1 /* DirectDrawClipper implementation
3 * Copyright 2000 (c) Marcus Meissner
4 * Copyright 2000 (c) TransGaming Technologies Inc.
5 * Copyright 2006 (c) Stefan Dösinger
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "wine/port.h"
25 #include "ddraw_private.h"
27 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
29 static inline IDirectDrawClipperImpl *impl_from_IDirectDrawClipper(IDirectDrawClipper *iface)
31 return CONTAINING_RECORD(iface, IDirectDrawClipperImpl, IDirectDrawClipper_iface);
34 /*****************************************************************************
35 * IDirectDrawClipper::QueryInterface
37 * Can query the IUnknown and IDirectDrawClipper interface from a
38 * Clipper object. The IUnknown Interface is equal to the IDirectDrawClipper
39 * interface. Can't create other interfaces.
42 * riid: Interface id asked for
43 * ppvObj: Returns the pointer to the interface
47 * E_NOINTERFACE if the requested interface wasn't found.
49 *****************************************************************************/
50 static HRESULT WINAPI IDirectDrawClipperImpl_QueryInterface(IDirectDrawClipper *iface, REFIID riid,
54 TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), ppvObj);
56 if (IsEqualGUID(&IID_IDirectDrawClipper, riid)
57 || IsEqualGUID(&IID_IUnknown, riid))
59 IUnknown_AddRef(iface);
67 /*****************************************************************************
68 * IDirectDrawClipper::AddRef
70 * Increases the reference count of the interface, returns the new count
72 *****************************************************************************/
73 static ULONG WINAPI IDirectDrawClipperImpl_AddRef(IDirectDrawClipper *iface)
75 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
76 ULONG ref = InterlockedIncrement(&This->ref);
78 TRACE("%p increasing refcount to %u.\n", This, ref);
83 /*****************************************************************************
84 * IDirectDrawClipper::Release
86 * Decreases the reference count of the interface, returns the new count
87 * If the refcount is decreased to 0, the interface is destroyed.
89 *****************************************************************************/
90 static ULONG WINAPI IDirectDrawClipperImpl_Release(IDirectDrawClipper *iface)
92 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
93 ULONG ref = InterlockedDecrement(&This->ref);
95 TRACE("%p decreasing refcount to %u.\n", This, ref);
99 EnterCriticalSection(&ddraw_cs);
100 wined3d_clipper_decref(This->wineD3DClipper);
101 HeapFree(GetProcessHeap(), 0, This);
102 LeaveCriticalSection(&ddraw_cs);
108 /*****************************************************************************
109 * IDirectDrawClipper::SetHwnd
111 * Assigns a hWnd to the clipper interface.
114 * Flags: Unsupported so far
115 * hWnd: The hWnd to set
119 * DDERR_INVALIDPARAMS if Flags was != 0
121 *****************************************************************************/
123 static HRESULT WINAPI IDirectDrawClipperImpl_SetHwnd(IDirectDrawClipper *iface, DWORD dwFlags,
126 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
129 TRACE("iface %p, flags %#x, window %p.\n", iface, dwFlags, hWnd);
131 EnterCriticalSection(&ddraw_cs);
132 hr = wined3d_clipper_set_window(This->wineD3DClipper, dwFlags, hWnd);
133 LeaveCriticalSection(&ddraw_cs);
136 case WINED3DERR_INVALIDCALL: return DDERR_INVALIDPARAMS;
141 /*****************************************************************************
142 * IDirectDrawClipper::GetClipList
144 * Retrieve a copy of the clip list
147 * Rect: Rectangle to be used to clip the clip list or NULL for the
149 * ClipList: structure for the resulting copy of the clip list.
150 * If NULL, fills Size up to the number of bytes necessary to hold
152 * Size: Size of resulting clip list; size of the buffer at ClipList
153 * or, if ClipList is NULL, receives the required size of the buffer
157 * Either DD_OK or DDERR_*
158 ************************************************************************/
159 static HRESULT WINAPI IDirectDrawClipperImpl_GetClipList(IDirectDrawClipper *iface, RECT *lpRect,
160 RGNDATA *lpClipList, DWORD *lpdwSize)
162 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
165 TRACE("iface %p, rect %s, clip_list %p, clip_list_size %p.\n",
166 iface, wine_dbgstr_rect(lpRect), lpClipList, lpdwSize);
168 EnterCriticalSection(&ddraw_cs);
169 hr = wined3d_clipper_get_clip_list(This->wineD3DClipper, lpRect, lpClipList, lpdwSize);
170 LeaveCriticalSection(&ddraw_cs);
174 /*****************************************************************************
175 * IDirectDrawClipper::SetClipList
177 * Sets or deletes (if lprgn is NULL) the clip list
179 * This implementation is a stub and returns DD_OK always to make the app
183 * lprgn Pointer to a LRGNDATA structure or NULL
184 * dwFlags not used, must be 0
186 * Either DD_OK or DDERR_*
187 *****************************************************************************/
188 static HRESULT WINAPI IDirectDrawClipperImpl_SetClipList(IDirectDrawClipper *iface, RGNDATA *lprgn,
191 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
194 TRACE("iface %p, clip_list %p, flags %#x.\n", iface, lprgn, dwFlag);
196 EnterCriticalSection(&ddraw_cs);
197 hr = wined3d_clipper_set_clip_list(This->wineD3DClipper, lprgn, dwFlag);
198 LeaveCriticalSection(&ddraw_cs);
202 /*****************************************************************************
203 * IDirectDrawClipper::GetHwnd
205 * Returns the hwnd assigned with SetHwnd
208 * hWndPtr: Address to store the HWND at
211 * Always returns DD_OK;
212 *****************************************************************************/
213 static HRESULT WINAPI IDirectDrawClipperImpl_GetHWnd(IDirectDrawClipper *iface, HWND *hWndPtr)
215 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
218 TRACE("iface %p, window %p.\n", iface, hWndPtr);
220 EnterCriticalSection(&ddraw_cs);
221 hr = wined3d_clipper_get_window(This->wineD3DClipper, hWndPtr);
222 LeaveCriticalSection(&ddraw_cs);
226 /*****************************************************************************
227 * IDirectDrawClipper::Initialize
229 * Initializes the interface. Well, there isn't much to do for this
230 * implementation, but it stores the DirectDraw Interface.
233 * DD: Pointer to a IDirectDraw interface
234 * Flags: Unsupported by now
238 * DDERR_ALREADYINITIALIZED if this interface isn't initialized already
239 *****************************************************************************/
240 static HRESULT WINAPI IDirectDrawClipperImpl_Initialize(IDirectDrawClipper *iface,
241 IDirectDraw *ddraw, DWORD dwFlags)
243 IDirectDrawClipperImpl *This = impl_from_IDirectDrawClipper(iface);
245 TRACE("iface %p, ddraw %p, flags %#x.\n", iface, ddraw, dwFlags);
247 EnterCriticalSection(&ddraw_cs);
248 if (This->initialized)
250 LeaveCriticalSection(&ddraw_cs);
251 return DDERR_ALREADYINITIALIZED;
254 This->initialized = TRUE;
256 LeaveCriticalSection(&ddraw_cs);
260 /*****************************************************************************
261 * IDirectDrawClipper::IsClipListChanged
263 * This function is a stub
269 * DD_OK, because it's a stub
270 *****************************************************************************/
271 static HRESULT WINAPI IDirectDrawClipperImpl_IsClipListChanged(IDirectDrawClipper *iface,
274 FIXME("iface %p, changed %p stub!\n", iface, lpbChanged);
276 /* XXX What is safest? */
282 /*****************************************************************************
284 *****************************************************************************/
285 static const struct IDirectDrawClipperVtbl ddraw_clipper_vtbl =
287 IDirectDrawClipperImpl_QueryInterface,
288 IDirectDrawClipperImpl_AddRef,
289 IDirectDrawClipperImpl_Release,
290 IDirectDrawClipperImpl_GetClipList,
291 IDirectDrawClipperImpl_GetHWnd,
292 IDirectDrawClipperImpl_Initialize,
293 IDirectDrawClipperImpl_IsClipListChanged,
294 IDirectDrawClipperImpl_SetClipList,
295 IDirectDrawClipperImpl_SetHwnd
298 HRESULT ddraw_clipper_init(IDirectDrawClipperImpl *clipper)
300 clipper->IDirectDrawClipper_iface.lpVtbl = &ddraw_clipper_vtbl;
302 clipper->wineD3DClipper = wined3d_clipper_create();
303 if (!clipper->wineD3DClipper)
305 WARN("Failed to create wined3d clipper.\n");
306 return E_OUTOFMEMORY;
312 IDirectDrawClipperImpl *unsafe_impl_from_IDirectDrawClipper(IDirectDrawClipper *iface)
316 assert(iface->lpVtbl == &ddraw_clipper_vtbl);
318 return impl_from_IDirectDrawClipper(iface);