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Diffstat (limited to 'NvCloth/samples/external/assimp-4.1.0/code/ACLoader.cpp')
| -rw-r--r-- | NvCloth/samples/external/assimp-4.1.0/code/ACLoader.cpp | 909 |
1 files changed, 909 insertions, 0 deletions
diff --git a/NvCloth/samples/external/assimp-4.1.0/code/ACLoader.cpp b/NvCloth/samples/external/assimp-4.1.0/code/ACLoader.cpp new file mode 100644 index 0000000..a30baa7 --- /dev/null +++ b/NvCloth/samples/external/assimp-4.1.0/code/ACLoader.cpp @@ -0,0 +1,909 @@ + +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2017, assimp team + + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the following +conditions are met: + +* Redistributions of source code must retain the above + copyright notice, this list of conditions and the + following disclaimer. + +* Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the + following disclaimer in the documentation and/or other + materials provided with the distribution. + +* Neither the name of the assimp team, nor the names of its + contributors may be used to endorse or promote products + derived from this software without specific prior + written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +--------------------------------------------------------------------------- +*/ + +/** @file Implementation of the AC3D importer class */ + + + +#ifndef ASSIMP_BUILD_NO_AC_IMPORTER + +// internal headers +#include "ACLoader.h" +#include "ParsingUtils.h" +#include "fast_atof.h" +#include "Subdivision.h" +#include "Importer.h" +#include "BaseImporter.h" +#include <assimp/Importer.hpp> +#include <assimp/light.h> +#include <assimp/DefaultLogger.hpp> +#include <assimp/material.h> +#include <assimp/scene.h> +#include <assimp/config.h> +#include <assimp/IOSystem.hpp> +#include <assimp/importerdesc.h> +#include <memory> + +using namespace Assimp; + +static const aiImporterDesc desc = { + "AC3D Importer", + "", + "", + "", + aiImporterFlags_SupportTextFlavour, + 0, + 0, + 0, + 0, + "ac acc ac3d" +}; + +// ------------------------------------------------------------------------------------------------ +// skip to the next token +#define AI_AC_SKIP_TO_NEXT_TOKEN() \ + if (!SkipSpaces(&buffer)) \ + { \ + DefaultLogger::get()->error("AC3D: Unexpected EOF/EOL"); \ + continue; \ + } + +// ------------------------------------------------------------------------------------------------ +// read a string (may be enclosed in double quotation marks). buffer must point to " +#define AI_AC_GET_STRING(out) \ + if (*buffer == '\0') { \ + throw DeadlyImportError("AC3D: Unexpected EOF in string"); \ + } \ + ++buffer; \ + const char* sz = buffer; \ + while ('\"' != *buffer) \ + { \ + if (IsLineEnd( *buffer )) \ + { \ + DefaultLogger::get()->error("AC3D: Unexpected EOF/EOL in string"); \ + out = "ERROR"; \ + break; \ + } \ + ++buffer; \ + } \ + if (IsLineEnd( *buffer ))continue; \ + out = std::string(sz,(unsigned int)(buffer-sz)); \ + ++buffer; + + +// ------------------------------------------------------------------------------------------------ +// read 1 to n floats prefixed with an optional predefined identifier +#define AI_AC_CHECKED_LOAD_FLOAT_ARRAY(name,name_length,num,out) \ + AI_AC_SKIP_TO_NEXT_TOKEN(); \ + if (name_length) \ + { \ + if (strncmp(buffer,name,name_length) || !IsSpace(buffer[name_length])) \ + { \ + DefaultLogger::get()->error("AC3D: Unexpexted token. " name " was expected."); \ + continue; \ + } \ + buffer += name_length+1; \ + } \ + for (unsigned int i = 0; i < num;++i) \ + { \ + AI_AC_SKIP_TO_NEXT_TOKEN(); \ + buffer = fast_atoreal_move<float>(buffer,((float*)out)[i]); \ + } + + +// ------------------------------------------------------------------------------------------------ +// Constructor