#577 Fix TGA subsampling + bonus metadata fix and palette conversion.

imageio/imageio-tga/src/test/java/com/twelvemonkeys/imageio/plugins/tga/TGAImageReaderTest.java

@@ -32,11 +32,19 @@ package com.twelvemonkeys.imageio.plugins.tga;
 
 import com.twelvemonkeys.imageio.util.ImageReaderAbstractTest;
 
+import org.junit.Test;
+
+import javax.imageio.ImageReadParam;
+import javax.imageio.ImageReader;
 import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.stream.ImageInputStream;
 import java.awt.*;
+import java.io.IOException;
 import java.util.Arrays;
 import java.util.List;
 
+import static org.junit.Assert.assertNotNull;
+
 /**
  * TGAImageReaderTest
  *
@@ -104,4 +112,23 @@ public class TGAImageReaderTest extends ImageReaderAbstractTest<TGAImageReader>
                 "image/targa", "image/x-targa"
         );
     }
+
+    @Test
+    public void testSubsampling() throws IOException {
+        ImageReader reader = createReader();
+        ImageReadParam param = reader.getDefaultReadParam();
+        param.setSourceSubsampling(3, 5, 0, 0);
+
+        for (TestData testData : getTestData()) {
+            try (ImageInputStream input = testData.getInputStream()) {
+                reader.setInput(input);
+                assertNotNull(reader.read(0, param));
+            }
+            finally {
+                reader.reset();
+            }
+        }
+
+        reader.dispose();
+    }
 }