public smallGlyphMetrics GetSmallMetrics(Table_EBLC.indexSubTable cIndexSubTable, uint nGlyphIndex, uint nStartGlyphIndex) { smallGlyphMetrics sgm = null; int nIndexFormat = cIndexSubTable.header.indexFormat; int nImageFormat = cIndexSubTable.header.imageFormat; Debug.Assert(nImageFormat == 1 || nImageFormat == 2 || nImageFormat == 8); // These images all have the same metrics as described in the indexSubTable so should have the proper image format // Debug.Assert( nIndexFormat != 2 && nIndexFormat != 5 ); // commented out the above assert because batang.ttc violates this too much if (nImageFormat == 1 || nImageFormat == 2 || nImageFormat == 8) { if (nGlyphIndex >= nStartGlyphIndex) { //EBDT table starts off with a version data so it would never be possible for this to be set to 0 uint nImageFormatOffset = getImageFormatOffset(cIndexSubTable, nGlyphIndex, nStartGlyphIndex); if (nImageFormatOffset != 0) { // All of the supported image formats start with this data first sgm = new smallGlyphMetrics(); sgm.height = m_bufTable.GetByte(nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.height); sgm.width = m_bufTable.GetByte(nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.width); sgm.BearingX = m_bufTable.GetSbyte(nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.BearingX); sgm.BearingY = m_bufTable.GetSbyte(nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.BearingY); sgm.Advance = m_bufTable.GetByte(nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.Advance); } } } return(sgm); }
public bool Validate_Format2(Validator v, string sIdentity, Table_EBLC.indexSubTable ist) { bool bOk = true; Table_EBLC.indexSubTableArray ista = ist.GetIndexSubTableArray(); for (ushort idGlyph = ista.firstGlyphIndex; idGlyph <= ista.lastGlyphIndex; idGlyph++) { // validate small metrics smallGlyphMetrics sgm = null; try { sgm = GetSmallMetrics(ist, idGlyph, ista.firstGlyphIndex); } catch (Exception e) { v.ApplicationError(T.EBDT_GlyphImageData, E._Table_E_Exception, m_tag, "EBDT.Format2: " + e.Message); bOk = false; return(bOk); } if (sgm != null) { smallGlyphMetrics_val sgm_val = smallGlyphMetrics_val.CreateFromSmallGlyphMetrics(sgm); if (!sgm_val.Validate(v, sIdentity + ", idGlyph=" + idGlyph, this)) { bOk = false; } // validate image data // - this is just bitmap data, any values should be valid } } return(bOk); }
public bool Validate_Format1(Validator v, string sIdentity, Table_EBLC.indexSubTable ist) { bool bOk = true; Table_EBLC.indexSubTableArray ista = ist.GetIndexSubTableArray(); for (ushort idGlyph = ista.firstGlyphIndex; idGlyph <= ista.lastGlyphIndex; idGlyph++) { // validate small metrics smallGlyphMetrics sgm = GetSmallMetrics(ist, idGlyph, ista.firstGlyphIndex); if (sgm != null) { smallGlyphMetrics_val sgm_val = smallGlyphMetrics_val.CreateFromSmallGlyphMetrics(sgm); if (!sgm_val.Validate(v, sIdentity + ", idGlyph=" + idGlyph, this)) { bOk = false; } // validate image data // - this is just bitmap data, any values should be valid } } return(bOk); }
public static smallGlyphMetrics_val CreateFromSmallGlyphMetrics(smallGlyphMetrics sgm) { smallGlyphMetrics_val sgm_val = new smallGlyphMetrics_val(); sgm_val.height = sgm.height; sgm_val.width = sgm.width; sgm_val.BearingX = sgm.BearingX; sgm_val.BearingY = sgm.BearingY; sgm_val.Advance = sgm.Advance; return sgm_val; }
public static smallGlyphMetrics_val CreateFromSmallGlyphMetrics(smallGlyphMetrics sgm) { smallGlyphMetrics_val sgm_val = new smallGlyphMetrics_val(); sgm_val.height = sgm.height; sgm_val.width = sgm.width; sgm_val.BearingX = sgm.BearingX; sgm_val.BearingY = sgm.BearingY; sgm_val.Advance = sgm.Advance; return(sgm_val); }
public object Clone() { smallGlyphMetrics sgm = new smallGlyphMetrics(); sgm.height = height; sgm.width = width; sgm.BearingX = BearingX; sgm.BearingY = BearingY; sgm.Advance = Advance; return(sgm); }
public object Clone() { smallGlyphMetrics sgm = new smallGlyphMetrics(); sgm.height = height; sgm.width = width; sgm.BearingX = BearingX; sgm.BearingY = BearingY; sgm.Advance = Advance; return sgm; }
