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Make `FT_Set_Named_Instance' work. 

* src/cff/cffdrivr.c (cff_set_instance): New function.
(cff_service_multi_masters): Register it.

* src/truetype/ttgxvar.c (TT_Set_Named_Instance): New function.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Register
it.

* src/type1/t1load.c (T1_Reset_MM_Blend): New function.
* src/type1/t1load.h: Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Register it.
This commit is contained in:
Werner Lemberg 2017-10-07 12:57:11 +02:00
parent 8c92f7622c
commit e9ef538a4f
8 changed files with 134 additions and 3 deletions
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16
ChangeLog
View File

@ -1,3 +1,19 @@
2017-10-07 Werner Lemberg <wl@gnu.org>
Make `FT_Set_Named_Instance' work.
* src/cff/cffdrivr.c (cff_set_instance): New function.
(cff_service_multi_masters): Register it.
* src/truetype/ttgxvar.c (TT_Set_Named_Instance): New function.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Register
it.
* src/type1/t1load.c (T1_Reset_MM_Blend): New function.
* src/type1/t1load.h: Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Register it.
2017-10-07 Werner Lemberg <wl@gnu.org>
Make `FT_FACE_FLAG_VARIATION' work.

13
src/cff/cffdrivr.c
View File

@ -1109,6 +1109,17 @@
}
static FT_Error
cff_set_instance( CFF_Face face,
FT_UInt instance_index )
{
FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm;
return mm->set_instance( FT_FACE( face ), instance_index );
}
FT_DEFINE_SERVICE_MULTIMASTERSREC(
cff_service_multi_masters,
@ -1119,7 +1130,7 @@
(FT_Get_MM_Var_Func) cff_get_mm_var, /* get_mm_var */
(FT_Set_Var_Design_Func)cff_set_var_design, /* set_var_design */
(FT_Get_Var_Design_Func)cff_get_var_design, /* get_var_design */
(FT_Set_Instance_Func) NULL, /* set_instance */
(FT_Set_Instance_Func) cff_set_instance, /* set_instance */
(FT_Get_Var_Blend_Func) cff_get_var_blend, /* get_var_blend */
(FT_Done_Blend_Func) cff_done_blend /* done_blend */

2
src/truetype/ttdriver.c
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@ -498,7 +498,7 @@
(FT_Get_MM_Var_Func) TT_Get_MM_Var, /* get_mm_var */
(FT_Set_Var_Design_Func)TT_Set_Var_Design, /* set_var_design */
(FT_Get_Var_Design_Func)TT_Get_Var_Design, /* get_var_design */
(FT_Set_Instance_Func) NULL, /* set_instance */
(FT_Set_Instance_Func) TT_Set_Named_Instance, /* set_instance */
(FT_Get_Var_Blend_Func) tt_get_var_blend, /* get_var_blend */
(FT_Done_Blend_Func) tt_done_blend /* done_blend */

84
src/truetype/ttgxvar.c
View File

@ -2816,6 +2816,90 @@
}
/*************************************************************************/
/* */
/* <Function> */
/* TT_Set_Named_Instance */
/* */
/* <Description> */
/* Set the given named instance, also resetting any further */
/* variation. */
/* */
/* <Input> */
/* face :: A handle to the source face. */
/* */
/* instance_index :: The instance index, starting with value 1. */
/* Value 0 indicates to not use an instance. */
/* */
/* <Return> */
/* FreeType error code. 0~means success. */
/* */
FT_LOCAL_DEF( FT_Error )
TT_Set_Named_Instance( TT_Face face,
FT_UInt instance_index )
{
FT_Error error = FT_ERR( Invalid_Argument );
GX_Blend blend;
FT_MM_Var* mmvar;
FT_UInt num_instances;
if ( !face->blend )
{
if ( FT_SET_ERROR( TT_Get_MM_Var( face, NULL ) ) )
goto Exit;
}
blend = face->blend;
mmvar = blend->mmvar;
num_instances = (FT_UInt)face->root.style_flags >> 16;
/* `instance_index' starts with value 1, thus `>' */
if ( instance_index > num_instances )
goto Exit;
if ( instance_index > 0 && mmvar->namedstyle )
{
FT_Memory memory = face->root.memory;
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
FT_Var_Named_Style* named_style;
FT_String* style_name;
named_style = mmvar->namedstyle + instance_index - 1;
error = sfnt->get_name( face,
(FT_UShort)named_style->strid,
&style_name );
if ( error )
goto Exit;
/* set (or replace) style name */
FT_FREE( face->root.style_name );
face->root.style_name = style_name;
/* finally, select the named instance */
error = TT_Set_Var_Design( face,
mmvar->num_axis,
named_style->coords );
if ( error )
goto Exit;
}
else
error = TT_Set_Var_Design( face, 0, NULL );
face->root.face_index = ( instance_index << 16 ) |
( face->root.face_index & 0xFFFFL );
face->root.face_flags &= ~FT_FACE_FLAG_VARIATION;
Exit:
return error;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/

4
src/truetype/ttgxvar.h
View File

@ -401,6 +401,10 @@ FT_BEGIN_HEADER
FT_UInt num_coords,
FT_Fixed* coords );
FT_LOCAL( FT_Error )
TT_Set_Named_Instance( TT_Face face,
FT_UInt instance_index );
FT_LOCAL( FT_Error )
tt_face_vary_cvt( TT_Face face,
FT_Stream stream );

2
src/type1/t1driver.c
View File

@ -126,7 +126,7 @@
(FT_Get_MM_Var_Func) T1_Get_MM_Var, /* get_mm_var */
(FT_Set_Var_Design_Func)T1_Set_Var_Design, /* set_var_design */
(FT_Get_Var_Design_Func)T1_Get_Var_Design, /* get_var_design */
(FT_Set_Instance_Func) NULL, /* set_instance */
(FT_Set_Instance_Func) T1_Reset_MM_Blend, /* set_instance */
(FT_Get_Var_Blend_Func) NULL, /* get_var_blend */
(FT_Done_Blend_Func) T1_Done_Blend /* done_blend */

12
src/type1/t1load.c
View File

@ -553,6 +553,18 @@
}
/* MM fonts don't have named instances, so only the design is reset */
FT_LOCAL_DEF( FT_Error )
T1_Reset_MM_Blend( T1_Face face,
FT_UInt instance_index )
{
FT_UNUSED( instance_index );
return T1_Set_MM_Blend( face, 0, NULL );
}
/*************************************************************************/
/* */
/* Just a wrapper around T1_Set_MM_Design to support the different */

4
src/type1/t1load.h
View File

@ -89,6 +89,10 @@ FT_BEGIN_HEADER
FT_UInt num_coords,
FT_Long* coords );
FT_LOCAL( FT_Error )
T1_Reset_MM_Blend( T1_Face face,
FT_UInt instance_index );
FT_LOCAL( FT_Error )
T1_Get_Var_Design( T1_Face face,
FT_UInt num_coords,