New GM that exercises gamma-correctness in various parts of the pipeline.

src/core/SkBlitter_Sprite.cpp

Index: src/core/SkBlitter_Sprite.cpp
diff --git a/src/core/SkBlitter_Sprite.cpp b/src/core/SkBlitter_Sprite.cpp
index 27cbd61768ed6db20aad874e0cbb570d1c449a19..8a863e54b0d26f18a2b3ab50f769a0743ecbed30 100644
--- a/src/core/SkBlitter_Sprite.cpp
+++ b/src/core/SkBlitter_Sprite.cpp
@@ -60,10 +60,10 @@ SkBlitter* SkBlitter::ChooseSprite(const SkPixmap& dst, const SkPaint& paint,
             blitter = SkSpriteBlitter::ChooseD16(source, paint, allocator);
             break;
         case kN32_SkColorType:
-            if (dst.info().isSRGB()) {
-                blitter = SkSpriteBlitter::ChooseS32(source, paint, allocator);
+            if (dst.info().isSRGB() || source.info().isSRGB()) {
+                blitter = SkSpriteBlitter::ChooseNew32(source, paint, allocator, dst.info().profileType());

[reed1, 2016/02/25 23:49:33]

nit: breaks 100col limit

             } else {
-                blitter = SkSpriteBlitter::ChooseL32(source, paint, allocator);
+                blitter = SkSpriteBlitter::ChooseLegacy32(source, paint, allocator);
             }
             break;
         case kRGBA_F16_SkColorType: