dlls/dwrite/dwrite_private.h

   1 /*
   2  * Copyright 2012 Nikolay Sivov 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 #ifndef __WINE_DWRITE_PRIVATE_H
  20 #define __WINE_DWRITE_PRIVATE_H
  21
  22 #include "dwrite_3.h"
  23 #include "d2d1.h"
  24 #include "winternl.h"
  25
  26 #include "wine/debug.h"
  27 #include "wine/list.h"
  28 #include "wine/rbtree.h"
  29
  30 #define MS_GSUB_TAG DWRITE_MAKE_OPENTYPE_TAG('G','S','U','B')
  31 #define MS_GPOS_TAG DWRITE_MAKE_OPENTYPE_TAG('G','P','O','S')
  32
  33 typedef struct MATRIX_2X2
  34 {
  35     float m11;
  36     float m12;
  37     float m21;
  38     float m22;
  39 } MATRIX_2X2;
  40
  41 static const DWRITE_MATRIX identity =
  42 {
  43     1.0f, 0.0f,
  44     0.0f, 1.0f,
  45     0.0f, 0.0f
  46 };
  47
  48 static const MATRIX_2X2 identity_2x2 =
  49 {
  50     1.0f, 0.0f,
  51     0.0f, 1.0f,
  52 };
  53
  54 static inline LPWSTR heap_strdupnW(const WCHAR *str, UINT32 len)
  55 {
  56     WCHAR *ret = NULL;
  57
  58     if (len)
  59     {
  60         ret = malloc((len+1)*sizeof(WCHAR));
  61         if(ret)
  62         {
  63             memcpy(ret, str, len*sizeof(WCHAR));
  64             ret[len] = 0;
  65         }
  66     }
  67
  68     return ret;
  69 }
  70
  71 static inline const char *debugstr_range(const DWRITE_TEXT_RANGE *range)
  72 {
  73     return wine_dbg_sprintf("%u:%u", range->startPosition, range->length);
  74 }
  75
  76 static inline const char *debugstr_matrix(const DWRITE_MATRIX *m)
  77 {
  78     if (!m) return "(null)";
  79     return wine_dbg_sprintf("{%.2f,%.2f,%.2f,%.2f,%.2f,%.2f}", m->m11, m->m12, m->m21, m->m22,
  80         m->dx, m->dy);
  81 }
  82
  83 static inline BOOL dwrite_array_reserve(void **elements, size_t *capacity, size_t count, size_t size)
  84 {
  85     size_t new_capacity, max_capacity;
  86     void *new_elements;
  87
  88     if (count <= *capacity)
  89         return TRUE;
  90
  91     max_capacity = ~(SIZE_T)0 / size;
  92     if (count > max_capacity)
  93         return FALSE;
  94
  95     new_capacity = max(4, *capacity);
  96     while (new_capacity < count && new_capacity <= max_capacity / 2)
  97         new_capacity *= 2;
  98     if (new_capacity < count)
  99         new_capacity = max_capacity;
 100
 101     new_elements = realloc(*elements, new_capacity * size);
 102     if (!new_elements)
 103         return FALSE;
 104
 105     *elements = new_elements;
 106     *capacity = new_capacity;
 107
 108     return TRUE;
 109 }
 110
 111 static inline const char *debugstr_tag(DWORD tag)
 112 {
 113     return debugstr_an((char *)&tag, 4);
 114 }
 115
 116 const char *debugstr_sa_script(UINT16) DECLSPEC_HIDDEN;
 117
 118 static inline unsigned short get_table_entry_16(const unsigned short *table, WCHAR ch)
 119 {
 120     return table[table[table[ch >> 8] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
 121 }
 122
 123 static inline unsigned short get_table_entry_32(const unsigned short *table, UINT ch)
 124 {
 125     return table[table[table[table[ch >> 12] + ((ch >> 8) & 0x0f)] + ((ch >> 4) & 0x0f)] + (ch & 0xf)];
 126 }
 127
 128 static inline BOOL is_simulation_valid(DWRITE_FONT_SIMULATIONS simulations)
 129 {
 130     return (simulations & ~(DWRITE_FONT_SIMULATIONS_NONE | DWRITE_FONT_SIMULATIONS_BOLD |
 131         DWRITE_FONT_SIMULATIONS_OBLIQUE)) == 0;
 132 }
 133
 134 struct textlayout_desc
 135 {
 136     IDWriteFactory7 *factory;
 137     const WCHAR *string;
 138     UINT32 length;
 139     IDWriteTextFormat *format;
 140     FLOAT max_width;
 141     FLOAT max_height;
 142     BOOL is_gdi_compatible;
 143     /* fields below are only meaningful for gdi-compatible layout */
 144     FLOAT ppdip;
 145     const DWRITE_MATRIX *transform;
 146     BOOL use_gdi_natural;
 147 };
 148
 149 struct glyphrunanalysis_desc
 150 {
 151     const DWRITE_GLYPH_RUN *run;
 152     const DWRITE_MATRIX *transform;
 153     DWRITE_RENDERING_MODE1 rendering_mode;
 154     DWRITE_MEASURING_MODE measuring_mode;
 155     DWRITE_GRID_FIT_MODE gridfit_mode;
 156     DWRITE_TEXT_ANTIALIAS_MODE aa_mode;
 157     D2D_POINT_2F origin;
 158 };
 159
 160 struct fontface_desc
 161 {
 162     IDWriteFactory7 *factory;
 163     DWRITE_FONT_FACE_TYPE face_type;
 164     IDWriteFontFile *file;
 165     IDWriteFontFileStream *stream;
 166     UINT32 index;
 167     DWRITE_FONT_SIMULATIONS simulations;
