Move impl into SkColorFilterBase

No expected changes to results (or public call-sites)

Change-Id: Ia0c5cfe2dc3beda82d91454527eda2e68287afb6
Bug: skia:10426
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298559
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>

include/core/SkColorFilter.h

@@ -11,71 +11,44 @@
 #include "include/core/SkBlendMode.h"
 #include "include/core/SkColor.h"
 #include "include/core/SkFlattenable.h"
-#include "include/core/SkRefCnt.h"
 
-class GrColorInfo;
-class GrFragmentProcessor;
-class GrRecordingContext;
-class SkArenaAlloc;
-class SkBitmap;
 class SkColorMatrix;
-class SkColorSpace;
-struct SkStageRec;
-using GrFPResult = std::tuple<bool, std::unique_ptr<GrFragmentProcessor>>;
-
-namespace skvm {
-    class Builder;
-    struct F32;
-    struct Uniforms;
-    struct Color;
-}
 
 /**
- *  ColorFilters are optional objects in the drawing pipeline. When present in
+*  ColorFilters are optional objects in the drawing pipeline. When present in
- *  a paint, they are called with the "src" colors, and return new colors, which
+*  a paint, they are called with the "src" colors, and return new colors, which
- *  are then passed onto the next stage (either ImageFilter or Xfermode).
+*  are then passed onto the next stage (either ImageFilter or Xfermode).
- *
+*
- *  All subclasses are required to be reentrant-safe : it must be legal to share
+*  All subclasses are required to be reentrant-safe : it must be legal to share
- *  the same instance between several threads.
+*  the same instance between several threads.
- */
+*/
 class SK_API SkColorFilter : public SkFlattenable {
 public:
     // DEPRECATED. skbug.com/8941
 
-    bool asColorMode(SkColor* color, SkBlendMode* mode) const {
+    bool asColorMode(SkColor* color, SkBlendMode* mode) const;
-        return this->onAsAColorMode(color, mode);
-    }
 
     /** If the filter can be represented by a source color plus Mode, this
      *  returns true, and sets (if not NULL) the color and mode appropriately.
      *  If not, this returns false and ignores the parameters.
      */
-    bool asAColorMode(SkColor* color, SkBlendMode* mode) const {
+    bool asAColorMode(SkColor* color, SkBlendMode* mode) const;
-        return this->onAsAColorMode(color, mode);
-    }
 
     /** If the filter can be represented by a 5x4 matrix, this
      *  returns true, and sets the matrix appropriately.
      *  If not, this returns false and ignores the parameter.
      */
-    bool asAColorMatrix(float matrix[20]) const {
+    bool asAColorMatrix(float matrix[20]) const;
-        return this->onAsAColorMatrix(matrix);
-    }
-
-    bool appendStages(const SkStageRec& rec, bool shaderIsOpaque) const;
-
-    skvm::Color program(skvm::Builder*, skvm::Color,
-                        SkColorSpace* dstCS, skvm::Uniforms*, SkArenaAlloc*) const;
 
+    // deprecated, use isAlphaUnchanged()
     enum Flags {
-        /** If set the filter methods will not change the alpha channel of the colors.
-        */
         kAlphaUnchanged_Flag = 1 << 0,
     };
+    uint32_t getFlags() const;
 
-    /** Returns the flags for this filter. Override in subclasses to return custom flags.
+
-    */
+    // Returns true if the filter is guaranteed to never change the alpha of a color it filters.
-    virtual uint32_t getFlags() const { return 0; }
+    bool isAlphaUnchanged() const;
 
     SkColor filterColor(SkColor) const;
 
@@ -93,52 +66,13 @@ public:
      */
     sk_sp<SkColorFilter> makeComposed(sk_sp<SkColorFilter> inner) const;
 
-#if SK_SUPPORT_GPU
-    /**
-     *  A subclass may implement this factory function to work with the GPU backend. It returns
-     *  a GrFragmentProcessor that implemets the color filter in GPU shader code.
-     *
-     *  The fragment processor receives a premultiplied input color and produces a premultiplied
-     *  output color.
-     *
-     *  A null return indicates that the color filter isn't implemented for the GPU backend.
-     */
-    virtual std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(
-            GrRecordingContext*, const GrColorInfo& dstColorInfo) const;
-#endif
-
-    bool affectsTransparentBlack() const {
-        return this->filterColor(SK_ColorTRANSPARENT) != SK_ColorTRANSPARENT;
-    }
-
-    static void RegisterFlattenables();
-
     static SkFlattenable::Type GetFlattenableType() {
         return kSkColorFilter_Type;
     }
 
-    SkFlattenable::Type getFlattenableType() const override {
-        return kSkColorFilter_Type;
-    }
-
-    static sk_sp<SkColorFilter> Deserialize(const void* data, size_t size,
-                                          const SkDeserialProcs* procs = nullptr) {
-        return sk_sp<SkColorFilter>(static_cast<SkColorFilter*>(
-                                  SkFlattenable::Deserialize(
-                                  kSkColorFilter_Type, data, size, procs).release()));
-    }
-
-protected:
-    SkColorFilter() {}
-
-    virtual bool onAsAColorMatrix(float[20]) const;
-    virtual bool onAsAColorMode(SkColor* color, SkBlendMode* bmode) const;
-
 private:
-    virtual bool onAppendStages(const SkStageRec& rec, bool shaderIsOpaque) const = 0;
+    SkColorFilter() = default;
-
+    friend class SkColorFilterBase;
-    virtual skvm::Color onProgram(skvm::Builder*, skvm::Color,
-                                  SkColorSpace* dstCS, skvm::Uniforms*, SkArenaAlloc*) const = 0;
 
     typedef SkFlattenable INHERITED;
 };

include/effects/SkLumaColorFilter.h

@@ -30,30 +30,14 @@ class SkRasterPipeline;
  *  not luminance, a dot-product of linear color channels.  So at least
  *  SkLumaColorFilter and feColorMatrix+luminanceToAlpha agree there.)
  */
-
+class SK_API SkLumaColorFilter {
- #include "include/core/SkFlattenable.h"
-
-class SK_API SkLumaColorFilter : public SkColorFilter {
 public:
     static sk_sp<SkColorFilter> Make();
 
-#if SK_SUPPORT_GPU
-    std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(GrRecordingContext*,
-                                                             const GrColorInfo&) const override;
-#endif
-
-protected:
-    void flatten(SkWriteBuffer&) const override;
-
 private:
-    SK_FLATTENABLE_HOOKS(SkLumaColorFilter)
+    friend class SkFlattenable;
 
-    SkLumaColorFilter();
+    static void RegisterFlattenable();
-    bool onAppendStages(const SkStageRec& rec, bool shaderIsOpaque) const override;
-    skvm::Color onProgram(skvm::Builder*, skvm::Color,
-                          SkColorSpace* dstCS, skvm::Uniforms*, SkArenaAlloc*) const override;
-
-    typedef SkColorFilter INHERITED;
 };
 
 #endif

src/core/SkColorFilter.cpp

@@ -5,13 +5,13 @@
  * found in the LICENSE file.
  */
 
-#include "include/core/SkColorFilter.h"
 #include "include/core/SkRefCnt.h"
 #include "include/core/SkString.h"
 #include "include/core/SkUnPreMultiply.h"
 #include "include/private/SkNx.h"
 #include "include/private/SkTDArray.h"
 #include "src/core/SkArenaAlloc.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkColorSpaceXformSteps.h"
 #include "src/core/SkMatrixProvider.h"
@@ -26,26 +26,46 @@
 #include "src/gpu/effects/generated/GrMixerEffect.h"
 #endif
 
-bool SkColorFilter::onAsAColorMode(SkColor*, SkBlendMode*) const {
+bool SkColorFilter::asColorMode(SkColor* color, SkBlendMode* mode) const {
+    return as_CFB(this)->onAsAColorMode(color, mode);
+}
+
+bool SkColorFilter::asAColorMode(SkColor* color, SkBlendMode* mode) const {
+    return as_CFB(this)->onAsAColorMode(color, mode);
+}
+
+bool SkColorFilter::asAColorMatrix(float matrix[20]) const {
+    return as_CFB(this)->onAsAColorMatrix(matrix);
+}
+
+uint32_t SkColorFilter::getFlags() const { return as_CFB(this)->onGetFlags(); }
+
+bool SkColorFilter::isAlphaUnchanged() const {
+    return SkToBool(this->getFlags() & kAlphaUnchanged_Flag);
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////
+
+bool SkColorFilterBase::onAsAColorMode(SkColor*, SkBlendMode*) const {
     return false;
 }
 
-bool SkColorFilter::onAsAColorMatrix(float matrix[20]) const {
+bool SkColorFilterBase::onAsAColorMatrix(float matrix[20]) const {
     return false;
 }
 
 #if SK_SUPPORT_GPU
-std::unique_ptr<GrFragmentProcessor> SkColorFilter::asFragmentProcessor(GrRecordingContext*,
+std::unique_ptr<GrFragmentProcessor> SkColorFilterBase::asFragmentProcessor(GrRecordingContext*,
                                                                         const GrColorInfo&) const {
     return nullptr;
 }
 #endif
 
-bool SkColorFilter::appendStages(const SkStageRec& rec, bool shaderIsOpaque) const {
+bool SkColorFilterBase::appendStages(const SkStageRec& rec, bool shaderIsOpaque) const {
     return this->onAppendStages(rec, shaderIsOpaque);
 }
 
-skvm::Color SkColorFilter::program(skvm::Builder* p, skvm::Color c,
+skvm::Color SkColorFilterBase::program(skvm::Builder* p, skvm::Color c,
                                        SkColorSpace* dstCS,
                                        skvm::Uniforms* uniforms, SkArenaAlloc* alloc) const {
     skvm::F32 original = c.a;
@@ -80,7 +100,7 @@ SkColor4f SkColorFilter::filterColor4f(const SkColor4f& origSrcColor, SkColorSpa
     SkStageRec rec = {
         &pipeline, &alloc, kRGBA_F32_SkColorType, dstCS, dummyPaint, nullptr, matrixProvider
     };
-    this->onAppendStages(rec, color.fA == 1);
+    as_CFB(this)->onAppendStages(rec, color.fA == 1);
 
     SkPMColor4f dst;
     SkRasterPipeline_MemoryCtx dstPtr = { &dst, 0 };
@@ -91,16 +111,16 @@ SkColor4f SkColorFilter::filterColor4f(const SkColor4f& origSrcColor, SkColorSpa
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-class SkComposeColorFilter : public SkColorFilter {
+class SkComposeColorFilter : public SkColorFilterBase {
 public:
-    uint32_t getFlags() const override {
+    uint32_t onGetFlags() const override {
         // Can only claim alphaunchanged support if both our proxys do.
-        return fOuter->getFlags() & fInner->getFlags();
+        return fOuter->onGetFlags() & fInner->onGetFlags();
     }
 
     bool onAppendStages(const SkStageRec& rec, bool shaderIsOpaque) const override {
         bool innerIsOpaque = shaderIsOpaque;
-        if (!(fInner->getFlags() & kAlphaUnchanged_Flag)) {
+        if (!fInner->isAlphaUnchanged()) {
             innerIsOpaque = false;
         }
         return fInner->appendStages(rec, shaderIsOpaque) &&
@@ -127,6 +147,8 @@ public:
     }
 #endif
 
+    SK_FLATTENABLE_HOOKS(SkComposeColorFilter)
+
 protected:
     void flatten(SkWriteBuffer& buffer) const override {
         buffer.writeFlattenable(fOuter.get());
@@ -134,14 +156,13 @@ protected:
     }
 
 private:
-    SK_FLATTENABLE_HOOKS(SkComposeColorFilter)
-
     SkComposeColorFilter(sk_sp<SkColorFilter> outer, sk_sp<SkColorFilter> inner)
-        : fOuter(std::move(outer))
+        : fOuter(as_CFB_sp(std::move(outer)))
-        , fInner(std::move(inner)) {}
+        , fInner(as_CFB_sp(std::move(inner)))
+    {}
 
