dlls/dwrite/freetype.c

   1 /*
   2  *    FreeType integration
   3  *
   4  * Copyright 2014-2017 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 #if 0
  22 #pragma makedep unix
  23 #endif
  24
  25 #include "config.h"
  26
  27 #include <sys/types.h>
  28 #include <dlfcn.h>
  29
  30 #ifdef HAVE_FT2BUILD_H
  31 #include <ft2build.h>
  32 #include FT_GLYPH_H
  33 #include FT_FREETYPE_H
  34 #include FT_OUTLINE_H
  35 #include FT_TRUETYPE_TABLES_H
  36 #include FT_SIZES_H
  37 #endif /* HAVE_FT2BUILD_H */
  38
  39 #include "ntstatus.h"
  40 #define WIN32_NO_STATUS
  41 #include "windef.h"
  42 #include "wine/debug.h"
  43 #include "unixlib.h"
  44
  45 #include "dwrite_private.h"
  46
  47 #ifdef HAVE_FREETYPE
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
  50
  51 static void *ft_handle = NULL;
  52 static FT_Library library = 0;
  53 typedef struct
  54 {
  55     FT_Int major;
  56     FT_Int minor;
  57     FT_Int patch;
  58 } FT_Version_t;
  59
  60 #define MAKE_FUNCPTR(f) static typeof(f) * p##f = NULL
  61 MAKE_FUNCPTR(FT_Activate_Size);
  62 MAKE_FUNCPTR(FT_Done_Face);
  63 MAKE_FUNCPTR(FT_Done_FreeType);
  64 MAKE_FUNCPTR(FT_Done_Glyph);
  65 MAKE_FUNCPTR(FT_Done_Size);
  66 MAKE_FUNCPTR(FT_Get_First_Char);
  67 MAKE_FUNCPTR(FT_Get_Glyph);
  68 MAKE_FUNCPTR(FT_Get_Kerning);
  69 MAKE_FUNCPTR(FT_Get_Sfnt_Table);
  70 MAKE_FUNCPTR(FT_Glyph_Copy);
  71 MAKE_FUNCPTR(FT_Glyph_Get_CBox);
  72 MAKE_FUNCPTR(FT_Glyph_Transform);
  73 MAKE_FUNCPTR(FT_Init_FreeType);
  74 MAKE_FUNCPTR(FT_Library_Version);
  75 MAKE_FUNCPTR(FT_Load_Glyph);
  76 MAKE_FUNCPTR(FT_Matrix_Multiply);
  77 MAKE_FUNCPTR(FT_MulDiv);
  78 MAKE_FUNCPTR(FT_New_Memory_Face);
  79 MAKE_FUNCPTR(FT_New_Size);
  80 MAKE_FUNCPTR(FT_Outline_Copy);
  81 MAKE_FUNCPTR(FT_Outline_Decompose);
  82 MAKE_FUNCPTR(FT_Outline_Done);
  83 MAKE_FUNCPTR(FT_Outline_Embolden);
  84 MAKE_FUNCPTR(FT_Outline_Get_Bitmap);
  85 MAKE_FUNCPTR(FT_Outline_New);
  86 MAKE_FUNCPTR(FT_Outline_Transform);
  87 MAKE_FUNCPTR(FT_Outline_Translate);
  88 MAKE_FUNCPTR(FT_Set_Pixel_Sizes);
  89 #undef MAKE_FUNCPTR
  90 static FT_Error (*pFT_Outline_EmboldenXY)(FT_Outline *, FT_Pos, FT_Pos);
  91
  92 #define FaceFromObject(o) ((FT_Face)(ULONG_PTR)(o))
  93
  94 static FT_Size freetype_set_face_size(FT_Face face, FT_UInt emsize)
  95 {
  96     FT_Size size;
  97
  98     if (pFT_New_Size(face, &size)) return NULL;
  99
 100     pFT_Activate_Size(size);
 101
 102     if (pFT_Set_Pixel_Sizes(face, emsize, emsize))
 103     {
 104         pFT_Done_Size(size);
 105         return NULL;
 106     }
 107
 108     return size;
 109 }
 110
 111 static BOOL freetype_glyph_has_contours(FT_Face face)
 112 {
 113     return face->glyph->format == FT_GLYPH_FORMAT_OUTLINE && face->glyph->outline.n_contours;
 114 }
 115
 116 static NTSTATUS process_attach(void *args)
 117 {
 118     FT_Version_t FT_Version;
 119
 120     ft_handle = dlopen(SONAME_LIBFREETYPE, RTLD_NOW);
 121     if (!ft_handle)
 122     {
 123         WINE_MESSAGE("Wine cannot find the FreeType font library.\n");
 124         return STATUS_DLL_NOT_FOUND;
 125     }
 126
 127 #define LOAD_FUNCPTR(f) if((p##f = dlsym(ft_handle, #f)) == NULL){WARN("Can't find symbol %s\n", #f); goto sym_not_found;}
 128     LOAD_FUNCPTR(FT_Activate_Size)
 129     LOAD_FUNCPTR(FT_Done_Face)
 130     LOAD_FUNCPTR(FT_Done_FreeType)
 131     LOAD_FUNCPTR(FT_Done_Glyph)
 132     LOAD_FUNCPTR(FT_Done_Size)
 133     LOAD_FUNCPTR(FT_Get_First_Char)
 134     LOAD_FUNCPTR(FT_Get_Glyph)
 135     LOAD_FUNCPTR(FT_Get_Kerning)
 136     LOAD_FUNCPTR(FT_Get_Sfnt_Table)
 137     LOAD_FUNCPTR(FT_Glyph_Copy)
 138     LOAD_FUNCPTR(FT_Glyph_Get_CBox)
 139     LOAD_FUNCPTR(FT_Glyph_Transform)
 140     LOAD_FUNCPTR(FT_Init_FreeType)
 141     LOAD_FUNCPTR(FT_Library_Version)
 142     LOAD_FUNCPTR(FT_Load_Glyph)
 143     LOAD_FUNCPTR(FT_Matrix_Multiply)
 144     LOAD_FUNCPTR(FT_MulDiv)
 145     LOAD_FUNCPTR(FT_New_Memory_Face)
 146     LOAD_FUNCPTR(FT_New_Size)
 147     LOAD_FUNCPTR(FT_Outline_Copy)
