appveyor.yml | 1
src/Makefile.sources | 1
src/hb-open-type-private.hh | 3
src/hb-ot-cbdt-table.hh | 347 ++++++++++++++++++++++++++++++++++++++++++++
src/hb-ot-font.cc | 93 +++++++++++
win32/detectenv-msvc.mak | 4
win32/generate-msvc.mak | 2
7 files changed, 448 insertions(+), 3 deletions(-)
New commits:
commit c27d6fcf8db6f02e075dd1868ae67d878fff39d4
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 22:43:05 2016 -0800
[cbdt] Last of sanitization fixes
Should be all good now..
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index 5e02170..1a2d382 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -215,22 +215,25 @@ struct hb_ot_face_cbdt_accelerator_t
const OT::CBLC *cblc;
const OT::CBDT *cbdt;
- float upem = 0.0f;
+ unsigned int cbdt_len;
+ float upem;
inline void init (hb_face_t *face)
{
- this->cblc_blob = OT::Sanitizer<OT::CBLC>::sanitize (face->reference_table
(HB_OT_TAG_CBLC));
- this->cbdt_blob = OT::Sanitizer<OT::CBDT>::sanitize (face->reference_table
(HB_OT_TAG_CBDT));
+ upem = face->get_upem();
+
+ cblc_blob = OT::Sanitizer<OT::CBLC>::sanitize (face->reference_table
(HB_OT_TAG_CBLC));
+ cbdt_blob = OT::Sanitizer<OT::CBDT>::sanitize (face->reference_table
(HB_OT_TAG_CBDT));
+ cbdt_len = hb_blob_get_length (cbdt_blob);
- if (hb_blob_get_length (this->cblc_blob) == 0) {
+ if (hb_blob_get_length (cblc_blob) == 0) {
cblc = NULL;
cbdt = NULL;
return; /* Not a bitmap font. */
}
- cblc = OT::Sanitizer<OT::CBLC>::lock_instance (this->cblc_blob);
- cbdt = OT::Sanitizer<OT::CBDT>::lock_instance (this->cbdt_blob);
+ cblc = OT::Sanitizer<OT::CBLC>::lock_instance (cblc_blob);
+ cbdt = OT::Sanitizer<OT::CBDT>::lock_instance (cbdt_blob);
- upem = face->get_upem();
}
inline void fini (void)
@@ -263,9 +266,15 @@ struct hb_ot_face_cbdt_accelerator_t
if (!subtable_record->get_image_data (glyph, &image_offset, &image_length,
&image_format))
return false;
+ if (unlikely (image_offset > cbdt_len || cbdt_len - image_offset <
image_length))
+ return false;
+
switch (image_format)
{
case 17: {
+ if (unlikely (image_length < OT::GlyphBitmapDataFormat17::min_size))
+ return false;
+
const OT::GlyphBitmapDataFormat17& glyphFormat17 =
OT::StructAtOffset<OT::GlyphBitmapDataFormat17> (this->cbdt,
image_offset);
glyphFormat17.glyphMetrics.get_extents (extents);
commit d495fc5e38038f4cfb20425b1109324fa70bf2f9
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 21:36:42 2016 -0800
[cbdt] Clean up some more
Almost there..
diff --git a/src/hb-ot-cbdt-table.hh b/src/hb-ot-cbdt-table.hh
index 3a7cc99..4319067 100644
--- a/src/hb-ot-cbdt-table.hh
+++ b/src/hb-ot-cbdt-table.hh
@@ -39,6 +39,14 @@ struct SmallGlyphMetrics
return_trace (c->check_struct (this));
}
+ inline void get_extents (hb_glyph_extents_t *extents) const
+ {
+ extents->x_bearing = bearingX;
+ extents->y_bearing = bearingY;
+ extents->width = width;
+ extents->height = height;
+ }
+
BYTE height;
BYTE width;
CHAR bearingX;
@@ -75,17 +83,14 @@ struct SBitLineMetrics
/*
* Index Subtables.
*/
-struct IndexSubtable
+struct IndexSubtableHeader
{
- USHORT firstGlyphIndex;
- USHORT lastGlyphIndex;
- ULONG offsetToSubtable;
-
- DEFINE_SIZE_STATIC(8);
-};
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
-struct IndexSubHeader
-{
USHORT indexFormat;
USHORT imageFormat;
ULONG imageDataOffset;
@@ -95,12 +100,108 @@ struct IndexSubHeader
struct IndexSubtableFormat1
{
- IndexSubHeader header;
- ULONG offsetArrayZ[VAR];
+ inline bool sanitize (hb_sanitize_context_t *c, unsigned int glyph_count)
const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ c->check_array (offsetArrayZ, offsetArrayZ[0].static_size,
glyph_count + 1));
+ }
+
+ bool get_image_data (unsigned int idx,
+ unsigned int *offset,
+ unsigned int *length) const
+ {
+ if (unlikely (offsetArrayZ[idx + 1] <= offsetArrayZ[idx]))
+ return false;
+
+ *offset = header.imageDataOffset + offsetArrayZ[idx];
+ *length = offsetArrayZ[idx + 1] - offsetArrayZ[idx];
+ return true;
+ }
+
+ IndexSubtableHeader header;
+ Offset<ULONG> offsetArrayZ[VAR];
DEFINE_SIZE_ARRAY(8, offsetArrayZ);
};
+struct IndexSubtable
+{
+ inline bool sanitize (hb_sanitize_context_t *c, unsigned int glyph_count)
const
+ {
+ TRACE_SANITIZE (this);
+ if (!u.header.sanitize (c)) return_trace (false);
+ switch (u.header.indexFormat) {
+ case 1: return_trace (u.format1.sanitize (c, glyph_count));
+ default:return_trace (true);
+ }
+ }
+
+ inline bool get_extents (hb_glyph_extents_t *extents) const
+ {
+ switch (u.header.indexFormat) {
+ case 2: case 5: /* TODO */
+ case 1: case 3: case 4: /* Variable-metrics formats do not have metrics
here. */
+ default:return (false);
+ }
+ }
+
+ bool get_image_data (unsigned int idx,
+ unsigned int *offset,
+ unsigned int *length,
+ unsigned int *format) const
+ {
+ *format = u.header.imageFormat;
+ switch (u.header.indexFormat) {
+ case 1: return u.format1.get_image_data (idx, offset, length);
+ default: return false;
+ }
+ }
+
+ protected:
+ union {
+ IndexSubtableHeader header;
+ IndexSubtableFormat1 format1;
+ } u;
+ public:
+ DEFINE_SIZE_UNION (8, header);
+};
+
+struct IndexSubtableRecord
+{
+ inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ firstGlyphIndex <= lastGlyphIndex &&
+ offsetToSubtable.sanitize (c, this, lastGlyphIndex -
firstGlyphIndex + 1));
+ }
+
+ inline bool get_extents (hb_glyph_extents_t *extents) const
+ {
+ return (this+offsetToSubtable).get_extents (extents);
+ }
+
+ bool get_image_data (unsigned int gid,
+ unsigned int *offset,
+ unsigned int *length,
+ unsigned int *format) const
+ {
+ if (gid < firstGlyphIndex || gid > lastGlyphIndex)
+ {
+ return false;
+ }
+ return (this+offsetToSubtable).get_image_data (gid - firstGlyphIndex,
+ offset, length, format);
+ }
+
+ USHORT firstGlyphIndex;
+ USHORT lastGlyphIndex;
+ OffsetTo<IndexSubtable, ULONG> offsetToSubtable;
+
+ DEFINE_SIZE_STATIC(8);
+};
+
/*
* Glyph Bitmap Data Formats.
