| Revision: | 1.1 |
| Committed: | Tue Feb 24 11:56:44 2009 UTC (16 years, 2 months ago) by loizides |
| Content type: | text/plain |
| Branch: | MAIN |
| CVS Tags: | Mit_032, Mit_031, Mit_025c_branch2, Mit_025c_branch1, Mit_030, Mit_029c, Mit_030_pre1, Mit_029a, Mit_029, Mit_029_pre1, Mit_028a, Mit_025c_branch0, Mit_028, Mit_027a, Mit_027, Mit_026, Mit_025e, Mit_025d, Mit_025c, Mit_025b, Mit_025a, Mit_025, Mit_025pre2, Mit_024b, Mit_025pre1, Mit_024a, Mit_024, Mit_023, Mit_022a, Mit_022, Mit_020d, TMit_020d, Mit_020c, Mit_021, Mit_021pre2, Mit_021pre1, Mit_020b, Mit_020a, Mit_020, Mit_020pre1, Mit_018, Mit_017, Mit_017pre3, Mit_017pre2, Mit_017pre1, V07-05-00, Mit_016, Mit_015b, Mit_015a, Mit_015, Mit_014e, Mit_014d, Mit_014c, Mit_014b, ConvRejection-10-06-09, Mit_014a, Mit_014, Mit_014pre3, Mit_014pre2, Mit_014pre1, Mit_013d, Mit_013c, Mit_013b, Mit_013a, Mit_013, Mit_013pre1, Mit_012i, Mit_012g, Mit_012f, Mit_012e, Mit_012d, Mit_012c, Mit_012b, Mit_012a, Mit_012, Mit_011a, Mit_011, Mit_010a, Mit_010, Mit_009c, Mit_009b, Mit_009a, Mit_009, Mit_008, Mit_008pre2, Mit_008pre1, HEAD |
| Branch point for: | Mit_025c_branch |
| Log Message: | Preload lib for compression improvements. |
| # | User | Rev | Content |
|---|---|---|---|
| 1 | loizides | 1.1 | /* lzo_ptr.h -- low-level pointer constructs |
| 2 | |||
| 3 | This file is part of the LZO real-time data compression library. | ||
| 4 | |||
| 5 | Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer | ||
| 6 | Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer | ||
| 7 | Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer | ||
| 8 | Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer | ||
| 9 | Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer | ||
| 10 | Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer | ||
| 11 | Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer | ||
| 12 | Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer | ||
| 13 | Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer | ||
| 14 | Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer | ||
| 15 | Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer | ||
| 16 | Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer | ||
| 17 | Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer | ||
| 18 | All Rights Reserved. | ||
| 19 | |||
| 20 | The LZO library is free software; you can redistribute it and/or | ||
| 21 | modify it under the terms of the GNU General Public License as | ||
| 22 | published by the Free Software Foundation; either version 2 of | ||
| 23 | the License, or (at your option) any later version. | ||
| 24 | |||
| 25 | The LZO library is distributed in the hope that it will be useful, | ||
| 26 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 27 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 28 | GNU General Public License for more details. | ||
| 29 | |||
| 30 | You should have received a copy of the GNU General Public License | ||
| 31 | along with the LZO library; see the file COPYING. | ||
| 32 | If not, write to the Free Software Foundation, Inc., | ||
| 33 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
| 34 | |||
| 35 | Markus F.X.J. Oberhumer | ||
| 36 | <markus@oberhumer.com> | ||
