#include "hb-open-type-private.hh"
+/*
+ * CBLC -- Color Bitmap Location
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/cblc
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/eblc
+ * CBDT -- Color Bitmap Data
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/cbdt
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/ebdt
+ */
+#define HB_OT_TAG_CBLC HB_TAG('C','B','L','C')
+#define HB_OT_TAG_CBDT HB_TAG('C','B','D','T')
+
+
namespace OT {
struct SmallGlyphMetrics
extents->height = -height;
}
- HBUINT8 height;
- HBUINT8 width;
- HBINT8 bearingX;
- HBINT8 bearingY;
- HBUINT8 advance;
-
+ HBUINT8 height;
+ HBUINT8 width;
+ HBINT8 bearingX;
+ HBINT8 bearingY;
+ HBUINT8 advance;
+ public:
DEFINE_SIZE_STATIC(5);
};
struct BigGlyphMetrics : SmallGlyphMetrics
{
- HBINT8 vertBearingX;
- HBINT8 vertBearingY;
- HBUINT8 vertAdvance;
-
+ HBINT8 vertBearingX;
+ HBINT8 vertBearingY;
+ HBUINT8 vertAdvance;
+ public:
DEFINE_SIZE_STATIC(8);
};
return_trace (c->check_struct (this));
}
- HBINT8 ascender;
- HBINT8 decender;
- HBUINT8 widthMax;
- HBINT8 caretSlopeNumerator;
- HBINT8 caretSlopeDenominator;
- HBINT8 caretOffset;
- HBINT8 minOriginSB;
- HBINT8 minAdvanceSB;
- HBINT8 maxBeforeBL;
- HBINT8 minAfterBL;
- HBINT8 padding1;
- HBINT8 padding2;
-
+ HBINT8 ascender;
+ HBINT8 decender;
+ HBUINT8 widthMax;
+ HBINT8 caretSlopeNumerator;
+ HBINT8 caretSlopeDenominator;
+ HBINT8 caretOffset;
+ HBINT8 minOriginSB;
+ HBINT8 minAdvanceSB;
+ HBINT8 maxBeforeBL;
+ HBINT8 minAfterBL;
+ HBINT8 padding1;
+ HBINT8 padding2;
+ public:
DEFINE_SIZE_STATIC(12);
};
return_trace (c->check_struct (this));
}
- HBUINT16 indexFormat;
- HBUINT16 imageFormat;
- HBUINT32 imageDataOffset;
-
+ HBUINT16 indexFormat;
+ HBUINT16 imageFormat;
+ HBUINT32 imageDataOffset;
+ public:
DEFINE_SIZE_STATIC(8);
};
return true;
}
- IndexSubtableHeader header;
- Offset<OffsetType> offsetArrayZ[VAR];
-
+ IndexSubtableHeader header;
+ Offset<OffsetType> offsetArrayZ[VAR];
+ public:
DEFINE_SIZE_ARRAY(8, offsetArrayZ);
};
offset, length, format);
}
- HBUINT16 firstGlyphIndex;
- HBUINT16 lastGlyphIndex;
- LOffsetTo<IndexSubtable> offsetToSubtable;
-
+ GlyphID firstGlyphIndex;
+ GlyphID lastGlyphIndex;
+ LOffsetTo<IndexSubtable> offsetToSubtable;
+ public:
DEFINE_SIZE_STATIC(8);
};
struct IndexSubtableArray
{
+ friend struct CBDT;
+
inline bool sanitize (hb_sanitize_context_t *c, unsigned int count) const
{
TRACE_SANITIZE (this);
}
protected:
- IndexSubtableRecord indexSubtablesZ[VAR];
-
+ IndexSubtableRecord indexSubtablesZ[VAR];
public:
DEFINE_SIZE_ARRAY(0, indexSubtablesZ);
};
struct BitmapSizeTable
{
friend struct CBLC;
+ friend struct CBDT;
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
{
}
protected:
- LOffsetTo<IndexSubtableArray> indexSubtableArrayOffset;
- HBUINT32 indexTablesSize;
- HBUINT32 numberOfIndexSubtables;
- HBUINT32 colorRef;
- SBitLineMetrics horizontal;
- SBitLineMetrics vertical;
- HBUINT16 startGlyphIndex;
- HBUINT16 endGlyphIndex;
- HBUINT8 ppemX;
- HBUINT8 ppemY;
- HBUINT8 bitDepth;
- HBINT8 flags;
-
+ LOffsetTo<IndexSubtableArray>
+ indexSubtableArrayOffset;
+ HBUINT32 indexTablesSize;
+ HBUINT32 numberOfIndexSubtables;
+ HBUINT32 colorRef;
+ SBitLineMetrics horizontal;
+ SBitLineMetrics vertical;
+ GlyphID startGlyphIndex;
+ GlyphID endGlyphIndex;
