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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. */
#ifndef _NINE_IUNKNOWN_H_
#define _NINE_IUNKNOWN_H_
#include "pipe/p_compiler.h"
#include "util/u_memory.h"
#include "guid.h"
#include "nine_debug.h"
#include "nine_quirk.h"
#include "d3d9.h"
struct Nine9;
struct NineDevice9;
struct NineUnknown
{
/* pointer to vtable */
void *vtable;
int32_t refs; /* external reference count */
int32_t bind; /* internal bind count */
boolean forward; /* whether to forward references to the container */
struct NineUnknown *container; /* referenced if (refs | bind) */
struct NineDevice9 *device; /* referenced if (refs) */
const GUID **guids; /* for QueryInterface */
void (*dtor)(void *data); /* top-level dtor */
};
static inline struct NineUnknown *
NineUnknown( void *data )
{
return (struct NineUnknown *)data;
}
/* Use this instead of a shitload of arguments: */
struct NineUnknownParams
{
void *vtable;
const GUID **guids;
void (*dtor)(void *data);
struct NineUnknown *container;
struct NineDevice9 *device;
};
HRESULT
NineUnknown_ctor( struct NineUnknown *This,
struct NineUnknownParams *pParams );
void
NineUnknown_dtor( struct NineUnknown *This );
/*** Direct3D public methods ***/
HRESULT WINAPI
NineUnknown_QueryInterface( struct NineUnknown *This,
REFIID riid,
void **ppvObject );
ULONG WINAPI
NineUnknown_AddRef( struct NineUnknown *This );
ULONG WINAPI
NineUnknown_Release( struct NineUnknown *This );
HRESULT WINAPI
NineUnknown_GetDevice( struct NineUnknown *This,
IDirect3DDevice9 **ppDevice );
/*** Nine private methods ***/
static inline void
NineUnknown_Destroy( struct NineUnknown *This )
{
assert(!(This->refs | This->bind));
This->dtor(This);
}
static inline UINT
NineUnknown_Bind( struct NineUnknown *This )
{
UINT b = ++This->bind;
assert(b);
if (b == 1 && This->container) {
if (This->container != NineUnknown(This->device))
NineUnknown_Bind(This->container);
}
return b;
}
static inline UINT
NineUnknown_Unbind( struct NineUnknown *This )
{
UINT b = --This->bind;
if (!b) {
if (This->container) {
if (This->container != NineUnknown(This->device))
NineUnknown_Unbind(This->container);
} else
if (This->refs == 0) {
This->dtor(This);
}
}
return b;
}
static inline void
NineUnknown_ConvertRefToBind( struct NineUnknown *This )
{
NineUnknown_Bind(This);
NineUnknown_Release(This);
}
/* Detach from container. */
static inline void
NineUnknown_Detach( struct NineUnknown *This )
{
assert(This->container && !This->forward);
if (This->refs)
NineUnknown_Unbind(This->container);
if (This->bind)
NineUnknown_Unbind(This->container);
This->container = NULL;
if (!(This->refs | This->bind))
This->dtor(This);
}
#endif /* _NINE_IUNKNOWN_H_ */
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