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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 **object)
  32 {
  33     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
  34
  35     if (IsEqualGUID(riid, &IID_IWineD3DClipper)
  36             || IsEqualGUID(riid, &IID_IUnknown))
  37     {
  38         IUnknown_AddRef(iface);
  39         *object = iface;
  40         return S_OK;
  41     }
  42
  43     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
  44
  45     *object = NULL;
  46     return E_NOINTERFACE;
  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_SetHwnd(IWineD3DClipper *iface, DWORD Flags, HWND hWnd)
  75 {
  76     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  77
  78     TRACE("(%p)->(0x%08x,%p)\n", This, Flags, hWnd);
  79     if( Flags )
  80     {
  81         FIXME("Flags = 0x%08x, not supported.\n",Flags);
  82         return WINED3DERR_INVALIDCALL;
  83     }
  84
  85     This->hWnd = hWnd;
  86     return WINED3D_OK;
  87 }
  88
  89 static HRESULT WINAPI IWineD3DClipperImpl_GetClipList(IWineD3DClipper *iface, const RECT *Rect,
  90         RGNDATA *ClipList, DWORD *Size)
  91 {
  92     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  93     TRACE("(%p,%p,%p,%p)\n", This, Rect, ClipList, Size);
  94
  95     if (This->hWnd)
  96     {
  97         HDC hDC = GetDCEx(This->hWnd, NULL, DCX_WINDOW);
  98         if (hDC)
  99         {
 100             HRGN hRgn = CreateRectRgn(0,0,0,0);
 101             if (GetRandomRgn(hDC, hRgn, SYSRGN))
 102             {
 103                 if (GetVersion() & 0x80000000)
 104                 {
 105                     /* map region to screen coordinates */
 106                     POINT org;
 107                     GetDCOrgEx( hDC, &org );
 108                     OffsetRgn( hRgn, org.x, org.y );
 109                 }
 110                 if (Rect)
 111                 {
 112                     HRGN hRgnClip = CreateRectRgn(Rect->left, Rect->top,
 113                         Rect->right, Rect->bottom);
 114                     CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
 115                     DeleteObject(hRgnClip);
 116                 }
 117                 *Size = GetRegionData(hRgn, *Size, ClipList);
 118             }
 119             DeleteObject(hRgn);
 120             ReleaseDC(This->hWnd, hDC);
 121         }
 122         return WINED3D_OK;
 123     }
 124     else
 125     {
 126         static int warned = 0;
 127         if (warned++ < 10)
 128             FIXME("(%p,%p,%p,%p),stub!\n",This,Rect,ClipList,Size);
 129         if (Size) *Size=0;
 130         return WINEDDERR_NOCLIPLIST;
 131     }
 132 }
 133
 134 static HRESULT WINAPI IWineD3DClipperImpl_SetClipList(IWineD3DClipper *iface, const RGNDATA *rgn, DWORD Flags)
 135 {
 136     static int warned = 0;
 137
 138     if (warned++ < 10 || rgn == NULL)
 139         FIXME("iface %p, region %p, flags %#x stub!\n", iface, rgn, Flags);
 140
 141     return WINED3D_OK;
 142 }
 143
 144 static HRESULT WINAPI IWineD3DClipperImpl_GetHwnd(IWineD3DClipper *iface, HWND *hwnd)
 145 {
 146     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 147     TRACE("(%p)->(%p)\n", This, hwnd);
 148
 149     *hwnd = This->hWnd;
 150     return WINED3D_OK;
 151 }
 152
 153 static HRESULT WINAPI IWineD3DClipperImpl_IsClipListChanged(IWineD3DClipper *iface, BOOL *changed)
 154 {
 155     FIXME("iface %p, changed %p stub!\n", iface, changed);
 156
 157     /* XXX What is safest? */
 158     *changed = FALSE;
 159
 160     return WINED3D_OK;
 161 }
 162
 163 static const IWineD3DClipperVtbl IWineD3DClipper_Vtbl =
 164 {
 165     IWineD3DClipperImpl_QueryInterface,
 166     IWineD3DClipperImpl_AddRef,
 167     IWineD3DClipperImpl_Release,
 168     IWineD3DClipperImpl_GetClipList,
 169     IWineD3DClipperImpl_GetHwnd,
 170     IWineD3DClipperImpl_IsClipListChanged,
 171     IWineD3DClipperImpl_SetClipList,
 172     IWineD3DClipperImpl_SetHwnd
 173 };
 174
 175 IWineD3DClipper * WINAPI WineDirect3DCreateClipper(void)
 176 {
 177     IWineD3DClipperImpl *obj;
 178
 179     TRACE("\n");
 180
 181     obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*obj));
 182     if(!obj)
 183     {
 184         ERR("Out of memory when trying to allocate a WineD3D Clipper\n");
 185         return NULL;
 186     }
 187
 188     obj->lpVtbl = &IWineD3DClipper_Vtbl;
 189
 190     IWineD3DClipper_AddRef((IWineD3DClipper *)obj);
 191     return (IWineD3DClipper *) obj;
 192 }