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/* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2003,2004, 2005, 2006, 2009, 2010, 2013, 2014 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "libguile/_scm.h"
#include "libguile/__scm.h"
#include "libguile/uniform.h"
const size_t scm_i_array_element_type_sizes[SCM_ARRAY_ELEMENT_TYPE_LAST + 1] = {
0,
0,
1,
8,
8, 8,
16, 16,
32, 32,
64, 64,
32, 64,
64, 128
};
size_t
scm_array_handle_uniform_element_size (scm_t_array_handle *h)
{
size_t ret = scm_i_array_element_type_sizes[h->element_type];
if (ret && ret % 8 == 0)
return ret / 8;
else if (ret)
scm_wrong_type_arg_msg (NULL, 0, h->array, "byte-aligned uniform array");
else
scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array");
}
size_t
scm_array_handle_uniform_element_bit_size (scm_t_array_handle *h)
{
size_t ret = scm_i_array_element_type_sizes[h->element_type];
if (ret)
return ret;
else
scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array");
}
const void *
scm_array_handle_uniform_elements (scm_t_array_handle *h)
{
size_t esize;
const scm_t_uint8 *ret;
esize = scm_array_handle_uniform_element_size (h);
ret = ((const scm_t_uint8 *) h->elements) + h->base * esize;
return ret;
}
void *
scm_array_handle_uniform_writable_elements (scm_t_array_handle *h)
{
if (h->writable_elements != h->elements)
scm_wrong_type_arg_msg (NULL, 0, h->array, "mutable array");
return (void *) scm_array_handle_uniform_elements (h);
}
void
scm_init_uniform (void)
{
#include "libguile/uniform.x"
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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