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authorsanine <sanine.not@pm.me>2022-04-16 11:55:54 -0500
committersanine <sanine.not@pm.me>2022-04-16 11:55:54 -0500
commit8fb7916a0d0cb007a4c3a4e6a31af58765268ca3 (patch)
tree52b5524a94a5b04e17a1fd7f8aca988ab6d0c75f /src/mesh/assimp-master/include/assimp/IOStreamBuffer.h
parentdb81b925d776103326128bf629cbdda576a223e7 (diff)
delete src/mesh/assimp-master
Diffstat (limited to 'src/mesh/assimp-master/include/assimp/IOStreamBuffer.h')
-rw-r--r--src/mesh/assimp-master/include/assimp/IOStreamBuffer.h352
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diff --git a/src/mesh/assimp-master/include/assimp/IOStreamBuffer.h b/src/mesh/assimp-master/include/assimp/IOStreamBuffer.h
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--- a/src/mesh/assimp-master/include/assimp/IOStreamBuffer.h
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@@ -1,352 +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.
-
-----------------------------------------------------------------------
-*/
-
-#pragma once
-#ifndef AI_IOSTREAMBUFFER_H_INC
-#define AI_IOSTREAMBUFFER_H_INC
-
-#ifdef __GNUC__
-#pragma GCC system_header
-#endif
-
-#include <assimp/ParsingUtils.h>
-#include <assimp/types.h>
-#include <assimp/IOStream.hpp>
-
-#include <vector>
-
-namespace Assimp {
-
-// ---------------------------------------------------------------------------
-/**
- * Implementation of a cached stream buffer.
- */
-template <class T>
-class IOStreamBuffer {
-public:
- /// @brief The class constructor.
- IOStreamBuffer(size_t cache = 4096 * 4096);
-
- /// @brief The class destructor.
- ~IOStreamBuffer();
-
- /// @brief Will open the cached access for a given stream.
- /// @param stream The stream to cache.
- /// @return true if successful.
- bool open(IOStream *stream);
-
- /// @brief Will close the cached access.
- /// @return true if successful.
- bool close();
-
- /// @brief Returns the file-size.
- /// @return The file-size.
- size_t size() const;
-
- /// @brief Returns the cache size.
- /// @return The cache size.
- size_t cacheSize() const;
-
- /// @brief Will read the next block.
- /// @return true if successful.
- bool readNextBlock();
-
- /// @brief Returns the number of blocks to read.
- /// @return The number of blocks.
- size_t getNumBlocks() const;
-
- /// @brief Returns the current block index.
- /// @return The current block index.
- size_t getCurrentBlockIndex() const;
-
- /// @brief Returns the current file pos.
- /// @return The current file pos.
- size_t getFilePos() const;
-
- /// @brief Will read the next line.
- /// @param buffer The buffer for the next line.
- /// @return true if successful.
- bool getNextDataLine(std::vector<T> &buffer, T continuationToken);
-
- /// @brief Will read the next line ascii or binary end line char.
- /// @param buffer The buffer for the next line.
- /// @return true if successful.
- bool getNextLine(std::vector<T> &buffer);
-
- /// @brief Will read the next block.
- /// @param buffer The buffer for the next block.
- /// @return true if successful.
- bool getNextBlock(std::vector<T> &buffer);
-
-private:
- IOStream *m_stream;
- size_t m_filesize;
- size_t m_cacheSize;
- size_t m_numBlocks;
- size_t m_blockIdx;
- std::vector<T> m_cache;
- size_t m_cachePos;
- size_t m_filePos;
-};
-
-template <class T>
-AI_FORCE_INLINE IOStreamBuffer<T>::IOStreamBuffer(size_t cache) :
- m_stream(nullptr),
- m_filesize(0),
- m_cacheSize(cache),
- m_numBlocks(0),
- m_blockIdx(0),
- m_cachePos(0),
- m_filePos(0) {
- m_cache.resize(cache);
- std::fill(m_cache.begin(), m_cache.end(), '\n');
-}
-
-template <class T>
-AI_FORCE_INLINE IOStreamBuffer<T>::~IOStreamBuffer() {
- // empty
-}
-
-template <class T>
-AI_FORCE_INLINE bool IOStreamBuffer<T>::open(IOStream *stream) {
- // file still opened!
