diff options
Diffstat (limited to 'src/3rdparty/assimp/code/PlyLoader.cpp')
| -rw-r--r-- | src/3rdparty/assimp/code/PlyLoader.cpp | 1736 |
1 files changed, 819 insertions, 917 deletions
diff --git a/src/3rdparty/assimp/code/PlyLoader.cpp b/src/3rdparty/assimp/code/PlyLoader.cpp index d4dc2f864..c6e862bf1 100644 --- a/src/3rdparty/assimp/code/PlyLoader.cpp +++ b/src/3rdparty/assimp/code/PlyLoader.cpp @@ -3,7 +3,7 @@ Open Asset Import Library (assimp) --------------------------------------------------------------------------- -Copyright (c) 2006-2016, assimp team +Copyright (c) 2006-2017, assimp team All rights reserved. @@ -12,18 +12,18 @@ with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. +copyright notice, this list of conditions and the +following disclaimer. * Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. +copyright notice, this list of conditions and the +following disclaimer in the documentation and/or other +materials provided with the distribution. * Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. +contributors may be used to endorse or promote products +derived from this software without specific prior +written permission of the assimp team. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT @@ -47,25 +47,26 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // internal headers #include "PlyLoader.h" +#include "IOStreamBuffer.h" #include "Macros.h" #include <memory> #include <assimp/IOSystem.hpp> #include <assimp/scene.h> - +#include <assimp/importerdesc.h> using namespace Assimp; static const aiImporterDesc desc = { - "Stanford Polygon Library (PLY) Importer", - "", - "", - "", - aiImporterFlags_SupportBinaryFlavour | aiImporterFlags_SupportTextFlavour, - 0, - 0, - 0, - 0, - "ply" + "Stanford Polygon Library (PLY) Importer", + "", + "", + "", + aiImporterFlags_SupportBinaryFlavour | aiImporterFlags_SupportTextFlavour, + 0, + 0, + 0, + 0, + "ply" }; @@ -73,1040 +74,941 @@ static const aiImporterDesc desc = { // Internal stuff namespace { - // ------------------------------------------------------------------------------------------------ - // Checks that property index is within range - template <class T> - const T &GetProperty(const std::vector<T> &props, int idx) - { - if( static_cast< size_t >( idx ) >= props.size() ) { - throw DeadlyImportError( "Invalid .ply file: Property index is out of range." ); - } - - return props[idx]; + // ------------------------------------------------------------------------------------------------ + // Checks that property index is within range + template <class T> + const T &GetProperty(const std::vector<T> &props, int idx) + { + if (static_cast<size_t>(idx) >= props.size()) { + throw DeadlyImportError("Invalid .ply file: Property index is out of range."); } + + return props[idx]; + } } // ------------------------------------------------------------------------------------------------ // Constructor to be privately used by Importer PLYImporter::PLYImporter() - : mBuffer(), - pcDOM() -{} + : mBuffer() + , pcDOM() + , mGeneratedMesh(NULL){ + // empty +} // ------------------------------------------------------------------------------------------------ // Destructor, private as well -PLYImporter::~PLYImporter() -{} +PLYImporter::~PLYImporter() { + // empty +} // ------------------------------------------------------------------------------------------------ // Returns whether the class can handle the format of the given file. -bool PLYImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const +bool PLYImporter::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const { - const std::string extension = GetExtension(pFile); - - if (extension == "ply") - return true; - else if (!extension.length() || checkSig) - { - if (!pIOHandler)return true; - const char* tokens[] = {"ply"}; - return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1); - } - return false; + const std::string extension = GetExtension(pFile); + + if (extension == "ply") + return true; + else if (!extension.length() || checkSig) + { + if (!pIOHandler)return true; + const char* tokens[] = { "ply" }; + return SearchFileHeaderForToken(pIOHandler, pFile, tokens, 1); + } + return false; } // ------------------------------------------------------------------------------------------------ -const aiImporterDesc* PLYImporter::GetInfo () const +const aiImporterDesc* PLYImporter::GetInfo() const { - return &desc; + return &desc; } // ------------------------------------------------------------------------------------------------ -static bool isBigEndian( const char* szMe ) { - ai_assert( NULL != szMe ); +static bool isBigEndian(const char* szMe) { + ai_assert(NULL != szMe); - // binary_little_endian - // binary_big_endian - bool isBigEndian( false ); + // binary_little_endian + // binary_big_endian + bool isBigEndian(false); #if (defined AI_BUILD_BIG_ENDIAN) - if ( 'l' == *szMe || 'L' == *szMe ) { - isBigEndian = true; -} + if ( 'l' == *szMe || 'L' == *szMe ) { + isBigEndian = true; + } #else - if ( 'b' == *szMe || 'B' == *szMe ) { - isBigEndian = true; - } + if ('b' == *szMe || 'B' == *szMe) { + isBigEndian = true; + } #endif // ! AI_BUILD_BIG_ENDIAN - return isBigEndian; + return isBigEndian; } // ------------------------------------------------------------------------------------------------ // Imports the given file into the given scene structure. -void PLYImporter::InternReadFile( const std::string& pFile, - aiScene* pScene, IOSystem* pIOHandler) +void PLYImporter::InternReadFile(const std::string& pFile, + aiScene* pScene, IOSystem* pIOHandler) { - std::unique_ptr<IOStream> file( pIOHandler->Open( pFile)); - - // Check whether we can read from the file - if( file.get() == NULL) { - throw DeadlyImportError( "Failed to open PLY file " + pFile + "."); + static const std::string mode = "rb"; + std::unique_ptr<IOStream> fileStream(pIOHandler->Open(pFile, mode)); + if (!fileStream.get()) { + throw DeadlyImportError("Failed to open file " + pFile + "."); + } + + // Get the file-size + size_t fileSize = fileStream->FileSize(); + if ( 0 == fileSize ) { + throw DeadlyImportError("File " + pFile + " is empty."); + } + + IOStreamBuffer<char> streamedBuffer(1024 * 1024); + streamedBuffer.open(fileStream.get()); + + // the beginning of the file must be PLY - magic, magic + std::vector<char> headerCheck; + streamedBuffer.getNextLine(headerCheck); + + if ((headerCheck.size() < 3) || + (headerCheck[0] != 'P' && headerCheck[0] != 'p') || + (headerCheck[1] != 'L' && headerCheck[1] != 'l') || + (headerCheck[2] != 'Y' && headerCheck[2] != 'y') ) + { + streamedBuffer.close(); + throw DeadlyImportError("Invalid .ply file: Magic number \'ply\' is no there"); + } + + std::vector<char> mBuffer2; + streamedBuffer.getNextLine(mBuffer2); + mBuffer = (unsigned char*)&mBuffer2[0]; + + char* szMe = (char*)&this->mBuffer[0]; + SkipSpacesAndLineEnd(szMe, (const char**)&szMe); + + // determine the format of the file data and construct the aimesh + PLY::DOM sPlyDom; + this->pcDOM = &sPlyDom; + + if (TokenMatch(szMe, "format", 6)) { + if (TokenMatch(szMe, "ascii", 5)) { + SkipLine(szMe, (const char**)&szMe); + if (!PLY::DOM::ParseInstance(streamedBuffer, &sPlyDom, this)) + { + if (mGeneratedMesh != NULL) + delete(mGeneratedMesh); + + streamedBuffer.close(); + throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#1)"); + } } + else if (!::strncmp(szMe, "binary_", 7)) + { + szMe += 7; + const bool bIsBE(isBigEndian(szMe)); + + // skip the line, parse the rest of the header and build the DOM + if (!PLY::DOM::ParseInstanceBinary(streamedBuffer, &sPlyDom, this, bIsBE)) + { + if (mGeneratedMesh != NULL) + delete(mGeneratedMesh); + + streamedBuffer.close(); + throw DeadlyImportError("Invalid .ply file: Unable to build DOM (#2)"); + } + } + else + { + if (mGeneratedMesh != NULL) + delete(mGeneratedMesh); - // allocate storage and copy the contents of the file to a memory buffer - std::vector<char> mBuffer2; - TextFileToBuffer(file.get(),mBuffer2); - mBuffer = (unsigned char*)&mBuffer2[0]; + streamedBuffer.close(); + throw DeadlyImportError("Invalid .ply file: Unknown file format"); + } + } + else + { + AI_DEBUG_INVALIDATE_PTR(this->mBuffer); + if (mGeneratedMesh != NULL) + delete(mGeneratedMesh); + + streamedBuffer.close(); + throw DeadlyImportError("Invalid .ply file: Missing format specification"); + } + + //free the file buffer + streamedBuffer.close(); + + if (mGeneratedMesh == NULL) + { + throw DeadlyImportError("Invalid .ply file: Unable to extract mesh data "); + } + + // if no face list is existing we assume that the vertex + // list is containing a list of points + bool pointsOnly = mGeneratedMesh->mFaces == NULL ? true : false; + if (pointsOnly) + { + if (mGeneratedMesh->mNumVertices < 3) + { + if (mGeneratedMesh != NULL) + delete(mGeneratedMesh); - // the beginning of the file must be PLY - magic, magic - if ((mBuffer[0] != 'P' && mBuffer[0] != 'p') || - (mBuffer[1] != 'L' && mBuffer[1] != 'l') || - (mBuffer[2] != 'Y' && mBuffer[2] != 'y')) { - throw DeadlyImportError( "Invalid .ply file: Magic number \'ply\' is no there"); + streamedBuffer.close(); + throw DeadlyImportError("Invalid .ply file: Not enough " + "vertices to build a proper face list. "); } - char* szMe = (char*)&this->mBuffer[3]; - SkipSpacesAndLineEnd(szMe,(const char**)&szMe); - - // determine the format of the file data - PLY::DOM sPlyDom; - if (TokenMatch(szMe,"format",6)) { - if (TokenMatch(szMe,"ascii",5)) { - SkipLine(szMe,(const char**)&szMe); - if(!PLY::DOM::ParseInstance(szMe,&sPlyDom)) - throw DeadlyImportError( "Invalid .ply file: Unable to build DOM (#1)"); - } else if (!::strncmp(szMe,"binary_",7)) - { - szMe += 7; - const bool bIsBE( isBigEndian( szMe ) ); + const unsigned int iNum = (unsigned int)mGeneratedMesh->mNumVertices / 3; + mGeneratedMesh->mNumFaces = iNum; + mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces]; - // skip the line, parse the rest of the header and build the DOM - SkipLine(szMe,(const char**)&szMe); - if ( !PLY::DOM::ParseInstanceBinary( szMe, &sPlyDom, bIsBE ) ) { - throw DeadlyImportError( "Invalid .ply file: Unable to build DOM (#2)" ); - } - } else { - throw DeadlyImportError( "Invalid .ply file: Unknown file format" ); - } - } - else + for (unsigned int i = 0; i < iNum; ++i) { - AI_DEBUG_INVALIDATE_PTR(this->mBuffer); - throw DeadlyImportError( "Invalid .ply file: Missing format specification"); + mGeneratedMesh->mFaces[i].mNumIndices = 3; + mGeneratedMesh->mFaces[i].mIndices = new unsigned int[3]; + mGeneratedMesh->mFaces[i].mIndices[0] = (i * 3); + mGeneratedMesh->mFaces[i].mIndices[1] = (i * 3) + 1; + mGeneratedMesh->mFaces[i].mIndices[2] = (i * 3) + 2; } - this->pcDOM = &sPlyDom; + } + + // now load a list of all materials + std::vector<aiMaterial*> avMaterials; + std::string defaultTexture; + LoadMaterial(&avMaterials, defaultTexture, pointsOnly); + + // now generate the output scene object. Fill the material list + pScene->mNumMaterials = (unsigned int)avMaterials.size(); + pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials]; + for (unsigned int i = 0; i < pScene->mNumMaterials; ++i) { + pScene->mMaterials[i] = avMaterials[i]; + } + + // fill the mesh list + pScene->mNumMeshes = 1; + pScene->mMeshes = new aiMesh*[pScene->mNumMeshes]; + pScene->mMeshes[0] = mGeneratedMesh; + + // generate a simple node structure + pScene->mRootNode = new aiNode(); + pScene->mRootNode->mNumMeshes = pScene->mNumMeshes; + pScene->mRootNode->mMeshes = new unsigned int[pScene->mNumMeshes]; + + for (unsigned int i = 0; i < pScene->mRootNode->mNumMeshes; ++i) { + pScene->mRootNode->mMeshes[i] = i; + } +} - // now load a list of vertices. This must be successfully in order to procedure - std::vector<aiVector3D> avPositions; - this->LoadVertices(&avPositions,false); +void PLYImporter::LoadVertex(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos) { + ai_assert(NULL != pcElement); + ai_assert(NULL != instElement); - if ( avPositions.empty() ) { - throw DeadlyImportError( "Invalid .ply file: No vertices found. " - "Unable to parse the data format of the PLY file." ); - } + ai_uint aiPositions[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }; + PLY::EDataType aiTypes[3] = { EDT_Char, EDT_Char, EDT_Char }; - // now load a list of normals. - std::vector<aiVector3D> avNormals; - LoadVertices(&avNormals,true); + ai_uint aiNormal[3] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }; + PLY::EDataType aiNormalTypes[3] = { EDT_Char, EDT_Char, EDT_Char }; - // load the face list - std::vector<PLY::Face> avFaces; - LoadFaces(&avFaces); + unsigned int aiColors[4] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }; + PLY::EDataType aiColorsTypes[4] = { EDT_Char, EDT_Char, EDT_Char, EDT_Char }; - // if no face list is existing we assume that the vertex - // list is containing a list of triangles - if (avFaces.empty()) - { - if (avPositions.size() < 3) - { - throw DeadlyImportError( "Invalid .ply file: Not enough " - "vertices to build a proper face list. "); + unsigned int aiTexcoord[2] = { 0xFFFFFFFF, 0xFFFFFFFF }; + PLY::EDataType aiTexcoordTypes[2] = { EDT_Char, EDT_Char }; + + // now check whether which normal components are available + unsigned int _a( 0 ), cnt( 0 ); + for ( std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin(); + a != pcElement->alProperties.end(); ++a, ++_a) { + if ((*a).bIsList) { + continue; } - const unsigned int iNum = (unsigned int)avPositions.size() / 3; - for (unsigned int i = 0; i< iNum;++i) - { - PLY::Face sFace; - sFace.mIndices.push_back((iNum*3)); - sFace.mIndices.push_back((iNum*3)+1); - sFace.mIndices.push_back((iNum*3)+2); - avFaces.push_back(sFace); + // Positions + if (PLY::EST_XCoord == (*a).Semantic) { + ++cnt; + aiPositions[0] = _a; + aiTypes[0] = (*a).eType; + } else if (PLY::EST_YCoord == (*a).Semantic) { + ++cnt; + aiPositions[1] = _a; + aiTypes[1] = (*a).eType; + } else if (PLY::EST_ZCoord == (*a).Semantic) { + ++cnt; + aiPositions[2] = _a; + aiTypes[2] = (*a).eType; + } else if (PLY::EST_XNormal == (*a).Semantic) { + // Normals + ++cnt; + aiNormal[0] = _a; + aiNormalTypes[0] = (*a).eType; + } else if (PLY::EST_YNormal == (*a).Semantic) { + ++cnt; + aiNormal[1] = _a; + aiNormalTypes[1] = (*a).eType; + } else if (PLY::EST_ZNormal == (*a).Semantic) { + ++cnt; + aiNormal[2] = _a; + aiNormalTypes[2] = (*a).eType; + } else if (PLY::EST_Red == (*a).Semantic) { + // Colors + ++cnt; + aiColors[0] = _a; + aiColorsTypes[0] = (*a).eType; + } else if (PLY::EST_Green == (*a).Semantic) { + ++cnt; + aiColors[1] = _a; + aiColorsTypes[1] = (*a).eType; + } else if (PLY::EST_Blue == (*a).Semantic) { + ++cnt; + aiColors[2] = _a; + aiColorsTypes[2] = (*a).eType; + } else if (PLY::EST_Alpha == (*a).Semantic) { + ++cnt; + aiColors[3] = _a; + aiColorsTypes[3] = (*a).eType; + } else if (PLY::EST_UTextureCoord == (*a).Semantic) { + // Texture coordinates + ++cnt; + aiTexcoord[0] = _a; + aiTexcoordTypes[0] = (*a).eType; + } else if (PLY::EST_VTextureCoord == (*a).Semantic) { + ++cnt; + aiTexcoord[1] = _a; + aiTexcoordTypes[1] = (*a).eType; } } - // now load a list of all materials - std::vector<aiMaterial*> avMaterials; - LoadMaterial(&avMaterials); + // check whether we have a valid source for the vertex data + if (0 != cnt) { + // Position + aiVector3D vOut; + if (0xFFFFFFFF != aiPositions[0]) { + vOut.x = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiPositions[0]).avList.front(), aiTypes[0]); + } - // now load a list of all vertex color channels - std::vector<aiColor4D> avColors; - avColors.reserve(avPositions.size()); - LoadVertexColor(&avColors); + if (0xFFFFFFFF != aiPositions[1]) { + vOut.y = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiPositions[1]).avList.front(), aiTypes[1]); + } - // now try to load texture coordinates - std::vector<aiVector2D> avTexCoords; - avTexCoords.reserve(avPositions.size()); - LoadTextureCoordinates(&avTexCoords); + if (0xFFFFFFFF != aiPositions[2]) { + vOut.z = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiPositions[2]).avList.front(), aiTypes[2]); + } - // now replace the default material in all faces and validate all material indices - ReplaceDefaultMaterial(&avFaces,&avMaterials); + // Normals + aiVector3D nOut; + bool haveNormal = false; + if (0xFFFFFFFF != aiNormal[0]) { + nOut.x = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiNormal[0]).avList.front(), aiNormalTypes[0]); + haveNormal = true; + } - // now convert this to a list of aiMesh instances - std::vector<aiMesh*> avMeshes; - avMeshes.reserve(avMaterials.size()+1); - ConvertMeshes(&avFaces,&avPositions,&avNormals, - &avColors,&avTexCoords,&avMaterials,&avMeshes); + if (0xFFFFFFFF != aiNormal[1]) { + nOut.y = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiNormal[1]).avList.front(), aiNormalTypes[1]); + haveNormal = true; + } - if ( avMeshes.empty() ) { - throw DeadlyImportError( "Invalid .ply file: Unable to extract mesh data " ); - } + if (0xFFFFFFFF != aiNormal[2]) { + nOut.z = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiNormal[2]).avList.front(), aiNormalTypes[2]); + haveNormal = true; + } - // now generate the output scene object. Fill the material list - pScene->mNumMaterials = (unsigned int)avMaterials.size(); - pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials]; - for ( unsigned int i = 0; i < pScene->mNumMaterials; ++i ) { - pScene->mMaterials[ i ] = avMaterials[ i ]; - } + //Colors + aiColor4D cOut; + bool haveColor = false; + if (0xFFFFFFFF != aiColors[0]) { + cOut.r = NormalizeColorValue(GetProperty(instElement->alProperties, + aiColors[0]).avList.front(), aiColorsTypes[0]); + haveColor = true; + } - // fill the mesh list - pScene->mNumMeshes = (unsigned int)avMeshes.size(); - pScene->mMeshes = new aiMesh*[pScene->mNumMeshes]; - for ( unsigned int i = 0; i < pScene->mNumMeshes; ++i ) { - pScene->mMeshes[ i ] = avMeshes[ i ]; - } + if (0xFFFFFFFF != aiColors[1]) { + cOut.g = NormalizeColorValue(GetProperty(instElement->alProperties, + aiColors[1]).avList.front(), aiColorsTypes[1]); + haveColor = true; + } - // generate a simple node structure - pScene->mRootNode = new aiNode(); - pScene->mRootNode->mNumMeshes = pScene->mNumMeshes; - pScene->mRootNode->mMeshes = new unsigned int[pScene->mNumMeshes]; + if (0xFFFFFFFF != aiColors[2]) { + cOut.b = NormalizeColorValue(GetProperty(instElement->alProperties, + aiColors[2]).avList.front(), aiColorsTypes[2]); + haveColor = true; + } - for ( unsigned int i = 0; i < pScene->mRootNode->mNumMeshes; ++i ) { - pScene->mRootNode->mMeshes[ i ] = i; - } -} + // assume 1.0 for the alpha channel ifit is not set + if (0xFFFFFFFF == aiColors[3]) { + cOut.a = 1.0; + } else { + cOut.a = NormalizeColorValue(GetProperty(instElement->alProperties, + aiColors[3]).avList.front(), aiColorsTypes[3]); -// ------------------------------------------------------------------------------------------------ -// Split meshes by material IDs -void PLYImporter::ConvertMeshes(std::vector<PLY::Face>* avFaces, - const std::vector<aiVector3D>* avPositions, - const std::vector<aiVector3D>* avNormals, - const std::vector<aiColor4D>* avColors, - const std::vector<aiVector2D>* avTexCoords, - const std::vector<aiMaterial*>* avMaterials, - std::vector<aiMesh*>* avOut) -{ - ai_assert(NULL != avFaces); - ai_assert(NULL != avPositions); - ai_assert(NULL != avMaterials); + haveColor = true; + } - // split by materials - std::vector<unsigned int>* aiSplit = new std::vector<unsigned int>[avMaterials->size()]; + //Texture coordinates + aiVector3D tOut; + tOut.z = 0; + bool haveTextureCoords = false; + if (0xFFFFFFFF != aiTexcoord[0]) { + tOut.x = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiTexcoord[0]).avList.front(), aiTexcoordTypes[0]); + haveTextureCoords = true; + } - unsigned int iNum = 0; - for (std::vector<PLY::Face>::const_iterator i = avFaces->begin();i != avFaces->end();++i,++iNum) - aiSplit[(*i).iMaterialIndex].push_back(iNum); + if (0xFFFFFFFF != aiTexcoord[1]) { + tOut.y = PLY::PropertyInstance::ConvertTo<ai_real>( + GetProperty(instElement->alProperties, aiTexcoord[1]).avList.front(), aiTexcoordTypes[1]); + haveTextureCoords = true; + } - // now generate sub-meshes - for (unsigned int p = 0; p < avMaterials->size();++p) - { - if (aiSplit[p].size() != 0) - { - // allocate the mesh object - aiMesh* p_pcOut = new aiMesh(); - p_pcOut->mMaterialIndex = p; + //create aiMesh if needed + if ( nullptr == mGeneratedMesh ) { + mGeneratedMesh = new aiMesh(); + mGeneratedMesh->mMaterialIndex = 0; + } - p_pcOut->mNumFaces = (unsigned int)aiSplit[p].size(); - p_pcOut->mFaces = new aiFace[aiSplit[p].size()]; + if (nullptr == mGeneratedMesh->mVertices) { + mGeneratedMesh->mNumVertices = pcElement->NumOccur; + mGeneratedMesh->mVertices = new aiVector3D[mGeneratedMesh->mNumVertices]; + } - // at first we need to determine the size of the output vector array - unsigned int iNum = 0; - for (unsigned int i = 0; i < aiSplit[p].size();++i) - { - iNum += (unsigned int)(*avFaces)[aiSplit[p][i]].mIndices.size(); - } - p_pcOut->mNumVertices = iNum; - if( 0 == iNum ) { // nothing to do - delete[] aiSplit; // cleanup - delete p_pcOut; - return; - } - p_pcOut->mVertices = new aiVector3D[iNum]; + mGeneratedMesh->mVertices[pos] = vOut; - if (!avColors->empty()) - p_pcOut->mColors[0] = new aiColor4D[iNum]; - if (!avTexCoords->empty()) - { - p_pcOut->mNumUVComponents[0] = 2; - p_pcOut->mTextureCoords[0] = new aiVector3D[iNum]; - } - if (!avNormals->empty()) - p_pcOut->mNormals = new aiVector3D[iNum]; - - // add all faces - iNum = 0; - unsigned int iVertex = 0; - for (std::vector<unsigned