Add bench to test float to fixed conversion
R=reed@google.com
Review URL: https://codereview.chromium.org/19773006
git-svn-id: http://skia.googlecode.com/svn/trunk@10155 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/MathBench.cpp b/bench/MathBench.cpp
index 1fc5705..32a89d6 100644
--- a/bench/MathBench.cpp
+++ b/bench/MathBench.cpp
@@ -480,6 +480,48 @@
///////////////////////////////////////////////////////////////////////////////
+class FixedMathBench : public SkBenchmark {
+ enum {
+ N = SkBENCHLOOP(1000),
+ NN = SkBENCHLOOP(1000),
+ };
+ float fData[N];
+ SkFixed fResult[N];
+public:
+
+ FixedMathBench(void* param) : INHERITED(param) {
+ SkRandom rand;
+ for (int i = 0; i < N; ++i) {
+ fData[i] = rand.nextSScalar1();
+ }
+
+ fIsRendering = false;
+ }
+
+protected:
+ virtual void onDraw(SkCanvas*) {
+ for (int j = 0; j < NN; ++j) {
+ for (int i = 0; i < N - 4; ++i) {
+ fResult[i] = SkFloatToFixed(fData[i]);
+ }
+ }
+
+ SkPaint paint;
+ if (paint.getAlpha() == 0) {
+ SkDebugf("%d\n", fResult[0]);
+ }
+ }
+
+ virtual const char* onGetName() {
+ return "float_to_fixed";
+ }
+
+private:
+ typedef SkBenchmark INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
DEF_BENCH( return new NoOpMathBench(p); )
DEF_BENCH( return new SlowISqrtMathBench(p); )
DEF_BENCH( return new FastISqrtMathBench(p); )
@@ -501,3 +543,5 @@
DEF_BENCH( return new CLZBench(p, true); )
DEF_BENCH( return new NormalizeBench(p); )
+
+DEF_BENCH( return new FixedMathBench(p); )