1 /* DirectDrawClipper implementation
3 * Copyright 2000 Marcus Meissner
4 * Copyright 2000 TransGaming Technologies Inc.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 #include "ddraw_private.h"
35 #include "wine/debug.h"
37 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
39 /******************************************************************************
40 * DirectDrawCreateClipper (DDRAW.@)
43 static const IDirectDrawClipperVtbl DDRAW_Clipper_VTable;
45 HRESULT WINAPI DirectDrawCreateClipper(
46 DWORD dwFlags, LPDIRECTDRAWCLIPPER *lplpDDClipper, LPUNKNOWN pUnkOuter
48 IDirectDrawClipperImpl* This;
49 TRACE("(%08lx,%p,%p)\n", dwFlags, lplpDDClipper, pUnkOuter);
51 if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
53 This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
54 sizeof(IDirectDrawClipperImpl));
55 if (This == NULL) return E_OUTOFMEMORY;
57 ICOM_INIT_INTERFACE(This, IDirectDrawClipper, DDRAW_Clipper_VTable);
60 This->ddraw_owner = NULL;
62 *lplpDDClipper = ICOM_INTERFACE(This, IDirectDrawClipper);
66 /* This is the classfactory implementation. */
67 HRESULT DDRAW_CreateDirectDrawClipper(IUnknown* pUnkOuter, REFIID riid,
71 LPDIRECTDRAWCLIPPER pClip;
73 hr = DirectDrawCreateClipper(0, &pClip, pUnkOuter);
74 if (FAILED(hr)) return hr;
76 hr = IDirectDrawClipper_QueryInterface(pClip, riid, ppObj);
77 IDirectDrawClipper_Release(pClip);
81 /******************************************************************************
84 HRESULT WINAPI Main_DirectDrawClipper_SetHwnd(
85 LPDIRECTDRAWCLIPPER iface, DWORD dwFlags, HWND hWnd
87 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
89 TRACE("(%p)->(0x%08lx,0x%08lx)\n", This, dwFlags, (DWORD)hWnd);
91 FIXME("dwFlags = 0x%08lx, not supported.\n",dwFlags);
92 return DDERR_INVALIDPARAMS;
99 static void Main_DirectDrawClipper_Destroy(IDirectDrawClipperImpl* This)
101 if (This->ddraw_owner != NULL)
102 Main_DirectDraw_RemoveClipper(This->ddraw_owner, This);
104 HeapFree(GetProcessHeap(), 0 ,This);
107 void Main_DirectDrawClipper_ForceDestroy(IDirectDrawClipperImpl* This)
109 WARN("deleting clipper %p with refcnt %lu\n", This, This->ref);
110 Main_DirectDrawClipper_Destroy(This);
113 ULONG WINAPI Main_DirectDrawClipper_Release(LPDIRECTDRAWCLIPPER iface) {
114 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
115 ULONG ref = InterlockedDecrement(&This->ref);
117 TRACE("(%p)->() decrementing from %lu.\n", This, ref + 1);
121 Main_DirectDrawClipper_Destroy(This);
127 /***********************************************************************
128 * IDirectDrawClipper::GetClipList
130 * Retrieve a copy of the clip list
133 * lpRect Rectangle to be used to clip the clip list or NULL for the
135 * lpClipList structure for the resulting copy of the clip list.
