public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check for data overlap
bRet &= ((val_JSTF)table).ValidateNoOverlap(m_offsetJstfGPOSModList, CalcLength(), v, sIdentity, table.GetTag());
// check GPOSLookupIndex array size
if (m_offsetJstfGPOSModList + (uint)FieldOffsets.GPOSLookupIndex + LookupCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.JSTF_E_Array_pastEOT, table.m_tag, sIdentity + ", GPOSLookupIndex");
bRet = false;
}
// check that GPOSLookupIndex is in increasing numerical order
if (LookupCount > 1)
{
for (uint i = 0; i < LookupCount - 1; i++)
{
if (GetGPOSLookupIndex(i) >= GetGPOSLookupIndex(i + 1))
{
v.Error(T.T_NULL, E.JSTF_E_Array_order, table.m_tag, sIdentity + ", GPOSLookupIndex");
bRet = false;
break;
}
}
}
return(bRet);
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
Table_maxp maxpTable = (Table_maxp)fontOwner.GetTable("maxp");
if (maxpTable == null)
{
v.Error(T.T_NULL, E._TEST_E_TableMissing, m_tag, "Unable to test this table, maxp table is invalid or missing");
return(false);
}
if (v.PerformTest(T.vmtx_TableLength))
{
uint CalcTableLength = GetNumOfLongVerMetrics(fontOwner) * 4
+ (fontOwner.GetMaxpNumGlyphs() - GetNumOfLongVerMetrics(fontOwner)) * 2;
if (CalcTableLength == GetLength())
{
v.Pass(T.vmtx_TableLength, P.vmtx_P_TableLength, m_tag);
}
else
{
v.Error(T.vmtx_TableLength, E.vmtx_E_TableLength, m_tag);
bRet = false;
}
}
return(bRet);
}
protected bool CheckDirectoryEntriesNonZero(Validator v)
{
Debug.Assert(m_OffsetTable != null);
bool bRet = false;
if (m_OffsetTable != null)
{
bRet = true;
for (int i = 0; i < m_OffsetTable.DirectoryEntries.Count; i++)
{
DirectoryEntry de = (DirectoryEntry)m_OffsetTable.DirectoryEntries[i];
if (de.tag == 0)
{
v.Error(E._DE_E_TagZero, null);
bRet = false;
}
if (de.length == 0)
{
v.Error(T.T_NULL, E._DE_E_LengthZero, null, de.tag);
bRet = false;
}
if (de.offset == 0)
{
v.Error(T.T_NULL, E._DE_E_OffsetZero, null, de.tag);
bRet = false;
}
}
}
return(bRet);
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.VORG_CFF_Font))
{
if (fontOwner.ContainsPostScriptOutlines())
{
v.Pass(T.VORG_CFF_Font, P.VORG_P_CFF_Font, m_tag);
}
else
{
v.Error(T.VORG_CFF_Font, E.VORG_E_CFF_Font, m_tag);
bRet = false;
}
}
if (v.PerformTest(T.VORG_Version))
{
if (majorVersion == 1 && minorVersion == 0)
{
v.Pass(T.VORG_Version, P.VORG_P_Version, m_tag);
}
else
{
v.Error(T.VORG_Version, E.VORG_E_Version, m_tag);
bRet = false;
}
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check for data overlap
bRet &= ((val_JSTF)table).ValidateNoOverlap(m_offsetJstfLangSys, CalcLength(), v, sIdentity, table.GetTag());
// check the JstfPriority array length
if (m_offsetJstfLangSys + (uint)FieldOffsets.JstfPriorityOffsets + JstfPriorityCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.JSTF_E_Array_pastEOT, table.m_tag, sIdentity + ", JstfPriority array");
bRet = false;
}
// check each JstfPriority offset
for (uint i = 0; i < JstfPriorityCount; i++)
{
if (m_offsetJstfLangSys + GetJstfPriorityOffset(i) > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.JSTF_E_Offset_PastEOT, table.m_tag, sIdentity + ", JstfPriority[" + i + "]");
bRet = false;
}
}
// check each JstfPriority table
for (uint i = 0; i < JstfPriorityCount; i++)
{
JstfPriority_val jp = GetJstfPriorityTable_val(i);
bRet &= jp.Validate(v, sIdentity + ", JstfPriority[" + i + "]", table);
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check for data overlap
bRet &= ((val_JSTF)table).ValidateNoOverlap(m_offsetJstfMax, CalcLength(), v, sIdentity, table.GetTag());
// check the Lookup array length
if (m_offsetJstfMax + (uint)FieldOffsets.LookupOffsets + LookupCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.JSTF_E_Array_pastEOT, table.m_tag, sIdentity + ", Lookup");
bRet = false;
}
// check each Lookup offset
for (uint i = 0; i < LookupCount; i++)
{
if (m_offsetJstfMax + GetLookupOffset(i) > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.JSTF_E_Offset_PastEOT, table.m_tag, sIdentity + ", Lookup[" + i + "]");
bRet = false;
}
}
// check each Lookup table
for (uint i = 0; i < LookupCount; i++)
{
LookupTable_val lt = GetLookupTable_val(i);
bRet &= lt.Validate(v, sIdentity + ", Lookup[" + i + "]", table);
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check for data overlap
bRet &= ((val_JSTF)table).ValidateNoOverlap(m_offsetExtenderGlyph, CalcLength(), v, sIdentity, table.GetTag());
// check the ExtenderGlyph array length
if (m_offsetExtenderGlyph + (uint)FieldOffsets.ExtenderGlyphs + GlyphCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.JSTF_E_Array_pastEOT, table.m_tag, sIdentity + ", ExtenderGlyph array");
bRet = false;
}
// check that the ExtenderGlyph array is in increasing numerical order
if (GlyphCount > 1)
{
for (uint i = 0; i < GlyphCount - 1; i++)
{
if (GetExtenderGlyph(i) >= GetExtenderGlyph(i + 1))
{
v.Error(T.T_NULL, E.JSTF_E_Array_order, table.m_tag, sIdentity + ", ExtenderGlyph array");
bRet = false;
break;
}
}
}
return(bRet);
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
Table_maxp maxpTable = (Table_maxp)fontOwner.GetTable("maxp");
if (maxpTable == null)
{
v.Error(T.T_NULL, E._TEST_E_TableMissing, m_tag, "Unable to test this table, maxp table is invalid or missing");
return false;
}
if (v.PerformTest(T.vmtx_TableLength))
{
uint CalcTableLength = GetNumOfLongVerMetrics(fontOwner)*4
+ (fontOwner.GetMaxpNumGlyphs() - GetNumOfLongVerMetrics(fontOwner))*2;
if (CalcTableLength == GetLength())
{
v.Pass(T.vmtx_TableLength, P.vmtx_P_TableLength, m_tag);
}
else
{
v.Error(T.vmtx_TableLength, E.vmtx_E_TableLength, m_tag);
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_GDEF)table).ValidateNoOverlap(m_offsetMarkGlyphSetsDefTable, CalcLength(), v, sIdentity, table.GetTag());
if (MarkSetTableFormat != 1)
{
v.Error(T.T_NULL, E.GDEF_E_MarkSetTableFormat, table.m_tag,
sIdentity + ": MarkSetTableFormat=" + MarkSetTableFormat.ToString());
bRet = false;
}
if (m_offsetMarkGlyphSetsDefTable + CalcLength() > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.GDEF_E_MarkGlyphSetsDefTable_PastEOT, table.m_tag, sIdentity);
bRet = false;
}
v.Info(T.T_NULL, I.GDEF_I_MarkSetCount, table.m_tag, sIdentity + ": MarkSetCount=" + MarkSetCount);
// TODO: check Coverage [MarkSetCount] array?
if (bRet)
{
v.Pass(T.T_NULL, P.GDEF_P_MarkGlyphSetsDefTable, table.m_tag, sIdentity);
}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.VORG_CFF_Font))
{
if (fontOwner.ContainsPostScriptOutlines())
{
v.Pass(T.VORG_CFF_Font, P.VORG_P_CFF_Font, m_tag);
}
else
{
v.Error(T.VORG_CFF_Font, E.VORG_E_CFF_Font, m_tag);
bRet = false;
}
}
if (v.PerformTest(T.VORG_Version))
{
if (majorVersion == 1 && minorVersion == 0)
{
v.Pass(T.VORG_Version, P.VORG_P_Version, m_tag);
}
else
{
v.Error(T.VORG_Version, E.VORG_E_Version, m_tag);
bRet = false;
}
}
return bRet;
}
bool Validate_indexSubTable_format5(Validator v, indexSubTable5 ist5, indexSubTableArray ista, string sID, OTFontVal fontOwner)
{
bool bOk = true;
Table_EBDT EBDTTable = (Table_EBDT)fontOwner.GetTable("EBDT");
// header has already been validated
// validate the image size
if (ist5.numGlyphs * ist5.imageSize > EBDTTable.GetLength())
{
string sDetails = "images extend past end of EBDT table: " + sID + ", imageSize = " + ist5.imageSize
+ ", EBDT length = " + EBDTTable.GetLength();
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
// validate the bigGlyphMetrics
val_EBDT.bigGlyphMetrics_val bgm = val_EBDT.bigGlyphMetrics_val.CreateFromBigGlyphMetrics(ist5.bigMetrics);
bgm.Validate(v, sID, this);
// validate numGlyphs
uint nGlyphsInRange = (uint)ista.lastGlyphIndex - ista.firstGlyphIndex + 1;
if (ist5.numGlyphs > nGlyphsInRange)
{
string sDetails = "numGlyphs is invalid: " + sID +
", numGlyphs = " + ist5.numGlyphs +
", indexSubTableArray.firstGlyphIndex = " + ista.firstGlyphIndex +
", indexSubTableArray.lastGlyphIndex = " + ista.lastGlyphIndex;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
// validate glyphCodeArray
for (ushort i = 0; i < ist5.numGlyphs; i++)
{
ushort idGlyph = ist5.GetGlyphCode(i);
if (idGlyph < ista.firstGlyphIndex || idGlyph > ista.lastGlyphIndex)
{
string sDetails = "invalid glyph id: " + sID +
", glyphCodeArray[" + i + "] = " + idGlyph +
", indexSubTableArray.firstGlyphIndex = " + ista.firstGlyphIndex +
", indexSubTableArray.lastGlyphIndex = " + ista.lastGlyphIndex;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
}
return(bOk);
}
bool Validate_indexSubHeader(Validator v, indexSubHeader iSH, string sID, OTFontVal fontOwner)
{
bool bOk = true;
Table_EBDT EBDTTable = (Table_EBDT)fontOwner.GetTable("EBDT");
if (iSH.indexFormat < 1 || iSH.indexFormat > 5)
{
string sDetails = "invalid indexFormat: " + sID + ", indexFormat = " + iSH.indexFormat;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
if ((iSH.imageFormat < 1 || iSH.imageFormat > 9 || iSH.imageFormat == 3) &&
!(version.GetUint() == 0x00030000 &&
(iSH.imageFormat == 17 || iSH.imageFormat == 18 || iSH.imageFormat == 19)
))
{
string sDetails = "invalid imageFormat: " + sID + ", imageFormat = " + iSH.imageFormat;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
bool bInconsistentFormats = false;
if (iSH.indexFormat == 1 || iSH.indexFormat == 3 || iSH.indexFormat == 4)
{
if (iSH.imageFormat == 5)
{
bInconsistentFormats = true;
}
}
else
{
if (iSH.imageFormat != 5)
{
bInconsistentFormats = true;
}
}
if (bInconsistentFormats)
{
string sDetails = "inconsistent formats: " + sID + ", indexFormat = " + iSH.indexFormat + ", imageFormat = " + iSH.imageFormat;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
if (EBDTTable != null)
{
if (iSH.imageDataOffset > EBDTTable.GetLength())
{
string sDetails = "invalid imageDataOffset: " + sID + ", imageDataOffset = " + iSH.imageDataOffset;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
}
return(bOk);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_BASE)table).ValidateNoOverlap(m_offsetBaseScriptListTable, CalcLength(), v, sIdentity, table.GetTag());
bool bOrderOk = true;
if (BaseScriptCount > 1)
{
for (uint i = 0; i < BaseScriptCount - 1; i++)
{
BaseScriptRecord ThisBsr = GetBaseScriptRecord(i);
BaseScriptRecord NextBsr = GetBaseScriptRecord(i + 1);
if (ThisBsr.BaseScriptTag >= NextBsr.BaseScriptTag)
{
v.Error(T.T_NULL, E.BASE_E_BaseScriptList_Order, table.m_tag, sIdentity);
bOrderOk = false;
bRet = false;
break;
}
}
}
if (bOrderOk)
{
v.Pass(T.T_NULL, P.BASE_P_BaseScriptList_Order, table.m_tag, sIdentity);
}
bool bOffsetsOk = true;
for (uint i = 0; i < BaseScriptCount; i++)
{
BaseScriptRecord bsr = GetBaseScriptRecord(i);
if (bsr.BaseScriptOffset + m_offsetBaseScriptListTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_BaseScriptList_Offset, table.m_tag, sIdentity + ", index = " + i);
bOffsetsOk = false;
bRet = false;
}
}
if (bOffsetsOk)
{
v.Pass(T.T_NULL, P.BASE_P_BaseScriptList_Offset, table.m_tag, sIdentity);
}
for (uint i = 0; i < BaseScriptCount; i++)
{
BaseScriptRecord bsr = GetBaseScriptRecord(i);
BaseScriptTable_val bst = GetBaseScriptTable_val(bsr);
