Implement Fill() for incomplete decodes to RGBA_F16

src/codec/SkSampler.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkSampler_DEFINED
 #define SkSampler_DEFINED
 
 #include "SkCodec.h"
@@ skipping 17 matching lines @@
      * Contains the width of the destination rows to fill
      * Contains the number of rows that we need to fill.
      *
      * @param dst
      * The destination row to fill from.
      *
      * @param rowBytes
      * Stride in bytes of the destination.
      *
      * @param colorOrIndex
+     * If colorType is kF16, colorOrIndex is treated as a 64-bit color.
      * If colorType is kN32, colorOrIndex is treated as a 32-bit color.
      * If colorType is k565, colorOrIndex is treated as a 16-bit color.
      * If colorType is kGray, colorOrIndex is treated as an 8-bit color.
      * If colorType is kIndex, colorOrIndex is treated as an 8-bit index.
      * Other SkColorTypes are not supported.
      *
      * @param zeroInit
      * Indicates whether memory is already zero initialized.
      *
      */
     static void Fill(const SkImageInfo& info, void* dst, size_t rowBytes,
-            uint32_t colorOrIndex, SkCodec::ZeroInitialized zeroInit);
+            uint64_t colorOrIndex, SkCodec::ZeroInitialized zeroInit);
 
     /**
      * Allow subclasses to implement unique versions of fill().
      */
     virtual void fill(const SkImageInfo& info, void* dst, size_t rowBytes,
-            uint32_t colorOrIndex, SkCodec::ZeroInitialized zeroInit) {}
+            uint64_t colorOrIndex, SkCodec::ZeroInitialized zeroInit) {}
 
     virtual ~SkSampler() {}
 private:
 
     virtual int onSetSampleX(int) = 0;
 };
 
 #endif // SkSampler_DEFINED