int>::const_iterator i = aiSplit[p].begin(); - i != aiSplit[p].end();++i,++iNum) - { - p_pcOut->mFaces[iNum].mNumIndices = (unsigned int)(*avFaces)[*i].mIndices.size(); - p_pcOut->mFaces[iNum].mIndices = new unsigned int[p_pcOut->mFaces[iNum].mNumIndices]; - - // build an unique set of vertices/colors for this face - for (unsigned int q = 0; q < p_pcOut->mFaces[iNum].mNumIndices;++q) - { - p_pcOut->mFaces[iNum].mIndices[q] = iVertex; - const size_t idx = ( *avFaces )[ *i ].mIndices[ q ]; - if( idx >= ( *avPositions ).size() ) { - // out of border - continue; - } - p_pcOut->mVertices[ iVertex ] = ( *avPositions )[ idx ]; - - if (!avColors->empty()) - p_pcOut->mColors[ 0 ][ iVertex ] = ( *avColors )[ idx ]; - - if (!avTexCoords->empty()) - { - const aiVector2D& vec = ( *avTexCoords )[ idx ]; - p_pcOut->mTextureCoords[0][iVertex].x = vec.x; - p_pcOut->mTextureCoords[0][iVertex].y = vec.y; - } - - if (!avNormals->empty()) - p_pcOut->mNormals[ iVertex ] = ( *avNormals )[ idx ]; - iVertex++; - } + if (haveNormal) { + if (nullptr == mGeneratedMesh->mNormals) + mGeneratedMesh->mNormals = new aiVector3D[mGeneratedMesh->mNumVertices]; + mGeneratedMesh->mNormals[pos] = nOut; + } + if (haveColor) { + if (nullptr == mGeneratedMesh->mColors[0]) + mGeneratedMesh->mColors[0] = new aiColor4D[mGeneratedMesh->mNumVertices]; + mGeneratedMesh->mColors[0][pos] = cOut; + } + + if (haveTextureCoords) { + if (nullptr == mGeneratedMesh->mTextureCoords[0]) { + mGeneratedMesh->mNumUVComponents[0] = 2; + mGeneratedMesh->mTextureCoords[0] = new aiVector3D[mGeneratedMesh->mNumVertices]; } - // add the mesh to the output list - avOut->push_back(p_pcOut); + mGeneratedMesh->mTextureCoords[0][pos] = tOut; } } - delete[] aiSplit; // cleanup } + // ------------------------------------------------------------------------------------------------ -// Generate a default material if none was specified and apply it to all vanilla faces -void PLYImporter::ReplaceDefaultMaterial(std::vector<PLY::Face>* avFaces, - std::vector<aiMaterial*>* avMaterials) +// Convert a color component to [0...1] +ai_real PLYImporter::NormalizeColorValue(PLY::PropertyInstance::ValueUnion val, + PLY::EDataType eType) { - bool bNeedDefaultMat = false; + switch (eType) + { + case EDT_Float: + return val.fFloat; + case EDT_Double: + return (ai_real)val.fDouble; + + case EDT_UChar: + return (ai_real)val.iUInt / (ai_real)0xFF; + case EDT_Char: + return (ai_real)(val.iInt + (0xFF / 2)) / (ai_real)0xFF; + case EDT_UShort: + return (ai_real)val.iUInt / (ai_real)0xFFFF; + case EDT_Short: + return (ai_real)(val.iInt + (0xFFFF / 2)) / (ai_real)0xFFFF; + case EDT_UInt: + return (ai_real)val.iUInt / (ai_real)0xFFFF; + case EDT_Int: + return ((ai_real)val.iInt / (ai_real)0xFF) + 0.5f; + default:; + }; + return 0.0f; +} - for (std::vector<PLY::Face>::iterator i = avFaces->begin();i != avFaces->end();++i) { - if (0xFFFFFFFF == (*i).iMaterialIndex) { - bNeedDefaultMat = true; - (*i).iMaterialIndex = (unsigned int)avMaterials->size(); - } - else if ((*i).iMaterialIndex >= avMaterials->size() ) { - // clamp the index - (*i).iMaterialIndex = (unsigned int)avMaterials->size()-1; - } - } +// ------------------------------------------------------------------------------------------------ +// Try to extract proper faces from the PLY DOM +void PLYImporter::LoadFace(const PLY::Element* pcElement, const PLY::ElementInstance* instElement, unsigned int pos) +{ + ai_assert(NULL != pcElement); + ai_assert(NULL != instElement); - if (bNeedDefaultMat) { - // generate a default material - aiMaterial* pcHelper = new aiMaterial(); + if (mGeneratedMesh == NULL) + throw DeadlyImportError("Invalid .ply file: Vertices should be declared before faces"); - // fill in a default material - int iMode = (int)aiShadingMode_Gouraud; - pcHelper->AddProperty<int>(&iMode, 1, AI_MATKEY_SHADING_MODEL); + bool bOne = false; - aiColor3D clr; - clr.b = clr.g = clr.r = 0.6f; - pcHelper->AddProperty<aiColor3D>(&clr, 1,AI_MATKEY_COLOR_DIFFUSE); - pcHelper->AddProperty<aiColor3D>(&clr, 1,AI_MATKEY_COLOR_SPECULAR); + // index of the vertex index list + unsigned int iProperty = 0xFFFFFFFF; + PLY::EDataType eType = EDT_Char; + bool bIsTriStrip = false; - clr.b = clr.g = clr.r = 0.05f; - pcHelper->AddProperty<aiColor3D>(&clr, 1,AI_MATKEY_COLOR_AMBIENT); + // index of the material index property + //unsigned int iMaterialIndex = 0xFFFFFFFF; + //PLY::EDataType eType2 = EDT_Char; - // The face order is absolutely undefined for PLY, so we have to - // use two-sided rendering to be sure it's ok. - const int two_sided = 1; - pcHelper->AddProperty(&two_sided,1,AI_MATKEY_TWOSIDED); + // texture coordinates + unsigned int iTextureCoord = 0xFFFFFFFF; + PLY::EDataType eType3 = EDT_Char; - avMaterials->push_back(pcHelper); + // face = unique number of vertex indices + if (PLY::EEST_Face == pcElement->eSemantic) + { + unsigned int _a = 0; + for (std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin(); + a != pcElement->alProperties.end(); ++a, ++_a) + { + if (PLY::EST_VertexIndex == (*a).Semantic) + { + // must be a dynamic list! + if (!(*a).bIsList) + continue; + + iProperty = _a; + bOne = true; + eType = (*a).eType; + } + /*else if (PLY::EST_MaterialIndex == (*a).Semantic) + { + if ((*a).bIsList) + continue; + iMaterialIndex = _a; + bOne = true; + eType2 = (*a).eType; + }*/ + else if (PLY::EST_TextureCoordinates == (*a).Semantic) + { + // must be a dynamic list! + if (!(*a).bIsList) + continue; + iTextureCoord = _a; + bOne = true; + eType3 = (*a).eType; + } } -} - -// ------------------------------------------------------------------------------------------------ -void PLYImporter::LoadTextureCoordinates(std::vector<aiVector2D>* pvOut) -{ - ai_assert(NULL != pvOut); - - unsigned int aiPositions[2] = {0xFFFFFFFF,0xFFFFFFFF}; - PLY::EDataType aiTypes[2] = {EDT_Char,EDT_Char}; - PLY::ElementInstanceList* pcList = NULL; - unsigned int cnt = 0; - - // serach in the DOM for a vertex entry - unsigned int _i = 0; - for (std::vector<PLY::Element>::const_iterator i = pcDOM->alElements.begin(); - i != pcDOM->alElements.end();++i,++_i) + } + // triangle strip + // TODO: triangle strip and material index support??? + else if (PLY::EEST_TriStrip == pcElement->eSemantic) + { + unsigned int _a = 0; + for (std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin(); + a != pcElement->alProperties.end(); ++a, ++_a) { - if (PLY::EEST_Vertex == (*i).eSemantic) - { - pcList = &this->pcDOM->alElementData[_i]; + // must be a dynamic list! + if (!