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author | Martin Braun | 2013-02-26 13:44:12 +0100 |
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committer | Martin Braun | 2013-02-26 13:44:12 +0100 |
commit | 7bb8c89e224e7b2c9ddbc5b4f50c79ffb0da2557 (patch) | |
tree | aec6e881cdd825c39a084ce7aa16a87c045a4fae /gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t | |
parent | d7766c2c8d12bbfaf29b83cfea5ff95475b45d86 (diff) | |
parent | a54dc5bab6cc38513e9732be9f5c2670145b160f (diff) | |
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Merge branch 'master' of git://github.com/gnuradio/gnuradio into grmodtool
Diffstat (limited to 'gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t')
-rw-r--r-- | gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t b/gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t new file mode 100644 index 000000000..3a7428fd8 --- /dev/null +++ b/gr-blocks/lib/unpacked_to_packed_XX_impl.cc.t @@ -0,0 +1,143 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2006,2013 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_IMPL@.h" +#include <gr_io_signature.h> +#include <assert.h> + +namespace gr { + namespace blocks { + + static const unsigned int BITS_PER_TYPE = sizeof(@O_TYPE@) * 8; + + @NAME@::sptr + @NAME@::make(unsigned int bits_per_chunk, + gr_endianness_t endianness) + { + return gnuradio::get_initial_sptr + (new @NAME_IMPL@(bits_per_chunk, endianness)); + } + + @NAME_IMPL@::@NAME_IMPL@(unsigned int bits_per_chunk, + gr_endianness_t endianness) + : gr_block("@NAME@", + gr_make_io_signature(1, -1, sizeof(@I_TYPE@)), + gr_make_io_signature(1, -1, sizeof(@O_TYPE@))), + 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)); + } + + @NAME_IMPL@::~@NAME_IMPL@() + { + } + + void + @NAME_IMPL@::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 @I_TYPE@ *in_vector, unsigned int bit_addr, + unsigned int bits_per_chunk) + { + unsigned int byte_addr = (int)bit_addr/bits_per_chunk; + @I_TYPE@ 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 + @NAME_IMPL@::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 @I_TYPE@ *in = (@I_TYPE@ *)input_items[m]; + @O_TYPE@ *out = (@O_TYPE@ *)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++) { + @O_TYPE@ 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; + } + + } /* namespace blocks */ +} /* namespace gr */ |