add assimp submodule

1 files changed, 963 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/code/AssetLib/Ply/PlyParser.cpp b/src/mesh/assimp-master/code/AssetLib/Ply/PlyParser.cpp
new file mode 100644
index 0000000..df93d5a
--- /dev/null
+++ b/src/mesh/assimp-master/code/AssetLib/Ply/PlyParser.cpp
@@ -0,0 +1,963 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+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.
+
+* 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.
+
+* 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.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Implementation of the PLY parser class */
+
+#ifndef ASSIMP_BUILD_NO_PLY_IMPORTER
+
+#include "PlyLoader.h"
+#include <assimp/ByteSwapper.h>
+#include <assimp/fast_atof.h>
+#include <assimp/DefaultLogger.hpp>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+PLY::EDataType PLY::Property::ParseDataType(std::vector<char> &buffer) {
+    ai_assert(!buffer.empty());
+
+    PLY::EDataType eOut = PLY::EDT_INVALID;
+
+    if (PLY::DOM::TokenMatch(buffer, "char", 4) ||
+            PLY::DOM::TokenMatch(buffer, "int8", 4)) {
+        eOut = PLY::EDT_Char;
+    } else if (PLY::DOM::TokenMatch(buffer, "uchar", 5) ||
+               PLY::DOM::TokenMatch(buffer, "uint8", 5)) {
+        eOut = PLY::EDT_UChar;
+    } else if (PLY::DOM::TokenMatch(buffer, "short", 5) ||
+               PLY::DOM::TokenMatch(buffer, "int16", 5)) {
+        eOut = PLY::EDT_Short;
+    } else if (PLY::DOM::TokenMatch(buffer, "ushort", 6) ||
+               PLY::DOM::TokenMatch(buffer, "uint16", 6)) {
+        eOut = PLY::EDT_UShort;
+    } else if (PLY::DOM::TokenMatch(buffer, "int32", 5) || PLY::DOM::TokenMatch(buffer, "int", 3)) {
+        eOut = PLY::EDT_Int;
+    } else if (PLY::DOM::TokenMatch(buffer, "uint32", 6) || PLY::DOM::TokenMatch(buffer, "uint", 4)) {
+        eOut = PLY::EDT_UInt;
+    } else if (PLY::DOM::TokenMatch(buffer, "float", 5) || PLY::DOM::TokenMatch(buffer, "float32", 7)) {
+        eOut = PLY::EDT_Float;
+    } else if (PLY::DOM::TokenMatch(buffer, "double64", 8) || PLY::DOM::TokenMatch(buffer, "double", 6) ||
+               PLY::DOM::TokenMatch(buffer, "float64", 7)) {
+        eOut = PLY::EDT_Double;
+    }
+    if (PLY::EDT_INVALID == eOut) {
+        ASSIMP_LOG_INFO("Found unknown data type in PLY file. This is OK");
+    }
+
+    return eOut;
+}
+
+// ------------------------------------------------------------------------------------------------
+PLY::ESemantic PLY::Property::ParseSemantic(std::vector<char> &buffer) {
+    ai_assert(!buffer.empty());
+
+    PLY::ESemantic eOut = PLY::EST_INVALID;
+    if (PLY::DOM::TokenMatch(buffer, "red", 3)) {
+        eOut = PLY::EST_Red;
+    } else if (PLY::DOM::TokenMatch(buffer, "green", 5)) {
+        eOut = PLY::EST_Green;
+    } else if (PLY::DOM::TokenMatch(buffer, "blue", 4)) {
+        eOut = PLY::EST_Blue;
+    } else if (PLY::DOM::TokenMatch(buffer, "alpha", 5)) {
+        eOut = PLY::EST_Alpha;
+    } else if (PLY::DOM::TokenMatch(buffer, "vertex_index", 12) || PLY::DOM::TokenMatch(buffer, "vertex_indices", 14)) {
+        eOut = PLY::EST_VertexIndex;
+    } else if (PLY::DOM::TokenMatch(buffer, "texcoord", 8)) // Manage uv coords on faces
+    {
+        eOut = PLY::EST_TextureCoordinates;
+    } else if (PLY::DOM::TokenMatch(buffer, "material_index", 14)) {
+        eOut = PLY::EST_MaterialIndex;
+    } else if (PLY::DOM::TokenMatch(buffer, "ambient_red", 11)) {
+        eOut = PLY::EST_AmbientRed;
+    } else if (PLY::DOM::TokenMatch(buffer, "ambient_green", 13)) {
+        eOut = PLY::EST_AmbientGreen;
+    } else if (PLY::DOM::TokenMatch(buffer, "ambient_blue", 12)) {
+        eOut = PLY::EST_AmbientBlue;
+    } else if (PLY::DOM::TokenMatch(buffer, "ambient_alpha", 13)) {
+        eOut = PLY::EST_AmbientAlpha;
+    } else if (PLY::DOM::TokenMatch(buffer, "diffuse_red", 11)) {
+        eOut = PLY::EST_DiffuseRed;
+    } else if (PLY::DOM::TokenMatch(buffer, "diffuse_green", 13)) {
+        eOut = PLY::EST_DiffuseGreen;
+    } else if (PLY::DOM::TokenMatch(buffer, "diffuse_blue", 12)) {
+        eOut = PLY::EST_DiffuseBlue;
+    } else if (PLY::DOM::TokenMatch(buffer, "diffuse_alpha", 13)) {
+        eOut = PLY::EST_DiffuseAlpha;
+    } else if (PLY::DOM::TokenMatch(buffer, "specular_red", 12)) {
+        eOut = PLY::EST_SpecularRed;
+    } else if (PLY::DOM::TokenMatch(buffer, "specular_green", 14)) {
+        eOut = PLY::EST_SpecularGreen;
+    } else if (PLY::DOM::TokenMatch(buffer, "specular_blue", 13)) {
+        eOut = PLY::EST_SpecularBlue;
+    } else if (PLY::DOM::TokenMatch(buffer, "specular_alpha", 14)) {
+        eOut = PLY::EST_SpecularAlpha;
+    } else if (PLY::DOM::TokenMatch(buffer, "opacity", 7)) {
+        eOut = PLY::EST_Opacity;
+    } else if (PLY::DOM::TokenMatch(buffer, "specular_power", 14)) {
+        eOut = PLY::EST_PhongPower;
+    } else if (PLY::DOM::TokenMatch(buffer, "r", 1)) {
+        eOut = PLY::EST_Red;
+    } else if (PLY::DOM::TokenMatch(buffer, "g", 1)) {
+        eOut = PLY::EST_Green;
+    } else if (PLY::DOM::TokenMatch(buffer, "b", 1)) {
+        eOut = PLY::EST_Blue;
+    }
+
+    // NOTE: Blender3D exports texture coordinates as s,t tuples
+    else if (PLY::DOM::TokenMatch(buffer, "u", 1) || PLY::DOM::TokenMatch(buffer, "s", 1) || PLY::DOM::TokenMatch(buffer, "tx", 2) || PLY::DOM::TokenMatch(buffer, "texture_u", 9)) {
+        eOut = PLY::EST_UTextureCoord;
+    } else if (PLY::DOM::TokenMatch(buffer, "v", 1) || PLY::DOM::TokenMatch(buffer, "t", 1) || PLY::DOM::TokenMatch(buffer, "ty", 2) || PLY::DOM::TokenMatch(buffer, "texture_v", 9)) {
+        eOut = PLY::EST_VTextureCoord;
+    } else if (PLY::DOM::TokenMatch(buffer, "x", 1)) {
+        eOut = PLY::EST_XCoord;
+    } else if (PLY::DOM::TokenMatch(buffer, "y", 1)) {
+        eOut = PLY::EST_YCoord;
+    } else if (PLY::DOM::TokenMatch(buffer, "z", 1)) {
+        eOut = PLY::EST_ZCoord;
+    } else if (PLY::DOM::TokenMatch(buffer, "nx", 2)) {
+        eOut = PLY::EST_XNormal;
+    } else if (PLY::DOM::TokenMatch(buffer, "ny", 2)) {
+        eOut = PLY::EST_YNormal;
+    } else if (PLY::DOM::TokenMatch(buffer, "nz", 2)) {
+        eOut = PLY::EST_ZNormal;
+    } else {
+        ASSIMP_LOG_INFO("Found unknown property semantic in file. This is ok");
+        PLY::DOM::SkipLine(buffer);
+    }
+    return eOut;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::Property::ParseProperty(std::vector<char> &buffer, PLY::Property *pOut) {
+    ai_assert(!buffer.empty());
+
+    // Forms supported:
+    // "property float x"
+    // "property list uchar int vertex_index"
+
+    // skip leading spaces
+    if (!PLY::DOM::SkipSpaces(buffer)) {
+        return false;
+    }
+
+    // skip the "property" string at the beginning
+    if (!PLY::DOM::TokenMatch(buffer, "property", 8)) {
+        // seems not to be a valid property entry
+        return false;
+    }
+    // get next word
+    if (!PLY::DOM::SkipSpaces(buffer)) {
+        return false;
+    }
+    if (PLY::DOM::TokenMatch(buffer, "list", 4)) {
+        pOut->bIsList = true;
+
+        // seems to be a list.
