git.oblomov.eu Git - wine/blob - dlls/d3d10core/view.c

   1 /*
   2  * Copyright 2009 Henri Verbeet for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  *
  18  */
  19
  20 #include "config.h"
  21 #include "wine/port.h"
  22
  23 #define NONAMELESSUNION
  24 #include "d3d10core_private.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(d3d10core);
  27
  28 static struct wined3d_resource *wined3d_resource_from_resource(ID3D10Resource *resource)
  29 {
  30     D3D10_RESOURCE_DIMENSION dimension;
  31
  32     ID3D10Resource_GetType(resource, &dimension);
  33
  34     switch(dimension)
  35     {
  36         case D3D10_RESOURCE_DIMENSION_BUFFER:
  37             return wined3d_buffer_get_resource(((struct d3d10_buffer *)resource)->wined3d_buffer);
  38
  39         case D3D10_RESOURCE_DIMENSION_TEXTURE2D:
  40             return IWineD3DSurface_GetResource(((struct d3d10_texture2d *)resource)->wined3d_surface);
  41
  42         default:
  43             FIXME("Unhandled resource dimension %#x.\n", dimension);
  44             return NULL;
  45     }
  46 }
  47
  48 static HRESULT set_rtdesc_from_resource(D3D10_RENDER_TARGET_VIEW_DESC *desc, ID3D10Resource *resource)
  49 {
  50     D3D10_RESOURCE_DIMENSION dimension;
  51     HRESULT hr;
  52
  53     ID3D10Resource_GetType(resource, &dimension);
  54
  55     switch(dimension)
  56     {
  57         case D3D10_RESOURCE_DIMENSION_TEXTURE1D:
  58         {
  59             ID3D10Texture1D *texture;
  60             D3D10_TEXTURE1D_DESC texture_desc;
  61
  62             hr = ID3D10Resource_QueryInterface(resource, &IID_ID3D10Texture1D, (void **)&texture);
  63             if (FAILED(hr))
  64             {
  65                 ERR("Resource of type TEXTURE1D doesn't implement ID3D10Texture1D?\n");
  66                 return E_INVALIDARG;
  67             }
  68
  69             ID3D10Texture1D_GetDesc(texture, &texture_desc);
  70             ID3D10Texture1D_Release(texture);
  71
  72             desc->Format = texture_desc.Format;
  73             if (texture_desc.ArraySize == 1)
  74             {
  75                 desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE1D;
  76                 desc->u.Texture1D.MipSlice = 0;
  77             }
  78             else
  79             {
  80                 desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE1DARRAY;
  81                 desc->u.Texture1DArray.MipSlice = 0;
  82                 desc->u.Texture1DArray.FirstArraySlice = 0;
  83                 desc->u.Texture1DArray.ArraySize = 1;
  84             }
  85
  86             return S_OK;
  87         }
  88
  89         case D3D10_RESOURCE_DIMENSION_TEXTURE2D:
  90         {
  91             ID3D10Texture2D *texture;
  92             D3D10_TEXTURE2D_DESC texture_desc;
  93
  94             hr = ID3D10Resource_QueryInterface(resource, &IID_ID3D10Texture2D, (void **)&texture);
  95             if (FAILED(hr))
  96             {
  97                 ERR("Resource of type TEXTURE2D doesn't implement ID3D10Texture2D?\n");
  98                 return E_INVALIDARG;
  99             }
 100
 101             ID3D10Texture2D_GetDesc(texture, &texture_desc);
 102             ID3D10Texture2D_Release(texture);
 103
 104             desc->Format = texture_desc.Format;
 105             if (texture_desc.ArraySize == 1)
 106             {
 107                 if (texture_desc.SampleDesc.Count == 1)
