sfdriver.c File Reference

#include <freetype/internal/ftdebug.h>
#include <freetype/internal/sfnt.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/ttnameid.h>
#include "sfdriver.h"
#include "ttload.h"
#include "sfobjs.h"
#include "sferrors.h"
#include "ttcmap.h"
#include "ttkern.h"
#include "ttmtx.h"
#include <freetype/internal/services/svgldict.h>
#include <freetype/internal/services/svpostnm.h>
#include <freetype/internal/services/svsfnt.h>
#include <freetype/internal/services/svttcmap.h>

Include dependency graph for sfdriver.c:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros
#define	FT_COMPONENT   sfdriver
#define	IS_WIN(n)
#define	IS_APPLE(n)
#define	PUT_EMBEDDED_BITMAPS(a)   NULL
#define	PUT_COLOR_LAYERS(a)   NULL
#define	PUT_PS_NAMES(a)   NULL

Typedefs
typedef int(*	char_type_func) (int c)

Functions
static void *	get_sfnt_table (TT_Face face, FT_Sfnt_Tag tag)
static FT_Error	sfnt_table_info (TT_Face face, FT_UInt idx, FT_ULong *tag, FT_ULong *offset, FT_ULong *length)
	FT_DEFINE_SERVICE_SFNT_TABLEREC (sfnt_service_sfnt_table,(FT_SFNT_TableLoadFunc) tt_face_load_any,(FT_SFNT_TableGetFunc) get_sfnt_table,(FT_SFNT_TableInfoFunc) sfnt_table_info) static const unsigned char sfnt_ps_map[16]
static int	sfnt_is_postscript (int c)
static char *	get_win_string (FT_Memory memory, FT_Stream stream, TT_Name entry, char_type_func char_type, FT_Bool report_invalid_characters)
static char *	get_apple_string (FT_Memory memory, FT_Stream stream, TT_Name entry, char_type_func char_type, FT_Bool report_invalid_characters)
static FT_Bool	sfnt_get_name_id (TT_Face face, FT_UShort id, FT_Int *win, FT_Int *apple)
static const char *	sfnt_get_ps_name (TT_Face face)
	FT_DEFINE_SERVICE_PSFONTNAMEREC (sfnt_service_ps_name,(FT_PsName_GetFunc) sfnt_get_ps_name) FT_DEFINE_SERVICE_TTCMAPSREC(tt_service_get_cmap_info
TT_CMap_Info_GetFunc tt_get_cmap_info	FT_DEFINE_SERVICEDESCREC3 (sfnt_services, FT_SERVICE_ID_SFNT_TABLE, &sfnt_service_sfnt_table, FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &sfnt_service_ps_name, FT_SERVICE_ID_TT_CMAP, &tt_service_get_cmap_info) sfnt_get_interface(FT_Module module
return	ft_service_list_lookup (sfnt_services, module_interface)

Variables
TT_CMap_Info_GetFunc tt_get_cmap_info const char *	module_interface

Macro Definition Documentation

FT_COMPONENT

#define FT_COMPONENT   sfdriver

Definition at line 70 of file sfdriver.c.

IS_APPLE

#define IS_APPLE

(

n

)

Value:

                         ( (n)->platformID == 1 && \
                         (n)->encodingID == 0 )

Definition at line 484 of file sfdriver.c.

IS_WIN

#define IS_WIN

(

n

)

Value:

                       ( (n)->platformID == 3                             && \
                       ( (n)->encodingID == 1 || (n)->encodingID == 0 ) )

Definition at line 481 of file sfdriver.c.

PUT_COLOR_LAYERS

#define PUT_COLOR_LAYERS

(

a

)

NULL

Definition at line 1213 of file sfdriver.c.

PUT_EMBEDDED_BITMAPS

#define PUT_EMBEDDED_BITMAPS

(

a

)

NULL

Definition at line 1207 of file sfdriver.c.

PUT_PS_NAMES

#define PUT_PS_NAMES

(

a

)

NULL

Definition at line 1219 of file sfdriver.c.

Typedef Documentation

char_type_func

typedef int(* char_type_func) (int c)

Definition at line 477 of file sfdriver.c.

Function Documentation

FT_DEFINE_SERVICE_PSFONTNAMEREC()

FT_DEFINE_SERVICE_PSFONTNAMEREC	(	sfnt_service_ps_name	,
		(FT_PsName_GetFunc)	sfnt_get_ps_name
	)

FT_DEFINE_SERVICE_SFNT_TABLEREC()

FT_DEFINE_SERVICE_SFNT_TABLEREC	(	sfnt_service_sfnt_table	,
		(FT_SFNT_TableLoadFunc)	tt_face_load_any,
		(FT_SFNT_TableGetFunc)	get_sfnt_table,
		(FT_SFNT_TableInfoFunc)	sfnt_table_info
	)		const

FT_DEFINE_SERVICEDESCREC3()

TT_CMap_Info_GetFunc tt_get_cmap_info FT_DEFINE_SERVICEDESCREC3	(	sfnt_services	,
		FT_SERVICE_ID_SFNT_TABLE	,
		&	sfnt_service_sfnt_table,
		FT_SERVICE_ID_POSTSCRIPT_FONT_NAME	,
		&	sfnt_service_ps_name,
		FT_SERVICE_ID_TT_CMAP	,
		&	tt_service_get_cmap_info
	)

ft_service_list_lookup()

return ft_service_list_lookup	(	sfnt_services	,
		module_interface
	)

get_apple_string()

static char * get_apple_string ( FT_Memory  memory, FT_Stream  stream, TT_Name  entry, char_type_func  char_type, FT_Bool  report_invalid_characters  )

static

Definition at line 547 of file sfdriver.c.

  {
    FT_Error  error = FT_Err_Ok;
 
    char*       result = NULL;
    FT_String*  r;
    FT_Char*    p;
    FT_UInt     len;
 
    FT_UNUSED( error );
 
 
    if ( FT_ALLOC( result, entry->stringLength + 1 ) )
      return NULL;
 
    if ( FT_STREAM_SEEK( entry->stringOffset ) ||
         FT_FRAME_ENTER( entry->stringLength ) )
      goto get_apple_string_error;
 
    r = (FT_String*)result;
    p = (FT_Char*)stream->cursor;
 
    for ( len = entry->stringLength; len > 0; len--, p++ )
    {
      if ( char_type( *p ) )
        *r++ = *p;
      else
      {
        if ( report_invalid_characters )
          FT_TRACE0(( "get_apple_string:"
                      " Character `%c' (0x%X) invalid in PS name string\n",
                      *p, *p ));
        break;
      }
    }
    if ( !len )
      *r = '\0';
 
    FT_FRAME_EXIT();
 
    if ( !len )
      return result;
 
  get_apple_string_error:
    FT_FREE( result );
 
    entry->stringOffset = 0;
    entry->stringLength = 0;
    FT_FREE( entry->string );
 
    return NULL;
  }

Referenced by sfnt_get_ps_name().

get_sfnt_table()

static void * get_sfnt_table ( TT_Face  face, FT_Sfnt_Tag  tag  )

static

Definition at line 79 of file sfdriver.c.

  {
    void*  table;
 
 
    switch ( tag )
    {
    case FT_SFNT_HEAD:
      table = &face->header;
      break;
 
    case FT_SFNT_HHEA:
      table = &face->horizontal;
      break;
 
    case FT_SFNT_VHEA:
      table = face->vertical_info ? &face->vertical : NULL;
      break;
 
    case FT_SFNT_OS2:
      table = ( face->os2.version == 0xFFFFU ) ? NULL : &face->os2;
      break;
 
    case FT_SFNT_POST:
      table = &face->postscript;
      break;
 
    case FT_SFNT_MAXP:
      table = &face->max_profile;
      break;
 
    case FT_SFNT_PCLT:
      table = face->pclt.Version ? &face->pclt : NULL;
      break;
 
    default:
      table = NULL;
    }
 
    return table;
  }

get_win_string()

static char * get_win_string ( FT_Memory  memory, FT_Stream  stream, TT_Name  entry, char_type_func  char_type, FT_Bool  report_invalid_characters  )

static

Definition at line 488 of file sfdriver.c.

  {
    FT_Error  error = FT_Err_Ok;
 
    char*       result = NULL;
    FT_String*  r;
    FT_Char*    p;
    FT_UInt     len;
 
    FT_UNUSED( error );
 
 
    if ( FT_ALLOC( result, entry->stringLength / 2 + 1 ) )
      return NULL;
 
    if ( FT_STREAM_SEEK( entry->stringOffset ) ||
         FT_FRAME_ENTER( entry->stringLength ) )
      goto get_win_string_error;
 
    r = (FT_String*)result;
    p = (FT_Char*)stream->cursor;
 
    for ( len = entry->stringLength / 2; len > 0; len--, p += 2 )
    {
      if ( p[0] == 0 && char_type( p[1] ) )
        *r++ = p[1];
      else
      {
        if ( report_invalid_characters )
          FT_TRACE0(( "get_win_string:"
                      " Character 0x%X invalid in PS name string\n",
                      ((unsigned)p[0])*256 + (unsigned)p[1] ));
        break;
      }
    }
    if ( !len )
      *r = '\0';
 
    FT_FRAME_EXIT();
 
    if ( !len )
      return result;
 
  get_win_string_error:
    FT_FREE( result );
 
    entry->stringLength = 0;
    entry->stringOffset = 0;
    FT_FREE( entry->string );
 
    return NULL;
  }

Referenced by sfnt_get_ps_name().

sfnt_get_name_id()

static FT_Bool sfnt_get_name_id ( TT_Face  face, FT_UShort  id, FT_Int *  win, FT_Int *  apple  )

static

Definition at line 606 of file sfdriver.c.

  {
    FT_Int  n;
 
 
    *win   = -1;
    *apple = -1;
 
    for ( n = 0; n < face->num_names; n++ )
    {
      TT_Name  name = face->name_table.names + n;
 
 
      if ( name->nameID == id && name->stringLength > 0 )
      {
        if ( IS_WIN( name ) && ( name->languageID == 0x409 || *win == -1 ) )
          *win = n;
 
        if ( IS_APPLE( name ) && ( name->languageID == 0 || *apple == -1 ) )
          *apple = n;
      }
    }
 
    return ( *win >= 0 ) || ( *apple >= 0 );
  }

Referenced by sfnt_get_ps_name().

sfnt_get_ps_name()

static const char * sfnt_get_ps_name ( TT_Face  face )

static

Definition at line 1044 of file sfdriver.c.

  {
    FT_Int       found, win, apple;
    const char*  result = NULL;
 
 
    if ( face->postscript_name )
      return face->postscript_name;
 
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
    if ( face->blend                                 &&
         ( FT_IS_NAMED_INSTANCE( FT_FACE( face ) ) ||
           FT_IS_VARIATION( FT_FACE( face ) )      ) )
    {
      face->postscript_name = sfnt_get_var_ps_name( face );
      return face->postscript_name;
    }
#endif
 
    /* scan the name table to see whether we have a Postscript name here, */
    /* either in Macintosh or Windows platform encodings                  */
    found = sfnt_get_name_id( face, TT_NAME_ID_PS_NAME, &win, &apple );
    if ( !found )
      return NULL;
 
    /* prefer Windows entries over Apple */
    if ( win != -1 )
      result = get_win_string( face->root.memory,
                               face->name_table.stream,
                               face->name_table.names + win,
                               sfnt_is_postscript,
                               1 );
    if ( !result && apple != -1 )
      result = get_apple_string( face->root.memory,
                                 face->name_table.stream,
                                 face->name_table.names + apple,
                                 sfnt_is_postscript,
                                 1 );
 
    face->postscript_name = result;
 
    return result;
  }

sfnt_is_postscript()

static int sfnt_is_postscript ( int  c )

static

Definition at line 248 of file sfdriver.c.

  {
    unsigned int  cc;
 
 
    if ( c < 0 || c >= 0x80 )
      return 0;
 
    cc = (unsigned int)c;
 
    return sfnt_ps_map[cc >> 3] & ( 1 << ( cc & 0x07 ) );
  }

Referenced by sfnt_get_ps_name().

sfnt_table_info()

static FT_Error sfnt_table_info ( TT_Face  face, FT_UInt  idx, FT_ULong *  tag, FT_ULong *  offset, FT_ULong *  length  )

static

Definition at line 124 of file sfdriver.c.

  {
    if ( !offset || !length )
      return FT_THROW( Invalid_Argument );
 
    if ( !tag )
      *length = face->num_tables;
    else
    {
      if ( idx >= face->num_tables )
        return FT_THROW( Table_Missing );
 
      *tag    = face->dir_tables[idx].Tag;
      *offset = face->dir_tables[idx].Offset;
      *length = face->dir_tables[idx].Length;
    }
 
    return FT_Err_Ok;
  }

Variable Documentation

module_interface

TT_CMap_Info_GetFunc tt_get_cmap_info const char* module_interface

Initial value:

{
    FT_UNUSED( module )

Definition at line 1196 of file sfdriver.c.

Referenced by af_get_interface(), and cff_get_interface().