/**************************************************************************** Copyright (c) 2011-2013,WebJet Business Division,CYOU http://www.genesis-3d.com.cn Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ****************************************************************************/ #include "resource/resource_stdneb.h" #include "resource/meshressaver.h" #include "resource/reslable.h" #include "system/byteorder.h" namespace Resources { __ImplementClass(Resources::MeshResSaver,'MRSV',Resources::ResourceSaver); //------------------------------------------------------------------------ MeshResSaver::MeshResSaver() { } //------------------------------------------------------------------------ MeshResSaver::~MeshResSaver() { } //------------------------------------------------------------------------ bool MeshResSaver::SaveResource(Resource* res ) { if ( !res ) return false; if ( res->GetRtti() != &MeshRes::RTTI ) { return false; } GPtr pRes = res; GPtr pMeshRes = pRes.downcast(); n_assert(pMeshRes); if ( !mStream.isvalid() ) { return false; } // Only LOADED resource can be saved if ( pMeshRes->GetState() != Resource::Loaded ) { return false; } GPtr pWriter = IO::BinaryWriter::Create(); n_assert(pWriter.isvalid()); pWriter->SetStream( mStream ); // All files are little endian pWriter->SetStreamByteOrder(System::ByteOrder::LittleEndian); if ( !pWriter->Open() ) { return false; } // save data if ( !SaveMesh(pWriter, pMeshRes) ) { pWriter->Close(); return false; } pWriter->Close(); return true; } //------------------------------------------------------------------------ bool MeshResSaver::SaveMesh(GPtr& pWriter, GPtr& pMesh ) { pWriter->WriteInt(ResLable::L_Mesh); // cur version is 1 pWriter->WriteInt(1); if( !WriteTopology( pWriter, pMesh ) ) { return false; } if ( !WritePosition(pWriter, pMesh ) ) { return false; } if ( !WriteIndex(pWriter, pMesh ) ) { return false; } if ( !WriteColor(pWriter, pMesh ) ) { return false; } if ( !WriteTexCoord(pWriter, pMesh ) ) { return false; } if ( !WriteNormal(pWriter, pMesh ) ) { return false; } if ( !WriteTangent(pWriter, pMesh ) ) { return false; } if ( !WriteBiNormal(pWriter, pMesh ) ) { return false; } if ( !WriteBoneInfo(pWriter, pMesh ) ) { return false; } if ( !WriteSubMesh(pWriter, pMesh ) ) { return false; } pWriter->WriteInt( ResLable::L_End ); return true; } //------------------------------------------------------------------------ bool MeshResSaver::WriteTopology(GPtr& pWriter, GPtr& pMesh ) { pWriter->WriteInt(ResLable::L_Tolopogy); pWriter->WriteInt( (int)pMesh->GetTopologyType() ); const Math::bbox& box = pMesh->GetBoundingBox(); pWriter->WriteFloat( box.pmin.x() ); pWriter->WriteFloat( box.pmin.y() ); pWriter->WriteFloat( box.pmin.z() ); pWriter->WriteFloat( box.pmax.x() ); pWriter->WriteFloat( box.pmax.y() ); pWriter->WriteFloat( box.pmax.z() ); return true; } /// Fast write an array. ElemSize is byte size of element in the array you wish to write, it will check whether ElemSize equals T::value_type in case of mistake. template bool _FastWriteArray(const T& t,GPtr& pWriter) { n_static_assert( sizeof( typename T::value_type ) == ElemSize ); int count = t.Size(); pWriter->WriteInt(count); if( count == 0 ) { return true; } #if __WIN32__ || __ANDROID__ || __OSX__ // need not swap. so can copy memory pWriter->WriteRawData( &t[0], count*sizeof(typename T::value_type) ); return true; #else #error // don't kown if can directly copy now, should impl by Platform #endif } //------------------------------------------------------------------------ bool MeshResSaver::WritePosition(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mPosition.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_Position); // storage type label pWriter->WriteInt(ResLable::S_StdPosition); return _FastWriteArray<12>(pMesh->mPosition, pWriter ); } //------------------------------------------------------------------------ bool MeshResSaver::WriteIndex(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mIndex16.IsEmpty() && pMesh->mIndex32.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_Index); if ( !pMesh->mIndex16.IsEmpty() ) { // storage type label pWriter->WriteInt(ResLable::S_StdIndex16); return _FastWriteArray<2>(pMesh->mIndex16, pWriter ); } else if ( !pMesh->mIndex32.IsEmpty() ) { // storage type label pWriter->WriteInt(ResLable::S_StdIndex32); return _FastWriteArray<4>(pMesh->mIndex32, pWriter ); } return false; } //------------------------------------------------------------------------ bool MeshResSaver::WriteColor(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mColor.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_Color); // storage type label pWriter->WriteInt(ResLable::S_StdColor); return _FastWriteArray<4>(pMesh->mColor, pWriter ); } //------------------------------------------------------------------------ bool MeshResSaver::WriteTexCoord(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mTexCoords.IsEmpty() ) { return true; } bool bOK = true; for ( IndexT i = 0; i < pMesh->mTexCoords.Size(); ++i ) { // data segment label pWriter->WriteInt(ResLable::L_TexCoord); // storage type label pWriter->WriteInt(ResLable::S_StdTexCoord); bOK &= _FastWriteArray<8>(pMesh->mTexCoords[i], pWriter ); } return bOK; } //------------------------------------------------------------------------ bool MeshResSaver::WriteNormal(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mNormal.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_Normal); // storage type label pWriter->WriteInt(ResLable::S_StdNormal); return _FastWriteArray<12>(pMesh->mNormal, pWriter ); } //------------------------------------------------------------------------ bool MeshResSaver::WriteTangent(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mTangent.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_Tangent); // storage type label pWriter->WriteInt(ResLable::S_StdTangent); return _FastWriteArray<16>(pMesh->mTangent, pWriter ); } //------------------------------------------------------------------------ bool MeshResSaver::WriteBiNormal(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mBiNormal.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_BiNormal); // storage type label pWriter->WriteInt(ResLable::S_StdBiNormal); return _FastWriteArray<16>(pMesh->mBiNormal, pWriter ); } //------------------------------------------------------------------------ bool MeshResSaver::WriteBoneInfo(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mBoneInfo.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_BoneInfo); // storage type label pWriter->WriteInt(ResLable::S_StdBoneInfo); return _FastWriteArray<24>(pMesh->mBoneInfo, pWriter ); } //------------------------------------------------------------------------ bool MeshResSaver::WriteSubMesh(GPtr& pWriter, GPtr& pMesh) { if ( pMesh->mSubMeshs.IsEmpty() ) { return true; } // data segment label pWriter->WriteInt(ResLable::L_SubMesh); // storage type label pWriter->WriteInt(ResLable::S_StdSubMesh); SizeT count = pMesh->mSubMeshs.Size(); pWriter->WriteInt(count); for ( int i = 0; i < count; ++i ) { SubMesh& sMesh = pMesh->mSubMeshs[i]; pWriter->WriteInt(sMesh.firstVertex); pWriter->WriteInt(sMesh.numVertex); pWriter->WriteInt(sMesh.FirstIndex); pWriter->WriteInt(sMesh.numIndex); const Math::bbox& box = sMesh.box; pWriter->WriteFloat( box.pmin.x() ); pWriter->WriteFloat( box.pmin.y() ); pWriter->WriteFloat( box.pmin.z() ); pWriter->WriteFloat( box.pmax.x() ); pWriter->WriteFloat( box.pmax.y() ); pWriter->WriteFloat( box.pmax.z() ); } return true; } }