+        if (EDT_INVALID == (pOut->eFirstType = PLY::Property::ParseDataType(buffer))) {
+            // unable to parse list size data type
+            PLY::DOM::SkipLine(buffer);
+            return false;
+        }
+        if (!PLY::DOM::SkipSpaces(buffer)) return false;
+        if (EDT_INVALID == (pOut->eType = PLY::Property::ParseDataType(buffer))) {
+            // unable to parse list data type
+            PLY::DOM::SkipLine(buffer);
+            return false;
+        }
+    } else {
+        if (EDT_INVALID == (pOut->eType = PLY::Property::ParseDataType(buffer))) {
+            // unable to parse data type. Skip the property
+            PLY::DOM::SkipLine(buffer);
+            return false;
+        }
+    }
+
+    if (!PLY::DOM::SkipSpaces(buffer))
+        return false;
+
+    pOut->Semantic = PLY::Property::ParseSemantic(buffer);
+
+    if (PLY::EST_INVALID == pOut->Semantic) {
+        ASSIMP_LOG_INFO("Found unknown semantic in PLY file. This is OK");
+        std::string(&buffer[0], &buffer[0] + strlen(&buffer[0]));
+    }
+
+    PLY::DOM::SkipSpacesAndLineEnd(buffer);
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+PLY::EElementSemantic PLY::Element::ParseSemantic(std::vector<char> &buffer) {
+    ai_assert(!buffer.empty());
+
+    PLY::EElementSemantic eOut = PLY::EEST_INVALID;
+    if (PLY::DOM::TokenMatch(buffer, "vertex", 6)) {
+        eOut = PLY::EEST_Vertex;
+    } else if (PLY::DOM::TokenMatch(buffer, "face", 4)) {
+        eOut = PLY::EEST_Face;
+    } else if (PLY::DOM::TokenMatch(buffer, "tristrips", 9)) {
+        eOut = PLY::EEST_TriStrip;
+    }
+#if 0
+  // TODO: maybe implement this?
+  else if (PLY::DOM::TokenMatch(buffer,"range_grid",10))
+  {
+    eOut = PLY::EEST_Face;
+  }
+#endif
+    else if (PLY::DOM::TokenMatch(buffer, "edge", 4)) {
+        eOut = PLY::EEST_Edge;
+    } else if (PLY::DOM::TokenMatch(buffer, "material", 8)) {
+        eOut = PLY::EEST_Material;
+    } else if (PLY::DOM::TokenMatch(buffer, "TextureFile", 11)) {
+        eOut = PLY::EEST_TextureFile;
+    }
+
+    return eOut;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::Element::ParseElement(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer, PLY::Element *pOut) {
+    ai_assert(nullptr != pOut);
+    // Example format: "element vertex 8"
+
+    // skip leading spaces
+    if (!PLY::DOM::SkipSpaces(buffer)) {
+        return false;
+    }
+
+    // skip the "element" string at the beginning
+    if (!PLY::DOM::TokenMatch(buffer, "element", 7) && !PLY::DOM::TokenMatch(buffer, "comment", 7)) {
+        // seems not to be a valid property entry
+        return false;
+    }
+    // get next word
+    if (!PLY::DOM::SkipSpaces(buffer))
+        return false;
+
+    // parse the semantic of the element
+    pOut->eSemantic = PLY::Element::ParseSemantic(buffer);
+    if (PLY::EEST_INVALID == pOut->eSemantic) {
+        // if the exact semantic can't be determined, just store
+        // the original string identifier
+        pOut->szName = std::string(&buffer[0], &buffer[0] + strlen(&buffer[0]));
+    }
+
+    if (!PLY::DOM::SkipSpaces(buffer))
+        return false;
+
+    if (PLY::EEST_TextureFile == pOut->eSemantic) {
+        char *endPos = &buffer[0] + (strlen(&buffer[0]) - 1);
+        pOut->szName = std::string(&buffer[0], endPos);
+
+        // go to the next line
+        PLY::DOM::SkipSpacesAndLineEnd(buffer);
+
+        return true;
+    }
+
+    //parse the number of occurrences of this element
+    const char *pCur = (char *)&buffer[0];
+    pOut->NumOccur = strtoul10(pCur, &pCur);
+
+    // go to the next line
+    PLY::DOM::SkipSpacesAndLineEnd(buffer);
+
+    // now parse all properties of the element
+    while (true) {
+        streamBuffer.getNextLine(buffer);
+        pCur = (char *)&buffer[0];
+
+        // skip all comments
+        PLY::DOM::SkipComments(buffer);
+
+        PLY::Property prop;
+        if (!PLY::Property::ParseProperty(buffer, &prop))
+            break;
+
+        pOut->alProperties.push_back(prop);
+    }
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::DOM::SkipSpaces(std::vector<char> &buffer) {
+    const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
+    bool ret = false;
+    if (pCur) {
+        const char *szCur = pCur;
+        ret = Assimp::SkipSpaces(pCur, &pCur);
+
+        uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
+        buffer.erase(buffer.begin(), buffer.begin() + iDiff);
+        return ret;
+    }
+
+    return ret;
+}
+
+bool PLY::DOM::SkipLine(std::vector<char> &buffer) {
+    const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
+    bool ret = false;
+    if (pCur) {
+        const char *szCur = pCur;
+        ret = Assimp::SkipLine(pCur, &pCur);
+
+        uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
+        buffer.erase(buffer.begin(), buffer.begin() + iDiff);
+        return ret;
+    }
+
+    return ret;
+}
+
+bool PLY::DOM::TokenMatch(std::vector<char> &buffer, const char *token, unsigned int len) {
+    const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
+    bool ret = false;
+    if (pCur) {
+        const char *szCur = pCur;
+        ret = Assimp::TokenMatch(pCur, token, len);
+
+        uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
+        buffer.erase(buffer.begin(), buffer.begin() + iDiff);
+        return ret;
+    }
+
+    return ret;
+}
+
+bool PLY::DOM::SkipSpacesAndLineEnd(std::vector<char> &buffer) {
+    const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
+    bool ret = false;
+    if (pCur) {
+        const char *szCur = pCur;
+        ret = Assimp::SkipSpacesAndLineEnd(pCur, &pCur);
+
+        uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
+        buffer.erase(buffer.begin(), buffer.begin() + iDiff);
+        return ret;
+    }
+
+    return ret;
+}
+
+bool PLY::DOM::SkipComments(std::vector<char> &buffer) {
+    ai_assert(!buffer.empty());
+
+    std::vector<char> nbuffer = buffer;
+    // skip spaces
+    if (!SkipSpaces(nbuffer)) {
+        return false;
+    }
+
+    if (TokenMatch(nbuffer, "comment", 7)) {
+        if (!SkipSpaces(nbuffer))
+            SkipLine(nbuffer);
+
+        if (!TokenMatch(nbuffer, "TextureFile", 11)) {
+            SkipLine(nbuffer);
+            buffer = nbuffer;
+            return true;
+        }
+
+        return true;
+    }
+
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::DOM::ParseHeader(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer, bool isBinary) {
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseHeader() begin");
+
+    // parse all elements
+    while (!buffer.empty()) {
+        // skip all comments
+        PLY::DOM::SkipComments(buffer);
+
+        PLY::Element out;
+        if (PLY::Element::ParseElement(streamBuffer, buffer, &out)) {
+            // add the element to the list of elements
+            alElements.push_back(out);
+        } else if (TokenMatch(buffer, "end_header", 10)) { //checks for /n ending, if it doesn't end with /r/n
+            // we have reached the end of the header
+            break;
+        } else {
+            // ignore unknown header elements
+            streamBuffer.getNextLine(buffer);
+        }
+    }
+
+    if (!isBinary) // it would occur an error, if binary data start with values as space or line end.
