int ccMaterialSet::addMaterial(ccMaterial::CShared mtl, bool allowDuplicateNames/*=false*/)
{
if (!mtl)
{
//invalid input material
return -1;
}
//material already exists?
int previousIndex = findMaterialByName(mtl->getName());
//DGM: warning, the materials may have the same name, but they may be different in reality (other texture, etc.)!
if (previousIndex >= 0)
{
const ccMaterial::CShared& previousMtl = (*this)[previousIndex];
if (!previousMtl->compare(*mtl))
{
//in fact the material is a bit different
previousIndex = -1;
if (!allowDuplicateNames)
{
//generate a new name
static const unsigned MAX_ATTEMPTS = 100;
for (unsigned i=1 ; i < MAX_ATTEMPTS; i++)
{
QString newMtlName = previousMtl->getName() + QString("_%1").arg(i);
if (findMaterialByName(newMtlName) < 0)
{
//we duplicate the material and we change its name
ccMaterial::Shared newMtl(new ccMaterial(*mtl));
newMtl->setName(newMtlName);
mtl = newMtl;
break;
}
}
}
}
}
if (previousIndex >= 0 && !allowDuplicateNames)
return previousIndex;
try
{
push_back(mtl);
}
catch (const std::bad_alloc&)
{
//not enough memory
return -1;
}
return static_cast<int>(size())-1;
}
s32 CMaterialsManager::addMaterial(const vid::SMaterial &m, const c8 *name)
{
u64 hash = m.getHash();
if (findMaterialByHash(hash) != -1)
return -1;
if (findMaterialByName(name) != -1)
return -1;
Materials.push_back(SMeshBufferMaterial(m, (vid::E_VERTEX_TYPE)-1, name));
_updateMaterialsHash();
return findMaterialByHash(hash);
}
