diff options
Diffstat (limited to 'extensions/universalchardet/src/base/nsPkgInt.h')
-rw-r--r-- | extensions/universalchardet/src/base/nsPkgInt.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/extensions/universalchardet/src/base/nsPkgInt.h b/extensions/universalchardet/src/base/nsPkgInt.h new file mode 100644 index 000000000..488b2389d --- /dev/null +++ b/extensions/universalchardet/src/base/nsPkgInt.h @@ -0,0 +1,57 @@ +/* -*- 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__ */ + |