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Diffstat (limited to 'libguile/bytevectors.h')
-rw-r--r-- | libguile/bytevectors.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/libguile/bytevectors.h b/libguile/bytevectors.h new file mode 100644 index 000000000..980d6e267 --- /dev/null +++ b/libguile/bytevectors.h @@ -0,0 +1,172 @@ +#ifndef SCM_BYTEVECTORS_H +#define SCM_BYTEVECTORS_H + +/* Copyright 2009,2011,2018 + 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/>. */ + + + +#include <libguile/error.h> +#include "libguile/gc.h" + +#include "libguile/uniform.h" + + +/* R6RS bytevectors. */ + +/* The size in words of the bytevector header (type tag and flags, length, + and pointer to the underlying buffer). */ +#define SCM_BYTEVECTOR_HEADER_SIZE 4U + +#define SCM_BYTEVECTOR_LENGTH(_bv) \ + ((size_t) SCM_CELL_WORD_1 (_bv)) +#define SCM_BYTEVECTOR_CONTENTS(_bv) \ + ((signed char *) SCM_CELL_WORD_2 (_bv)) +#define SCM_BYTEVECTOR_PARENT(_bv) \ + (SCM_CELL_OBJECT_3 (_bv)) + + +SCM_API SCM scm_endianness_big; +SCM_API SCM scm_endianness_little; + +SCM_API SCM scm_c_make_bytevector (size_t); +SCM_API int scm_is_bytevector (SCM); +SCM_API size_t scm_c_bytevector_length (SCM); +SCM_API uint8_t scm_c_bytevector_ref (SCM, size_t); +SCM_API void scm_c_bytevector_set_x (SCM, size_t, uint8_t); + +SCM_API SCM scm_make_bytevector (SCM, SCM); +SCM_API SCM scm_native_endianness (void); +SCM_API SCM scm_bytevector_p (SCM); +SCM_API SCM scm_bytevector_length (SCM); +SCM_API SCM scm_bytevector_eq_p (SCM, SCM); +SCM_API SCM scm_bytevector_fill_x (SCM, SCM); +SCM_API SCM scm_bytevector_copy_x (SCM, SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_copy (SCM); + +SCM_API SCM scm_uniform_array_to_bytevector (SCM); + +SCM_API SCM scm_bytevector_to_u8_list (SCM); +SCM_API SCM scm_u8_list_to_bytevector (SCM); +SCM_API SCM scm_uint_list_to_bytevector (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_to_uint_list (SCM, SCM, SCM); +SCM_API SCM scm_sint_list_to_bytevector (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_to_sint_list (SCM, SCM, SCM); + +SCM_API SCM scm_bytevector_u16_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s16_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_u32_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s32_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_u64_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s64_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_u8_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s8_ref (SCM, SCM); +SCM_API SCM scm_bytevector_uint_ref (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_sint_ref (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u16_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s16_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u32_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s32_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u64_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s64_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u16_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s16_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u32_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s32_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u64_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s64_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u8_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s8_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_uint_set_x (SCM, SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_sint_set_x (SCM, SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u16_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s16_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u32_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s32_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u64_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s64_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_string_to_utf8 (SCM); +SCM_API SCM scm_string_to_utf16 (SCM, SCM); +SCM_API SCM scm_string_to_utf32 (SCM, SCM); +SCM_API SCM scm_utf8_to_string (SCM); +SCM_API SCM scm_utf16_to_string (SCM, SCM); +SCM_API SCM scm_utf32_to_string (SCM, SCM); + + + +/* Internal API. */ + +#define SCM_BYTEVECTOR_P(x) \ + (SCM_HAS_TYP7 (x, scm_tc7_bytevector)) +#define SCM_BYTEVECTOR_FLAGS(_bv) \ + (SCM_CELL_TYPE (_bv) >> 7UL) +#define SCM_SET_BYTEVECTOR_FLAGS(_bv, _f) \ + SCM_SET_CELL_TYPE ((_bv), \ + scm_tc7_bytevector | ((scm_t_bits)(_f) << 7UL)) + +#define SCM_F_BYTEVECTOR_CONTIGUOUS 0x100UL +#define SCM_F_BYTEVECTOR_IMMUTABLE 0x200UL + +#define SCM_MUTABLE_BYTEVECTOR_P(x) \ + (SCM_NIMP (x) && \ + ((SCM_CELL_TYPE (x) & (0x7fUL | (SCM_F_BYTEVECTOR_IMMUTABLE << 7UL))) \ + == scm_tc7_bytevector)) + +#define SCM_BYTEVECTOR_ELEMENT_TYPE(_bv) \ + (SCM_BYTEVECTOR_FLAGS (_bv) & 0xffUL) +#define SCM_BYTEVECTOR_CONTIGUOUS_P(_bv) \ + (SCM_BYTEVECTOR_FLAGS (_bv) & SCM_F_BYTEVECTOR_CONTIGUOUS) + +#define SCM_BYTEVECTOR_TYPE_SIZE(var) \ + (scm_i_array_element_type_sizes[SCM_BYTEVECTOR_ELEMENT_TYPE (var)]/8) +#define SCM_BYTEVECTOR_TYPED_LENGTH(var) \ + (SCM_BYTEVECTOR_LENGTH (var) / SCM_BYTEVECTOR_TYPE_SIZE (var)) + +/* Hint that is passed to `scm_gc_malloc ()' and friends. */ +#define SCM_GC_BYTEVECTOR "bytevector" + +#define SCM_VALIDATE_BYTEVECTOR(_pos, _obj) \ + SCM_ASSERT_TYPE (SCM_BYTEVECTOR_P (_obj), (_obj), (_pos), \ + FUNC_NAME, "bytevector") + +SCM_INTERNAL SCM scm_i_make_typed_bytevector (size_t, scm_t_array_element_type); +SCM_INTERNAL SCM scm_c_take_typed_bytevector (signed char *, size_t, + scm_t_array_element_type, SCM); + +SCM_INTERNAL void scm_bootstrap_bytevectors (void); +SCM_INTERNAL void scm_init_bytevectors (void); + +SCM_INTERNAL SCM scm_i_native_endianness; +SCM_INTERNAL SCM scm_c_take_gc_bytevector (signed char *, size_t, SCM); + +SCM_INTERNAL int scm_i_print_bytevector (SCM, SCM, scm_print_state *); + +SCM_INTERNAL SCM scm_c_shrink_bytevector (SCM, size_t); +SCM_INTERNAL void scm_i_bytevector_generalized_set_x (SCM, size_t, SCM); +SCM_INTERNAL SCM scm_null_bytevector; + +#endif /* SCM_BYTEVECTORS_H */ |