+ HBUINT8 ppemX;
+ HBUINT8 ppemY;
+ HBUINT8 bitDepth;
+ HBINT8 flags;
public:
DEFINE_SIZE_STATIC(48);
};
struct GlyphBitmapDataFormat17
{
- SmallGlyphMetrics glyphMetrics;
- HBUINT32 dataLen;
- HBUINT8 dataZ[VAR];
-
- DEFINE_SIZE_ARRAY(9, dataZ);
+ SmallGlyphMetrics glyphMetrics;
+ LArrayOf<HBUINT8> data;
+ public:
+ DEFINE_SIZE_ARRAY(9, data);
};
+struct GlyphBitmapDataFormat18
+{
+ BigGlyphMetrics glyphMetrics;
+ LArrayOf<HBUINT8> data;
+ public:
+ DEFINE_SIZE_ARRAY(12, data);
+};
-/*
- * CBLC -- Color Bitmap Location Table
- */
-
-#define HB_OT_TAG_CBLC HB_TAG('C','B','L','C')
+struct GlyphBitmapDataFormat19
+{
+ LArrayOf<HBUINT8> data;
+ public:
+ DEFINE_SIZE_ARRAY(4, data);
+};
struct CBLC
{
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;
+ unsigned int startGlyphIndex = sizeTables.arrayZ[i].startGlyphIndex;
+ unsigned int endGlyphIndex = sizeTables.arrayZ[i].endGlyphIndex;
if (startGlyphIndex <= glyph && glyph <= endGlyphIndex)
{
*x_ppem = sizeTables[i].ppemX;
protected:
FixedVersion<> version;
LArrayOf<BitmapSizeTable> sizeTables;
-
public:
DEFINE_SIZE_ARRAY(8, sizeTables);
};
-/*
- * 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;
cbdt = nullptr;
return; /* Not a bitmap font. */
}
- cblc = Sanitizer<CBLC>::lock_instance (cblc_blob);
- cbdt = Sanitizer<CBDT>::lock_instance (cbdt_blob);
+ cblc = cblc_blob->as<CBLC> ();
+ cbdt = cbdt_blob->as<CBDT> ();
}
return true;
}
+ inline void dump (void (*callback) (const uint8_t* data, unsigned int length,
+ unsigned int group, unsigned int gid)) const
+ {
+ if (!cblc)
+ return; // Not a color bitmap font.
+
+ for (unsigned int i = 0; i < cblc->sizeTables.len; ++i)
+ {
+ const BitmapSizeTable &sizeTable = cblc->sizeTables[i];
+ const IndexSubtableArray &subtable_array = cblc+sizeTable.indexSubtableArrayOffset;
+ for (unsigned int j = 0; j < sizeTable.numberOfIndexSubtables; ++j)
+ {
+ const IndexSubtableRecord &subtable_record = subtable_array.indexSubtablesZ[j];
+ for (unsigned int gid = subtable_record.firstGlyphIndex;
+ gid <= subtable_record.lastGlyphIndex; ++gid)
+ {
+ unsigned int image_offset = 0, image_length = 0, image_format = 0;
+
+ if (!subtable_record.get_image_data (gid,
+ &image_offset, &image_length, &image_format))
+ continue;
+
+ switch (image_format)
+ {
+ case 17: {
+ const GlyphBitmapDataFormat17& glyphFormat17 =
+ StructAtOffset<GlyphBitmapDataFormat17> (this->cbdt, image_offset);
+ callback ((const uint8_t *) &glyphFormat17.data.arrayZ,
+ glyphFormat17.data.len, i, gid);
+ }
+ break;
+ case 18: {
+ const GlyphBitmapDataFormat18& glyphFormat18 =
+ StructAtOffset<GlyphBitmapDataFormat18> (this->cbdt, image_offset);
+ callback ((const uint8_t *) &glyphFormat18.data.arrayZ,
+ glyphFormat18.data.len, i, gid);
+ }
+ break;
+ case 19: {
+ const GlyphBitmapDataFormat19& glyphFormat19 =
+ StructAtOffset<GlyphBitmapDataFormat19> (this->cbdt, image_offset);
+ callback ((const uint8_t *) &glyphFormat19.data.arrayZ,
+ glyphFormat19.data.len, i, gid);
+ }
+ break;
+ default:
+ continue;
+ }
+ }
+ }
+ }
+ }
+
private:
hb_blob_t *cblc_blob;
hb_blob_t *cbdt_blob;
protected:
- FixedVersion<>version;
- HBUINT8 dataZ[VAR];
-
+ FixedVersion<> version;
+ HBUINT8 dataZ[VAR];
public:
DEFINE_SIZE_ARRAY(4, dataZ);
};
projects / platform / upstream / harfbuzz.git / blobdiff