- if (nullptr != m_stream) {
- return false;
- }
-
- // Invalid stream pointer
- if (nullptr == stream) {
- return false;
- }
-
- m_stream = stream;
- m_filesize = m_stream->FileSize();
- if (m_filesize == 0) {
- return false;
- }
- if (m_filesize < m_cacheSize) {
- m_cacheSize = m_filesize;
- }
-
- m_numBlocks = m_filesize / m_cacheSize;
- if ((m_filesize % m_cacheSize) > 0) {
- m_numBlocks++;
- }
-
- return true;
-}
-
-template <class T>
-AI_FORCE_INLINE bool IOStreamBuffer<T>::close() {
- if (nullptr == m_stream) {
- return false;
- }
-
- // init counters and state vars
- m_stream = nullptr;
- m_filesize = 0;
- m_numBlocks = 0;
- m_blockIdx = 0;
- m_cachePos = 0;
- m_filePos = 0;
-
- return true;
-}
-
-template <class T>
-AI_FORCE_INLINE
- size_t
- IOStreamBuffer<T>::size() const {
- return m_filesize;
-}
-
-template <class T>
-AI_FORCE_INLINE
- size_t
- IOStreamBuffer<T>::cacheSize() const {
- return m_cacheSize;
-}
-
-template <class T>
-AI_FORCE_INLINE bool IOStreamBuffer<T>::readNextBlock() {
- m_stream->Seek(m_filePos, aiOrigin_SET);
- size_t readLen = m_stream->Read(&m_cache[0], sizeof(T), m_cacheSize);
- if (readLen == 0) {
- return false;
- }
- if (readLen < m_cacheSize) {
- m_cacheSize = readLen;
- }
- m_filePos += m_cacheSize;
- m_cachePos = 0;
- m_blockIdx++;
-
- return true;
-}
-
-template <class T>
-AI_FORCE_INLINE size_t IOStreamBuffer<T>::getNumBlocks() const {
- return m_numBlocks;
-}
-
-template <class T>
-AI_FORCE_INLINE size_t IOStreamBuffer<T>::getCurrentBlockIndex() const {
- return m_blockIdx;
-}
-
-template <class T>
-AI_FORCE_INLINE size_t IOStreamBuffer<T>::getFilePos() const {
- return m_filePos;
-}
-
-template <class T>
-AI_FORCE_INLINE bool IOStreamBuffer<T>::getNextDataLine(std::vector<T> &buffer, T continuationToken) {
- buffer.resize(m_cacheSize);
- if (m_cachePos >= m_cacheSize || 0 == m_filePos) {
- if (!readNextBlock()) {
- return false;
- }
- }
-
- size_t i = 0;
- for (;;) {
- if (continuationToken == m_cache[m_cachePos] && IsLineEnd(m_cache[m_cachePos + 1])) {
- ++m_cachePos;
- while (m_cache[m_cachePos] != '\n') {
- ++m_cachePos;
- }
- ++m_cachePos;
- } else if (IsLineEnd(m_cache[m_cachePos])) {
- break;
- }
-
- buffer[i] = m_cache[m_cachePos];
- ++m_cachePos;
- ++i;
-
- if(i == buffer.size()) {
- buffer.resize(buffer.size() * 2);
- }
-
- if (m_cachePos >= size()) {
- break;
- }
- if (m_cachePos >= m_cacheSize) {
- if (!readNextBlock()) {
- return false;
- }
- }
- }
-
- buffer[i] = '\n';
- ++m_cachePos;
-
- return true;
-}
-
-static AI_FORCE_INLINE bool isEndOfCache(size_t pos, size_t cacheSize) {
- return (pos == cacheSize);
-}
-
-template <class T>
-AI_FORCE_INLINE bool IOStreamBuffer<T>::getNextLine(std::vector<T> &buffer) {
- buffer.resize(m_cacheSize);
- if (isEndOfCache(m_cachePos, m_cacheSize) || 0 == m_filePos) {
- if (!readNextBlock()) {
- return false;
- }
- }
-
- if (IsLineEnd(m_cache[m_cachePos])) {
- // skip line end
- while (m_cache[m_cachePos] != '\n') {
- ++m_cachePos;
- }
- ++m_cachePos;
- if (isEndOfCache(m_cachePos, m_cacheSize)) {
- if (!readNextBlock()) {
- return false;
- }
- }
- }
-
- size_t i(0);
- while (!IsLineEnd(m_cache[m_cachePos])) {
- buffer[i] = m_cache[m_cachePos];
- ++m_cachePos;
- ++i;
-
- if(i == buffer.size()) {
- buffer.resize(buffer.size() * 2);
- }
-
- if (m_cachePos >= m_cacheSize) {
- if (!readNextBlock()) {
- return false;
- }
- }
- }
- buffer[i] = '\n';
- ++m_cachePos;
-
- return true;
-}
-
-template <class T>
-AI_FORCE_INLINE bool IOStreamBuffer<T>::getNextBlock(std::vector<T> &buffer) {
- // Return the last block-value if getNextLine was used before
- if (0 != m_cachePos) {
- buffer = std::vector<T>(m_cache.begin() + m_cachePos, m_cache.end());
- m_cachePos = 0;
- } else {
- if (!readNextBlock()) {
- return false;
- }
-
- buffer = std::vector<T>(m_cache.begin(), m_cache.end());
- }
-
- return true;
-}
-
-} // namespace Assimp
-
-#endif // AI_IOSTREAMBUFFER_H_INC