Reland of "more shader-->sp conversions (patchset #5 id:80001 of https://codereview.chromium…

gm/tilemodes.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gm.h"
 #include "SkPath.h"
 #include "SkRegion.h"
 #include "SkShader.h"
 #include "SkUtils.h"
 #include "SkColorFilter.h"
 
 // effects
 #include "SkGradientShader.h"
 #include "SkBlurDrawLooper.h"
 
 static void makebm(SkBitmap* bm, SkColorType ct, int w, int h) {
     bm->allocPixels(SkImageInfo::Make(w, h, ct, kPremul_SkAlphaType));
     bm->eraseColor(SK_ColorTRANSPARENT);
 
     SkCanvas    canvas(*bm);
     SkPoint     pts[] = { { 0, 0 }, { SkIntToScalar(w), SkIntToScalar(h)} };
     SkColor     colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
     SkScalar    pos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
     SkPaint     paint;
 
     paint.setDither(true);
-    paint.setShader(SkGradientShader::CreateLinear(pts, colors, pos,
-                SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode))->unref();
+    paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, SK_ARRAY_COUNT(colors),
+                                                 SkShader::kClamp_TileMode));
     canvas.drawPaint(paint);
 }
 
 static void setup(SkPaint* paint, const SkBitmap& bm, bool filter,
                   SkShader::TileMode tmx, SkShader::TileMode tmy) {
-    SkShader* shader = SkShader::CreateBitmapShader(bm, tmx, tmy);
-    paint->setShader(shader)->unref();
+    paint->setShader(SkShader::MakeBitmapShader(bm, tmx, tmy));
     paint->setFilterQuality(filter ? kLow_SkFilterQuality : kNone_SkFilterQuality);
 }
 
 static const SkColorType gColorTypes[] = {
     kN32_SkColorType,
     kRGB_565_SkColorType,
 };
 
 class TilingGM : public skiagm::GM {
 public:
@@ skipping 100 matching lines @@
     }
 
 private:
     bool fPowerOfTwoSize;
     typedef skiagm::GM INHERITED;
 };
 
 static const int gWidth = 32;
 static const int gHeight = 32;
 
-static SkShader* make_bm(SkShader::TileMode tx, SkShader::TileMode ty) {
+static sk_sp<SkShader> make_bm(SkShader::TileMode tx, SkShader::TileMode ty) {
     SkBitmap bm;
     makebm(&bm, kN32_SkColorType, gWidth, gHeight);
-    return SkShader::CreateBitmapShader(bm, tx, ty);
+    return SkShader::MakeBitmapShader(bm, tx, ty);
 }
 
-static SkShader* make_grad(SkShader::TileMode tx, SkShader::TileMode ty) {
+static sk_sp<SkShader> make_grad(SkShader::TileMode tx, SkShader::TileMode ty) {
     SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(gWidth), SkIntToScalar(gHeight)} };
     SkPoint center = { SkIntToScalar(gWidth)/2, SkIntToScalar(gHeight)/2 };
     SkScalar rad = SkIntToScalar(gWidth)/2;
     SkColor colors[] = { 0xFFFF0000, sk_tool_utils::color_to_565(0xFF0044FF) };
 
     int index = (int)ty;
     switch (index % 3) {
         case 0:
-            return SkGradientShader::CreateLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors), tx);
+            return SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors), tx);
         case 1:
-            return SkGradientShader::CreateRadial(center, rad, colors, nullptr, SK_ARRAY_COUNT(colors), tx);
+            return SkGradientShader::MakeRadial(center, rad, colors, nullptr, SK_ARRAY_COUNT(colors), tx);
         case 2:
-            return SkGradientShader::CreateSweep(center.fX, center.fY, colors, nullptr, SK_ARRAY_COUNT(colors));
+            return SkGradientShader::MakeSweep(center.fX, center.fY, colors, nullptr, SK_ARRAY_COUNT(colors));
     }
-
     return nullptr;
 }
 
-typedef SkShader* (*ShaderProc)(SkShader::TileMode, SkShader::TileMode);
+typedef sk_sp<SkShader> (*ShaderProc)(SkShader::TileMode, SkShader::TileMode);
 
 class Tiling2GM : public skiagm::GM {
     ShaderProc fProc;
     SkString   fName;
 public:
     Tiling2GM(ShaderProc proc, const char name[]) : fProc(proc) {
         fName.printf("tilemode_%s", name);
     }
 
 protected:
@@ skipping 37 matching lines @@
 
         for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) {
             x = SkIntToScalar(16) + w;
 
             SkString str(gModeNames[ky]);
             canvas->drawText(str.c_str(), str.size(), x, y + h/2, p);
 
             x += SkIntToScalar(50);
             for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) {
                 SkPaint paint;
-                paint.setShader(fProc(gModes[kx], gModes[ky]))->unref();
+                paint.setShader(fProc(gModes[kx], gModes[ky]));
 
                 canvas->save();
                 canvas->translate(x, y);
                 canvas->drawRect(r, paint);
                 canvas->restore();
 
                 x += r.width() * 4 / 3;
             }
             y += r.height() * 4 / 3;
         }
     }
 
 private:
     typedef skiagm::GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new TilingGM(true); )
 DEF_GM( return new TilingGM(false); )
 DEF_GM( return new Tiling2GM(make_bm, "bitmap"); )
 DEF_GM( return new Tiling2GM(make_grad, "gradient"); )