-    sk_sp<SkColorFilter> fOuter;
+    sk_sp<SkColorFilterBase> fOuter;
-    sk_sp<SkColorFilter> fInner;
+    sk_sp<SkColorFilterBase> fInner;
 
     friend class SkColorFilter;
 
@@ -164,7 +185,7 @@ sk_sp<SkColorFilter> SkColorFilter::makeComposed(sk_sp<SkColorFilter> inner) con
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-class SkSRGBGammaColorFilter : public SkColorFilter {
+class SkSRGBGammaColorFilter : public SkColorFilterBase {
 public:
     enum class Direction {
         kLinearToSRGB,
@@ -216,19 +237,19 @@ public:
         return premul(fSteps.program(p, uniforms, unpremul(c)));
     }
 
+    SK_FLATTENABLE_HOOKS(SkSRGBGammaColorFilter)
+
 protected:
     void flatten(SkWriteBuffer& buffer) const override {
         buffer.write32(static_cast<uint32_t>(fDir));
     }
 
 private:
-    SK_FLATTENABLE_HOOKS(SkSRGBGammaColorFilter)
-
     const Direction fDir;
     SkColorSpaceXformSteps fSteps;
 
     friend class SkColorFilter;
-    typedef SkColorFilter INHERITED;
+    typedef SkColorFilterBase INHERITED;
 };
 
 sk_sp<SkFlattenable> SkSRGBGammaColorFilter::CreateProc(SkReadBuffer& buffer) {
@@ -255,18 +276,20 @@ sk_sp<SkColorFilter> SkColorFilters::SRGBToLinearGamma() {
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
-class SkMixerColorFilter : public SkColorFilter {
+class SkMixerColorFilter : public SkColorFilterBase {
 public:
     SkMixerColorFilter(sk_sp<SkColorFilter> cf0, sk_sp<SkColorFilter> cf1, float weight)
-        : fCF0(std::move(cf0)), fCF1(std::move(cf1)), fWeight(weight)
+        : fCF0(as_CFB_sp(std::move(cf0)))
+        , fCF1(as_CFB_sp(std::move(cf1)))
+        , fWeight(weight)
     {
         SkASSERT(fCF0);
         SkASSERT(fWeight >= 0 && fWeight <= 1);
     }
 
-    uint32_t getFlags() const override {
+    uint32_t onGetFlags() const override {
-        uint32_t f0 = fCF0->getFlags();
+        uint32_t f0 = fCF0->onGetFlags();
-        uint32_t f1 = fCF1 ? fCF1->getFlags() : ~0U;
+        uint32_t f1 = fCF1 ? fCF1->onGetFlags() : ~0U;
         return f0 & f1;
     }
 
@@ -319,6 +342,8 @@ public:
     }
 #endif
 
+    SK_FLATTENABLE_HOOKS(SkMixerColorFilter)
+
 protected:
     void flatten(SkWriteBuffer& buffer) const override {
         buffer.writeFlattenable(fCF0.get());
@@ -327,15 +352,13 @@ protected:
     }
 
 private:
-    SK_FLATTENABLE_HOOKS(SkMixerColorFilter)
+    sk_sp<SkColorFilterBase> fCF0;
-
+    sk_sp<SkColorFilterBase> fCF1;
-    sk_sp<SkColorFilter> fCF0;
-    sk_sp<SkColorFilter> fCF1;
     const float             fWeight;
 
     friend class SkColorFilter;
 
-    typedef SkColorFilter INHERITED;
+    typedef SkColorFilterBase INHERITED;
 };
 
 sk_sp<SkFlattenable> SkMixerColorFilter::CreateProc(SkReadBuffer& buffer) {
@@ -374,7 +397,7 @@ sk_sp<SkColorFilter> SkColorFilters::Lerp(float weight, sk_sp<SkColorFilter> cf0
 
 #include "src/core/SkModeColorFilter.h"
 
-void SkColorFilter::RegisterFlattenables() {
+void SkColorFilterBase::RegisterFlattenables() {
     SK_REGISTER_FLATTENABLE(SkComposeColorFilter);
     SK_REGISTER_FLATTENABLE(SkModeColorFilter);
     SK_REGISTER_FLATTENABLE(SkSRGBGammaColorFilter);

src/core/SkColorFilterBase.h

@@ -0,0 +1,108 @@
+/*
+ * 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 SkColorFilterBase_DEFINED
+#define SkColorFilterBase_DEFINED
+
+#include "include/core/SkColorFilter.h"
+
+class GrColorInfo;
+class GrFragmentProcessor;
+class GrRecordingContext;
+class SkArenaAlloc;
+class SkBitmap;
+class SkColorSpace;
+struct SkStageRec;
+using GrFPResult = std::tuple<bool, std::unique_ptr<GrFragmentProcessor>>;
+
+namespace skvm {
+    class Builder;
+    struct F32;
+    struct Uniforms;
+    struct Color;
+}
+
+class SkColorFilterBase : public SkColorFilter {
+public:
+    bool appendStages(const SkStageRec& rec, bool shaderIsOpaque) const;
+
+    skvm::Color program(skvm::Builder*, skvm::Color,
+                        SkColorSpace* dstCS, skvm::Uniforms*, SkArenaAlloc*) const;
+
+    /** Returns the flags for this filter. Override in subclasses to return custom flags.
+    */
+    virtual uint32_t onGetFlags() const { return 0; }
+
+#if SK_SUPPORT_GPU
+    /**
+     *  A subclass may implement this factory function to work with the GPU backend. It returns
+     *  a GrFragmentProcessor that implements the color filter in GPU shader code.
+     *
+     *  The fragment processor receives a premultiplied input color and produces a premultiplied
+     *  output color.
+     *
+     *  A null return indicates that the color filter isn't implemented for the GPU backend.
+     */
+    virtual std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(
+            GrRecordingContext*, const GrColorInfo& dstColorInfo) const;
+#endif
+
+    bool affectsTransparentBlack() const {
+        return this->filterColor(SK_ColorTRANSPARENT) != SK_ColorTRANSPARENT;
+    }
+
+    static void RegisterFlattenables();
+
+    static SkFlattenable::Type GetFlattenableType() {
+        return kSkColorFilter_Type;
+    }
+
+    SkFlattenable::Type getFlattenableType() const override {
+        return kSkColorFilter_Type;
+    }
+
+    static sk_sp<SkColorFilter> Deserialize(const void* data, size_t size,
+                                          const SkDeserialProcs* procs = nullptr) {
+        return sk_sp<SkColorFilter>(static_cast<SkColorFilter*>(
+                                  SkFlattenable::Deserialize(
+                                  kSkColorFilter_Type, data, size, procs).release()));
+    }
+
+protected:
+    SkColorFilterBase() {}
+
+    virtual bool onAsAColorMatrix(float[20]) const;
+    virtual bool onAsAColorMode(SkColor* color, SkBlendMode* bmode) const;
+
+private:
+    virtual bool onAppendStages(const SkStageRec& rec, bool shaderIsOpaque) const = 0;
+
+    virtual skvm::Color onProgram(skvm::Builder*, skvm::Color,
+                                  SkColorSpace* dstCS, skvm::Uniforms*, SkArenaAlloc*) const = 0;
+
+    friend class SkColorFilter;
+
+    typedef SkFlattenable INHERITED;
+};
+
+static inline SkColorFilterBase* as_CFB(SkColorFilter* filter) {
+    return static_cast<SkColorFilterBase*>(filter);
+}
+
+static inline const SkColorFilterBase* as_CFB(const SkColorFilter* filter) {
+    return static_cast<const SkColorFilterBase*>(filter);
+}
+
+static inline const SkColorFilterBase* as_CFB(const sk_sp<SkColorFilter>& filter) {
+    return static_cast<SkColorFilterBase*>(filter.get());
+}
+
+static inline sk_sp<SkColorFilterBase> as_CFB_sp(sk_sp<SkColorFilter> filter) {
+    return sk_sp<SkColorFilterBase>(static_cast<SkColorFilterBase*>(filter.release()));
+}
+
+#endif

src/core/SkColorFilter_Matrix.cpp

@@ -26,7 +26,7 @@ static uint16_t ComputeFlags(const float matrix[20]) {
         && SkScalarNearlyZero (srcA[2])
         && SkScalarNearlyEqual(srcA[3], 1)
         && SkScalarNearlyZero (srcA[4])
-            ? SkColorFilter::kAlphaUnchanged_Flag : 0;
+            ? SkColorFilterBase::kAlphaUnchanged_Flag : 0;
 }
 
 SkColorFilter_Matrix::SkColorFilter_Matrix(const float array[20], Domain domain)
@@ -35,8 +35,8 @@ SkColorFilter_Matrix::SkColorFilter_Matrix(const float array[20], Domain domain)
     memcpy(fMatrix, array, 20 * sizeof(float));
 }
 
-uint32_t SkColorFilter_Matrix::getFlags() const {
+uint32_t SkColorFilter_Matrix::onGetFlags() const {
-    return this->INHERITED::getFlags() | fFlags;
+    return this->INHERITED::onGetFlags() | fFlags;
 }
 
 void SkColorFilter_Matrix::flatten(SkWriteBuffer& buffer) const {

src/core/SkColorFilter_Matrix.h

@@ -8,16 +8,15 @@
 #ifndef SkColorFilter_Matrix_DEFINED
 #define SkColorFilter_Matrix_DEFINED
 
-#include "include/core/SkColorFilter.h"
+#include "src/core/SkColorFilterBase.h"
-#include "include/core/SkFlattenable.h"
 
-class SkColorFilter_Matrix : public SkColorFilter {
+class SkColorFilter_Matrix : public SkColorFilterBase {
 public:
     enum class Domain : uint8_t { kRGBA, kHSLA };
 
     explicit SkColorFilter_Matrix(const float array[20], Domain);
 
-    uint32_t getFlags() const override;
+    uint32_t onGetFlags() const override;
 
 #if SK_SUPPORT_GPU
     std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(GrRecordingContext*,
@@ -41,7 +40,7 @@ private:
     uint16_t    fFlags;
     Domain      fDomain;
 
-    typedef SkColorFilter INHERITED;
+    typedef SkColorFilterBase INHERITED;
 };
 
 #endif

src/core/SkImageFilter.cpp

@@ -113,7 +113,7 @@ bool SkImageFilter::asAColorFilter(SkColorFilter** filterPtr) const {
     if (!this->isColorFilterNode(filterPtr)) {
         return false;
     }
-    if (nullptr != this->getInput(0) || (*filterPtr)->affectsTransparentBlack()) {
+    if (nullptr != this->getInput(0) || as_CFB(*filterPtr)->affectsTransparentBlack()) {
         (*filterPtr)->unref();
         return false;
     }

src/core/SkModeColorFilter.cpp

@@ -38,7 +38,7 @@ bool SkModeColorFilter::onAsAColorMode(SkColor* color, SkBlendMode* mode) const
     return true;
 }
 
-uint32_t SkModeColorFilter::getFlags() const {
+uint32_t SkModeColorFilter::onGetFlags() const {
     uint32_t flags = 0;
     switch (fMode) {
         case SkBlendMode::kDst:      //!< [Da, Dc]

src/core/SkModeColorFilter.h

@@ -8,22 +8,23 @@
 #ifndef SkModeColorFilter_DEFINED
 #define SkModeColorFilter_DEFINED
 
-#include "include/core/SkColorFilter.h"
+#include "src/core/SkColorFilterBase.h"
-#include "include/core/SkFlattenable.h"
 
-class SkModeColorFilter : public SkColorFilter {
+class SkModeColorFilter : public SkColorFilterBase {
 public:
     static sk_sp<SkColorFilter> Make(SkColor color, SkBlendMode mode) {
         return sk_sp<SkColorFilter>(new SkModeColorFilter(color, mode));
     }
 
-    uint32_t getFlags() const override;
+    uint32_t onGetFlags() const override;
 
 #if SK_SUPPORT_GPU
     std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(GrRecordingContext*,
                                                              const GrColorInfo&) const override;
 #endif
 