+        SkipSpacesAndLineEnd(buffer);
+
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseHeader() succeeded");
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::DOM::ParseElementInstanceLists(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer, PLYImporter *loader) {
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseElementInstanceLists() begin");
+    alElementData.resize(alElements.size());
+
+    std::vector<PLY::Element>::const_iterator i = alElements.begin();
+    std::vector<PLY::ElementInstanceList>::iterator a = alElementData.begin();
+
+    // parse all element instances
+    //construct vertices and faces
+    for (; i != alElements.end(); ++i, ++a) {
+        if ((*i).eSemantic == EEST_Vertex || (*i).eSemantic == EEST_Face || (*i).eSemantic == EEST_TriStrip) {
+            PLY::ElementInstanceList::ParseInstanceList(streamBuffer, buffer, &(*i), nullptr, loader);
+        } else {
+            (*a).alInstances.resize((*i).NumOccur);
+            PLY::ElementInstanceList::ParseInstanceList(streamBuffer, buffer, &(*i), &(*a), nullptr);
+        }
+    }
+
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseElementInstanceLists() succeeded");
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::DOM::ParseElementInstanceListsBinary(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer,
+        const char *&pCur,
+        unsigned int &bufferSize,
+        PLYImporter *loader,
+        bool p_bBE) {
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseElementInstanceListsBinary() begin");
+    alElementData.resize(alElements.size());
+
+    std::vector<PLY::Element>::const_iterator i = alElements.begin();
+    std::vector<PLY::ElementInstanceList>::iterator a = alElementData.begin();
+
+    // parse all element instances
+    for (; i != alElements.end(); ++i, ++a) {
+        if ((*i).eSemantic == EEST_Vertex || (*i).eSemantic == EEST_Face || (*i).eSemantic == EEST_TriStrip) {
+            PLY::ElementInstanceList::ParseInstanceListBinary(streamBuffer, buffer, pCur, bufferSize, &(*i), nullptr, loader, p_bBE);
+        } else {
+            (*a).alInstances.resize((*i).NumOccur);
+            PLY::ElementInstanceList::ParseInstanceListBinary(streamBuffer, buffer, pCur, bufferSize, &(*i), &(*a), nullptr, p_bBE);
+        }
+    }
+
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseElementInstanceListsBinary() succeeded");
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::DOM::ParseInstanceBinary(IOStreamBuffer<char> &streamBuffer, DOM *p_pcOut, PLYImporter *loader, bool p_bBE) {
+    ai_assert(nullptr != p_pcOut);
+    ai_assert(nullptr != loader);
+
+    std::vector<char> buffer;
+    streamBuffer.getNextLine(buffer);
+
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstanceBinary() begin");
+
+    if (!p_pcOut->ParseHeader(streamBuffer, buffer, true)) {
+        ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstanceBinary() failure");
+        return false;
+    }
+
+    streamBuffer.getNextBlock(buffer);
+
+    // remove first char if it's /n in case of file with /r/n
+    if (((char *)&buffer[0])[0] == '\n')
+        buffer.erase(buffer.begin(), buffer.begin() + 1);
+
+    unsigned int bufferSize = static_cast<unsigned int>(buffer.size());
+    const char *pCur = (char *)&buffer[0];
+    if (!p_pcOut->ParseElementInstanceListsBinary(streamBuffer, buffer, pCur, bufferSize, loader, p_bBE)) {
+        ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstanceBinary() failure");
+        return false;
+    }
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstanceBinary() succeeded");
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::DOM::ParseInstance(IOStreamBuffer<char> &streamBuffer, DOM *p_pcOut, PLYImporter *loader) {
+    ai_assert(nullptr != p_pcOut);
+    ai_assert(nullptr != loader);
+
+    std::vector<char> buffer;
+    streamBuffer.getNextLine(buffer);
+
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstance() begin");
+
+    if (!p_pcOut->ParseHeader(streamBuffer, buffer, false)) {
+        ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstance() failure");
+        return false;
+    }
+
+    //get next line after header
+    streamBuffer.getNextLine(buffer);
+    if (!p_pcOut->ParseElementInstanceLists(streamBuffer, buffer, loader)) {
+        ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstance() failure");
+        return false;
+    }
