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Side by Side Diff: third_party/freetype/src/truetype/ttinterp.h

Issue 815103002: Update freetype to 2.5.4. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Adjust GYP and GN Created 6 years ago
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1 /***************************************************************************/ 1 /***************************************************************************/
2 /* */ 2 /* */
3 /* ttinterp.h */ 3 /* ttinterp.h */
4 /* */ 4 /* */
5 /* TrueType bytecode interpreter (specification). */ 5 /* TrueType bytecode interpreter (specification). */
6 /* */ 6 /* */
7 /* Copyright 1996-2007, 2010, 2012-2013 by */ 7 /* Copyright 1996-2007, 2010, 2012-2014 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
9 /* */ 9 /* */
10 /* This file is part of the FreeType project, and may only be used, */ 10 /* This file is part of the FreeType project, and may only be used, */
11 /* modified, and distributed under the terms of the FreeType project */ 11 /* modified, and distributed under the terms of the FreeType project */
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13 /* this file you indicate that you have read the license and */ 13 /* this file you indicate that you have read the license and */
14 /* understand and accept it fully. */ 14 /* understand and accept it fully. */
15 /* */ 15 /* */
16 /***************************************************************************/ 16 /***************************************************************************/
17 17
18 18
19 #ifndef __TTINTERP_H__ 19 #ifndef __TTINTERP_H__
20 #define __TTINTERP_H__ 20 #define __TTINTERP_H__
21 21
22 #include "../../include/ft2build.h" 22 #include <ft2build.h>
23 #include "ttobjs.h" 23 #include "ttobjs.h"
24 24
25 25
26 FT_BEGIN_HEADER 26 FT_BEGIN_HEADER
27 27
28 28
29 #ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */ 29 #ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */
30 30
31 #define EXEC_OP_ TT_ExecContext exc, 31 #define EXEC_OP_ TT_ExecContext exc,
32 #define EXEC_OP TT_ExecContext exc 32 #define EXEC_OP TT_ExecContext exc
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after
74 typedef void 74 typedef void
75 (*TT_Move_Func)( EXEC_OP_ TT_GlyphZone zone, 75 (*TT_Move_Func)( EXEC_OP_ TT_GlyphZone zone,
76 FT_UShort point, 76 FT_UShort point,
77 FT_F26Dot6 distance ); 77 FT_F26Dot6 distance );
78 78
79 /* Distance projection along one of the projection vectors */ 79 /* Distance projection along one of the projection vectors */
80 typedef FT_F26Dot6 80 typedef FT_F26Dot6
81 (*TT_Project_Func)( EXEC_OP_ FT_Pos dx, 81 (*TT_Project_Func)( EXEC_OP_ FT_Pos dx,
82 FT_Pos dy ); 82 FT_Pos dy );
83 83
84 /* getting current ppem. Take care of non-square pixels if necessary */
85 typedef FT_Long
86 (*TT_Cur_Ppem_Func)( EXEC_OP );
87
84 /* reading a cvt value. Take care of non-square pixels if necessary */ 88 /* reading a cvt value. Take care of non-square pixels if necessary */
85 typedef FT_F26Dot6 89 typedef FT_F26Dot6
86 (*TT_Get_CVT_Func)( EXEC_OP_ FT_ULong idx ); 90 (*TT_Get_CVT_Func)( EXEC_OP_ FT_ULong idx );
87 91
88 /* setting or moving a cvt value. Take care of non-square pixels */ 92 /* setting or moving a cvt value. Take care of non-square pixels */
89 /* if necessary */ 93 /* if necessary */
90 typedef void 94 typedef void
91 (*TT_Set_CVT_Func)( EXEC_OP_ FT_ULong idx, 95 (*TT_Set_CVT_Func)( EXEC_OP_ FT_ULong idx,
92 FT_F26Dot6 value ); 96 FT_F26Dot6 value );
93 97
94 98
95 /*************************************************************************/ 99 /*************************************************************************/
96 /* */ 100 /* */
97 /* This structure defines a call record, used to manage function calls. */ 101 /* This structure defines a call record, used to manage function calls. */
98 /* */ 102 /* */
99 typedef struct TT_CallRec_ 103 typedef struct TT_CallRec_
100 { 104 {
101 FT_Int Caller_Range; 105 FT_Int Caller_Range;
102 FT_Long Caller_IP; 106 FT_Long Caller_IP;
103 FT_Long Cur_Count; 107 FT_Long Cur_Count;
104 FT_Long Cur_Restart; 108
105 FT_Long Cur_End; 109 TT_DefRecord *Def; /* either FDEF or IDEF */
106 110
107 } TT_CallRec, *TT_CallStack; 111 } TT_CallRec, *TT_CallStack;
108 112
109 113
110 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING 114 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
111 115
112 /*************************************************************************/ 116 /*************************************************************************/
113 /* */ 117 /* */
114 /* These structures define rules used to tweak subpixel hinting for */ 118 /* These structures define rules used to tweak subpixel hinting for */
115 /* various fonts. "", 0, "", NULL value indicates to match any value. */ 119 /* various fonts. "", 0, "", NULL value indicates to match any value. */
(...skipping 105 matching lines...) Expand 10 before | Expand all | Expand 10 after
221 TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */ 225 TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */
222 /* useful for the debugger */ 226 /* useful for the debugger */
223 227
224 FT_UShort storeSize; /* size of current storage */ 228 FT_UShort storeSize; /* size of current storage */
225 FT_Long* storage; /* storage area */ 229 FT_Long* storage; /* storage area */
226 230
227 FT_F26Dot6 period; /* values used for the */ 231 FT_F26Dot6 period; /* values used for the */
228 FT_F26Dot6 phase; /* `SuperRounding' */ 232 FT_F26Dot6 phase; /* `SuperRounding' */
229 FT_F26Dot6 threshold; 233 FT_F26Dot6 threshold;
230 234
231 #if 0
232 /* this seems to be unused */
233 FT_Int cur_ppem; /* ppem along the current proj vector */
234 #endif
235
236 FT_Bool instruction_trap; /* If `True', the interpreter will */ 235 FT_Bool instruction_trap; /* If `True', the interpreter will */
237 /* exit after each instruction */ 236 /* exit after each instruction */
238 237
239 TT_GraphicsState default_GS; /* graphics state resulting from */ 238 TT_GraphicsState default_GS; /* graphics state resulting from */
240 /* the prep program */ 239 /* the prep program */
241 FT_Bool is_composite; /* true if the glyph is composite */ 240 FT_Bool is_composite; /* true if the glyph is composite */
242 FT_Bool pedantic_hinting; /* true if pedantic interpretation */ 241 FT_Bool pedantic_hinting; /* true if pedantic interpretation */
243 242
244 /* latest interpreter additions */ 243 /* latest interpreter additions */
245 244
246 FT_Long F_dot_P; /* dot product of freedom and projection */ 245 FT_Long F_dot_P; /* dot product of freedom and projection */
247 /* vectors */ 246 /* vectors */
248 TT_Round_Func func_round; /* current rounding function */ 247 TT_Round_Func func_round; /* current rounding function */
