git.oblomov.eu Git - wine/blob - dlls/d3d9/vertexdeclaration.c

   1 /*
   2  * IDirect3DVertexDeclaration9 implementation
   3  *
   4  * Copyright 2002-2003 Raphael Junqueira
   5  *                     Jason Edmeades
   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 "d3d9_private.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(d3d9);
  26
  27 typedef struct _D3DDECLTYPE_INFO {
  28     D3DDECLTYPE d3dType;
  29     WINED3DFORMAT format;
  30     int         size;
  31     int         typesize;
  32 } D3DDECLTYPE_INFO;
  33
  34 static D3DDECLTYPE_INFO const d3d_dtype_lookup[D3DDECLTYPE_UNUSED] = {
  35    {D3DDECLTYPE_FLOAT1,    WINED3DFMT_R32_FLOAT,          1, sizeof(float)},
  36    {D3DDECLTYPE_FLOAT2,    WINED3DFMT_R32G32_FLOAT,       2, sizeof(float)},
  37    {D3DDECLTYPE_FLOAT3,    WINED3DFMT_R32G32B32_FLOAT,    3, sizeof(float)},
  38    {D3DDECLTYPE_FLOAT4,    WINED3DFMT_R32G32B32A32_FLOAT, 4, sizeof(float)},
  39    {D3DDECLTYPE_D3DCOLOR,  WINED3DFMT_A8R8G8B8,           4, sizeof(BYTE)},
  40    {D3DDECLTYPE_UBYTE4,    WINED3DFMT_R8G8B8A8_UINT,      4, sizeof(BYTE)},
  41    {D3DDECLTYPE_SHORT2,    WINED3DFMT_R16G16_SINT,        2, sizeof(short int)},
  42    {D3DDECLTYPE_SHORT4,    WINED3DFMT_R16G16B16A16_SINT,  4, sizeof(short int)},
  43    {D3DDECLTYPE_UBYTE4N,   WINED3DFMT_R8G8B8A8_UNORM,     4, sizeof(BYTE)},
  44    {D3DDECLTYPE_SHORT2N,   WINED3DFMT_R16G16_SNORM,       2, sizeof(short int)},
  45    {D3DDECLTYPE_SHORT4N,   WINED3DFMT_R16G16B16A16_SNORM, 4, sizeof(short int)},
  46    {D3DDECLTYPE_USHORT2N,  WINED3DFMT_R16G16_UNORM,       2, sizeof(short int)},
  47    {D3DDECLTYPE_USHORT4N,  WINED3DFMT_R16G16B16A16_UNORM, 4, sizeof(short int)},
  48    {D3DDECLTYPE_UDEC3,     WINED3DFMT_R10G10B10A2_UINT,   3, sizeof(short int)},
  49    {D3DDECLTYPE_DEC3N,     WINED3DFMT_R10G10B10A2_SNORM,  3, sizeof(short int)},
  50    {D3DDECLTYPE_FLOAT16_2, WINED3DFMT_R16G16_FLOAT,       2, sizeof(short int)},
  51    {D3DDECLTYPE_FLOAT16_4, WINED3DFMT_R16G16B16A16_FLOAT, 4, sizeof(short int)}};
  52
  53 #define D3D_DECL_SIZE(type)          d3d_dtype_lookup[type].size
  54 #define D3D_DECL_TYPESIZE(type)      d3d_dtype_lookup[type].typesize
  55
  56 HRESULT vdecl_convert_fvf(
  57     DWORD fvf,
  58     D3DVERTEXELEMENT9** ppVertexElements) {
  59
  60     unsigned int idx, idx2;
  61     unsigned int offset;
  62     BOOL has_pos = (fvf & D3DFVF_POSITION_MASK) != 0;
  63     BOOL has_blend = (fvf & D3DFVF_XYZB5) > D3DFVF_XYZRHW;
  64     BOOL has_blend_idx = has_blend &&
  65        (((fvf & D3DFVF_XYZB5) == D3DFVF_XYZB5) ||
  66         (fvf & D3DFVF_LASTBETA_D3DCOLOR) ||
  67         (fvf & D3DFVF_LASTBETA_UBYTE4));
  68     BOOL has_normal = (fvf & D3DFVF_NORMAL) != 0;
  69     BOOL has_psize = (fvf & D3DFVF_PSIZE) != 0;
  70
  71     BOOL has_diffuse = (fvf & D3DFVF_DIFFUSE) != 0;
  72     BOOL has_specular = (fvf & D3DFVF_SPECULAR) !=0;
  73
  74     DWORD num_textures = (fvf & D3DFVF_TEXCOUNT_MASK) >> D3DFVF_TEXCOUNT_SHIFT;
  75     DWORD texcoords = (fvf & 0xFFFF0000) >> 16;
  76
  77     D3DVERTEXELEMENT9 end_element = D3DDECL_END();