 108                 {
 109                     desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE2D;
 110                     desc->u.Texture2D.MipSlice = 0;
 111                 }
 112                 else
 113                 {
 114                     desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE2DMS;
 115                 }
 116             }
 117             else
 118             {
 119                 if (texture_desc.SampleDesc.Count == 1)
 120                 {
 121                     desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE2DARRAY;
 122                     desc->u.Texture2DArray.MipSlice = 0;
 123                     desc->u.Texture2DArray.FirstArraySlice = 0;
 124                     desc->u.Texture2DArray.ArraySize = 1;
 125                 }
 126                 else
 127                 {
 128                     desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE2DMSARRAY;
 129                     desc->u.Texture2DMSArray.FirstArraySlice = 0;
 130                     desc->u.Texture2DMSArray.ArraySize = 1;
 131                 }
 132             }
 133
 134             return S_OK;
 135         }
 136
 137         case D3D10_RESOURCE_DIMENSION_TEXTURE3D:
 138         {
 139             ID3D10Texture3D *texture;
 140             D3D10_TEXTURE3D_DESC texture_desc;
 141
 142             hr = ID3D10Resource_QueryInterface(resource, &IID_ID3D10Texture3D, (void **)&texture);
 143             if (FAILED(hr))
 144             {
 145                 ERR("Resource of type TEXTURE3D doesn't implement ID3D10Texture3D?\n");
 146                 return E_INVALIDARG;
 147             }
 148
 149             ID3D10Texture3D_GetDesc(texture, &texture_desc);
 150             ID3D10Texture3D_Release(texture);
 151
 152             desc->Format = texture_desc.Format;
 153             desc->ViewDimension = D3D10_RTV_DIMENSION_TEXTURE3D;
 154             desc->u.Texture3D.MipSlice = 0;
 155             desc->u.Texture3D.FirstWSlice = 0;
 156             desc->u.Texture3D.WSize = 1;
 157
 158             return S_OK;
 159         }
 160
 161         default:
 162             FIXME("Unhandled resource dimension %#x.\n", dimension);
 163             return E_INVALIDARG;
 164     }
 165 }
 166
 167 /* IUnknown methods */
 168
 169 static HRESULT STDMETHODCALLTYPE d3d10_depthstencil_view_QueryInterface(ID3D10DepthStencilView *iface,
 170         REFIID riid, void **object)
 171 {
 172     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 173
 174     if (IsEqualGUID(riid, &IID_ID3D10DepthStencilView)
 175             || IsEqualGUID(riid, &IID_ID3D10View)
 176             || IsEqualGUID(riid, &IID_ID3D10DeviceChild)
 177             || IsEqualGUID(riid, &IID_IUnknown))
 178     {
 179         IUnknown_AddRef(iface);
 180         *object = iface;
 181         return S_OK;
 182     }
 183
 184     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
 185
 186     *object = NULL;
 187     return E_NOINTERFACE;
 188 }
 189
 190 static ULONG STDMETHODCALLTYPE d3d10_depthstencil_view_AddRef(ID3D10DepthStencilView *iface)
 191 {
 192     struct d3d10_depthstencil_view *This = (struct d3d10_depthstencil_view *)iface;
 193     ULONG refcount = InterlockedIncrement(&This->refcount);
 194
 195     TRACE("%p increasing refcount to %u.\n", This, refcount);
 196
 197     return refcount;
 198 }
 199
