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[gf] Added GF_Size_Request and GF_Size_Select functions.

This commit is contained in:
Parth Wazurkar 2018-06-03 16:28:45 +05:30
parent 577efd8f17
commit 265cc448fd
1 changed files with 53 additions and 5 deletions
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58
src/gf/gfdrivr.c
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@ -39,7 +39,7 @@
typedef struct GF_CMapRec_
{
FT_CMapRec cmap;
FT_CMapRec cmap;
FT_UInt32 bc; /* Beginning Character */
FT_UInt32 ec; /* End Character */
} GF_CMapRec, *GF_CMap;
@ -76,12 +76,12 @@
{
FT_UInt gindex = 0;
GF_CMap cmap = (GF_CMap)gfcmap;
char_code -= cmap->bc;
if ( char_code < cmap->ec - cmap->bc + 1 )
gindex = (FT_UInt)( char_code );
return gindex;
}
@ -144,11 +144,59 @@
//TO-DO
}
FT_CALLBACK_DEF( FT_Error )
GF_Size_Select( FT_Size size,
FT_ULong strike_index )
{
GF_Face face = (GF_Face)size->face;
FT_UNUSED( strike_index );
FT_Select_Metrics( size->face, 0 );
size->metrics.ascender = /* */ ;
size->metrics.descender = /* */ ;
size->metrics.max_advance = /* */ ;
return FT_Err_Ok;
}
FT_CALLBACK_DEF( FT_Error )
GF_Size_Request( FT_Size size,
FT_Size_Request req )
{
//TO-DO
GF_Face face = (GF_Face)size->face;
FT_Bitmap_Size* bsize = size->face->available_sizes;
FT_Error error = FT_ERR( Invalid_Pixel_Size );
FT_Long height;
height = FT_REQUEST_HEIGHT( req );
height = ( height + 32 ) >> 6;
switch ( req->type )
{
case FT_SIZE_REQUEST_TYPE_NOMINAL:
if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
error = FT_Err_Ok;
break;
case FT_SIZE_REQUEST_TYPE_REAL_DIM:
if ( height == /* */ )
error = FT_Err_Ok;
break;
default:
error = FT_THROW( Unimplemented_Feature );
break;
}
if ( error )
return error;
else
return GF_Size_Select( size, 0 );
}