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Diffstat (limited to 'src/mesh/assimp-master/code/AssetLib/FBX/FBXImporter.cpp')
| -rw-r--r-- | src/mesh/assimp-master/code/AssetLib/FBX/FBXImporter.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/code/AssetLib/FBX/FBXImporter.cpp b/src/mesh/assimp-master/code/AssetLib/FBX/FBXImporter.cpp new file mode 100644 index 0000000..0f63acc --- /dev/null +++ b/src/mesh/assimp-master/code/AssetLib/FBX/FBXImporter.cpp @@ -0,0 +1,200 @@ +/* +Open Asset Import Library (assimp) +---------------------------------------------------------------------- + +Copyright (c) 2006-2022, 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. +r +* 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 FBXImporter.cpp + * @brief Implementation of the FBX importer. + */ + +#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER + +#include "FBXImporter.h" + +#include "FBXConverter.h" +#include "FBXDocument.h" +#include "FBXParser.h" +#include "FBXTokenizer.h" +#include "FBXUtil.h" + +#include <assimp/MemoryIOWrapper.h> +#include <assimp/StreamReader.h> +#include <assimp/importerdesc.h> +#include <assimp/Importer.hpp> + +namespace Assimp { + +template <> +const char *LogFunctions<FBXImporter>::Prefix() { + static auto prefix = "FBX: "; + return prefix; +} + +} // namespace Assimp + +using namespace Assimp; +using namespace Assimp::Formatter; +using namespace Assimp::FBX; + +namespace { + +static const aiImporterDesc desc = { + "Autodesk FBX Importer", + "", + "", + "", + aiImporterFlags_SupportTextFlavour, + 0, + 0, + 0, + 0, + "fbx" +}; +} + +// ------------------------------------------------------------------------------------------------ +// Constructor to be privately used by #Importer +FBXImporter::FBXImporter() { +} + +// ------------------------------------------------------------------------------------------------ +// Destructor, private as well +FBXImporter::~FBXImporter() { +} + +// ------------------------------------------------------------------------------------------------ +// Returns whether the class can handle the format of the given file. +bool FBXImporter::CanRead(const std::string & pFile, IOSystem * pIOHandler, bool /*checkSig*/) const { + // at least ASCII-FBX files usually have a 'FBX' somewhere in their head + static const char *tokens[] = { "fbx" }; + return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens)); +} + +// ------------------------------------------------------------------------------------------------ +// List all extensions handled by this loader +const aiImporterDesc *FBXImporter::GetInfo() const { + return &desc; +} + +// ------------------------------------------------------------------------------------------------ +// Setup configuration properties for the loader +void FBXImporter::SetupProperties(const Importer *pImp) { + settings.readAllLayers = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS, true); + settings.readAllMaterials = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_ALL_MATERIALS, false); + settings.readMaterials = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_MATERIALS, true); + settings.readTextures = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_TEXTURES, true); + settings.readCameras = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_CAMERAS, true); + settings.readLights = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_LIGHTS, true); + settings.readAnimations = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_ANIMATIONS, true); + settings.readWeights = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_READ_WEIGHTS, true); + settings.strictMode = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_STRICT_MODE, false); + settings.preservePivots = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS, true); + settings.optimizeEmptyAnimationCurves = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES, true); + settings.useLegacyEmbeddedTextureNaming = pImp->GetPropertyBool(AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING, false); + settings.removeEmptyBones = pImp->GetPropertyBool(AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES, true); + settings.convertToMeters = pImp->GetPropertyBool(AI_CONFIG_FBX_CONVERT_TO_M, false); +} + +// ------------------------------------------------------------------------------------------------ +// Imports the given file into the given scene structure. +void FBXImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSystem *pIOHandler) { + auto streamCloser = [&](IOStream *pStream) { + pIOHandler->Close(pStream); + }; + std::unique_ptr<IOStream, decltype(streamCloser)> stream(pIOHandler->Open(pFile, "rb"), streamCloser); + if (!stream) { + ThrowException("Could not open file for reading"); + } + + ASSIMP_LOG_DEBUG("Reading FBX file"); + + // read entire file into memory - no streaming for this, fbx + // files can grow large, but the assimp output data structure + // then becomes very large, too. Assimp doesn't support + // streaming for its output data structures so the net win with + // streaming input data would be very low. + std::vector<char> contents; + contents.resize(stream->FileSize() + 1); + stream->Read(&*contents.begin(), 1, contents.size() - 1); + contents[contents.size() - 1] = 0; + const char *const begin = &*contents.begin(); + + // broadphase tokenizing pass in which we identify the core + // syntax elements of FBX (brackets, commas, key:value mappings) + TokenList tokens; + try { + + bool is_binary = false; + if (!strncmp(begin, "Kaydara FBX Binary", 18)) { + is_binary = true; + TokenizeBinary(tokens, begin, contents.size()); + } else { + Tokenize(tokens, begin); + } + + // use this information to construct a very rudimentary + // parse-tree representing the FBX scope structure + Parser parser(tokens, is_binary); + + // take the raw parse-tree and convert it to a FBX DOM + Document doc(parser, settings); + + // convert the FBX DOM to aiScene + ConvertToAssimpScene(pScene, doc, settings.removeEmptyBones); + + // size relative to cm + float size_relative_to_cm = doc.GlobalSettings().UnitScaleFactor(); + if (size_relative_to_cm == 0.0) + { + // BaseImporter later asserts that fileScale is non-zero. + ThrowException("The UnitScaleFactor must be non-zero"); + } + + // Set FBX file scale is relative to CM must be converted to M for + // assimp universal format (M) + SetFileScale(size_relative_to_cm * 0.01f); + + std::for_each(tokens.begin(), tokens.end(), Util::delete_fun<Token>()); + } catch (std::exception &) { + std::for_each(tokens.begin(), tokens.end(), Util::delete_fun<Token>()); + throw; + } +} + +#endif // !ASSIMP_BUILD_NO_FBX_IMPORTER |