c865999420
- collada 1.5.0 textures are readable now - cube and volume maps and mip initializations are skipped Material system - unified texture types. Added lightmap, displacement, reflection and 'unknown'. Everyone should be happy now (intending to remove ambient textures from the API). ComputeUV Changed mapping axis property to vec3 Adapted step WARN: produces mirrored uv coords now. LH issue. IRR Updated to new texture types 3DS Updated to new texture types NFF Updated to new texture types git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@340 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
545 lines
16 KiB
C++
545 lines
16 KiB
C++
/*
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---------------------------------------------------------------------------
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Open Asset Import Library (ASSIMP)
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---------------------------------------------------------------------------
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Copyright (c) 2006-2008, ASSIMP Development Team
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All rights reserved.
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Redistribution and use of this software in source and binary forms,
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with or without modification, are permitted provided that the following
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conditions are met:
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* Redistributions of source code must retain the above
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copyright notice, this list of conditions and the
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following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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* Neither the name of the ASSIMP team, nor the names of its
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contributors may be used to endorse or promote products
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derived from this software without specific prior
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written permission of the ASSIMP Development Team.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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---------------------------------------------------------------------------
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*/
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/** @file Implementation of the IrrMesh importer class */
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#include "AssimpPCH.h"
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#include "IRRMeshLoader.h"
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#include "ParsingUtils.h"
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#include "fast_atof.h"
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using namespace Assimp;
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// ------------------------------------------------------------------------------------------------
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// Constructor to be privately used by Importer
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IRRMeshImporter::IRRMeshImporter()
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{
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// nothing to do here
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}
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// ------------------------------------------------------------------------------------------------
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// Destructor, private as well
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IRRMeshImporter::~IRRMeshImporter()
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{
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// nothing to do here
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}
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// ------------------------------------------------------------------------------------------------
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// Returns whether the class can handle the format of the given file.
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bool IRRMeshImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler) const
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{
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/* NOTE: A simple check for the file extension is not enough
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* here. Irrmesh and irr are easy, but xml is too generic
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* and could be collada, too. So we need to open the file and
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* search for typical tokens.
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*/
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std::string::size_type pos = pFile.find_last_of('.');
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// no file extension - can't read
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if( pos == std::string::npos)
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return false;
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std::string extension = pFile.substr( pos);
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for (std::string::iterator i = extension.begin(); i != extension.end();++i)
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*i = ::tolower(*i);
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if (extension == ".irrmesh")return true;
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else if (extension == ".xml")
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{
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/* If CanRead() is called to check whether the loader
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* supports a specific file extension in general we
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* must return true here.
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*/
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if (!pIOHandler)return true;
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const char* tokens[] = {"irrmesh"};
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return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1);
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}
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return false;
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}
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// ------------------------------------------------------------------------------------------------
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// Imports the given file into the given scene structure.
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void IRRMeshImporter::InternReadFile( const std::string& pFile,
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aiScene* pScene, IOSystem* pIOHandler)
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{
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boost::scoped_ptr<IOStream> file( pIOHandler->Open( pFile));
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// Check whether we can read from the file
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if( file.get() == NULL)
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throw new ImportErrorException( "Failed to open IRRMESH file " + pFile + "");
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// Construct the irrXML parser
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CIrrXML_IOStreamReader st(file.get());
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reader = createIrrXMLReader((IFileReadCallBack*) &st);
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// final data
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std::vector<aiMaterial*> materials;
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std::vector<aiMesh*> meshes;
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materials.reserve (5);
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meshes.reserve (5);
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// temporary data - current mesh buffer
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aiMaterial* curMat = NULL;
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aiMesh* curMesh = NULL;
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unsigned int curMatFlags;
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std::vector<aiVector3D> curVertices,curNormals,curTangents,curBitangents;
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std::vector<aiColor4D> curColors;
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std::vector<aiVector3D> curUVs,curUV2s;
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// some temporary variables
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int textMeaning = 0;
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int vertexFormat = 0; // 0 = normal; 1 = 2 tcoords, 2 = tangents
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bool useColors = false;
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bool needLightMap = false;
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// Parse the XML file
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while (reader->read())
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{
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switch (reader->getNodeType())
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{
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case EXN_ELEMENT:
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if (!ASSIMP_stricmp(reader->getNodeName(),"buffer") && (curMat || curMesh))
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{
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// end of previous buffer. A material and a mesh should be there
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if ( !curMat || !curMesh)
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{
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DefaultLogger::get()->error("IRRMESH: A buffer must contain a mesh and a material");
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delete curMat;
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delete curMesh;
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}
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else
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{
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materials.push_back(curMat);
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meshes.push_back(curMesh);
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}
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curMat = NULL;
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curMesh = NULL;
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curVertices.clear();
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curColors.clear();
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curNormals.clear();
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curUV2s.clear();
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curUVs.clear();
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curTangents.clear();
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curBitangents.clear();
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}
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if (!ASSIMP_stricmp(reader->getNodeName(),"material"))
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{
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if (curMat)
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{
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DefaultLogger::get()->warn("IRRMESH: Only one material description per buffer, please");
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delete curMat;curMat = NULL;
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}
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curMat = ParseMaterial(curMatFlags);
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}
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/* no else here! */ if (!ASSIMP_stricmp(reader->getNodeName(),"vertices"))
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{
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int num = reader->getAttributeValueAsInt("vertexCount");
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if (!num)
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{
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// This is possible ... remove the mesh from the list
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// and skip further reading
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DefaultLogger::get()->warn("IRRMESH: Found mesh with zero vertices");
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delete curMat;curMat = NULL;
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curMesh = NULL;
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textMeaning = 0;
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continue;
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}
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curVertices.reserve (num);
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curNormals.reserve (num);
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curColors.reserve (num);
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curUVs.reserve (num);
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// Determine the file format
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const char* t = reader->getAttributeValueSafe("type");
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if (!ASSIMP_stricmp("2tcoords", t))
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{
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curUV2s.reserve (num);
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vertexFormat = 1;
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if (curMatFlags & AI_IRRMESH_EXTRA_2ND_TEXTURE)
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{
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// *********************************************************
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// We have a second texture! So use this UV channel
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// for it. The 2nd texture can be either a normal
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// texture (solid_2layer or lightmap_xxx) or a normal
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// map (normal_..., parallax_...)
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// *********************************************************
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int idx = 1;
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MaterialHelper* mat = ( MaterialHelper* ) curMat;
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if (curMatFlags & (AI_IRRMESH_MAT_solid_2layer | AI_IRRMESH_MAT_lightmap)){
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mat->AddProperty(&idx,1,AI_MATKEY_UVWSRC_LIGHTMAP(0));
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}
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else if (curMatFlags & AI_IRRMESH_MAT_normalmap_solid){
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mat->AddProperty(&idx,1,AI_MATKEY_UVWSRC_NORMALS(0));
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}
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}
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}
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else if (!ASSIMP_stricmp("tangents", t))
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{
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curTangents.reserve (num);
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curBitangents.reserve (num);
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vertexFormat = 2;
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}
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else if (ASSIMP_stricmp("standard", t))
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{
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delete curMat;
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DefaultLogger::get()->warn("IRRMESH: Unknown vertex format");
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}
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else vertexFormat = 0;
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textMeaning = 1;
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}
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else if (!ASSIMP_stricmp(reader->getNodeName(),"indices"))
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{
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if (curVertices.empty() && curMat)
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{
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delete curMat;
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throw new ImportErrorException("IRRMESH: indices must come after vertices");
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}
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textMeaning = 2;
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// start a new mesh
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curMesh = new aiMesh();
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// allocate storage for all faces
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curMesh->mNumVertices = reader->getAttributeValueAsInt("indexCount");
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if (!curMesh->mNumVertices)
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{
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// This is possible ... remove the mesh from the list
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// and skip further reading
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DefaultLogger::get()->warn("IRRMESH: Found mesh with zero indices");
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// mesh - away
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delete curMesh; curMesh = NULL;
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// material - away
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delete curMat;curMat = NULL;
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textMeaning = 0;
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continue;
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}
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if (curMesh->mNumVertices % 3)
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{
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DefaultLogger::get()->warn("IRRMESH: Number if indices isn't divisible by 3");
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}
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curMesh->mNumFaces = curMesh->mNumVertices / 3;
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curMesh->mFaces = new aiFace[curMesh->mNumFaces];
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// setup some members
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curMesh->mMaterialIndex = (unsigned int)materials.size();
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curMesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
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// allocate storage for all vertices
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curMesh->mVertices = new aiVector3D[curMesh->mNumVertices];
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if (curNormals.size() == curVertices.size())
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{
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curMesh->mNormals = new aiVector3D[curMesh->mNumVertices];
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}
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if (curTangents.size() == curVertices.size())
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{
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curMesh->mTangents = new aiVector3D[curMesh->mNumVertices];
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}
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if (curBitangents.size() == curVertices.size())
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{
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curMesh->mBitangents = new aiVector3D[curMesh->mNumVertices];
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}
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if (curColors.size() == curVertices.size() && useColors)
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{
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curMesh->mColors[0] = new aiColor4D[curMesh->mNumVertices];
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}
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if (curUVs.size() == curVertices.size())
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{
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curMesh->mTextureCoords[0] = new aiVector3D[curMesh->mNumVertices];
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}
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if (curUV2s.size() == curVertices.size())
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{
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curMesh->mTextureCoords[1] = new aiVector3D[curMesh->mNumVertices];
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}
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}
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break;
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case EXN_TEXT:
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{
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const char* sz = reader->getNodeData();
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if (textMeaning == 1)
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{
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textMeaning = 0;
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// read vertices
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do
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{
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SkipSpacesAndLineEnd(&sz);
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aiVector3D temp;aiColor4D c;
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// Read the vertex position
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sz = fast_atof_move(sz,(float&)temp.x);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.y);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.z);
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SkipSpaces(&sz);
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curVertices.push_back(temp);
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// Read the vertex normals
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sz = fast_atof_move(sz,(float&)temp.x);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.y);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.z);
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SkipSpaces(&sz);
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curNormals.push_back(temp);
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// read the vertex colors
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uint32_t clr = strtol16(sz,&sz);
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ColorFromARGBPacked(clr,c);
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if (!curColors.empty() && c != *(curColors.end()-1))
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useColors = true;
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curColors.push_back(c);
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SkipSpaces(&sz);
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// read the first UV coordinate set
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sz = fast_atof_move(sz,(float&)temp.x);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.y);
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SkipSpaces(&sz);
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temp.z = 0.f;
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temp.y = 1.f - temp.y; // DX to OGL
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curUVs.push_back(temp);
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// read the (optional) second UV coordinate set
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if (vertexFormat == 1)
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{
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sz = fast_atof_move(sz,(float&)temp.x);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.y);
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temp.y = 1.f - temp.y; // DX to OGL
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curUV2s.push_back(temp);
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}
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// read optional tangent and bitangent vectors
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else if (vertexFormat == 2)
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{
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// tangents
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sz = fast_atof_move(sz,(float&)temp.x);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.z);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.y);
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SkipSpaces(&sz);
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temp.y *= -1.0f;
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curTangents.push_back(temp);
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// bitangents
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sz = fast_atof_move(sz,(float&)temp.x);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.z);
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SkipSpaces(&sz);
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sz = fast_atof_move(sz,(float&)temp.y);
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SkipSpaces(&sz);
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temp.y *= -1.0f;
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curBitangents.push_back(temp);
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}
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}
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/* IMPORTANT: We assume that each vertex is specified in one
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line. So we can skip the rest of the line - unknown vertex
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elements are ignored.
