Distance field path optimizations and clean up.

src/gpu/effects/GrDistanceFieldTextureEffect.h

Index: src/gpu/effects/GrDistanceFieldTextureEffect.h
diff --git a/src/gpu/effects/GrDistanceFieldTextureEffect.h b/src/gpu/effects/GrDistanceFieldTextureEffect.h
index c24673bd27be4cbbcebfc2825eab92f2b29bdbb7..a733b20dbcb21b0b6e83c6860891870d0f807530 100644
--- a/src/gpu/effects/GrDistanceFieldTextureEffect.h
+++ b/src/gpu/effects/GrDistanceFieldTextureEffect.h
@@ -21,6 +21,8 @@ enum GrDistanceFieldEffectFlags {
     kUseLCD_DistanceFieldEffectFlag     = 0x04,   // use lcd text
     kBGR_DistanceFieldEffectFlag        = 0x08,   // lcd display has bgr order
     kPortrait_DistanceFieldEffectFlag   = 0x10,   // lcd display is in portrait mode (not used yet)
+

[robertphillips, 2014/10/28 16:32:04]

0x80 instead of 0xff ?
You could then have some asserts that the invalid bit isn't set.

[jvanverth1, 2014/10/28 18:01:31]

Done.

+    kInvalid_DistanceFieldEffectFlag    = 0xff,   // invalid state (for initialization)
     
     kUniformScale_DistanceFieldEffectMask = kSimilarity_DistanceFieldEffectFlag |
                                             kRectToRect_DistanceFieldEffectFlag,