*/
@@ -119,11 +220,16 @@ struct IndexSubtableArray
inline bool sanitize (hb_sanitize_context_t *c, unsigned int count) const
{
TRACE_SANITIZE (this);
- return_trace (c->check_struct (this)); // XXX
+ if (unlikely (!c->check_array (&indexSubtablesZ,
indexSubtablesZ[0].static_size, sizeof (count))))
+ return_trace (false);
+ for (unsigned int i = 0; i < count; i++)
+ if (unlikely (!indexSubtablesZ[i].sanitize (c, this)))
+ return_trace (false);
+ return_trace (true);
}
public:
- const IndexSubtable* find_table (hb_codepoint_t glyph, unsigned int
numTables) const
+ const IndexSubtableRecord* find_table (hb_codepoint_t glyph, unsigned int
numTables) const
{
for (unsigned int i = 0; i < numTables; ++i)
{
@@ -137,7 +243,7 @@ struct IndexSubtableArray
}
protected:
- IndexSubtable indexSubtablesZ[VAR];
+ IndexSubtableRecord indexSubtablesZ[VAR];
public:
DEFINE_SIZE_ARRAY(0, indexSubtablesZ);
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index 2d1cf09..5e02170 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -250,41 +250,25 @@ struct hb_ot_face_cbdt_accelerator_t
return false;
}
- const OT::IndexSubtableArray& subtables =
- OT::StructAtOffset<OT::IndexSubtableArray> (this->cblc,
sizeTable->indexSubtableArrayOffset);
- const OT::IndexSubtable* subtable = subtables.find_table(glyph,
sizeTable->numberOfIndexSubtables);
- if (subtable == NULL) {
+ const OT::IndexSubtableArray& subtables = this->cblc +
sizeTable->indexSubtableArrayOffset;
+ const OT::IndexSubtableRecord *subtable_record = subtables.find_table
(glyph, sizeTable->numberOfIndexSubtables);
+ if (subtable_record == NULL) {
return false;
}
- unsigned int offsetToSubtable = sizeTable->indexSubtableArrayOffset +
subtable->offsetToSubtable;
- const OT::IndexSubHeader& header =
- OT::StructAtOffset<OT::IndexSubHeader> (this->cblc,
offsetToSubtable);
+ if (subtable_record->get_extents (extents))
+ return true;
- unsigned int imageDataOffset = header.imageDataOffset;
- switch (header.indexFormat)
- {
- case 1:
- {
- const OT::IndexSubtableFormat1& format1 =
- OT::StructAtOffset<OT::IndexSubtableFormat1> (this->cblc,
offsetToSubtable);
- imageDataOffset += format1.offsetArrayZ[glyph -
subtable->firstGlyphIndex];
- }
- break;
- default:
- // TODO: Support other index subtable format.
- return false;
- }
+ unsigned int image_offset = 0, image_length = 0, image_format = 0;
+ if (!subtable_record->get_image_data (glyph, &image_offset, &image_length,
&image_format))
+ return false;
- switch (header.imageFormat)
+ switch (image_format)
{
case 17: {
const OT::GlyphBitmapDataFormat17& glyphFormat17 =
- OT::StructAtOffset<OT::GlyphBitmapDataFormat17> (this->cbdt,
imageDataOffset);
- extents->x_bearing = glyphFormat17.glyphMetrics.bearingX;
- extents->y_bearing = glyphFormat17.glyphMetrics.bearingY;
- extents->width = glyphFormat17.glyphMetrics.width;
- extents->height = -glyphFormat17.glyphMetrics.height;
+ OT::StructAtOffset<OT::GlyphBitmapDataFormat17> (this->cbdt,
image_offset);
+ glyphFormat17.glyphMetrics.get_extents (extents);
}
break;
default:
commit ce09e90e1502d5f944bafd64e51c29e365a963ae
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 20:12:57 2016 -0800
[cbdt] More sanitize work
diff --git a/src/hb-ot-cbdt-table.hh b/src/hb-ot-cbdt-table.hh
index dda42f2..3a7cc99 100644
--- a/src/hb-ot-cbdt-table.hh
+++ b/src/hb-ot-cbdt-table.hh
@@ -72,32 +72,6 @@ struct SBitLineMetrics
DEFINE_SIZE_STATIC(12);
};
-struct BitmapSizeTable
-{
- inline bool sanitize (hb_sanitize_context_t *c) const
- {
- TRACE_SANITIZE (this);
- return_trace (c->check_struct (this) &&
- horizontal.sanitize (c) &&
- vertical.sanitize (c));
- }
-
- ULONG indexSubtableArrayOffset;
- ULONG indexTablesSize;
- ULONG numberOfIndexSubtables;
- ULONG colorRef;
- SBitLineMetrics horizontal;
- SBitLineMetrics vertical;
- USHORT startGlyphIndex;
- USHORT endGlyphIndex;
- BYTE ppemX;
- BYTE ppemY;
- BYTE bitDepth;
- CHAR flags;
-
- DEFINE_SIZE_STATIC(48);
-};
-
/*
* Index Subtables.
*/
@@ -142,6 +116,12 @@ struct GlyphBitmapDataFormat17
struct IndexSubtableArray
{
+ inline bool sanitize (hb_sanitize_context_t *c, unsigned int count) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this)); // XXX
+ }
+
public:
const IndexSubtable* find_table (hb_codepoint_t glyph, unsigned int
numTables) const
{
@@ -158,6 +138,37 @@ struct IndexSubtableArray
protected:
IndexSubtable indexSubtablesZ[VAR];
+
+ public:
+ DEFINE_SIZE_ARRAY(0, indexSubtablesZ);
+};
+
+struct BitmapSizeTable
+{
+ inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ indexSubtableArrayOffset.sanitize (c, base,
numberOfIndexSubtables) &&
+ c->check_range (&(base+indexSubtableArrayOffset),
indexTablesSize) &&
+ horizontal.sanitize (c) &&
+ vertical.sanitize (c));
+ }
+
+ OffsetTo<IndexSubtableArray, ULONG> indexSubtableArrayOffset;
+ ULONG indexTablesSize;
+ ULONG numberOfIndexSubtables;
+ ULONG colorRef;
+ SBitLineMetrics horizontal;
+ SBitLineMetrics vertical;
+ USHORT startGlyphIndex;
+ USHORT endGlyphIndex;
+ BYTE ppemX;
+ BYTE ppemY;
+ BYTE bitDepth;
+ CHAR flags;
+
+ DEFINE_SIZE_STATIC(48);
};
/*
@@ -175,7 +186,7 @@ struct CBLC
TRACE_SANITIZE (this);
return_trace (c->check_struct (this) &&
likely (version.major == 2 || version.major == 3) &&
- sizeTables.sanitize (c));
+ sizeTables.sanitize (c, this));
}
public:
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index 25a1ef6..2d1cf09 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -262,30 +262,34 @@ struct hb_ot_face_cbdt_accelerator_t
OT::StructAtOffset<OT::IndexSubHeader> (this->cblc,
offsetToSubtable);
unsigned int imageDataOffset = header.imageDataOffset;
- switch (header.indexFormat) {
- case 1: {
- const OT::IndexSubtableFormat1& format1 =
- OT::StructAtOffset<OT::IndexSubtableFormat1> (this->cblc,
offsetToSubtable);
- imageDataOffset += format1.offsetArrayZ[glyph -
subtable->firstGlyphIndex];
- switch (header.imageFormat) {
- case 17: {
- const OT::GlyphBitmapDataFormat17& glyphFormat17 =
- OT::StructAtOffset<OT::GlyphBitmapDataFormat17> (this->cbdt,
imageDataOffset);
- extents->x_bearing = glyphFormat17.glyphMetrics.bearingX;
- extents->y_bearing = glyphFormat17.glyphMetrics.bearingY;
- extents->width = glyphFormat17.glyphMetrics.width;
- extents->height = -glyphFormat17.glyphMetrics.height;
- }
- break;
- default:
- // TODO: Support other image formats.
- return false;
- }
+ switch (header.indexFormat)
+ {
+ case 1:
+ {
+ const OT::IndexSubtableFormat1& format1 =
+ OT::StructAtOffset<OT::IndexSubtableFormat1> (this->cblc,
offsetToSubtable);
+ imageDataOffset += format1.offsetArrayZ[glyph -
subtable->firstGlyphIndex];
+ }
+ break;
+ default:
+ // TODO: Support other index subtable format.
+ return false;
+ }
+
+ switch (header.imageFormat)
+ {
+ case 17: {
+ const OT::GlyphBitmapDataFormat17& glyphFormat17 =
+ OT::StructAtOffset<OT::GlyphBitmapDataFormat17> (this->cbdt,
imageDataOffset);
+ extents->x_bearing = glyphFormat17.glyphMetrics.bearingX;
+ extents->y_bearing = glyphFormat17.glyphMetrics.bearingY;
+ extents->width = glyphFormat17.glyphMetrics.width;
+ extents->height = -glyphFormat17.glyphMetrics.height;
}
break;
default:
- // TODO: Support other index subtable format.
- return false;
+ // TODO: Support other image formats.
+ return false;
}
/* Convert to the font units. */
commit 70eb2ff682344688635cebb716fee0b73557c925
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 19:51:23 2016 -0800
Check for offset overflows during sanitize
diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index 6b64378..66f1c08 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -806,6 +806,7 @@ struct OffsetTo : Offset<OffsetType>
if (unlikely (!c->check_struct (this))) return_trace (false);
unsigned int offset = *this;
if (unlikely (!offset)) return_trace (true);
+ if (unlikely (!c->check_range (base, offset))) return_trace (false);
const Type &obj = StructAtOffset<Type> (base, offset);
return_trace (likely (obj.sanitize (c)) || neuter (c));
}
@@ -816,6 +817,7 @@ struct OffsetTo : Offset<OffsetType>
if (unlikely (!c->check_struct (this))) return_trace (false);
unsigned int offset = *this;
if (unlikely (!offset)) return_trace (true);
+ if (unlikely (!c->check_range (base, offset))) return_trace (false);
const Type &obj = StructAtOffset<Type> (base, offset);
return_trace (likely (obj.sanitize (c, user_data)) || neuter (c));
}
commit 4b58c9e326acde09d389c699014e4e7f6259f50a
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 19:25:54 2016 -0800
[cbdt] Start fixing sanitization (or lack thereof)
diff --git a/src/hb-ot-cbdt-table.hh b/src/hb-ot-cbdt-table.hh
index 7615138..dda42f2 100644
--- a/src/hb-ot-cbdt-table.hh
+++ b/src/hb-ot-cbdt-table.hh
@@ -33,6 +33,12 @@ namespace OT {
struct SmallGlyphMetrics
{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
BYTE height;
BYTE width;
CHAR bearingX;
@@ -42,7 +48,14 @@ struct SmallGlyphMetrics
DEFINE_SIZE_STATIC(5);
};
-struct SBitLineMetrics {
+struct SBitLineMetrics
+{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
CHAR ascender;
CHAR decender;
BYTE widthMax;
@@ -61,6 +74,14 @@ struct SBitLineMetrics {
struct BitmapSizeTable
{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) &&
+ horizontal.sanitize (c) &&
+ vertical.sanitize (c));
+ }
+
ULONG indexSubtableArrayOffset;
ULONG indexTablesSize;
ULONG numberOfIndexSubtables;
@@ -94,41 +115,49 @@ struct IndexSubHeader
USHORT indexFormat;
USHORT imageFormat;
ULONG imageDataOffset;
+
+ DEFINE_SIZE_STATIC(8);
};
struct IndexSubtableFormat1
{
IndexSubHeader header;
- ULONG offsetArray[VAR];
+ ULONG offsetArrayZ[VAR];
+
+ DEFINE_SIZE_ARRAY(8, offsetArrayZ);
};
/*
* Glyph Bitmap Data Formats.
*/
+
struct GlyphBitmapDataFormat17
{
SmallGlyphMetrics glyphMetrics;
ULONG dataLen;
- BYTE data[VAR];
+ BYTE dataZ[VAR];
+
+ DEFINE_SIZE_ARRAY(9, dataZ);
};
struct IndexSubtableArray
{
public:
- const IndexSubtable* find_table(hb_codepoint_t glyph, unsigned int
numTables) const
+ const IndexSubtable* find_table (hb_codepoint_t glyph, unsigned int
numTables) const
{
- for (unsigned int i = 0; i < numTables; ++i) {
- unsigned int firstGlyphIndex = indexSubtables[i].firstGlyphIndex;
- unsigned int lastGlyphIndex = indexSubtables[i].lastGlyphIndex;
+ for (unsigned int i = 0; i < numTables; ++i)
+ {
+ unsigned int firstGlyphIndex = indexSubtablesZ[i].firstGlyphIndex;
+ unsigned int lastGlyphIndex = indexSubtablesZ[i].lastGlyphIndex;
if (firstGlyphIndex <= glyph && glyph <= lastGlyphIndex) {
- return &indexSubtables[i];
+ return &indexSubtablesZ[i];
}
}
return NULL;
}
protected:
- IndexSubtable indexSubtables[VAR];
+ IndexSubtable indexSubtablesZ[VAR];
};
/*
@@ -144,17 +173,19 @@ struct CBLC
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
- return_trace (true);
+ return_trace (c->check_struct (this) &&
+ likely (version.major == 2 || version.major == 3) &&
+ sizeTables.sanitize (c));
}
public:
- const BitmapSizeTable* find_table(hb_codepoint_t glyph) const
+ const BitmapSizeTable* find_table (hb_codepoint_t glyph) const
{
// TODO: Make it possible to select strike.