 148     LOAD_FUNCPTR(FT_Outline_Decompose)
 149     LOAD_FUNCPTR(FT_Outline_Done)
 150     LOAD_FUNCPTR(FT_Outline_Embolden)
 151     LOAD_FUNCPTR(FT_Outline_Get_Bitmap)
 152     LOAD_FUNCPTR(FT_Outline_New)
 153     LOAD_FUNCPTR(FT_Outline_Transform)
 154     LOAD_FUNCPTR(FT_Outline_Translate)
 155     LOAD_FUNCPTR(FT_Set_Pixel_Sizes)
 156 #undef LOAD_FUNCPTR
 157     pFT_Outline_EmboldenXY = dlsym(ft_handle, "FT_Outline_EmboldenXY");
 158
 159     if (pFT_Init_FreeType(&library) != 0)
 160     {
 161         ERR("Can't init FreeType library\n");
 162         dlclose(ft_handle);
 163         ft_handle = NULL;
 164         return STATUS_UNSUCCESSFUL;
 165     }
 166     pFT_Library_Version(library, &FT_Version.major, &FT_Version.minor, &FT_Version.patch);
 167
 168     TRACE("FreeType version is %d.%d.%d\n", FT_Version.major, FT_Version.minor, FT_Version.patch);
 169     return STATUS_SUCCESS;
 170
 171 sym_not_found:
 172     WINE_MESSAGE("Wine cannot find certain functions that it needs from FreeType library.\n");
 173     dlclose(ft_handle);
 174     ft_handle = NULL;
 175     return STATUS_UNSUCCESSFUL;
 176 }
 177
 178 static NTSTATUS process_detach(void *args)
 179 {
 180     pFT_Done_FreeType(library);
 181     return STATUS_SUCCESS;
 182 }
 183
 184 static NTSTATUS create_font_object(void *args)
 185 {
 186     struct create_font_object_params *params = args;
 187     FT_Face face = NULL;
 188     FT_Error fterror;
 189
 190     fterror = pFT_New_Memory_Face(library, params->data, params->size, params->index, &face);
 191     if (fterror != FT_Err_Ok)
 192     {
 193         WARN("Failed to create a face object, error %d.\n", fterror);
 194         return STATUS_UNSUCCESSFUL;
 195     }
 196
 197     *params->object = (ULONG_PTR)face;
 198
 199     return STATUS_SUCCESS;
 200 }
 201
 202 static NTSTATUS release_font_object(void *args)
 203 {
 204     struct release_font_object_params *params = args;
 205     pFT_Done_Face(FaceFromObject(params->object));
 206     return STATUS_SUCCESS;
 207 }
 208
 209 static NTSTATUS get_design_glyph_metrics(void *args)
 210 {
 211     struct get_design_glyph_metrics_params *params = args;
 212     FT_Face face = FaceFromObject(params->object);
 213     FT_Size size;
 214
 215     if (!(size = freetype_set_face_size(face, params->upem)))
 216         return STATUS_UNSUCCESSFUL;
 217
 218     if (!pFT_Load_Glyph(face, params->glyph, FT_LOAD_NO_SCALE))
 219     {
 220         FT_Glyph_Metrics *metrics = &face->glyph->metrics;
 221
 222         params->metrics->leftSideBearing = metrics->horiBearingX;
 223         params->metrics->advanceWidth = metrics->horiAdvance;
 224         params->metrics->rightSideBearing = metrics->horiAdvance - metrics->horiBearingX - metrics->width;
 225
 226         params->metrics->advanceHeight = metrics->vertAdvance;
 227         params->metrics->verticalOriginY = params->ascent;
 228         params->metrics->topSideBearing = params->ascent - metrics->horiBearingY;
 229         params->metrics->bottomSideBearing = metrics->vertAdvance - metrics->height - params->metrics->topSideBearing;
 230
 231         /* Adjust in case of bold simulation, glyphs without contours are ignored. */
 232         if (params->simulations & DWRITE_FONT_SIMULATIONS_BOLD && freetype_glyph_has_contours(face))
 233         {
 234             if (params->metrics->advanceWidth)
 235                 params->metrics->advanceWidth += (params->upem + 49) / 50;
 236         }
 237     }
 238
 239     pFT_Done_Size(size);
 240
 241     return STATUS_SUCCESS;
 242 }
 243
 244 struct decompose_context
 245 {
 246     struct dwrite_outline *outline;
 247     BOOL figure_started;
 248     BOOL move_to;     /* last call was 'move_to' */
 249     FT_Vector origin; /* 'pen' position from last call */
 250 };
 251
 252 static inline void ft_vector_to_d2d_point(const FT_Vector *v, D2D1_POINT_2F *p)
 253 {
 254     p->x = v->x / 64.0f;
 255     p->y = v->y / 64.0f;
 256 }
 257
 258 static int dwrite_outline_push_tag(struct dwrite_outline *outline, unsigned char tag)
 259 {
 260     if (outline->tags.size < outline->tags.count + 1)
 261         return 1;
 262
 263     outline->tags.values[outline->tags.count++] = tag;
 264
 265     return 0;
 266 }
 267
 268 static int dwrite_outline_push_points(struct dwrite_outline *outline, const D2D1_POINT_2F *points, unsigned int count)
 269 {
 270     if (outline->points.size < outline->points.count + count)
 271         return 1;
 272
 273     memcpy(&outline->points.values[outline->points.count], points, sizeof(*points) * count);
 274     outline->points.count += count;
 275
 276     return 0;
 277 }
 278
 279 static int decompose_beginfigure(struct decompose_context *ctxt)
 280 {
 281     D2D1_POINT_2F point;
 282     int ret;
 283
 284     if (!ctxt->move_to)
 285         return 0;
 286
 287     ft_vector_to_d2d_point(&ctxt->origin, &point);
 288     if ((ret = dwrite_outline_push_tag(ctxt->outline, OUTLINE_BEGIN_FIGURE))) return ret;
 289     if ((ret = dwrite_outline_push_points(ctxt->outline, &point, 1))) return ret;
 290
 291     ctxt->figure_started = TRUE;
 292     ctxt->move_to = FALSE;
 293
 294     return 0;
 295 }
 296
 297 static int decompose_move_to(const FT_Vector *to, void *user)
 298 {
 299     struct decompose_context *ctxt = (struct decompose_context *)user;
 300     int ret;
 301
 302     if (ctxt->figure_started)
 303     {
 304         if ((ret = dwrite_outline_push_tag(ctxt->outline, OUTLINE_END_FIGURE))) return ret;
 305         ctxt->figure_started = FALSE;
 306     }
 307
 308     ctxt->move_to = TRUE;
 309     ctxt->origin = *to;
 310     return 0;
 311 }
 312
 313 static int decompose_line_to(const FT_Vector *to, void *user)
 314 {
 315     struct decompose_context *ctxt = (struct decompose_context *)user;
 316     D2D1_POINT_2F point;
 317     int ret;
 318
 319     /* Special case for empty contours, in a way freetype returns them. */
 320     if (ctxt->move_to && !memcmp(to, &ctxt->origin, sizeof(*to)))
 321         return 0;
 322
 323     ft_vector_to_d2d_point(to, &point);
 324
 325     if ((ret = decompose_beginfigure(ctxt))) return ret;
 326     if ((ret = dwrite_outline_push_points(ctxt->outline, &point, 1))) return ret;
 327     if ((ret = dwrite_outline_push_tag(ctxt->outline, OUTLINE_LINE))) return ret;
 328
 329     ctxt->origin = *to;
 330     return 0;
 331 }
 332
 333 static int decompose_conic_to(const FT_Vector *control, const FT_Vector *to, void *user)
 334 {
 335     struct decompose_context *ctxt = (struct decompose_context *)user;
 336     D2D1_POINT_2F points[3];
 337     FT_Vector cubic[3];
 338     int ret;
 339
 340     if ((ret = decompose_beginfigure(ctxt)))
 341         return ret;
 342
 343     /* convert from quadratic to cubic */
 344
 345     /*
 346        The parametric eqn for a cubic Bezier is, from PLRM:
 347        r(t) = at^3 + bt^2 + ct + r0
 348        with the control points:
 349        r1 = r0 + c/3
 350        r2 = r1 + (c + b)/3
 351        r3 = r0 + c + b + a
 352
 353        A quadratic Bezier has the form:
 354        p(t) = (1-t)^2 p0 + 2(1-t)t p1 + t^2 p2
 355
 356        So equating powers of t leads to:
 357        r1 = 2/3 p1 + 1/3 p0
 358        r2 = 2/3 p1 + 1/3 p2
 359        and of course r0 = p0, r3 = p2
 360     */
 361
 362     /* r1 = 1/3 p0 + 2/3 p1
 363        r2 = 1/3 p2 + 2/3 p1 */
 364     cubic[0].x = (2 * control->x + 1) / 3;
 365     cubic[0].y = (2 * control->y + 1) / 3;
 366     cubic[1] = cubic[0];
 367     cubic[0].x += (ctxt->origin.x + 1) / 3;
 368     cubic[0].y += (ctxt->origin.y + 1) / 3;
 369     cubic[1].x += (to->x + 1) / 3;
 370     cubic[1].y += (to->y + 1) / 3;
 371     cubic[2] = *to;
 372
 373     ft_vector_to_d2d_point(cubic, points);
 374     ft_vector_to_d2d_point(cubic + 1, points + 1);
 375     ft_vector_to_d2d_point(cubic + 2, points + 2);
 376     if ((ret = dwrite_outline_push_points(ctxt->outline, points, 3))) return ret;
 377     if ((ret = dwrite_outline_push_tag(ctxt->outline, OUTLINE_BEZIER))) return ret;
