diff options
author | Yang Zhang <yang.zhang@linaro.org> | 2016-09-23 11:17:15 +0800 |
---|---|---|
committer | Ningsheng Jian <ningsheng.jian@linaro.org> | 2016-11-02 04:15:17 +0000 |
commit | ead42d0823f9921041dbd44882ed2062c0a9f74f (patch) | |
tree | 0963333f8726b2acd8393224f4a84695f2db096f /src/main/java/org/linaro/benchmarks/TestRGBToCmyk.java | |
parent | 7de7b54b6f037e54fa2ce5d3a2939357a2e2ebb7 (diff) |
Add samples to measure vector ldn/stn performance
Add the test cases as follows:
1. 2D vector add and mul for int/short
2. 3D vector add and mul for int/short
3. 4D vector add and mul for int/short
4. RGB To Cmyk for ld3/st4
Change-Id: I68079a8bb2f50bf0d07c3a382a1d7208b95ff9f7
Diffstat (limited to 'src/main/java/org/linaro/benchmarks/TestRGBToCmyk.java')
-rw-r--r-- | src/main/java/org/linaro/benchmarks/TestRGBToCmyk.java | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/main/java/org/linaro/benchmarks/TestRGBToCmyk.java b/src/main/java/org/linaro/benchmarks/TestRGBToCmyk.java new file mode 100644 index 0000000..b9bc897 --- /dev/null +++ b/src/main/java/org/linaro/benchmarks/TestRGBToCmyk.java @@ -0,0 +1,53 @@ +package org.linaro.benchmarks; + +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 = 256 * 1024; + 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() { + RGBToCmyk(input, output, LENGTH); + } + +} |