git.oblomov.eu Git - wine/blob - dlls/dwrite/font.c

   1 /*
   2  *    Font and collections
   3  *
   4  * Copyright 2012 Nikolay Sivov for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include "dwrite.h"
  24 #include "dwrite_private.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
  29
  30 /* PANOSE is 10 bytes in size, need to pack the structure properly */
  31 #include "pshpack2.h"
  32 typedef struct
  33 {
  34     ULONG version;
  35     ULONG revision;
  36     ULONG checksumadj;
  37     ULONG magic;
  38     USHORT flags;
  39     USHORT unitsPerEm;
  40     ULONGLONG created;
  41     ULONGLONG modified;
  42     SHORT xMin;
  43     SHORT yMin;
  44     SHORT xMax;
  45     SHORT yMax;
  46     USHORT macStyle;
  47     USHORT lowestRecPPEM;
  48     SHORT direction_hint;
  49     SHORT index_format;
  50     SHORT glyphdata_format;
  51 } TT_HEAD;
  52
  53 typedef struct
  54 {
  55     ULONG Version;
  56     ULONG italicAngle;
  57     SHORT underlinePosition;
  58     SHORT underlineThickness;
  59     ULONG fixed_pitch;
  60     ULONG minmemType42;
  61     ULONG maxmemType42;
  62     ULONG minmemType1;
  63     ULONG maxmemType1;
  64 } TT_POST;
  65
  66 typedef struct
  67 {
  68     USHORT version;
  69     SHORT xAvgCharWidth;
  70     USHORT usWeightClass;
  71     USHORT usWidthClass;
  72     SHORT fsType;
  73     SHORT ySubscriptXSize;
  74     SHORT ySubscriptYSize;
  75     SHORT ySubscriptXOffset;
  76     SHORT ySubscriptYOffset;
  77     SHORT ySuperscriptXSize;
  78     SHORT ySuperscriptYSize;
  79     SHORT ySuperscriptXOffset;
  80     SHORT ySuperscriptYOffset;
  81     SHORT yStrikeoutSize;
  82     SHORT yStrikeoutPosition;
  83     SHORT sFamilyClass;
  84     PANOSE panose;
  85     ULONG ulUnicodeRange1;
  86     ULONG ulUnicodeRange2;
  87     ULONG ulUnicodeRange3;
  88     ULONG ulUnicodeRange4;
  89     CHAR achVendID[4];
  90     USHORT fsSelection;
  91     USHORT usFirstCharIndex;
  92     USHORT usLastCharIndex;
  93     /* According to the Apple spec, original version didn't have the below fields,
  94      * version numbers were taken from the OpenType spec.
  95      */
  96     /* version 0 (TrueType 1.5) */
  97     USHORT sTypoAscender;
  98     USHORT sTypoDescender;
  99     USHORT sTypoLineGap;
 100     USHORT usWinAscent;
 101     USHORT usWinDescent;
 102     /* version 1 (TrueType 1.66) */
 103     ULONG ulCodePageRange1;
 104     ULONG ulCodePageRange2;
 105     /* version 2 (OpenType 1.2) */
 106     SHORT sxHeight;
 107     SHORT sCapHeight;
 108     USHORT usDefaultChar;
 109     USHORT usBreakChar;
 110     USHORT usMaxContext;
 111 } TT_OS2_V2;
 112 #include "poppack.h"
 113
 114 #ifdef WORDS_BIGENDIAN
 115 #define GET_BE_WORD(x) (x)
 116 #define GET_BE_DWORD(x) (x)
 117 #else
 118 #define GET_BE_WORD(x) MAKEWORD(HIBYTE(x), LOBYTE(x))
 119 #define GET_BE_DWORD(x) MAKELONG(GET_BE_WORD(HIWORD(x)), GET_BE_WORD(LOWORD(x)));
 120 #endif
 121
 122 #define MS_MAKE_TAG(ch0, ch1, ch2, ch3) \
 123                     ((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) | \
 124                     ((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24))
 125
 126 #define MS_HEAD_TAG MS_MAKE_TAG('h','e','a','d')
 127 #define MS_OS2_TAG  MS_MAKE_TAG('O','S','/','2')
 128 #define MS_POST_TAG MS_MAKE_TAG('p','o','s','t')
 129
 130 struct dwrite_fontfamily {
 131     IDWriteFontFamily IDWriteFontFamily_iface;
 132     LONG ref;
 133
 134     WCHAR *familyname;
 135 };
 136
 137 struct dwrite_font {
 138     IDWriteFont IDWriteFont_iface;
 139     LONG ref;
 140