- const uint32_t tableSize = numSizes;
- for (uint32_t i = 0; i < tableSize; ++i) {
- unsigned int startGlyphIndex = sizeTables[i].startGlyphIndex;
- unsigned int endGlyphIndex = sizeTables[i].endGlyphIndex;
+ unsigned int count = sizeTables.len;
+ for (uint32_t i = 0; i < count; ++i) {
+ unsigned int startGlyphIndex = sizeTables.array[i].startGlyphIndex;
+ unsigned int endGlyphIndex = sizeTables.array[i].endGlyphIndex;
if (startGlyphIndex <= glyph && glyph <= endGlyphIndex) {
return &sizeTables[i];
}
@@ -163,10 +194,11 @@ struct CBLC
}
protected:
- ULONG version;
- ULONG numSizes;
+ FixedVersion<>version;
+ ArrayOf<BitmapSizeTable, ULONG> sizeTables;
- BitmapSizeTable sizeTables[VAR];
+ public:
+ DEFINE_SIZE_ARRAY(8, sizeTables);
};
/*
@@ -181,11 +213,16 @@ struct CBDT
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
- return_trace (true);
+ return_trace (c->check_struct (this) &&
+ likely (version.major == 2 || version.major == 3));
}
protected:
- BYTE data[VAR];
+ FixedVersion<>version;
+ BYTE dataZ[VAR];
+
+ public:
+ DEFINE_SIZE_ARRAY(4, dataZ);
};
} /* namespace OT */
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index c53fcd5..25a1ef6 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -210,10 +210,10 @@ struct hb_ot_face_glyf_accelerator_t
struct hb_ot_face_cbdt_accelerator_t
{
- hb_blob_t *cblc_blob = NULL;
- hb_blob_t *cbdt_blob = NULL;
- const OT::CBLC *cblc = NULL;
- const OT::CBDT *cbdt = NULL;
+ hb_blob_t *cblc_blob;
+ hb_blob_t *cbdt_blob;
+ const OT::CBLC *cblc;
+ const OT::CBDT *cbdt;
float upem = 0.0f;
@@ -223,6 +223,8 @@ struct hb_ot_face_cbdt_accelerator_t
this->cbdt_blob = OT::Sanitizer<OT::CBDT>::sanitize (face->reference_table
(HB_OT_TAG_CBDT));
if (hb_blob_get_length (this->cblc_blob) == 0) {
+ cblc = NULL;
+ cbdt = NULL;
return; /* Not a bitmap font. */
}
cblc = OT::Sanitizer<OT::CBLC>::lock_instance (this->cblc_blob);
@@ -233,10 +235,8 @@ struct hb_ot_face_cbdt_accelerator_t
inline void fini (void)
{
- if (this->cblc_blob) {
- hb_blob_destroy (this->cblc_blob);
- hb_blob_destroy (this->cbdt_blob);
- }
+ hb_blob_destroy (this->cblc_blob);
+ hb_blob_destroy (this->cbdt_blob);
}
inline bool get_extents (hb_codepoint_t glyph, hb_glyph_extents_t *extents)
const
@@ -266,7 +266,7 @@ struct hb_ot_face_cbdt_accelerator_t
case 1: {
const OT::IndexSubtableFormat1& format1 =
OT::StructAtOffset<OT::IndexSubtableFormat1> (this->cblc,
offsetToSubtable);
- imageDataOffset += format1.offsetArray[glyph -
subtable->firstGlyphIndex];
+ imageDataOffset += format1.offsetArrayZ[glyph -
subtable->firstGlyphIndex];
switch (header.imageFormat) {
case 17: {
const OT::GlyphBitmapDataFormat17& glyphFormat17 =
@@ -288,7 +288,7 @@ struct hb_ot_face_cbdt_accelerator_t
return false;
}
- // Convert to the font units.
+ /* Convert to the font units. */
extents->x_bearing *= upem / (float)(sizeTable->ppemX);
extents->y_bearing *= upem / (float)(sizeTable->ppemY);
extents->width *= upem / (float)(sizeTable->ppemX);
@@ -558,7 +558,7 @@ hb_ot_get_glyph_extents (hb_font_t *font HB_UNUSED,
{
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
bool ret = ot_font->glyf->get_extents (glyph, extents);
- if ( !ret )
+ if (!ret)
ret = ot_font->cbdt->get_extents (glyph, extents);
extents->x_bearing = font->em_scale_x (extents->x_bearing);
extents->y_bearing = font->em_scale_y (extents->y_bearing);
commit b92ba7bafcd9545a401fb871eb342e6284032c47
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 15:21:43 2016 -0800
[CBDT] Use CHAR instead of int8_t
diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index df683ca..6b64378 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -650,6 +650,7 @@ struct IntType
DEFINE_SIZE_STATIC (Size);
};
+typedef IntType<int8_t , 1> CHAR; /* 8-bit signed integer. */
typedef IntType<uint8_t , 1> BYTE; /* 8-bit unsigned integer. */
typedef IntType<uint16_t, 2> USHORT; /* 16-bit unsigned integer. */
typedef IntType<int16_t, 2> SHORT; /* 16-bit signed integer. */
diff --git a/src/hb-ot-cbdt-table.hh b/src/hb-ot-cbdt-table.hh
index 17f15dc..7615138 100644
--- a/src/hb-ot-cbdt-table.hh
+++ b/src/hb-ot-cbdt-table.hh
@@ -35,26 +35,26 @@ struct SmallGlyphMetrics
{
BYTE height;
BYTE width;
- int8_t bearingX;
- int8_t bearingY;
+ CHAR bearingX;
+ CHAR bearingY;
BYTE advance;
DEFINE_SIZE_STATIC(5);
};
struct SBitLineMetrics {
- int8_t ascender;
- int8_t decender;
+ CHAR ascender;
+ CHAR decender;
BYTE widthMax;
- int8_t caretSlopeNumerator;
- int8_t caretSlopeDenominator;
- int8_t caretOffset;
- int8_t minOriginSB;
- int8_t minAdvanceSB;
- int8_t maxBeforeBL;
- int8_t minAfterBL;
- int8_t padding1;
- int8_t padding2;
+ CHAR caretSlopeNumerator;
+ CHAR caretSlopeDenominator;
+ CHAR caretOffset;
+ CHAR minOriginSB;
+ CHAR minAdvanceSB;
+ CHAR maxBeforeBL;
+ CHAR minAfterBL;
+ CHAR padding1;
+ CHAR padding2;
DEFINE_SIZE_STATIC(12);
};
@@ -72,7 +72,7 @@ struct BitmapSizeTable
BYTE ppemX;
BYTE ppemY;
BYTE bitDepth;
- int8_t flags;
+ CHAR flags;
DEFINE_SIZE_STATIC(48);
};
commit efca7bf97f9967af4fa399a6665b723af643cecd