+    ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseInstance() succeeded");
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::ElementInstanceList::ParseInstanceList(
+        IOStreamBuffer<char> &streamBuffer,
+        std::vector<char> &buffer,
+        const PLY::Element *pcElement,
+        PLY::ElementInstanceList *p_pcOut,
+        PLYImporter *loader) {
+    ai_assert(nullptr != pcElement);
+
+    // parse all elements
+    if (EEST_INVALID == pcElement->eSemantic || pcElement->alProperties.empty()) {
+        // if the element has an unknown semantic we can skip all lines
+        // However, there could be comments
+        for (unsigned int i = 0; i < pcElement->NumOccur; ++i) {
+            PLY::DOM::SkipComments(buffer);
+            PLY::DOM::SkipLine(buffer);
+            streamBuffer.getNextLine(buffer);
+        }
+    } else {
+        const char *pCur = (const char *)&buffer[0];
+        // be sure to have enough storage
+        for (unsigned int i = 0; i < pcElement->NumOccur; ++i) {
+            if (p_pcOut)
+                PLY::ElementInstance::ParseInstance(pCur, pcElement, &p_pcOut->alInstances[i]);
+            else {
+                ElementInstance elt;
+                PLY::ElementInstance::ParseInstance(pCur, pcElement, &elt);
+
+                // Create vertex or face
+                if (pcElement->eSemantic == EEST_Vertex) {
+                    //call loader instance from here
+                    loader->LoadVertex(pcElement, &elt, i);
+                } else if (pcElement->eSemantic == EEST_Face) {
+                    //call loader instance from here
+                    loader->LoadFace(pcElement, &elt, i);
+                } else if (pcElement->eSemantic == EEST_TriStrip) {
+                    //call loader instance from here
+                    loader->LoadFace(pcElement, &elt, i);
+                }
+            }
+
+            streamBuffer.getNextLine(buffer);
+            pCur = (buffer.empty()) ? nullptr : (const char *)&buffer[0];
+        }
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::ElementInstanceList::ParseInstanceListBinary(
+        IOStreamBuffer<char> &streamBuffer,
+        std::vector<char> &buffer,
+        const char *&pCur,
+        unsigned int &bufferSize,
+        const PLY::Element *pcElement,
+        PLY::ElementInstanceList *p_pcOut,
+        PLYImporter *loader,
+        bool p_bBE /* = false */) {
+    ai_assert(nullptr != pcElement);
+
+    // we can add special handling code for unknown element semantics since
+    // we can't skip it as a whole block (we don't know its exact size
+    // due to the fact that lists could be contained in the property list
+    // of the unknown element)
+    for (unsigned int i = 0; i < pcElement->NumOccur; ++i) {
+        if (p_pcOut)
+            PLY::ElementInstance::ParseInstanceBinary(streamBuffer, buffer, pCur, bufferSize, pcElement, &p_pcOut->alInstances[i], p_bBE);
+        else {
+            ElementInstance elt;
+            PLY::ElementInstance::ParseInstanceBinary(streamBuffer, buffer, pCur, bufferSize, pcElement, &elt, p_bBE);
+
+            // Create vertex or face
+            if (pcElement->eSemantic == EEST_Vertex) {
+                //call loader instance from here
+                loader->LoadVertex(pcElement, &elt, i);
+            } else if (pcElement->eSemantic == EEST_Face) {
+                //call loader instance from here
+                loader->LoadFace(pcElement, &elt, i);
+            } else if (pcElement->eSemantic == EEST_TriStrip) {
+                //call loader instance from here
+                loader->LoadFace(pcElement, &elt, i);
+            }
+        }
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::ElementInstance::ParseInstance(const char *&pCur,
+        const PLY::Element *pcElement,
+        PLY::ElementInstance *p_pcOut) {
+    ai_assert(nullptr != pcElement);
+    ai_assert(nullptr != p_pcOut);
+
+    // allocate enough storage
+    p_pcOut->alProperties.resize(pcElement->alProperties.size());
+
+    std::vector<PLY::PropertyInstance>::iterator i = p_pcOut->alProperties.begin();
+    std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin();
+    for (; i != p_pcOut->alProperties.end(); ++i, ++a) {
+        if (!(PLY::PropertyInstance::ParseInstance(pCur, &(*a), &(*i)))) {
+            ASSIMP_LOG_WARN("Unable to parse property instance. "
