SkTextBlob GPipe serialization.

include/core/SkTextBlob.h

 /*
  * 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 SkTextBlob_DEFINED
 #define SkTextBlob_DEFINED
 
@@ skipping 14 matching lines @@
     /**
      *  Returns the blob bounding box.
      */
     const SkRect& bounds() const { return fBounds; }
 
     /**
      *  Return a non-zero, unique value representing the text blob.
      */
     uint32_t uniqueID() const;
 
+    /**
+     *  Serialize to a buffer.
+     */
+    void flatten(SkWriteBuffer&) const;
+
+    /**
+     *  Recreate an SkTextBlob that was serialized into a buffer.
+     *
+     *  @param  SkReadBuffer Serialized blob data.
+     *  @return A new SkTextBlob representing the serialized data, or NULL if the buffer is
+     *          invalid.
+     */
+    static const SkTextBlob* CreateFromBuffer(SkReadBuffer&);
+
 private:
     enum GlyphPositioning {
         kDefault_Positioning      = 0, // Default glyph advances -- zero scalars per glyph.
         kHorizontal_Positioning   = 1, // Horizontal positioning -- one scalar per glyph.
         kFull_Positioning         = 2  // Point positioning -- two scalars per glyph.
     };
 
     class RunIterator {
     public:
         RunIterator(const SkTextBlob* blob);
@@ skipping 18 matching lines @@
         uint32_t         count;
         uint32_t         glyphStart; // index into fGlyphBuffer
         uint32_t         posStart;   // index into fPosBuffer
         SkPoint          offset;     // run offset (unsued for fully positioned glyphs)
         SkPaint          font;
         GlyphPositioning positioning;
     };
 
     SkTextBlob(uint16_t* glyphs, SkScalar* pos, const SkTArray<Run>* runs, const SkRect& bounds);
 
-    void flatten(SkWriteBuffer&) const;
-    static const SkTextBlob* CreateFromBuffer(SkReadBuffer&);
-
     static unsigned ScalarsPerGlyph(GlyphPositioning pos);
 
     friend class SkCanvas;
-    friend class SkPictureData;
     friend class SkTextBlobBuilder;
     friend class TextBlobTester;
 
     const SkAutoTMalloc<uint16_t>       fGlyphBuffer;
     const SkAutoTMalloc<SkScalar>       fPosBuffer;
 
     // SkTArray required here for run font destruction.
     SkAutoTDelete<const SkTArray<Run> > fRuns;
     const SkRect                        fBounds;
 
@@ skipping 90 matching lines @@
     SkTDArray<SkScalar>        fPosBuffer;
     SkTArray<SkTextBlob::Run>* fRuns;
 
     SkRect                     fBounds;
     bool                       fDeferredBounds;
 
     RunBuffer                  fCurrentRunBuffer;
 };
 
 #endif // SkTextBlob_DEFINED