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   1 /* ILoaderStream Implementation
   2  *
   3  * Copyright (C) 2003-2004 Rok Mandeljc
   4  *
   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.
   9  *
  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.
  14  *
  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.
  18  */
  19
  20 #define NONAMELESSUNION
  21 #define NONAMELESSSTRUCT
  22
  23 #include "dmloader_private.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(dmloader);
  26 WINE_DECLARE_DEBUG_CHANNEL(dmfileraw);
  27
  28 /*****************************************************************************
  29  * Custom functions:
  30  */
  31 HRESULT WINAPI ILoaderStream_Attach (LPSTREAM iface, LPCWSTR wzFile, IDirectMusicLoader *pLoader) {
  32         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
  33     TRACE("(%p, %s, %p)\n", This, debugstr_w(wzFile), pLoader);
  34     ILoaderStream_Detach (iface);
  35     This->hFile = CreateFileW (wzFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
  36     if (This->hFile == INVALID_HANDLE_VALUE) {
  37         TRACE(": failed\n");
  38         return DMUS_E_LOADER_FAILEDOPEN;
  39     }
  40     /* create IDirectMusicGetLoader */
  41     (LPDIRECTMUSICLOADER) This->pLoader = pLoader;
  42     strncpyW (This->wzFileName, wzFile, MAX_PATH);
  43     TRACE(": succeeded\n");
  44     return S_OK;
  45 }
  46
  47 void WINAPI ILoaderStream_Detach (LPSTREAM iface) {
  48         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
  49         if (This->hFile != INVALID_HANDLE_VALUE) {
  50         CloseHandle(This->hFile);
  51     }
  52     This->wzFileName[0] = (L'\0');
  53 }
  54
  55 /*****************************************************************************
  56  * ILoaderStream implementation
  57  */
  58 /* ILoaderStream IUnknown part: */
  59 HRESULT WINAPI ILoaderStream_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, void** ppobj) {
  60         ICOM_THIS_MULTI(ILoaderStream, UnknownVtbl, iface);
  61
  62         TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
  63         if (IsEqualIID (riid, &IID_IUnknown)) {
  64                 *ppobj = (LPVOID)&This->UnknownVtbl;
  65                 ILoaderStream_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
  66                 return S_OK;
  67         } else if (IsEqualIID (riid, &IID_IStream)) {
  68                 *ppobj = (LPVOID)&This->StreamVtbl;
  69                 ILoaderStream_IStream_AddRef ((LPSTREAM)&This->StreamVtbl);
  70                 return S_OK;
  71         } else if (IsEqualIID (riid, &IID_IDirectMusicGetLoader)) {
  72                 *ppobj = (LPVOID)&This->GetLoaderVtbl;
  73                 ILoaderStream_IDirectMusicGetLoader_AddRef ((LPDIRECTMUSICGETLOADER)&This->GetLoaderVtbl);
  74                 return S_OK;
  75         }
  76
  77         WARN("(%p, %s,%p): not found\n", This, debugstr_dmguid(riid), ppobj);
  78         return E_NOINTERFACE;
  79 }
  80
  81 ULONG WINAPI ILoaderStream_IUnknown_AddRef (LPUNKNOWN iface) {
  82         ICOM_THIS_MULTI(ILoaderStream, UnknownVtbl, iface);
  83         TRACE("(%p): AddRef from %ld\n", This, This->ref);
  84         return ++(This->ref);
  85 }
  86
  87 ULONG WINAPI ILoaderStream_IUnknown_Release (LPUNKNOWN iface) {
  88         ICOM_THIS_MULTI(ILoaderStream, UnknownVtbl, iface);
  89         ULONG ref = --This->ref;
  90         TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
  91         if (ref == 0) {
  92                 HeapFree(GetProcessHeap(), 0, This);
  93         }
  94         return ref;
  95 }
  96
  97 ICOM_VTABLE(IUnknown) LoaderStream_Unknown_Vtbl = {
  98     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  99         ILoaderStream_IUnknown_QueryInterface,
 100         ILoaderStream_IUnknown_AddRef,
 101         ILoaderStream_IUnknown_Release
 102 };
 103
 104 /* ILoaderStream IStream part: */
 105 HRESULT WINAPI ILoaderStream_IStream_QueryInterface (LPSTREAM iface, REFIID riid, void** ppobj) {
 106         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
 107         return ILoaderStream_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
 108 }
 109