+                            "Skipping this element instance");
+
+            PLY::PropertyInstance::ValueUnion v = PLY::PropertyInstance::DefaultValue((*a).eType);
+            (*i).avList.push_back(v);
+        }
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::ElementInstance::ParseInstanceBinary(
+        IOStreamBuffer<char> &streamBuffer,
+        std::vector<char> &buffer,
+        const char *&pCur,
+        unsigned int &bufferSize,
+        const PLY::Element *pcElement,
+        PLY::ElementInstance *p_pcOut,
+        bool p_bBE /* = false */) {
+    ai_assert(nullptr != pcElement);
+    ai_assert(nullptr != p_pcOut);
+
+    // allocate enough storage
+    p_pcOut->alProperties.resize(pcElement->alProperties.size());
+
+    std::vector<PLY::PropertyInstance>::iterator i = p_pcOut->alProperties.begin();
+    std::vector<PLY::Property>::const_iterator a = pcElement->alProperties.begin();
+    for (; i != p_pcOut->alProperties.end(); ++i, ++a) {
+        if (!(PLY::PropertyInstance::ParseInstanceBinary(streamBuffer, buffer, pCur, bufferSize, &(*a), &(*i), p_bBE))) {
+            ASSIMP_LOG_WARN("Unable to parse binary property instance. "
+                            "Skipping this element instance");
+
+            (*i).avList.push_back(PLY::PropertyInstance::DefaultValue((*a).eType));
+        }
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::PropertyInstance::ParseInstance(const char *&pCur,
+        const PLY::Property *prop, PLY::PropertyInstance *p_pcOut) {
+    ai_assert(nullptr != prop);
+    ai_assert(nullptr != p_pcOut);
+
+    // skip spaces at the beginning
+    if (!SkipSpaces(&pCur)) {
+        return false;
+    }
+
+    if (prop->bIsList) {
+        // parse the number of elements in the list
+        PLY::PropertyInstance::ValueUnion v;
+        PLY::PropertyInstance::ParseValue(pCur, prop->eFirstType, &v);
+
+        // convert to unsigned int
+        unsigned int iNum = PLY::PropertyInstance::ConvertTo<unsigned int>(v, prop->eFirstType);
+
+        // parse all list elements
+        p_pcOut->avList.resize(iNum);
+        for (unsigned int i = 0; i < iNum; ++i) {
+            if (!SkipSpaces(&pCur))
+                return false;
+
+            PLY::PropertyInstance::ParseValue(pCur, prop->eType, &p_pcOut->avList[i]);
+        }
+    } else {
+        // parse the property
+        PLY::PropertyInstance::ValueUnion v;
+
+        PLY::PropertyInstance::ParseValue(pCur, prop->eType, &v);
+        p_pcOut->avList.push_back(v);
+    }
+    SkipSpacesAndLineEnd(&pCur);
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::PropertyInstance::ParseInstanceBinary(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer,
+        const char *&pCur,
+        unsigned int &bufferSize,
+        const PLY::Property *prop,
+        PLY::PropertyInstance *p_pcOut,
+        bool p_bBE) {
+    ai_assert(nullptr != prop);
+    ai_assert(nullptr != p_pcOut);
+
+    // parse all elements
+    if (prop->bIsList) {
+        // parse the number of elements in the list
+        PLY::PropertyInstance::ValueUnion v;
+        PLY::PropertyInstance::ParseValueBinary(streamBuffer, buffer, pCur, bufferSize, prop->eFirstType, &v, p_bBE);
+
+        // convert to unsigned int
+        unsigned int iNum = PLY::PropertyInstance::ConvertTo<unsigned int>(v, prop->eFirstType);
+
+        // parse all list elements
+        p_pcOut->avList.resize(iNum);
+        for (unsigned int i = 0; i < iNum; ++i) {
+            PLY::PropertyInstance::ParseValueBinary(streamBuffer, buffer, pCur, bufferSize, prop->eType, &p_pcOut->avList[i], p_bBE);
+        }
+    } else {
+        // parse the property
+        PLY::PropertyInstance::ValueUnion v;
+        PLY::PropertyInstance::ParseValueBinary(streamBuffer, buffer, pCur, bufferSize, prop->eType, &v, p_bBE);
+        p_pcOut->avList.push_back(v);
+    }
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+PLY::PropertyInstance::ValueUnion PLY::PropertyInstance::DefaultValue(PLY::EDataType eType) {
+    PLY::PropertyInstance::ValueUnion out;
+
+    switch (eType) {
+    case EDT_Float:
+        out.fFloat = 0.f;
+        return out;
+
+    case EDT_Double:
+        out.fDouble = 0.;
+        return out;
+
+    default:;
+    };
+    out.iUInt = 0;
+    return out;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::PropertyInstance::ParseValue(const char *&pCur,
+        PLY::EDataType eType,
+        PLY::PropertyInstance::ValueUnion *out) {
