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[ft-paint] Optimize away some transforms

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Matthias Clasen 2022-12-23 09:16:26 -05:00 committed by Behdad Esfahbod
parent 586d1758c1
commit 7fc3fdac76
1 changed files with 16 additions and 10 deletions
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26
src/hb-ft-colr.hh
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@ -288,23 +288,29 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
break; break;
case FT_COLR_PAINTFORMAT_SCALE: case FT_COLR_PAINTFORMAT_SCALE:
{ {
paint_funcs->push_transform (paint_data, bool has_translate = paint.u.scale.center_x != 0 || paint.u.scale.center_y != 0;
1.f, 0.f, 0.f, 1.f, if (has_translate)
+paint.u.scale.center_x / 65536.f, paint_funcs->push_transform (paint_data,
+paint.u.scale.center_y / 65536.f); 1.f, 0.f, 0.f, 1.f,
+paint.u.scale.center_x / 65536.f,
+paint.u.scale.center_y / 65536.f);
paint_funcs->push_transform (paint_data, paint_funcs->push_transform (paint_data,
paint.u.scale.scale_x / 65536.f, paint.u.scale.scale_x / 65536.f,
0.f, 0.f, 0.f, 0.f,
paint.u.scale.scale_y / 65536.f, paint.u.scale.scale_y / 65536.f,
0.f, 0.f); 0.f, 0.f);
paint_funcs->push_transform (paint_data, if (has_translate)
1.f, 0.f, 0.f, 1.f, paint_funcs->push_transform (paint_data,
-paint.u.scale.center_x / 65536.f, 1.f, 0.f, 0.f, 1.f,
-paint.u.scale.center_y / 65536.f); -paint.u.scale.center_x / 65536.f,
-paint.u.scale.center_y / 65536.f);
paint_recurse (paint.u.scale.paint); paint_recurse (paint.u.scale.paint);
paint_funcs->pop_transform (paint_data); paint_funcs->pop_transform (paint_data);
paint_funcs->pop_transform (paint_data); if (has_translate)
paint_funcs->pop_transform (paint_data); {
paint_funcs->pop_transform (paint_data);
paint_funcs->pop_transform (paint_data);
}
} }
break; break;
case FT_COLR_PAINTFORMAT_ROTATE: case FT_COLR_PAINTFORMAT_ROTATE: