jscript: Don't use DISPPARAMS for internal arguments.
[wine] / dlls / windowscodecs / imgfactory.c
1 /*
2  * Copyright 2009 Vincent Povirk for CodeWeavers
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17  */
18
19 #include "config.h"
20
21 #include <stdarg.h>
22
23 #define COBJMACROS
24
25 #include "windef.h"
26 #include "winbase.h"
27 #include "winreg.h"
28 #include "objbase.h"
29 #include "shellapi.h"
30 #include "wincodec.h"
31 #include "wincodecsdk.h"
32
33 #include "wincodecs_private.h"
34
35 #include "wine/debug.h"
36
37 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
38
39 typedef struct {
40     IWICComponentFactory IWICComponentFactory_iface;
41     LONG ref;
42 } ComponentFactory;
43
44 static inline ComponentFactory *impl_from_IWICComponentFactory(IWICComponentFactory *iface)
45 {
46     return CONTAINING_RECORD(iface, ComponentFactory, IWICComponentFactory_iface);
47 }
48
49 static HRESULT WINAPI ComponentFactory_QueryInterface(IWICComponentFactory *iface, REFIID iid,
50     void **ppv)
51 {
52     ComponentFactory *This = impl_from_IWICComponentFactory(iface);
53     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
54
55     if (!ppv) return E_INVALIDARG;
56
57     if (IsEqualIID(&IID_IUnknown, iid) ||
58         IsEqualIID(&IID_IWICImagingFactory, iid) ||
59         IsEqualIID(&IID_IWICComponentFactory, iid))
60     {
61         *ppv = This;
62     }
63     else
64     {
65         *ppv = NULL;
66         return E_NOINTERFACE;
67     }
68
69     IUnknown_AddRef((IUnknown*)*ppv);
70     return S_OK;
71 }
72
73 static ULONG WINAPI ComponentFactory_AddRef(IWICComponentFactory *iface)
74 {
75     ComponentFactory *This = impl_from_IWICComponentFactory(iface);
76     ULONG ref = InterlockedIncrement(&This->ref);
77
78     TRACE("(%p) refcount=%u\n", iface, ref);
79
80     return ref;
81 }
82
83 static ULONG WINAPI ComponentFactory_Release(IWICComponentFactory *iface)
84 {
85     ComponentFactory *This = impl_from_IWICComponentFactory(iface);
86     ULONG ref = InterlockedDecrement(&This->ref);
87
88     TRACE("(%p) refcount=%u\n", iface, ref);
89
90     if (ref == 0)
91         HeapFree(GetProcessHeap(), 0, This);
92
93     return ref;
94 }
95
96 static HRESULT WINAPI ComponentFactory_CreateDecoderFromFilename(
97     IWICComponentFactory *iface, LPCWSTR wzFilename, const GUID *pguidVendor,
98     DWORD dwDesiredAccess, WICDecodeOptions metadataOptions,
99     IWICBitmapDecoder **ppIDecoder)
100 {
101     IWICStream *stream;
102     HRESULT hr;
103
104     TRACE("(%p,%s,%s,%u,%u,%p)\n", iface, debugstr_w(wzFilename),
105         debugstr_guid(pguidVendor), dwDesiredAccess, metadataOptions, ppIDecoder);
106
107     hr = StreamImpl_Create(&stream);
108     if (SUCCEEDED(hr))
109     {
110         hr = IWICStream_InitializeFromFilename(stream, wzFilename, dwDesiredAccess);
111
112         if (SUCCEEDED(hr))
113         {
114             hr = IWICComponentFactory_CreateDecoderFromStream(iface, (IStream*)stream,
115                 pguidVendor, metadataOptions, ppIDecoder);
116         }
117
118         IWICStream_Release(stream);
119     }
120
121     return hr;
122 }
123
124 static HRESULT WINAPI ComponentFactory_CreateDecoderFromStream(
125     IWICComponentFactory *iface, IStream *pIStream, const GUID *pguidVendor,
126     WICDecodeOptions metadataOptions, IWICBitmapDecoder **ppIDecoder)
127 {
128     IEnumUnknown *enumdecoders;
129     IUnknown *unkdecoderinfo;
130     IWICBitmapDecoderInfo *decoderinfo;
131     IWICBitmapDecoder *decoder = NULL, *preferred_decoder = NULL;
132     GUID vendor;
133     HRESULT res=S_OK;
134     ULONG num_fetched;