 168     struct dwrite_font_data *font_data; /* could be NULL when face is created directly with IDWriteFactory::CreateFontFace() */
 169 };
 170
 171 struct dwrite_fonttable
 172 {
 173     const BYTE *data;
 174     void *context;
 175     UINT32 size;
 176     BOOL exists;
 177 };
 178
 179 struct fontfacecached
 180 {
 181     struct list entry;
 182     IDWriteFontFace5 *fontface;
 183 };
 184
 185 #define GLYPH_BLOCK_SHIFT 8
 186 #define GLYPH_BLOCK_SIZE  (1UL << GLYPH_BLOCK_SHIFT)
 187 #define GLYPH_BLOCK_MASK  (GLYPH_BLOCK_SIZE - 1)
 188 #define GLYPH_MAX         65536
 189
 190 enum font_flags
 191 {
 192     FONT_IS_SYMBOL                = 0x00000001,
 193     FONT_IS_MONOSPACED            = 0x00000002,
 194     FONT_IS_COLORED               = 0x00000004, /* CPAL/COLR support */
 195     FONTFACE_KERNING_PAIRS        = 0x00000008,
 196     FONTFACE_NO_KERNING_PAIRS     = 0x00000010,
 197     FONTFACE_VERTICAL_VARIANTS    = 0x00000020,
 198     FONTFACE_NO_VERTICAL_VARIANTS = 0x00000040,
 199 };
 200
 201 struct dwrite_cmap;
 202
 203 typedef UINT16 (*p_cmap_get_glyph_func)(const struct dwrite_cmap *cmap, unsigned int ch);
 204 typedef unsigned int (*p_cmap_get_ranges_func)(const struct dwrite_cmap *cmap, unsigned int max_count,
 205     DWRITE_UNICODE_RANGE *ranges);
 206
 207 struct dwrite_cmap
 208 {
 209     const void *data;
 210     union
 211     {
 212         struct
 213         {
 214             unsigned int seg_count;
 215             unsigned int glyph_id_array_len;
 216
 217             const UINT16 *ends;
 218             const UINT16 *starts;
 219             const UINT16 *id_delta;
 220             const UINT16 *id_range_offset;
 221             const UINT16 *glyph_id_array;
 222         } format4;
 223         struct
 224         {
 225             unsigned int first;
 226             unsigned int last;
 227         } format6_10;
 228         struct
 229         {
 230             unsigned int group_count;
 231         } format12_13;
 232     } u;
 233     p_cmap_get_glyph_func get_glyph;
 234     p_cmap_get_ranges_func get_ranges;
 235     unsigned short symbol : 1;
 236     IDWriteFontFileStream *stream;
 237     void *table_context;
 238 };
 239
 240 extern void dwrite_cmap_init(struct dwrite_cmap *cmap, IDWriteFontFile *file, unsigned int face_index,
 241         DWRITE_FONT_FACE_TYPE face_type) DECLSPEC_HIDDEN;
 242 extern void dwrite_cmap_release(struct dwrite_cmap *cmap) DECLSPEC_HIDDEN;
 243 extern UINT16 opentype_cmap_get_glyph(const struct dwrite_cmap *cmap, unsigned int ch) DECLSPEC_HIDDEN;
 244 extern HRESULT opentype_cmap_get_unicode_ranges(const struct dwrite_cmap *cmap, unsigned int max_count,
 245         DWRITE_UNICODE_RANGE *ranges, unsigned int *count) DECLSPEC_HIDDEN;
 246
 247 struct dwrite_fontface;
 248 typedef UINT64 (*p_dwrite_fontface_get_font_object)(struct dwrite_fontface *fontface);
 249
 250 struct dwrite_fontface
 251 {
 252     IDWriteFontFace5 IDWriteFontFace5_iface;
 253     IDWriteFontFaceReference IDWriteFontFaceReference_iface;
 254     LONG refcount;
 255
 256     IDWriteFontFileStream *stream;
 257     IDWriteFontFile *file;
 258     UINT32 index;
 259
 260     IDWriteFactory7 *factory;
 261     struct fontfacecached *cached;
 262     UINT64 font_object;
 263     void *data_context;
 264     p_dwrite_fontface_get_font_object get_font_object;
 265     struct
 266     {
 267         struct wine_rb_tree tree;
 268         struct list mru;
 269         size_t max_size;
 270         size_t size;
 271     } cache;
 272     CRITICAL_SECTION cs;
 273
 274     USHORT simulations;
 275     DWRITE_FONT_FACE_TYPE type;
 276     DWRITE_FONT_METRICS1 metrics;
 277     DWRITE_CARET_METRICS caret;
 278     struct
 279     {
 280         unsigned int ascent;
 281         unsigned int descent;
 282     } typo_metrics;
 283     unsigned int flags;
 284
 285     struct dwrite_cmap cmap;
 286
 287     struct dwrite_fonttable vdmx;
 288     struct dwrite_fonttable gasp;
 289     struct dwrite_fonttable cpal;
 290     struct dwrite_fonttable colr;
 291     struct dwrite_fonttable kern;
 292     DWRITE_GLYPH_METRICS *glyphs[GLYPH_MAX/GLYPH_BLOCK_SIZE];
 293
 294     DWRITE_FONT_STYLE style;
 295     DWRITE_FONT_STRETCH stretch;
 296     DWRITE_FONT_WEIGHT weight;
 297     DWRITE_PANOSE panose;
 298     FONTSIGNATURE fontsig;
 299     UINT32 glyph_image_formats;
 300
 301     IDWriteLocalizedStrings *info_strings[DWRITE_INFORMATIONAL_STRING_SUPPORTED_SCRIPT_LANGUAGE_TAG + 1];
