From d70c2d978c20d95062f505f31677ad724eb29de0 Mon Sep 17 00:00:00 2001
From: Mickey Rose <mickey.rose@seznam.cz>
Date: Tue, 1 Mar 2016 17:09:37 +0100
Subject: [PATCH] add benchmark for mapnik::util::normalize_angle

---
 benchmark/run                     |  1 +
 benchmark/src/normalize_angle.cpp | 69 +++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100644 benchmark/src/normalize_angle.cpp

diff --git a/benchmark/run b/benchmark/run
index b296fc8ce..2d4089371 100755
--- a/benchmark/run
+++ b/benchmark/run
@@ -28,6 +28,7 @@ run test_expression_parse 10 10000
 run test_face_ptr_creation 10 1000
 run test_font_registration 10 100
 run test_offset_converter 10 1000
+#run normalize_angle 0 1000000 --min-duration=0.2
 
 # commented since this is really slow on travis
 : '
diff --git a/benchmark/src/normalize_angle.cpp b/benchmark/src/normalize_angle.cpp
new file mode 100644
index 000000000..bc137a95f
--- /dev/null
+++ b/benchmark/src/normalize_angle.cpp
@@ -0,0 +1,69 @@
+#include "bench_framework.hpp"
+
+#include <mapnik/util/math.hpp>
+
+template <typename T>
+struct bench_func : benchmark::test_case
+{
+    T (* const func_)(T);
+    T const value_;
+
+    bench_func(mapnik::parameters const& params, T (*func)(T), T value)
+        : test_case(params), func_(func), value_(value) {}
+
+    bool validate() const { return true; }
+
+    bool operator() () const
+    {
+        for (auto i = this->iterations_; i-- > 0; )
+        {
+            func_(value_);
+        }
+        return true;
+    }
+};
+
+#define BENCH_FUNC1(func, value) \
+        run<bench_func<double>>(#func "(" #value ")", func, value)
+
+int main(int argc, char** argv)
+{
+    return benchmark::sequencer(argc, argv)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +3)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +6)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +9)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +12)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +15)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +20)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +30)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +40)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +50)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +70)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +90)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +110)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +130)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +157)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +209)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +314)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +628)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, +942)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -3)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -6)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -9)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -12)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -15)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -20)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -30)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -40)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -50)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -70)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -90)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -110)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -130)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -157)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -209)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -314)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -628)
+        .BENCH_FUNC1(mapnik::util::normalize_angle, -942)
+        .done();
+}