967 lines
33 KiB
C++
967 lines
33 KiB
C++
/*
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---------------------------------------------------------------------------
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Open Asset Import Library (assimp)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2022, assimp team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the following
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conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the assimp team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the assimp team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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---------------------------------------------------------------------------
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*/
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/** @file Implementation of the PLY parser class */
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#ifndef ASSIMP_BUILD_NO_PLY_IMPORTER
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#include "PlyLoader.h"
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#include <assimp/ByteSwapper.h>
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#include <assimp/fast_atof.h>
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#include <assimp/DefaultLogger.hpp>
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#include <utility>
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namespace Assimp {
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// ------------------------------------------------------------------------------------------------
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PLY::EDataType PLY::Property::ParseDataType(std::vector<char> &buffer) {
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ai_assert(!buffer.empty());
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PLY::EDataType eOut = PLY::EDT_INVALID;
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if (PLY::DOM::TokenMatch(buffer, "char", 4) ||
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PLY::DOM::TokenMatch(buffer, "int8", 4)) {
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eOut = PLY::EDT_Char;
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} else if (PLY::DOM::TokenMatch(buffer, "uchar", 5) ||
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PLY::DOM::TokenMatch(buffer, "uint8", 5)) {
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eOut = PLY::EDT_UChar;
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} else if (PLY::DOM::TokenMatch(buffer, "short", 5) ||
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PLY::DOM::TokenMatch(buffer, "int16", 5)) {
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eOut = PLY::EDT_Short;
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} else if (PLY::DOM::TokenMatch(buffer, "ushort", 6) ||
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PLY::DOM::TokenMatch(buffer, "uint16", 6)) {
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eOut = PLY::EDT_UShort;
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} else if (PLY::DOM::TokenMatch(buffer, "int32", 5) || PLY::DOM::TokenMatch(buffer, "int", 3)) {
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eOut = PLY::EDT_Int;
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} else if (PLY::DOM::TokenMatch(buffer, "uint32", 6) || PLY::DOM::TokenMatch(buffer, "uint", 4)) {
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eOut = PLY::EDT_UInt;
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} else if (PLY::DOM::TokenMatch(buffer, "float", 5) || PLY::DOM::TokenMatch(buffer, "float32", 7)) {
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eOut = PLY::EDT_Float;
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} else if (PLY::DOM::TokenMatch(buffer, "double64", 8) || PLY::DOM::TokenMatch(buffer, "double", 6) ||
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PLY::DOM::TokenMatch(buffer, "float64", 7)) {
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eOut = PLY::EDT_Double;
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}
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if (PLY::EDT_INVALID == eOut) {
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ASSIMP_LOG_INFO("Found unknown data type in PLY file. This is OK");
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}
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return eOut;
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}
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// ------------------------------------------------------------------------------------------------
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PLY::ESemantic PLY::Property::ParseSemantic(std::vector<char> &buffer) {
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ai_assert(!buffer.empty());
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PLY::ESemantic eOut = PLY::EST_INVALID;
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if (PLY::DOM::TokenMatch(buffer, "red", 3)) {
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eOut = PLY::EST_Red;
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} else if (PLY::DOM::TokenMatch(buffer, "green", 5)) {
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eOut = PLY::EST_Green;
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} else if (PLY::DOM::TokenMatch(buffer, "blue", 4)) {
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eOut = PLY::EST_Blue;
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} else if (PLY::DOM::TokenMatch(buffer, "alpha", 5)) {
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eOut = PLY::EST_Alpha;
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} else if (PLY::DOM::TokenMatch(buffer, "vertex_index", 12) || PLY::DOM::TokenMatch(buffer, "vertex_indices", 14)) {
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eOut = PLY::EST_VertexIndex;
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} else if (PLY::DOM::TokenMatch(buffer, "texcoord", 8)) // Manage uv coords on faces
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{
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eOut = PLY::EST_TextureCoordinates;
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} else if (PLY::DOM::TokenMatch(buffer, "material_index", 14)) {
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eOut = PLY::EST_MaterialIndex;
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} else if (PLY::DOM::TokenMatch(buffer, "ambient_red", 11)) {
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eOut = PLY::EST_AmbientRed;
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} else if (PLY::DOM::TokenMatch(buffer, "ambient_green", 13)) {
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eOut = PLY::EST_AmbientGreen;
