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@@ -0,0 +1,2801 @@
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+/*
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+---------------------------------------------------------------------------
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+Open Asset Import Library (ASSIMP)
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+---------------------------------------------------------------------------
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+
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+Copyright (c) 2006-2010, ASSIMP Development Team
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+
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+All rights reserved.
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+
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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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+
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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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+
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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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+
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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 Development Team.
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+
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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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+
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+/** @file ColladaParser.cpp
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+ * @brief Implementation of the Collada parser helper
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+ */
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+
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+#include "AssimpPCH.h"
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+#ifndef ASSIMP_BUILD_NO_DAE_IMPORTER
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+
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+#include "ColladaParser.h"
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+#include "fast_atof.h"
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+#include "ParsingUtils.h"
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+
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+using namespace Assimp;
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+using namespace Assimp::Collada;
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+
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+// ------------------------------------------------------------------------------------------------
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+// Constructor to be privately used by Importer
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+ColladaParser::ColladaParser( IOSystem* pIOHandler, const std::string& pFile)
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+ : mFileName( pFile)
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+{
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+ mRootNode = NULL;
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+ mUnitSize = 1.0f;
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+ mUpDirection = UP_Z;
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+
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+ // We assume the newest file format by default
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+ mFormat = FV_1_5_n;
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+
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+ // open the file
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+ boost::scoped_ptr<IOStream> file( pIOHandler->Open( pFile));
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+ if( file.get() == NULL)
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+ throw DeadlyImportError( "Failed to open file " + pFile + ".");
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+
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+ // generate a XML reader for it
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+ boost::scoped_ptr<CIrrXML_IOStreamReader> mIOWrapper( new CIrrXML_IOStreamReader( file.get()));
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+ mReader = irr::io::createIrrXMLReader( mIOWrapper.get());
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+ if( !mReader)
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+ ThrowException( "Collada: Unable to open file.");
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+
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+ // start reading
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+ ReadContents();
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+}
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+
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+// ------------------------------------------------------------------------------------------------
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+// Destructor, private as well
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+ColladaParser::~ColladaParser()
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+{
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+ delete mReader;
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+ for( NodeLibrary::iterator it = mNodeLibrary.begin(); it != mNodeLibrary.end(); ++it)
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+ delete it->second;
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+ for( MeshLibrary::iterator it = mMeshLibrary.begin(); it != mMeshLibrary.end(); ++it)
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+ delete it->second;
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+}
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+
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+// ------------------------------------------------------------------------------------------------
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+// Read bool from text contents of current element
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+bool ColladaParser::ReadBoolFromTextContent()
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+{
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+ const char* cur = GetTextContent();
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+ return (!ASSIMP_strincmp(cur,"true",4) || '0' != *cur);
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+}
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+
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+// ------------------------------------------------------------------------------------------------
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+// Read float from text contents of current element
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+float ColladaParser::ReadFloatFromTextContent()
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+{
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+ const char* cur = GetTextContent();
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+ return fast_atof(cur);
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+}
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+
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+// ------------------------------------------------------------------------------------------------
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+// Reads the contents of the file
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+void ColladaParser::ReadContents()
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+{
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+ while( mReader->read())
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+ {
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+ // handle the root element "COLLADA"
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+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
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+ {
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+ if( IsElement( "COLLADA"))
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+ {
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+ // check for 'version' attribute
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+ const int attrib = TestAttribute("version");
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+ if (attrib != -1) {
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+ const char* version = mReader->getAttributeValue(attrib);
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+
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+ if (!::strncmp(version,"1.5",3)) {
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+ mFormat = FV_1_5_n;
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+ DefaultLogger::get()->debug("Collada schema version is 1.5.n");
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+ }
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+ else if (!::strncmp(version,"1.4",3)) {
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+ mFormat = FV_1_4_n;
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+ DefaultLogger::get()->debug("Collada schema version is 1.4.n");
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+ }
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+ else if (!::strncmp(version,"1.3",3)) {
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+ mFormat = FV_1_3_n;
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+ DefaultLogger::get()->debug("Collada schema version is 1.3.n");
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+ }
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+ }
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+
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+ ReadStructure();
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+ } else
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+ {
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+ DefaultLogger::get()->debug( boost::str( boost::format( "Ignoring global element \"%s\".") % mReader->getNodeName()));
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+ SkipElement();
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+ }
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+ } else
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+ {
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+ // skip everything else silently
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+ }
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+ }
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+}
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+
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+// ------------------------------------------------------------------------------------------------
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+// Reads the structure of the file
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+void ColladaParser::ReadStructure()
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+{
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+ while( mReader->read())
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+ {
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+ // beginning of elements
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+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
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+ {
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+ if( IsElement( "asset"))
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+ ReadAssetInfo();
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+ else if( IsElement( "library_animations"))
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+ ReadAnimationLibrary();
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+ else if( IsElement( "library_controllers"))
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+ ReadControllerLibrary();
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+ else if( IsElement( "library_images"))
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+ ReadImageLibrary();
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+ else if( IsElement( "library_materials"))
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+ ReadMaterialLibrary();
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+ else if( IsElement( "library_effects"))
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+ ReadEffectLibrary();
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+ else if( IsElement( "library_geometries"))
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+ ReadGeometryLibrary();
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+ else if( IsElement( "library_visual_scenes"))
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+ ReadSceneLibrary();
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+ else if( IsElement( "library_lights"))
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+ ReadLightLibrary();
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+ else if( IsElement( "library_cameras"))
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+ ReadCameraLibrary();
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+ else if( IsElement( "library_nodes"))
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+ ReadSceneNode(NULL); /* some hacking to reuse this piece of code */
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+ else if( IsElement( "scene"))
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+ ReadScene();
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+ else
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+ SkipElement();
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+ }
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+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
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+ {
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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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+// ------------------------------------------------------------------------------------------------
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+// Reads asset informations such as coordinate system informations and legal blah
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+void ColladaParser::ReadAssetInfo()
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+{
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+ if( mReader->isEmptyElement())
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+ return;
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+
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+ while( mReader->read())
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+ {
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+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
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+ {
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+ if( IsElement( "unit"))
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+ {
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+ // read unit data from the element's attributes
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+ const int attrIndex = TestAttribute( "meter");
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+ if (attrIndex == -1) {
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+ mUnitSize = 1.f;
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+ }
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+ else {
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+ mUnitSize = mReader->getAttributeValueAsFloat( attrIndex);
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+ }
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+
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+ // consume the trailing stuff
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+ if( !mReader->isEmptyElement())
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+ SkipElement();
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+ }
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+ else if( IsElement( "up_axis"))
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+ {
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+ // read content, strip whitespace, compare
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+ const char* content = GetTextContent();
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+ if( strncmp( content, "X_UP", 4) == 0)
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+ mUpDirection = UP_X;
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+ else if( strncmp( content, "Y_UP", 4) == 0)
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+ mUpDirection = UP_Y;
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+ else
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+ mUpDirection = UP_Z;
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+
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+ // check element end
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+ TestClosing( "up_axis");
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+ } else
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+ {
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+ SkipElement();
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+ }
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+ }
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+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
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+ {
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+ if( strcmp( mReader->getNodeName(), "asset") != 0)
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+ ThrowException( "Expected end of \"asset\" element.");
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+
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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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+// ------------------------------------------------------------------------------------------------
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+// Reads the animation library
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+void ColladaParser::ReadAnimationLibrary()
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+{
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+ if (mReader->isEmptyElement())
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+ return;
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+
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+ while( mReader->read())
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+ {
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+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
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+ {
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+ if( IsElement( "animation"))
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+ {
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+ // delegate the reading. Depending on the inner elements it will be a container or a anim channel
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+ ReadAnimation( &mAnims);
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+ } else
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+ {
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+ // ignore the rest
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+ SkipElement();
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+ }
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+ }
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+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
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+ {
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+ if( strcmp( mReader->getNodeName(), "library_animations") != 0)
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+ ThrowException( "Expected end of \"library_animations\" element.");
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+
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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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+// ------------------------------------------------------------------------------------------------
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+// Reads an animation into the given parent structure
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+void ColladaParser::ReadAnimation( Collada::Animation* pParent)
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+{
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+ if( mReader->isEmptyElement())
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+ return;
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+
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+ // an <animation> element may be a container for grouping sub-elements or an animation channel
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+ // this is the channel collection by ID, in case it has channels
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+ typedef std::map<std::string, AnimationChannel> ChannelMap;
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+ ChannelMap channels;
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+ // this is the anim container in case we're a container
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+ Animation* anim = NULL;
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+
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+ // optional name given as an attribute
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+ std::string animName;
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+ int indexName = TestAttribute( "name");
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+ int indexID = TestAttribute( "id");
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+ if( indexName >= 0)
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+ animName = mReader->getAttributeValue( indexName);
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+ else if( indexID >= 0)
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+ animName = mReader->getAttributeValue( indexID);
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+ else
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+ animName = "animation";
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+
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+ while( mReader->read())
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+ {
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+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
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+ {
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+ // we have subanimations
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+ if( IsElement( "animation"))
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+ {
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+ // create container from our element
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+ if( !anim)
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+ {
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+ anim = new Animation;
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+ anim->mName = animName;
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+ pParent->mSubAnims.push_back( anim);
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+ }
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+
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+ // recurse into the subelement
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+ ReadAnimation( anim);
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+ }
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+ else if( IsElement( "source"))
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+ {
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+ // possible animation data - we'll never know. Better store it
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+ ReadSource();
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+ }
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+ else if( IsElement( "sampler"))
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+ {
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+ // read the ID to assign the corresponding collada channel afterwards.
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+ int indexID = GetAttribute( "id");
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+ std::string id = mReader->getAttributeValue( indexID);
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+ ChannelMap::iterator newChannel = channels.insert( std::make_pair( id, AnimationChannel())).first;
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+
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+ // have it read into a channel
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+ ReadAnimationSampler( newChannel->second);
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+ }
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+ else if( IsElement( "channel"))
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+ {
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+ // the binding element whose whole purpose is to provide the target to animate
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+ // Thanks, Collada! A directly posted information would have been too simple, I guess.
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+ // Better add another indirection to that! Can't have enough of those.
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+ int indexTarget = GetAttribute( "target");
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+ int indexSource = GetAttribute( "source");
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+ const char* sourceId = mReader->getAttributeValue( indexSource);
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+ if( sourceId[0] == '#')
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+ sourceId++;
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+ ChannelMap::iterator cit = channels.find( sourceId);
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+ if( cit != channels.end())
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+ cit->second.mTarget = mReader->getAttributeValue( indexTarget);
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+
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+ if( !mReader->isEmptyElement())
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+ SkipElement();
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+ }
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+ else
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+ {
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+ // ignore the rest
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+ SkipElement();
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+ }
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+ }
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+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
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+ {
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+ if( strcmp( mReader->getNodeName(), "animation") != 0)
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+ ThrowException( "Expected end of \"animation\" element.");
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+
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+ break;
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+ }
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+ }
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+
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+ // it turned out to have channels - add them
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+ if( !channels.empty())
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+ {
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+ // special filtering for stupid exporters packing each channel into a separate animation
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+ if( channels.size() == 1)
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+ {
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+ pParent->mChannels.push_back( channels.begin()->second);
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+ } else
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+ {
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+ // else create the animation, if not done yet, and store the channels
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+ if( !anim)
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+ {
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+ anim = new Animation;
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+ anim->mName = animName;
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+ pParent->mSubAnims.push_back( anim);
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+ }
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+ for( ChannelMap::const_iterator it = channels.begin(); it != channels.end(); ++it)
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+ anim->mChannels.push_back( it->second);
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+ }
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+ }
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+}
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+
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+// ------------------------------------------------------------------------------------------------
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+// Reads an animation sampler into the given anim channel
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+void ColladaParser::ReadAnimationSampler( Collada::AnimationChannel& pChannel)
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+{
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+ while( mReader->read())
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+ {
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+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
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+ {
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+ if( IsElement( "input"))
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+ {
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+ int indexSemantic = GetAttribute( "semantic");
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+ const char* semantic = mReader->getAttributeValue( indexSemantic);
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+ int indexSource = GetAttribute( "source");
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+ const char* source = mReader->getAttributeValue( indexSource);
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+ if( source[0] != '#')
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+ ThrowException( "Unsupported URL format");
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+ source++;
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+
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+ if( strcmp( semantic, "INPUT") == 0)
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+ pChannel.mSourceTimes = source;
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+ else if( strcmp( semantic, "OUTPUT") == 0)
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+ pChannel.mSourceValues = source;
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+
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+ if( !mReader->isEmptyElement())
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+ SkipElement();
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+ }
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+ else
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+ {
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+ // ignore the rest
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+ SkipElement();
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+ }
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+ }
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+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
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+ {
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+ if( strcmp( mReader->getNodeName(), "sampler") != 0)
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+ ThrowException( "Expected end of \"sampler\" element.");
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+
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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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|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the skeleton controller library
|
|
|
+void ColladaParser::ReadControllerLibrary()
|
|
|
+{
|
|
|
+ if (mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "controller"))
|
|
|
+ {
|
|
|
+ // read ID. Ask the spec if it's neccessary or optional... you might be surprised.
|
|
|
+ int attrID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // create an entry and store it in the library under its ID
|
|
|
+ mControllerLibrary[id] = Controller();
|
|
|
+
|
|
|
+ // read on from there
|
|
|
+ ReadController( mControllerLibrary[id]);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_controllers") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_controllers\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a controller into the given mesh structure
|
|
|
+void ColladaParser::ReadController( Collada::Controller& pController)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ // two types of controllers: "skin" and "morph". Only the first one is relevant, we skip the other
|
|
|
+ if( IsElement( "morph"))
|
|
|
+ {
|
|
|
+ // should skip everything inside, so there's no danger of catching elements inbetween
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if( IsElement( "skin"))
|
|
|
+ {
|
|
|
+ // read the mesh it refers to. According to the spec this could also be another
|
|
|
+ // controller, but I refuse to implement every bullshit idea they've come up with
|
|
|
+ int sourceIndex = GetAttribute( "source");
|
|
|
+ pController.mMeshId = mReader->getAttributeValue( sourceIndex) + 1;
|
|
|
+ }
|
|
|
+ else if( IsElement( "bind_shape_matrix"))
|
|
|
+ {
|
|
|
+ // content is 16 floats to define a matrix... it seems to be important for some models
|
|
|
+ const char* content = GetTextContent();
|
|
|
+
|
|
|
+ // read the 16 floats
|
|
|
+ for( unsigned int a = 0; a < 16; a++)
|
|
|
+ {
|
|
|
+ // read a number
|
|
|
+ content = fast_atof_move( content, pController.mBindShapeMatrix[a]);
|
|
|
+ // skip whitespace after it
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ }
|
|
|
+
|
|
|
+ TestClosing( "bind_shape_matrix");
|
|
|
+ }
|
|
|
+ else if( IsElement( "source"))
|
|
|
+ {
|
|
|
+ // data array - we have specialists to handle this
|
|
|
+ ReadSource();
|
|
|
+ }
|
|
|
+ else if( IsElement( "joints"))
|
|
|
+ {
|
|
|
+ ReadControllerJoints( pController);
|
|
|
+ }
|
|
|
+ else if( IsElement( "vertex_weights"))
|
|
|
+ {
|
|
|
+ ReadControllerWeights( pController);
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "controller") == 0)
|
|
|
+ break;
|
|
|
+ else if( strcmp( mReader->getNodeName(), "skin") != 0)
|
|
|
+ ThrowException( "Expected end of \"controller\" element.");
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the joint definitions for the given controller
|
|
|
+void ColladaParser::ReadControllerJoints( Collada::Controller& pController)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ // Input channels for joint data. Two possible semantics: "JOINT" and "INV_BIND_MATRIX"
|
|
|
+ if( IsElement( "input"))
|
|
|
+ {
|
|
|
+ int indexSemantic = GetAttribute( "semantic");
|
|
|
+ const char* attrSemantic = mReader->getAttributeValue( indexSemantic);
|
|
|
+ int indexSource = GetAttribute( "source");
|
|
|
+ const char* attrSource = mReader->getAttributeValue( indexSource);
|
|
|
+
|
|
|
+ // local URLS always start with a '#'. We don't support global URLs
|
|
|
+ if( attrSource[0] != '#')
|
|
|
+ ThrowException( boost::str( boost::format( "Unsupported URL format in \"%s\"") % attrSource));
|
|
|
+ attrSource++;
|
|
|
+
|
|
|
+ // parse source URL to corresponding source
|
|
|
+ if( strcmp( attrSemantic, "JOINT") == 0)
|
|
|
+ pController.mJointNameSource = attrSource;
|
|
|
+ else if( strcmp( attrSemantic, "INV_BIND_MATRIX") == 0)
|
|
|
+ pController.mJointOffsetMatrixSource = attrSource;
|
|
|
+ else
|
|
|
+ ThrowException( boost::str( boost::format( "Unknown semantic \"%s\" in joint data") % attrSemantic));
|
|
|
+
|
|
|
+ // skip inner data, if present
|
|
|
+ if( !mReader->isEmptyElement())
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "joints") != 0)
|
|
|
+ ThrowException( "Expected end of \"joints\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the joint weights for the given controller
|
|
|
+void ColladaParser::ReadControllerWeights( Collada::Controller& pController)
|
|
|
+{
|
|
|
+ // read vertex count from attributes and resize the array accordingly
|
|
|
+ int indexCount = GetAttribute( "count");
|
|
|
+ size_t vertexCount = (size_t) mReader->getAttributeValueAsInt( indexCount);
|
|
|
+ pController.mWeightCounts.resize( vertexCount);
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ // Input channels for weight data. Two possible semantics: "JOINT" and "WEIGHT"
|
|
|
+ if( IsElement( "input"))
|
|
|
+ {
|
|
|
+ InputChannel channel;
|
|
|
+
|
|
|
+ int indexSemantic = GetAttribute( "semantic");
|
|
|
+ const char* attrSemantic = mReader->getAttributeValue( indexSemantic);
|
|
|
+ int indexSource = GetAttribute( "source");
|
|
|
+ const char* attrSource = mReader->getAttributeValue( indexSource);
|
|
|
+ int indexOffset = TestAttribute( "offset");
|
|
|
+ if( indexOffset >= 0)
|
|
|
+ channel.mOffset = mReader->getAttributeValueAsInt( indexOffset);
|
|
|
+
|
|
|
+ // local URLS always start with a '#'. We don't support global URLs
|
|
|
+ if( attrSource[0] != '#')
|
|
|
+ ThrowException( boost::str( boost::format( "Unsupported URL format in \"%s\"") % attrSource));
|
|
|
+ channel.mAccessor = attrSource + 1;
|
|
|
+
|
|
|
+ // parse source URL to corresponding source
|
|
|
+ if( strcmp( attrSemantic, "JOINT") == 0)
|
|
|
+ pController.mWeightInputJoints = channel;
|
|
|
+ else if( strcmp( attrSemantic, "WEIGHT") == 0)
|
|
|
+ pController.mWeightInputWeights = channel;
|
|
|
+ else
|
|
|
+ ThrowException( boost::str( boost::format( "Unknown semantic \"%s\" in vertex_weight data") % attrSemantic));
|
|
|
+
|
|
|
+ // skip inner data, if present
|
|
|
+ if( !mReader->isEmptyElement())
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if( IsElement( "vcount"))
|
|
|
+ {
|
|
|
+ // read weight count per vertex
|
|
|
+ const char* text = GetTextContent();
|
|
|
+ size_t numWeights = 0;
|
|
|
+ for( std::vector<size_t>::iterator it = pController.mWeightCounts.begin(); it != pController.mWeightCounts.end(); ++it)
|
|
|
+ {
|
|
|
+ if( *text == 0)
|
|
|
+ ThrowException( "Out of data while reading vcount");
|
|
|
+
|
|
|
+ *it = strtol10( text, &text);
|
|
|
+ numWeights += *it;
|
|
|
+ SkipSpacesAndLineEnd( &text);
|
|
|
+ }
|
|
|
+
|
|
|
+ TestClosing( "vcount");
|
|
|
+
|
|
|
+ // reserve weight count
|
|
|
+ pController.mWeights.resize( numWeights);
|
|
|
+ }
|
|
|
+ else if( IsElement( "v"))
|
|
|
+ {
|
|
|
+ // read JointIndex - WeightIndex pairs
|
|
|
+ const char* text = GetTextContent();
|
|
|
+
|
|
|
+ for( std::vector< std::pair<size_t, size_t> >::iterator it = pController.mWeights.begin(); it != pController.mWeights.end(); ++it)
|
|
|
+ {
|
|
|
+ if( *text == 0)
|
|
|
+ ThrowException( "Out of data while reading vertex_weights");
|
|
|
+ it->first = strtol10( text, &text);
|
|
|
+ SkipSpacesAndLineEnd( &text);
|
|
|
+ if( *text == 0)
|
|
|
+ ThrowException( "Out of data while reading vertex_weights");
|
|
|
+ it->second = strtol10( text, &text);
|
|
|
+ SkipSpacesAndLineEnd( &text);
|
|
|
+ }
|
|
|
+
|
|
|
+ TestClosing( "v");
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "vertex_weights") != 0)
|
|
|
+ ThrowException( "Expected end of \"vertex_weights\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the image library contents
|
|
|
+void ColladaParser::ReadImageLibrary()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "image"))
|
|
|
+ {
|
|
|
+ // read ID. Another entry which is "optional" by design but obligatory in reality
|
|
|
+ int attrID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // create an entry and store it in the library under its ID
|
|
|
+ mImageLibrary[id] = Image();
|
|
|
+
|
|
|
+ // read on from there
|
|
|
+ ReadImage( mImageLibrary[id]);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_images") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_images\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an image entry into the given image
|
|
|
+void ColladaParser::ReadImage( Collada::Image& pImage)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT){
|
|
|
+ // Need to run different code paths here, depending on the Collada XSD version
|
|
|
+ if (IsElement("image")) {
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if( IsElement( "init_from"))
|
|
|
+ {
|
|
|
+ if (mFormat == FV_1_4_n)
|
|
|
+ {
|
|
|
+ // FIX: C4D exporter writes empty <init_from/> tags
|
|
|
+ if (!mReader->isEmptyElement()) {
|
|
|
+ // element content is filename - hopefully
|
|
|
+ const char* sz = TestTextContent();
|
|
|
+ if (sz)pImage.mFileName = sz;
|
|
|
+ TestClosing( "init_from");
|
|
|
+ }
|
|
|
+ if (!pImage.mFileName.length()) {
|
|
|
+ pImage.mFileName = "unknown_texture";
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if (mFormat == FV_1_5_n)
|
|
|
+ {
|
|
|
+ // make sure we skip over mip and array initializations, which
|
|
|
+ // we don't support, but which could confuse the loader if
|
|
|
+ // they're not skipped.
|
|
|
+ int attrib = TestAttribute("array_index");
|
|
|
+ if (attrib != -1 && mReader->getAttributeValueAsInt(attrib) > 0) {
|
|
|
+ DefaultLogger::get()->warn("Collada: Ignoring texture array index");
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ attrib = TestAttribute("mip_index");
|
|
|
+ if (attrib != -1 && mReader->getAttributeValueAsInt(attrib) > 0) {
|
|
|
+ DefaultLogger::get()->warn("Collada: Ignoring MIP map layer");
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ // TODO: correctly jump over cube and volume maps?
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if (mFormat == FV_1_5_n)
|
|
|
+ {
|
|
|
+ if( IsElement( "ref"))
|
|
|
+ {
|
|
|
+ // element content is filename - hopefully
|
|
|
+ const char* sz = TestTextContent();
|
|
|
+ if (sz)pImage.mFileName = sz;
|
|
|
+ TestClosing( "ref");
|
|
|
+ }
|
|
|
+ else if( IsElement( "hex") && !pImage.mFileName.length())
|
|
|
+ {
|
|
|
+ // embedded image. get format
|
|
|
+ const int attrib = TestAttribute("format");
|
|
|
+ if (-1 == attrib)
|
|
|
+ DefaultLogger::get()->warn("Collada: Unknown image file format");
|
|
|
+ else pImage.mEmbeddedFormat = mReader->getAttributeValue(attrib);
|
|
|
+
|
|
|
+ const char* data = GetTextContent();
|
|
|
+
|
|
|
+ // hexadecimal-encoded binary octets. First of all, find the
|
|
|
+ // required buffer size to reserve enough storage.
|
|
|
+ const char* cur = data;
|
|
|
+ while (!IsSpaceOrNewLine(*cur)) cur++;
|
|
|
+
|
|
|
+ const unsigned int size = (unsigned int)(cur-data) * 2;
|
|
|
+ pImage.mImageData.resize(size);
|
|
|
+ for (unsigned int i = 0; i < size;++i)
|
|
|
+ pImage.mImageData[i] = HexOctetToDecimal(data+(i<<1));
|
|
|
+
|
|
|
+ TestClosing( "hex");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "image") == 0)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the material library
|
|
|
+void ColladaParser::ReadMaterialLibrary()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "material"))
|
|
|
+ {
|
|
|
+ // read ID. By now you propably know my opinion about this "specification"
|
|
|
+ int attrID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // create an entry and store it in the library under its ID
|
|
|
+ ReadMaterial(mMaterialLibrary[id] = Material());
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_materials") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_materials\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the light library
|
|
|
+void ColladaParser::ReadLightLibrary()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "light"))
|
|
|
+ {
|
|
|
+ // read ID. By now you propably know my opinion about this "specification"
|
|
|
+ int attrID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // create an entry and store it in the library under its ID
|
|
|
+ ReadLight(mLightLibrary[id] = Light());
|
|
|
+
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_lights") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_lights\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the camera library
|
|
|
+void ColladaParser::ReadCameraLibrary()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "camera"))
|
|
|
+ {
|
|
|
+ // read ID. By now you propably know my opinion about this "specification"
|
|
|
+ int attrID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // create an entry and store it in the library under its ID
|
|
|
+ Camera& cam = mCameraLibrary[id];
|
|
|
+ attrID = TestAttribute( "name");
|
|
|
+ if (attrID != -1)
|
|
|
+ cam.mName = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ ReadCamera(cam);
|
|
|
+
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_cameras") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_cameras\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a material entry into the given material
|
|
|
+void ColladaParser::ReadMaterial( Collada::Material& pMaterial)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if (IsElement("material")) {
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if( IsElement( "instance_effect"))
|
|
|
+ {
|
|
|
+ // referred effect by URL
|
|
|
+ int attrUrl = GetAttribute( "url");
|
|
|
+ const char* url = mReader->getAttributeValue( attrUrl);
|
|
|
+ if( url[0] != '#')
|
|
|
+ ThrowException( "Unknown reference format");
|
|
|
+
|
|
|
+ pMaterial.mEffect = url+1;
|
|
|
+
|
|
|
+ SkipElement();
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "material") != 0)
|
|
|
+ ThrowException( "Expected end of \"material\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a light entry into the given light
|
|
|
+void ColladaParser::ReadLight( Collada::Light& pLight)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if (IsElement("light")) {
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if (IsElement("spot")) {
|
|
|
+ pLight.mType = aiLightSource_SPOT;
|
|
|
+ }
|
|
|
+ else if (IsElement("ambient")) {
|
|
|
+ pLight.mType = aiLightSource_AMBIENT;
|
|
|
+ }
|
|
|
+ else if (IsElement("directional")) {
|
|
|
+ pLight.mType = aiLightSource_DIRECTIONAL;
|
|
|
+ }
|
|
|
+ else if (IsElement("point")) {
|
|
|
+ pLight.mType = aiLightSource_POINT;
|
|
|
+ }
|
|
|
+ else if (IsElement("color")) {
|
|
|
+ // text content contains 3 floats
|
|
|
+ const char* content = GetTextContent();
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pLight.mColor.r);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pLight.mColor.g);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pLight.mColor.b);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ TestClosing( "color");
|
|
|
+ }
|
|
|
+ else if (IsElement("constant_attenuation")) {
|
|
|
+ pLight.mAttConstant = ReadFloatFromTextContent();
|
|
|
+ TestClosing("constant_attenuation");
|
|
|
+ }
|
|
|
+ else if (IsElement("linear_attenuation")) {
|
|
|
+ pLight.mAttLinear = ReadFloatFromTextContent();
|
|
|
+ TestClosing("linear_attenuation");
|
|
|
+ }
|
|
|
+ else if (IsElement("quadratic_attenuation")) {
|
|
|
+ pLight.mAttQuadratic = ReadFloatFromTextContent();
|
|
|
+ TestClosing("quadratic_attenuation");
|
|
|
+ }
|
|
|
+ else if (IsElement("falloff_angle")) {
|
|
|
+ pLight.mFalloffAngle = ReadFloatFromTextContent();
|
|
|
+ TestClosing("falloff_angle");
|
|
|
+ }
|
|
|
+ else if (IsElement("falloff_exponent")) {
|
|
|
+ pLight.mFalloffExponent = ReadFloatFromTextContent();
|
|
|
+ TestClosing("falloff_exponent");
|
|
|
+ }
|
|
|
+ // FCOLLADA extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ else if (IsElement("outer_cone")) {
|
|
|
+ pLight.mOuterAngle = ReadFloatFromTextContent();
|
|
|
+ TestClosing("outer_cone");
|
|
|
+ }
|
|
|
+ // ... and this one is even deprecated
|
|
|
+ else if (IsElement("penumbra_angle")) {
|
|
|
+ pLight.mPenumbraAngle = ReadFloatFromTextContent();
|
|
|
+ TestClosing("penumbra_angle");
|
|
|
+ }
|
|
|
+ else if (IsElement("intensity")) {
|
|
|
+ pLight.mIntensity = ReadFloatFromTextContent();
|
|
|
+ TestClosing("intensity");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "light") == 0)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a camera entry into the given light
|
|
|
+void ColladaParser::ReadCamera( Collada::Camera& pCamera)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if (IsElement("camera")) {
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if (IsElement("orthographic")) {
|
|
|
+ pCamera.mOrtho = true;
|
|
|
+ }
|
|
|
+ else if (IsElement("xfov") || IsElement("xmag")) {
|
|
|
+ pCamera.mHorFov = ReadFloatFromTextContent();
|
|
|
+ TestClosing((pCamera.mOrtho ? "xmag" : "xfov"));
|
|
|
+ }
|
|
|
+ else if (IsElement("yfov") || IsElement("ymag")) {
|
|
|
+ pCamera.mVerFov = ReadFloatFromTextContent();
|
|
|
+ TestClosing((pCamera.mOrtho ? "ymag" : "yfov"));
|
|
|
+ }
|
|
|
+ else if (IsElement("aspect_ratio")) {
|
|
|
+ pCamera.mAspect = ReadFloatFromTextContent();
|
|
|
+ TestClosing("aspect_ratio");
|
|
|
+ }
|
|
|
+ else if (IsElement("znear")) {
|
|
|
+ pCamera.mZNear = ReadFloatFromTextContent();
|
|
|
+ TestClosing("znear");
|
|
|
+ }
|
|
|
+ else if (IsElement("zfar")) {
|
|
|
+ pCamera.mZFar = ReadFloatFromTextContent();
|
|
|
+ TestClosing("zfar");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "camera") == 0)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the effect library
|
|
|
+void ColladaParser::ReadEffectLibrary()
|
|
|
+{
|
|
|
+ if (mReader->isEmptyElement()) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "effect"))
|
|
|
+ {
|
|
|
+ // read ID. Do I have to repeat my ranting about "optional" attributes?
|
|
|
+ // Alex: .... no, not necessary. Please shut up and leave more space for
|
|
|
+ // me to complain about the fucking Collada spec with its fucking
|
|
|
+ // 'optional' attributes ...
|
|
|
+ int attrID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // create an entry and store it in the library under its ID
|
|
|
+ mEffectLibrary[id] = Effect();
|
|
|
+ // read on from there
|
|
|
+ ReadEffect( mEffectLibrary[id]);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_effects") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_effects\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an effect entry into the given effect
|
|
|
+void ColladaParser::ReadEffect( Collada::Effect& pEffect)
|
|
|
+{
|
|
|
+ // for the moment we don't support any other type of effect.
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "profile_COMMON"))
|
|
|
+ ReadEffectProfileCommon( pEffect);
|
|
|
+ else
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "effect") != 0)
|
|
|
+ ThrowException( "Expected end of \"effect\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an COMMON effect profile
|
|
|
+void ColladaParser::ReadEffectProfileCommon( Collada::Effect& pEffect)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "newparam")) {
|
|
|
+ // save ID
|
|
|
+ int attrSID = GetAttribute( "sid");
|
|
|
+ std::string sid = mReader->getAttributeValue( attrSID);
|
|
|
+ pEffect.mParams[sid] = EffectParam();
|
|
|
+ ReadEffectParam( pEffect.mParams[sid]);
|
|
|
+ }
|
|
|
+ else if( IsElement( "technique") || IsElement( "extra"))
|
|
|
+ {
|
|
|
+ // just syntactic sugar
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Shading modes */
|
|
|
+ else if( IsElement( "phong"))
|
|
|
+ pEffect.mShadeType = Shade_Phong;
|
|
|
+ else if( IsElement( "constant"))
|
|
|
+ pEffect.mShadeType = Shade_Constant;
|
|
|
+ else if( IsElement( "lambert"))
|
|
|
+ pEffect.mShadeType = Shade_Lambert;
|
|
|
+ else if( IsElement( "blinn"))
|
|
|
+ pEffect.mShadeType = Shade_Blinn;
|
|
|
+
|
|
|
+ /* Color + texture properties */
|
|
|
+ else if( IsElement( "emission"))
|
|
|
+ ReadEffectColor( pEffect.mEmissive, pEffect.mTexEmissive);
|
|
|
+ else if( IsElement( "ambient"))
|
|
|
+ ReadEffectColor( pEffect.mAmbient, pEffect.mTexAmbient);
|
|
|
+ else if( IsElement( "diffuse"))
|
|
|
+ ReadEffectColor( pEffect.mDiffuse, pEffect.mTexDiffuse);
|
|
|
+ else if( IsElement( "specular"))
|
|
|
+ ReadEffectColor( pEffect.mSpecular, pEffect.mTexSpecular);
|
|
|
+ else if( IsElement( "reflective")) {
|
|
|
+ ReadEffectColor( pEffect.mReflective, pEffect.mTexReflective);
|
|
|
+ }
|
|
|
+ else if( IsElement( "transparent")) {
|
|
|
+ ReadEffectColor( pEffect.mTransparent,pEffect.mTexTransparent);
|
|
|
+ }
|
|
|
+ else if( IsElement( "shininess"))
|
|
|
+ ReadEffectFloat( pEffect.mShininess);
|
|
|
+ else if( IsElement( "reflectivity"))
|
|
|
+ ReadEffectFloat( pEffect.mReflectivity);
|
|
|
+
|
|
|
+ /* Single scalar properties */
|
|
|
+ else if( IsElement( "transparency"))
|
|
|
+ ReadEffectFloat( pEffect.mTransparency);
|
|
|
+ else if( IsElement( "index_of_refraction"))
|
|
|
+ ReadEffectFloat( pEffect.mRefractIndex);
|
|
|
+
|
|
|
+ // GOOGLEEARTH/OKINO extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ else if( IsElement( "double_sided"))
|
|
|
+ pEffect.mDoubleSided = ReadBoolFromTextContent();
|
|
|
+
|
|
|
+ // FCOLLADA extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ else if( IsElement( "bump")) {
|
|
|
+ aiColor4D dummy;
|
|
|
+ ReadEffectColor( dummy,pEffect.mTexBump);
|
|
|
+ }
|
|
|
+
|
|
|
+ // MAX3D extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ else if( IsElement( "wireframe")) {
|
|
|
+ pEffect.mWireframe = ReadBoolFromTextContent();
|
|
|
+ TestClosing( "wireframe");
|
|
|
+ }
|
|
|
+ else if( IsElement( "faceted")) {
|
|
|
+ pEffect.mFaceted = ReadBoolFromTextContent();
|
|
|
+ TestClosing( "faceted");
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "profile_COMMON") == 0)
|
|
|
+ {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Read texture wrapping + UV transform settings from a profile==Maya chunk
|
|
|
+void ColladaParser::ReadSamplerProperties( Sampler& out )
|
|
|
+{
|
|
|
+ if (mReader->isEmptyElement()) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+
|
|
|
+ // MAYA extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ if( IsElement( "wrapU")) {
|
|
|
+ out.mWrapU = ReadBoolFromTextContent();
|
|
|
+ TestClosing( "wrapU");
|
|
|
+ }
|
|
|
+ else if( IsElement( "wrapV")) {
|
|
|
+ out.mWrapU = ReadBoolFromTextContent();
|
|
|
+ TestClosing( "wrapV");
|
|
|
+ }
|
|
|
+ else if( IsElement( "mirrorU")) {
|
|
|
+ out.mMirrorU = ReadBoolFromTextContent();
|
|
|
+ TestClosing( "mirrorU");
|
|
|
+ }
|
|
|
+ else if( IsElement( "mirrorV")) {
|
|
|
+ out.mMirrorU = ReadBoolFromTextContent();
|
|
|
+ TestClosing( "mirrorV");
|
|
|
+ }
|
|
|
+ else if( IsElement( "repeatU")) {
|
|
|
+ out.mTransform.mScaling.x = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "repeatU");
|
|
|
+ }
|
|
|
+ else if( IsElement( "repeatV")) {
|
|
|
+ out.mTransform.mScaling.y = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "repeatV");
|
|
|
+ }
|
|
|
+ else if( IsElement( "offsetU")) {
|
|
|
+ out.mTransform.mTranslation.x = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "offsetU");
|
|
|
+ }
|
|
|
+ else if( IsElement( "offsetV")) {
|
|
|
+ out.mTransform.mTranslation.x = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "offsetV");
|
|
|
+ }
|
|
|
+ else if( IsElement( "rotateUV")) {
|
|
|
+ out.mTransform.mRotation = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "rotateUV");
|
|
|
+ }
|
|
|
+ else if( IsElement( "blend_mode")) {
|
|
|
+
|
|
|
+ const char* sz = GetTextContent();
|
|
|
+ // http://www.feelingsoftware.com/content/view/55/72/lang,en/
|
|
|
+ // NONE, OVER, IN, OUT, ADD, SUBTRACT, MULTIPLY, DIFFERENCE, LIGHTEN, DARKEN, SATURATE, DESATURATE and ILLUMINATE
|
|
|
+ if (0 == ASSIMP_strincmp(sz,"ADD",3))
|
|
|
+ out.mOp = aiTextureOp_Add;
|
|
|
+
|
|
|
+ else if (0 == ASSIMP_strincmp(sz,"SUBTRACT",8))
|
|
|
+ out.mOp = aiTextureOp_Subtract;
|
|
|
+
|
|
|
+ else if (0 == ASSIMP_strincmp(sz,"MULTIPLY",8))
|
|
|
+ out.mOp = aiTextureOp_Multiply;
|
|
|
+
|
|
|
+ else {
|
|
|
+ DefaultLogger::get()->warn("Collada: Unsupported MAYA texture blend mode");
|
|
|
+ }
|
|
|
+ TestClosing( "blend_mode");
|
|
|
+ }
|
|
|
+ // OKINO extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ else if( IsElement( "weighting")) {
|
|
|
+ out.mWeighting = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "weighting");
|
|
|
+ }
|
|
|
+ else if( IsElement( "mix_with_previous_layer")) {
|
|
|
+ out.mMixWithPrevious = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "mix_with_previous_layer");
|
|
|
+ }
|
|
|
+ // MAX3D extensions
|
|
|
+ // -------------------------------------------------------
|
|
|
+ else if( IsElement( "amount")) {
|
|
|
+ out.mWeighting = ReadFloatFromTextContent();
|
|
|
+ TestClosing( "amount");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "technique") == 0)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an effect entry containing a color or a texture defining that color
|
|
|
+void ColladaParser::ReadEffectColor( aiColor4D& pColor, Sampler& pSampler)
|
|
|
+{
|
|
|
+ if (mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ // Save current element name
|
|
|
+ const std::string curElem = mReader->getNodeName();
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "color"))
|
|
|
+ {
|
|
|
+ // text content contains 4 floats
|
|
|
+ const char* content = GetTextContent();
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pColor.r);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pColor.g);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pColor.b);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ content = fast_atof_move( content, (float&)pColor.a);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ TestClosing( "color");
|
|
|
+ }
|
|
|
+ else if( IsElement( "texture"))
|
|
|
+ {
|
|
|
+ // get name of source textur/sampler
|
|
|
+ int attrTex = GetAttribute( "texture");
|
|
|
+ pSampler.mName = mReader->getAttributeValue( attrTex);
|
|
|
+
|
|
|
+ // get name of UV source channel
|
|
|
+ attrTex = GetAttribute( "texcoord");
|
|
|
+ pSampler.mUVChannel = mReader->getAttributeValue( attrTex);
|
|
|
+ //SkipElement();
|
|
|
+ }
|
|
|
+ else if( IsElement( "technique"))
|
|
|
+ {
|
|
|
+ const int _profile = GetAttribute( "profile");
|
|
|
+ const char* profile = mReader->getAttributeValue( _profile );
|
|
|
+
|
|
|
+ // Some extensions are quite useful ... ReadSamplerProperties processes
|
|
|
+ // several extensions in MAYA, OKINO and MAX3D profiles.
|
|
|
+ if (!::strcmp(profile,"MAYA") || !::strcmp(profile,"MAX3D") || !::strcmp(profile,"OKINO"))
|
|
|
+ {
|
|
|
+ // get more information on this sampler
|
|
|
+ ReadSamplerProperties(pSampler);
|
|
|
+ }
|
|
|
+ else SkipElement();
|
|
|
+ }
|
|
|
+ else if( !IsElement( "extra"))
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END){
|
|
|
+ if (mReader->getNodeName() == curElem)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an effect entry containing a float
|
|
|
+void ColladaParser::ReadEffectFloat( float& pFloat)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT){
|
|
|
+ if( IsElement( "float"))
|
|
|
+ {
|
|
|
+ // text content contains a single floats
|
|
|
+ const char* content = GetTextContent();
|
|
|
+ content = fast_atof_move( content, pFloat);
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+
|
|
|
+ TestClosing( "float");
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END){
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an effect parameter specification of any kind
|
|
|
+void ColladaParser::ReadEffectParam( Collada::EffectParam& pParam)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "surface"))
|
|
|
+ {
|
|
|
+ // image ID given inside <init_from> tags
|
|
|
+ TestOpening( "init_from");
|
|
|
+ const char* content = GetTextContent();
|
|
|
+ pParam.mType = Param_Surface;
|
|
|
+ pParam.mReference = content;
|
|
|
+ TestClosing( "init_from");
|
|
|
+
|
|
|
+ // don't care for remaining stuff
|
|
|
+ SkipElement( "surface");
|
|
|
+ }
|
|
|
+ else if( IsElement( "sampler2D"))
|
|
|
+ {
|
|
|
+ // surface ID is given inside <source> tags
|
|
|
+ TestOpening( "source");
|
|
|
+ const char* content = GetTextContent();
|
|
|
+ pParam.mType = Param_Sampler;
|
|
|
+ pParam.mReference = content;
|
|
|
+ TestClosing( "source");
|
|
|
+
|
|
|
+ // don't care for remaining stuff
|
|
|
+ SkipElement( "sampler2D");
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore unknown element
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the geometry library contents
|
|
|
+void ColladaParser::ReadGeometryLibrary()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "geometry"))
|
|
|
+ {
|
|
|
+ // read ID. Another entry which is "optional" by design but obligatory in reality
|
|
|
+ int indexID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( indexID);
|
|
|
+
|
|
|
+ // TODO: (thom) support SIDs
|
|
|
+ // ai_assert( TestAttribute( "sid") == -1);
|
|
|
+
|
|
|
+ // create a mesh and store it in the library under its ID
|
|
|
+ Mesh* mesh = new Mesh;
|
|
|
+ mMeshLibrary[id] = mesh;
|
|
|
+
|
|
|
+ // read on from there
|
|
|
+ ReadGeometry( mesh);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_geometries") != 0)
|
|
|
+ ThrowException( "Expected end of \"library_geometries\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a geometry from the geometry library.
|
|
|
+void ColladaParser::ReadGeometry( Collada::Mesh* pMesh)
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "mesh"))
|
|
|
+ {
|
|
|
+ // read on from there
|
|
|
+ ReadMesh( pMesh);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "geometry") != 0)
|
|
|
+ ThrowException( "Expected end of \"geometry\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a mesh from the geometry library
|
|
|
+void ColladaParser::ReadMesh( Mesh* pMesh)
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "source"))
|
|
|
+ {
|
|
|
+ // we have professionals dealing with this
|
|
|
+ ReadSource();
|
|
|
+ }
|
|
|
+ else if( IsElement( "vertices"))
|
|
|
+ {
|
|
|
+ // read per-vertex mesh data
|
|
|
+ ReadVertexData( pMesh);
|
|
|
+ }
|
|
|
+ else if( IsElement( "triangles") || IsElement( "lines") || IsElement( "linestrips")
|
|
|
+ || IsElement( "polygons") || IsElement( "polylist") || IsElement( "trifans") || IsElement( "tristrips"))
|
|
|
+ {
|
|
|
+ // read per-index mesh data and faces setup
|
|
|
+ ReadIndexData( pMesh);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "technique_common") == 0)
|
|
|
+ {
|
|
|
+ // end of another meaningless element - read over it
|
|
|
+ }
|
|
|
+ else if( strcmp( mReader->getNodeName(), "mesh") == 0)
|
|
|
+ {
|
|
|
+ // end of <mesh> element - we're done here
|
|
|
+ break;
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // everything else should be punished
|
|
|
+ ThrowException( "Expected end of \"mesh\" element.");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a source element
|
|
|
+void ColladaParser::ReadSource()
|
|
|
+{
|
|
|
+ int indexID = GetAttribute( "id");
|
|
|
+ std::string sourceID = mReader->getAttributeValue( indexID);
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "float_array") || IsElement( "IDREF_array") || IsElement( "Name_array"))
|
|
|
+ {
|
|
|
+ ReadDataArray();
|
|
|
+ }
|
|
|
+ else if( IsElement( "technique_common"))
|
|
|
+ {
|
|
|
+ // I don't fucking care for your profiles bullshit
|
|
|
+ }
|
|
|
+ else if( IsElement( "accessor"))
|
|
|
+ {
|
|
|
+ ReadAccessor( sourceID);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "source") == 0)
|
|
|
+ {
|
|
|
+ // end of <source> - we're done
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ else if( strcmp( mReader->getNodeName(), "technique_common") == 0)
|
|
|
+ {
|
|
|
+ // end of another meaningless element - read over it
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // everything else should be punished
|
|
|
+ ThrowException( "Expected end of \"source\" element.");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a data array holding a number of floats, and stores it in the global library
|
|
|
+void ColladaParser::ReadDataArray()
|
|
|
+{
|
|
|
+ std::string elmName = mReader->getNodeName();
|
|
|
+ bool isStringArray = (elmName == "IDREF_array" || elmName == "Name_array");
|
|
|
+
|
|
|
+ // read attributes
|
|
|
+ int indexID = GetAttribute( "id");
|
|
|
+ std::string id = mReader->getAttributeValue( indexID);
|
|
|
+ int indexCount = GetAttribute( "count");
|
|
|
+ unsigned int count = (unsigned int) mReader->getAttributeValueAsInt( indexCount);
|
|
|
+ const char* content = TestTextContent();
|
|
|
+ if (content) { // some exporters write empty data arrays, silently skip over them
|
|
|
+
|
|
|
+ // read values and store inside an array in the data library
|
|
|
+ mDataLibrary[id] = Data();
|
|
|
+ Data& data = mDataLibrary[id];
|
|
|
+ data.mIsStringArray = isStringArray;
|
|
|
+
|
|
|
+ if( isStringArray)
|
|
|
+ {
|
|
|
+ data.mStrings.reserve( count);
|
|
|
+ std::string s;
|
|
|
+
|
|
|
+ for( unsigned int a = 0; a < count; a++)
|
|
|
+ {
|
|
|
+ if( *content == 0)
|
|
|
+ ThrowException( "Expected more values while reading IDREF_array contents.");
|
|
|
+
|
|
|
+ s.clear();
|
|
|
+ while( !IsSpaceOrNewLine( *content))
|
|
|
+ s += *content++;
|
|
|
+ data.mStrings.push_back( s);
|
|
|
+
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ }
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ data.mValues.reserve( count);
|
|
|
+
|
|
|
+ for( unsigned int a = 0; a < count; a++)
|
|
|
+ {
|
|
|
+ if( *content == 0)
|
|
|
+ ThrowException( "Expected more values while reading float_array contents.");
|
|
|
+
|
|
|
+ float value;
|
|
|
+ // read a number
|
|
|
+ content = fast_atof_move( content, value);
|
|
|
+ data.mValues.push_back( value);
|
|
|
+ // skip whitespace after it
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // test for closing tag
|
|
|
+ TestClosing( elmName.c_str());
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads an accessor and stores it in the global library
|
|
|
+void ColladaParser::ReadAccessor( const std::string& pID)
|
|
|
+{
|
|
|
+ // read accessor attributes
|
|
|
+ int attrSource = GetAttribute( "source");
|
|
|
+ const char* source = mReader->getAttributeValue( attrSource);
|
|
|
+ if( source[0] != '#')
|
|
|
+ ThrowException( boost::str( boost::format( "Unknown reference format in url \"%s\".") % source));
|
|
|
+ int attrCount = GetAttribute( "count");
|
|
|
+ unsigned int count = (unsigned int) mReader->getAttributeValueAsInt( attrCount);
|
|
|
+ int attrOffset = TestAttribute( "offset");
|
|
|
+ unsigned int offset = 0;
|
|
|
+ if( attrOffset > -1)
|
|
|
+ offset = (unsigned int) mReader->getAttributeValueAsInt( attrOffset);
|
|
|
+ int attrStride = TestAttribute( "stride");
|
|
|
+ unsigned int stride = 1;
|
|
|
+ if( attrStride > -1)
|
|
|
+ stride = (unsigned int) mReader->getAttributeValueAsInt( attrStride);
|
|
|
+
|
|
|
+ // store in the library under the given ID
|
|
|
+ mAccessorLibrary[pID] = Accessor();
|
|
|
+ Accessor& acc = mAccessorLibrary[pID];
|
|
|
+ acc.mCount = count;
|
|
|
+ acc.mOffset = offset;
|
|
|
+ acc.mStride = stride;
|
|
|
+ acc.mSource = source+1; // ignore the leading '#'
|
|
|
+ acc.mSize = 0; // gets incremented with every param
|
|
|
+
|
|
|
+ // and read the components
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "param"))
|
|
|
+ {
|
|
|
+ // read data param
|
|
|
+ int attrName = TestAttribute( "name");
|
|
|
+ std::string name;
|
|
|
+ if( attrName > -1)
|
|
|
+ {
|
|
|
+ name = mReader->getAttributeValue( attrName);
|
|
|
+
|
|
|
+ // analyse for common type components and store it's sub-offset in the corresponding field
|
|
|
+
|
|
|
+ /* Cartesian coordinates */
|
|
|
+ if( name == "X") acc.mSubOffset[0] = acc.mParams.size();
|
|
|
+ else if( name == "Y") acc.mSubOffset[1] = acc.mParams.size();
|
|
|
+ else if( name == "Z") acc.mSubOffset[2] = acc.mParams.size();
|
|
|
+
|
|
|
+ /* RGBA colors */
|
|
|
+ else if( name == "R") acc.mSubOffset[0] = acc.mParams.size();
|
|
|
+ else if( name == "G") acc.mSubOffset[1] = acc.mParams.size();
|
|
|
+ else if( name == "B") acc.mSubOffset[2] = acc.mParams.size();
|
|
|
+ else if( name == "A") acc.mSubOffset[3] = acc.mParams.size();
|
|
|
+
|
|
|
+ /* UVWQ (STPQ) texture coordinates */
|
|
|
+ else if( name == "S") acc.mSubOffset[0] = acc.mParams.size();
|
|
|
+ else if( name == "T") acc.mSubOffset[1] = acc.mParams.size();
|
|
|
+ else if( name == "P") acc.mSubOffset[2] = acc.mParams.size();
|
|
|
+ // else if( name == "Q") acc.mSubOffset[3] = acc.mParams.size();
|
|
|
+ /* 4D uv coordinates are not supported in Assimp */
|
|
|
+
|
|
|
+ /* Generic extra data, interpreted as UV data, too*/
|
|
|
+ else if( name == "U") acc.mSubOffset[0] = acc.mParams.size();
|
|
|
+ else if( name == "V") acc.mSubOffset[1] = acc.mParams.size();
|
|
|
+ //else
|
|
|
+ // DefaultLogger::get()->warn( boost::str( boost::format( "Unknown accessor parameter \"%s\". Ignoring data channel.") % name));
|
|
|
+ }
|
|
|
+
|
|
|
+ // read data type
|
|
|
+ int attrType = TestAttribute( "type");
|
|
|
+ if( attrType > -1)
|
|
|
+ {
|
|
|
+ // for the moment we only distinguish between a 4x4 matrix and anything else.
|
|
|
+ // TODO: (thom) I don't have a spec here at work. Check if there are other multi-value types
|
|
|
+ // which should be tested for here.
|
|
|
+ std::string type = mReader->getAttributeValue( attrType);
|
|
|
+ if( type == "float4x4")
|
|
|
+ acc.mSize += 16;
|
|
|
+ else
|
|
|
+ acc.mSize += 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ acc.mParams.push_back( name);
|
|
|
+
|
|
|
+ // skip remaining stuff of this element, if any
|
|
|
+ SkipElement();
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ ThrowException( "Unexpected sub element in tag \"accessor\".");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "accessor") != 0)
|
|
|
+ ThrowException( "Expected end of \"accessor\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads input declarations of per-vertex mesh data into the given mesh
|
|
|
+void ColladaParser::ReadVertexData( Mesh* pMesh)
|
|
|
+{
|
|
|
+ // extract the ID of the <vertices> element. Not that we care, but to catch strange referencing schemes we should warn about
|
|
|
+ int attrID= GetAttribute( "id");
|
|
|
+ pMesh->mVertexID = mReader->getAttributeValue( attrID);
|
|
|
+
|
|
|
+ // a number of <input> elements
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "input"))
|
|
|
+ {
|
|
|
+ ReadInputChannel( pMesh->mPerVertexData);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ ThrowException( "Unexpected sub element in tag \"vertices\".");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "vertices") != 0)
|
|
|
+ ThrowException( "Expected end of \"vertices\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads input declarations of per-index mesh data into the given mesh
|
|
|
+void ColladaParser::ReadIndexData( Mesh* pMesh)
|
|
|
+{
|
|
|
+ std::vector<size_t> vcount;
|
|
|
+ std::vector<InputChannel> perIndexData;
|
|
|
+
|
|
|
+ // read primitive count from the attribute
|
|
|
+ int attrCount = GetAttribute( "count");
|
|
|
+ size_t numPrimitives = (size_t) mReader->getAttributeValueAsInt( attrCount);
|
|
|
+
|
|
|
+ // material subgroup
|
|
|
+ int attrMaterial = TestAttribute( "material");
|
|
|
+ SubMesh subgroup;
|
|
|
+ if( attrMaterial > -1)
|
|
|
+ subgroup.mMaterial = mReader->getAttributeValue( attrMaterial);
|
|
|
+ subgroup.mNumFaces = numPrimitives;
|
|
|
+ pMesh->mSubMeshes.push_back( subgroup);
|
|
|
+
|
|
|
+ // distinguish between polys and triangles
|
|
|
+ std::string elementName = mReader->getNodeName();
|
|
|
+ PrimitiveType primType = Prim_Invalid;
|
|
|
+ if( IsElement( "lines"))
|
|
|
+ primType = Prim_Lines;
|
|
|
+ else if( IsElement( "linestrips"))
|
|
|
+ primType = Prim_LineStrip;
|
|
|
+ else if( IsElement( "polygons"))
|
|
|
+ primType = Prim_Polygon;
|
|
|
+ else if( IsElement( "polylist"))
|
|
|
+ primType = Prim_Polylist;
|
|
|
+ else if( IsElement( "triangles"))
|
|
|
+ primType = Prim_Triangles;
|
|
|
+ else if( IsElement( "trifans"))
|
|
|
+ primType = Prim_TriFans;
|
|
|
+ else if( IsElement( "tristrips"))
|
|
|
+ primType = Prim_TriStrips;
|
|
|
+
|
|
|
+ ai_assert( primType != Prim_Invalid);
|
|
|
+
|
|
|
+ // also a number of <input> elements, but in addition a <p> primitive collection and propably index counts for all primitives
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "input"))
|
|
|
+ {
|
|
|
+ ReadInputChannel( perIndexData);
|
|
|
+ }
|
|
|
+ else if( IsElement( "vcount"))
|
|
|
+ {
|
|
|
+ if( !mReader->isEmptyElement())
|
|
|
+ {
|
|
|
+ // case <polylist> - specifies the number of indices for each polygon
|
|
|
+ const char* content = GetTextContent();
|
|
|
+ vcount.reserve( numPrimitives);
|
|
|
+ for( unsigned int a = 0; a < numPrimitives; a++)
|
|
|
+ {
|
|
|
+ if( *content == 0)
|
|
|
+ ThrowException( "Expected more values while reading vcount contents.");
|
|
|
+ // read a number
|
|
|
+ vcount.push_back( (size_t) strtol10( content, &content));
|
|
|
+ // skip whitespace after it
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ }
|
|
|
+
|
|
|
+ TestClosing( "vcount");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( IsElement( "p"))
|
|
|
+ {
|
|
|
+ if( !mReader->isEmptyElement())
|
|
|
+ {
|
|
|
+ // now here the actual fun starts - these are the indices to construct the mesh data from
|
|
|
+ ReadPrimitives( pMesh, perIndexData, numPrimitives, vcount, primType);
|
|
|
+ }
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ ThrowException( "Unexpected sub element in tag \"vertices\".");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( mReader->getNodeName() != elementName)
|
|
|
+ ThrowException( boost::str( boost::format( "Expected end of \"%s\" element.") % elementName));
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a single input channel element and stores it in the given array, if valid
|
|
|
+void ColladaParser::ReadInputChannel( std::vector<InputChannel>& poChannels)
|
|
|
+{
|
|
|
+ InputChannel channel;
|
|
|
+
|
|
|
+ // read semantic
|
|
|
+ int attrSemantic = GetAttribute( "semantic");
|
|
|
+ std::string semantic = mReader->getAttributeValue( attrSemantic);
|
|
|
+ channel.mType = GetTypeForSemantic( semantic);
|
|
|
+
|
|
|
+ // read source
|
|
|
+ int attrSource = GetAttribute( "source");
|
|
|
+ const char* source = mReader->getAttributeValue( attrSource);
|
|
|
+ if( source[0] != '#')
|
|
|
+ ThrowException( boost::str( boost::format( "Unknown reference format in url \"%s\".") % source));
|
|
|
+ channel.mAccessor = source+1; // skipping the leading #, hopefully the remaining text is the accessor ID only
|
|
|
+
|
|
|
+ // read index offset, if per-index <input>
|
|
|
+ int attrOffset = TestAttribute( "offset");
|
|
|
+ if( attrOffset > -1)
|
|
|
+ channel.mOffset = mReader->getAttributeValueAsInt( attrOffset);
|
|
|
+
|
|
|
+ // read set if texture coordinates
|
|
|
+ if(channel.mType == IT_Texcoord || channel.mType == IT_Color){
|
|
|
+ int attrSet = TestAttribute("set");
|
|
|
+ if(attrSet > -1){
|
|
|
+ attrSet = mReader->getAttributeValueAsInt( attrSet);
|
|
|
+ if(attrSet < 0)
|
|
|
+ ThrowException( boost::str( boost::format( "Invalid index \"%i\" for set attribute") % (attrSet)));
|
|
|
+
|
|
|
+ channel.mIndex = attrSet;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // store, if valid type
|
|
|
+ if( channel.mType != IT_Invalid)
|
|
|
+ poChannels.push_back( channel);
|
|
|
+
|
|
|
+ // skip remaining stuff of this element, if any
|
|
|
+ SkipElement();
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a <p> primitive index list and assembles the mesh data into the given mesh
|
|
|
+void ColladaParser::ReadPrimitives( Mesh* pMesh, std::vector<InputChannel>& pPerIndexChannels,
|
|
|
+ size_t pNumPrimitives, const std::vector<size_t>& pVCount, PrimitiveType pPrimType)
|
|
|
+{
|
|
|
+ // determine number of indices coming per vertex
|
|
|
+ // find the offset index for all per-vertex channels
|
|
|
+ size_t numOffsets = 1;
|
|
|
+ size_t perVertexOffset = 0xffffffff; // invalid value
|
|
|
+ BOOST_FOREACH( const InputChannel& channel, pPerIndexChannels)
|
|
|
+ {
|
|
|
+ numOffsets = std::max( numOffsets, channel.mOffset+1);
|
|
|
+ if( channel.mType == IT_Vertex)
|
|
|
+ perVertexOffset = channel.mOffset;
|
|
|
+ }
|
|
|
+
|
|
|
+ // determine the expected number of indices
|
|
|
+ size_t expectedPointCount = 0;
|
|
|
+ switch( pPrimType)
|
|
|
+ {
|
|
|
+ case Prim_Polylist:
|
|
|
+ {
|
|
|
+ BOOST_FOREACH( size_t i, pVCount)
|
|
|
+ expectedPointCount += i;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case Prim_Lines:
|
|
|
+ expectedPointCount = 2 * pNumPrimitives;
|
|
|
+ break;
|
|
|
+ case Prim_Triangles:
|
|
|
+ expectedPointCount = 3 * pNumPrimitives;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ // other primitive types don't state the index count upfront... we need to guess
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ // and read all indices into a temporary array
|
|
|
+ std::vector<size_t> indices;
|
|
|
+ if( expectedPointCount > 0)
|
|
|
+ indices.reserve( expectedPointCount * numOffsets);
|
|
|
+
|
|
|
+ const char* content = GetTextContent();
|
|
|
+ while( *content != 0)
|
|
|
+ {
|
|
|
+ // read a value.
|
|
|
+ // Hack: (thom) Some exporters put negative indices sometimes. We just try to carry on anyways.
|
|
|
+ int value = std::max( 0, strtol10s( content, &content));
|
|
|
+ indices.push_back( size_t( value));
|
|
|
+ // skip whitespace after it
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ }
|
|
|
+
|
|
|
+ // complain if the index count doesn't fit
|
|
|
+ if( expectedPointCount > 0 && indices.size() != expectedPointCount * numOffsets)
|
|
|
+ ThrowException( "Expected different index count in <p> element.");
|
|
|
+ else if( expectedPointCount == 0 && (indices.size() % numOffsets) != 0)
|
|
|
+ ThrowException( "Expected different index count in <p> element.");
|
|
|
+
|
|
|
+ // find the data for all sources
|
|
|
+ for( std::vector<InputChannel>::iterator it = pMesh->mPerVertexData.begin(); it != pMesh->mPerVertexData.end(); ++it)
|
|
|
+ {
|
|
|
+ InputChannel& input = *it;
|
|
|
+ if( input.mResolved)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ // find accessor
|
|
|
+ input.mResolved = &ResolveLibraryReference( mAccessorLibrary, input.mAccessor);
|
|
|
+ // resolve accessor's data pointer as well, if neccessary
|
|
|
+ const Accessor* acc = input.mResolved;
|
|
|
+ if( !acc->mData)
|
|
|
+ acc->mData = &ResolveLibraryReference( mDataLibrary, acc->mSource);
|
|
|
+ }
|
|
|
+ // and the same for the per-index channels
|
|
|
+ for( std::vector<InputChannel>::iterator it = pPerIndexChannels.begin(); it != pPerIndexChannels.end(); ++it)
|
|
|
+ {
|
|
|
+ InputChannel& input = *it;
|
|
|
+ if( input.mResolved)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ // ignore vertex pointer, it doesn't refer to an accessor
|
|
|
+ if( input.mType == IT_Vertex)
|
|
|
+ {
|
|
|
+ // warn if the vertex channel does not refer to the <vertices> element in the same mesh
|
|
|
+ if( input.mAccessor != pMesh->mVertexID)
|
|
|
+ ThrowException( "Unsupported vertex referencing scheme. I fucking hate Collada.");
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ // find accessor
|
|
|
+ input.mResolved = &ResolveLibraryReference( mAccessorLibrary, input.mAccessor);
|
|
|
+ // resolve accessor's data pointer as well, if neccessary
|
|
|
+ const Accessor* acc = input.mResolved;
|
|
|
+ if( !acc->mData)
|
|
|
+ acc->mData = &ResolveLibraryReference( mDataLibrary, acc->mSource);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ // now assemble vertex data according to those indices
|
|
|
+ std::vector<size_t>::const_iterator idx = indices.begin();
|
|
|
+
|
|
|
+ // For continued primitives, the given count does not come all in one <p>, but only one primitive per <p>
|
|
|
+ size_t numPrimitives = pNumPrimitives;
|
|
|
+ if( pPrimType == Prim_TriFans || pPrimType == Prim_Polygon)
|
|
|
+ numPrimitives = 1;
|
|
|
+
|
|
|
+ pMesh->mFaceSize.reserve( numPrimitives);
|
|
|
+ pMesh->mFacePosIndices.reserve( indices.size() / numOffsets);
|
|
|
+
|
|
|
+ for( size_t a = 0; a < numPrimitives; a++)
|
|
|
+ {
|
|
|
+ // determine number of points for this primitive
|
|
|
+ size_t numPoints = 0;
|
|
|
+ switch( pPrimType)
|
|
|
+ {
|
|
|
+ case Prim_Lines:
|
|
|
+ numPoints = 2;
|
|
|
+ break;
|
|
|
+ case Prim_Triangles:
|
|
|
+ numPoints = 3;
|
|
|
+ break;
|
|
|
+ case Prim_Polylist:
|
|
|
+ numPoints = pVCount[a];
|
|
|
+ break;
|
|
|
+ case Prim_TriFans:
|
|
|
+ case Prim_Polygon:
|
|
|
+ numPoints = indices.size() / numOffsets;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ // LineStrip and TriStrip not supported due to expected index unmangling
|
|
|
+ ThrowException( "Unsupported primitive type.");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ // store the face size to later reconstruct the face from
|
|
|
+ pMesh->mFaceSize.push_back( numPoints);
|
|
|
+
|
|
|
+ // gather that number of vertices
|
|
|
+ for( size_t b = 0; b < numPoints; b++)
|
|
|
+ {
|
|
|
+ // read all indices for this vertex. Yes, in a hacky local array
|
|
|
+ assert( numOffsets < 20 && perVertexOffset < 20);
|
|
|
+ size_t vindex[20];
|
|
|
+ for( size_t offsets = 0; offsets < numOffsets; ++offsets)
|
|
|
+ vindex[offsets] = *idx++;
|
|
|
+
|
|
|
+ // extract per-vertex channels using the global per-vertex offset
|
|
|
+ for( std::vector<InputChannel>::iterator it = pMesh->mPerVertexData.begin(); it != pMesh->mPerVertexData.end(); ++it)
|
|
|
+ ExtractDataObjectFromChannel( *it, vindex[perVertexOffset], pMesh);
|
|
|
+ // and extract per-index channels using there specified offset
|
|
|
+ for( std::vector<InputChannel>::iterator it = pPerIndexChannels.begin(); it != pPerIndexChannels.end(); ++it)
|
|
|
+ ExtractDataObjectFromChannel( *it, vindex[it->mOffset], pMesh);
|
|
|
+
|
|
|
+ // store the vertex-data index for later assignment of bone vertex weights
|
|
|
+ pMesh->mFacePosIndices.push_back( vindex[perVertexOffset]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ // if I ever get my hands on that guy who invented this steaming pile of indirection...
|
|
|
+ TestClosing( "p");
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Extracts a single object from an input channel and stores it in the appropriate mesh data array
|
|
|
+void ColladaParser::ExtractDataObjectFromChannel( const InputChannel& pInput, size_t pLocalIndex, Mesh* pMesh)
|
|
|
+{
|
|
|
+ // ignore vertex referrer - we handle them that separate
|
|
|
+ if( pInput.mType == IT_Vertex)
|
|
|
+ return;
|
|
|
+
|
|
|
+ const Accessor& acc = *pInput.mResolved;
|
|
|
+ if( pLocalIndex >= acc.mCount)
|
|
|
+ ThrowException( boost::str( boost::format( "Invalid data index (%d/%d) in primitive specification") % pLocalIndex % acc.mCount));
|
|
|
+
|
|
|
+ // get a pointer to the start of the data object referred to by the accessor and the local index
|
|
|
+ const float* dataObject = &(acc.mData->mValues[0]) + acc.mOffset + pLocalIndex* acc.mStride;
|
|
|
+
|
|
|
+ // assemble according to the accessors component sub-offset list. We don't care, yet,
|
|
|
+ // what kind of object exactly we're extracting here
|
|
|
+ float obj[4];
|
|
|
+ for( size_t c = 0; c < 4; ++c)
|
|
|
+ obj[c] = dataObject[acc.mSubOffset[c]];
|
|
|
+
|
|
|
+ // now we reinterpret it according to the type we're reading here
|
|
|
+ switch( pInput.mType)
|
|
|
+ {
|
|
|
+ case IT_Position: // ignore all position streams except 0 - there can be only one position
|
|
|
+ if( pInput.mIndex == 0)
|
|
|
+ pMesh->mPositions.push_back( aiVector3D( obj[0], obj[1], obj[2]));
|
|
|
+ else
|
|
|
+ DefaultLogger::get()->error("Collada: just one vertex position stream supported");
|
|
|
+ break;
|
|
|
+ case IT_Normal:
|
|
|
+ // pad to current vertex count if necessary
|
|
|
+ if( pMesh->mNormals.size() < pMesh->mPositions.size()-1)
|
|
|
+ pMesh->mNormals.insert( pMesh->mNormals.end(), pMesh->mPositions.size() - pMesh->mNormals.size() - 1, aiVector3D( 0, 1, 0));
|
|
|
+
|
|
|
+ // ignore all normal streams except 0 - there can be only one normal
|
|
|
+ if( pInput.mIndex == 0)
|
|
|
+ pMesh->mNormals.push_back( aiVector3D( obj[0], obj[1], obj[2]));
|
|
|
+ else
|
|
|
+ DefaultLogger::get()->error("Collada: just one vertex normal stream supported");
|
|
|
+ break;
|
|
|
+ case IT_Tangent:
|
|
|
+ // pad to current vertex count if necessary
|
|
|
+ if( pMesh->mTangents.size() < pMesh->mPositions.size()-1)
|
|
|
+ pMesh->mTangents.insert( pMesh->mTangents.end(), pMesh->mPositions.size() - pMesh->mTangents.size() - 1, aiVector3D( 1, 0, 0));
|
|
|
+
|
|
|
+ // ignore all tangent streams except 0 - there can be only one tangent
|
|
|
+ if( pInput.mIndex == 0)
|
|
|
+ pMesh->mTangents.push_back( aiVector3D( obj[0], obj[1], obj[2]));
|
|
|
+ else
|
|
|
+ DefaultLogger::get()->error("Collada: just one vertex tangent stream supported");
|
|
|
+ break;
|
|
|
+ case IT_Bitangent:
|
|
|
+ // pad to current vertex count if necessary
|
|
|
+ if( pMesh->mBitangents.size() < pMesh->mPositions.size()-1)
|
|
|
+ pMesh->mBitangents.insert( pMesh->mBitangents.end(), pMesh->mPositions.size() - pMesh->mBitangents.size() - 1, aiVector3D( 0, 0, 1));
|
|
|
+
|
|
|
+ // ignore all bitangent streams except 0 - there can be only one bitangent
|
|
|
+ if( pInput.mIndex == 0)
|
|
|
+ pMesh->mBitangents.push_back( aiVector3D( obj[0], obj[1], obj[2]));
|
|
|
+ else
|
|
|
+ DefaultLogger::get()->error("Collada: just one vertex bitangent stream supported");
|
|
|
+ break;
|
|
|
+ case IT_Texcoord:
|
|
|
+ // up to 4 texture coord sets are fine, ignore the others
|
|
|
+ if( pInput.mIndex < AI_MAX_NUMBER_OF_TEXTURECOORDS)
|
|
|
+ {
|
|
|
+ // pad to current vertex count if necessary
|
|
|
+ if( pMesh->mTexCoords[pInput.mIndex].size() < pMesh->mPositions.size()-1)
|
|
|
+ pMesh->mTexCoords[pInput.mIndex].insert( pMesh->mTexCoords[pInput.mIndex].end(),
|
|
|
+ pMesh->mPositions.size() - pMesh->mTexCoords[pInput.mIndex].size() - 1, aiVector3D( 0, 0, 0));
|
|
|
+
|
|
|
+ pMesh->mTexCoords[pInput.mIndex].push_back( aiVector3D( obj[0], obj[1], obj[2]));
|
|
|
+ if (0 != acc.mSubOffset[2] || 0 != acc.mSubOffset[3]) /* hack ... consider cleaner solution */
|
|
|
+ pMesh->mNumUVComponents[pInput.mIndex]=3;
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ DefaultLogger::get()->error("Collada: too many texture coordinate sets. Skipping.");
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case IT_Color:
|
|
|
+ // up to 4 color sets are fine, ignore the others
|
|
|
+ if( pInput.mIndex < AI_MAX_NUMBER_OF_COLOR_SETS)
|
|
|
+ {
|
|
|
+ // pad to current vertex count if necessary
|
|
|
+ if( pMesh->mColors[pInput.mIndex].size() < pMesh->mPositions.size()-1)
|
|
|
+ pMesh->mColors[pInput.mIndex].insert( pMesh->mColors[pInput.mIndex].end(),
|
|
|
+ pMesh->mPositions.size() - pMesh->mColors[pInput.mIndex].size() - 1, aiColor4D( 0, 0, 0, 1));
|
|
|
+
|
|
|
+ pMesh->mColors[pInput.mIndex].push_back( aiColor4D( obj[0], obj[1], obj[2], obj[3]));
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ DefaultLogger::get()->error("Collada: too many vertex color sets. Skipping.");
|
|
|
+ }
|
|
|
+
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ // IT_Invalid and IT_Vertex
|
|
|
+ ai_assert(false && "shouldn't ever get here");
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the library of node hierarchies and scene parts
|
|
|
+void ColladaParser::ReadSceneLibrary()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ // a visual scene - generate root node under its ID and let ReadNode() do the recursive work
|
|
|
+ if( IsElement( "visual_scene"))
|
|
|
+ {
|
|
|
+ // read ID. Is optional according to the spec, but how on earth should a scene_instance refer to it then?
|
|
|
+ int indexID = GetAttribute( "id");
|
|
|
+ const char* attrID = mReader->getAttributeValue( indexID);
|
|
|
+
|
|
|
+ // read name if given.
|
|
|
+ int indexName = TestAttribute( "name");
|
|
|
+ const char* attrName = "unnamed";
|
|
|
+ if( indexName > -1)
|
|
|
+ attrName = mReader->getAttributeValue( indexName);
|
|
|
+
|
|
|
+ // create a node and store it in the library under its ID
|
|
|
+ Node* node = new Node;
|
|
|
+ node->mID = attrID;
|
|
|
+ node->mName = attrName;
|
|
|
+ mNodeLibrary[node->mID] = node;
|
|
|
+
|
|
|
+ ReadSceneNode( node);
|
|
|
+ } else
|
|
|
+ {
|
|
|
+ // ignore the rest
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "library_visual_scenes") == 0)
|
|
|
+ //ThrowException( "Expected end of \"library_visual_scenes\" element.");
|
|
|
+
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a scene node's contents including children and stores it in the given node
|
|
|
+void ColladaParser::ReadSceneNode( Node* pNode)
|
|
|
+{
|
|
|
+ // quit immediately on <bla/> elements
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "node"))
|
|
|
+ {
|
|
|
+ Node* child = new Node;
|
|
|
+ int attrID = TestAttribute( "id");
|
|
|
+ if( attrID > -1)
|
|
|
+ child->mID = mReader->getAttributeValue( attrID);
|
|
|
+ int attrSID = TestAttribute( "sid");
|
|
|
+ if( attrSID > -1)
|
|
|
+ child->mSID = mReader->getAttributeValue( attrSID);
|
|
|
+
|
|
|
+ int attrName = TestAttribute( "name");
|
|
|
+ if( attrName > -1)
|
|
|
+ child->mName = mReader->getAttributeValue( attrName);
|
|
|
+
|
|
|
+ // TODO: (thom) support SIDs
|
|
|
+ // assert( TestAttribute( "sid") == -1);
|
|
|
+
|
|
|
+ if (pNode)
|
|
|
+ {
|
|
|
+ pNode->mChildren.push_back( child);
|
|
|
+ child->mParent = pNode;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // no parent node given, probably called from <library_nodes> element.
|
|
|
+ // create new node in node library
|
|
|
+ mNodeLibrary[child->mID] = child;
|
|
|
+ }
|
|
|
+
|
|
|
+ // read on recursively from there
|
|
|
+ ReadSceneNode( child);
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+ // For any further stuff we need a valid node to work on
|
|
|
+ else if (!pNode)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ if( IsElement( "lookat"))
|
|
|
+ ReadNodeTransformation( pNode, TF_LOOKAT);
|
|
|
+ else if( IsElement( "matrix"))
|
|
|
+ ReadNodeTransformation( pNode, TF_MATRIX);
|
|
|
+ else if( IsElement( "rotate"))
|
|
|
+ ReadNodeTransformation( pNode, TF_ROTATE);
|
|
|
+ else if( IsElement( "scale"))
|
|
|
+ ReadNodeTransformation( pNode, TF_SCALE);
|
|
|
+ else if( IsElement( "skew"))
|
|
|
+ ReadNodeTransformation( pNode, TF_SKEW);
|
|
|
+ else if( IsElement( "translate"))
|
|
|
+ ReadNodeTransformation( pNode, TF_TRANSLATE);
|
|
|
+ else if( IsElement( "render") && pNode->mParent == NULL && 0 == pNode->mPrimaryCamera.length())
|
|
|
+ {
|
|
|
+ // ... scene evaluation or, in other words, postprocessing pipeline,
|
|
|
+ // or, again in other words, a turing-complete description how to
|
|
|
+ // render a Collada scene. The only thing that is interesting for
|
|
|
+ // us is the primary camera.
|
|
|
+ int attrId = TestAttribute("camera_node");
|
|
|
+ if (-1 != attrId)
|
|
|
+ {
|
|
|
+ const char* s = mReader->getAttributeValue(attrId);
|
|
|
+ if (s[0] != '#')
|
|
|
+ DefaultLogger::get()->error("Collada: Unresolved reference format of camera");
|
|
|
+ else
|
|
|
+ pNode->mPrimaryCamera = s+1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( IsElement( "instance_node"))
|
|
|
+ {
|
|
|
+ // find the node in the library
|
|
|
+ int attrID = TestAttribute( "url");
|
|
|
+ if( attrID != -1)
|
|
|
+ {
|
|
|
+ const char* s = mReader->getAttributeValue(attrID);
|
|
|
+ if (s[0] != '#')
|
|
|
+ DefaultLogger::get()->error("Collada: Unresolved reference format of node");
|
|
|
+ else
|
|
|
+ {
|
|
|
+ pNode->mNodeInstances.push_back(NodeInstance());
|
|
|
+ pNode->mNodeInstances.back().mNode = s+1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( IsElement( "instance_geometry") || IsElement( "instance_controller"))
|
|
|
+ {
|
|
|
+ // Reference to a mesh or controller, with possible material associations
|
|
|
+ ReadNodeGeometry( pNode);
|
|
|
+ }
|
|
|
+ else if( IsElement( "instance_light"))
|
|
|
+ {
|
|
|
+ // Reference to a light, name given in 'url' attribute
|
|
|
+ int attrID = TestAttribute("url");
|
|
|
+ if (-1 == attrID)
|
|
|
+ DefaultLogger::get()->warn("Collada: Expected url attribute in <instance_light> element");
|
|
|
+ else
|
|
|
+ {
|
|
|
+ const char* url = mReader->getAttributeValue( attrID);
|
|
|
+ if( url[0] != '#')
|
|
|
+ ThrowException( "Unknown reference format in <instance_light> element");
|
|
|
+
|
|
|
+ pNode->mLights.push_back(LightInstance());
|
|
|
+ pNode->mLights.back().mLight = url+1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( IsElement( "instance_camera"))
|
|
|
+ {
|
|
|
+ // Reference to a camera, name given in 'url' attribute
|
|
|
+ int attrID = TestAttribute("url");
|
|
|
+ if (-1 == attrID)
|
|
|
+ DefaultLogger::get()->warn("Collada: Expected url attribute in <instance_camera> element");
|
|
|
+ else
|
|
|
+ {
|
|
|
+ const char* url = mReader->getAttributeValue( attrID);
|
|
|
+ if( url[0] != '#')
|
|
|
+ ThrowException( "Unknown reference format in <instance_camera> element");
|
|
|
+
|
|
|
+ pNode->mCameras.push_back(CameraInstance());
|
|
|
+ pNode->mCameras.back().mCamera = url+1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ // skip everything else for the moment
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a node transformation entry of the given type and adds it to the given node's transformation list.
|
|
|
+void ColladaParser::ReadNodeTransformation( Node* pNode, TransformType pType)
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ std::string tagName = mReader->getNodeName();
|
|
|
+
|
|
|
+ Transform tf;
|
|
|
+ tf.mType = pType;
|
|
|
+
|
|
|
+ // read SID
|
|
|
+ int indexSID = TestAttribute( "sid");
|
|
|
+ if( indexSID >= 0)
|
|
|
+ tf.mID = mReader->getAttributeValue( indexSID);
|
|
|
+
|
|
|
+ // how many parameters to read per transformation type
|
|
|
+ static const unsigned int sNumParameters[] = { 9, 4, 3, 3, 7, 16 };
|
|
|
+ const char* content = GetTextContent();
|
|
|
+
|
|
|
+ // read as many parameters and store in the transformation
|
|
|
+ for( unsigned int a = 0; a < sNumParameters[pType]; a++)
|
|
|
+ {
|
|
|
+ // read a number
|
|
|
+ content = fast_atof_move( content, tf.f[a]);
|
|
|
+ // skip whitespace after it
|
|
|
+ SkipSpacesAndLineEnd( &content);
|
|
|
+ }
|
|
|
+
|
|
|
+ // place the transformation at the queue of the node
|
|
|
+ pNode->mTransforms.push_back( tf);
|
|
|
+
|
|
|
+ // and consume the closing tag
|
|
|
+ TestClosing( tagName.c_str());
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Processes bind_vertex_input and bind elements
|
|
|
+void ColladaParser::ReadMaterialVertexInputBinding( Collada::SemanticMappingTable& tbl)
|
|
|
+{
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "bind_vertex_input"))
|
|
|
+ {
|
|
|
+ Collada::InputSemanticMapEntry vn;
|
|
|
+
|
|
|
+ // effect semantic
|
|
|
+ int n = GetAttribute("semantic");
|
|
|
+ std::string s = mReader->getAttributeValue(n);
|
|
|
+
|
|
|
+ // input semantic
|
|
|
+ n = GetAttribute("input_semantic");
|
|
|
+ vn.mType = GetTypeForSemantic( mReader->getAttributeValue(n) );
|
|
|
+
|
|
|
+ // index of input set
|
|
|
+ n = TestAttribute("input_set");
|
|
|
+ if (-1 != n)
|
|
|
+ vn.mSet = mReader->getAttributeValueAsInt(n);
|
|
|
+
|
|
|
+ tbl.mMap[s] = vn;
|
|
|
+ }
|
|
|
+ else if( IsElement( "bind")) {
|
|
|
+ DefaultLogger::get()->warn("Collada: Found unsupported <bind> element");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END) {
|
|
|
+ if( strcmp( mReader->getNodeName(), "instance_material") == 0)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads a mesh reference in a node and adds it to the node's mesh list
|
|
|
+void ColladaParser::ReadNodeGeometry( Node* pNode)
|
|
|
+{
|
|
|
+ // referred mesh is given as an attribute of the <instance_geometry> element
|
|
|
+ int attrUrl = GetAttribute( "url");
|
|
|
+ const char* url = mReader->getAttributeValue( attrUrl);
|
|
|
+ if( url[0] != '#')
|
|
|
+ ThrowException( "Unknown reference format");
|
|
|
+
|
|
|
+ Collada::MeshInstance instance;
|
|
|
+ instance.mMeshOrController = url+1; // skipping the leading #
|
|
|
+
|
|
|
+ if( !mReader->isEmptyElement())
|
|
|
+ {
|
|
|
+ // read material associations. Ignore additional elements inbetween
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT)
|
|
|
+ {
|
|
|
+ if( IsElement( "instance_material"))
|
|
|
+ {
|
|
|
+ // read ID of the geometry subgroup and the target material
|
|
|
+ int attrGroup = GetAttribute( "symbol");
|
|
|
+ std::string group = mReader->getAttributeValue( attrGroup);
|
|
|
+ int attrMaterial = GetAttribute( "target");
|
|
|
+ const char* urlMat = mReader->getAttributeValue( attrMaterial);
|
|
|
+ Collada::SemanticMappingTable s;
|
|
|
+ if( urlMat[0] == '#')
|
|
|
+ urlMat++;
|
|
|
+
|
|
|
+ s.mMatName = urlMat;
|
|
|
+
|
|
|
+ // resolve further material details + THIS UGLY AND NASTY semantic mapping stuff
|
|
|
+ if( !mReader->isEmptyElement())
|
|
|
+ ReadMaterialVertexInputBinding(s);
|
|
|
+
|
|
|
+ // store the association
|
|
|
+ instance.mMaterials[group] = s;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ {
|
|
|
+ if( strcmp( mReader->getNodeName(), "instance_geometry") == 0
|
|
|
+ || strcmp( mReader->getNodeName(), "instance_controller") == 0)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // store it
|
|
|
+ pNode->mMeshes.push_back( instance);
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the collada scene
|
|
|
+void ColladaParser::ReadScene()
|
|
|
+{
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT) {
|
|
|
+ if( IsElement( "instance_visual_scene"))
|
|
|
+ {
|
|
|
+ // should be the first and only occurence
|
|
|
+ if( mRootNode)
|
|
|
+ ThrowException( "Invalid scene containing multiple root nodes");
|
|
|
+
|
|
|
+ // read the url of the scene to instance. Should be of format "#some_name"
|
|
|
+ int urlIndex = GetAttribute( "url");
|
|
|
+ const char* url = mReader->getAttributeValue( urlIndex);
|
|
|
+ if( url[0] != '#')
|
|
|
+ ThrowException( "Unknown reference format");
|
|
|
+
|
|
|
+ // find the referred scene, skip the leading #
|
|
|
+ NodeLibrary::const_iterator sit = mNodeLibrary.find( url+1);
|
|
|
+ if( sit == mNodeLibrary.end())
|
|
|
+ ThrowException( "Unable to resolve visual_scene reference \"" + std::string(url) + "\".");
|
|
|
+ mRootNode = sit->second;
|
|
|
+ } else {
|
|
|
+ SkipElement();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ else if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END){
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Aborts the file reading with an exception
|
|
|
+void ColladaParser::ThrowException( const std::string& pError) const
|
|
|
+{
|
|
|
+ throw DeadlyImportError( boost::str( boost::format( "Collada: %s - %s") % mFileName % pError));
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Skips all data until the end node of the current element
|
|
|
+void ColladaParser::SkipElement()
|
|
|
+{
|
|
|
+ // nothing to skip if it's an <element />
|
|
|
+ if( mReader->isEmptyElement())
|
|
|
+ return;
|
|
|
+
|
|
|
+ // reroute
|
|
|
+ SkipElement( mReader->getNodeName());
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Skips all data until the end node of the given element
|
|
|
+void ColladaParser::SkipElement( const char* pElement)
|
|
|
+{
|
|
|
+ // copy the current node's name because it'a pointer to the reader's internal buffer,
|
|
|
+ // which is going to change with the upcoming parsing
|
|
|
+ std::string element = pElement;
|
|
|
+ while( mReader->read())
|
|
|
+ {
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END)
|
|
|
+ if( mReader->getNodeName() == element)
|
|
|
+ break;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Tests for an opening element of the given name, throws an exception if not found
|
|
|
+void ColladaParser::TestOpening( const char* pName)
|
|
|
+{
|
|
|
+ // read element start
|
|
|
+ if( !mReader->read())
|
|
|
+ ThrowException( boost::str( boost::format( "Unexpected end of file while beginning of \"%s\" element.") % pName));
|
|
|
+ // whitespace in front is ok, just read again if found
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_TEXT)
|
|
|
+ if( !mReader->read())
|
|
|
+ ThrowException( boost::str( boost::format( "Unexpected end of file while reading beginning of \"%s\" element.") % pName));
|
|
|
+
|
|
|
+ if( mReader->getNodeType() != irr::io::EXN_ELEMENT || strcmp( mReader->getNodeName(), pName) != 0)
|
|
|
+ ThrowException( boost::str( boost::format( "Expected start of \"%s\" element.") % pName));
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Tests for the closing tag of the given element, throws an exception if not found
|
|
|
+void ColladaParser::TestClosing( const char* pName)
|
|
|
+{
|
|
|
+ // check if we're already on the closing tag and return right away
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_ELEMENT_END && strcmp( mReader->getNodeName(), pName) == 0)
|
|
|
+ return;
|
|
|
+
|
|
|
+ // if not, read some more
|
|
|
+ if( !mReader->read())
|
|
|
+ ThrowException( boost::str( boost::format( "Unexpected end of file while reading end of \"%s\" element.") % pName));
|
|
|
+ // whitespace in front is ok, just read again if found
|
|
|
+ if( mReader->getNodeType() == irr::io::EXN_TEXT)
|
|
|
+ if( !mReader->read())
|
|
|
+ ThrowException( boost::str( boost::format( "Unexpected end of file while reading end of \"%s\" element.") % pName));
|
|
|
+
|
|
|
+ // but this has the be the closing tag, or we're lost
|
|
|
+ if( mReader->getNodeType() != irr::io::EXN_ELEMENT_END || strcmp( mReader->getNodeName(), pName) != 0)
|
|
|
+ ThrowException( boost::str( boost::format( "Expected end of \"%s\" element.") % pName));
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Returns the index of the named attribute or -1 if not found. Does not throw, therefore useful for optional attributes
|
|
|
+int ColladaParser::GetAttribute( const char* pAttr) const
|
|
|
+{
|
|
|
+ int index = TestAttribute( pAttr);
|
|
|
+ if( index != -1)
|
|
|
+ return index;
|
|
|
+
|
|
|
+ // attribute not found -> throw an exception
|
|
|
+ ThrowException( boost::str( boost::format( "Expected attribute \"%s\" at element \"%s\".") % pAttr % mReader->getNodeName()));
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Tests the present element for the presence of one attribute, returns its index or throws an exception if not found
|
|
|
+int ColladaParser::TestAttribute( const char* pAttr) const
|
|
|
+{
|
|
|
+ for( int a = 0; a < mReader->getAttributeCount(); a++)
|
|
|
+ if( strcmp( mReader->getAttributeName( a), pAttr) == 0)
|
|
|
+ return a;
|
|
|
+
|
|
|
+ return -1;
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the text contents of an element, throws an exception if not given. Skips leading whitespace.
|
|
|
+const char* ColladaParser::GetTextContent()
|
|
|
+{
|
|
|
+ const char* sz = TestTextContent();
|
|
|
+ if(!sz) {
|
|
|
+ ThrowException( "Invalid contents in element \"n\".");
|
|
|
+ }
|
|
|
+ return sz;
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Reads the text contents of an element, returns NULL if not given. Skips leading whitespace.
|
|
|
+const char* ColladaParser::TestTextContent()
|
|
|
+{
|
|
|
+ // present node should be the beginning of an element
|
|
|
+ if( mReader->getNodeType() != irr::io::EXN_ELEMENT || mReader->isEmptyElement())
|
|
|
+ ThrowException( "Expected opening element");
|
|
|
+
|
|
|
+ // read contents of the element
|
|
|
+ if( !mReader->read())
|
|
|
+ ThrowException( "Unexpected end of file while reading n element.");
|
|
|
+ if( mReader->getNodeType() != irr::io::EXN_TEXT)
|
|
|
+ return NULL;
|
|
|
+
|
|
|
+ // skip leading whitespace
|
|
|
+ const char* text = mReader->getNodeData();
|
|
|
+ SkipSpacesAndLineEnd( &text);
|
|
|
+
|
|
|
+ return text;
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Calculates the resulting transformation fromm all the given transform steps
|
|
|
+aiMatrix4x4 ColladaParser::CalculateResultTransform( const std::vector<Transform>& pTransforms) const
|
|
|
+{
|
|
|
+ aiMatrix4x4 res;
|
|
|
+
|
|
|
+ for( std::vector<Transform>::const_iterator it = pTransforms.begin(); it != pTransforms.end(); ++it)
|
|
|
+ {
|
|
|
+ const Transform& tf = *it;
|
|
|
+ switch( tf.mType)
|
|
|
+ {
|
|
|
+ case TF_LOOKAT:
|
|
|
+ {
|
|
|
+ aiVector3D pos( tf.f[0], tf.f[1], tf.f[2]);
|
|
|
+ aiVector3D dstPos( tf.f[3], tf.f[4], tf.f[5]);
|
|
|
+ aiVector3D up = aiVector3D( tf.f[6], tf.f[7], tf.f[8]).Normalize();
|
|
|
+ aiVector3D dir = aiVector3D( dstPos - pos).Normalize();
|
|
|
+ aiVector3D right = (dir ^ up).Normalize();
|
|
|
+
|
|
|
+ res *= aiMatrix4x4(
|
|
|
+ right.x, up.x, -dir.x, pos.x,
|
|
|
+ right.y, up.y, -dir.y, pos.y,
|
|
|
+ right.z, up.z, -dir.z, pos.z,
|
|
|
+ 0, 0, 0, 1);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case TF_ROTATE:
|
|
|
+ {
|
|
|
+ aiMatrix4x4 rot;
|
|
|
+ float angle = tf.f[3] * float( AI_MATH_PI) / 180.0f;
|
|
|
+ aiVector3D axis( tf.f[0], tf.f[1], tf.f[2]);
|
|
|
+ aiMatrix4x4::Rotation( angle, axis, rot);
|
|
|
+ res *= rot;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case TF_TRANSLATE:
|
|
|
+ {
|
|
|
+ aiMatrix4x4 trans;
|
|
|
+ aiMatrix4x4::Translation( aiVector3D( tf.f[0], tf.f[1], tf.f[2]), trans);
|
|
|
+ res *= trans;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case TF_SCALE:
|
|
|
+ {
|
|
|
+ aiMatrix4x4 scale( tf.f[0], 0.0f, 0.0f, 0.0f, 0.0f, tf.f[1], 0.0f, 0.0f, 0.0f, 0.0f, tf.f[2], 0.0f,
|
|
|
+ 0.0f, 0.0f, 0.0f, 1.0f);
|
|
|
+ res *= scale;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ case TF_SKEW:
|
|
|
+ // TODO: (thom)
|
|
|
+ ai_assert( false);
|
|
|
+ break;
|
|
|
+ case TF_MATRIX:
|
|
|
+ {
|
|
|
+ aiMatrix4x4 mat( tf.f[0], tf.f[1], tf.f[2], tf.f[3], tf.f[4], tf.f[5], tf.f[6], tf.f[7],
|
|
|
+ tf.f[8], tf.f[9], tf.f[10], tf.f[11], tf.f[12], tf.f[13], tf.f[14], tf.f[15]);
|
|
|
+ res *= mat;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ default:
|
|
|
+ assert( false);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return res;
|
|
|
+}
|
|
|
+
|
|
|
+// ------------------------------------------------------------------------------------------------
|
|
|
+// Determines the input data type for the given semantic string
|
|
|
+Collada::InputType ColladaParser::GetTypeForSemantic( const std::string& pSemantic)
|
|
|
+{
|
|
|
+ if( pSemantic == "POSITION")
|
|
|
+ return IT_Position;
|
|
|
+ else if( pSemantic == "TEXCOORD")
|
|
|
+ return IT_Texcoord;
|
|
|
+ else if( pSemantic == "NORMAL")
|
|
|
+ return IT_Normal;
|
|
|
+ else if( pSemantic == "COLOR")
|
|
|
+ return IT_Color;
|
|
|
+ else if( pSemantic == "VERTEX")
|
|
|
+ return IT_Vertex;
|
|
|
+ else if( pSemantic == "BINORMAL" || pSemantic == "TEXBINORMAL")
|
|
|
+ return IT_Bitangent;
|
|
|
+ else if( pSemantic == "TANGENT" || pSemantic == "TEXTANGENT")
|
|
|
+ return IT_Tangent;
|
|
|
+
|
|
|
+ DefaultLogger::get()->warn( boost::str( boost::format( "Unknown vertex input type \"%s\". Ignoring.") % pSemantic));
|
|
|
+ return IT_Invalid;
|
|
|
+}
|
|
|
+
|
|
|
+#endif // !! ASSIMP_BUILD_NO_DAE_IMPORTER
|