From cf268b4cfd47a49f36926a2779258c660fb85340 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Fri, 17 Jul 2015 08:13:01 +0000
Subject: [PATCH] From Patrick Neary, "To the tiff plugin, add the capability
 to write tiff images with unsigned short data"

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/branches/OpenSceneGraph-3.2@14971 16af8721-9629-0410-8352-f15c8da7e697
---
 src/osgPlugins/tiff/ReaderWriterTIFF.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/osgPlugins/tiff/ReaderWriterTIFF.cpp b/src/osgPlugins/tiff/ReaderWriterTIFF.cpp
index 946fbabfa..115be26c9 100644
--- a/src/osgPlugins/tiff/ReaderWriterTIFF.cpp
+++ b/src/osgPlugins/tiff/ReaderWriterTIFF.cpp
@@ -852,6 +852,9 @@ class ReaderWriterTIFF : public osgDB::ReaderWriter
                         else if (compressTypeOpt == "jpeg") {
                             compressionType = COMPRESSION_JPEG;
                         }
+                        else if (compressTypeOpt == "none") {
+                            compressionType = COMPRESSION_NONE;
+                        }
                     }
                 }
             }
@@ -883,10 +886,12 @@ class ReaderWriterTIFF : public osgDB::ReaderWriter
                 case GL_DEPTH_COMPONENT:
                 case GL_LUMINANCE:
                 case GL_ALPHA:
+                case GL_RED:
                     photometric = PHOTOMETRIC_MINISBLACK;
                     samplesPerPixel = 1;
                     break;
                 case GL_LUMINANCE_ALPHA:
+                case GL_RG:
                     photometric = PHOTOMETRIC_MINISBLACK;
                     samplesPerPixel = 2;
                     break;
@@ -913,6 +918,10 @@ class ReaderWriterTIFF : public osgDB::ReaderWriter
                     TIFFSetField(image, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_INT);
                     bitsPerSample = 16;
                     break;
+                case GL_UNSIGNED_SHORT:
+                    TIFFSetField(image, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_UINT);
+                    bitsPerSample = 16;
+                    break;
                 default:
                     bitsPerSample = 8;
                     break;