+    SK_FLATTENABLE_HOOKS(SkModeColorFilter)
+
 protected:
     SkModeColorFilter(SkColor color, SkBlendMode mode);
 
@@ -35,14 +36,12 @@ protected:
                           SkColorSpace*, skvm::Uniforms*, SkArenaAlloc*) const override;
 
 private:
-    SK_FLATTENABLE_HOOKS(SkModeColorFilter)
-
     SkColor     fColor;
     SkBlendMode fMode;
 
     friend class SkColorFilter;
 
-    typedef SkColorFilter INHERITED;
+    typedef SkColorFilterBase INHERITED;
 };
 
 #endif

src/core/SkPaint.cpp

@@ -7,7 +7,6 @@
 
 #include "include/core/SkPaint.h"
 
-#include "include/core/SkColorFilter.h"
 #include "include/core/SkData.h"
 #include "include/core/SkGraphics.h"
 #include "include/core/SkImageFilter.h"
@@ -19,6 +18,7 @@
 #include "include/core/SkTypeface.h"
 #include "include/private/SkMutex.h"
 #include "include/private/SkTo.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkColorSpaceXformSteps.h"
 #include "src/core/SkDraw.h"
@@ -517,7 +517,7 @@ const SkRect& SkPaint::doComputeFastBounds(const SkRect& origSrc,
 
 // return true if the filter exists, and may affect alpha
 static bool affects_alpha(const SkColorFilter* cf) {
-    return cf && !(cf->getFlags() & SkColorFilter::kAlphaUnchanged_Flag);
+    return cf && !as_CFB(cf)->isAlphaUnchanged();
 }
 
 // return true if the filter exists, and may affect alpha

src/core/SkPaintPriv.cpp

@@ -5,8 +5,8 @@
  * found in the LICENSE file.
  */
 
-#include "include/core/SkColorFilter.h"
 #include "include/core/SkPaint.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkPaintPriv.h"
 #include "src/core/SkXfermodePriv.h"
@@ -15,7 +15,7 @@
 
 static bool changes_alpha(const SkPaint& paint) {
     SkColorFilter* cf = paint.getColorFilter();
-    return cf && !(cf->getFlags() & SkColorFilter::kAlphaUnchanged_Flag);
+    return cf && !(as_CFB(cf)->getFlags() & SkColorFilterBase::kAlphaUnchanged_Flag);
 }
 
 bool SkPaintPriv::Overwrites(const SkPaint* paint, ShaderOverrideOpacity overrideOpacity) {

src/core/SkRasterPipelineBlitter.cpp

@@ -6,13 +6,13 @@
  */
 
 #include "include/core/SkColor.h"
-#include "include/core/SkColorFilter.h"
 #include "include/core/SkPaint.h"
 #include "include/core/SkShader.h"
 #include "include/private/SkTo.h"
 #include "src/core/SkArenaAlloc.h"
 #include "src/core/SkBlendModePriv.h"
 #include "src/core/SkBlitter.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkColorSpaceXformSteps.h"
 #include "src/core/SkMatrixProvider.h"
@@ -184,8 +184,9 @@ SkBlitter* SkRasterPipelineBlitter::Create(const SkPixmap& dst,
         SkStageRec rec = {
             colorPipeline, alloc, dst.colorType(), dst.colorSpace(), paint, nullptr, matrixProvider
         };
-        colorFilter->appendStages(rec, is_opaque);
+        as_CFB(colorFilter)->appendStages(rec, is_opaque);
-        is_opaque = is_opaque && (colorFilter->getFlags() & SkColorFilter::kAlphaUnchanged_Flag);
+        is_opaque = is_opaque
+                 && (as_CFB(colorFilter)->getFlags() & SkColorFilterBase::kAlphaUnchanged_Flag);
     }
 
 #if defined(SK_LATE_DITHER)

src/core/SkReadBuffer.h

@@ -8,7 +8,6 @@
 #ifndef SkReadBuffer_DEFINED
 #define SkReadBuffer_DEFINED
 
-#include "include/core/SkColorFilter.h"
 #include "include/core/SkDrawLooper.h"
 #include "include/core/SkFont.h"
 #include "include/core/SkImageFilter.h"
@@ -18,6 +17,7 @@
 #include "include/core/SkRefCnt.h"
 #include "include/core/SkScalar.h"
 #include "include/core/SkSerialProcs.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkMaskFilterBase.h"
 #include "src/core/SkPaintPriv.h"
 #include "src/core/SkPicturePriv.h"
@@ -108,7 +108,7 @@ public:
     template <typename T> sk_sp<T> readFlattenable() {
         return sk_sp<T>((T*)this->readFlattenable(T::GetFlattenableType()));
     }
-    sk_sp<SkColorFilter> readColorFilter() { return this->readFlattenable<SkColorFilter>(); }
+    sk_sp<SkColorFilter> readColorFilter() { return this->readFlattenable<SkColorFilterBase>(); }
     sk_sp<SkDrawLooper> readDrawLooper() { return this->readFlattenable<SkDrawLooper>(); }
     sk_sp<SkImageFilter> readImageFilter() { return this->readFlattenable<SkImageFilter>(); }
     sk_sp<SkMaskFilter> readMaskFilter() { return this->readFlattenable<SkMaskFilterBase>(); }

src/core/SkRuntimeEffect.cpp

@@ -11,6 +11,7 @@
 #include "include/private/SkChecksum.h"
 #include "include/private/SkMutex.h"
 #include "src/core/SkCanvasPriv.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkColorSpaceXformSteps.h"
 #include "src/core/SkMatrixProvider.h"
@@ -770,7 +771,7 @@ static std::vector<skvm::F32> program_fn(skvm::Builder* p,
 }
 
 
-class SkRuntimeColorFilter : public SkColorFilter {
+class SkRuntimeColorFilter : public SkColorFilterBase {
 public:
     SkRuntimeColorFilter(sk_sp<SkRuntimeEffect> effect, sk_sp<SkData> inputs)
             : fEffect(std::move(effect))

src/core/SkVMBlitter.cpp

@@ -9,6 +9,7 @@
 #include "include/private/SkMacros.h"
 #include "src/core/SkArenaAlloc.h"
 #include "src/core/SkBlendModePriv.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkColorSpaceXformSteps.h"
 #include "src/core/SkCoreBlitters.h"
@@ -406,7 +407,7 @@ namespace {
     }
 
