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+/*
+ * Copyright (c) 2003 Matteo Frigo
+ * Copyright (c) 2003 Massachusetts Institute of Technology
+ *
+ * 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
+ *
+ */
+
+/* $Id: dft.h,v 1.1 2008/10/17 06:11:08 scuri Exp $ */
+
+#ifndef __DFT_H__
+#define __DFT_H__
+
+#include "ifftw.h"
+#include "codelet-dft.h"
+
+/* problem.c: */
+typedef struct {
+ problem super;
+ tensor *sz, *vecsz;
+ R *ri, *ii, *ro, *io;
+} problem_dft;
+
+int X(problem_dft_p)(const problem *p);
+#define DFTP X(problem_dft_p) /* shorthand */
+
+void X(dft_zerotens)(tensor *sz, R *ri, R *ii);
+problem *X(mkproblem_dft)(const tensor *sz, const tensor *vecsz,
+ R *ri, R *ii, R *ro, R *io);
+problem *X(mkproblem_dft_d)(tensor *sz, tensor *vecsz,
+ R *ri, R *ii, R *ro, R *io);
+
+/* solve.c: */
+void X(dft_solve)(const plan *ego_, const problem *p_);
+
+/* plan.c: */
+typedef void (*dftapply) (const plan *ego, R *ri, R *ii, R *ro, R *io);
+
+typedef struct {
+ plan super;
+ dftapply apply;
+} plan_dft;
+
+plan *X(mkplan_dft)(size_t size, const plan_adt *adt, dftapply apply);
+
+#define MKPLAN_DFT(type, adt, apply) \
+ (type *)X(mkplan_dft)(sizeof(type), adt, apply)
+
+/* various solvers */
+solver *X(mksolver_dft_direct)(kdft k, const kdft_desc *desc);
+solver *X(mksolver_dft_ct_dit)(kdft_dit codelet, const ct_desc *desc);
+solver *X(mksolver_dft_ct_ditbuf)(kdft_dit codelet, const ct_desc *desc);
+solver *X(mksolver_dft_ct_dif)(kdft_dif codelet, const ct_desc *desc);
+solver *X(mksolver_dft_ct_ditf)(kdft_difsq codelet, const ct_desc *desc);
+
+extern void (*X(kdft_dit_register_hook))(planner *, kdft_dit, const ct_desc *);
+extern void (*X(kdft_dif_register_hook))(planner *, kdft_dif, const ct_desc *);
+
+void X(dft_rank0_register)(planner *p);
+void X(dft_rank_geq2_register)(planner *p);
+void X(dft_indirect_register)(planner *p);
+void X(dft_vrank_geq1_register)(planner *p);
+void X(dft_vrank2_transpose_register)(planner *p);
+void X(dft_vrank3_transpose_register)(planner *p);
+void X(dft_buffered_register)(planner *p);
+void X(dft_generic_register)(planner *p);
+void X(dft_rader_register)(planner *p);
+void X(dft_nop_register)(planner *p);
+
+/* rader-omega.c: auxiliary stuff for rader */
+R *X(dft_rader_mkomega)(plan *p_, int n, int ginv);
+void X(dft_rader_free_omega)(R **omega);
+
+/* configurations */
+void X(dft_conf_standard)(planner *p);
+
+#endif /* __DFT_H__ */