dlls/d2d1/bitmap.c

   1 /*
   2  * Copyright 2014 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 #include "d2d1_private.h"
  20 #include "wincodec.h"
  21
  22 WINE_DEFAULT_DEBUG_CHANNEL(d2d);
  23
  24 static inline struct d2d_bitmap *impl_from_ID2D1Bitmap1(ID2D1Bitmap1 *iface)
  25 {
  26     return CONTAINING_RECORD(iface, struct d2d_bitmap, ID2D1Bitmap1_iface);
  27 }
  28
  29 static HRESULT STDMETHODCALLTYPE d2d_bitmap_QueryInterface(ID2D1Bitmap1 *iface, REFIID iid, void **out)
  30 {
  31     TRACE("iface %p, iid %s, out %p.\n", iface, debugstr_guid(iid), out);
  32
  33     if (IsEqualGUID(iid, &IID_ID2D1Bitmap1)
  34             || IsEqualGUID(iid, &IID_ID2D1Bitmap)
  35             || IsEqualGUID(iid, &IID_ID2D1Image)
  36             || IsEqualGUID(iid, &IID_ID2D1Resource)
  37             || IsEqualGUID(iid, &IID_IUnknown))
  38     {
  39         ID2D1Bitmap1_AddRef(iface);
  40         *out = iface;
  41         return S_OK;
  42     }
  43
  44     WARN("%s not implemented, returning E_NOINTERFACE.\n", debugstr_guid(iid));
  45
  46     *out = NULL;
  47     return E_NOINTERFACE;
  48 }
  49
  50 static ULONG STDMETHODCALLTYPE d2d_bitmap_AddRef(ID2D1Bitmap1 *iface)
  51 {
  52     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
  53     ULONG refcount = InterlockedIncrement(&bitmap->refcount);
  54
  55     TRACE("%p increasing refcount to %u.\n", iface, refcount);
  56
  57     return refcount;
  58 }
  59
  60 static ULONG STDMETHODCALLTYPE d2d_bitmap_Release(ID2D1Bitmap1 *iface)
  61 {
  62     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
  63     ULONG refcount = InterlockedDecrement(&bitmap->refcount);
  64
  65     TRACE("%p decreasing refcount to %u.\n", iface, refcount);
  66
  67     if (!refcount)
  68     {
  69         if (bitmap->srv)
  70             ID3D10ShaderResourceView_Release(bitmap->srv);
  71         if (bitmap->rtv)
  72             ID3D10RenderTargetView_Release(bitmap->rtv);
  73         if (bitmap->surface)
  74             IDXGISurface_Release(bitmap->surface);
  75         ID3D10Resource_Release(bitmap->resource);
  76         ID2D1Factory_Release(bitmap->factory);
  77         heap_free(bitmap);
  78     }
  79
  80     return refcount;
  81 }
  82
  83 static void STDMETHODCALLTYPE d2d_bitmap_GetFactory(ID2D1Bitmap1 *iface, ID2D1Factory **factory)
  84 {
  85     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
  86
  87     TRACE("iface %p, factory %p.\n", iface, factory);
  88
  89     ID2D1Factory_AddRef(*factory = bitmap->factory);
  90 }
  91
  92 static D2D1_SIZE_F * STDMETHODCALLTYPE d2d_bitmap_GetSize(ID2D1Bitmap1 *iface, D2D1_SIZE_F *size)
  93 {
  94     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
  95
  96     TRACE("iface %p, size %p.\n", iface, size);
  97
  98     size->width = bitmap->pixel_size.width / (bitmap->dpi_x / 96.0f);
  99     size->height = bitmap->pixel_size.height / (bitmap->dpi_y / 96.0f);
 100     return size;
 101 }
 102
 103 static D2D1_SIZE_U * STDMETHODCALLTYPE d2d_bitmap_GetPixelSize(ID2D1Bitmap1 *iface, D2D1_SIZE_U *pixel_size)
 104 {
 105     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
 106
 107     TRACE("iface %p, pixel_size %p.\n", iface, pixel_size);
 108
 109     *pixel_size = bitmap->pixel_size;
 110     return pixel_size;
 111 }
 112
 113 static D2D1_PIXEL_FORMAT * STDMETHODCALLTYPE d2d_bitmap_GetPixelFormat(ID2D1Bitmap1 *iface, D2D1_PIXEL_FORMAT *format)
 114 {
 115     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
 116
 117     TRACE("iface %p, format %p.\n", iface, format);
 118
 119     *format = bitmap->format;
 120     return format;
 121 }
 122
 123 static void STDMETHODCALLTYPE d2d_bitmap_GetDpi(ID2D1Bitmap1 *iface, float *dpi_x, float *dpi_y)
 124 {
 125     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
 126
 127     TRACE("iface %p, dpi_x %p, dpi_y %p.\n", iface, dpi_x, dpi_y);
 128
 129     *dpi_x = bitmap->dpi_x;
 130     *dpi_y = bitmap->dpi_y;
 131 }
 132
 133 static HRESULT STDMETHODCALLTYPE d2d_bitmap_CopyFromBitmap(ID2D1Bitmap1 *iface,
 134         const D2D1_POINT_2U *dst_point, ID2D1Bitmap *bitmap, const D2D1_RECT_U *src_rect)
 135 {
 136     FIXME("iface %p, dst_point %p, bitmap %p, src_rect %p stub!\n", iface, dst_point, bitmap, src_rect);
 137
 138     return E_NOTIMPL;
 139 }
 140
 141 static HRESULT STDMETHODCALLTYPE d2d_bitmap_CopyFromRenderTarget(ID2D1Bitmap1 *iface,
 142         const D2D1_POINT_2U *dst_point, ID2D1RenderTarget *render_target, const D2D1_RECT_U *src_rect)
 143 {
 144     FIXME("iface %p, dst_point %p, render_target %p, src_rect %p stub!\n", iface, dst_point, render_target, src_rect);
 145
 146     return E_NOTIMPL;
 147 }
 148
 149 static HRESULT STDMETHODCALLTYPE d2d_bitmap_CopyFromMemory(ID2D1Bitmap1 *iface,
 150         const D2D1_RECT_U *dst_rect, const void *src_data, UINT32 pitch)
 151 {
 152     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
 153     ID3D10Device *device;
 154     D3D10_BOX box;
 155
 156     TRACE("iface %p, dst_rect %p, src_data %p, pitch %u.\n", iface, dst_rect, src_data, pitch);
 157
 158     if (dst_rect)
 159     {
 160         box.left = dst_rect->left;
 161         box.top = dst_rect->top;
 162         box.front = 0;
 163         box.right = dst_rect->right;
 164         box.bottom = dst_rect->bottom;
 165         box.back = 1;
 166     }
 167
 168     ID3D10Resource_GetDevice(bitmap->resource, &device);
 169     ID3D10Device_UpdateSubresource(device, bitmap->resource, 0, dst_rect ? &box : NULL, src_data, pitch, 0);
 170     ID3D10Device_Release(device);
 171
 172     return S_OK;
 173 }
 174
 175 static void STDMETHODCALLTYPE d2d_bitmap_GetColorContext(ID2D1Bitmap1 *iface, ID2D1ColorContext **context)
 176 {
 177     FIXME("iface %p, context %p stub!\n", iface, context);
 178 }
 179
 180 static D2D1_BITMAP_OPTIONS STDMETHODCALLTYPE d2d_bitmap_GetOptions(ID2D1Bitmap1 *iface)
 181 {
 182     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
 183
 184     TRACE("iface %p.\n", iface);
 185
 186     return bitmap->options;
 187 }
 188
 189 static HRESULT STDMETHODCALLTYPE d2d_bitmap_GetSurface(ID2D1Bitmap1 *iface, IDXGISurface **surface)
 190 {
 191     struct d2d_bitmap *bitmap = impl_from_ID2D1Bitmap1(iface);
 192
 193     TRACE("iface %p, surface %p.\n", iface, surface);
 194
 195     *surface = bitmap->surface;
 196     if (*surface)
 197         IDXGISurface_AddRef(*surface);
 198
 199     return *surface ? S_OK : D2DERR_INVALID_CALL;
 200 }
 201
 202 static HRESULT STDMETHODCALLTYPE d2d_bitmap_Map(ID2D1Bitmap1 *iface, D2D1_MAP_OPTIONS options,
 203         D2D1_MAPPED_RECT *mapped_rect)
 204 {
 205     FIXME("iface %p, options %#x, mapped_rect %p stub!\n", iface, options, mapped_rect);
 206
 207     return E_NOTIMPL;
 208 }
 209
 210 static HRESULT STDMETHODCALLTYPE d2d_bitmap_Unmap(ID2D1Bitmap1 *iface)
 211 {
 212     FIXME("iface %p stub!\n", iface);
 213
 214     return E_NOTIMPL;
 215 }
 216
 217 static const struct ID2D1Bitmap1Vtbl d2d_bitmap_vtbl =
 218 {
 219     d2d_bitmap_QueryInterface,
 220     d2d_bitmap_AddRef,
 221     d2d_bitmap_Release,
 222     d2d_bitmap_GetFactory,
 223     d2d_bitmap_GetSize,
 224     d2d_bitmap_GetPixelSize,
 225     d2d_bitmap_GetPixelFormat,
 226     d2d_bitmap_GetDpi,
 227     d2d_bitmap_CopyFromBitmap,
 228     d2d_bitmap_CopyFromRenderTarget,
 229     d2d_bitmap_CopyFromMemory,
 230     d2d_bitmap_GetColorContext,
 231     d2d_bitmap_GetOptions,
 232     d2d_bitmap_GetSurface,
 233     d2d_bitmap_Map,
 234     d2d_bitmap_Unmap,
 235 };
 236
 237 static BOOL format_supported(const D2D1_PIXEL_FORMAT *format)
 238 {
 239     unsigned int i;
 240
 241     static const D2D1_PIXEL_FORMAT supported_formats[] =
 242     {
 243         {DXGI_FORMAT_R32G32B32A32_FLOAT,    D2D1_ALPHA_MODE_PREMULTIPLIED},
 244         {DXGI_FORMAT_R32G32B32A32_FLOAT,    D2D1_ALPHA_MODE_IGNORE       },
 245         {DXGI_FORMAT_R16G16B16A16_FLOAT,    D2D1_ALPHA_MODE_PREMULTIPLIED},
 246         {DXGI_FORMAT_R16G16B16A16_FLOAT,    D2D1_ALPHA_MODE_IGNORE       },
 247         {DXGI_FORMAT_R16G16B16A16_UNORM,    D2D1_ALPHA_MODE_PREMULTIPLIED},
 248         {DXGI_FORMAT_R16G16B16A16_UNORM,    D2D1_ALPHA_MODE_IGNORE       },
 249         {DXGI_FORMAT_R8G8B8A8_UNORM,        D2D1_ALPHA_MODE_PREMULTIPLIED},
 250         {DXGI_FORMAT_R8G8B8A8_UNORM,        D2D1_ALPHA_MODE_IGNORE       },
 251         {DXGI_FORMAT_R8G8B8A8_UNORM_SRGB,   D2D1_ALPHA_MODE_PREMULTIPLIED},
 252         {DXGI_FORMAT_R8G8B8A8_UNORM_SRGB,   D2D1_ALPHA_MODE_IGNORE       },
 253         {DXGI_FORMAT_A8_UNORM,              D2D1_ALPHA_MODE_PREMULTIPLIED},
 254         {DXGI_FORMAT_A8_UNORM,              D2D1_ALPHA_MODE_STRAIGHT     },
 255         {DXGI_FORMAT_B8G8R8A8_UNORM,        D2D1_ALPHA_MODE_PREMULTIPLIED},
 256         {DXGI_FORMAT_B8G8R8A8_UNORM,        D2D1_ALPHA_MODE_IGNORE       },
 257         {DXGI_FORMAT_B8G8R8X8_UNORM,        D2D1_ALPHA_MODE_IGNORE       },
 258         {DXGI_FORMAT_B8G8R8A8_UNORM_SRGB,   D2D1_ALPHA_MODE_PREMULTIPLIED},
 259         {DXGI_FORMAT_B8G8R8A8_UNORM_SRGB,   D2D1_ALPHA_MODE_IGNORE       },
 260     };
 261
 262     for (i = 0; i < ARRAY_SIZE(supported_formats); ++i)
 263     {
 264         if (supported_formats[i].format == format->format
 265                 && supported_formats[i].alphaMode == format->alphaMode)
 266             return TRUE;
 267     }
 268
 269     return FALSE;
 270 }
 271
