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[sfnt] Support for 'COLR' v1 variable translate. 

* src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration value
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSLATE`.
(read_paint): Handle new enumeration value.
This commit is contained in:
Dominik Röttsches 2022-07-05 14:51:48 +03:00 committed by Werner Lemberg
parent 8ec531c26c
commit d134b9e37b
1 changed files with 22 additions and 1 deletions
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23
src/sfnt/ttcolr.c
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@ -70,6 +70,7 @@
FT_COLR_PAINTFORMAT_INTERNAL_VAR_RADIAL_GRADIENT = 7,
FT_COLR_PAINTFORMAT_INTERNAL_VAR_SWEEP_GRADIENT = 9,
FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSFORM = 13,
FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSLATE = 15,
FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER = 18,
FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM = 20,
FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER = 22,
@ -900,7 +901,9 @@
return 1;
}
else if ( apaint->format == FT_COLR_PAINTFORMAT_TRANSLATE )
else if ( apaint->format == FT_COLR_PAINTFORMAT_TRANSLATE ||
(FT_PaintFormat_Internal)apaint->format ==
FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSLATE )
{
apaint->u.translate.paint.p = child_table_p;
apaint->u.translate.paint.insert_root_transform = 0;
@ -908,6 +911,24 @@
apaint->u.translate.dx = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
apaint->u.translate.dy = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
if ( (FT_PaintFormat_Internal)apaint->format ==
FT_COLR_PAINTFORMAT_INTERNAL_VAR_TRANSLATE &&
VARIABLE_COLRV1_ENABLED )
{
var_index_base = FT_NEXT_ULONG( p );
if ( !get_deltas_for_var_index_base( face, colr, var_index_base, 2,
item_deltas ) )
return 0;
apaint->u.translate.dx += INT_TO_FIXED( item_deltas[0] );
apaint->u.translate.dy += INT_TO_FIXED( item_deltas[1] );
}
#endif
apaint->format = FT_COLR_PAINTFORMAT_TRANSLATE;
return 1;
}