ReactOS  0.4.14-dev-52-g6116262
ttdriver.c File Reference
#include <ft2build.h>
#include "ttdriver.h"
#include "ttgload.h"
#include "ttpload.h"
#include "tterrors.h"
#include "ttpic.h"
Include dependency graph for ttdriver.c:
This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros

#define FT_COMPONENT   trace_ttdriver
 
#define TT_HINTER_FLAG   0
 
#define TT_SIZE_SELECT   0
 

Functions

static FT_Error tt_property_set (FT_Module module, const char *property_name, const void *value, FT_Bool value_is_string)
 
static FT_Error tt_property_get (FT_Module module, const char *property_name, const void *value)
 
 FT_DEFINE_SERVICE_PROPERTIESREC (tt_service_properties,(FT_Properties_SetFunc) tt_property_set,(FT_Properties_GetFunc) tt_property_get) static FT_Error tt_get_kerning(FT_Face ttface
 
 if (sfnt)
 
static FT_Error tt_size_request (FT_Size size, FT_Size_Request req)
 
static FT_Error tt_glyph_load (FT_GlyphSlot ttslot, FT_Size ttsize, FT_UInt glyph_index, FT_Int32 load_flags)
 
 FT_DEFINE_SERVICE_TTGLYFREC (tt_service_truetype_glyf,(TT_Glyf_GetLocationFunc) tt_face_get_location) FT_DEFINE_SERVICEDESCREC4(tt_services
 
&TT_SERVICE_PROPERTIES_GET tt_get_interface (FT_Module driver, const char *tt_interface)
 

Variables

FT_UInt left_glyph
 
FT_UInt FT_UInt right_glyph
 
FT_UInt FT_UInt FT_Vectorkerning
 
SFNT_Service sfnt = (SFNT_Service)face->sfnt
 
kerning x = 0
 
kerning y = 0
 
static const FT_Service_TrueTypeEngineRec tt_service_truetype_engine
 
 FT_SERVICE_ID_FONT_FORMAT
 
 FT_FONT_FORMAT_TRUETYPE
 
 FT_SERVICE_ID_TRUETYPE_ENGINE
 
 FT_SERVICE_ID_TT_GLYF
 
TT_SERVICE_TRUETYPE_GLYF_GET
 
 FT_SERVICE_ID_PROPERTIES
 

Macro Definition Documentation

◆ FT_COMPONENT

#define FT_COMPONENT   trace_ttdriver

Definition at line 55 of file ttdriver.c.

◆ TT_HINTER_FLAG

#define TT_HINTER_FLAG   0

Definition at line 616 of file ttdriver.c.

◆ TT_SIZE_SELECT

#define TT_SIZE_SELECT   0

Definition at line 622 of file ttdriver.c.

Function Documentation

◆ FT_DEFINE_SERVICE_PROPERTIESREC()

FT_DEFINE_SERVICE_PROPERTIESREC ( tt_service_properties  ,
(FT_Properties_SetFunc tt_property_set,
(FT_Properties_GetFunc tt_property_get 
)

◆ FT_DEFINE_SERVICE_TTGLYFREC()

FT_DEFINE_SERVICE_TTGLYFREC ( tt_service_truetype_glyf  ,
(TT_Glyf_GetLocationFunc tt_face_get_location 
)

◆ if()

if ( sfnt  )

Definition at line 212 of file ttdriver.c.

225  {
226  FT_UInt nn;
227  TT_Face face = (TT_Face)ttface;
228 
229 
230  /* XXX: TODO: check for sbits */
231 
233  {
234 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
235  /* no fast retrieval for blended MM fonts without VVAR table */
236  if ( ( FT_IS_NAMED_INSTANCE( ttface ) || FT_IS_VARIATION( ttface ) ) &&
237  !( face->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) )
238  return FT_THROW( Unimplemented_Feature );
239 #endif
240 
241  for ( nn = 0; nn < count; nn++ )
242  {
243  FT_Short tsb;
244  FT_UShort ah;
245 
246 
247  /* since we don't need `tsb', we use zero for `yMax' parameter */
248  TT_Get_VMetrics( face, start + nn, 0, &tsb, &ah );
249  advances[nn] = ah;
250  }
251  }
252  else
253  {
254 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
255  /* no fast retrieval for blended MM fonts without HVAR table */
256  if ( ( FT_IS_NAMED_INSTANCE( ttface ) || FT_IS_VARIATION( ttface ) ) &&
257  !( face->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) )
258  return FT_THROW( Unimplemented_Feature );
259 #endif
260 
261  for ( nn = 0; nn < count; nn++ )
262  {
263  FT_Short lsb;
264  FT_UShort aw;
265 
266 
267  TT_Get_HMetrics( face, start + nn, &lsb, &aw );
268  advances[nn] = aw;
269  }
270  }
271 
272  return FT_Err_Ok;
273  }
#define FT_LOAD_VERTICAL_LAYOUT
Definition: freetype.h:3013
#define TT_FACE_FLAG_VAR_HADVANCE
Definition: tttypes.h:1113
GLuint GLuint GLsizei count
Definition: gl.h:1545
return FT_Err_Ok
Definition: ftbbox.c:511
#define FT_THROW(e)
Definition: ftdebug.h:213
TT_Get_VMetrics(TT_Face face, FT_UInt idx, FT_Pos yMax, FT_Short *tsb, FT_UShort *ah)
Definition: ttgload.c:93
#define TT_FACE_FLAG_VAR_VADVANCE
Definition: tttypes.h:1118
struct TT_FaceRec_ * TT_Face
Definition: tttypes.h:973
#define FT_IS_NAMED_INSTANCE(face)
Definition: freetype.h:1424
TT_Get_HMetrics(TT_Face face, FT_UInt idx, FT_Short *lsb, FT_UShort *aw)
Definition: ttgload.c:75
#define FT_IS_VARIATION(face)
Definition: freetype.h:1442
GLbitfield flags
Definition: glext.h:7161
signed short FT_Short
Definition: fttypes.h:198
unsigned int FT_UInt
Definition: fttypes.h:231
GLuint start
Definition: gl.h:1545
unsigned short FT_UShort
Definition: fttypes.h:209
GLenum GLuint GLint GLenum face
Definition: glext.h:7025

◆ tt_get_interface()

& TT_SERVICE_PROPERTIES_GET tt_get_interface ( FT_Module  driver,
const char tt_interface 
)

Definition at line 568 of file ttdriver.c.

570  {
573  FT_Module sfntd;
575 
576 
577  /* TT_SERVICES_GET dereferences `library' in PIC mode */
578 #ifdef FT_CONFIG_OPTION_PIC
579  if ( !driver )
580  return NULL;
581  library = driver->library;
582  if ( !library )
583  return NULL;
584 #endif
585 
586  result = ft_service_list_lookup( TT_SERVICES_GET, tt_interface );
587  if ( result )
588  return result;
589 
590 #ifndef FT_CONFIG_OPTION_PIC
591  if ( !driver )
592  return NULL;
593  library = driver->library;
594  if ( !library )
595  return NULL;
596 #endif
597 
598  /* only return the default interface from the SFNT module */
599  sfntd = FT_Get_Module( library, "sfnt" );
600  if ( sfntd )
601  {
602  sfnt = (SFNT_Service)( sfntd->clazz->module_interface );
603  if ( sfnt )
604  return sfnt->get_interface( driver, tt_interface );
605  }
606 
607  return 0;
608  }
ft_service_list_lookup(FT_ServiceDesc service_descriptors, const char *service_id)
Definition: ftobjs.c:98
SFNT_Interface * SFNT_Service
Definition: sfnt.h:628
SFNT_Service sfnt
Definition: ttdriver.c:206
FT_Library library
Definition: cffdrivr.c:654
struct @1605::@1606 driver
smooth NULL
Definition: ftsmooth.c:416
#define TT_SERVICES_GET
Definition: ttpic.h:28
const void * module_interface
Definition: ftmodapi.h:225
FT_Get_Module(FT_Library library, const char *module_name)
Definition: ftobjs.c:4837
FT_Module_Requester get_interface
Definition: sfnt.h:569
GLuint64EXT * result
Definition: glext.h:11304
FT_Module_Class * clazz
Definition: ftobjs.h:535

◆ tt_glyph_load()

static FT_Error tt_glyph_load ( FT_GlyphSlot  ttslot,
FT_Size  ttsize,
FT_UInt  glyph_index,
FT_Int32  load_flags 
)
static

Definition at line 414 of file ttdriver.c.

418  {
419  TT_GlyphSlot slot = (TT_GlyphSlot)ttslot;
420  TT_Size size = (TT_Size)ttsize;
421  FT_Face face = ttslot->face;
422  FT_Error error;
423 
424 
425  if ( !slot )
426  return FT_THROW( Invalid_Slot_Handle );
427 
428  if ( !size )
429  return FT_THROW( Invalid_Size_Handle );
430 
431  if ( !face )
432  return FT_THROW( Invalid_Face_Handle );
433 
434 #ifdef FT_CONFIG_OPTION_INCREMENTAL
435  if ( glyph_index >= (FT_UInt)face->num_glyphs &&
436  !face->internal->incremental_interface )
437 #else
438  if ( glyph_index >= (FT_UInt)face->num_glyphs )
439 #endif
440  return FT_THROW( Invalid_Argument );
441 
442  if ( load_flags & FT_LOAD_NO_HINTING )
443  {
444  /* both FT_LOAD_NO_HINTING and FT_LOAD_NO_AUTOHINT */
445  /* are necessary to disable hinting for tricky fonts */
446 
447  if ( FT_IS_TRICKY( face ) )
448  load_flags &= ~FT_LOAD_NO_HINTING;
449 
450  if ( load_flags & FT_LOAD_NO_AUTOHINT )
451  load_flags |= FT_LOAD_NO_HINTING;
452  }
453 
454  if ( load_flags & ( FT_LOAD_NO_RECURSE | FT_LOAD_NO_SCALE ) )
455  {
456  load_flags |= FT_LOAD_NO_BITMAP | FT_LOAD_NO_SCALE;
457 
458  if ( !FT_IS_TRICKY( face ) )
459  load_flags |= FT_LOAD_NO_HINTING;
460  }
461 
462  /* use hinted metrics only if we load a glyph with hinting */
463  size->metrics = ( load_flags & FT_LOAD_NO_HINTING )
464  ? &ttsize->metrics
465  : &size->hinted_metrics;
466 
467  /* now load the glyph outline if necessary */
468  error = TT_Load_Glyph( size, slot, glyph_index, load_flags );
469 
470  /* force drop-out mode to 2 - irrelevant now */
471  /* slot->outline.dropout_mode = 2; */
472 
473  return error;
474  }
struct TT_SizeRec_ * TT_Size
Definition: tttypes.h:1631
int FT_Error
Definition: fttypes.h:300
#define error(str)
Definition: mkdosfs.c:1605
#define FT_LOAD_NO_HINTING
Definition: freetype.h:3010
#define FT_LOAD_NO_RECURSE
Definition: freetype.h:3018
#define FT_LOAD_NO_SCALE
Definition: freetype.h:3009
FT_GlyphSlot TT_GlyphSlot
Definition: ttobjs.h:54
#define FT_THROW(e)
Definition: ftdebug.h:213
GLsizeiptr size
Definition: glext.h:5919
#define FT_IS_TRICKY(face)
Definition: freetype.h:1474
FT_Size_Metrics metrics
Definition: freetype.h:1677
Definition: vfat.h:184
unsigned int FT_UInt
Definition: fttypes.h:231
#define FT_LOAD_NO_AUTOHINT
Definition: freetype.h:3022
#define FT_LOAD_NO_BITMAP
Definition: freetype.h:3012
TT_Load_Glyph(TT_Size size, TT_GlyphSlot glyph, FT_UInt glyph_index, FT_Int32 load_flags)
Definition: ttgload.c:2687
GLenum GLuint GLint GLenum face
Definition: glext.h:7025

◆ tt_property_get()

static FT_Error tt_property_get ( FT_Module  module,
const char property_name,
const void value 
)
static

Definition at line 120 of file ttdriver.c.

123  {
126 
127  FT_UInt interpreter_version = driver->interpreter_version;
128 
129 
130  if ( !ft_strcmp( property_name, "interpreter-version" ) )
131  {
132  FT_UInt* val = (FT_UInt*)value;
133 
134 
135  *val = interpreter_version;
136 
137  return error;
138  }
139 
140  FT_TRACE0(( "tt_property_get: missing property `%s'\n",
141  property_name ));
142  return FT_THROW( Missing_Property );
143  }
int FT_Error
Definition: fttypes.h:300
#define error(str)
Definition: mkdosfs.c:1605
typedefFT_BEGIN_HEADER struct TT_DriverRec_ * TT_Driver
Definition: ttobjs.h:39
return FT_Err_Ok
Definition: ftbbox.c:511
#define FT_THROW(e)
Definition: ftdebug.h:213
struct @1605::@1606 driver
GLuint GLfloat * val
Definition: glext.h:7180
#define FT_TRACE0(varformat)
Definition: ftdebug.h:157
unsigned int FT_UInt
Definition: fttypes.h:231
#define ft_strcmp
Definition: ftstdlib.h:86

◆ tt_property_set()

static FT_Error tt_property_set ( FT_Module  module,
const char property_name,
const void value,
FT_Bool  value_is_string 
)
static

Definition at line 63 of file ttdriver.c.

