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 "ocidl.h"
30 #include "initguid.h"
31 
32 #include "wincodecs_private.h"
33 
34 #include "wine/debug.h"
35 
36 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
37 
38 extern HRESULT WINAPI WIC_DllGetClassObject(REFCLSID, REFIID, LPVOID *) DECLSPEC_HIDDEN;
39 
40 typedef struct {
41     REFCLSID classid;
42     class_constructor constructor;
43 } classinfo;
44 
45 static const classinfo wic_classes[] = {
46     {&CLSID_WICImagingFactory, ImagingFactory_CreateInstance},
47     {&CLSID_WICImagingFactory2, ImagingFactory_CreateInstance},
48     {&CLSID_WICBmpDecoder, BmpDecoder_CreateInstance},
49     {&CLSID_WICPngDecoder, PngDecoder_CreateInstance},
50     {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
51     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
52     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
53     {&CLSID_WICGifEncoder, GifEncoder_CreateInstance},
54     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
55     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
56     {&CLSID_WICJpegEncoder, JpegEncoder_CreateInstance},
57     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
58     {&CLSID_WICTiffEncoder, TiffEncoder_CreateInstance},
59     {&CLSID_WICIcnsEncoder, IcnsEncoder_CreateInstance},
60     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
61     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
62     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
63     {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
64     {&CLSID_WICPngChrmMetadataReader, PngChrmReader_CreateInstance},
65     {&CLSID_WICPngGamaMetadataReader, PngGamaReader_CreateInstance},
66     {&CLSID_WICPngTextMetadataReader, PngTextReader_CreateInstance},
67     {&CLSID_WICLSDMetadataReader, LSDReader_CreateInstance},
68     {&CLSID_WICIMDMetadataReader, IMDReader_CreateInstance},
69     {&CLSID_WICGCEMetadataReader, GCEReader_CreateInstance},
70     {&CLSID_WICAPEMetadataReader, APEReader_CreateInstance},
71     {&CLSID_WICGifCommentMetadataReader, GifCommentReader_CreateInstance},
72     {0}};
73 
74 typedef struct {
75     IClassFactory           IClassFactory_iface;
76     LONG                    ref;
77     const classinfo         *info;
78 } ClassFactoryImpl;
79 
80 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
81 {
82     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
83 }
84 
85 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
86     REFIID iid, void **ppv)
87 {
88     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
89     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
90 
91     if (!ppv) return E_INVALIDARG;
92 
93     if (IsEqualIID(&IID_IUnknown, iid) ||
94         IsEqualIID(&IID_IClassFactory, iid))
95     {
96         *ppv = &This->IClassFactory_iface;
97     }
98     else
99     {
100         *ppv = NULL;
101         return E_NOINTERFACE;
102     }
103 
104     IUnknown_AddRef((IUnknown*)*ppv);
105     return S_OK;
106 }
107 
108 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
109 {
110     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
111     ULONG ref = InterlockedIncrement(&This->ref);
112 
113     TRACE("(%p) refcount=%u\n", iface, ref);
114 
115     return ref;
116 }
117 
118 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
119 {
120     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
121     ULONG ref = InterlockedDecrement(&This->ref);
122 
123     TRACE("(%p) refcount=%u\n", iface, ref);
124 
125     if (ref == 0)
126         HeapFree(GetProcessHeap(), 0, This);
127 
128     return ref;
129 }
130 
131 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
132     IUnknown *pUnkOuter, REFIID riid, void **ppv)
133 {
134     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
135 
136     *ppv = NULL;
137 
138     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
139 
140     return This->info->constructor(riid, ppv);
141 }
142 
143 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
144 {
145     TRACE("(%p, %i): stub\n", iface, lock);
146     return E_NOTIMPL;
147 }
148 
149 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
150     ClassFactoryImpl_QueryInterface,
151     ClassFactoryImpl_AddRef,
152     ClassFactoryImpl_Release,
153     ClassFactoryImpl_CreateInstance,
154     ClassFactoryImpl_LockServer
155 };
156 
157 static HRESULT ClassFactoryImpl_Constructor(const classinfo *info, REFIID riid, LPVOID *ppv)
158 {
159     ClassFactoryImpl *This;
160     HRESULT ret;
161 
162     *ppv = NULL;
163 
164     This = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassFactoryImpl));
165     if (!This) return E_OUTOFMEMORY;
166 
167     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
168     This->ref = 1;
169     This->info = info;
170 
171     ret = IClassFactory_QueryInterface(&This->IClassFactory_iface, riid, ppv);
172     IClassFactory_Release(&This->IClassFactory_iface);
173 
174     return ret;
175 }
176 
177 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
178 {
179     HRESULT ret;
180     const classinfo *info=NULL;
181     int i;
182 
183     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
184 
185     if (!rclsid || !iid || !ppv)
186         return E_INVALIDARG;
187 
188     *ppv = NULL;
189 
190     for (i=0; wic_classes[i].classid; i++)
191     {
192         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
193         {
194             info = &wic_classes[i];
195             break;
196         }
197     }
198 
199     if (info)
200         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
201     else
202         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
203 
204     TRACE("<-- %08X\n", ret);
205     return ret;
206 }
207 
208 HRESULT create_instance(CLSID *clsid, const IID *iid, void **ppv)
209 {
210     int i;
211 
212     for (i=0; wic_classes[i].classid; i++)
213         if (IsEqualCLSID(wic_classes[i].classid, clsid))
214             return wic_classes[i].constructor(iid, ppv);
215 
216     return CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, iid, ppv);
217 }
218