 200 static ULONG STDMETHODCALLTYPE d3d10_depthstencil_view_Release(ID3D10DepthStencilView *iface)
 201 {
 202     struct d3d10_depthstencil_view *This = (struct d3d10_depthstencil_view *)iface;
 203     ULONG refcount = InterlockedDecrement(&This->refcount);
 204
 205     TRACE("%p decreasing refcount to %u.\n", This, refcount);
 206
 207     if (!refcount)
 208     {
 209         HeapFree(GetProcessHeap(), 0, This);
 210     }
 211
 212     return refcount;
 213 }
 214
 215 /* ID3D10DeviceChild methods */
 216
 217 static void STDMETHODCALLTYPE d3d10_depthstencil_view_GetDevice(ID3D10DepthStencilView *iface, ID3D10Device **device)
 218 {
 219     FIXME("iface %p, device %p stub!\n", iface, device);
 220 }
 221
 222 static HRESULT STDMETHODCALLTYPE d3d10_depthstencil_view_GetPrivateData(ID3D10DepthStencilView *iface,
 223         REFGUID guid, UINT *data_size, void *data)
 224 {
 225     FIXME("iface %p, guid %s, data_size %p, data %p stub!\n",
 226             iface, debugstr_guid(guid), data_size, data);
 227
 228     return E_NOTIMPL;
 229 }
 230
 231 static HRESULT STDMETHODCALLTYPE d3d10_depthstencil_view_SetPrivateData(ID3D10DepthStencilView *iface,
 232         REFGUID guid, UINT data_size, const void *data)
 233 {
 234     FIXME("iface %p, guid %s, data_size %u, data %p stub!\n",
 235             iface, debugstr_guid(guid), data_size, data);
 236
 237     return E_NOTIMPL;
 238 }
 239
 240 static HRESULT STDMETHODCALLTYPE d3d10_depthstencil_view_SetPrivateDataInterface(ID3D10DepthStencilView *iface,
 241         REFGUID guid, const IUnknown *data)
 242 {
 243     FIXME("iface %p, guid %s, data %p stub!\n", iface, debugstr_guid(guid), data);
 244
 245     return E_NOTIMPL;
 246 }
 247
 248 /* ID3D10View methods */
 249
 250 static void STDMETHODCALLTYPE d3d10_depthstencil_view_GetResource(ID3D10DepthStencilView *iface,
 251         ID3D10Resource **resource)
 252 {
 253     FIXME("iface %p, resource %p stub!\n", iface, resource);
 254 }
 255
 256 /* ID3D10DepthStencilView methods */
 257
 258 static void STDMETHODCALLTYPE d3d10_depthstencil_view_GetDesc(ID3D10DepthStencilView *iface,
 259         D3D10_DEPTH_STENCIL_VIEW_DESC *desc)
 260 {
 261     FIXME("iface %p, desc %p stub!\n", iface, desc);
 262 }
 263
 264 static const struct ID3D10DepthStencilViewVtbl d3d10_depthstencil_view_vtbl =
 265 {
 266     /* IUnknown methods */
 267     d3d10_depthstencil_view_QueryInterface,
 268     d3d10_depthstencil_view_AddRef,
 269     d3d10_depthstencil_view_Release,
 270     /* ID3D10DeviceChild methods */
 271     d3d10_depthstencil_view_GetDevice,
 272     d3d10_depthstencil_view_GetPrivateData,
 273     d3d10_depthstencil_view_SetPrivateData,
 274     d3d10_depthstencil_view_SetPrivateDataInterface,
 275     /* ID3D10View methods */
 276     d3d10_depthstencil_view_GetResource,
 277     /* ID3D10DepthStencilView methods */
 278     d3d10_depthstencil_view_GetDesc,
 279 };
 280
 281 HRESULT d3d10_depthstencil_view_init(struct d3d10_depthstencil_view *view)
 282 {
 283     view->vtbl = &d3d10_depthstencil_view_vtbl;
 284     view->refcount = 1;
 285
 286     return S_OK;
 287 }
 288
 289 /* IUnknown methods */
 290
 291 static HRESULT STDMETHODCALLTYPE d3d10_rendertarget_view_QueryInterface(ID3D10RenderTargetView *iface,
 292         REFIID riid, void **object)
 293 {
 294     TRACE("iface %p, riid %s, object %p\n", iface, debugstr_guid(riid), object);
 295
 296     if (IsEqualGUID(riid, &IID_ID3D10RenderTargetView)
