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