void DiMeshSerializerImpl::ReadSubMesh( DiDataStreamPtr& stream, DiMesh* pMesh )
{
DI_SERIAL_LOG("Reading submesh..");
DiSubMesh* sm = pMesh->CreateSubMesh();
unsigned short streamID = 0;
DiString material = ReadString(stream);
sm->SetMaterialName(material);
DI_SERIAL_LOG("Liking material: %s", material.c_str());
unsigned int indexCount = 0;
ReadInts(stream, &indexCount, 1);
DI_SERIAL_LOG("Indeices count: %d", indexCount);
bool idx32bit;
ReadBools(stream, &idx32bit, 1);
DI_SERIAL_LOG("Index size: %d", idx32bit?32:16);
uint16 primitive;
ReadShorts(stream,&primitive,1);
sm->SetPrimitiveType((DiPrimitiveType)primitive);
DI_SERIAL_LOG("Primitive type: %d", primitive);
if (indexCount > 0)
{
void* indexdata = sm->CreateIndexData(indexCount,idx32bit?TRUE:FALSE);
int size = indexCount * (sm->GetIndexSize() / 8);
stream->Read(indexdata, size);
DI_SERIAL_LOG("%d bytes readed", size);
}
streamID = ReadChunk(stream);
if (streamID != DI_GEOMETRY)
{
DI_ERROR("Bad stream ID");
return;
}
ReadGeometry(stream, sm);
if (!stream->Eof())
{
streamID = ReadChunk(stream);
if (streamID == DI_MESH_WEIGHTS)
{
ReadSubMeshBoneWeights(stream,sm);
}
else
{
if (!stream->Eof())
stream->Skip(-MSTREAM_OVERHEAD_SIZE);
}
}
}
void ColladaParser::ReadGeometry(XmlElement* e)
{
Geometry g;
g.id = e->Attribute("id");
g.name = e->Attribute("name");
{
auto v = e->Child("mesh")->Childs("source");
for (int ia = 0; ia < v.size(); ia++)
g.ReadSource(v[ia]);
}
{
auto v = e->Child("mesh")->Childs("vertices");
for (int ia = 0; ia < v.size(); ia++)
{
Geometry::Vertices vert;
vert.id = v[ia]->Attribute("id");
vert.positionSourceId = ReadId(v[ia]->Child("input", "semantic", "POSITION")->Attribute("source"));
vert.normalSourceId = ReadId(v[ia]->Child("input", "semantic", "NORMAL")->Attribute("source"));
vert.texcoordSourceId = ReadId(v[ia]->Child("input", "semantic", "TEXCOORD")->Attribute("source"));
g.vertices.emplace(vert.id, vert);
}
}
auto t = e->Child("mesh")->Child("triangles");
auto count = ReadInt(t->Attribute("count"));
g.triangleVerticesId = ReadId(t->Child("input")->Attribute("source"));
g.triangleIndices = ReadInts(t->Child("p")->content, count * 3);
geometries.emplace(g.id, g);
}
uint16 DiSerializer::ReadChunk( DiDataStreamPtr& stream )
{
unsigned short id;
ReadShorts(stream, &id, 1);
ReadInts(stream, &mCurChunkSize, 1);
return id;
}
void DiMeshSerializerImpl::ReadGeometry( DiDataStreamPtr& stream, DiSubMesh* pMesh )
{
DI_SERIAL_LOG("Reading geometry data...");
unsigned int vertexCount = 0;
ReadInts(stream, &vertexCount, 1);
pMesh->SetVerticeNum(vertexCount);
DI_SERIAL_LOG("Vertices count: %d", vertexCount);
unsigned int faceCount = 0;
ReadInts(stream, &faceCount, 1);
pMesh->SetPrimitiveCount(faceCount);
DI_SERIAL_LOG("Face count: %d", faceCount);
if (!stream->Eof())
{
unsigned short streamID = ReadChunk(stream);
while(!stream->Eof() &&
(streamID == DI_GEOMETRY_VERTEX_BUFFER ||
streamID == DI_GEOMETRY_VERTEX_DECLARATION))
{
switch (streamID)
{
case DI_GEOMETRY_VERTEX_DECLARATION:
ReadGeometryVertexDeclaration(stream, pMesh);
break;
case DI_GEOMETRY_VERTEX_BUFFER:
ReadGeometryVertexBuffer(stream, pMesh);
break;
}
if (!stream->Eof())
{
streamID = ReadChunk(stream);
}
}
if (!stream->Eof())
{
stream->Skip(-MSTREAM_OVERHEAD_SIZE);
}
}
}
void DiMeshSerializerImpl::ReadSubMeshBoneWeights( DiDataStreamPtr& stream, DiSubMesh* pMesh )
{
DI_SERIAL_LOG("Reading bone weights...");
uint32 size = 0;
ReadInts(stream,&size,1);
DI_SERIAL_LOG("Size: %d",size);
for (uint16 i=0; i<size; i++)
{
DiBoneWeight weight;
ReadInts(stream,&weight.vertexIndex,1);
ReadShorts(stream,&weight.boneIndex,1);
ReadFloats(stream,&weight.weight,1);
pMesh->mBoneWeights.insert(DiSubMesh::BoneWeightList::value_type(weight.vertexIndex, weight));
}
pMesh->SetupBoneWeights();
}
std::vector<int> ColladaParser::ReadInts(const std::string& s, int n)
{
return ReadInts(s.c_str(), n);
}