 302     IDWriteLocalizedStrings *family_names;
 303     IDWriteLocalizedStrings *names;
 304
 305     struct scriptshaping_cache *shaping_cache;
 306
 307     LOGFONTW lf;
 308 };
 309
 310 extern HRESULT create_numbersubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD,const WCHAR *locale,BOOL,IDWriteNumberSubstitution**) DECLSPEC_HIDDEN;
 311 extern HRESULT create_text_format(const WCHAR *family_name, IDWriteFontCollection *collection, DWRITE_FONT_WEIGHT weight,
 312         DWRITE_FONT_STYLE style, DWRITE_FONT_STRETCH stretch, float size, const WCHAR *locale, REFIID riid,
 313         void **out) DECLSPEC_HIDDEN;
 314 extern HRESULT create_textlayout(const struct textlayout_desc*,IDWriteTextLayout**) DECLSPEC_HIDDEN;
 315 extern HRESULT create_trimmingsign(IDWriteFactory7 *factory, IDWriteTextFormat *format,
 316         IDWriteInlineObject **sign) DECLSPEC_HIDDEN;
 317 extern HRESULT create_typography(IDWriteTypography**) DECLSPEC_HIDDEN;
 318 extern HRESULT create_localizedstrings(IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
 319 extern HRESULT add_localizedstring(IDWriteLocalizedStrings*,const WCHAR*,const WCHAR*) DECLSPEC_HIDDEN;
 320 extern HRESULT clone_localizedstrings(IDWriteLocalizedStrings *iface, IDWriteLocalizedStrings **strings) DECLSPEC_HIDDEN;
 321 extern void    set_en_localizedstring(IDWriteLocalizedStrings*,const WCHAR*) DECLSPEC_HIDDEN;
 322 extern void    sort_localizedstrings(IDWriteLocalizedStrings*) DECLSPEC_HIDDEN;
 323 extern unsigned int get_localizedstrings_count(IDWriteLocalizedStrings *strings) DECLSPEC_HIDDEN;
 324 extern BOOL localizedstrings_contains(IDWriteLocalizedStrings *strings, const WCHAR *str) DECLSPEC_HIDDEN;
 325 extern HRESULT get_system_fontcollection(IDWriteFactory7 *factory, DWRITE_FONT_FAMILY_MODEL family_model,
 326         IDWriteFontCollection **collection) DECLSPEC_HIDDEN;
 327 extern HRESULT get_eudc_fontcollection(IDWriteFactory7 *factory, IDWriteFontCollection3 **collection) DECLSPEC_HIDDEN;
 328 extern IDWriteTextAnalyzer2 *get_text_analyzer(void) DECLSPEC_HIDDEN;
 329 extern HRESULT create_font_file(IDWriteFontFileLoader *loader, const void *reference_key, UINT32 key_size, IDWriteFontFile **font_file) DECLSPEC_HIDDEN;
 330 extern void    init_local_fontfile_loader(void) DECLSPEC_HIDDEN;
 331 extern IDWriteFontFileLoader *get_local_fontfile_loader(void) DECLSPEC_HIDDEN;
 332 extern HRESULT create_fontface(const struct fontface_desc *desc, struct list *cached_list,
 333         IDWriteFontFace5 **fontface) DECLSPEC_HIDDEN;
 334 extern HRESULT create_font_collection(IDWriteFactory7 *factory, IDWriteFontFileEnumerator *enumerator, BOOL is_system,
 335        IDWriteFontCollection3 **collection) DECLSPEC_HIDDEN;
 336 extern HRESULT create_glyphrunanalysis(const struct glyphrunanalysis_desc*,IDWriteGlyphRunAnalysis**) DECLSPEC_HIDDEN;
 337 extern BOOL    is_system_collection(IDWriteFontCollection*) DECLSPEC_HIDDEN;
 338 extern HRESULT get_local_refkey(const WCHAR*,const FILETIME*,void**,UINT32*) DECLSPEC_HIDDEN;
 339 extern HRESULT get_filestream_from_file(IDWriteFontFile*,IDWriteFontFileStream**) DECLSPEC_HIDDEN;
 340 extern BOOL    is_face_type_supported(DWRITE_FONT_FACE_TYPE) DECLSPEC_HIDDEN;
 341 extern HRESULT get_family_names_from_stream(IDWriteFontFileStream*,UINT32,DWRITE_FONT_FACE_TYPE,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
 342 extern HRESULT create_colorglyphenum(D2D1_POINT_2F origin, const DWRITE_GLYPH_RUN *run, const DWRITE_GLYPH_RUN_DESCRIPTION *desc,
 343         DWRITE_GLYPH_IMAGE_FORMATS formats, DWRITE_MEASURING_MODE mode, const DWRITE_MATRIX *transform, UINT32 palette,
 344         IDWriteColorGlyphRunEnumerator1 **enumerator) DECLSPEC_HIDDEN;
 345 extern BOOL lb_is_newline_char(WCHAR) DECLSPEC_HIDDEN;
 346 extern HRESULT create_system_fontfallback(IDWriteFactory7 *factory, IDWriteFontFallback1 **fallback) DECLSPEC_HIDDEN;
 347 extern void release_system_fontfallback(IDWriteFontFallback1 *fallback) DECLSPEC_HIDDEN;
 348 extern void release_system_fallback_data(void) DECLSPEC_HIDDEN;
 349 extern HRESULT create_fontfallback_builder(IDWriteFactory7 *factory, IDWriteFontFallbackBuilder **builder) DECLSPEC_HIDDEN;
 350 extern HRESULT create_matching_font(IDWriteFontCollection *collection, const WCHAR *family, DWRITE_FONT_WEIGHT weight,
 351         DWRITE_FONT_STYLE style, DWRITE_FONT_STRETCH stretch, REFIID riid, void **obj) DECLSPEC_HIDDEN;
 352 extern HRESULT create_fontfacereference(IDWriteFactory7 *factory, IDWriteFontFile *file, UINT32 face_index,
 353         DWRITE_FONT_SIMULATIONS simulations, DWRITE_FONT_AXIS_VALUE const *axis_values, UINT32 axis_values_count,
 354         IDWriteFontFaceReference1 **reference) DECLSPEC_HIDDEN;
 355 extern HRESULT factory_get_cached_fontface(IDWriteFactory7 *factory, IDWriteFontFile * const *files, UINT32 num_files,
 356         DWRITE_FONT_SIMULATIONS simulations, struct list **cache, REFIID riid, void **obj) DECLSPEC_HIDDEN;
 357 extern void factory_detach_fontcollection(IDWriteFactory7 *factory, IDWriteFontCollection3 *collection) DECLSPEC_HIDDEN;
 358 extern void factory_detach_gdiinterop(IDWriteFactory7 *factory, IDWriteGdiInterop1 *interop) DECLSPEC_HIDDEN;
 359 extern struct fontfacecached *factory_cache_fontface(IDWriteFactory7 *factory, struct list *fontfaces,
 360         IDWriteFontFace5 *fontface) DECLSPEC_HIDDEN;
 361 extern void    get_logfont_from_font(IDWriteFont*,LOGFONTW*) DECLSPEC_HIDDEN;
 362 extern void    get_logfont_from_fontface(IDWriteFontFace*,LOGFONTW*) DECLSPEC_HIDDEN;
 363 extern HRESULT get_fontsig_from_font(IDWriteFont*,FONTSIGNATURE*) DECLSPEC_HIDDEN;
 364 extern HRESULT get_fontsig_from_fontface(IDWriteFontFace*,FONTSIGNATURE*) DECLSPEC_HIDDEN;
 365 extern HRESULT create_gdiinterop(IDWriteFactory7 *factory, IDWriteGdiInterop1 **interop) DECLSPEC_HIDDEN;
 366 extern void fontface_detach_from_cache(IDWriteFontFace5 *fontface) DECLSPEC_HIDDEN;
 367 extern void factory_lock(IDWriteFactory7 *factory) DECLSPEC_HIDDEN;
 368 extern void factory_unlock(IDWriteFactory7 *factory) DECLSPEC_HIDDEN;
 369 extern HRESULT create_inmemory_fileloader(IDWriteInMemoryFontFileLoader **loader) DECLSPEC_HIDDEN;
 370 extern HRESULT create_font_resource(IDWriteFactory7 *factory, IDWriteFontFile *file, UINT32 face_index,
 371         IDWriteFontResource **resource) DECLSPEC_HIDDEN;
 372 extern HRESULT create_fontset_builder(IDWriteFactory7 *factory, IDWriteFontSetBuilder2 **ret) DECLSPEC_HIDDEN;
 373 extern HRESULT compute_glyph_origins(DWRITE_GLYPH_RUN const *run, DWRITE_MEASURING_MODE measuring_mode,
 374         D2D1_POINT_2F baseline_origin, DWRITE_MATRIX const *transform, D2D1_POINT_2F *origins) DECLSPEC_HIDDEN;
 375 extern HRESULT create_font_collection_from_set(IDWriteFactory7 *factory, IDWriteFontSet *set,
 376         DWRITE_FONT_FAMILY_MODEL family_model, REFGUID riid, void **ret) DECLSPEC_HIDDEN;
 377 extern HRESULT create_system_fontset(IDWriteFactory7 *factory, REFIID riid, void **obj) DECLSPEC_HIDDEN;
 378
 379 struct dwrite_fontface;
 380
 381 extern float fontface_get_scaled_design_advance(struct dwrite_fontface *fontface, DWRITE_MEASURING_MODE measuring_mode,
 382         float emsize, float ppdip, const DWRITE_MATRIX *transform, UINT16 glyph, BOOL is_sideways) DECLSPEC_HIDDEN;
 383 extern struct dwrite_fontface *unsafe_impl_from_IDWriteFontFace(IDWriteFontFace *iface) DECLSPEC_HIDDEN;
 384
 385 struct dwrite_textformat_data
 386 {
 387     WCHAR *family_name;
 388     unsigned int family_len;
 389     WCHAR *locale;
 390     unsigned int locale_len;
 391
 392     DWRITE_FONT_WEIGHT weight;
 393     DWRITE_FONT_STYLE style;
 394     DWRITE_FONT_STRETCH stretch;
 395
 396     DWRITE_PARAGRAPH_ALIGNMENT paralign;
 397     DWRITE_READING_DIRECTION readingdir;
 398     DWRITE_WORD_WRAPPING wrapping;
 399     BOOL last_line_wrapping;
 400     DWRITE_TEXT_ALIGNMENT textalignment;
 401     DWRITE_FLOW_DIRECTION flow;
 402     DWRITE_VERTICAL_GLYPH_ORIENTATION vertical_orientation;
 403     DWRITE_OPTICAL_ALIGNMENT optical_alignment;
 404     DWRITE_LINE_SPACING spacing;
 405     DWRITE_AUTOMATIC_FONT_AXES automatic_axes;
 406
 407     float fontsize;
 408     float tabstop;
 409
 410     DWRITE_TRIMMING trimming;
 411     IDWriteInlineObject *trimmingsign;
 412
 413     IDWriteFontCollection *collection;
 414     IDWriteFontFallback *fallback;
 415
 416     DWRITE_FONT_AXIS_VALUE *axis_values;
 417     unsigned int axis_values_count;
 418 };
 419
 420 struct dwrite_textformat
 421 {
 422     IDWriteTextFormat3 IDWriteTextFormat3_iface;
 423     LONG refcount;
 424     struct dwrite_textformat_data format;
 425 };
 426
 427 struct dwrite_textformat *unsafe_impl_from_IDWriteTextFormat(IDWriteTextFormat *iface) DECLSPEC_HIDDEN;
 428 void release_format_data(struct dwrite_textformat_data *data) DECLSPEC_HIDDEN;
 429
 430 HRESULT format_set_vertical_orientation(struct dwrite_textformat_data *format,
 431         DWRITE_VERTICAL_GLYPH_ORIENTATION orientation, BOOL *changed) DECLSPEC_HIDDEN;
 432 HRESULT format_set_fontfallback(struct dwrite_textformat_data *format, IDWriteFontFallback *fallback) DECLSPEC_HIDDEN;
 433 HRESULT format_get_fontfallback(const struct dwrite_textformat_data *format, IDWriteFontFallback **fallback) DECLSPEC_HIDDEN;
 434 HRESULT format_set_font_axisvalues(struct dwrite_textformat_data *format,
 435         DWRITE_FONT_AXIS_VALUE const *axis_values, unsigned int num_values) DECLSPEC_HIDDEN;
 436 HRESULT format_get_font_axisvalues(struct dwrite_textformat_data *format,
 437         DWRITE_FONT_AXIS_VALUE *axis_values, unsigned int num_values) DECLSPEC_HIDDEN;
 438 HRESULT format_set_optical_alignment(struct dwrite_textformat_data *format,
 439         DWRITE_OPTICAL_ALIGNMENT alignment) DECLSPEC_HIDDEN;
 440 HRESULT format_set_trimming(struct dwrite_textformat_data *format, DWRITE_TRIMMING const *trimming,
 441         IDWriteInlineObject *trimming_sign, BOOL *changed) DECLSPEC_HIDDEN;
 442 HRESULT format_set_flowdirection(struct dwrite_textformat_data *format,
 443         DWRITE_FLOW_DIRECTION direction, BOOL *changed) DECLSPEC_HIDDEN;
 444 HRESULT format_set_readingdirection(struct dwrite_textformat_data *format,
 445         DWRITE_READING_DIRECTION direction, BOOL *changed) DECLSPEC_HIDDEN;
 446 HRESULT format_set_wordwrapping(struct dwrite_textformat_data *format, DWRITE_WORD_WRAPPING wrapping,
 447         BOOL *changed) DECLSPEC_HIDDEN;
 448 HRESULT format_set_paralignment(struct dwrite_textformat_data *format,
 449         DWRITE_PARAGRAPH_ALIGNMENT alignment, BOOL *changed) DECLSPEC_HIDDEN;
 450 HRESULT format_set_textalignment(struct dwrite_textformat_data *format, DWRITE_TEXT_ALIGNMENT alignment,
 451         BOOL *changed) DECLSPEC_HIDDEN;
 452 HRESULT format_set_linespacing(struct dwrite_textformat_data *format,
 453         DWRITE_LINE_SPACING const *spacing, BOOL *changed) DECLSPEC_HIDDEN;
 454
 455 /* Opentype font table functions */
 456 struct dwrite_font_props
 457 {
 458     DWRITE_FONT_STYLE style;
 459     DWRITE_FONT_STRETCH stretch;
 460     DWRITE_FONT_WEIGHT weight;
 461     DWRITE_PANOSE panose;
 462     FONTSIGNATURE fontsig;
 463     LOGFONTW lf;
 464     UINT32 flags;
 465     float slant_angle;
 466 };
 467
 468 struct file_stream_desc {
 469     IDWriteFontFileStream *stream;
 470     DWRITE_FONT_FACE_TYPE face_type;
 471     UINT32 face_index;
 472 };
 473
 474 extern const void* get_fontface_table(IDWriteFontFace5 *fontface, UINT32 tag,
 475         struct dwrite_fonttable *table) DECLSPEC_HIDDEN;
 476
 477 struct tag_array
 478 {
 479     unsigned int *tags;
 480     size_t capacity;
 481     size_t count;
 482 };
 483
 484 struct ot_gsubgpos_table
 485 {
 486     struct dwrite_fonttable table;
 487     unsigned int script_list;
 488     unsigned int feature_list;
 489     unsigned int lookup_list;
 490 };
 491
 492 struct dwrite_var_axis
 493 {
 494     DWRITE_FONT_AXIS_TAG tag;
 495     float default_value;
 496     float min_value;
 497     float max_value;
 498     unsigned int attributes;
 499 };
 500
 501 extern HRESULT opentype_analyze_font(IDWriteFontFileStream*,BOOL*,DWRITE_FONT_FILE_TYPE*,DWRITE_FONT_FACE_TYPE*,UINT32*) DECLSPEC_HIDDEN;
 502 extern HRESULT opentype_try_get_font_table(const struct file_stream_desc *stream_desc, UINT32 tag, const void **data,
 503         void **context, UINT32 *size, BOOL *exists) DECLSPEC_HIDDEN;
 504 extern void opentype_get_font_properties(const struct file_stream_desc *stream_desc,
 505         struct dwrite_font_props *props) DECLSPEC_HIDDEN;
 506 extern void opentype_get_font_metrics(struct file_stream_desc*,DWRITE_FONT_METRICS1*,DWRITE_CARET_METRICS*) DECLSPEC_HIDDEN;
 507 extern void opentype_get_font_typo_metrics(struct file_stream_desc *stream_desc, unsigned int *ascent,
 508         unsigned int *descent) DECLSPEC_HIDDEN;
 509 extern HRESULT opentype_get_font_info_strings(const struct file_stream_desc *stream_desc,
 510         DWRITE_INFORMATIONAL_STRING_ID id, IDWriteLocalizedStrings **strings) DECLSPEC_HIDDEN;
 511 extern HRESULT opentype_get_font_familyname(const struct file_stream_desc *desc, DWRITE_FONT_FAMILY_MODEL family_model,
 512         IDWriteLocalizedStrings **names) DECLSPEC_HIDDEN;
 513 extern HRESULT opentype_get_font_facename(struct file_stream_desc*,WCHAR*,IDWriteLocalizedStrings**) DECLSPEC_HIDDEN;
