2 * Copyright 2012 Vincent Povirk for CodeWeavers
3 * Copyright 2012 Dmitry Timoshkov
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #define NONAMELESSUNION
33 #include "wincodecsdk.h"
35 #include "wincodecs_private.h"
37 #include "wine/debug.h"
39 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs
);
41 typedef struct MetadataHandler
{
42 IWICMetadataWriter IWICMetadataWriter_iface
;
44 IWICPersistStream IWICPersistStream_iface
;
45 const MetadataHandlerVtbl
*vtable
;
48 CRITICAL_SECTION lock
;
51 static inline MetadataHandler
*impl_from_IWICMetadataWriter(IWICMetadataWriter
*iface
)
53 return CONTAINING_RECORD(iface
, MetadataHandler
, IWICMetadataWriter_iface
);
56 static inline MetadataHandler
*impl_from_IWICPersistStream(IWICPersistStream
*iface
)
58 return CONTAINING_RECORD(iface
, MetadataHandler
, IWICPersistStream_iface
);
61 static void MetadataHandler_FreeItems(MetadataHandler
*This
)
65 for (i
=0; i
<This
->item_count
; i
++)
67 PropVariantClear(&This
->items
[i
].schema
);
68 PropVariantClear(&This
->items
[i
].id
);
69 PropVariantClear(&This
->items
[i
].value
);
72 HeapFree(GetProcessHeap(), 0, This
->items
);
75 static HRESULT
MetadataHandlerEnum_Create(MetadataHandler
*parent
, DWORD index
,
76 IWICEnumMetadataItem
**ppIEnumMetadataItem
);
78 static HRESULT WINAPI
MetadataHandler_QueryInterface(IWICMetadataWriter
*iface
, REFIID iid
,
81 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
82 TRACE("(%p,%s,%p)\n", iface
, debugstr_guid(iid
), ppv
);
84 if (!ppv
) return E_INVALIDARG
;
86 if (IsEqualIID(&IID_IUnknown
, iid
) ||
87 IsEqualIID(&IID_IWICMetadataReader
, iid
) ||
88 (IsEqualIID(&IID_IWICMetadataWriter
, iid
) && This
->vtable
->is_writer
))
90 *ppv
= &This
->IWICMetadataWriter_iface
;
92 else if (IsEqualIID(&IID_IPersist
, iid
) ||
93 IsEqualIID(&IID_IPersistStream
, iid
) ||
94 IsEqualIID(&IID_IWICPersistStream
, iid
))
96 *ppv
= &This
->IWICPersistStream_iface
;
101 return E_NOINTERFACE
;
104 IUnknown_AddRef((IUnknown
*)*ppv
);
108 static ULONG WINAPI
MetadataHandler_AddRef(IWICMetadataWriter
*iface
)
110 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
111 ULONG ref
= InterlockedIncrement(&This
->ref
);
113 TRACE("(%p) refcount=%u\n", iface
, ref
);
118 static ULONG WINAPI
MetadataHandler_Release(IWICMetadataWriter
*iface
)
120 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
121 ULONG ref
= InterlockedDecrement(&This
->ref
);
123 TRACE("(%p) refcount=%u\n", iface
, ref
);
127 MetadataHandler_FreeItems(This
);
128 This
->lock
.DebugInfo
->Spare
[0] = 0;
129 DeleteCriticalSection(&This
->lock
);
130 HeapFree(GetProcessHeap(), 0, This
);
136 static HRESULT WINAPI
MetadataHandler_GetMetadataHandlerInfo(IWICMetadataWriter
*iface
,
137 IWICMetadataHandlerInfo
**ppIHandler
)
140 IWICComponentInfo
*component_info
;
141 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
143 TRACE("%p,%p\n", iface
, ppIHandler
);
145 hr
= CreateComponentInfo(This
->vtable
->clsid
, &component_info
);
146 if (FAILED(hr
)) return hr
;
148 hr
= IWICComponentInfo_QueryInterface(component_info
, &IID_IWICMetadataHandlerInfo
,
149 (void **)ppIHandler
);
151 IWICComponentInfo_Release(component_info
);
155 static HRESULT WINAPI
MetadataHandler_GetMetadataFormat(IWICMetadataWriter
