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74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
11 years ago
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/*
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* Copyright (c) 2013, Ismael Gomez-Miguelez <ismael.gomez@tsc.upc.edu>.
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* This file is part of ALOE++ (http://flexnets.upc.edu/)
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*
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* ALOE++ is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* ALOE++ is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with ALOE++. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Functions that generate the test data fed into the DSP modules being developed */
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#include <complex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <skeleton.h>
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#include <params.h>
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#define INCLUDE_DEFS_ONLY
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#include "template.h"
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int offset=0;
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/**
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* Generates input signal. VERY IMPORTANT to fill length vector with the number of
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* samples that have been generated.
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* @param inp Input interface buffers. Data from other interfaces is stacked in the buffer.
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* Use in(ptr,idx) to access the address.
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*
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* @param lengths Save on n-th position the number of samples generated for the n-th interface
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*/
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int generate_input_signal(void *in, int *lengths)
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{
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int i;
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input_t *input = in;
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int block_length;
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pmid_t blen_id;
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blen_id = param_id("block_length");
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if (!blen_id) {
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moderror("Parameter block_length not found\n");
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return -1;
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}
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if (!param_get_int(blen_id,&block_length)) {
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moderror("Getting integer parameter block_length\n");
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return -1;
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}
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modinfo_msg("Parameter block_length is %d\n",block_length);
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/** HERE INDICATE THE LENGTH OF THE SIGNAL */
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lengths[0] = block_length;
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for (i=0;i<block_length;i++) {
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#ifdef GENERATE_COMPLEX
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__real__ input[i] = (float) ((i+offset)%(block_length));
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__imag__ input[i] = (float) ((block_length-i-1+offset)%(block_length));
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#else
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input[i] = (i+offset)%(block_length);
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#endif
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}
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offset++;
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return 0;
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}
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