67  {
70 
71 #ifndef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
72  FT_UNUSED( value_is_string );
73 #endif
74 
75 
76  if ( !ft_strcmp( property_name, "interpreter-version" ) )
77  {
78  FT_UInt interpreter_version;
79 
80 
81 #ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
82  if ( value_is_string )
83  {
84  const char* s = (const char*)value;
85 
86 
87  interpreter_version = (FT_UInt)ft_strtol( s, NULL, 10 );
88  }
89  else
90 #endif
91  {
92  FT_UInt* iv = (FT_UInt*)value;
93 
94 
95  interpreter_version = *iv;
96  }
97 
98  if ( interpreter_version == TT_INTERPRETER_VERSION_35
100  || interpreter_version == TT_INTERPRETER_VERSION_38
101 #endif
103  || interpreter_version == TT_INTERPRETER_VERSION_40
104 #endif
105  )
106  driver->interpreter_version = interpreter_version;
107  else
108  error = FT_ERR( Unimplemented_Feature );
109 
110  return error;
111  }
112 
113  FT_TRACE0(( "tt_property_set: missing property `%s'\n",
114  property_name ));
115  return FT_THROW( Missing_Property );
116  }
int FT_Error
Definition: fttypes.h:300
#define error(str)
Definition: mkdosfs.c:1605
#define TT_INTERPRETER_VERSION_38
Definition: ftdriver.h:748
typedefFT_BEGIN_HEADER struct TT_DriverRec_ * TT_Driver
Definition: ttobjs.h:39
return FT_Err_Ok
Definition: ftbbox.c:511
#define FT_THROW(e)
Definition: ftdebug.h:213
#define TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
Definition: ftoption.h:887
#define TT_INTERPRETER_VERSION_35
Definition: ftdriver.h:747
struct @1605::@1606 driver
smooth NULL
Definition: ftsmooth.c:416
#define TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
Definition: ftoption.h:883
#define FT_ERR(e)
Definition: fttypes.h:586
#define FT_TRACE0(varformat)
Definition: ftdebug.h:157
GLdouble s
Definition: gl.h:2039
unsigned int FT_UInt
Definition: fttypes.h:231
#define TT_INTERPRETER_VERSION_40
Definition: ftdriver.h:749
#define FT_UNUSED(arg)
Definition: ftconfig.h:101
#define ft_strcmp
Definition: ftstdlib.h:86
#define ft_strtol
Definition: ftstdlib.h:145

◆ tt_size_request()

static FT_Error tt_size_request ( FT_Size  size,
FT_Size_Request  req 
)
static

Definition at line 329 of file ttdriver.c.