Author: Behdad Esfahbod <beh...@behdad.org>
Date: Fri Dec 2 15:11:37 2016 -0800
Rename 'ebdt' to 'cbdt' since we only support the PNG format
diff --git a/src/Makefile.sources b/src/Makefile.sources
index 8d2f3c6..166793a 100644
--- a/src/Makefile.sources
+++ b/src/Makefile.sources
@@ -20,8 +20,8 @@ HB_BASE_sources = \
hb-object-private.hh \
hb-open-file-private.hh \
hb-open-type-private.hh \
+ hb-ot-cbdt-table.hh \
hb-ot-cmap-table.hh \
- hb-ot-ebdt-table.hh \
hb-ot-glyf-table.hh \
hb-ot-head-table.hh \
hb-ot-hhea-table.hh \
diff --git a/src/hb-ot-cbdt-table.hh b/src/hb-ot-cbdt-table.hh
new file mode 100644
index 0000000..17f15dc
--- /dev/null
+++ b/src/hb-ot-cbdt-table.hh
@@ -0,0 +1,193 @@
+/*
+ * Copyright © 2016 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): Seigo Nonaka
+ */
+
+#ifndef HB_OT_CBDT_TABLE_HH
+#define HB_OT_CBDT_TABLE_HH
+
+#include "hb-open-type-private.hh"
+
+namespace OT {
+
+struct SmallGlyphMetrics
+{
+ BYTE height;
+ BYTE width;
+ int8_t bearingX;
+ int8_t bearingY;
+ BYTE advance;
+
+ DEFINE_SIZE_STATIC(5);
+};
+
+struct SBitLineMetrics {
+ int8_t ascender;
+ int8_t decender;
+ BYTE widthMax;
+ int8_t caretSlopeNumerator;
+ int8_t caretSlopeDenominator;
+ int8_t caretOffset;
+ int8_t minOriginSB;
+ int8_t minAdvanceSB;
+ int8_t maxBeforeBL;
+ int8_t minAfterBL;
+ int8_t padding1;
+ int8_t padding2;
+
+ DEFINE_SIZE_STATIC(12);
+};
+
+struct BitmapSizeTable
+{
+ ULONG indexSubtableArrayOffset;
+ ULONG indexTablesSize;
+ ULONG numberOfIndexSubtables;
+ ULONG colorRef;
+ SBitLineMetrics horizontal;
+ SBitLineMetrics vertical;
+ USHORT startGlyphIndex;
+ USHORT endGlyphIndex;
+ BYTE ppemX;
+ BYTE ppemY;
+ BYTE bitDepth;
+ int8_t flags;
+
+ DEFINE_SIZE_STATIC(48);
+};
+
+/*
+ * Index Subtables.
+ */
+struct IndexSubtable
+{
+ USHORT firstGlyphIndex;
+ USHORT lastGlyphIndex;
+ ULONG offsetToSubtable;
+
+ DEFINE_SIZE_STATIC(8);
+};
+
+struct IndexSubHeader
+{
+ USHORT indexFormat;
+ USHORT imageFormat;
+ ULONG imageDataOffset;
+};
+
+struct IndexSubtableFormat1
+{
+ IndexSubHeader header;
+ ULONG offsetArray[VAR];
+};
+
+/*
+ * Glyph Bitmap Data Formats.
+ */
+struct GlyphBitmapDataFormat17
+{
+ SmallGlyphMetrics glyphMetrics;
+ ULONG dataLen;
+ BYTE data[VAR];
+};
+
+struct IndexSubtableArray
+{
+ public:
+ const IndexSubtable* find_table(hb_codepoint_t glyph, unsigned int
numTables) const
+ {
+ for (unsigned int i = 0; i < numTables; ++i) {
+ unsigned int firstGlyphIndex = indexSubtables[i].firstGlyphIndex;
+ unsigned int lastGlyphIndex = indexSubtables[i].lastGlyphIndex;
+ if (firstGlyphIndex <= glyph && glyph <= lastGlyphIndex) {
+ return &indexSubtables[i];
+ }
+ }
+ return NULL;
+ }
+
+ protected:
+ IndexSubtable indexSubtables[VAR];
+};
+
+/*
+ * CBLC -- Color Bitmap Location Table
+ */
+
+#define HB_OT_TAG_CBLC HB_TAG('C','B','L','C')
+
+struct CBLC
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_CBLC;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (true);
+ }
+
+ public:
+ const BitmapSizeTable* find_table(hb_codepoint_t glyph) const
+ {
+ // TODO: Make it possible to select strike.
+ const uint32_t tableSize = numSizes;
+ for (uint32_t i = 0; i < tableSize; ++i) {
+ unsigned int startGlyphIndex = sizeTables[i].startGlyphIndex;
+ unsigned int endGlyphIndex = sizeTables[i].endGlyphIndex;
+ if (startGlyphIndex <= glyph && glyph <= endGlyphIndex) {
+ return &sizeTables[i];
+ }
+ }
+ return NULL;
+ }
+
+ protected:
+ ULONG version;
+ ULONG numSizes;
+
+ BitmapSizeTable sizeTables[VAR];
+};
+
+/*
+ * CBDT -- Color Bitmap Data Table
+ */
+#define HB_OT_TAG_CBDT HB_TAG('C','B','D','T')
+
+struct CBDT
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_CBDT;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (true);
+ }
+
+ protected:
+ BYTE data[VAR];
+};
+
+} /* namespace OT */
+
+#endif /* HB_OT_CBDT_TABLE_HH */
diff --git a/src/hb-ot-ebdt-table.hh b/src/hb-ot-ebdt-table.hh
deleted file mode 100644
index f3d0de6..0000000
--- a/src/hb-ot-ebdt-table.hh
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright © 2016 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): Seigo Nonaka
- */
-
-#ifndef HB_OT_EBDT_TABLE_HH
-#define HB_OT_EBDT_TABLE_HH
-
-#include "hb-open-type-private.hh"
-
-namespace OT {
-
-struct SmallGlyphMetrics
-{
- BYTE height;
- BYTE width;
- int8_t bearingX;
- int8_t bearingY;
- BYTE advance;
-
- DEFINE_SIZE_STATIC(5);
-};
-
-struct SBitLineMetrics {
- int8_t ascender;
- int8_t decender;
- BYTE widthMax;
- int8_t caretSlopeNumerator;
- int8_t caretSlopeDenominator;
- int8_t caretOffset;
- int8_t minOriginSB;
- int8_t minAdvanceSB;
- int8_t maxBeforeBL;
- int8_t minAfterBL;
- int8_t padding1;
- int8_t padding2;
-
- DEFINE_SIZE_STATIC(12);
-};
-
-struct BitmapSizeTable
-{
- ULONG indexSubtableArrayOffset;
- ULONG indexTablesSize;
- ULONG numberOfIndexSubtables;
- ULONG colorRef;
- SBitLineMetrics horizontal;
- SBitLineMetrics vertical;
- USHORT startGlyphIndex;
- USHORT endGlyphIndex;
- BYTE ppemX;
- BYTE ppemY;
- BYTE bitDepth;
- int8_t flags;
-
- DEFINE_SIZE_STATIC(48);
-};
-
-/*
- * Index Subtables.