+    ai_assert(nullptr != pCur);
+    ai_assert(nullptr != out);
+
+    //calc element size
+    bool ret = true;
+    switch (eType) {
+    case EDT_UInt:
+    case EDT_UShort:
+    case EDT_UChar:
+
+        out->iUInt = (uint32_t)strtoul10(pCur, &pCur);
+        break;
+
+    case EDT_Int:
+    case EDT_Short:
+    case EDT_Char:
+
+        out->iInt = (int32_t)strtol10(pCur, &pCur);
+        break;
+
+    case EDT_Float:
+        // technically this should cast to float, but people tend to use float descriptors for double data
+        // this is the best way to not risk losing precision on import and it doesn't hurt to do this
+        ai_real f;
+        pCur = fast_atoreal_move<ai_real>(pCur, f);
+        out->fFloat = (ai_real)f;
+        break;
+
+    case EDT_Double:
+        double d;
+        pCur = fast_atoreal_move<double>(pCur, d);
+        out->fDouble = (double)d;
+        break;
+
+    case EDT_INVALID:
+    default:
+        ret = false;
+        break;
+    }
+
+    return ret;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool PLY::PropertyInstance::ParseValueBinary(IOStreamBuffer<char> &streamBuffer,
+        std::vector<char> &buffer,
+        const char *&pCur,
+        unsigned int &bufferSize,
+        PLY::EDataType eType,
+        PLY::PropertyInstance::ValueUnion *out,
+        bool p_bBE) {
+    ai_assert(nullptr != out);
+
+    //calc element size
+    unsigned int lsize = 0;
+    switch (eType) {
+    case EDT_Char:
+    case EDT_UChar:
+        lsize = 1;
+        break;
+
+    case EDT_UShort:
+    case EDT_Short:
+        lsize = 2;
+        break;
+
+    case EDT_UInt:
+    case EDT_Int:
+    case EDT_Float:
+        lsize = 4;
+        break;
+
+    case EDT_Double:
+        lsize = 8;
+        break;
+
+    case EDT_INVALID:
+    default:
+        break;
+    }
+
+    //read the next file block if needed
+    if (bufferSize < lsize) {
+        std::vector<char> nbuffer;
+        if (streamBuffer.getNextBlock(nbuffer)) {
+            //concat buffer contents
+            buffer = std::vector<char>(buffer.end() - bufferSize, buffer.end());
+            buffer.insert(buffer.end(), nbuffer.begin(), nbuffer.end());
+            nbuffer.clear();
+            bufferSize = static_cast<unsigned int>(buffer.size());
+            pCur = (char *)&buffer[0];
+        } else {
+            throw DeadlyImportError("Invalid .ply file: File corrupted");
+        }
+    }
+
+    bool ret = true;
+    switch (eType) {
+    case EDT_UInt: {
+        uint32_t t;
+        memcpy(&t, pCur, sizeof(uint32_t));
+        pCur += sizeof(uint32_t);
+
+        // Swap endianness
+        if (p_bBE) ByteSwap::Swap(&t);
+        out->iUInt = t;
+        break;
+    }
+
+    case EDT_UShort: {
+        uint16_t t;
+        memcpy(&t, pCur, sizeof(uint16_t));
+        pCur += sizeof(uint16_t);
+
+        // Swap endianness
+        if (p_bBE) ByteSwap::Swap(&t);
+        out->iUInt = t;
+        break;
+    }
+
+    case EDT_UChar: {
+        uint8_t t;
+        memcpy(&t, pCur, sizeof(uint8_t));
+        pCur += sizeof(uint8_t);
+        out->iUInt = t;
+        break;
+    }
+
+    case EDT_Int: {
+        int32_t t;
+        memcpy(&t, pCur, sizeof(int32_t));
+        pCur += sizeof(int32_t);
+
+        // Swap endianness
+        if (p_bBE) ByteSwap::Swap(&t);
+        out->iInt = t;
+        break;
+    }
+
+    case EDT_Short: {
+        int16_t t;
+        memcpy(&t, pCur, sizeof(int16_t));
+        pCur += sizeof(int16_t);
+
+        // Swap endianness
+        if (p_bBE) ByteSwap::Swap(&t);
+        out->iInt = t;
+        break;
+    }
+
+    case EDT_Char: {
+        int8_t t;
+        memcpy(&t, pCur, sizeof(int8_t));
+        pCur += sizeof(int8_t);
+        out->iInt = t;
+        break;
+    }
+
+    case EDT_Float: {
+        float t;
+        memcpy(&t, pCur, sizeof(float));
+        pCur += sizeof(float);
+
+        // Swap endianness
+        if (p_bBE) ByteSwap::Swap(&t);
+        out->fFloat = t;
+        break;
+    }
+    case EDT_Double: {
+        double t;
+        memcpy(&t, pCur, sizeof(double));
+        pCur += sizeof(double);
+
+        // Swap endianness
+        if (p_bBE) ByteSwap::Swap(&t);
+        out->fDouble = t;
+        break;
+    }
+    default:
+        ret = false;
+    }
+
+    bufferSize -= lsize;
+
+    return ret;
+}
+
+#endif // !! ASSIMP_BUILD_NO_PLY_IMPORTER