[3/4] windowscodecs: Add WICIfdMetadataReader stub implementation. Resend.

[Dmitry Timoshkov]

---
 dlls/windowscodecs/clsfactory.c        |    1 +
 dlls/windowscodecs/metadatahandler.c   |   24 +++++++++++++++++++++++-
 dlls/windowscodecs/wincodecs_private.h |    3 +--
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/dlls/windowscodecs/clsfactory.c b/dlls/windowscodecs/clsfactory.c
index e55ce0c..40c8df3 100644
--- a/dlls/windowscodecs/clsfactory.c
+++ b/dlls/windowscodecs/clsfactory.c
@@ -60,6 +60,7 @@ static classinfo wic_classes[] = {
     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
+    {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
     {0}};
 
 typedef struct {
diff --git a/dlls/windowscodecs/metadatahandler.c b/dlls/windowscodecs/metadatahandler.c
index da70b1c..a4dc174 100644
--- a/dlls/windowscodecs/metadatahandler.c
+++ b/dlls/windowscodecs/metadatahandler.c
@@ -325,7 +325,7 @@ static const IWICPersistStreamVtbl MetadataHandler_PersistStream_Vtbl = {
     MetadataHandler_SaveEx
 };
 
-HRESULT MetadataReader_Create(const MetadataHandlerVtbl *vtable, IUnknown *pUnkOuter, REFIID iid, void** ppv)
+static HRESULT MetadataReader_Create(const MetadataHandlerVtbl *vtable, IUnknown *pUnkOuter, REFIID iid, void** ppv)
 {
     MetadataHandler *This;
     HRESULT hr;
@@ -597,3 +597,25 @@ HRESULT UnknownMetadataReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, vo
 {
     return MetadataReader_Create(&UnknownMetadataReader_Vtbl, pUnkOuter, iid, ppv);
 }
+
+static HRESULT LoadIfdMetadata(IStream *input, const GUID *preferred_vendor,
+    DWORD persist_options, MetadataItem **items, DWORD *item_count)
+{
+    FIXME("stub\n");
+
+    *items = NULL;
+    *item_count = 0;
+
+    return S_OK;
+}
+
+static const MetadataHandlerVtbl IfdMetadataReader_Vtbl = {
+    0,
+    &CLSID_WICIfdMetadataReader,
+    LoadIfdMetadata
+};
+
+HRESULT IfdMetadataReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppv)
+{
+    return MetadataReader_Create(&IfdMetadataReader_Vtbl, pUnkOuter, iid, ppv);
+}
diff --git a/dlls/windowscodecs/wincodecs_private.h b/dlls/windowscodecs/wincodecs_private.h
index 5c21afc..92fa7ef 100644
--- a/dlls/windowscodecs/wincodecs_private.h
+++ b/dlls/windowscodecs/wincodecs_private.h
@@ -84,8 +84,7 @@ typedef struct _MetadataHandlerVtbl
         ULARGE_INTEGER *size);
 } MetadataHandlerVtbl;
 
-extern HRESULT MetadataReader_Create(const MetadataHandlerVtbl *vtable, IUnknown *pUnkOuter, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
-
 extern HRESULT UnknownMetadataReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
+extern HRESULT IfdMetadataReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 
 #endif /* WINCODECS_PRIVATE_H */
-- 
1.7.10.1