wine/dlls/dmloader/loaderstream.c

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/* ILoaderStream Implementation
*
* Copyright (C) 2003 Rok Mandeljc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "dmloader_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(dmloader);
/*****************************************************************************
* Custom functions:
*/
HRESULT WINAPI ILoaderStream_Attach (ILoaderStream* This, LPCWSTR wzFile, IDirectMusicLoader *pLoader)
{
TRACE("(%p, %s, %p)\n", This, debugstr_w(wzFile), pLoader);
ILoaderStream_Detach (This);
This->hFile = CreateFileW (wzFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (This->hFile == INVALID_HANDLE_VALUE) {
TRACE(": failed\n");
return E_FAIL;
}
/* create IDirectMusicGetLoader */
(LPDIRECTMUSICLOADER) This->pLoader = pLoader;
strncpyW (This->wzFileName, wzFile, MAX_PATH);
TRACE(": succeeded\n");
return S_OK;
}
void WINAPI ILoaderStream_Detach (ILoaderStream* This)
{
if (This->hFile != INVALID_HANDLE_VALUE) {
CloseHandle(This->hFile);
}
This->wzFileName[0] = (L'\0');
}
/*****************************************************************************
* ILoaderStream IStream:
*/
HRESULT WINAPI ILoaderStream_IStream_QueryInterface (LPSTREAM iface, REFIID riid, void** ppobj)
{
ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
if (IsEqualIID (riid, &IID_IUnknown)
|| IsEqualIID (riid, &IID_IStream)) {
*ppobj = (LPVOID)&This->StreamVtbl;
ILoaderStream_IStream_AddRef (iface);
return S_OK;
} else if (IsEqualIID (riid, &IID_IDirectMusicGetLoader)) {
*ppobj = (LPVOID)&This->GetLoaderVtbl;
ILoaderStream_IStream_AddRef (iface);
return S_OK;
}
WARN("(%p)->(%s,%p),not found\n", This, debugstr_guid(riid), ppobj);
return E_NOINTERFACE;
}
ULONG WINAPI ILoaderStream_IStream_AddRef (LPSTREAM iface)
{
ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
TRACE("(%p) : AddRef from %ld\n", This, This->ref);
return ++(This->ref);
}
ULONG WINAPI ILoaderStream_IStream_Release (LPSTREAM iface)
{
ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
ULONG ref = --This->ref;
TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
if (ref == 0) {
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
HRESULT WINAPI ILoaderStream_IStream_Read (LPSTREAM iface, void* pv, ULONG cb, ULONG* pcbRead)
{
ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
ULONG cbRead;
if (This->hFile == INVALID_HANDLE_VALUE) return E_FAIL;
if (pcbRead == NULL) pcbRead = &cbRead;
if (!ReadFile (This->hFile, pv, cb, pcbRead, NULL) || *pcbRead != cb) return E_FAIL;
return S_OK;
}
HRESULT WINAPI ILoaderStream_IStream_Seek (LPSTREAM iface, LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER* plibNewPosition)
{
ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
LARGE_INTEGER liNewPos;
if (This->hFile == INVALID_HANDLE_VALUE) return E_FAIL;
liNewPos.s.HighPart = dlibMove.s.HighPart;
liNewPos.s.LowPart = SetFilePointer (This->hFile, dlibMove.s.LowPart, &liNewPos.s.HighPart, dwOrigin);
if (liNewPos.s.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) return E_FAIL;
if (plibNewPosition) plibNewPosition->QuadPart = liNewPos.QuadPart;
return S_OK;
}
HRESULT WINAPI ILoaderStream_IStream_Clone (LPSTREAM iface, IStream** ppstm)
{
ICOM_THIS_MULTI(ILoaderStream, StreamVtbl, iface);
ILoaderStream* pOther = NULL;
HRESULT result;
TRACE("(%p, %p)\n", iface, ppstm);
result = DMUSIC_CreateLoaderStream ((LPSTREAM*)&pOther);
if (FAILED(result)) return result;
if (This->hFile != INVALID_HANDLE_VALUE) {
ULARGE_INTEGER ullCurrentPosition;
result = ILoaderStream_Attach (pOther, This->wzFileName, (LPDIRECTMUSICLOADER)This->pLoader);
if (SUCCEEDED(result)) {
LARGE_INTEGER liZero;
liZero.QuadPart = 0;
result = ILoaderStream_IStream_Seek (iface, liZero, STREAM_SEEK_CUR, &ullCurrentPosition); /* get current position in current stream */