bst.Validate(v, sIdentity + ", BaseScriptRecord[" + i + "](" + bsr.BaseScriptTag + ")", table);
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_GDEF)table).ValidateNoOverlap(m_offsetLigCaretListTable, CalcLength(), v, sIdentity, table.GetTag());
if (CoverageOffset == 0)
{
v.Error(T.T_NULL, E.GDEF_E_LigCaretListTable_CoverageOffset_0, table.m_tag, sIdentity);
bRet = false;
}
else if (CoverageOffset > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.GDEF_E_LigCaretListTable_CoverageOffset_invalid, table.m_tag, sIdentity);
bRet = false;
}
else
{
v.Pass(T.T_NULL, P.GDEF_P_LigCaretListTable_CoverageOffset, table.m_tag, sIdentity);
CoverageTable_val ct = GetCoverageTable_val();
ct.Validate(v, sIdentity + ", Coverage", table);
}
if (m_offsetLigCaretListTable + (uint)FieldOffsets.LigGlyphOffsets + LigGlyphCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.GDEF_E_LigCaretListTable_LigGlyphArray_PastEOT, table.m_tag, sIdentity);
bRet = false;
}
bool bOffsetsOk = true;
for (uint i = 0; i < LigGlyphCount; i++)
{
if (m_offsetLigCaretListTable + GetLigGlyphOffset(i) > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.GDEF_E_LigCaretListTable_LigGlyphOffset, table.m_tag, sIdentity + ", index = " + i);
bOffsetsOk = false;
bRet = false;
}
else
{
LigGlyphTable_val lgt = GetLigGlyphTable_val(i);
lgt.Validate(v, sIdentity + ", LigGlyph[" + i + "]", table);
}
}
if (bOffsetsOk)
{
v.Pass(T.T_NULL, P.GDEF_P_LigCaretListTable_LigGlyphArray, table.m_tag, sIdentity);
}
return(bRet);
}
bool Validate_indexSubTable_format4(Validator v, indexSubTable4 ist4, indexSubTableArray ista, string sID, OTFontVal fontOwner)
{
bool bOk = true;
Table_EBDT EBDTTable = (Table_EBDT)fontOwner.GetTable("EBDT");
// header has already been validated
// validate numGlyphs
uint nGlyphsInRange = (uint)ista.lastGlyphIndex - ista.firstGlyphIndex + 1;
if (ist4.numGlyphs > nGlyphsInRange)
{
string sDetails = "numGlyphs is invalid: " + sID +
", numGlyphs = " + ist4.numGlyphs +
", indexSubTableArray.firstGlyphIndex = " + ista.firstGlyphIndex +
", indexSubTableArray.lastGlyphIndex = " + ista.lastGlyphIndex;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
// validate code offset pairs
uint nEBDTLength = EBDTTable.GetLength();
for (ushort idGlyph = 0; idGlyph < ist4.numGlyphs; idGlyph++)
{
indexSubTable4.codeOffsetPair cop = ist4.GetCodeOffsetPair(idGlyph);
// glyph code
if (cop.glyphCode < ista.firstGlyphIndex || cop.glyphCode > ista.lastGlyphIndex)
{
string sDetails = "glyph code is invalid: " + sID +
", codeOffsetPair[" + idGlyph + "]" +
", indexSubTableArray.firstGlyphIndex = " + ista.firstGlyphIndex +
", indexSubTableArray.lastGlyphIndex = " + ista.lastGlyphIndex;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
// offset
if (cop.offset > nEBDTLength)
{
string sDetails = "invalid offset: " + sID +
", codeOffsetPair[" + idGlyph + "].offset = " + cop.offset +
", EBDT length = " + nEBDTLength;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
}
return(bOk);
}
protected bool CheckTagNames(Validator v)
{
Debug.Assert(m_OffsetTable != null);
bool bRet = false;
if (m_OffsetTable != null)
{
bRet = true;
for (int i = 0; i < m_OffsetTable.DirectoryEntries.Count; i++)
{
DirectoryEntry de = (DirectoryEntry)m_OffsetTable.DirectoryEntries[i];
if (!de.tag.IsValid())
{
v.Error(T.T_NULL, E._DE_E_TagName, null, (string)de.tag);
bRet = false;
}
}
if (bRet == true)
{
v.Pass(P._DE_P_TagName, null);
}
}
return(bRet);
}
bool Validate_indexSubTable_format2(Validator v, indexSubTable2 ist2, indexSubTableArray ista, string sID, OTFontVal fontOwner)
{
bool bOk = true;
Table_EBDT EBDTTable = (Table_EBDT)fontOwner.GetTable("EBDT");
// header has already been validated
// validate the image size
uint nGlyphsInRange = (uint)ista.lastGlyphIndex - ista.firstGlyphIndex + 1;
if (nGlyphsInRange * ist2.imageSize > EBDTTable.GetLength())
{
string sDetails = "images extend past end of EBDT table: " + sID + ", imageSize = " + ist2.imageSize
+ ", EBDT length = " + EBDTTable.GetLength();
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
// validate the bigGlyphMetrics
val_EBDT.bigGlyphMetrics_val bgm = val_EBDT.bigGlyphMetrics_val.CreateFromBigGlyphMetrics(ist2.bigMetrics);
bgm.Validate(v, sID, this);
return(bOk);
}
bool Validate_indexSubTable_format3(Validator v, indexSubTable3 ist3, indexSubTableArray ista, string sID, OTFontVal fontOwner)
{
bool bOk = true;
Table_EBDT EBDTTable = (Table_EBDT)fontOwner.GetTable("EBDT");
// header has already been validated
// validate the array of offsets
int nArrSize = ista.lastGlyphIndex - ista.firstGlyphIndex + 1;
uint nEBDTLength = EBDTTable.GetLength();
for (ushort i = 0; i < nArrSize; i++)
{
uint offsetImage = ist3.GetOffset(i) + ist3.header.imageDataOffset;
if (offsetImage > nEBDTLength)
{
string sDetails = "invalid offset: " + sID + ", offset[" + i + "] = " + offsetImage +
", EBDT length = " + nEBDTLength;
v.Error(T.EBLC_indexSubTables, E.EBLC_E_indexSubTables, m_tag, sDetails);
bOk = false;
}
}
return(bOk);
}
public bool ValidateNumEntries(Validator validator,
OTFont fontOwner)
{
int numGlyph = this.NumGlyph(fontOwner);
int numEntry = this.NumEntry(fontOwner);
if ((numGlyph == Table_loca.ValueInvalid) ||
(numEntry == Table_loca.ValueInvalid) ||
(numEntry != numGlyph + 1))
{
if (validator != null)
{
validator.Error(T.T_NULL,
E.loca_E_NumEntries,
m_tag,
"number of entries=" + numEntry + " number of glyphs=" + numGlyph);
}
return(false);
}
else
{
if (validator != null)
{
validator.Pass(P.loca_P_NumEntries, m_tag);
}
return(true);
}
}
public bool ValidateNumEntries(Validator validator,
OTFont fontOwner)
{
int numGlyph=this.NumGlyph(fontOwner);
int numEntry=this.NumEntry(fontOwner);
if ((numGlyph==Table_loca.ValueInvalid)||
(numEntry==Table_loca.ValueInvalid)||
(numEntry!=numGlyph+1))
{
if (validator!=null)
{
validator.Error(T.T_NULL,
E.loca_E_NumEntries,
m_tag,
"number of entries="+numEntry+" number of glyphs="+numGlyph);
}
return false;
}
else
{
if (validator!=null)
{
validator.Pass(P.loca_P_NumEntries, m_tag);
}
return true;
}
}
protected bool CheckNoDuplicateTags(Validator v)
{
Debug.Assert(m_OffsetTable != null);
bool bRet = false;
if (m_OffsetTable != null)
{
bRet = true;
for (int i = 0; i < m_OffsetTable.DirectoryEntries.Count; i++)
{
DirectoryEntry de1 = (DirectoryEntry)m_OffsetTable.DirectoryEntries[i];
// compare this directory entry with every one that follows it
for (int j = i + 1; j < m_OffsetTable.DirectoryEntries.Count; j++)
{
DirectoryEntry de2 = (DirectoryEntry)m_OffsetTable.DirectoryEntries[j];
if (de1.tag == de2.tag)
{
v.Error(T.T_NULL, E._DE_E_DuplicateTag, null, de1.tag);
}
}
}
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_BASE)table).ValidateNoOverlap(m_offsetBaseTagListTable, CalcLength(), v, sIdentity, table.GetTag());
bool bTagsValid = true;
for (uint i = 0; i < BaseTagCount; i++)
{
OTTag BaselineTag = GetBaselineTag(i);
if (!BaselineTag.IsValid())
{
v.Error(T.T_NULL, E.BASE_E_BaseTagList_TagValid, table.m_tag, sIdentity + ", tag = 0x" + ((uint)BaselineTag).ToString("x8"));
bTagsValid = false;
bRet = false;
}
}
if (bTagsValid)
{
v.Pass(T.T_NULL, P.BASE_P_BaseTagList_TagValid, table.m_tag, sIdentity);
}
bool bOrderOk = true;
if (BaseTagCount > 1)
{
for (uint i = 0; i < BaseTagCount - 1; i++)
{
OTTag ThisTag = GetBaselineTag(i);
OTTag NextTag = GetBaselineTag(i + 1);
if (ThisTag >= NextTag)
{
v.Error(T.T_NULL, E.BASE_E_BaseTagList_TagOrder, table.m_tag, sIdentity);
bOrderOk = false;
bRet = false;
break;
}
}
}
if (bOrderOk)
{
v.Pass(T.T_NULL, P.BASE_P_BaseTagList_TagOrder, table.m_tag, sIdentity);
}
return(bRet);
}
private bool ValidateOffsetsIncreasing(Validator validator,
OTFont fontOwner)
{
int cntErr = 0;
int numEntry = this.NumEntry(fontOwner);
if (numEntry == Table_loca.ValueInvalid)
{
if (validator != null)
{
validator.Error(T.T_NULL, E.loca_E_OffsetsIncreasing,
m_tag,
"Unable to determine the number of entries in the 'loca' table");
}
return(false);
}
int offsGlyfCur, offsGlyfNext;
for (int iEntry = 0; iEntry < numEntry - 1; iEntry++)
{
if ((!this.GetGlyfOffset(iEntry, out offsGlyfCur, validator, fontOwner)) ||
(!this.GetGlyfOffset(iEntry + 1, out offsGlyfNext, validator, fontOwner)))
{
cntErr++;
continue;
}
if (offsGlyfNext < offsGlyfCur)
{
cntErr++;
}
}
if (validator != null)
{
if (cntErr == 0)
{
validator.Pass(P.loca_P_OffsetsIncreasing, m_tag);
}
else
{
validator.Error(T.T_NULL, E.loca_E_OffsetsIncreasing, m_tag,
"Number of glyphs with the error = " + cntErr);
}
}
return(cntErr == 0);
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.vhea_version))
{
if (version.GetUint() == 0x00010000 || version.GetUint() == 0x00011000)
{
v.Pass(T.vhea_version, P.vhea_P_version, m_tag, "0x" + version.GetUint().ToString("x8"));
}
else
{
v.Error(T.vhea_version, E.vhea_E_version, m_tag, "0x" + version.GetUint().ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.vhea_ReservedFields))
{
if (reserved1 == 0 && reserved2 == 0 && reserved3 == 0 && reserved4 == 0)
{
v.Pass(T.vhea_ReservedFields, P.vhea_P_ReservedFields, m_tag);
}
else
{
v.Error(T.vhea_ReservedFields, E.vhea_E_ReservedFields, m_tag);
bRet = false;
}
}
if (v.PerformTest(T.vhea_metricDataFormat))
{
if (metricDataFormat == 0)
{
v.Pass(T.vhea_metricDataFormat, P.vhea_P_metricDataFormat, m_tag);
}
else
{
v.Error(T.vhea_metricDataFormat, E.vhea_E_metricDataFormat, m_tag, metricDataFormat.ToString());
bRet = false;
}
}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.vhea_version))
{
if (version.GetUint() == 0x00010000 || version.GetUint() == 0x00011000)
{
v.Pass(T.vhea_version, P.vhea_P_version, m_tag, "0x" + version.GetUint().ToString("x8"));
}
else
{
v.Error(T.vhea_version, E.vhea_E_version, m_tag, "0x" + version.GetUint().ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.vhea_ReservedFields))
{
if (reserved1 == 0 && reserved2 == 0 && reserved3 == 0 && reserved4 == 0)
{
v.Pass(T.vhea_ReservedFields, P.vhea_P_ReservedFields, m_tag);
}
else
{
v.Error(T.vhea_ReservedFields, E.vhea_E_ReservedFields, m_tag);
bRet = false;
}
}
if (v.PerformTest(T.vhea_metricDataFormat))
{
if (metricDataFormat == 0)
{
v.Pass(T.vhea_metricDataFormat, P.vhea_P_metricDataFormat, m_tag);
}
else
{
v.Error(T.vhea_metricDataFormat, E.vhea_E_metricDataFormat, m_tag, metricDataFormat.ToString());
bRet = false;
}
}
return(bRet);
}
protected bool CheckTablesInFileAndNotOverlapping(Validator v)
{
Debug.Assert(m_OffsetTable != null);
bool bRet = false;
if (m_OffsetTable != null)
{
bRet = true;
for (int i = 0; i < m_OffsetTable.DirectoryEntries.Count; i++)
{
DirectoryEntry de = (DirectoryEntry)m_OffsetTable.DirectoryEntries[i];
// make sure the offset plus length is within the file
if (de.offset + de.length > GetFile().GetFileLength())
{
v.Error(T.T_NULL, E._DE_E_TableEndPastEOF, de.tag, de.tag);
bRet = false;
}
// make sure the table doesn't overlap any other tables
for (int j = 0; j < m_OffsetTable.DirectoryEntries.Count; j++)
{
if (i != j) // don't compare the table to itself!