*iface
,
156 GUID
*pguidMetadataFormat
)
159 IWICMetadataHandlerInfo
*metadata_info
;
161 TRACE("%p,%p\n", iface
, pguidMetadataFormat
);
163 if (!pguidMetadataFormat
) return E_INVALIDARG
;
165 hr
= MetadataHandler_GetMetadataHandlerInfo(iface
, &metadata_info
);
166 if (FAILED(hr
)) return hr
;
168 hr
= IWICMetadataHandlerInfo_GetMetadataFormat(metadata_info
, pguidMetadataFormat
);
169 IWICMetadataHandlerInfo_Release(metadata_info
);
174 static HRESULT WINAPI
MetadataHandler_GetCount(IWICMetadataWriter
*iface
,
177 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
179 TRACE("%p,%p\n", iface
, pcCount
);
181 if (!pcCount
) return E_INVALIDARG
;
183 *pcCount
= This
->item_count
;
187 static HRESULT WINAPI
MetadataHandler_GetValueByIndex(IWICMetadataWriter
*iface
,
188 UINT index
, PROPVARIANT
*schema
, PROPVARIANT
*id
, PROPVARIANT
*value
)
191 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
193 TRACE("%p,%u,%p,%p,%p\n", iface
, index
, schema
, id
, value
);
195 EnterCriticalSection(&This
->lock
);
197 if (index
>= This
->item_count
)
199 LeaveCriticalSection(&This
->lock
);
204 hr
= PropVariantCopy(schema
, &This
->items
[index
].schema
);
206 if (SUCCEEDED(hr
) && id
)
207 hr
= PropVariantCopy(id
, &This
->items
[index
].id
);
209 if (SUCCEEDED(hr
) && value
)
210 hr
= PropVariantCopy(value
, &This
->items
[index
].value
);
212 LeaveCriticalSection(&This
->lock
);
216 static BOOL
get_int_value(const PROPVARIANT
*pv
, LONGLONG
*value
)
234 *value
= pv
->u
.uiVal
;
240 *value
= pv
->u
.ulVal
;
244 *value
= pv
->u
.hVal
.QuadPart
;
247 FIXME("not supported variant type %d\n", pv
->vt
);
253 /* FiXME: Use propsys.PropVariantCompareEx once it's implemented */
254 static int propvar_cmp(const PROPVARIANT
*v1
, const PROPVARIANT
*v2
)
256 LONGLONG value1
, value2
;
258 if (!get_int_value(v1
, &value1
)) return -1;
259 if (!get_int_value(v2
, &value2
)) return -1;
262 if (value1
) return value1
< 0 ? -1 : 1;
266 static HRESULT WINAPI
MetadataHandler_GetValue(IWICMetadataWriter
*iface
,
267 const PROPVARIANT
*schema
, const PROPVARIANT
*id
, PROPVARIANT
*value
)
270 HRESULT hr
= WINCODEC_ERR_PROPERTYNOTFOUND
;
271 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
273 TRACE("(%p,%p,%p,%p)\n", iface
, schema
, id
, value
);
275 if (!id
) return E_INVALIDARG
;
277 EnterCriticalSection(&This
->lock
);
279 for (i
= 0; i
< This
->item_count
; i
++)
281 if (schema
&& This
->items
[i
].schema
.vt
!= VT_EMPTY
)
283 if (propvar_cmp(schema
, &This
->items
[i
].schema
) != 0) continue;
286 if (propvar_cmp(id
, &This
->items
[i
].id
) != 0) continue;
288 hr
= value
? PropVariantCopy(value
, &This
->items
[i
].value
) : S_OK
;
292 LeaveCriticalSection(&This
->lock
);
296 static HRESULT WINAPI
MetadataHandler_GetEnumerator(IWICMetadataWriter
*iface
,
297 IWICEnumMetadataItem
**ppIEnumMetadata
)
299 MetadataHandler
*This
= impl_from_IWICMetadataWriter(iface
);
300 TRACE("(%p,%p)\n", iface
, ppIEnumMetadata
);
301 return MetadataHandlerEnum_Create(This
, 0, ppIEnumMetadata
);
304 static HRESULT WINAPI
MetadataHandler_SetValue(IWICMetadataWriter
*iface
,
305 const PROPVARIANT
*pvarSchema
, const PROPVARIANT
*pvarId
, const PROPVARIANT
*pvarValue
)
307 FIXME("(%p,%p,%p,%p): stub\n", iface
