Add HardStopGradientBench_ScaleNumHardStops.cpp

bench/HardStopGradientBench_ScaleNumColors.cpp

Index: bench/HardStopGradientBench_ScaleNumColors.cpp
diff --git a/bench/HardStopGradientBench.cpp b/bench/HardStopGradientBench_ScaleNumColors.cpp
similarity index 50%
rename from bench/HardStopGradientBench.cpp
rename to bench/HardStopGradientBench_ScaleNumColors.cpp
index 3a323fec6fade66f9ea8428158cea8b068f5ad6d..acfa10b1b7313347f8bd8f35c46b2b82abcae397 100644
--- a/bench/HardStopGradientBench.cpp
+++ b/bench/HardStopGradientBench_ScaleNumColors.cpp
@@ -28,10 +28,10 @@ static const char* get_tilemode_name(SkShader::TileMode tilemode) {
     }
 }
 
-class HardStopGradientBench : public Benchmark {
+class HardStopGradientBench_ScaleNumColors : public Benchmark {
 public:
-    HardStopGradientBench(SkShader::TileMode tilemode, int count) {
-        fName.printf("hardstop_%s_%03d_colors", get_tilemode_name(tilemode), count);
+    HardStopGradientBench_ScaleNumColors(SkShader::TileMode tilemode, int count) {
+        fName.printf("hardstop_scale_num_colors_%s_%03d_colors", get_tilemode_name(tilemode), count);
 
         fTileMode   = tilemode;
         fColorCount = count;
@@ -45,6 +45,13 @@ public:
         return SkIPoint::Make(kSize, kSize);
     }
 
+    /*
+     * Set up a linear gradient from left to right with
+     * fColorCount "evenly spaced" colors. The positions
+     * are also evenly spaced, with the exception of the
+     * first two; these create a hard stop in order to
+     * trigger the hard stop code.
+     */
     void onPreDraw(SkCanvas* canvas) override {
         // Left to right
         SkPoint points[2] = {
@@ -97,28 +104,28 @@ private:
 };
 
 // Clamp
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode,   3);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode,   4);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode,   5);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode,  10);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode,  25);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode,  50);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kClamp_TileMode, 100);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode,   3);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode,   4);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode,   5);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode,  10);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode,  25);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode,  50);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kClamp_TileMode, 100);)
 
 // Repeat
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode,   3);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode,   4);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode,   5);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode,  10);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode,  25);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode,  50);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kRepeat_TileMode, 100);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode,   3);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode,   4);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode,   5);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode,  10);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode,  25);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode,  50);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kRepeat_TileMode, 100);)
 
 // Mirror
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode,   3);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode,   4);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode,   5);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode,  10);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode,  25);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode,  50);)
-DEF_BENCH(return new HardStopGradientBench(SkShader::kMirror_TileMode, 100);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode,   3);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode,   4);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode,   5);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode,  10);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode,  25);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode,  50);)
+DEF_BENCH(return new HardStopGradientBench_ScaleNumColors(SkShader::kMirror_TileMode, 100);)