  78     D3DVERTEXELEMENT9 *elements = NULL;
  79
  80     unsigned int size;
  81     DWORD num_blends = 1 + (((fvf & D3DFVF_XYZB5) - D3DFVF_XYZB1) >> 1);
  82     if (has_blend_idx) num_blends--;
  83
  84     /* Compute declaration size */
  85     size = has_pos + (has_blend && num_blends > 0) + has_blend_idx + has_normal +
  86            has_psize + has_diffuse + has_specular + num_textures + 1;
  87
  88     /* convert the declaration */
  89     elements = HeapAlloc(GetProcessHeap(), 0, size * sizeof(D3DVERTEXELEMENT9));
  90     if (!elements)
  91         return D3DERR_OUTOFVIDEOMEMORY;
  92
  93     elements[size-1] = end_element;
  94     idx = 0;
  95     if (has_pos) {
  96         if (!has_blend && (fvf & D3DFVF_XYZRHW)) {
  97             elements[idx].Type = D3DDECLTYPE_FLOAT4;
  98             elements[idx].Usage = D3DDECLUSAGE_POSITIONT;
  99         }
 100         else if (!has_blend && (fvf & D3DFVF_XYZW) == D3DFVF_XYZW) {
 101             elements[idx].Type = D3DDECLTYPE_FLOAT4;
 102             elements[idx].Usage = D3DDECLUSAGE_POSITION;
 103         }
 104         else {
 105             elements[idx].Type = D3DDECLTYPE_FLOAT3;
 106             elements[idx].Usage = D3DDECLUSAGE_POSITION;
 107         }
 108         elements[idx].UsageIndex = 0;
 109         idx++;
 110     }
 111     if (has_blend && (num_blends > 0)) {
 112         if (((fvf & D3DFVF_XYZB5) == D3DFVF_XYZB2) && (fvf & D3DFVF_LASTBETA_D3DCOLOR))
 113             elements[idx].Type = D3DDECLTYPE_D3DCOLOR;
 114         else {
 115             switch(num_blends) {
 116                 case 1: elements[idx].Type = D3DDECLTYPE_FLOAT1; break;
 117                 case 2: elements[idx].Type = D3DDECLTYPE_FLOAT2; break;
 118                 case 3: elements[idx].Type = D3DDECLTYPE_FLOAT3; break;
 119                 case 4: elements[idx].Type = D3DDECLTYPE_FLOAT4; break;
 120                 default:
 121                     ERR("Unexpected amount of blend values: %u\n", num_blends);
 122             }
 123         }
 124         elements[idx].Usage = D3DDECLUSAGE_BLENDWEIGHT;
 125         elements[idx].UsageIndex = 0;
 126         idx++;
 127     }
 128     if (has_blend_idx) {
 129         if (fvf & D3DFVF_LASTBETA_UBYTE4 ||
 130             (((fvf & D3DFVF_XYZB5) == D3DFVF_XYZB2) && (fvf & D3DFVF_LASTBETA_D3DCOLOR)))
 131             elements[idx].Type = D3DDECLTYPE_UBYTE4;
 132         else if (fvf & D3DFVF_LASTBETA_D3DCOLOR)
 133             elements[idx].Type = D3DDECLTYPE_D3DCOLOR;
 134         else
 135             elements[idx].Type = D3DDECLTYPE_FLOAT1;
 136         elements[idx].Usage = D3DDECLUSAGE_BLENDINDICES;
 137         elements[idx].UsageIndex = 0;
 138         idx++;
 139     }
 140     if (has_normal) {
 141         elements[idx].Type = D3DDECLTYPE_FLOAT3;
 142         elements[idx].Usage = D3DDECLUSAGE_NORMAL;
 143         elements[idx].UsageIndex = 0;
 144         idx++;
 145     }
 146     if (has_psize) {
 147         elements[idx].Type = D3DDECLTYPE_FLOAT1;
 148         elements[idx].Usage = D3DDECLUSAGE_PSIZE;
 149         elements[idx].UsageIndex = 0;