 141     IDWriteFontFamily *family;
 142     IDWriteFontFace *face;
 143     DWRITE_FONT_STYLE style;
 144     DWRITE_FONT_STRETCH stretch;
 145     DWRITE_FONT_WEIGHT weight;
 146     DWRITE_FONT_METRICS metrics;
 147 };
 148
 149 struct dwrite_fontface {
 150     IDWriteFontFace IDWriteFontFace_iface;
 151     LONG ref;
 152 };
 153
 154 static inline struct dwrite_fontface *impl_from_IDWriteFontFace(IDWriteFontFace *iface)
 155 {
 156     return CONTAINING_RECORD(iface, struct dwrite_fontface, IDWriteFontFace_iface);
 157 }
 158
 159 static inline struct dwrite_font *impl_from_IDWriteFont(IDWriteFont *iface)
 160 {
 161     return CONTAINING_RECORD(iface, struct dwrite_font, IDWriteFont_iface);
 162 }
 163
 164 static inline struct dwrite_fontfamily *impl_from_IDWriteFontFamily(IDWriteFontFamily *iface)
 165 {
 166     return CONTAINING_RECORD(iface, struct dwrite_fontfamily, IDWriteFontFamily_iface);
 167 }
 168
 169 static HRESULT WINAPI dwritefontface_QueryInterface(IDWriteFontFace *iface, REFIID riid, void **obj)
 170 {
 171     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 172
 173     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
 174
 175     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteFontFace))
 176     {
 177         *obj = iface;
 178         IDWriteFontFace_AddRef(iface);
 179         return S_OK;
 180     }
 181
 182     *obj = NULL;
 183     return E_NOINTERFACE;
 184 }
 185
 186 static ULONG WINAPI dwritefontface_AddRef(IDWriteFontFace *iface)
 187 {
 188     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 189     ULONG ref = InterlockedIncrement(&This->ref);
 190     TRACE("(%p)->(%d)\n", This, ref);
 191     return ref;
 192 }
 193
 194 static ULONG WINAPI dwritefontface_Release(IDWriteFontFace *iface)
 195 {
 196     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 197     ULONG ref = InterlockedDecrement(&This->ref);
 198
 199     TRACE("(%p)->(%d)\n", This, ref);
 200
 201     if (!ref)
 202         heap_free(This);
 203
 204     return S_OK;
 205 }
 206
 207 static DWRITE_FONT_FACE_TYPE WINAPI dwritefontface_GetType(IDWriteFontFace *iface)
 208 {
 209     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 210     FIXME("(%p): stub\n", This);
 211     return DWRITE_FONT_FACE_TYPE_UNKNOWN;
 212 }
 213
 214 static HRESULT WINAPI dwritefontface_GetFiles(IDWriteFontFace *iface, UINT32 *number_of_files,
 215     IDWriteFontFile **fontfiles)
 216 {
 217     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 218     FIXME("(%p)->(%p %p): stub\n", This, number_of_files, fontfiles);
 219     return E_NOTIMPL;
 220 }
 221
 222 static UINT32 WINAPI dwritefontface_GetIndex(IDWriteFontFace *iface)
 223 {
 224     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 225     FIXME("(%p): stub\n", This);
 226     return 0;
 227 }
 228
 229 static DWRITE_FONT_SIMULATIONS WINAPI dwritefontface_GetSimulations(IDWriteFontFace *iface)
 230 {
 231     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 232     FIXME("(%p): stub\n", This);
 233     return DWRITE_FONT_SIMULATIONS_NONE;
 234 }
 235
 236 static BOOL WINAPI dwritefontface_IsSymbolFont(IDWriteFontFace *iface)
 237 {
 238     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 239     FIXME("(%p): stub\n", This);
 240     return FALSE;
 241 }
 242
 243 static void WINAPI dwritefontface_GetMetrics(IDWriteFontFace *iface, DWRITE_FONT_METRICS *metrics)
 244 {
 245     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 246     FIXME("(%p)->(%p): stub\n", This, metrics);
 247 }
 248
 249 static UINT16 WINAPI dwritefontface_GetGlyphCount(IDWriteFontFace *iface)
