Adding 3D lut color filter

include/effects/SkColorProfileFilter.h

Index: include/effects/SkColorProfileFilter.h
diff --git a/include/effects/SkColorProfileFilter.h b/include/effects/SkColorProfileFilter.h
new file mode 100644
index 0000000000000000000000000000000000000000..f6380798ead8821097517251e356a7bc4d6bea4c
--- /dev/null
+++ b/include/effects/SkColorProfileFilter.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkColorProfileFilter_DEFINED
+#define SkColorProfileFilter_DEFINED
+
+#include "SkColorFilter.h"
+#include "SkData.h"
+
+class SK_API SkColorProfileFilter : public SkColorFilter {
+public:
+    static SkColorProfileFilter* Create(SkData* cubeData, int cubeDimension);
+
+    ~SkColorProfileFilter();
+
+    virtual void filterSpan(const SkPMColor src[], int count, SkPMColor[]) const SK_OVERRIDE;
+
+#if SK_SUPPORT_GPU
+   virtual GrFragmentProcessor* asFragmentProcessor(GrContext*) const SK_OVERRIDE;
+#endif
+
+    SK_TO_STRING_OVERRIDE()
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkColorProfileFilter)
+
+protected:
+    SkColorProfileFilter(SkData* cubeData, int cubeDimension);
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+    SkColorProfileFilter(SkReadBuffer& buffer);
+#endif
+    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
+
+private:
+    void initProcessingLuts();
+
+    SkData* fCubeData;
+    int32_t fCubeDimension;
+    int32_t fGenerationID;

[bsalomon, 2014/09/26 14:23:50]

If this never changes (since color filters are immutable), we should call it a
UniqueID and not a GenerationID to be consistent with other parts of Skia.

+    SkAutoMalloc fLutStorage;
+    int* fColorToIndex[2];
+    SkScalar* fColorToFactors[2];
+    SkMutex fInitMutex;
+    typedef SkColorFilter INHERITED;
+};
+
+#endif