public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.cmap_Version))
{
if (TableVersionNumber == 0)
{
v.Pass(T.cmap_Version, P.cmap_P_version, m_tag);
}
else
{
v.Error(T.cmap_Version, E.cmap_E_version, m_tag,
TableVersionNumber.ToString());
bRet = false;
}
}
// Check that the number of encoding records seems to
// agree with the numTables field, and that each offset
// is greater than 0 and less than the length of the cmap
// table.
bool bOffsetsOk = true;
if (v.PerformTest(T.cmap_SubtableOffset))
{
for (uint i=0; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
if (ete != null)
{
if (ete.offset == 0)
{
v.Error(T.cmap_SubtableOffset,
E.cmap_E_SubtableOffset_zero, m_tag,
"encoding table entry index = " +
i.ToString() + ", platformID = " +
ete.platformID + ", encodingID = " +
ete.encodingID);
bRet = false;
bOffsetsOk = false;
}
if (ete.offset > m_bufTable.GetLength())
{
v.Error(T.cmap_SubtableOffset,
E.cmap_E_SubtableOffset_eot, m_tag,
"encoding table entry index = " +
i.ToString() + ", platformID = " +
ete.platformID +
", encodingID = " + ete.encodingID);
bRet = false;
bOffsetsOk = false;
}
}
else
{
v.Warning(T.cmap_SubtableOffset,
W._TEST_W_OtherErrorsInTable, m_tag,
"cmap table appears to be corrupt. " +
" No further tests will be performed.");
return bRet;
}
}
if (bOffsetsOk)
{
v.Pass(T.cmap_SubtableOffset, P.cmap_P_SubtableOffset,
m_tag);
}
}
// Check that each subtable can be retrieved from the font
// and that its offset + length lies within the cmap.
bool bLengthsOk = true;
if (v.PerformTest(T.cmap_SubtableLength))
{
for (uint i=0; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
Subtable st = GetSubtable(ete);
if (st != null)
{
if (st.length == 0)
{
v.Error(T.cmap_SubtableLength,
E.cmap_E_SubtableLength_zero, m_tag,
i.ToString());
bRet = false;
bLengthsOk = false;
}
if (ete.offset + st.length > m_bufTable.GetLength())
{
v.Error(T.cmap_SubtableLength,
E.cmap_E_SubtableLength_eot, m_tag,
i.ToString());
bRet = false;
bLengthsOk = false;
}
}
else
{
string sDetails = "PlatID = " + ete.platformID +
", EncID = " + ete.encodingID;
v.Warning(T.cmap_SubtableLength,
W._TEST_W_OtherErrorsInTable, m_tag,
"unable to validate the length of subtable - "
+ sDetails);
bLengthsOk = false;
}
}
if (bLengthsOk)
{
v.Pass(T.cmap_SubtableLength, P.cmap_P_SubtableLength,
m_tag);
}
}
// Assuming previous tests ok, check that sort order is by
// 1. increasing platformID
// 2. increasing encodingID
// 3. increasing language
if (v.PerformTest(T.cmap_SubtableSortOrder))
{
if (bOffsetsOk && bLengthsOk)
{
bool bOrderOk = true;
if (NumberOfEncodingTables > 1)
{
EncodingTableEntry etePrev = GetEncodingTableEntry(0);
for (uint i=1; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
if (etePrev.platformID == ete.platformID)
{
if (etePrev.encodingID == ete.encodingID)
{
Subtable stPrev = GetSubtable(etePrev);
Subtable st = GetSubtable(ete);
if (stPrev.language > st.language)
{
bOrderOk = false;
}
}
else if (etePrev.encodingID > ete.encodingID)
{
bOrderOk = false;
}
}
else if (etePrev.platformID > ete.platformID)
{
bOrderOk = false;
}
etePrev = ete;
}
}
if (bOrderOk)
{
v.Pass(T.cmap_SubtableSortOrder,
P.cmap_P_SubtableSortOrder, m_tag);
}
else
{
v.Error(T.cmap_SubtableSortOrder,
E.cmap_E_SubtableSortOrder, m_tag);
bRet = false;
}
}
else
{
v.Warning(T.cmap_SubtableSortOrder,
W._TEST_W_OtherErrorsInTable, m_tag,
"unable to validate sort order");
}
}
// Check that no encoding record has the same
// (platformID,encodingID,language)
// as the previous one.
if (v.PerformTest(T.cmap_DuplicateSubtables))
{
if (bOffsetsOk && bLengthsOk)
{
bool bNoDuplicates = true;
if (NumberOfEncodingTables > 1)
{
EncodingTableEntry etePrev = GetEncodingTableEntry(0);
for (uint i=1; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
if (etePrev.platformID == ete.platformID)
{
if (etePrev.encodingID == ete.encodingID)
{
Subtable stPrev = GetSubtable(etePrev);
Subtable st = GetSubtable(ete);
if (stPrev.language == st.language)
{
bNoDuplicates = false;
}
}
}
etePrev = ete;
}
}
if (bNoDuplicates)
{
v.Pass(T.cmap_DuplicateSubtables,
P.cmap_P_DuplicateSubtables, m_tag);
}
else
{
v.Error(T.cmap_DuplicateSubtables,
E.cmap_E_DuplicateSubtables, m_tag);
bRet = false;
}
}
else
{
string unable = "unable to validate that there are " +
"no duplicate subtables";
v.Warning(T.cmap_DuplicateSubtables,
W._TEST_W_OtherErrorsInTable, m_tag,
unable );
}
}
// Check that no subtable overlaps and subtable following it,
// in other words, check for the beginning of one subtable
// falling within the bounds of a subtable that follows it.
if (v.PerformTest(T.cmap_SubtableOverlap))
{
if (bOffsetsOk && bLengthsOk)
{
bool bNoOverlap = true;
if (NumberOfEncodingTables > 1)
{
for (uint i=0; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete1 = GetEncodingTableEntry(i);
Subtable st1 = GetSubtable(ete1);
for (uint j=i+1; j<NumberOfEncodingTables; j++)
{
EncodingTableEntry ete2 =
GetEncodingTableEntry(j);
Subtable st2 = GetSubtable(ete2);
if ( (ete1.offset > ete2.offset &&
ete1.offset < ete2.offset + st2.length) ||
(ete2.offset > ete1.offset &&
ete2.offset < ete1.offset + st1.length) )
{
v.Error(T.cmap_SubtableOverlap,
E.cmap_E_SubtableOverlap, m_tag,
i.ToString() + " " + j.ToString());
bRet = false;
bNoOverlap = true;
}
}
}
}
if (bNoOverlap)
{
v.Pass(T.cmap_SubtableOverlap,
P.cmap_P_SubtableOverlap, m_tag);
}
}
else
{
v.Warning(T.cmap_SubtableOverlap,
W._TEST_W_OtherErrorsInTable, m_tag,
"unable to validate that no subtables overlap");
}
}
// Check that all subtable formats (First USHORT in the subtable)
// is an even number between 0 and 14, inclusive.
if (v.PerformTest(T.cmap_ValidFormat))
{
bool bAllFormatsValid = true;
for (uint i=0; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
if (ete.offset < m_bufTable.GetLength()-1)
{
// the format of the subtable is the first uint16
ushort format = m_bufTable.GetUshort(ete.offset);
if (format > HIGHEST_FORMAT || ((format&1)==1))
{
string sDetails = "PlatID = " + ete.platformID +
", EncID = " + ete.encodingID + ", Fmt = " +
format;
v.Error(T.cmap_ValidFormat,
E.cmap_E_SubtableValidFormat, m_tag,
sDetails);
bRet = false;
bAllFormatsValid = false;
}
}
else
{
string sDetails = "PlatID = " + ete.platformID +
", EncID = " + ete.encodingID;
string unable =
"unable to validate format number for subtable - ";
v.Warning(T.cmap_ValidFormat,
W._TEST_W_OtherErrorsInTable, m_tag,
unable + sDetails);
bAllFormatsValid = false;
}
}
if (bAllFormatsValid)
{
v.Pass(T.cmap_ValidFormat,
P.cmap_P_SubtableValidFormat, m_tag);
}
}
// Assuming maxp is present, get the number of glyphs from maxp,
// and for each subtable, run its validate routine.
