Refactored SkColorSpace and added in a Lab PCS GM

src/core/SkColorSpace_A2B0.h

Index: src/core/SkColorSpace_A2B0.h
diff --git a/src/core/SkColorSpace_A2B0.h b/src/core/SkColorSpace_A2B0.h
new file mode 100644
index 0000000000000000000000000000000000000000..9744d59ac39004e0d1c0ba1270129a21a85a9abf
--- /dev/null
+++ b/src/core/SkColorSpace_A2B0.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkColorSpace_A2B0_DEFINED
+#define SkColorSpace_A2B0_DEFINED
+
+#include "SkColorSpace_Base.h"
+
+class SkColorSpace_A2B0 : public SkColorSpace_Base {
+public:
+    enum class PCS : uint8_t {
+        kLAB,
+        kXYZ
+    };
+    
+    PCS pcs() const { return fPCS; }
+    
+    SkGammaNamed aCurveNamed() const { return fACurveNamed; }
+    
+    const SkGammas* aCurve() const { return fACurve.get(); }
+    
+    SkGammaNamed mCurveNamed() const { return fMCurveNamed; }
+    
+    const SkGammas* mCurve() const { return fMCurve.get(); }
+    
+    SkGammaNamed bCurveNamed() const { return fBCurveNamed; }
+    
+    const SkGammas* bCurve() const { return fBCurve.get(); }
+
+    const SkColorLookUpTable* colorLUT() const { return fColorLUT.get(); }
+    
+    const SkMatrix44 toPCS() const { return fToPCS; }
+
+
+private:
+    SkColorSpace_A2B0(PCS pcs, sk_sp<SkColorLookUpTable> colorLUT,
+                      SkGammaNamed aCurveNamed, sk_sp<SkGammas> aCurve,
+                      SkGammaNamed mCurveNamed, sk_sp<SkGammas> mCurve,
+                      SkGammaNamed bCurveNamed, sk_sp<SkGammas> bCurve,
+                      const SkMatrix44& toPCS, sk_sp<SkData> profileData);
+
+    PCS                       fPCS;
+    sk_sp<SkColorLookUpTable> fColorLUT;
+    const SkGammaNamed        fACurveNamed;
+    sk_sp<SkGammas>           fACurve;
+    const SkGammaNamed        fMCurveNamed;
+    sk_sp<SkGammas>           fMCurve;
+    const SkGammaNamed        fBCurveNamed;
+    sk_sp<SkGammas>           fBCurve;
+    sk_sp<SkData>             fProfileData;

[msarett, 2016/10/05 19:05:52]

nit: This field is already on the base.

[raftias, 2016/10/06 14:43:04]

This was a mistake. I meant for it to be stored in Base.

+    SkMatrix44                fToPCS;
+
+    
+    friend class SkColorSpace;
+    typedef SkColorSpace_Base INHERITED;
+};
+
+inline SkColorSpace_A2B0* as_CSA2B(SkColorSpace* colorSpace) {
+    SkASSERT(as_CSB(colorSpace)->type() == SkColorSpace_Base::Type::kA2B0);
+    return static_cast<SkColorSpace_A2B0*>(colorSpace);
+}
+
+inline const SkColorSpace_A2B0* as_CSA2B(const SkColorSpace* colorSpace) {
+    SkASSERT(as_CSB(colorSpace)->type() == SkColorSpace_Base::Type::kA2B0);
+    return static_cast<const SkColorSpace_A2B0*>(colorSpace);
+}
+
+inline SkColorSpace_A2B0* as_CSA2B(const sk_sp<SkColorSpace>& colorSpace) {
+    SkASSERT(as_CSB(colorSpace)->type() == SkColorSpace_Base::Type::kA2B0);
+    return static_cast<SkColorSpace_A2B0*>(colorSpace.get());
+}
+
+#endif