, pvarSchema
, pvarId
, pvarValue
);
311 static HRESULT WINAPI
MetadataHandler_SetValueByIndex(IWICMetadataWriter
*iface
,
312 UINT nIndex
, const PROPVARIANT
*pvarSchema
, const PROPVARIANT
*pvarId
, const PROPVARIANT
*pvarValue
)
314 FIXME("(%p,%u,%p,%p,%p): stub\n", iface
, nIndex
, pvarSchema
, pvarId
, pvarValue
);
318 static HRESULT WINAPI
MetadataHandler_RemoveValue(IWICMetadataWriter
*iface
,
319 const PROPVARIANT
*pvarSchema
, const PROPVARIANT
*pvarId
)
321 FIXME("(%p,%p,%p): stub\n", iface
, pvarSchema
, pvarId
);
325 static HRESULT WINAPI
MetadataHandler_RemoveValueByIndex(IWICMetadataWriter
*iface
,
328 FIXME("(%p,%u): stub\n", iface
, nIndex
);
332 static const IWICMetadataWriterVtbl MetadataHandler_Vtbl
= {
333 MetadataHandler_QueryInterface
,
334 MetadataHandler_AddRef
,
335 MetadataHandler_Release
,
336 MetadataHandler_GetMetadataFormat
,
337 MetadataHandler_GetMetadataHandlerInfo
,
338 MetadataHandler_GetCount
,
339 MetadataHandler_GetValueByIndex
,
340 MetadataHandler_GetValue
,
341 MetadataHandler_GetEnumerator
,
342 MetadataHandler_SetValue
,
343 MetadataHandler_SetValueByIndex
,
344 MetadataHandler_RemoveValue
,
345 MetadataHandler_RemoveValueByIndex
348 static HRESULT WINAPI
MetadataHandler_PersistStream_QueryInterface(IWICPersistStream
*iface
,
349 REFIID iid
, void **ppv
)
351 MetadataHandler
*This
= impl_from_IWICPersistStream(iface
);
352 return IWICMetadataWriter_QueryInterface(&This
->IWICMetadataWriter_iface
, iid
, ppv
);
355 static ULONG WINAPI
MetadataHandler_PersistStream_AddRef(IWICPersistStream
*iface
)
357 MetadataHandler
*This
= impl_from_IWICPersistStream(iface
);
358 return IWICMetadataWriter_AddRef(&This
->IWICMetadataWriter_iface
);
361 static ULONG WINAPI
MetadataHandler_PersistStream_Release(IWICPersistStream
*iface
)
363 MetadataHandler
*This
= impl_from_IWICPersistStream(iface
);
364 return IWICMetadataWriter_Release(&This
->IWICMetadataWriter_iface
);
367 static HRESULT WINAPI
MetadataHandler_GetClassID(IWICPersistStream
*iface
,
370 FIXME("(%p,%p): stub\n", iface
, pClassID
);
374 static HRESULT WINAPI
MetadataHandler_IsDirty(IWICPersistStream
*iface
)
376 FIXME("(%p): stub\n", iface
);
380 static HRESULT WINAPI
MetadataHandler_Load(IWICPersistStream
*iface
,
383 MetadataHandler
*This
= impl_from_IWICPersistStream(iface
);
384 TRACE("(%p,%p)\n", iface
, pStm
);
385 return IWICPersistStream_LoadEx(&This
->IWICPersistStream_iface
, pStm
, NULL
, WICPersistOptionsDefault
);
388 static HRESULT WINAPI
MetadataHandler_Save(IWICPersistStream
*iface
,
389 IStream
*pStm
, BOOL fClearDirty
)
391 FIXME("(%p,%p,%i): stub\n", iface
, pStm
, fClearDirty
);
395 static HRESULT WINAPI
MetadataHandler_GetSizeMax(IWICPersistStream
*iface
,
396 ULARGE_INTEGER
*pcbSize
)
398 FIXME("(%p,%p): stub\n", iface
, pcbSize
);
402 static HRESULT WINAPI
MetadataHandler_LoadEx(IWICPersistStream
*iface
,
403 IStream
*pIStream
, const GUID
*pguidPreferredVendor
, DWORD dwPersistOptions
)
405 MetadataHandler
*This
= impl_from_IWICPersistStream(iface
);
407 MetadataItem
*new_items
=NULL
;
410 TRACE("(%p,%p,%s,%x)\n", iface
, pIStream
, debugstr_guid(pguidPreferredVendor
), dwPersistOptions
);
412 EnterCriticalSection(&This
->lock
);
414 hr
= This
->vtable