if (v.PerformTest(T.cmap_SubtableInternalFormat))
{
if (fontOwner.GetTable("maxp") == null)
{
string cant =
"can't check subtable internal formats - " +
"maxp table inaccessible";
v.Warning(T.cmap_SubtableInternalFormat,
W._TEST_W_ErrorInAnotherTable, m_tag,
cant );
}
else
{
for (uint i=0; i<NumberOfEncodingTables; i++)
{
bool bInternalFormatOk = true;
EncodingTableEntry ete = GetEncodingTableEntry(i);
Subtable st = GetSubtable(ete);
if (st != null)
{
ushort numGlyphs = fontOwner.GetMaxpNumGlyphs();
string sIdentity = "PlatID = " + ete.platformID +
", EncID = " + ete.encodingID + ", Fmt = " +
st.format;
ISubtableValidate valSubtable =
(ISubtableValidate)st;
bInternalFormatOk = valSubtable.Validate(v, this,
numGlyphs,
sIdentity);
bRet &= bInternalFormatOk;
if (bInternalFormatOk)
{
v.Pass(T.cmap_SubtableInternalFormat,
P.cmap_P_InternalFormat, m_tag,
sIdentity);
}
}
else
{
string sDetails = "PlatID = " + ete.platformID +
", EncID = " + ete.encodingID;
v.Warning(T.cmap_SubtableInternalFormat,
W._TEST_W_OtherErrorsInTable, m_tag,
"unable to validate internal format " +
"for subtable - "
+ sDetails);
}
}
}
}
// Pass if there is at least one subtable with platformID == 1 and
// one subtable with platformID == 3.
// Warn if either is missing.
if (v.PerformTest(T.cmap_AppleMSSupport))
{
bool bFoundApple = false;
bool bFoundMS = false;
for (uint i=0; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
if (ete.platformID == 1)
{
bFoundApple = true;
}
else if (ete.platformID == 3)
{
bFoundMS = true;
}
}
if (bFoundApple && bFoundMS)
{
v.Pass(T.cmap_AppleMSSupport, P.cmap_P_AppleMSSupport,
m_tag);
}
else if (!bFoundApple)
{
v.Warning(T.cmap_AppleMSSupport, W.cmap_W_AppleMSSupport_A,
m_tag);
}
else if (!bFoundMS)
{
v.Warning(T.cmap_AppleMSSupport, W.cmap_W_AppleMSSupport_M,
m_tag);
}
}
// Find encoding table with platformID==1, encodingID==0
// i.e., Macintosh. Make sure that the Apple Logo, code point 240,
// is mapped to glyphID 0, a legal requirement for Microsoft fonts
// developed for use on Apple platforms.
if (v.PerformTest(T.cmap_AppleLogo))
{
EncodingTableEntry ete = GetEncodingTableEntry(1,0);
if (ete != null)
{
Subtable st = GetSubtable(ete);
if (st != null)
{
byte[] charbuf = new byte[2];
charbuf[0] = 240;
charbuf[1] = 0;
uint glyph = st.MapCharToGlyph(charbuf, 0);
if (glyph == 0)
{
v.Pass(T.cmap_AppleLogo, P.cmap_P_AppleLogo, m_tag);
}
else
{
v.Warning(T.cmap_AppleLogo, W.cmap_W_AppleLogo,
m_tag);
}
}
else
{
string sDetails = "PlatID = " + ete.platformID +
", EncID = " + ete.encodingID;
string unable =
"unable to validate apple logo for subtable - ";
v.Warning(T.cmap_AppleLogo,
W._TEST_W_OtherErrorsInTable, m_tag,
unable + sDetails);
}
}
else
{
v.Warning(T.cmap_AppleLogo, W.cmap_W_AppleLogo_NoMap,
m_tag);
}
}
// Euro symbol.
// Unless there is a Microsoft Symbol encoding cmap (3,0):
// * Make sure that any apple cmap(1,0) contains a glyph U+00db
// * Make sure that any Microsoft Unicode cmap (3,1) contains
// a glyph U+20AC.
if (v.PerformTest(T.cmap_EuroGlyph))
{
EncodingTableEntry eteSym = GetEncodingTableEntry(3,0);
if (eteSym == null)
{
EncodingTableEntry eteMac = GetEncodingTableEntry(1,0);
if (eteMac != null)
{
Subtable st = GetSubtable(eteMac);
if (st != null)
{
byte[] charbuf = new byte[2];
charbuf[0] = 0xdb;
charbuf[1] = 0;
uint glyph = st.MapCharToGlyph(charbuf, 0);
if (glyph != 0)
{
v.Pass(T.cmap_EuroGlyph,
P.cmap_P_EuroGlyph_Mac, m_tag);
}
else
{
v.Warning(T.cmap_EuroGlyph,
W.cmap_W_EuroGlyph_Mac, m_tag);
}
}
else
{
string sDetails = "PlatID = " + eteMac.platformID +
", EncID = " + eteMac.encodingID;
string unable =
"unable to validate if euro glyph " +
"is present for subtable - ";
v.Warning(T.cmap_EuroGlyph,
W._TEST_W_OtherErrorsInTable, m_tag,
unable + sDetails);
}
}
EncodingTableEntry eteUni = GetEncodingTableEntry(3,1);
if (eteUni != null)
{
Subtable st = GetSubtable(eteUni);
if (st != null)
{
byte[] charbuf = new byte[2];
charbuf[0] = 0xac;
charbuf[1] = 0x20;
uint glyph = st.MapCharToGlyph(charbuf, 0);
if (glyph != 0)
{
v.Pass(T.cmap_EuroGlyph,
P.cmap_P_EuroGlyph_Uni, m_tag);
}
else
{
v.Warning(T.cmap_EuroGlyph,
W.cmap_W_EuroGlyph_Uni, m_tag);
}
}
else
{
string sDetails = "PlatID = " + eteMac.platformID +
", EncID = " + eteMac.encodingID;
string unable = "unable to validate if euro glyph" +
" is present for subtable - ";
v.Warning(T.cmap_EuroGlyph,
W._TEST_W_OtherErrorsInTable, m_tag,
unable + sDetails);
}
}
}
}
// Make sure that no glyphs, other than "fi" and "fl" ligatures,
// are mapped from the "private use area", that is,
// 0xE000 - 0xF8FF. The above ligatures may only be a the
// prescribed places.
//
// Checks that 0xf001 and 0xfb01 map to the same place, and
// Checks that 0xf002 and 0xfb02 map to the same place.
//
// Only warn if a problem.
if (v.PerformTest(T.cmap_PrivateUse))
{
EncodingTableEntry eteUni = GetEncodingTableEntry(3,1);
if (eteUni != null)
{
Subtable st = GetSubtable(eteUni);
if (st != null)
{
bool bFoundGlyph = false;
bool bFoundLigChar = false;
byte[] charbuf = new byte[2];
for (char c='\xe000'; c<'\xf8ff'; c++)
{
uint glyph = fontOwner.FastMapUnicodeToGlyphID(c);
if (glyph != 0)
{
if (c == '\xf001')
{
// check to see if this is the 'fi' ligature
uint glyph2 = fontOwner.
FastMapUnicodeToGlyphID('\xfb01');
if (glyph == glyph2)
{
bFoundLigChar = true;
}
else
{
bFoundGlyph = true;
break;
}
}
else if (c == '\xf002')
{
// check to see if this is the 'fl' ligature
uint glyph2 = fontOwner.
FastMapUnicodeToGlyphID('\xfb02');
if (glyph == glyph2)
{
bFoundLigChar = true;
}
else
{
bFoundGlyph = true;
break;
}
}
else
{
bFoundGlyph = true;
break;
}
}
}
if (bFoundGlyph)
{
v.Warning(T.cmap_PrivateUse,
W.cmap_W_UnicodePrivateUse, m_tag);
}
else if (bFoundLigChar)
{
v.Pass(T.cmap_PrivateUse,
P.cmap_P_UnicodePrivateUse_lig, m_tag);
}
else
{
v.Pass(T.cmap_PrivateUse,
P.cmap_P_UnicodePrivateUse, m_tag);
}
}
else
{
string sDetails = "PlatID = " + eteUni.platformID +
", EncID = " + eteUni.encodingID;
v.Warning(T.cmap_PrivateUse,
W._TEST_W_OtherErrorsInTable, m_tag,
"unable to validate Private Use Area " +
"for subtable - "
+ sDetails);
}
}
}
// Check that subtable language field is zero if not mac platform
if (v.PerformTest(T.cmap_NonMacSubtableLanguage))
{
bool bOk = true;
for (uint i=0; i<NumberOfEncodingTables; i++)
{
EncodingTableEntry ete = GetEncodingTableEntry(i);
Subtable st = GetSubtable(ete);
if (st != null)
{
if (ete.platformID != 1) // not mac
{
if (st.language != 0)
{
string sDetails = "PlatID = " +
ete.platformID + ", EncID = " +
ete.encodingID +
", Language = " + st.language;
v.Error(T.cmap_SubtableLanguage,
E.cmap_E_NonMacSubtableLanguage,
m_tag, sDetails);
bOk = false;
}
}
}
}
if (bOk)
{
v.Pass(T.cmap_SubtableLanguage,
P.cmap_P_NonMacSubtableLanguage, m_tag);
}
}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.PCLT_TableLength))
{
if (GetLength() == 54)
{
v.Pass(T.PCLT_TableLength, P.PCLT_P_TableLength, m_tag);
}
else
{
v.Error(T.PCLT_TableLength, E.PCLT_E_TableLength, m_tag, GetLength().ToString());
bRet = false;
}
}
if (v.PerformTest(T.PCLT_Version))
{
if (Version.GetUint() == 0x00010000)
{
v.Pass(T.PCLT_Version, P.PCLT_P_Version, m_tag);
}
else
{
v.Error(T.PCLT_Version, E.PCLT_E_Version, m_tag, "0x"+Version.GetUint().ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.PCLT_Pitch))
{
Table_hmtx hmtxTable = (Table_hmtx)fontOwner.GetTable("hmtx");
Table_maxp maxpTable = (Table_maxp)fontOwner.GetTable("maxp");
if (hmtxTable == null)
{
v.Error(T.PCLT_Pitch, E._TEST_E_TableMissing, m_tag, "hmtx");
bRet = false;
}
else if (maxpTable == null)
{
v.Error(T.PCLT_Pitch, E._TEST_E_TableMissing, m_tag, "maxp");
bRet = false;
}
else
{
uint iSpaceGlyph = fontOwner.FastMapUnicodeToGlyphID(' ');
if (iSpaceGlyph < fontOwner.GetMaxpNumGlyphs())
{
Table_hmtx.longHorMetric hmSpace = hmtxTable.GetOrMakeHMetric(iSpaceGlyph, fontOwner);
if (hmSpace != null)
{
if (Pitch == hmSpace.advanceWidth)
{
v.Pass(T.PCLT_Pitch, P.PCLT_P_Pitch, m_tag);
}
else
{
string s = "actual = " + Pitch + ", expected = " + hmSpace.advanceWidth;
v.Error(T.PCLT_Pitch, E.PCLT_E_Pitch, m_tag, s);
bRet = false;
}
}
}
else
{
// JJF Figure out what to do
v.Warning(T.PCLT_Pitch, W._TEST_W_ErrorInAnotherTable, m_tag, "can't validate Pitch field, error getting the space glyph");
bRet = false;
}
}
}
if (v.PerformTest(T.PCLT_Style))
{
ushort Posture = (ushort)(Style & 0x0003);
ushort Width = (ushort)((Style>>2) & 0x0007);
ushort Structure = (ushort)((Style>>5) & 0x001f);
ushort Reserved = (ushort)(Style>>10);
bool bBitsOk = true;
if (Posture == 3)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Posture, m_tag, "0x"+Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (Width == 5)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Width, m_tag, "0x"+Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (Structure > 17)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Structure, m_tag, "0x"+Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (Reserved != 0)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Reserved, m_tag, "0x"+Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (bBitsOk)
{
v.Pass(T.PCLT_Style, P.PCLT_P_Style, m_tag);
}
}
if (v.PerformTest(T.PCLT_StrokeWeight))
{
if (StrokeWeight >= -7 && StrokeWeight <= 7)
{
v.Pass(T.PCLT_StrokeWeight, P.PCLT_P_StrokeWeight, m_tag, StrokeWeight.ToString());
}
else
{
v.Error(T.PCLT_StrokeWeight, E.PCLT_E_StrokeWeight, m_tag, StrokeWeight.ToString());
bRet = false;
}
}
if (v.PerformTest(T.PCLT_WidthType))
{
if (WidthType >= -5 && WidthType <= 5)
{
v.Pass(T.PCLT_WidthType, P.PCLT_P_WidthType, m_tag, WidthType.ToString());
}
else
{
v.Error(T.PCLT_WidthType, E.PCLT_E_WidthType, m_tag, WidthType.ToString());
bRet = false;
}
}
if (v.PerformTest(T.PCLT_SerifStyle))
{
uint bot6 = (uint)SerifStyle & 0x3f;
uint top2 = (uint)SerifStyle>>6;
bool bBitsOk = true;
if (bot6 > 12)
{
v.Error(T.PCLT_SerifStyle, E.PCLT_E_Bottom6, m_tag, "0x"+SerifStyle.ToString("x2"));
bBitsOk = false;
bRet = false;
}
if (top2 == 0 || top2 == 3)
{
v.Error(T.PCLT_SerifStyle, E.PCLT_E_Top2, m_tag);
bBitsOk = false;
bRet = false;
}
if (bBitsOk)
{
v.Pass(T.PCLT_SerifStyle, P.PCLT_P_SerifStyle, m_tag);
}
}
if (v.PerformTest(T.PCLT_Reserved))
{
if (Reserved == 0)
{
v.Pass(T.PCLT_Reserved, P.PCLT_P_Reserved, m_tag);
}
else
{
v.Error(T.PCLT_Reserved, E.PCLT_E_Reserved, m_tag, Reserved.ToString());
bRet = false;
}
}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.OS_2_Version))
{
if (version == 0 || version == 1 || version == 2)
{
v.Warning(T.OS_2_Version, W.OS_2_W_Version_old, m_tag, version.ToString());
}
else if (version == 3)
{
v.Pass(T.OS_2_Version, P.OS_2_P_Version, m_tag, version.ToString());
}
else
{
v.Error(T.OS_2_Version, E.OS_2_E_Version, m_tag, version.ToString());
bRet = false;
}
}
if (v.PerformTest(T.OS_2_TableLength))
{
uint len = GetLength();
if ((version == 0 && len == 78)
|| (version == 1 && len == 86)
|| (version == 2 && len == 96)
|| (version == 3 && len == 96))
{
v.Pass(T.OS_2_TableLength, P.OS_2_P_TableLength, m_tag);
}
else
{
v.Error(T.OS_2_TableLength, E.OS_2_E_TableLength, m_tag);
bRet = false;
}
}
if (!bRet)
{
v.Warning(T.T_NULL, W._TEST_W_OtherErrorsInTable, m_tag, "OS/2 table appears to be corrupt. No further tests will be performed.");
return bRet;
}
if (v.PerformTest(T.OS_2_xAvgCharWidth))
{
if (fontOwner.GetTable("maxp") == null)
{
v.Warning(T.OS_2_xAvgCharWidth, W._TEST_W_ErrorInAnotherTable, m_tag, "maxp table inaccessible, can't check Avg Char Width");