(*a).bIsList) + continue; + iProperty = _a; + bOne = true; + bIsTriStrip = true; + eType = (*a).eType; + break; + } + } - // now check whether which normal components are available - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - if ((*a).bIsList)continue; - if (PLY::EST_UTextureCoord == (*a).Semantic) - { - cnt++; - aiPositions[0] = _a; - aiTypes[0] = (*a).eType; - } - else if (PLY::EST_VTextureCoord == (*a).Semantic) - { - cnt++; - aiPositions[1] = _a; - aiTypes[1] = (*a).eType; - } - } - } + // check whether we have at least one per-face information set + if (bOne) + { + if (mGeneratedMesh->mFaces == NULL) + { + mGeneratedMesh->mNumFaces = pcElement->NumOccur; + mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces]; } - // check whether we have a valid source for the texture coordinates data - if (NULL != pcList && 0 != cnt) + + if (!bIsTriStrip) { - pvOut->reserve(pcList->alInstances.size()); - for (std::vector<ElementInstance>::const_iterator i = pcList->alInstances.begin(); - i != pcList->alInstances.end();++i) - { - // convert the vertices to sp floats - aiVector2D vOut; + // parse the list of vertex indices + if (0xFFFFFFFF != iProperty) + { + const unsigned int iNum = (unsigned int)GetProperty(instElement->alProperties, iProperty).avList.size(); + mGeneratedMesh->mFaces[pos].mNumIndices = iNum; + mGeneratedMesh->mFaces[pos].mIndices = new unsigned int[iNum]; - if (0xFFFFFFFF != aiPositions[0]) - { - vOut.x = PLY::PropertyInstance::ConvertTo<float>( - GetProperty((*i).alProperties, aiPositions[0]).avList.front(),aiTypes[0]); - } + std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p = + GetProperty(instElement->alProperties, iProperty).avList.begin(); - if (0xFFFFFFFF != aiPositions[1]) - { - vOut.y = PLY::PropertyInstance::ConvertTo<float>( - GetProperty((*i).alProperties, aiPositions[1]).avList.front(),aiTypes[1]); - } - // and add them to our nice list - pvOut->push_back(vOut); + for (unsigned int a = 0; a < iNum; ++a, ++p) + { + mGeneratedMesh->mFaces[pos].mIndices[a] = PLY::PropertyInstance::ConvertTo<unsigned int>(*p, eType); } - } -} + } -// ------------------------------------------------------------------------------------------------ -// Try to extract vertices from the PLY DOM -void PLYImporter::LoadVertices(std::vector<aiVector3D>* pvOut, bool p_bNormals) -{ - ai_assert(NULL != pvOut); + // parse the material index + // cannot be handled without processing the whole file first + /*if (0xFFFFFFFF != iMaterialIndex) + { + mGeneratedMesh->mFaces[pos]. = PLY::PropertyInstance::ConvertTo<unsigned int>( + GetProperty(instElement->alProperties, iMaterialIndex).avList.front(), eType2); + }*/ - unsigned int aiPositions[3] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}; - PLY::EDataType aiTypes[3] = {EDT_Char,EDT_Char,EDT_Char}; - PLY::ElementInstanceList* pcList = NULL; - unsigned int cnt = 0; + if (0xFFFFFFFF != iTextureCoord) + { + const unsigned int iNum = (unsigned int)GetProperty(instElement->alProperties, iTextureCoord).avList.size(); - // search in the DOM for a vertex entry - unsigned int _i = 0; - for (std::vector<PLY::Element>::const_iterator i = pcDOM->alElements.begin(); - i != pcDOM->alElements.end();++i,++_i) - { - if (PLY::EEST_Vertex == (*i).eSemantic) - { - pcList = &pcDOM->alElementData[_i]; + //should be 6 coords + std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p = + GetProperty(instElement->alProperties, iTextureCoord).avList.begin(); - // load normal vectors? - if (p_bNormals) - { - // now check whether which normal components are available - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - if ((*a).bIsList)continue; - if (PLY::EST_XNormal == (*a).Semantic) - { - cnt++; - aiPositions[0] = _a; - aiTypes[0] = (*a).eType; - } - else if (PLY::EST_YNormal == (*a).Semantic) - { - cnt++; - aiPositions[1] = _a; - aiTypes[1] = (*a).eType; - } - else if (PLY::EST_ZNormal == (*a).Semantic) - { - cnt++; - aiPositions[2] = _a; - aiTypes[2] = (*a).eType; - } - } - } - // load vertex coordinates - else + if ((iNum / 3) == 2) // X Y coord + { + for (unsigned int a = 0; a < iNum; ++a, ++p) + { + unsigned int vindex = mGeneratedMesh->mFaces[pos].mIndices[a / 2]; + if (vindex < mGeneratedMesh->mNumVertices) { - // now check whether which coordinate sets are available - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - if ((*a).bIsList)continue; - if (PLY::EST_XCoord == (*a).Semantic) - { - cnt++; - aiPositions[0] = _a; - aiTypes[0] = (*a).eType; - } - else if (PLY::EST_YCoord == (*a).Semantic) - { - cnt++; - aiPositions[1] = _a; - aiTypes[1] = (*a).eType; - } - else if (PLY::EST_ZCoord == (*a).Semantic) - { - cnt++; - aiPositions[2] = _a; - aiTypes[2] = (*a).eType; - } - if (3 == cnt)break; - } + if (mGeneratedMesh->mTextureCoords[0] == NULL) + { + mGeneratedMesh->mNumUVComponents[0] = 2; + mGeneratedMesh->mTextureCoords[0] = new aiVector3D[mGeneratedMesh->mNumVertices]; + } + + if (a % 2 == 0) + mGeneratedMesh->mTextureCoords[0][vindex].x = PLY::PropertyInstance::ConvertTo<ai_real>(*p, eType3); + else + mGeneratedMesh->mTextureCoords[0][vindex].y = PLY::PropertyInstance::ConvertTo<ai_real>(*p, eType3); + + mGeneratedMesh->mTextureCoords[0][vindex].z = 0; } - break; + } } + } } - // check whether we have a valid source for the vertex data - if (NULL != pcList && 0 != cnt) + else // triangle strips { - pvOut->reserve(pcList->alInstances.size()); - for (std::vector<ElementInstance>::const_iterator - i = pcList->alInstances.begin(); - i != pcList->alInstances.end();++i) - { - // convert the vertices to sp floats - aiVector3D vOut; - - if (0xFFFFFFFF != aiPositions[0]) - { - vOut.x = PLY::PropertyInstance::ConvertTo<float>( - GetProperty((*i).alProperties, aiPositions[0]).avList.front(),aiTypes[0]); - } + // normally we have only one triangle strip instance where + // a value of -1 indicates a restart of the strip + bool flip = false; + const std::vector<PLY::PropertyInstance::ValueUnion>& quak = GetProperty(instElement->alProperties, iProperty).avList; + //pvOut->reserve(pvOut->size() + quak.size() + (quak.size()>>2u)); //Limits memory consumption + + int aiTable[2] = { -1, -1 }; + for (std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator a = quak.begin(); a != quak.end(); ++a) { + const int p = PLY::PropertyInstance::ConvertTo<int>(*a, eType); + + if (-1 == p) { + // restart the strip ... + aiTable[0] = aiTable[1] = -1; + flip = false; + continue; + } + if (-1 == aiTable[0]) { + aiTable[0] = p; + continue; + } + if (-1 == aiTable[1]) { + aiTable[1] = p; + continue; + } - if (0xFFFFFFFF != aiPositions[1]) - { - vOut.y = PLY::PropertyInstance::ConvertTo<float>( - GetProperty((*i).alProperties, aiPositions[1]).avList.front(),aiTypes[1]); - } + if (mGeneratedMesh->mFaces == NULL) + { + mGeneratedMesh->mNumFaces = pcElement->NumOccur; + mGeneratedMesh->mFaces = new aiFace[mGeneratedMesh->mNumFaces]; + } - if (0xFFFFFFFF != aiPositions[2]) - { - vOut.z = PLY::PropertyInstance::ConvertTo<float>( - GetProperty((*i).alProperties, aiPositions[2]).avList.front(),aiTypes[2]); - } + mGeneratedMesh->mFaces[pos].mNumIndices = 3; + mGeneratedMesh->mFaces[pos].mIndices = new unsigned int[3]; + mGeneratedMesh->mFaces[pos].mIndices[0] = aiTable[0]; + mGeneratedMesh->mFaces[pos].mIndices[1] = aiTable[1]; + mGeneratedMesh->mFaces[pos].mIndices[2] = p; - // and add them to our nice list - pvOut->push_back(vOut); + if ((flip = !flip)) { + std::swap(mGeneratedMesh->mFaces[pos].mIndices[0], mGeneratedMesh->mFaces[pos].mIndices[1]); } + + aiTable[0] = aiTable[1]; + aiTable[1] = p; + } } + } } // ------------------------------------------------------------------------------------------------ -// Convert a color component to [0...1] -float PLYImporter::NormalizeColorValue (PLY::PropertyInstance::ValueUnion val, - PLY::EDataType eType) +// Get a RGBA color in [0...1] range +void PLYImporter::GetMaterialColor(const