Make SkImageFilter methods const.

src/effects/SkMorphologyImageFilter.cpp

 /*
  * Copyright 2012 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.
  */
 
 #include "SkMorphologyImageFilter.h"
 #include "SkBitmap.h"
 #include "SkColorPriv.h"
@@ skipping 125 matching lines @@
           radiusY, bounds.height(), bounds.width(),
           src.rowBytesAsPixels(), dst->rowBytesAsPixels());
 }
 
 bool SkMorphologyImageFilter::filterImageGeneric(SkMorphologyImageFilter::Proc procX,
                                                  SkMorphologyImageFilter::Proc procY,
                                                  Proxy* proxy,
                                                  const SkBitmap& source,
                                                  const SkMatrix& ctm,
                                                  SkBitmap* dst,
-                                                 SkIPoint* offset) {
+                                                 SkIPoint* offset) const {
     SkBitmap src = source;
     SkIPoint srcOffset = SkIPoint::Make(0, 0);
     if (getInput(0) && !getInput(0)->filterImage(proxy, source, ctm, &src, &srcOffset)) {
         return false;
     }
 
     if (src.config() != SkBitmap::kARGB_8888_Config) {
         return false;
     }
 
@@ skipping 50 matching lines @@
     } else if (height > 0) {
         callProcY(procY, src, dst, height, srcBounds);
     }
     offset->fX = bounds.left();
     offset->fY = bounds.top();
     return true;
 }
 
 bool SkErodeImageFilter::onFilterImage(Proxy* proxy,
                                        const SkBitmap& source, const SkMatrix& ctm,
-                                       SkBitmap* dst, SkIPoint* offset) {
+                                       SkBitmap* dst, SkIPoint* offset) const {
     Proc erodeXProc = SkMorphologyGetPlatformProc(kErodeX_SkMorphologyProcType);
     if (!erodeXProc) {
         erodeXProc = erode<kX>;
     }
     Proc erodeYProc = SkMorphologyGetPlatformProc(kErodeY_SkMorphologyProcType);
     if (!erodeYProc) {
         erodeYProc = erode<kY>;
     }
     return this->filterImageGeneric(erodeXProc, erodeYProc, proxy, source, ctm, dst, offset);
 }
 
 bool SkDilateImageFilter::onFilterImage(Proxy* proxy,
                                         const SkBitmap& source, const SkMatrix& ctm,
-                                        SkBitmap* dst, SkIPoint* offset) {
+                                        SkBitmap* dst, SkIPoint* offset) const {
     Proc dilateXProc = SkMorphologyGetPlatformProc(kDilateX_SkMorphologyProcType);
     if (!dilateXProc) {
         dilateXProc = dilate<kX>;
     }
     Proc dilateYProc = SkMorphologyGetPlatformProc(kDilateY_SkMorphologyProcType);
     if (!dilateYProc) {
         dilateYProc = dilate<kY>;
     }
     return this->filterImageGeneric(dilateXProc, dilateYProc, proxy, source, ctm, dst, offset);
 }
@@ skipping 291 matching lines @@
     return SkImageFilterUtils::WrapTexture(src, rect.width(), rect.height(), dst);
 }
 
 };
 
 bool SkMorphologyImageFilter::filterImageGPUGeneric(bool dilate,
                                                     Proxy* proxy,
                                                     const SkBitmap& src,
                                                     const SkMatrix& ctm,
                                                     SkBitmap* result,
-                                                    SkIPoint* offset) {
+                                                    SkIPoint* offset) const {
     SkBitmap input;
     SkIPoint srcOffset = SkIPoint::Make(0, 0);
     if (!SkImageFilterUtils::GetInputResultGPU(getInput(0), proxy, src, ctm, &input, &srcOffset)) {
         return false;
     }
     SkIRect bounds;
     input.getBounds(&bounds);
     bounds.offset(srcOffset);
     if (!this->applyCropRect(&bounds, ctm)) {
         return false;
@@ skipping 21 matching lines @@
     if (!apply_morphology(input, srcBounds, type,
                           SkISize::Make(width, height), result)) {
         return false;
     }
     offset->fX = bounds.left();
     offset->fY = bounds.top();
     return true;
 }
 
 bool SkDilateImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
-                                         SkBitmap* result, SkIPoint* offset) {
+                                         SkBitmap* result, SkIPoint* offset) const {
     return this->filterImageGPUGeneric(true, proxy, src, ctm, result, offset);
 }
 
 bool SkErodeImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
-                                        SkBitmap* result, SkIPoint* offset) {
+                                        SkBitmap* result, SkIPoint* offset) const {
     return this->filterImageGPUGeneric(false, proxy, src, ctm, result, offset);
 }
 
 #endif