1 files changed, 82 insertions, 0 deletions
diff --git a/src/main/print-dither.h b/src/main/print-dither.h
new file mode 100644
index 0000000..cafb2be
--- /dev/null
+++ b/src/main/print-dither.h
@@ -0,0 +1,82 @@
+/*
+ * "$Id: print-dither.h,v 1.1.4.1 2002/05/03 01:30:28 rlk Exp $"
+ *
+ *   Print plug-in header file for the GIMP.
+ *
+ *   Copyright 1997-2000 Michael Sweet (mike@easysw.com) and
+ *	Robert Krawitz (rlk@alum.mit.edu)
+ *
+ *   This program is free software; you can redistribute it and/or modify it
+ *   under the terms of the GNU General Public License as published by the Free
+ *   Software Foundation; either version 2 of the License, or (at your option)
+ *   any later version.
+ *
+ *   This program 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 General Public License
+ *   for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Revision History:
+ *
+ *   See ChangeLog
+ */
+
+/*
+ * This file must include only standard C header files.  The core code must
+ * compile on generic platforms that don't support glib, gimp, gtk, etc.
+ */
+
+#ifndef _GIMP_PRINT_DITHER_H_
+#define _GIMP_PRINT_DITHER_H_
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gimp-print/gimp-print.h>
+#include "gimp-print-internal.h"
+
+extern const stp_dither_matrix_short_t stp_1_1_matrix;
+extern const stp_dither_matrix_short_t stp_2_1_matrix;
+extern const stp_dither_matrix_short_t stp_4_1_matrix;
+
+typedef struct dither_matrix
+{
+  int base;
+  int exp;
+  int x_size;
+  int y_size;
+  int total_size;
+  int last_x;
+  int last_x_mod;
+  int last_y;
+  int last_y_mod;
+  int index;
+  int i_own;
+  int x_offset;
+  int y_offset;
+  unsigned fast_mask;
+  unsigned *matrix;
+} dither_matrix_t;
+
+extern void stp_init_iterated_matrix(dither_matrix_t *mat, size_t size,
+				     size_t exp, const unsigned *array);
+extern void stp_shear_matrix(dither_matrix_t *mat, int x_shear, int y_shear);
+extern void stp_init_matrix(dither_matrix_t *mat, int x_size, int y_size,
+			    const unsigned int *array, int transpose,
+			    int prescaled);
+extern void stp_init_matrix_short(dither_matrix_t *mat, int x_size, int y_size,
+				  const unsigned short *array, int transpose,
+				  int prescaled);
+extern void stp_destroy_matrix(dither_matrix_t *mat);
+extern void stp_clone_matrix(const dither_matrix_t *src, dither_matrix_t *dest,
+			     int x_offset, int y_offset);
+extern void stp_copy_matrix(const dither_matrix_t *src, dither_matrix_t *dest);
+extern void stp_exponential_scale_matrix(dither_matrix_t *mat,double exponent);
+extern void stp_matrix_set_row(dither_matrix_t *mat, int y);
+
+#endif /* _GIMP_PRINT_DITHER_H_ */