to be privately used by Importer +AC3DImporter::AC3DImporter() + : buffer(), + configSplitBFCull(), + configEvalSubdivision(), + mNumMeshes(), + mLights(), + lights(), + groups(), + polys(), + worlds() +{ + // nothing to be done here +} + +// ------------------------------------------------------------------------------------------------ +// Destructor, private as well +AC3DImporter::~AC3DImporter() +{ + // nothing to be done here +} + +// ------------------------------------------------------------------------------------------------ +// Returns whether the class can handle the format of the given file. +bool AC3DImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const +{ + std::string extension = GetExtension(pFile); + + // fixme: are acc and ac3d *really* used? Some sources say they are + if(extension == "ac" || extension == "ac3d" || extension == "acc") { + return true; + } + if (!extension.length() || checkSig) { + uint32_t token = AI_MAKE_MAGIC("AC3D"); + return CheckMagicToken(pIOHandler,pFile,&token,1,0); + } + return false; +} + +// ------------------------------------------------------------------------------------------------ +// Loader meta information +const aiImporterDesc* AC3DImporter::GetInfo () const +{ + return &desc; +} + +// ------------------------------------------------------------------------------------------------ +// Get a pointer to the next line from the file +bool AC3DImporter::GetNextLine( ) +{ + SkipLine(&buffer); + return SkipSpaces(&buffer); +} + +// ------------------------------------------------------------------------------------------------ +// Parse an object section in an AC file +void AC3DImporter::LoadObjectSection(std::vector<Object>& objects) +{ + if (!TokenMatch(buffer,"OBJECT",6)) + return; + + SkipSpaces(&buffer); + + ++mNumMeshes; + + objects.push_back(Object()); + Object& obj = objects.back(); + + aiLight* light = NULL; + if (!ASSIMP_strincmp(buffer,"light",5)) + { + // This is a light source. Add it to the list + mLights->push_back(light = new aiLight()); + + // Return a point light with no attenuation + light->mType = aiLightSource_POINT; + light->mColorDiffuse = light->mColorSpecular = aiColor3D(1.f,1.f,1.f); + light->mAttenuationConstant = 1.f; + + // Generate a default name for both the light source and the node + // FIXME - what's the right way to print a size_t? Is 'zu' universally available? stick with the safe version. + light->mName.length = ::ai_snprintf(light->mName.data, MAXLEN, "ACLight_%i",static_cast<unsigned int>(mLights->size())-1); + obj.name = std::string( light->mName.data ); + + DefaultLogger::get()->debug("AC3D: Light source encountered"); + obj.type = Object::Light; + } + else if (!ASSIMP_strincmp(buffer,"group",5)) + { + obj.type = Object::Group; + } + else if (!ASSIMP_strincmp(buffer,"world",5)) + { + obj.type = Object::World; + } + else obj.type = Object::Poly; + while (GetNextLine()) + { + if (TokenMatch(buffer,"kids",4)) + { + SkipSpaces(&buffer); + unsigned int num = strtoul10(buffer,&buffer); + GetNextLine(); + if (num) + { + // load the children of this object recursively + obj.children.reserve(num); + for (unsigned int i = 0; i < num; ++i) + LoadObjectSection(obj.children); + } + return; + } + else if (TokenMatch(buffer,"name",4)) + { + SkipSpaces(&buffer); + AI_AC_GET_STRING(obj.name); + + // If this is a light source, we'll also need to store + // the name of the node in it. + if (light) + { + light->mName.Set(obj.name); + } + } + else if (TokenMatch(buffer,"texture",7)) + { + SkipSpaces(&buffer); + AI_AC_GET_STRING(obj.texture); + } + else if (TokenMatch(buffer,"texrep",6)) + { + SkipSpaces(&buffer); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("",0,2,&obj.texRepeat); + if (!obj.texRepeat.x || !obj.texRepeat.y) + obj.texRepeat = aiVector2D (1.f,1.f); + } + else if (TokenMatch(buffer,"texoff",6)) + { + SkipSpaces(&buffer); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("",0,2,&obj.texOffset); + } + else if (TokenMatch(buffer,"rot",3)) + { + SkipSpaces(&buffer); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("",0,9,&obj.rotation); + } + else if (TokenMatch(buffer,"loc",3)) + { + SkipSpaces(&buffer); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("",0,3,&obj.translation); + } + else if (TokenMatch(buffer,"subdiv",6)) + { + SkipSpaces(&buffer); + obj.subDiv = strtoul10(buffer,&buffer); + } + else if (TokenMatch(buffer,"crease",6)) + { + SkipSpaces(&buffer); + obj.crease = fast_atof(buffer); + } + else if (TokenMatch(buffer,"numvert",7)) + { + SkipSpaces(&buffer); + + unsigned int t = strtoul10(buffer,&buffer); + if (t >= AI_MAX_ALLOC(aiVector3D)) { + throw DeadlyImportError("AC3D: Too many vertices, would run out of memory"); + } + obj.vertices.reserve(t); + for (unsigned int i = 0; i < t;++i) + { + if (!GetNextLine()) + { + DefaultLogger::get()->error("AC3D: Unexpected EOF: not all vertices have been parsed yet"); + break; + } + else if (!IsNumeric(*buffer)) + { + DefaultLogger::get()->error("AC3D: Unexpected token: not all vertices have been parsed yet"); + --buffer; // make sure the line is processed a second time + break; + } + obj.vertices.push_back(aiVector3D()); + aiVector3D& v = obj.vertices.back(); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("",0,3,&v.x); + } + } + else if (TokenMatch(buffer,"numsurf",7)) + { + SkipSpaces(&buffer); + + bool Q3DWorkAround = false; + + const unsigned int t = strtoul10(buffer,&buffer); + obj.surfaces.reserve(t); + for (unsigned int i = 0; i < t;++i) + { + GetNextLine(); + if (!TokenMatch(buffer,"SURF",4)) + { + // FIX: this can occur for some files - Quick 3D for + // example writes no surf chunks + if (!Q3DWorkAround) + { + DefaultLogger::get()->warn("AC3D: SURF token was expected"); + DefaultLogger::get()->debug("Continuing with Quick3D Workaround enabled"); + } + --buffer; // make sure the line is processed a second time + // break; --- see fix notes above + + Q3DWorkAround = true; + } + SkipSpaces(&buffer); + obj.surfaces.push_back(Surface()); + Surface& surf = obj.surfaces.back(); + surf.flags = strtoul_cppstyle(buffer); + + while (1) + { + if(!GetNextLine()) + { + throw DeadlyImportError("AC3D: Unexpected EOF: surface is incomplete"); + } + if (TokenMatch(buffer,"mat",3)) + { + SkipSpaces(&buffer); + surf.mat = strtoul10(buffer); + } + else if (TokenMatch(buffer,"refs",4)) + { + // --- see fix notes above + if (Q3DWorkAround) + { + if (!surf.entries.empty()) + { + buffer -= 6; + break; + } + } + + SkipSpaces(&buffer); + const unsigned int m = strtoul10(buffer); + surf.entries.reserve(m); + + obj.numRefs += m; + + for (unsigned int k = 0; k < m; ++k) + { + if(!GetNextLine()) + { + DefaultLogger::get()->error("AC3D: Unexpected EOF: surface references are incomplete"); + break; + } + surf.entries.push_back(Surface::SurfaceEntry()); + Surface::SurfaceEntry& entry = surf.entries.back(); + + entry.first = strtoul10(buffer,&buffer); + SkipSpaces(&buffer); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("",0,2,&entry.second); + } + } + else + { + + --buffer; // make sure the line is processed a second time + break; + } + } + } + } + } + DefaultLogger::get()->error("AC3D: Unexpected EOF: \'kids\' line was expected"); +} + +// ------------------------------------------------------------------------------------------------ +// Convert a material from AC3DImporter::Material