dlls/amstream/audiodata.c

   1 /*
   2  * Implementation of IAudioData Interface
   3  *
   4  * Copyright 2012 Christian Costa
   5  *
   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.
  10  *
  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.
  15  *
  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
  19  */
  20
  21 #include "wine/debug.h"
  22
  23 #define COBJMACROS
  24
  25 #include "winbase.h"
  26 #include "amstream_private.h"
  27
  28 #include "amstream.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(amstream);
  31
  32 typedef struct {
  33     IAudioData IAudioData_iface;
  34     LONG ref;
  35 } AMAudioDataImpl;
  36
  37 static inline AMAudioDataImpl *impl_from_IAudioData(IAudioData *iface)
  38 {
  39     return CONTAINING_RECORD(iface, AMAudioDataImpl, IAudioData_iface);
  40 }
  41
  42 /*** IUnknown methods ***/
  43 static HRESULT WINAPI IAudioDataImpl_QueryInterface(IAudioData *iface, REFIID riid, void **ret_iface)
  44 {
  45     TRACE("(%p)->(%s,%p)\n", iface, debugstr_guid(riid), ret_iface);
  46
  47     if (IsEqualGUID(riid, &IID_IUnknown) ||
  48         IsEqualGUID(riid, &IID_IMemoryData) ||
  49         IsEqualGUID(riid, &IID_IAudioData))
  50     {
  51         IAudioData_AddRef(iface);
  52         *ret_iface = iface;
  53         return S_OK;
  54     }
  55
  56     ERR("(%p)->(%s,%p),not found\n", iface, debugstr_guid(riid), ret_iface);
  57     return E_NOINTERFACE;
  58 }
  59
  60 static ULONG WINAPI IAudioDataImpl_AddRef(IAudioData* iface)
  61 {
  62     AMAudioDataImpl *This = impl_from_IAudioData(iface);
  63     ULONG ref = InterlockedIncrement(&This->ref);
  64
  65     TRACE("(%p)->(): new ref = %u\n", iface, This->ref);
  66
  67     return ref;
  68 }
  69
  70 static ULONG WINAPI IAudioDataImpl_Release(IAudioData* iface)
  71 {
  72     AMAudioDataImpl *This = impl_from_IAudioData(iface);
  73     ULONG ref = InterlockedDecrement(&This->ref);
  74
  75     TRACE("(%p)->(): new ref = %u\n", iface, This->ref);
  76
  77     if (!ref)
  78         HeapFree(GetProcessHeap(), 0, This);
  79
  80     return ref;
  81 }
  82
  83 /*** IMemoryData methods ***/
  84 static HRESULT WINAPI IAudioDataImpl_SetBuffer(IAudioData* iface, DWORD size, BYTE *data, DWORD flags)
  85 {
  86     FIXME("(%p)->(%u,%p,%x): stub\n", iface, size, data, flags);
  87
  88     return E_NOTIMPL;
  89 }
  90
  91 static HRESULT WINAPI IAudioDataImpl_GetInfo(IAudioData* iface, DWORD *length, BYTE **data, DWORD *actual_data)
  92 {
  93     FIXME("(%p)->(%p,%p,%p): stub\n", iface, length, data, actual_data);
  94
  95     return E_NOTIMPL;
  96 }
  97
  98 static HRESULT WINAPI IAudioDataImpl_SetActual(IAudioData* iface, DWORD data_valid)
  99 {
 100     FIXME("(%p)->(%u): stub\n", iface, data_valid);
 101
 102     return E_NOTIMPL;
 103 }
 104
 105 /*** IAudioData methods ***/
 106 static HRESULT WINAPI IAudioDataImpl_GetFormat(IAudioData* iface, WAVEFORMATEX *wave_format_current)
 107 {
 108     FIXME("(%p)->(%p): stub\n", iface, wave_format_current);
 109
 110     return E_NOTIMPL;
 111 }
 112
 113 static HRESULT WINAPI IAudioDataImpl_SetFormat(IAudioData* iface, const WAVEFORMATEX *wave_format)
 114 {
 115     FIXME("(%p)->(%p): stub\n", iface, wave_format);
 116
 117     return E_NOTIMPL;
 118 }
 119
 120 static const struct IAudioDataVtbl AudioData_Vtbl =
 121 {
 122     /*** IUnknown methods ***/
 123     IAudioDataImpl_QueryInterface,
 124     IAudioDataImpl_AddRef,
 125     IAudioDataImpl_Release,
 126     /*** IMemoryData methods ***/
 127     IAudioDataImpl_SetBuffer,
 128     IAudioDataImpl_GetInfo,
 129     IAudioDataImpl_SetActual,
 130     /*** IAudioData methods ***/
 131     IAudioDataImpl_GetFormat,
 132     IAudioDataImpl_SetFormat
 133 };
 134
 135 HRESULT AMAudioData_create(IUnknown *pUnkOuter, LPVOID *ppObj)
 136 {
 137     AMAudioDataImpl *object;
 138
 139     TRACE("(%p,%p)\n", pUnkOuter, ppObj);
 140
 141     if (pUnkOuter)
 142         return CLASS_E_NOAGGREGATION;
 143
 144     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(AMAudioDataImpl));
 145     if (!object)
 146         return E_OUTOFMEMORY;
 147
 148     object->IAudioData_iface.lpVtbl = &AudioData_Vtbl;
 149     object->ref = 1;
 150
 151     *ppObj = &object->IAudioData_iface;
 152
 153     return S_OK;
 154 }