 
-    struct NoopColorFilter : public SkColorFilter {
+    struct NoopColorFilter : public SkColorFilterBase {
         skvm::Color onProgram(skvm::Builder*, skvm::Color c,
                               SkColorSpace*, skvm::Uniforms*, SkArenaAlloc*) const override {
             return c;

src/effects/SkHighContrastFilter.cpp

@@ -9,6 +9,7 @@
 #include "include/effects/SkHighContrastFilter.h"
 #include "include/private/SkColorData.h"
 #include "src/core/SkArenaAlloc.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkEffectPriv.h"
 #include "src/core/SkRasterPipeline.h"
@@ -25,7 +26,7 @@
 
 using InvertStyle = SkHighContrastConfig::InvertStyle;
 
-class SkHighContrast_Filter : public SkColorFilter {
+class SkHighContrast_Filter : public SkColorFilterBase {
 public:
     SkHighContrast_Filter(const SkHighContrastConfig& config) {
         fConfig = config;

src/effects/SkLumaColorFilter.cpp

@@ -8,6 +8,7 @@
 #include "include/core/SkString.h"
 #include "include/effects/SkLumaColorFilter.h"
 #include "include/private/SkColorData.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkEffectPriv.h"
 #include "src/core/SkRasterPipeline.h"
 #include "src/core/SkVM.h"
@@ -19,39 +20,50 @@
 #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
 #endif
 
-bool SkLumaColorFilter::onAppendStages(const SkStageRec& rec, bool shaderIsOpaque) const {
+class SkLumaColorFilterImpl : public SkColorFilterBase {
+public:
+#if SK_SUPPORT_GPU
+    std::unique_ptr<GrFragmentProcessor> asFragmentProcessor(GrRecordingContext*,
+                                                             const GrColorInfo&) const override {
+        return GrLumaColorFilterEffect::Make(/*inputFP=*/nullptr);
+    }
+#endif
+
+    static sk_sp<SkFlattenable> CreateProc(SkReadBuffer&) {
+        return SkLumaColorFilter::Make();
+    }
+
+protected:
+    void flatten(SkWriteBuffer&) const override {}
+
+private:
+    Factory getFactory() const override { return CreateProc; }
+    const char* getTypeName() const override { return "SkLumaColorFilter"; }
+
+    bool onAppendStages(const SkStageRec& rec, bool shaderIsOpaque) const override {
         rec.fPipeline->append(SkRasterPipeline::bt709_luminance_or_luma_to_alpha);
         rec.fPipeline->append(SkRasterPipeline::clamp_0);
         rec.fPipeline->append(SkRasterPipeline::clamp_1);
         return true;
-}
+    }
 
-skvm::Color SkLumaColorFilter::onProgram(skvm::Builder* p, skvm::Color c,
+    skvm::Color onProgram(skvm::Builder* p, skvm::Color c, SkColorSpace*, skvm::Uniforms*,
-                                         SkColorSpace* dstCS,
+                          SkArenaAlloc*) const override {
-                                         skvm::Uniforms* uniforms, SkArenaAlloc* alloc) const {
         return {
             p->splat(0.0f),
             p->splat(0.0f),
             p->splat(0.0f),
             clamp01(c.r * 0.2126f + c.g * 0.7152f + c.b * 0.0722f),
         };
-}
+    }
+
+    typedef SkColorFilterBase INHERITED;
+};
 
 sk_sp<SkColorFilter> SkLumaColorFilter::Make() {
-    return sk_sp<SkColorFilter>(new SkLumaColorFilter);
+    return sk_sp<SkColorFilter>(new SkLumaColorFilterImpl);
 }
 
-SkLumaColorFilter::SkLumaColorFilter() : INHERITED() {}
+void SkLumaColorFilter::RegisterFlattenable() {
-
+    SkFlattenable::Register("SkLumaColorFilter", SkLumaColorFilterImpl::CreateProc);
-sk_sp<SkFlattenable> SkLumaColorFilter::CreateProc(SkReadBuffer&) {
-    return Make();
 }
-
-void SkLumaColorFilter::flatten(SkWriteBuffer&) const {}
-
-#if SK_SUPPORT_GPU
-std::unique_ptr<GrFragmentProcessor> SkLumaColorFilter::asFragmentProcessor(
-        GrRecordingContext*, const GrColorInfo&) const {
-    return GrLumaColorFilterEffect::Make(/*inputFP=*/nullptr);
-}
-#endif

src/effects/SkTableColorFilter.cpp

@@ -13,6 +13,7 @@
 #include "include/private/SkColorData.h"
 #include "include/private/SkTo.h"
 #include "src/core/SkArenaAlloc.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkEffectPriv.h"
 #include "src/core/SkRasterPipeline.h"
 #include "src/core/SkReadBuffer.h"
@@ -54,7 +55,7 @@ static const uint8_t gIdentityTable[] = {
     0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
 };
 
-class SkTable_ColorFilter : public SkColorFilter {
+class SkTable_ColorFilter : public SkColorFilterBase {
 public:
     SkTable_ColorFilter(const uint8_t tableA[], const uint8_t tableR[],
                         const uint8_t tableG[], const uint8_t tableB[]) {
@@ -377,7 +378,7 @@ std::unique_ptr<GrFragmentProcessor> ColorTableEffect::TestCreate(GrProcessorTes
         (flags & (1 << 3)) ? luts[3] : nullptr
     ));
     sk_sp<SkColorSpace> colorSpace = GrTest::TestColorSpace(d->fRandom);
-    auto fp = filter->asFragmentProcessor(
+    auto fp = as_CFB(filter)->asFragmentProcessor(
             d->context(),
             GrColorInfo(GrColorType::kRGBA_8888, kUnknown_SkAlphaType, std::move(colorSpace)));
     SkASSERT(fp);

src/effects/imagefilters/SkColorFilterImageFilter.cpp

@@ -9,6 +9,7 @@
 
 #include "include/core/SkCanvas.h"
 #include "include/core/SkColorFilter.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkImageFilter_Base.h"
 #include "src/core/SkReadBuffer.h"
 #include "src/core/SkSpecialImage.h"
@@ -89,7 +90,7 @@ sk_sp<SkSpecialImage> SkColorFilterImageFilterImpl::onFilterImage(const Context&
     sk_sp<SkSpecialImage> input(this->filterInput(0, ctx, &inputOffset));
 
