windowscodecs: Add IWICStream_InitializeFromMemory implementation.
This commit is contained in:
Tony Wasserka
Alexandre Julliard
parent
88a019956e
commit
af6ece97b1
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@ -28,6 +28,166 @@
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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/******************************************
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* StreamOnMemory implementation
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*
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* Used by IWICStream_InitializeFromMemory
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*
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*/
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typedef struct StreamOnMemory {
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const IStreamVtbl *lpVtbl;
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LONG ref;
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} StreamOnMemory;
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static HRESULT WINAPI StreamOnMemory_QueryInterface(IStream *iface,
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REFIID iid, void **ppv)
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{
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IStream, iid) ||
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IsEqualIID(&IID_ISequentialStream, iid))
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{
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*ppv = iface;
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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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else
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{
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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}
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static ULONG WINAPI StreamOnMemory_AddRef(IStream *iface)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI StreamOnMemory_Release(IStream *iface)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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if (ref == 0) {
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static HRESULT WINAPI StreamOnMemory_Read(IStream *iface,
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void *pv, ULONG cb, ULONG *pcbRead)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI StreamOnMemory_Write(IStream *iface,
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void const *pv, ULONG cb, ULONG *pcbWritten)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI StreamOnMemory_Seek(IStream *iface,
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LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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/* SetSize isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_SetSize(IStream *iface,
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ULARGE_INTEGER libNewSize)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* CopyTo isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_CopyTo(IStream *iface,
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IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* Commit isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_Commit(IStream *iface,
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DWORD grfCommitFlags)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* Revert isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_Revert(IStream *iface)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* LockRegion isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_LockRegion(IStream *iface,
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ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* UnlockRegion isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_UnlockRegion(IStream *iface,
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ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI StreamOnMemory_Stat(IStream *iface,
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STATSTG *pstatstg, DWORD grfStatFlag)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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/* Clone isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_Clone(IStream *iface,
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IStream **ppstm)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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const IStreamVtbl StreamOnMemory_Vtbl =
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{
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/*** IUnknown methods ***/
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StreamOnMemory_QueryInterface,
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StreamOnMemory_AddRef,
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StreamOnMemory_Release,
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/*** ISequentialStream methods ***/
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StreamOnMemory_Read,
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StreamOnMemory_Write,
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/*** IStream methods ***/
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StreamOnMemory_Seek,
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StreamOnMemory_SetSize,
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StreamOnMemory_CopyTo,
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StreamOnMemory_Commit,
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StreamOnMemory_Revert,
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StreamOnMemory_LockRegion,
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StreamOnMemory_UnlockRegion,
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StreamOnMemory_Stat,
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StreamOnMemory_Clone,
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};
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/******************************************
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* IWICStream implementation
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*
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@ -209,11 +369,40 @@ static HRESULT WINAPI IWICStreamImpl_InitializeFromFilename(IWICStream *iface,
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return E_NOTIMPL;
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}
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/******************************************
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* IWICStream_InitializeFromMemory
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*
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* Initializes the internal IStream object to retrieve its data from a memory chunk.
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*
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* PARAMS
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* pbBuffer [I] pointer to the memory chunk
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* cbBufferSize [I] number of bytes to use from the memory chunk
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*
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* RETURNS
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* SUCCESS: S_OK
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* FAILURE: E_INVALIDARG, if pbBuffer is NULL
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* E_OUTOFMEMORY, if we run out of memory
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* WINCODEC_ERR_WRONGSTATE, if the IStream object has already been initialized before
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*
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*/
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static HRESULT WINAPI IWICStreamImpl_InitializeFromMemory(IWICStream *iface,
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BYTE *pbBuffer, DWORD cbBufferSize)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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StreamOnMemory *pObject;
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TRACE("(%p,%p)\n", iface, pbBuffer);
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if (!pbBuffer) return E_INVALIDARG;
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if (This->pStream) return WINCODEC_ERR_WRONGSTATE;
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pObject = HeapAlloc(GetProcessHeap(), 0, sizeof(StreamOnMemory));
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if (!pObject) return E_OUTOFMEMORY;
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pObject->lpVtbl = &StreamOnMemory_Vtbl;
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pObject->ref = 1;
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This->pStream = (IStream*)pObject;
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return S_OK;
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}
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static HRESULT WINAPI IWICStreamImpl_InitializeFromIStreamRegion(IWICStream *iface,
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