 378     ctxt->origin = *to;
 379     return 0;
 380 }
 381
 382 static int decompose_cubic_to(const FT_Vector *control1, const FT_Vector *control2,
 383     const FT_Vector *to, void *user)
 384 {
 385     struct decompose_context *ctxt = (struct decompose_context *)user;
 386     D2D1_POINT_2F points[3];
 387     int ret;
 388
 389     if ((ret = decompose_beginfigure(ctxt)))
 390         return ret;
 391
 392     ft_vector_to_d2d_point(control1, points);
 393     ft_vector_to_d2d_point(control2, points + 1);
 394     ft_vector_to_d2d_point(to, points + 2);
 395     ctxt->origin = *to;
 396
 397     if ((ret = dwrite_outline_push_points(ctxt->outline, points, 3))) return ret;
 398     if ((ret = dwrite_outline_push_tag(ctxt->outline, OUTLINE_BEZIER))) return ret;
 399
 400     return 0;
 401 }
 402
 403 static int decompose_outline(FT_Outline *ft_outline, struct dwrite_outline *outline)
 404 {
 405     static const FT_Outline_Funcs decompose_funcs =
 406     {
 407         decompose_move_to,
 408         decompose_line_to,
 409         decompose_conic_to,
 410         decompose_cubic_to,
 411         0,
 412         0
 413     };
 414     struct decompose_context context = { 0 };
 415     int ret;
 416
 417     context.outline = outline;
 418
 419     ret = pFT_Outline_Decompose(ft_outline, &decompose_funcs, &context);
 420
 421     if (!ret && context.figure_started)
 422         ret = dwrite_outline_push_tag(outline, OUTLINE_END_FIGURE);
 423
 424     return ret;
 425 }
 426
 427 static void embolden_glyph_outline(FT_Outline *outline, FLOAT emsize)
 428 {
 429     FT_Pos strength;
 430
 431     strength = pFT_MulDiv(emsize, 1 << 6, 24);
 432     if (pFT_Outline_EmboldenXY)
 433         pFT_Outline_EmboldenXY(outline, strength, 0);
 434     else
 435         pFT_Outline_Embolden(outline, strength);
 436 }
 437
 438 static void embolden_glyph(FT_Glyph glyph, FLOAT emsize)
 439 {
 440     FT_OutlineGlyph outline_glyph = (FT_OutlineGlyph)glyph;
 441
 442     if (glyph->format != FT_GLYPH_FORMAT_OUTLINE)
 443         return;
 444
 445     embolden_glyph_outline(&outline_glyph->outline, emsize);
 446 }
 447
 448 static NTSTATUS get_glyph_outline(void *args)
 449 {
 450     struct get_glyph_outline_params *params = args;
 451     FT_Face face = FaceFromObject(params->object);
 452     FT_Size size;
 453
 454     if (!(size = freetype_set_face_size(face, params->emsize)))
 455         return STATUS_UNSUCCESSFUL;
 456
 457     if (!pFT_Load_Glyph(face, params->glyph, FT_LOAD_NO_BITMAP))
 458     {
 459         FT_Outline *ft_outline = &face->glyph->outline;
 460         FT_Matrix m;
 461
 462         if (params->outline->points.values)
 463         {
 464             if (params->simulations & DWRITE_FONT_SIMULATIONS_BOLD)
 465                 embolden_glyph_outline(ft_outline, params->emsize);
 466
 467             m.xx = 1 << 16;
 468             m.xy = params->simulations & DWRITE_FONT_SIMULATIONS_OBLIQUE ? (1 << 16) / 3 : 0;
 469             m.yx = 0;
 470             m.yy = -(1 << 16); /* flip Y axis */
 471
 472             pFT_Outline_Transform(ft_outline, &m);
 473
 474             decompose_outline(ft_outline, params->outline);
 475         }
 476         else
 477         {
 478             /* Intentionally overestimate numbers to keep it simple. */
 479             params->outline->points.count = ft_outline->n_points * 3;
 480             params->outline->tags.count = ft_outline->n_points + ft_outline->n_contours * 2;
 481         }
 482     }
 483
 484     pFT_Done_Size(size);
 485
 486     return STATUS_SUCCESS;
 487 }
 488
 489 static NTSTATUS get_glyph_count(void *args)
 490 {
 491     struct get_glyph_count_params *params = args;
 492     FT_Face face = FaceFromObject(params->object);
 493
 494     *params->count = face ? face->num_glyphs : 0;
 495
 496     return STATUS_SUCCESS;
 497 }
 498
 499 static inline void ft_matrix_from_matrix_2x2(const MATRIX_2X2 *m, FT_Matrix *ft_matrix)
 500 {
 501     ft_matrix->xx =  m->m11 * 0x10000;