->fnLoad(pIStream
, pguidPreferredVendor
, dwPersistOptions
,
415 &new_items
, &item_count
);
419 MetadataHandler_FreeItems(This
);
420 This
->items
= new_items
;
421 This
->item_count
= item_count
;
424 LeaveCriticalSection(&This
->lock
);
429 static HRESULT WINAPI
MetadataHandler_SaveEx(IWICPersistStream
*iface
,
430 IStream
*pIStream
, DWORD dwPersistOptions
, BOOL fClearDirty
)
432 FIXME("(%p,%p,%x,%i): stub\n", iface
, pIStream
, dwPersistOptions
, fClearDirty
);
436 static const IWICPersistStreamVtbl MetadataHandler_PersistStream_Vtbl
= {
437 MetadataHandler_PersistStream_QueryInterface
,
438 MetadataHandler_PersistStream_AddRef
,
439 MetadataHandler_PersistStream_Release
,
440 MetadataHandler_GetClassID
,
441 MetadataHandler_IsDirty
,
442 MetadataHandler_Load
,
443 MetadataHandler_Save
,
444 MetadataHandler_GetSizeMax
,
445 MetadataHandler_LoadEx
,
446 MetadataHandler_SaveEx
449 static HRESULT
MetadataReader_Create(const MetadataHandlerVtbl
*vtable
, IUnknown
*pUnkOuter
, REFIID iid
, void** ppv
)
451 MetadataHandler
*This
;
454 TRACE("%s\n", debugstr_guid(vtable
->clsid
));
458 if (pUnkOuter
) return CLASS_E_NOAGGREGATION
;
460 This
= HeapAlloc(GetProcessHeap(), 0, sizeof(MetadataHandler
));
461 if (!This
) return E_OUTOFMEMORY
;
463 This
->IWICMetadataWriter_iface
.lpVtbl
= &MetadataHandler_Vtbl
;
464 This
->IWICPersistStream_iface
.lpVtbl
= &MetadataHandler_PersistStream_Vtbl
;
466 This
->vtable
= vtable
;
468 This
->item_count
= 0;
470 InitializeCriticalSection(&This
->lock
);
471 This
->lock
.DebugInfo
->Spare
[0] = (DWORD_PTR
)(__FILE__
": MetadataHandler.lock");
473 hr
= IWICMetadataWriter_QueryInterface(&This
->IWICMetadataWriter_iface
, iid
, ppv
);
475 IWICMetadataWriter_Release(&This
->IWICMetadataWriter_iface
);
480 typedef struct MetadataHandlerEnum
{
481 IWICEnumMetadataItem IWICEnumMetadataItem_iface
;
483 MetadataHandler
*parent
;
485 } MetadataHandlerEnum
;
487 static inline MetadataHandlerEnum
*impl_from_IWICEnumMetadataItem(IWICEnumMetadataItem
*iface
)
489 return CONTAINING_RECORD(iface
, MetadataHandlerEnum
, IWICEnumMetadataItem_iface
);
492 static HRESULT WINAPI
MetadataHandlerEnum_QueryInterface(IWICEnumMetadataItem
*iface
, REFIID iid
,
495 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
496 TRACE("(%p,%s,%p)\n", iface
, debugstr_guid(iid
), ppv
);
498 if (!ppv
) return E_INVALIDARG
;
500 if (IsEqualIID(&IID_IUnknown
, iid
) ||
501 IsEqualIID(&IID_IWICEnumMetadataItem
, iid
))
503 *ppv
= &This
->IWICEnumMetadataItem_iface
;
508 return E_NOINTERFACE
;
511 IUnknown_AddRef((IUnknown
*)*ppv
);
515 static ULONG WINAPI
MetadataHandlerEnum_AddRef(IWICEnumMetadataItem
*iface
)
517 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
518 ULONG ref
= InterlockedIncrement(&This
->ref
);
520 TRACE("(%p) refcount=%u\n", iface
, ref
);
525 static ULONG WINAPI
MetadataHandlerEnum_Release(IWICEnumMetadataItem
*iface
)
527 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
528 ULONG ref
= InterlockedDecrement(&This
->ref
);
530 TRACE("(%p) refcount=%u\n", iface
, ref
);
534 IWICMetadataWriter_Release(&This
->parent
->IWICMetadataWriter_iface
);
535 HeapFree(GetProcessHeap(), 0, This
);
541 static HRESULT WINAPI
MetadataHandlerEnum_Next(IWICEnumMetadataItem
*iface
,
542 ULONG celt
, PROPVARIANT
*rgeltSchema
, PROPVARIANT
*rgeltId
,
543 PROPVARIANT
*rgeltValue
, ULONG
*pceltFetched
)
545 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
550 TRACE("(%p,%i)\n", iface
, celt
);
552 EnterCriticalSection(&This
->parent
->lock
);
554 if (This
->index
>= This
->parent
->item_count
)
557 LeaveCriticalSection(&This
->parent
->lock
);
561 new_index
= min(This
->parent
->item_count
, This
->index
+ celt
);
562 *pceltFetched
= new_index
- This
->index
;
566 for (i
=0; SUCCEEDED(hr
) && i
< *pceltFetched
; i
++)
567 hr
= PropVariantCopy(&rgeltSchema
[i
], &This
->parent
->items
[i
+This
->index
].schema
);
570 for (i
=0; SUCCEEDED(hr
) && i
< *pceltFetched
; i
++)
571 hr
= PropVariantCopy(&rgeltId
[i
], &This
->parent
->items
[i
+This
->index
].id
);
575 for (i
=0; SUCCEEDED(hr
) && i
< *pceltFetched
; i
++)
576 hr
= PropVariantCopy(&rgeltValue
[i
], &This
->parent
->items
[i
+This
->index
].value
);
581 This
->index
= new_index
;
584 LeaveCriticalSection(&This
->parent
->lock
);
589 static HRESULT WINAPI
MetadataHandlerEnum_Skip(IWICEnumMetadataItem
*iface
,
592 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
594 EnterCriticalSection(&This
->parent
->lock
);
598 LeaveCriticalSection(&This
->parent
->lock
);
603 static HRESULT WINAPI
MetadataHandlerEnum_Reset(IWICEnumMetadataItem
*iface
)
605 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
607 EnterCriticalSection(&This
->parent
->lock
);
611 LeaveCriticalSection(&This
->parent
->lock
);
616 static HRESULT WINAPI
MetadataHandlerEnum_Clone(IWICEnumMetadataItem
*iface
,
617 IWICEnumMetadataItem
**ppIEnumMetadataItem
)
619 MetadataHandlerEnum
*This
= impl_from_IWICEnumMetadataItem(iface
);
622 EnterCriticalSection(&This
->parent
->lock
);
624 hr
= MetadataHandlerEnum_Create(This
->parent
, This
->index
, ppIEnumMetadataItem
);
626 LeaveCriticalSection(&This
->parent
->lock
);
631 static const IWICEnumMetadataItemVtbl MetadataHandlerEnum_Vtbl
= {
632 MetadataHandlerEnum_QueryInterface
,
633 MetadataHandlerEnum_AddRef
,
634 MetadataHandlerEnum_Release
,
635 MetadataHandlerEnum_Next
,
636 MetadataHandlerEnum_Skip
,
637 MetadataHandlerEnum_Reset
,
638 MetadataHandlerEnum_Clone
641 static HRESULT
MetadataHandlerEnum_Create(MetadataHandler
*parent
, DWORD index
,
642 IWICEnumMetadataItem
**ppIEnumMetadataItem
)
644 MetadataHandlerEnum
*This
;
646 if (!ppIEnumMetadataItem
) return E_INVALIDARG
;
648 *ppIEnumMetadataItem
= NULL
;
650 This
= HeapAlloc(GetProcessHeap(), 0, sizeof(MetadataHandlerEnum
));
651 if (!This
) return E_OUTOFMEMORY
;
653 IWICMetadataWriter_AddRef(&parent
->IWICMetadataWriter_iface
);
655 This
->IWICEnumMetadataItem_iface
.lpVtbl
= &MetadataHandlerEnum_Vtbl
;
657 This
->parent
= parent
;
660 *ppIEnumMetadataItem
= &This
->IWICEnumMetadataItem_iface
;
665 static HRESULT
LoadUnknownMetadata(IStream
*input
, const GUID
*preferred_vendor
,
666 DWORD persist_options
, MetadataItem
**items
, DWORD
*item_count
)
669 MetadataItem
*result
;
676 hr
= IStream_Stat(input
, &stat
, STATFLAG_NONAME
);
680 data
= HeapAlloc(GetProcessHeap(), 0, stat
.cbSize
.QuadPart
);
681 if (!data
) return E_OUTOFMEMORY
;
683 hr
= IStream_Read(input
, data
, stat
.cbSize
.QuadPart
, &bytesread
);