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} else if (PLY::DOM::TokenMatch(buffer, "ambient_blue", 12)) {
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eOut = PLY::EST_AmbientBlue;
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} else if (PLY::DOM::TokenMatch(buffer, "ambient_alpha", 13)) {
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eOut = PLY::EST_AmbientAlpha;
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} else if (PLY::DOM::TokenMatch(buffer, "diffuse_red", 11)) {
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eOut = PLY::EST_DiffuseRed;
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} else if (PLY::DOM::TokenMatch(buffer, "diffuse_green", 13)) {
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eOut = PLY::EST_DiffuseGreen;
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} else if (PLY::DOM::TokenMatch(buffer, "diffuse_blue", 12)) {
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eOut = PLY::EST_DiffuseBlue;
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} else if (PLY::DOM::TokenMatch(buffer, "diffuse_alpha", 13)) {
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eOut = PLY::EST_DiffuseAlpha;
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} else if (PLY::DOM::TokenMatch(buffer, "specular_red", 12)) {
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eOut = PLY::EST_SpecularRed;
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} else if (PLY::DOM::TokenMatch(buffer, "specular_green", 14)) {
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eOut = PLY::EST_SpecularGreen;
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} else if (PLY::DOM::TokenMatch(buffer, "specular_blue", 13)) {
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eOut = PLY::EST_SpecularBlue;
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} else if (PLY::DOM::TokenMatch(buffer, "specular_alpha", 14)) {
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eOut = PLY::EST_SpecularAlpha;
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} else if (PLY::DOM::TokenMatch(buffer, "opacity", 7)) {
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eOut = PLY::EST_Opacity;
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} else if (PLY::DOM::TokenMatch(buffer, "specular_power", 14)) {
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eOut = PLY::EST_PhongPower;
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} else if (PLY::DOM::TokenMatch(buffer, "r", 1)) {
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eOut = PLY::EST_Red;
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} else if (PLY::DOM::TokenMatch(buffer, "g", 1)) {
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eOut = PLY::EST_Green;
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} else if (PLY::DOM::TokenMatch(buffer, "b", 1)) {
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eOut = PLY::EST_Blue;
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}
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// NOTE: Blender3D exports texture coordinates as s,t tuples
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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)) {
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eOut = PLY::EST_UTextureCoord;
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} 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)) {
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eOut = PLY::EST_VTextureCoord;
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} else if (PLY::DOM::TokenMatch(buffer, "x", 1)) {
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eOut = PLY::EST_XCoord;
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} else if (PLY::DOM::TokenMatch(buffer, "y", 1)) {
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eOut = PLY::EST_YCoord;
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} else if (PLY::DOM::TokenMatch(buffer, "z", 1)) {
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eOut = PLY::EST_ZCoord;
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} else if (PLY::DOM::TokenMatch(buffer, "nx", 2)) {
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eOut = PLY::EST_XNormal;
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} else if (PLY::DOM::TokenMatch(buffer, "ny", 2)) {
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eOut = PLY::EST_YNormal;
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} else if (PLY::DOM::TokenMatch(buffer, "nz", 2)) {
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eOut = PLY::EST_ZNormal;
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} else {
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ASSIMP_LOG_INFO("Found unknown property semantic in file. This is ok");
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PLY::DOM::SkipLine(buffer);
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}
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return eOut;
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}
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// ------------------------------------------------------------------------------------------------
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bool PLY::Property::ParseProperty(std::vector<char> &buffer, PLY::Property *pOut) {
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ai_assert(!buffer.empty());
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// Forms supported:
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// "property float x"
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// "property list uchar int vertex_index"
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// skip leading spaces
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if (!PLY::DOM::SkipSpaces(buffer)) {
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return false;
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}
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// skip the "property" string at the beginning
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if (!PLY::DOM::TokenMatch(buffer, "property", 8)) {
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// seems not to be a valid property entry
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return false;
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}
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// get next word
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if (!PLY::DOM::SkipSpaces(buffer)) {
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return false;
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}
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if (PLY::DOM::TokenMatch(buffer, "list", 4)) {
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pOut->bIsList = true;
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// seems to be a list.
