qt-everywhere-src-5.15.1/qt3d/src/3rdparty/assimp/code/Q3BSPZipArchive.cpp - orbit - Git at Google

 /*
 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.

 ----------------------------------------------------------------------
 */

 #ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER

 #include "Q3BSPZipArchive.h"
 #include <cassert>
 #include <assimp/ai_assert.h>

 namespace Assimp {
 namespace Q3BSP {

 voidpf IOSystem2Unzip::open(voidpf opaque, const char* filename, int mode) {
     IOSystem* io_system = (IOSystem*) opaque;

     const char* mode_fopen = NULL;
     if((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) {
         mode_fopen = "rb";
     } else {
         if(mode & ZLIB_FILEFUNC_MODE_EXISTING) {
             mode_fopen = "r+b";
         } else {
             if(mode & ZLIB_FILEFUNC_MODE_CREATE) {
                 mode_fopen = "wb";
             }
         }
     }

     return (voidpf) io_system->Open(filename, mode_fopen);
 }

 uLong IOSystem2Unzip::read(voidpf /*opaque*/, voidpf stream, void* buf, uLong size) {
     IOStream* io_stream = (IOStream*) stream;

     return static_cast<uLong>(io_stream->Read(buf, 1, size));
 }

 uLong IOSystem2Unzip::write(voidpf /*opaque*/, voidpf stream, const void* buf, uLong size) {
     IOStream* io_stream = (IOStream*) stream;

     return static_cast<uLong>(io_stream->Write(buf, 1, size));
 }

 long IOSystem2Unzip::tell(voidpf /*opaque*/, voidpf stream) {
     IOStream* io_stream = (IOStream*) stream;

     return static_cast<long>(io_stream->Tell());
 }

 long IOSystem2Unzip::seek(voidpf /*opaque*/, voidpf stream, uLong offset, int origin) {
     IOStream* io_stream = (IOStream*) stream;

     aiOrigin assimp_origin;
     switch (origin) {
         default:
         case ZLIB_FILEFUNC_SEEK_CUR:
             assimp_origin = aiOrigin_CUR;
             break;
         case ZLIB_FILEFUNC_SEEK_END:
             assimp_origin = aiOrigin_END;
             break;
         case ZLIB_FILEFUNC_SEEK_SET:
             assimp_origin = aiOrigin_SET;
             break;
     }

     return (io_stream->Seek(offset, assimp_origin) == aiReturn_SUCCESS ? 0 : -1);
 }

 int IOSystem2Unzip::close(voidpf opaque, voidpf stream) {
     IOSystem* io_system = (IOSystem*) opaque;
     IOStream* io_stream = (IOStream*) stream;

     io_system->Close(io_stream);

     return 0;
 }

 int IOSystem2Unzip::testerror(voidpf /*opaque*/, voidpf /*stream*/) {
     return 0;
 }

 zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
     zlib_filefunc_def mapping;

     mapping.zopen_file = open;
     mapping.zread_file = read;
     mapping.zwrite_file = write;
     mapping.ztell_file = tell;
     mapping.zseek_file = seek;
     mapping.zclose_file = close;
     mapping.zerror_file = testerror;
     mapping.opaque = (voidpf) pIOHandler;

     return mapping;
 }

 ZipFile::ZipFile(size_t size) : m_Size(size) {
     ai_assert(m_Size != 0);

     m_Buffer = malloc(m_Size);
 }

 ZipFile::~ZipFile() {
     free(m_Buffer);
     m_Buffer = NULL;
 }

 size_t ZipFile::Read(void* pvBuffer, size_t pSize, size_t pCount) {
     const size_t size = pSize * pCount;
     assert(size <= m_Size);

     std::memcpy(pvBuffer, m_Buffer, size);

     return size;
 }

 size_t ZipFile::Write(const void* /*pvBuffer*/, size_t /*pSize*/, size_t /*pCount*/) {
     return 0;
 }

 size_t ZipFile::FileSize() const {
     return m_Size;
 }

 aiReturn ZipFile::Seek(size_t /*pOffset*/, aiOrigin /*pOrigin*/) {
     return aiReturn_FAILURE;
 }

 size_t ZipFile::Tell() const {
     return 0;
 }

 void ZipFile::Flush() {
     // empty
 }

 // ------------------------------------------------------------------------------------------------
 //  Constructor.
 Q3BSPZipArchive::Q3BSPZipArchive(IOSystem* pIOHandler, const std::string& rFile) : m_ZipFileHandle(NULL), m_ArchiveMap() {
     if (! rFile.empty()) {
         zlib_filefunc_def mapping = IOSystem2Unzip::get(pIOHandler);

         m_ZipFileHandle = unzOpen2(rFile.c_str(), &mapping);

         if(m_ZipFileHandle != NULL) {
             mapArchive();
         }
     }
 }

 // ------------------------------------------------------------------------------------------------
 //  Destructor.
 Q3BSPZipArchive::~Q3BSPZipArchive() {
     for(auto &file : m_ArchiveMap) {
         delete file.second;
     }
     m_ArchiveMap.clear();

     if(m_ZipFileHandle != NULL) {
         unzClose(m_ZipFileHandle);
         m_ZipFileHandle = NULL;
     }
 }

 // ------------------------------------------------------------------------------------------------
 //  Returns true, if the archive is already open.
 bool Q3BSPZipArchive::isOpen() const {
     return (m_ZipFileHandle != NULL);
 }

 // ------------------------------------------------------------------------------------------------
 //  Returns true, if the filename is part of the archive.
 bool Q3BSPZipArchive::Exists(const char* pFile) const {
     ai_assert(pFile != NULL);

     bool exist = false;

     if (pFile != NULL) {
         std::string rFile(pFile);
         std::map<std::string, ZipFile*>::const_iterator it = m_ArchiveMap.find(rFile);

         if(it != m_ArchiveMap.end()) {
             exist = true;
         }
     }

     return exist;
 }

 // ------------------------------------------------------------------------------------------------
 //  Returns the separator delimiter.
 char Q3BSPZipArchive::getOsSeparator() const {
 #ifndef _WIN32
     return '/';
 #else
     return '\\';
 #endif
 }

 // ------------------------------------------------------------------------------------------------
 //  Opens a file, which is part of the archive.
 IOStream *Q3BSPZipArchive::Open(const char* pFile, const char* /*pMode*/) {
     ai_assert(pFile != NULL);

     IOStream* result = NULL;

     std::map<std::string, ZipFile*>::iterator it = m_ArchiveMap.find(pFile);

     if(it != m_ArchiveMap.end()) {
         result = (IOStream*) it->second;
     }

     return result;
 }

 // ------------------------------------------------------------------------------------------------
 //  Close a filestream.
 void Q3BSPZipArchive::Close(IOStream *pFile) {
     (void)(pFile);
     ai_assert(pFile != NULL);

     // We don't do anything in case the file would be opened again in the future
 }
 // ------------------------------------------------------------------------------------------------
 //  Returns the file-list of the archive.
 void Q3BSPZipArchive::getFileList(std::vector<std::string> &rFileList) {
     rFileList.clear();

     for(auto &file : m_ArchiveMap) {
         rFileList.push_back(file.first);
     }
 }

 // ------------------------------------------------------------------------------------------------
 //  Maps the archive content.
 bool Q3BSPZipArchive::mapArchive() {
     bool success = false;

     if(m_ZipFileHandle != NULL) {
         if(m_ArchiveMap.empty()) {
             //  At first ensure file is already open
             if(unzGoToFirstFile(m_ZipFileHandle) == UNZ_OK) {
                 // Loop over all files
                 do {
                     char filename[FileNameSize];
                     unz_file_info fileInfo;

                     if(unzGetCurrentFileInfo(m_ZipFileHandle, &fileInfo, filename, FileNameSize, NULL, 0, NULL, 0) == UNZ_OK) {
                         // The file has EXACTLY the size of uncompressed_size. In C
                         // you need to mark the last character with '\0', so add
                         // another character
                         if(fileInfo.uncompressed_size != 0 && unzOpenCurrentFile(m_ZipFileHandle) == UNZ_OK) {
                             std::pair<std::map<std::string, ZipFile*>::iterator, bool> result = m_ArchiveMap.insert(std::make_pair(filename, new ZipFile(fileInfo.uncompressed_size)));

                             if(unzReadCurrentFile(m_ZipFileHandle, result.first->second->m_Buffer, fileInfo.uncompressed_size) == (long int) fileInfo.uncompressed_size) {
                                 if(unzCloseCurrentFile(m_ZipFileHandle) == UNZ_OK) {
                                     // Nothing to do anymore...
                                 }
                             }
                         }
                     }
                 } while(unzGoToNextFile(m_ZipFileHandle) != UNZ_END_OF_LIST_OF_FILE);
             }
         }

         success = true;
     }

     return success;
 }

 // ------------------------------------------------------------------------------------------------

 } // Namespace Q3BSP
 } // Namespace Assimp

 #endif // ASSIMP_BUILD_NO_Q3BSP_IMPORTER
	/*
	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.

