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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsPkgInt_h__
#define nsPkgInt_h__
#include "nscore.h"
typedef enum {
eIdxSft4bits = 3,
eIdxSft8bits = 2,
eIdxSft16bits = 1
} nsIdxSft;
typedef enum {
eSftMsk4bits = 7,
eSftMsk8bits = 3,
eSftMsk16bits = 1
} nsSftMsk;
typedef enum {
eBitSft4bits = 2,
eBitSft8bits = 3,
eBitSft16bits = 4
} nsBitSft;
typedef enum {
eUnitMsk4bits = 0x0000000FL,
eUnitMsk8bits = 0x000000FFL,
eUnitMsk16bits = 0x0000FFFFL
} nsUnitMsk;
typedef struct nsPkgInt {
nsIdxSft idxsft;
nsSftMsk sftmsk;
nsBitSft bitsft;
nsUnitMsk unitmsk;
const uint32_t* const data;
} nsPkgInt;
#define PCK16BITS(a,b) ((uint32_t)(((b) << 16) | (a)))
#define PCK8BITS(a,b,c,d) PCK16BITS( ((uint32_t)(((b) << 8) | (a))), \
((uint32_t)(((d) << 8) | (c))))
#define PCK4BITS(a,b,c,d,e,f,g,h) PCK8BITS( ((uint32_t)(((b) << 4) | (a))), \
((uint32_t)(((d) << 4) | (c))), \
((uint32_t)(((f) << 4) | (e))), \
((uint32_t)(((h) << 4) | (g))) )
#define GETFROMPCK(i, c) \
(((((c).data)[(i)>>(c).idxsft])>>(((i)&(c).sftmsk)<<(c).bitsft))&(c).unitmsk)
#endif /* nsPkgInt_h__ */
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