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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) HeapFree(GetProcessHeap(), 0, This);
  67
  68     return ref;
  69 }
  70
  71 static HRESULT WINAPI IWineD3DClipperImpl_SetHwnd(IWineD3DClipper *iface, DWORD flags, HWND hWnd)
  72 {
  73     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  74
  75     TRACE("iface %p, flags %#x, window %p.\n", iface, flags, hWnd);
  76     if (flags)
  77     {
  78         FIXME("flags %#x, not supported.\n", flags);
  79         return WINED3DERR_INVALIDCALL;
  80     }
  81
  82     This->hWnd = hWnd;
  83     return WINED3D_OK;
  84 }
  85
  86 static HRESULT WINAPI IWineD3DClipperImpl_GetClipList(IWineD3DClipper *iface, const RECT *Rect,
  87         RGNDATA *ClipList, DWORD *Size)
  88 {
  89     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
  90     TRACE("(%p,%p,%p,%p)\n", This, Rect, ClipList, Size);
  91
  92     if (This->hWnd)
  93     {
  94         HDC hDC = GetDCEx(This->hWnd, NULL, DCX_WINDOW);
  95         if (hDC)
  96         {
  97             HRGN hRgn = CreateRectRgn(0,0,0,0);
  98             if (GetRandomRgn(hDC, hRgn, SYSRGN))
  99             {
 100                 if (GetVersion() & 0x80000000)
 101                 {
 102                     /* map region to screen coordinates */
 103                     POINT org;
 104                     GetDCOrgEx( hDC, &org );
 105                     OffsetRgn( hRgn, org.x, org.y );
 106                 }
 107                 if (Rect)
 108                 {
 109                     HRGN hRgnClip = CreateRectRgn(Rect->left, Rect->top,
 110                         Rect->right, Rect->bottom);
 111                     CombineRgn(hRgn, hRgn, hRgnClip, RGN_AND);
 112                     DeleteObject(hRgnClip);
 113                 }
 114                 *Size = GetRegionData(hRgn, *Size, ClipList);
 115             }
 116             DeleteObject(hRgn);
 117             ReleaseDC(This->hWnd, hDC);
 118         }
 119         return WINED3D_OK;
 120     }
 121     else
 122     {
 123         static int warned = 0;
 124         if (warned++ < 10)
 125             FIXME("(%p,%p,%p,%p),stub!\n",This,Rect,ClipList,Size);
 126         if (Size) *Size=0;
 127         return WINEDDERR_NOCLIPLIST;
 128     }
 129 }
 130
 131 static HRESULT WINAPI IWineD3DClipperImpl_SetClipList(IWineD3DClipper *iface, const RGNDATA *rgn, DWORD flags)
 132 {
 133     static int warned = 0;
 134
 135     if (warned++ < 10 || !rgn)
 136         FIXME("iface %p, region %p, flags %#x stub!\n", iface, rgn, flags);
 137
 138     return WINED3D_OK;
 139 }
 140
 141 static HRESULT WINAPI IWineD3DClipperImpl_GetHwnd(IWineD3DClipper *iface, HWND *hwnd)
 142 {
 143     IWineD3DClipperImpl *This = (IWineD3DClipperImpl *)iface;
 144     TRACE("(%p)->(%p)\n", This, hwnd);
 145
 146     *hwnd = This->hWnd;
 147     return WINED3D_OK;
 148 }
 149
 150 static HRESULT WINAPI IWineD3DClipperImpl_IsClipListChanged(IWineD3DClipper *iface, BOOL *changed)
 151 {
 152     FIXME("iface %p, changed %p stub!\n", iface, changed);
 153
 154     /* XXX What is safest? */
 155     *changed = FALSE;
 156
 157     return WINED3D_OK;
 158 }
 159
 160 static const IWineD3DClipperVtbl IWineD3DClipper_Vtbl =
 161 {
 162     IWineD3DClipperImpl_QueryInterface,
 163     IWineD3DClipperImpl_AddRef,
 164     IWineD3DClipperImpl_Release,
 165     IWineD3DClipperImpl_GetClipList,
 166     IWineD3DClipperImpl_GetHwnd,
 167     IWineD3DClipperImpl_IsClipListChanged,
 168     IWineD3DClipperImpl_SetClipList,
 169     IWineD3DClipperImpl_SetHwnd
 170 };
 171
 172 IWineD3DClipper * WINAPI WineDirect3DCreateClipper(void)
 173 {
 174     IWineD3DClipperImpl *obj;
 175
 176     TRACE("\n");
 177
 178     obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*obj));
 179     if(!obj)
 180     {
 181         ERR("Out of memory when trying to allocate a WineD3D Clipper\n");
 182         return NULL;
 183     }
 184
 185     obj->lpVtbl = &IWineD3DClipper_Vtbl;
 186
 187     IWineD3DClipper_AddRef((IWineD3DClipper *)obj);
 188     return (IWineD3DClipper *) obj;
 189 }