{
DirectoryEntry de2 = (DirectoryEntry)m_OffsetTable.DirectoryEntries[j];
if (
// make sure the table doesn't start inside a second table
(de.offset > de2.offset && de.offset < de2.offset + de2.length) ||
// make sure the table doesn't end inside a second table
(de.offset + de.length > de2.offset && de.offset + de.length < de2.offset + de2.length)
)
{
string sDetails = de.tag + " overlaps " + de2.tag;
v.Error(T.T_NULL, E._DE_E_OverlappingTable, de.tag, sDetails);
}
}
}
}
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_BASE)table).ValidateNoOverlap(m_offsetAxisTable, CalcLength(), v, sIdentity, table.GetTag());
if (BaseTagListOffset == 0)
{
v.Pass(T.T_NULL, P.BASE_P_AxisTable_BaseTagListOffset_null, table.m_tag, sIdentity);
}
else if (BaseTagListOffset + m_offsetAxisTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_AxisTable_BaseTagListOffset, table.m_tag, sIdentity);
bRet = false;
}
else
{
v.Pass(T.T_NULL, P.BASE_P_AxisTable_BaseTagListOffset_valid, table.m_tag, sIdentity);
BaseTagListTable_val btlt = GetBaseTagListTable_val();
btlt.Validate(v, sIdentity, table);
}
if (BaseScriptListOffset == 0)
{
v.Error(T.T_NULL, E.BASE_E_AxisTable_BaseScriptListOffset_null, table.m_tag, sIdentity);
bRet = false;
}
else if (BaseScriptListOffset + m_offsetAxisTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_AxisTable_BaseScriptListOffset, table.m_tag, sIdentity);
bRet = false;
}
else
{
v.Pass(T.T_NULL, P.BASE_P_AxisTable_BaseScriptListOffset_valid, table.m_tag, sIdentity);
BaseScriptListTable_val bslt = GetBaseScriptListTable_val();
bslt.Validate(v, sIdentity, table);
}
return(bRet);
}
public bool ValidateNoOverlap(uint offset, uint length, Validator v, string sIdentity, OTTag tag)
{
bool bValid = m_DataOverlapDetector.CheckForNoOverlap(offset, length);
if (!bValid)
{
v.Error(T.T_NULL, E._Table_E_DataOverlap, tag, sIdentity + ", offset = " + offset + ", length = " + length);
}
return(bValid);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_GDEF)table).ValidateNoOverlap(m_offsetLigGlyphTable, CalcLength(), v, sIdentity, table.GetTag());
if (m_offsetLigGlyphTable + (uint)FieldOffsets.CaretValueOffsets + CaretCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.GDEF_E_LigGlyphTable_CaretValueArray_PastEOT, table.m_tag, sIdentity);
bRet = false;
}
bool bOffsetsOk = true;
for (uint i = 0; i < CaretCount; i++)
{
if (m_offsetLigGlyphTable + GetCaretValueOffset(i) > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.GDEF_E_LigGlyphTable_CaretValueOffset, table.m_tag, sIdentity);
bOffsetsOk = false;
bRet = false;
}
}
if (bOffsetsOk)
{
v.Pass(T.T_NULL, P.GDEF_P_LigGlyphTable_CaretValueArray, table.m_tag, sIdentity);
}
for (uint i = 0; i < CaretCount; i++)
{
CaretValueTable cvt = GetCaretValueTable(i);
if (cvt.CaretValueFormat < 1 || cvt.CaretValueFormat > 3)
{
v.Error(T.T_NULL, E.GDEF_E_CaretValueTable_Format, table.m_tag, sIdentity + ", CaretValue[" + i + "], format = " + cvt.CaretValueFormat);
bRet = false;
}
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_BASE)table).ValidateNoOverlap(m_offsetBaseValuesTable, CalcLength(), v, sIdentity, table.GetTag());
// check BaseCoord offsets
bool bOffsetsOk = true;
for (uint i = 0; i < BaseCoordCount; i++)
{
ushort bco = GetBaseCoordOffset(i);
if (bco == 0)
{
v.Error(T.T_NULL, E.BASE_E_BaseValuesTable_BCO_0, table.m_tag, sIdentity + ", BaseCoordOffset index = " + i);
bOffsetsOk = false;
bRet = false;
}
else if (bco + m_offsetBaseValuesTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_BaseValuesTable_BCO_invalid, table.m_tag, sIdentity + ", BaseCoordOffset index = " + i);
bOffsetsOk = false;
bRet = false;
}
}
if (bOffsetsOk)
{
v.Pass(T.T_NULL, P.BASE_P_BaseValuesTable_BCO, table.m_tag, sIdentity);
}
// check the BaseCoord tables
for (uint i = 0; i < BaseCoordCount; i++)
{
BaseCoordTable_val bct = GetBaseCoordTable_val(i);
bct.Validate(v, sIdentity, table);
}
return(bRet);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_BASE)table).ValidateNoOverlap(m_offsetBaseCoordTable, CalcLength(), v, sIdentity, table.GetTag());
if (BaseCoordFormat == 1 || BaseCoordFormat == 2 || BaseCoordFormat == 3)
{
v.Pass(T.T_NULL, P.BASE_P_BaseCoordTable_format, table.m_tag, sIdentity);
}
else
{
v.Error(T.T_NULL, E.BASE_E_BaseCoordTable_format, table.m_tag, sIdentity + ", format = " + BaseCoordFormat);
}
return(bRet);
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.cvt_length))
{
if ((m_bufTable.GetLength() & 1) != 0)
{
v.Error(T.cvt_length, E.cvt_E_length_odd, m_tag);
bRet = false;
}
else
{
v.Pass(T.cvt_length, P.cvt_P_length_even, m_tag);
}
}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.cvt_length))
{
if ((m_bufTable.GetLength() & 1) != 0)
{
v.Error(T.cvt_length, E.cvt_E_length_odd, m_tag);
bRet = false;
}
else
{
v.Pass(T.cvt_length, P.cvt_P_length_even, m_tag);
}
}
return(bRet);
}
/*
* METHODS PRIVATE: GLYF ACCESS
*/
private bool GetGlyfOffset(int indexGlyph, out int offsGlyf,
Validator validator, OTFont fontOwner)
{
offsGlyf = Table_loca.ValueInvalid;
int numEntry = this.NumEntry(fontOwner);
if (numEntry == Table_loca.ValueInvalid)
{
return(false);
}
if ((indexGlyph < 0) || (indexGlyph >= numEntry))
{
//Debug.Assert(false, "Table_loca: GetGlyfOffset");
return(false);
}
int sizeEntry = this.SizeEntry(fontOwner);
if (sizeEntry == Table_loca.ValueInvalid)
{
return(false);
}
int pozLoca = sizeEntry * indexGlyph;
if (pozLoca + sizeEntry > this.GetLength())
{
if (validator != null)
{
validator.Error(E._GEN_E_OffsetExceedsTableLength, "loca");
}
return(false);
}
if (sizeEntry == 2)
{
offsGlyf = 2 * m_bufTable.GetUshort((uint)pozLoca);
}
else
{
offsGlyf = (int)(m_bufTable.GetUint((uint)pozLoca));
}
return(true);
}
/*
* VALIDATION FUNCTIONS
*/
public bool ValidateFormat(Validator validator,
OTFont fontOwner)
{
int format=this.Format(fontOwner);
if ((format!=0)&&(format!=1))
{
if (validator!=null)
{
validator.Error(E.loca_E_Format, m_tag);
}
return false;
}
else
{
if (validator!=null)
{
validator.Pass(P.loca_P_Format, m_tag);
}
return true;
}
}
protected bool CheckTagsAscending(Validator v)
{
Debug.Assert(m_OffsetTable != null);
bool bRet = false;
if (m_OffsetTable != null)
{
bRet = true;
for (int i = 0; i < m_OffsetTable.DirectoryEntries.Count; i++)
{
DirectoryEntry de1 = (DirectoryEntry)m_OffsetTable.DirectoryEntries[i];
// compare this directory entry with every one that follows it
for (int j = i + 1; j < m_OffsetTable.DirectoryEntries.Count; j++)
{
DirectoryEntry de2 = (DirectoryEntry)m_OffsetTable.DirectoryEntries[j];
if ((uint)de1.tag > (uint)de2.tag)
{
v.Error(E._DE_E_TagsAscending, null);
bRet = false;
break;
}
}
if (bRet == false)
{
break;
}
}
if (bRet == true)
{
v.Pass(P._DE_P_TagsAscending, null);
}
}
return(bRet);
}
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;
}
private bool CheckCodePageBit(int nBit, uint CodePage, string sName, Validator v, OTFont fontOwner)
{
bool bRet = true;
int nTotalChars = 0;
int nMissingChars = 0;
// decode the bit number
bool bBitSet;
if (nBit < 32)
{
bBitSet = ((ulCodePageRange1 & (1<<nBit)) != 0);
}
else
{
bBitSet = ((ulCodePageRange2 & (1<<(nBit-32))) != 0);
}
if (nBit == 31)
{
// symbol character set
Table_cmap cmapTable = (Table_cmap)fontOwner.GetTable("cmap");
if (cmapTable != null)
{
if (cmapTable.GetEncodingTableEntry(3,0) != null)
{
if (!bBitSet)
{
v.Error(T.T_NULL, E.OS_2_E_SymbolBitClear, m_tag);
bRet = false;
}
}
else
{
if (bBitSet)
{
int nPresentChars = 0;
for (ushort c=0xf000; c<= 0xf0ff; c++)
{
if (fontOwner.FastMapUnicodeToGlyphID((char)c) != 0)
{
nPresentChars++;
}
}
if (nPresentChars == 0)
{
v.Error(T.T_NULL, E.OS_2_E_SymbolBitSet, m_tag);
bRet = false;
}
}
}
}
else
{
v.Error(T.T_NULL, E._TEST_E_TableMissing, m_tag, "cmap");
bRet = false;
}
}
else if (CodePage == 0)
{
// reserved field, bit should not be set
if (bBitSet)
{
v.Error(T.T_NULL, E.OS_2_E_ReservedBitSet_CodePage, m_tag, "bit #" + nBit);
bRet = false;
}
}
else
{
try
{
if (MultiByte.IsCodePageInstalled(CodePage))
{
ushort [] arrMissingChars = new ushort[10];
uint nMaxCharSize = MultiByte.GetCodePageMaxCharSize(CodePage);
if (nMaxCharSize == 1)
{
for (ushort c = 0; c<256; c++)
{
// check for special case: MultiByteToWideChar maps char 0xca in CP1255 to U05BA, but CP1255 spec says its not defined
if (CodePage != 1255 || c != 0xca)
{
CheckCodePageGlyph(CodePage, (char)c, ref nTotalChars, ref nMissingChars, arrMissingChars, fontOwner);
}
}
}
else if (nMaxCharSize == 2)
{
bool [] LeadByteMap = new bool[256];
for (int i=0; i<256; i++)
{
LeadByteMap[i] = MultiByte.IsCodePageLeadByte(CodePage, (byte)i);
}
for (ushort c = 0; c<256; c++)
{
if (LeadByteMap[c] == false)
{
CheckCodePageGlyph(CodePage, (char)c, ref nTotalChars, ref nMissingChars, arrMissingChars, fontOwner);
}
}
for (uint leadbyte = 0; leadbyte<256; leadbyte++)
{
if (LeadByteMap[leadbyte] == true)
{
for (uint secondbyte = 0; secondbyte<256; secondbyte++)
{
char c = (char)((leadbyte << 8) + secondbyte);
CheckCodePageGlyph(CodePage, c, ref nTotalChars, ref nMissingChars, arrMissingChars, fontOwner);
}
}
}
}
else
{
Debug.Assert(false);
}
if (bBitSet)
{
if (nMissingChars != 0)
{
string sDetails = "bit #" + nBit + ", " + sName;
int n = 0;
if (nMissingChars <=10)
{
sDetails += " (missing chars:";
n = nMissingChars;
}
else
{
sDetails += " (" + nMissingChars + " missing, first ten missing chars are:";
n = 10;
}