}
else
{
if (fontOwner.ContainsTrueTypeOutlines())
{
Table_hmtx hmtxTable = (Table_hmtx)fontOwner.GetTable("hmtx");
val_loca locaTable = (val_loca)fontOwner.GetTable("loca");
val_maxp maxpTable = (val_maxp)fontOwner.GetTable("maxp");
if (hmtxTable == null)
{
v.Error(T.OS_2_xAvgCharWidth, E._TEST_E_TableMissing, m_tag, "hmtx");
bRet = false;
}
else if (locaTable == null)
{
v.Error(T.OS_2_xAvgCharWidth, E._TEST_E_TableMissing, m_tag, "loca");
bRet = false;
}
else if (maxpTable == null)
{
v.Error(T.OS_2_xAvgCharWidth, E._TEST_E_TableMissing, m_tag, "maxp");
bRet = false;
}
else
{
if ( version == 3
|| fontOwner.ContainsMsSymbolEncodedCmap())
{
int nTotalWidth = 0;
int nTotalGlyphs = 0;
for (uint iGlyph=0; iGlyph<fontOwner.GetMaxpNumGlyphs(); iGlyph++)
{
Table_hmtx.longHorMetric hm = hmtxTable.GetOrMakeHMetric(iGlyph, fontOwner);
if (hm != null)
{
nTotalWidth += hm.advanceWidth;
// only average non-zero width glyphs
if (hm.advanceWidth > 0)
{
nTotalGlyphs ++;
}
}
}
short CalcAvgWidth = 0;
if (nTotalGlyphs > 0)
CalcAvgWidth = (short)(nTotalWidth / nTotalGlyphs);
if (xAvgCharWidth == CalcAvgWidth)
{
v.Pass(T.OS_2_xAvgCharWidth, P.OS_2_P_xAvgCharWidth, m_tag);
}
else
{
string s = "actual = " + xAvgCharWidth + ", calc = " + CalcAvgWidth;
v.Error(T.OS_2_xAvgCharWidth, E.OS_2_E_xAvgCharWidth, m_tag, s);
bRet = false;
}
}
else
{
// do weighed average
ushort [] weightLC = {
64, 14, 27, 35, 100, 20, 14, 42, 63, 3, 6, 35, 20,
56, 56, 17, 4, 49, 56, 71, 31, 10, 18, 3, 18, 2
};
ushort weightSpace = 166;
try
{
uint iSpaceGlyph = fontOwner.FastMapUnicodeToGlyphID(' ');
if (iSpaceGlyph >= fontOwner.GetMaxpNumGlyphs())
{
throw new ApplicationException("error in cmap table");
}
Table_hmtx.longHorMetric hmSpace = hmtxTable.GetOrMakeHMetric(iSpaceGlyph, fontOwner);
if (hmSpace != null)
{
int nTotalWeight = hmSpace.advanceWidth * weightSpace;
int nLowerCase = 0;
for (char c = 'a'; c <= 'z'; c++)
{
uint iGlyph = fontOwner.FastMapUnicodeToGlyphID(c);
if (iGlyph > 0
&& iGlyph < fontOwner.GetMaxpNumGlyphs())
{
nLowerCase ++;
Table_hmtx.longHorMetric hm = hmtxTable.GetOrMakeHMetric(iGlyph, fontOwner);
nTotalWeight += hm.advanceWidth * weightLC[c-'a'];
}
}
short CalcAvgWidth = 0;
if (nLowerCase == 26)
{
CalcAvgWidth = (short)(nTotalWeight / 1000);
}
else
{
int nTotalWidth = 0;
int nTotalGlyphs = 0;
for (uint iGlyph=0; iGlyph<fontOwner.GetMaxpNumGlyphs(); iGlyph++)
{
Table_hmtx.longHorMetric hm = hmtxTable.GetOrMakeHMetric(iGlyph, fontOwner);
nTotalWidth += hm.advanceWidth;
nTotalGlyphs ++;
}
CalcAvgWidth = (short)(nTotalWidth / nTotalGlyphs);
}
if (xAvgCharWidth == CalcAvgWidth)
{
v.Pass(T.OS_2_xAvgCharWidth, P.OS_2_P_xAvgCharWidth, m_tag);
}
else
{
string s = "actual = " + xAvgCharWidth + ", calc = " + CalcAvgWidth;
v.Error(T.OS_2_xAvgCharWidth, E.OS_2_E_xAvgCharWidth, m_tag, s);
bRet = false;
}
}
else
{
v.Warning(T.OS_2_xAvgCharWidth, W.OS_2_W_hmtx_invalid, m_tag, "unable to parse hmtx table");
}
}
catch (ApplicationException e)
{
v.Warning(T.OS_2_xAvgCharWidth, W._TEST_W_ErrorInAnotherTable, m_tag, "xAvgCharWidth cannot be validated due to " + e.Message);
}
}
}
}
else
{
// not a TT outline font - should embedded bitmap only font be handled here?
v.Info(T.OS_2_xAvgCharWidth, I._TEST_I_NotForCFF, m_tag, "test = OS/2_xAvgCharWidth");
}
}
}
if (v.PerformTest(T.OS_2_WeightClass))
{
if (usWeightClass >= 100 &&
usWeightClass <= 900 &&
usWeightClass% 100 == 0)
{
bool bWeightClassOk = true;
// compare to the PANOSE weight value
if (panose_byte1 == 2 || panose_byte1 == 3 || panose_byte1 == 4) // latin text, hand writing, or decorative
{
if (panose_byte3 > 1)
{
// convert PANOSE weight value from a range of [2..11] to a range of [100..900] (reasonably close anyway, given integer math)
int nConvertedPANOSE = (panose_byte3-2)*89+100;
int nDifference = Math.Abs(usWeightClass - nConvertedPANOSE);
if (nDifference < 200)
{
v.Pass(T.OS_2_WeightClass, P.OS_2_P_WeightClass_PANOSE, m_tag);
}
else
{
v.Warning(T.OS_2_WeightClass, W.OS_2_W_WeightClass_PANOSE, m_tag, "usWeightClass = " + usWeightClass + ", PANOSE weight = " + panose_byte3);
bWeightClassOk = false;
}
}
}
if (bWeightClassOk)
{
v.Pass(T.OS_2_WeightClass, P.OS_2_P_WeightClass, m_tag, usWeightClass.ToString());
}
}
else
{
v.Error(T.OS_2_WeightClass, E.OS_2_E_WeightClass, m_tag, usWeightClass.ToString());
bRet = false;
}
}
if (v.PerformTest(T.OS_2_WidthClass))
{
if (usWidthClass >=1 && usWidthClass <= 9)
{
v.Pass(T.OS_2_WidthClass, P.OS_2_P_WidthClass, m_tag, usWidthClass.ToString());
}
else
{
v.Error(T.OS_2_WidthClass, E.OS_2_E_WidthClass, m_tag, usWidthClass.ToString());
bRet = false;
}
}
if (v.PerformTest(T.OS_2_fsType))
{
bool bPass = true;
if ((fsType & 0xfcf1) != 0)
{
v.Error(T.OS_2_fsType, E.OS_2_E_fsTypeReserved, m_tag, "0x"+fsType.ToString("x4"));
bRet = false;
bPass = false;
}
else
{
int nExclusiveBits = 0;
if ((fsType & 0x0002) !=0) //Restricted License Embedding
{
nExclusiveBits++;
}
if ((fsType & 0x0004) != 0) // Preview and Print embedding
{
nExclusiveBits++;
}
if ((fsType & 0x0008) != 0) // Editable embedding
{
nExclusiveBits++;
}
if (nExclusiveBits > 1)
{
string sDetails = "0x"+fsType.ToString("x4");
if ((fsType & 0x0002) !=0)
{
sDetails += ", Restricted License Embedding";
}
if ((fsType & 0x0004) != 0)
{
sDetails += ", Preview and Print embedding";
}
if ((fsType & 0x0008) != 0)
{
sDetails += ", Editable embedding";
}
v.Error(T.OS_2_fsType, E.OS_2_E_fsTypeExclusiveBits, m_tag, sDetails);
bRet = false;
bPass = false;
}
}
if (bPass)
{
string sDetails = "0x"+fsType.ToString("x4");
if (fsType == 0)
{
sDetails += ", Installable Embedding";
}
if ((fsType & 0x0002) !=0)
{
sDetails += ", Restricted License Embedding";
}
if ((fsType & 0x0004) != 0)
{
sDetails += ", Preview and Print embedding";
}
if ((fsType & 0x0008) != 0)
{
sDetails += ", Editable embedding";
}
if ((fsType & 0x0100) != 0)
{
sDetails += ", No subsetting";
}
if ((fsType & 0x0200) != 0)
{
sDetails += ", Bitmap embedding only";
}
v.Pass(T.OS_2_fsType, P.OS_2_P_fsType, m_tag, sDetails);