std::vector<PLY::PropertyInstance>& avList, + unsigned int aiPositions[4], + PLY::EDataType aiTypes[4], + aiColor4D* clrOut) { - switch (eType) - { - case EDT_Float: - return val.fFloat; - case EDT_Double: - return (float)val.fDouble; - - case EDT_UChar: - return (float)val.iUInt / (float)0xFF; - case EDT_Char: - return (float)(val.iInt+(0xFF/2)) / (float)0xFF; - case EDT_UShort: - return (float)val.iUInt / (float)0xFFFF; - case EDT_Short: - return (float)(val.iInt+(0xFFFF/2)) / (float)0xFFFF; - case EDT_UInt: - return (float)val.iUInt / (float)0xFFFF; - case EDT_Int: - return ((float)val.iInt / (float)0xFF) + 0.5f; - default: ; - }; - return 0.0f; + ai_assert(NULL != clrOut); + + if (0xFFFFFFFF == aiPositions[0])clrOut->r = 0.0f; + else + { + clrOut->r = NormalizeColorValue(GetProperty(avList, + aiPositions[0]).avList.front(), aiTypes[0]); + } + + if (0xFFFFFFFF == aiPositions[1])clrOut->g = 0.0f; + else + { + clrOut->g = NormalizeColorValue(GetProperty(avList, + aiPositions[1]).avList.front(), aiTypes[1]); + } + + if (0xFFFFFFFF == aiPositions[2])clrOut->b = 0.0f; + else + { + clrOut->b = NormalizeColorValue(GetProperty(avList, + aiPositions[2]).avList.front(), aiTypes[2]); + } + + // assume 1.0 for the alpha channel ifit is not set + if (0xFFFFFFFF == aiPositions[3])clrOut->a = 1.0f; + else + { + clrOut->a = NormalizeColorValue(GetProperty(avList, + aiPositions[3]).avList.front(), aiTypes[3]); + } } // ------------------------------------------------------------------------------------------------ -// Try to extract proper vertex colors from the PLY DOM -void PLYImporter::LoadVertexColor(std::vector<aiColor4D>* pvOut) +// Extract a material from the PLY DOM +void PLYImporter::LoadMaterial(std::vector<aiMaterial*>* pvOut, std::string &defaultTexture, const bool pointsOnly) { - ai_assert(NULL != pvOut); - - unsigned int aiPositions[4] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}; - PLY::EDataType aiTypes[4] = {EDT_Char, EDT_Char, EDT_Char, EDT_Char}; // silencing gcc - unsigned int cnt = 0; - PLY::ElementInstanceList* pcList = NULL; - - // serach in the DOM for a vertex entry - unsigned int _i = 0; - for (std::vector<PLY::Element>::const_iterator i = pcDOM->alElements.begin(); - i != pcDOM->alElements.end();++i,++_i) + ai_assert(NULL != pvOut); + + // diffuse[4], specular[4], ambient[4] + // rgba order + unsigned int aaiPositions[3][4] = { + + { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }, + { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }, + { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }, + }; + + PLY::EDataType aaiTypes[3][4] = { + { EDT_Char, EDT_Char, EDT_Char, EDT_Char }, + { EDT_Char, EDT_Char, EDT_Char, EDT_Char }, + { EDT_Char, EDT_Char, EDT_Char, EDT_Char } + }; + PLY::ElementInstanceList* pcList = NULL; + + unsigned int iPhong = 0xFFFFFFFF; + PLY::EDataType ePhong = EDT_Char; + + unsigned int iOpacity = 0xFFFFFFFF; + PLY::EDataType eOpacity = EDT_Char; + + // search in the DOM for a vertex entry + unsigned int _i = 0; + for (std::vector<PLY::Element>::const_iterator i = this->pcDOM->alElements.begin(); + i != this->pcDOM->alElements.end(); ++i, ++_i) + { + if (PLY::EEST_Material == (*i).eSemantic) { - if (PLY::EEST_Vertex == (*i).eSemantic) + pcList = &this->pcDOM->alElementData[_i]; + + // now check whether which coordinate sets are available + unsigned int _a = 0; + for (std::vector<PLY::Property>::const_iterator + a = (*i).alProperties.begin(); + a != (*i).alProperties.end(); ++a, ++_a) + { + if ((*a).bIsList)continue; + + // pohng specularity ----------------------------------- + if (PLY::EST_PhongPower == (*a).Semantic) { - pcList = &this->pcDOM->alElementData[_i]; - - // now check whether which coordinate sets are available - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator - a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - if ((*a).bIsList)continue; - if (PLY::EST_Red == (*a).Semantic) - { - cnt++; - aiPositions[0] = _a; - aiTypes[0] = (*a).eType; - } - else if (PLY::EST_Green == (*a).Semantic) - { - cnt++; - aiPositions[1] = _a; - aiTypes[1] = (*a).eType; - } - else if (PLY::EST_Blue == (*a).Semantic) - { - cnt++; - aiPositions[2] = _a; - aiTypes[2] = (*a).eType; - } - else if (PLY::EST_Alpha == (*a).Semantic) - { - cnt++; - aiPositions[3] = _a; - aiTypes[3] = (*a).eType; - } - if (4 == cnt)break; - } - break; + iPhong = _a; + ePhong = (*a).eType; } - } - // check whether we have a valid source for the vertex data - if (NULL != pcList && 0 != cnt) - { - pvOut->reserve(pcList->alInstances.size()); - for (std::vector<ElementInstance>::const_iterator i = pcList->alInstances.begin(); - i != pcList->alInstances.end();++i) - { - // convert the vertices to sp floats - aiColor4D vOut; - if (0xFFFFFFFF != aiPositions[0]) - { - vOut.r = NormalizeColorValue(GetProperty((*i).alProperties, - aiPositions[0]).avList.front(),aiTypes[0]); - } - - if (0xFFFFFFFF != aiPositions[1]) - { - vOut.g = NormalizeColorValue(GetProperty((*i).alProperties, - aiPositions[1]).avList.front(),aiTypes[1]); - } - - if (0xFFFFFFFF != aiPositions[2]) - { - vOut.b = NormalizeColorValue(GetProperty((*i).alProperties, - aiPositions[2]).avList.front(),aiTypes[2]); - } - - // assume 1.0 for the alpha channel ifit is not set - if (0xFFFFFFFF == aiPositions[3])vOut.a = 1.0f; - else - { - vOut.a = NormalizeColorValue(GetProperty((*i).alProperties, - aiPositions[3]).avList.front(),aiTypes[3]); - } - - // and add them to our nice list - pvOut->push_back(vOut); + // general opacity ----------------------------------- + if (PLY::EST_Opacity == (*a).Semantic) + { + iOpacity = _a; + eOpacity = (*a).eType; } - } -} - -// ------------------------------------------------------------------------------------------------ -// Try to extract proper faces from the PLY DOM -void PLYImporter::LoadFaces(std::vector<PLY::Face>* pvOut) -{ - ai_assert(NULL != pvOut); - - PLY::ElementInstanceList* pcList = NULL; - bool bOne = false; - // index of the vertex index list - unsigned int iProperty = 0xFFFFFFFF; - PLY::EDataType eType = EDT_Char; - bool bIsTristrip = false; - - // index of the material index property - unsigned int iMaterialIndex = 0xFFFFFFFF; - PLY::EDataType eType2 = EDT_Char; - - // serach in the DOM for a face entry - unsigned int _i = 0; - for (std::vector<PLY::Element>::const_iterator i = pcDOM->alElements.begin(); - i != pcDOM->alElements.end();++i,++_i) - { - // face = unique number of vertex indices - if (PLY::EEST_Face == (*i).eSemantic) + // diffuse color channels ----------------------------------- + if (PLY::EST_DiffuseRed == (*a).Semantic) { - pcList = &pcDOM->alElementData[_i]; - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - if (PLY::EST_VertexIndex == (*a).Semantic) - { - // must be a dynamic list! - if (!(*a).bIsList)continue; - iProperty = _a; - bOne = true; - eType = (*a).eType; - } - else if (PLY::EST_MaterialIndex == (*a).Semantic) - { - if ((*a).bIsList)continue; - iMaterialIndex = _a; - bOne = true; - eType2 = (*a).eType; - } - } - break; + aaiPositions[0][0] = _a; + aaiTypes[0][0] = (*a).eType; } - // triangle strip - // TODO: triangle strip and material index support??? - else if (PLY::EEST_TriStrip == (*i).eSemantic) + else if (PLY::EST_DiffuseGreen == (*a).Semantic) { - // find a list property in this ... - pcList = &this->pcDOM->alElementData[_i]; - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - // must be a dynamic list! - if (!