Do not assign to casted values.
[wine/multimedia.git] / dlls / dmusic / buffer.c
blob06ef78e0160d0d775a208629a48cde33913ae01d
1 /* IDirectMusicBuffer Implementation
3 * Copyright (C) 2003-2004 Rok Mandeljc
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Library General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #include "dmusic_private.h"
22 WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
24 /* IDirectMusicBufferImpl IUnknown part: */
25 HRESULT WINAPI IDirectMusicBufferImpl_QueryInterface (LPDIRECTMUSICBUFFER iface, REFIID riid, LPVOID *ppobj) {
26 ICOM_THIS(IDirectMusicBufferImpl,iface);
27 TRACE("(%p, (%s, %p)\n",This,debugstr_dmguid(riid),ppobj);
28 if (IsEqualIID (riid, &IID_IUnknown)
29 || IsEqualIID (riid, &IID_IDirectMusicBuffer)) {
30 IDirectMusicBufferImpl_AddRef(iface);
31 *ppobj = This;
32 return S_OK;
34 WARN("(%p, (%s, %p): not found\n",This,debugstr_dmguid(riid),ppobj);
35 return E_NOINTERFACE;
38 ULONG WINAPI IDirectMusicBufferImpl_AddRef (LPDIRECTMUSICBUFFER iface) {
39 ICOM_THIS(IDirectMusicBufferImpl,iface);
40 TRACE("(%p): AddRef from %ld\n", This, This->ref);
41 return ++(This->ref);
44 ULONG WINAPI IDirectMusicBufferImpl_Release (LPDIRECTMUSICBUFFER iface) {
45 ICOM_THIS(IDirectMusicBufferImpl,iface);
46 ULONG ref = --This->ref;
47 TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
48 if (ref == 0) {
49 HeapFree(GetProcessHeap(), 0, This);
51 return ref;
54 /* IDirectMusicBufferImpl IDirectMusicBuffer part: */
55 HRESULT WINAPI IDirectMusicBufferImpl_Flush (LPDIRECTMUSICBUFFER iface) {
56 ICOM_THIS(IDirectMusicBufferImpl,iface);
57 FIXME("(%p): stub\n", This);
58 return S_OK;
61 HRESULT WINAPI IDirectMusicBufferImpl_TotalTime (LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prtTime) {
62 ICOM_THIS(IDirectMusicBufferImpl,iface);
63 FIXME("(%p, %p): stub\n", This, prtTime);
64 return S_OK;
67 HRESULT WINAPI IDirectMusicBufferImpl_PackStructured (LPDIRECTMUSICBUFFER iface, REFERENCE_TIME rt, DWORD dwChannelGroup, DWORD dwChannelMessage) {
68 ICOM_THIS(IDirectMusicBufferImpl,iface);
69 FIXME("(%p, %lli, %ld, %ld): stub\n", This, rt, dwChannelGroup, dwChannelMessage);
70 return S_OK;
73 HRESULT WINAPI IDirectMusicBufferImpl_PackUnstructured (LPDIRECTMUSICBUFFER iface, REFERENCE_TIME rt, DWORD dwChannelGroup, DWORD cb, LPBYTE lpb) {
74 ICOM_THIS(IDirectMusicBufferImpl,iface);
75 FIXME("(%p, %lli, %ld, %ld, %p): stub\n", This, rt, dwChannelGroup, cb, lpb);
76 return S_OK;
79 HRESULT WINAPI IDirectMusicBufferImpl_ResetReadPtr (LPDIRECTMUSICBUFFER iface) {
80 ICOM_THIS(IDirectMusicBufferImpl,iface);
81 FIXME("(%p): stub\n", This);
82 return S_OK;
85 HRESULT WINAPI IDirectMusicBufferImpl_GetNextEvent (LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prt, LPDWORD pdwChannelGroup, LPDWORD pdwLength, LPBYTE* ppData) {
86 ICOM_THIS(IDirectMusicBufferImpl,iface);