}
}
if (v.PerformTest(T.OS_2_SubscriptSuperscript))
{
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
ushort unitsPerEm = headTable.unitsPerEm;
ushort SmallestScript = (ushort)(unitsPerEm / 10);
bool bNoWarnOrErr = true;
if (ySubscriptXSize < SmallestScript ||
ySubscriptXSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySubscriptXSize_unlikely, m_tag, ySubscriptXSize.ToString());
bNoWarnOrErr = false;
}
if (ySubscriptYSize < SmallestScript ||
ySubscriptYSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySubscriptYSize_unlikely, m_tag, ySubscriptYSize.ToString());
bNoWarnOrErr = false;
}
if (ySubscriptYOffset < 0 )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySubscriptYOffset_LTZero, m_tag, ySubscriptYOffset.ToString());
bNoWarnOrErr = false;
}
if (ySuperscriptXSize < SmallestScript ||
ySuperscriptXSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySuperscriptXSize_unlikely, m_tag, ySuperscriptXSize.ToString());
bNoWarnOrErr = false;
}
if (ySuperscriptYSize < SmallestScript ||
ySuperscriptYSize > unitsPerEm )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySuperscriptYSize_unlikely, m_tag, ySuperscriptYSize.ToString());
bNoWarnOrErr = false;
}
if (ySuperscriptYOffset < 0 )
{
v.Warning(T.OS_2_SubscriptSuperscript, W.OS_2_W_ySuperscriptYOffset_unlikely, m_tag, ySuperscriptYOffset.ToString());
bNoWarnOrErr = false;
}
if (bNoWarnOrErr)
{
v.Pass(T.OS_2_SubscriptSuperscript, P.OS_2_P_SuperscriptSubscript, m_tag);
}
}
else
{
v.Error(T.OS_2_SubscriptSuperscript, E._TEST_E_TableMissing, m_tag, "head");
bRet = false;
}
}
if (v.PerformTest(T.OS_2_Strikeout))
{
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
ushort unitsPerEm = headTable.unitsPerEm;
bool bNoWarnings = true;
if (yStrikeoutSize < 0 || yStrikeoutSize > unitsPerEm / 2 )
{
v.Warning(T.OS_2_Strikeout, W.OS_2_W_yStrikeoutSize_unlikely, m_tag, yStrikeoutSize.ToString());
bNoWarnings = false;
}
if (yStrikeoutPosition <= 0 )
{
v.Warning(T.OS_2_Strikeout, W.OS_2_W_yStrikeoutPosition_unlikely, m_tag, yStrikeoutPosition.ToString());
bNoWarnings = false;
}
if (bNoWarnings)
{
v.Pass(T.OS_2_Strikeout, P.OS_2_P_Strikeout, m_tag);
}
}
else
{
v.Error(T.OS_2_Strikeout, E._TEST_E_TableMissing, m_tag, "head");
bRet = false;
}
}
if (v.PerformTest(T.OS_2_FamilyClass))
{
bool bIDsOk = true;
byte ClassID = (byte)(sFamilyClass >> 8);
byte SubclassID = (byte)(sFamilyClass);
if (ClassID == 6 || ClassID == 11 || ClassID == 13 || ClassID == 14 )
{
v.Error(T.OS_2_FamilyClass, E.OS_2_E_sFamilyClass_classID_reserved, m_tag, ClassID.ToString());
bIDsOk = false;
bRet = false;
}
if (ClassID > 14 )
{
v.Error(T.OS_2_FamilyClass, E.OS_2_E_sFamilyClass_ClassID_undefined, m_tag, ClassID.ToString());
bIDsOk = false;
bRet = false;
}
if (SubclassID > 15 )
{
v.Error(T.OS_2_FamilyClass, E.OS_2_E_sFamilyClass_subclassID_undefined, m_tag, ClassID.ToString());
bIDsOk = false;
bRet = false;
}
if (bIDsOk)
{
v.Pass(T.OS_2_FamilyClass, P.OS_2_P_sFamilyClass, m_tag);
}
}
if (v.PerformTest(T.OS_2_Panose))
{
bool bPanoseOk = true;
if (panose_byte1 < 5) // panose kind valid, but not latin symbol
{
if (fontOwner.ContainsSymbolsOnly())
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_FamilyTypeNotSymbol, m_tag, "PANOSE byte 1 = " + panose_byte1.ToString());
bPanoseOk = false;
bRet = false;
}
}
else if (panose_byte1 == 5) // panose family kind == latin symbol
{
if (!fontOwner.ContainsSymbolsOnly())
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_FamilyTypeSymbol, m_tag, "PANOSE byte 1 = " + panose_byte1.ToString());
bPanoseOk = false;
bRet = false;
}
}
else if ( panose_byte1 > 5 ) // family kind is invalid
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bFamilyType, m_tag, panose_byte1.ToString());
bPanoseOk = false;
bRet = false;
}
if (panose_byte1 == 2) // family kind == latin text
{
if ( panose_byte2 > 15 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bSerifStyle, m_tag, panose_byte2.ToString());
bPanoseOk = false;
bRet = false;
}
}
if ( panose_byte3 > 11 ) // byte3 always means weight
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bWeight, m_tag, panose_byte3.ToString());
bPanoseOk = false;
bRet = false;
}
if (panose_byte1 == 5) // panose family kind == latin symbol
{
if (panose_byte3 != 1) // weight must be 1 for symbols
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_SymbolWeight, m_tag, panose_byte3.ToString());
bPanoseOk = false;
bRet = false;
}
if (panose_byte5 != 1) // aspect ratio & contrast must be 1 for symbols
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_SymbolAspectRatio, m_tag, panose_byte5.ToString());
bPanoseOk = false;
bRet = false;
}
}
if (panose_byte1 == 2) // family kind == latin text
{
// the following tests are only valid when family kind is latin text
if ( panose_byte4 > 9 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bProportion, m_tag, panose_byte4.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte5 > 9 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bContrast, m_tag, panose_byte5.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte6 > 10 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bStrokeVariation, m_tag, panose_byte6.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte7 > 11 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bArmStyle, m_tag, panose_byte7.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte8 > 15 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bLetterform, m_tag, panose_byte8.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte9 > 13 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bMidline, m_tag, panose_byte9.ToString());
bPanoseOk = false;
bRet = false;
}
if ( panose_byte10 > 7 )
{
v.Error(T.OS_2_Panose, E.OS_2_E_Panose_bXHeight, m_tag, panose_byte10.ToString());
bPanoseOk = false;
bRet = false;
}
}
if (panose_byte1 == 0 &&
panose_byte2 == 0 &&
panose_byte3 == 0 &&
panose_byte4 == 0 &&
panose_byte5 == 0 &&
panose_byte6 == 0 &&
panose_byte7 == 0 &&
panose_byte8 == 0 &&
panose_byte9 == 0 &&
