diff options
Diffstat (limited to 'src/3rdparty/assimp/code/BaseImporter.h')
| -rw-r--r-- | src/3rdparty/assimp/code/BaseImporter.h | 586 |
1 files changed, 309 insertions, 277 deletions
diff --git a/src/3rdparty/assimp/code/BaseImporter.h b/src/3rdparty/assimp/code/BaseImporter.h index 491c9cea1..5c9ddfa5e 100644 --- a/src/3rdparty/assimp/code/BaseImporter.h +++ b/src/3rdparty/assimp/code/BaseImporter.h @@ -2,11 +2,11 @@ Open Asset Import Library (assimp) ---------------------------------------------------------------------- -Copyright (c) 2006-2012, assimp team +Copyright (c) 2006-2016, 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 +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 @@ -23,16 +23,16 @@ following conditions are met: 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 +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 +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 +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 +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. ---------------------------------------------------------------------- @@ -47,318 +47,350 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include <string> #include <map> #include <vector> -#include "./../include/assimp/types.h" +#include <set> +#include <assimp/types.h> +#include <assimp/ProgressHandler.hpp> struct aiScene; -namespace Assimp { +namespace Assimp { -class IOSystem; class Importer; -class BaseImporter; +class IOSystem; class BaseProcess; class SharedPostProcessInfo; class IOStream; + // utility to do char4 to uint32 in a portable manner #define AI_MAKE_MAGIC(string) ((uint32_t)((string[0] << 24) + \ - (string[1] << 16) + (string[2] << 8) + string[3])) + (string[1] << 16) + (string[2] << 8) + string[3])) // --------------------------------------------------------------------------- template <typename T> struct ScopeGuard { - ScopeGuard(T* obj) : obj(obj), mdismiss() {} - ~ScopeGuard () throw() { - if (!mdismiss) { - delete obj; - } - obj = NULL; - } - - T* dismiss() { - mdismiss=true; - return obj; - } - - operator T*() { - return obj; - } - - T* operator -> () { - return obj; - } + explicit ScopeGuard(T* obj) : obj(obj), mdismiss() {} + ~ScopeGuard () throw() { + if (!mdismiss) { + delete obj; + } + obj = NULL; + } + + T* dismiss() { + mdismiss=true; + return obj; + } + + operator T*() { + return obj; + } + + T* operator -> () { + return obj; + } private: - T* obj; - bool mdismiss; + // no copying allowed. + ScopeGuard(); + ScopeGuard( const ScopeGuard & ); + ScopeGuard &operator = ( const ScopeGuard & ); + + T* obj; + bool mdismiss; }; // --------------------------------------------------------------------------- -/** FOR IMPORTER PLUGINS ONLY: The BaseImporter defines a common interface +/** FOR IMPORTER PLUGINS ONLY: The BaseImporter defines a common interface * for all importer worker classes. * - * The interface defines two functions: CanRead() is used to check if the - * importer can handle the format of the given file. If an implementation of - * this function returns true, the importer then calls ReadFile() which - * imports the given file. ReadFile is not overridable, it just calls + * The interface defines two functions: CanRead() is used to check if the + * importer can handle the format of the given file. If an implementation of + * this function returns true, the importer then calls ReadFile() which + * imports the given file. ReadFile is not overridable, it just calls * InternReadFile() and catches any ImportErrorException that might occur. */ class ASSIMP_API BaseImporter { - friend class Importer; + friend class Importer; public: - /** Constructor to be privately used by #Importer */ - BaseImporter(); + /** Constructor to be privately used by #Importer */ + BaseImporter(); - /** Destructor, private as well */ - virtual ~BaseImporter(); + /** Destructor, private as well */ + virtual ~BaseImporter(); public: - // ------------------------------------------------------------------- - /** Returns whether the class can handle the format of the given file. - * - * The implementation should be as quick as possible. A check for - * the file extension is enough. If no suitable loader is found with - * this strategy, CanRead() is called again, the 'checkSig' parameter - * set to true this time. Now the implementation is expected to - * perform a full check of the file structure, possibly searching the - * first bytes of the file for magic identifiers or keywords. - * - * @param pFile Path and file name of the file to be examined. - * @param pIOHandler The IO handler to use for accessing any file. - * @param checkSig Set to true if this method is called a second time. - * This time, the implementation may take more time to examine the - * contents of the file to be loaded for magic bytes, keywords, etc - * to