public MinMaxTable_val GetMinMaxTable_val(BaseLangSysRecord blsr)
{
MinMaxTable_val mmt = null;
if (blsr != null)
{
ushort offset = (ushort)(m_offsetBaseScriptTable + blsr.MinMaxOffset);
mmt = new MinMaxTable_val(offset, m_bufTable);
}
return(mmt);
}
public BaseLangSysRecord GetBaseLangSysRecord(uint i)
{
BaseLangSysRecord blsr = null;
if (i < BaseLangSysCount)
{
ushort sizeofBaseLangSysRecord = 6;
ushort offset = (ushort)(m_offsetBaseScriptTable + (uint)FieldOffsets.BaseLangSysRecords + sizeofBaseLangSysRecord * i);
blsr = new BaseLangSysRecord(offset, m_bufTable);
}
return(blsr);
}
public bool Validate(Validator v, string sIdentity, OTTable table)
{
bool bRet = true;
bRet &= ((val_BASE)table).ValidateNoOverlap(m_offsetBaseScriptTable, CalcLength(), v, sIdentity, table.GetTag());
// check the BaseValuesOffset
if (BaseValuesOffset == 0)
{
v.Pass(T.T_NULL, P.BASE_P_BaseValuesOffset_null, table.m_tag, sIdentity);
}
else if (BaseValuesOffset + m_offsetBaseScriptTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_BaseValuesOffset, table.m_tag, sIdentity);
}
else
{
v.Pass(T.T_NULL, P.BASE_P_BaseValuesOffset, table.m_tag, sIdentity);
}
// check the DefaultMinMaxOffset
if (DefaultMinMaxOffset == 0)
{
v.Pass(T.T_NULL, P.BASE_P_DefaultMinMaxOffset_null, table.m_tag, sIdentity);
}
else if (DefaultMinMaxOffset + m_offsetBaseScriptTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_DefaultMinMaxOffset, table.m_tag, sIdentity);
}
else
{
v.Pass(T.T_NULL, P.BASE_P_DefaultMinMaxOffset, table.m_tag, sIdentity);
}
// check the BaseLangSysRecord order
bool bOrderOk = true;
if (BaseLangSysCount > 1)
{
for (uint i = 0; i < BaseLangSysCount - 1; i++)
{
BaseLangSysRecord ThisBlsr = GetBaseLangSysRecord(i);
BaseLangSysRecord NextBlsr = GetBaseLangSysRecord(i + 1);
if (ThisBlsr.BaseLangSysTag >= NextBlsr.BaseLangSysTag)
{
v.Error(T.T_NULL, E.BASE_E_BaseLangSysRecord_order, table.m_tag, sIdentity);
bOrderOk = false;
bRet = false;
}
}
}
if (bOrderOk)
{
v.Pass(T.T_NULL, P.BASE_P_BaseLangSysRecord_order, table.m_tag, sIdentity);
}
// check the BaseLangSysRecord MinMaxOffsets
bool bOffsetsOk = true;
for (uint i = 0; i < BaseLangSysCount; i++)
{
BaseLangSysRecord bslr = GetBaseLangSysRecord(i);
if (bslr.MinMaxOffset == 0)
{
v.Error(T.T_NULL, E.BASE_E_BaseLangSysRecord_offset0, table.m_tag, sIdentity + ", BaseLangSysRecord index = " + i);
bOffsetsOk = false;
bRet = false;
}
else if (bslr.MinMaxOffset + m_offsetBaseScriptTable > m_bufTable.GetLength())
{
v.Error(T.T_NULL, E.BASE_E_BaseLangSysRecord_offset, table.m_tag, sIdentity + ", BaseLangSysRecord index = " + i);
bOffsetsOk = false;
bRet = false;
}
}
if (bOffsetsOk)
{
v.Pass(T.T_NULL, P.BASE_P_BaseLangSysRecord_offsets, table.m_tag, sIdentity);
}
// check the BaseValuesTable
if (BaseValuesOffset != 0)
{
BaseValuesTable_val bvt = GetBaseValuesTable_val();
bvt.Validate(v, sIdentity, table);
}
// check the Default MinMaxTable
if (DefaultMinMaxOffset != 0)
{
MinMaxTable_val mmt = GetDefaultMinMaxTable_val();
mmt.Validate(v, sIdentity + ", default MinMax", table);
}
// check the BaseLangSysRecord MinMaxTables
for (uint i = 0; i < BaseLangSysCount; i++)
{
BaseLangSysRecord blsr = GetBaseLangSysRecord(i);
MinMaxTable_val mmt = GetMinMaxTable_val(blsr);
mmt.Validate(v, sIdentity + ", BaseLangSysRecord[" + i + "]", table);
}
return(bRet);
}
static BaseScript ReadBaseScriptTable(BinaryReader reader)
{
//BaseScript Table
//A BaseScript table organizes and specifies the baseline data and min/max extent data for one script.
