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Diffstat (limited to 'src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h')
| -rw-r--r-- | src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h b/src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h deleted file mode 100644 index b4c3776..0000000 --- a/src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h +++ /dev/null @@ -1,250 +0,0 @@ -/* -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. - -* 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 MemoryIOWrapper.h - * Handy IOStream/IOSystem implementation to read directly from a memory buffer */ -#pragma once -#ifndef AI_MEMORYIOSTREAM_H_INC -#define AI_MEMORYIOSTREAM_H_INC - -#ifdef __GNUC__ -# pragma GCC system_header -#endif - -#include <assimp/IOStream.hpp> -#include <assimp/IOSystem.hpp> -#include <assimp/ai_assert.h> - -#include <stdint.h> - -namespace Assimp { - -#define AI_MEMORYIO_MAGIC_FILENAME "$$$___magic___$$$" -#define AI_MEMORYIO_MAGIC_FILENAME_LENGTH 17 - -// ---------------------------------------------------------------------------------- -/** Implementation of IOStream to read directly from a memory buffer */ -// ---------------------------------------------------------------------------------- -class MemoryIOStream : public IOStream { -public: - MemoryIOStream (const uint8_t* buff, size_t len, bool own = false) - : buffer (buff) - , length(len) - , pos((size_t)0) - , own(own) { - // empty - } - - ~MemoryIOStream () { - if(own) { - delete[] buffer; - } - } - - // ------------------------------------------------------------------- - // Read from stream - size_t Read(void* pvBuffer, size_t pSize, size_t pCount) { - ai_assert(nullptr != pvBuffer); - ai_assert(0 != pSize); - - const size_t cnt = std::min( pCount, (length-pos) / pSize); - const size_t ofs = pSize * cnt; - - ::memcpy(pvBuffer,buffer+pos,ofs); - pos += ofs; - - return cnt; - } - - // ------------------------------------------------------------------- - // Write to stream - size_t Write(const void* /*pvBuffer*/, size_t /*pSize*/,size_t /*pCount*/) { - ai_assert(false); // won't be needed - return 0; - } - - // ------------------------------------------------------------------- - // Seek specific position - aiReturn Seek(size_t pOffset, aiOrigin pOrigin) { - if (aiOrigin_SET == pOrigin) { - if (pOffset > length) { - return AI_FAILURE; - } - pos = pOffset; - } else if (aiOrigin_END == pOrigin) { - if (pOffset > length) { - return AI_FAILURE; - } - pos = length-pOffset; - } else { - if (pOffset+pos > length) { - return AI_FAILURE; - } - pos += pOffset; - } - return AI_SUCCESS; - } - - // ------------------------------------------------------------------- - // Get current seek position - size_t Tell() const { - return pos; - } - - // ------------------------------------------------------------------- - // Get size of file - size_t FileSize() const { - return length; - } - - // ------------------------------------------------------------------- - // Flush file contents - void Flush() { - ai_assert(false); // won't be needed - } - -private: - const uint8_t* buffer; - size_t length,pos; - bool own; -}; - -// --------------------------------------------------------------------------- -/** Dummy IO system to read from a memory buffer */ -class MemoryIOSystem : public IOSystem { -public: - /** Constructor. */ - MemoryIOSystem(const uint8_t* buff, size_t len, IOSystem* io) - : buffer(buff) - , length(len) - , existing_io(io) - , created_streams() { - // empty - } - - /** Destructor. */ - ~MemoryIOSystem() { - } - - // ------------------------------------------------------------------- - /** Tests for the existence of a file at the given path. */ - bool Exists(const char* pFile) const override { - if (0 == strncmp( pFile, AI_MEMORYIO_MAGIC_FILENAME, AI_MEMORYIO_MAGIC_FILENAME_LENGTH ) ) { - return true; - } - return existing_io ? existing_io->Exists(pFile) : false; - } - - // ------------------------------------------------------------------- - /** Returns the directory separator. */ - char getOsSeparator() const override { - return existing_io ? existing_io->getOsSeparator() - : '/'; // why not? it doesn't care - } - - // ------------------------------------------------------------------- - /** Open a new file with a given path. */ - IOStream* Open(const char* pFile, const char* pMode = "rb") override { - if ( 0 == strncmp( pFile, AI_MEMORYIO_MAGIC_FILENAME, AI_MEMORYIO_MAGIC_FILENAME_LENGTH ) ) { - created_streams.emplace_back(new MemoryIOStream(buffer, length)); - return created_streams.back(); - } - return existing_io ? existing_io->Open(pFile, pMode) : NULL; - } - - // ------------------------------------------------------------------- - /** Closes the given file and releases all resources associated with it. */ - void Close( IOStream* pFile) override { - auto it = std::find(created_streams.begin(), created_streams.end(), pFile); - if (it != created_streams.end()) { - delete pFile; - created_streams.erase(it); - } else if (existing_io) { - existing_io->Close(pFile); - } - } - - // ------------------------------------------------------------------- - /** Compare two paths */ - bool ComparePaths(const char* one, const char* second) const override { - return existing_io ? existing_io->ComparePaths(one, second) : false; - } - - bool PushDirectory( const std::string &path ) override { - return existing_io ? existing_io->PushDirectory(path) : false; - } - - const std::string &CurrentDirectory() const override { - static std::string empty; - return existing_io ? existing_io->CurrentDirectory() : empty; - } - - size_t StackSize() const override { - return existing_io ? existing_io->StackSize() : 0; - } - - bool PopDirectory() override { - return existing_io ? existing_io->PopDirectory() : false; - } - - bool CreateDirectory( const std::string &path ) override { - return existing_io ? existing_io->CreateDirectory(path) : false; - } - - bool ChangeDirectory( const std::string &path ) override { - return existing_io ? existing_io->ChangeDirectory(path) : false; - } - - bool DeleteFile( const std::string &file ) override { - return existing_io ? existing_io->DeleteFile(file) : false; - } - -private: - const uint8_t* buffer; - size_t length; - IOSystem* existing_io; - std::vector<IOStream*> created_streams; -}; - -} // end namespace Assimp - -#endif |