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-rw-r--r--libguile/array-handle.h129
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diff --git a/libguile/array-handle.h b/libguile/array-handle.h
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+++ b/libguile/array-handle.h
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+/* classes: h_files */
+
+#ifndef SCM_ARRAY_HANDLE_H
+#define SCM_ARRAY_HANDLE_H
+
+/* Copyright (C) 1995,1996,1997,1999,2000,2001, 2004, 2006, 2008, 2009 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
+ */
+
+
+
+#include "libguile/__scm.h"
+
+
+
+struct scm_t_array_handle;
+
+typedef SCM (*scm_i_t_array_ref) (struct scm_t_array_handle *, size_t);
+typedef void (*scm_i_t_array_set) (struct scm_t_array_handle *, size_t, SCM);
+
+typedef struct
+{
+ scm_t_bits tag;
+ scm_t_bits mask;
+ scm_i_t_array_ref vref;
+ scm_i_t_array_set vset;
+ void (*get_handle)(SCM, struct scm_t_array_handle*);
+} scm_t_array_implementation;
+
+#define SCM_ARRAY_IMPLEMENTATION(tag_,mask_,vref_,vset_,handle_) \
+ SCM_SNARF_INIT ({ \
+ scm_t_array_implementation impl; \
+ impl.tag = tag_; impl.mask = mask_; \
+ impl.vref = vref_; impl.vset = vset_; \
+ impl.get_handle = handle_; \
+ scm_i_register_array_implementation (&impl); \
+ })
+
+
+SCM_INTERNAL void scm_i_register_array_implementation (scm_t_array_implementation *impl);
+SCM_INTERNAL scm_t_array_implementation* scm_i_array_implementation_for_obj (SCM obj);
+
+
+
+
+typedef struct scm_t_array_dim
+{
+ ssize_t lbnd;
+ ssize_t ubnd;
+ ssize_t inc;
+} scm_t_array_dim;
+
+typedef enum {
+ SCM_ARRAY_ELEMENT_TYPE_SCM = 0, /* SCM values */
+ SCM_ARRAY_ELEMENT_TYPE_CHAR = 1, /* characters */
+ SCM_ARRAY_ELEMENT_TYPE_BIT = 2, /* packed numeric values */
+ SCM_ARRAY_ELEMENT_TYPE_VU8 = 3,
+ SCM_ARRAY_ELEMENT_TYPE_U8 = 4,
+ SCM_ARRAY_ELEMENT_TYPE_S8 = 5,
+ SCM_ARRAY_ELEMENT_TYPE_U16 = 6,
+ SCM_ARRAY_ELEMENT_TYPE_S16 = 7,
+ SCM_ARRAY_ELEMENT_TYPE_U32 = 8,
+ SCM_ARRAY_ELEMENT_TYPE_S32 = 9,
+ SCM_ARRAY_ELEMENT_TYPE_U64 = 10,
+ SCM_ARRAY_ELEMENT_TYPE_S64 = 11,
+ SCM_ARRAY_ELEMENT_TYPE_F32 = 12,
+ SCM_ARRAY_ELEMENT_TYPE_F64 = 13,
+ SCM_ARRAY_ELEMENT_TYPE_C32 = 14,
+ SCM_ARRAY_ELEMENT_TYPE_C64 = 15,
+ SCM_ARRAY_ELEMENT_TYPE_LAST = 15,
+} scm_t_array_element_type;
+
+SCM_INTERNAL SCM scm_i_array_element_types[];
+
+
+typedef struct scm_t_array_handle {
+ SCM array;
+ scm_t_array_implementation *impl;
+ /* `Base' is an offset into elements or writable_elements, corresponding to
+ the first element in the array. It would be nicer just to adjust the
+ elements/writable_elements pointer, but we can't because that element might
+ not even be byte-addressable, as is the case with bitvectors. A nicer
+ solution would be, well, nice.
+ */
+ size_t base;
+ size_t ndims; /* ndims == the rank of the array */
+ scm_t_array_dim *dims;
+ scm_t_array_dim dim0;
+ scm_t_array_element_type element_type;
+ const void *elements;
+ void *writable_elements;
+} scm_t_array_handle;
+
+#define scm_array_handle_rank(h) ((h)->ndims)
+#define scm_array_handle_dims(h) ((h)->dims)
+
+SCM_API void scm_array_get_handle (SCM array, scm_t_array_handle *h);
+SCM_API ssize_t scm_array_handle_pos (scm_t_array_handle *h, SCM indices);
+SCM_API SCM scm_array_handle_element_type (scm_t_array_handle *h);
+SCM_API void scm_array_handle_release (scm_t_array_handle *h);
+SCM_API const SCM* scm_array_handle_elements (scm_t_array_handle *h);
+SCM_API SCM* scm_array_handle_writable_elements (scm_t_array_handle *h);
+
+/* See inline.h for scm_array_handle_ref and scm_array_handle_set */
+
+SCM_INTERNAL void scm_init_array_handle (void);
+
+
+#endif /* SCM_ARRAY_HANDLE_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/