panose_byte10 == 0 )
{
v.Warning(T.OS_2_Panose, W.OS_2_W_Panose_undefined, m_tag);
bPanoseOk = false;
}
if (bPanoseOk)
{
v.Pass(T.OS_2_Panose, P.OS_2_P_Panose, m_tag);
}
}
if (v.PerformTest(T.OS_2_UnicodeRanges))
{
bRet &= CheckUnicodeRanges(v, fontOwner);
}
if (v.PerformTest(T.OS_2_fsSelection))
{
bool bSelOk = true;
Table_name nameTable = (Table_name)fontOwner.GetTable("name");
string sStyle = null;
string sStyleLower = null;
if (nameTable != null)
{
sStyle = nameTable.GetStyleString();
if (sStyle != null)
{
sStyleLower = sStyle.ToLower();
}
}
// reserved bits
if ( (fsSelection & 0xFF80 ) != 0 )
{
// we need to look for Win 3.1 font pages
// Fonts with these
const ushort HEBREW_FONT_PAGE = 0xB100;
const ushort SIMP_ARABIC_FONT_PAGE = 0xB200;
const ushort TRAD_ARABIC_FONT_PAGE = 0xB300;
const ushort OEM_ARABIC_FONT_PAGE = 0xB400;
const ushort SIMP_FARSI_FONT_PAGE = 0xBA00;
const ushort TRAD_FARSI_FONT_PAGE = 0xBB00;
const ushort THAI_FONT_PAGE = 0xDE00;
String sDetails = "Bit(s) ";
bool bFoundFirstBadBit = false;
if (version == 0)
{
switch (fsSelection & 0xFF00)
{
case HEBREW_FONT_PAGE:
sDetails = "Hebrew Windows 3.1 font page";
break;
case SIMP_ARABIC_FONT_PAGE:
sDetails = "Simplified Arabic Windows 3.1 font page";
break;
case TRAD_ARABIC_FONT_PAGE:
sDetails = "Traditional Arabic Windows 3.1 font page";
break;
case OEM_ARABIC_FONT_PAGE:
sDetails = "OEM Arabic Windows 3.1 font page";
break;
case SIMP_FARSI_FONT_PAGE:
sDetails = "Simplified Farsi Windows 3.1 font page";
break;
case TRAD_FARSI_FONT_PAGE:
sDetails = "Traditional Farsi Windows 3.1 font page";
break;
case THAI_FONT_PAGE:
sDetails = "Thai Windows 3.1 font page";
break;
default:
for (int i=0; i<16; i++)
{
int nBitValue = 1<<i;
if ((nBitValue & 0xFF80) != 0)
{
if ((fsSelection & nBitValue) != 0)
{
if (bFoundFirstBadBit)
{
sDetails += ", " + i;
}
else
{
sDetails += i.ToString();
bFoundFirstBadBit = true;
}
}
}
}
break;
}
}
else
{
for (int i=0; i<16; i++)
{
int nBitValue = 1<<i;
if ((nBitValue & 0xFF80) != 0)
{
if ((fsSelection & nBitValue) != 0)
{
if (bFoundFirstBadBit)
{
sDetails += ", " + i;
}
else
{
sDetails += i.ToString();
bFoundFirstBadBit = true;
}
}
}
}
}
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_undefbits, m_tag, sDetails);
bSelOk = false;
bRet = false;
}
// compare to head.macStyle italic and bold bits
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
bool bItalic = ((fsSelection & 0x01) != 0 );
bool bBold = ((fsSelection & 0x20) != 0 );
bool bMacBold = ((headTable.macStyle & 0x0001) != 0);
bool bMacItal = ((headTable.macStyle & 0x0002) != 0);
if (bItalic != bMacItal)
{
string sDetails = null;
if (bItalic) sDetails = "fsSelection italic bit is set, but macstyle italic bit is clear";
else sDetails = "fsSelection italic bit is clear, but macstyle italic bit is set";
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_macStyle_italic, m_tag, sDetails);
bSelOk = false;
bRet = false;
}
if (bBold != bMacBold)
{
string sDetails = null;
if (bBold) sDetails = "fsSelection bold bit is set, but macstyle bold bit is clear";
else sDetails = "fsSelection bold bit is clear, but macstyle bold bit is set";
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_macStyle_bold, m_tag, sDetails);
bSelOk = false;
bRet = false;
}
}
if ((fsSelection & 0x01) != 0 ) // italic bit
{
// compare to name subfamily
if (sStyleLower != null)
{
if (sStyleLower.IndexOf("italic") == -1 && sStyleLower.IndexOf("oblique") == -1)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_subfamily, m_tag, "fsSelection italic bit is set, but subfamily is " + sStyle);
bSelOk = false;
bRet = false;
}
}
}
if ((fsSelection & 0x20) != 0 ) // bold bit
{
// compare to name subfamily
if (sStyleLower != null)
{
if (sStyleLower.IndexOf("bold") == -1)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_subfamily, m_tag, "fsSelection bold bit is set, but subfamily is " + sStyle);
bSelOk = false;
bRet = false;
}
}
if (usWeightClass <= 500)
{
v.Warning(T.OS_2_fsSelection, W.OS_2_W_fsSelection_weight, m_tag, "usWeightClass = " + usWeightClass);
bSelOk = false;
}
}
if ((fsSelection & 0x40) != 0 ) // regular bit
{
if ((fsSelection & 0x20) != 0 )
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_reg_bold, m_tag);
bSelOk = false;
bRet = false;
}
if ((fsSelection & 0x01) != 0)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_reg_ital, m_tag);
bSelOk = false;
bRet = false;
}
if (sStyleLower != null)
{
// compare to name subfamily
if (sStyleLower.CompareTo("regular") != 0)
{
v.Error(T.OS_2_fsSelection, E.OS_2_E_fsSelection_subfamily, m_tag, "fsSelection regular bit is set, but subfamily is " + sStyle);
bSelOk = false;
bRet = false;
}
}
}
if (bSelOk)
{
v.Pass(T.OS_2_fsSelection, P.OS_2_P_fsSelection, m_tag);
}
}
if (v.PerformTest(T.OS_2_CharIndexes))
{
Table_cmap cmapTable = (Table_cmap)fontOwner.GetTable("cmap");
if (cmapTable != null)
{
ushort charFirst = 0xffff;
ushort charLast = 0;
Table_cmap.EncodingTableEntry eteUni = cmapTable.GetEncodingTableEntry(3,1);
if (eteUni == null)
{
// presumably a symbol font
eteUni = cmapTable.GetEncodingTableEntry(3,0);
}
if (eteUni != null)
{
Table_cmap.Subtable st = cmapTable.GetSubtable(eteUni);
if (st != null)
{
bool bCmapOk = true;
byte[] charbuf = new byte[2];
// find the first char
for (ushort c=0; c<0xffff; c++)
{
charbuf[0] = (byte)c;
charbuf[1] = (byte)(c>>8);
uint glyphID;
try
{
glyphID = st.MapCharToGlyph(charbuf, 0);
}
catch
{
bCmapOk = false;
break;
}
if (glyphID != 0)
{
charFirst = c;
break;
}
}
// find the last char (start at fffd: fffe and ffff aren't legal characters)
if (bCmapOk)
{
for (ushort c=0xfffd; c>0; c--)
{
charbuf[0] = (byte)c;
charbuf[1] = (byte)(c>>8);
uint glyphID;
try
{
glyphID = st.MapCharToGlyph(charbuf, 0);
}
catch
{
bCmapOk = false;
break;
}
if (glyphID != 0)
{
charLast = c;
break;
}
}
}
if (!bCmapOk)
{
v.Warning(T.OS_2_CharIndexes, W._TEST_W_ErrorInAnotherTable, m_tag, "usFirstCharIndex and usLastCharIndex cannot be validated due to errors in the cmap table");
