download.c 3.1 KB
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/* IDirectMusicDownload Implementation
 *
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 * Copyright (C) 2003-2004 Rok Mandeljc
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 *
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 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
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 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

#include "dmusic_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dmusic);

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/* IDirectMusicDownloadImpl IUnknown part: */
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static HRESULT WINAPI IDirectMusicDownloadImpl_QueryInterface (LPDIRECTMUSICDOWNLOAD iface, REFIID riid, LPVOID *ppobj) {
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	IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
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	TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
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	if (IsEqualIID (riid, &IID_IUnknown) 
		|| IsEqualIID (riid, &IID_IDirectMusicDownload)) {
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		IUnknown_AddRef(iface);
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		*ppobj = This;
		return S_OK;
	}
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	WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
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	return E_NOINTERFACE;
}

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static ULONG WINAPI IDirectMusicDownloadImpl_AddRef (LPDIRECTMUSICDOWNLOAD iface) {
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	IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
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	ULONG refCount = InterlockedIncrement(&This->ref);

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	TRACE("(%p)->(ref before=%u)\n", This, refCount - 1);
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	DMUSIC_LockModule();

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	return refCount;
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}

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static ULONG WINAPI IDirectMusicDownloadImpl_Release (LPDIRECTMUSICDOWNLOAD iface) {
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	IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
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	ULONG refCount = InterlockedDecrement(&This->ref);

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	TRACE("(%p)->(ref before=%u)\n", This, refCount + 1);
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	if (!refCount) {
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		HeapFree(GetProcessHeap(), 0, This);
	}
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	DMUSIC_UnlockModule();
	
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	return refCount;
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}

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/* IDirectMusicDownloadImpl IDirectMusicDownload part: */
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static HRESULT WINAPI IDirectMusicDownloadImpl_GetBuffer (LPDIRECTMUSICDOWNLOAD iface, void** ppvBuffer, DWORD* pdwSize) {
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	IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
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	FIXME("(%p, %p, %p): stub\n", This, ppvBuffer, pdwSize);
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	return S_OK;
}

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static const IDirectMusicDownloadVtbl DirectMusicDownload_Vtbl = {
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	IDirectMusicDownloadImpl_QueryInterface,
	IDirectMusicDownloadImpl_AddRef,
	IDirectMusicDownloadImpl_Release,
	IDirectMusicDownloadImpl_GetBuffer
};

/* for ClassFactory */
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HRESULT DMUSIC_CreateDirectMusicDownloadImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
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	IDirectMusicDownloadImpl* dmdl;
	
	dmdl = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicDownloadImpl));
	if (NULL == dmdl) {
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		*ppobj = NULL;
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		return E_OUTOFMEMORY;
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	}
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	dmdl->lpVtbl = &DirectMusicDownload_Vtbl;
	dmdl->ref = 0; /* will be inited by QueryInterface */
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	return IDirectMusicDownloadImpl_QueryInterface ((LPDIRECTMUSICDOWNLOAD)dmdl, lpcGUID, ppobj);
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}