From 31117c7cea5d262e182acb5643b7104d4fc49a16 Mon Sep 17 00:00:00 2001
From: Rolf Howarth <rhowarth@fastmail.co.uk>
Date: Sat, 5 Apr 2025 10:34:37 +0200
Subject: [PATCH] Add unit test for QuickTime mask issue

---
 .../plugins/pict/PICTImageReaderTest.java      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/imageio/imageio-pict/src/test/java/com/twelvemonkeys/imageio/plugins/pict/PICTImageReaderTest.java b/imageio/imageio-pict/src/test/java/com/twelvemonkeys/imageio/plugins/pict/PICTImageReaderTest.java
index e61ff473..05bad6d4 100644
--- a/imageio/imageio-pict/src/test/java/com/twelvemonkeys/imageio/plugins/pict/PICTImageReaderTest.java
+++ b/imageio/imageio-pict/src/test/java/com/twelvemonkeys/imageio/plugins/pict/PICTImageReaderTest.java
@@ -34,6 +34,7 @@ import com.twelvemonkeys.imageio.stream.ByteArrayImageInputStream;
 import com.twelvemonkeys.imageio.stream.ByteArrayImageInputStreamSpi;
 import com.twelvemonkeys.imageio.util.ImageReaderAbstractTest;
 
+import javax.imageio.ImageIO;
 import javax.imageio.spi.IIORegistry;
 import javax.imageio.spi.ImageReaderSpi;
 import javax.imageio.stream.ImageInputStream;
@@ -229,6 +230,23 @@ public class PICTImageReaderTest extends ImageReaderAbstractTest<PICTImageReader
         reader.read(0);
     }
 
+    @Test
+    public void testQTMaskBytesSkipped() throws IOException {
+        PICTImageReader reader = createReader();
+
+        try (ImageInputStream stream = ImageIO.createImageInputStream(getClassLoaderResource("/pict/P30946BDC.pict"))) {
+            reader.setInput(stream);
+
+            BufferedImage image = reader.read(0, null);
+            assertRGBEquals("RGB values differ", 0xfff3f3f3, image.getRGB(0, 0), 1);
+            assertRGBEquals("RGB values differ", 0xffe1e1e1, image.getRGB(80, 80), 1);
+            assertRGBEquals("RGB values differ", 0xffe1e1e1, image.getRGB(290, 266), 1);
+        }
+        finally {
+            reader.dispose();
+        }
+    }
+
     private static final byte[] DATA_EXT_V2 = {
             0x00, 0x78, /* picture size; don't use this value for picture size */
             0x00, 0x00, 0x00, 0x00, 0x00, 0x6C, 0x00, (byte) 0xA8, /* bounding rectangle of picture at 72 dpi */