249 248
250 TT_Project_Func func_project, /* current projection function */ 249 TT_Project_Func func_project, /* current projection function */
251 func_dualproj, /* current dual proj. function */ 250 func_dualproj, /* current dual proj. function */
252 func_freeProj; /* current freedom proj. func */ 251 func_freeProj; /* current freedom proj. func */
253 252
254 TT_Move_Func func_move; /* current point move function */ 253 TT_Move_Func func_move; /* current point move function */
255 TT_Move_Func func_move_orig; /* move original position function */ 254 TT_Move_Func func_move_orig; /* move original position function */
256 255
256 TT_Cur_Ppem_Func func_cur_ppem; /* get current proj. ppem value */
257
257 TT_Get_CVT_Func func_read_cvt; /* read a cvt entry */ 258 TT_Get_CVT_Func func_read_cvt; /* read a cvt entry */
258 TT_Set_CVT_Func func_write_cvt; /* write a cvt entry (in pixels) */ 259 TT_Set_CVT_Func func_write_cvt; /* write a cvt entry (in pixels) */
259 TT_Set_CVT_Func func_move_cvt; /* incr a cvt entry (in pixels) */ 260 TT_Set_CVT_Func func_move_cvt; /* incr a cvt entry (in pixels) */
260 261
261 FT_Bool grayscale; /* are we hinting for grayscale? */ 262 FT_Bool grayscale; /* are we hinting for grayscale? */
262 263
263 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING 264 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
264 TT_Round_Func func_round_sphn; /* subpixel rounding function */ 265 TT_Round_Func func_round_sphn; /* subpixel rounding function */
265 266
266 FT_Bool grayscale_hinting; /* Using grayscale hinting? */ 267 FT_Bool subpixel; /* Using subpixel hinting? */
267 FT_Bool subpixel_hinting; /* Using subpixel hinting? */
268 FT_Bool native_hinting; /* Using native hinting? */
269 FT_Bool ignore_x_mode; /* Standard rendering mode for */ 268 FT_Bool ignore_x_mode; /* Standard rendering mode for */
270 /* subpixel hinting. On if gray */ 269 /* subpixel hinting. On if gray */
271 /* or subpixel hinting is on ) */ 270 /* or subpixel hinting is on. */
272 271
273 /* The following 4 aren't fully implemented but here for MS rasterizer */ 272 /* The following 4 aren't fully implemented but here for MS rasterizer */
274 /* compatibility. */ 273 /* compatibility. */
275 FT_Bool compatible_widths; /* compatible widths? */ 274 FT_Bool compatible_widths; /* compatible widths? */
276 FT_Bool symmetrical_smoothing; /* symmetrical_smoothing? */ 275 FT_Bool symmetrical_smoothing; /* symmetrical_smoothing? */
277 FT_Bool bgr; /* bgr instead of rgb? */ 276 FT_Bool bgr; /* bgr instead of rgb? */
278 FT_Bool subpixel_positioned; /* subpixel positioned */ 277 FT_Bool subpixel_positioned; /* subpixel positioned */
279 /* (DirectWrite ClearType)? */ 278 /* (DirectWrite ClearType)? */
280 279
281 FT_Int rasterizer_version; /* MS rasterizer version */ 280 FT_Int rasterizer_version; /* MS rasterizer version */
282 281
283 FT_Bool iup_called; /* IUP called for glyph? */ 282 FT_Bool iup_called; /* IUP called for glyph? */
284 283
285 FT_ULong sph_tweak_flags; /* flags to control */ 284 FT_ULong sph_tweak_flags; /* flags to control */
286 /* hint tweaks */ 285 /* hint tweaks */
287 286
288 FT_ULong sph_in_func_flags; /* flags to indicate if in */ 287 FT_ULong sph_in_func_flags; /* flags to indicate if in */
289 /* special functions */ 288 /* special functions */
290 289