//Within a BaseScript table, the BaseValues table contains baseline information,
//and one or more MinMax tables contain min/max extent data
//....
//A BaseScript table has four components:
//...
long baseScriptTableStartAt = reader.BaseStream.Position;
//BaseScript Table
//Type Name Description
//Offset16 baseValuesOffset Offset to BaseValues table, from beginning of BaseScript table (may be NULL)
//Offset16 defaultMinMaxOffset Offset to MinMax table, from beginning of BaseScript table (may be NULL)
//uint16 baseLangSysCount Number of BaseLangSysRecords defined — may be zero (0)
//BaseLangSysRecord baseLangSysRecords[baseLangSysCount] Array of BaseLangSysRecords, in alphabetical order by BaseLangSysTag
ushort baseValueOffset = reader.ReadUInt16();
ushort defaultMinMaxOffset = reader.ReadUInt16();
ushort baseLangSysCount = reader.ReadUInt16();
BaseLangSysRecord[] baseLangSysRecords = null;
if (baseLangSysCount > 0)
{
baseLangSysRecords = new BaseLangSysRecord[baseLangSysCount];
for (int i = 0; i < baseLangSysCount; ++i)
{
//BaseLangSysRecord
//A BaseLangSysRecord defines min/max extents for a language system or a language-specific feature.
//Each record contains an identification tag for the language system (baseLangSysTag) and an offset to a MinMax table (MinMax)
//that defines extent coordinate values for the language system and references feature-specific extent data.
//BaseLangSysRecord
//Type Name Description
//Tag baseLangSysTag 4-byte language system identification tag
//Offset16 minMaxOffset Offset to MinMax table, from beginning of BaseScript table
baseLangSysRecords[i] = new BaseLangSysRecord(ConvertToTagString(reader.ReadBytes(4)), reader.ReadUInt16());
}
}
BaseScript baseScript = new BaseScript();
baseScript.baseLangSysRecords = baseLangSysRecords;
//--------------------
if (baseValueOffset > 0)
{
reader.BaseStream.Position = baseScriptTableStartAt + baseValueOffset;
baseScript.baseValues = ReadBaseValues(reader);
}
if (defaultMinMaxOffset > 0)
{
reader.BaseStream.Position = baseScriptTableStartAt + defaultMinMaxOffset;
baseScript.MinMax = ReadMinMaxTable(reader);
}
return(baseScript);
}
public MinMaxTable GetMinMaxTable(BaseLangSysRecord blsr)
{
MinMaxTable mmt = null;
if (blsr != null)
{
ushort offset = (ushort)(m_offsetBaseScriptTable + blsr.MinMaxOffset);
mmt = new MinMaxTable(offset, m_bufTable);
}
return mmt;
}
public BaseLangSysRecord GetBaseLangSysRecord(uint i)
{
BaseLangSysRecord blsr = null;
if (i < BaseLangSysCount)
{
ushort sizeofBaseLangSysRecord = 6;
ushort offset = (ushort)(m_offsetBaseScriptTable + (uint)FieldOffsets.BaseLangSysRecords + sizeofBaseLangSysRecord*i);
blsr = new BaseLangSysRecord(offset, m_bufTable);
}
return blsr;
}
