From: Rémi Bernon rbernon@codeweavers.com
--- dlls/dmloader/dmloader_private.h | 18 +- dlls/dmloader/loader.c | 105 ++++------ dlls/dmloader/loaderstream.c | 335 ++++++++++++++----------------- 3 files changed, 189 insertions(+), 269 deletions(-)
diff --git a/dlls/dmloader/dmloader_private.h b/dlls/dmloader/dmloader_private.h index 87fcf087bc0..c590040389b 100644 --- a/dlls/dmloader/dmloader_private.h +++ b/dlls/dmloader/dmloader_private.h @@ -59,25 +59,8 @@ typedef struct IDirectMusicLoaderGenericStream IDirectMusicLoaderGenericStream; */ extern HRESULT create_dmloader(REFIID riid, void **ret_iface); extern HRESULT create_dmcontainer(REFIID riid, void **ret_iface); -extern HRESULT DMUSIC_CreateDirectMusicLoaderFileStream(void **ppobj); extern HRESULT DMUSIC_CreateDirectMusicLoaderResourceStream(void **ppobj);
-/***************************************************************************** - * IDirectMusicLoaderFileStream implementation structure - */ -struct IDirectMusicLoaderFileStream { - /* VTABLEs */ - const IStreamVtbl *StreamVtbl; - /* reference counter */ - LONG dwRef; - /* file */ - WCHAR wzFileName[MAX_PATH]; /* for clone */ - HANDLE hFile; -}; - -/* Custom: */ -extern HRESULT WINAPI IDirectMusicLoaderFileStream_Attach(LPSTREAM iface, LPCWSTR wzFile); - /***************************************************************************** * IDirectMusicLoaderResourceStream implementation structure */ @@ -98,6 +81,7 @@ extern HRESULT WINAPI IDirectMusicLoaderResourceStream_Attach(LPSTREAM iface, LP LONGLONG llMemLength, LONGLONG llPos);
extern HRESULT loader_stream_create(IDirectMusicLoader *loader, IStream *stream, IStream **ret_iface); +extern HRESULT file_stream_create(const WCHAR *path, IStream **ret_iface);
#include "debug.h"
diff --git a/dlls/dmloader/loader.c b/dlls/dmloader/loader.c index ef1a8c3dfe0..9c97f47e5f7 100644 --- a/dlls/dmloader/loader.c +++ b/dlls/dmloader/loader.c @@ -305,40 +305,29 @@ static HRESULT WINAPI loader_GetObject(IDirectMusicLoader8 *iface, DMUS_OBJECTDE TRACE(": no cache/alias entry found for requested object\n"); } - if (pDesc->dwValidData & DMUS_OBJ_URL) { - TRACE(": loading from URLs not supported yet\n"); - return DMUS_E_LOADER_FORMATNOTSUPPORTED; - } - else if (pDesc->dwValidData & DMUS_OBJ_FILENAME) { - /* load object from file */ - /* generate filename; if it's full path, don't add search - directory path, otherwise do */ - WCHAR wszFileName[MAX_PATH]; - - if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) { - lstrcpyW(wszFileName, pDesc->wszFileName); - } else { - WCHAR *p; - get_search_path(This, &pDesc->guidClass, wszFileName); - p = wszFileName + lstrlenW(wszFileName); - if (p > wszFileName && p[-1] != '\') *p++ = '\'; - lstrcpyW(p, pDesc->wszFileName); - } - TRACE(": loading from file (%s)\n", debugstr_w(wszFileName)); - /* create stream and associate it with file */ - result = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream); - if (FAILED(result)) { - ERR(": could not create file stream\n"); - return result; - } - result = IDirectMusicLoaderFileStream_Attach(pStream, wszFileName); - if (FAILED(result)) - { - ERR(": could not attach stream to file\n"); - IStream_Release (pStream); - return result; - } - } + if (pDesc->dwValidData & DMUS_OBJ_URL) + { + TRACE(": loading from URLs not supported yet\n"); + return DMUS_E_LOADER_FORMATNOTSUPPORTED; + } + else if (pDesc->dwValidData & DMUS_OBJ_FILENAME) + { + WCHAR file_name[MAX_PATH]; + + if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) + lstrcpyW(file_name, pDesc->wszFileName); + else + { + WCHAR *p; + get_search_path(This, &pDesc->guidClass, file_name); + p = file_name + lstrlenW(file_name); + if (p > file_name && p[-1] != '\') *p++ = '\'; + lstrcpyW(p, pDesc->wszFileName); + } + + TRACE(": loading from file (%s)\n", debugstr_w(file_name)); + if (FAILED(hr = file_stream_create(file_name, &pStream))) return hr; + } else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) { /* load object from resource */ TRACE(": loading from resource\n"); @@ -363,9 +352,8 @@ static HRESULT WINAPI loader_GetObject(IDirectMusicLoader8 *iface, DMUS_OBJECTDE } else { - /* nowhere to load from */ FIXME(": unknown/unsupported way of loading\n"); - return DMUS_E_LOADER_NOFILENAME; /* test shows this is returned */ + return DMUS_E_LOADER_NOFILENAME; }
if (FAILED(hr = loader_stream_create((IDirectMusicLoader *)iface, pStream, &loader_stream))) @@ -459,36 +447,23 @@ static HRESULT WINAPI loader_SetObject(IDirectMusicLoader8 *iface, DMUS_OBJECTDE if (TRACE_ON(dmloader)) dump_DMUS_OBJECTDESC(pDesc);
- /* create stream and load additional info from it */ - if (pDesc->dwValidData & DMUS_OBJ_FILENAME) { - /* generate filename; if it's full path, don't add search - directory path, otherwise do */ - WCHAR wszFileName[MAX_PATH]; + if (pDesc->dwValidData & DMUS_OBJ_FILENAME) + { + WCHAR file_name[MAX_PATH];
- if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) { - lstrcpyW(wszFileName, pDesc->wszFileName); - } else { - WCHAR *p; - get_search_path(This, &pDesc->guidClass, wszFileName); - p = wszFileName + lstrlenW(wszFileName); - if (p > wszFileName && p[-1] != '\') *p++ = '\'; - lstrcpyW(p, pDesc->wszFileName); - } - /* create stream */ - hr = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream); - if (FAILED(hr)) { - ERR(": could not create file stream\n"); - return DMUS_E_LOADER_FAILEDOPEN; - } - /* attach stream */ - hr = IDirectMusicLoaderFileStream_Attach(pStream, wszFileName); - if (FAILED(hr)) - { - ERR(": could not attach stream to file %s, make sure it exists\n", debugstr_w(wszFileName)); - IStream_Release (pStream); - return DMUS_E_LOADER_FAILEDOPEN; - } - } + if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) + lstrcpyW(file_name, pDesc->wszFileName); + else + { + WCHAR *p; + get_search_path(This, &pDesc->guidClass, file_name); + p = file_name + lstrlenW(file_name); + if (p > file_name && p[-1] != '\') *p++ = '\'; + lstrcpyW(p, pDesc->wszFileName); + } + + if (FAILED(hr = file_stream_create(file_name, &pStream))) return hr; + } else if (pDesc->dwValidData & DMUS_OBJ_STREAM) { pStream = pDesc->pStream; diff --git a/dlls/dmloader/loaderstream.c b/dlls/dmloader/loaderstream.c index 5b7862c16f8..5d56965171a 100644 --- a/dlls/dmloader/loaderstream.c +++ b/dlls/dmloader/loaderstream.c @@ -1,8 +1,6 @@ -/* IDirectMusicLoaderFileStream - * IDirectMusicLoaderResourceStream - * IDirectMusicLoaderGenericStream - * +/* * Copyright (C) 2003-2004 Rok Mandeljc + * Copyright 2023 Rémi Bernon for CodeWeavers * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -19,31 +17,6 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */
- -/* SIDE NOTES: - * After extensive testing and structure dumping I came to a conclusion that - * DirectMusic as in present state implements three types of streams: - * 1. IDirectMusicLoaderFileStream: stream that was most obvious, since - * it's used for loading from files; it is sort of wrapper around - * CreateFile, ReadFile, WriteFile and SetFilePointer and it supports - * both read and write - * 2. IDirectMusicLoaderResourceStream: a stream that had to exist, since - * according to MSDN, IDirectMusicLoader supports loading from resource - * as well; in this case, data is represented as a big chunk of bytes, - * from which we "read" (copy) data and keep the trace of our position; - * it supports read only - * 3. IDirectMusicLoaderGenericStream: this one was the most problematic, - * since I thought it was URL-related; besides, there's no obvious need - * for it, since input streams can simply be cloned, lest loading from - * stream is requested; but if one really thinks about it, input stream - * could be none of 1. or 2.; in this case, a wrapper that offers - * IDirectMusicGetLoader interface would be nice, and this is what this - * stream is; as such, all functions are supported, as long as underlying - * ("low-level") stream supports them - * - * - Rok Mandeljc; 24. April, 2004 -*/ - #include "dmloader_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(dmloader); @@ -284,216 +257,204 @@ HRESULT loader_stream_create(IDirectMusicLoader *loader, IStream *stream, return S_OK; }
