Move SkTypeface to sk_sp.

gm/variedtext.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 "gm.h"
 #include "SkCanvas.h"
 #include "SkPath.h"
 #include "SkTypeface.h"
 #include "SkRandom.h"
 
 /**
  * Draws text with random parameters. The text draws each get their own clip rect. It is also
  * used as a bench to measure how well the GPU backend batches text draws.
  */
 
 class VariedTextGM : public skiagm::GM {
 public:
     VariedTextGM(bool effectiveClip, bool lcd)
         : fEffectiveClip(effectiveClip)
         , fLCD(lcd) {
-        memset(fTypefacesToUnref, 0, sizeof(fTypefacesToUnref));
-    }
-
-    ~VariedTextGM() {
-        for (size_t i = 0; i < SK_ARRAY_COUNT(fTypefacesToUnref); ++i) {
-            SkSafeUnref(fTypefacesToUnref[i]);
-        }
     }
 
 protected:
     SkString onShortName() override {
         SkString name("varied_text");
         if (fEffectiveClip) {
             name.append("_clipped");
         } else {
             name.append("_ignorable_clip");
         }
@@ skipping 10 matching lines @@
     }
 
     void onOnceBeforeDraw() override {
         fPaint.setAntiAlias(true);
         fPaint.setLCDRenderText(fLCD);
 
         SkISize size = this->getISize();
         SkScalar w = SkIntToScalar(size.fWidth);
         SkScalar h = SkIntToScalar(size.fHeight);
 
-        static_assert(4 == SK_ARRAY_COUNT(fTypefacesToUnref), "typeface_cnt");
-        fTypefacesToUnref[0] = sk_tool_utils::create_portable_typeface("sans-serif", SkTypeface::kNormal);
-        fTypefacesToUnref[1] = sk_tool_utils::create_portable_typeface("sans-serif", SkTypeface::kBold);
-        fTypefacesToUnref[2] = sk_tool_utils::create_portable_typeface("serif", SkTypeface::kNormal);
-        fTypefacesToUnref[3] = sk_tool_utils::create_portable_typeface("serif", SkTypeface::kBold);
+        static_assert(4 == SK_ARRAY_COUNT(fTypefaces), "typeface_cnt");
+        fTypefaces[0] = sk_tool_utils::create_portable_typeface("sans-serif", SkTypeface::kNormal);
+        fTypefaces[1] = sk_tool_utils::create_portable_typeface("sans-serif", SkTypeface::kBold);
+        fTypefaces[2] = sk_tool_utils::create_portable_typeface("serif", SkTypeface::kNormal);
+        fTypefaces[3] = sk_tool_utils::create_portable_typeface("serif", SkTypeface::kBold);
 
         SkRandom random;
         for (int i = 0; i < kCnt; ++i) {
             int length = random.nextRangeU(kMinLength, kMaxLength);
             char text[kMaxLength];
             for (int j = 0; j < length; ++j) {
                 text[j] = (char)random.nextRangeU('!', 'z');
             }
             fStrings[i].set(text, length);
 
             fColors[i] = random.nextU();
             fColors[i] |= 0xFF000000;
             fColors[i] = sk_tool_utils::color_to_565(fColors[i]);
 
             static const SkScalar kMinPtSize = 8.f;
             static const SkScalar kMaxPtSize = 32.f;
 
             fPtSizes[i] = random.nextRangeScalar(kMinPtSize, kMaxPtSize);
 
-            fTypefaces[i] = fTypefacesToUnref[
-                random.nextULessThan(SK_ARRAY_COUNT(fTypefacesToUnref))];
+            fTypefaceIndices[i] = random.nextULessThan(SK_ARRAY_COUNT(fTypefaces));
 
             SkRect r;
             fPaint.setColor(fColors[i]);
-            fPaint.setTypeface(fTypefaces[i]);
+            fPaint.setTypeface(fTypefaces[fTypefaceIndices[i]]);
             fPaint.setTextSize(fPtSizes[i]);
 
             fPaint.measureText(fStrings[i].c_str(), fStrings[i].size(), &r);
             // safeRect is set of x,y positions where we can draw the string without hitting
             // the GM's border.
             SkRect safeRect = SkRect::MakeLTRB(-r.fLeft, -r.fTop, w - r.fRight, h - r.fBottom);
             if (safeRect.isEmpty()) {
                 // If we don't fit then just don't worry about how we get cliped to the device
                 // border.
                 safeRect = SkRect::MakeWH(w, h);
             }
             fPositions[i].fX = random.nextRangeScalar(safeRect.fLeft, safeRect.fRight);
             fPositions[i].fY = random.nextRangeScalar(safeRect.fTop, safeRect.fBottom);
 
             fClipRects[i] = r;
             fClipRects[i].offset(fPositions[i].fX, fPositions[i].fY);
             fClipRects[i].outset(2.f, 2.f);
 
             if (fEffectiveClip) {
                 fClipRects[i].fRight -= 0.25f * fClipRects[i].width();
             }
         }
     }
 
     void onDraw(SkCanvas* canvas) override {
         for (int i = 0; i < kCnt; ++i) {
             fPaint.setColor(fColors[i]);
             fPaint.setTextSize(fPtSizes[i]);
-            fPaint.setTypeface(fTypefaces[i]);
+            fPaint.setTypeface(fTypefaces[fTypefaceIndices[i]]);
 
             canvas->save();
                 canvas->clipRect(fClipRects[i]);
                 canvas->translate(fPositions[i].fX, fPositions[i].fY);
                 canvas->drawText(fStrings[i].c_str(), fStrings[i].size(), 0, 0, fPaint);
             canvas->restore();
         }
 
         // Visualize the clips, but not in bench mode.
         if (kBench_Mode != this->getMode()) {
             SkPaint wirePaint;
             wirePaint.setAntiAlias(true);
             wirePaint.setStrokeWidth(0);
             wirePaint.setStyle(SkPaint::kStroke_Style);
             for (int i = 0; i < kCnt; ++i) {
                 canvas->drawRect(fClipRects[i], wirePaint);
             }
         }
     }
 
     bool runAsBench() const override { return true; }
 
 private:
     static const int kCnt = 30;
     static const int kMinLength = 15;
     static const int kMaxLength = 40;
 
     bool        fEffectiveClip;
     bool        fLCD;
-    SkTypeface* fTypefacesToUnref[4];
+    sk_sp<SkTypeface> fTypefaces[4];
     SkPaint     fPaint;
 
     // precomputed for each text draw
     SkString        fStrings[kCnt];
     SkColor         fColors[kCnt];
     SkScalar        fPtSizes[kCnt];
-    SkTypeface*     fTypefaces[kCnt];
+    int             fTypefaceIndices[kCnt];
     SkPoint         fPositions[kCnt];
     SkRect          fClipRects[kCnt];
 
     typedef skiagm::GM INHERITED;
 };
 
 DEF_GM(return new VariedTextGM(false, false);)
 DEF_GM(return new VariedTextGM(true, false);)
 DEF_GM(return new VariedTextGM(false, true);)
 DEF_GM(return new VariedTextGM(true, true);)