- */
-struct IndexSubtable
-{
- USHORT firstGlyphIndex;
- USHORT lastGlyphIndex;
- ULONG offsetToSubtable;
-
- DEFINE_SIZE_STATIC(8);
-};
-
-struct IndexSubHeader
-{
- USHORT indexFormat;
- USHORT imageFormat;
- ULONG imageDataOffset;
-};
-
-struct IndexSubtableFormat1
-{
- IndexSubHeader header;
- ULONG offsetArray[VAR];
-};
-
-/*
- * Glyph Bitmap Data Formats.
- */
-struct GlyphBitmapDataFormat17
-{
- SmallGlyphMetrics glyphMetrics;
- ULONG dataLen;
- BYTE data[VAR];
-};
-
-struct IndexSubtableArray
-{
- public:
- const IndexSubtable* find_table(hb_codepoint_t glyph, unsigned int
numTables) const
- {
- for (unsigned int i = 0; i < numTables; ++i) {
- unsigned int firstGlyphIndex = indexSubtables[i].firstGlyphIndex;
- unsigned int lastGlyphIndex = indexSubtables[i].lastGlyphIndex;
- if (firstGlyphIndex <= glyph && glyph <= lastGlyphIndex) {
- return &indexSubtables[i];
- }
- }
- return NULL;
- }
-
- protected:
- IndexSubtable indexSubtables[VAR];
-};
-
-/*
- * CBLC -- Color Bitmap Location Table
- */
-
-#define HB_OT_TAG_CBLC HB_TAG('C','B','L','C')
-
-struct CBLC
-{
- static const hb_tag_t tableTag = HB_OT_TAG_CBLC;
-
- inline bool sanitize (hb_sanitize_context_t *c) const
- {
- TRACE_SANITIZE (this);
- return_trace (true);
- }
-
- public:
- const BitmapSizeTable* find_table(hb_codepoint_t glyph) const
- {
- // TODO: Make it possible to select strike.
- const uint32_t tableSize = numSizes;
- for (uint32_t i = 0; i < tableSize; ++i) {
- unsigned int startGlyphIndex = sizeTables[i].startGlyphIndex;
- unsigned int endGlyphIndex = sizeTables[i].endGlyphIndex;
- if (startGlyphIndex <= glyph && glyph <= endGlyphIndex) {
- return &sizeTables[i];
- }
- }
- return NULL;
- }
-
- protected:
- ULONG version;
- ULONG numSizes;
-
- BitmapSizeTable sizeTables[VAR];
-};
-
-/*
- * CBDT -- Color Bitmap Data Table
- */
-#define HB_OT_TAG_CBDT HB_TAG('C','B','D','T')
-
-struct CBDT
-{
- static const hb_tag_t tableTag = HB_OT_TAG_CBDT;
-
- inline bool sanitize (hb_sanitize_context_t *c) const
- {
- TRACE_SANITIZE (this);
- return_trace (true);
- }
-
- protected:
- BYTE data[VAR];
-};
-
-} /* namespace OT */
-
-#endif /* HB_OT_EBDT_TABLE_HH */
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index d9be196..c53fcd5 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -31,7 +31,7 @@
#include "hb-font-private.hh"
#include "hb-ot-cmap-table.hh"
-#include "hb-ot-ebdt-table.hh"
+#include "hb-ot-cbdt-table.hh"
#include "hb-ot-glyf-table.hh"
#include "hb-ot-head-table.hh"
#include "hb-ot-hhea-table.hh"
@@ -208,7 +208,7 @@ struct hb_ot_face_glyf_accelerator_t
}
};
-struct hb_ot_face_ebdt_accelerator_t
+struct hb_ot_face_cbdt_accelerator_t
{
hb_blob_t *cblc_blob = NULL;
hb_blob_t *cbdt_blob = NULL;
@@ -470,7 +470,7 @@ struct hb_ot_font_t
hb_ot_face_metrics_accelerator_t h_metrics;
hb_ot_face_metrics_accelerator_t v_metrics;
hb_lazy_loader_t<hb_ot_face_glyf_accelerator_t> glyf;
- hb_lazy_loader_t<hb_ot_face_ebdt_accelerator_t> ebdt;
+ hb_lazy_loader_t<hb_ot_face_cbdt_accelerator_t> cbdt;
};
@@ -487,7 +487,7 @@ _hb_ot_font_create (hb_face_t *face)
ot_font->v_metrics.init (face, HB_OT_TAG_vhea, HB_OT_TAG_vmtx, HB_TAG_NONE,
ot_font->h_metrics.ascender -
ot_font->h_metrics.descender); /* TODO Can we do this lazily? */
ot_font->glyf.init (face);
- ot_font->ebdt.init (face);
+ ot_font->cbdt.init (face);
return ot_font;
}
@@ -499,7 +499,7 @@ _hb_ot_font_destroy (hb_ot_font_t *ot_font)
ot_font->h_metrics.fini ();
ot_font->v_metrics.fini ();
ot_font->glyf.fini ();
- ot_font->ebdt.fini ();
+ ot_font->cbdt.fini ();
free (ot_font);
}
@@ -559,7 +559,7 @@ hb_ot_get_glyph_extents (hb_font_t *font HB_UNUSED,
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
bool ret = ot_font->glyf->get_extents (glyph, extents);
if ( !ret )
- ret = ot_font->ebdt->get_extents (glyph, extents);
+ ret = ot_font->cbdt->get_extents (glyph, extents);
extents->x_bearing = font->em_scale_x (extents->x_bearing);
extents->y_bearing = font->em_scale_y (extents->y_bearing);
extents->width = font->em_scale_x (extents->width);
commit 831852594b777f250efedb76d19bee1cfc8eeaa4
Author: Seigo Nonaka <n...@google.com>
Date: Fri Dec 2 15:03:50 2016 -0800
Introduce get_extent support for color bitmap font. (#351)
hb_font_get_glyph_extents now works for color bitmap fonts.
Currently only font having index format 1 and image format 17
is supported.