87 FIXME("(%p, %p, %p, %p, %p): stub\n", This, prt, pdwChannelGroup, pdwLength, ppData);
88 return S_OK;
91 HRESULT WINAPI IDirectMusicBufferImpl_GetRawBufferPtr (LPDIRECTMUSICBUFFER iface, LPBYTE* ppData) {
92 ICOM_THIS(IDirectMusicBufferImpl,iface);
93 FIXME("(%p, %p): stub\n", This, ppData);
94 return S_OK;
97 HRESULT WINAPI IDirectMusicBufferImpl_GetStartTime (LPDIRECTMUSICBUFFER iface, LPREFERENCE_TIME prt) {
98 ICOM_THIS(IDirectMusicBufferImpl,iface);
99 FIXME("(%p, %p): stub\n", This, prt);
100 return S_OK;
103 HRESULT WINAPI IDirectMusicBufferImpl_GetUsedBytes (LPDIRECTMUSICBUFFER iface, LPDWORD pcb) {
104 ICOM_THIS(IDirectMusicBufferImpl,iface);
105 FIXME("(%p, %p): stub\n", This, pcb);
106 return S_OK;
109 HRESULT WINAPI IDirectMusicBufferImpl_GetMaxBytes (LPDIRECTMUSICBUFFER iface, LPDWORD pcb) {
110 ICOM_THIS(IDirectMusicBufferImpl,iface);
111 FIXME("(%p, %p): stub\n", This, pcb);
112 return S_OK;
115 HRESULT WINAPI IDirectMusicBufferImpl_GetBufferFormat (LPDIRECTMUSICBUFFER iface, LPGUID pGuidFormat) {
116 ICOM_THIS(IDirectMusicBufferImpl,iface);
117 FIXME("(%p, %p): stub\n", This, pGuidFormat);
118 return S_OK;
121 HRESULT WINAPI IDirectMusicBufferImpl_SetStartTime (LPDIRECTMUSICBUFFER iface, REFERENCE_TIME rt) {
122 ICOM_THIS(IDirectMusicBufferImpl,iface);
123 FIXME("(%p, %lli): stub\n", This, rt);
124 return S_OK;
127 HRESULT WINAPI IDirectMusicBufferImpl_SetUsedBytes (LPDIRECTMUSICBUFFER iface, DWORD cb) {
128 ICOM_THIS(IDirectMusicBufferImpl,iface);
129 FIXME("(%p, %ld): stub\n", This, cb);
130 return S_OK;
133 ICOM_VTABLE(IDirectMusicBuffer) DirectMusicBuffer_Vtbl = {
134 ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
135 IDirectMusicBufferImpl_QueryInterface,
136 IDirectMusicBufferImpl_AddRef,
137 IDirectMusicBufferImpl_Release,
138 IDirectMusicBufferImpl_Flush,
139 IDirectMusicBufferImpl_TotalTime,
140 IDirectMusicBufferImpl_PackStructured,
141 IDirectMusicBufferImpl_PackUnstructured,
142 IDirectMusicBufferImpl_ResetReadPtr,
143 IDirectMusicBufferImpl_GetNextEvent,
144 IDirectMusicBufferImpl_GetRawBufferPtr,
145 IDirectMusicBufferImpl_GetStartTime,
146 IDirectMusicBufferImpl_GetUsedBytes,
147 IDirectMusicBufferImpl_GetMaxBytes,
148 IDirectMusicBufferImpl_GetBufferFormat,
149 IDirectMusicBufferImpl_SetStartTime,
150 IDirectMusicBufferImpl_SetUsedBytes
153 /* for ClassFactory */
154 HRESULT WINAPI DMUSIC_CreateDirectMusicBufferImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
155 IDirectMusicBufferImpl* dmbuff;
157 dmbuff = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicBufferImpl));
158 if (NULL == dmbuff) {
159 *ppobj = (LPVOID) NULL;
160 return E_OUTOFMEMORY;
162 dmbuff->lpVtbl = &DirectMusicBuffer_Vtbl;
163 dmbuff->ref = 0; /* will be inited by QueryInterface */
165 return IDirectMusicBufferImpl_QueryInterface ((LPDIRECTMUSICBUFFER)dmbuff, lpcGUID, ppobj);