ReactOS 0.4.15-dev-7674-gc0b4db1
clipper.c
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1/* DirectDrawClipper implementation
2 *
3 * Copyright 2000 (c) Marcus Meissner
4 * Copyright 2000 (c) TransGaming Technologies Inc.
5 * Copyright 2006 (c) Stefan Dösinger
6 *
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.
11 *
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.
16 *
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
20 */
21
22#include "config.h"
23#include "wine/port.h"
24
25#include "ddraw_private.h"
26
28
29static inline struct ddraw_clipper *impl_from_IDirectDrawClipper(IDirectDrawClipper *iface)
30{
32}
33
34static HRESULT WINAPI ddraw_clipper_QueryInterface(IDirectDrawClipper *iface, REFIID iid, void **object)
35{
36 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
37
38 TRACE("iface %p, iid %s, object %p.\n", iface, debugstr_guid(iid), object);
39
40 if (IsEqualGUID(&IID_IDirectDrawClipper, iid)
41 || IsEqualGUID(&IID_IUnknown, iid))
42 {
43 IDirectDrawClipper_AddRef(&clipper->IDirectDrawClipper_iface);
44 *object = &clipper->IDirectDrawClipper_iface;
45 return S_OK;
46 }
47
48 WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(iid));
49 *object = NULL;
50
51 return E_NOINTERFACE;
52}
53
54static ULONG WINAPI ddraw_clipper_AddRef(IDirectDrawClipper *iface)
55{
56 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
57 ULONG refcount = InterlockedIncrement(&clipper->ref);
58
59 TRACE("%p increasing refcount to %u.\n", clipper, refcount);
60
61 return refcount;
62}
63
64static ULONG WINAPI ddraw_clipper_Release(IDirectDrawClipper *iface)
65{
66 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
67 ULONG refcount = InterlockedDecrement(&clipper->ref);
68
69 TRACE("%p decreasing refcount to %u.\n", clipper, refcount);
70
71 if (!refcount)
72 {
73 if (clipper->region)
74 DeleteObject(clipper->region);
75 heap_free(clipper);
76 }
77
78 return refcount;
79}
80
81static HRESULT WINAPI ddraw_clipper_SetHWnd(IDirectDrawClipper *iface, DWORD flags, HWND window)
82{
83 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
84
85 TRACE("iface %p, flags %#x, window %p.\n", iface, flags, window);
86
87 if (flags)
88 {
89 FIXME("flags %#x, not supported.\n", flags);
91 }
92
94 clipper->window = window;
96
97 return DD_OK;
98}
99
101{
103 HRGN rgn;
104 HDC dc;
105
106 if (!(dc = GetDC(window)))
107 {
108 WARN("Failed to get dc.\n");
109 return NULL;
110 }
111
112 if (!(rgn = CreateRectRgn(0, 0, 0, 0)))
113 {
114 ERR("Failed to create region.\n");
116 return NULL;
117 }
118
119 if (GetRandomRgn(dc, rgn, SYSRGN) != 1)
120 {
121 ERR("Failed to get window region.\n");
122 DeleteObject(rgn);
124 return NULL;
125 }
126
127 if (GetVersion() & 0x80000000)
128 {
130 OffsetRgn(rgn, origin.x, origin.y);
131 }
132
134 return rgn;
135}
136
137/*****************************************************************************
138 * IDirectDrawClipper::GetClipList
139 *
140 * Retrieve a copy of the clip list
141 *
142 * Arguments:
143 * rect: Rectangle to be used to clip the clip list or NULL for the
144 * entire clip list.
145 * clip_list: structure for the resulting copy of the clip list.
146 * If NULL, fills Size up to the number of bytes necessary to hold
147 * the entire clip.
148 * clip_list_size: Size of resulting clip list; size of the buffer at clip_list
149 * or, if clip_list is NULL, receives the required size of the buffer
150 * in bytes.