 297             || IsEqualGUID(riid, &IID_ID3D10View)
 298             || IsEqualGUID(riid, &IID_ID3D10DeviceChild)
 299             || IsEqualGUID(riid, &IID_IUnknown))
 300     {
 301         IUnknown_AddRef(iface);
 302         *object = iface;
 303         return S_OK;
 304     }
 305
 306     WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));
 307
 308     *object = NULL;
 309     return E_NOINTERFACE;
 310 }
 311
 312 static ULONG STDMETHODCALLTYPE d3d10_rendertarget_view_AddRef(ID3D10RenderTargetView *iface)
 313 {
 314     struct d3d10_rendertarget_view *This = (struct d3d10_rendertarget_view *)iface;
 315     ULONG refcount = InterlockedIncrement(&This->refcount);
 316
 317     TRACE("%p increasing refcount to %u\n", This, refcount);
 318
 319     return refcount;
 320 }
 321
 322 static ULONG STDMETHODCALLTYPE d3d10_rendertarget_view_Release(ID3D10RenderTargetView *iface)
 323 {
 324     struct d3d10_rendertarget_view *This = (struct d3d10_rendertarget_view *)iface;
 325     ULONG refcount = InterlockedDecrement(&This->refcount);
 326
 327     TRACE("%p decreasing refcount to %u\n", This, refcount);
 328
 329     if (!refcount)
 330     {
 331         IWineD3DRendertargetView_Release(This->wined3d_view);
 332         HeapFree(GetProcessHeap(), 0, This);
 333     }
 334
 335     return refcount;
 336 }
 337
 338 /* ID3D10DeviceChild methods */
 339
 340 static void STDMETHODCALLTYPE d3d10_rendertarget_view_GetDevice(ID3D10RenderTargetView *iface, ID3D10Device **device)
 341 {
 342     FIXME("iface %p, device %p stub!\n", iface, device);
 343 }
 344
 345 static HRESULT STDMETHODCALLTYPE d3d10_rendertarget_view_GetPrivateData(ID3D10RenderTargetView *iface,
 346         REFGUID guid, UINT *data_size, void *data)
 347 {
 348     FIXME("iface %p, guid %s, data_size %p, data %p stub!\n",
 349             iface, debugstr_guid(guid), data_size, data);
 350
 351     return E_NOTIMPL;
 352 }
 353
 354 static HRESULT STDMETHODCALLTYPE d3d10_rendertarget_view_SetPrivateData(ID3D10RenderTargetView *iface,
 355         REFGUID guid, UINT data_size, const void *data)
 356 {
 357     FIXME("iface %p, guid %s, data_size %u, data %p stub!\n",
 358             iface, debugstr_guid(guid), data_size, data);
 359
 360     return E_NOTIMPL;
 361 }
 362
 363 static HRESULT STDMETHODCALLTYPE d3d10_rendertarget_view_SetPrivateDataInterface(ID3D10RenderTargetView *iface,
 364         REFGUID guid, const IUnknown *data)
 365 {
 366     FIXME("iface %p, guid %s, data %p stub!\n", iface, debugstr_guid(guid), data);
 367
 368     return E_NOTIMPL;
 369 }
 370
 371 /* ID3D10View methods */
 372
 373 static void STDMETHODCALLTYPE d3d10_rendertarget_view_GetResource(ID3D10RenderTargetView *iface,
 374         ID3D10Resource **resource)
 375 {
 376     struct d3d10_rendertarget_view *This = (struct d3d10_rendertarget_view *)iface;
 377     struct wined3d_resource *wined3d_resource;
 378     IUnknown *parent;
 379     HRESULT hr;
 380
 381     TRACE("iface %p, resource %p\n", iface, resource);
 382
 383     hr = IWineD3DRendertargetView_GetResource(This->wined3d_view, &wined3d_resource);
 384     if (FAILED(hr))
 385     {
 386         ERR("Failed to get wined3d resource, hr %#x\n", hr);
 387         *resource = NULL;
 388         return;
 389     }
 390
 391     parent = wined3d_resource_get_parent(wined3d_resource);
 392     hr = IUnknown_QueryInterface(parent, &IID_ID3D10Resource, (void **)&resource);
 393     if (FAILED(hr))
 394     {
 395         ERR("Resource parent isn't a d3d10 resource, hr %#x\n", hr);
 396         *resource = NULL;
 397         return;
 398     }
 399 }
 400
 401 /* ID3D10RenderTargetView methods */
 402
 403 static void STDMETHODCALLTYPE d3d10_rendertarget_view_GetDesc(ID3D10RenderTargetView *iface,
 404         D3D10_RENDER_TARGET_VIEW_DESC *desc)
 405 {
 406     struct d3d10_rendertarget_view *This = (struct d3d10_rendertarget_view *)iface;
 407
 408     TRACE("iface %p, desc %p\n", iface, desc);
 409
 410     *desc = This->desc;
 411 }
 412
 413 static const struct ID3D10RenderTargetViewVtbl d3d10_rendertarget_view_vtbl =
 414 {
 415     /* IUnknown methods */
 416     d3d10_rendertarget_view_QueryInterface,
 417     d3d10_rendertarget_view_AddRef,
 418     d3d10_rendertarget_view_Release,
 419     /* ID3D10DeviceChild methods */
 420     d3d10_rendertarget_view_GetDevice,
 421     d3d10_rendertarget_view_GetPrivateData,
 422     d3d10_rendertarget_view_SetPrivateData,
 423     d3d10_rendertarget_view_SetPrivateDataInterface,
 424     /* ID3D10View methods */
 425     d3d10_rendertarget_view_GetResource,
 426     /* ID3D10RenderTargetView methods */
 427     d3d10_rendertarget_view_GetDesc,
 428 };
 429
 430 HRESULT d3d10_rendertarget_view_init(struct d3d10_rendertarget_view *view, struct d3d10_device *device,
 431         ID3D10Resource *resource, const D3D10_RENDER_TARGET_VIEW_DESC *desc)
 432 {
 433     struct wined3d_resource *wined3d_resource;
 434     HRESULT hr;
 435
 436     view->vtbl = &d3d10_rendertarget_view_vtbl;
 437     view->refcount = 1;
 438
 439     if (!desc)
 440     {
 441         HRESULT hr = set_rtdesc_from_resource(&view->desc, resource);
 442         if (FAILED(hr)) return hr;
 443     }
 444     else
 445     {
 446         view->desc = *desc;
 447     }
 448
 449     wined3d_resource = wined3d_resource_from_resource(resource);
 450     if (!wined3d_resource)
 451     {
 452         ERR("Failed to get wined3d resource for d3d10 resource %p.\n", resource);
 453         return E_FAIL;
 454     }
 455
 456     hr = IWineD3DDevice_CreateRendertargetView(device->wined3d_device,
 457             wined3d_resource, (IUnknown *)view, &view->wined3d_view);
 458     if (FAILED(hr))
 459     {
 460         WARN("Failed to create a wined3d rendertarget view, hr %#x.\n", hr);
 461         return hr;
 462     }
 463
 464     return S_OK;
 465 }
 466
 467 /* IUnknown methods */
 468
 469 static HRESULT STDMETHODCALLTYPE d3d10_shader_resource_view_QueryInterface(ID3D10ShaderResourceView *iface,
 470         REFIID riid, void **object)
 471 {
 472     TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(riid), object);
 473
 474     if (IsEqualGUID(riid, &IID_ID3D10ShaderResourceView)
 475             || IsEqualGUID(riid, &IID_ID3D10View)
 476             || IsEqualGUID(riid, &IID_ID3D10DeviceChild)
 477             || IsEqualGUID(riid, &IID_IUnknown))
 478     {
 479         IUnknown_AddRef(iface);
 480         *object = iface;
 481         return S_OK;
 482     }
 483
 484     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(riid));
 485
 486     *object = NULL;
 487     return E_NOINTERFACE;
 488 }
 489
 490 static ULONG STDMETHODCALLTYPE d3d10_shader_resource_view_AddRef(ID3D10ShaderResourceView *iface)
 491 {
 492     struct d3d10_shader_resource_view *This = (struct d3d10_shader_resource_view *)iface;
 493     ULONG refcount = InterlockedIncrement(&This->refcount);
 494
 495     TRACE("%p increasing refcount to %u.\n", This, refcount);
 496
 497     return refcount;
 498 }
 499
 500 static ULONG STDMETHODCALLTYPE d3d10_shader_resource_view_Release(ID3D10ShaderResourceView *iface)
 501 {
 502     struct d3d10_shader_resource_view *This = (struct d3d10_shader_resource_view *)iface;
 503     ULONG refcount = InterlockedDecrement(&This->refcount);
 504
 505     TRACE("%p decreasing refcount to %u.\n", This, refcount);
 506
 507     if (!refcount)
 508     {
 509         HeapFree(GetProcessHeap(), 0, This);
 510     }
 511
 512     return refcount;
 513 }
 514
 515 /* ID3D10DeviceChild methods */
 516
 517 static void STDMETHODCALLTYPE d3d10_shader_resource_view_GetDevice(ID3D10ShaderResourceView *iface,
 518         ID3D10Device **device)
 519 {
 520     FIXME("iface %p, device %p stub!\n", iface, device);
 521 }
 522
 523 static HRESULT STDMETHODCALLTYPE d3d10_shader_resource_view_GetPrivateData(ID3D10ShaderResourceView *iface,
 524         REFGUID guid, UINT *data_size, void *data)
 525 {
 526     FIXME("iface %p, guid %s, data_size %p, data %p stub!\n",
 527             iface, debugstr_guid(guid), data_size, data);
 528
 529     return E_NOTIMPL;
 530 }
 531
 532 static HRESULT STDMETHODCALLTYPE d3d10_shader_resource_view_SetPrivateData(ID3D10ShaderResourceView *iface,
 533         REFGUID guid, UINT data_size, const void *data)
 534 {
 535     FIXME("iface %p, guid %s, data_size %u, data %p stub!\n",
 536             iface, debugstr_guid(guid), data_size, data);
 537
 538     return E_NOTIMPL;
 539 }
 540
 541 static HRESULT STDMETHODCALLTYPE d3d10_shader_resource_view_SetPrivateDataInterface(ID3D10ShaderResourceView *iface,
 542         REFGUID guid, const IUnknown *data)
 543 {
 544     FIXME("iface %p, guid %s, data %p stub!\n", iface, debugstr_guid(guid), data);
 545
 546     return E_NOTIMPL;
 547 }
 548
 549 /* ID3D10View methods */
 550
 551 static void STDMETHODCALLTYPE d3d10_shader_resource_view_GetResource(ID3D10ShaderResourceView *iface,
 552         ID3D10Resource **resource)
 553 {
 554     FIXME("iface %p, resource %p stub!\n", iface, resource);
 555 }
 556
 557 /* ID3D10ShaderResourceView methods */
 558
 559 static void STDMETHODCALLTYPE d3d10_shader_resource_view_GetDesc(ID3D10ShaderResourceView *iface,
 560         D3D10_SHADER_RESOURCE_VIEW_DESC *desc)
 561 {
 562     FIXME("iface %p, desc %p stub!\n", iface, desc);
 563 }
 564
 565 static const struct ID3D10ShaderResourceViewVtbl d3d10_shader_resource_view_vtbl =
 566 {
 567     /* IUnknown methods */
 568     d3d10_shader_resource_view_QueryInterface,
 569     d3d10_shader_resource_view_AddRef,
 570     d3d10_shader_resource_view_Release,
 571     /* ID3D10DeviceChild methods */
 572     d3d10_shader_resource_view_GetDevice,
 573     d3d10_shader_resource_view_GetPrivateData,
 574     d3d10_shader_resource_view_SetPrivateData,
 575     d3d10_shader_resource_view_SetPrivateDataInterface,
 576     /* ID3D10View methods */
 577     d3d10_shader_resource_view_GetResource,
 578     /* ID3D10ShaderResourceView methods */
 579     d3d10_shader_resource_view_GetDesc,
 580 };
 581
 582 HRESULT d3d10_shader_resource_view_init(struct d3d10_shader_resource_view *view)
 583 {
 584     view->vtbl = &d3d10_shader_resource_view_vtbl;
 585     view->refcount = 1;
 586
 587     return S_OK;
 588 }