}
else if (usFirstCharIndex == charFirst && usLastCharIndex == charLast)
{
v.Pass(T.OS_2_CharIndexes, P.OS_2_P_CharIndexes, m_tag, "first = 0x" + usFirstCharIndex.ToString("x4") + ", last = 0x" + usLastCharIndex.ToString("x4"));
}
else
{
if (usFirstCharIndex != charFirst)
{
String sDetails = "actual = 0x" + usFirstCharIndex.ToString("x4") + ", calculated = 0x" + charFirst.ToString("x4");
v.Error(T.OS_2_CharIndexes, E.OS_2_E_usFirstCharIndex, m_tag, sDetails);
bRet = false;
}
if (usLastCharIndex != charLast)
{
String sDetails = "actual = 0x" + usLastCharIndex.ToString("x4") + ", calculated = 0x" + charLast.ToString("x4");
v.Error(T.OS_2_CharIndexes, E.OS_2_E_usLastCharIndex, m_tag, sDetails);
bRet = false;
}
}
}
else
{
v.Warning(T.OS_2_CharIndexes, W._TEST_W_ErrorInAnotherTable, m_tag, "usFirstCharIndex and usLastCharIndex cannot be validated due to errors in the cmap table");
}
}
}
else
{
v.Error(T.OS_2_CharIndexes, E._TEST_E_TableMissing, m_tag, "cmap");
bRet = false;
}
}
if (v.PerformTest(T.OS_2_TypoMetrics))
{
bool bOk = true;
if (sTypoAscender <= 0)
{
v.Error(T.OS_2_TypoMetrics, E.OS_2_E_sTypoAscender_notpositive, m_tag, sTypoAscender.ToString());
bOk = false;
bRet = false;
}
if (sTypoDescender > 0)
{
v.Error(T.OS_2_TypoMetrics, E.OS_2_E_sTypoDescender_positive, m_tag, sTypoDescender.ToString());
bOk = false;
bRet = false;
}
Table_head headTable = (Table_head)fontOwner.GetTable("head");
if (headTable != null)
{
if (sTypoAscender - sTypoDescender > headTable.unitsPerEm)
{
string sDetails = "sTypoAscender = " + sTypoAscender + ", sTypoDescender = " + sTypoDescender;
v.Warning(T.OS_2_TypoMetrics, W.OS_2_W_sTypoAscenderDescender_difference, m_tag, sDetails);
bOk = false;
}
}
else
{
v.Error(T.OS_2_TypoMetrics, E._TEST_E_TableMissing, m_tag, "head");
bRet = false;
}
if (bOk)
{
string sDetails = "sTypoAscender = " + sTypoAscender + ", sTypoDescender = " + sTypoDescender;
v.Pass(T.OS_2_TypoMetrics, P.OS_2_P_sTypoAscenderDescender, m_tag, sDetails);
}
}
if (v.PerformTest(T.OS_2_CodePageRanges))
{
if (version >= 1)
{
bRet &= CheckCodePageRanges(v, fontOwner);
}
}
if (v.PerformTest(T.OS_2_sxHeight))
{
if (version >= 2)
{
if (sxHeight == 0)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)0x0078) != 0)
{
v.Error(T.OS_2_sxHeight, E.OS_2_E_sxHeight, m_tag);
bRet = false;
}
else
{
v.Pass(T.OS_2_sxHeight, P.OS_2_P_sxHeight_zero, m_tag, sxHeight.ToString());
}
}
else
{
v.Pass(T.OS_2_sxHeight, P.OS_2_P_sxHeight_nonzero, m_tag, sxHeight.ToString());
}
}
}
if (v.PerformTest(T.OS_2_sCapHeight))
{
if (version >= 2)
{
if (sCapHeight == 0)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)0x0048) != 0)
{
v.Error(T.OS_2_sCapHeight, E.OS_2_E_sCapHeight, m_tag);
bRet = false;
}
else
{
v.Pass(T.OS_2_sCapHeight, P.OS_2_P_sCapHeight_zero, m_tag, sCapHeight.ToString());
}
}
else
{
v.Pass(T.OS_2_sCapHeight, P.OS_2_P_sCapHeight_nonzero, m_tag, sCapHeight.ToString());
}
}
}
if (v.PerformTest(T.OS_2_usDefaultChar))
{
if (version >= 2)
{
if (usDefaultChar == 0)
{
v.Pass(T.OS_2_usDefaultChar, P.OS_2_P_usDefaultChar_zero, m_tag);
}
else if (fontOwner.FastMapUnicodeToGlyphID((char)usDefaultChar) != 0)
{
v.Pass(T.OS_2_usDefaultChar, P.OS_2_P_usDefaultChar_nonzero, m_tag, "0x" + usDefaultChar.ToString("x4"));
}
else
{
v.Error(T.OS_2_usDefaultChar, E.OS_2_E_usDefaultChar_notmapped, m_tag, "0x" + usDefaultChar.ToString("x4"));
bRet = false;
}
}
}
if (v.PerformTest(T.OS_2_usBreakChar))
{
if (version >= 2)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)usBreakChar) != 0)
{
v.Pass(T.OS_2_usBreakChar, P.OS_2_P_usBreakChar_mapped, m_tag);
}
else
{
v.Error(T.OS_2_usBreakChar, E.OS_2_E_usBreakChar_notmapped, m_tag, "0x" + usBreakChar.ToString("x4"));
bRet = false;
}
}
}
if (v.PerformTest(T.OS_2_usMaxContext))
{
if (version >= 2)
{
ushort GPOSMaxContext = 0;
Table_GPOS GPOSTable = (Table_GPOS)fontOwner.GetTable("GPOS");
if (GPOSTable != null)
{
GPOSMaxContext = GPOSTable.GetMaxContext();
}
ushort GSUBMaxContext = 0;
Table_GSUB GSUBTable = (Table_GSUB)fontOwner.GetTable("GSUB");
if (GSUBTable != null)
{
GSUBMaxContext = GSUBTable.GetMaxContext();
}
ushort CalcMaxContext = Math.Max(GPOSMaxContext, GSUBMaxContext);
if (usMaxContext == CalcMaxContext)
{
v.Pass(T.OS_2_usMaxContext, P.OS_2_P_usMaxContext, m_tag, usMaxContext.ToString());
}
else
{
v.Error(T.OS_2_usMaxContext, E.OS_2_E_usMaxContext, m_tag, "calc = " + CalcMaxContext + ", actual = " + usMaxContext);
bRet = false;
}
}
}
return bRet;
}
private bool CheckNames(Validator v,
OTFontVal fontOwner,
PostNames pn,
uint iGlyph,
uint index)
{
bool bNamesOk = true;
string sName = GetNameString(index - 258);
System.Globalization.NumberStyles hexStyle =
System.Globalization.NumberStyles.HexNumber;
if (Is_uniXXXX(sName))
{
char c = (char)Int16.Parse(sName.Substring(3, 4), hexStyle);
if (fontOwner.FastMapUnicodeToGlyphID(c) != iGlyph)
{
char cMapped = fontOwner.MapGlyphIDToUnicode(iGlyph, (char)0);
string s = "glyph = " + iGlyph +
", char = U+" +
((uint)cMapped).ToString("X4")
+ ", name = " + sName;
v.Info(T.post_v2_names,
I.post_I_names_uni_unexpected,
m_tag, s);
bNamesOk = false;
}
}
else if (Is_uXXXXX(sName))
{
uint c = (uint)Int32.Parse(sName.Substring(1), hexStyle);
if (c < 0xffff)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)c) != iGlyph)
{
char cMapped = fontOwner.MapGlyphIDToUnicode(iGlyph,
(char)0);
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)cMapped).ToString("X4") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_uni_unexpected,
m_tag, s);
bNamesOk = false;
}
}
else
{
if (fontOwner.FastMapUnicode32ToGlyphID(c) != iGlyph)
{
uint cMapped =
fontOwner.MapGlyphIDToUnicode32(iGlyph, 0);
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)cMapped).ToString("X5") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_uni_unexpected,
m_tag, s);
bNamesOk = false;
}
}
}
else
{
// check the Adobe Glyph Names
char c = (char)fontOwner.MapGlyphIDToUnicode(iGlyph, (char)0);
if (c != 0xffff)
{
string sAdobeName = pn.GetAdobeGlyphName(c);
