diff options
Diffstat (limited to 'gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t')
-rw-r--r-- | gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t b/gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t new file mode 100644 index 000000000..4f34d8347 --- /dev/null +++ b/gr-blocks/lib/packed_to_unpacked_XX_impl.cc.t @@ -0,0 +1,147 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2013 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 <blocks/log2_const.h> +#include <assert.h> + +namespace gr { + namespace blocks { + + static const unsigned int BITS_PER_TYPE = sizeof(@I_TYPE@) * 8; + static const unsigned int LOG2_L_TYPE = log2_const<sizeof(@I_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((1.0 * BITS_PER_TYPE) / bits_per_chunk); + } + + @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 * d_bits_per_chunk) + / (1.0 * BITS_PER_TYPE)); + unsigned ninputs = ninput_items_required.size(); + for(unsigned int i = 0; i < ninputs; i++) { + ninput_items_required[i] = input_required; + //printf("Forecast wants %d needs %d\n",noutput_items,ninput_items_required[i]); + } + } + + unsigned int + get_bit_le(const @I_TYPE@ *in_vector, unsigned int bit_addr) + { + @I_TYPE@ x = in_vector[bit_addr >> LOG2_L_TYPE]; + return (x >> (bit_addr & (BITS_PER_TYPE-1))) & 1; + } + + unsigned int + get_bit_be(const @I_TYPE@ *in_vector, unsigned int bit_addr) + { + @I_TYPE@ x = in_vector[bit_addr >> LOG2_L_TYPE]; + return (x >> ((BITS_PER_TYPE-1) - (bit_addr & (BITS_PER_TYPE-1)))) & 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 + + switch(d_endianness) { + case GR_MSB_FIRST: + for(int i = 0; i < noutput_items; i++) { + //printf("here msb %d\n",i); + @O_TYPE@ x = 0; + for(unsigned int j = 0; j < d_bits_per_chunk; j++, index_tmp++) + x = (x<<1) | get_bit_be(in, index_tmp); + out[i] = x; + } + break; + + case GR_LSB_FIRST: + for(int i = 0; i < noutput_items; i++) { + //printf("here lsb %d\n",i); + @O_TYPE@ x = 0; + for(unsigned int j = 0; j < d_bits_per_chunk; j++, index_tmp++) + x = (x<<1) | get_bit_le(in, index_tmp); + out[i] = x; + } + break; + + default: + assert(0); + } + + //printf("almost got to end\n"); + assert(ninput_items[m] >= (int)((d_index+(BITS_PER_TYPE-1)) >> LOG2_L_TYPE)); + } + + d_index = index_tmp; + consume_each(d_index >> LOG2_L_TYPE); + d_index = d_index & (BITS_PER_TYPE-1); + //printf("got to end\n"); + return noutput_items; + } + + } /* namespace blocks */ +} /* namespace gr */ |