Module: wine Branch: master Commit: af6ece97b15650ef309e68ab4d024090fef4f429 URL: http://source.winehq.org/git/wine.git/?a=commit;h=af6ece97b15650ef309e68ab4d...
Author: Tony Wasserka tony.wasserka@freenet.de Date: Fri Aug 21 12:02:10 2009 +0200
windowscodecs: Add IWICStream_InitializeFromMemory implementation.
---
dlls/windowscodecs/stream.c | 193 ++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 191 insertions(+), 2 deletions(-)
diff --git a/dlls/windowscodecs/stream.c b/dlls/windowscodecs/stream.c index b496b31..6e28ae9 100644 --- a/dlls/windowscodecs/stream.c +++ b/dlls/windowscodecs/stream.c @@ -29,6 +29,166 @@ WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
/****************************************** + * StreamOnMemory implementation + * + * Used by IWICStream_InitializeFromMemory + * + */ +typedef struct StreamOnMemory { + const IStreamVtbl *lpVtbl; + LONG ref; +} StreamOnMemory; + +static HRESULT WINAPI StreamOnMemory_QueryInterface(IStream *iface, + REFIID iid, void **ppv) +{ + TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv); + + if (!ppv) return E_INVALIDARG; + + if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IStream, iid) || + IsEqualIID(&IID_ISequentialStream, iid)) + { + *ppv = iface; + IUnknown_AddRef((IUnknown*)*ppv); + return S_OK; + } + else + { + *ppv = NULL; + return E_NOINTERFACE; + } +} + +static ULONG WINAPI StreamOnMemory_AddRef(IStream *iface) +{ + StreamOnMemory *This = (StreamOnMemory*)iface; + ULONG ref = InterlockedIncrement(&This->ref); + + TRACE("(%p) refcount=%u\n", iface, ref); + + return ref; +} + +static ULONG WINAPI StreamOnMemory_Release(IStream *iface) +{ + StreamOnMemory *This = (StreamOnMemory*)iface; + ULONG ref = InterlockedDecrement(&This->ref); + + TRACE("(%p) refcount=%u\n", iface, ref); + + if (ref == 0) { + HeapFree(GetProcessHeap(), 0, This); + } + return ref; +} + +static HRESULT WINAPI StreamOnMemory_Read(IStream *iface, + void *pv, ULONG cb, ULONG *pcbRead) +{ + FIXME("(%p): stub\n", iface); + return E_NOTIMPL; +} + +static HRESULT WINAPI StreamOnMemory_Write(IStream *iface, + void const *pv, ULONG cb, ULONG *pcbWritten) +{ + FIXME("(%p): stub\n", iface); + return E_NOTIMPL; +} + +static HRESULT WINAPI StreamOnMemory_Seek(IStream *iface, + LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition) +{ + FIXME("(%p): stub\n", iface); + return E_NOTIMPL; +} + +/* SetSize isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_SetSize(IStream *iface, + ULARGE_INTEGER libNewSize) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + +/* CopyTo isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_CopyTo(IStream *iface, + IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + +/* Commit isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_Commit(IStream *iface, + DWORD grfCommitFlags) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + +/* Revert isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_Revert(IStream *iface) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + +/* LockRegion isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_LockRegion(IStream *iface, + ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + +/* UnlockRegion isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_UnlockRegion(IStream *iface, + ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + +static HRESULT WINAPI StreamOnMemory_Stat(IStream *iface, + STATSTG *pstatstg, DWORD grfStatFlag) +{ + FIXME("(%p): stub\n", iface); + return E_NOTIMPL; +} + +/* Clone isn't implemented in the native windowscodecs DLL either */ +static HRESULT WINAPI StreamOnMemory_Clone(IStream *iface, + IStream **ppstm) +{ + TRACE("(%p)\n", iface); + return E_NOTIMPL; +} + + +const IStreamVtbl StreamOnMemory_Vtbl = +{ + /*** IUnknown methods ***/ + StreamOnMemory_QueryInterface, + StreamOnMemory_AddRef, + StreamOnMemory_Release, + /*** ISequentialStream methods ***/ + StreamOnMemory_Read, + StreamOnMemory_Write, + /*** IStream methods ***/ + StreamOnMemory_Seek, + StreamOnMemory_SetSize, + StreamOnMemory_CopyTo, + StreamOnMemory_Commit, + StreamOnMemory_Revert, + StreamOnMemory_LockRegion, + StreamOnMemory_UnlockRegion, + StreamOnMemory_Stat, + StreamOnMemory_Clone, +}; + +/****************************************** * IWICStream implementation * */ @@ -209,11 +369,40 @@ static HRESULT WINAPI IWICStreamImpl_InitializeFromFilename(IWICStream *iface, return E_NOTIMPL; }
+/****************************************** + * IWICStream_InitializeFromMemory + * + * Initializes the internal IStream object to retrieve its data from a memory chunk. + * + * PARAMS + * pbBuffer [I] pointer to the memory chunk + * cbBufferSize [I] number of bytes to use from the memory chunk + * + * RETURNS + * SUCCESS: S_OK + * FAILURE: E_INVALIDARG, if pbBuffer is NULL + * E_OUTOFMEMORY, if we run out of memory + * WINCODEC_ERR_WRONGSTATE, if the IStream object has already been initialized before + * + */ static HRESULT WINAPI IWICStreamImpl_InitializeFromMemory(IWICStream *iface, BYTE *pbBuffer, DWORD cbBufferSize) { - FIXME("(%p): stub\n", iface); - return E_NOTIMPL; + IWICStreamImpl *This = (IWICStreamImpl*)iface; + StreamOnMemory *pObject; + TRACE("(%p,%p)\n", iface, pbBuffer); + + if (!pbBuffer) return E_INVALIDARG; + if (This->pStream) return WINCODEC_ERR_WRONGSTATE; + + pObject = HeapAlloc(GetProcessHeap(), 0, sizeof(StreamOnMemory)); + if (!pObject) return E_OUTOFMEMORY; + + pObject->lpVtbl = &StreamOnMemory_Vtbl; + pObject->ref = 1; + + This->pStream = (IStream*)pObject; + return S_OK; }
static HRESULT WINAPI IWICStreamImpl_InitializeFromIStreamRegion(IWICStream *iface,