Implement support for a Context parameter in image filters

include/core/SkDevice.h

 
 /*
  * Copyright 2010 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 SkDevice_DEFINED
 #define SkDevice_DEFINED
 
 #include "SkRefCnt.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkColor.h"
 #include "SkDeviceProperties.h"
+#include "SkImageFilter.h"
 
 // getDeviceCapabilities() is not called by skia, but this flag keeps it around
 // for clients that have "override" annotations on their subclass. These overrides
 // should be deleted.
 //#define SK_SUPPORT_LEGACY_GETDEVICECAPABILITIES
 
 //#define SK_SUPPORT_LEGACY_COMPATIBLEDEVICE_CONFIG
 
 class SkClipStack;
 class SkDraw;
@@ skipping 337 matching lines @@
      */
     virtual bool canHandleImageFilter(const SkImageFilter*) = 0;
 
     /**
      *  Related (but not required) to canHandleImageFilter, this method returns
      *  true if the device could apply the filter to the src bitmap and return
      *  the result (and updates offset as needed).
      *  If the device does not recognize or support this filter,
      *  it just returns false and leaves result and offset unchanged.
      */
-    virtual bool filterImage(const SkImageFilter*, const SkBitmap&, const SkMatrix&,
+    virtual bool filterImage(const SkImageFilter*, const SkBitmap&,
+                             const SkImageFilter::Context& ctx,
                              SkBitmap* result, SkIPoint* offset) = 0;
 
     // This is equal kBGRA_Premul_Config8888 or kRGBA_Premul_Config8888 if
     // either is identical to kNative_Premul_Config8888. Otherwise, -1.
     static const SkCanvas::Config8888 kPMColorAlias;
 
 protected:
     // default impl returns NULL
     virtual SkSurface* newSurface(const SkImageInfo&);
 
@@ skipping 78 matching lines @@
     SkMetaData* fMetaData;
 
 #ifdef SK_DEBUG
     bool        fAttachedToCanvas;
 #endif
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif