/************************ * 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; }