ref: d7bdcb1bb513ac1db99be7461e63f538f9c62293
parent: 6af39c3d767a40fae28124292400776138b974d3
author: Dominik Röttsches <drott@chromium.org>
date: Fri Jul 23 15:37:47 EDT 2021
[sfnt] 'COLR' v1 PaintTranslate and PaintScale precision * src/sfnt/ttcolr.c (read_paint): Implement spec changes in PaintTranslate and PaintScale and friends. Update parsing to read new shorter values.
--- a/src/sfnt/ttcolr.c
+++ b/src/sfnt/ttcolr.c
@@ -566,8 +566,8 @@
apaint->u.translate.paint.p = child_table_p;
apaint->u.translate.paint.insert_root_transform = 0;
- apaint->u.translate.dx = FT_NEXT_LONG( p );
- apaint->u.translate.dy = FT_NEXT_LONG( p );
+ apaint->u.translate.dx = FT_NEXT_SHORT( p ) << 16;
+ apaint->u.translate.dy = FT_NEXT_SHORT( p ) << 16;
return 1;
}
@@ -585,7 +585,7 @@
apaint->u.scale.paint.insert_root_transform = 0;
/* All scale paints get at least one scale value. */
- apaint->u.scale.scale_x = FT_NEXT_LONG( p );
+ apaint->u.scale.scale_x = FT_NEXT_SHORT( p ) << 2;
/* Non-uniform ones read an extra y value. */
if ( apaint->format ==
@@ -592,7 +592,7 @@
FT_COLR_PAINTFORMAT_SCALE ||
(FT_PaintFormat_Internal)apaint->format ==
FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER )
- apaint->u.scale.scale_y = FT_NEXT_LONG( p );
+ apaint->u.scale.scale_y = FT_NEXT_SHORT( p ) << 2;
else
apaint->u.scale.scale_y = apaint->u.scale.scale_x;
@@ -603,8 +603,8 @@
(FT_PaintFormat_Internal)apaint->format ==
FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER )
{
- apaint->u.scale.center_x = FT_NEXT_LONG ( p );
- apaint->u.scale.center_y = FT_NEXT_LONG ( p );
+ apaint->u.scale.center_x = FT_NEXT_SHORT ( p ) << 16;
+ apaint->u.scale.center_y = FT_NEXT_SHORT ( p ) << 16;
}
else
{