 514 extern void opentype_get_typographic_features(struct ot_gsubgpos_table *table, unsigned int script_index,
 515         unsigned int language_index, struct tag_array *tags) DECLSPEC_HIDDEN;
 516 extern BOOL opentype_get_vdmx_size(const struct dwrite_fonttable *table, INT ppem, UINT16 *ascent,
 517         UINT16 *descent) DECLSPEC_HIDDEN;
 518 extern unsigned int opentype_get_cpal_palettecount(const struct dwrite_fonttable *table) DECLSPEC_HIDDEN;
 519 extern unsigned int opentype_get_cpal_paletteentrycount(const struct dwrite_fonttable *table) DECLSPEC_HIDDEN;
 520 extern HRESULT opentype_get_cpal_entries(const struct dwrite_fonttable *table, unsigned int palette,
 521         unsigned int first_entry_index, unsigned int entry_count, DWRITE_COLOR_F *entries) DECLSPEC_HIDDEN;
 522 extern UINT32 opentype_get_glyph_image_formats(IDWriteFontFace5 *fontface) DECLSPEC_HIDDEN;
 523 extern DWRITE_CONTAINER_TYPE opentype_analyze_container_type(void const *, UINT32) DECLSPEC_HIDDEN;
 524 extern HRESULT opentype_get_kerning_pairs(struct dwrite_fontface *fontface, unsigned int count,
 525         const UINT16 *glyphs, INT32 *values) DECLSPEC_HIDDEN;
 526 extern BOOL opentype_has_kerning_pairs(struct dwrite_fontface *fontface) DECLSPEC_HIDDEN;
 527 extern HRESULT opentype_get_font_var_axis(const struct file_stream_desc *stream_desc, struct dwrite_var_axis **axis,
 528         unsigned int *axis_count) DECLSPEC_HIDDEN;
 529
 530 struct dwrite_colorglyph {
 531     USHORT layer; /* [0, num_layers) index indicating current layer */
 532     /* base glyph record data, set once on initialization */
 533     USHORT first_layer;
 534     USHORT num_layers;
 535     /* current layer record data, updated every time glyph is switched to next layer */
 536     UINT16 glyph;
 537     UINT16 palette_index;
 538 };
 539
 540 extern HRESULT opentype_get_colr_glyph(const struct dwrite_fonttable *table, UINT16 glyph,
 541         struct dwrite_colorglyph *color_glyph) DECLSPEC_HIDDEN;
 542 extern void opentype_colr_next_glyph(const struct dwrite_fonttable *table,
 543         struct dwrite_colorglyph *color_glyph) DECLSPEC_HIDDEN;
 544
 545 enum gasp_flags {
 546     GASP_GRIDFIT             = 0x0001,
 547     GASP_DOGRAY              = 0x0002,
 548     GASP_SYMMETRIC_GRIDFIT   = 0x0004,
 549     GASP_SYMMETRIC_SMOOTHING = 0x0008,
 550 };
 551
 552 extern unsigned int opentype_get_gasp_flags(const struct dwrite_fonttable *gasp, float emsize) DECLSPEC_HIDDEN;
 553
 554 /* BiDi helpers */
 555 struct bidi_char
 556 {
 557     unsigned int ch;
 558     UINT8 explicit;
 559     UINT8 resolved;
 560     UINT8 nominal_bidi_class;
 561     UINT8 bidi_class;
 562 };
 563
 564 extern HRESULT bidi_computelevels(struct bidi_char *chars, unsigned int count, UINT8 baselevel) DECLSPEC_HIDDEN;
 565
 566 struct dwrite_glyphbitmap
 567 {
 568     DWORD simulations;
 569     float emsize;
 570     UINT16 glyph;
 571     INT pitch;
 572     RECT bbox;
 573     BYTE *buf;
 574     DWRITE_MATRIX *m;
 575 };
 576
 577 enum dwrite_outline_tags
 578 {
 579     OUTLINE_BEGIN_FIGURE,
 580     OUTLINE_END_FIGURE,
 581     OUTLINE_LINE,
 582     OUTLINE_BEZIER,
 583 };
 584
 585 struct dwrite_outline
 586 {
 587     struct
 588     {
 589         unsigned char *values;
 590         size_t count;
 591         size_t size;
 592     } tags;
 593
 594     struct
 595     {
 596         D2D1_POINT_2F *values;
 597         size_t count;
 598         size_t size;
 599     } points;
 600 };
 601
 602 /* Glyph shaping */
 603 enum SCRIPT_JUSTIFY
 604 {
 605     SCRIPT_JUSTIFY_NONE,
 606     SCRIPT_JUSTIFY_ARABIC_BLANK,
 607     SCRIPT_JUSTIFY_CHARACTER,
 608     SCRIPT_JUSTIFY_RESERVED1,
 609     SCRIPT_JUSTIFY_BLANK,
 610     SCRIPT_JUSTIFY_RESERVED2,
 611     SCRIPT_JUSTIFY_RESERVED3,
 612     SCRIPT_JUSTIFY_ARABIC_NORMAL,
 613     SCRIPT_JUSTIFY_ARABIC_KASHIDA,
 614     SCRIPT_JUSTIFY_ARABIC_ALEF,
 615     SCRIPT_JUSTIFY_ARABIC_HA,
 616     SCRIPT_JUSTIFY_ARABIC_RA,
 617     SCRIPT_JUSTIFY_ARABIC_BA,
 618     SCRIPT_JUSTIFY_ARABIC_BARA,
 619     SCRIPT_JUSTIFY_ARABIC_SEEN,
 620     SCRIPT_JUSTIFY_ARABIC_SEEN_M
 621 };
 622
 623 struct scriptshaping_cache
 624 {
 625     const struct shaping_font_ops *font;
 626     void *context;
 627     UINT16 upem;
 628
 629     struct ot_gsubgpos_table gsub;
 630     struct ot_gsubgpos_table gpos;
 631
 632     struct
