| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // ====================================================================== | ||
| 2 | // \title DpZLibCompressor.hpp | ||
| 3 | // \author kubiak | ||
| 4 | // \brief hpp file for DpZLibCompressor component implementation class | ||
| 5 | // ====================================================================== | ||
| 6 | |||
| 7 | #ifndef Svc_DpZLibCompressor_HPP | ||
| 8 | #define Svc_DpZLibCompressor_HPP | ||
| 9 | |||
| 10 | #include "Svc/DpZLibCompressor/DpZLibCompressorComponentAc.hpp" | ||
| 11 | |||
| 12 | #include <zlib.h> | ||
| 13 | |||
| 14 | namespace Svc { | ||
| 15 | |||
| 16 | class DpZLibCompressor final : public DpZLibCompressorComponentBase { | ||
| 17 | public: | ||
| 18 | // ---------------------------------------------------------------------- | ||
| 19 | // Component construction and destruction | ||
| 20 | // ---------------------------------------------------------------------- | ||
| 21 | |||
| 22 | //! Construct DpZLibCompressor object | ||
| 23 | DpZLibCompressor(const char* const compName //!< The component name | ||
| 24 | ); | ||
| 25 | |||
| 26 | //! Destroy DpZLibCompressor object | ||
| 27 | ~DpZLibCompressor(); | ||
| 28 | |||
| 29 | private: | ||
| 30 | // ---------------------------------------------------------------------- | ||
| 31 | // Handler implementations for typed input ports | ||
| 32 | // ---------------------------------------------------------------------- | ||
| 33 | |||
| 34 | //! Handler implementation for compressChunk | ||
| 35 | Svc::CompressionAlgorithm compressChunk_handler(FwIndexType portNum, //!< The port number | ||
| 36 | Fw::Buffer& buffer, | ||
| 37 | FwSizeType min_compression, | ||
| 38 | FwSizeType write_offset) override; | ||
| 39 | |||
| 40 | struct ZLibCtx { | ||
| 41 | Fw::Buffer compression_buffer; | ||
| 42 | |||
| 43 | Fw::Buffer zlib_alloc_buffer; | ||
| 44 | FwSizeType bump_allocator; | ||
| 45 | |||
| 46 | z_stream zlib_stream; | ||
| 47 | DpZLibCompressor& comp; | ||
| 48 | |||
| 49 | ✗ | explicit ZLibCtx(DpZLibCompressor& c) | |
| 50 | ✗ | : compression_buffer(), zlib_alloc_buffer(), bump_allocator(0), zlib_stream(), comp(c) {} | |
| 51 | }; | ||
| 52 | |||
| 53 | void cleanupContext(ZLibCtx& ctx); | ||
| 54 | |||
| 55 | CompressionAlgorithm zlibCompressionHelper(ZLibCtx& ctx, const Fw::Buffer& in_buffer); | ||
| 56 | |||
| 57 | static voidpf zlib_alloc_fn(voidpf opaque, uInt items, uInt size); | ||
| 58 | static void zlib_free_fn(voidpf opaque, voidpf address); | ||
| 59 | }; | ||
| 60 | |||
| 61 | } // namespace Svc | ||
| 62 | |||
| 63 | #endif | ||
| 64 |