(*a).bIsList)continue; - iProperty = _a; - bOne = true; - bIsTristrip = true; - eType = (*a).eType; - break; - } - break; + aaiPositions[0][1] = _a; + aaiTypes[0][1] = (*a).eType; } - } - // check whether we have at least one per-face information set - if (pcList && bOne) - { - if (!bIsTristrip) + else if (PLY::EST_DiffuseBlue == (*a).Semantic) { - pvOut->reserve(pcList->alInstances.size()); - for (std::vector<ElementInstance>::const_iterator i = pcList->alInstances.begin(); - i != pcList->alInstances.end();++i) - { - PLY::Face sFace; - - // parse the list of vertex indices - if (0xFFFFFFFF != iProperty) - { - const unsigned int iNum = (unsigned int)GetProperty((*i).alProperties, iProperty).avList.size(); - sFace.mIndices.resize(iNum); - - std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator p = - GetProperty((*i).alProperties, iProperty).avList.begin(); - - for (unsigned int a = 0; a < iNum;++a,++p) - { - sFace.mIndices[a] = PLY::PropertyInstance::ConvertTo<unsigned int>(*p,eType); - } - } - - // parse the material index - if (0xFFFFFFFF != iMaterialIndex) - { - sFace.iMaterialIndex = PLY::PropertyInstance::ConvertTo<unsigned int>( - GetProperty((*i).alProperties, iMaterialIndex).avList.front(),eType2); - } - pvOut->push_back(sFace); - } + aaiPositions[0][2] = _a; + aaiTypes[0][2] = (*a).eType; } - else // triangle strips + else if (PLY::EST_DiffuseAlpha == (*a).Semantic) { - // normally we have only one triangle strip instance where - // a value of -1 indicates a restart of the strip - bool flip = false; - for (std::vector<ElementInstance>::const_iterator i = pcList->alInstances.begin();i != pcList->alInstances.end();++i) { - const std::vector<PLY::PropertyInstance::ValueUnion>& quak = GetProperty((*i).alProperties, iProperty).avList; - pvOut->reserve(pvOut->size() + quak.size() + (quak.size()>>2u)); - - int aiTable[2] = {-1,-1}; - for (std::vector<PLY::PropertyInstance::ValueUnion>::const_iterator a = quak.begin();a != quak.end();++a) { - const int p = PLY::PropertyInstance::ConvertTo<int>(*a,eType); - - if (-1 == p) { - // restart the strip ... - aiTable[0] = aiTable[1] = -1; - flip = false; - continue; - } - if (-1 == aiTable[0]) { - aiTable[0] = p; - continue; - } - if (-1 == aiTable[1]) { - aiTable[1] = p; - continue; - } - - pvOut->push_back(PLY::Face()); - PLY::Face& sFace = pvOut->back(); - sFace.mIndices[0] = aiTable[0]; - sFace.mIndices[1] = aiTable[1]; - sFace.mIndices[2] = p; - if ((flip = !flip)) { - std::swap(sFace.mIndices[0],sFace.mIndices[1]); - } - - aiTable[0] = aiTable[1]; - aiTable[1] = p; - } - } + aaiPositions[0][3] = _a; + aaiTypes[0][3] = (*a).eType; + } + // specular color channels ----------------------------------- + else if (PLY::EST_SpecularRed == (*a).Semantic) + { + aaiPositions[1][0] = _a; + aaiTypes[1][0] = (*a).eType; + } + else if (PLY::EST_SpecularGreen == (*a).Semantic) + { + aaiPositions[1][1] = _a; + aaiTypes[1][1] = (*a).eType; + } + else if (PLY::EST_SpecularBlue == (*a).Semantic) + { + aaiPositions[1][2] = _a; + aaiTypes[1][2] = (*a).eType; + } + else if (PLY::EST_SpecularAlpha == (*a).Semantic) + { + aaiPositions[1][3] = _a; + aaiTypes[1][3] = (*a).eType; } + // ambient color channels ----------------------------------- + else if (PLY::EST_AmbientRed == (*a).Semantic) + { + aaiPositions[2][0] = _a; + aaiTypes[2][0] = (*a).eType; + } + else if (PLY::EST_AmbientGreen == (*a).Semantic) + { + aaiPositions[2][1] = _a; + aaiTypes[2][1] = (*a).eType; + } + else if (PLY::EST_AmbientBlue == (*a).Semantic) + { + aaiPositions[2][2] = _a; + aaiTypes[2][2] = (*a).eType; + } + else if (PLY::EST_AmbientAlpha == (*a).Semantic) + { + aaiPositions[2][3] = _a; + aaiTypes[2][3] = (*a).eType; + } + } + break; } -} - -// ------------------------------------------------------------------------------------------------ -// Get a RGBA color in [0...1] range -void PLYImporter::GetMaterialColor(const std::vector<PLY::PropertyInstance>& avList, - unsigned int aiPositions[4], - PLY::EDataType aiTypes[4], - aiColor4D* clrOut) -{ - ai_assert(NULL != clrOut); - - if (0xFFFFFFFF == aiPositions[0])clrOut->r = 0.0f; - else + else if (PLY::EEST_TextureFile == (*i).eSemantic) { - clrOut->r = NormalizeColorValue(GetProperty(avList, - aiPositions[0]).avList.front(),aiTypes[0]); + defaultTexture = (*i).szName; } - - if (0xFFFFFFFF == aiPositions[1])clrOut->g = 0.0f; - else - { - clrOut->g = NormalizeColorValue(GetProperty(avList, - aiPositions[1]).avList.front(),aiTypes[1]); + } + // check whether we have a valid source for the material data + if (NULL != pcList) { + for (std::vector<ElementInstance>::const_iterator i = pcList->alInstances.begin(); i != pcList->alInstances.end(); ++i) { + aiColor4D clrOut; + aiMaterial* pcHelper = new aiMaterial(); + + // build the diffuse material color + GetMaterialColor((*i).alProperties, aaiPositions[0], aaiTypes[0], &clrOut); + pcHelper->AddProperty<aiColor4D>(&clrOut, 1, AI_MATKEY_COLOR_DIFFUSE); + + // build the specular material color + GetMaterialColor((*i).alProperties, aaiPositions[1], aaiTypes[1], &clrOut); + pcHelper->AddProperty<aiColor4D>(&clrOut, 1, AI_MATKEY_COLOR_SPECULAR); + + // build the ambient material color + GetMaterialColor((*i).alProperties, aaiPositions[2], aaiTypes[2], &clrOut); + pcHelper->AddProperty<aiColor4D>(&clrOut, 1, AI_MATKEY_COLOR_AMBIENT); + + // handle phong power and shading mode + int iMode = (int)aiShadingMode_Gouraud; + if (0xFFFFFFFF != iPhong) { + ai_real fSpec = PLY::PropertyInstance::ConvertTo<ai_real>(GetProperty((*i).alProperties, iPhong).avList.front(), ePhong); + + // if shininess is 0 (and the pow() calculation would therefore always + // become 1, not depending on the angle), use gouraud lighting + if (fSpec) { + // scale this with 15 ... hopefully this is correct + fSpec *= 15; + pcHelper->AddProperty<ai_real>(&fSpec, 1, AI_MATKEY_SHININESS); + + iMode = (int)aiShadingMode_Phong; + } + } + pcHelper->AddProperty<int>(&iMode, 1, AI_MATKEY_SHADING_MODEL); + + // handle opacity + if (0xFFFFFFFF != iOpacity) { + ai_real fOpacity = PLY::PropertyInstance::ConvertTo<ai_real>(GetProperty((*i).alProperties, iPhong).avList.front(), eOpacity); + pcHelper->AddProperty<ai_real>(&fOpacity, 1, AI_MATKEY_OPACITY); + } + + // The face order is absolutely undefined for PLY, so we have to + // use two-sided rendering to be sure it's ok. + const int two_sided = 1; + pcHelper->AddProperty(&two_sided, 1, AI_MATKEY_TWOSIDED); + + //default texture + if (!defaultTexture.empty()) + { + const aiString name(defaultTexture.c_str()); + pcHelper->AddProperty(&name, _AI_MATKEY_TEXTURE_BASE, aiTextureType_DIFFUSE, 0); + } + + if (!pointsOnly) + { + const int two_sided = 1; + pcHelper->AddProperty(&two_sided, 1, AI_MATKEY_TWOSIDED); + } + + //set to wireframe, so when using this material info we can switch to points rendering + if (pointsOnly) + { + const int wireframe = 1; + pcHelper->AddProperty(&wireframe, 1, AI_MATKEY_ENABLE_WIREFRAME); + } + + // add