686 HeapFree(GetProcessHeap(), 0, data
);
690 result
= HeapAlloc(GetProcessHeap(), 0, sizeof(MetadataItem
));
693 HeapFree(GetProcessHeap(), 0, data
);
694 return E_OUTOFMEMORY
;
697 PropVariantInit(&result
[0].schema
);
698 PropVariantInit(&result
[0].id
);
699 PropVariantInit(&result
[0].value
);
701 result
[0].value
.vt
= VT_BLOB
;
702 result
[0].value
.u
.blob
.cbSize
= bytesread
;
703 result
[0].value
.u
.blob
.pBlobData
= data
;
711 static const MetadataHandlerVtbl UnknownMetadataReader_Vtbl
= {
713 &CLSID_WICUnknownMetadataReader
,
717 HRESULT
UnknownMetadataReader_CreateInstance(IUnknown
*pUnkOuter
, REFIID iid
, void** ppv
)
719 return MetadataReader_Create(&UnknownMetadataReader_Vtbl
, pUnkOuter
, iid
, ppv
);
722 #define SWAP_USHORT(x) do { if (!native_byte_order) (x) = RtlUshortByteSwap(x); } while(0)
723 #define SWAP_ULONG(x) do { if (!native_byte_order) (x) = RtlUlongByteSwap(x); } while(0)
724 #define SWAP_ULONGLONG(x) do { if (!native_byte_order) (x) = RtlUlonglongByteSwap(x); } while(0)
738 #define IFD_RATIONAL 5
740 #define IFD_UNDEFINED 7
743 #define IFD_SRATIONAL 10
745 #define IFD_DOUBLE 12
748 static int tag_to_vt(SHORT tag
)
750 static const int tag2vt
[] =
753 VT_UI1
, /* IFD_BYTE 1 */
754 VT_LPSTR
, /* IFD_ASCII 2 */
755 VT_UI2
, /* IFD_SHORT 3 */
756 VT_UI4
, /* IFD_LONG 4 */
757 VT_UI8
, /* IFD_RATIONAL 5 */
758 VT_I1
, /* IFD_SBYTE 6 */
759 VT_BLOB
, /* IFD_UNDEFINED 7 */
760 VT_I2
, /* IFD_SSHORT 8 */
761 VT_I4
, /* IFD_SLONG 9 */
762 VT_I8
, /* IFD_SRATIONAL 10 */
763 VT_R4
, /* IFD_FLOAT 11 */
764 VT_R8
, /* IFD_DOUBLE 12 */
765 VT_BLOB
, /* IFD_IFD 13 */
767 return (tag
> 0 && tag
<= 13) ? tag2vt
[tag
] : VT_BLOB
;
770 static HRESULT
load_IFD_entry(IStream
*input
, const struct IFD_entry
*entry
,
771 MetadataItem
*item
, BOOL native_byte_order
)
773 ULONG count
, value
, i
;
778 item
->schema
.vt
= VT_EMPTY
;
779 item
->id
.vt
= VT_UI2
;
780 item
->id
.u
.uiVal
= entry
->id
;
781 SWAP_USHORT(item
->id
.u
.uiVal
);
783 count
= entry
->count
;
787 item
->value
.vt
= tag_to_vt(type
);
788 value
= entry
->value
;
795 if (!count
) count
= 1;
799 const BYTE
*data
= (const BYTE
*)&entry
->value
;
802 item
->value
.u
.bVal
= data
[0];
805 item
->value
.vt
|= VT_VECTOR
;
806 item
->value
.u
.caub
.cElems
= count
;
807 item
->value
.u
.caub
.pElems
= HeapAlloc(GetProcessHeap(), 0, count
);
808 memcpy(item
->value
.u
.caub
.pElems
, data
, count
);
813 item
->value
.vt
|= VT_VECTOR
;
814 item
->value
.u
.caub
.cElems
= count
;
815 item
->value
.u
.caub
.pElems
= HeapAlloc(GetProcessHeap(), 0, count
);
816 if (!item
->value
.u
.caub
.pElems
) return E_OUTOFMEMORY
;
818 pos
.QuadPart
= value
;
819 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
822 HeapFree(GetProcessHeap(), 0, item
->value
.u
.caub
.pElems
);
825 hr
= IStream_Read(input
, item
->value
.u
.caub
.pElems
, count
, NULL
);
828 HeapFree(GetProcessHeap(), 0, item
->value
.u
.caub
.pElems
);
834 if (!count
) count
= 1;
838 const SHORT
*data
= (const SHORT
*)&entry
->value
;
842 item
->value
.u
.uiVal
= data
[0];
843 SWAP_USHORT(item
->value
.u
.uiVal
);
847 item
->value
.vt
|= VT_VECTOR
;
848 item
->value
.u
.caui
.cElems
= count
;
849 item
->value
.u
.caui
.pElems
= HeapAlloc(GetProcessHeap(), 0, count
