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Diffstat (limited to 'src/mesh/assimp-master/include/assimp/BlobIOSystem.h')
| -rw-r--r-- | src/mesh/assimp-master/include/assimp/BlobIOSystem.h | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/src/mesh/assimp-master/include/assimp/BlobIOSystem.h b/src/mesh/assimp-master/include/assimp/BlobIOSystem.h deleted file mode 100644 index 7e8d46a..0000000 --- a/src/mesh/assimp-master/include/assimp/BlobIOSystem.h +++ /dev/null @@ -1,323 +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 Provides cheat implementations for IOSystem and IOStream to - * redirect exporter output to a blob chain.*/ - -#pragma once -#ifndef AI_BLOBIOSYSTEM_H_INCLUDED -#define AI_BLOBIOSYSTEM_H_INCLUDED - -#ifdef __GNUC__ -#pragma GCC system_header -#endif - -#include <assimp/cexport.h> -#include <assimp/DefaultLogger.hpp> -#include <assimp/IOStream.hpp> -#include <assimp/IOSystem.hpp> -#include <cstdint> -#include <set> -#include <vector> - -namespace Assimp { -class BlobIOSystem; - -// -------------------------------------------------------------------------------------------- -/** Redirect IOStream to a blob */ -// -------------------------------------------------------------------------------------------- -class BlobIOStream : public IOStream { -public: - /// @brief The class constructor with all needed parameters - /// @param creator Pointer to the creator instance - /// @param file The filename - /// @param initial The initial size - BlobIOStream(BlobIOSystem *creator, const std::string &file, size_t initial = 4096) : - buffer(), - cur_size(), - file_size(), - cursor(), - initial(initial), - file(file), - creator(creator) { - // empty - } - - /// @brief The class destructor. - ~BlobIOStream() override; - -public: - // ------------------------------------------------------------------- - aiExportDataBlob *GetBlob() { - aiExportDataBlob *blob = new aiExportDataBlob(); - blob->size = file_size; - blob->data = buffer; - - buffer = nullptr; - - return blob; - } - - // ------------------------------------------------------------------- - size_t Read(void *, size_t, size_t) override { - return 0; - } - - // ------------------------------------------------------------------- - size_t Write(const void *pvBuffer, size_t pSize, size_t pCount) override { - pSize *= pCount; - if (cursor + pSize > cur_size) { - Grow(cursor + pSize); - } - - memcpy(buffer + cursor, pvBuffer, pSize); - cursor += pSize; - - file_size = std::max(file_size, cursor); - return pCount; - } - - // ------------------------------------------------------------------- - aiReturn Seek(size_t pOffset, aiOrigin pOrigin) override { - switch (pOrigin) { - case aiOrigin_CUR: - cursor += pOffset; - break; - - case aiOrigin_END: - cursor = file_size - pOffset; - break; - - case aiOrigin_SET: - cursor = pOffset; - break; - - default: - return AI_FAILURE; - } - - if (cursor > file_size) { - Grow(cursor); - } - - file_size = std::max(cursor, file_size); - - return AI_SUCCESS; - } - - // ------------------------------------------------------------------- - size_t Tell() const override { - return cursor; - } - - // ------------------------------------------------------------------- - size_t FileSize() const override { - return file_size; - } - - // ------------------------------------------------------------------- - void Flush() override { - // ignore - } - -private: - // ------------------------------------------------------------------- - void Grow(size_t need = 0) { - // 1.5 and phi are very heap-friendly growth factors (the first - // allows for frequent re-use of heap blocks, the second - // forms a fibonacci sequence with similar characteristics - - // since this heavily depends on the heap implementation - // and other factors as well, i'll just go with 1.5 since - // it is quicker to compute). - size_t new_size = std::max(initial, std::max(need, cur_size + (cur_size >> 1))); - - const uint8_t *const old = buffer; - buffer = new uint8_t[new_size]; - - if (old) { - memcpy(buffer, old, cur_size); - delete[] old; - } - - cur_size = new_size; - } - -private: - uint8_t *buffer; - size_t cur_size, file_size, cursor, initial; - - const std::string file; - BlobIOSystem *const creator; -}; - -#define AI_BLOBIO_MAGIC "$blobfile" - -// -------------------------------------------------------------------------------------------- -/** Redirect IOSystem to a blob */ -// -------------------------------------------------------------------------------------------- -class BlobIOSystem : public IOSystem { - - friend class BlobIOStream; - typedef std::pair<std::string, aiExportDataBlob *> BlobEntry; - - -public: - /// @brief The default class constructor. - BlobIOSystem() : - baseName{AI_BLOBIO_MAGIC} { - } - - /// @brief The class constructor with the base name. - /// @param baseName The base name. - BlobIOSystem(const std::string &baseName) : - baseName(baseName) { - // empty - } - - ~BlobIOSystem() override { - for (BlobEntry &blobby : blobs) { - delete blobby.second; - } - } - -public: - // ------------------------------------------------------------------- - const char *GetMagicFileName() const { - return baseName.c_str(); - } - - // ------------------------------------------------------------------- - aiExportDataBlob *GetBlobChain() { - const auto magicName = std::string(this->GetMagicFileName()); - const bool hasBaseName = baseName != AI_BLOBIO_MAGIC; - - // one must be the master - aiExportDataBlob *master = nullptr, *cur; - - for (const BlobEntry &blobby : blobs) { - if (blobby.first == magicName) { - master = blobby.second; - master->name.Set(hasBaseName ? blobby.first : ""); - break; - } - } - - if (!master) { - ASSIMP_LOG_ERROR("BlobIOSystem: no data written or master file was not closed properly."); - return nullptr; - } - - cur = master; - - for (const BlobEntry &blobby : blobs) { - if (blobby.second == master) { - continue; - } - - cur->next = blobby.second; - cur = cur->next; - - if (hasBaseName) { - cur->name.Set(blobby.first); - } else { - // extract the file extension from the file written - const std::string::size_type s = blobby.first.find_first_of('.'); - cur->name.Set(s == std::string::npos ? blobby.first : blobby.first.substr(s + 1)); - } - } - - // give up blob ownership - blobs.clear(); - return master; - } - -public: - // ------------------------------------------------------------------- - bool Exists(const char *pFile) const override { - return created.find(std::string(pFile)) != created.end(); - } - - // ------------------------------------------------------------------- - char getOsSeparator() const override { - return '/'; - } - - // ------------------------------------------------------------------- - IOStream *Open(const char *pFile, const char *pMode) override { - if (pMode[0] != 'w') { - return nullptr; - } - - created.insert(std::string(pFile)); - return new BlobIOStream(this, std::string(pFile)); - } - - // ------------------------------------------------------------------- - void Close(IOStream *pFile) override { - delete pFile; - } - -private: - // ------------------------------------------------------------------- - void OnDestruct(const std::string &filename, BlobIOStream *child) { - // we don't know in which the files are closed, so we - // can't reliably say that the first must be the master - // file ... - blobs.emplace_back(filename, child->GetBlob()); - } - -private: - std::string baseName; - std::set<std::string> created; - std::vector<BlobEntry> blobs; -}; - -// -------------------------------------------------------------------------------------------- -BlobIOStream::~BlobIOStream() { - if (nullptr != creator) { - creator->OnDestruct(file, this); - } - delete[] buffer; -} - -} // namespace Assimp - -#endif |