135     BOOL matches;
136
137     TRACE("(%p,%p,%s,%u,%p)\n", iface, pIStream, debugstr_guid(pguidVendor),
138         metadataOptions, ppIDecoder);
139
140     res = CreateComponentEnumerator(WICDecoder, WICComponentEnumerateDefault, &enumdecoders);
141     if (FAILED(res)) return res;
142
143     while (!preferred_decoder)
144     {
145         res = IEnumUnknown_Next(enumdecoders, 1, &unkdecoderinfo, &num_fetched);
146
147         if (res == S_OK)
148         {
149             res = IUnknown_QueryInterface(unkdecoderinfo, &IID_IWICBitmapDecoderInfo, (void**)&decoderinfo);
150
151             if (SUCCEEDED(res))
152             {
153                 res = IWICBitmapDecoderInfo_MatchesPattern(decoderinfo, pIStream, &matches);
154
155                 if (SUCCEEDED(res) && matches)
156                 {
157                     IWICBitmapDecoder *new_decoder;
158
159                     res = IWICBitmapDecoderInfo_CreateInstance(decoderinfo, &new_decoder);
160
161                     /* FIXME: should use QueryCapability to choose a decoder */
162
163                     if (SUCCEEDED(res))
164                     {
165                         res = IWICBitmapDecoder_Initialize(new_decoder, pIStream, metadataOptions);
166
167                         if (SUCCEEDED(res))
168                         {
169                             if (pguidVendor)
170                             {
171                                 res = IWICBitmapDecoderInfo_GetVendorGUID(decoderinfo, &vendor);
172                                 if (SUCCEEDED(res) && IsEqualIID(&vendor, pguidVendor))
173                                 {
174                                     preferred_decoder = new_decoder;
175                                     new_decoder = NULL;
176                                 }
177                             }
178
179                             if (new_decoder && !decoder)
180                             {
181                                 decoder = new_decoder;
182                                 new_decoder = NULL;
183                             }
184                         }
185
186                         if (new_decoder) IWICBitmapDecoder_Release(new_decoder);
187                     }
188                 }
189
190                 IWICBitmapDecoderInfo_Release(decoderinfo);
191             }
192
193             IUnknown_Release(unkdecoderinfo);
194         }
195         else
196             break;
197     }
198
199     IEnumUnknown_Release(enumdecoders);
200
201     if (preferred_decoder)
202     {
203         *ppIDecoder = preferred_decoder;
204         if (decoder) IWICBitmapDecoder_Release(decoder);
205         return S_OK;
206     }
207
208     if (decoder)
209     {
210         *ppIDecoder = decoder;
211         return S_OK;
212     }
213     else
214     {
215         if (WARN_ON(wincodecs))
216         {
217             LARGE_INTEGER seek;
218             BYTE data[4];
219             ULONG bytesread;
220
221             WARN("failed to load from a stream\n");
222
223             seek.QuadPart = 0;
224             res = IStream_Seek(pIStream, seek, STREAM_SEEK_SET, NULL);
225             if (SUCCEEDED(res))
226                 res = IStream_Read(pIStream, data, 4, &bytesread);
227             if (SUCCEEDED(res))
228                 WARN("first %i bytes of stream=%x %x %x %x\n", bytesread, data[0], data[1], data[2], data[3]);
229         }
230         *ppIDecoder = NULL;
231         return WINCODEC_ERR_COMPONENTNOTFOUND;
232     }
233 }
234
235 static HRESULT WINAPI ComponentFactory_CreateDecoderFromFileHandle(
