diff options
author | kh1 <karsten.heimrich@nokia.com> | 2012-03-15 14:53:47 +0100 |
---|---|---|
committer | Karsten Heimrich <karsten.heimrich@nokia.com> | 2012-03-19 16:14:04 +0100 |
commit | be3b47d0d504a3409ce66bd77bb8c0acff87c4f5 (patch) | |
tree | 09dfb02d484a4f395991972b828da71400fb761a /src/libs/7zip/win/CPP/7zip/Compress/CodecExports.cpp | |
parent | 9fd62353cf7f973d78cd2093328ac15b5c4980b6 (diff) |
Reorganize the tree, have better ifw.pri. Shadow build support.
Change-Id: I01fb12537f863ed0744979973c7e4153889cc5cb
Reviewed-by: Tim Jenssen <tim.jenssen@nokia.com>
Diffstat (limited to 'src/libs/7zip/win/CPP/7zip/Compress/CodecExports.cpp')
-rw-r--r-- | src/libs/7zip/win/CPP/7zip/Compress/CodecExports.cpp | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Compress/CodecExports.cpp b/src/libs/7zip/win/CPP/7zip/Compress/CodecExports.cpp new file mode 100644 index 000000000..4ff1c0fcb --- /dev/null +++ b/src/libs/7zip/win/CPP/7zip/Compress/CodecExports.cpp @@ -0,0 +1,160 @@ +// CodecExports.cpp + +#include "StdAfx.h" + +#include "../../Common/ComTry.h" + +#include "../../Windows/PropVariant.h" + +#include "../ICoder.h" + +#include "../Common/RegisterCodec.h" + +extern unsigned int g_NumCodecs; +extern const CCodecInfo *g_Codecs[]; + +static const UInt16 kDecodeId = 0x2790; + +DEFINE_GUID(CLSID_CCodec, +0x23170F69, 0x40C1, kDecodeId, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00); + +static inline HRESULT SetPropString(const char *s, unsigned int size, PROPVARIANT *value) +{ + if ((value->bstrVal = ::SysAllocStringByteLen(s, size)) != 0) + value->vt = VT_BSTR; + return S_OK; +} + +static inline HRESULT SetPropGUID(const GUID &guid, PROPVARIANT *value) +{ + return SetPropString((const char *)&guid, sizeof(GUID), value); +} + +static HRESULT SetClassID(CMethodId id, bool encode, PROPVARIANT *value) +{ + GUID clsId = CLSID_CCodec; + for (int i = 0; i < sizeof(id); i++, id >>= 8) + clsId.Data4[i] = (Byte)(id & 0xFF); + if (encode) + clsId.Data3++; + return SetPropGUID(clsId, value); +} + +static HRESULT FindCodecClassId(const GUID *clsID, UInt32 isCoder2, bool isFilter, bool &encode, int &index) +{ + index = -1; + if (clsID->Data1 != CLSID_CCodec.Data1 || + clsID->Data2 != CLSID_CCodec.Data2 || + (clsID->Data3 & ~1) != kDecodeId) + return S_OK; + encode = (clsID->Data3 != kDecodeId); + UInt64 id = 0; + for (int j = 0; j < 8; j++) + id |= ((UInt64)clsID->Data4[j]) << (8 * j); + for (unsigned i = 0; i < g_NumCodecs; i++) + { + const CCodecInfo &codec = *g_Codecs[i]; + if (id != codec.Id || encode && !codec.CreateEncoder || !encode && !codec.CreateDecoder) + continue; + if (!isFilter && codec.IsFilter || isFilter && !codec.IsFilter || + codec.NumInStreams != 1 && !isCoder2 || codec.NumInStreams == 1 && isCoder2) + return E_NOINTERFACE; + index = i; + return S_OK; + } + return S_OK; +} + +STDAPI CreateCoder2(bool encode, UInt32 index, const GUID *iid, void **outObject) +{ + COM_TRY_BEGIN + *outObject = 0; + bool isCoder = (*iid == IID_ICompressCoder) != 0; + bool isCoder2 = (*iid == IID_ICompressCoder2) != 0; + bool isFilter = (*iid == IID_ICompressFilter) != 0; + const CCodecInfo &codec = *g_Codecs[index]; + if (!isFilter && codec.IsFilter || isFilter && !codec.IsFilter || + codec.NumInStreams != 1 && !isCoder2 || codec.NumInStreams == 1 && isCoder2) + return E_NOINTERFACE; + if (encode) + { + if (!codec.CreateEncoder) + return CLASS_E_CLASSNOTAVAILABLE; + *outObject = codec.CreateEncoder(); + } + else + { + if (!codec.CreateDecoder) + return CLASS_E_CLASSNOTAVAILABLE; + *outObject = codec.CreateDecoder(); + } + if (isCoder) + ((ICompressCoder *)*outObject)->AddRef(); + else if (isCoder2) + ((ICompressCoder2 *)*outObject)->AddRef(); + else + ((ICompressFilter *)*outObject)->AddRef(); + return S_OK; + COM_TRY_END +} + +STDAPI CreateCoder(const GUID *clsid, const GUID *iid, void **outObject) +{ + *outObject = 0; + bool isCoder = (*iid == IID_ICompressCoder) != 0; + bool isCoder2 = (*iid == IID_ICompressCoder2) != 0; + bool isFilter = (*iid == IID_ICompressFilter) != 0; + if (!isCoder && !isCoder2 && !isFilter) + return E_NOINTERFACE; + bool encode; + int codecIndex; + HRESULT res = FindCodecClassId(clsid, isCoder2, isFilter, encode, codecIndex); + if (res != S_OK) + return res; + if (codecIndex < 0) + return CLASS_E_CLASSNOTAVAILABLE; + return CreateCoder2(encode, codecIndex, iid, outObject); +} + +STDAPI GetMethodProperty(UInt32 codecIndex, PROPID propID, PROPVARIANT *value) +{ + ::VariantClear((VARIANTARG *)value); + const CCodecInfo &codec = *g_Codecs[codecIndex]; + switch(propID) + { + case NMethodPropID::kID: + { + value->uhVal.QuadPart = (UInt64)codec.Id; + value->vt = VT_UI8; + break; + } + case NMethodPropID::kName: + if ((value->bstrVal = ::SysAllocString(codec.Name)) != 0) + value->vt = VT_BSTR; + break; + case NMethodPropID::kDecoder: + if (codec.CreateDecoder) + return SetClassID(codec.Id, false, value); + break; + case NMethodPropID::kEncoder: + if (codec.CreateEncoder) + return SetClassID(codec.Id, true, value); + break; + case NMethodPropID::kInStreams: + { + if (codec.NumInStreams != 1) + { + value->vt = VT_UI4; + value->ulVal = (ULONG)codec.NumInStreams; + } + break; + } + } + return S_OK; +} + +STDAPI GetNumberOfMethods(UINT32 *numCodecs) +{ + *numCodecs = g_NumCodecs; + return S_OK; +} |