136 If NULL, fills lpdwSize up to the number of bytes necessary to hold
138 * lpdwSize Size of resulting clip list; size of the buffer at lpClipList
139 or, if lpClipList is NULL, receives the required size of the buffer
142 * Either DD_OK or DDERR_*
144 HRESULT WINAPI Main_DirectDrawClipper_GetClipList(
145 LPDIRECTDRAWCLIPPER iface, LPRECT lpRect, LPRGNDATA lpClipList,
148 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
150 TRACE("(%p,%p,%p,%p)\n", This, lpRect, lpClipList, lpdwSize);
154 HDC hDC = GetDCEx(This->hWnd, NULL, DCX_WINDOW);
157 HRGN hRgn = CreateRectRgn(0,0,0,0);
158 if (GetRandomRgn(hDC, hRgn, SYSRGN))
160 if (GetVersion() & 0x80000000)
162 /* map region to screen coordinates */
164 GetDCOrgEx( hDC, &org );
165 OffsetRgn( hRgn, org.x, org.y );
169 HRGN hRgnClip = CreateRectRgn(lpRect->left, lpRect->top,
170 lpRect->right, lpRect->bottom);
171 CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
172 DeleteObject(hRgnClip);
174 *lpdwSize = GetRegionData(hRgn, *lpdwSize, lpClipList);
177 ReleaseDC(This->hWnd, hDC);
183 static int warned = 0;
185 FIXME("(%p,%p,%p,%p),stub!\n",This,lpRect,lpClipList,lpdwSize);
186 if (lpdwSize) *lpdwSize=0;
187 return DDERR_NOCLIPLIST;
191 /***********************************************************************
192 * IDirectDrawClipper::SetClipList
194 * Sets or deletes (if lprgn is NULL) the clip list
197 * lprgn Pointer to a LRGNDATA structure or NULL
198 * dwFlags not used, must be 0
200 * Either DD_OK or DDERR_*
202 HRESULT WINAPI Main_DirectDrawClipper_SetClipList(
203 LPDIRECTDRAWCLIPPER iface,LPRGNDATA lprgn,DWORD dwFlag
205 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
206 static int warned = 0;
207 if (warned++ < 10 || lprgn == NULL)
208 FIXME("(%p,%p,%ld),stub!\n",This,lprgn,dwFlag);
212 HRESULT WINAPI Main_DirectDrawClipper_QueryInterface(
213 LPDIRECTDRAWCLIPPER iface, REFIID riid, LPVOID* ppvObj
215 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
217 if (IsEqualGUID(&IID_IUnknown, riid)
218 || IsEqualGUID(&IID_IDirectDrawClipper, riid))
220 *ppvObj = ICOM_INTERFACE(This, IDirectDrawClipper);
221 InterlockedIncrement(&This->ref);
226 return E_NOINTERFACE;
230 ULONG WINAPI Main_DirectDrawClipper_AddRef( LPDIRECTDRAWCLIPPER iface )
232 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
233 ULONG ref = InterlockedIncrement(&This->ref);
235 TRACE("(%p)->() incrementing from %lu.\n", This, ref - 1);
240 HRESULT WINAPI Main_DirectDrawClipper_GetHWnd(
241 LPDIRECTDRAWCLIPPER iface, HWND* hWndPtr
243 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
244 TRACE("(%p)->(%p)\n", This, hWndPtr);
246 *hWndPtr = This->hWnd;
251 HRESULT WINAPI Main_DirectDrawClipper_Initialize(
252 LPDIRECTDRAWCLIPPER iface, LPDIRECTDRAW lpDD, DWORD dwFlags
254 IDirectDrawImpl* pOwner;
255 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
256 TRACE("(%p)->(%p,0x%08lx)\n", This, lpDD, dwFlags);
258 if (This->ddraw_owner != NULL) return DDERR_ALREADYINITIALIZED;
260 pOwner = ICOM_OBJECT(IDirectDrawImpl, IDirectDraw, lpDD);
261 This->ddraw_owner = pOwner;
262 Main_DirectDraw_AddClipper(pOwner, This);
267 HRESULT WINAPI Main_DirectDrawClipper_IsClipListChanged(
268 LPDIRECTDRAWCLIPPER iface, BOOL* lpbChanged
270 IDirectDrawClipperImpl *This = (IDirectDrawClipperImpl *)iface;
271 FIXME("(%p)->(%p),stub!\n",This,lpbChanged);
273 /* XXX What is safest? */
279 static const IDirectDrawClipperVtbl DDRAW_Clipper_VTable =
281 Main_DirectDrawClipper_QueryInterface,
282 Main_DirectDrawClipper_AddRef,
283 Main_DirectDrawClipper_Release,
284 Main_DirectDrawClipper_GetClipList,
285 Main_DirectDrawClipper_GetHWnd,
286 Main_DirectDrawClipper_Initialize,
287 Main_DirectDrawClipper_IsClipListChanged,
288 Main_DirectDrawClipper_SetClipList,
289 Main_DirectDrawClipper_SetHwnd