for (int i=0; i<n; i++)
{
sDetails += " U" + arrMissingChars[i].ToString("X4");
}
sDetails += ")";
v.Warning(T.T_NULL, W.OS_2_W_CodePageRangeBitSet, m_tag, sDetails);
}
}
else
{
if (nMissingChars == 0)
{
v.Warning(T.T_NULL, W.OS_2_W_CodePageRangeBitClear, m_tag, "bit #" + nBit + ", " + sName);
}
}
}
else
{
v.ApplicationError(T.T_NULL, E.OS_2_A_CodePageNotInstalled, m_tag, "CodePage " + CodePage + " is not installed on the system");
}
}
catch (Exception e)
{
v.ApplicationError(T.T_NULL, E.OS_2_A_CodePageNotInstalled, m_tag, "CodePage " + CodePage + " throws an exception:" + e.Message);
}
}
return bRet;
}
public bool Validate(Validator v, OTTable table, ushort numGlyphs,
String sIdentity)
{
bool bRet = true;
// warn if not encoding id 10
if (m_ete.encodingID != 10)
{
v.Warning(T.T_NULL, W.cmap_W_f12_EncID, table.m_tag,
sIdentity);
}
// check that groups are sorted by ascending startCharCodes
if (nGroups > 1)
{
for (uint i=0; i<nGroups-1; i++)
{
Group gCurr = GetGroup(i);
Group gNext = GetGroup(i+1);
if (gCurr.startCharCode >= gNext.startCharCode)
{
v.Error(T.T_NULL, E.cmap_E_f12_SortOrder,
table.m_tag, sIdentity);
bRet = false;
break;
}
}
}
// check each start code is less than or equal to the end code
for (uint i=0; i<nGroups; i++)
{
Group g = GetGroup(i);
if (g.startCharCode > g.endCharCode)
{
String sDetails = ", group[" + i +
"], startCharCode = 0x" +
g.startCharCode.ToString("X8") +
", endCharCode = 0x" + g.endCharCode.ToString("X8");
v.Error(T.T_NULL, E.cmap_E_f12_StartCode_GT_EndCode,
table.m_tag, sIdentity + sDetails);
bRet = false;
}
}
// check the mapping
for (uint i=0; i<nGroups; i++)
{
Group g = GetGroup(i);
uint c = g.endCharCode;
uint nGlyphID = g.startGlyphID + (c - g.startCharCode);
if (nGlyphID >= numGlyphs)
{
v.Error(T.T_NULL, E.cmap_E_Mapping, table.m_tag,
sIdentity + ", char = 0x" +
((uint)c).ToString("X4") + ", glyphID = " +
nGlyphID);
bRet = false;
}
}
// if encoding id 10, then check that the greatest character
// is not greater than 0x10ffff
if (m_ete.encodingID == 10)
{
if (nGroups > 0)
{
Group lastgroup = GetGroup(nGroups-1);
if (lastgroup.endCharCode > 0x10ffff)
{
v.Error(T.T_NULL, E.cmap_E_f12_EndCode_GT_10FFFF,
table.m_tag, sIdentity +
", last endCharCode = 0x" +
lastgroup.endCharCode.ToString("X8"));
bRet = false;
}
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check that ClassRangeRecord array doesn't extend past end of table
if (m_offsetClassDefFormat2 + (uint)FieldOffsets.ClassRangeRecordArray + ClassRangeCount*6 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ClassDefinitionTable_E_RangeRecordArrayPastEOT, table.m_tag, sIdentity);
bRet = false;
}
// check that ClassRangeRecord array is in sorted order
if (ClassRangeCount > 1)
{
for (uint i=0; i<ClassRangeCount-1; i++)
{
ClassRangeRecord ThisCrr = GetClassRangeRecord(i);
ClassRangeRecord NextCrr = GetClassRangeRecord(i+1);
if (ThisCrr.Start >= NextCrr.Start)
{
v.Error(T.T_NULL, E._OTL_ClassDefinitionTable_E_RangeRecordArray_order, table.m_tag, sIdentity);
bRet = false;
// temporary debug code
/*
v.DebugMsg("ClassRangeCount = " + ClassRangeCount, tag);
for (uint j=0; j<ClassRangeCount; j++)
{
ClassRangeRecord crr = GetClassRangeRecord(j);
v.DebugMsg("ClassRangeRecord[" + j + "].Start = " + crr.Start, tag);
}
*/
break;
}
}
}
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;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check StartSize for unreasonable values
if (StartSize > 16384)
{
v.Warning(T.T_NULL, W._OTL_DeviceTable_W_StartSize, table.m_tag, sIdentity + ", StartSize = " + StartSize);
}
// check EndSize for unreasonable values
if (EndSize > 16384)
{
v.Warning(T.T_NULL, W._OTL_DeviceTable_W_EndSize, table.m_tag, sIdentity + ", EndSize = " + EndSize);
}
// check that StartSize <= EndSize
if (StartSize > EndSize)
{
v.Error(T.T_NULL, E._OTL_DeviceTable_E_sizes, table.m_tag, sIdentity);
bRet = false;
}
// check DeltaFormat is 1, 2, or 3
if (DeltaFormat < 1 || DeltaFormat > 3)
{
v.Error(T.T_NULL, E._OTL_DeviceTable_E_DeltaFormat, table.m_tag, sIdentity + ", DeltaFormat = " + DeltaFormat);
bRet = false;
}
else
{
// check that DeltaValue array doesn't extend past the end of the table
int nSizes = EndSize - StartSize + 1;
int nValuesPerUint = 16 >> DeltaFormat;
int nUints = nSizes / nValuesPerUint;
if (nSizes % nValuesPerUint != 0) nUints++;
if (m_offsetDeviceTable + (uint)FieldOffsets.DeltaValueArray + nUints > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_DeviceTable_E_DeltaValueArray_pastEOT, table.m_tag, sIdentity);
bRet = false;
}
}
// way too many device tables to justify this pass message
//if (bRet)
//{
// v.Pass("_OTL_DeviceTable_P_valid", table.m_tag, sIdentity);
//}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
if (m_offsetClassDefFormat1 + (uint)FieldOffsets.ClassValueArray + GlyphCount*2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ClassDefinitionTable_E_GlyphArrayPastEOT, table.m_tag, sIdentity);
bRet = false;
}
return bRet;
}
public bool Validate(Validator v, OTTable table, ushort numGlyphs,
String sIdentity)
{
bool bRet = true;
// check that segCountX2 is even
if ((segCountX2 & 1) == 1)
{
v.Error(T.T_NULL, E.cmap_E_f4_segCountX2, table.m_tag,
sIdentity + ", segCountX2 = " + segCountX2);
bRet = false;
}
// check searchRange
ushort segCount = (ushort)(segCountX2 / 2);
ushort CalculatedSearchRange =
(ushort)(2 * util.MaxPower2LE(segCount));
if (searchRange != CalculatedSearchRange)
{
v.Error(T.T_NULL, E.cmap_E_f4_searchRange, table.m_tag,
sIdentity + ", searchRange = " + searchRange +
", calc = " + CalculatedSearchRange);
bRet = false;
}
// check entrySelector
ushort CalculatedEntrySelector =
util.Log2((ushort)(CalculatedSearchRange/2));
if (entrySelector != CalculatedEntrySelector)
{
v.Error(T.T_NULL, E.cmap_E_f4_entrySelector, table.m_tag,
sIdentity + ", entrySelector = " + entrySelector +
", calc = " + CalculatedEntrySelector);
bRet = false;
}
// check rangeShift
ushort CalculatedRangeShift =
(ushort)(2 * segCount - CalculatedSearchRange);
if (rangeShift != CalculatedRangeShift)
{
v.Error(T.T_NULL, E.cmap_E_f4_rangeShift, table.m_tag,
sIdentity + ", rangeShift = " + rangeShift +
", calc = " + CalculatedRangeShift);
bRet = false;
}
// check that final endCode value is 0xffff
if (GetEndCode((uint)segCount-1) != 0xffff)
{
v.Error(T.T_NULL, E.cmap_E_f4_FinalEndCode, table.m_tag,
sIdentity + ", endCode[" + (segCount-1) + "] = " +
GetEndCode((uint)segCount-1));
bRet = false;
}
// check that end character codes are in ascending order
if (segCount > 1)
{
for (uint i=0; i<segCount-1; i++)
{
if (GetEndCode(i) >= GetEndCode(i+1))
{
v.Error(T.T_NULL, E.cmap_E_f4_EndCodeOrder,
table.m_tag, sIdentity);
bRet = false;
break;
}
}
}
// check that the reservedPad is zero
if ( m_ete.offset + (uint)FieldOffsets.endCode + segCountX2
< m_bufTable.GetLength()
&& reservedPad != 0)
{
v.Error(T.T_NULL, E.cmap_E_f4_reservedPad, table.m_tag,
sIdentity);
bRet = false;
}
// check that each start character code is not greater than
// the corresponding end character code
for (uint i=0; i<segCount; i++)
{
if (GetStartCode(i) > GetEndCode(i))
{
String sDetails = ", startCode[" + i + "] = " +
GetStartCode(i) + " , endCode[" + i + "] = " +
GetEndCode(i);
v.Error(T.T_NULL, E.cmap_E_f4_StartCode_GT_EndCode,
table.m_tag, sIdentity + sDetails);
bRet = false;
}
}
// check that each delta value (where idRangeOffset == 0)
// added to the start code is not negative
for (uint i=0; i<segCount; i++)
{
if (GetIdRangeOffset(i) == 0)
{
if (GetIdDelta(i) + GetStartCode(i) < 0)
{
String sDetails = ", idDelta[" + i + "] = " +
GetIdDelta(i) + ", startCode[" + i + "] = " +
GetStartCode(i);
v.Error(T.T_NULL, E.cmap_E_f4_idDeltaNeg,
table.m_tag, sIdentity + sDetails);
bRet = false;
}
}
}
// check range offsets
for (uint i=0; i<segCount; i++)
{
ushort idRangeOffset = GetIdRangeOffset(i);
ushort endCode = GetEndCode(i);
ushort startCode = GetStartCode(i);
if (idRangeOffset != 0)
{
uint AddressOfIdRangeOffset =
(uint)FieldOffsets.endCode + segCountX2*3u + 2 +
i*2;
uint obscureIndex = (uint)
(idRangeOffset + (endCode - startCode)*2 +
AddressOfIdRangeOffset);
if (obscureIndex > length)
{
v.Error(T.T_NULL, E.cmap_E_f4_idRangeOffset,
table.m_tag, sIdentity +
", idRangeOffset[" + i + "] = " +
idRangeOffset);
bRet = false;
}
}
}
// check that glyph ids are less than numGlyphs
for (uint i=0; i<segCount; i++)
{
int nGlyphMappingErrors = 0;
// Report the first 10 errors and
// a count of errors after that.
int nMaxMappingErrors = 10;
ushort idRangeOffset = GetIdRangeOffset(i);
ushort endCode = GetEndCode(i);
ushort startCode = GetStartCode(i);
short idDelta = GetIdDelta(i);
ushort nGlyph;
for (uint j=startCode; j<= endCode; j++)
{
ushort c = (ushort)j;
nGlyph = 0;
if (idRangeOffset == 0)
{
nGlyph = (ushort)(c + idDelta);
}
else
{
uint AddressOfIdRangeOffset = (uint)
FieldOffsets.endCode + segCountX2*3u + 2 + i*2;
uint obscureIndex = (uint)
(idRangeOffset + (c-startCode)*2 +
AddressOfIdRangeOffset);
// throw out invalid indexes for this test
// (they should have already been reported)
if (obscureIndex < length &&
(m_ete.offset + obscureIndex <
m_bufTable.GetLength()))
{
nGlyph =
m_bufTable.GetUshort(m_ete.offset +
obscureIndex);
}
if (nGlyph !=0 )
{
nGlyph = (ushort)(nGlyph + idDelta);
}
}
if (nGlyph > numGlyphs)
{
// it is possible that an entire segment is bad.
