diff options
Diffstat (limited to 'libs/assimp/code/Common/Compression.h')
| -rw-r--r-- | libs/assimp/code/Common/Compression.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/libs/assimp/code/Common/Compression.h b/libs/assimp/code/Common/Compression.h new file mode 100644 index 0000000..edf1d23 --- /dev/null +++ b/libs/assimp/code/Common/Compression.h @@ -0,0 +1,121 @@ +/* +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 + +#ifdef ASSIMP_BUILD_NO_OWN_ZLIB +#include <zlib.h> +#else +#include "../contrib/zlib/zlib.h" +#endif + +#include <vector> +#include <cstddef> // size_t + +namespace Assimp { + +/// @brief This class provides the decompression of zlib-compressed data. +class Compression { +public: + static const int MaxWBits = MAX_WBITS; + + /// @brief Describes the format data type + enum class Format { + InvalidFormat = -1, ///< Invalid enum type. + Binary = 0, ///< Binary format. + ASCII, ///< ASCII format. + + NumFormats ///< The number of supported formats. + }; + + /// @brief The supported flush mode, used for blocked access. + enum class FlushMode { + InvalidFormat = -1, ///< Invalid enum type. + NoFlush = 0, ///< No flush, will be done on inflate end. + Block, ///< Assists in combination of compress. + Tree, ///< Assists in combination of compress and returns if stream is finish. + SyncFlush, ///< Synced flush mode. + Finish, ///< Finish mode, all in once, no block access. + + NumModes ///< The number of supported modes. + }; + + /// @brief The class constructor. + Compression(); + + /// @brief The class destructor. + ~Compression(); + + /// @brief Will open the access to the compression. + /// @param[in] format The format type + /// @param[in] flush The flush mode. + /// @param[in] windowBits The windows history working size, shall be between 8 and 15. + /// @return true if close was successful, false if not. + bool open(Format format, FlushMode flush, int windowBits); + + /// @brief Will return the open state. + /// @return true if the access is opened, false if not. + bool isOpen() const; + + /// @brief Will close the decompress access. + /// @return true if close was successful, false if not. + bool close(); + + /// @brief Will decompress the data buffer in one step. + /// @param[in] data The data to decompress + /// @param[in] in The size of the data. + /// @param[out uncompressed A std::vector containing the decompressed data. + size_t decompress(const void *data, size_t in, std::vector<char> &uncompressed); + + /// @brief Will decompress the data buffer block-wise. + /// @param[in] data The compressed data + /// @param[in] in The size of the data buffer + /// @param[out] out The output buffer + /// @param[out] availableOut The upper limit of the output buffer. + /// @return The size of the decompressed data buffer. + size_t decompressBlock(const void *data, size_t in, char *out, size_t availableOut); + +private: + struct impl; + impl *mImpl; +}; + +} // namespace Assimp |