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