msxml3: Protect from null pointer in load().
[wine.git] / dlls / d3d9 / stateblock.c
blob8ec8db9d3b9df251c5d43a51f8842a96e08f3fbe
1 /*
2 * IDirect3DStateBlock9 implementation
4 * Copyright 2002-2003 Raphael Junqueira
5 * Copyright 2002-2003 Jason Edmeades
6 * Copyright 2005 Oliver Stieber
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "config.h"
24 #include "d3d9_private.h"
26 WINE_DEFAULT_DEBUG_CHANNEL(d3d9);
28 static inline struct d3d9_stateblock *impl_from_IDirect3DStateBlock9(IDirect3DStateBlock9 *iface)
30 return CONTAINING_RECORD(iface, struct d3d9_stateblock, IDirect3DStateBlock9_iface);
33 static HRESULT WINAPI d3d9_stateblock_QueryInterface(IDirect3DStateBlock9 *iface, REFIID riid, void **out)
35 TRACE("iface %p, riid %s, out %p.\n", iface, debugstr_guid(riid), out);
37 if (IsEqualGUID(riid, &IID_IDirect3DStateBlock9)
38 || IsEqualGUID(riid, &IID_IUnknown))
40 IDirect3DStateBlock9_AddRef(iface);
41 *out = iface;
42 return S_OK;
45 WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
47 *out = NULL;
48 return E_NOINTERFACE;
51 static ULONG WINAPI d3d9_stateblock_AddRef(IDirect3DStateBlock9 *iface)
53 struct d3d9_stateblock *stateblock = impl_from_IDirect3DStateBlock9(iface);
54 ULONG refcount = InterlockedIncrement(&stateblock->refcount);
56 TRACE("%p increasing refcount to %u.\n", iface, refcount);
58 return refcount;
61 static ULONG WINAPI d3d9_stateblock_Release(IDirect3DStateBlock9 *iface)
63 struct d3d9_stateblock *stateblock = impl_from_IDirect3DStateBlock9(iface);
64 ULONG refcount = InterlockedDecrement(&stateblock->refcount);
66 TRACE("%p decreasing refcount to %u.\n", iface, refcount);
68 if (!refcount)
70 wined3d_mutex_lock();
71 wined3d_stateblock_decref(stateblock->wined3d_stateblock);
72 wined3d_mutex_unlock();
74 IDirect3DDevice9Ex_Release(stateblock->parent_device);
75 HeapFree(GetProcessHeap(), 0, stateblock);
78 return refcount;
81 static HRESULT WINAPI d3d9_stateblock_GetDevice(IDirect3DStateBlock9 *iface, IDirect3DDevice9 **device)
83 struct d3d9_stateblock *stateblock = impl_from_IDirect3DStateBlock9(iface);
85 TRACE("iface %p, device %p.\n", iface, device);
87 *device = (IDirect3DDevice9 *)stateblock->parent_device;
88 IDirect3DDevice9_AddRef(*device);
90 TRACE("Returning device %p.\n", *device);
92 return D3D_OK;
95 static HRESULT WINAPI d3d9_stateblock_Capture(IDirect3DStateBlock9 *iface)
97 struct d3d9_stateblock *stateblock = impl_from_IDirect3DStateBlock9(iface);
98 HRESULT hr;
100 TRACE("iface %p.\n", iface);
102 wined3d_mutex_lock();
103 hr = wined3d_stateblock_capture(stateblock->wined3d_stateblock);
104 wined3d_mutex_unlock();
106 return hr;
109 static HRESULT WINAPI d3d9_stateblock_Apply(IDirect3DStateBlock9 *iface)
111 struct d3d9_stateblock *stateblock = impl_from_IDirect3DStateBlock9(iface);
112 HRESULT hr;
114 TRACE("iface %p.\n", iface);
116 wined3d_mutex_lock();
117 hr = wined3d_stateblock_apply(stateblock->wined3d_stateblock);
118 wined3d_mutex_unlock();
120 return hr;
124 static const struct IDirect3DStateBlock9Vtbl d3d9_stateblock_vtbl =
126 /* IUnknown */
127 d3d9_stateblock_QueryInterface,
128 d3d9_stateblock_AddRef,
129 d3d9_stateblock_Release,
130 /* IDirect3DStateBlock9 */
131 d3d9_stateblock_GetDevice,
132 d3d9_stateblock_Capture,
133 d3d9_stateblock_Apply,
136 HRESULT stateblock_init(struct d3d9_stateblock *stateblock, struct d3d9_device *device,
137 D3DSTATEBLOCKTYPE type, struct wined3d_stateblock *wined3d_stateblock)
139 HRESULT hr;
141 stateblock->IDirect3DStateBlock9_iface.lpVtbl = &d3d9_stateblock_vtbl;
142 stateblock->refcount = 1;
144 if (wined3d_stateblock)
146 stateblock->wined3d_stateblock = wined3d_stateblock;
148 else
150 wined3d_mutex_lock();
151 hr = wined3d_stateblock_create(device->wined3d_device,
152 (enum wined3d_stateblock_type)type, &stateblock->wined3d_stateblock);
153 wined3d_mutex_unlock();
154 if (FAILED(hr))
156 WARN("Failed to create wined3d stateblock, hr %#x.\n", hr);
157 return hr;
161 stateblock->parent_device = &device->IDirect3DDevice9Ex_iface;
162 IDirect3DDevice9Ex_AddRef(stateblock->parent_device);
164 return D3D_OK;