refactor bitmapshader to use a controller

src/core/SkBitmapProcState.h

 /*
  * Copyright 2007 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 SkBitmapProcState_DEFINED
 #define SkBitmapProcState_DEFINED
 
@@ skipping 108 matching lines @@
     // These are used if the shaderproc is NULL
     MatrixProc          fMatrixProc;        // chooseProcs
     SampleProc32        fSampleProc32;      // chooseProcs
     SampleProc16        fSampleProc16;      // chooseProcs
 
     SkBitmap            fOrigBitmap;        // CONSTRUCTOR
     SkBitmap            fScaledBitmap;      // chooseProcs
 
     SkAutoTUnref<const SkMipMap> fCurrMip;
 
-    void processHQRequest();
-    void processMediumRequest();
-
     MatrixProc chooseMatrixProc(bool trivial_matrix);
     bool chooseProcs(const SkMatrix& inv, const SkPaint&);
     bool chooseScanlineProcs(bool trivialMatrix, bool clampClamp, const SkPaint& paint);
     ShaderProc32 chooseShaderProc32();
 
     // returns false if we failed to "lock" the pixels at all. Typically this
     // means we have to abort the shader.
     bool lockBaseBitmap();

[scroggo, 2015/06/02 13:24:54]

The implementation appears to be gone. Remove this too?

[reed1, 2015/06/02 14:07:46]

Done.

 
     // Return false if we failed to setup for fast translate (e.g. overflow)
     bool setupForTranslate();
 
 #ifdef SK_DEBUG
     static void DebugMatrixProc(const SkBitmapProcState&,
                                 uint32_t[], int count, int x, int y);
 #endif
 };
 
@@ skipping 38 matching lines @@
 void ClampX_ClampY_filter_affine(const SkBitmapProcState& s,
                                  uint32_t xy[], int count, int x, int y);
 void ClampX_ClampY_nofilter_affine(const SkBitmapProcState& s,
                                    uint32_t xy[], int count, int x, int y);
 void S32_D16_filter_DX(const SkBitmapProcState& s,
                        const uint32_t* xy, int count, uint16_t* colors);
 void S32_D16_filter_DXDY(const SkBitmapProcState& s,
                          const uint32_t* xy, int count, uint16_t* colors);
 
 #endif