Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / gengen / gr_unpacked_to_packed_ss.cc

diff --git a/gnuradio-core/src/lib/gengen/gr_unpacked_to_packed_ss.cc b/gnuradio-core/src/lib/gengen/gr_unpacked_to_packed_ss.cc
new file mode 100644 (file)
index 0000000..9527e82
--- /dev/null
+++ b/gnuradio-core/src/lib/gengen/gr_unpacked_to_packed_ss.cc
@@ -0,0 +1,129 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2006 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: this file is machine generated.  Edits will be over written
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gr_unpacked_to_packed_ss.h>
+#include <gr_io_signature.h>
+#include <assert.h>
+
+static const unsigned int BITS_PER_TYPE = sizeof(short) * 8;
+
+
+gr_unpacked_to_packed_ss_sptr 
+gr_make_unpacked_to_packed_ss (unsigned int bits_per_chunk, gr_endianness_t endianness)
+{
+  return gr_unpacked_to_packed_ss_sptr 
+    (new gr_unpacked_to_packed_ss (bits_per_chunk,endianness));
+}
+
+gr_unpacked_to_packed_ss::gr_unpacked_to_packed_ss (unsigned int bits_per_chunk, 
+                                                   gr_endianness_t endianness)
+  : gr_block ("unpacked_to_packed_ss",
+             gr_make_io_signature (1, -1, sizeof (short)),
+             gr_make_io_signature (1, -1, sizeof (short))),
+    d_bits_per_chunk(bits_per_chunk),d_endianness(endianness),d_index(0)
+{
+  assert (bits_per_chunk <= BITS_PER_TYPE);
+  assert (bits_per_chunk > 0);
+
+  set_relative_rate (bits_per_chunk/(1.0 * BITS_PER_TYPE));
+}
+
+void
+gr_unpacked_to_packed_ss::forecast(int noutput_items, gr_vector_int &ninput_items_required)
+{
+  int input_required = (int) ceil( (d_index+noutput_items * 1.0 * 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;
+  }
+}
+
+unsigned int
+get_bit_be1 (const short *in_vector,unsigned int bit_addr, unsigned int bits_per_chunk) {
+  unsigned int byte_addr = (int)bit_addr/bits_per_chunk;
+  short 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;
+}
+
+int
+gr_unpacked_to_packed_ss::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 short *in = (short *) input_items[m];
+    short *out = (short *) output_items[m];
+    index_tmp=d_index;
+
+    // per stream processing
+
+    //assert((ninput_items[m]-d_index)*d_bits_per_chunk >= noutput_items*BITS_PER_TYPE);
+  
+    switch(d_endianness){
+
+    case GR_MSB_FIRST:
+      for(int i=0;i<noutput_items;i++) {
+       short tmp=0;
+       for(unsigned int j=0; j<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<BITS_PER_TYPE; j++) {
+         tmp = (tmp>>1)| (get_bit_be1(in,index_tmp,d_bits_per_chunk)<<(BITS_PER_TYPE-1));
+         index_tmp++;
+       }
+       out[i] = tmp;
+      }
+      break;
+      
+    default:
+      assert(0);
+    }
+  }
+
+  d_index = index_tmp;
+  consume_each ((int)(d_index/d_bits_per_chunk));
+  d_index = d_index%d_bits_per_chunk;
+
+  return noutput_items;
+}