thodg/patchwork13/pw13/data.c

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• Hash : 94046104
  Author : Thomas de Grivel
  Date : 2020-02-24T15:19:27
  

  import from branch patchwork13-0.1 on SourceForge.net

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• pw13/data.c

• /*
  
    This is part of Patchwork13! the real-time data synthesis toolkit.
    http://patchwork13.sourceforge.net/
  
    pw13 - the patchwork13 core library
    Copyright (C) 2005 Thomas de Grivel <billitch@yahoo.fr>
    
    This program 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 2
    of the License, or (at your option) any later version.
    
    This program 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 this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  
  *
  
    data.c  -  data constructors
  
  */
  #include <stdlib.h>
  #include <string.h>
  #include <stdarg.h>
  #include "data.h"
  #include "types.h"
  
  Pw13_Data pw13_data_zero_s = {0};
  
  
  Pw13_Data * pw13_data_zero ()
  {
    return &pw13_data_zero_s;
  }
  
  
  Pw13_Data * pw13_data_one ()
  {
    Pw13_Data *s = malloc (2 * sizeof (Pw13_Data));
    s->nblocks = 1;
    return s;
  }
  
  
  Pw13_Data * pw13_data_array (unsigned int nblocks)
  {
    Pw13_Data *s = malloc ((nblocks + 1) * sizeof (Pw13_Data));
    s->nblocks = nblocks;
    return s;
  }
  
  
  Pw13_Data * pw13_data_bytes (unsigned int nbytes)
  {
    unsigned int nblocks = (nbytes + sizeof (Pw13_Data) - 1) / sizeof (Pw13_Data);
    return pw13_data_array (nblocks);
  }
  
  
  Pw13_Data * pw13_data_array_init (unsigned int nblocks, ...)
  {
    va_list ap;
    va_start (ap, nblocks);
    Pw13_Data *a = pw13_data_array (nblocks);
    unsigned int i;
    for (i = 1; i <= nblocks; i++)
      a[i] = va_arg (ap, Pw13_Data);
    va_end (ap);
    return a;
  }
  
  
  Pw13_Data * pw13_data_copy (Pw13_Data *d)
  {
    int size = (d->nblocks + 1) * sizeof (Pw13_Data);
    Pw13_Data *s = malloc (size);
    memcpy (s, d, size);
    return s;
  }
  
  
  unsigned int pw13_data_size (Pw13_Data *d)
  {
    return (d->nblocks + 1) * sizeof (Pw13_Data);
  }
  
  
  void pw13_data_free (Pw13_Data *d)
  {
    free (d);
  }
  
  
  /* data constructors for convenience */
  #define PW13_DATA_CONSTRUCTOR(name, type, field) \
    Pw13_Data * name (type val)			 \
    {						 \
      Pw13_Data *d = pw13_data_one ();		 \
      d[1].field = val;				 \
      return d;					 \
    }
  
  PW13_DATA_CONSTRUCTOR (pw13_data_c,  char, c)
  PW13_DATA_CONSTRUCTOR (pw13_data_uc, unsigned char, uc)
  PW13_DATA_CONSTRUCTOR (pw13_data_s,  short, s)
  PW13_DATA_CONSTRUCTOR (pw13_data_us, unsigned short, us)
  PW13_DATA_CONSTRUCTOR (pw13_data_i,  int, i)
  PW13_DATA_CONSTRUCTOR (pw13_data_ui, unsigned int, ui)
  PW13_DATA_CONSTRUCTOR (pw13_data_l,  long, l)
  PW13_DATA_CONSTRUCTOR (pw13_data_ul, unsigned long, ul)
  PW13_DATA_CONSTRUCTOR (pw13_data_f,  float, f)
  PW13_DATA_CONSTRUCTOR (pw13_data_b,  int, b)
  PW13_DATA_CONSTRUCTOR (pw13_data_pc, char*, pc)
  PW13_DATA_CONSTRUCTOR (pw13_data_ptr,void*, ptr)
  
  #undef PW13_DATA_CONSTRUCTOR
  

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