 250 {
 251     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 252     FIXME("(%p): stub\n", This);
 253     return 0;
 254 }
 255
 256 static HRESULT WINAPI dwritefontface_GetDesignGlyphMetrics(IDWriteFontFace *iface,
 257     UINT16 const *glyph_indices, UINT32 glyph_count, DWRITE_GLYPH_METRICS *metrics, BOOL is_sideways)
 258 {
 259     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 260     FIXME("(%p)->(%p %u %p %d): stub\n", This, glyph_indices, glyph_count, metrics, is_sideways);
 261     return E_NOTIMPL;
 262 }
 263
 264 static HRESULT WINAPI dwritefontface_GetGlyphIndices(IDWriteFontFace *iface, UINT32 const *codepoints,
 265     UINT32 count, UINT16 *glyph_indices)
 266 {
 267     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 268     FIXME("(%p)->(%p %u %p): stub\n", This, codepoints, count, glyph_indices);
 269     return E_NOTIMPL;
 270 }
 271
 272 static HRESULT WINAPI dwritefontface_TryGetFontTable(IDWriteFontFace *iface, UINT32 table_tag,
 273     const void **table_data, UINT32 *table_size, void **context, BOOL *exists)
 274 {
 275     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 276     FIXME("(%p)->(%u %p %p %p %p): stub\n", This, table_tag, table_data, table_size, context, exists);
 277     return E_NOTIMPL;
 278 }
 279
 280 static void WINAPI dwritefontface_ReleaseFontTable(IDWriteFontFace *iface, void *table_context)
 281 {
 282     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 283     FIXME("(%p)->(%p): stub\n", This, table_context);
 284 }
 285
 286 static HRESULT WINAPI dwritefontface_GetGlyphRunOutline(IDWriteFontFace *iface, FLOAT emSize,
 287     UINT16 const *glyph_indices, FLOAT const* glyph_advances, DWRITE_GLYPH_OFFSET const *glyph_offsets,
 288     UINT32 glyph_count, BOOL is_sideways, BOOL is_rtl, IDWriteGeometrySink *geometrysink)
 289 {
 290     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 291     FIXME("(%p)->(%f %p %p %p %u %d %d %p): stub\n", This, emSize, glyph_indices, glyph_advances, glyph_offsets,
 292         glyph_count, is_sideways, is_rtl, geometrysink);
 293     return E_NOTIMPL;
 294 }
 295
 296 static HRESULT WINAPI dwritefontface_GetRecommendedRenderingMode(IDWriteFontFace *iface, FLOAT emSize,
 297     FLOAT pixels_per_dip, DWRITE_MEASURING_MODE mode, IDWriteRenderingParams* params, DWRITE_RENDERING_MODE* rendering_mode)
 298 {
 299     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 300     FIXME("(%p)->(%f %f %d %p %p): stub\n", This, emSize, pixels_per_dip, mode, params, rendering_mode);
 301     return E_NOTIMPL;
 302 }
 303
 304 static HRESULT WINAPI dwritefontface_GetGdiCompatibleMetrics(IDWriteFontFace *iface, FLOAT emSize, FLOAT pixels_per_dip,
 305     DWRITE_MATRIX const *transform, DWRITE_FONT_METRICS *metrics)
 306 {
 307     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 308     FIXME("(%p)->(%f %f %p %p): stub\n", This, emSize, pixels_per_dip, transform, metrics);
 309     return E_NOTIMPL;
 310 }
 311
 312 static HRESULT WINAPI dwritefontface_GetGdiCompatibleGlyphMetrics(IDWriteFontFace *iface, FLOAT emSize, FLOAT pixels_per_dip,
 313     DWRITE_MATRIX const *transform, BOOL use_gdi_natural, UINT16 const *glyph_indices, UINT32 glyph_count,
 314     DWRITE_GLYPH_METRICS *metrics, BOOL is_sideways)
 315 {
 316     struct dwrite_fontface *This = impl_from_IDWriteFontFace(iface);
 317     FIXME("(%p)->(%f %f %p %d %p %u %p %d): stub\n", This, emSize, pixels_per_dip, transform, use_gdi_natural, glyph_indices,
 318         glyph_count, metrics, is_sideways);
 319     return E_NOTIMPL;
 320 }
 321
 322 static const IDWriteFontFaceVtbl dwritefontfacevtbl = {
 323     dwritefontface_QueryInterface,
 324     dwritefontface_AddRef,
 325     dwritefontface_Release,
 326     dwritefontface_GetType,
 327     dwritefontface_GetFiles,
 328     dwritefontface_GetIndex,
 329     dwritefontface_GetSimulations,
 330     dwritefontface_IsSymbolFont,
 331     dwritefontface_GetMetrics,
 332     dwritefontface_GetGlyphCount,
 333     dwritefontface_GetDesignGlyphMetrics,
 334     dwritefontface_GetGlyphIndices,
 335     dwritefontface_TryGetFontTable,
 336     dwritefontface_ReleaseFontTable,
 337     dwritefontface_GetGlyphRunOutline,
 338     dwritefontface_GetRecommendedRenderingMode,
 339     dwritefontface_GetGdiCompatibleMetrics,
 340     dwritefontface_GetGdiCompatibleGlyphMetrics
 341 };
 342
 343 static HRESULT create_fontface(IDWriteFontFace **face)
 344 {
 345     struct dwrite_fontface *This;
 346
 347     *face = NULL;
 348
 349     This = heap_alloc(sizeof(struct dwrite_fontface));
 350     if (!This) return E_OUTOFMEMORY;
 351
 352     This->IDWriteFontFace_iface.lpVtbl = &dwritefontfacevtbl;
 353     This->ref = 1;
 354     *face = &This->IDWriteFontFace_iface;
 355
 356     return S_OK;
 357 }
 358
 359 static HRESULT WINAPI dwritefont_QueryInterface(IDWriteFont *iface, REFIID riid, void **obj)
 360 {
 361     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 362
 363     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
 364
 365     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteFont))
 366     {
 367         *obj = iface;
 368         IDWriteFont_AddRef(iface);
 369         return S_OK;
 370     }
 371
 372     *obj = NULL;
 373     return E_NOINTERFACE;
 374 }
 375
 376 static ULONG WINAPI dwritefont_AddRef(IDWriteFont *iface)
 377 {
 378     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 379     ULONG ref = InterlockedIncrement(&This->ref);
 380     TRACE("(%p)->(%d)\n", This, ref);
 381     return ref;
 382 }
 383
 384 static ULONG WINAPI dwritefont_Release(IDWriteFont *iface)
 385 {
 386     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 387     ULONG ref = InterlockedDecrement(&This->ref);
 388
 389     TRACE("(%p)->(%d)\n", This, ref);
 390
 391     if (!ref)
 392     {
 393         if (This->face) IDWriteFontFace_Release(This->face);
 394         IDWriteFontFamily_Release(This->family);
 395         heap_free(This);
 396     }
 397
 398     return S_OK;
 399 }
 400
 401 static HRESULT WINAPI dwritefont_GetFontFamily(IDWriteFont *iface, IDWriteFontFamily **family)
 402 {
 403     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 404     TRACE("(%p)->(%p)\n", This, family);
 405
 406     *family = This->family;
 407     IDWriteFontFamily_AddRef(*family);
 408     return S_OK;
 409 }
 410
 411 static DWRITE_FONT_WEIGHT WINAPI dwritefont_GetWeight(IDWriteFont *iface)
 412 {
 413     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 414     TRACE("(%p)\n", This);
 415     return This->weight;
 416 }
 417
 418 static DWRITE_FONT_STRETCH WINAPI dwritefont_GetStretch(IDWriteFont *iface)
 419 {
 420     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 421     TRACE("(%p)\n", This);
 422     return This->stretch;
 423 }
 424
 425 static DWRITE_FONT_STYLE WINAPI dwritefont_GetStyle(IDWriteFont *iface)
 426 {
 427     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 428     TRACE("(%p)\n", This);
 429     return This->style;
 430 }
 431
 432 static BOOL WINAPI dwritefont_IsSymbolFont(IDWriteFont *iface)
 433 {
 434     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 435     FIXME("(%p): stub\n", This);
