692 lines
23 KiB
C++
692 lines
23 KiB
C++
/*
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Open Asset Import Library (assimp)
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----------------------------------------------------------------------
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Copyright (c) 2006-2014, 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
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following 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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#ifndef ASSIMP_BUILD_NO_OPENGEX_IMPORTER
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#include "AssimpPCH.h"
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#include "OpenGEXImporter.h"
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#include "DefaultIOSystem.h"
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#include <openddlparser/OpenDDLParser.h>
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#include <vector>
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static const aiImporterDesc desc = {
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"Open Game Engine Exchange",
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"",
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"",
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"",
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aiImporterFlags_SupportTextFlavour,
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0,
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0,
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0,
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0,
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"ogex"
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};
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namespace Grammar {
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static const char *MetricType = "Metric";
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static const char *Metric_DistanceType = "distance";
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static const char *Metric_AngleType = "angle";
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static const char *Metric_TimeType = "time";
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static const char *Metric_UpType = "up";
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static const char *NameType = "Name";
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static const char *ObjectRefType = "ObjectRef";
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static const char *MaterialRefType = "MaterialRef";
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static const char *MetricKeyType = "key";
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static const char *GeometryNodeType = "GeometryNode";
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static const char *GeometryObjectType = "GeometryObject";
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static const char *TransformType = "Transform";
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static const char *MeshType = "Mesh";
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static const char *VertexArrayType = "VertexArray";
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static const char *IndexArrayType = "IndexArray";
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static const char *MaterialType = "Material";
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static const char *ColorType = "Color";
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static const char *TextureType = "Texture";
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enum TokenType {
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NoneType = -1,
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MetricToken,
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NameToken,
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ObjectRefToken,
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MaterialRefToken,
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MetricKeyToken,
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GeometryNodeToken,
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GeometryObjectToken,
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TransformToken,
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MeshToken,
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VertexArrayToken,
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IndexArrayToken,
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MaterialToken,
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ColorToken,
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TextureToken
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};
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static const char *ValidMetricToken[ 4 ] = {
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Metric_DistanceType,
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Metric_AngleType,
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Metric_TimeType,
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Metric_UpType
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};
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static int isValidMetricType( const char *token ) {
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if( NULL == token ) {
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return false;
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}
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int idx( -1 );
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for( size_t i = 0; i < 4; i++ ) {
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if( 0 == strncmp( ValidMetricToken[ i ], token, strlen( token ) ) ) {
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idx = (int) i;
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break;
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}
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}
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return idx;
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}
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static TokenType matchTokenType( const char *tokenType ) {
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if( 0 == strncmp( MetricType, tokenType, strlen( MetricType ) ) ) {
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return MetricToken;
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} else if( 0 == strncmp( NameType, tokenType, strlen( NameType ) ) ) {
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return NameToken;
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}
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else if( 0 == strncmp( ObjectRefType, tokenType, strlen( ObjectRefType ) ) ) {
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return ObjectRefToken;
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}
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else if( 0 == strncmp( MaterialRefType, tokenType, strlen( MaterialRefType ) ) ) {
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return MaterialRefToken;
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}
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else if( 0 == strncmp( MetricKeyType, tokenType, strlen( MetricKeyType ) ) ) {
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return MetricKeyToken;
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}
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else if( 0 == strncmp( GeometryNodeType, tokenType, strlen( GeometryNodeType ) ) ) {
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return GeometryNodeToken;
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}
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else if( 0 == strncmp( GeometryObjectType, tokenType, strlen( GeometryObjectType ) ) ) {
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return GeometryObjectToken;
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}
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else if( 0 == strncmp( TransformType, tokenType, strlen( TransformType ) ) ) {
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return TransformToken;
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}
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else if( 0 == strncmp( MeshType, tokenType, strlen( MeshType ) ) ) {
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return MeshToken;
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}
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else if( 0 == strncmp( VertexArrayType, tokenType, strlen( VertexArrayType ) ) ) {
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return VertexArrayToken;
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}
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else if( 0 == strncmp( IndexArrayType, tokenType, strlen( IndexArrayType ) ) ) {
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return IndexArrayToken;
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}
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else if( 0 == strncmp( MaterialType, tokenType, strlen( MaterialType ) ) ) {
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return MaterialToken;
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}
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else if( 0 == strncmp( ColorType, tokenType, strlen( ColorType ) ) ) {
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return ColorToken;
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}
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else if( 0 == strncmp( TextureType, tokenType, strlen( TextureType ) ) ) {
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return TextureToken;
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}
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return NoneType;
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}
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} // Namespace Grammar
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namespace Assimp {
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namespace OpenGEX {
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USE_ODDLPARSER_NS
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//------------------------------------------------------------------------------------------------
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OpenGEXImporter::RefInfo::RefInfo( aiNode *node, Type type, std::vector<std::string> &names )
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: m_node( node )
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, m_type( type )
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, m_Names( names ) {
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// empty
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}
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//------------------------------------------------------------------------------------------------
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OpenGEXImporter::RefInfo::~RefInfo() {
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// empty
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}
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//------------------------------------------------------------------------------------------------
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OpenGEXImporter::OpenGEXImporter()
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: m_meshCache()
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, m_mesh2refMap()
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, m_ctx( NULL )
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, m_currentNode( NULL )
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, m_currentMesh( NULL )
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, m_nodeStack()
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, m_unresolvedRefStack() {
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// empty
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}
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//------------------------------------------------------------------------------------------------
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OpenGEXImporter::~OpenGEXImporter() {
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m_ctx = NULL;
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}
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//------------------------------------------------------------------------------------------------
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bool OpenGEXImporter::CanRead( const std::string &file, IOSystem *pIOHandler, bool checkSig ) const {
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bool canRead( false );
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if( !checkSig ) {
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canRead = SimpleExtensionCheck( file, "ogex" );
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} else {
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static const char *token[] = { "Metric", "GeometryNode", "VertexArray (attrib", "IndexArray" };
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canRead = BaseImporter::SearchFileHeaderForToken( pIOHandler, file, token, 4 );
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}
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return canRead;
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::InternReadFile( const std::string &filename, aiScene *pScene, IOSystem *pIOHandler ) {
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// open source file
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IOStream *file = pIOHandler->Open( filename, "rb" );
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if( !file ) {
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throw DeadlyImportError( "Failed to open file " + filename );
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}
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std::vector<char> buffer;
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TextFileToBuffer( file, buffer );
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OpenDDLParser myParser;
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myParser.setBuffer( &buffer[ 0 ], buffer.size() );
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bool success( myParser.parse() );
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if( success ) {
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m_ctx = myParser.getContext();
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pScene->mRootNode = new aiNode;
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pScene->mRootNode->mName.Set( filename );
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handleNodes( m_ctx->m_root, pScene );
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}
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resolveReferences();
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}
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//------------------------------------------------------------------------------------------------
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const aiImporterDesc *OpenGEXImporter::GetInfo() const {
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return &desc;
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::SetupProperties( const Importer *pImp ) {
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if( NULL == pImp ) {
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return;
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleNodes( DDLNode *node, aiScene *pScene ) {
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if( NULL == node ) {
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return;
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}
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DDLNode::DllNodeList childs = node->getChildNodeList();
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for( DDLNode::DllNodeList::iterator it = childs.begin(); it != childs.end(); it++ ) {
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Grammar::TokenType tokenType( Grammar::matchTokenType( ( *it )->getType().c_str() ) );
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switch( tokenType ) {
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case Grammar::MetricToken:
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handleMetricNode( *it, pScene );
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break;
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case Grammar::NameToken:
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handleNameNode( *it, pScene );
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break;
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case Grammar::ObjectRefToken:
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handleObjectRefNode( *it, pScene );
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break;
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case Grammar::MaterialRefToken:
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handleMaterialRefNode( *it, pScene );
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break;
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case Grammar::MetricKeyToken:
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break;
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case Grammar::GeometryNodeToken:
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handleGeometryNode( *it, pScene );
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break;
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case Grammar::GeometryObjectToken:
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handleGeometryObject( *it, pScene );
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break;
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case Grammar::TransformToken:
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handleTransformNode( *it, pScene );
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break;
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case Grammar::MeshToken:
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handleMeshNode( *it, pScene );
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break;
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case Grammar::VertexArrayToken:
