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   1 /* IWineD3DClipper 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 <stdio.h>
  24 #ifdef HAVE_FLOAT_H
  25 # include <float.h>
  26 #endif
  27 #include "wined3d_private.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  30
  31 static HRESULT WINAPI IWineD3DClipperImpl_QueryInterface(IWineD3DClipper *iface, REFIID riid, void **Obj)
  32 {
  33     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  34
  35     TRACE("(%p)->(%p,%p)\n", This, riid, Obj);
  36     if (IsEqualGUID(&IID_IUnknown, riid)
  37         || IsEqualGUID(&IID_IWineD3DClipper, riid))
  38     {
  39         *Obj = iface;
  40         IWineD3DClipper_AddRef(iface);
  41         return S_OK;
  42     }
  43     else
  44     {
  45         return E_NOINTERFACE;
  46     }
  47 }
  48
  49 static ULONG WINAPI IWineD3DClipperImpl_AddRef(IWineD3DClipper *iface )
  50 {
  51     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  52     ULONG ref = InterlockedIncrement(&This->ref);
  53
  54     TRACE("(%p)->() incrementing from %u.\n", This, ref - 1);
  55
  56     return ref;
  57 }
  58
  59 static ULONG WINAPI IWineD3DClipperImpl_Release(IWineD3DClipper *iface)
  60 {
  61     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  62     ULONG ref = InterlockedDecrement(&This->ref);
  63
  64     TRACE("(%p)->() decrementing from %u.\n", This, ref + 1);
  65
  66     if (ref == 0)
  67     {
  68         HeapFree(GetProcessHeap(), 0, This);
  69         return 0;
  70     }
  71     else return ref;
  72 }
  73
  74 static HRESULT WINAPI IWineD3DClipperImpl_GetParent(IWineD3DClipper *iface, IUnknown **Parent)
  75 {
  76     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  77     TRACE("(%p)->(%p)\n", This, Parent);
  78
  79     *Parent = This->Parent;
  80     IUnknown_AddRef(*Parent);
  81     return WINED3D_OK;
  82 }
  83
  84 static HRESULT WINAPI IWineD3DClipperImpl_SetHwnd(IWineD3DClipper *iface, DWORD Flags, HWND hWnd)
  85 {
  86     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  87
  88     TRACE("(%p)->(0x%08x,%p)\n", This, Flags, hWnd);
  89     if( Flags )
  90     {
  91         FIXME("Flags = 0x%08x, not supported.\n",Flags);
  92         return WINED3DERR_INVALIDCALL;
  93     }
  94
  95     This->hWnd = hWnd;
  96     return WINED3D_OK;
  97 }
  98
  99 static HRESULT WINAPI IWineD3DClipperImpl_GetClipList(IWineD3DClipper *iface, const RECT *Rect,
 100         RGNDATA *ClipList, DWORD *Size)
 101 {
 102     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 103     TRACE("(%p,%p,%p,%p)\n", This, Rect, ClipList, Size);
 104
 105     if (This->hWnd)
 106     {
 107         HDC hDC = GetDCEx(This->hWnd, NULL, DCX_WINDOW);
 108         if (hDC)
 109         {
 110             HRGN hRgn = CreateRectRgn(0,0,0,0);
 111             if (GetRandomRgn(hDC, hRgn, SYSRGN))
 112             {
 113                 if (GetVersion() & 0x80000000)
 114                 {
 115                     /* map region to screen coordinates */
 116                     POINT org;
 117                     GetDCOrgEx( hDC, &org );
 118                     OffsetRgn( hRgn, org.x, org.y );
 119                 }
 120                 if (Rect)
 121                 {
 122                     HRGN hRgnClip = CreateRectRgn(Rect->left, Rect->top,
 123                         Rect->right, Rect->bottom);
 124                     CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
 125                     DeleteObject(hRgnClip);
 126                 }
 127                 *Size = GetRegionData(hRgn, *Size, ClipList);
 128             }
 129             DeleteObject(hRgn);
 130             ReleaseDC(This->hWnd, hDC);
 131         }
 132         return WINED3D_OK;
 133     }
 134     else
 135     {
 136         static int warned = 0;
 137         if (warned++ < 10)
 138             FIXME("(%p,%p,%p,%p),stub!\n",This,Rect,ClipList,Size);
 139         if (Size) *Size=0;
 140         return WINEDDERR_NOCLIPLIST;
 141     }
 142 }
 143
 144 static HRESULT WINAPI IWineD3DClipperImpl_SetClipList(IWineD3DClipper *iface, const RGNDATA *rgn, DWORD Flags)
 145 {
 146     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 147     static int warned = 0;
 148
 149     if (warned++ < 10 || rgn == NULL)
 150         FIXME("(%p,%p,%d),stub!\n",This,rgn,Flags);
 151     return WINED3D_OK;
 152 }
 153
 154 static HRESULT WINAPI IWineD3DClipperImpl_GetHwnd(IWineD3DClipper *iface, HWND *hwnd)
 155 {
 156     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 157     TRACE("(%p)->(%p)\n", This, hwnd);
 158
 159     *hwnd = This->hWnd;
 160     return WINED3D_OK;
 161 }
 162
 163 static HRESULT WINAPI IWineD3DClipperImpl_IsClipListChanged(IWineD3DClipper *iface, BOOL *changed)
 164 {
 165     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 166     FIXME("(%p)->(%p),stub!\n",This,changed);
 167
 168     /* XXX What is safest? */
 169     *changed = FALSE;
 170
 171     return WINED3D_OK;
 172 }
 173
 174 static const IWineD3DClipperVtbl IWineD3DClipper_Vtbl =
 175 {
 176     IWineD3DClipperImpl_QueryInterface,
 177     IWineD3DClipperImpl_AddRef,
 178     IWineD3DClipperImpl_Release,
 179     IWineD3DClipperImpl_GetParent,
 180     IWineD3DClipperImpl_GetClipList,
 181     IWineD3DClipperImpl_GetHwnd,
 182     IWineD3DClipperImpl_IsClipListChanged,
 183     IWineD3DClipperImpl_SetClipList,
 184     IWineD3DClipperImpl_SetHwnd
 185 };
 186
 187 IWineD3DClipper* WINAPI WineDirect3DCreateClipper(IUnknown *Parent)
 188 {
 189     IWineD3DClipperImpl *obj;
 190
 191     TRACE("Creating clipper, parent %p\n", Parent);
 192     obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*obj));
 193     if(!obj)
 194     {
 195         ERR("Out of memory when trying to allocate a WineD3D Clipper\n");
 196         return NULL;
 197     }
 198
 199     obj->lpVtbl = &IWineD3DClipper_Vtbl;
 200     obj->Parent = Parent;
 201
 202     IWineD3DClipper_AddRef((IWineD3DClipper *)obj);
 203     return (IWineD3DClipper *) obj;
 204 }