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 <stdarg.h>
20 
21 #define COBJMACROS
22 
23 #include "windef.h"
24 #include "winbase.h"
25 #include "winreg.h"
26 #include "objbase.h"
27 #include "ocidl.h"
28 #include "wincodec.h"
29 #include "wincodecsdk.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 *);
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_WICPngDecoder2, PngDecoder_CreateInstance},
51     {&CLSID_WICPngEncoder, PngEncoder_CreateInstance},
52     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
53     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
54     {&CLSID_WICGifEncoder, GifEncoder_CreateInstance},
55     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
56     {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
57     {&CLSID_WICJpegEncoder, JpegEncoder_CreateInstance},
58     {&CLSID_WICTiffDecoder, TiffDecoder_CreateInstance},
59     {&CLSID_WICTiffEncoder, TiffEncoder_CreateInstance},
60     {&CLSID_WICDdsDecoder, DdsDecoder_CreateInstance},
61     {&CLSID_WICDdsEncoder, DdsEncoder_CreateInstance},
62     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
63     {&CLSID_WineTgaDecoder, TgaDecoder_CreateInstance},
64     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
65     {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
66     {&CLSID_WICPngChrmMetadataReader, PngChrmReader_CreateInstance},
67     {&CLSID_WICPngGamaMetadataReader, PngGamaReader_CreateInstance},
68     {&CLSID_WICPngHistMetadataReader, PngHistReader_CreateInstance},
69     {&CLSID_WICPngTextMetadataReader, PngTextReader_CreateInstance},
70     {&CLSID_WICPngTimeMetadataReader, PngTimeReader_CreateInstance},
71     {&CLSID_WICLSDMetadataReader, LSDReader_CreateInstance},
72     {&CLSID_WICIMDMetadataReader, IMDReader_CreateInstance},
73     {&CLSID_WICGCEMetadataReader, GCEReader_CreateInstance},
74     {&CLSID_WICAPEMetadataReader, APEReader_CreateInstance},
75     {&CLSID_WICGifCommentMetadataReader, GifCommentReader_CreateInstance},
76     {0}};
77 
78 typedef struct {
79     IClassFactory           IClassFactory_iface;
80     LONG                    ref;
81     const classinfo         *info;
82 } ClassFactoryImpl;
83 
84 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
85 {
86     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
87 }
88 
89 static HRESULT WINAPI ClassFactoryImpl_QueryInterface(IClassFactory *iface,
90     REFIID iid, void **ppv)
91 {
92     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
93     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
94 
95     if (!ppv) return E_INVALIDARG;
96 
97     if (IsEqualIID(&IID_IUnknown, iid) ||
98         IsEqualIID(&IID_IClassFactory, iid))
99     {
100         *ppv = &This->IClassFactory_iface;
101     }
102     else
103     {
104         *ppv = NULL;
105         return E_NOINTERFACE;
106     }
107 
108     IUnknown_AddRef((IUnknown*)*ppv);
109     return S_OK;
110 }
111 
112 static ULONG WINAPI ClassFactoryImpl_AddRef(IClassFactory *iface)
113 {
114     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
115     ULONG ref = InterlockedIncrement(&This->ref);
116 
117     TRACE("(%p) refcount=%lu\n", iface, ref);
118 
119     return ref;
120 }
121 
122 static ULONG WINAPI ClassFactoryImpl_Release(IClassFactory *iface)
123 {
124     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
125     ULONG ref = InterlockedDecrement(&This->ref);
126 
127     TRACE("(%p) refcount=%lu\n", iface, ref);
128 
129     if (ref == 0)
130         free(This);
131 
132     return ref;
133 }
134 
135 static HRESULT WINAPI ClassFactoryImpl_CreateInstance(IClassFactory *iface,
136     IUnknown *pUnkOuter, REFIID riid, void **ppv)
137 {
138     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
139 
140     *ppv = NULL;
141 
142     if (pUnkOuter) return CLASS_E_NOAGGREGATION;
143 
144     return This->info->constructor(riid, ppv);
145 }
146 
147 static HRESULT WINAPI ClassFactoryImpl_LockServer(IClassFactory *iface, BOOL lock)
148 {
149     TRACE("(%p, %i): stub\n", iface, lock);
150     return E_NOTIMPL;
151 }
152 
153 static const IClassFactoryVtbl ClassFactoryImpl_Vtbl = {
154     ClassFactoryImpl_QueryInterface,
155     ClassFactoryImpl_AddRef,
156     ClassFactoryImpl_Release,
157     ClassFactoryImpl_CreateInstance,
158     ClassFactoryImpl_LockServer
159 };
160 
161 static HRESULT ClassFactoryImpl_Constructor(const classinfo *info, REFIID riid, LPVOID *ppv)
162 {
163     ClassFactoryImpl *This;
164     HRESULT ret;
165 
166     *ppv = NULL;
167 
168     This = malloc(sizeof(ClassFactoryImpl));
169     if (!This) return E_OUTOFMEMORY;
170 
171     This->IClassFactory_iface.lpVtbl = &ClassFactoryImpl_Vtbl;
172     This->ref = 1;
173     This->info = info;
174 
175     ret = IClassFactory_QueryInterface(&This->IClassFactory_iface, riid, ppv);
176     IClassFactory_Release(&This->IClassFactory_iface);
177 
178     return ret;
179 }
180 
181 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
182 {
183     HRESULT ret;
184     const classinfo *info=NULL;
185     int i;
186 
187     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
188 
189     if (!rclsid || !iid || !ppv)
190         return E_INVALIDARG;
191 
192     *ppv = NULL;
193 
194     for (i=0; wic_classes[i].classid; i++)
195     {
196         if (IsEqualCLSID(wic_classes[i].classid, rclsid))
197         {
198             info = &wic_classes[i];
199             break;
200         }
201     }
202 
203     if (info)
204         ret = ClassFactoryImpl_Constructor(info, iid, ppv);
205     else
206         ret = WIC_DllGetClassObject(rclsid, iid, ppv);
207 
208     TRACE("<-- %08lX\n", ret);
209     return ret;
210 }
211 
212 HRESULT create_instance(const CLSID *clsid, const IID *iid, void **ppv)
213 {
214     int i;
215 
216     for (i=0; wic_classes[i].classid; i++)
217         if (IsEqualCLSID(wic_classes[i].classid, clsid))
218             return wic_classes[i].constructor(iid, ppv);
219 
220     return CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER, iid, ppv);
221 }
222