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/* Copyright 1995-1998,2000-2006,2009-2010,2013-2014,2018
Free Software Foundation, Inc.
This file is part of Guile.
Guile 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.
Guile 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 Guile. If not, see
<https://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "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 uint8_t *ret;
esize = scm_array_handle_uniform_element_size (h);
ret = ((const uint8_t *) 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 "uniform.x"
}
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