16> (subTable);
flag += (markFilteringSet << 16);
}
return flag;
if (unlikely (!subTable.serialize (c, num_subtables))) return_trace (false);
if (lookupFlag & LookupFlag::UseMarkFilteringSet)
{
- USHORT &markFilteringSet = StructAfter<USHORT> (subTable);
+ HBUINT16 &markFilteringSet = StructAfter<HBUINT16> (subTable);
markFilteringSet.set (lookup_props >> 16);
}
return_trace (true);
if (!(c->check_struct (this) && subTable.sanitize (c))) return_trace (false);
if (lookupFlag & LookupFlag::UseMarkFilteringSet)
{
- const USHORT &markFilteringSet = StructAfter<USHORT> (subTable);
+ const HBUINT16 &markFilteringSet = StructAfter<HBUINT16> (subTable);
if (!markFilteringSet.sanitize (c)) return_trace (false);
}
return_trace (true);
}
private:
- USHORT lookupType; /* Different enumerations for GSUB and GPOS */
- USHORT lookupFlag; /* Lookup qualifiers */
- ArrayOf<Offset<> >
+ HBUINT16 lookupType; /* Different enumerations for GSUB and GPOS */
+ HBUINT16 lookupFlag; /* Lookup qualifiers */
+ ArrayOf<Offset16>
subTable; /* Array of SubTables */
- USHORT markFilteringSetX[VAR]; /* Index (base 0) into GDEF mark glyph sets
+ HBUINT16 markFilteringSetX[VAR]; /* Index (base 0) into GDEF mark glyph sets
* structure. This field is only present if bit
* UseMarkFilteringSet of lookup flags is set. */
public:
inline unsigned int get_coverage (hb_codepoint_t glyph_id) const
{
int i = glyphArray.bsearch (glyph_id);
- ASSERT_STATIC (((unsigned int) -1) == NOT_COVERED);
+ static_assert ((((unsigned int) -1) == NOT_COVERED), "");
return i;
}
if (unlikely (!c->extend (glyphArray))) return_trace (false);
for (unsigned int i = 0; i < num_glyphs; i++)
glyphArray[i] = glyphs[i];
- glyphs.advance (num_glyphs);
+ glyphs += num_glyphs;
return_trace (true);
}
}
template <typename set_t>
- inline void add_coverage (set_t *glyphs) const {
- unsigned int count = glyphArray.len;
- for (unsigned int i = 0; i < count; i++)
- glyphs->add (glyphArray[i]);
+ inline bool add_coverage (set_t *glyphs) const {
+ return glyphs->add_sorted_array (glyphArray.arrayZ, glyphArray.len);
}
public:
inline void init (const struct CoverageFormat1 &c_) { c = &c_; i = 0; };
inline bool more (void) { return i < c->glyphArray.len; }
inline void next (void) { i++; }
- inline uint16_t get_glyph (void) { return c->glyphArray[i]; }
- inline uint16_t get_coverage (void) { return i; }
+ inline hb_codepoint_t get_glyph (void) { return c->glyphArray[i]; }
+ inline unsigned int get_coverage (void) { return i; }
private:
const struct CoverageFormat1 *c;
private:
protected:
- USHORT coverageFormat; /* Format identifier--format = 1 */
+ HBUINT16 coverageFormat; /* Format identifier--format = 1 */
SortedArrayOf<GlyphID>
glyphArray; /* Array of GlyphIDs--in numerical order */
public:
} else {
rangeRecord[range].end = glyphs[i];
}
- glyphs.advance (num_glyphs);
+ glyphs += num_glyphs;
return_trace (true);
}
}
template <typename set_t>
- inline void add_coverage (set_t *glyphs) const {
+ inline bool add_coverage (set_t *glyphs) const {
unsigned int count = rangeRecord.len;
for (unsigned int i = 0; i < count; i++)
- rangeRecord[i].add_coverage (glyphs);
+ if (unlikely (!rangeRecord[i].add_coverage (glyphs)))
+ return false;
+ return true;
}
public:
/* Older compilers need this to be public. */
- struct Iter {
- inline void init (const CoverageFormat2 &c_) {
+ struct Iter
+ {
+ inline void init (const CoverageFormat2 &c_)
+ {
c = &c_;
coverage = 0;
i = 0;
j = c->rangeRecord.len ? c_.rangeRecord[0].start : 0;
}
inline bool more (void) { return i < c->rangeRecord.len; }
- inline void next (void) {
- coverage++;
- if (j == c->rangeRecord[i].end) {