 436     return FALSE;
 437 }
 438
 439 static HRESULT WINAPI dwritefont_GetFaceNames(IDWriteFont *iface, IDWriteLocalizedStrings **names)
 440 {
 441     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 442     FIXME("(%p)->(%p): stub\n", This, names);
 443     return E_NOTIMPL;
 444 }
 445
 446 static HRESULT WINAPI dwritefont_GetInformationalStrings(IDWriteFont *iface,
 447     DWRITE_INFORMATIONAL_STRING_ID stringid, IDWriteLocalizedStrings **strings, BOOL *exists)
 448 {
 449     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 450     FIXME("(%p)->(%d %p %p): stub\n", This, stringid, strings, exists);
 451     return E_NOTIMPL;
 452 }
 453
 454 static DWRITE_FONT_SIMULATIONS WINAPI dwritefont_GetSimulations(IDWriteFont *iface)
 455 {
 456     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 457     FIXME("(%p): stub\n", This);
 458     return DWRITE_FONT_SIMULATIONS_NONE;
 459 }
 460
 461 static void WINAPI dwritefont_GetMetrics(IDWriteFont *iface, DWRITE_FONT_METRICS *metrics)
 462 {
 463     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 464
 465     TRACE("(%p)->(%p)\n", This, metrics);
 466     *metrics = This->metrics;
 467 }
 468
 469 static HRESULT WINAPI dwritefont_HasCharacter(IDWriteFont *iface, UINT32 value, BOOL *exists)
 470 {
 471     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 472     FIXME("(%p)->(0x%08x %p): stub\n", This, value, exists);
 473     return E_NOTIMPL;
 474 }
 475
 476 static HRESULT WINAPI dwritefont_CreateFontFace(IDWriteFont *iface, IDWriteFontFace **face)
 477 {
 478     struct dwrite_font *This = impl_from_IDWriteFont(iface);
 479
 480     TRACE("(%p)->(%p)\n", This, face);
 481
 482     if (!This->face)
 483     {
 484         HRESULT hr = create_fontface(&This->face);
 485         if (FAILED(hr)) return hr;
 486     }
 487
 488     *face = This->face;
 489     IDWriteFontFace_AddRef(*face);
 490
 491     return S_OK;
 492 }
 493
 494 static const IDWriteFontVtbl dwritefontvtbl = {
 495     dwritefont_QueryInterface,
 496     dwritefont_AddRef,
 497     dwritefont_Release,
 498     dwritefont_GetFontFamily,
 499     dwritefont_GetWeight,
 500     dwritefont_GetStretch,
 501     dwritefont_GetStyle,
 502     dwritefont_IsSymbolFont,
 503     dwritefont_GetFaceNames,
 504     dwritefont_GetInformationalStrings,
 505     dwritefont_GetSimulations,
 506     dwritefont_GetMetrics,
 507     dwritefont_HasCharacter,
 508     dwritefont_CreateFontFace
 509 };
 510
 511
 512 static HRESULT WINAPI dwritefontfamily_QueryInterface(IDWriteFontFamily *iface, REFIID riid, void **obj)
 513 {
 514     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 515     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), obj);
 516
 517     if (IsEqualIID(riid, &IID_IUnknown) ||
 518         IsEqualIID(riid, &IID_IDWriteFontList) ||
 519         IsEqualIID(riid, &IID_IDWriteFontFamily))
 520     {
 521         *obj = iface;
 522         IDWriteFontFamily_AddRef(iface);
 523         return S_OK;
 524     }
 525
 526     *obj = NULL;
 527     return E_NOINTERFACE;
 528 }
 529
 530 static ULONG WINAPI dwritefontfamily_AddRef(IDWriteFontFamily *iface)
 531 {
 532     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 533     ULONG ref = InterlockedIncrement(&This->ref);
 534     TRACE("(%p)->(%d)\n", This, ref);
 535     return ref;
 536 }
 537
 538 static ULONG WINAPI dwritefontfamily_Release(IDWriteFontFamily *iface)
 539 {
 540     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 541     ULONG ref = InterlockedDecrement(&This->ref);
 542