	----------------------------------------------------------------------
	*/

	#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER

	#include "Q3BSPZipArchive.h"
	#include <cassert>
	#include <assimp/ai_assert.h>

	namespace Assimp {
	namespace Q3BSP {

	voidpf IOSystem2Unzip::open(voidpf opaque, const char* filename, int mode) {
	IOSystem* io_system = (IOSystem*) opaque;

	const char* mode_fopen = NULL;
	if((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) {
	mode_fopen = "rb";
	} else {
	if(mode & ZLIB_FILEFUNC_MODE_EXISTING) {
	mode_fopen = "r+b";
	} else {
	if(mode & ZLIB_FILEFUNC_MODE_CREATE) {
	mode_fopen = "wb";
	}
	}
	}

	return (voidpf) io_system->Open(filename, mode_fopen);
	}

	uLong IOSystem2Unzip::read(voidpf /opaque/, voidpf stream, void* buf, uLong size) {
	IOStream* io_stream = (IOStream*) stream;

	return static_cast<uLong>(io_stream->Read(buf, 1, size));
	}

	uLong IOSystem2Unzip::write(voidpf /opaque/, voidpf stream, const void* buf, uLong size) {
	IOStream* io_stream = (IOStream*) stream;

	return static_cast<uLong>(io_stream->Write(buf, 1, size));
	}

	long IOSystem2Unzip::tell(voidpf /opaque/, voidpf stream) {
	IOStream* io_stream = (IOStream*) stream;

	return static_cast<long>(io_stream->Tell());
	}

	long IOSystem2Unzip::seek(voidpf /opaque/, voidpf stream, uLong offset, int origin) {
	IOStream* io_stream = (IOStream*) stream;

	aiOrigin assimp_origin;
	switch (origin) {
	default:
	case ZLIB_FILEFUNC_SEEK_CUR:
	assimp_origin = aiOrigin_CUR;
	break;
	case ZLIB_FILEFUNC_SEEK_END:
	assimp_origin = aiOrigin_END;
	break;
	case ZLIB_FILEFUNC_SEEK_SET:
	assimp_origin = aiOrigin_SET;
	break;
	}

	return (io_stream->Seek(offset, assimp_origin) == aiReturn_SUCCESS ? 0 : -1);
	}

	int IOSystem2Unzip::close(voidpf opaque, voidpf stream) {
	IOSystem* io_system = (IOSystem*) opaque;
	IOStream* io_stream = (IOStream*) stream;

	io_system->Close(io_stream);

	return 0;
	}

	int IOSystem2Unzip::testerror(voidpf /opaque/, voidpf /stream/) {
	return 0;
	}

	zlib_filefunc_def IOSystem2Unzip::get(IOSystem* pIOHandler) {
	zlib_filefunc_def mapping;

	mapping.zopen_file = open;
	mapping.zread_file = read;
	mapping.zwrite_file = write;
	mapping.ztell_file = tell;
	mapping.zseek_file = seek;
	mapping.zclose_file = close;
	mapping.zerror_file = testerror;
	mapping.opaque = (voidpf) pIOHandler;

	return mapping;
	}

	ZipFile::ZipFile(size_t size) : m_Size(size) {
	ai_assert(m_Size != 0);

	m_Buffer = malloc(m_Size);
	}

	ZipFile::~ZipFile() {
	free(m_Buffer);
	m_Buffer = NULL;
	}

	size_t ZipFile::Read(void* pvBuffer, size_t pSize, size_t pCount) {
	const size_t size = pSize * pCount;
	assert(size <= m_Size);

	std::memcpy(pvBuffer, m_Buffer, size);

	return size;
	}

	size_t ZipFile::Write(const void* /pvBuffer/, size_t /pSize/, size_t /pCount/) {
	return 0;
	}

	size_t ZipFile::FileSize() const {
	return m_Size;
	}

	aiReturn ZipFile::Seek(size_t /pOffset/, aiOrigin /pOrigin/) {
	return aiReturn_FAILURE;
	}

	size_t ZipFile::Tell() const {
	return 0;
	}

	void ZipFile::Flush() {
	// empty
	}

	// ------------------------------------------------------------------------------------------------
	// Constructor.
	Q3BSPZipArchive::Q3BSPZipArchive(IOSystem* pIOHandler, const std::string& rFile) : m_ZipFileHandle(NULL), m_ArchiveMap() {
	if (! rFile.empty()) {
	zlib_filefunc_def mapping = IOSystem2Unzip::get(pIOHandler);