be able to load files with unknown/not existent file extensions. - * @return true if the class can read this file, false if not. - */ - virtual bool CanRead( - const std::string& pFile, - IOSystem* pIOHandler, - bool checkSig - ) const = 0; - - // ------------------------------------------------------------------- - /** Imports the given file and returns the imported data. - * If the import succeeds, ownership of the data is transferred to - * the caller. If the import fails, NULL is returned. The function - * takes care that any partially constructed data is destroyed - * beforehand. - * - * @param pImp #Importer object hosting this loader. - * @param pFile Path of the file to be imported. - * @param pIOHandler IO-Handler used to open this and possible other files. - * @return The imported data or NULL if failed. If it failed a - * human-readable error description can be retrieved by calling - * GetErrorText() - * - * @note This function is not intended to be overridden. Implement - * InternReadFile() to do the import. If an exception is thrown somewhere - * in InternReadFile(), this function will catch it and transform it into - * a suitable response to the caller. - */ - aiScene* ReadFile( - const Importer* pImp, - const std::string& pFile, - IOSystem* pIOHandler - ); - - // ------------------------------------------------------------------- - /** Returns the error description of the last error that occured. - * @return A description of the last error that occured. An empty - * string if there was no error. - */ - const std::string& GetErrorText() const { - return mErrorText; - } - - // ------------------------------------------------------------------- - /** Called prior to ReadFile(). - * The function is a request to the importer to update its configuration - * basing on the Importer's configuration property list. - * @param pImp Importer instance - */ - virtual void SetupProperties( - const Importer* pImp - ); - - - // ------------------------------------------------------------------- - /** Called by #Importer::GetImporterInfo to get a description of - * some loader features. Importers must provide this information. */ - virtual const aiImporterDesc* GetInfo() const = 0; - - - - // ------------------------------------------------------------------- - /** Called by #Importer::GetExtensionList for each loaded importer. - * Take the extension list contained in the structure returned by - * #GetInfo and insert all file extensions into the given set. - * @param extension set to collect file extensions in*/ - void GetExtensionList(std::set<std::string>& extensions); + // ------------------------------------------------------------------- + /** Returns whether the class can handle the format of the given file. + * + * The implementation should be as quick as possible. A check for + * the file extension is enough. If no suitable loader is found with + * this strategy, CanRead() is called again, the 'checkSig' parameter + * set to true this time. Now the implementation is expected to + * perform a full check of the file structure, possibly searching the + * first bytes of the file for magic identifiers or keywords. + * + * @param pFile Path and file name of the file to be examined. + * @param pIOHandler The IO handler to use for accessing any file. + * @param checkSig Set to true if this method is called a second time. + * This time, the implementation may take more time to examine the + * contents of the file to be loaded for magic bytes, keywords, etc + * to be able to load files with unknown/not existent file extensions. + * @return true if the class can read this file, false if not. + */ + virtual bool CanRead( + const std::string& pFile, + IOSystem* pIOHandler, + bool checkSig + ) const = 0; + + // ------------------------------------------------------------------- + /** Imports the given file and returns the imported data. + * If the import succeeds, ownership of the data is transferred to + * the caller. If the import fails, NULL is returned. The function + * takes care that any partially constructed data is destroyed + * beforehand. + * + * @param pImp #Importer object hosting this loader. + * @param pFile Path of the file to be imported. + * @param pIOHandler IO-Handler used to open this and possible other files. + * @return The imported data or NULL if failed. If it failed a + * human-readable error description can be retrieved by calling + * GetErrorText() + * + * @note This function is not intended to be overridden. Implement + * InternReadFile() to do the import. If an exception is thrown somewhere + * in InternReadFile(), this function will catch it and transform it into + * a suitable response to the caller. + */ + aiScene* ReadFile( + const Importer* pImp, + const std::string& pFile, + IOSystem* pIOHandler + ); + + // ------------------------------------------------------------------- + /** Returns the error description of the last error that occurred. + * @return A description of the last error that occurred. An empty + * string if there was no error. + */ + const std::string& GetErrorText() const { + return m_ErrorText; + } + + // ------------------------------------------------------------------- + /** Called prior to ReadFile(). + * The function is a request to the importer to update its configuration + * basing on the Importer's configuration property list. + * @param pImp Importer instance + */ + virtual void SetupProperties( + const Importer* pImp + ); + + + // ------------------------------------------------------------------- + /** Called by #Importer::GetImporterInfo to get a description of + * some loader features. Importers must provide this information. */ + virtual const aiImporterDesc* GetInfo() const = 0; + + + + // ------------------------------------------------------------------- + /** Called by #Importer::GetExtensionList for each loaded importer. + * Take the extension list contained in the structure returned by + * #GetInfo and insert all file extensions into the given set. + * @param extension set to collect file extensions in*/ + void GetExtensionList(std::set<std::string>& extensions); protected: - // ------------------------------------------------------------------- - /** Imports the given file into the given scene structure. The - * function is expected to throw an ImportErrorException if there is - * an error. If it terminates normally, the data in aiScene is - * expected to be correct. Override this function to implement the - * actual importing. - * <br> - * The output scene must meet the following requirements:<br> - * <ul> - * <li>At least a root node must be there, even if its only purpose - * is to reference one mesh.</li> - * <li>aiMesh::mPrimitiveTypes may be 0. The types of primitives - * in the mesh are determined automatically in this case.</li> - * <li>the vertex data is stored in a pseudo-indexed "verbose" format. - * In fact this means that every vertex that is referenced by - * a face is unique. Or the other way round: a vertex index may - * not occur twice in a single aiMesh.</li> - * <li>aiAnimation::mDuration may be -1. Assimp determines the length - * of the animation automatically in this case as the length of - * the longest animation channel.</li> - * <li>aiMesh::mBitangents may be NULL if tangents and normals are - * given. In this case bitangents are computed as the cross product - * between normal and tangent.</li> - * <li>There needn't be a material. If none is there a default material - * is generated. However, it is recommended practice for loaders - * to generate a default material for yourself that matches the - * default material setting for the file format better than Assimp's - * generic default material. Note that default materials *should* - * be named AI_DEFAULT_MATERIAL_NAME if they're just color-shaded - * or AI_DEFAULT_TEXTURED_MATERIAL_NAME if they define a (dummy) - * texture. </li> - * </ul> - * If the AI_SCENE_FLAGS_INCOMPLETE-Flag is <b>not</b> set:<ul> - * <li> at least one mesh must be there</li> - * <li> there may be no meshes with 0 vertices or faces</li> - * </ul> - * This won't be checked (except by the validation step): Assimp will - * crash if one of the conditions is not met! - * - * @param pFile Path of the file to be imported. - * @param pScene The scene object to hold the imported data. - * NULL is not a valid parameter. - * @param pIOHandler The IO handler to use for any file access. - * NULL is not a valid parameter. */ - virtual void InternReadFile( - const std::string& pFile, - aiScene* pScene, - IOSystem* pIOHandler - ) = 0; + // ------------------------------------------------------------------- + /** Imports the given file into the given scene structure. The + * function is expected to throw an ImportErrorException if there is + * an error. If it terminates normally, the data in aiScene is + * expected to be correct. Override this function to implement the + * actual importing. + * <br> + * The output scene must meet the following requirements:<br> + * <ul> + * <li>At least a root node must be there, even if its only purpose + * is to reference one mesh.</li> + * <li>aiMesh::mPrimitiveTypes may be 0. The types of primitives + * in the mesh are determined automatically in this case.</li> + * <li>the vertex data is stored in a pseudo-indexed "verbose" format. + * In fact this means that every vertex that is referenced by + * a face is unique. Or the other way round: a vertex index may + * not occur twice in a single aiMesh.</li> + * <li>aiAnimation::mDuration may be -1. Assimp determines the length + * of the animation automatically in this case as the length of + * the longest animation channel.