 272 static void d2d_bitmap_init(struct d2d_bitmap *bitmap, struct d2d_device_context *context,
 273         ID3D10Resource *resource, D2D1_SIZE_U size, const D2D1_BITMAP_PROPERTIES1 *desc)
 274 {
 275     ID3D10Device *d3d_device;
 276     HRESULT hr;
 277
 278     bitmap->ID2D1Bitmap1_iface.lpVtbl = &d2d_bitmap_vtbl;
 279     bitmap->refcount = 1;
 280     ID2D1Factory_AddRef(bitmap->factory = context->factory);
 281     ID3D10Resource_AddRef(bitmap->resource = resource);
 282     bitmap->pixel_size = size;
 283     bitmap->format = desc->pixelFormat;
 284     bitmap->dpi_x = desc->dpiX;
 285     bitmap->dpi_y = desc->dpiY;
 286     bitmap->options = desc->bitmapOptions;
 287
 288     if (d2d_device_context_is_dxgi_target(context))
 289         ID3D10Resource_QueryInterface(resource, &IID_IDXGISurface, (void **)&bitmap->surface);
 290
 291     ID3D10Resource_GetDevice(resource, &d3d_device);
 292     if (bitmap->options & D2D1_BITMAP_OPTIONS_TARGET)
 293     {
 294         if (FAILED(hr = ID3D10Device_CreateRenderTargetView(d3d_device, resource, NULL, &bitmap->rtv)))
 295             WARN("Failed to create RTV, hr %#x.\n", hr);
 296     }
 297
 298     if (!(bitmap->options & D2D1_BITMAP_OPTIONS_CANNOT_DRAW))
 299     {
 300         if (FAILED(hr = ID3D10Device_CreateShaderResourceView(d3d_device, resource, NULL, &bitmap->srv)))
 301             WARN("Failed to create SRV, hr %#x.\n", hr);
 302     }
 303     ID3D10Device_Release(d3d_device);
 304
 305     if (bitmap->dpi_x == 0.0f && bitmap->dpi_y == 0.0f)
 306     {
 307         bitmap->dpi_x = 96.0f;
 308         bitmap->dpi_y = 96.0f;
 309     }
 310 }
 311
 312 HRESULT d2d_bitmap_create(struct d2d_device_context *context, D2D1_SIZE_U size, const void *src_data,
 313         UINT32 pitch, const D2D1_BITMAP_PROPERTIES1 *desc, struct d2d_bitmap **bitmap)
 314 {
 315     D3D10_SUBRESOURCE_DATA resource_data;
 316     D2D1_BITMAP_PROPERTIES1 bitmap_desc;
 317     D3D10_TEXTURE2D_DESC texture_desc;
 318     ID3D10Texture2D *texture;
 319     HRESULT hr;
 320
 321     if (!format_supported(&desc->pixelFormat))
 322     {
 323         WARN("Tried to create bitmap with unsupported format {%#x / %#x}.\n",
 324                 desc->pixelFormat.format, desc->pixelFormat.alphaMode);
 325         return D2DERR_UNSUPPORTED_PIXEL_FORMAT;
 326     }
 327
 328     if (desc->dpiX == 0.0f && desc->dpiY == 0.0f)
 329     {
 330         bitmap_desc = *desc;
 331         bitmap_desc.dpiX = context->desc.dpiX;
 332         bitmap_desc.dpiY = context->desc.dpiY;
 333         desc = &bitmap_desc;
 334     }
 335     else if (desc->dpiX <= 0.0f || desc->dpiY <= 0.0f)
 336     {
 337         return E_INVALIDARG;
 338     }
 339
 340     texture_desc.Width = size.width;
 341     texture_desc.Height = size.height;
 342     if (!texture_desc.Width || !texture_desc.Height)
 343         texture_desc.Width = texture_desc.Height = 1;
 344     texture_desc.MipLevels = 1;
 345     texture_desc.ArraySize = 1;
 346     texture_desc.Format = desc->pixelFormat.format;
 347     texture_desc.SampleDesc.Count = 1;
 348     texture_desc.SampleDesc.Quality = 0;
 349     texture_desc.Usage = D3D10_USAGE_DEFAULT;
 350     texture_desc.BindFlags = 0;
 351     if (desc->bitmapOptions & D2D1_BITMAP_OPTIONS_TARGET)
 352         texture_desc.BindFlags |= D3D10_BIND_RENDER_TARGET;
 353     if (!(desc->bitmapOptions & D2D1_BITMAP_OPTIONS_CANNOT_DRAW))
 354         texture_desc.BindFlags |= D3D10_BIND_SHADER_RESOURCE;
 355     texture_desc.CPUAccessFlags = 0;
 356     texture_desc.MiscFlags = 0;
 357     if (desc->bitmapOptions & D2D1_BITMAP_OPTIONS_GDI_COMPATIBLE)
 358         texture_desc.MiscFlags |= D3D10_RESOURCE_MISC_GDI_COMPATIBLE;
 359
 360     resource_data.pSysMem = src_data;
 361     resource_data.SysMemPitch = pitch;
 362
 363     if (FAILED(hr = ID3D10Device_CreateTexture2D(context->d3d_device, &texture_desc,
 364             src_data ? &resource_data : NULL, &texture)))
 365     {
 366         ERR("Failed to create texture, hr %#x.\n", hr);
 367         return hr;
 368     }
 369
 370     if ((*bitmap = heap_alloc_zero(sizeof(**bitmap))))
 371     {
 372         d2d_bitmap_init(*bitmap, context, (ID3D10Resource *)texture, size, desc);
 373         TRACE("Created bitmap %p.\n", *bitmap);
 374     }
 375     ID3D10Texture2D_Release(texture);
 376
 377     return *bitmap ? S_OK : E_OUTOFMEMORY;
 378 }
 379
 380 HRESULT d2d_bitmap_create_shared(struct d2d_device_context *context, REFIID iid, void *data,
 381         const D2D1_BITMAP_PROPERTIES1 *desc, struct d2d_bitmap **bitmap)
 382 {
 383     D2D1_BITMAP_PROPERTIES1 d;
 384
 385     if (IsEqualGUID(iid, &IID_ID2D1Bitmap))
 386     {
 387         struct d2d_bitmap *src_impl = unsafe_impl_from_ID2D1Bitmap(data);
 388         ID3D10Device *device;
 389         HRESULT hr = S_OK;
 390
 391         if (src_impl->factory != context->factory)
 392         {
 393             hr = D2DERR_WRONG_FACTORY;
 394             goto failed;
 395         }
 396
 397         ID3D10Resource_GetDevice(src_impl->resource, &device);
 398         ID3D10Device_Release(device);
 399         if (device != context->d3d_device)
 400         {
 401             hr = D2DERR_UNSUPPORTED_OPERATION;
 402             goto failed;
 403         }
 404
 405         if (!desc)
 406         {
 407             d.pixelFormat = src_impl->format;
 408             d.dpiX = src_impl->dpi_x;
 409             d.dpiY = src_impl->dpi_y;
 410             d.bitmapOptions = src_impl->options;
 411             d.colorContext = NULL;
 412             desc = &d;
 413         }
 414
 415         if (!format_supported(&desc->pixelFormat))
 416         {
 417             WARN("Tried to create bitmap with unsupported format {%#x / %#x}.\n",
 418                     desc->pixelFormat.format, desc->pixelFormat.alphaMode);
 419             hr = D2DERR_UNSUPPORTED_PIXEL_FORMAT;
 420             goto failed;
 421         }
 422
 423         if (!(*bitmap = heap_alloc_zero(sizeof(**bitmap))))
 424         {
 425             hr = E_OUTOFMEMORY;
 426             goto failed;
 427         }
 428
 429         d2d_bitmap_init(*bitmap, context, src_impl->resource, src_impl->pixel_size, desc);
 430         TRACE("Created bitmap %p.\n", *bitmap);
 431
 432     failed:
 433         return hr;
 434     }
 435
 436     if (IsEqualGUID(iid, &IID_IDXGISurface) || IsEqualGUID(iid, &IID_IDXGISurface1))
 437     {
 438         DXGI_SURFACE_DESC surface_desc;
 439         IDXGISurface *surface = data;
 440         ID3D10Resource *resource;
 441         D2D1_SIZE_U pixel_size;
 442         ID3D10Device *device;
 443         HRESULT hr;
 444
 445         if (FAILED(IDXGISurface_QueryInterface(surface, &IID_ID3D10Resource, (void **)&resource)))
 446         {
 447             WARN("Failed to get d3d resource from dxgi surface.\n");
 448             return E_FAIL;
 449         }
 450
 451         ID3D10Resource_GetDevice(resource, &device);
 452         ID3D10Device_Release(device);
 453         if (device != context->d3d_device)
 454         {
 455             ID3D10Resource_Release(resource);
 456             return D2DERR_UNSUPPORTED_OPERATION;
 457         }
 458
 459         if (!(*bitmap = heap_alloc_zero(sizeof(**bitmap))))
 460         {
 461             ID3D10Resource_Release(resource);
 462             return E_OUTOFMEMORY;
 463         }
 464
 465
 466         if (FAILED(hr = IDXGISurface_GetDesc(surface, &surface_desc)))
 467         {
 468             WARN("Failed to get surface desc, hr %#x.\n", hr);
 469             ID3D10Resource_Release(resource);
 470             return hr;
 471         }
 472
 473         if (!desc)
 474         {
 475             memset(&d, 0, sizeof(d));
 476             d.pixelFormat.format = surface_desc.Format;
 477         }
 478         else
 479         {
 480             d = *desc;
 481             if (d.pixelFormat.format == DXGI_FORMAT_UNKNOWN)
 482                 d.pixelFormat.format = surface_desc.Format;
 483         }
 484
 485         if (d.dpiX == 0.0f || d.dpiY == 0.0f)
 486         {
 487             if (d.dpiX == 0.0f)
 488                 d.dpiX = context->desc.dpiX;
 489             if (d.dpiY == 0.0f)
 490                 d.dpiY = context->desc.dpiY;
 491         }
 492
 493         pixel_size.width = surface_desc.Width;
 494         pixel_size.height = surface_desc.Height;
 495
 496         d2d_bitmap_init(*bitmap, context, resource, pixel_size, &d);
 497         ID3D10Resource_Release(resource);
 498         TRACE("Created bitmap %p.\n", *bitmap);
 499
 500         return S_OK;
 501     }
 502
 503     WARN("Unhandled interface %s.\n", debugstr_guid(iid));
 504
 505     return E_INVALIDARG;
 506 }
 507
 508 HRESULT d2d_bitmap_create_from_wic_bitmap(struct d2d_device_context *context, IWICBitmapSource *bitmap_source,
 509         const D2D1_BITMAP_PROPERTIES1 *desc, struct d2d_bitmap **bitmap)
 510 {
 511     const D2D1_PIXEL_FORMAT *d2d_format;
 512     D2D1_BITMAP_PROPERTIES1 bitmap_desc;
 513     WICPixelFormatGUID wic_format;
 514     unsigned int bpp, data_size;
 515     D2D1_SIZE_U size;
 516     unsigned int i;
 517     WICRect rect;
 518     UINT32 pitch;
 519     HRESULT hr;
 520     void *data;
 521
 522     static const struct
 523     {
 524         const WICPixelFormatGUID *wic;
 525         D2D1_PIXEL_FORMAT d2d;
 526     }
 527     format_lookup[] =
 528     {
 529         {&GUID_WICPixelFormat32bppPBGRA, {DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED}},
 530         {&GUID_WICPixelFormat32bppBGR,   {DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE}},
 531     };
 532
 533     if (FAILED(hr = IWICBitmapSource_GetSize(bitmap_source, &size.width, &size.height)))
 534     {
 535         WARN("Failed to get bitmap size, hr %#x.\n", hr);
 536         return hr;
 537     }
 538
 539     if (!desc)
 540     {
 541         bitmap_desc.pixelFormat.format = DXGI_FORMAT_UNKNOWN;
 542         bitmap_desc.pixelFormat.alphaMode = D2D1_ALPHA_MODE_UNKNOWN;
 543         bitmap_desc.dpiX = 0.0f;
 544         bitmap_desc.dpiY = 0.0f;
 545         bitmap_desc.bitmapOptions = 0;
 546         bitmap_desc.colorContext = NULL;
 547     }
 548     else
 549     {
 550         bitmap_desc = *desc;
 551     }
 552
 553     if (FAILED(hr = IWICBitmapSource_GetPixelFormat(bitmap_source, &wic_format)))
 554     {
 555         WARN("Failed to get bitmap format, hr %#x.\n", hr);
 556         return hr;
 557     }
 558
 559     for (i = 0, d2d_format = NULL; i < ARRAY_SIZE(format_lookup); ++i)
 560     {
 561         if (IsEqualGUID(&wic_format, format_lookup[i].wic))
 562         {
 563             d2d_format = &format_lookup[i].d2d;
 564             break;
 565         }
 566     }
 567
 568     if (!d2d_format)
 569     {
 570         WARN("Unsupported WIC bitmap format %s.\n", debugstr_guid(&wic_format));
 571         return D2DERR_UNSUPPORTED_PIXEL_FORMAT;
 572     }
 573
 574     if (bitmap_desc.pixelFormat.format == DXGI_FORMAT_UNKNOWN)
 575         bitmap_desc.pixelFormat.format = d2d_format->format;
 576     if (bitmap_desc.pixelFormat.alphaMode == D2D1_ALPHA_MODE_UNKNOWN)
 577         bitmap_desc.pixelFormat.alphaMode = d2d_format->alphaMode;
 578
 579     switch (bitmap_desc.pixelFormat.format)
 580     {
 581         case DXGI_FORMAT_B8G8R8A8_UNORM:
 582             bpp = 4;
 583             break;
 584
 585         default:
 586             FIXME("Unhandled format %#x.\n", bitmap_desc.pixelFormat.format);
 587             return D2DERR_UNSUPPORTED_PIXEL_FORMAT;
 588     }
 589
 590     pitch = ((bpp * size.width) + 15) & ~15;
 591     if (pitch / bpp < size.width)
 592         return E_OUTOFMEMORY;
 593     if (!(data = heap_calloc(size.height, pitch)))
 594         return E_OUTOFMEMORY;
 595     data_size = size.height * pitch;
 596
 597     rect.X = 0;
 598     rect.Y = 0;
 599     rect.Width = size.width;
 600     rect.Height = size.height;
 601     if (FAILED(hr = IWICBitmapSource_CopyPixels(bitmap_source, &rect, pitch, data_size, data)))
 602     {
 603         WARN("Failed to copy bitmap pixels, hr %#x.\n", hr);
 604         heap_free(data);
 605         return hr;
 606     }
 607
 608     hr = d2d_bitmap_create(context, size, data, pitch, &bitmap_desc, bitmap);
 609
 610     heap_free(data);
 611
 612     return hr;
 613 }
 614
 615 struct d2d_bitmap *unsafe_impl_from_ID2D1Bitmap(ID2D1Bitmap *iface)
 616 {
 617     if (!iface)
 618         return NULL;
 619     assert(iface->lpVtbl == (ID2D1BitmapVtbl *)&d2d_bitmap_vtbl);
 620     return CONTAINING_RECORD(iface, struct d2d_bitmap, ID2D1Bitmap1_iface);
 621 }