 110 ULONG WINAPI ILoaderStream_IStream_AddRef (LPSTREAM iface) {
 111         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
 112         return ILoaderStream_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
 113 }
 114
 115 ULONG WINAPI ILoaderStream_IStream_Release (LPSTREAM iface) {
 116         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
 117         return ILoaderStream_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
 118 }
 119
 120 HRESULT WINAPI ILoaderStream_IStream_Read (LPSTREAM iface, void* pv, ULONG cb, ULONG* pcbRead) {
 121         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
 122     ULONG cbRead;
 123         TRACE_(dmfileraw)("(%p, %p, 0x%04lx, %p)\n", This, pv, cb, pcbRead);
 124     if (This->hFile == INVALID_HANDLE_VALUE) return E_FAIL;
 125     if (pcbRead == NULL) pcbRead = &cbRead;
 126     if (!ReadFile (This->hFile, pv, cb, pcbRead, NULL) || *pcbRead != cb) return E_FAIL;
 127         TRACE_(dmfileraw)(": data (size = 0x%04lx): '%s'\n", *pcbRead, debugstr_an(pv, *pcbRead));
 128     return S_OK;
 129 }
 130
 131 HRESULT WINAPI ILoaderStream_IStream_Seek (LPSTREAM iface, LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER* plibNewPosition) {
 132         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
 133     LARGE_INTEGER liNewPos;
 134
 135         TRACE_(dmfileraw)("(%p, 0x%04llx, %s, %p)\n", This, dlibMove.QuadPart, resolve_STREAM_SEEK(dwOrigin), plibNewPosition);
 136
 137         if (This->hFile == INVALID_HANDLE_VALUE) return E_FAIL;
 138
 139     liNewPos.u.HighPart = dlibMove.u.HighPart;
 140     liNewPos.u.LowPart = SetFilePointer (This->hFile, dlibMove.u.LowPart, &liNewPos.u.HighPart, dwOrigin);
 141
 142     if (liNewPos.u.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) return E_FAIL;
 143     if (plibNewPosition) plibNewPosition->QuadPart = liNewPos.QuadPart;
 144
 145     return S_OK;
 146 }
 147
 148 HRESULT WINAPI ILoaderStream_IStream_Clone (LPSTREAM iface, IStream** ppstm) {
 149         ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
 150         LPSTREAM pOther = NULL;
 151         HRESULT result;
 152
 153         TRACE("(%p, %p)\n", iface, ppstm);
 154         result = DMUSIC_CreateLoaderStream ((LPVOID*)&pOther);
 155         if (FAILED(result)) return result;
 156         if (This->hFile != INVALID_HANDLE_VALUE) {
 157                 ULARGE_INTEGER ullCurrentPosition;
 158                 result = ILoaderStream_Attach (pOther, This->wzFileName, (LPDIRECTMUSICLOADER)This->pLoader);
 159                 if (SUCCEEDED(result)) {
 160                         LARGE_INTEGER liZero;
 161                         liZero.QuadPart = 0;
 162                         result = ILoaderStream_IStream_Seek (iface, liZero, STREAM_SEEK_CUR, &ullCurrentPosition); /* get current position in current stream */
 163         }
 164                 if (SUCCEEDED(result)) {
 165                         LARGE_INTEGER liNewPosition;
 166                         liNewPosition.QuadPart = ullCurrentPosition.QuadPart;
 167                         result = ILoaderStream_IStream_Seek ((LPSTREAM)pOther, liNewPosition, STREAM_SEEK_SET, &ullCurrentPosition);
 168                 }
 169                 if (FAILED(result)) {
 170                         TRACE(": failed\n");
 171                         ILoaderStream_IStream_Release ((LPSTREAM)pOther);
 172                         return result;
 173                 }
 174         }
 175         TRACE(": succeeded\n");
 176         *ppstm = (IStream*)pOther;
 177         return S_OK;
 178 }
 179
 180 HRESULT WINAPI ILoaderStream_IStream_Write (LPSTREAM iface, const void* pv, ULONG cb, ULONG* pcbWritten) {
 181         ERR(": should not be needed\n");
 182         return E_NOTIMPL;
 183 }
 184
 185 HRESULT WINAPI ILoaderStream_IStream_SetSize (LPSTREAM iface, ULARGE_INTEGER libNewSize) {
 186         ERR(": should not be needed\n");
 187     return E_NOTIMPL;
 188 }
 189
 190 HRESULT WINAPI ILoaderStream_IStream_CopyTo (LPSTREAM iface, IStream* pstm, ULARGE_INTEGER cb, ULARGE_INTEGER* pcbRead, ULARGE_INTEGER* pcbWritten) {
 191         ERR(": should not be needed\n");
 192     return E_NOTIMPL;
 193 }
 194
