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-rw-r--r--lib/pam.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/pam.h b/lib/pam.h
index 88b8c2bd..94c85b4e 100644
--- a/lib/pam.h
+++ b/lib/pam.h
@@ -305,6 +305,9 @@ pnm_getopacity(const struct pam * const pamP,
 void
 pnm_createBlackTuple(const struct pam * const pamP, tuple * const blackTupleP);
 
+void
+pnm_createWhiteTuple(const struct pam * const pamP, tuple * const whiteTupleP);
+
 tuple
 pnm_allocpamtuple(const struct pam * const pamP);
 
@@ -590,6 +593,10 @@ tuple
 pnm_backgroundtuple(struct pam *  const pamP,
                     tuple      ** const tuples);
 
+tuple
+pnm_backgroundtuplerow(const struct pam * const pamP,
+                       tuple      *       const tuplerow);
+
 /*----------------------------------------------------------------------------
    These are meant for passing to pm_system() as Standard Input feeder
    and Standard Output accepter.