to aiMaterial +void AC3DImporter::ConvertMaterial(const Object& object, + const Material& matSrc, + aiMaterial& matDest) +{ + aiString s; + + if (matSrc.name.length()) + { + s.Set(matSrc.name); + matDest.AddProperty(&s,AI_MATKEY_NAME); + } + if (object.texture.length()) + { + s.Set(object.texture); + matDest.AddProperty(&s,AI_MATKEY_TEXTURE_DIFFUSE(0)); + + // UV transformation + if (1.f != object.texRepeat.x || 1.f != object.texRepeat.y || + object.texOffset.x || object.texOffset.y) + { + aiUVTransform transform; + transform.mScaling = object.texRepeat; + transform.mTranslation = object.texOffset; + matDest.AddProperty(&transform,1,AI_MATKEY_UVTRANSFORM_DIFFUSE(0)); + } + } + + matDest.AddProperty<aiColor3D>(&matSrc.rgb,1, AI_MATKEY_COLOR_DIFFUSE); + matDest.AddProperty<aiColor3D>(&matSrc.amb,1, AI_MATKEY_COLOR_AMBIENT); + matDest.AddProperty<aiColor3D>(&matSrc.emis,1,AI_MATKEY_COLOR_EMISSIVE); + matDest.AddProperty<aiColor3D>(&matSrc.spec,1,AI_MATKEY_COLOR_SPECULAR); + + int n; + if (matSrc.shin) + { + n = aiShadingMode_Phong; + matDest.AddProperty<float>(&matSrc.shin,1,AI_MATKEY_SHININESS); + } + else n = aiShadingMode_Gouraud; + matDest.AddProperty<int>(&n,1,AI_MATKEY_SHADING_MODEL); + + float f = 1.f - matSrc.trans; + matDest.AddProperty<float>(&f,1,AI_MATKEY_OPACITY); +} + +// ------------------------------------------------------------------------------------------------ +// Converts the loaded data to the internal verbose representation +aiNode* AC3DImporter::ConvertObjectSection(Object& object, + std::vector<aiMesh*>& meshes, + std::vector<aiMaterial*>& outMaterials, + const std::vector<Material>& materials, + aiNode* parent) +{ + aiNode* node = new aiNode(); + node->mParent = parent; + if (object.vertices.size()) + { + if (!object.surfaces.size() || !object.numRefs) + { + /* " An object with 7 vertices (no surfaces, no materials defined). + This is a good way of getting point data into AC3D. + The Vertex->create convex-surface/object can be used on these + vertices to 'wrap' a 3d shape around them " + (http://www.opencity.info/html/ac3dfileformat.html) + + therefore: if no surfaces are defined return point data only + */ + + DefaultLogger::get()->info("AC3D: No surfaces defined in object definition, " + "a point list is returned"); + + meshes.push_back(new aiMesh()); + aiMesh* mesh = meshes.back(); + + mesh->mNumFaces = mesh->mNumVertices = (unsigned int)object.vertices.size(); + aiFace* faces = mesh->mFaces = new aiFace[mesh->mNumFaces]; + aiVector3D* verts = mesh->mVertices = new aiVector3D[mesh->mNumVertices]; + + for (unsigned int i = 0; i < mesh->mNumVertices;++i,++faces,++verts) + { + *verts = object.vertices[i]; + faces->mNumIndices = 1; + faces->mIndices = new unsigned int[1]; + faces->mIndices[0] = i; + } + + // use the primary material in this case. this should be the + // default material if all objects of the file contain points + // and no faces. + mesh->mMaterialIndex = 0; + outMaterials.push_back(new aiMaterial()); + ConvertMaterial(object, materials[0], *outMaterials.back()); + } + else + { + // need to generate one or more meshes for this object. + // find out how many different materials we have + typedef std::pair< unsigned int, unsigned int > IntPair; + typedef std::vector< IntPair > MatTable; + MatTable needMat(materials.size(),IntPair(0,0)); + + std::vector<Surface>::iterator it,end = object.surfaces.end(); + std::vector<Surface::SurfaceEntry>::iterator it2,end2; + + for (it = object.surfaces.begin(); it != end; ++it) + { + unsigned int idx = (*it).mat; + if (idx >= needMat.size()) + { + DefaultLogger::get()->error("AC3D: material index is out of range"); + idx = 0; + } + if ((*it).entries.empty()) + { + DefaultLogger::get()->warn("AC3D: surface her zero vertex references"); + } + + // validate all vertex indices to make sure we won't crash here + for (it2 = (*it).entries.begin(), + end2 = (*it).entries.end(); it2 != end2; ++it2) + { + if ((*it2).first >= object.vertices.size()) + { + DefaultLogger::get()->warn("AC3D: Invalid vertex reference"); + (*it2).first = 0; + } + } + + if (!needMat[idx].first)++node->mNumMeshes; + + switch ((*it).flags & 0xf) + { + // closed line + case 0x1: + + needMat[idx].first += (unsigned int)(*it).entries.size(); + needMat[idx].second += (unsigned int)(*it).entries.size()<<1u; + break; + + // unclosed line + case 0x2: + + needMat[idx].first += (unsigned int)(*it).entries.size()-1; + needMat[idx].second += ((unsigned int)(*it).entries.size()-1)<<1u; + break; + + // 0 == polygon, else unknown + default: + + if ((*it).flags & 0xf) + { + DefaultLogger::get()->warn("AC3D: The type flag of a surface is unknown"); + (*it).flags &= ~(0xf); + } + + // the number of faces increments by one, the number + // of vertices by surface.numref. + needMat[idx].first++; + needMat[idx].second += (unsigned int)(*it).entries.size(); + }; + } + unsigned int* pip = node->mMeshes = new unsigned int[node->mNumMeshes]; + unsigned int mat = 0; + const size_t oldm = meshes.size(); + for (MatTable::const_iterator cit = needMat.begin(), cend = needMat.end(); + cit != cend; ++cit, ++mat) + { + if (!(*cit).first)continue; + + // allocate a new aiMesh object + *pip++ = (unsigned int)meshes.size(); + aiMesh* mesh = new aiMesh(); + meshes.push_back(mesh); + + mesh->mMaterialIndex = (unsigned int)outMaterials.size(); + outMaterials.push_back(new aiMaterial()); + ConvertMaterial(object, materials[mat], *outMaterials.back()); + + // allocate storage for vertices and normals + mesh->mNumFaces = (*cit).first; + if (mesh->mNumFaces == 0) { + throw DeadlyImportError("AC3D: No faces"); + } else if (mesh->mNumFaces > AI_MAX_ALLOC(aiFace)) { + throw DeadlyImportError("AC3D: Too many faces, would run out of memory"); + } + aiFace* faces = mesh->mFaces = new aiFace[mesh->mNumFaces]; + + mesh->mNumVertices = (*cit).second; + if (mesh->mNumVertices == 0) { + throw DeadlyImportError("AC3D: No vertices"); + } else if (mesh->mNumVertices > AI_MAX_ALLOC(aiVector3D)) { + throw DeadlyImportError("AC3D: Too many vertices, would run out of memory"); + } + aiVector3D* vertices = mesh->mVertices = new aiVector3D[mesh->mNumVertices]; + unsigned int cur = 0; + + // allocate UV coordinates, but only if the texture name for the + // surface is not empty + aiVector3D* uv = NULL; + if(object.texture.length()) + { + uv = mesh->mTextureCoords[0] = new aiVector3D[mesh->mNumVertices]; + mesh->mNumUVComponents[0] = 2; + } + + for (it = object.surfaces.begin(); it != end; ++it) + { + if (mat == (*it).mat) + { + const Surface& src = *it; + + // closed polygon + unsigned int type = (*it).flags & 0xf; + if (!type) + { + aiFace& face = *faces++; + if((face.mNumIndices = (unsigned int)src.entries.size())) + { + face.mIndices = new unsigned int[face.mNumIndices]; + for (unsigned int i = 0; i < face.mNumIndices;++i,++vertices) + { + const Surface::SurfaceEntry& entry = src.entries[i]; + face.mIndices[i] = cur++; + + // copy vertex positions + if (static_cast<unsigned>(vertices - mesh->mVertices) >= mesh->mNumVertices) { + throw DeadlyImportError("AC3D: Invalid number of vertices"); + } + *vertices = object.vertices[entry.first] + object.translation; + + + // copy texture coordinates + if (uv) + { + uv->x = entry.second.x; + uv->y = entry.second.y; + ++uv; + } + } + } + } + else + { + + it2 = (*it).entries.begin(); + + // either a closed or an unclosed line + unsigned int tmp = (unsigned