	m_ZipFileHandle = unzOpen2(rFile.c_str(), &mapping);

	if(m_ZipFileHandle != NULL) {
	mapArchive();
	}
	}
	}

	// ------------------------------------------------------------------------------------------------
	// Destructor.
	Q3BSPZipArchive::~Q3BSPZipArchive() {
	for(auto &file : m_ArchiveMap) {
	delete file.second;
	}
	m_ArchiveMap.clear();

	if(m_ZipFileHandle != NULL) {
	unzClose(m_ZipFileHandle);
	m_ZipFileHandle = NULL;
	}
	}

	// ------------------------------------------------------------------------------------------------
	// Returns true, if the archive is already open.
	bool Q3BSPZipArchive::isOpen() const {
	return (m_ZipFileHandle != NULL);
	}

	// ------------------------------------------------------------------------------------------------
	// Returns true, if the filename is part of the archive.
	bool Q3BSPZipArchive::Exists(const char* pFile) const {
	ai_assert(pFile != NULL);

	bool exist = false;

	if (pFile != NULL) {
	std::string rFile(pFile);
	std::map<std::string, ZipFile*>::const_iterator it = m_ArchiveMap.find(rFile);

	if(it != m_ArchiveMap.end()) {
	exist = true;
	}
	}

	return exist;
	}

	// ------------------------------------------------------------------------------------------------
	// Returns the separator delimiter.
	char Q3BSPZipArchive::getOsSeparator() const {
	#ifndef _WIN32
	return '/';
	#else
	return '\\';
	#endif
	}

	// ------------------------------------------------------------------------------------------------
	// Opens a file, which is part of the archive.
	IOStream Q3BSPZipArchive::Open(const char pFile, const char* /pMode/) {
	ai_assert(pFile != NULL);

	IOStream* result = NULL;

	std::map<std::string, ZipFile*>::iterator it = m_ArchiveMap.find(pFile);

	if(it != m_ArchiveMap.end()) {
	result = (IOStream*) it->second;
	}

	return result;
	}

	// ------------------------------------------------------------------------------------------------
	// Close a filestream.
	void Q3BSPZipArchive::Close(IOStream *pFile) {
	(void)(pFile);
	ai_assert(pFile != NULL);

	// We don't do anything in case the file would be opened again in the future
	}
	// ------------------------------------------------------------------------------------------------
	// Returns the file-list of the archive.
	void Q3BSPZipArchive::getFileList(std::vector<std::string> &rFileList) {
	rFileList.clear();

	for(auto &file : m_ArchiveMap) {
	rFileList.push_back(file.first);
	}
	}

	// ------------------------------------------------------------------------------------------------
	// Maps the archive content.
	bool Q3BSPZipArchive::mapArchive() {
	bool success = false;

	if(m_ZipFileHandle != NULL) {
	if(m_ArchiveMap.empty()) {
	// At first ensure file is already open
	if(unzGoToFirstFile(m_ZipFileHandle) == UNZ_OK) {
	// Loop over all files
	do {
	char filename[FileNameSize];
	unz_file_info fileInfo;

	if(unzGetCurrentFileInfo(m_ZipFileHandle, &fileInfo, filename, FileNameSize, NULL, 0, NULL, 0) == UNZ_OK) {
	// The file has EXACTLY the size of uncompressed_size. In C
	// you need to mark the last character with '\0', so add
	// another character
	if(fileInfo.uncompressed_size != 0 && unzOpenCurrentFile(m_ZipFileHandle) == UNZ_OK) {
	std::pair<std::map<std::string, ZipFile*>::iterator, bool> result = m_ArchiveMap.insert(std::make_pair(filename, new ZipFile(fileInfo.uncompressed_size)));

	if(unzReadCurrentFile(m_ZipFileHandle, result.first->second->m_Buffer, fileInfo.uncompressed_size) == (long int) fileInfo.uncompressed_size) {
	if(unzCloseCurrentFile(m_ZipFileHandle) == UNZ_OK) {
	// Nothing to do anymore...
	}
	}
	}
	}
	} while(unzGoToNextFile(m_ZipFileHandle) != UNZ_END_OF_LIST_OF_FILE);
	}
	}

	success = true;
	}

	return success;
	}

	// ------------------------------------------------------------------------------------------------

	} // Namespace Q3BSP
	} // Namespace Assimp

	#endif // ASSIMP_BUILD_NO_Q3BSP_IMPORTER