 195 HRESULT WINAPI ILoaderStream_IStream_Commit (LPSTREAM iface, DWORD grfCommitFlags) {
 196         ERR(": should not be needed\n");
 197     return E_NOTIMPL;
 198 }
 199
 200 HRESULT WINAPI ILoaderStream_IStream_Revert (LPSTREAM iface) {
 201         ERR(": should not be needed\n");
 202     return E_NOTIMPL;
 203 }
 204
 205 HRESULT WINAPI ILoaderStream_IStream_LockRegion (LPSTREAM iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) {
 206         ERR(": should not be needed\n");
 207     return E_NOTIMPL;
 208 }
 209
 210 HRESULT WINAPI ILoaderStream_IStream_UnlockRegion (LPSTREAM iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) {
 211         ERR(": should not be needed\n");
 212     return E_NOTIMPL;
 213 }
 214
 215 HRESULT WINAPI ILoaderStream_IStream_Stat (LPSTREAM iface, STATSTG* pstatstg, DWORD grfStatFlag) {
 216         ERR(": should not be needed\n");
 217     return E_NOTIMPL;
 218 }
 219
 220 ICOM_VTABLE(IStream) LoaderStream_Stream_Vtbl = {
 221     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 222         ILoaderStream_IStream_QueryInterface,
 223         ILoaderStream_IStream_AddRef,
 224         ILoaderStream_IStream_Release,
 225         ILoaderStream_IStream_Read,
 226         ILoaderStream_IStream_Write,
 227         ILoaderStream_IStream_Seek,
 228         ILoaderStream_IStream_SetSize,
 229         ILoaderStream_IStream_CopyTo,
 230         ILoaderStream_IStream_Commit,
 231         ILoaderStream_IStream_Revert,
 232         ILoaderStream_IStream_LockRegion,
 233         ILoaderStream_IStream_UnlockRegion,
 234         ILoaderStream_IStream_Stat,
 235         ILoaderStream_IStream_Clone
 236 };
 237
 238 /*****************************************************************************
 239  * ILoaderStream IDirectMusicGetLoader part:
 240  */
 241 HRESULT WINAPI ILoaderStream_IDirectMusicGetLoader_QueryInterface (LPDIRECTMUSICGETLOADER iface, REFIID riid, void** ppobj) {
 242         ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
 243         return ILoaderStream_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
 244 }
 245
 246 ULONG WINAPI ILoaderStream_IDirectMusicGetLoader_AddRef (LPDIRECTMUSICGETLOADER iface) {
 247         ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
 248         return ILoaderStream_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
 249 }
 250
 251 ULONG WINAPI ILoaderStream_IDirectMusicGetLoader_Release (LPDIRECTMUSICGETLOADER iface) {
 252         ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
 253         return ILoaderStream_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
 254 }
 255
 256 HRESULT WINAPI ILoaderStream_IDirectMusicGetLoader_GetLoader (LPDIRECTMUSICGETLOADER iface, IDirectMusicLoader **ppLoader) {
 257         ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
 258
 259         TRACE("(%p, %p)\n", This, ppLoader);
 260         *ppLoader = (LPDIRECTMUSICLOADER)This->pLoader;
 261         IDirectMusicLoader8_AddRef ((LPDIRECTMUSICLOADER8)*ppLoader);
 262
 263         return S_OK;
 264 }
 265
 266 ICOM_VTABLE(IDirectMusicGetLoader) LoaderStream_GetLoader_Vtbl = {
 267     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 268         ILoaderStream_IDirectMusicGetLoader_QueryInterface,
 269         ILoaderStream_IDirectMusicGetLoader_AddRef,
 270         ILoaderStream_IDirectMusicGetLoader_Release,
 271         ILoaderStream_IDirectMusicGetLoader_GetLoader
 272 };
 273
 274 HRESULT WINAPI DMUSIC_CreateLoaderStream (LPVOID* ppobj) {
 275         ILoaderStream *pStream;
 276
 277         TRACE("(%p)\n", ppobj);
 278         pStream = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(ILoaderStream));
 279         if (NULL == pStream) {
 280                 *ppobj = (LPVOID) NULL;
 281                 return E_OUTOFMEMORY;
 282         }
 283         pStream->UnknownVtbl = &LoaderStream_Unknown_Vtbl;
 284         pStream->StreamVtbl = &LoaderStream_Stream_Vtbl;
 285         pStream->GetLoaderVtbl = &LoaderStream_GetLoader_Vtbl;
 286         pStream->ref = 0; /* will be inited with QueryInterface */
 287
 288         return ILoaderStream_IUnknown_QueryInterface ((LPUNKNOWN)&pStream->UnknownVtbl, &IID_IStream, ppobj);
 289 }