// That causes a hang like behavior and a
// bloated error file
// that cannot be opened because it is so huge.
if (nGlyphMappingErrors < nMaxMappingErrors)
{
v.Error(T.T_NULL, E.cmap_E_Mapping,
table.m_tag,
sIdentity + ", char = 0x" +
c.ToString("X4") + ", glyphID = " +
nGlyph);
}
nGlyphMappingErrors++;
}
}
if (nGlyphMappingErrors >= nMaxMappingErrors)
{
string sDetails = sIdentity + ", segment = " + i +
" has " + nGlyphMappingErrors +
" glyphs mapped out of range";
v.Error(T.T_NULL, E.cmap_E_Mapping, table.m_tag,
sDetails);
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bool bScriptTableOk = true;
// check the DefaultLangSys offset
if (DefaultLangSysOffset != 0)
{
if (m_offsetScriptTable + DefaultLangSysOffset > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ScriptTable_E_DefaultLangSysOffset, table.m_tag, sIdentity);
bScriptTableOk = false;
bRet = false;
}
else
{
// check the DefaultLangSys table
LangSysTable_val lst = GetDefaultLangSysTable_val();
bRet &= lst.Validate(v, sIdentity + ", DefaultLangSysTable", table);
}
}
// check the LansgSysRecord array length
if (m_offsetScriptTable + (uint)FieldOffsets.LangSysRecord + LangSysCount * 6 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ScriptTable_E_LangSysRecordArray_pastEOT, table.m_tag, sIdentity);
bScriptTableOk = false;
bRet = false;
}
// check that the LangSysRecord array is sorted alphabetically
if (LangSysCount > 1)
{
for (uint i=0; i<LangSysCount-1; i++)
{
LangSysRecord ThisLsr = GetLangSysRecord(i);
LangSysRecord NextLsr = GetLangSysRecord(i+1);
if (ThisLsr.LangSysTag >= NextLsr.LangSysTag)
{
v.Error(T.T_NULL, E._OTL_ScriptTable_E_LangSysRecordArray_order, table.m_tag, sIdentity);
bScriptTableOk = false;
bRet = false;
}
}
}
// check each LangSysRecord
for (uint i=0; i<LangSysCount; i++)
{
LangSysRecord lsr = GetLangSysRecord(i);
// check the tag
if (!lsr.LangSysTag.IsValid())
{
v.Error(T.T_NULL, E._OTL_ScriptTable_E_LangSysRecord_tag, table.m_tag, sIdentity + ", LangSysRecord[" + i + "]");
bScriptTableOk = false;
bRet = false;
}
// check the offset
if (m_offsetScriptTable + lsr.LangSysOffset > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ScriptTable_E_LangSysRecord_offset, table.m_tag, sIdentity + ", LangSysRecord[" + i + "]");
bScriptTableOk = false;
bRet = false;
}
// validate the langsys table
LangSysTable_val lst = GetLangSysTable_val(lsr);
bRet &= lst.Validate(v, sIdentity + ", LangSysRecord[" + i + "], LangSysTable", table);
}
if (bScriptTableOk)
{
v.Pass(T.T_NULL, P._OTL_ScriptTable_P_valid, table.m_tag, sIdentity);
}
return bRet;
}
public bool Validate(Validator v, OTTable table, ushort numGlyphs,
String sIdentity)
{
bool bRet = true;
// check the length
if (length != 262)
{
v.Error(T.T_NULL, E.cmap_E_f0_length, table.m_tag,
sIdentity);
bRet = false;
}
// check the mapping
for (char c = (char)0; c<256; c++)
{
ushort nGlyphID = GetGlyphID(c);
if (nGlyphID >= numGlyphs)
{
v.Error(T.T_NULL, E.cmap_E_Mapping, table.m_tag,
sIdentity + ", char = 0x" +
((uint)c).ToString("X4") + ", glyphID = " +
nGlyphID);
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bool bFeatureListOk = true;
// check the FeatureRecord array length
if (m_offsetFeatureListTable + (uint)FieldOffsets.FeatureRecordArray + FeatureCount*6 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_FeatureListTable_E_FeatureRecordArray_pastEOT, table.m_tag, sIdentity);
bFeatureListOk = false;
bRet = false;
}
// check that the FeatureRecord array is sorted alphabetically
if (FeatureCount > 1)
{
for (uint i=0; i<FeatureCount-1; i++)
{
FeatureRecord frCurr = GetFeatureRecord(i);
FeatureRecord frNext = GetFeatureRecord(i+1);
if (frCurr.FeatureTag > frNext.FeatureTag)
{
v.Error(T.T_NULL, E._OTL_FeatureListTable_E_FeatureRecordArray_order, table.m_tag, sIdentity);
bFeatureListOk = false;
bRet = false;
break;
}
}
}
// check each FeatureRecord
for (uint i=0; i<FeatureCount; i++)
{
FeatureRecord fr = GetFeatureRecord(i);
if (fr != null)
{
// check tag
if (!fr.FeatureTag.IsValid())
{
v.Error(T.T_NULL, E._OTL_FeatureListTable_E_FeatureRecord_tag, table.m_tag, sIdentity + ", FeatureRecord[" + i + "]");
bFeatureListOk = false;
bRet = false;
}
else if (!IsKnownFeatureTag(fr.FeatureTag))
{
v.Warning(T.T_NULL, W._OTL_FeatureListTable_W_FeatureRecord_tag, table.m_tag, sIdentity + ", FeatureRecord[" + i + "], tag = '" + fr.FeatureTag + "'");
}
// check offset
if (m_offsetFeatureListTable + fr.FeatureTableOffset > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_FeatureListTable_E_FeatureRecord_offset, table.m_tag, sIdentity + ", FeatureRecord[" + i + "]");
bFeatureListOk = false;
bRet = false;
}
else
{
// validate the feature table
FeatureTable_val ft = GetFeatureTable_val(fr);
bRet &= ft.Validate(v, sIdentity + ", FeatureRecord[" + i + "]" + "(" + (string)fr.FeatureTag + ")" + ", FeatureTable", table);
}
}
else
{
bFeatureListOk = false;
bRet = false;
}
}
if (bFeatureListOk)
{
v.Pass(T.T_NULL, P._OTL_FeatureListTable_P_valid, table.m_tag, sIdentity);
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check that FeatureParams is null
if (FeatureParams != 0)
{
v.Error(T.T_NULL, E._OTL_FeatureTable_E_FeatureParams_nonnull, table.m_tag, sIdentity);
bRet = false;
}
// check LookupListIndex array length
if (m_offsetFeatureTable + (uint)FieldOffsets.LookupListIndexArray + LookupCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_FeatureTable_E_LookupListIndexArray_pastEOT, table.m_tag, sIdentity);
bRet = false;
}
if (bRet)
{
v.Pass(T.T_NULL, P._OTL_FeatureTable_P_valid, table.m_tag, sIdentity);
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bool bLookupListOk = true;
// check that the Lookup array doesn't extend past end of table
if (m_offsetLookupListTable + (uint)FieldOffsets.LookupArray + LookupCount * 2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_LookupListTable_E_LookupArray_pastEOT, table.m_tag, sIdentity);
bLookupListOk = false;
bRet = false;
}
// check that each offset is within the table
for (uint i=0; i<LookupCount; i++)
{
if (m_offsetLookupListTable + GetLookupOffset(i) > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_LookupListTable_E_Lookup_offset, table.m_tag, sIdentity + ", Lookup[" + i + "]");
bLookupListOk = false;
bRet = false;
}
}
// validate each lookup table
for (uint i=0; i<LookupCount; i++)
{
LookupTable_val lt = GetLookupTable_val(i);
if (lt != null)
{
bRet &= lt.Validate(v, sIdentity + ", Lookup[" + i + "]", table);
}
else
{
bLookupListOk = false;
bRet = false;
}
}
if (bLookupListOk)
{
v.Pass(T.T_NULL, P._OTL_LookupListTable_P_valid, table.m_tag, sIdentity);
}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.head_TableLength))
{
if (m_bufTable.GetLength() == 54)
{
v.Pass(T.head_TableLength, P.head_P_TableLength, m_tag);
}
else
{
v.Error(T.head_TableLength, E.head_E_TableLength, m_tag, m_bufTable.GetLength().ToString());
bRet = false;
}
}
if (v.PerformTest(T.head_TableVersion))
{
if (TableVersionNumber.GetUint() == 0x00010000)
{
v.Pass(T.head_TableVersion, P.head_P_TableVersion, m_tag);
}
else
{
v.Error(T.head_TableVersion, E.head_E_TableVersion, m_tag, "0x"+TableVersionNumber.GetUint().ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.head_fontRevision))
{
string sVersion = fontOwner.GetFontVersion();
if (sVersion != null)
{
if (sVersion.Length >= 11
&& sVersion.StartsWith("Version ")
&& Char.IsDigit(sVersion, 8))
{
string sVersionNum = sVersion.Substring(8);
bool bFoundDecPt = false;
int nLastDigitPos = 0;
for (int i=0; i<sVersionNum.Length; i++)
{
if (Char.IsDigit(sVersionNum, i))
{
nLastDigitPos = i;
}
else if (sVersionNum[i] == '.')