</li> + * <li>aiMesh::mBitangents may be NULL if tangents and normals are + * given. In this case bitangents are computed as the cross product + * between normal and tangent.</li> + * <li>There needn't be a material. If none is there a default material + * is generated. However, it is recommended practice for loaders + * to generate a default material for yourself that matches the + * default material setting for the file format better than Assimp's + * generic default material. Note that default materials *should* + * be named AI_DEFAULT_MATERIAL_NAME if they're just color-shaded + * or AI_DEFAULT_TEXTURED_MATERIAL_NAME if they define a (dummy) + * texture. </li> + * </ul> + * If the AI_SCENE_FLAGS_INCOMPLETE-Flag is <b>not</b> set:<ul> + * <li> at least one mesh must be there</li> + * <li> there may be no meshes with 0 vertices or faces</li> + * </ul> + * This won't be checked (except by the validation step): Assimp will + * crash if one of the conditions is not met! + * + * @param pFile Path of the file to be imported. + * @param pScene The scene object to hold the imported data. + * NULL is not a valid parameter. + * @param pIOHandler The IO handler to use for any file access. + * NULL is not a valid parameter. */ + virtual void InternReadFile( + const std::string& pFile, + aiScene* pScene, + IOSystem* pIOHandler + ) = 0; public: // static utilities - // ------------------------------------------------------------------- - /** A utility for CanRead(). - * - * The function searches the header of a file for a specific token - * and returns true if this token is found. This works for text - * files only. There is a rudimentary handling of UNICODE files. - * The comparison is case independent. - * - * @param pIOSystem IO System to work with - * @param file File name of the file - * @param tokens List of tokens to search for - * @param numTokens Size of the token array - * @param searchBytes Number of bytes to be searched for the tokens. - */ - static bool SearchFileHeaderForToken( - IOSystem* pIOSystem, - const std::string& file, - const char** tokens, - unsigned int numTokens, - unsigned int searchBytes = 200, - bool tokensSol = false); - - // ------------------------------------------------------------------- - /** @brief Check whether a file has a specific file extension - * @param pFile Input file - * @param ext0 Extension to check for. Lowercase characters only, no dot! - * @param ext1 Optional second extension - * @param ext2 Optional third extension - * @note Case-insensitive - */ - static bool SimpleExtensionCheck ( - const std::string& pFile, - const char* ext0, - const char* ext1 = NULL, - const char* ext2 = NULL); - - // ------------------------------------------------------------------- - /** @brief Extract file extension from a string - * @param pFile Input file - * @return Extension without trailing dot, all lowercase - */ - static std::string GetExtension ( - const std::string& pFile); - - // ------------------------------------------------------------------- - /** @brief Check whether a file starts with one or more magic tokens - * @param pFile Input file - * @param pIOHandler IO system to be used - * @param magic n magic tokens - * @params num Size of magic - * @param offset Offset from file start where tokens are located - * @param Size of one token, in bytes. Maximally 16 bytes. - * @return true if one of the given tokens was found - * - * @note For convinence, the check is also performed for the - * byte-swapped variant of all tokens (big endian). Only for - * tokens of size 2,4. - */ - static bool CheckMagicToken( - IOSystem* pIOHandler, - const std::string& pFile, - const void* magic, - unsigned int num, - unsigned int offset = 0, - unsigned int size = 4); - - // ------------------------------------------------------------------- - /** An utility for all text file loaders. It converts a file to our - * UTF8 character set. Errors are reported, but ignored. - * - * @param data File buffer to be converted to UTF8 data. The buffer - * is resized as appropriate. */ - static void ConvertToUTF8( - std::vector<char>& data); - - // ------------------------------------------------------------------- - /** An utility for all text file loaders. It converts a file from our - * UTF8 character set back to ISO-8859-1. Errors are reported, but ignored. - * - * @param data File buffer to be converted from UTF8 to ISO-8859-1. The buffer - * is resized as appropriate. */ - static void ConvertUTF8toISO8859_1( - std::string& data); - - // ------------------------------------------------------------------- - /** Utility for text file loaders which copies the contents of the - * file into a memory buffer and converts it to our UTF8 - * representation. - * @param stream Stream to read from. - * @param data Output buffer to be