 150         idx++;
 151     }
 152     if (has_diffuse) {
 153         elements[idx].Type = D3DDECLTYPE_D3DCOLOR;
 154         elements[idx].Usage = D3DDECLUSAGE_COLOR;
 155         elements[idx].UsageIndex = 0;
 156         idx++;
 157     }
 158     if (has_specular) {
 159         elements[idx].Type = D3DDECLTYPE_D3DCOLOR;
 160         elements[idx].Usage = D3DDECLUSAGE_COLOR;
 161         elements[idx].UsageIndex = 1;
 162         idx++;
 163     }
 164     for (idx2 = 0; idx2 < num_textures; idx2++) {
 165         unsigned int numcoords = (texcoords >> (idx2*2)) & 0x03;
 166         switch (numcoords) {
 167             case D3DFVF_TEXTUREFORMAT1:
 168                 elements[idx].Type = D3DDECLTYPE_FLOAT1;
 169                 break;
 170             case D3DFVF_TEXTUREFORMAT2:
 171                 elements[idx].Type = D3DDECLTYPE_FLOAT2;
 172                 break;
 173             case D3DFVF_TEXTUREFORMAT3:
 174                 elements[idx].Type = D3DDECLTYPE_FLOAT3;
 175                 break;
 176             case D3DFVF_TEXTUREFORMAT4:
 177                 elements[idx].Type = D3DDECLTYPE_FLOAT4;
 178                 break;
 179         }
 180         elements[idx].Usage = D3DDECLUSAGE_TEXCOORD;
 181         elements[idx].UsageIndex = idx2;
 182         idx++;
 183     }
 184
 185     /* Now compute offsets, and initialize the rest of the fields */
 186     for (idx = 0, offset = 0; idx < size-1; idx++) {
 187         elements[idx].Stream = 0;
 188         elements[idx].Method = D3DDECLMETHOD_DEFAULT;
 189         elements[idx].Offset = offset;
 190         offset += D3D_DECL_SIZE(elements[idx].Type) * D3D_DECL_TYPESIZE(elements[idx].Type);
 191     }
 192
 193     *ppVertexElements = elements;
 194     return D3D_OK;
 195 }
 196
 197 /* IDirect3DVertexDeclaration9 IUnknown parts follow: */
 198 static HRESULT WINAPI IDirect3DVertexDeclaration9Impl_QueryInterface(LPDIRECT3DVERTEXDECLARATION9 iface, REFIID riid, LPVOID* ppobj) {
 199     IDirect3DVertexDeclaration9Impl *This = (IDirect3DVertexDeclaration9Impl *)iface;
 200
 201     if (IsEqualGUID(riid, &IID_IUnknown)
 202         || IsEqualGUID(riid, &IID_IDirect3DVertexDeclaration9)) {
 203         IDirect3DVertexDeclaration9_AddRef(iface);
 204         *ppobj = This;
 205         return S_OK;
 206     }
 207
 208     WARN("(%p)->(%s,%p),not found\n", This, debugstr_guid(riid), ppobj);
 209     *ppobj = NULL;
 210     return E_NOINTERFACE;
 211 }
 212
 213 static ULONG WINAPI IDirect3DVertexDeclaration9Impl_AddRef(LPDIRECT3DVERTEXDECLARATION9 iface) {
 214     IDirect3DVertexDeclaration9Impl *This = (IDirect3DVertexDeclaration9Impl *)iface;
 215     ULONG ref = InterlockedIncrement(&This->ref);
 216
 217     TRACE("(%p) : AddRef from %d\n", This, ref - 1);
 218
 219     if(ref == 1) {
 220         IDirect3DDevice9Ex_AddRef(This->parentDevice);
 221     }
 222
 223     return ref;
 224 }
 225
 226 void IDirect3DVertexDeclaration9Impl_Destroy(LPDIRECT3DVERTEXDECLARATION9 iface) {
 227     IDirect3DVertexDeclaration9Impl *This = (IDirect3DVertexDeclaration9Impl *)iface;
 228
 229     if(This->ref != 0) {
 230         /* Should not happen unless wine has a bug or the application releases references it does not own */
 231         ERR("Destroying vdecl with ref != 0\n");
 232     }
 233
 234     wined3d_mutex_lock();
 235     IWineD3DVertexDeclaration_Release(This->wineD3DVertexDeclaration);
 236     wined3d_mutex_unlock();
 237
 238     HeapFree(GetProcessHeap(), 0, This->elements);
 239     HeapFree(GetProcessHeap(), 0, This);
 240 }
 241
 242 static ULONG WINAPI IDirect3DVertexDeclaration9Impl_Release(LPDIRECT3DVERTEXDECLARATION9 iface) {
 243     IDirect3DVertexDeclaration9Impl *This = (IDirect3DVertexDeclaration9Impl *)iface;
 244     ULONG ref = InterlockedDecrement(&This->ref);
 245
 246     TRACE("(%p) : ReleaseRef to %d\n", This, ref);
 247
 248     if (ref == 0) {
 249         IDirect3DDevice9Ex *parentDevice = This->parentDevice;
 250
 251         if(!This->convFVF) {
 252             IDirect3DVertexDeclaration9Impl_Release(iface);
 253         }
 254         IDirect3DDevice9Ex_Release(parentDevice);
 255     }
 256     return ref;
 257 }
 258
 259 /* IDirect3DVertexDeclaration9 Interface follow: */
 260 static HRESULT WINAPI IDirect3DVertexDeclaration9Impl_GetDevice(LPDIRECT3DVERTEXDECLARATION9 iface, IDirect3DDevice9** ppDevice) {
 261     IDirect3DVertexDeclaration9Impl *This = (IDirect3DVertexDeclaration9Impl *)iface;
 262     IWineD3DDevice *myDevice = NULL;
 263     HRESULT hr = D3D_OK;
 264
 265     TRACE("(%p) : Relay\n", iface);
 266
 267     wined3d_mutex_lock();
 268     hr = IWineD3DVertexDeclaration_GetDevice(This->wineD3DVertexDeclaration, &myDevice);
 269     if (hr == D3D_OK && myDevice != NULL) {
 270         hr = IWineD3DDevice_GetParent(myDevice, (IUnknown **)ppDevice);
 271         IWineD3DDevice_Release(myDevice);
 272     }
 273     wined3d_mutex_unlock();
 274
 275     return hr;
 276 }
 277
 278 static HRESULT WINAPI IDirect3DVertexDeclaration9Impl_GetDeclaration(LPDIRECT3DVERTEXDECLARATION9 iface, D3DVERTEXELEMENT9* pDecl, UINT* pNumElements) {
 279     IDirect3DVertexDeclaration9Impl *This = (IDirect3DVertexDeclaration9Impl *)iface;
 280
 281     TRACE("(%p) : pDecl %p, pNumElements %p)\n", This, pDecl, pNumElements);
 282
 283     *pNumElements = This->element_count;
 284
 285     /* Passing a NULL pDecl is used to just retrieve the number of elements */
 286     if (!pDecl) {
 287         TRACE("NULL pDecl passed. Returning D3D_OK.\n");
 288         return D3D_OK;
 289     }
 290
 291     TRACE("Copying %p to %p\n", This->elements, pDecl);
 292     CopyMemory(pDecl, This->elements, This->element_count * sizeof(D3DVERTEXELEMENT9));
 293
 294     return D3D_OK;
 295 }
 296
 297 static const IDirect3DVertexDeclaration9Vtbl Direct3DVertexDeclaration9_Vtbl =
 298 {
 299     /* IUnknown */
 300     IDirect3DVertexDeclaration9Impl_QueryInterface,
 301     IDirect3DVertexDeclaration9Impl_AddRef,
 302     IDirect3DVertexDeclaration9Impl_Release,
 303     /* IDirect3DVertexDeclaration9 */
 304     IDirect3DVertexDeclaration9Impl_GetDevice,
 305     IDirect3DVertexDeclaration9Impl_GetDeclaration
 306 };
