mEResult mC3dbReader::Read3dbFileData( mCScene & a_sceneDest, mCIOStreamBinary & a_streamSource )
{
a_sceneDest.Clear();
mCString strSceneName = dynamic_cast< mCFileStream * >( &a_streamSource ) ? g_GetFileNameNoExt( dynamic_cast< mCFileStream * >( &a_streamSource )->GetFileName() ) : "";
if ( a_streamSource.ReadString() != "3db" )
{
MI_ERROR( mCConverterError, EBadFormat, "Invalid .3db file." );
return mEResult_False;
}
MIFloat const f_Angle = a_streamSource.ReadFloat();
MIUInt uChunkCount = a_streamSource.ReadU32();
for ( MIUInt uNextChunk = a_streamSource.Tell(); uChunkCount--; a_streamSource.Seek( uNextChunk ) )
{
EChunkID enuChunkID = static_cast< EChunkID >( a_streamSource.ReadI32() );
MIUInt const uVersionMin = a_streamSource.ReadU32();
uNextChunk += a_streamSource.ReadU32() + 12;
if ( EVersion < uVersionMin )
continue;
switch ( enuChunkID )
{
case EChunkID_Material:
ReadMaterialChunk( a_sceneDest, a_streamSource );
break;
case EChunkID_TexMap:
ReadTexMapChunk( a_sceneDest, a_streamSource );
break;
case EChunkID_Node:
ReadNodeChunk( a_sceneDest, a_streamSource );
break;
case EChunkID_Mesh:
ReadMeshChunk( a_sceneDest, a_streamSource );
break;
case EChunkID_Skin:
ReadSkinChunk( a_sceneDest, a_streamSource );
}
}
if ( f_Angle != -1.0f )
for ( MIUInt u = a_sceneDest.GetNumNodes(); u--; )
if ( a_sceneDest.GetNodeAt( u )->HasMesh() )
a_sceneDest.AccessNodeAt( u )->AccessMesh()->CalcVNormalsByAngle( f_Angle );
a_sceneDest.IdentifyBones();
a_sceneDest.SetName( strSceneName );
return mEResult_Ok;
}
int C3DSLoader::ReadEditChunk(tChunk& pEditChunk)
{
//get a fresh working chunk
tChunk currentChunk={0};
//read the sub chunks until we find the end of the parent chunk
while(pEditChunk.bytesRead < pEditChunk.length)
{
//Read the next chunk
ReadChunk(currentChunk);
switch(currentChunk.ID)
{
case EDIT_MATERIAL:
//cout<<"found Material Chunk"<<endl;
ReadMaterialChunk(currentChunk);
break;
case EDIT_OBJECT:
//cout<<"found Object Chunk"<<endl;
//read the name of the object
char strName[255];
currentChunk.bytesRead+=GetString(strName);
{
C3DMesh mesh(strName);
//We have read in the name of the object
//now we are going to read its data
ReadObjectChunk(currentChunk,mesh);
m_pModel->m_vMeshes.push_back(mesh);
}
break;
default:
currentChunk.bytesRead+=fread(m_iBuffer,1,currentChunk.length-currentChunk.bytesRead,m_FilePointer);
break;
}//end switch
//Just read and discard unknown or unwanted chunks
pEditChunk.bytesRead+=currentChunk.bytesRead;
}//end while
return 0;
}//end ReadEditChunk
mEResult mCMaxReader::ReadInMaxFileData( mCScene & a_sceneDest, mCMaxFileStream & a_streamSource )
{
MIInt const iMinVersion = 1;
MIInt const iVersion = 1;
mCVariant rootVariant;
a_sceneDest.Clear();
if ( a_streamSource.ReadPersistentGlobal( "_extendedSaveData", rootVariant ) != mEResult_Ok )
{
MI_ERROR( mCConverterError, EBadFormat, "Invalid .gmax file. The file might have been saved without Extended Saving enabled." );
return mEResult_False;
}
for ( ; ; )
{
mTArray< mCVariant > arrChunkVariants;
if ( rootVariant.SwapData( arrChunkVariants ) != mEResult_Ok )
break;
for ( MIUInt u = 0, ue = arrChunkVariants.GetCount(); u != ue; ++u )
{
mTArray< mCVariant > arrChunk;
if ( arrChunkVariants[ u ].SwapData( arrChunk ) != mEResult_Ok )
break;
if ( arrChunk.GetCount() < 3 )
break;
MIInt iChunkMinVersion = 0;
MIInt iChunkVersion = 0;
mCString strChunkName;
arrChunk[ 0 ].SwapData( iChunkMinVersion );
arrChunk[ 1 ].SwapData( iChunkVersion );
arrChunk[ 2 ].SwapData( strChunkName );
strChunkName.ToLower();
if ( ( iChunkVersion < iMinVersion ) || ( iVersion < iChunkMinVersion ) )
continue;
if ( strChunkName == "material" )
{
ReadMaterialChunk( arrChunk, a_sceneDest );
}
else if ( strChunkName == "node" )
{
ReadNodeChunk( arrChunk, a_sceneDest );
}
else if ( strChunkName == "mesh" )
{
ReadMeshChunk( arrChunk, a_sceneDest );
}
else if ( strChunkName == "skin" )
{
ReadSkinChunk( arrChunk, a_sceneDest );
}
else
{
break;
}
}
a_sceneDest.IdentifyBones();
a_sceneDest.SetName( g_GetFileNameNoExt( a_streamSource.GetFileName() ) );
mCVariant::CondenseMemory();
return mEResult_Ok;
}
MI_ERROR( mCConverterError, EBadFormat, "Unknown Extended Saving version." );
return mEResult_False;
}