void ShpFile::decodeCnC(uint16_t fileIndex, uint8_t* imageOut)
{
if (fileIndex >= _size)
{
throw(Exception(LOG_ERROR, "ShpFile", "Requested frame out of range"));
}
LOG_DEBUG("Frame %d Offset %d, format %d", fileIndex, _index.at(fileIndex).startOffset, _index.at(fileIndex).imgFormat);
_stream.seekg(_index.at(fileIndex).startOffset, std::ios_base::beg);
uint32_t len;
std::vector<uint8_t> source;
switch (_index.at(fileIndex).imgFormat) {
case 0x80:
decode80(imageOut, 0);
break;
case 0x40:{
uint32_t refimage = getIndex(_index.at(fileIndex).refOffset);
decodeCnC(refimage, imageOut);
len = _index.at(fileIndex + 1).startOffset - _index.at(fileIndex).startOffset;
source.resize(len);
source.clear();
_stream.read(reinterpret_cast<char*>(&source.front()), len);
decode40(reinterpret_cast<uint8_t*>(&source.front()), imageOut);
break;
}
case 0x20:
decodeCnC(fileIndex - 1, imageOut);
len = _index.at(fileIndex + 1).startOffset - _index.at(fileIndex).startOffset;
source.resize(len);
source.clear();
_stream.read(reinterpret_cast<char*>(&source.front()), len);
decode40(reinterpret_cast<uint8_t*>(&source.front()), imageOut);
break;
default:
throw(Exception(LOG_ERROR, "ShpFile", "Image format not recognized"));
}
//return Surface(imageOut, _width, _height, 8, _palette);
}
int Cwsa_dune2_file::extract_as_pcx(const Cfname& name, const t_palet _palet) const
{
t_palet palet;
convert_palet_18_to_24(_palet, palet);
int error = 0;
const int cx = get_cx();
const int cy = get_cy();
const int c_frames = get_c_frames();
byte* frame = new byte[cx * cy];
byte* s = new byte[64 << 10];
byte* d = new byte[cx * cy * 2];
memset(frame, 0, cx * cy);
for (int i = 0; i < c_frames; i++)
{
if (get_offset(i))
{
decode80(get_frame(i), s);
decode40(s, frame);
}
int cb_d = pcx_encode(frame, d, cx, cy, 1);
Cpcx_file_write f;
Cfname t = name;
t.set_title(name.get_ftitle() + " " + nwzl(4, i));
error = f.open_write(t);
if (error)
break;
f.set_size(cx, cy, 1);
error = f.write_header();
if (!error)
error = f.write_image(d, cb_d);
if (!error)
error = f.write_palet(palet);
f.close();
if (error)
break;
}
delete[] d;
delete[] s;
delete[] frame;
return error;
}