151 *
152 * RETURNS
153 * Either DD_OK or DDERR_*
154 ************************************************************************/
155static HRESULT WINAPI ddraw_clipper_GetClipList(IDirectDrawClipper *iface, RECT *rect,
156 RGNDATA *clip_list, DWORD *clip_list_size)
157{
158 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
159 HRGN region;
160
161 TRACE("iface %p, rect %s, clip_list %p, clip_list_size %p.\n",
162 iface, wine_dbgstr_rect(rect), clip_list, clip_list_size);
163
165
166 if (clipper->window)
167 {
168 if (!(region = get_window_region(clipper->window)))
169 {
171 WARN("Failed to get window region.\n");
172 return E_FAIL;
173 }
174 }
175 else
176 {
177 if (!(region = clipper->region))
178 {
180 WARN("No clip list set.\n");
181 return DDERR_NOCLIPLIST;
182 }
183 }
184
185 if (rect)
186 {
187 HRGN clip_region;
188
189 if (!(clip_region = CreateRectRgnIndirect(rect)))
190 {
192 ERR("Failed to create region.\n");
193 if (clipper->window)
195 return E_FAIL;
196 }
197
198 if (CombineRgn(clip_region, region, clip_region, RGN_AND) == ERROR)
199 {
201 ERR("Failed to combine regions.\n");
202 DeleteObject(clip_region);
203 if (clipper->window)
205 return E_FAIL;
206 }
207
208 if (clipper->window)
210 region = clip_region;
211 }
212
213 *clip_list_size = GetRegionData(region, *clip_list_size, clip_list);
214 if (rect || clipper->window)
216
218 return DD_OK;
219}
220
221/*****************************************************************************
222 * IDirectDrawClipper::SetClipList
223 *
224 * Sets or deletes (if region is NULL) the clip list
225 *
226 * This implementation is a stub and returns DD_OK always to make the app
227 * happy.
228 *
229 * PARAMS
230 * region Pointer to a LRGNDATA structure or NULL
231 * flags not used, must be 0
232 * RETURNS
233 * Either DD_OK or DDERR_*
234 *****************************************************************************/
236{
237 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
238
239 TRACE("iface %p, region %p, flags %#x.\n", iface, region, flags);
240
242
243 if (clipper->window)
244 {
247 }
248
249 if (clipper->region)
250 DeleteObject(clipper->region);
251 if (!region)
252 clipper->region = NULL;
253 else if (!(clipper->region = ExtCreateRegion(NULL, 0, region)))
254 {
256 ERR("Failed to create region.\n");
257 return E_FAIL;
258 }
259
261
262 return DD_OK;
263}
264
265static HRESULT WINAPI ddraw_clipper_GetHWnd(IDirectDrawClipper *iface, HWND *window)
266{
267 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
268
269 TRACE("iface %p, window %p.\n", iface, window);
270
272 *window = clipper->window;
274
275 return DD_OK;
276}
277
278static HRESULT WINAPI ddraw_clipper_Initialize(IDirectDrawClipper *iface,
279 IDirectDraw *ddraw, DWORD flags)
280{
281 struct ddraw_clipper *clipper = impl_from_IDirectDrawClipper(iface);
282
283 TRACE("iface %p, ddraw %p, flags %#x.\n", iface, ddraw, flags);
284
286 if (clipper->initialized)
287 {
290 }
291
292 clipper->initialized = TRUE;
294
295 return DD_OK;
296}
297
298static HRESULT WINAPI ddraw_clipper_IsClipListChanged(IDirectDrawClipper *iface, BOOL *changed)
299{
300 FIXME("iface %p, changed %p stub!\n", iface, changed);
301
302 /* XXX What is safest? */
303 *changed = FALSE;
304
305 return DD_OK;
306}
307
308static const struct IDirectDrawClipperVtbl ddraw_clipper_vtbl =
309{
319};
320
322{
324 clipper->ref = 1;
325
326 return DD_OK;
327}
328
329struct ddraw_clipper *unsafe_impl_from_IDirectDrawClipper(IDirectDrawClipper *iface)
330{
331 if (!iface)
332 return NULL;
333 assert(iface->lpVtbl == &ddraw_clipper_vtbl);
334
335 return impl_from_IDirectDrawClipper(iface);
336}
#define SYSRGN
Definition: GetRandomRgn.c:13
static BOOL heap_free(void *mem)
Definition: appwiz.h:76
#define InterlockedIncrement
Definition: armddk.h:53
#define InterlockedDecrement
Definition: armddk.h:52
static const char * wine_dbgstr_rect(const RECT *prc)
Definition: atltest.h:160
#define WINE_DEFAULT_DEBUG_CHANNEL(t)
Definition: precomp.h:23
const GUID IID_IUnknown
#define FIXME(fmt,...)
Definition: debug.h:111
#define WARN(fmt,...)
Definition: debug.h:112
#define ERR(fmt,...)