236     IWICComponentFactory *iface, ULONG_PTR hFile, const GUID *pguidVendor,
237     WICDecodeOptions metadataOptions, IWICBitmapDecoder **ppIDecoder)
238 {
239     FIXME("(%p,%lx,%s,%u,%p): stub\n", iface, hFile, debugstr_guid(pguidVendor),
240         metadataOptions, ppIDecoder);
241     return E_NOTIMPL;
242 }
243
244 static HRESULT WINAPI ComponentFactory_CreateComponentInfo(IWICComponentFactory *iface,
245     REFCLSID clsidComponent, IWICComponentInfo **ppIInfo)
246 {
247     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(clsidComponent), ppIInfo);
248     return CreateComponentInfo(clsidComponent, ppIInfo);
249 }
250
251 static HRESULT WINAPI ComponentFactory_CreateDecoder(IWICComponentFactory *iface,
252     REFGUID guidContainerFormat, const GUID *pguidVendor,
253     IWICBitmapDecoder **ppIDecoder)
254 {
255     IEnumUnknown *enumdecoders;
256     IUnknown *unkdecoderinfo;
257     IWICBitmapDecoderInfo *decoderinfo;
258     IWICBitmapDecoder *decoder = NULL, *preferred_decoder = NULL;
259     GUID vendor;
260     HRESULT res;
261     ULONG num_fetched;
262
263     TRACE("(%p,%s,%s,%p)\n", iface, debugstr_guid(guidContainerFormat),
264         debugstr_guid(pguidVendor), ppIDecoder);
265
266     if (!guidContainerFormat || !ppIDecoder) return E_INVALIDARG;
267
268     res = CreateComponentEnumerator(WICDecoder, WICComponentEnumerateDefault, &enumdecoders);
269     if (FAILED(res)) return res;
270
271     while (!preferred_decoder)
272     {
273         res = IEnumUnknown_Next(enumdecoders, 1, &unkdecoderinfo, &num_fetched);
274         if (res != S_OK) break;
275
276         res = IUnknown_QueryInterface(unkdecoderinfo, &IID_IWICBitmapDecoderInfo, (void **)&decoderinfo);
277         if (SUCCEEDED(res))
278         {
279             GUID container_guid;
280
281             res = IWICBitmapDecoderInfo_GetContainerFormat(decoderinfo, &container_guid);
282             if (SUCCEEDED(res) && IsEqualIID(&container_guid, guidContainerFormat))
283             {
284                 IWICBitmapDecoder *new_decoder;
285
286                 res = IWICBitmapDecoderInfo_CreateInstance(decoderinfo, &new_decoder);
287                 if (SUCCEEDED(res))
288                 {
289                     if (pguidVendor)
290                     {
291                         res = IWICBitmapDecoderInfo_GetVendorGUID(decoderinfo, &vendor);
292                         if (SUCCEEDED(res) && IsEqualIID(&vendor, pguidVendor))
293                         {
294                             preferred_decoder = new_decoder;
295                             new_decoder = NULL;
296                         }
297                     }
298
299                     if (new_decoder && !decoder)
300                     {
301                         decoder = new_decoder;
302                         new_decoder = NULL;
303                     }
304
305                     if (new_decoder) IWICBitmapDecoder_Release(new_decoder);
306                 }
307             }
308
309             IWICBitmapDecoderInfo_Release(decoderinfo);
310         }
311
312         IUnknown_Release(unkdecoderinfo);
313     }
314
315     IEnumUnknown_Release(enumdecoders);
316
317     if (preferred_decoder)
318     {
319         *ppIDecoder = preferred_decoder;
320         if (decoder) IWICBitmapDecoder_Release(decoder);
321         return S_OK;
322     }
323
324     if (decoder)
325     {
326         *ppIDecoder = decoder;
327         return S_OK;
328     }
329
330     *ppIDecoder = NULL;
331     return WINCODEC_ERR_COMPONENTNOTFOUND;
332 }
333
334 static HRESULT WINAPI ComponentFactory_CreateEncoder(IWICComponentFactory *iface,
335     REFGUID guidContainerFormat, const GUID *pguidVendor,
336     IWICBitmapEncoder **ppIEncoder)
337 {
338     FIXME("(%p,%s,%s,%p): stub\n", iface, debugstr_guid(guidContainerFormat),
339         debugstr_guid(pguidVendor), ppIEncoder);
340     return E_NOTIMPL;
341 }
342
343 static HRESULT WINAPI ComponentFactory_CreatePalette(IWICComponentFactory *iface,
344     IWICPalette **ppIPalette)
345 {
346     TRACE("(%p,%p)\n", iface, ppIPalette);
347     return PaletteImpl_Create(ppIPalette);
348 }
349
350 static HRESULT WINAPI ComponentFactory_CreateFormatConverter(IWICComponentFactory *iface,
351     IWICFormatConverter **ppIFormatConverter)
352 {
353     return FormatConverter_CreateInstance(NULL, &IID_IWICFormatConverter, (void**)ppIFormatConverter);
354 }
355
356 static HRESULT WINAPI ComponentFactory_CreateBitmapScaler(IWICComponentFactory *iface,
357     IWICBitmapScaler **ppIBitmapScaler)
358 {
359     FIXME("(%p,%p): stub\n", iface, ppIBitmapScaler);
360     return E_NOTIMPL;
361 }
362
363 static HRESULT WINAPI ComponentFactory_CreateBitmapClipper(IWICComponentFactory *iface,
364     IWICBitmapClipper **ppIBitmapClipper)
365 {
366     FIXME("(%p,%p): stub\n", iface, ppIBitmapClipper);
367     return E_NOTIMPL;
368 }
369
370 static HRESULT WINAPI ComponentFactory_CreateBitmapFlipRotator(IWICComponentFactory *iface,
371     IWICBitmapFlipRotator **ppIBitmapFlipRotator)
372 {
373     TRACE("(%p,%p)\n", iface, ppIBitmapFlipRotator);
374     return FlipRotator_Create(ppIBitmapFlipRotator);
375 }
376
377 static HRESULT WINAPI ComponentFactory_CreateStream(IWICComponentFactory *iface,
378     IWICStream **ppIWICStream)
379 {
380     TRACE("(%p,%p)\n", iface, ppIWICStream);
381     return StreamImpl_Create(ppIWICStream);
382 }
383
384 static HRESULT WINAPI ComponentFactory_CreateColorContext(IWICComponentFactory *iface,
385     IWICColorContext **ppIColorContext)
386 {
387     FIXME("(%p,%p): stub\n", iface, ppIColorContext);
388     return E_NOTIMPL;
389 }
390
391 static HRESULT WINAPI ComponentFactory_CreateColorTransformer(IWICComponentFactory *iface,
392     IWICColorTransform **ppIColorTransform)
393 {
394     FIXME("(%p,%p): stub\n", iface, ppIColorTransform);
395     return E_NOTIMPL;
396 }
397
398 static HRESULT WINAPI ComponentFactory_CreateBitmap(IWICComponentFactory *iface,
399     UINT uiWidth, UINT uiHeight, REFWICPixelFormatGUID pixelFormat,
400     WICBitmapCreateCacheOption option, IWICBitmap **ppIBitmap)
401 {
402     FIXME("(%p,%u,%u,%s,%u,%p): stub\n", iface, uiWidth, uiHeight,
403         debugstr_guid(pixelFormat), option, ppIBitmap);
404     return E_NOTIMPL;
405 }
406
407 static HRESULT WINAPI ComponentFactory_CreateBitmapFromSource(IWICComponentFactory *iface,
408     IWICBitmapSource *piBitmapSource, WICBitmapCreateCacheOption option,
409     IWICBitmap **ppIBitmap)
410 {
411     FIXME("(%p,%p,%u,%p): stub\n", iface, piBitmapSource, option, ppIBitmap);
412     return E_NOTIMPL;
413 }
414
415 static HRESULT WINAPI ComponentFactory_CreateBitmapFromSourceRect(IWICComponentFactory *iface,
416     IWICBitmapSource *piBitmapSource, UINT x, UINT y, UINT width, UINT height,
417     IWICBitmap **ppIBitmap)
418 {
419     FIXME("(%p,%p,%u,%u,%u,%u,%p): stub\n", iface, piBitmapSource, x, y, width,
420         height, ppIBitmap);
421     return E_NOTIMPL;
422 }
423
424 static HRESULT WINAPI ComponentFactory_CreateBitmapFromMemory(IWICComponentFactory *iface,
425     UINT uiWidth, UINT uiHeight, REFWICPixelFormatGUID pixelFormat, UINT cbStride,
426     UINT cbBufferSize, BYTE *pbBuffer, IWICBitmap **ppIBitmap)
427 {
428     FIXME("(%p,%u,%u,%s,%u,%u,%p,%p): stub\n", iface, uiWidth, uiHeight,
429         debugstr_guid(pixelFormat), cbStride, cbBufferSize, pbBuffer, ppIBitmap);
430     return E_NOTIMPL;
431 }
432
433 static HRESULT WINAPI ComponentFactory_CreateBitmapFromHBITMAP(IWICComponentFactory *iface,
434     HBITMAP hBitmap, HPALETTE hPalette, WICBitmapAlphaChannelOption options,
435     IWICBitmap **ppIBitmap)
436 {
437     FIXME("(%p,%p,%p,%u,%p): stub\n", iface, hBitmap, hPalette, options, ppIBitmap);
438     return E_NOTIMPL;
439 }
440
441 static HRESULT WINAPI ComponentFactory_CreateBitmapFromHICON(IWICComponentFactory *iface,
442     HICON hIcon, IWICBitmap **ppIBitmap)
443 {
444     FIXME("(%p,%p,%p): stub\n", iface, hIcon, ppIBitmap);
445     return E_NOTIMPL;
446 }
447
448 static HRESULT WINAPI ComponentFactory_CreateComponentEnumerator(IWICComponentFactory *iface,
449     DWORD componentTypes, DWORD options, IEnumUnknown **ppIEnumUnknown)
450 {
451     TRACE("(%p,%u,%u,%p)\n", iface, componentTypes, options, ppIEnumUnknown);
452     return CreateComponentEnumerator(componentTypes, options, ppIEnumUnknown);
453 }
454
455 static HRESULT WINAPI ComponentFactory_CreateFastMetadataEncoderFromDecoder(
456     IWICComponentFactory *iface, IWICBitmapDecoder *pIDecoder,
457     IWICFastMetadataEncoder **ppIFastEncoder)
458 {
459     FIXME("(%p,%p,%p): stub\n", iface, pIDecoder, ppIFastEncoder);
460     return E_NOTIMPL;
461 }
462
463 static HRESULT WINAPI ComponentFactory_CreateFastMetadataEncoderFromFrameDecode(
464     IWICComponentFactory *iface, IWICBitmapFrameDecode *pIFrameDecoder,
465     IWICFastMetadataEncoder **ppIFastEncoder)
466 {
467     FIXME("(%p,%p,%p): stub\n", iface, pIFrameDecoder, ppIFastEncoder);
468     return E_NOTIMPL;
469 }
470
471 static HRESULT WINAPI ComponentFactory_CreateQueryWriter(IWICComponentFactory *iface,
472     REFGUID guidMetadataFormat, const GUID *pguidVendor,
473     IWICMetadataQueryWriter **ppIQueryWriter)
474 {
475     FIXME("(%p,%s,%s,%p): stub\n", iface, debugstr_guid(guidMetadataFormat),
476         debugstr_guid(pguidVendor), ppIQueryWriter);
477     return E_NOTIMPL;
478 }
479
480 static HRESULT WINAPI ComponentFactory_CreateQueryWriterFromReader(IWICComponentFactory *iface,
481     IWICMetadataQueryReader *pIQueryReader, const GUID *pguidVendor,
482     IWICMetadataQueryWriter **ppIQueryWriter)
483 {
484     FIXME("(%p,%p,%s,%p): stub\n", iface, pIQueryReader, debugstr_guid(pguidVendor),
485         ppIQueryWriter);
486     return E_NOTIMPL;
487 }
488
489 static HRESULT WINAPI ComponentFactory_CreateMetadataReader(IWICComponentFactory *iface,
490         REFGUID format, const GUID *vendor, DWORD options, IStream *stream, IWICMetadataReader **reader)
491 {
492     FIXME("%p,%s,%s,%x,%p,%p: stub\n", iface, debugstr_guid(format), debugstr_guid(vendor),
493         options, stream, reader);
494     return E_NOTIMPL;
495 }
496
497 static HRESULT WINAPI ComponentFactory_CreateMetadataReaderFromContainer(IWICComponentFactory *iface,
498         REFGUID format, const GUID *vendor, DWORD options, IStream *stream, IWICMetadataReader **reader)
499 {
500     FIXME("%p,%s,%s,%x,%p,%p: stub\n", iface, debugstr_guid(format), debugstr_guid(vendor),
501         options, stream, reader);
502     return E_NOTIMPL;
503 }
504
505 static HRESULT WINAPI ComponentFactory_CreateMetadataWriter(IWICComponentFactory *iface,
506         REFGUID format, const GUID *vendor, DWORD options, IWICMetadataWriter **writer)
507 {
508     FIXME("%p,%s,%s,%x,%p: stub\n", iface, debugstr_guid(format), debugstr_guid(vendor), options, writer);
509     return E_NOTIMPL;
510 }
511
512 static HRESULT WINAPI ComponentFactory_CreateMetadataWriterFromReader(IWICComponentFactory *iface,
513         IWICMetadataReader *reader, const GUID *vendor, IWICMetadataWriter **writer)
514 {
515     FIXME("%p,%p,%s,%p: stub\n", iface, reader, debugstr_guid(vendor), writer);
516     return E_NOTIMPL;
517 }
518
519 static HRESULT WINAPI ComponentFactory_CreateQueryReaderFromBlockReader(IWICComponentFactory *iface,
520         IWICMetadataBlockReader *block_reader, IWICMetadataQueryReader **query_reader)
521 {
522     FIXME("%p,%p,%p: stub\n", iface, block_reader, query_reader);
523     return E_NOTIMPL;
524 }
525
526 static HRESULT WINAPI ComponentFactory_CreateQueryWriterFromBlockWriter(IWICComponentFactory *iface,
527         IWICMetadataBlockWriter *block_writer, IWICMetadataQueryWriter **query_writer)
528 {
529     FIXME("%p,%p,%p: stub\n", iface, block_writer, query_writer);
530     return E_NOTIMPL;
531 }
532
533 static HRESULT WINAPI ComponentFactory_CreateEncoderPropertyBag(IWICComponentFactory *iface,
534         PROPBAG2 *options, UINT count, IPropertyBag2 **property)
535 {
536     FIXME("%p,%p,%u,%p: stub\n", iface, options, count, property);
537     return E_NOTIMPL;
538 }
539
540 static const IWICComponentFactoryVtbl ComponentFactory_Vtbl = {
541     ComponentFactory_QueryInterface,
542     ComponentFactory_AddRef,
543     ComponentFactory_Release,
544     ComponentFactory_CreateDecoderFromFilename,
545     ComponentFactory_CreateDecoderFromStream,
546     ComponentFactory_CreateDecoderFromFileHandle,
547     ComponentFactory_CreateComponentInfo,
548     ComponentFactory_CreateDecoder,
549     ComponentFactory_CreateEncoder,
550     ComponentFactory_CreatePalette,
551     ComponentFactory_CreateFormatConverter,
552     ComponentFactory_CreateBitmapScaler,
553     ComponentFactory_CreateBitmapClipper,
554     ComponentFactory_CreateBitmapFlipRotator,
555     ComponentFactory_CreateStream,
556     ComponentFactory_CreateColorContext,
557     ComponentFactory_CreateColorTransformer,
558     ComponentFactory_CreateBitmap,
559     ComponentFactory_CreateBitmapFromSource,
560     ComponentFactory_CreateBitmapFromSourceRect,
561     ComponentFactory_CreateBitmapFromMemory,
562     ComponentFactory_CreateBitmapFromHBITMAP,
563     ComponentFactory_CreateBitmapFromHICON,
564     ComponentFactory_CreateComponentEnumerator,
565     ComponentFactory_CreateFastMetadataEncoderFromDecoder,
566     ComponentFactory_CreateFastMetadataEncoderFromFrameDecode,
567     ComponentFactory_CreateQueryWriter,
568     ComponentFactory_CreateQueryWriterFromReader,
569     ComponentFactory_CreateMetadataReader,
570     ComponentFactory_CreateMetadataReaderFromContainer,
571     ComponentFactory_CreateMetadataWriter,
572     ComponentFactory_CreateMetadataWriterFromReader,
573     ComponentFactory_CreateQueryReaderFromBlockReader,
574     ComponentFactory_CreateQueryWriterFromBlockWriter,
575     ComponentFactory_CreateEncoderPropertyBag
576 };
577
578 HRESULT ComponentFactory_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
579 {
580     ComponentFactory *This;
581     HRESULT ret;
582
583     TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
584
585     *ppv = NULL;
586
587     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
588
589     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ComponentFactory));
590     if (!This) return E_OUTOFMEMORY;
591
592     This->IWICComponentFactory_iface.lpVtbl = &ComponentFactory_Vtbl;
593     This->ref = 1;
594
595     ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
596     IUnknown_Release((IUnknown*)This);
597
598     return ret;
599 }