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/* -*- Mode: C -*- */
/*=============================================================================*\
* File: array2rawbytes.c
* Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
* Description: convert byte-valued atom lists to wchar_t-valued atom lists
*
* Copyright (c) 2009 Bryan Jurish.
*
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file "COPYING", in this distribution.
*
* 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.
*=============================================================================*/
#include <string.h>
#include <wchar.h>
#include <stdlib.h>
#include <m_pd.h>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "mooPdUtils.h"
#include "pdstringUtils.h"
/* black magic for Microsoft's compiler */
#ifdef _MSC_VER
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
/*--------------------------------------------------------------------
* DEBUG
*--------------------------------------------------------------------*/
/*=====================================================================
* Constants
*=====================================================================*/
static char *array2rawbytes_banner = "array2rawbytes: pdstring version " PACKAGE_VERSION " by Bryan Jurish";
#define ARRAY2RAWBYTES_DEFAULT_BUFLEN PDSTRING_DEFAULT_BUFLEN
/*=====================================================================
* Structures and Types: any2string
*=====================================================================*/
static t_class *array2rawbytes_class;
typedef struct _array2rawbytes
{
t_object x_obj;
t_symbol *x_name; //-- name of source array
t_pdstring_bytes x_bytes; //-- byte "buffer", really just aliases array t_float*
t_pdstring_atoms x_atoms; //-- output atom buffer
t_outlet *x_outlet;
} t_array2rawbytes;
/*=====================================================================
* Methods
*=====================================================================*/
/*--------------------------------------------------------------------
* get OFFSET LENGTH
*/
static void array2rawbytes_get(t_array2rawbytes *x, t_float offset_f, t_float len_f)
{
int offset=offset_f, len=len_f, fvecsize, cvecsize;
t_garray *a;
t_float *fvec;
unsigned char *cvec;
//-- sanity check(s)
if (!(a = (t_garray *)pd_findbyclass(x->x_name, garray_class))) {
pd_error(x, "array2rawbytes_get: no such array '%s'", x->x_name->s_name);
return;
}
//-- get float* from array
if (!garray_getfloatarray(a, &fvecsize, &fvec))
pd_error(x,"array2rawbytes: bad template for write to array '%s'", x->x_name->s_name);
//-- get character offset & len
cvec = (unsigned char*)fvec;
cvecsize = fvecsize*sizeof(t_float)/sizeof(unsigned char);
post("array2rawbytes[x=%p]: char data: cvecsize=%d", x, cvecsize);
//-- tweak out-of-bounds values
post("array2rawbytes[x=%p]: pre-tweak: offset=%d, len=%d", x, offset, len);
offset %= cvecsize;
if (len <= 0 || offset+len >= cvecsize)
len = cvecsize - offset;
post("array2rawbytes[x=%p]: post-tweak: offset=%d, len=%d", x, offset, len);
//-- munge x_bytes
x->x_bytes.b_buf = cvec+offset;
x->x_bytes.b_len = len;
//-- convert bytes -> atoms
pdstring_bytes2atoms(x, &x->x_atoms, &x->x_bytes, PDSTRING_EOS_NONE);
//-- output
outlet_list(x->x_outlet, &s_list, x->x_atoms.a_len, x->x_atoms.a_buf);
}
/*--------------------------------------------------------------------
* new
*/
static void *array2rawbytes_new(t_symbol *arrayname)
{
t_array2rawbytes *x = (t_array2rawbytes *)pd_new(array2rawbytes_class);
//-- init
x->x_name = arrayname;
pdstring_bytes_init(&x->x_bytes, 0); //-- gets clobbered by array data
pdstring_atoms_init(&x->x_atoms, PDSTRING_DEFAULT_BUFLEN);
//-- outlets
x->x_outlet = outlet_new(&x->x_obj, &s_list);
return (void *)x;
}
/*--------------------------------------------------------------------
* set ARRAYNAME
*/
static void array2rawbytes_set(t_array2rawbytes *x, t_symbol *arrayname)
{
x->x_name = arrayname;
}
/*--------------------------------------------------------------------
* free
*/
static void array2rawbytes_free(t_array2rawbytes *x)
{
pdstring_atoms_clear(&x->x_atoms);
outlet_free(x->x_outlet);
return;
}
/*--------------------------------------------------------------------
* setup: guts
*/
void array2rawbytes_setup_guts(void)
{
//-- class
array2rawbytes_class = class_new(gensym("array2rawbytes"),
(t_newmethod)array2rawbytes_new,
(t_method)array2rawbytes_free,
sizeof(t_array2rawbytes),
CLASS_DEFAULT,
A_DEFSYM, //-- arrayname
0);
//-- methods
class_addmethod(array2rawbytes_class, (t_method)array2rawbytes_get, gensym("get"), A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(array2rawbytes_class, (t_method)array2rawbytes_set, gensym("set"), A_DEFSYM, 0);
//-- help symbol
//class_sethelpsymbol(array2rawbytes_class, gensym("array2rawbytes-help.pd")); //-- breaks pd-extended help lookup
}
/*--------------------------------------------------------------------
* setup
*/
void array2rawbytes_setup(void)
{
post(array2rawbytes_banner);
array2rawbytes_setup_guts();
}
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