DDS cleanup (#1262)

* Refactorings and code clean-up
* Major rework/standardization:
 * DDSEncoderType, DX10DXGIFormat merged with DDSType for a single way to describe a DDS format
 * Added constants for DXGI formats
 * DDSImageWriteParam is now mutable and supports standard way of setting compression type
 * DDSImageMetadata now supports more of the format
 Performance:
 * DDSReader now use seek() to jump to correct mipmap instead of reading all bytes
 * DDSImageWriter now uses getTile(0, 0) instead of getData() for better performance
* Fix JavaDoc 🎉
* Sonar issues + roll back accidental check-in
* More clean-up: Removed optional flags from param, header size validation, metadata now reports compresion as lossy
* More clean-up: Now keeps stream byte order consistent (LE), support for Raster, more tests
* Mipmap support using ImageIO sequence API
* Added raster write test
+ fixed a small issue for PAM
* Sonar issues

imageio/imageio-pnm/src/main/java/com/twelvemonkeys/imageio/plugins/pnm/TupleType.java

@@ -111,6 +111,7 @@ enum TupleType {
 
     static TupleType forPAM(Raster raster) {
         SampleModel sampleModel = raster.getSampleModel();
+
         switch (sampleModel.getTransferType()) {
             case DataBuffer.TYPE_BYTE:
             case DataBuffer.TYPE_USHORT:
@@ -145,8 +146,12 @@ enum TupleType {
                     return TupleType.RGB;
                 }
                 else if (bands == 4) {
+                    // Ambiguous, could also be CMYK...
                     return TupleType.RGB_ALPHA;
                 }
+                else if (bands == 5) {
+                    return TupleType.CMYK_ALPHA;
+                }
                 // ...else fall through...
         }
 
@@ -154,7 +159,7 @@ enum TupleType {
     }
     
     static TupleType forPAM(ImageTypeSpecifier type) {
-        // Support only 1 bit b/w, 8-16 bit gray and 8-16 bit/sample RGB
+        // Support only 1 bit b/w, 8-16 bit gray, 8-16 bit/sample RGB and 8-16 bit/sample CMYK
         switch (type.getBufferedImageType()) {
             // 1 bit b/w  or b/w + a
             case BufferedImage.TYPE_BYTE_BINARY: