openexr: Add htj2k as a compression option for OpenEXR (#4785)

After adding the new `htj2k` compression codec to OpenEXR, here we
enable it in the OIIO stack so it will be recognized by the library and
binary tools, such as using `oiiotool` to directly change compression
type into htj2k.

---------

Signed-off-by: lji <[email protected]>

Author: lji-ilm

src/doc/builtinplugins.rst

@@ -1497,8 +1497,9 @@ The official OpenEXR site is http://www.openexr.com/.
    * - ``compression``
      - string
      - one of: ``"none"``, ``"rle"``, ``"zip"``, ``"zips"``, ``"piz"``,
-       ``"pxr24"``, ``"b44"``, ``"b44a"``, ``"dwaa"``, or ``"dwab"``.  If
-       the writer receives a request for a compression type it does not
+       ``"pxr24"``, ``"b44"``, ``"b44a"``, ``"dwaa"``, ``"dwab"`` or ``"htj2k"``.
+       (``"htj2k"`` is only supported with OpenEXR 3.4 or later.)
+       If the writer receives a request for a compression type it does not
        recognize or is not supported by the version of OpenEXR on the
        system, it will use ``"zip"`` by default. For ``"dwaa"`` and
        ``"dwab"``, the dwaCompressionLevel may be optionally appended to the

src/openexr.imageio/exrinput.cpp

@@ -436,6 +436,9 @@ OpenEXRInput::PartInfo::parse_header(OpenEXRInput* in,
         case Imf::B44A_COMPRESSION: comp = "b44a"; break;
         case Imf::DWAA_COMPRESSION: comp = "dwaa"; break;
         case Imf::DWAB_COMPRESSION: comp = "dwab"; break;
+#ifdef IMF_HTJ2K_COMPRESSION
+        case Imf::HTJ2K_COMPRESSION: comp = "htj2k"; break;
+#endif
         default: break;
         }
         if (comp)

src/openexr.imageio/exrinput_c.cpp

@@ -571,6 +571,9 @@ OpenEXRCoreInput::PartInfo::parse_header(OpenEXRCoreInput* in,
         case EXR_COMPRESSION_B44A: comp = "b44a"; break;
         case EXR_COMPRESSION_DWAA: comp = "dwaa"; break;
         case EXR_COMPRESSION_DWAB: comp = "dwab"; break;
+#ifdef IMF_HTJ2K_COMPRESSION
+        case EXR_COMPRESSION_HTJ2K: comp = "htj2k"; break;
+#endif
         default: break;
         }
         if (comp)

src/openexr.imageio/exroutput.cpp

@@ -960,6 +960,10 @@ OpenEXROutput::put_parameter(const std::string& name, TypeDesc type,
                 header.compression() = Imf::DWAA_COMPRESSION;
             else if (Strutil::iequals(str, "dwab"))
                 header.compression() = Imf::DWAB_COMPRESSION;
+#ifdef IMF_HTJ2K_COMPRESSION
+            else if (Strutil::iequals(str, "htj2k"))
+                header.compression() = Imf::HTJ2K_COMPRESSION;
+#endif
         }
         return true;
     }