public smallGlyphMetrics GetSmallMetrics( Table_EBLC.indexSubTable cIndexSubTable, uint nGlyphIndex, uint nStartGlyphIndex ) { smallGlyphMetrics sgm = null; int nIndexFormat = cIndexSubTable.header.indexFormat; int nImageFormat = cIndexSubTable.header.imageFormat; Debug.Assert( nImageFormat == 1 || nImageFormat == 2 || nImageFormat == 8); // These images all have the same metrics as described in the indexSubTable so should have the proper image format // Debug.Assert( nIndexFormat != 2 && nIndexFormat != 5 ); // commented out the above assert because batang.ttc violates this too much if (nImageFormat == 1 || nImageFormat == 2 || nImageFormat == 8) { if( nGlyphIndex >= nStartGlyphIndex ) { //EBDT table starts off with a version data so it would never be possible for this to be set to 0 uint nImageFormatOffset = getImageFormatOffset( cIndexSubTable, nGlyphIndex, nStartGlyphIndex ); if( nImageFormatOffset != 0 ) { // All of the supported image formats start with this data first sgm = new smallGlyphMetrics(); sgm.height = m_bufTable.GetByte( nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.height ); sgm.width = m_bufTable.GetByte( nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.width ); sgm.BearingX = m_bufTable.GetSbyte( nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.BearingX ); sgm.BearingY = m_bufTable.GetSbyte( nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.BearingY ); sgm.Advance = m_bufTable.GetByte( nImageFormatOffset + (uint)smallGlyphMetrics.FieldOffsets.Advance ); } } } return sgm; }
public byte [,] GetBitmapImage(Table_EBLC.bitmapSizeTable bst, ushort glyphID) { byte [,] bits = null; Table_EBLC.indexSubTableArray ista = bst.FindIndexSubTableArray(glyphID); if (ista != null) { Table_EBLC.indexSubTable ist = bst.GetIndexSubTable(ista); if (ist.header.imageFormat < 8) { // simple bitmap byte [] encodedDataBuf = GetImageData(ist, glyphID, ista.firstGlyphIndex); byte width = 0, height = 0; switch (ist.header.imageFormat) { case 0: throw new ApplicationException("illegal image format: 0"); //break; case 1: case 2: smallGlyphMetrics sgm = this.GetSmallMetrics(ist, glyphID, ista.firstGlyphIndex); width = sgm.width; height = sgm.height; break; case 3: case 4: throw new ApplicationException("illegal image format: " + ist.header.imageFormat); //break; case 5: switch (ist.header.indexFormat) { case 2: Table_EBLC.indexSubTable2 ist2 = (Table_EBLC.indexSubTable2)ist; width = ist2.bigMetrics.width; height = ist2.bigMetrics.height; break; case 5: Table_EBLC.indexSubTable5 ist5 = (Table_EBLC.indexSubTable5)ist; width = ist5.bigMetrics.width; height = ist5.bigMetrics.height; break; } break; case 6: case 7: bigGlyphMetrics bgm = this.GetBigMetrics(ist, glyphID, ista.firstGlyphIndex); width = bgm.width; height = bgm.height; break; } if (encodedDataBuf != null) { bits = DecodeImageData(ist, width, height, bst.bitDepth, encodedDataBuf); } else { //Debug.Assert(false); } } else if (ist.header.imageFormat < 10) { // composite bitmap throw new ApplicationException("TODO: impelement bitmap composites"); } else { Debug.Assert(false, "illegal image format"); } } return(bits); }
public bool Validate_Format8(Validator v, string sIdentity, Table_EBLC.indexSubTable ist) { bool bOk = true; Table_EBLC.indexSubTableArray ista = ist.GetIndexSubTableArray(); for (ushort idGlyph = ista.firstGlyphIndex; idGlyph <= ista.lastGlyphIndex; idGlyph++) { // validate small metrics smallGlyphMetrics sgm = GetSmallMetrics(ist, idGlyph, ista.firstGlyphIndex); if (sgm != null) { smallGlyphMetrics_val sgm_val = smallGlyphMetrics_val.CreateFromSmallGlyphMetrics(sgm); if (!sgm_val.Validate(v, sIdentity + ", idGlyph=" + idGlyph, this)) { bOk = false; } ushort numComponents = this.GetNumComponents(ist, idGlyph, ista.firstGlyphIndex); // validate component array for (uint i = 0; i < numComponents; i++) { ebdtComponent component = GetComponent(ist, idGlyph, ista.firstGlyphIndex, i); Debug.Assert(component != null); // validate the ebdtComponent // verify that the component's glyph code is less than maxp numGlyphs if (component.glyphCode >= m_nCachedMaxpNumGlyphs) { string sDetails = sIdentity + ", idGlyph=" + idGlyph + ", component[" + i + "].glyphCode=" + component.glyphCode + ", maxp.numGlyphs = " + m_nCachedMaxpNumGlyphs; v.Error(T.EBDT_GlyphImageData, E.EBDT_E_GlyphImageData, m_tag, sDetails); bOk = false; } // verify that the component's glyph code isn't 0, which should be reserved as the empty glyph // (technically, someone could use the empty glyph as a component, but it's more likely to be an error) if (component.glyphCode == 0) { string sDetails = sIdentity + ", idGlyph=" + idGlyph + ", component[" + i + "].glyphCode=" + component.glyphCode; v.Error(T.EBDT_GlyphImageData, E.EBDT_E_GlyphImageData, m_tag, sDetails); bOk = false; } // verify that the component's glyph code isn't the glyph code of its parent if (component.glyphCode == idGlyph) { string sDetails = sIdentity + ", idGlyph=" + idGlyph + ", component[" + i + "].glyphCode=" + component.glyphCode + " (glyph can't use itself as a component)"; v.Error(T.EBDT_GlyphImageData, E.EBDT_E_GlyphImageData, m_tag, sDetails); bOk = false; } } } } return(bOk); }