hide emboss from everyone (except android for now)

BUG=skia:

Change-Id: Ibd453b0a63948e3e4950f02459d7bc01a6ed26c5
Reviewed-on: https://skia-review.googlesource.com/5671
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Derek Sollenberger <djsollen@google.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/src/effects/SkEmbossMaskFilter.h b/src/effects/SkEmbossMaskFilter.h
new file mode 100644
index 0000000000..395657224c
--- /dev/null
+++ b/src/effects/SkEmbossMaskFilter.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkEmbossMaskFilter_DEFINED
+#define SkEmbossMaskFilter_DEFINED
+
+#include "SkMaskFilter.h"
+
+/** \class SkEmbossMaskFilter
+
+    This mask filter creates a 3D emboss look, by specifying a light and blur amount.
+*/
+class SK_API SkEmbossMaskFilter : public SkMaskFilter {
+public:
+    struct Light {
+        SkScalar    fDirection[3];  // x,y,z
+        uint16_t    fPad;
+        uint8_t     fAmbient;
+        uint8_t     fSpecular;      // exponent, 4.4 right now
+    };
+
+    static sk_sp<SkMaskFilter> Make(SkScalar blurSigma, const Light& light);
+    
+    // overrides from SkMaskFilter
+    //  This method is not exported to java.
+    SkMask::Format getFormat() const override;
+    //  This method is not exported to java.
+    bool filterMask(SkMask* dst, const SkMask& src, const SkMatrix&,
+                    SkIPoint* margin) const override;
+
+    SK_TO_STRING_OVERRIDE()
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkEmbossMaskFilter)
+
+protected:
+    SkEmbossMaskFilter(SkScalar blurSigma, const Light& light);
+    void flatten(SkWriteBuffer&) const override;
+
+private:
+    Light       fLight;
+    SkScalar    fBlurSigma;
+
+    typedef SkMaskFilter INHERITED;
+};
+
+#endif