 502     ft_matrix->xy = -m->m21 * 0x10000;
 503     ft_matrix->yx = -m->m12 * 0x10000;
 504     ft_matrix->yy =  m->m22 * 0x10000;
 505 }
 506
 507 static BOOL get_glyph_transform(unsigned int simulations, const MATRIX_2X2 *m, FT_Matrix *ret)
 508 {
 509     FT_Matrix ftm;
 510
 511     ret->xx = 1 << 16;
 512     ret->xy = 0;
 513     ret->yx = 0;
 514     ret->yy = 1 << 16;
 515
 516     /* Some fonts provide mostly bitmaps and very few outlines, for example for .notdef.
 517        Disable transform if that's the case. */
 518     if (!memcmp(m, &identity_2x2, sizeof(*m)) && !simulations)
 519         return FALSE;
 520
 521     if (simulations & DWRITE_FONT_SIMULATIONS_OBLIQUE)
 522     {
 523         ftm.xx =  1 << 16;
 524         ftm.xy = (1 << 16) / 3;
 525         ftm.yx =  0;
 526         ftm.yy =  1 << 16;
 527         pFT_Matrix_Multiply(&ftm, ret);
 528     }
 529
 530     ft_matrix_from_matrix_2x2(m, &ftm);
 531     pFT_Matrix_Multiply(&ftm, ret);
 532
 533     return TRUE;
 534 }
 535
 536 static NTSTATUS get_glyph_bbox(void *args)
 537 {
 538     struct get_glyph_bbox_params *params = args;
 539     FT_Face face = FaceFromObject(params->object);
 540     FT_Glyph glyph = NULL;
 541     FT_BBox bbox = { 0 };
 542     BOOL needs_transform;
 543     FT_Matrix m;
 544     FT_Size size;
 545
 546     SetRectEmpty(params->bbox);
 547
 548     if (!(size = freetype_set_face_size(face, params->emsize)))
 549         return STATUS_UNSUCCESSFUL;
 550
 551     needs_transform = FT_IS_SCALABLE(face) && get_glyph_transform(params->simulations, &params->m, &m);
 552
 553     if (pFT_Load_Glyph(face, params->glyph, needs_transform ? FT_LOAD_NO_BITMAP : 0))
 554     {
 555         WARN("Failed to load glyph %u.\n", params->glyph);
 556         pFT_Done_Size(size);
 557         return STATUS_UNSUCCESSFUL;
 558     }
 559
 560     pFT_Get_Glyph(face->glyph, &glyph);
 561     if (needs_transform)
 562     {
 563         if (params->simulations & DWRITE_FONT_SIMULATIONS_BOLD)
 564             embolden_glyph(glyph, params->emsize);
 565
 566         /* Includes oblique and user transform. */
 567         pFT_Glyph_Transform(glyph, &m, NULL);
 568     }
 569
 570     pFT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_PIXELS, &bbox);
 571     pFT_Done_Glyph(glyph);
 572     pFT_Done_Size(size);
 573
 574     /* flip Y axis */
 575     SetRect(params->bbox, bbox.xMin, -bbox.yMax, bbox.xMax, -bbox.yMin);
 576
 577     return STATUS_SUCCESS;
 578 }
 579
 580 static NTSTATUS freetype_get_aliased_glyph_bitmap(struct get_glyph_bitmap_params *params, FT_Glyph glyph)
 581 {
 582     const RECT *bbox = &params->bbox;
 583     int width = bbox->right - bbox->left;
 584     int height = bbox->bottom - bbox->top;
 585
 586     *params->is_1bpp = 1;
 587
 588     if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
 589         FT_OutlineGlyph outline = (FT_OutlineGlyph)glyph;
 590         const FT_Outline *src = &outline->outline;
 591         FT_Bitmap ft_bitmap;
 592         FT_Outline copy;
 593
 594         ft_bitmap.width = width;
 595         ft_bitmap.rows = height;
 596         ft_bitmap.pitch = params->pitch;
 597         ft_bitmap.pixel_mode = FT_PIXEL_MODE_MONO;
 598         ft_bitmap.buffer = params->bitmap;
 599
 600         /* Note: FreeType will only set 'black' bits for us. */
 601         if (pFT_Outline_New(library, src->n_points, src->n_contours, &copy) == 0) {
 602             pFT_Outline_Copy(src, &copy);
 603             pFT_Outline_Translate(&copy, -bbox->left << 6, bbox->bottom << 6);
 604             pFT_Outline_Get_Bitmap(library, &copy, &ft_bitmap);
 605             pFT_Outline_Done(library, &copy);
 606         }
 607     }
 608     else if (glyph->format == FT_GLYPH_FORMAT_BITMAP) {
 609         FT_Bitmap *ft_bitmap = &((FT_BitmapGlyph)glyph)->bitmap;
 610         BYTE *src = ft_bitmap->buffer, *dst = params->bitmap;
 611         int w = min(params->pitch, (ft_bitmap->width + 7) >> 3);
 612         int h = min(height, ft_bitmap->rows);
 613