 633     {
 634         struct dwrite_fonttable table;
 635         unsigned int classdef;
 636         unsigned int markattachclassdef;
 637         unsigned int markglyphsetdef;
 638     } gdef;
 639 };
 640
 641 struct shaping_glyph_info
 642 {
 643     /* Combined features mask. */
 644     unsigned int mask;
 645     /* Derived from glyph class, supplied by GDEF. */
 646     unsigned int props;
 647     /* Used for GPOS mark and cursive attachments. */
 648     int attach_chain;
 649     /* Only relevant for isClusterStart glyphs. Indicates text position for this cluster. */
 650     unsigned int start_text_idx;
 651     unsigned int codepoint;
 652 };
 653
 654 struct shaping_glyph_properties
 655 {
 656     UINT16 justification : 4;
 657     UINT16 isClusterStart : 1;
 658     UINT16 isDiacritic : 1;
 659     UINT16 isZeroWidthSpace : 1;
 660     UINT16 reserved : 1;
 661     UINT16 components : 4;
 662     UINT16 lig_component : 4;
 663 };
 664
 665 struct scriptshaping_context;
 666
 667 typedef void (*p_apply_context_lookup)(struct scriptshaping_context *context, unsigned int lookup_index);
 668
 669 enum shaping_feature_flags
 670 {
 671     FEATURE_GLOBAL = 0x1,
 672     FEATURE_GLOBAL_SEARCH = 0x2,
 673     FEATURE_MANUAL_ZWNJ = 0x4,
 674     FEATURE_MANUAL_ZWJ = 0x8,
 675     FEATURE_MANUAL_JOINERS = FEATURE_MANUAL_ZWNJ | FEATURE_MANUAL_ZWJ,
 676     FEATURE_HAS_FALLBACK = 0x10,
 677     FEATURE_NEEDS_FALLBACK = 0x20,
 678 };
 679
 680 struct shaping_feature
 681 {
 682     unsigned int tag;
 683     unsigned int index;
 684     unsigned int flags;
 685     unsigned int max_value;
 686     unsigned int default_value;
 687     unsigned int mask;
 688     unsigned int shift;
 689     unsigned int stage;
 690 };
 691
 692 #define MAX_SHAPING_STAGE 16
 693
 694 struct shaping_features;
 695
 696 typedef void (*stage_func)(struct scriptshaping_context *context,
 697         const struct shaping_features *features);
 698
 699 struct shaping_stage
 700 {
 701     stage_func func;
 702     unsigned int last_lookup;
 703 };
 704
 705 struct shaping_features
 706 {
 707     struct shaping_feature *features;
 708     size_t count;
 709     size_t capacity;
 710     unsigned int stage;
 711     struct shaping_stage stages[MAX_SHAPING_STAGE];
 712 };
 713
 714 struct shaper
 715 {
 716     void (*collect_features)(struct scriptshaping_context *context, struct shaping_features *features);
 717     void (*setup_masks)(struct scriptshaping_context *context, const struct shaping_features *features);
 718 };
 719
 720 extern const struct shaper arabic_shaper DECLSPEC_HIDDEN;
 721
 722 extern void shape_enable_feature(struct shaping_features *features, unsigned int tag,
 723         unsigned int flags) DECLSPEC_HIDDEN;
 724 extern void shape_add_feature_full(struct shaping_features *features, unsigned int tag,
 725         unsigned int flags, unsigned int value) DECLSPEC_HIDDEN;
 726 extern unsigned int shape_get_feature_1_mask(const struct shaping_features *features,
 727         unsigned int tag) DECLSPEC_HIDDEN;
 728 extern void shape_start_next_stage(struct shaping_features *features, stage_func func) DECLSPEC_HIDDEN;
 729
 730 struct scriptshaping_context
 731 {
 732     struct scriptshaping_cache *cache;
 733     const struct shaper *shaper;
 734     unsigned int script;
 735     UINT32 language_tag;
 736
 737     const WCHAR *text;
 738     unsigned int length;
 739     BOOL is_rtl;
 740     BOOL is_sideways;
 741
 742     union
 743     {
 744         struct
 745         {
 746             const UINT16 *glyphs;
 747             const DWRITE_SHAPING_GLYPH_PROPERTIES *glyph_props;
 748             DWRITE_SHAPING_TEXT_PROPERTIES *text_props;
 749             const UINT16 *clustermap;
 750             p_apply_context_lookup apply_context_lookup;
 751         } pos;
 752         struct
 753         {
 754             UINT16 *glyphs;
 755             DWRITE_SHAPING_GLYPH_PROPERTIES *glyph_props;
 756             DWRITE_SHAPING_TEXT_PROPERTIES *text_props;
 757             UINT16 *clustermap;
 758             p_apply_context_lookup apply_context_lookup;
 759             unsigned int max_glyph_count;
 760             unsigned int capacity;
 761             const WCHAR *digits;
 762         } subst;
 763         struct
 764         {
 765             UINT16 *glyphs;
 766             struct shaping_glyph_properties *glyph_props;
 767             DWRITE_SHAPING_TEXT_PROPERTIES *text_props;
