dlls/wined3d/clipper.c

   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_IWineD3DBase)
  37             || IsEqualGUID(riid, &IID_IUnknown))
  38     {
  39         IUnknown_AddRef(iface);
  40         *object = iface;
  41         return S_OK;
  42     }
  43
  44     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
  45
  46     *object = NULL;
  47     return E_NOINTERFACE;
  48 }
  49
  50 static ULONG WINAPI IWineD3DClipperImpl_AddRef(IWineD3DClipper *iface )
  51 {
  52     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  53     ULONG ref = InterlockedIncrement(&This->ref);
  54
  55     TRACE("(%p)->() incrementing from %u.\n", This, ref - 1);
  56
  57     return ref;
  58 }
  59
  60 static ULONG WINAPI IWineD3DClipperImpl_Release(IWineD3DClipper *iface)
  61 {
  62     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  63     ULONG ref = InterlockedDecrement(&This->ref);
  64
  65     TRACE("(%p)->() decrementing from %u.\n", This, ref + 1);
  66
  67     if (ref == 0)
  68     {
  69         HeapFree(GetProcessHeap(), 0, This);
  70         return 0;
  71     }
  72     else return ref;
  73 }
  74
  75 static HRESULT WINAPI IWineD3DClipperImpl_GetParent(IWineD3DClipper *iface, IUnknown **Parent)
  76 {
  77     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  78     TRACE("(%p)->(%p)\n", This, Parent);
  79
  80     *Parent = This->Parent;
  81     IUnknown_AddRef(*Parent);
  82     return WINED3D_OK;
  83 }
  84
  85 static HRESULT WINAPI IWineD3DClipperImpl_SetHwnd(IWineD3DClipper *iface, DWORD Flags, HWND hWnd)
  86 {
  87     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  88
  89     TRACE("(%p)->(0x%08x,%p)\n", This, Flags, hWnd);
  90     if( Flags )
  91     {
  92         FIXME("Flags = 0x%08x, not supported.\n",Flags);
  93         return WINED3DERR_INVALIDCALL;
  94     }
  95
  96     This->hWnd = hWnd;
  97     return WINED3D_OK;
  98 }
  99
 100 static HRESULT WINAPI IWineD3DClipperImpl_GetClipList(IWineD3DClipper *iface, const RECT *Rect,
 101         RGNDATA *ClipList, DWORD *Size)
 102 {
 103     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 104     TRACE("(%p,%p,%p,%p)\n", This, Rect, ClipList, Size);
 105
 106     if (This->hWnd)
 107     {
 108         HDC hDC = GetDCEx(This->hWnd, NULL, DCX_WINDOW);
 109         if (hDC)
 110         {
 111             HRGN hRgn = CreateRectRgn(0,0,0,0);
 112             if (GetRandomRgn(hDC, hRgn, SYSRGN))
 113             {
 114                 if (GetVersion() & 0x80000000)
 115                 {
 116                     /* map region to screen coordinates */
 117                     POINT org;
 118                     GetDCOrgEx( hDC, &org );
 119                     OffsetRgn( hRgn, org.x, org.y );
 120                 }
 121                 if (Rect)
 122                 {
 123                     HRGN hRgnClip = CreateRectRgn(Rect->left, Rect->top,
 124                         Rect->right, Rect->bottom);
 125                     CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
 126                     DeleteObject(hRgnClip);
 127                 }
 128                 *Size = GetRegionData(hRgn, *Size, ClipList);
 129             }
 130             DeleteObject(hRgn);
 131             ReleaseDC(This->hWnd, hDC);
 132         }
 133         return WINED3D_OK;
 134     }
 135     else
 136     {
 137         static int warned = 0;
 138         if (warned++ < 10)
 139             FIXME("(%p,%p,%p,%p),stub!\n",This,Rect,ClipList,Size);
 140         if (Size) *Size=0;
 141         return WINEDDERR_NOCLIPLIST;
 142     }
 143 }
 144
 145 static HRESULT WINAPI IWineD3DClipperImpl_SetClipList(IWineD3DClipper *iface, const RGNDATA *rgn, DWORD Flags)
 146 {
 147     static int warned = 0;
 148
 149     if (warned++ < 10 || rgn == NULL)
 150         FIXME("iface %p, region %p, flags %#x stub!\n", iface, rgn, Flags);
 151
 152     return WINED3D_OK;
 153 }
 154
 155 static HRESULT WINAPI IWineD3DClipperImpl_GetHwnd(IWineD3DClipper *iface, HWND *hwnd)
 156 {
 157     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 158     TRACE("(%p)->(%p)\n", This, hwnd);
 159
 160     *hwnd = This->hWnd;
 161     return WINED3D_OK;
 162 }
 163
 164 static HRESULT WINAPI IWineD3DClipperImpl_IsClipListChanged(IWineD3DClipper *iface, BOOL *changed)
 165 {
 166     FIXME("iface %p, changed %p stub!\n", iface, 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 }