configure: Changes from running autconf after previous patch.
[wine/hacks.git] / dlls / quartz / enumpins.c
blob8125ff42101e2d8f89624384351c9c0dbe852699
1 /*
2 * Implementation of IEnumPins Interface
4 * Copyright 2003 Robert Shearman
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "quartz_private.h"
23 #include "wine/debug.h"
25 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
27 typedef struct IEnumPinsImpl
29 const IEnumPinsVtbl * lpVtbl;
30 LONG refCount;
31 ULONG uIndex;
32 IBaseFilter *base;
33 FNOBTAINPIN receive_pin;
34 DWORD synctime;
35 } IEnumPinsImpl;
37 static const struct IEnumPinsVtbl IEnumPinsImpl_Vtbl;
39 HRESULT IEnumPinsImpl_Construct(IEnumPins ** ppEnum, FNOBTAINPIN receive_pin, IBaseFilter *base)
41 IEnumPinsImpl * pEnumPins;
43 if (!ppEnum)
44 return E_POINTER;
46 pEnumPins = CoTaskMemAlloc(sizeof(IEnumPinsImpl));
47 if (!pEnumPins)
49 *ppEnum = NULL;
50 return E_OUTOFMEMORY;
52 pEnumPins->lpVtbl = &IEnumPinsImpl_Vtbl;
53 pEnumPins->refCount = 1;
54 pEnumPins->uIndex = 0;
55 pEnumPins->receive_pin = receive_pin;
56 pEnumPins->base = base;
57 IBaseFilter_AddRef(base);
58 *ppEnum = (IEnumPins *)(&pEnumPins->lpVtbl);
60 receive_pin(base, ~0, NULL, &pEnumPins->synctime);
62 TRACE("Created new enumerator (%p)\n", *ppEnum);
63 return S_OK;
66 static HRESULT WINAPI IEnumPinsImpl_QueryInterface(IEnumPins * iface, REFIID riid, LPVOID * ppv)
68 TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
70 *ppv = NULL;
72 if (IsEqualIID(riid, &IID_IUnknown))
73 *ppv = iface;
74 else if (IsEqualIID(riid, &IID_IEnumPins))
75 *ppv = iface;
77 if (*ppv)
79 IUnknown_AddRef((IUnknown *)(*ppv));
80 return S_OK;
83 FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
85 return E_NOINTERFACE;
88 static ULONG WINAPI IEnumPinsImpl_AddRef(IEnumPins * iface)
90 IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
91 ULONG refCount = InterlockedIncrement(&This->refCount);
93 TRACE("(%p)->() AddRef from %d\n", This, refCount - 1);
95 return refCount;
98 static ULONG WINAPI IEnumPinsImpl_Release(IEnumPins * iface)
100 IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
101 ULONG refCount = InterlockedDecrement(&This->refCount);
103 TRACE("(%p)->() Release from %d\n", This, refCount + 1);
105 if (!refCount)
107 IBaseFilter_Release(This->base);
108 CoTaskMemFree(This);
109 return 0;
111 else
112 return refCount;
115 static HRESULT WINAPI IEnumPinsImpl_Next(IEnumPins * iface, ULONG cPins, IPin ** ppPins, ULONG * pcFetched)
117 IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
118 DWORD synctime = This->synctime;
119 HRESULT hr = S_OK;
120 ULONG i = 0;
122 TRACE("(%u, %p, %p)\n", cPins, ppPins, pcFetched);
124 if (!ppPins)
125 return E_POINTER;
127 if (cPins > 1 && !pcFetched)
128 return E_INVALIDARG;
130 if (pcFetched)
131 *pcFetched = 0;
133 while (i < cPins && hr == S_OK)
135 hr = This->receive_pin(This->base, This->uIndex + i, &ppPins[i], &synctime);
137 if (hr == S_OK)
138 ++i;
140 if (synctime != This->synctime)
141 break;
144 if (!i && synctime != This->synctime)
145 return VFW_E_ENUM_OUT_OF_SYNC;
147 if (pcFetched)
148 *pcFetched = i;
149 This->uIndex += i;
151 if (i < cPins)
152 return S_FALSE;
153 return S_OK;
156 static HRESULT WINAPI IEnumPinsImpl_Skip(IEnumPins * iface, ULONG cPins)
158 IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
159 DWORD synctime = This->synctime;
160 HRESULT hr;
161 IPin *pin = NULL;
163 TRACE("(%u)\n", cPins);
165 hr = This->receive_pin(This->base, This->uIndex + cPins, &pin, &synctime);
166 if (pin)
167 IPin_Release(pin);
169 if (synctime != This->synctime)
170 return VFW_E_ENUM_OUT_OF_SYNC;
172 if (hr == S_OK)
173 This->uIndex += cPins;
175 return hr;
178 static HRESULT WINAPI IEnumPinsImpl_Reset(IEnumPins * iface)
180 IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
182 TRACE("IEnumPinsImpl::Reset()\n");
183 This->receive_pin(This->base, ~0, NULL, &This->synctime);
185 This->uIndex = 0;
186 return S_OK;
189 static HRESULT WINAPI IEnumPinsImpl_Clone(IEnumPins * iface, IEnumPins ** ppEnum)
191 HRESULT hr;
192 IEnumPinsImpl *This = (IEnumPinsImpl *)iface;
194 TRACE("(%p)\n", ppEnum);
196 hr = IEnumPinsImpl_Construct(ppEnum, This->receive_pin, This->base);
197 if (FAILED(hr))
198 return hr;
199 return IEnumPins_Skip(*ppEnum, This->uIndex);
202 static const IEnumPinsVtbl IEnumPinsImpl_Vtbl =
204 IEnumPinsImpl_QueryInterface,
205 IEnumPinsImpl_AddRef,
206 IEnumPinsImpl_Release,
207 IEnumPinsImpl_Next,
208 IEnumPinsImpl_Skip,
209 IEnumPinsImpl_Reset,
210 IEnumPinsImpl_Clone