 614         while (h--) {
 615             memcpy(dst, src, w);
 616             src += ft_bitmap->pitch;
 617             dst += params->pitch;
 618         }
 619     }
 620     else
 621         FIXME("format %x not handled\n", glyph->format);
 622
 623     return STATUS_SUCCESS;
 624 }
 625
 626 static NTSTATUS freetype_get_aa_glyph_bitmap(struct get_glyph_bitmap_params *params, FT_Glyph glyph)
 627 {
 628     const RECT *bbox = &params->bbox;
 629     int width = bbox->right - bbox->left;
 630     int height = bbox->bottom - bbox->top;
 631
 632     *params->is_1bpp = 0;
 633
 634     if (glyph->format == FT_GLYPH_FORMAT_OUTLINE) {
 635         FT_OutlineGlyph outline = (FT_OutlineGlyph)glyph;
 636         const FT_Outline *src = &outline->outline;
 637         FT_Bitmap ft_bitmap;
 638         FT_Outline copy;
 639
 640         ft_bitmap.width = width;
 641         ft_bitmap.rows = height;
 642         ft_bitmap.pitch = params->pitch;
 643         ft_bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
 644         ft_bitmap.buffer = params->bitmap;
 645
 646         /* Note: FreeType will only set 'black' bits for us. */
 647         if (pFT_Outline_New(library, src->n_points, src->n_contours, &copy) == 0) {
 648             pFT_Outline_Copy(src, &copy);
 649             pFT_Outline_Translate(&copy, -bbox->left << 6, bbox->bottom << 6);
 650             pFT_Outline_Get_Bitmap(library, &copy, &ft_bitmap);
 651             pFT_Outline_Done(library, &copy);
 652         }
 653     }
 654     else if (glyph->format == FT_GLYPH_FORMAT_BITMAP) {
 655         FT_Bitmap *ft_bitmap = &((FT_BitmapGlyph)glyph)->bitmap;
 656         BYTE *src = ft_bitmap->buffer, *dst = params->bitmap;
 657         int w = min(params->pitch, (ft_bitmap->width + 7) >> 3);
 658         int h = min(height, ft_bitmap->rows);
 659
 660         while (h--) {
 661             memcpy(dst, src, w);
 662             src += ft_bitmap->pitch;
 663             dst += params->pitch;
 664         }
 665
 666         *params->is_1bpp = 1;
 667     }
 668     else
 669     {
 670         FIXME("format %x not handled\n", glyph->format);
 671         return STATUS_NOT_IMPLEMENTED;
 672     }
 673
 674     return STATUS_SUCCESS;
 675 }
 676
 677 static NTSTATUS get_glyph_bitmap(void *args)
 678 {
 679     struct get_glyph_bitmap_params *params = args;
 680     FT_Face face = FaceFromObject(params->object);
 681     BOOL needs_transform;
 682     BOOL ret = FALSE;
 683     FT_Glyph glyph;
 684     FT_Size size;
 685     FT_Matrix m;
 686
 687     *params->is_1bpp = 0;
 688
 689     if (!(size = freetype_set_face_size(face, params->emsize)))
 690         return STATUS_UNSUCCESSFUL;
 691
 692     needs_transform = FT_IS_SCALABLE(face) && get_glyph_transform(params->simulations, &params->m, &m);
 693
 694     if (!pFT_Load_Glyph(face, params->glyph, needs_transform ? FT_LOAD_NO_BITMAP : 0))
 695     {
 696         pFT_Get_Glyph(face->glyph, &glyph);
 697
 698         if (needs_transform)
 699         {
 700             if (params->simulations & DWRITE_FONT_SIMULATIONS_BOLD)
 701                 embolden_glyph(glyph, params->emsize);
 702
 703             /* Includes oblique and user transform. */
 704             pFT_Glyph_Transform(glyph, &m, NULL);
 705         }
 706
 707         if (params->mode == DWRITE_RENDERING_MODE1_ALIASED)
 708             ret = freetype_get_aliased_glyph_bitmap(params, glyph);
 709         else
 710             ret = freetype_get_aa_glyph_bitmap(params, glyph);
 711
 712         pFT_Done_Glyph(glyph);
 713     }
 714
 715     pFT_Done_Size(size);
 716
 717     return ret;
 718 }
 719
 720 static NTSTATUS get_glyph_advance(void *args)
 721 {
 722     struct get_glyph_advance_params *params = args;
 723     FT_Face face = FaceFromObject(params->object);
 724     FT_Size size;
 725
 726     *params->advance = 0;
 727     *params->has_contours = FALSE;
 728
 729     if (!(size = freetype_set_face_size(face, params->emsize)))
 730         return STATUS_UNSUCCESSFUL;
 731