+ inline void next (void)
+ {
+ if (j >= c->rangeRecord[i].end)
+ {
i++;
if (more ())
+ {
j = c->rangeRecord[i].start;
+ coverage = c->rangeRecord[i].value;
+ }
return;
}
+ coverage++;
j++;
}
- inline uint16_t get_glyph (void) { return j; }
- inline uint16_t get_coverage (void) { return coverage; }
+ inline hb_codepoint_t get_glyph (void) { return j; }
+ inline unsigned int get_coverage (void) { return coverage; }
private:
const struct CoverageFormat2 *c;
private:
protected:
- USHORT coverageFormat; /* Format identifier--format = 2 */
+ HBUINT16 coverageFormat; /* Format identifier--format = 2 */
SortedArrayOf<RangeRecord>
rangeRecord; /* Array of glyph ranges--ordered by
* Start GlyphID. rangeCount entries
inline unsigned int get_coverage (hb_codepoint_t glyph_id) const
{
switch (u.format) {
- case 1: return u.format1.get_coverage(glyph_id);
- case 2: return u.format2.get_coverage(glyph_id);
+ case 1: return u.format1.get_coverage (glyph_id);
+ case 2: return u.format2.get_coverage (glyph_id);
default:return NOT_COVERED;
}
}
}
}
+ /* Might return false if array looks unsorted.
+ * Used for faster rejection of corrupt data. */
template <typename set_t>
- inline void add_coverage (set_t *glyphs) const {
+ inline bool add_coverage (set_t *glyphs) const {
switch (u.format) {
- case 1: u.format1.add_coverage (glyphs); break;
- case 2: u.format2.add_coverage (glyphs); break;
- default: break;
+ case 1: return u.format1.add_coverage (glyphs);
+ case 2: return u.format2.add_coverage (glyphs);
+ default:return false;
}
}
struct Iter {
- Iter (void) : format (0) {};
+ Iter (void) : format (0), u () {};
inline void init (const Coverage &c_) {
format = c_.u.format;
switch (format) {
default: break;
}
}
- inline uint16_t get_glyph (void) {
+ inline hb_codepoint_t get_glyph (void) {
switch (format) {
case 1: return u.format1.get_glyph ();
case 2: return u.format2.get_glyph ();
default:return 0;
}
}
- inline uint16_t get_coverage (void) {
+ inline unsigned int get_coverage (void) {
switch (format) {
case 1: return u.format1.get_coverage ();
case 2: return u.format2.get_coverage ();
private:
unsigned int format;
union {
+ CoverageFormat2::Iter format2; /* Put this one first since it's larger; helps shut up compiler. */
CoverageFormat1::Iter format1;
- CoverageFormat2::Iter format2;
} u;
};
protected:
union {
- USHORT format; /* Format identifier */
+ HBUINT16 format; /* Format identifier */
CoverageFormat1 format1;
CoverageFormat2 format2;
} u;
}
template <typename set_t>
- inline void add_class (set_t *glyphs, unsigned int klass) const {
+ inline bool add_coverage (set_t *glyphs) const {
+ unsigned int start = 0;
unsigned int count = classValue.len;
for (unsigned int i = 0; i < count; i++)
+ {
+ if (classValue[i])
+ continue;
+
+ if (start != i)
+ if (unlikely (!glyphs->add_range (startGlyph + start, startGlyph + i)))
+ return false;
+
+ start = i + 1;
+ }
+ if (start != count)
+ if (unlikely (!glyphs->add_range (startGlyph + start, startGlyph + count)))
+ return false;
+
+ return true;
+ }
+
+ template <typename set_t>
+ inline bool add_class (set_t *glyphs, unsigned int klass) const {
+ unsigned int count = classValue.len;
+ for (unsigned int i = 0; i < count; i++)
+ {
if (classValue[i] == klass)
glyphs->add (startGlyph + i);
+ }
+ return true;
}
inline bool intersects_class (const hb_set_t *glyphs, unsigned int klass) const {
if (klass == 0)
{
/* Match if there's any glyph that is not listed! */
- hb_codepoint_t g = -1;
+ hb_codepoint_t g = HB_SET_VALUE_INVALID;
if (!hb_set_next (glyphs, &g))
return false;
if (g < startGlyph)
}
protected:
- USHORT classFormat; /* Format identifier--format = 1 */
+ HBUINT16 classFormat; /* Format identifier--format = 1 */
GlyphID startGlyph; /* First GlyphID of the classValueArray */
- ArrayOf<USHORT>
+ ArrayOf<HBUINT16>
classValue; /* Array of Class Values--one per GlyphID */
public:
DEFINE_SIZE_ARRAY (6, classValue);
}
template <typename set_t>
- inline void add_class (set_t *glyphs, unsigned int klass) const {
+ inline bool add_coverage (set_t *glyphs) const {
+ unsigned int count = rangeRecord.len;
+ for (unsigned int i = 0; i < count; i++)
+ if (rangeRecord[i].value)
+ if (unlikely (!rangeRecord[i].add_coverage (glyphs)))
+ return false;
+ return true;
+ }
+
+ template <typename set_t>
+ inline bool add_class (set_t *glyphs, unsigned int klass) const {
unsigned int count = rangeRecord.len;
for (unsigned int i = 0; i < count; i++)
+ {
if (rangeRecord[i].value == klass)
- rangeRecord[i].add_coverage (glyphs);
+ if (unlikely (!rangeRecord[i].add_coverage (glyphs)))
+ return false;
+ }
+ return true;
}
inline bool intersects_class (const hb_set_t *glyphs, unsigned int klass) const {
if (klass == 0)
{
/* Match if there's any glyph that is not listed! */
- hb_codepoint_t g = (hb_codepoint_t) -1;
+ hb_codepoint_t g = HB_SET_VALUE_INVALID;
for (unsigned int i = 0; i < count; i++)
{
if (!hb_set_next (glyphs, &g))
return true;
g = rangeRecord[i].end;
}
- if (g != (hb_codepoint_t) -1 && hb_set_next (glyphs, &g))
+ if (g != HB_SET_VALUE_INVALID && hb_set_next (glyphs, &g))
return true;
/* Fall through. */
}
}
protected:
- USHORT classFormat; /* Format identifier--format = 2 */
+ HBUINT16 classFormat; /* Format identifier--format = 2 */
SortedArrayOf<RangeRecord>
rangeRecord; /* Array of glyph ranges--ordered by
* Start GlyphID */
inline unsigned int get_class (hb_codepoint_t glyph_id) const
{
switch (u.format) {
- case 1: return u.format1.get_class(glyph_id);
- case 2: return u.format2.get_class(glyph_id);
+ case 1: return u.format1.get_class (glyph_id);
+ case 2: return u.format2.get_class (glyph_id);
default:return 0;
}
}
}
}
- inline void add_class (hb_set_t *glyphs, unsigned int klass) const {
+ /* Might return false if array looks unsorted.
+ * Used for faster rejection of corrupt data. */
+ template <typename set_t>
+ inline bool add_coverage (set_t *glyphs) const {
+ switch (u.format) {
+ case 1: return u.format1.add_coverage (glyphs);
+ case 2: return u.format2.add_coverage (glyphs);
+ default:return false;
+ }
+ }
+
+ /* Might return false if array looks unsorted.
+ * Used for faster rejection of corrupt data. */
+ template <typename set_t>
+ inline bool add_class (set_t *glyphs, unsigned int klass) const {
switch (u.format) {
- case 1: u.format1.add_class (glyphs, klass); return;
- case 2: u.format2.add_class (glyphs, klass); return;
- default:return;
+ case 1: return u.format1.add_class (glyphs, klass);
+ case 2: return u.format2.add_class (glyphs, klass);
+ default:return false;
}
}
protected:
union {
- USHORT format; /* Format identifier */
+ HBUINT16 format; /* Format identifier */
ClassDefFormat1 format1;
ClassDefFormat2 format2;
} u;
/*
+ * Item Variation Store
+ */
+
+struct VarRegionAxis
+{
+ inline float evaluate (int coord) const
+ {
+ int start = startCoord, peak = peakCoord, end = endCoord;
+
+ /* TODO Move these to sanitize(). */
+ if (unlikely (start > peak || peak > end))
+ return 1.;
+ if (unlikely (start < 0 && end > 0 && peak != 0))
+ return 1.;
+
+ if (peak == 0 || coord == peak)
+ return 1.;
+
+ if (coord <= start || end <= coord)
+ return 0.;
+
+ /* Interpolate */
+ if (coord < peak)
+ return float (coord - start) / (peak - start);
+ else
+ return float (end - coord) / (end - peak);
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ /* TODO Handle invalid start/peak/end configs, so we don't
+ * have to do that at runtime. */
+ }
+
+ public:
+ F2DOT14 startCoord;
+ F2DOT14 peakCoord;
+ F2DOT14 endCoord;
+ public:
+ DEFINE_SIZE_STATIC (6);
+};
+
+struct VarRegionList
+{
+ inline float evaluate (unsigned int region_index,
+ int *coords, unsigned int coord_len) const
+ {
+ if (unlikely (region_index >= regionCount))
+ return 0.;
+
+ const VarRegionAxis *axes = axesZ.arrayZ + (region_index * axisCount);
+
+ float v = 1.;
+ unsigned int count = axisCount;
+ for (unsigned int i = 0; i < count; i++)
+ {
+ int coord = i < coord_len ? coords[i] : 0;
+ float factor = axes[i].evaluate (coord);
+ if (factor == 0.f)
+ return 0.;
+ v *= factor;
+ }
+ return v;
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ axesZ.sanitize (c, (unsigned int) axisCount * (unsigned int) regionCount));
+ }
+
+ protected:
+ HBUINT16 axisCount;
+ HBUINT16 regionCount;
+ UnsizedArrayOf<VarRegionAxis>
+ axesZ;
+ public:
+ DEFINE_SIZE_ARRAY (4, axesZ);
+};
+
+struct VarData
+{
+ inline unsigned int get_row_size (void) const
+ { return shortCount + regionIndices.len; }
+
+ inline unsigned int get_size (void) const
+ { return itemCount * get_row_size (); }
+
+ inline float get_delta (unsigned int inner,
+ int *coords, unsigned int coord_count,
+ const VarRegionList ®ions) const
+ {
+ if (unlikely (inner >= itemCount))
+ return 0.;
+
+ unsigned int count = regionIndices.len;
+ unsigned int scount = shortCount;
+
+ const HBUINT8 *bytes = &StructAfter<HBUINT8> (regionIndices);
+ const HBUINT8 *row = bytes + inner * (scount + count);
+
+ float delta = 0.;
+ unsigned int i = 0;
+
+ const HBINT16 *scursor = reinterpret_cast<const HBINT16 *> (row);
+ for (; i < scount; i++)
+ {
+ float scalar = regions.evaluate (regionIndices.arrayZ[i], coords, coord_count);
+ delta += scalar * *scursor++;
+ }
+ const HBINT8 *bcursor = reinterpret_cast<const HBINT8 *> (scursor);
+ for (; i < count; i++)
+ {
+ float scalar = regions.evaluate (regionIndices.arrayZ[i], coords, coord_count);
+ delta += scalar * *bcursor++;
+ }
+
+ return delta;
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ regionIndices.sanitize(c) &&
+ shortCount <= regionIndices.len &&
+ c->check_array (&StructAfter<HBUINT8> (regionIndices),
+ get_row_size (), itemCount));
+ }
+
+ protected:
+ HBUINT16 itemCount;
+ HBUINT16 shortCount;
+ ArrayOf<HBUINT16> regionIndices;
+ HBUINT8 bytesX[VAR];
+ public:
+ DEFINE_SIZE_ARRAY2 (6, regionIndices, bytesX);
+};
+
+struct VariationStore
+{
+ inline float get_delta (unsigned int outer, unsigned int inner,
+ int *coords, unsigned int coord_count) const
+ {
+ if (unlikely (outer >= dataSets.len))
+ return 0.;
+
+ return (this+dataSets[outer]).get_delta (inner,
+ coords, coord_count,
+ this+regions);
+ }
+
+ inline float get_delta (unsigned int index,
+ int *coords, unsigned int coord_count) const
+ {
+ unsigned int outer = index >> 16;
+ unsigned int inner = index & 0xFFFF;
+ return get_delta (outer, inner, coords, coord_count);
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ format == 1 &&
+ regions.sanitize (c, this) &&
+ dataSets.sanitize (c, this));
+ }
+
+ protected:
+ HBUINT16 format;
+ LOffsetTo<VarRegionList> regions;
+ OffsetArrayOf<VarData, HBUINT32> dataSets;
+ public:
+ DEFINE_SIZE_ARRAY (8, dataSets);
+};
+
+/*
+ * Feature Variations
+ */
+
+struct ConditionFormat1
+{
+ friend struct Condition;
+
+ private:
+ inline bool evaluate (const int *coords, unsigned int coord_len) const
+ {
+ int coord = axisIndex < coord_len ? coords[axisIndex] : 0;