331  {
332  TT_Size ttsize = (TT_Size)size;
334 
335 
336 #ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
337 
338  if ( FT_HAS_FIXED_SIZES( size->face ) )
339  {
340  TT_Face ttface = (TT_Face)size->face;
341  SFNT_Service sfnt = (SFNT_Service)ttface->sfnt;
342  FT_ULong strike_index;
343 
344 
345  error = sfnt->set_sbit_strike( ttface, req, &strike_index );
346 
347  if ( error )
348  ttsize->strike_index = 0xFFFFFFFFUL;
349  else
350  return tt_size_select( size, strike_index );
351  }
352 
353 #endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
354 
355  FT_Request_Metrics( size->face, req );
356 
357  if ( FT_IS_SCALABLE( size->face ) )
358  {
359  error = tt_size_reset( ttsize, 0 );
360 
361 #ifdef TT_USE_BYTECODE_INTERPRETER
362  /* for the `MPS' bytecode instruction we need the point size */
363  if ( !error )
364  {
365  FT_UInt resolution =
366  ttsize->metrics->x_ppem > ttsize->metrics->y_ppem
367  ? req->horiResolution
368  : req->vertResolution;
369 
370 
371  /* if we don't have a resolution value, assume 72dpi */
372  if ( req->type == FT_SIZE_REQUEST_TYPE_SCALES ||
373  !resolution )
374  resolution = 72;
375 
376  ttsize->point_size = FT_MulDiv( ttsize->ttmetrics.ppem,
377  64 * 72,
378  resolution );
379  }
380 #endif
381  }
382 
383  return error;
384  }
struct TT_SizeRec_ * TT_Size
Definition: tttypes.h:1631
int FT_Error
Definition: fttypes.h:300
unsigned long FT_ULong
Definition: fttypes.h:253
#define error(str)
Definition: mkdosfs.c:1605
FT_UShort x_ppem
Definition: freetype.h:1640
SFNT_Service sfnt
Definition: ttdriver.c:206
return FT_Err_Ok
Definition: ftbbox.c:511
FT_UInt vertResolution
Definition: freetype.h:2623
struct TT_FaceRec_ * TT_Face
Definition: tttypes.h:973
FT_Request_Metrics(FT_Face face, FT_Size_Request req)
Definition: ftobjs.c:3028
FT_MulDiv(FT_Long a, FT_Long b, FT_Long c)
Definition: ftcalc.c:416
FT_Size_Request_Type type
Definition: freetype.h:2619
GLsizeiptr size
Definition: glext.h:5919
#define FT_HAS_FIXED_SIZES(face)
Definition: freetype.h:1361
TT_Size_Metrics ttmetrics
Definition: ttobjs.h:284
TT_Set_SBit_Strike_Func set_sbit_strike
Definition: sfnt.h:616
FT_Size_Metrics * metrics
Definition: ttobjs.h:281
void * sfnt
Definition: tttypes.h:1428
FT_UInt horiResolution
Definition: freetype.h:2622
FT_ULong strike_index
Definition: ttobjs.h:286
unsigned int FT_UInt
Definition: fttypes.h:231
FT_UShort y_ppem
Definition: freetype.h:1641
tt_size_reset(TT_Size size, FT_Bool only_height)
Definition: ttobjs.c:1251
FT_UShort ppem
Definition: ttobjs.h:257
#define FT_IS_SCALABLE(face)
Definition: freetype.h:1312
#define UL
Definition: tui.h:83

Variable Documentation

◆ FT_FONT_FORMAT_TRUETYPE

FT_FONT_FORMAT_TRUETYPE

Definition at line 560 of file ttdriver.c.

◆ FT_SERVICE_ID_FONT_FORMAT

FT_SERVICE_ID_FONT_FORMAT

Definition at line 560 of file ttdriver.c.

◆ FT_SERVICE_ID_PROPERTIES

FT_SERVICE_ID_PROPERTIES

Definition at line 560 of file ttdriver.c.

◆ FT_SERVICE_ID_TRUETYPE_ENGINE

FT_SERVICE_ID_TRUETYPE_ENGINE

Definition at line 560 of file ttdriver.c.

Referenced by FT_Get_TrueType_Engine_Type().

◆ FT_SERVICE_ID_TT_GLYF

FT_SERVICE_ID_TT_GLYF

Definition at line 560 of file ttdriver.c.

◆ kerning

Initial value:
{
TT_Face face = (TT_Face)ttface
struct TT_FaceRec_ * TT_Face
Definition: tttypes.h:973
GLenum GLuint GLint GLenum face
Definition: glext.h:7025

Definition at line 204 of file ttdriver.c.

Referenced by cff_get_kerning(), Get_Kerning(), pfr_face_get_kerning(), T1_Get_Kerning(), T1_Get_Track_Kerning(), and test_ITextFont().

◆ left_glyph

FT_UInt left_glyph

Definition at line 201 of file ttdriver.c.

Referenced by cff_get_kerning(), FT_Get_Kerning(), Get_Kerning(), and tt_face_get_kerning().

◆ right_glyph

FT_UInt FT_UInt right_glyph

Definition at line 201 of file ttdriver.c.

Referenced by cff_get_kerning(), FT_Get_Kerning(), Get_Kerning(), and tt_face_get_kerning().

◆ sfnt

◆ tt_service_truetype_engine

& tt_service_truetype_engine
static
Initial value:

Definition at line 525 of file ttdriver.c.

◆ TT_SERVICE_TRUETYPE_GLYF_GET

& TT_SERVICE_TRUETYPE_GLYF_GET

Definition at line 560 of file ttdriver.c.

◆ x

kerning x = 0

Definition at line 209 of file ttdriver.c.

◆ y

kerning y = 0

Definition at line 210 of file ttdriver.c.