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diff --git a/libart_lgpl/art_rgb_pixbuf_affine.h b/libart_lgpl/art_rgb_pixbuf_affine.h
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+++ b/libart_lgpl/art_rgb_pixbuf_affine.h
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+/* Libart_LGPL - library of basic graphic primitives
+ * Copyright (C) 1998 Raph Levien
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __ART_RGB_PIXBUF_AFFINE_H__
+#define __ART_RGB_PIXBUF_AFFINE_H__
+
+/* This module handles compositing of affine-transformed generic
+   pixbuf images over rgb pixel buffers. */
+
+#include <libart_lgpl/art_filterlevel.h>
+#include <libart_lgpl/art_alphagamma.h>
+#include <libart_lgpl/art_pixbuf.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void
+art_rgb_pixbuf_affine (art_u8 *dst,
+		       int x0, int y0, int x1, int y1, int dst_rowstride,
+		       const ArtPixBuf *pixbuf,
+		       const double affine[6],
+		       ArtFilterLevel level,
+		       ArtAlphaGamma *alphagamma);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif