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/*
* Copyright 2011 Joakim Sindholt <opensource@zhasha.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "iunknown.h"
#include "util/u_atomic.h"
#include "nine_helpers.h"
#define DBG_CHANNEL DBG_UNKNOWN
HRESULT
NineUnknown_ctor( struct NineUnknown *This,
struct NineUnknownParams *pParams )
{
This->refs = pParams->container ? 0 : 1;
This->bind = 0;
This->forward = !This->refs;
This->container = pParams->container;
This->device = pParams->device;
if (This->refs && This->device)
NineUnknown_AddRef(NineUnknown(This->device));
This->vtable = pParams->vtable;
This->guids = pParams->guids;
This->dtor = pParams->dtor;
return D3D_OK;
}
void
NineUnknown_dtor( struct NineUnknown *This )
{
FREE(This);
}
HRESULT NINE_WINAPI
NineUnknown_QueryInterface( struct NineUnknown *This,
REFIID riid,
void **ppvObject )
{
unsigned i = 0;
DBG("This=%p riid=%p ppvObject=%p\n", This, riid, ppvObject);
if (!ppvObject) return E_POINTER;
do {
if (GUID_equal(This->guids[i], riid)) {
*ppvObject = This;
assert(This->refs);
NineUnknown_AddRef(This);
return S_OK;
}
} while (This->guids[++i]);
*ppvObject = NULL;
return E_NOINTERFACE;
}
ULONG NINE_WINAPI
NineUnknown_AddRef( struct NineUnknown *This )
{
ULONG r;
if (This->forward)
return NineUnknown_AddRef(This->container);
else
r = p_atomic_inc_return(&This->refs);
if (r == 1) {
if (This->device)
NineUnknown_AddRef(NineUnknown(This->device));
/* This shouldn't be necessary:
if (This->container)
NineUnknown_Bind(NineUnknown(This->container)); */
}
return r;
}
ULONG NINE_WINAPI
NineUnknown_Release( struct NineUnknown *This )
{
if (This->forward)
return NineUnknown_Release(This->container);
ULONG r = p_atomic_dec_return(&This->refs);
if (r == 0) {
if (This->device) {
if (NineUnknown_Release(NineUnknown(This->device)) == 0)
return r; /* everything's gone */
}
if (This->container) {
/* NineUnknown_Unbind(NineUnknown(This->container)); */
} else
if (This->bind == 0) {
This->dtor(This);
}
}
return r;
}
HRESULT NINE_WINAPI
NineUnknown_GetDevice( struct NineUnknown *This,
IDirect3DDevice9 **ppDevice )
{
user_assert(ppDevice, E_POINTER);
NineUnknown_AddRef(NineUnknown(This->device));
*ppDevice = (IDirect3DDevice9 *)This->device;
return D3D_OK;
}
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