Benchmark rotated rect with AA/noAA

Using this benchmark, we verify that AA is about 4x slower than noAA in
path_fill_big_rotated_rect. This is what I aim to improve in the next
CL.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2087453003

Review-Url: https://codereview.chromium.org/2087453003

1 files changed, 36 insertions, 0 deletions

diff --git a/bench/PathBench.cpp b/bench/PathBench.cpp
index d0ede02ab7..67e002ba24 100644
--- a/bench/PathBench.cpp
+++ b/bench/PathBench.cpp
@@ -112,6 +112,37 @@ private:
     typedef PathBench INHERITED;
 };
 
+class RotatedRectBench : public PathBench {
+public:
+    RotatedRectBench(Flags flags, bool aa, int degrees) : INHERITED(flags) {
+        fAA = aa;
+        fDegrees = degrees;
+    }
+
+    void appendName(SkString* name) override {
+        SkString suffix;
+        suffix.printf("rotated_rect_%s_%d", fAA ? "aa" : "noaa", fDegrees);
+        name->append(suffix);
+    }
+
+    void makePath(SkPath* path) override {
+        SkRect r = { 10, 10, 20, 20 };
+        path->addRect(r);
+        SkMatrix rotateMatrix;
+        rotateMatrix.setRotate((SkScalar)fDegrees);
+        path->transform(rotateMatrix);
+    }
+
+    virtual void setupPaint(SkPaint* paint) override {
+        PathBench::setupPaint(paint);
+        paint->setAntiAlias(fAA);
+    }
+private:
+    typedef PathBench INHERITED;
+    int fDegrees;
+    bool fAA;
+};
+
 class OvalPathBench : public PathBench {
 public:
     OvalPathBench(Flags flags) : INHERITED(flags) {}
@@ -1003,6 +1034,11 @@ DEF_BENCH( return new RectPathBench(FLAGS01); )
 DEF_BENCH( return new RectPathBench(FLAGS10); )
 DEF_BENCH( return new RectPathBench(FLAGS11); )
 
+DEF_BENCH( return new RotatedRectBench(FLAGS00, false, 45));
+DEF_BENCH( return new RotatedRectBench(FLAGS10, false, 45));
+DEF_BENCH( return new RotatedRectBench(FLAGS00, true, 45));
+DEF_BENCH( return new RotatedRectBench(FLAGS10, true, 45));
+
 DEF_BENCH( return new OvalPathBench(FLAGS00); )
 DEF_BENCH( return new OvalPathBench(FLAGS01); )
 DEF_BENCH( return new OvalPathBench(FLAGS10); )