Definition: debug.h:110
#define E_FAIL
Definition: ddrawi.h:102
static HRESULT WINAPI ddraw_clipper_GetHWnd(IDirectDrawClipper *iface, HWND *window)
Definition: clipper.c:265
static HRESULT WINAPI ddraw_clipper_GetClipList(IDirectDrawClipper *iface, RECT *rect, RGNDATA *clip_list, DWORD *clip_list_size)
Definition: clipper.c:155
static HRESULT WINAPI ddraw_clipper_IsClipListChanged(IDirectDrawClipper *iface, BOOL *changed)
Definition: clipper.c:298
static HRGN get_window_region(HWND window)
Definition: clipper.c:100
static HRESULT WINAPI ddraw_clipper_SetHWnd(IDirectDrawClipper *iface, DWORD flags, HWND window)
Definition: clipper.c:81
HRESULT ddraw_clipper_init(struct ddraw_clipper *clipper)
Definition: clipper.c:321
static ULONG WINAPI ddraw_clipper_AddRef(IDirectDrawClipper *iface)
Definition: clipper.c:54
static ULONG WINAPI ddraw_clipper_Release(IDirectDrawClipper *iface)
Definition: clipper.c:64
struct ddraw_clipper * unsafe_impl_from_IDirectDrawClipper(IDirectDrawClipper *iface)
Definition: clipper.c:329
static HRESULT WINAPI ddraw_clipper_SetClipList(IDirectDrawClipper *iface, RGNDATA *region, DWORD flags)
Definition: clipper.c:235
static const struct IDirectDrawClipperVtbl ddraw_clipper_vtbl
Definition: clipper.c:308
static struct ddraw_clipper * impl_from_IDirectDrawClipper(IDirectDrawClipper *iface)
Definition: clipper.c:29
static HRESULT WINAPI ddraw_clipper_Initialize(IDirectDrawClipper *iface, IDirectDraw *ddraw, DWORD flags)
Definition: clipper.c:278
static HRESULT WINAPI ddraw_clipper_QueryInterface(IDirectDrawClipper *iface, REFIID iid, void **object)
Definition: clipper.c:34
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
#define assert(x)
Definition: debug.h:53
#define ERROR(name)
Definition: error_private.h:53
unsigned int BOOL
Definition: ntddk_ex.h:94
unsigned long DWORD
Definition: ntddk_ex.h:95
pKey DeleteObject()
GLbitfield flags
Definition: glext.h:7161
#define S_OK
Definition: intsafe.h:52
voidpf uLong int origin
Definition: ioapi.h:144
#define debugstr_guid
Definition: kernel32.h:35
static const WCHAR dc[]
static HDC
Definition: imagelist.c:92
static IHTMLWindow2 * window
Definition: events.c:77
#define IsEqualGUID(rguid1, rguid2)
Definition: guiddef.h:147
#define REFIID
Definition: guiddef.h:118
DWORD WINAPI GetVersion()
Definition: redirtest.c:5
#define DDERR_NOCLIPLIST
Definition: ddraw.h:87
#define DD_OK
Definition: ddraw.h:186
#define DDERR_INVALIDPARAMS
Definition: ddraw.h:79
#define DDERR_CLIPPERISUSINGHWND
Definition: ddraw.h:141
#define DDERR_ALREADYINITIALIZED
Definition: ddraw.h:67
#define TRACE(s)
Definition: solgame.cpp:4
& rect
Definition: startmenu.cpp:1413
IDirectDrawClipper IDirectDrawClipper_iface
#define CONTAINING_RECORD(address, type, field)
Definition: typedefs.h:260
uint32_t ULONG
Definition: typedefs.h:59
#define WINAPI
Definition: msvc.h:6
void WINAPI wined3d_mutex_unlock(void)
Definition: wined3d_main.c:373
void WINAPI wined3d_mutex_lock(void)
Definition: wined3d_main.c:368
#define E_NOINTERFACE
Definition: winerror.h:2364
HRGN WINAPI CreateRectRgn(_In_ int, _In_ int, _In_ int, _In_ int)
HRGN WINAPI ExtCreateRegion(_In_opt_ const XFORM *lpx, _In_ DWORD nCount, _In_reads_bytes_(nCount) const RGNDATA *lpData)
int WINAPI CombineRgn(_In_opt_ HRGN hrgnDest, _In_opt_ HRGN hrgnSrc1, _In_opt_ HRGN hrgnSrc2, _In_ int fnCombineMode)
#define RGN_AND
Definition: wingdi.h:356
int WINAPI OffsetRgn(_In_ HRGN, _In_ int, _In_ int)
int WINAPI GetRandomRgn(_In_ HDC, _In_ HRGN, _In_ INT)
DWORD WINAPI GetRegionData(_In_ HRGN hrgn, _In_ DWORD nCount, _Out_writes_bytes_to_opt_(nCount, return) LPRGNDATA lpRgnData)
HRGN WINAPI CreateRectRgnIndirect(_In_ LPCRECT)
BOOL WINAPI GetDCOrgEx(_In_ HDC, _Out_ LPPOINT)
Definition: coord.c:825
int WINAPI ReleaseDC(_In_opt_ HWND, _In_ HDC)
HDC WINAPI GetDC(_In_opt_ HWND)