void
Tfm::Read ()
{
if (! dviChars.empty() || dviInfo.notLoadable)
{
return;
}
trace_tfm->WriteFormattedLine
("libdvi",
T_("going to load TFM file %s"),
dviInfo.name.c_str());
PathName fileName;
bool tfmFileExists =
SessionWrapper(true)->FindTfmFile(dviInfo.name.c_str(),
fileName,
false);
if (! tfmFileExists)
{
if (Make(dviInfo.name))
{
tfmFileExists =
SessionWrapper(true)->FindTfmFile(dviInfo.name.c_str(),
fileName,
false);
if (! tfmFileExists)
{
// this shouldn't happen; but it does (#521481)
}
}
if (! tfmFileExists)
{
dviInfo.transcript += "\r\n";
dviInfo.transcript += T_("Loading 'cmr10' instead.\r\n");
trace_error->WriteFormattedLine
("libdvi",
T_("'%s' not loadable - loading 'cmr10' instead!"),
dviInfo.name.c_str());
if (! (SessionWrapper(true)->FindTfmFile("cmr10",
fileName,
false)
|| (Make("cmr10")
&& SessionWrapper(true)->FindTfmFile("cmr10",
fileName,
false))))
{
dviInfo.transcript += T_("'cmr10' not loadable either!");
trace_error->WriteLine
("libdvi",
T_("'cmr10' not loadable - will display blank chars!"));
return;
}
}
}
dviInfo.fileName = fileName.ToString();
trace_tfm->WriteFormattedLine
("libdvi",
T_("opening TFM file %s"),
fileName.Get());
InputStream inputStream (fileName.Get());
long lf = inputStream.ReadSignedPair();
if (lf == 0)
{
FATAL_DVI_ERROR ("Tfm::Read",
T_("Invalid TFM file."),
0);
}
long lh = inputStream.ReadSignedPair();
long bc = inputStream.ReadSignedPair();
long ec = inputStream.ReadSignedPair();
long nw = inputStream.ReadSignedPair();
long nh = inputStream.ReadSignedPair();
long nd = inputStream.ReadSignedPair();
long ni = inputStream.ReadSignedPair();
long nl = inputStream.ReadSignedPair();
long nk = inputStream.ReadSignedPair();
long ne = inputStream.ReadSignedPair();
long np = inputStream.ReadSignedPair();
trace_tfm->WriteFormattedLine
("libdvi",
T_("header size: %ld"),
lh);
trace_tfm->WriteFormattedLine
("libdvi",
T_("smallest character code: %ld"),
bc);
trace_tfm->WriteFormattedLine
("libdvi",
T_("largest character code: %ld"),
ec);
trace_tfm->WriteFormattedLine
("libdvi",
T_("width table size: %ld"),
nw);
trace_tfm->WriteFormattedLine
("libdvi",
T_("height table size: %ld"),
nh);
trace_tfm->WriteFormattedLine
("libdvi",
T_("depth table size: %ld"),
nd);
trace_tfm->WriteFormattedLine
("libdvi",
T_("italic correction table size: %ld"),
ni);
trace_tfm->WriteFormattedLine
("libdvi",
T_("lig/kern table size: %ld"),
nl);
trace_tfm->WriteFormattedLine
("libdvi",
T_("kern table size: %ld"),
nk);
trace_tfm->WriteFormattedLine
("libdvi",
T_("extensible character table size: %ld"),
ne);
trace_tfm->WriteFormattedLine
("libdvi",
T_("font parameter size: %ld"),
np);
int my_checkSum = inputStream.ReadSignedQuad();
trace_tfm->WriteFormattedLine
("libdvi",
"checkSum: 0%lo",
my_checkSum);
int my_designSize = inputStream.ReadSignedQuad();
trace_tfm->WriteFormattedLine
("libdvi",
"designSize: %ld",
my_designSize);
if (my_checkSum != checkSum)
{
trace_error->WriteFormattedLine
("libdvi",
T_("%s: checkSum mismatch"),
dviInfo.name.c_str());
}
if (my_designSize * tfmConv != designSize)
{
trace_error->WriteFormattedLine
("libdvi",
T_("%s: designSize mismatch"),
dviInfo.name.c_str());
}
inputStream.SkipBytes ((lh - 2) * 4);
struct TfmIndex
{
int widthIndex;
int heightIndex;
int depthIndex;
};
vector<TfmIndex> infoTable (ec);
for (int charCode = bc; charCode < ec; ++ charCode)
{
DviChar * pDviChar = new DviChar (this);
dviChars[charCode] = pDviChar;
pDviChar->SetCharacterCode (charCode);
TfmIndex tfmIndex;
tfmIndex.widthIndex = inputStream.ReadSignedByte();
int heightDepth = inputStream.ReadSignedByte();
tfmIndex.heightIndex = ((heightDepth >> 4) & 15);
tfmIndex.depthIndex = (heightDepth & 15);
inputStream.SkipBytes (2);
infoTable[charCode] = tfmIndex;
}
vector<int> widths (nw);
for (int idx = 0; idx < nw; ++ idx)
{
widths[idx] = inputStream.ReadSignedQuad();
}
vector<int> heights (nh);
for (int idx = 0; idx < nh; ++ idx)
{
heights[idx] = inputStream.ReadSignedQuad();
}
vector<int> depths (nd);
for (int idx = 0; idx < nd; ++ idx)
{
depths[idx] = inputStream.ReadSignedQuad();
}
// inputStream.Close ();
for (int charCode = bc; charCode < ec; ++ charCode)
{
int tfmWidth =
ScaleFix(widths[infoTable[charCode].widthIndex], GetScaledAt());
dviChars[charCode]->SetDviWidth (tfmWidth);
int pixelWidth;
if (tfmWidth >= 0)
{
pixelWidth = static_cast<int>(conv * tfmWidth + 0.5);
}
else
{
pixelWidth = - static_cast<int>(conv * -tfmWidth + 0.5);
}
dviChars[charCode]->SetWidth (pixelWidth);
}
}
void
PkChar::Read (/*[in]*/ InputStream & inputstream,
/*[in]*/ int flag)
{
this->flag = flag;
if (IsShort())
{
// read character preamble (short form)
packetSize = (((static_cast<int>(GetLower3()) % 4) << 8
| inputstream.ReadByte())
- 8);
charCode = inputstream.ReadByte();
tfm = inputstream.ReadTrio();
cx = inputstream.ReadByte();
rasterWidth = inputstream.ReadByte();
rasterHeight = inputstream.ReadByte();
cxOffset = inputstream.ReadSignedByte();
cyOffset = inputstream.ReadSignedByte();
}
else if (IsExtendedShort())
{
// read character preamble (extended short form)
packetSize = (((static_cast<int>(GetLower3()) % 4) << 16
| inputstream.ReadPair())
- 13);
charCode = inputstream.ReadByte();
tfm = inputstream.ReadTrio();
cx = inputstream.ReadPair();
rasterWidth = inputstream.ReadPair();
rasterHeight = inputstream.ReadPair();
cxOffset = inputstream.ReadSignedPair();
cyOffset = inputstream.ReadSignedPair();
}
else
{
// read character preamble (long form)
packetSize = inputstream.ReadSignedQuad() - 28;
charCode = inputstream.ReadSignedQuad();
tfm = inputstream.ReadSignedQuad();
cx = inputstream.ReadSignedQuad();
cx = (cx + 0x10000) >> 16;
cy = inputstream.ReadSignedQuad();
cy = (cy + 0x10000) >> 16;
rasterWidth = inputstream.ReadSignedQuad();
rasterHeight = inputstream.ReadSignedQuad();
cxOffset = inputstream.ReadSignedQuad();
cyOffset = inputstream.ReadSignedQuad();
}
tfm = ScaleFix(tfm, pDviFont->GetScaledAt());
if (packetSize == 0)
{
#if 0
trace_error->WriteFormattedLine
("libdvi",
T_("%d: no glyph!"),
charCode);
#endif
}
else
{
trace_pkchar->WriteFormattedLine
("libdvi",
T_("going to read character %d"),
charCode);
pPackedRaster = new BYTE[packetSize];
inputstream.Read (pPackedRaster, packetSize);
}
}