diff --git a/src/Makefile.sources b/src/Makefile.sources
index 5c695c5..8d2f3c6 100644
--- a/src/Makefile.sources
+++ b/src/Makefile.sources
@@ -21,6 +21,7 @@ HB_BASE_sources = \
hb-open-file-private.hh \
hb-open-type-private.hh \
hb-ot-cmap-table.hh \
+ hb-ot-ebdt-table.hh \
hb-ot-glyf-table.hh \
hb-ot-head-table.hh \
hb-ot-hhea-table.hh \
diff --git a/src/hb-ot-ebdt-table.hh b/src/hb-ot-ebdt-table.hh
new file mode 100644
index 0000000..f3d0de6
--- /dev/null
+++ b/src/hb-ot-ebdt-table.hh
@@ -0,0 +1,193 @@
+/*
+ * Copyright © 2016 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): Seigo Nonaka
+ */
+
+#ifndef HB_OT_EBDT_TABLE_HH
+#define HB_OT_EBDT_TABLE_HH
+
+#include "hb-open-type-private.hh"
+
+namespace OT {
+
+struct SmallGlyphMetrics
+{
+ BYTE height;
+ BYTE width;
+ int8_t bearingX;
+ int8_t bearingY;
+ BYTE advance;
+
+ DEFINE_SIZE_STATIC(5);
+};
+
+struct SBitLineMetrics {
+ int8_t ascender;
+ int8_t decender;
+ BYTE widthMax;
+ int8_t caretSlopeNumerator;
+ int8_t caretSlopeDenominator;
+ int8_t caretOffset;
+ int8_t minOriginSB;
+ int8_t minAdvanceSB;
+ int8_t maxBeforeBL;
+ int8_t minAfterBL;
+ int8_t padding1;
+ int8_t padding2;
+
+ DEFINE_SIZE_STATIC(12);
+};
+
+struct BitmapSizeTable
+{
+ ULONG indexSubtableArrayOffset;
+ ULONG indexTablesSize;
+ ULONG numberOfIndexSubtables;
+ ULONG colorRef;
+ SBitLineMetrics horizontal;
+ SBitLineMetrics vertical;
+ USHORT startGlyphIndex;
+ USHORT endGlyphIndex;
+ BYTE ppemX;
+ BYTE ppemY;
+ BYTE bitDepth;
+ int8_t flags;
+
+ DEFINE_SIZE_STATIC(48);
+};
+
+/*
+ * Index Subtables.
+ */
+struct IndexSubtable
+{
+ USHORT firstGlyphIndex;
+ USHORT lastGlyphIndex;
+ ULONG offsetToSubtable;
+
+ DEFINE_SIZE_STATIC(8);
+};
+
+struct IndexSubHeader
+{
+ USHORT indexFormat;
+ USHORT imageFormat;
+ ULONG imageDataOffset;
+};
+
+struct IndexSubtableFormat1
+{
+ IndexSubHeader header;
+ ULONG offsetArray[VAR];
+};
+
+/*
+ * Glyph Bitmap Data Formats.
+ */
+struct GlyphBitmapDataFormat17
+{
+ SmallGlyphMetrics glyphMetrics;
+ ULONG dataLen;
+ BYTE data[VAR];
+};
+
+struct IndexSubtableArray
+{
+ public:
+ const IndexSubtable* find_table(hb_codepoint_t glyph, unsigned int
numTables) const
+ {
+ for (unsigned int i = 0; i < numTables; ++i) {
+ unsigned int firstGlyphIndex = indexSubtables[i].firstGlyphIndex;
+ unsigned int lastGlyphIndex = indexSubtables[i].lastGlyphIndex;
+ if (firstGlyphIndex <= glyph && glyph <= lastGlyphIndex) {
+ return &indexSubtables[i];
+ }
+ }
+ return NULL;
+ }
+
+ protected:
+ IndexSubtable indexSubtables[VAR];
+};
+
+/*
+ * CBLC -- Color Bitmap Location Table
+ */
+
+#define HB_OT_TAG_CBLC HB_TAG('C','B','L','C')
+
+struct CBLC
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_CBLC;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (true);
+ }
+
+ public:
+ const BitmapSizeTable* find_table(hb_codepoint_t glyph) const
+ {
+ // TODO: Make it possible to select strike.
+ const uint32_t tableSize = numSizes;
+ for (uint32_t i = 0; i < tableSize; ++i) {
+ unsigned int startGlyphIndex = sizeTables[i].startGlyphIndex;
+ unsigned int endGlyphIndex = sizeTables[i].endGlyphIndex;
+ if (startGlyphIndex <= glyph && glyph <= endGlyphIndex) {
+ return &sizeTables[i];
+ }
+ }
+ return NULL;
+ }
+
+ protected:
+ ULONG version;
+ ULONG numSizes;
+
+ BitmapSizeTable sizeTables[VAR];
+};
+
+/*
+ * CBDT -- Color Bitmap Data Table
+ */
+#define HB_OT_TAG_CBDT HB_TAG('C','B','D','T')
+
+struct CBDT
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_CBDT;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (true);
+ }
+
+ protected:
+ BYTE data[VAR];
+};
+
+} /* namespace OT */
+
+#endif /* HB_OT_EBDT_TABLE_HH */
diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc
index 20f2f89..d9be196 100644
--- a/src/hb-ot-font.cc
+++ b/src/hb-ot-font.cc
@@ -31,6 +31,7 @@
#include "hb-font-private.hh"
#include "hb-ot-cmap-table.hh"
+#include "hb-ot-ebdt-table.hh"
#include "hb-ot-glyf-table.hh"
#include "hb-ot-head-table.hh"
#include "hb-ot-hhea-table.hh"
@@ -207,6 +208,96 @@ struct hb_ot_face_glyf_accelerator_t
}
};
+struct hb_ot_face_ebdt_accelerator_t
+{
+ hb_blob_t *cblc_blob = NULL;
+ hb_blob_t *cbdt_blob = NULL;
+ const OT::CBLC *cblc = NULL;
+ const OT::CBDT *cbdt = NULL;
+
+ float upem = 0.0f;
+
+ inline void init (hb_face_t *face)
+ {
+ this->cblc_blob = OT::Sanitizer<OT::CBLC>::sanitize (face->reference_table
(HB_OT_TAG_CBLC));
+ this->cbdt_blob = OT::Sanitizer<OT::CBDT>::sanitize (face->reference_table
(HB_OT_TAG_CBDT));
+
+ if (hb_blob_get_length (this->cblc_blob) == 0) {
+ return; /* Not a bitmap font. */
+ }
+ cblc = OT::Sanitizer<OT::CBLC>::lock_instance (this->cblc_blob);
+ cbdt = OT::Sanitizer<OT::CBDT>::lock_instance (this->cbdt_blob);
+
+ upem = face->get_upem();
+ }
+
+ inline void fini (void)
+ {
+ if (this->cblc_blob) {
+ hb_blob_destroy (this->cblc_blob);
+ hb_blob_destroy (this->cbdt_blob);
+ }
+ }
+
+ inline bool get_extents (hb_codepoint_t glyph, hb_glyph_extents_t *extents)
const
+ {
+ if (cblc == NULL) {
+ return false; // Not a color bitmap font.
+ }
+
+ const OT::BitmapSizeTable* sizeTable = this->cblc->find_table(glyph);
+ if (sizeTable == NULL) {
+ return false;
+ }
+
+ const OT::IndexSubtableArray& subtables =
+ OT::StructAtOffset<OT::IndexSubtableArray> (this->cblc,
sizeTable->indexSubtableArrayOffset);
+ const OT::IndexSubtable* subtable = subtables.find_table(glyph,
sizeTable->numberOfIndexSubtables);
+ if (subtable == NULL) {
+ return false;
+ }
+
+ unsigned int offsetToSubtable = sizeTable->indexSubtableArrayOffset +
subtable->offsetToSubtable;
+ const OT::IndexSubHeader& header =
+ OT::StructAtOffset<OT::IndexSubHeader> (this->cblc,
offsetToSubtable);
+
+ unsigned int imageDataOffset = header.imageDataOffset;
+ switch (header.indexFormat) {
+ case 1: {
+ const OT::IndexSubtableFormat1& format1 =
+ OT::StructAtOffset<OT::IndexSubtableFormat1> (this->cblc,
offsetToSubtable);
+ imageDataOffset += format1.offsetArray[glyph -
subtable->firstGlyphIndex];
+ switch (header.imageFormat) {
+ case 17: {
+ const OT::GlyphBitmapDataFormat17& glyphFormat17 =
+ OT::StructAtOffset<OT::GlyphBitmapDataFormat17> (this->cbdt,
imageDataOffset);
+ extents->x_bearing = glyphFormat17.glyphMetrics.bearingX;
+ extents->y_bearing = glyphFormat17.glyphMetrics.bearingY;
+ extents->width = glyphFormat17.glyphMetrics.width;
+ extents->height = -glyphFormat17.glyphMetrics.height;
+ }
+ break;
+ default:
+ // TODO: Support other image formats.