* 2);
850 memcpy(item
->value
.u
.caui
.pElems
, data
, count
* 2);
851 for (i
= 0; i
< count
; i
++)
852 SWAP_USHORT(item
->value
.u
.caui
.pElems
[i
]);
857 item
->value
.vt
|= VT_VECTOR
;
858 item
->value
.u
.caui
.cElems
= count
;
859 item
->value
.u
.caui
.pElems
= HeapAlloc(GetProcessHeap(), 0, count
* 2);
860 if (!item
->value
.u
.caui
.pElems
) return E_OUTOFMEMORY
;
862 pos
.QuadPart
= value
;
863 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
866 HeapFree(GetProcessHeap(), 0, item
->value
.u
.caui
.pElems
);
869 hr
= IStream_Read(input
, item
->value
.u
.caui
.pElems
, count
* 2, NULL
);
872 HeapFree(GetProcessHeap(), 0, item
->value
.u
.caui
.pElems
);
875 for (i
= 0; i
< count
; i
++)
876 SWAP_USHORT(item
->value
.u
.caui
.pElems
[i
]);
881 if (!count
) count
= 1;
885 item
->value
.u
.ulVal
= value
;
889 item
->value
.vt
|= VT_VECTOR
;
890 item
->value
.u
.caul
.cElems
= count
;
891 item
->value
.u
.caul
.pElems
= HeapAlloc(GetProcessHeap(), 0, count
* 4);
892 if (!item
->value
.u
.caul
.pElems
) return E_OUTOFMEMORY
;
894 pos
.QuadPart
= value
;
895 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
898 HeapFree(GetProcessHeap(), 0, item
->value
.u
.caul
.pElems
);
901 hr
= IStream_Read(input
, item
->value
.u
.caul
.pElems
, count
* 4, NULL
);
904 HeapFree(GetProcessHeap(), 0, item
->value
.u
.caul
.pElems
);
907 for (i
= 0; i
< count
; i
++)
908 SWAP_ULONG(item
->value
.u
.caul
.pElems
[i
]);
915 FIXME("IFD field type %d, count 0\n", type
);
916 item
->value
.vt
= VT_EMPTY
;
924 pos
.QuadPart
= value
;
925 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
926 if (FAILED(hr
)) return hr
;
928 hr
= IStream_Read(input
, &ull
, sizeof(ull
), NULL
);
929 if (FAILED(hr
)) return hr
;
931 item
->value
.u
.uhVal
.QuadPart
= ull
;
933 if (type
== IFD_DOUBLE
)
934 SWAP_ULONGLONG(item
->value
.u
.uhVal
.QuadPart
);
937 SWAP_ULONG(item
->value
.u
.uhVal
.u
.LowPart
);
938 SWAP_ULONG(item
->value
.u
.uhVal
.u
.HighPart
);
944 item
->value
.vt
|= VT_VECTOR
;
945 item
->value
.u
.cauh
.cElems
= count
;
946 item
->value
.u
.cauh
.pElems
= HeapAlloc(GetProcessHeap(), 0, count
* 8);
947 if (!item
->value
.u
.cauh
.pElems
) return E_OUTOFMEMORY
;
949 pos
.QuadPart
= value
;
950 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
953 HeapFree(GetProcessHeap(), 0, item
->value
.u
.cauh
.pElems
);
956 hr
= IStream_Read(input
, item
->value
.u
.cauh
.pElems
, count
* 8, NULL
);
959 HeapFree(GetProcessHeap(), 0, item
->value
.u
.cauh
.pElems
);
962 for (i
= 0; i
< count
; i
++)
964 if (type
== IFD_DOUBLE
)
965 SWAP_ULONGLONG(item
->value
.u
.cauh
.pElems
[i
].QuadPart
);
968 SWAP_ULONG(item
->value
.u
.cauh
.pElems
[i
].u
.LowPart
);
969 SWAP_ULONG(item
->value
.u
.cauh
.pElems
[i
].u
.HighPart
);
975 item
->value
.u
.pszVal
= HeapAlloc(GetProcessHeap(), 0, count
+ 1);
976 if (!item
->value
.u
.pszVal
) return E_OUTOFMEMORY
;
980 const char *data
= (const char *)&entry
->value
;
981 memcpy(item
->value
.u
.pszVal
, data
, count
);
982 item
->value
.u
.pszVal
[count
] = 0;
986 pos
.QuadPart
= value
;
987 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
990 HeapFree(GetProcessHeap(), 0, item
->value
.u
.pszVal
);
993 hr
= IStream_Read(input
, item
->value
.u
.pszVal
, count
, NULL
);
996 HeapFree(GetProcessHeap(), 0, item
->value
.u
.pszVal
);
999 item
->value
.u
.pszVal
[count
] = 0;
1004 FIXME("IFD field type %d, count 0\n", type
);
1005 item
->value
.vt
= VT_EMPTY
;
1009 item
->value
.u
.blob
.pBlobData
= HeapAlloc(GetProcessHeap(), 0, count
);
1010 if (!item
->value
.u
.blob
.pBlobData
) return E_OUTOFMEMORY
;
1012 item
->value
.u
.blob
.cbSize
= count
;
1016 const char *data
= (const char *)&entry
->value
;
1017 memcpy(item
->value
.u
.blob
.pBlobData
, data
, count
);
1021 pos
.QuadPart
= value
;
1022 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
1025 HeapFree(GetProcessHeap(), 0, item
->value
.u
.blob
.pBlobData
);
1028 hr
= IStream_Read(input
, item
->value
.u
.blob
.pBlobData
, count
, NULL
);
1031 HeapFree(GetProcessHeap(), 0, item
->value
.u
.blob
.pBlobData
);
1036 FIXME("loading field of type %d, count %u is not implemented\n", type
, count
);
1042 static HRESULT
LoadIfdMetadata(IStream
*input
, const GUID
*preferred_vendor
,
1043 DWORD persist_options
, MetadataItem
**items
, DWORD
*item_count
)
1046 MetadataItem
*result
;
1048 struct IFD_entry
*entry
;
1049 BOOL native_byte_order
= TRUE
;
1053 #ifdef WORDS_BIGENDIAN
1054 if (persist_options
& WICPersistOptionsLittleEndian
)
1056 if (persist_options
& WICPersistOptionsBigEndian
)
1058 native_byte_order
= FALSE
;
1060 hr
= IStream_Read(input
, &count
, sizeof(count
), NULL
);
1061 if (FAILED(hr
)) return hr
;
1065 entry
= HeapAlloc(GetProcessHeap(), 0, count
* sizeof(*entry
));
1066 if (!entry
) return E_OUTOFMEMORY
;
1068 hr
= IStream_Read(input
, entry
, count
* sizeof(*entry
), NULL
);
1071 HeapFree(GetProcessHeap(), 0, entry
);
1075 /* limit number of IFDs to 4096 to avoid infinite loop */
1076 for (i
= 0; i
< 4096; i
++)
1078 ULONG next_ifd_offset
;
1080 USHORT next_ifd_count
;
1082 hr
= IStream_Read(input
, &next_ifd_offset
, sizeof(next_ifd_offset
), NULL
);
1083 if (FAILED(hr
)) break;
1085 SWAP_ULONG(next_ifd_offset
);
1086 if (!next_ifd_offset
) break;
1088 pos
.QuadPart
= next_ifd_offset
;
1089 hr
= IStream_Seek(input
, pos
, SEEK_SET
, NULL
);
1090 if (FAILED(hr
)) break;
1092 hr
= IStream_Read(input
, &next_ifd_count
, sizeof(next_ifd_count
), NULL
);
1093 if (FAILED(hr
)) break;
1095 SWAP_USHORT(next_ifd_count
);
1097 pos
.QuadPart
= next_ifd_count
* sizeof(*entry
);
1098 hr
= IStream_Seek(input
, pos
, SEEK_CUR
, NULL
);
1099 if (FAILED(hr
)) break;
1102 if (FAILED(hr
) || i
== 4096)
1104 HeapFree(GetProcessHeap(), 0, entry
);
1105 return WINCODEC_ERR_BADMETADATAHEADER
;
1108 result
= HeapAlloc(GetProcessHeap(), 0, count
* sizeof(*result
));
1111 HeapFree(GetProcessHeap(), 0, entry
);
1112 return E_OUTOFMEMORY
;
1115 for (i
= 0; i
< count
; i
++)
1117 hr
= load_IFD_entry(input
, &entry
[i
], &result
[i
], native_byte_order
);
1120 HeapFree(GetProcessHeap(), 0, entry
);
1121 HeapFree(GetProcessHeap(), 0, result
);
1126 HeapFree(GetProcessHeap(), 0, entry
);
1129 *item_count
= count
;
1134 static const MetadataHandlerVtbl IfdMetadataReader_Vtbl
= {
1136 &CLSID_WICIfdMetadataReader
,
1140 HRESULT
IfdMetadataReader_CreateInstance(IUnknown
*pUnkOuter
, REFIID iid
, void **ppv
)
1142 return MetadataReader_Create(&IfdMetadataReader_Vtbl
, pUnkOuter
, iid
, ppv
);