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GiantsTools/Plugins/imp_gbs/GbsData.cpp

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#include "Importer.h"
void GbsData::Read(FILE* file)
{
DWORD versionHeader;
fread(&versionHeader, 4, 1, file);
if (versionHeader != GBS_VERSION)
{
throw std::exception("File does not appear to be a GBS file.");
}
fread(&optionsflags, 4, 1, file);
fread(&naverts, 4, 1, file);
averts.resize(naverts);
for (int i = 0; i < naverts; i++)
{
fread(&averts.at(i).x, 4, 1, file);
fread(&averts.at(i).y, 4, 1, file);
fread(&averts.at(i).z, 4, 1, file);
}
if (FlagIsSet(optionsflags, GBSFlagNormals))
{
fread(&nndefs, 4, 1, file);
fread(&sizendefs, 4, 1, file);
ndefs.resize(sizendefs);
for (uint i = 0; i < sizendefs; i++)
fread(&ndefs.at(i), 2, 1, file);
}
fread(&nverts, 4, 1, file);
iverts.resize(nverts);
for (int i = 0; i < nverts; i++)
fread(&iverts.at(i), 2, 1, file);
if (FlagIsSet(optionsflags, GBSFlagNormals))
{
inorms.resize(nverts);
for (int i = 0; i < nverts; i++)
fread(&inorms.at(i), 2, 1, file);
}
if (FlagIsSet(optionsflags, GBSFlagUVs))
{
vertuv.resize(nverts);
for (int i = 0; i < nverts; i++)
{
fread(&vertuv.at(i).u, 4, 1, file);
fread(&vertuv.at(i).v, 4, 1, file);
vertuv.at(i).v = vertuv.at(i).v + 1.0f;
}
}
if (FlagIsSet(optionsflags, GBSFlagRGBs))
{
vertrgb.resize(nverts);
for (int i = 0; i < nverts; i++)
{
fread(&vertrgb.at(i).r, 1, 1, file);
fread(&vertrgb.at(i).g, 1, 1, file);
fread(&vertrgb.at(i).b, 1, 1, file);
}
}
// Get number of max objects
fread(&nmobjs, 4, 1, file);
MaxObjs.resize(nmobjs);
for (auto& maxObj : MaxObjs)
{
FileMaxObj fileMaxObj;
fread(&fileMaxObj, sizeof(FileMaxObj), 1, file);
maxObj.vstart = fileMaxObj.vstart;
maxObj.vcount = fileMaxObj.vcount;
maxObj.nstart = fileMaxObj.nstart;
maxObj.ncount = fileMaxObj.ncount;
maxObj.noffset = fileMaxObj.noffset;
maxObj.fstart = 0;
maxObj.fcount = 0;
maxObj.sostart = 0;
maxObj.socount = 0;
}
VerifyMaxObjs();
// Get number of subobjects
fread(&nsobjs, 4, 1, file);
SubObjs.resize(nsobjs);
for (int ns = 0; ns < nsobjs; ns++)
{
SubObject& object = SubObjs.at(ns);
fread(&object.objname, sizeof(object.objname), 1, file);
fread(&object.maxobjindex, 4, 1, file);
fread(&object.totaltris, 4, 1, file);
fread(&object.ntris, 4, 1, file);
assert((object.ntris - 1) / 3 == object.totaltris);
object.tridata.resize(object.ntris + 1);
fread(object.tridata.data(), sizeof(unsigned short) * object.ntris, 1, file);
fread(&object.vstart, 4, 1, file);
fread(&object.vcount, 4, 1, file);
if (FlagIsSet(optionsflags, GBSFlagUVs))
{
fread(&object.texname, 1, 32, file);
fread(&object.texname2, 1, 32, file);
}
fread(&object.falloff, 4, 1, file);
if (FlagIsSet(optionsflags, GBSFlagRGBs))
fread(&object.blend, 4, 1, file);
fread(&object.flags, 4, 1, file);
fread(&object.emissive, 1, 4, file);
fread(&object.ambient, 1, 4, file);
fread(&object.diffuse, 1, 4, file);
fread(&object.specular, 1, 4, file);
fread(&object.power, 4, 1, file);
MaxObj& maxobj = MaxObjs.at(object.maxobjindex);
maxobj.fcount += object.totaltris;
if (!maxobj.socount)
{
maxobj.sostart = ns;
}
maxobj.socount++;
}
}
bool GbsData::VerifyMaxObjs()
{
int nmcount = 0;
for (const auto& maxObj : MaxObjs)
{
nmcount += maxObj.vcount;
}
assert(nmcount == naverts);
return nmcount == naverts;
}