if (sAdobeName == null)
{
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)c).ToString("X4") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_noAdobe, m_tag, s);
bNamesOk = false;
}
else if (sName != sAdobeName)
{
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)c).ToString("X4") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_nomatch, m_tag, s);
bNamesOk = false;
}
}
}
return(bNamesOk);
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.PCLT_TableLength))
{
if (GetLength() == 54)
{
v.Pass(T.PCLT_TableLength, P.PCLT_P_TableLength, m_tag);
}
else
{
v.Error(T.PCLT_TableLength, E.PCLT_E_TableLength, m_tag, GetLength().ToString());
bRet = false;
}
}
if (v.PerformTest(T.PCLT_Version))
{
if (Version.GetUint() == 0x00010000)
{
v.Pass(T.PCLT_Version, P.PCLT_P_Version, m_tag);
}
else
{
v.Error(T.PCLT_Version, E.PCLT_E_Version, m_tag, "0x" + Version.GetUint().ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.PCLT_Pitch))
{
Table_hmtx hmtxTable = (Table_hmtx)fontOwner.GetTable("hmtx");
Table_maxp maxpTable = (Table_maxp)fontOwner.GetTable("maxp");
if (hmtxTable == null)
{
v.Error(T.PCLT_Pitch, E._TEST_E_TableMissing, m_tag, "hmtx");
bRet = false;
}
else if (maxpTable == null)
{
v.Error(T.PCLT_Pitch, E._TEST_E_TableMissing, m_tag, "maxp");
bRet = false;
}
else
{
uint iSpaceGlyph = fontOwner.FastMapUnicodeToGlyphID(' ');
if (iSpaceGlyph < fontOwner.GetMaxpNumGlyphs())
{
Table_hmtx.longHorMetric hmSpace = hmtxTable.GetOrMakeHMetric(iSpaceGlyph, fontOwner);
if (hmSpace != null)
{
if (Pitch == hmSpace.advanceWidth)
{
v.Pass(T.PCLT_Pitch, P.PCLT_P_Pitch, m_tag);
}
else
{
string s = "actual = " + Pitch + ", expected = " + hmSpace.advanceWidth;
v.Error(T.PCLT_Pitch, E.PCLT_E_Pitch, m_tag, s);
bRet = false;
}
}
}
else
{
// JJF Figure out what to do
v.Warning(T.PCLT_Pitch, W._TEST_W_ErrorInAnotherTable, m_tag, "can't validate Pitch field, error getting the space glyph");
bRet = false;
}
}
}
if (v.PerformTest(T.PCLT_Style))
{
ushort Posture = (ushort)(Style & 0x0003);
ushort Width = (ushort)((Style >> 2) & 0x0007);
ushort Structure = (ushort)((Style >> 5) & 0x001f);
ushort Reserved = (ushort)(Style >> 10);
bool bBitsOk = true;
if (Posture == 3)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Posture, m_tag, "0x" + Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (Width == 5)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Width, m_tag, "0x" + Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (Structure > 17)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Structure, m_tag, "0x" + Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (Reserved != 0)
{
v.Error(T.PCLT_Style, E.PCLT_E_Style_Reserved, m_tag, "0x" + Style.ToString("x4"));
bBitsOk = false;
bRet = false;
}
if (bBitsOk)
{
v.Pass(T.PCLT_Style, P.PCLT_P_Style, m_tag);
}
}
if (v.PerformTest(T.PCLT_StrokeWeight))
{
if (StrokeWeight >= -7 && StrokeWeight <= 7)
{
v.Pass(T.PCLT_StrokeWeight, P.PCLT_P_StrokeWeight, m_tag, StrokeWeight.ToString());
}
else
{
v.Error(T.PCLT_StrokeWeight, E.PCLT_E_StrokeWeight, m_tag, StrokeWeight.ToString());
bRet = false;
}
}
if (v.PerformTest(T.PCLT_WidthType))
{
if (WidthType >= -5 && WidthType <= 5)
{
v.Pass(T.PCLT_WidthType, P.PCLT_P_WidthType, m_tag, WidthType.ToString());
}
else
{
v.Error(T.PCLT_WidthType, E.PCLT_E_WidthType, m_tag, WidthType.ToString());
bRet = false;
}
}
if (v.PerformTest(T.PCLT_SerifStyle))
{
uint bot6 = (uint)SerifStyle & 0x3f;
uint top2 = (uint)SerifStyle >> 6;
bool bBitsOk = true;
if (bot6 > 12)
{
v.Error(T.PCLT_SerifStyle, E.PCLT_E_Bottom6, m_tag, "0x" + SerifStyle.ToString("x2"));
bBitsOk = false;
bRet = false;
}
if (top2 == 0 || top2 == 3)
{
v.Error(T.PCLT_SerifStyle, E.PCLT_E_Top2, m_tag);
bBitsOk = false;
bRet = false;
}
if (bBitsOk)
{
v.Pass(T.PCLT_SerifStyle, P.PCLT_P_SerifStyle, m_tag);
}
}
if (v.PerformTest(T.PCLT_Reserved))
{
if (Reserved == 0)
{
v.Pass(T.PCLT_Reserved, P.PCLT_P_Reserved, m_tag);
}
else
{
v.Error(T.PCLT_Reserved, E.PCLT_E_Reserved, m_tag, Reserved.ToString());
bRet = false;
}
}
return(bRet);
}
private bool CheckNames( Validator v,
OTFontVal fontOwner,
PostNames pn,
uint iGlyph,
uint index )
{
bool bNamesOk = true;
string sName = GetNameString(index-258);
System.Globalization.NumberStyles hexStyle =
System.Globalization.NumberStyles.HexNumber;
if (Is_uniXXXX(sName))
{
char c = (char)Int16.Parse(sName.Substring(3, 4), hexStyle );
if (fontOwner.FastMapUnicodeToGlyphID(c) != iGlyph)
{
char cMapped = fontOwner.MapGlyphIDToUnicode(iGlyph,(char)0);
string s = "glyph = " + iGlyph +
", char = U+" +
((uint)cMapped).ToString("X4")
+ ", name = " + sName;
v.Info(T.post_v2_names,
I.post_I_names_uni_unexpected,
m_tag, s);
bNamesOk = false;
}
}
else if (Is_uXXXXX(sName))
{
uint c = (uint)Int32.Parse(sName.Substring(1), hexStyle );
if (c < 0xffff)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)c) != iGlyph)
{
char cMapped = fontOwner.MapGlyphIDToUnicode(iGlyph,
(char)0);
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)cMapped).ToString("X4") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_uni_unexpected,
m_tag, s);
bNamesOk = false;
}
}
else
{
if (fontOwner.FastMapUnicode32ToGlyphID(c) != iGlyph)
{
uint cMapped =
fontOwner.MapGlyphIDToUnicode32(iGlyph, 0);
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)cMapped).ToString("X5") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_uni_unexpected,
m_tag, s);
bNamesOk = false;
}
}
}
else
{
// check the Adobe Glyph Names
char c = (char)fontOwner.MapGlyphIDToUnicode(iGlyph, (char)0);
if (c != 0xffff)
{
string sAdobeName = pn.GetAdobeGlyphName(c);
if (sAdobeName == null)
{
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)c).ToString("X4") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_noAdobe, m_tag,s);
bNamesOk = false;
}
else if (sName != sAdobeName)
{
string s = "glyph = " + iGlyph + ", char = U+" +
((uint)c).ToString("X4") + ", name = " + sName;
v.Info(T.post_v2_names, I.post_I_names_nomatch, m_tag,s);
bNamesOk = false;
}
}
}
return bNamesOk;
}