From 1043222e0de551f00683a1cc9060f194adc4fc85 Mon Sep 17 00:00:00 2001
From: Andrej Rode <mail@andrejro.de>
Date: Thu, 22 Feb 2018 13:28:01 +0100
Subject: blocks: replace gengen with C++ templates
---
gr-blocks/lib/unpacked_to_packed_impl.cc | 150 +++++++++++++++++++++++++++++++
1 file changed, 150 insertions(+)
create mode 100644 gr-blocks/lib/unpacked_to_packed_impl.cc
(limited to 'gr-blocks/lib/unpacked_to_packed_impl.cc')
diff --git a/gr-blocks/lib/unpacked_to_packed_impl.cc b/gr-blocks/lib/unpacked_to_packed_impl.cc
new file mode 100644
index 0000000000..92240c516a
--- /dev/null
+++ b/gr-blocks/lib/unpacked_to_packed_impl.cc
@@ -0,0 +1,150 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2006,2013,2018 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.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "unpacked_to_packed_impl.h"
+#include <gnuradio/io_signature.h>
+#include <assert.h>
+
+namespace gr {
+ namespace blocks {
+
+
+ template <class T>
+ typename unpacked_to_packed<T>::sptr
+ unpacked_to_packed<T>::make(unsigned int bits_per_chunk,
+ endianness_t endianness)
+ {
+ return gnuradio::get_initial_sptr
+ (new unpacked_to_packed_impl<T> (bits_per_chunk, endianness));
+ }
+
+ template <class T>
+ unpacked_to_packed_impl<T> ::unpacked_to_packed_impl(unsigned int bits_per_chunk,
+ endianness_t endianness)
+ : block("unpacked_to_packed",
+ io_signature::make(1, -1, sizeof(T)),
+ io_signature::make(1, -1, sizeof(T))),
+ d_bits_per_chunk(bits_per_chunk), d_endianness(endianness), d_index(0)
+ {
+ assert(bits_per_chunk <= d_bits_per_type);
+ assert(bits_per_chunk > 0);
+
+ this->set_relative_rate(bits_per_chunk/(1.0 * d_bits_per_type));
+ }
+
+ template <class T>
+ unpacked_to_packed_impl<T> ::~unpacked_to_packed_impl()
+ {
+ }
+
+ template <class T>
+ void
+ unpacked_to_packed_impl<T> ::forecast(int noutput_items,
+ gr_vector_int &ninput_items_required)
+ {
+ int input_required = (int)ceil((d_index+noutput_items * 1.0 * d_bits_per_type)
+ / d_bits_per_chunk);
+ unsigned ninputs = ninput_items_required.size();
+ for(unsigned int i = 0; i < ninputs; i++) {
+ ninput_items_required[i] = input_required;
+ }
+ }
+
+ template <class T>
+ unsigned int
+ unpacked_to_packed_impl<T>::get_bit_be1(const T *in_vector, unsigned int bit_addr,
+ unsigned int bits_per_chunk)
+ {
+ unsigned int byte_addr = (int)bit_addr/bits_per_chunk;
+ T x = in_vector[byte_addr];
+ unsigned int residue = bit_addr - byte_addr * bits_per_chunk;
+ //printf("Bit addr %d byte addr %d residue %d val %d\n",bit_addr,byte_addr,residue,(x>>(bits_per_chunk-1-residue))&1);
+ return (x >> (bits_per_chunk-1-residue)) & 1;
+ }
+
+ template <class T>
+ int
+ unpacked_to_packed_impl<T> ::general_work(int noutput_items,
+ gr_vector_int &ninput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ unsigned int index_tmp = d_index;
+
+ assert(input_items.size() == output_items.size());
+ int nstreams = input_items.size();
+
+ for(int m=0; m< nstreams; m++) {
+ const T *in = (T *)input_items[m];
+ T *out = (T *)output_items[m];
+ index_tmp=d_index;
+
+ // per stream processing
+
+ //assert((ninput_items[m]-d_index)*d_bits_per_chunk >= noutput_items*d_bits_per_type);
+
+ switch(d_endianness) {
+
+ case GR_MSB_FIRST:
+ for(int i = 0; i < noutput_items; i++) {
+ T tmp=0;
+ for(unsigned int j = 0; j < d_bits_per_type; j++) {
+ tmp = (tmp<<1) | get_bit_be1(in, index_tmp, d_bits_per_chunk);
+ index_tmp++;
+ }
+ out[i] = tmp;
+ }
+ break;
+
+ case GR_LSB_FIRST:
+ for(int i = 0; i < noutput_items; i++) {
+ unsigned long tmp=0;
+ for(unsigned int j = 0; j < d_bits_per_type; j++) {
+ tmp = (tmp>>1) | (get_bit_be1(in, index_tmp, d_bits_per_chunk) << (d_bits_per_type-1));
+ index_tmp++;
+ }
+ out[i] = tmp;
+ }
+ break;
+
+ default:
+ assert(0);
+ }
+ }
+
+ d_index = index_tmp;
+ this->consume_each((int)(d_index/d_bits_per_chunk));
+ d_index = d_index%d_bits_per_chunk;
+
+ return noutput_items;
+ }
+
+template class unpacked_to_packed<std::uint8_t>;
+template class unpacked_to_packed<std::int16_t>;
+template class unpacked_to_packed<std::int32_t>;
+ } /* namespace blocks */
+} /* namespace gr */
--
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