 732     if (!pFT_Load_Glyph(face, params->glyph, params->mode == DWRITE_MEASURING_MODE_NATURAL ? FT_LOAD_NO_HINTING : 0))
 733     {
 734         *params->advance = face->glyph->advance.x >> 6;
 735         *params->has_contours = freetype_glyph_has_contours(face);
 736     }
 737
 738     pFT_Done_Size(size);
 739
 740     return STATUS_SUCCESS;
 741 }
 742
 743 #else /* HAVE_FREETYPE */
 744
 745 static NTSTATUS process_attach(void *args)
 746 {
 747     return STATUS_NOT_IMPLEMENTED;
 748 }
 749
 750 static NTSTATUS process_detach(void *args)
 751 {
 752     return STATUS_NOT_IMPLEMENTED;
 753 }
 754
 755 static NTSTATUS create_font_object(void *args)
 756 {
 757     return STATUS_NOT_IMPLEMENTED;
 758 }
 759
 760 static NTSTATUS release_font_object(void *args)
 761 {
 762     return STATUS_NOT_IMPLEMENTED;
 763 }
 764
 765 static NTSTATUS get_glyph_outline(void *args)
 766 {
 767     return STATUS_NOT_IMPLEMENTED;
 768 }
 769
 770 static NTSTATUS get_glyph_count(void *args)
 771 {
 772     return STATUS_NOT_IMPLEMENTED;
 773 }
 774
 775 static NTSTATUS get_glyph_advance(void *args)
 776 {
 777     struct get_glyph_advance_params *params = args;
 778
 779     *params->has_contours = 0;
 780     *params->advance = 0;
 781
 782     return STATUS_NOT_IMPLEMENTED;
 783 }
 784
 785 static NTSTATUS get_glyph_bbox(void *args)
 786 {
 787     struct get_glyph_bbox_params *params = args;
 788     SetRectEmpty(params->bbox);
 789     return STATUS_NOT_IMPLEMENTED;
 790 }
 791
 792 static NTSTATUS get_glyph_bitmap(void *args)
 793 {
 794     return STATUS_NOT_IMPLEMENTED;
 795 }
 796
 797 static NTSTATUS get_design_glyph_metrics(void *args)
 798 {
 799     return STATUS_NOT_IMPLEMENTED;
 800 }
 801
 802 #endif /* HAVE_FREETYPE */
 803
 804 const unixlib_entry_t __wine_unix_call_funcs[] =
 805 {
 806     process_attach,
 807     process_detach,
 808     create_font_object,
 809     release_font_object,
 810     get_glyph_outline,
 811     get_glyph_count,
 812     get_glyph_advance,
 813     get_glyph_bbox,
 814     get_glyph_bitmap,
 815     get_design_glyph_metrics,
 816 };
 817
 818 #ifdef _WIN64
 819
 820 typedef ULONG PTR32;
 821
 822 static NTSTATUS wow64_create_font_object(void *args)
 823 {
 824     struct
 825     {
 826         PTR32 data;
 827         UINT64 size;
 828         ULONG index;
 829         PTR32 object;
 830     } const *params32 = args;
 831     struct create_font_object_params params =
 832     {
 833         ULongToPtr(params32->data),
 834         params32->size,
 835         params32->index,
 836         ULongToPtr(params32->object),
 837     };
 838
 839     return create_font_object(&params);
 840 }
 841
 842 static NTSTATUS wow64_release_font_object(void *args)
 843 {
 844     struct
 845     {
 846         UINT64 object;
 847     } const *params32 = args;
 848     struct release_font_object_params params =
 849     {
 850         params32->object
 851     };
 852
 853     return release_font_object(&params);
 854 }
 855
 856 struct dwrite_outline32
 857 {
 858     struct
 859     {
 860         PTR32 values;
 861         ULONG count;
 862         ULONG size;
 863     } tags;
 864
 865     struct
 866     {
 867         PTR32 values;
 868         ULONG count;
 869         ULONG size;
 870     } points;
 871 };
 872
 873 static NTSTATUS wow64_get_glyph_outline(void *args)
 874 {
 875     struct
 876     {
 877         UINT64 object;
 878         ULONG simulations;
 879         ULONG glyph;
 880         float emsize;
 881         PTR32 outline;
 882     } const *params32 = args;
 883     struct dwrite_outline32 *outline32 = ULongToPtr(params32->outline);
 884     struct dwrite_outline outline =
 885     {
 886         .tags.values = ULongToPtr(outline32->tags.values),
 887         .tags.count = outline32->tags.count,
 888         .tags.size = outline32->tags.size,
 889         .points.values = ULongToPtr(outline32->points.values),
 890         .points.count = outline32->points.count,
 891         .points.size = outline32->points.size,