+ return false;
+ }
+ }
+ break;
+ default:
+ // TODO: Support other index subtable format.
+ return false;
+ }
+
+ // Convert to the font units.
+ extents->x_bearing *= upem / (float)(sizeTable->ppemX);
+ extents->y_bearing *= upem / (float)(sizeTable->ppemY);
+ extents->width *= upem / (float)(sizeTable->ppemX);
+ extents->height *= upem / (float)(sizeTable->ppemY);
+
+ return true;
+ }
+};
+
typedef bool (*hb_cmap_get_glyph_func_t) (const void *obj,
hb_codepoint_t codepoint,
hb_codepoint_t *glyph);
@@ -379,6 +470,7 @@ struct hb_ot_font_t
hb_ot_face_metrics_accelerator_t h_metrics;
hb_ot_face_metrics_accelerator_t v_metrics;
hb_lazy_loader_t<hb_ot_face_glyf_accelerator_t> glyf;
+ hb_lazy_loader_t<hb_ot_face_ebdt_accelerator_t> ebdt;
};
@@ -395,6 +487,7 @@ _hb_ot_font_create (hb_face_t *face)
ot_font->v_metrics.init (face, HB_OT_TAG_vhea, HB_OT_TAG_vmtx, HB_TAG_NONE,
ot_font->h_metrics.ascender -
ot_font->h_metrics.descender); /* TODO Can we do this lazily? */
ot_font->glyf.init (face);
+ ot_font->ebdt.init (face);
return ot_font;
}
@@ -406,6 +499,7 @@ _hb_ot_font_destroy (hb_ot_font_t *ot_font)
ot_font->h_metrics.fini ();
ot_font->v_metrics.fini ();
ot_font->glyf.fini ();
+ ot_font->ebdt.fini ();
free (ot_font);
}
@@ -464,6 +558,8 @@ hb_ot_get_glyph_extents (hb_font_t *font HB_UNUSED,
{
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
bool ret = ot_font->glyf->get_extents (glyph, extents);
+ if ( !ret )
+ ret = ot_font->ebdt->get_extents (glyph, extents);
extents->x_bearing = font->em_scale_x (extents->x_bearing);
extents->y_bearing = font->em_scale_y (extents->y_bearing);
extents->width = font->em_scale_x (extents->width);
commit 261837e7202ec584f653f379851e1c6457396b07
Author: Ebrahim Byagowi <ebra...@gnu.org>
Date: Fri Oct 28 21:49:11 2016 +0330
Fix "nmake install" when ADDITIONAL_LIB_DIR is provided and test it on CI
(#356)
diff --git a/appveyor.yml b/appveyor.yml
index ddcc9a4..2a0e7c5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -43,6 +43,7 @@ build_script:
- 'if "%compiler%"=="msvc" C:\msys64\usr\bin\bash -lc "cd
$APPVEYOR_BUILD_FOLDER; PATH=$PATH:/mingw64/bin:/mingw32/bin; ./autogen.sh;
make distdir"'
- 'if "%compiler%"=="msvc" cd harfbuzz-*\win32'
- 'if "%compiler%"=="msvc" nmake /f Makefile.vc CFG=%CFG% UNISCRIBE=1
DIRECTWRITE=1 FREETYPE=1
FREETYPE_DIR=..\..\vcpkg\installed\%VCPKG_ARCH%\include
ADDITIONAL_LIB_DIR=..\..\vcpkg\installed\%VCPKG_ARCH%\lib'
+ - 'if "%compiler%"=="msvc" nmake /f Makefile.vc CFG=%CFG% UNISCRIBE=1
DIRECTWRITE=1 FREETYPE=1 install'
- 'if "%compiler%"=="msys2" C:\msys64\usr\bin\bash -lc "pacman --noconfirm
-S
mingw-w64-$MSYS2_ARCH-{freetype,cairo,icu,gettext,gobject-introspection,gcc,gcc-libs,glib2,graphite2,pkg-config}"'
- 'if "%compiler%"=="msys2" C:\msys64\usr\bin\bash -lc "cd
$APPVEYOR_BUILD_FOLDER; PATH=$PATH:/mingw64/bin:/mingw32/bin; ./autogen.sh
--with-uniscribe --with-freetype --with-glib --with-gobject --with-cairo
--with-icu --with-graphite2 --build=$MINGW_CHOST --host=$MINGW_CHOST
--prefix=$MINGW_PREFIX; make; make check"'
diff --git a/win32/detectenv-msvc.mak b/win32/detectenv-msvc.mak
index 41f4bd0..80a5eed 100644
--- a/win32/detectenv-msvc.mak
+++ b/win32/detectenv-msvc.mak
@@ -129,10 +129,10 @@ LDFLAGS_ARCH = /machine:x86
!if "$(VALID_CFGSET)" == "TRUE"
CFLAGS = $(CFLAGS_ADD) /W3 /Zi /I.. /I..\src /I. /I$(PREFIX)\include
-LDFLAGS_BASE = $(LDFLAGS_ARCH) /libpath:$(PREFIX)\lib /DEBUG
!if "$(ADDITIONAL_LIB_DIR)" != ""
-LDFLAGS_BASE = $(LDFLAGS_ARCH) /libpath:$(ADDITIONAL_LIB_DIR)
+ADDITIONAL_LIB_ARG = /libpath:$(ADDITIONAL_LIB_DIR)
!endif
+LDFLAGS_BASE = $(LDFLAGS_ARCH) /libpath:$(PREFIX)\lib $(ADDITIONAL_LIB_ARG)
/DEBUG
!if "$(CFG)" == "debug"
LDFLAGS = $(LDFLAGS_BASE)
diff --git a/win32/generate-msvc.mak b/win32/generate-msvc.mak
index 7c17a94..57cfb6e 100644
--- a/win32/generate-msvc.mak
+++ b/win32/generate-msvc.mak
@@ -23,4 +23,4 @@ $(HB_GOBJECT_ENUM_GENERATED_SOURCES):
..\src\hb-gobject-enums.h.tmpl ..\src\hb-g
# Create the build directories
$(CFG)\$(PLAT)\harfbuzz $(CFG)\$(PLAT)\harfbuzz-icu
$(CFG)\$(PLAT)\harfbuzz-gobject $(CFG)\$(PLAT)\util:
- @-mkdir -p $@
+ @-md $@
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