Revert "Revert of Pass effects directly to fontcache (patchset #8 id:140001 of https://codereview.c…

src/core/SkScalerContext.h

 /*
  * Copyright 2006 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 SkScalerContext_DEFINED
 #define SkScalerContext_DEFINED
 
 #include "SkMask.h"
 #include "SkMaskGamma.h"
 #include "SkMatrix.h"
 #include "SkPaint.h"
 #include "SkTypeface.h"
 
 class SkGlyph;
 class SkDescriptor;
 class SkMaskFilter;
 class SkPathEffect;
 class SkRasterizer;
 
+struct SkScalerContextEffects {
+    SkScalerContextEffects() : fPathEffect(nullptr), fMaskFilter(nullptr), fRasterizer(nullptr) {}
+    SkScalerContextEffects(SkPathEffect* pe, SkMaskFilter* mf, SkRasterizer* ra)
+        : fPathEffect(pe), fMaskFilter(mf), fRasterizer(ra) {}
+
+    SkPathEffect*   fPathEffect;
+    SkMaskFilter*   fMaskFilter;
+    SkRasterizer*   fRasterizer;
+};
+
 enum SkAxisAlignment {
     kNone_SkAxisAlignment,
     kX_SkAxisAlignment,
     kY_SkAxisAlignment
 };
 
 /*
  *  To allow this to be forward-declared, it must be its own typename, rather
  *  than a nested struct inside SkScalerContext (where it started).
  */
@@ skipping 160 matching lines @@
         // Generate A8 from LCD source (for GDI and CoreGraphics).
         // only meaningful if fMaskFormat is kA8
         kGenA8FromLCD_Flag        = 0x0800, // could be 0x200 (bit meaning dependent on fMaskFormat)
     };
 
     // computed values
     enum {
         kHinting_Mask   = kHintingBit1_Flag | kHintingBit2_Flag,
     };
 
-
-    SkScalerContext(SkTypeface*, const SkDescriptor*);
+    SkScalerContext(SkTypeface*, const SkScalerContextEffects&, const SkDescriptor*);
     virtual ~SkScalerContext();
 
     SkTypeface* getTypeface() const { return fTypeface.get(); }
 
     SkMask::Format getMaskFormat() const {
         return (SkMask::Format)fRec.fMaskFormat;
     }
 
     bool isSubpixel() const {
         return SkToBool(fRec.fFlags & kSubpixelPositioning_Flag);
@@ skipping 38 matching lines @@
                                   void* data);
 
     static void MakeRec(const SkPaint&, const SkSurfaceProps* surfaceProps,
                         const SkMatrix*, Rec* rec);
     static inline void PostMakeRec(const SkPaint&, Rec*);
 
     static SkMaskGamma::PreBlend GetMaskPreBlend(const Rec& rec);
 
     const Rec& getRec() const { return fRec; }
 
+    SkScalerContextEffects getEffects() const {
+        return { fPathEffect.get(), fMaskFilter.get(), fRasterizer.get() };
+    }
+
     /**
     *  Return the axis (if any) that the baseline for horizontal text should land on.
     *  As an example, the identity matrix will return kX_SkAxisAlignment
     */
     SkAxisAlignment computeAxisAlignmentForHText();
 
-
 protected:
     Rec         fRec;
 
     /** Generates the contents of glyph.fAdvanceX and glyph.fAdvanceY.
      *  May call getMetrics if that would be just as fast.
      */
     virtual void generateAdvance(SkGlyph* glyph) = 0;
 
     /** Generates the contents of glyph.fWidth, fHeight, fTop, fLeft,
      *  as well as fAdvanceX and fAdvanceY if not already set.
@@ skipping 39 matching lines @@
      */
     virtual SkUnichar generateGlyphToChar(uint16_t glyphId);
 
     void forceGenerateImageFromPath() { fGenerateImageFromPath = true; }
     void forceOffGenerateImageFromPath() { fGenerateImageFromPath = false; }
 
 private:
     friend class SkRandomScalerContext; // For debug purposes
 
     // never null
-    SkAutoTUnref<SkTypeface> fTypeface;
+    sk_sp<SkTypeface> fTypeface;
 
-    // optional object, which may be null
-    SkPathEffect*   fPathEffect;
-    SkMaskFilter*   fMaskFilter;
-    SkRasterizer*   fRasterizer;
+    // optional objects, which may be null
+    sk_sp<SkPathEffect> fPathEffect;
+    sk_sp<SkMaskFilter> fMaskFilter;
+    sk_sp<SkRasterizer> fRasterizer;
 
     // if this is set, we draw the image from a path, rather than
     // calling generateImage.
     bool fGenerateImageFromPath;
 
     void internalGetPath(const SkGlyph& glyph, SkPath* fillPath,
                          SkPath* devPath, SkMatrix* fillToDevMatrix);
 
     // returns the right context from our link-list for this char. If no match
     // is found it returns nullptr. If a match is found then the glyphID param is
@@ skipping 23 matching lines @@
     return static_cast<SkPaint::Hinting>(hint);
 }
 
 void SkScalerContextRec::setHinting(SkPaint::Hinting hinting) {
     fFlags = (fFlags & ~SkScalerContext::kHinting_Mask) |
                                 (hinting << SkScalerContext::kHinting_Shift);
 }
 
 
 #endif