 543     TRACE("(%p)->(%d)\n", This, ref);
 544
 545     if (!ref)
 546     {
 547         heap_free(This->familyname);
 548         heap_free(This);
 549     }
 550
 551     return S_OK;
 552 }
 553
 554 static HRESULT WINAPI dwritefontfamily_GetFontCollection(IDWriteFontFamily *iface, IDWriteFontCollection **collection)
 555 {
 556     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 557     FIXME("(%p)->(%p): stub\n", This, collection);
 558     return E_NOTIMPL;
 559 }
 560
 561 static UINT32 WINAPI dwritefontfamily_GetFontCount(IDWriteFontFamily *iface)
 562 {
 563     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 564     FIXME("(%p): stub\n", This);
 565     return 0;
 566 }
 567
 568 static HRESULT WINAPI dwritefontfamily_GetFont(IDWriteFontFamily *iface, UINT32 index, IDWriteFont **font)
 569 {
 570     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 571     FIXME("(%p)->(%u %p): stub\n", This, index, font);
 572     return E_NOTIMPL;
 573 }
 574
 575 static HRESULT WINAPI dwritefontfamily_GetFamilyNames(IDWriteFontFamily *iface, IDWriteLocalizedStrings **names)
 576 {
 577     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 578     static const WCHAR enusW[] = {'e','n','-','u','s',0};
 579     HRESULT hr;
 580
 581     TRACE("(%p)->(%p)\n", This, names);
 582
 583     hr = create_localizedstrings(names);
 584     if (FAILED(hr)) return hr;
 585
 586     return add_localizedstring(*names, enusW, This->familyname);
 587 }
 588
 589 static HRESULT WINAPI dwritefontfamily_GetFirstMatchingFont(IDWriteFontFamily *iface, DWRITE_FONT_WEIGHT weight,
 590     DWRITE_FONT_STRETCH stretch, DWRITE_FONT_STYLE style, IDWriteFont **font)
 591 {
 592     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 593     FIXME("(%p)->(%d %d %d %p): stub\n", This, weight, stretch, style, font);
 594     return E_NOTIMPL;
 595 }
 596
 597 static HRESULT WINAPI dwritefontfamily_GetMatchingFonts(IDWriteFontFamily *iface, DWRITE_FONT_WEIGHT weight,
 598     DWRITE_FONT_STRETCH stretch, DWRITE_FONT_STYLE style, IDWriteFontList **fonts)
 599 {
 600     struct dwrite_fontfamily *This = impl_from_IDWriteFontFamily(iface);
 601     FIXME("(%p)->(%d %d %d %p): stub\n", This, weight, stretch, style, fonts);
 602     return E_NOTIMPL;
 603 }
 604
 605 static const IDWriteFontFamilyVtbl fontfamilyvtbl = {
 606     dwritefontfamily_QueryInterface,
 607     dwritefontfamily_AddRef,
 608     dwritefontfamily_Release,
 609     dwritefontfamily_GetFontCollection,
 610     dwritefontfamily_GetFontCount,
 611     dwritefontfamily_GetFont,
 612     dwritefontfamily_GetFamilyNames,
 613     dwritefontfamily_GetFirstMatchingFont,
 614     dwritefontfamily_GetMatchingFonts
 615 };
 616
 617 static HRESULT create_fontfamily(const WCHAR *familyname, IDWriteFontFamily **family)
 618 {
 619     struct dwrite_fontfamily *This;
 620
 621     *family = NULL;
 622
 623     This = heap_alloc(sizeof(struct dwrite_fontfamily));
 624     if (!This) return E_OUTOFMEMORY;
 625
 626     This->IDWriteFontFamily_iface.lpVtbl = &fontfamilyvtbl;
 627     This->ref = 1;
 628     This->familyname = heap_strdupW(familyname);
 629
 630     *family = &This->IDWriteFontFamily_iface;
 631
 632     return S_OK;
 633 }
 634
 635 static void get_font_properties(struct dwrite_font *font, HDC hdc)
 636 {
 637     TT_OS2_V2 tt_os2;
 638     TT_HEAD tt_head;
 639     TT_POST tt_post;
 640     LONG size;
 641
 642     /* default stretch and weight to normal */
 643     font->stretch = DWRITE_FONT_STRETCH_NORMAL;
 644     font->weight = DWRITE_FONT_WEIGHT_NORMAL;
 645
 646     memset(&font->metrics, 0, sizeof(font->metrics));
 647
 648     size = GetFontData(hdc, MS_OS2_TAG, 0, NULL, 0);
 649     if (size != GDI_ERROR)
 650     {
 651         if (size > sizeof(tt_os2)) size = sizeof(tt_os2);
 652
 653         memset(&tt_os2, 0, sizeof(tt_os2));
 654         if (GetFontData(hdc, MS_OS2_TAG, 0, &tt_os2, size) != size) return;
 655
 656         /* DWRITE_FONT_STRETCH enumeration values directly match font data values */
 657         if (GET_BE_WORD(tt_os2.usWidthClass) <= DWRITE_FONT_STRETCH_ULTRA_EXPANDED)
 658             font->stretch = GET_BE_WORD(tt_os2.usWidthClass);
 659
 660         font->weight = GET_BE_WORD(tt_os2.usWeightClass);
 661         TRACE("stretch=%d, weight=%d\n", font->stretch, font->weight);
 662
 663         font->metrics.ascent    = GET_BE_WORD(tt_os2.sTypoAscender);
 664         font->metrics.descent   = GET_BE_WORD(tt_os2.sTypoDescender);
 665         font->metrics.lineGap   = GET_BE_WORD(tt_os2.sTypoLineGap);
 666         font->metrics.capHeight = GET_BE_WORD(tt_os2.sCapHeight);
 667         font->metrics.xHeight   = GET_BE_WORD(tt_os2.sxHeight);
 668         font->metrics.strikethroughPosition  = GET_BE_WORD(tt_os2.yStrikeoutPosition);
 669         font->metrics.strikethroughThickness = GET_BE_WORD(tt_os2.yStrikeoutSize);
 670     }
 671
 672     memset(&tt_head, 0, sizeof(tt_head));
 673     if (GetFontData(hdc, MS_HEAD_TAG, 0, &tt_head, sizeof(tt_head)) != GDI_ERROR)
 674     {
 675         font->metrics.designUnitsPerEm = GET_BE_WORD(tt_head.unitsPerEm);
 676     }
 677
 678     memset(&tt_post, 0, sizeof(tt_post));
 679     if (GetFontData(hdc, MS_POST_TAG, 0, &tt_post, sizeof(tt_post)) != GDI_ERROR)
 680     {
 681         font->metrics.underlinePosition = GET_BE_WORD(tt_post.underlinePosition);
 682         font->metrics.underlineThickness = GET_BE_WORD(tt_post.underlineThickness);
 683     }
 684 }
 685
 686 HRESULT create_font_from_logfont(const LOGFONTW *logfont, IDWriteFont **font)
 687 {
 688     const WCHAR* facename, *familyname;
 689     struct dwrite_font *This;
 690     IDWriteFontFamily *family;
 691     OUTLINETEXTMETRICW *otm;
 692     HRESULT hr;
 693     HFONT hfont;
 694     HDC hdc;
 695     int ret;
 696
 697     *font = NULL;
 698
 699     This = heap_alloc(sizeof(struct dwrite_font));
 700     if (!This) return E_OUTOFMEMORY;
 701
 702     hfont = CreateFontIndirectW(logfont);
 703     if (!hfont)
 704     {
 705         heap_free(This);
 706         return DWRITE_E_NOFONT;
 707     }
 708
 709     hdc = CreateCompatibleDC(0);
 710     SelectObject(hdc, hfont);
 711
 712     ret = GetOutlineTextMetricsW(hdc, 0, NULL);
 713     otm = heap_alloc(ret);
 714     otm->otmSize = ret;
 715     ret = GetOutlineTextMetricsW(hdc, otm->otmSize, otm);
 716
 717     get_font_properties(This, hdc);
 718
 719     DeleteDC(hdc);
 720     DeleteObject(hfont);
 721
 722     facename = (WCHAR*)((char*)otm + (ptrdiff_t)otm->otmpFaceName);
 723     familyname = (WCHAR*)((char*)otm + (ptrdiff_t)otm->otmpFamilyName);
 724     TRACE("facename=%s, familyname=%s\n", debugstr_w(facename), debugstr_w(familyname));
 725
 726     hr = create_fontfamily(familyname, &family);
 727     heap_free(otm);
 728     if (hr != S_OK)
 729     {
 730         heap_free(This);
 731         return hr;
 732     }
 733
 734     This->IDWriteFont_iface.lpVtbl = &dwritefontvtbl;
 735     This->ref = 1;
 736     This->face = NULL;
 737     This->family = family;
 738     This->style = logfont->lfItalic ? DWRITE_FONT_STYLE_ITALIC : DWRITE_FONT_STYLE_NORMAL;
 739
 740     *font = &This->IDWriteFont_iface;
 741
 742     return S_OK;
 743 }