}
if (SUCCEEDED(result)) {
LARGE_INTEGER liNewPosition;
liNewPosition.QuadPart = ullCurrentPosition.QuadPart;
result = ILoaderStream_IStream_Seek ((LPSTREAM)pOther, liNewPosition, STREAM_SEEK_SET, &ullCurrentPosition);
}
if (FAILED(result)) {
TRACE(": failed\n");
ILoaderStream_IStream_Release ((LPSTREAM)pOther);
return result;
}
}
TRACE(": succeeded\n");
*ppstm = (IStream*)pOther;
return S_OK;
}
/* not needed*/
HRESULT WINAPI ILoaderStream_IStream_Write (LPSTREAM iface, const void* pv, ULONG cb, ULONG* pcbWritten)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_SetSize (LPSTREAM iface, ULARGE_INTEGER libNewSize)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_CopyTo (LPSTREAM iface, IStream* pstm, ULARGE_INTEGER cb, ULARGE_INTEGER* pcbRead, ULARGE_INTEGER* pcbWritten)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_Commit (LPSTREAM iface, DWORD grfCommitFlags)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_Revert (LPSTREAM iface)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_LockRegion (LPSTREAM iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_UnlockRegion (LPSTREAM iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
HRESULT WINAPI ILoaderStream_IStream_Stat (LPSTREAM iface, STATSTG* pstatstg, DWORD grfStatFlag)
{
ERR(": should not be needed\n");
return E_NOTIMPL;
}
ICOM_VTABLE(IStream) LoaderStream_Stream_Vtbl =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
ILoaderStream_IStream_QueryInterface,
ILoaderStream_IStream_AddRef,
ILoaderStream_IStream_Release,
ILoaderStream_IStream_Read,
ILoaderStream_IStream_Write,
ILoaderStream_IStream_Seek,
ILoaderStream_IStream_SetSize,
ILoaderStream_IStream_CopyTo,
ILoaderStream_IStream_Commit,
ILoaderStream_IStream_Revert,
ILoaderStream_IStream_LockRegion,
ILoaderStream_IStream_UnlockRegion,
ILoaderStream_IStream_Stat,
ILoaderStream_IStream_Clone
};
/*****************************************************************************
* ILoaderStream IDirectMusicGetLoader:
*/
HRESULT WINAPI ILoaderStream_IDirectMusicGetLoader_QueryInterface (LPDIRECTMUSICGETLOADER iface, REFIID riid, void** ppobj)
{
ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
return ILoaderStream_IStream_QueryInterface ((LPSTREAM)&This->StreamVtbl, riid, ppobj);
}
ULONG WINAPI ILoaderStream_IDirectMusicGetLoader_AddRef (LPDIRECTMUSICGETLOADER iface)
{
ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
return ILoaderStream_IStream_AddRef ((LPSTREAM)&This->StreamVtbl);
}
ULONG WINAPI ILoaderStream_IDirectMusicGetLoader_Release (LPDIRECTMUSICGETLOADER iface)
{
ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
return ILoaderStream_IStream_Release ((LPSTREAM)&This->StreamVtbl);
}
HRESULT WINAPI ILoaderStream_IDirectMusicGetLoader_GetLoader (LPDIRECTMUSICGETLOADER iface, IDirectMusicLoader **ppLoader)
{
ICOM_THIS_MULTI(ILoaderStream, GetLoaderVtbl, iface);
TRACE("(%p, %p)\n", This, ppLoader);
*ppLoader = (LPDIRECTMUSICLOADER)This->pLoader;
IDirectMusicLoader8_AddRef ((LPDIRECTMUSICLOADER8)*ppLoader);
return S_OK;
}
ICOM_VTABLE(IDirectMusicGetLoader) LoaderStream_GetLoader_Vtbl =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
ILoaderStream_IDirectMusicGetLoader_QueryInterface,
ILoaderStream_IDirectMusicGetLoader_AddRef,
ILoaderStream_IDirectMusicGetLoader_Release,
ILoaderStream_IDirectMusicGetLoader_GetLoader
};
HRESULT WINAPI DMUSIC_CreateLoaderStream (LPSTREAM* ppStream)
{
ILoaderStream *pStream;
TRACE("(%p)\n", ppStream);
pStream = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(ILoaderStream));
if (NULL == pStream) {
*ppStream = (LPSTREAM)NULL;
return E_OUTOFMEMORY;
}
pStream->StreamVtbl = &LoaderStream_Stream_Vtbl;
pStream->GetLoaderVtbl = &LoaderStream_GetLoader_Vtbl;
pStream->ref = 1;
*ppStream = (LPSTREAM)pStream;
return S_OK;
}