record drawfilters

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2303033002

Review-Url: https://codereview.chromium.org/2303033002

gm/drawfilter.cpp

@@ -57,12 +57,9 @@ protected:
         SkRect r = { 20, 20, 100, 100 };
         canvas->setDrawFilter(nullptr);
         canvas->drawRect(r, p);
-        TestFilter redNoBlur;
-        canvas->setDrawFilter(&redNoBlur);
+        canvas->setDrawFilter(new TestFilter)->unref();
         canvas->translate(120.0f, 40.0f);
         canvas->drawRect(r, p);
-
-        // Must unset if the DrawFilter is from the stack to avoid refcount errors!
         canvas->setDrawFilter(nullptr);
     }
 

src/core/SkLiteDL.cpp

@@ -7,6 +7,7 @@
 
 #include "SkCanvas.h"
 #include "SkData.h"
+#include "SkDrawFilter.h"
 #include "SkImageFilter.h"
 #include "SkLiteDL.h"
 #include "SkMath.h"
@@ -52,7 +53,7 @@ static void make_threadsafe(SkPath* path, SkMatrix* matrix) {
 
 namespace {
 #define TYPES(M)                                                                \
-    M(Save) M(Restore) M(SaveLayer)                                             \
+    M(SetDrawFilter) M(Save) M(Restore) M(SaveLayer)                            \
     M(Concat) M(SetMatrix) M(Translate) M(TranslateZ)                           \
     M(ClipPath) M(ClipRect) M(ClipRRect) M(ClipRegion)                          \
     M(DrawPaint) M(DrawPath) M(DrawRect) M(DrawRegion) M(DrawOval) M(DrawArc)   \
@@ -75,6 +76,19 @@ namespace {
     };
     static_assert(sizeof(Op) == 4, "");
 
+    struct SetDrawFilter final : Op {
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+        static const auto kType = Type::SetDrawFilter;
+        SetDrawFilter(SkDrawFilter* df) : drawFilter(sk_ref_sp(df)) {}
+        sk_sp<SkDrawFilter> drawFilter;
+#endif
+        void draw(SkCanvas* c, const SkMatrix&) {
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+            c->setDrawFilter(drawFilter.get());
+#endif
+        }
+    };
+
     struct Save final : Op {
         static const auto kType = Type::Save;
         void draw(SkCanvas* c, const SkMatrix&) { c->save(); }
@@ -566,6 +580,12 @@ inline void SkLiteDL::map(const Fn fns[], Args... args) {
     }
 }
 
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+void SkLiteDL::setDrawFilter(SkDrawFilter* df) {
+    this->push<SetDrawFilter>(0, df);
+}
+#endif
+
 void SkLiteDL::   save() { this->push   <Save>(0); }
 void SkLiteDL::restore() { this->push<Restore>(0); }
 void SkLiteDL::saveLayer(const SkRect* bounds, const SkPaint* paint,

src/core/SkLiteDL.h

@@ -23,6 +23,10 @@ public:
     void makeThreadsafe();
     bool empty() const { return fUsed == 0; }
 
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+    void setDrawFilter(SkDrawFilter*);
+#endif
+
     void save();
     void saveLayer(const SkRect*, const SkPaint*, const SkImageFilter*, SkCanvas::SaveLayerFlags);
     void restore();

src/core/SkLiteRecorder.cpp

@@ -22,6 +22,13 @@ sk_sp<SkSurface> SkLiteRecorder::onNewSurface(const SkImageInfo&, const SkSurfac
     return nullptr;
 }
 
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+SkDrawFilter* SkLiteRecorder::setDrawFilter(SkDrawFilter* df) {
+    fDL->setDrawFilter(df);
+    return SkCanvas::setDrawFilter(df);
+}
+#endif
+
 void SkLiteRecorder::willSave() { fDL->save(); }
 SkCanvas::SaveLayerStrategy SkLiteRecorder::getSaveLayerStrategy(const SaveLayerRec& rec) {
     fDL->saveLayer(rec.fBounds, rec.fPaint, rec.fBackdrop, rec.fSaveLayerFlags);

src/core/SkLiteRecorder.h

@@ -19,6 +19,10 @@ public:
 
     sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
 
+#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
+    SkDrawFilter* setDrawFilter(SkDrawFilter*) override;
+#endif
+
     void willSave() override;
     SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
     void willRestore() override;