Reland of [2] of "switch colorfilters to sk_sp (patchset #11 id:200001 of https://codereview.chromium.o…

bench/ImageFilterCollapse.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Benchmark.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
@@ skipping 10 matching lines @@
 // the passes are collapsed in one.
 
 class BaseImageFilterCollapseBench : public Benchmark {
 public:
     BaseImageFilterCollapseBench(): fImageFilter(nullptr) {}
     ~BaseImageFilterCollapseBench() {
         SkSafeUnref(fImageFilter);
     }
 
 protected:
-    void doPreDraw(SkColorFilter* colorFilters[], int nFilters) {
+    void doPreDraw(sk_sp<SkColorFilter> colorFilters[], int nFilters) {
         // Create a chain of ImageFilters from colorFilters
         fImageFilter = nullptr;
         for(int i = nFilters; i --> 0;) {
             SkAutoTUnref<SkImageFilter> filter(
-                        SkColorFilterImageFilter::Create(colorFilters[i], fImageFilter, nullptr)
+                    SkColorFilterImageFilter::Create(colorFilters[i].get(), fImageFilter, nullptr)
             );
             SkRefCnt_SafeAssign(fImageFilter, filter.get());
         }
     }
 
     void onDraw(int loops, SkCanvas* canvas) override {
         makeBitmap();
 
         for(int i = 0; i < loops; i++) {
             SkPaint paint;
@@ skipping 19 matching lines @@
             SK_ColorBLACK, SK_ColorGREEN, SK_ColorCYAN,
             SK_ColorRED, 0, SK_ColorBLUE, SK_ColorWHITE
         };
         paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
                                                      SkShader::kClamp_TileMode));
         canvas.drawPaint(paint);
     }
 };
 
 class TableCollapseBench: public BaseImageFilterCollapseBench {
-public:
-    virtual ~TableCollapseBench() {}
-
 protected:
-    virtual const char* onGetName() override {
+    const char* onGetName() override {
         return "image_filter_collapse_table";
     }
 
-    virtual void onDelayedSetup() override {
+    void onDelayedSetup() override {
         for (int i = 0; i < 256; ++i) {
             int n = i >> 5;
             table1[i] = (n << 5) | (n << 2) | (n >> 1);
 
             table2[i] = i * i / 255;
 
             float fi = i / 255.0f;
             table3[i] = static_cast<uint8_t>(sqrtf(fi) * 255);
         }
 
-        SkColorFilter* colorFilters[] = {
-            SkTableColorFilter::Create(table1),
-            SkTableColorFilter::Create(table2),
-            SkTableColorFilter::Create(table3),
+        sk_sp<SkColorFilter> colorFilters[] = {
+            SkTableColorFilter::Make(table1),
+            SkTableColorFilter::Make(table2),
+            SkTableColorFilter::Make(table3),
         };
 
         doPreDraw(colorFilters, SK_ARRAY_COUNT(colorFilters));
-
-        for(unsigned i = 0; i < SK_ARRAY_COUNT(colorFilters); i++) {
-            colorFilters[i]->unref();
-        }
     }
 
 private:
     uint8_t table1[256], table2[256], table3[256];
 };
 
-static SkColorFilter* make_brightness(float amount) {
+static sk_sp<SkColorFilter> make_brightness(float amount) {
     SkScalar amount255 = SkScalarMul(amount, SkIntToScalar(255));
     SkScalar matrix[20] = { 1, 0, 0, 0, amount255,
                             0, 1, 0, 0, amount255,
                             0, 0, 1, 0, amount255,
                             0, 0, 0, 1, 0 };
-    return SkColorMatrixFilter::Create(matrix);
+    return SkColorFilter::MakeMatrixFilterRowMajor255(matrix);
 }
 
-static SkColorFilter* make_grayscale() {
+static sk_sp<SkColorFilter> make_grayscale() {
     SkScalar matrix[20];
     memset(matrix, 0, 20 * sizeof(SkScalar));
     matrix[0] = matrix[5] = matrix[10] = 0.2126f;
     matrix[1] = matrix[6] = matrix[11] = 0.7152f;
     matrix[2] = matrix[7] = matrix[12] = 0.0722f;
     matrix[18] = 1.0f;
-    return SkColorMatrixFilter::Create(matrix);
+    return SkColorFilter::MakeMatrixFilterRowMajor255(matrix);
 }
 
 class MatrixCollapseBench: public BaseImageFilterCollapseBench {
-public:
-    virtual ~MatrixCollapseBench() {}
-
 protected:
-    virtual const char* onGetName() override {
+    const char* onGetName() override {
         return "image_filter_collapse_matrix";
     }
 
-    virtual void onDelayedSetup() override {
-        SkColorFilter* colorFilters[] = {
+    void onDelayedSetup() override {
+        sk_sp<SkColorFilter> colorFilters[] = {
             make_brightness(0.1f),
             make_grayscale(),
             make_brightness(-0.1f),
         };
 
         doPreDraw(colorFilters, SK_ARRAY_COUNT(colorFilters));
-
-        for(unsigned i = 0; i < SK_ARRAY_COUNT(colorFilters); i++) {
-            colorFilters[i]->unref();
-        }
     }
 };
 
 DEF_BENCH(return new TableCollapseBench;)
 DEF_BENCH(return new MatrixCollapseBench;)