{
if (!bFoundDecPt)
{
bFoundDecPt = true;
}
else
{
break;
}
}
else
{
break;
}
}
double fVersion = Double.Parse(sVersionNum.Substring(0, nLastDigitPos+1));
double fRevision = fontRevision.GetDouble();
if (Math.Round(fVersion, 3) == Math.Round(fRevision, 3))
{
v.Pass(T.head_fontRevision, P.head_P_fontRevision, m_tag, fRevision.ToString("f3"));
}
else
{
string s = "revision: " + fRevision.ToString("f3") + ", version: " + sVersionNum;
v.Warning(T.head_fontRevision, W.head_W_fontRevision, m_tag, s);
}
}
}
}
if (v.PerformTest(T.head_ChecksumAdjustment))
{
if (checkSumAdjustment == 0xb1b0afba - fontOwner.CalcChecksum())
{
v.Pass(T.head_ChecksumAdjustment, P.head_P_FontChecksum, m_tag, "0x"+checkSumAdjustment.ToString("x8"));
}
else
{
v.Error(T.head_ChecksumAdjustment, E.head_E_FontChecksum, m_tag, "0x"+checkSumAdjustment.ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.head_MagicNumber))
{
if (magicNumber == 0x5f0f3cf5)
{
v.Pass(T.head_MagicNumber, P.head_P_MagicNumber, m_tag);
}
else
{
v.Error(T.head_MagicNumber, E.head_E_MagicNumber, m_tag, "0x"+magicNumber.ToString("x8"));
bRet = false;
}
}
if (v.PerformTest(T.head_FlagTests))
{
ushort val = flags;
// bit 0 indicates baseline for font at y=0
// bit 1 indicates left sidebearing point at x=0
// bit 2 indicates instructions may depend on point size
// bit 3 indicates forcing ppem to integer values instead of fractional values
// bit 4 indicates non-linear scaling - if set allows presence of LTSH and/or hdmx tables
Table_hdmx hdmxTable = (Table_hdmx)fontOwner.GetTable("hdmx");
Table_LTSH LTSHTable = (Table_LTSH)fontOwner.GetTable("LTSH");
if ((val & 0x0010) == 0)
{
if (hdmxTable == null)
{
v.Pass(T.head_FlagTests, P.head_P_flags_bit4_0_hdmx, m_tag);
}
else
{
v.Error(T.head_FlagTests, E.head_E_flags_bit4_0_hdmx, m_tag);
}
if (LTSHTable == null)
{
v.Pass(T.head_FlagTests, P.head_P_flags_bit4_0_LTSH, m_tag);
}
else
{
v.Error(T.head_FlagTests, E.head_E_flags_bit4_0_LTSH, m_tag);
}
}
else
{
if (hdmxTable != null)
{
v.Pass(T.head_FlagTests, P.head_P_flags_bit4_1_hdmx, m_tag);
}
else
{
v.Warning(T.head_FlagTests, W.head_W_flags_bit4_1_hdmx, m_tag);
}
if (LTSHTable != null)
{
v.Pass(T.head_FlagTests, P.head_P_flags_bit4_1_LTSH, m_tag);
}
else
{
v.Warning(T.head_FlagTests, W.head_W_flags_bit4_1_LTSH, m_tag);
}
}
// bits 5 - 10 are used by apple and ignored by windows
// bit 11 indicates font data is 'lossless' as a result of having been compressed/decompressed
// bit 12 indicates a converted font
// bit 13 indicates optimized for cleartype
// bit 14 reserved
if ((val & 0x4000) == 0)
{
v.Pass(T.head_FlagTests, P.head_P_flags_bit14, m_tag);
}
else
{
v.Error(T.head_FlagTests, E.head_E_flags_bit14, m_tag, val.ToString());
bRet = false;
}
// bit 15 reserved
if ((val & 0x8000) == 0)
{
v.Pass(T.head_FlagTests, P.head_P_flags_bit15, m_tag);
}
else
{
v.Error(T.head_FlagTests, E.head_E_flags_bit15, m_tag, val.ToString());
bRet = false;
}
}
if (v.PerformTest(T.head_UnitsPerEmValues))
{
ushort val = unitsPerEm;
bool bInRange = false;
if (val < 16) // opentype spec says min value is 16
{
v.Error(T.head_UnitsPerEmValues, E.head_E_unitsPerEm_LT16, m_tag, val.ToString());
bRet = false;
}
else if (val < 64) // apple spec says min value is 64
{
v.Warning(T.head_UnitsPerEmValues, W.head_W_unitsPerEM_LT64, m_tag, val.ToString());
}
else if (val > 16384)
{
v.Error(T.head_UnitsPerEmValues, E.head_E_unitsPerEM_GT16384, m_tag, val.ToString());
bRet = false;
}
else
{
bInRange = true;
}
// apple spec says unitsPerEm must be power of two
// but don't check if it's a CFF font
if (!fontOwner.ContainsPostScriptOutlines())
{
bool bPowerOfTwo = false;
for (int i=0; i<16; i++)
{
ushort nPow2 = (ushort)(1<<i);
if (val == nPow2)
{
bPowerOfTwo = true;
break;
}
}
if (bPowerOfTwo)
{
if (bInRange)
{
v.Pass(T.head_UnitsPerEmValues, P.head_P_unitsPerEm, m_tag, val.ToString());
}
}
else
{
v.Warning(T.head_UnitsPerEmValues, W.head_W_unitsPerEm_Pow2, m_tag, val.ToString());
}
}
}
if (v.PerformTest(T.head_Dates))
{
DateTime dtBeforeTrueType = new DateTime(1985, 1, 1);
if ((created >> 32) == 0)
{
DateTime dtCreated = this.GetCreatedDateTime();
if (created == 0)
{
v.Warning(T.head_Dates, W.head_W_created_0, m_tag);
}
else if (dtCreated < dtBeforeTrueType || dtCreated > DateTime.Now)
{
string sDetails = "created = " + created + " (" + dtCreated.ToString("f", null) + ")";
v.Warning(T.head_Dates, W.head_W_created_unlikely, m_tag, sDetails);
}
else
{
v.Pass(T.head_Dates, P.head_P_created_0, m_tag);
}
}
else
{
string sDetails = "created = 0x" + created.ToString("x16");
v.Error(T.head_Dates, E.head_E_created_invalid, m_tag, sDetails);
bRet = false;
}
if ((modified >> 32) == 0)
{
DateTime dtModified = this.GetModifiedDateTime();
if (modified == 0)
{
v.Warning(T.head_Dates, W.head_W_modified_0, m_tag);
}
else if (dtModified < dtBeforeTrueType || dtModified > DateTime.Now)
{
string sDetails = "modified = " + modified + " (" + dtModified.ToString("f", null) + ")";
v.Warning(T.head_Dates, W.head_W_modified_unlikely, m_tag, sDetails);
}
else
{
v.Pass(T.head_Dates, P.head_P_modified_0, m_tag);
}
}
else
{
string sDetails = "modified = 0x" + modified.ToString("x16");
v.Error(T.head_Dates, E.head_E_modified_invalid, m_tag, sDetails);
bRet = false;
}
}
if (v.PerformTest(T.head_MinMaxValues))
{
if (fontOwner.ContainsTrueTypeOutlines())
{
if (xMin > xMax)
{
v.Error(T.head_MinMaxValues, E.head_E_xMin_GT_xMax, m_tag);
bRet = false;
}
if (yMin > yMax)
{
v.Error(T.head_MinMaxValues, E.head_E_yMin_GT_yMax, m_tag);
bRet = false;
}
short xMinExpected = 32767;
short xMaxExpected = -32768;
short yMinExpected = 32767;
short yMaxExpected = -32768;
Table_glyf glyfTable = (Table_glyf)fontOwner.GetTable("glyf");
if (glyfTable != null)
{
Table_maxp maxp = (Table_maxp)fontOwner.GetTable("maxp");
if (maxp != null)
{
for (uint i=0; i<fontOwner.GetMaxpNumGlyphs(); i++)
{
Table_glyf.header h = glyfTable.GetGlyphHeader(i, fontOwner);
if (h != null)
{
if (xMinExpected > h.xMin) xMinExpected = h.xMin;
if (xMaxExpected < h.xMax) xMaxExpected = h.xMax;
if (yMinExpected > h.yMin) yMinExpected = h.yMin;
if (yMaxExpected < h.yMax) yMaxExpected = h.yMax;
}
}
if (xMin == xMinExpected)
{
String s = "xMin = " + xMin;
v.Pass(T.head_MinMaxValues, P.head_P_xMin_glyf, m_tag, s);
}
else
{
string s = "actual: " + xMin + ", expected: " + xMinExpected;
v.Error(T.head_MinMaxValues, E.head_E_xMin_glyf, m_tag, s);
bRet = false;
}
if (yMin == yMinExpected)
{
String s = "yMin = " + yMin;
v.Pass(T.head_MinMaxValues, P.head_P_yMin_glyf, m_tag, s);
}
else
{
string s = "actual: " + yMin + ", expected: " + yMinExpected;
v.Error(T.head_MinMaxValues, E.head_E_yMin_glyf, m_tag, s);
bRet = false;
}
if (xMax == xMaxExpected)
{
String s = "xMax = " + xMax;
v.Pass(T.head_MinMaxValues, P.head_P_xMax_glyf, m_tag, s);
}
else
{
string s = "actual: " + xMax + ", expected: " + xMaxExpected;
v.Error(T.head_MinMaxValues, E.head_E_xMax_glyf, m_tag, s);
bRet = false;
}
if (yMax == yMaxExpected)
{
String s = "yMax = " + yMax;
v.Pass(T.head_MinMaxValues, P.head_P_yMax_glyf, m_tag, s);
}
else
{
string s = "actual: " + yMax + ", expected: " + yMaxExpected;
v.Error(T.head_MinMaxValues, E.head_E_yMax_glyf, m_tag, s);
bRet = false;
}
}
else
{
v.Error(T.head_MinMaxValues, E._TEST_E_TableMissing, m_tag, "maxp");
}
}
else
{
v.Error(T.head_MinMaxValues, E._TEST_E_TableMissing, m_tag, "glyf");
}
}
else
{
v.Info(T.head_MinMaxValues, I._TEST_I_NotForCFF, m_tag, "test = head_MinMaxValues");
}
}
if (v.PerformTest(T.head_MacStyleBits))
{
bool bMacBold = ((macStyle & 0x0001) != 0);
bool bMacItal = ((macStyle & 0x0002) != 0);
// subfamily (style) string
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();
}
}
if (sStyleLower != null)
{
if (bMacBold && sStyleLower.IndexOf("bold") == -1)
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleBold_subfamily, m_tag, "macStyle bold bit is set, but subfamily is " + sStyle);
bRet = false;
}
else if (!bMacBold && sStyleLower.IndexOf("bold") != -1)
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleBold_subfamily, m_tag, "macStyle bold bit is clear, but subfamily is " + sStyle);
bRet = false;
}
else
{
v.Pass(T.head_MacStyleBits, P.head_P_macStyleBold_subfamily, m_tag);
}
if (bMacItal && sStyleLower.IndexOf("italic") == -1 && sStyleLower.IndexOf("oblique") == -1)
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleItal_subfamily, m_tag, "macStyle italic bit is set, but subfamily is " + sStyle);
bRet = false;
}
else if (!bMacItal && (sStyleLower.IndexOf("italic") != -1 || sStyleLower.IndexOf("oblique") != -1))
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleItal_subfamily, m_tag, "macStyle italic bit is clear, but subfamily is " + sStyle);
bRet = false;
}
else
{
v.Pass(T.head_MacStyleBits, P.head_P_macStyleItal_subfamily, m_tag);
}
}
Table_OS2 OS2Table = (Table_OS2)fontOwner.GetTable("OS/2");
if (OS2Table != null)
{
// fsSelection
bool bOS2Bold = ((OS2Table.fsSelection & 0x0020) != 0);
bool bOS2Ital = ((OS2Table.fsSelection & 0x0001) != 0);
if (bMacBold == bOS2Bold)
{
v.Pass(T.head_MacStyleBits, P.head_P_macStyleBold_OS2, m_tag);
}
else if (bMacBold)
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleBold1_OS2, m_tag);
bRet = false;
}
else
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleBold0_OS2, m_tag);
bRet = false;
}
if (bMacItal == bOS2Ital)
{
v.Pass(T.head_MacStyleBits, P.head_P_macStyleItal_OS2, m_tag);
}
else if (bMacItal)
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleItal1_OS2, m_tag);
bRet = false;
}
else
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleItal0_OS2, m_tag);
bRet = false;
}
}
Table_post postTable = (Table_post)fontOwner.GetTable("post");
if (postTable != null)
{
bool bPostItal = (postTable.italicAngle.GetUint() != 0);
if (bMacItal == bPostItal)
{
v.Pass(T.head_MacStyleBits, P.head_P_macStyleItal_post, m_tag);
}
else if (bMacItal)
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleItal1_post, m_tag);
