X BigInteger::convertToSignedPrimitive() const {
if (sign == zero)
return 0;
else if (mag.getLength() == 1) {
// The single block might fit in an X. Try the conversion.
Blk b = mag.getBlock(0);
if (sign == positive) {
X x = X(b);
if (x >= 0 && Blk(x) == b)
return x;
} else {
X x = -X(b);
/* UX(...) needed to avoid rejecting conversion of
* -2^15 to a short. */
if (x < 0 && Blk(UX(-x)) == b)
return x;
}
// Otherwise fall through.
}
throw "BigInteger::to<Primitive>: "
"Value is too big to fit in the requested type";
}
void CImage::WriteHeader(ScsiWindow *pscsiwindow, int size, char *szMeta)
{
TiffBitonal tiffbitonal;
TiffGray tiffgray;
TiffColor tiffcolor;
if (pod.m_pfile)
{
fseek(pod.m_pfile,0,SEEK_SET);
switch (pscsiwindow->ImageComposition)
{
default:
case 1:
memcpy(&tiffbitonal,&s_tiffbitonal,sizeof(tiffbitonal));
tiffbitonal.tifftag[2].u32Value = UX(pscsiwindow->Width) / (1200 / WX(pscsiwindow->X_resolution));
tiffbitonal.tifftag[3].u32Value = size / ((tiffbitonal.tifftag[2].u32Value + 7) / 8);
tiffbitonal.tifftag[5].u32Value = 1;
tiffbitonal.tifftag[6].u32Value = 1;
tiffbitonal.tifftag[10].u32Value = size / ((tiffbitonal.tifftag[2].u32Value + 7) / 8);
tiffbitonal.tifftag[11].u32Value = size;
tiffbitonal.tifftag[14].u32Value = 292;
tiffbitonal.tifftag[14].u32Value = 0;
tiffbitonal.u32XResolution[0] = WX(pscsiwindow->X_resolution);
tiffbitonal.u32YResolution[0] = WX(pscsiwindow->Y_resolution);
fwrite(&tiffbitonal,1,sizeof(tiffbitonal),pod.m_pfile);
if (szMeta)
{
sprintf
(
szMeta,
"<sword>\n"
"\t<pixel>bw</pixel>\n"
"\t<resolution>%d</resolution>\n"
"\t<size>%d</size>\n"
"\t<width>%d</width>\n"
"\t<height>%d</height>\n"
"\t<bytesperrow>%d</bytesperrow>\n"
"</sword>\n",
WX(pscsiwindow->X_resolution),
sizeof(tiffbitonal) + size,
UX(tiffbitonal.tifftag[2].u32Value),
UX(tiffbitonal.tifftag[3].u32Value),
tiffbitonal.tifftag[10].u32Value
);
}
break;
case 2:
memcpy(&tiffgray,&s_tiffgray,sizeof(tiffgray));
tiffgray.tifftag[2].u32Value = UX(pscsiwindow->Width) / (1200 / WX(pscsiwindow->X_resolution));
tiffgray.tifftag[3].u32Value = size / tiffgray.tifftag[2].u32Value;
tiffgray.tifftag[5].u32Value = 1;
tiffgray.tifftag[9].u32Value = size / tiffgray.tifftag[2].u32Value;
tiffgray.tifftag[10].u32Value = size;
tiffgray.u32XResolution[0] = WX(pscsiwindow->X_resolution);
tiffgray.u32YResolution[0] = WX(pscsiwindow->Y_resolution);
fwrite(&tiffgray,1,sizeof(tiffgray),pod.m_pfile);
if (szMeta)
{
sprintf
(
szMeta,
"<sword>\n"
"\t<pixel>gray</pixel>\n"
"\t<resolution>%d</resolution>\n"
"\t<size>%d</size>\n"
"\t<width>%d</width>\n"
"\t<height>%d</height>\n"
"\t<bytesperrow>%d</bytesperrow>\n"
"</sword>\n",
WX(pscsiwindow->X_resolution),
sizeof(tiffgray) + size,
tiffgray.tifftag[2].u32Value,
tiffgray.tifftag[3].u32Value,
tiffgray.tifftag[9].u32Value
);
}
break;
case 5:
memcpy(&tiffcolor,&s_tiffcolor,sizeof(tiffcolor));
tiffcolor.tifftag[2].u32Value = UX(pscsiwindow->Width) / (1200 / WX(pscsiwindow->X_resolution));
tiffcolor.tifftag[3].u32Value = size / (tiffcolor.tifftag[2].u32Value * 3);
tiffcolor.tifftag[5].u32Value = 1;
tiffcolor.tifftag[9].u32Value = size / (tiffcolor.tifftag[2].u32Value * 3);
tiffcolor.tifftag[10].u32Value = size;
tiffcolor.u32XResolution[0] = WX(pscsiwindow->X_resolution);
tiffcolor.u32YResolution[0] = WX(pscsiwindow->Y_resolution);
fwrite(&tiffcolor,1,sizeof(tiffcolor),pod.m_pfile);
if (szMeta)
{
sprintf
(
szMeta,
"<sword>\n"
"\t<pixel>color</pixel>\n"
"\t<resolution>%d</resolution>\n"
"\t<size>%d</size>\n"
"\t<width>%d</width>\n"
"\t<height>%d</height>\n"
"\t<bytesperrow>%d</bytesperrow>\n"
"</sword>\n",
WX(pscsiwindow->X_resolution),
sizeof(tiffcolor) + size,
UX(tiffcolor.tifftag[2].u32Value),
UX(tiffcolor.tifftag[3].u32Value),
tiffcolor.tifftag[9].u32Value
);
}
break;
}
}
}