int)(*it).entries.size(); + if (0x2 == type)--tmp; + for (unsigned int m = 0; m < tmp;++m) + { + aiFace& face = *faces++; + + face.mNumIndices = 2; + face.mIndices = new unsigned int[2]; + face.mIndices[0] = cur++; + face.mIndices[1] = cur++; + + // copy vertex positions + if (it2 == (*it).entries.end() ) { + throw DeadlyImportError("AC3D: Bad line"); + } + ai_assert((*it2).first < object.vertices.size()); + *vertices++ = object.vertices[(*it2).first]; + + // copy texture coordinates + if (uv) + { + uv->x = (*it2).second.x; + uv->y = (*it2).second.y; + ++uv; + } + + + if (0x1 == type && tmp-1 == m) + { + // if this is a closed line repeat its beginning now + it2 = (*it).entries.begin(); + } + else ++it2; + + // second point + *vertices++ = object.vertices[(*it2).first]; + + if (uv) + { + uv->x = (*it2).second.x; + uv->y = (*it2).second.y; + ++uv; + } + } + } + } + } + } + + // Now apply catmull clark subdivision if necessary. We split meshes into + // materials which is not done by AC3D during smoothing, so we need to + // collect all meshes using the same material group. + if (object.subDiv) { + if (configEvalSubdivision) { + std::unique_ptr<Subdivider> div(Subdivider::Create(Subdivider::CATMULL_CLARKE)); + DefaultLogger::get()->info("AC3D: Evaluating subdivision surface: "+object.name); + + std::vector<aiMesh*> cpy(meshes.size()-oldm,NULL); + div->Subdivide(&meshes[oldm],cpy.size(),&cpy.front(),object.subDiv,true); + std::copy(cpy.begin(),cpy.end(),meshes.begin()+oldm); + + // previous meshes are deleted vy Subdivide(). + } + else { + DefaultLogger::get()->info("AC3D: Letting the subdivision surface untouched due to my configuration: " + +object.name); + } + } + } + } + + if (object.name.length()) + node->mName.Set(object.name); + else + { + // generate a name depending on the type of the node + switch (object.type) + { + case Object::Group: + node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACGroup_%i",groups++); + break; + case Object::Poly: + node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACPoly_%i",polys++); + break; + case Object::Light: + node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACLight_%i",lights++); + break; + + // there shouldn't be more than one world, but we don't care + case Object::World: + node->mName.length = ::ai_snprintf(node->mName.data, MAXLEN, "ACWorld_%i",worlds++); + break; + } + } + + + // setup the local transformation matrix of the object + // compute the transformation offset to the parent node + node->mTransformation = aiMatrix4x4 ( object.rotation ); + + if (object.type == Object::Group || !object.numRefs) + { + node->mTransformation.a4 = object.translation.x; + node->mTransformation.b4 = object.translation.y; + node->mTransformation.c4 = object.translation.z; + } + + // add children to the object + if (object.children.size()) + { + node->mNumChildren = (unsigned int)object.children.size(); + node->mChildren = new aiNode*[node->mNumChildren]; + for (unsigned int i = 0; i < node->mNumChildren;++i) + { + node->mChildren[i] = ConvertObjectSection(object.children[i],meshes,outMaterials,materials,node); + } + } + + return node; +} + +// ------------------------------------------------------------------------------------------------ +void AC3DImporter::SetupProperties(const Importer* pImp) +{ + configSplitBFCull = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_AC_SEPARATE_BFCULL,1) ? true : false; + configEvalSubdivision = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_AC_EVAL_SUBDIVISION,1) ? true : false; +} + +// ------------------------------------------------------------------------------------------------ +// Imports the given file into the given scene structure. +void AC3DImporter::InternReadFile( const std::string& pFile, + aiScene* pScene, IOSystem* pIOHandler) +{ + std::unique_ptr<IOStream> file( pIOHandler->Open( pFile, "rb")); + + // Check whether we can read from the file + if( file.get() == NULL) + throw DeadlyImportError( "Failed to open AC3D file " + pFile + "."); + + // allocate storage and copy the contents of the file to a memory buffer + std::vector<char> mBuffer2; + TextFileToBuffer(file.get(),mBuffer2); + + buffer = &mBuffer2[0]; + mNumMeshes = 0; + + lights = polys = worlds = groups = 0; + + if (::strncmp(buffer,"AC3D",4)) { + throw DeadlyImportError("AC3D: No valid AC3D file, magic sequence not found"); + } + + // print the file format version to the console + unsigned int version = HexDigitToDecimal( buffer[4] ); + char msg[3]; + ASSIMP_itoa10(msg,3,version); + DefaultLogger::get()->info(std::string("AC3D file format version: ") + msg); + + std::vector<Material> materials; + materials.reserve(5); + + std::vector<Object> rootObjects; + rootObjects.reserve(5); + + std::vector<aiLight*> lights; + mLights = & lights; + + while (GetNextLine()) + { + if (TokenMatch(buffer,"MATERIAL",8)) + { + materials.push_back(Material()); + Material& mat = materials.back(); + + // manually parse the material ... sscanf would use the buldin atof ... + // Format: (name) rgb %f %f %f amb %f %f %f emis %f %f %f spec %f %f %f shi %d trans %f + + AI_AC_SKIP_TO_NEXT_TOKEN(); + if ('\"' == *buffer) + { + AI_AC_GET_STRING(mat.name); + AI_AC_SKIP_TO_NEXT_TOKEN(); + } + + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("rgb",3,3,&mat.rgb); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("amb",3,3,&mat.amb); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("emis",4,3,&mat.emis); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("spec",4,3,&mat.spec); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("shi",3,1,&mat.shin); + AI_AC_CHECKED_LOAD_FLOAT_ARRAY("trans",5,1,&mat.trans); + } + LoadObjectSection(rootObjects); + } + + if (rootObjects.empty() || !mNumMeshes) + { + throw DeadlyImportError("AC3D: No meshes have been loaded"); + } + if (materials.empty()) + { + DefaultLogger::get()->warn("AC3D: No material has been found"); + materials.push_back(Material()); + } + + mNumMeshes += (mNumMeshes>>2u) + 1; + std::vector<aiMesh*> meshes; + meshes.reserve(mNumMeshes); + + std::vector<aiMaterial*> omaterials; + materials.reserve(mNumMeshes); + + // generate a dummy root if there are multiple objects on the top layer + Object* root; + if (1 == rootObjects.size()) + root = &rootObjects[0]; + else + { + root = new Object(); + } + + // now convert the imported stuff to our output data structure + pScene->mRootNode = ConvertObjectSection(*root,meshes,omaterials,materials); + if (1 != rootObjects.size())delete root; + + if (!::strncmp( pScene->mRootNode->mName.data, "Node", 4)) + pScene->mRootNode->mName.Set("<AC3DWorld>"); + + // copy meshes + if (meshes.empty()) + { + throw DeadlyImportError("An unknown error occurred during converting"); + } + pScene->mNumMeshes = (unsigned int)meshes.size(); + pScene->mMeshes = new aiMesh*[pScene->mNumMeshes]; + ::memcpy(pScene->mMeshes,&meshes[0],pScene->mNumMeshes*sizeof(void*)); + + // copy materials + pScene->mNumMaterials = (unsigned int)omaterials.size(); + pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials]; + ::memcpy(pScene->mMaterials,&omaterials[0],pScene->mNumMaterials*sizeof(void*)); + + // copy lights + pScene->mNumLights = (unsigned int)lights.size(); + if (lights.size()) + { + pScene->mLights = new aiLight*[lights.size()]; + ::memcpy(pScene->mLights,&lights[0],lights.size()*sizeof(void*)); + } +} + +#endif //!defined ASSIMP_BUILD_NO_AC_IMPORTER |