 892     };
 893
 894     struct get_glyph_outline_params params =
 895     {
 896         params32->object,
 897         params32->simulations,
 898         params32->glyph,
 899         params32->emsize,
 900         &outline,
 901     };
 902     NTSTATUS status;
 903
 904     status = get_glyph_outline(&params);
 905     outline32->points.count = outline.points.count;
 906     outline32->tags.count = outline.tags.count;
 907     return status;
 908 }
 909
 910 static NTSTATUS wow64_get_glyph_count(void *args)
 911 {
 912     struct
 913     {
 914         UINT64 object;
 915         PTR32 count;
 916     } const *params32 = args;
 917     struct get_glyph_count_params params =
 918     {
 919         params32->object,
 920         ULongToPtr(params32->count),
 921     };
 922
 923     return get_glyph_count(&params);
 924 }
 925
 926 static NTSTATUS wow64_get_glyph_advance(void *args)
 927 {
 928     struct
 929     {
 930         UINT64 object;
 931         ULONG glyph;
 932         ULONG mode;
 933         float emsize;
 934         PTR32 advance;
 935         PTR32 has_contours;
 936     } const *params32 = args;
 937     struct get_glyph_advance_params params =
 938     {
 939         params32->object,
 940         params32->glyph,
 941         params32->mode,
 942         params32->emsize,
 943         ULongToPtr(params32->advance),
 944         ULongToPtr(params32->has_contours),
 945     };
 946
 947     return get_glyph_advance(&params);
 948 }
 949
 950 static NTSTATUS wow64_get_glyph_bbox(void *args)
 951 {
 952     struct
 953     {
 954         UINT64 object;
 955         ULONG simulations;
 956         ULONG glyph;
 957         float emsize;
 958         MATRIX_2X2 m;
 959         PTR32 bbox;
 960     } const *params32 = args;
 961     struct get_glyph_bbox_params params =
 962     {
 963         params32->object,
 964         params32->simulations,
 965         params32->glyph,
 966         params32->emsize,
 967         params32->m,
 968         ULongToPtr(params32->bbox),
 969     };
 970
 971     return get_glyph_bbox(&params);
 972 }
 973
 974 static NTSTATUS wow64_get_glyph_bitmap(void *args)
 975 {
 976     struct
 977     {
 978         UINT64 object;
 979         ULONG simulations;
 980         ULONG glyph;
 981         ULONG mode;
 982         float emsize;
 983         MATRIX_2X2 m;
 984         RECT bbox;
 985         int pitch;
 986         PTR32 bitmap;
 987         PTR32 is_1bpp;
 988     } const *params32 = args;
 989     struct get_glyph_bitmap_params params =
 990     {
 991         params32->object,
 992         params32->simulations,
 993         params32->glyph,
 994         params32->mode,
 995         params32->emsize,
 996         params32->m,
 997         params32->bbox,
 998         params32->pitch,
 999         ULongToPtr(params32->bitmap),
1000         ULongToPtr(params32->is_1bpp),
1001     };
1002
1003     return get_glyph_bitmap(&params);
1004 }
1005
1006 static NTSTATUS wow64_get_design_glyph_metrics(void *args)
1007 {
1008     struct
1009     {
1010         UINT64 object;
1011         ULONG simulations;
1012         ULONG glyph;
1013         ULONG upem;
1014         ULONG ascent;
1015         PTR32 metrics;
1016     } const *params32 = args;
1017     struct get_design_glyph_metrics_params params =
1018     {
1019         params32->object,
1020         params32->simulations,
1021         params32->glyph,
1022         params32->upem,
1023         params32->ascent,
1024         ULongToPtr(params32->metrics),
1025     };
1026
1027     return get_design_glyph_metrics(&params);
1028 };
1029
1030 const unixlib_entry_t __wine_unix_call_wow64_funcs[] =
1031 {
1032     process_attach,
1033     process_detach,
1034     wow64_create_font_object,
1035     wow64_release_font_object,
1036     wow64_get_glyph_outline,
1037     wow64_get_glyph_count,
1038     wow64_get_glyph_advance,
1039     wow64_get_glyph_bbox,
1040     wow64_get_glyph_bitmap,
1041     wow64_get_design_glyph_metrics,
1042 };
1043
1044 #endif  /* _WIN64 */