+ return filterRangeMinValue <= coord && coord <= filterRangeMaxValue;
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ protected:
+ HBUINT16 format; /* Format identifier--format = 1 */
+ HBUINT16 axisIndex;
+ F2DOT14 filterRangeMinValue;
+ F2DOT14 filterRangeMaxValue;
+ public:
+ DEFINE_SIZE_STATIC (8);
+};
+
+struct Condition
+{
+ inline bool evaluate (const int *coords, unsigned int coord_len) const
+ {
+ switch (u.format) {
+ case 1: return u.format1.evaluate (coords, coord_len);
+ default:return false;
+ }
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ if (!u.format.sanitize (c)) return_trace (false);
+ switch (u.format) {
+ case 1: return_trace (u.format1.sanitize (c));
+ default:return_trace (true);
+ }
+ }
+
+ protected:
+ union {
+ HBUINT16 format; /* Format identifier */
+ ConditionFormat1 format1;
+ } u;
+ public:
+ DEFINE_SIZE_UNION (2, format);
+};
+
+struct ConditionSet
+{
+ inline bool evaluate (const int *coords, unsigned int coord_len) const
+ {
+ unsigned int count = conditions.len;
+ for (unsigned int i = 0; i < count; i++)
+ if (!(this+conditions.arrayZ[i]).evaluate (coords, coord_len))
+ return false;
+ return true;
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (conditions.sanitize (c, this));
+ }
+
+ protected:
+ OffsetArrayOf<Condition, HBUINT32> conditions;
+ public:
+ DEFINE_SIZE_ARRAY (2, conditions);
+};
+
+struct FeatureTableSubstitutionRecord
+{
+ friend struct FeatureTableSubstitution;
+
+ inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && feature.sanitize (c, base));
+ }
+
+ protected:
+ HBUINT16 featureIndex;
+ LOffsetTo<Feature> feature;
+ public:
+ DEFINE_SIZE_STATIC (6);
+};
+
+struct FeatureTableSubstitution
+{
+ inline const Feature *find_substitute (unsigned int feature_index) const
+ {
+ unsigned int count = substitutions.len;
+ for (unsigned int i = 0; i < count; i++)
+ {
+ const FeatureTableSubstitutionRecord &record = substitutions.arrayZ[i];
+ if (record.featureIndex == feature_index)
+ return &(this+record.feature);
+ }
+ return nullptr;
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (version.sanitize (c) &&
+ likely (version.major == 1) &&
+ substitutions.sanitize (c, this));
+ }
+
+ protected:
+ FixedVersion<> version; /* Version--0x00010000u */
+ ArrayOf<FeatureTableSubstitutionRecord>
+ substitutions;
+ public:
+ DEFINE_SIZE_ARRAY (6, substitutions);
+};
+
+struct FeatureVariationRecord
+{
+ friend struct FeatureVariations;
+
+ inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (conditions.sanitize (c, base) &&
+ substitutions.sanitize (c, base));
+ }
+
+ protected:
+ LOffsetTo<ConditionSet>
+ conditions;
+ LOffsetTo<FeatureTableSubstitution>
+ substitutions;
+ public:
+ DEFINE_SIZE_STATIC (8);
+};
+
+struct FeatureVariations
+{
+ static const unsigned int NOT_FOUND_INDEX = 0xFFFFFFFFu;
+
+ inline bool find_index (const int *coords, unsigned int coord_len,
+ unsigned int *index) const
+ {
+ unsigned int count = varRecords.len;
+ for (unsigned int i = 0; i < count; i++)
+ {
+ const FeatureVariationRecord &record = varRecords.arrayZ[i];
+ if ((this+record.conditions).evaluate (coords, coord_len))
+ {
+ *index = i;
+ return true;
+ }
+ }
+ *index = NOT_FOUND_INDEX;
+ return false;
+ }
+
+ inline const Feature *find_substitute (unsigned int variations_index,
+ unsigned int feature_index) const
+ {
+ const FeatureVariationRecord &record = varRecords[variations_index];
+ return (this+record.substitutions).find_substitute (feature_index);
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (version.sanitize (c) &&
+ likely (version.major == 1) &&