-static ULONG WINAPI IDirectMusicLoaderFileStream_IStream_AddRef (LPSTREAM iface); -static ULONG WINAPI IDirectMusicLoaderResourceStream_IStream_AddRef (LPSTREAM iface); - +struct file_stream +{ + IStream IStream_iface; + LONG ref;
-/***************************************************************************** - * IDirectMusicLoaderFileStream implementation - */ -/* Custom : */ + WCHAR path[MAX_PATH]; + HANDLE file; +};
-static void IDirectMusicLoaderFileStream_Detach (LPSTREAM iface) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - TRACE("(%p)\n", This); - if (This->hFile != INVALID_HANDLE_VALUE) CloseHandle(This->hFile); - This->wzFileName[0] = '\0'; +static struct file_stream *file_stream_from_IStream(IStream *iface) +{ + return CONTAINING_RECORD(iface, struct file_stream, IStream_iface); }
-HRESULT WINAPI IDirectMusicLoaderFileStream_Attach(LPSTREAM iface, LPCWSTR wzFile) +static HRESULT WINAPI file_stream_QueryInterface(IStream *iface, REFIID riid, void **ret_iface) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - TRACE("(%p, %s)\n", This, debugstr_w(wzFile)); - IDirectMusicLoaderFileStream_Detach (iface); - This->hFile = CreateFileW (wzFile, (GENERIC_READ | GENERIC_WRITE), (FILE_SHARE_READ | FILE_SHARE_WRITE), NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); - if (This->hFile == INVALID_HANDLE_VALUE) { - WARN(": failed\n"); - return DMUS_E_LOADER_FAILEDOPEN; - } - /* create IDirectMusicGetLoader */ - lstrcpynW (This->wzFileName, wzFile, MAX_PATH); - TRACE(": succeeded\n"); - return S_OK; -} + struct file_stream *This = file_stream_from_IStream(iface);
+ TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ret_iface);
-/* IUnknown/IStream part: */ -static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_QueryInterface (LPSTREAM iface, REFIID riid, void** ppobj) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - - TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj); - if (IsEqualIID (riid, &IID_IUnknown) || - IsEqualIID (riid, &IID_IStream)) { - *ppobj = &This->StreamVtbl; - IDirectMusicLoaderFileStream_IStream_AddRef ((LPSTREAM)&This->StreamVtbl); - return S_OK; - } + if (IsEqualGUID(riid, &IID_IUnknown) + || IsEqualGUID(riid, &IID_IStream)) + { + IStream_AddRef(&This->IStream_iface); + *ret_iface = &This->IStream_iface; + return S_OK; + }
- WARN(": not found\n"); - return E_NOINTERFACE; + WARN("(%p, %s, %p): not found\n", iface, debugstr_dmguid(riid), ret_iface); + *ret_iface = NULL; + return E_NOINTERFACE; }
-static ULONG WINAPI IDirectMusicLoaderFileStream_IStream_AddRef (LPSTREAM iface) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - TRACE("(%p): AddRef from %ld\n", This, This->dwRef); - return InterlockedIncrement (&This->dwRef); +static ULONG WINAPI file_stream_AddRef(IStream *iface) +{ + struct file_stream *This = file_stream_from_IStream(iface); + ULONG ref = InterlockedIncrement(&This->ref); + TRACE("(%p): new ref = %lu\n", This, ref); + return ref; }
-static ULONG WINAPI IDirectMusicLoaderFileStream_IStream_Release (LPSTREAM iface) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - - DWORD dwRef = InterlockedDecrement (&This->dwRef); - TRACE("(%p): ReleaseRef to %ld\n", This, dwRef); - if (dwRef == 0) { - if (This->hFile) - IDirectMusicLoaderFileStream_Detach (iface); - free(This); - } - - return dwRef; -} +static ULONG WINAPI file_stream_Release(IStream *iface) +{ + struct file_stream *This = file_stream_from_IStream(iface); + ULONG ref = InterlockedDecrement(&This->ref);
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Read (LPSTREAM iface, void* pv, ULONG cb, ULONG* pcbRead) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - ULONG cbRead; - - TRACE_(dmfileraw)("(%p, %p, %#lx, %p)\n", This, pv, cb, pcbRead); - 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; - - TRACE_(dmfileraw)(": data (size = %#lx): %s\n", *pcbRead, debugstr_an(pv, *pcbRead)); - return S_OK; + TRACE("(%p): new ref = %lu\n", This, ref); + + if (!ref) + { + CloseHandle(This->file); + free(This); + } + + return ref; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Seek (LPSTREAM iface, LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER* plibNewPosition) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - LARGE_INTEGER liNewPos; - - TRACE_(dmfileraw)("(%p, %s, %s, %p)\n", This, wine_dbgstr_longlong(dlibMove.QuadPart), resolve_STREAM_SEEK(dwOrigin), plibNewPosition); +static HRESULT WINAPI file_stream_Read(IStream *iface, void *data, ULONG size, ULONG *ret_size) +{ + struct file_stream *This = file_stream_from_IStream(iface); + DWORD dummy;
- if (This->hFile == INVALID_HANDLE_VALUE) return E_FAIL; + TRACE("(%p, %p, %#lx, %p)\n", This, data, size, ret_size);
- liNewPos.HighPart = dlibMove.HighPart; - liNewPos.LowPart = SetFilePointer (This->hFile, dlibMove.LowPart, &liNewPos.HighPart, dwOrigin); + if (!ret_size) ret_size = &dummy; + if (!ReadFile(This->file, data, size, ret_size, NULL)) return HRESULT_FROM_WIN32(GetLastError()); + return *ret_size == size ? S_OK : S_FALSE; +}
- if (liNewPos.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) return E_FAIL; - if (plibNewPosition) plibNewPosition->QuadPart = liNewPos.QuadPart; - - return S_OK; +static HRESULT WINAPI file_stream_Write(IStream *iface, const void *data, ULONG size, ULONG *ret_size) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); + return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Clone (LPSTREAM iface, IStream** ppstm) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - LPSTREAM pOther = NULL; - HRESULT result; +static HRESULT WINAPI file_stream_Seek(IStream *iface, LARGE_INTEGER offset, DWORD method, ULARGE_INTEGER *ret_offset) +{ + struct file_stream *This = file_stream_from_IStream(iface); + DWORD position;
- TRACE("(%p, %p)\n", iface, ppstm); - result = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pOther); - if (FAILED(result)) return result; - if (This->hFile != INVALID_HANDLE_VALUE) { - ULARGE_INTEGER ullCurrentPosition; - result = IDirectMusicLoaderFileStream_Attach(pOther, This->wzFileName); - if (SUCCEEDED(result)) - { - LARGE_INTEGER liZero; - liZero.QuadPart = 0; - result = IDirectMusicLoaderFileStream_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 = IDirectMusicLoaderFileStream_IStream_Seek (pOther, liNewPosition, STREAM_SEEK_SET, &ullCurrentPosition); - } - if (FAILED(result)) { - TRACE(": failed\n"); - IDirectMusicLoaderFileStream_IStream_Release (pOther); - return result; - } - } - TRACE(": succeeded\n"); - *ppstm = pOther; - return S_OK; -} + TRACE("(%p, %I64d, %#lx, %p)\n", This, offset.QuadPart, method, ret_offset);
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Write (LPSTREAM iface, const void* pv, ULONG cb, ULONG* pcbWritten) { - ICOM_THIS_MULTI(IDirectMusicLoaderFileStream, StreamVtbl, iface); - ULONG cbWrite; - - TRACE_(dmfileraw)("(%p, %p, %#lx, %p)\n", This, pv, cb, pcbWritten); - if (This->hFile == INVALID_HANDLE_VALUE) return E_FAIL; - if (pcbWritten == NULL) pcbWritten = &cbWrite; - if (!WriteFile (This->hFile, pv, cb, pcbWritten, NULL) || *pcbWritten != cb) return E_FAIL; - - TRACE_(dmfileraw)(": data (size = %#lx): %s\n", *pcbWritten, debugstr_an(pv, *pcbWritten)); + position = SetFilePointer(This->file, offset.u.LowPart, NULL, method); + if (position == INVALID_SET_FILE_POINTER) return HRESULT_FROM_WIN32(GetLastError()); + if (ret_offset) ret_offset->QuadPart = position; return S_OK; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_SetSize (LPSTREAM iface, ULARGE_INTEGER libNewSize) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_SetSize(IStream *iface, ULARGE_INTEGER size) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_CopyTo (LPSTREAM iface, IStream* pstm, ULARGE_INTEGER cb, ULARGE_INTEGER* pcbRead, ULARGE_INTEGER* pcbWritten) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_CopyTo(IStream *iface, IStream *dest, ULARGE_INTEGER size, + ULARGE_INTEGER *read_size, ULARGE_INTEGER *write_size) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Commit (LPSTREAM iface, DWORD grfCommitFlags) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_Commit(IStream *iface, DWORD flags) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Revert (LPSTREAM iface) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_Revert(IStream *iface) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_LockRegion (LPSTREAM iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_LockRegion(IStream *iface, ULARGE_INTEGER offset, ULARGE_INTEGER size, DWORD type) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_UnlockRegion (LPSTREAM iface, ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_UnlockRegion(IStream *iface, ULARGE_INTEGER offset, + ULARGE_INTEGER size, DWORD type) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static HRESULT WINAPI IDirectMusicLoaderFileStream_IStream_Stat (LPSTREAM iface, STATSTG* pstatstg, DWORD grfStatFlag) { - ERR(": should not be needed\n"); +static HRESULT WINAPI file_stream_Stat(IStream *iface, STATSTG *stat, DWORD flags) +{ + struct file_stream *This = file_stream_from_IStream(iface); + FIXME("(%p): stub\n", This); return E_NOTIMPL; }
-static const IStreamVtbl DirectMusicLoaderFileStream_Stream_Vtbl = { - IDirectMusicLoaderFileStream_IStream_QueryInterface, - IDirectMusicLoaderFileStream_IStream_AddRef, - IDirectMusicLoaderFileStream_IStream_Release, - IDirectMusicLoaderFileStream_IStream_Read, - IDirectMusicLoaderFileStream_IStream_Write, - IDirectMusicLoaderFileStream_IStream_Seek, - IDirectMusicLoaderFileStream_IStream_SetSize, - IDirectMusicLoaderFileStream_IStream_CopyTo, - IDirectMusicLoaderFileStream_IStream_Commit, - IDirectMusicLoaderFileStream_IStream_Revert, - IDirectMusicLoaderFileStream_IStream_LockRegion, - IDirectMusicLoaderFileStream_IStream_UnlockRegion, - IDirectMusicLoaderFileStream_IStream_Stat, - IDirectMusicLoaderFileStream_IStream_Clone -}; +static HRESULT WINAPI file_stream_Clone(IStream *iface, IStream **ret_iface) +{ + struct file_stream *This = file_stream_from_IStream(iface); + HRESULT hr;
-HRESULT DMUSIC_CreateDirectMusicLoaderFileStream (void** ppobj) { - IDirectMusicLoaderFileStream *obj; + TRACE("(%p, %p)\n", This, ret_iface);
- TRACE("(%p)\n", ppobj); + if (SUCCEEDED(hr = file_stream_create(This->path, ret_iface))) + { + LARGE_INTEGER position = {0}; + position.LowPart = SetFilePointer(This->file, 0, NULL, SEEK_CUR); + hr = IStream_Seek(*ret_iface, position, SEEK_SET, NULL); + }
- *ppobj = NULL; - if (!(obj = calloc(1, sizeof(*obj)))) return E_OUTOFMEMORY; - obj->StreamVtbl = &DirectMusicLoaderFileStream_Stream_Vtbl; - obj->dwRef = 0; /* will be inited with QueryInterface */ + return hr; +} + +static const IStreamVtbl file_stream_vtbl = +{ + file_stream_QueryInterface, + file_stream_AddRef, + file_stream_Release, + file_stream_Read, + file_stream_Write, + file_stream_Seek, + file_stream_SetSize, + file_stream_CopyTo, + file_stream_Commit, + file_stream_Revert, + file_stream_LockRegion, + file_stream_UnlockRegion, + file_stream_Stat, + file_stream_Clone, +};
- return IDirectMusicLoaderFileStream_IStream_QueryInterface ((LPSTREAM)&obj->StreamVtbl, &IID_IStream, ppobj); +HRESULT file_stream_create(const WCHAR *path, IStream **ret_iface) +{ + struct file_stream *stream; + + *ret_iface = NULL; + if (!(stream = calloc(1, sizeof(*stream)))) return E_OUTOFMEMORY; + stream->IStream_iface.lpVtbl = &file_stream_vtbl; + stream->ref = 1; + + wcscpy(stream->path, path); + stream->file = CreateFileW(path, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, + OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); + if (stream->file == INVALID_HANDLE_VALUE) + { + free(stream); + return E_FAIL; + } + + *ret_iface = &stream->IStream_iface; + return S_OK; }
+static ULONG WINAPI IDirectMusicLoaderResourceStream_IStream_AddRef (LPSTREAM iface);
/***************************************************************************** * IDirectMusicLoaderResourceStream implementation