GetCalculatedDevMetrics() public method

public GetCalculatedDevMetrics ( ) : RasterInterf.DevMetricsData
return OTFontFile.Rasterizer.RasterInterf.DevMetricsData
        /************************
         * 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 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;
        }
Beispiel #3
0
        /************************
         * 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);
        }
Beispiel #4
0
        /************************
         * 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
                    {
                        dmd = fontOwner.GetCalculatedDevMetrics();
                    }
                    catch (Exception e)
                    {
                        v.ApplicationError(T.VDMX_CompareToCalcData, 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.VDMX_CompareToCalcData, 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 methods
         */


        public bool Validate(Validator v, OTFontVal fontOwner)
        {
            bool bRet = true;

            if (v.PerformTest(T.LTSH_version))
            {
                if (version == 0)
                {
                    v.Pass(T.LTSH_version, P.LTSH_P_version, m_tag);
                }
                else
                {
                    v.Error(T.LTSH_version, E.LTSH_E_version, m_tag, version.ToString());
                    bRet = false;
                }
            }

            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.LTSH_numGlyphs))
            {
                if (numGlyphs == fontOwner.GetMaxpNumGlyphs())
                {
                    v.Pass(T.LTSH_numGlyphs, P.LTSH_P_numGlyphs, m_tag);
                }
                else
                {
                    string s = "LTSH.numGlyphs = " + numGlyphs + ", maxp.numGlyphs = " + fontOwner.GetMaxpNumGlyphs();
                    v.Error(T.LTSH_numGlyphs, E.LTSH_E_numGlyphs, m_tag, s);
                    bRet = false;
                }
            }

            if (v.PerformTest(T.LTSH_TableLength))
            {
                uint CalcLength = (uint)FieldOffsets.yPels + numGlyphs;
                if (GetLength() == CalcLength)
                {
                    v.Pass(T.LTSH_TableLength, P.LTSH_P_TableLength, m_tag);
                }
                else
                {
                    string s = "calc length = " + CalcLength + ", actual length = " + GetLength();
                    v.Error(T.LTSH_TableLength, E.LTSH_E_TableLength, m_tag, s);
                    bRet = false;
                }
            }

            if (v.PerformTest(T.LTSH_yPels))
            {
                bool bYPelsOk = true;
                RasterInterf.DevMetricsData dmd = null;
                try
                {
                    Version ver = fontOwner.GetFile().GetRasterizer().FTVersion;

                    if (ver.CompareTo(new Version(2, 6, 1)) < 0)
                    {
                        v.Warning(T.LTSH_yPels, W.LTSH_W_Need_Newer_FreeType, m_tag,
                                  "Using FreeType Version " + ver + " may not get correct results for LTSH");
                    }

                    dmd = fontOwner.GetCalculatedDevMetrics();
                }
                catch (Exception e)
                {
                    v.ApplicationError(T.LTSH_yPels, E._Table_E_Exception, m_tag, e.Message);
                    bRet = false;
                }

                if (dmd != null)
                {
                    for (uint iGlyphIndex = 0; iGlyphIndex < numGlyphs; iGlyphIndex++)
                    {
                        if (iGlyphIndex >= fontOwner.GetMaxpNumGlyphs())
                        {
                            // JJF. Figure out what to do
                            v.Warning(T.LTSH_yPels, W._TEST_W_OtherErrorsInTable, m_tag, "can't test all yPel values, LTSH.numGlyphs does not equal maxp.numGlyphs");
                            bRet     = false;
                            bYPelsOk = false;
                            break;
                        }

                        if (GetYPel(iGlyphIndex) != dmd.ltshData.yPels[iGlyphIndex])
                        {
                            String sDetails = "glyph# = " + iGlyphIndex + ", value = " + GetYPel(iGlyphIndex) + ", calculated value = " + dmd.ltshData.yPels[iGlyphIndex];
                            v.Error(T.LTSH_yPels, E.LTSH_E_yPels, m_tag, sDetails);
                            bRet     = false;
                            bYPelsOk = false;
                        }

                        /*
                         * else
                         * {
                         *  String sDetails = "glyph# = " + iGlyphIndex + ", value = " + GetYPel(iGlyphIndex);
                         *  v.DebugMsg("yPel value OK! " + sDetails, m_tag);
                         * }
                         */

                        if (GetYPel(iGlyphIndex) == 0)
                        {
                            String sDetails = "glyph# = " + iGlyphIndex;
                            v.Warning(T.LTSH_yPels, W.LTSH_W_yPels_zero, m_tag, sDetails);
                        }
                    }

                    if (bYPelsOk)
                    {
                        v.Pass(T.LTSH_yPels, P.LTSH_P_yPels, 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.LTSH_yPels, E._Table_E_Exception, m_tag, e.Message);
                        }
                        Debug.Assert(sDetails != null);
                        v.Error(T.LTSH_yPels, E.LTSH_E_Rasterizer, m_tag, sDetails);
                        bRet = false;
                    }
                }
            }

            return(bRet);
        }
        /************************
         * public methods
         */


        public bool Validate(Validator v, OTFontVal fontOwner)
        {
            bool bRet = true;

            if (v.PerformTest(T.LTSH_version))
            {
                if (version == 0)
                {
                    v.Pass(T.LTSH_version, P.LTSH_P_version, m_tag);
                }
                else
                {
                    v.Error(T.LTSH_version, E.LTSH_E_version, m_tag, version.ToString());
                    bRet = false;
                }
            }

            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.LTSH_numGlyphs))
            {
                if (numGlyphs == fontOwner.GetMaxpNumGlyphs())
                {
                    v.Pass(T.LTSH_numGlyphs, P.LTSH_P_numGlyphs, m_tag);
                }
                else
                {
                    string s = "LTSH.numGlyphs = " + numGlyphs + ", maxp.numGlyphs = " + fontOwner.GetMaxpNumGlyphs();
                    v.Error(T.LTSH_numGlyphs, E.LTSH_E_numGlyphs, m_tag, s);
                    bRet = false;
                }
            }

            if (v.PerformTest(T.LTSH_TableLength))
            {
                uint CalcLength = (uint)FieldOffsets.yPels + numGlyphs;
                if (GetLength() == CalcLength)
                {
                    v.Pass(T.LTSH_TableLength, P.LTSH_P_TableLength, m_tag);
                }
                else
                {
                    string s = "calc length = " + CalcLength + ", actual length = " + GetLength();
                    v.Error(T.LTSH_TableLength, E.LTSH_E_TableLength, m_tag, s);
                    bRet = false;
                }
            }

            if (v.PerformTest(T.LTSH_yPels))
            {
                bool bYPelsOk = true;
                RasterInterf.DevMetricsData dmd = null;
                try
                {
                    Version ver = fontOwner.GetFile().GetRasterizer().FTVersion;

                    if ( ver.CompareTo(new Version(2,6,1)) < 0 )
                        v.Warning(T.LTSH_yPels, W.LTSH_W_Need_Newer_FreeType, m_tag,
                                  "Using FreeType Version " + ver + " may not get correct results for LTSH");

                    dmd = fontOwner.GetCalculatedDevMetrics();
                }
                catch (Exception e)
                {
                    v.ApplicationError(T.LTSH_yPels, E._Table_E_Exception, m_tag, e.Message);
                    bRet = false;
                }

                if (dmd != null)
                {
                    for( uint iGlyphIndex = 0; iGlyphIndex < numGlyphs; iGlyphIndex++ )
                    {
                        if (iGlyphIndex >= fontOwner.GetMaxpNumGlyphs())
                        {
                            // JJF. Figure out what to do
                            v.Warning(T.LTSH_yPels, W._TEST_W_OtherErrorsInTable, m_tag, "can't test all yPel values, LTSH.numGlyphs does not equal maxp.numGlyphs");
                            bRet = false;
                            bYPelsOk = false;
                            break;
                        }

                        if( GetYPel(iGlyphIndex) != dmd.ltshData.yPels[iGlyphIndex] )
                        {
                            String sDetails = "glyph# = " + iGlyphIndex + ", value = " + GetYPel(iGlyphIndex) + ", calculated value = " + dmd.ltshData.yPels[iGlyphIndex];
                            v.Error(T.LTSH_yPels, E.LTSH_E_yPels, m_tag, sDetails);
                            bRet = false;
                            bYPelsOk = false;
                        }
                        /*
                        else
                        {
                            String sDetails = "glyph# = " + iGlyphIndex + ", value = " + GetYPel(iGlyphIndex);
                            v.DebugMsg("yPel value OK! " + sDetails, m_tag);
                        }
                        */

                        if (GetYPel(iGlyphIndex) == 0)
                        {
                            String sDetails = "glyph# = " + iGlyphIndex;
                            v.Warning(T.LTSH_yPels, W.LTSH_W_yPels_zero, m_tag, sDetails);
                        }
                    }

                    if (bYPelsOk)
                    {
                        v.Pass(T.LTSH_yPels, P.LTSH_P_yPels, 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.LTSH_yPels, E._Table_E_Exception, m_tag, e.Message);
                        }
                        Debug.Assert(sDetails != null);
                        v.Error(T.LTSH_yPels, E.LTSH_E_Rasterizer, m_tag, sDetails);
                        bRet = false;
                    }                    
                }
            }

            return bRet;
        }