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if (EDT_INVALID == (pOut->eFirstType = PLY::Property::ParseDataType(buffer))) {
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// unable to parse list size data type
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PLY::DOM::SkipLine(buffer);
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return false;
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}
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if (!PLY::DOM::SkipSpaces(buffer)) return false;
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if (EDT_INVALID == (pOut->eType = PLY::Property::ParseDataType(buffer))) {
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// unable to parse list data type
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PLY::DOM::SkipLine(buffer);
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return false;
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}
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} else {
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if (EDT_INVALID == (pOut->eType = PLY::Property::ParseDataType(buffer))) {
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// unable to parse data type. Skip the property
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PLY::DOM::SkipLine(buffer);
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return false;
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}
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}
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if (!PLY::DOM::SkipSpaces(buffer))
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return false;
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pOut->Semantic = PLY::Property::ParseSemantic(buffer);
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if (PLY::EST_INVALID == pOut->Semantic) {
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ASSIMP_LOG_INFO("Found unknown semantic in PLY file. This is OK");
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std::string(&buffer[0], &buffer[0] + strlen(&buffer[0]));
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}
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PLY::DOM::SkipSpacesAndLineEnd(buffer);
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return true;
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}
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// ------------------------------------------------------------------------------------------------
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PLY::EElementSemantic PLY::Element::ParseSemantic(std::vector<char> &buffer) {
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ai_assert(!buffer.empty());
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PLY::EElementSemantic eOut = PLY::EEST_INVALID;
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if (PLY::DOM::TokenMatch(buffer, "vertex", 6)) {
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eOut = PLY::EEST_Vertex;
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} else if (PLY::DOM::TokenMatch(buffer, "face", 4)) {
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eOut = PLY::EEST_Face;
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} else if (PLY::DOM::TokenMatch(buffer, "tristrips", 9)) {
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eOut = PLY::EEST_TriStrip;
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}
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#if 0
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// TODO: maybe implement this?
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else if (PLY::DOM::TokenMatch(buffer,"range_grid",10))
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{
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eOut = PLY::EEST_Face;
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}
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#endif
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else if (PLY::DOM::TokenMatch(buffer, "edge", 4)) {
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eOut = PLY::EEST_Edge;
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} else if (PLY::DOM::TokenMatch(buffer, "material", 8)) {
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eOut = PLY::EEST_Material;
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} else if (PLY::DOM::TokenMatch(buffer, "TextureFile", 11)) {
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eOut = PLY::EEST_TextureFile;
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}
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return eOut;
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}
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// ------------------------------------------------------------------------------------------------
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bool PLY::Element::ParseElement(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer, PLY::Element *pOut) {
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ai_assert(nullptr != pOut);
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// Example format: "element vertex 8"
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// skip leading spaces
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if (!PLY::DOM::SkipSpaces(buffer)) {
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return false;
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}
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// skip the "element" string at the beginning
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if (!PLY::DOM::TokenMatch(buffer, "element", 7) && !PLY::DOM::TokenMatch(buffer, "comment", 7)) {
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// seems not to be a valid property entry
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return false;
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}
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// get next word
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if (!PLY::DOM::SkipSpaces(buffer))
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return false;
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// parse the semantic of the element
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pOut->eSemantic = PLY::Element::ParseSemantic(buffer);
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if (PLY::EEST_INVALID == pOut->eSemantic) {
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// if the exact semantic can't be determined, just store
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// the original string identifier
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pOut->szName = std::string(&buffer[0], &buffer[0] + strlen(&buffer[0]));
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}
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if (!PLY::DOM::SkipSpaces(buffer))
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return false;
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if (PLY::EEST_TextureFile == pOut->eSemantic) {
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char *endPos = &buffer[0] + (strlen(&buffer[0]) - 1);
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pOut->szName = std::string(&buffer[0], endPos);
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// go to the next line
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PLY::DOM::SkipSpacesAndLineEnd(buffer);
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return true;
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}
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// parse the number of occurrences of this element
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const char *pCur = (char *)&buffer[0];
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pOut->NumOccur = strtoul10(pCur, &pCur);
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// go to the next line
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PLY::DOM::SkipSpacesAndLineEnd(buffer);
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// now parse all properties of the element
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while (true) {
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streamBuffer.getNextLine(buffer);
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pCur = (char *)&buffer[0];
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// skip all comments and go to next line
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if (PLY::DOM::SkipComments(buffer)) continue;
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PLY::Property prop;
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if (!PLY::Property::ParseProperty(buffer, &prop))
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break;
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pOut->alProperties.push_back(prop);
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}
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return true;
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}
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bool PLY::DOM::SkipSpaces(std::vector<char> &buffer) {
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const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
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const char *end = pCur + buffer.size();
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bool ret = false;
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if (pCur) {
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const char *szCur = pCur;
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ret = Assimp::SkipSpaces(pCur, &pCur, end);
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uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
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buffer.erase(buffer.begin(), buffer.begin() + iDiff);
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return ret;
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}
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return ret;
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}
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bool PLY::DOM::SkipLine(std::vector<char> &buffer) {
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const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
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const char *end = pCur + buffer.size();
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bool ret = false;
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if (pCur) {
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const char *szCur = pCur;
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ret = Assimp::SkipLine(pCur, &pCur, end);
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uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
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buffer.erase(buffer.begin(), buffer.begin() + iDiff);
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return ret;
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}
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return ret;
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}
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bool PLY::DOM::TokenMatch(std::vector<char> &buffer, const char *token, unsigned int len) {
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const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
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bool ret = false;
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if (pCur) {
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const char *szCur = pCur;
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ret = Assimp::TokenMatch(pCur, token, len);
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uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
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buffer.erase(buffer.begin(), buffer.begin() + iDiff);
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return ret;
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}
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return ret;
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}
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bool PLY::DOM::SkipSpacesAndLineEnd(std::vector<char> &buffer) {
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const char *pCur = buffer.empty() ? nullptr : (char *)&buffer[0];
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const char *end = pCur + buffer.size();
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bool ret = false;
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if (pCur) {
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const char *szCur = pCur;
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ret = Assimp::SkipSpacesAndLineEnd(pCur, &pCur, end);
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uintptr_t iDiff = (uintptr_t)pCur - (uintptr_t)szCur;
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buffer.erase(buffer.begin(), buffer.begin() + iDiff);
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return ret;
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}
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return ret;
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}
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bool PLY::DOM::SkipComments(std::vector<char> buffer) {
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ai_assert(!buffer.empty());
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std::vector<char> nbuffer = std::move(buffer);
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// skip spaces
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if (!SkipSpaces(nbuffer)) {
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return false;
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}
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if (TokenMatch(nbuffer, "comment", 7)) {
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if (!SkipSpaces(nbuffer))
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SkipLine(nbuffer);
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if (!TokenMatch(nbuffer, "TextureFile", 11)) {
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SkipLine(nbuffer);
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buffer = nbuffer;
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return true;
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}
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return true;
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}
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return false;
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}
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// ------------------------------------------------------------------------------------------------
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bool PLY::DOM::ParseHeader(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer, bool isBinary) {
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ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseHeader() begin");
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// parse all elements
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while (!buffer.empty()) {
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// skip all comments
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PLY::DOM::SkipComments(buffer);
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PLY::Element out;
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if (PLY::Element::ParseElement(streamBuffer, buffer, &out)) {
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// add the element to the list of elements
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alElements.push_back(out);
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} else if (TokenMatch(buffer, "end_header", 10)) {
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// we have reached the end of the header
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break;
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} else {
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// ignore unknown header elements
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if (!streamBuffer.getNextLine(buffer))
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return false;
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}
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}
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if (!isBinary) // it would occur an error, if binary data start with values as space or line end.
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SkipSpacesAndLineEnd(buffer);
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ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseHeader() succeeded");
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return true;
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}
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// ------------------------------------------------------------------------------------------------
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bool PLY::DOM::ParseElementInstanceLists(IOStreamBuffer<char> &streamBuffer, std::vector<char> &buffer, PLYImporter *loader) {
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ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseElementInstanceLists() begin");
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alElementData.resize(alElements.size());
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std::vector<PLY::Element>::const_iterator i = alElements.begin();
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std::vector<PLY::ElementInstanceList>::iterator a = alElementData.begin();
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// parse all element instances
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// construct vertices and faces
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for (; i != alElements.end(); ++i, ++a) {
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if ((*i).eSemantic == EEST_Vertex || (*i).eSemantic == EEST_Face || (*i).eSemantic == EEST_TriStrip) {
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PLY::ElementInstanceList::ParseInstanceList(streamBuffer, buffer, &(*i), nullptr, loader);
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} else {
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(*a).alInstances.resize((*i).NumOccur);
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PLY::ElementInstanceList::ParseInstanceList(streamBuffer, buffer, &(*i), &(*a), nullptr);
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}
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}
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ASSIMP_LOG_VERBOSE_DEBUG("PLY::DOM::ParseElementInstanceLists() succeeded");
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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);
|
|
|
|
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];
|
|
const char *end = pCur + buffer.size();
|
|
// be sure to have enough storage
|
|
for (unsigned int i = 0; i < pcElement->NumOccur; ++i) {
|
|
if (p_pcOut)
|
|
PLY::ElementInstance::ParseInstance(pCur, end, pcElement, &p_pcOut->alInstances[i]);
|
|
else {
|
|
ElementInstance elt;
|
|
PLY::ElementInstance::ParseInstance(pCur, end, 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 char *end,
|
|
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, end, &(*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 char *end, 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, end)) {
|
|
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, end))
|
|
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, end);
|
|
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;
|
|
}
|
|
|
|
} // namespace Assimp
|
|
|
|
#endif // !! ASSIMP_BUILD_NO_PLY_IMPORTER
|