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handleVertexArrayNode( *it, pScene );
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break;
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case Grammar::IndexArrayToken:
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handleIndexArrayNode( *it, pScene );
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break;
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case Grammar::MaterialToken:
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handleMaterialNode( *it, pScene );
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break;
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case Grammar::ColorToken:
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handleColorNode( *it, pScene );
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break;
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case Grammar::TextureToken:
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handleTextureNode( *it, pScene );
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break;
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default:
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break;
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}
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleMetricNode( DDLNode *node, aiScene *pScene ) {
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if( NULL == node || NULL == m_ctx ) {
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return;
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}
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if( m_ctx->m_root != node->getParent() ) {
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return;
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}
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Property *prop( node->getProperties() );
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while( NULL != prop ) {
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if( NULL != prop->m_id ) {
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if( Value::ddl_string == prop->m_primData->m_type ) {
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std::string valName( (char*) prop->m_primData->m_data );
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int type( Grammar::isValidMetricType( valName.c_str() ) );
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if( Grammar::NoneType != type ) {
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Value *val( node->getValue() );
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if( NULL != val ) {
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if( Value::ddl_float == val->m_type ) {
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m_metrics[ type ].m_floatValue = val->getFloat();
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} else if( Value::ddl_int32 == val->m_type ) {
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m_metrics[ type ].m_intValue = val->getInt32();
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} else if( Value::ddl_string == val->m_type ) {
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m_metrics[type].m_stringValue = std::string( val->getString() );
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} else {
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throw DeadlyImportError( "OpenGEX: invalid data type for Metric node." );
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}
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}
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}
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}
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}
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prop = prop->m_next;
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleNameNode( DDLNode *node, aiScene *pScene ) {
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if( NULL == m_currentNode ) {
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throw DeadlyImportError( "No parent node for name." );
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return;
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}
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Value *val( node->getValue() );
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if( NULL != val ) {
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if( Value::ddl_string != val->m_type ) {
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throw DeadlyImportError( "OpenGEX: invalid data type for value in node name." );
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return;
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}
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const std::string name( val->getString() );
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m_currentNode->mName.Set( name.c_str() );
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}
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}
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//------------------------------------------------------------------------------------------------
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static void getRefNames( DDLNode *node, std::vector<std::string> &names ) {
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ai_assert( NULL != node );
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Reference *ref = node->getReferences();
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if( NULL != ref ) {
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for( size_t i = 0; i < ref->m_numRefs; i++ ) {
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Name *currentName( ref->m_referencedName[ i ] );
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if( NULL != currentName && NULL != currentName->m_id ) {
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const std::string name( currentName->m_id->m_buffer );
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if( !name.empty() ) {
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names.push_back( name );
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}
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}
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}
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleObjectRefNode( DDLNode *node, aiScene *pScene ) {
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if( NULL == m_currentNode ) {
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throw DeadlyImportError( "No parent node for name." );
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return;
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}
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std::vector<std::string> objRefNames;
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getRefNames( node, objRefNames );
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m_currentNode->mNumMeshes = objRefNames.size();
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m_currentNode->mMeshes = new unsigned int[ objRefNames.size() ];
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if( !objRefNames.empty() ) {
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m_unresolvedRefStack.push_back( new RefInfo( m_currentNode, RefInfo::MeshRef, objRefNames ) );
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleMaterialRefNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
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if( NULL == m_currentNode ) {
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throw DeadlyImportError( "No parent node for name." );
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return;
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}
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std::vector<std::string> matRefNames;
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getRefNames( node, matRefNames );
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if( !matRefNames.empty() ) {
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m_unresolvedRefStack.push_back( new RefInfo( m_currentNode, RefInfo::MaterialRef, matRefNames ) );
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleGeometryNode( DDLNode *node, aiScene *pScene ) {
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aiNode *newNode = new aiNode;
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pushNode( newNode, pScene );
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m_currentNode = newNode;
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handleNodes( node, pScene );
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popNode();
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleGeometryObject( DDLNode *node, aiScene *pScene ) {
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aiMesh *currentMesh( new aiMesh );
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const size_t idx( m_meshCache.size() );
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m_meshCache.push_back( currentMesh );
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// store name to reference relation
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m_mesh2refMap[ node->getName() ] = idx;
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// todo: child nodes?
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handleNodes( node, pScene );
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}
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//------------------------------------------------------------------------------------------------
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static void setMatrix( aiNode *node, DataArrayList *transformData ) {
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ai_assert( NULL != node );
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ai_assert( NULL != transformData );
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float m[ 16 ];
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size_t i( 1 );
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Value *next( transformData->m_dataList->m_next );
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m[ 0 ] = transformData->m_dataList->getFloat();
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while( next != NULL ) {
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m[ i ] = next->getFloat();
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next = next->m_next;
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i++;
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}
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node->mTransformation.a1 = m[ 0 ];
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node->mTransformation.a2 = m[ 1 ];
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node->mTransformation.a3 = m[ 2 ];
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node->mTransformation.a4 = m[ 3 ];
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node->mTransformation.b1 = m[ 4 ];
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node->mTransformation.b2 = m[ 5 ];
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node->mTransformation.b3 = m[ 6 ];
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node->mTransformation.b4 = m[ 7 ];
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node->mTransformation.c1 = m[ 8 ];
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node->mTransformation.c2 = m[ 9 ];
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node->mTransformation.c3 = m[ 10 ];
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node->mTransformation.c4 = m[ 11 ];
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node->mTransformation.d1 = m[ 12 ];
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node->mTransformation.d2 = m[ 13 ];
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node->mTransformation.d3 = m[ 14 ];
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node->mTransformation.d4 = m[ 15 ];
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleTransformNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
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if( NULL == m_currentNode ) {
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throw DeadlyImportError( "No parent node for name." );
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return;
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}
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DataArrayList *transformData( node->getDataArrayList() );
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if( NULL != transformData ) {
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if( transformData->m_numItems != 16 ) {
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throw DeadlyImportError( "Invalid number of data for transform matrix." );
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return;
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}
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setMatrix( m_currentNode, transformData );
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}
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}
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//------------------------------------------------------------------------------------------------
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static void propId2StdString( Property *prop, std::string &name, std::string &key ) {
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name = key = "";
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if( NULL == prop ) {
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return;
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}
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if( NULL != prop->m_id ) {
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name = prop->m_id->m_buffer;
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if( Value::ddl_string == prop->m_primData->m_type ) {
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key = prop->m_primData->getString();
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}
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}
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}
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//------------------------------------------------------------------------------------------------
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void OpenGEXImporter::handleMeshNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
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Property *prop = node->getProperties();