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*/
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while (SkipLine(&sz));
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}
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else if (textMeaning == 2)
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{
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textMeaning = 0;
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// read indices
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aiFace* curFace = curMesh->mFaces;
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aiFace* const faceEnd = curMesh->mFaces + curMesh->mNumFaces;
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aiVector3D* pcV = curMesh->mVertices;
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aiVector3D* pcN = curMesh->mNormals;
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aiVector3D* pcT = curMesh->mTangents;
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aiVector3D* pcB = curMesh->mBitangents;
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aiColor4D* pcC0 = curMesh->mColors[0];
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aiVector3D* pcT0 = curMesh->mTextureCoords[0];
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aiVector3D* pcT1 = curMesh->mTextureCoords[1];
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unsigned int curIdx = 0;
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unsigned int total = 0;
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while(SkipSpacesAndLineEnd(&sz))
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{
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if (curFace >= faceEnd)
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{
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DefaultLogger::get()->error("IRRMESH: Too many indices");
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break;
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}
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if (!curIdx)
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{
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curFace->mNumIndices = 3;
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curFace->mIndices = new unsigned int[3];
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}
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unsigned int idx = strtol10(sz,&sz);
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if (idx >= curVertices.size())
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{
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DefaultLogger::get()->error("IRRMESH: Index out of range");
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idx = 0;
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}
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curFace->mIndices[curIdx] = total++;
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*pcV++ = curVertices[idx];
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if (pcN)*pcN++ = curNormals[idx];
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if (pcT)*pcT++ = curTangents[idx];
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if (pcB)*pcB++ = curBitangents[idx];
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if (pcC0)*pcC0++ = curColors[idx];
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if (pcT0)*pcT0++ = curUVs[idx];
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if (pcT1)*pcT1++ = curUV2s[idx];
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if (++curIdx == 3)
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{
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++curFace;
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curIdx = 0;
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}
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}
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if (curFace != faceEnd)
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DefaultLogger::get()->error("IRRMESH: Not enough indices");
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// Finish processing the mesh - do some small material workarounds
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if (curMatFlags & AI_IRRMESH_MAT_trans_vertex_alpha && !useColors)
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{
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// Take the opacity value of the current material
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// from the common vertex color alpha
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MaterialHelper* mat = (MaterialHelper*)curMat;
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mat->AddProperty(&curColors[0].a,1,AI_MATKEY_OPACITY);
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}
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}}
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break;
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default:
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// GCC complains here ...
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break;
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};
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}
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// End of the last buffer. A material and a mesh should be there
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if (curMat || curMesh)
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{
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if ( !curMat || !curMesh)
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{
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DefaultLogger::get()->error("IRRMESH: A buffer must contain a mesh and a material");
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delete curMat;
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delete curMesh;
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}
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else
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{
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materials.push_back(curMat);
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meshes.push_back(curMesh);
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}
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}
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if (materials.empty())
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throw new ImportErrorException("IRRMESH: Unable to read a mesh from this file");
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// now generate the output scene
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pScene->mNumMeshes = (unsigned int)meshes.size();
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pScene->mMeshes = new aiMesh*[pScene->mNumMeshes];
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for (unsigned int i = 0; i < pScene->mNumMeshes;++i)
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{
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pScene->mMeshes[i] = meshes[i];
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// clean this value ...
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pScene->mMeshes[i]->mNumUVComponents[3] = 0;
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}
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pScene->mNumMaterials = (unsigned int)materials.size();
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pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
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::memcpy(pScene->mMaterials,&materials[0],sizeof(void*)*pScene->mNumMaterials);
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pScene->mRootNode = new aiNode();
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pScene->mRootNode->mName.Set("<IRRMesh>");
|
|
pScene->mRootNode->mNumMeshes = pScene->mNumMeshes;
|
|
pScene->mRootNode->mMeshes = new unsigned int[pScene->mNumMeshes];
|
|
|
|
for (unsigned int i = 0; i < pScene->mNumMeshes;++i)
|
|
pScene->mRootNode->mMeshes[i] = i;
|
|
|
|
// transformation matrix to convert from IRRMESH to ASSIMP coordinates
|
|
pScene->mRootNode->mTransformation *= AI_TO_IRR_MATRIX;
|
|
|
|
// clean up and return
|
|
delete reader;
|
|
AI_DEBUG_INVALIDATE_PTR(reader);
|
|
}
|