isa-l/igzip/inflate_data_structs.asm

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; Copyright(c) 2011-2016 Intel Corporation All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions
; are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in
; the documentation and/or other materials provided with the
; distribution.
; * Neither the name of Intel Corporation nor the names of its
; contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; START_FIELDS
%macro START_FIELDS 0
%assign _FIELD_OFFSET 0
%assign _STRUCT_ALIGN 0
%endm
;; FIELD name size align
%macro FIELD 3
%define %%name %1
%define %%size %2
%define %%align %3
%assign _FIELD_OFFSET (_FIELD_OFFSET + (%%align) - 1) & (~ ((%%align)-1))
%%name equ _FIELD_OFFSET
%assign _FIELD_OFFSET _FIELD_OFFSET + (%%size)
%if (%%align > _STRUCT_ALIGN)
%assign _STRUCT_ALIGN %%align
%endif
%endm
;; See inflate_huff_code structure declaration in igzip_lib.h calculation explanation
%define L_REM (21 - ISAL_DECODE_LONG_BITS)
%define S_REM (15 - ISAL_DECODE_SHORT_BITS)
%define L_DUP ((1 << L_REM) - (L_REM + 1))
%define S_DUP ((1 << S_REM) - (S_REM + 1))
%define L_UNUSED ((1 << L_REM) - (1 << ((L_REM)/2)) - (1 << ((L_REM + 1)/2)) + 1)
%define S_UNUSED ((1 << S_REM) - (1 << ((S_REM)/2)) - (1 << ((S_REM + 1)/2)) + 1)
%define L_SIZE (286 + L_DUP + L_UNUSED)
%define S_SIZE (30 + S_DUP + S_UNUSED)
%define HUFF_CODE_LARGE_LONG_ALIGNED (L_SIZE + (-L_SIZE & 0xf))
%define HUFF_CODE_SMALL_LONG_ALIGNED (S_SIZE + (-S_SIZE & 0xf))
%define MAX_LONG_CODE_LARGE (L_SIZE + (-L_SIZE & 0xf))
%define MAX_LONG_CODE_SMALL (S_SIZE + (-S_SIZE & 0xf))
%define LARGE_SHORT_CODE_SIZE 4
%define LARGE_LONG_CODE_SIZE 2
%define SMALL_SHORT_CODE_SIZE 2
%define SMALL_LONG_CODE_SIZE 2
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START_FIELDS ;; inflate huff code
;; name size align
FIELD _short_code_lookup_large, LARGE_SHORT_CODE_SIZE * (1 << (ISAL_DECODE_LONG_BITS)), LARGE_LONG_CODE_SIZE
FIELD _long_code_lookup_large, LARGE_LONG_CODE_SIZE * MAX_LONG_CODE_LARGE, LARGE_SHORT_CODE_SIZE
%assign _inflate_huff_code_large_size _FIELD_OFFSET
%assign _inflate_huff_code_large_align _STRUCT_ALIGN
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START_FIELDS ;; inflate huff code
;; name size align
FIELD _short_code_lookup_small, SMALL_SHORT_CODE_SIZE * (1 << (ISAL_DECODE_SHORT_BITS)), SMALL_LONG_CODE_SIZE
FIELD _long_code_lookup_small, SMALL_LONG_CODE_SIZE * MAX_LONG_CODE_SMALL, SMALL_SHORT_CODE_SIZE
%assign _inflate_huff_code_small_size _FIELD_OFFSET
%assign _inflate_huff_code_small_align _STRUCT_ALIGN
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START_FIELDS ;; inflate state
;; name size align
FIELD _next_out, 8, 8
FIELD _avail_out, 4, 4
FIELD _total_out, 4, 4
FIELD _next_in, 8, 8
FIELD _read_in, 8, 8
FIELD _avail_in, 4, 4
FIELD _read_in_length,4, 4
FIELD _lit_huff_code, _inflate_huff_code_large_size, _inflate_huff_code_large_align
FIELD _dist_huff_code,_inflate_huff_code_small_size, _inflate_huff_code_small_align
FIELD _block_state, 4, 4
FIELD _dict_length, 4, 4
FIELD _bfinal, 4, 4
FIELD _crc_flag, 4, 4
FIELD _crc, 4, 4
FIELD _hist_bits, 4, 4
FIELD _type0_block_len, 4, 4
FIELD _write_overflow_lits, 4, 4
FIELD _write_overflow_len, 4, 4
FIELD _copy_overflow_len, 4, 4
FIELD _copy_overflow_dist, 4, 4
%assign _inflate_state_size _FIELD_OFFSET
%assign _inflate_state_align _STRUCT_ALIGN
_lit_huff_code_short_code_lookup equ _lit_huff_code+_short_code_lookup_large
_lit_huff_code_long_code_lookup equ _lit_huff_code+_long_code_lookup_large
_dist_huff_code_short_code_lookup equ _dist_huff_code+_short_code_lookup_small
_dist_huff_code_long_code_lookup equ _dist_huff_code+_long_code_lookup_small
ISAL_BLOCK_NEW_HDR equ 0
ISAL_BLOCK_HDR equ 1
ISAL_BLOCK_TYPE0 equ 2
ISAL_BLOCK_CODED equ 3
ISAL_BLOCK_INPUT_DONE equ 4
ISAL_BLOCK_FINISH equ 5
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