| /* |
| * Copyright 2016 Andrew Eikum for CodeWeavers |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| */ |
| |
| #include "config.h" |
| |
| #include <stdarg.h> |
| |
| #define COBJMACROS |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "objbase.h" |
| |
| #include "wincodecs_private.h" |
| |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(wincodecs); |
| |
| typedef struct { |
| IWICMetadataQueryReader IWICMetadataQueryReader_iface; |
| |
| LONG ref; |
| |
| IWICMetadataBlockReader *block; |
| } QueryReader; |
| |
| static inline QueryReader *impl_from_IWICMetadataQueryReader(IWICMetadataQueryReader *iface) |
| { |
| return CONTAINING_RECORD(iface, QueryReader, IWICMetadataQueryReader_iface); |
| } |
| |
| static HRESULT WINAPI mqr_QueryInterface(IWICMetadataQueryReader *iface, REFIID riid, |
| void **ppvObject) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| |
| TRACE("(%p,%s,%p)\n", This, debugstr_guid(riid), ppvObject); |
| |
| if (IsEqualGUID(riid, &IID_IUnknown) || |
| IsEqualGUID(riid, &IID_IWICMetadataQueryReader)) |
| *ppvObject = &This->IWICMetadataQueryReader_iface; |
| else |
| *ppvObject = NULL; |
| |
| if (*ppvObject) |
| { |
| IUnknown_AddRef((IUnknown*)*ppvObject); |
| return S_OK; |
| } |
| |
| return E_NOINTERFACE; |
| } |
| |
| static ULONG WINAPI mqr_AddRef(IWICMetadataQueryReader *iface) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| ULONG ref = InterlockedIncrement(&This->ref); |
| TRACE("(%p) refcount=%u\n", This, ref); |
| return ref; |
| } |
| |
| static ULONG WINAPI mqr_Release(IWICMetadataQueryReader *iface) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| ULONG ref = InterlockedDecrement(&This->ref); |
| TRACE("(%p) refcount=%u\n", This, ref); |
| if (!ref) |
| { |
| IWICMetadataBlockReader_Release(This->block); |
| HeapFree(GetProcessHeap(), 0, This); |
| } |
| return ref; |
| } |
| |
| static HRESULT WINAPI mqr_GetContainerFormat(IWICMetadataQueryReader *iface, |
| GUID *pguidContainerFormat) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| FIXME("(%p,%p)\n", This, pguidContainerFormat); |
| return E_NOTIMPL; |
| } |
| |
| static HRESULT WINAPI mqr_GetLocation(IWICMetadataQueryReader *iface, |
| UINT cchMaxLength, WCHAR *wzNamespace, UINT *pcchActualLength) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| FIXME("(%p,%u,%p,%p)\n", This, cchMaxLength, wzNamespace, pcchActualLength); |
| return E_NOTIMPL; |
| } |
| |
| static HRESULT WINAPI mqr_GetMetadataByName(IWICMetadataQueryReader *iface, |
| LPCWSTR wzName, PROPVARIANT *pvarValue) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| FIXME("(%p,%s,%p)\n", This, wine_dbgstr_w(wzName), pvarValue); |
| return E_NOTIMPL; |
| } |
| |
| static HRESULT WINAPI mqr_GetEnumerator(IWICMetadataQueryReader *iface, |
| IEnumString **ppIEnumString) |
| { |
| QueryReader *This = impl_from_IWICMetadataQueryReader(iface); |
| FIXME("(%p,%p)\n", This, ppIEnumString); |
| return E_NOTIMPL; |
| } |
| |
| static IWICMetadataQueryReaderVtbl mqr_vtbl = { |
| mqr_QueryInterface, |
| mqr_AddRef, |
| mqr_Release, |
| mqr_GetContainerFormat, |
| mqr_GetLocation, |
| mqr_GetMetadataByName, |
| mqr_GetEnumerator |
| }; |
| |
| HRESULT MetadataQueryReader_CreateInstance(IWICMetadataBlockReader *mbr, IWICMetadataQueryReader **out) |
| { |
| QueryReader *obj; |
| |
| obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*obj)); |
| if (!obj) |
| return E_OUTOFMEMORY; |
| |
| obj->IWICMetadataQueryReader_iface.lpVtbl = &mqr_vtbl; |
| obj->ref = 1; |
| |
| IWICMetadataBlockReader_AddRef(mbr); |
| obj->block = mbr; |
| |
| *out = &obj->IWICMetadataQueryReader_iface; |
| |
| return S_OK; |
| } |