 768             UINT16 *clustermap;
 769             p_apply_context_lookup apply_context_lookup;
 770         } buffer;
 771     } u;
 772
 773     const struct ot_gsubgpos_table *table; /* Either GSUB or GPOS. */
 774     struct
 775     {
 776         const DWRITE_TYPOGRAPHIC_FEATURES **features;
 777         const unsigned int *range_lengths;
 778         unsigned int range_count;
 779     } user_features;
 780     unsigned int global_mask;
 781     unsigned int lookup_mask; /* Currently processed feature mask, set in main loop. */
 782     unsigned int auto_zwj;
 783     unsigned int auto_zwnj;
 784     struct shaping_glyph_info *glyph_infos;
 785     unsigned int has_gpos_attachment : 1;
 786
 787     unsigned int cur;
 788     unsigned int glyph_count;
 789     unsigned int nesting_level_left;
 790
 791     float emsize;
 792     DWRITE_MEASURING_MODE measuring_mode;
 793     float *advances;
 794     DWRITE_GLYPH_OFFSET *offsets;
 795 };
 796
 797 struct shaping_font_ops
 798 {
 799     void (*grab_font_table)(void *context, UINT32 table, const BYTE **data, UINT32 *size, void **data_context);
 800     void (*release_font_table)(void *context, void *data_context);
 801     UINT16 (*get_font_upem)(void *context);
 802     BOOL (*has_glyph)(void *context, unsigned int codepoint);
 803     UINT16 (*get_glyph)(void *context, unsigned int codepoint);
 804 };
 805
 806 extern struct scriptshaping_cache *create_scriptshaping_cache(void *context,
 807         const struct shaping_font_ops *font_ops) DECLSPEC_HIDDEN;
 808 extern void release_scriptshaping_cache(struct scriptshaping_cache*) DECLSPEC_HIDDEN;
 809 extern struct scriptshaping_cache *fontface_get_shaping_cache(struct dwrite_fontface *fontface) DECLSPEC_HIDDEN;
 810
 811 extern void opentype_layout_scriptshaping_cache_init(struct scriptshaping_cache *cache) DECLSPEC_HIDDEN;
 812 extern unsigned int opentype_layout_find_script(const struct scriptshaping_cache *cache, unsigned int kind,
 813         DWORD tag, unsigned int *script_index) DECLSPEC_HIDDEN;
 814 extern unsigned int opentype_layout_find_language(const struct scriptshaping_cache *cache, unsigned int kind,
 815         DWORD tag, unsigned int script_index, unsigned int *language_index) DECLSPEC_HIDDEN;
 816 extern void opentype_layout_apply_gsub_features(struct scriptshaping_context *context, unsigned int script_index,
 817         unsigned int language_index, struct shaping_features *features) DECLSPEC_HIDDEN;
 818 extern void opentype_layout_apply_gpos_features(struct scriptshaping_context *context, unsigned int script_index,
 819         unsigned int language_index, struct shaping_features *features) DECLSPEC_HIDDEN;
 820 extern BOOL opentype_layout_check_feature(struct scriptshaping_context *context, unsigned int script_index,
 821         unsigned int language_index, struct shaping_feature *feature, unsigned int glyph_count,
 822         const UINT16 *glyphs, UINT8 *feature_applies) DECLSPEC_HIDDEN;
 823 extern void opentype_layout_unsafe_to_break(struct scriptshaping_context *context, unsigned int start,
 824         unsigned int end) DECLSPEC_HIDDEN;
 825 extern BOOL opentype_has_vertical_variants(struct dwrite_fontface *fontface) DECLSPEC_HIDDEN;
 826 extern HRESULT opentype_get_vertical_glyph_variants(struct dwrite_fontface *fontface, unsigned int glyph_count,
 827         const UINT16 *nominal_glyphs, UINT16 *glyphs) DECLSPEC_HIDDEN;
 828
 829 extern HRESULT shape_get_glyphs(struct scriptshaping_context *context, const unsigned int *scripts) DECLSPEC_HIDDEN;
 830 extern HRESULT shape_get_positions(struct scriptshaping_context *context, const unsigned int *scripts) DECLSPEC_HIDDEN;
 831 extern HRESULT shape_get_typographic_features(struct scriptshaping_context *context, const unsigned int *scripts,
 832         unsigned int max_tagcount, unsigned int *actual_tagcount, unsigned int *tags) DECLSPEC_HIDDEN;
 833 extern HRESULT shape_check_typographic_feature(struct scriptshaping_context *context, const unsigned int *scripts,
 834         unsigned int tag, unsigned int glyph_count, const UINT16 *glyphs, UINT8 *feature_applies) DECLSPEC_HIDDEN;
 835
 836 struct font_data_context;
 837 extern HMODULE dwrite_module DECLSPEC_HIDDEN;
 838
 839 extern void dwrite_fontface_get_glyph_bbox(IDWriteFontFace *fontface, struct dwrite_glyphbitmap *bitmap) DECLSPEC_HIDDEN;
 840
 841 #endif /* __WINE_DWRITE_PRIVATE_H */