1 files changed, 73 insertions, 0 deletions
diff --git a/src/main/java/org/linaro/benchmarks/vector/TestRGBToCmyk.java b/src/main/java/org/linaro/benchmarks/vector/TestRGBToCmyk.java
new file mode 100644
index 0000000..e56a356
--- /dev/null
+++ b/src/main/java/org/linaro/benchmarks/vector/TestRGBToCmyk.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2016 Linaro Limited. All rights received.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.linaro.benchmarks.vector;
+
+import org.openjdk.jmh.annotations.*;
+import java.util.concurrent.TimeUnit;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Benchmark)
+
+public class TestRGBToCmyk
+{
+  static final int LENGTH = 1024;
+  static final int COUNT = 128;
+  static byte input[] = new byte[LENGTH*3];
+  static byte output[] = new byte[LENGTH*4];
+
+  public static void TestRGBToCmykInit()
+  {
+    for (int i = 0; i < LENGTH*3; i++) {
+      input[i] = (byte)i;
+    }
+  }
+
+  public static void RGBToCmyk(byte[] rgb, byte[] cmyk, int cnt)
+  {
+    int i;
+    int c, m, y, k;
+    for (i = 0; i < cnt; i++) {
+      /* calculate complementary colors */
+      c = 255 - rgb[i*3];
+      m = 255 - rgb[i*3+1];
+      y = 255 - rgb[i*3+2];
+      /* find the black level k */
+      k = Math.min(Math.min(c, m), y);
+      /* correct complementary color lever based on k */
+      cmyk[i*4] = (byte)(c - k);
+      cmyk[i*4+1] = (byte)(m - k);
+      cmyk[i*4+2] = (byte)(y - k);
+      cmyk[i*4+3] = (byte)(k);
+    }
+  }
+
+  @Setup
+  public void setup()
+  {
+    TestRGBToCmykInit();
+  }
+
+  @Benchmark
+  public void testRGBToCmyk() {
+    for (int i = 0; i < COUNT; i++) {
+      RGBToCmyk(input, output, LENGTH);
+    }
+  }
+
+}