     SkIRect inputBounds;
-    if (fColorFilter->affectsTransparentBlack()) {
+    if (as_CFB(fColorFilter)->affectsTransparentBlack()) {
         // If the color filter affects transparent black, the bounds are the entire clip.
         inputBounds = ctx.clipBounds();
     } else if (!input) {
@@ -119,7 +120,7 @@ sk_sp<SkSpecialImage> SkColorFilterImageFilterImpl::onFilterImage(const Context&
 
     // TODO: it may not be necessary to clear or drawPaint inside the input bounds
     // (see skbug.com/5075)
-    if (fColorFilter->affectsTransparentBlack()) {
+    if (as_CFB(fColorFilter)->affectsTransparentBlack()) {
         // The subsequent input->draw() call may not fill the entire canvas. For filters which
         // affect transparent black, ensure that the filter is applied everywhere.
         paint.setColor(SK_ColorTRANSPARENT);
@@ -153,5 +154,5 @@ bool SkColorFilterImageFilterImpl::onIsColorFilterNode(SkColorFilter** filter) c
 }
 
 bool SkColorFilterImageFilterImpl::affectsTransparentBlack() const {
-    return fColorFilter->affectsTransparentBlack();
+    return as_CFB(fColorFilter)->affectsTransparentBlack();
 }

src/gpu/SkGr.cpp

@@ -20,6 +20,7 @@
 #include "include/private/SkTemplates.h"
 #include "src/core/SkAutoMalloc.h"
 #include "src/core/SkBlendModePriv.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorSpacePriv.h"
 #include "src/core/SkImagePriv.h"
 #include "src/core/SkMaskFilterBase.h"
@@ -346,7 +347,7 @@ static inline bool skpaint_to_grpaint_impl(GrRecordingContext* context,
             SkColorSpace* dstCS = dstColorInfo.colorSpace();
             grPaint->setColor4f(colorFilter->filterColor4f(origColor, dstCS, dstCS).premul());
         } else {
-            auto cfFP = colorFilter->asFragmentProcessor(context, dstColorInfo);
+            auto cfFP = as_CFB(colorFilter)->asFragmentProcessor(context, dstColorInfo);
             if (cfFP) {
                 grPaint->addColorFragmentProcessor(std::move(cfFP));
             } else {

src/gpu/effects/GrSkSLFP.cpp

@@ -258,6 +258,7 @@ GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSkSLFP);
 #include "include/effects/SkArithmeticImageFilter.h"
 #include "include/effects/SkOverdrawColorFilter.h"
 #include "include/gpu/GrContext.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/gpu/effects/generated/GrConstColorProcessor.h"
 
 extern const char* SKSL_ARITHMETIC_SRC;
@@ -291,8 +292,8 @@ std::unique_ptr<GrFragmentProcessor> GrSkSLFP::TestCreate(GrProcessorTestData* d
             for (SkColor& c : colors) {
                 c = d->fRandom->nextU();
             }
-            return SkOverdrawColorFilter::MakeWithSkColors(colors)
+            auto filter = SkOverdrawColorFilter::MakeWithSkColors(colors);
-                ->asFragmentProcessor(d->context(), GrColorInfo{});
+            return as_CFB(filter)->asFragmentProcessor(d->context(), GrColorInfo{});
         }
     }
     SK_ABORT("unreachable");

src/ports/SkGlobalInitialization_default.cpp

@@ -73,8 +73,8 @@
 
         // Color filters.
         SkColorFilter_Matrix::RegisterFlattenables();
-        SK_REGISTER_FLATTENABLE(SkLumaColorFilter);
+        SkLumaColorFilter::RegisterFlattenable();
-        SkColorFilter::RegisterFlattenables();
+        SkColorFilterBase::RegisterFlattenables();
         SkHighContrastFilter::RegisterFlattenables();
         SkTableColorFilter::RegisterFlattenables();
 

src/shaders/SkColorFilterShader.cpp

@@ -8,6 +8,7 @@
 #include "include/core/SkShader.h"
 #include "include/core/SkString.h"
 #include "src/core/SkArenaAlloc.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkRasterPipeline.h"
 #include "src/core/SkReadBuffer.h"
 #include "src/core/SkVM.h"
@@ -22,7 +23,7 @@ SkColorFilterShader::SkColorFilterShader(sk_sp<SkShader> shader,
                                          float alpha,
                                          sk_sp<SkColorFilter> filter)
     : fShader(std::move(shader))
-    , fFilter(std::move(filter))
+    , fFilter(as_CFB_sp(std::move(filter)))
     , fAlpha (alpha)
 {
     SkASSERT(fShader);
@@ -39,9 +40,7 @@ sk_sp<SkFlattenable> SkColorFilterShader::CreateProc(SkReadBuffer& buffer) {
 }
 
 bool SkColorFilterShader::isOpaque() const {
-    return fShader->isOpaque()
+    return fShader->isOpaque() && fAlpha == 1.0f && as_CFB(fFilter)->isAlphaUnchanged();
-        && fAlpha == 1.0f
-        && (fFilter->getFlags() & SkColorFilter::kAlphaUnchanged_Flag) != 0;
 }
 
 void SkColorFilterShader::flatten(SkWriteBuffer& buffer) const {

src/shaders/SkColorFilterShader.h

@@ -8,7 +8,7 @@
 #ifndef SkColorFilterShader_DEFINED
 #define SkColorFilterShader_DEFINED
 
-#include "include/core/SkColorFilter.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/shaders/SkShaderBase.h"
 
 class SkArenaAlloc;
@@ -34,7 +34,7 @@ private:
     SK_FLATTENABLE_HOOKS(SkColorFilterShader)
 
     sk_sp<SkShader>          fShader;
-    sk_sp<SkColorFilter> fFilter;
+    sk_sp<SkColorFilterBase> fFilter;
     float                    fAlpha;
 
     typedef SkShaderBase INHERITED;

src/utils/SkShadowUtils.cpp

@@ -17,6 +17,7 @@
 #include "include/private/SkIDChangeListener.h"
 #include "include/utils/SkRandom.h"
 #include "src/core/SkBlurMask.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkColorFilterPriv.h"
 #include "src/core/SkDevice.h"
 #include "src/core/SkDrawShadowInfo.h"
@@ -40,7 +41,7 @@
 *                           Final result is black with alpha of Gaussian(B)*G.
 *                           The assumption is that the original color's alpha is 1.
 */
-class SkGaussianColorFilter : public SkColorFilter {
+class SkGaussianColorFilter : public SkColorFilterBase {
 public:
     SkGaussianColorFilter() : INHERITED() {}
 
@@ -73,7 +74,7 @@ protected:
 private:
     SK_FLATTENABLE_HOOKS(SkGaussianColorFilter)
 
-    typedef SkColorFilter INHERITED;
+    typedef SkColorFilterBase INHERITED;
 };
 
 sk_sp<SkFlattenable> SkGaussianColorFilter::CreateProc(SkReadBuffer&) {

tests/FlattenDrawableTest.cpp

@@ -294,7 +294,7 @@ DEF_TEST(Flattenable_EmptyDeserialze, reporter) {
     test(SkPathEffect);
     test(SkMaskFilter);
     test(SkShaderBase); // todo: make this just be shader!
-    test(SkColorFilter);
+    test(SkColorFilterBase);
     test(SkImageFilter);
     test(SkDrawLooper);
     #undef test

tests/ImageFilterTest.cpp

@@ -18,6 +18,7 @@
 #include "include/effects/SkImageFilters.h"
 #include "include/effects/SkPerlinNoiseShader.h"
 #include "include/effects/SkTableColorFilter.h"
+#include "src/core/SkColorFilterBase.h"
 #include "src/core/SkImageFilter_Base.h"
 #include "src/core/SkReadBuffer.h"
 #include "src/core/SkSpecialImage.h"
@@ -715,7 +716,7 @@ static void test_fail_affects_transparent_black(skiatest::Reporter* reporter, Gr
     SkImageFilter_Base::Context ctx(SkMatrix::I(), SkIRect::MakeXYWH(0, 0, 1, 1), nullptr,
                                     kN32_SkColorType, nullptr, source.get());
     sk_sp<SkColorFilter> green(SkColorFilters::Blend(SK_ColorGREEN, SkBlendMode::kSrc));
-    SkASSERT(green->affectsTransparentBlack());
+    SkASSERT(as_CFB(green)->affectsTransparentBlack());
     sk_sp<SkImageFilter> greenFilter(SkImageFilters::ColorFilter(std::move(green),
                                                                  std::move(failFilter)));
     SkIPoint offset;
@@ -1526,7 +1527,7 @@ DEF_TEST(ImageFilterCanComputeFastBounds, reporter) {
         {
             SkColorFilter* grayCF;
             REPORTER_ASSERT(reporter, gray->asAColorFilter(&grayCF));
-            REPORTER_ASSERT(reporter, !grayCF->affectsTransparentBlack());
+            REPORTER_ASSERT(reporter, !as_CFB(grayCF)->affectsTransparentBlack());
             grayCF->unref();
         }
         REPORTER_ASSERT(reporter, gray->canComputeFastBounds());
@@ -1545,7 +1546,7 @@ DEF_TEST(ImageFilterCanComputeFastBounds, reporter) {
         sk_sp<SkColorFilter> greenCF(SkColorFilters::Matrix(greenMatrix));
         sk_sp<SkImageFilter> green(SkImageFilters::ColorFilter(greenCF, nullptr));
 
-        REPORTER_ASSERT(reporter, greenCF->affectsTransparentBlack());
+        REPORTER_ASSERT(reporter,as_CFB( greenCF)->affectsTransparentBlack());
         REPORTER_ASSERT(reporter, !green->canComputeFastBounds());
 
         sk_sp<SkImageFilter> greenBlur(SkImageFilters::Blur(SK_Scalar1, SK_Scalar1,
@@ -1562,13 +1563,13 @@ DEF_TEST(ImageFilterCanComputeFastBounds, reporter) {
     sk_sp<SkColorFilter> identityCF(SkTableColorFilter::MakeARGB(identity, identity,
                                                                  identity, allOne));
     sk_sp<SkImageFilter> identityFilter(SkImageFilters::ColorFilter(identityCF, nullptr));
-    REPORTER_ASSERT(reporter, !identityCF->affectsTransparentBlack());
+    REPORTER_ASSERT(reporter, !as_CFB(identityCF)->affectsTransparentBlack());
     REPORTER_ASSERT(reporter, identityFilter->canComputeFastBounds());
 
     sk_sp<SkColorFilter> forceOpaqueCF(SkTableColorFilter::MakeARGB(allOne, identity,
                                                                     identity, identity));
     sk_sp<SkImageFilter> forceOpaque(SkImageFilters::ColorFilter(forceOpaqueCF, nullptr));
-    REPORTER_ASSERT(reporter, forceOpaqueCF->affectsTransparentBlack());
+    REPORTER_ASSERT(reporter, as_CFB(forceOpaqueCF)->affectsTransparentBlack());
     REPORTER_ASSERT(reporter, !forceOpaque->canComputeFastBounds());
 }
 

tests/SerializationTest.cpp

@@ -304,7 +304,8 @@ static void TestColorFilterSerialization(skiatest::Reporter* reporter) {
     }
     auto colorFilter(SkTableColorFilter::Make(table));
     sk_sp<SkColorFilter> copy(
-        TestFlattenableSerialization<SkColorFilter>(colorFilter.get(), true, reporter));
+        TestFlattenableSerialization<SkColorFilterBase>((SkColorFilterBase*)colorFilter.get(),
+                                                        true, reporter));
 }
 
 static SkBitmap draw_picture(SkPicture& picture) {