bRet = false;
}
else
{
v.Error(T.head_MacStyleBits, E.head_E_macStyleItal0_post, m_tag);
bRet = false;
}
}
}
if (v.PerformTest(T.head_LowestRecSize))
{
if (lowestRecPPEM == 0)
{
v.Error(T.head_LowestRecSize, E.head_E_lowestRecPPEM_zero, m_tag);
bRet = false;
}
else if (lowestRecPPEM >= 1 && lowestRecPPEM <= 6)
{
v.Warning(T.head_LowestRecSize, W.head_W_lowestRecPPEM_small, m_tag, "lowestRecPPEM = " + lowestRecPPEM.ToString());
}
else if (lowestRecPPEM >= 36)
{
v.Warning(T.head_LowestRecSize, W.head_W_lowestRecPPEM_large, m_tag, "lowestRecPPEM = " + lowestRecPPEM.ToString());
}
else
{
v.Pass(T.head_LowestRecSize, P.head_P_lowestRecPPEM, m_tag);
}
}
if (v.PerformTest(T.head_FontDirectionHint))
{
if (fontDirectionHint >= -2 && fontDirectionHint <= 2)
{
v.Pass(T.head_FontDirectionHint, P.head_P_fontDirectionHint, m_tag, fontDirectionHint.ToString());
}
else
{
v.Error(T.head_FontDirectionHint, E.head_E_fontDirectionHint, m_tag, fontDirectionHint.ToString());
bRet = false;
}
}
if (v.PerformTest(T.head_IndexToLocFormat))
{
if (fontOwner.ContainsPostScriptOutlines())
{
v.Pass(T.head_IndexToLocFormat, P.head_P_indexToLocFormat_ignore, m_tag, "indexToLocFormat = " + indexToLocFormat);
}
else
{
if (indexToLocFormat == 0 || indexToLocFormat == 1)
{
v.Pass(T.head_IndexToLocFormat, P.head_P_indexToLocFormat_range, m_tag, indexToLocFormat.ToString());
}
else
{
v.Error(T.head_IndexToLocFormat, E.head_E_indexToLocFormat_range, m_tag, indexToLocFormat.ToString());
bRet = false;
}
if (indexToLocFormat == 0 || indexToLocFormat == 1)
{
Table_loca locaTable = (Table_loca)fontOwner.GetTable("loca");
if (locaTable != null)
{
Table_maxp maxpTable = (Table_maxp)fontOwner.GetTable("maxp");
if (maxpTable != null)
{
uint locaTableElementSize = 0;
if (indexToLocFormat == 0)
locaTableElementSize = 2;
else if (indexToLocFormat == 1)
locaTableElementSize = 4;
uint CalcLocaLength = (uint)(maxpTable.NumGlyphs + 1) * locaTableElementSize;
if (CalcLocaLength == locaTable.GetLength())
{
v.Pass(T.head_IndexToLocFormat, P.head_P_indexToLocFormat_match, m_tag, indexToLocFormat.ToString());
}
else
{
v.Error(T.head_IndexToLocFormat, E.head_E_indexToLocFormat_match, m_tag, indexToLocFormat.ToString());
bRet = false;
}
}
else
{
v.Error(T.head_IndexToLocFormat, E._TEST_E_TableMissing, m_tag, "maxp");
}
}
else
{
v.Error(T.head_IndexToLocFormat, E._TEST_E_TableMissing, m_tag, "loca");
}
}
}
}
if (v.PerformTest(T.head_GlyphDataFormat))
{
if (glyphDataFormat == 0)
{
v.Pass(T.head_GlyphDataFormat, P.head_P_glyphDataFormat, m_tag);
}
else
{
v.Error(T.head_GlyphDataFormat, E.head_E_glyphDataFormat, m_tag);
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, OTTable table, ushort numGlyphs,
String sIdentity)
{
bool bRet = true;
// check the mapping
byte [] charbuf = new byte[2];
for (uint i = 0; i<=65535; i++)
{
char c = (char)i;
charbuf[0] = (byte)c;
charbuf[1] = (byte)(c>>8);
uint nGlyphID = MapCharToGlyph(charbuf, 0);
if (nGlyphID >= numGlyphs)
{
v.Error(T.T_NULL, E.cmap_E_Mapping, table.m_tag,
sIdentity + ", char = 0x" +
((uint)c).ToString("X4") + ", glyphID = " +
nGlyphID);
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
if (LookupOrder != 0)
{
v.Error(T.T_NULL, E._OTL_LangSysTable_E_LookupOrder, table.m_tag, sIdentity);
bRet = false;
}
if (m_offsetLangSysTable + (uint)FieldOffsets.FeatureIndexArray + FeatureCount*2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_LangSysTable_E_FeatureIndexArray_pastEOT, table.m_tag, sIdentity);
bRet = false;
}
if (bRet)
{
v.Pass(T.T_NULL, P._OTL_LangSysTable_P_valid, table.m_tag, sIdentity);
}
return bRet;
}
bool VerifyUnicodeRanges( Validator v,
uint ulUnicodeRange,
uint ulUnicodeRangeBit,
uint nCharsInRange,
string sRangeNames)
{
bool bRet = true;
if(nCharsInRange != 0)
{
if((ulUnicodeRange & ulUnicodeRangeBit) == 0)
{
v.Info(T.T_NULL, I.OS_2_I_RangeBitNotSet, m_tag, nCharsInRange + " characters are present in the ranges: " + sRangeNames);
}
}
else
{
if((ulUnicodeRange & ulUnicodeRangeBit) != 0)
{
v.Error(T.T_NULL, E.OS_2_E_RangeBitSet, m_tag, "No characters are present in the ranges: " + sRangeNames);
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bool bScriptListOk = true;
// check that ScriptRecord array doesn't extend past end of table
if (m_offsetScriptListTable + (uint)FieldOffsets.ScriptRecords + 6*ScriptCount > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ScriptListTable_E_ScriptRecordArray_pastEOT, table.m_tag, sIdentity);
bScriptListOk = false;
bRet = false;
}
// check that ScriptRecord array is in alphabetical order
if (ScriptCount > 1)
{
for (uint i=0; i<ScriptCount-1; i++)
{
ScriptRecord srCurr = GetScriptRecord(i);
ScriptRecord srNext = GetScriptRecord(i+1);
if (srCurr.ScriptTag >= srNext.ScriptTag)
{
v.Error(T.T_NULL, E._OTL_ScriptListTable_E_ScriptRecordArray_order, table.m_tag, sIdentity);
bScriptListOk = false;
bRet = false;
}
}
}
// check each ScriptRecord
for (uint i=0; i<ScriptCount; i++)
{
// check the tag
ScriptRecord sr = GetScriptRecord(i);
if (!sr.ScriptTag.IsValid())
{
v.Error(T.T_NULL, E._OTL_ScriptListTable_E_ScriptRecord_tag, table.m_tag, sIdentity + ", ScriptRecord[" + i + "]");
bScriptListOk = false;
bRet = false;
}
// check the offset
if (m_offsetScriptListTable + sr.ScriptTableOffset > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_ScriptListTable_E_ScriptRecord_offset, table.m_tag, sIdentity + ", ScriptRecord[" + i + "]");
bScriptListOk = false;
bRet = false;
}
// validate the ScriptTable
ScriptTable_val st = GetScriptTable_val(sr);
bRet &= st.Validate(v, sIdentity + ", ScriptRecord[" + i + "](" + sr.ScriptTag + "), ScriptTable", table);
}
if (bScriptListOk)
{
v.Pass(T.T_NULL, P._OTL_ScriptListTable_P_valid, table.m_tag, sIdentity);
}
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;
ushort numGlyphs = GetNumGlyphs(fontOwner);
if (v.PerformTest(T.hdmx_Version))
{
if (TableVersionNumber == 0)
{
v.Pass(T.hdmx_Version, P.hdmx_P_Version, m_tag);
}
else
{
v.Error(T.hdmx_Version, E.hdmx_E_Version, m_tag, TableVersionNumber.ToString());
bRet = false;
}
}
bool bNumDeviceRecordsOk = true;
if (v.PerformTest(T.hdmx_NumDeviceRecords))
{
if (NumberDeviceRecords >= 0)
{
v.Pass(T.hdmx_NumDeviceRecords, P.hdmx_P_NumDeviceRecords, m_tag, NumberDeviceRecords.ToString());
}
else
{
v.Error(T.hdmx_NumDeviceRecords, E.hdmx_E_NumDeviceRecords_neg, m_tag, NumberDeviceRecords.ToString());
bNumDeviceRecordsOk = false;
bRet = false;
}
}
bool bSizeOk = true;
if (v.PerformTest(T.hdmx_SizeofDeviceRecord))
{
if ((SizeofDeviceRecord & 3) != 0)
{
v.Error(T.hdmx_SizeofDeviceRecord, E.hdmx_E_SizeofDeviceRecord_alignment, m_tag, SizeofDeviceRecord.ToString());
bSizeOk = false;
bRet = false;
}
uint CalculatedSizeofDeviceRecord = CalculateSizeofDeviceRecord(numGlyphs);
if (SizeofDeviceRecord != CalculatedSizeofDeviceRecord)
{
string s = "actual = " + SizeofDeviceRecord + ", calc = " + CalculatedSizeofDeviceRecord;
v.Error(T.hdmx_SizeofDeviceRecord, E.hdmx_E_SizeofDeviceRecord_numGlyphs, m_tag, s);
bSizeOk = false;
bRet = false;
}
if (bSizeOk)
{
v.Pass(T.hdmx_SizeofDeviceRecord, P.hdmx_P_SizeofDeviceRecord, m_tag, SizeofDeviceRecord.ToString());
}
}
bool bLengthOk = true;
if (v.PerformTest(T.hdmx_TableLength))
{
if (bNumDeviceRecordsOk)
{
uint CalculatedTableLength = 8 + (uint)NumberDeviceRecords * CalculateSizeofDeviceRecord(numGlyphs);
if (GetLength() == CalculatedTableLength)
{
v.Pass(T.hdmx_TableLength, P.hdmx_P_TableLength, m_tag);
}
else
{
string s = "actual: " + GetLength() + ", calc: " + CalculatedTableLength;
v.Error(T.hdmx_TableLength, E.hdmx_E_TableLength, m_tag, s);
bLengthOk = false;
bRet = false;
}
}
else
{
v.Warning(T.hdmx_TableLength, W._TEST_W_OtherErrorsInTable, m_tag, "unable to validate table length");
}
}
if (v.PerformTest(T.hdmx_DeviceRecordPadBytesZero))
{
if (bSizeOk && bLengthOk & bNumDeviceRecordsOk)
{
uint unpaddedLength = (uint)numGlyphs + 2;
if ((unpaddedLength & 3) == 0)
{
v.Pass(T.hdmx_DeviceRecordPadBytesZero, P.hdmx_P_DeviceRecordPadBytes_none, m_tag);
}
else
{
bool bPadOk = true;
if (NumberDeviceRecords > 1)
{
for (uint i=0; i<NumberDeviceRecords; i++)
{
DeviceRecord dr = GetDeviceRecord(i, numGlyphs);
for (uint j=0; j<dr.GetNumPadBytes(); j++)
{
if (dr.GetPadByte(j) != 0)
{
bPadOk = false;
break;
}
}
}
}
if (bPadOk)
{
v.Pass(T.hdmx_DeviceRecordPadBytesZero, P.hdmx_P_DeviceRecordPadBytes_zero, m_tag);
}
else
{
v.Error(T.hdmx_DeviceRecordPadBytesZero, E.hdmx_E_DeviceRecordPadBytes_nonzero, m_tag);
bRet = false;
}
}
}
else
{
v.Warning(T.hdmx_DeviceRecordPadBytesZero, W._TEST_W_OtherErrorsInTable, m_tag, "unable to validate that device record padding bytes are zero");
}
}
if (v.PerformTest(T.hdmx_SortedOrder))
{
if (bSizeOk && bLengthOk && bNumDeviceRecordsOk)
{
bool bSortOk = true;
if (NumberDeviceRecords > 1)
{
DeviceRecord drCurr = GetDeviceRecord(0, numGlyphs);
DeviceRecord drNext = null;
for (uint i=1; i<NumberDeviceRecords; i++)
{
drNext = GetDeviceRecord(i, numGlyphs);
if (drCurr.PixelSize >= drNext.PixelSize)
{
bSortOk = false;
break;
}
drCurr = drNext;
}
}
if (bSortOk)
{
v.Pass(T.hdmx_SortedOrder, P.hdmx_P_SortedOrder, m_tag);
}
else
{
v.Error(T.hdmx_SortedOrder, E.hdmx_E_SortedOrder, m_tag);
bRet = false;
}
}
else
{
v.Warning(T.hdmx_SortedOrder, W._TEST_W_OtherErrorsInTable, m_tag, "unable to validate that device records are in sorted order");
}
}
if (v.PerformTest(T.hdmx_DuplicateDeviceRecords))
{
if (bSizeOk && bLengthOk && bNumDeviceRecordsOk)
{
bool bNoDup = true;
if (NumberDeviceRecords > 1)
{
for (uint i=0; i<NumberDeviceRecords-1; i++)
{
DeviceRecord dr1 = GetDeviceRecord(i, numGlyphs);
for (uint j=i+1; j<NumberDeviceRecords; j++)
{
DeviceRecord dr2 = GetDeviceRecord(j, numGlyphs);
if (dr1.PixelSize == dr2.PixelSize)
{
bNoDup = false;
break;
}
}
}
}
if (bNoDup)
{
v.Pass(T.hdmx_DuplicateDeviceRecords, P.hdmx_P_DuplicateDeviceRecords, m_tag);
}
else
{
