diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/7zip/Compress/DeltaFilter.cpp')
-rw-r--r-- | src/libs/7zip/win/CPP/7zip/Compress/DeltaFilter.cpp | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Compress/DeltaFilter.cpp b/src/libs/7zip/win/CPP/7zip/Compress/DeltaFilter.cpp deleted file mode 100644 index d8378a60e..000000000 --- a/src/libs/7zip/win/CPP/7zip/Compress/DeltaFilter.cpp +++ /dev/null @@ -1,125 +0,0 @@ -// DeltaFilter.cpp - -#include "StdAfx.h" - -#include "../../../C/Delta.h" - -#include "../Common/RegisterCodec.h" - -#include "BranchCoder.h" - -struct CDelta -{ - unsigned _delta; - Byte _state[DELTA_STATE_SIZE]; - CDelta(): _delta(1) {} - void DeltaInit() { Delta_Init(_state); } -}; - -class CDeltaEncoder: - public ICompressFilter, - public ICompressSetCoderProperties, - public ICompressWriteCoderProperties, - CDelta, - public CMyUnknownImp -{ -public: - MY_UNKNOWN_IMP2(ICompressSetCoderProperties, ICompressWriteCoderProperties) - STDMETHOD(Init)(); - STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size); - STDMETHOD(SetCoderProperties)(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps); - STDMETHOD(WriteCoderProperties)(ISequentialOutStream *outStream); -}; - -class CDeltaDecoder: - public ICompressFilter, - public ICompressSetDecoderProperties2, - CDelta, - public CMyUnknownImp -{ -public: - MY_UNKNOWN_IMP1(ICompressSetDecoderProperties2) - STDMETHOD(Init)(); - STDMETHOD_(UInt32, Filter)(Byte *data, UInt32 size); - STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size); -}; - -STDMETHODIMP CDeltaEncoder::Init() -{ - DeltaInit(); - return S_OK; -} - -STDMETHODIMP_(UInt32) CDeltaEncoder::Filter(Byte *data, UInt32 size) -{ - Delta_Encode(_state, _delta, data, size); - return size; -} - -STDMETHODIMP CDeltaEncoder::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps) -{ - UInt32 delta = _delta; - for (UInt32 i = 0; i < numProps; i++) - { - const PROPVARIANT &prop = props[i]; - PROPID propID = propIDs[i]; - if (propID >= NCoderPropID::kReduceSize) - continue; - if (prop.vt != VT_UI4) - return E_INVALIDARG; - switch (propID) - { - case NCoderPropID::kDefaultProp: - delta = (UInt32)prop.ulVal; - if (delta < 1 || delta > 256) - return E_INVALIDARG; - break; - case NCoderPropID::kNumThreads: break; - case NCoderPropID::kLevel: break; - default: return E_INVALIDARG; - } - } - _delta = delta; - return S_OK; -} - -STDMETHODIMP CDeltaEncoder::WriteCoderProperties(ISequentialOutStream *outStream) -{ - Byte prop = (Byte)(_delta - 1); - return outStream->Write(&prop, 1, NULL); -} - -STDMETHODIMP CDeltaDecoder::Init() -{ - DeltaInit(); - return S_OK; -} - -STDMETHODIMP_(UInt32) CDeltaDecoder::Filter(Byte *data, UInt32 size) -{ - Delta_Decode(_state, _delta, data, size); - return size; -} - -STDMETHODIMP CDeltaDecoder::SetDecoderProperties2(const Byte *props, UInt32 size) -{ - if (size != 1) - return E_INVALIDARG; - _delta = (unsigned)props[0] + 1; - return S_OK; -} - -#define CREATE_CODEC(x) \ - static void *CreateCodec ## x() { return (void *)(ICompressFilter *)(new C ## x ## Decoder); } \ - static void *CreateCodec ## x ## Out() { return (void *)(ICompressFilter *)(new C ## x ## Encoder); } - -CREATE_CODEC(Delta) - -#define METHOD_ITEM(x, id, name) { CreateCodec ## x, CreateCodec ## x ## Out, id, name, 1, true } - -static CCodecInfo g_CodecsInfo[] = -{ - METHOD_ITEM(Delta, 3, L"Delta") -}; - -REGISTER_CODECS(Delta) |