thodg/patchwork13/pw13/data.h

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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.h

• /*
  
    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.h  -  data, data types and operators
  
  */
  #ifndef PW13_DATA_H_INCLUDED
  #define PW13_DATA_H_INCLUDED
  
  #include <stdarg.h>
  #include "dll.h"
  #include "types.h"
  #include "list.h"
  
  
  /**  Representation of the data to flow through patches  **/
  
  union Pw13_Data {
    unsigned int nblocks;
    union {
      char c[4];
      unsigned char uc[4];
      short s[2];
      unsigned short us[2];
    } t;
    char c;
    unsigned char uc;
    short s;
    unsigned short us;
    int i;
    unsigned int ui;
    long l;
    unsigned long ul;
    float f;
    int b;
    char *pc;
    void *ptr;
  };
  
  
  extern Pw13_Data pw13_data_zero_s;
  
  
  /* constructors */
  
  /** Allocate a single data block containing zero.
      That means that the data segment contains no data. */
  PW13_EXTERN Pw13_Data * pw13_data_zero ();
  
  /** Allocate two blocks.
      The first contains 1 in nblocks because there is a
      single data block in the data segment.
      The second block contains user data.*/
  PW13_EXTERN Pw13_Data * pw13_data_one ();
  
  PW13_EXTERN Pw13_Data * pw13_data_one_init (Pw13_Data val);
  
  /** Allocate an array of blocks.
      The first block contains the blocks count, and is followed by
      the counted blocks.
   */
  PW13_EXTERN Pw13_Data * pw13_data_array (unsigned int nblocks);
  
  /** Allocate an array of blocks with a given byte size.
      The first block contains the blocks count, and is followed by
      enough blocks to contain the given number of bytes.
   */
  PW13_EXTERN Pw13_Data * pw13_data_bytes (unsigned int nbytes);
  
  /** Allocate and initialize an array of blocks.
      The first block contains the blocks count, and is followed by
      the counted blocks.
   */
  PW13_EXTERN Pw13_Data * pw13_data_array_init (unsigned int nblocks, ...);
  
  /** Copy a data segment */
  PW13_EXTERN Pw13_Data * pw13_data_copy (Pw13_Data *d);
  
  
  /* operators */
  
  /** Returns the size in bytes of a data segment */
  PW13_EXTERN unsigned int pw13_data_size (Pw13_Data *d);
  
  /** Free a data segment */
  PW13_EXTERN void pw13_data_free (Pw13_Data *d);
  
  /* Data constructors for convenience */
  PW13_EXTERN Pw13_Data *pw13_data_c   (char val);
  PW13_EXTERN Pw13_Data *pw13_data_uc  (unsigned char val);
  PW13_EXTERN Pw13_Data *pw13_data_s   (short val);
  PW13_EXTERN Pw13_Data *pw13_data_us  (unsigned short val);
  PW13_EXTERN Pw13_Data *pw13_data_i   (int val);
  PW13_EXTERN Pw13_Data *pw13_data_ui  (unsigned int val);
  PW13_EXTERN Pw13_Data *pw13_data_l   (long val);
  PW13_EXTERN Pw13_Data *pw13_data_ul  (unsigned long val);
  PW13_EXTERN Pw13_Data *pw13_data_f   (float val);
  PW13_EXTERN Pw13_Data *pw13_data_b   (int val);
  PW13_EXTERN Pw13_Data *pw13_data_pc  (char *val);
  PW13_EXTERN Pw13_Data *pw13_data_ptr (void *val);
  
  
  #endif
  /* ndef PW13_DATA_H_INCLUDED */
  

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