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m_currentMesh = new aiMesh;
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m_meshCache.push_back( m_currentMesh );
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if( NULL != prop ) {
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std::string propName, propKey;
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propId2StdString( prop, propName, propKey );
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if( "triangles" == propName ) {
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m_currentMesh->mPrimitiveTypes |= aiPrimitiveType_TRIANGLE;
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}
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}
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handleNodes( node, pScene );
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}
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//------------------------------------------------------------------------------------------------
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enum MeshAttribute {
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None,
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Position,
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Normal,
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TexCoord
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};
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//------------------------------------------------------------------------------------------------
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static MeshAttribute getAttributeByName( const char *attribName ) {
|
|
ai_assert( NULL != attribName );
|
|
|
|
if( 0 == strncmp( "position", attribName, strlen( "position" ) ) ) {
|
|
return Position;
|
|
} else if( 0 == strncmp( "normal", attribName, strlen( "normal" ) ) ) {
|
|
return Normal;
|
|
} else if( 0 == strncmp( "texcoord", attribName, strlen( "texcoord" ) ) ) {
|
|
return TexCoord;
|
|
}
|
|
|
|
return None;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::handleVertexArrayNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
|
|
if( NULL == node ) {
|
|
throw DeadlyImportError( "No parent node for name." );
|
|
return;
|
|
}
|
|
|
|
Property *prop( node->getProperties() );
|
|
if( NULL != prop ) {
|
|
std::string propName, propKey;
|
|
propId2StdString( prop, propName, propKey );
|
|
MeshAttribute attribType( getAttributeByName( propName.c_str() ) );
|
|
if( None == attribType ) {
|
|
return;
|
|
}
|
|
|
|
DataArrayList *vaList = node->getDataArrayList();
|
|
if( NULL == vaList ) {
|
|
return;
|
|
}
|
|
|
|
if( Position == attribType ) {
|
|
aiVector3D *pos = new aiVector3D[ vaList->m_numItems ];
|
|
Value *next( vaList->m_dataList );
|
|
for( size_t i = 0; i < vaList->m_numItems; i++ ) {
|
|
|
|
}
|
|
} else if( Normal == attribType ) {
|
|
aiVector3D *normal = new aiVector3D[ vaList->m_numItems ];
|
|
} else if( TexCoord == attribType ) {
|
|
aiVector3D *tex = new aiVector3D[ vaList->m_numItems ];
|
|
}
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::handleIndexArrayNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::handleMaterialNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::resolveReferences() {
|
|
if( m_unresolvedRefStack.empty() ) {
|
|
return;
|
|
}
|
|
|
|
RefInfo *currentRefInfo( NULL );
|
|
for( std::vector<RefInfo*>::iterator it = m_unresolvedRefStack.begin(); it != m_unresolvedRefStack.end(); ++it ) {
|
|
currentRefInfo = *it;
|
|
if( NULL != currentRefInfo ) {
|
|
aiNode *node( currentRefInfo->m_node );
|
|
if( RefInfo::MeshRef == currentRefInfo->m_type ) {
|
|
for( size_t i = 0; i < currentRefInfo->m_Names.size(); i++ ) {
|
|
const std::string &name(currentRefInfo->m_Names[ i ] );
|
|
unsigned int meshIdx = m_mesh2refMap[ name ];
|
|
node->mMeshes[ i ] = meshIdx;
|
|
}
|
|
} else if( RefInfo::MaterialRef == currentRefInfo->m_type ) {
|
|
// ToDo
|
|
} else {
|
|
throw DeadlyImportError( "Unknown reference info to resolve." );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::handleColorNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::handleTextureNode( ODDLParser::DDLNode *node, aiScene *pScene ) {
|
|
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::pushNode( aiNode *node, aiScene *pScene ) {
|
|
ai_assert( NULL != pScene );
|
|
|
|
if( NULL != node ) {
|
|
if( m_nodeStack.empty() ) {
|
|
node->mParent = pScene->mRootNode;
|
|
} else {
|
|
aiNode *parent( m_nodeStack.back() );
|
|
ai_assert( NULL != parent );
|
|
node->mParent = parent;
|
|
}
|
|
m_nodeStack.push_back( node );
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
aiNode *OpenGEXImporter::popNode() {
|
|
if( m_nodeStack.empty() ) {
|
|
return NULL;
|
|
}
|
|
|
|
aiNode *node( top() );
|
|
m_nodeStack.pop_back();
|
|
|
|
return node;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
aiNode *OpenGEXImporter::top() const {
|
|
if( m_nodeStack.empty() ) {
|
|
return NULL;
|
|
}
|
|
|
|
return m_nodeStack.back();
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
void OpenGEXImporter::clearNodeStack() {
|
|
m_nodeStack.clear();
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
|
|
} // Namespace OpenGEX
|
|
} // Namespace Assimp
|
|
|
|
#endif // ASSIMP_BUILD_NO_OPENGEX_IMPORTER
|