From 96a174f10af9b9b16cbb921622672ab6fedc822d Mon Sep 17 00:00:00 2001
From: Achilleas Anastasopoulos <anastas@umich.edu>
Date: Mon, 21 Feb 2011 18:58:58 -0500
Subject: added pccc decoder + examples
---
gr-trellis/src/lib/trellis_pccc_decoder_X.cc.t | 124 +++++++++++++++++++++++++
1 file changed, 124 insertions(+)
create mode 100644 gr-trellis/src/lib/trellis_pccc_decoder_X.cc.t
(limited to 'gr-trellis/src/lib/trellis_pccc_decoder_X.cc.t')
diff --git a/gr-trellis/src/lib/trellis_pccc_decoder_X.cc.t b/gr-trellis/src/lib/trellis_pccc_decoder_X.cc.t
new file mode 100644
index 0000000000..34dd2eb878
--- /dev/null
+++ b/gr-trellis/src/lib/trellis_pccc_decoder_X.cc.t
@@ -0,0 +1,124 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2010 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+// @WARNING@
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <@NAME@.h>
+#include <gr_io_signature.h>
+#include <assert.h>
+#include <iostream>
+#include "core_algorithms.h"
+
+
+static const float INF = 1.0e9;
+
+@SPTR_NAME@
+trellis_make_@BASE_NAME@ (
+ const fsm &FSM1, int ST10, int ST1K,
+ const fsm &FSM2, int ST20, int ST2K,
+ const interleaver &INTERLEAVER,
+ int blocklength,
+ int repetitions,
+ trellis_siso_type_t SISO_TYPE
+)
+{
+ return gnuradio::get_initial_sptr (new @NAME@ (
+ FSM1, ST10, ST1K,
+ FSM2, ST20, ST2K,
+ INTERLEAVER,
+ blocklength,
+ repetitions,
+ SISO_TYPE
+ ));
+}
+
+@NAME@::@NAME@ (
+ const fsm &FSM1, int ST10, int ST1K,
+ const fsm &FSM2, int ST20, int ST2K,
+ const interleaver &INTERLEAVER,
+ int blocklength,
+ int repetitions,
+ trellis_siso_type_t SISO_TYPE
+)
+ : gr_block ("@BASE_NAME@",
+ gr_make_io_signature (1, 1, sizeof (float)),
+ gr_make_io_signature (1, 1, sizeof (@O_TYPE@))),
+ d_FSM1 (FSM1), d_ST10 (ST10), d_ST1K (ST1K),
+ d_FSM2 (FSM2), d_ST20 (ST20), d_ST2K (ST2K),
+ d_INTERLEAVER (INTERLEAVER),
+ d_blocklength (blocklength),
+ d_repetitions (repetitions),
+ d_SISO_TYPE (SISO_TYPE)
+{
+ assert(d_FSM1.I() == d_FSM2.I());
+ set_relative_rate (1.0 / ((double) d_FSM1.O() * d_FSM2.O()));
+ set_output_multiple (d_blocklength);
+}
+
+
+void
+@NAME@::forecast (int noutput_items, gr_vector_int &ninput_items_required)
+{
+ assert (noutput_items % d_blocklength == 0);
+ int input_required = d_FSM1.O() * d_FSM2.O() * noutput_items ;
+ ninput_items_required[0] = input_required;
+}
+
+
+
+//===========================================================
+
+int
+@NAME@::general_work (int noutput_items,
+ gr_vector_int &ninput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+{
+ assert (noutput_items % d_blocklength == 0);
+ int nblocks = noutput_items / d_blocklength;
+
+ float (*p2min)(float, float) = NULL;
+ if(d_SISO_TYPE == TRELLIS_MIN_SUM)
+ p2min = &min;
+ else if(d_SISO_TYPE == TRELLIS_SUM_PRODUCT)
+ p2min = &min_star;
+
+
+ const float *in = (const float *) input_items[0];
+ @O_TYPE@ *out = (@O_TYPE@ *) output_items[0];
+ for (int n=0;n<nblocks;n++) {
+ pccc_decoder(
+ d_FSM1, d_ST10, d_ST1K,
+ d_FSM2, d_ST20, d_ST2K,
+ d_INTERLEAVER, d_blocklength, d_repetitions,
+ p2min,
+ &(in[n*d_blocklength*d_FSM1.O()*d_FSM2.O()]),&(out[n*d_blocklength])
+ );
+ }
+
+ consume_each (d_FSM1.O() * d_FSM2.O() * noutput_items );
+ return noutput_items;
+}
--
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