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