[gimp] psd: add stubs for Darker Color and Lighter Color layer modes

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit 0584fc0e45433616ee366dc2de032e0e147c9482
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Sat Feb 4 17:28:13 2017 +0300

    psd: add stubs for Darker Color and Lighter Color layer modes

 plug-ins/file-psd/psd-util.c |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)
---
diff --git a/plug-ins/file-psd/psd-util.c b/plug-ins/file-psd/psd-util.c
index fb8c699..3a35f79 100644
--- a/plug-ins/file-psd/psd-util.c
+++ b/plug-ins/file-psd/psd-util.c
@@ -738,6 +738,30 @@ psd_to_gimp_blend_mode (const gchar            *psd_mode,
       return GIMP_LAYER_MODE_NORMAL;
     }
 
+  if (g_ascii_strncasecmp (psd_mode, "dkCl", 4) == 0)           /* Darker Color */
+    {
+      if (CONVERSION_WARNINGS)
+        {
+          static gchar  *mode_name = "DARKER COLOR";
+          g_message ("Unsupported blend mode: %s. Mode reverts to normal",
+                     mode_name);
+        }
+      if (layer_composite) *layer_composite = GIMP_LAYER_COMPOSITE_AUTO;
+      return GIMP_LAYER_MODE_NORMAL;
+    }
+
+  if (g_ascii_strncasecmp (psd_mode, "lgCl", 4) == 0)           /* Lighter Color */
+    {
+      if (CONVERSION_WARNINGS)
+        {
+          static gchar  *mode_name = "LIGHTER COLOR";
+          g_message ("Unsupported blend mode: %s. Mode reverts to normal",
+                     mode_name);
+        }
+      if (layer_composite) *layer_composite = GIMP_LAYER_COMPOSITE_AUTO;
+      return GIMP_LAYER_MODE_NORMAL;
+    }
+
   if (CONVERSION_WARNINGS)
     {
       gchar  *mode_name = g_strndup (psd_mode, 4);