 307
 308 static HRESULT convert_to_wined3d_declaration(const D3DVERTEXELEMENT9* d3d9_elements,
 309         WINED3DVERTEXELEMENT **wined3d_elements, UINT *element_count)
 310 {
 311     const D3DVERTEXELEMENT9* element;
 312     UINT count = 1;
 313     UINT i;
 314
 315     TRACE("d3d9_elements %p, wined3d_elements %p\n", d3d9_elements, wined3d_elements);
 316
 317     element = d3d9_elements;
 318     while (element++->Stream != 0xff && count++ < 128);
 319
 320     if (count == 128) return E_FAIL;
 321
 322     /* Skip the END element */
 323     --count;
 324
 325     *wined3d_elements = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WINED3DVERTEXELEMENT));
 326     if (!*wined3d_elements) {
 327         FIXME("Memory allocation failed\n");
 328         return D3DERR_OUTOFVIDEOMEMORY;
 329     }
 330
 331     for (i = 0; i < count; ++i)
 332     {
 333         if (d3d9_elements[i].Type >= (sizeof(d3d_dtype_lookup) / sizeof(*d3d_dtype_lookup)))
 334         {
 335             WARN("Invalid element type %#x.\n", d3d9_elements[i].Type);
 336             HeapFree(GetProcessHeap(), 0, *wined3d_elements);
 337             return E_FAIL;
 338         }
 339         (*wined3d_elements)[i].format = d3d_dtype_lookup[d3d9_elements[i].Type].format;
 340         (*wined3d_elements)[i].input_slot = d3d9_elements[i].Stream;
 341         (*wined3d_elements)[i].offset = d3d9_elements[i].Offset;
 342         (*wined3d_elements)[i].output_slot = ~0U;
 343         (*wined3d_elements)[i].method = d3d9_elements[i].Method;
 344         (*wined3d_elements)[i].usage = d3d9_elements[i].Usage;
 345         (*wined3d_elements)[i].usage_idx = d3d9_elements[i].UsageIndex;
 346     }
 347
 348     *element_count = count;
 349
 350     return D3D_OK;
 351 }
 352
 353 /* IDirect3DDevice9 IDirect3DVertexDeclaration9 Methods follow: */
 354 HRESULT  WINAPI  IDirect3DDevice9Impl_CreateVertexDeclaration(LPDIRECT3DDEVICE9EX iface, CONST D3DVERTEXELEMENT9* pVertexElements, IDirect3DVertexDeclaration9** ppDecl) {
 355
 356     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
 357     IDirect3DVertexDeclaration9Impl *object = NULL;
 358     WINED3DVERTEXELEMENT* wined3d_elements;
 359     UINT wined3d_element_count;
 360     UINT element_count;
 361     HRESULT hr;
 362
 363     TRACE("(%p) : Relay\n", iface);
 364     if (NULL == ppDecl) {
 365         WARN("(%p) : Caller passed NULL As ppDecl, returning D3DERR_INVALIDCALL\n",This);
 366         return D3DERR_INVALIDCALL;
 367     }
 368
 369     hr = convert_to_wined3d_declaration(pVertexElements, &wined3d_elements, &wined3d_element_count);
 370     if (FAILED(hr))
 371     {
 372         WARN("(%p) : Error parsing vertex declaration\n", This);
 373         return hr;
 374     }
 375
 376     /* Allocate the storage for the device */
 377     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirect3DVertexDeclaration9Impl));
 378     if (NULL == object) {
 379         HeapFree(GetProcessHeap(), 0, wined3d_elements);
 380         FIXME("Allocation of memory failed, returning D3DERR_OUTOFVIDEOMEMORY\n");
 381         return D3DERR_OUTOFVIDEOMEMORY;
 382     }
 383
 384     object->lpVtbl = &Direct3DVertexDeclaration9_Vtbl;
 385     object->ref = 0;
 386
 387     element_count = wined3d_element_count + 1;
 388     object->elements = HeapAlloc(GetProcessHeap(), 0, element_count * sizeof(D3DVERTEXELEMENT9));
 389     if (!object->elements) {
 390         HeapFree(GetProcessHeap(), 0, wined3d_elements);
 391         HeapFree(GetProcessHeap(), 0, object);
 392         ERR("Memory allocation failed\n");
 393         return D3DERR_OUTOFVIDEOMEMORY;
 394     }
 395     CopyMemory(object->elements, pVertexElements, element_count * sizeof(D3DVERTEXELEMENT9));
 396     object->element_count = element_count;
 397
 398     wined3d_mutex_lock();
 399     hr = IWineD3DDevice_CreateVertexDeclaration(This->WineD3DDevice, &object->wineD3DVertexDeclaration,
 400             (IUnknown *)object, wined3d_elements, wined3d_element_count);
 401     wined3d_mutex_unlock();
 402
 403     HeapFree(GetProcessHeap(), 0, wined3d_elements);
 404
 405     if (FAILED(hr)) {
 406
 407         /* free up object */
 408         WARN("(%p) call to IWineD3DDevice_CreateVertexDeclaration failed\n", This);
 409         HeapFree(GetProcessHeap(), 0, object->elements);
 410         HeapFree(GetProcessHeap(), 0, object);
 411     } else {
 412         object->parentDevice = iface;
 413         *ppDecl = (LPDIRECT3DVERTEXDECLARATION9) object;
 414         IDirect3DVertexDeclaration9_AddRef(*ppDecl);
 415          TRACE("(%p) : Created vertex declaration %p\n", This, object);
 416     }
 417     return hr;
 418 }
 419
 420 HRESULT  WINAPI  IDirect3DDevice9Impl_SetVertexDeclaration(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexDeclaration9* pDecl) {
 421     IDirect3DDevice9Impl *This = (IDirect3DDevice9Impl *)iface;
 422     IDirect3DVertexDeclaration9Impl *pDeclImpl = (IDirect3DVertexDeclaration9Impl *)pDecl;
 423     HRESULT hr = D3D_OK;
 424
 425     TRACE("(%p) : Relay\n", iface);
 426
 427     wined3d_mutex_lock();
 428     hr = IWineD3DDevice_SetVertexDeclaration(This->WineD3DDevice, pDeclImpl == NULL ? NULL : pDeclImpl->wineD3DVertexDeclaration);
 429     wined3d_mutex_unlock();
 430
 431     return hr;
 432 }
 433
 434 HRESULT  WINAPI  IDirect3DDevice9Impl_GetVertexDeclaration(LPDIRECT3DDEVICE9EX iface, IDirect3DVertexDeclaration9** ppDecl) {
 435     IDirect3DDevice9Impl* This = (IDirect3DDevice9Impl*) iface;
 436     IWineD3DVertexDeclaration* pTest = NULL;
 437     HRESULT hr = D3D_OK;
 438
 439     TRACE("(%p) : Relay+\n", iface);
 440
 441     if (NULL == ppDecl) {
 442       return D3DERR_INVALIDCALL;
 443     }
 444
 445     *ppDecl = NULL;
 446
 447     wined3d_mutex_lock();
 448     hr = IWineD3DDevice_GetVertexDeclaration(This->WineD3DDevice, &pTest);
 449     if (hr == D3D_OK && NULL != pTest) {
 450         IWineD3DVertexDeclaration_GetParent(pTest, (IUnknown **)ppDecl);
 451         IWineD3DVertexDeclaration_Release(pTest);
 452     } else {
 453         *ppDecl = NULL;
 454     }
 455     wined3d_mutex_unlock();
 456
 457     TRACE("(%p) : returning %p\n", This, *ppDecl);
 458     return hr;
 459 }