v.Error(T.hdmx_DuplicateDeviceRecords, E.hdmx_E_DuplicateDeviceRecords, m_tag);
bRet = false;
}
}
else
{
v.Warning(T.hdmx_DuplicateDeviceRecords, W._TEST_W_OtherErrorsInTable, m_tag, "unable to validate that there are no duplicate device records");
}
}
if (v.PerformTest(T.hdmx_Widths))
{
if (bSizeOk && bLengthOk && bNumDeviceRecordsOk)
{
bool bWidthsOk = true;
RasterInterf.DevMetricsData dmd = null;
try
{
Version ver = fontOwner.GetFile().GetRasterizer().FTVersion;
if ( ver.CompareTo(new Version(2,6,1)) < 0 )
v.Warning(T.hdmx_Widths, W.hdmx_W_Need_Newer_FreeType, m_tag,
"Using FreeType Version " + ver + " may not get correct results for HDMX");
dmd = fontOwner.GetCalculatedDevMetrics();
}
catch (Exception e)
{
v.ApplicationError(T.hdmx_Widths, E._Table_E_Exception, m_tag, e.Message);
bRet = false;
}
if (dmd != null)
{
for (uint i=0; i<NumberDeviceRecords; i++)
{
DeviceRecord dr = GetDeviceRecord(i, numGlyphs);
for (uint iGlyph=0; iGlyph<numGlyphs; iGlyph++)
{
if (dr.GetWidth(iGlyph) != dmd.hdmxData.Records[i].Widths[iGlyph])
{
String sDetails = "rec " + i + ", PixelSize " + dr.PixelSize + ", glyph# " + iGlyph
+ ", width = " + dr.GetWidth(iGlyph) + ", calc = " + dmd.hdmxData.Records[i].Widths[iGlyph];
v.Error(T.hdmx_Widths, E.hdmx_E_Widths, m_tag, sDetails);
bWidthsOk = false;
bRet = false;
}
}
}
if (bWidthsOk)
{
v.Pass(T.hdmx_Widths, P.hdmx_P_Widths, m_tag);
}
}
else
{
// if user didn't cancel, then check for error message
if (!v.CancelFlag)
{
String sDetails = null;
try
{
sDetails = fontOwner.GetDevMetricsDataError();
}
catch (Exception e)
{
v.ApplicationError(T.hdmx_Widths, E._Table_E_Exception, m_tag, e.Message);
}
Debug.Assert(sDetails != null);
v.Error(T.hdmx_Widths, E.hdmx_E_Rasterizer, m_tag, sDetails);
bRet = false;
}
}
}
else
{
v.Warning(T.hdmx_Widths, W._TEST_W_OtherErrorsInTable, m_tag, "unable to validate that the widths are correct");
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
// check the LookupType
if (((string)table.m_tag == "GPOS") && LookupType > 9
|| ((string)table.m_tag == "GSUB" && LookupType > 8))
{
v.Error(T.T_NULL, E._OTL_LookupTable_E_LookupType, table.m_tag, sIdentity + ", LookupType = " + LookupType);
bRet = false;
}
// check LookupFlag reserved bits are clear
if ((LookupFlag & 0x00f0) != 0)
{
v.Error(T.T_NULL, E._OTL_LookupTable_E_LookupFlag_reserved, table.m_tag, sIdentity);
bRet = false;
}
// check Subtable offset array doesn't extend past end of table
if (m_offsetLookupTable + (uint)FieldOffsets.SubTableOffsetArray + SubTableCount*2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_LookupTable_E_SubtableArray_pastEOT, table.m_tag, sIdentity);
bRet = false;
}
// check Subtable offsets don't point past end of table
for (uint i=0; i<SubTableCount; i++)
{
// verify that the subtable offset is accessible, if not error was already reported
if (m_offsetLookupTable + (uint)FieldOffsets.SubTableOffsetArray + i*2 + 2 <= m_bufTable.GetLength())
{
if (m_offsetLookupTable + GetSubTableOffset(i) > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_LookupTable_E_SubtableArray_offset, table.m_tag, sIdentity + ", SubTable[" + i + "]");
bRet = false;
}
}
}
// way too many lookup tables to justify this pass message
//if (bRet)
//{
// v.Pass("_OTL_LookupTable_P_valid", table.m_tag, sIdentity);
//}
// validate each subtable
for (uint i=0; i<SubTableCount; i++)
{
// verify that the subtable offset is accessible, if not error was already reported
if (m_offsetLookupTable + (uint)FieldOffsets.SubTableOffsetArray + i*2 + 2 <= m_bufTable.GetLength())
{
// verify subtable offset is valid
if (m_offsetLookupTable + GetSubTableOffset(i) <= m_bufTable.GetLength())
{
SubTable st = GetSubTable(i);
if (st != null)
{
I_OTLValidate iv = (I_OTLValidate)st;
bRet &= iv.Validate(v, sIdentity + ", SubTable[" + i + "]", table);
}
else
{
v.Warning(T.T_NULL, W._TEST_W_OtherErrorsInTable, table.m_tag, "unable to validate subtable: " + sIdentity + ", SubTable[" + i + "]");
}
}
else
{
v.Warning(T.T_NULL, W._TEST_W_OtherErrorsInTable, table.m_tag, "unable to validate subtable: " + sIdentity + ", SubTable[" + i + "]");
}
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
if (ClassFormat == 1)
{
ClassDefFormat1_val cdf1 = GetClassDefFormat1_val();
bRet &= cdf1.Validate(v, sIdentity + "(Fmt1)", table);
}
else if (ClassFormat == 2)
{
ClassDefFormat2_val cdf2 = GetClassDefFormat2_val();
bRet &= cdf2.Validate(v, sIdentity + "(Fmt2)", table);
}
else
{
v.Error(T.T_NULL, E._OTL_ClassDefinitionTable_E_Format, table.m_tag, sIdentity + ", format = " + ClassFormat.ToString());
bRet = false;
}
// way too many ClassDefTables to justify this pass message
//if (bRet)
//{
// v.Pass("_OTL_ClassDefinitionTable_P_valid", table.m_tag, sIdentity);
//}
return bRet;
}
/************************
* public methods
*/
public bool Validate(Validator v, OTFontVal fontOwner)
{
bool bRet = true;
if (v.PerformTest(T.VDMX_Version))
{
if (version == 0 || version == 1)
{
v.Pass(T.VDMX_Version, P.VDMX_P_Version, m_tag, version.ToString());
}
else
{
v.Error(T.VDMX_Version, E.VDMX_E_Version, m_tag, version.ToString());
bRet = false;
}
}
if (v.PerformTest(T.VDMX_Offsets))
{
bool bOffsetsOk = true;
ushort minPossibleOffset = (ushort)((ushort)FieldOffsets.ratRange + numRatios * 4 + numRatios*2);
ushort maxPossibleOffset = (ushort)GetLength();
for (uint i=0; i<numRatios; i++)
{
ushort offset = GetVdmxGroupOffset(i);
if (offset < minPossibleOffset || offset > maxPossibleOffset)
{
v.Error(T.VDMX_Offsets, E.VDMX_E_InvalidOffset, m_tag, "#" + i + " offset = " + offset);
bOffsetsOk = false;
bRet = false;
}
}
if (bOffsetsOk)
{
v.Pass(T.VDMX_Offsets, P.VDMX_P_Offsets, m_tag);
}
}
if (v.PerformTest(T.VDMX_GroupsInTable))
{
bool bGroupsOk = true;
for (uint i=0; i<numRatios; i++)
{
Vdmx vdmx = GetVdmxGroup(i);
uint EndOffset = (uint)GetVdmxGroupOffset(i) + 4 + (uint)vdmx.recs*6;
if (EndOffset > GetLength())
{
v.Error(T.VDMX_GroupsInTable, E.VDMX_E_GroupsInTable, m_tag, "group# " + i);
bGroupsOk = false;
bRet = false;
}
}
if (bGroupsOk)
{
v.Pass(T.VDMX_GroupsInTable, P.VDMX_P_GroupsInTable, m_tag);
}
}
if (v.PerformTest(T.VDMX_CompareToCalcData))
{
bool bDataOk = true;
bool needtol = false;
RasterInterf.DevMetricsData dmd = null;
try
{
Version ver = fontOwner.GetFile().GetRasterizer().FTVersion;
if ( ver.CompareTo(new Version(2,6,1)) < 0 )
v.Warning(T.VDMX_CompareToCalcData, W.VDMX_W_Need_Newer_FreeType, m_tag,
"Using FreeType Version " + ver + " may not get correct results for VDMX");
dmd = fontOwner.GetCalculatedDevMetrics();
}
catch (InvalidOperationException e)
{
// JJF Figure out what to do. Changed to warning
v.Warning(T.VDMX_CompareToCalcData, W._TEST_W_ErrorInAnotherTable, m_tag, e.Message);
}
catch(Exception e)
{
v.ApplicationError(T.VDMX_CompareToCalcData, E._Table_E_Exception, m_tag, e.Message);
bRet = false;
}
if (dmd != null)
{
for (uint iRatio=0; iRatio<numRatios; iRatio++)
{
Ratios ratio = GetRatioRange(iRatio);
Vdmx group = GetVdmxGroup(iRatio);
for (uint iEntry=0; iEntry<group.recs; iEntry++)
{
Vdmx.vTable vTableEntry = group.GetEntry(iEntry);
if (vTableEntry.yPelHeight <= 255)
{
if (vTableEntry.yPelHeight == dmd.vdmxData.groups[iRatio].entry[vTableEntry.yPelHeight - group.startsz].yPelHeight)
{
if (vTableEntry.yMin != dmd.vdmxData.groups[iRatio].entry[iEntry].yMin
|| vTableEntry.yMax != dmd.vdmxData.groups[iRatio].entry[iEntry].yMax){
int dif = dmd.vdmxData.groups[iRatio].entry[iEntry].yMax - dmd.vdmxData.groups[iRatio].entry[iEntry].yMin;
if (!TestTolerance(dmd.vdmxData.groups[iRatio].entry[iEntry].yMin, vTableEntry.yMin, dif) ||
!TestTolerance(dmd.vdmxData.groups[iRatio].entry[iEntry].yMax, vTableEntry.yMax, dif))
{
String sDetails = "group[" + iRatio + "], entry[" + iEntry + "], yPelHeight = " + vTableEntry.yPelHeight +
", yMin,yMax = " + vTableEntry.yMin + "," + vTableEntry.yMax +
", calculated yMin,yMax = " + dmd.vdmxData.groups[iRatio].entry[iEntry].yMin + "," +
dmd.vdmxData.groups[iRatio].entry[iEntry].yMax;
v.Error(T.VDMX_CompareToCalcData, E.VDMX_E_CalcData, m_tag, sDetails);
bDataOk = false;
}
else
{
needtol = true;
}
}
/*
else
{
String s = "group[" + iRatio + "], yPelHeight = " + vTableEntry.yPelHeight + ", entry OK";
v.DebugMsg(s, m_tag);
}
*/
}
else
{
Debug.Assert(false);
}
}
else
{
String sDetails = "group[" + iRatio + "], entry[" + iEntry + "], yPelHeight = " + vTableEntry.yPelHeight;
v.Error(T.VDMX_CompareToCalcData, E.VDMX_E_yPelHeight_illegal, m_tag, sDetails);
bDataOk = false;
}
}
}
if (bDataOk)
{
if (needtol)
{
String sDetails = "The differences were smaller than the tolerance, so they may well be valid if the VDMX was hand-tuned";
v.Warning(T.VDMX_CompareToCalcData, W.VDMX_W_CalcData, m_tag, sDetails);
}
else
{
v.Pass(T.VDMX_CompareToCalcData, P.VDMX_P_CalcData, m_tag);
}
}
else
{
//v.Error(T.VDMX_CompareToCalcData, E.VDMX_E_CalcData, m_tag);
bRet = false;
}
}
else
{
// Rasterization could not occur for various reasons.
string s = "Unable to get calculated device metrics.";
v.Error(T.VDMX_CompareToCalcData, E.VDMX_E_CalcData, m_tag, s);
bDataOk = false;
bRet = false;
}
}
return bRet;
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
if (CoverageFormat == 1)
{
if (m_offsetCoverageTable + (uint)FieldOffsets1.GlyphArray + F1GlyphCount*2 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_CoverageTable_E_GlyphArrayPastEOT, table.m_tag, sIdentity);
bRet = false;
}
}
else if (CoverageFormat == 2)
{
if (m_offsetCoverageTable + (uint)FieldOffsets2.RangeRecordArray + F2RangeCount*6 > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E._OTL_CoverageTable_E_RangeRecordArrayPastEOT, table.m_tag, sIdentity);
bRet = false;
}
}
else
{
v.Error(T.T_NULL, E._OTL_CoverageTable_E_Format, table.m_tag, sIdentity + ", format = " + CoverageFormat.ToString());
bRet = false;
}
// way too many coverage tables to justify this pass message
//if (bRet)
//{
// v.Pass("_OTL_CoverageTable_P_valid", table.m_tag, sIdentity);
//}
return bRet;
}