+ varRecords.sanitize (c, this));
+ }
+
+ protected:
+ FixedVersion<> version; /* Version--0x00010000u */
+ LArrayOf<FeatureVariationRecord>
+ varRecords;
+ public:
+ DEFINE_SIZE_ARRAY (8, varRecords);
+};
+
+
+/*
* Device Tables
*/
-struct Device
+struct HintingDevice
{
+ friend struct Device;
+
+ private:
inline hb_position_t get_x_delta (hb_font_t *font) const
{ return get_delta (font->x_ppem, font->x_scale); }
inline unsigned int get_size (void) const
{
unsigned int f = deltaFormat;
- if (unlikely (f < 1 || f > 3 || startSize > endSize)) return 3 * USHORT::static_size;
- return USHORT::static_size * (4 + ((endSize - startSize) >> (4 - f)));
+ if (unlikely (f < 1 || f > 3 || startSize > endSize)) return 3 * HBUINT16::static_size;
+ return HBUINT16::static_size * (4 + ((endSize - startSize) >> (4 - f)));
}
inline bool sanitize (hb_sanitize_context_t *c) const
}
protected:
- USHORT startSize; /* Smallest size to correct--in ppem */
- USHORT endSize; /* Largest size to correct--in ppem */
- USHORT deltaFormat; /* Format of DeltaValue array data: 1, 2, or 3
+ HBUINT16 startSize; /* Smallest size to correct--in ppem */
+ HBUINT16 endSize; /* Largest size to correct--in ppem */
+ HBUINT16 deltaFormat; /* Format of DeltaValue array data: 1, 2, or 3
* 1 Signed 2-bit value, 8 values per uint16
* 2 Signed 4-bit value, 4 values per uint16
* 3 Signed 8-bit value, 2 values per uint16
*/
- USHORT deltaValue[VAR]; /* Array of compressed data */
+ HBUINT16 deltaValue[VAR]; /* Array of compressed data */
public:
DEFINE_SIZE_ARRAY (6, deltaValue);
};
+struct VariationDevice
+{
+ friend struct Device;
+
+ private:
+
+ inline hb_position_t get_x_delta (hb_font_t *font, const VariationStore &store) const
+ { return font->em_scalef_x (get_delta (font, store)); }
+
+ inline hb_position_t get_y_delta (hb_font_t *font, const VariationStore &store) const
+ { return font->em_scalef_y (get_delta (font, store)); }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ private:
+
+ inline float get_delta (hb_font_t *font, const VariationStore &store) const
+ {
+ return store.get_delta (outerIndex, innerIndex, font->coords, font->num_coords);
+ }
+
+ protected:
+ HBUINT16 outerIndex;
+ HBUINT16 innerIndex;
+ HBUINT16 deltaFormat; /* Format identifier for this table: 0x0x8000 */
+ public:
+ DEFINE_SIZE_STATIC (6);
+};
+
+struct DeviceHeader
+{
+ protected:
+ HBUINT16 reserved1;
+ HBUINT16 reserved2;
+ public:
+ HBUINT16 format; /* Format identifier */
+ public:
+ DEFINE_SIZE_STATIC (6);
+};
+
+struct Device
+{
+ inline hb_position_t get_x_delta (hb_font_t *font, const VariationStore &store=Null(VariationStore)) const
+ {
+ switch (u.b.format)
+ {
+ case 1: case 2: case 3:
+ return u.hinting.get_x_delta (font);
+ case 0x8000:
+ return u.variation.get_x_delta (font, store);
+ default:
+ return 0;
+ }
+ }
+ inline hb_position_t get_y_delta (hb_font_t *font, const VariationStore &store=Null(VariationStore)) const
+ {
+ switch (u.b.format)
+ {
+ case 1: case 2: case 3:
+ return u.hinting.get_y_delta (font);
+ case 0x8000:
+ return u.variation.get_y_delta (font, store);
+ default:
+ return 0;
+ }
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ if (!u.b.format.sanitize (c)) return_trace (false);
+ switch (u.b.format) {
+ case 1: case 2: case 3:
+ return_trace (u.hinting.sanitize (c));
+ case 0x8000:
+ return_trace (u.variation.sanitize (c));
+ default:
+ return_trace (true);
+ }
+ }
+
+ protected:
+ union {
+ DeviceHeader b;
+ HintingDevice hinting;
+ VariationDevice variation;
+ } u;
+ public:
+ DEFINE_SIZE_UNION (6, b);
+};
+
} /* namespace OT */
projects / platform / upstream / harfbuzz.git / blobdiff