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Add new service for inter-module calls.

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NOTE: Does not compile!

This is to allow CFF functions moved to `psaux' to call functions
declared in `src/cff/cffload.h'.

* include/freetype/internal/services/svcfftl.h: New file, setting up
a `CFFLoad' service.

* include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC10,
FT_DEFINE_SERVICEDESCREC): New macros.
(FT_SERVICE_CFF_TABLE_LOAD_H): New macro.

* src/cff/cffdrivr.c, src/cff/cffpic.h: Register the new service.

* src/cff/cfftypes.h (CFF_FontRec), src/psaux/cf2font.h
(CF2_FontRec): Add service interface.

* src/cff/cffobjs.c, src/psaux/cf2font.c, src/psaux/cf2ft.c,
src/psaux/cf2intrp.c, src/psaux/cffdecode.c: Use the new service.
GSoC-2017-kushal
Ewald Hew 7 years ago committed by Werner Lemberg
parent 9578e07a83
commit edacde60e3
12 changed files with 292 additions and 32 deletions
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  1. 24
      ChangeLog
  2. 90
      include/freetype/internal/ftserv.h
  3. 94
      include/freetype/internal/services/svcfftl.h
  4. 36
      src/cff/cffdrivr.c
  5. 4
      src/cff/cffobjs.c
  6. 5
      src/cff/cffpic.h
  7. 3
      src/cff/cfftypes.h
  8. 17
      src/psaux/cf2font.c
  9. 5
      src/psaux/cf2font.h
  10. 2
      src/psaux/cf2ft.c
  11. 19
      src/psaux/cf2intrp.c
  12. 25
      src/psaux/cffdecode.c

24
ChangeLog
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@ -1,3 +1,27 @@
2017-09-24 Ewald Hew <ewaldhew@gmail.com>
[psaux, cff] Add new service for inter-module calls.
NOTE: Does not compile!
This is to allow CFF functions moved to `psaux' to call functions
declared in `src/cff/cffload.h'.
* include/freetype/internal/services/svcfftl.h: New file, setting up
a `CFFLoad' service.
* include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC10,
FT_DEFINE_SERVICEDESCREC): New macros.
(FT_SERVICE_CFF_TABLE_LOAD_H): New macro.
* src/cff/cffdrivr.c, src/cff/cffpic.h: Register the new service.
* src/cff/cfftypes.h (CFF_FontRec), src/psaux/cf2font.h
(CF2_FontRec): Add service interface.
* src/cff/cffobjs.c, src/psaux/cf2font.c, src/psaux/cf2ft.c,
src/psaux/cf2intrp.c, src/psaux/cffdecode.c: Use the new service.
2017-09-24 Ewald Hew <ewaldhew@gmail.com>
[psaux, cff] Add callbacks for inter-module calls.

90
include/freetype/internal/ftserv.h
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@ -330,6 +330,32 @@ FT_BEGIN_HEADER
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC10( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8, \
serv_id_9, serv_data_9, \
serv_id_10, serv_data_10) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ serv_id_9, serv_data_9 }, \
{ serv_id_10, serv_data_10 }, \
{ NULL, NULL } \
};
#else /* FT_CONFIG_OPTION_PIC */
#define FT_DEFINE_SERVICEDESCREC1( class_, \
@ -755,6 +781,68 @@ FT_BEGIN_HEADER
return FT_Err_Ok; \
}
#define FT_DEFINE_SERVICEDESCREC10( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8, \
serv_id_9, serv_data_9, \
serv_id_10, serv_data_10 ) \
void \
FT_Destroy_Class_ ## class_( FT_Library library, \
FT_ServiceDescRec* clazz ) \
{ \
FT_Memory memory = library->memory; \
\
\
if ( clazz ) \
FT_FREE( clazz ); \
} \
\
FT_Error \
FT_Create_Class_ ## class_( FT_Library library, \
FT_ServiceDescRec** output_class) \
{ \
FT_ServiceDescRec* clazz = NULL; \
FT_Error error; \
FT_Memory memory = library->memory; \
\
\
if ( FT_ALLOC( clazz, sizeof ( *clazz ) * 11 ) ) \
return error; \
\
clazz[0].serv_id = serv_id_1; \
clazz[0].serv_data = serv_data_1; \
clazz[1].serv_id = serv_id_2; \
clazz[1].serv_data = serv_data_2; \
clazz[2].serv_id = serv_id_3; \
clazz[2].serv_data = serv_data_3; \
clazz[3].serv_id = serv_id_4; \
clazz[3].serv_data = serv_data_4; \
clazz[4].serv_id = serv_id_5; \
clazz[4].serv_data = serv_data_5; \
clazz[5].serv_id = serv_id_6; \
clazz[5].serv_data = serv_data_6; \
clazz[6].serv_id = serv_id_7; \
clazz[6].serv_data = serv_data_7; \
clazz[7].serv_id = serv_id_8; \
clazz[7].serv_data = serv_data_8; \
clazz[8].serv_id = serv_id_9; \
clazz[8].serv_data = serv_data_9; \
clazz[9].serv_id = serv_id_10; \
clazz[9].serv_data = serv_data_10; \
clazz[10].serv_id = NULL; \
clazz[10].serv_data = NULL; \
\
*output_class = clazz; \
\
return FT_Err_Ok; \
}
#endif /* FT_CONFIG_OPTION_PIC */
@ -916,7 +1004,7 @@ FT_BEGIN_HEADER
#define FT_SERVICE_WINFNT_H <freetype/internal/services/svwinfnt.h>
#define FT_SERVICE_FONT_FORMAT_H <freetype/internal/services/svfntfmt.h>
#define FT_SERVICE_TRUETYPE_GLYF_H <freetype/internal/services/svttglyf.h>
#define FT_SERVICE_CFF_TABLE_LOAD_H <freetype/internal/services/svcfftl.h>
/* */
FT_END_HEADER