291 #endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */ 290 #endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
292 291
293 } TT_ExecContextRec; 292 } TT_ExecContextRec;
294 293
295 294
296 extern const TT_GraphicsState tt_default_graphics_state; 295 extern const TT_GraphicsState tt_default_graphics_state;
297 296
298 297
299 #ifdef TT_USE_BYTECODE_INTERPRETER 298 #ifdef TT_USE_BYTECODE_INTERPRETER
300 FT_LOCAL( FT_Error ) 299 FT_LOCAL( void )
301 TT_Goto_CodeRange( TT_ExecContext exec, 300 TT_Goto_CodeRange( TT_ExecContext exec,
302 FT_Int range, 301 FT_Int range,
303 FT_Long IP ); 302 FT_Long IP );
304 303
305 FT_LOCAL( FT_Error ) 304 FT_LOCAL( void )
306 TT_Set_CodeRange( TT_ExecContext exec, 305 TT_Set_CodeRange( TT_ExecContext exec,
307 FT_Int range, 306 FT_Int range,
308 void* base, 307 void* base,
309 FT_Long length ); 308 FT_Long length );
310 309
311 FT_LOCAL( FT_Error ) 310 FT_LOCAL( void )
312 TT_Clear_CodeRange( TT_ExecContext exec, 311 TT_Clear_CodeRange( TT_ExecContext exec,
313 FT_Int range ); 312 FT_Int range );
314 313
315 314
316 FT_LOCAL( FT_Error ) 315 FT_LOCAL( FT_Error )
317 Update_Max( FT_Memory memory, 316 Update_Max( FT_Memory memory,
318 FT_ULong* size, 317 FT_ULong* size,
319 FT_Long multiplier, 318 FT_Long multiplier,
320 void* _pbuff, 319 void* _pbuff,
321 FT_ULong new_max ); 320 FT_ULong new_max );
(...skipping 17 matching lines...) Expand all
339 /* A handle to the execution context. Initialized for `face'. */ 338 /* A handle to the execution context. Initialized for `face'. */
340 /* */ 339 /* */
341 /* <Note> */ 340 /* <Note> */
342 /* Only the glyph loader and debugger should call this function. */ 341 /* Only the glyph loader and debugger should call this function. */
343 /* */ 342 /* */
344 FT_EXPORT( TT_ExecContext ) 343 FT_EXPORT( TT_ExecContext )
345 TT_New_Context( TT_Driver driver ); 344 TT_New_Context( TT_Driver driver );
346 345
347 346
348 #ifdef TT_USE_BYTECODE_INTERPRETER 347 #ifdef TT_USE_BYTECODE_INTERPRETER
349 FT_LOCAL( FT_Error ) 348 FT_LOCAL( void )
350 TT_Done_Context( TT_ExecContext exec ); 349 TT_Done_Context( TT_ExecContext exec );
351 350
352 FT_LOCAL( FT_Error ) 351 FT_LOCAL( FT_Error )
353 TT_Load_Context( TT_ExecContext exec, 352 TT_Load_Context( TT_ExecContext exec,
354 TT_Face face, 353 TT_Face face,
355 TT_Size size ); 354 TT_Size size );
356 355
357 FT_LOCAL( FT_Error ) 356 FT_LOCAL( void )
358 TT_Save_Context( TT_ExecContext exec, 357 TT_Save_Context( TT_ExecContext exec,
359 TT_Size ins ); 358 TT_Size ins );
360 359
361 FT_LOCAL( FT_Error ) 360 FT_LOCAL( FT_Error )
362 TT_Run_Context( TT_ExecContext exec, 361 TT_Run_Context( TT_ExecContext exec,
363 FT_Bool debug ); 362 FT_Bool debug );
364 #endif /* TT_USE_BYTECODE_INTERPRETER */ 363 #endif /* TT_USE_BYTECODE_INTERPRETER */
365 364
366 365
367 /*************************************************************************/ 366 /*************************************************************************/
(...skipping 20 matching lines...) Expand all
388 FT_EXPORT( FT_Error ) 387 FT_EXPORT( FT_Error )
389 TT_RunIns( TT_ExecContext exec ); 388 TT_RunIns( TT_ExecContext exec );
390 389
391 390
392 FT_END_HEADER 391 FT_END_HEADER
393 392
394 #endif /* __TTINTERP_H__ */ 393 #endif /* __TTINTERP_H__ */
395 394
396 395
397 /* END */ 396 /* END */
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