Gamma correction for distance field text.

src/core/SkScalerContext.h

Index: src/core/SkScalerContext.h
diff --git a/src/core/SkScalerContext.h b/src/core/SkScalerContext.h
index f18d217f6208e6628bd02c2e71a69331e65fc30d..cea704d4cfeb7b47c25b596dd346e6fa512c6411 100644
--- a/src/core/SkScalerContext.h
+++ b/src/core/SkScalerContext.h
@@ -184,6 +184,11 @@ public:
     void        getPath(const SkGlyph&, SkPath*);
     void        getFontMetrics(SkPaint::FontMetrics*);
 
+    size_t      getGammaLUTSize(SkScalar contrast, SkScalar paintGamma, SkScalar deviceGamma,
+                                int* width, int* height);
+    void        getGammaLUTData(SkScalar contrast, SkScalar paintGamma, SkScalar deviceGamma,

[reed1, 2014/06/03 19:46:44]

I presume data is getGammLUTSize bytes big. Can we add some simple dox to make
this clear?

[jvanverth1, 2014/06/05 18:18:23]

Will do.

[jvanverth1, 2014/06/06 15:34:44]

Done.

+                                void* data);
+
 #ifdef SK_BUILD_FOR_ANDROID
     unsigned getBaseGlyphCount(SkUnichar charCode);