94
include/freetype/internal/services/svcfftl.h
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@ -0,0 +1,94 @@
#ifndef SVCFFTL_H_
#define SVCFFTL_H_
#include FT_INTERNAL_SERVICE_H
FT_BEGIN_HEADER
#define FT_SERVICE_ID_CFF_LOAD "cff-load"
typedef FT_UShort
(*FT_Get_Standard_Encoding_Func)( FT_UInt charcode );
typedef FT_Error
(*FT_Load_Private_Dict_Func)( CFF_Font font,
CFF_SubFont subfont,
FT_UInt lenNDV,
FT_Fixed* NDV );
typedef FT_Byte
(*FT_FD_Select_Get_Func)( CFF_FDSelect fdselect,
FT_UInt glyph_index );
typedef FT_Bool
(*FT_Blend_Check_Vector_Func)( CFF_Blend blend,
FT_UInt vsindex,
FT_UInt lenNDV,
FT_Fixed* NDV );
typedef FT_Error
(*FT_Blend_Build_Vector_Func)( CFF_Blend blend,
FT_UInt vsindex,
FT_UInt lenNDV,
FT_Fixed* NDV );
FT_DEFINE_SERVICE( CFFLoad )
{
FT_Get_Standard_Encoding_Func get_standard_encoding;
FT_Load_Private_Dict_Func load_private_dict;
FT_FD_Select_Get_Func fd_select_get;
FT_Blend_Check_Vector_Func blend_check_vector;
FT_Blend_Build_Vector_Func blend_build_vector;
};
#ifndef FT_CONFIG_OPTION_PIC
#define FT_DEFINE_SERVICE_CFFLOADREC( class_, \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ ) \
static const FT_Service_CFFLoadRec class_ = \
{ \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ \
};
#else /* FT_CONFIG_OPTION_PIC */
#define FT_DEFINE_SERVICE_CFFLOADREC( class_, \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ ) \
void \
FT_Init_Class_ ## class_( FT_Service_CFFLoadRec* clazz ) \
{ \
clazz->get_standard_encoding = get_standard_encoding_; \
clazz->load_private_dict = load_private_dict_; \
clazz->fd_select_get = fd_select_get_; \
clazz->blend_check_vector = blend_check_vector_; \
clazz->blend_build_vector = blend_build_vector_; \
}
#endif /* FT_CONFIG_OPTION_PIC */
FT_END_HEADER
#endif
/* END */

36
src/cff/cffdrivr.c
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@ -25,6 +25,7 @@
#include FT_SERVICE_POSTSCRIPT_INFO_H
#include FT_SERVICE_POSTSCRIPT_NAME_H
#include FT_SERVICE_TT_CMAP_H
#include FT_SERVICE_CFF_TABLE_LOAD_H
#include "cffdrivr.h"
#include "cffgload.h"
@ -1088,6 +1089,21 @@
#endif
/*
* CFFLOAD SERVICE
*
*/
FT_DEFINE_SERVICE_CFFLOADREC(
cff_service_cff_load,
(FT_Get_Standard_Encoding_Func) cff_get_standard_encoding,
(FT_Load_Private_Dict_Func) cff_load_private_dict,
(FT_FD_Select_Get_Func) cff_fd_select_get,
(FT_Blend_Check_Vector_Func) cff_blend_check_vector,
(FT_Blend_Build_Vector_Func) cff_blend_build_vector
)
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
@ -1102,7 +1118,7 @@
#if !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES && \
defined TT_CONFIG_OPTION_GX_VAR_SUPPORT
FT_DEFINE_SERVICEDESCREC9(
FT_DEFINE_SERVICEDESCREC10(
cff_services,
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
@ -1113,10 +1129,11 @@
FT_SERVICE_ID_GLYPH_DICT, &CFF_SERVICE_GLYPH_DICT_GET,
FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET,
FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET,
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET,
FT_SERVICE_ID_CFF_LOAD, &CFF_SERVICE_CFF_LOAD_GET
)
#elif !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES
FT_DEFINE_SERVICEDESCREC7(
FT_DEFINE_SERVICEDESCREC8(
cff_services,
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
@ -1125,10 +1142,11 @@
FT_SERVICE_ID_GLYPH_DICT, &CFF_SERVICE_GLYPH_DICT_GET,
FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET,
FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET,
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET,
FT_SERVICE_ID_CFF_LOAD, &CFF_SERVICE_CFF_LOAD_GET
)
#elif defined TT_CONFIG_OPTION_GX_VAR_SUPPORT
FT_DEFINE_SERVICEDESCREC8(
FT_DEFINE_SERVICEDESCREC9(
cff_services,
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
@ -1138,10 +1156,11 @@
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET,
FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET,
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET,
FT_SERVICE_ID_CFF_LOAD, &CFF_SERVICE_CFF_LOAD_GET
)
#else
FT_DEFINE_SERVICEDESCREC6(
FT_DEFINE_SERVICEDESCREC7(
cff_services,
FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF,
@ -1149,7 +1168,8 @@
FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET,
FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET,
FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET,
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET
FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET,
FT_SERVICE_ID_CFF_LOAD, &CFF_SERVICE_CFF_LOAD_GET
)
#endif

4
src/cff/cffobjs.c
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@ -496,6 +496,7 @@
FT_Service_PsCMaps psnames;
PSHinter_Service pshinter;
PSAux_Service psaux;
FT_Service_CFFLoad cffload;
FT_Bool pure_cff = 1;
FT_Bool cff2 = 0;
FT_Bool sfnt_format = 0;
@ -526,6 +527,8 @@
}
face->psaux = psaux;
FT_FACE_FIND_GLOBAL_SERVICE( face, cffload, CFF_LOAD );
FT_TRACE2(( "CFF driver\n" ));
/* create input stream from resource */
@ -627,6 +630,7 @@
cff->pshinter = pshinter;
cff->psnames = psnames;
cff->cffload = cffload;
cffface->face_index = face_index & 0xFFFF;

5
src/cff/cffpic.h
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@ -22,7 +22,6 @@
#include FT_INTERNAL_PIC_H
#ifndef FT_CONFIG_OPTION_PIC
#define CFF_SERVICE_PS_INFO_GET cff_service_ps_info
@ -34,6 +33,7 @@
#define CFF_SERVICES_GET cff_services
#define CFF_SERVICE_MULTI_MASTERS_GET cff_service_multi_masters
#define CFF_SERVICE_METRICS_VAR_GET cff_service_metrics_variations
#define CFF_SERVICE_CFF_LOAD_GET cff_service_cff_load
#define CFF_CMAP_ENCODING_CLASS_REC_GET cff_cmap_encoding_class_rec
#define CFF_CMAP_UNICODE_CLASS_REC_GET cff_cmap_unicode_class_rec
#define CFF_FIELD_HANDLERS_GET cff_field_handlers
@ -65,6 +65,7 @@ FT_BEGIN_HEADER
FT_Service_PropertiesRec cff_service_properties;
FT_Service_MultiMastersRec cff_service_multi_masters;
FT_Service_MetricsVariationsRec cff_service_metrics_variations;
FT_Service_CFFLoadRec cff_service_cff_load;
FT_CMap_ClassRec cff_cmap_encoding_class_rec;
FT_CMap_ClassRec cff_cmap_unicode_class_rec;
@ -92,6 +93,8 @@ FT_BEGIN_HEADER
( GET_PIC( library )->cff_service_multi_masters )
#define CFF_SERVICE_METRICS_VAR_GET \
( GET_PIC( library )->cff_service_metrics_variations )
#define CFF_SERVICE_CFF_LOAD_GET \
( GET_PIC( library )->cff_service_cff_load )
#define CFF_CMAP_ENCODING_CLASS_REC_GET \
( GET_PIC( library )->cff_cmap_encoding_class_rec )
#define CFF_CMAP_UNICODE_CLASS_REC_GET \

3
src/cff/cfftypes.h
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@ -381,6 +381,9 @@ FT_BEGIN_HEADER
/* interface to Postscript Names service */
FT_Service_PsCMaps psnames;
/* interface to CFFLoad service */
const void* cffload;
/* since version 2.3.0 */
PS_FontInfoRec* font_info; /* font info dictionary */

17
src/psaux/cf2font.c
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@ -260,6 +260,7 @@
CF2_UInt lenNormalizedV = 0;
FT_Fixed* normalizedV = NULL;
FT_Service_CFFLoad cffload = (FT_Service_CFFLoad)font->cffload;
/* clear previous error */
font->error = FT_Err_Ok;
@ -287,16 +288,16 @@
if ( font->error )
return;
if ( cff_blend_check_vector( &subFont->blend,
subFont->private_dict.vsindex,
lenNormalizedV,
normalizedV ) )
if ( cffload->blend_check_vector( &subFont->blend,
subFont->private_dict.vsindex,
lenNormalizedV,
normalizedV ) )
{
/* blend has changed, reparse */
cff_load_private_dict( decoder->cff,
subFont,
lenNormalizedV,
normalizedV );
cffload->load_private_dict( decoder->cff,
subFont,
lenNormalizedV,
normalizedV );
needExtraSetup = TRUE;
}
#endif

5
src/psaux/cf2font.h
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@ -40,9 +40,10 @@
#define CF2FONT_H_
#include FT_SERVICE_CFF_TABLE_LOAD_H
#include "cf2ft.h"
#include "cf2blues.h"
#include "cffload.h"
FT_BEGIN_HEADER
@ -111,6 +112,8 @@ FT_BEGIN_HEADER
/* counterclockwise winding */
CF2_BluesRec blues; /* computed zone data */
FT_Service_CFFLoad cffload; /* Pointer to cff functions */
};

2
src/psaux/cf2ft.c
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@ -42,6 +42,7 @@
#include "cf2font.h"
#include "cf2error.h"
#include FT_SERVICE_CFF_TABLE_LOAD_H
#define CF2_MAX_SIZE cf2_intToFixed( 2000 ) /* max ppem */
@ -324,6 +325,7 @@
font = (CF2_Font)decoder->cff->cf2_instance.data;
font->memory = memory;
font->cffload = (FT_Service_CFFLoad)decoder->cff->cffload;
/* initialize a client outline, to be shared by each glyph rendered */
cf2_outline_init( &font->outline, font->memory, &font->error );

19
src/psaux/cf2intrp.c
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@ -38,6 +38,7 @@
#include "cf2ft.h"
#include FT_INTERNAL_DEBUG_H
#include FT_SERVICE_CFF_TABLE_LOAD_H
#include "cf2glue.h"
#include "cf2font.h"
@ -47,8 +48,6 @@
#include "cf2error.h"
#include "cffload.h"
/*************************************************************************/
/* */
@ -689,15 +688,15 @@
}
/* check cached blend vector */
if ( cff_blend_check_vector( &font->blend,
font->vsindex,
font->lenNDV,
font->NDV ) )
if ( font->cffload->blend_check_vector( &font->blend,
font->vsindex,
font->lenNDV,
font->NDV ) )
{
lastError = cff_blend_build_vector( &font->blend,
font->vsindex,
font->lenNDV,
font->NDV );
lastError = font->cffload->blend_build_vector( &font->blend,
font->vsindex,
font->lenNDV,
font->NDV );
if ( lastError )
goto exit;
}

25
src/psaux/cffdecode.c
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@ -1,6 +1,8 @@
#include <ft2build.h>
#include FT_INTERNAL_SERVICE_H
#include FT_SERVICE_CFF_TABLE_LOAD_H
#include "cffdecode.h"
#include "psobjs.h"
@ -390,7 +392,7 @@
{
FT_UInt n;
FT_UShort glyph_sid;
FT_Service_CFFLoad cffload;
/* CID-keyed fonts don't have glyph names */
if ( !cff->charset.sids )
@ -400,8 +402,24 @@
if ( charcode < 0 || charcode > 255 )
return -1;
#if 0
/* retrieve cffload from list of current modules */
FT_Service_CFFLoad cffload;
{
FT_FACE_FIND_GLOBAL_SERVICE( face, cffload, CFF_LOAD );
if ( !cffload )
{
FT_ERROR(( "cff_lookup_glyph_by_stdcharcode:"
" the `cffload' module is not available\n" ));
return FT_THROW( Unimplemented_Feature );
}
}
#endif
cffload = (FT_Service_CFFLoad)cff->cffload;
/* Get code to SID mapping from `cff_standard_encoding'. */
glyph_sid = cff_get_standard_encoding( (FT_UInt)charcode );
glyph_sid = cffload->get_standard_encoding( (FT_UInt)charcode );
for ( n = 0; n < cff->num_glyphs; n++ )
{
@ -2271,11 +2289,12 @@
CFF_SubFont sub = &cff->top_font;
FT_Error error = FT_Err_Ok;
FT_Service_CFFLoad cffload = (FT_Service_CFFLoad)cff->cffload;
/* manage CID fonts */
if ( cff->num_subfonts )
{
FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, glyph_index );
FT_Byte fd_index = cffload->fd_select_get( &cff->fd_select, glyph_index );
if ( fd_index >= cff->num_subfonts )

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