resized and filled with the - * converted text file data. The buffer is terminated with - * a binary 0. */ - static void TextFileToBuffer( - IOStream* stream, - std::vector<char>& data); + // ------------------------------------------------------------------- + /** A utility for CanRead(). + * + * The function searches the header of a file for a specific token + * and returns true if this token is found. This works for text + * files only. There is a rudimentary handling of UNICODE files. + * The comparison is case independent. + * + * @param pIOSystem IO System to work with + * @param file File name of the file + * @param tokens List of tokens to search for + * @param numTokens Size of the token array + * @param searchBytes Number of bytes to be searched for the tokens. + */ + static bool SearchFileHeaderForToken( + IOSystem* pIOSystem, + const std::string& file, + const char** tokens, + unsigned int numTokens, + unsigned int searchBytes = 200, + bool tokensSol = false); + + // ------------------------------------------------------------------- + /** @brief Check whether a file has a specific file extension + * @param pFile Input file + * @param ext0 Extension to check for. Lowercase characters only, no dot! + * @param ext1 Optional second extension + * @param ext2 Optional third extension + * @note Case-insensitive + */ + static bool SimpleExtensionCheck ( + const std::string& pFile, + const char* ext0, + const char* ext1 = NULL, + const char* ext2 = NULL); + + // ------------------------------------------------------------------- + /** @brief Extract file extension from a string + * @param pFile Input file + * @return Extension without trailing dot, all lowercase + */ + static std::string GetExtension ( + const std::string& pFile); + + // ------------------------------------------------------------------- + /** @brief Check whether a file starts with one or more magic tokens + * @param pFile Input file + * @param pIOHandler IO system to be used + * @param magic n magic tokens + * @params num Size of magic + * @param offset Offset from file start where tokens are located + * @param Size of one token, in bytes. Maximally 16 bytes. + * @return true if one of the given tokens was found + * + * @note For convinence, the check is also performed for the + * byte-swapped variant of all tokens (big endian). Only for + * tokens of size 2,4. + */ + static bool CheckMagicToken( + IOSystem* pIOHandler, + const std::string& pFile, + const void* magic, + unsigned int num, + unsigned int offset = 0, + unsigned int size = 4); + + // ------------------------------------------------------------------- + /** An utility for all text file loaders. It converts a file to our + * UTF8 character set. Errors are reported, but ignored. + * + * @param data File buffer to be converted to UTF8 data. The buffer + * is resized as appropriate. */ + static void ConvertToUTF8( + std::vector<char>& data); + + // ------------------------------------------------------------------- + /** An utility for all text file loaders. It converts a file from our + * UTF8 character set back to ISO-8859-1. Errors are reported, but ignored. + * + * @param data File buffer to be converted from UTF8 to ISO-8859-1. The buffer + * is resized as appropriate. */ + static void ConvertUTF8toISO8859_1( + std::string& data); + + enum TextFileMode { ALLOW_EMPTY, FORBID_EMPTY }; + + // ------------------------------------------------------------------- + /** Utility for text file loaders which copies the contents of the + * file into a memory buffer and converts it to our UTF8 + * representation. + * @param stream Stream to read from. + * @param data Output buffer to be resized and filled with the + * converted text file data. The buffer is terminated with + * a binary 0. + * @param mode Whether it is OK to load empty text files. */ + static void TextFileToBuffer( + IOStream* stream, + std::vector<char>& data, + TextFileMode mode = FORBID_EMPTY); + + // ------------------------------------------------------------------- + /** Utility function to move a std::vector into a aiScene array + * @param vec The vector to be moved + * @param out The output pointer to the allocated array. + * @param numOut The output count of elements copied. */ + template<typename T> + AI_FORCE_INLINE + static void CopyVector( + std::vector<T>& vec, + T*& out, + unsigned int& outLength) + { + outLength = unsigned(vec.size()); + if (outLength) { + out = new T[outLength]; + std::swap_ranges(vec.begin(), vec.end(), out); + } + } + + protected: - /** Error description in case there was one. */ - std::string mErrorText; + /** Error description in case there was one. */ + std::string m_ErrorText; - /** Currently set progress handler */ - ProgressHandler* progress; + /** Currently set progress handler */ + ProgressHandler* m_progress; }; |