the newly created material instance to the list + pvOut->push_back(pcHelper); } - - if (0xFFFFFFFF == aiPositions[2])clrOut->b = 0.0f; - else + } + else + { + // generate a default material + aiMaterial* pcHelper = new aiMaterial(); + + // fill in a default material + int iMode = (int)aiShadingMode_Gouraud; + pcHelper->AddProperty<int>(&iMode, 1, AI_MATKEY_SHADING_MODEL); + + //generate white material most 3D engine just multiply ambient / diffuse color with actual ambient / light color + aiColor3D clr; + clr.b = clr.g = clr.r = 1.0f; + pcHelper->AddProperty<aiColor3D>(&clr, 1, AI_MATKEY_COLOR_DIFFUSE); + pcHelper->AddProperty<aiColor3D>(&clr, 1, AI_MATKEY_COLOR_SPECULAR); + + clr.b = clr.g = clr.r = 1.0f; + pcHelper->AddProperty<aiColor3D>(&clr, 1, AI_MATKEY_COLOR_AMBIENT); + + // The face order is absolutely undefined for PLY, so we have to + // use two-sided rendering to be sure it's ok. + if (!pointsOnly) { - clrOut->b = NormalizeColorValue(GetProperty(avList, - aiPositions[2]).avList.front(),aiTypes[2]); + const int two_sided = 1; + pcHelper->AddProperty(&two_sided, 1, AI_MATKEY_TWOSIDED); } - // assume 1.0 for the alpha channel ifit is not set - if (0xFFFFFFFF == aiPositions[3])clrOut->a = 1.0f; - else + //default texture + if (!defaultTexture.empty()) { - clrOut->a = NormalizeColorValue(GetProperty(avList, - aiPositions[3]).avList.front(),aiTypes[3]); + const aiString name(defaultTexture.c_str()); + pcHelper->AddProperty(&name, _AI_MATKEY_TEXTURE_BASE, aiTextureType_DIFFUSE, 0); } -} -// ------------------------------------------------------------------------------------------------ -// Extract a material from the PLY DOM -void PLYImporter::LoadMaterial(std::vector<aiMaterial*>* pvOut) -{ - ai_assert(NULL != pvOut); - - // diffuse[4], specular[4], ambient[4] - // rgba order - unsigned int aaiPositions[3][4] = { - - {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}, - {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}, - {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF}, - }; - - PLY::EDataType aaiTypes[3][4] = { - {EDT_Char,EDT_Char,EDT_Char,EDT_Char}, - {EDT_Char,EDT_Char,EDT_Char,EDT_Char}, - {EDT_Char,EDT_Char,EDT_Char,EDT_Char} - }; - PLY::ElementInstanceList* pcList = NULL; - - unsigned int iPhong = 0xFFFFFFFF; - PLY::EDataType ePhong = EDT_Char; - - unsigned int iOpacity = 0xFFFFFFFF; - PLY::EDataType eOpacity = EDT_Char; - - // serach in the DOM for a vertex entry - unsigned int _i = 0; - for (std::vector<PLY::Element>::const_iterator i = this->pcDOM->alElements.begin(); - i != this->pcDOM->alElements.end();++i,++_i) + //set to wireframe, so when using this material info we can switch to points rendering + if (pointsOnly) { - if (PLY::EEST_Material == (*i).eSemantic) - { - pcList = &this->pcDOM->alElementData[_i]; - - // now check whether which coordinate sets are available - unsigned int _a = 0; - for (std::vector<PLY::Property>::const_iterator - a = (*i).alProperties.begin(); - a != (*i).alProperties.end();++a,++_a) - { - if ((*a).bIsList)continue; - - // pohng specularity ----------------------------------- - if (PLY::EST_PhongPower == (*a).Semantic) - { - iPhong = _a; - ePhong = (*a).eType; - } - - // general opacity ----------------------------------- - if (PLY::EST_Opacity == (*a).Semantic) - { - iOpacity = _a; - eOpacity = (*a).eType; - } - - // diffuse color channels ----------------------------------- - if (PLY::EST_DiffuseRed == (*a).Semantic) - { - aaiPositions[0][0] = _a; - aaiTypes[0][0] = (*a).eType; - } - else if (PLY::EST_DiffuseGreen == (*a).Semantic) - { - aaiPositions[0][1] = _a; - aaiTypes[0][1] = (*a).eType; - } - else if (PLY::EST_DiffuseBlue == (*a).Semantic) - { - aaiPositions[0][2] = _a; - aaiTypes[0][2] = (*a).eType; - } - else if (PLY::EST_DiffuseAlpha == (*a).Semantic) - { - aaiPositions[0][3] = _a; - aaiTypes[0][3] = (*a).eType; - } - // specular color channels ----------------------------------- - else if (PLY::EST_SpecularRed == (*a).Semantic) - { - aaiPositions[1][0] = _a; - aaiTypes[1][0] = (*a).eType; - } - else if (PLY::EST_SpecularGreen == (*a).Semantic) - { - aaiPositions[1][1] = _a; - aaiTypes[1][1] = (*a).eType; - } - else if (PLY::EST_SpecularBlue == (*a).Semantic) - { - aaiPositions[1][2] = _a; - aaiTypes[1][2] = (*a).eType; - } - else if (PLY::EST_SpecularAlpha == (*a).Semantic) - { - aaiPositions[1][3] = _a; - aaiTypes[1][3] = (*a).eType; - } - // ambient color channels ----------------------------------- - else if (PLY::EST_AmbientRed == (*a).Semantic) - { - aaiPositions[2][0] = _a; - aaiTypes[2][0] = (*a).eType; - } - else if (PLY::EST_AmbientGreen == (*a).Semantic) - { - aaiPositions[2][1] = _a; - aaiTypes[2][1] = (*a).eType; - } - else if (PLY::EST_AmbientBlue == (*a).Semantic) - { - aaiPositions[2][2] = _a; - aaiTypes[2][2] = (*a).eType; - } - else if (PLY::EST_AmbientAlpha == (*a).Semantic) - { - aaiPositions[2][3] = _a; - aaiTypes[2][3] = (*a).eType; - } - } - break; - } + const int wireframe = 1; + pcHelper->AddProperty(&wireframe, 1, AI_MATKEY_ENABLE_WIREFRAME); } - // check whether we have a valid source for the material data - if (NULL != pcList) { - for (std::vector<ElementInstance>::const_iterator i = pcList->alInstances.begin();i != pcList->alInstances.end();++i) { - aiColor4D clrOut; - aiMaterial* pcHelper = new aiMaterial(); - - // build the diffuse material color - GetMaterialColor((*i).alProperties,aaiPositions[0],aaiTypes[0],&clrOut); - pcHelper->AddProperty<aiColor4D>(&clrOut,1,AI_MATKEY_COLOR_DIFFUSE); - - // build the specular material color - GetMaterialColor((*i).alProperties,aaiPositions[1],aaiTypes[1],&clrOut); - pcHelper->AddProperty<aiColor4D>(&clrOut,1,AI_MATKEY_COLOR_SPECULAR); - - // build the ambient material color - GetMaterialColor((*i).alProperties,aaiPositions[2],aaiTypes[2],&clrOut); - pcHelper->AddProperty<aiColor4D>(&clrOut,1,AI_MATKEY_COLOR_AMBIENT); - - // handle phong power and shading mode - int iMode; - if (0xFFFFFFFF != iPhong) { - float fSpec = PLY::PropertyInstance::ConvertTo<float>(GetProperty((*i).alProperties, iPhong).avList.front(),ePhong); - - // if shininess is 0 (and the pow() calculation would therefore always - // become 1, not depending on the angle), use gouraud lighting - if (fSpec) { - // scale this with 15 ... hopefully this is correct - fSpec *= 15; - pcHelper->AddProperty<float>(&fSpec, 1, AI_MATKEY_SHININESS); - - iMode = (int)aiShadingMode_Phong; - } - else iMode = (int)aiShadingMode_Gouraud; - } - else iMode = (int)aiShadingMode_Gouraud; - pcHelper->AddProperty<int>(&iMode, 1, AI_MATKEY_SHADING_MODEL); - - // handle opacity - if (0xFFFFFFFF != iOpacity) { - float fOpacity = PLY::PropertyInstance::ConvertTo<float>(GetProperty((*i).alProperties, iPhong).avList.front(),eOpacity); - pcHelper->AddProperty<float>(&fOpacity, 1, AI_MATKEY_OPACITY); - } - // The face order is absolutely undefined for PLY, so we have to - // use two-sided rendering to be sure it's ok. - const int two_sided = 1; - pcHelper->AddProperty(&two_sided,1,AI_MATKEY_TWOSIDED); - - // add the newly created material instance to the list - pvOut->push_back(pcHelper); - } - } + pvOut->push_back(pcHelper); + } } #endif // !! ASSIMP_BUILD_NO_PLY_IMPORTER |