| 37 | http://www.oberhumer.com/opensource/lzo/ | ||
| 38 | */ | ||
| 39 | |||
| 40 | |||
| 41 | /* WARNING: this file should *not* be used by applications. It is | ||
| 42 | part of the implementation of the library and is subject | ||
| 43 | to change. | ||
| 44 | */ | ||
| 45 | |||
| 46 | |||
| 47 | #ifndef __LZO_PTR_H | ||
| 48 | #define __LZO_PTR_H | ||
| 49 | |||
| 50 | #ifdef __cplusplus | ||
| 51 | extern "C" { | ||
| 52 | #endif | ||
| 53 | |||
| 54 | |||
| 55 | /*********************************************************************** | ||
| 56 | // Integral types | ||
| 57 | ************************************************************************/ | ||
| 58 | |||
| 59 | #if !defined(lzo_uintptr_t) | ||
| 60 | # if defined(__LZO_MMODEL_HUGE) | ||
| 61 | # define lzo_uintptr_t unsigned long | ||
| 62 | # else | ||
| 63 | # define lzo_uintptr_t acc_uintptr_t | ||
| 64 | # ifdef __ACC_INTPTR_T_IS_POINTER | ||
| 65 | # define __LZO_UINTPTR_T_IS_POINTER 1 | ||
| 66 | # endif | ||
| 67 | # endif | ||
| 68 | #endif | ||
| 69 | |||
| 70 | |||
| 71 | /*********************************************************************** | ||
| 72 | // | ||
| 73 | ************************************************************************/ | ||
| 74 | |||
| 75 | /* Always use the safe (=integral) version for pointer-comparisions. | ||
| 76 | * The compiler should optimize away the additional casts anyway. | ||
| 77 | * | ||
| 78 | * Note that this only works if the representation and ordering | ||
| 79 | * of the pointer and the integral is the same (at bit level). | ||
| 80 | * | ||
| 81 | * Most 16-bit compilers have their own view about pointers - | ||
| 82 | * fortunately they don't care about comparing pointers | ||
| 83 | * that are pointing to Nirvana. | ||
| 84 | */ | ||
| 85 | |||
| 86 | #if (LZO_ARCH_I086) | ||
| 87 | #define PTR(a) ((lzo_bytep) (a)) | ||
| 88 | /* only need the low bits of the pointer -> offset is ok */ | ||
| 89 | #define PTR_ALIGNED_4(a) ((ACC_PTR_FP_OFF(a) & 3) == 0) | ||
| 90 | #define PTR_ALIGNED2_4(a,b) (((ACC_PTR_FP_OFF(a) | ACC_PTR_FP_OFF(b)) & 3) == 0) | ||
| 91 | #elif (LZO_MM_PVP) | ||
| 92 | #define PTR(a) ((lzo_bytep) (a)) | ||
| 93 | #define PTR_ALIGNED_8(a) ((((lzo_uintptr_t)(a)) >> 61) == 0) | ||
| 94 | #define PTR_ALIGNED2_8(a,b) ((((lzo_uintptr_t)(a)|(lzo_uintptr_t)(b)) >> 61) == 0) | ||
| 95 | #else | ||
| 96 | #define PTR(a) ((lzo_uintptr_t) (a)) | ||
| 97 | #define PTR_LINEAR(a) PTR(a) | ||
| 98 | #define PTR_ALIGNED_4(a) ((PTR_LINEAR(a) & 3) == 0) | ||
| 99 | #define PTR_ALIGNED_8(a) ((PTR_LINEAR(a) & 7) == 0) | ||
| 100 | #define PTR_ALIGNED2_4(a,b) (((PTR_LINEAR(a) | PTR_LINEAR(b)) & 3) == 0) | ||
| 101 | #define PTR_ALIGNED2_8(a,b) (((PTR_LINEAR(a) | PTR_LINEAR(b)) & 7) == 0) | ||
| 102 | #endif | ||
| 103 | |||
| 104 | #define PTR_LT(a,b) (PTR(a) < PTR(b)) | ||
| 105 | #define PTR_GE(a,b) (PTR(a) >= PTR(b)) | ||
| 106 | #define PTR_DIFF(a,b) (PTR(a) - PTR(b)) | ||
| 107 | #define pd(a,b) ((lzo_uint) ((a)-(b))) | ||
| 108 | |||
| 109 | |||
| 110 | LZO_EXTERN(lzo_uintptr_t) | ||
| 111 | __lzo_ptr_linear(const lzo_voidp ptr); | ||
| 112 | |||
| 113 | |||
| 114 | typedef union | ||
| 115 | { | ||
| 116 | char a_char; | ||
| 117 | unsigned char a_uchar; | ||
| 118 | short a_short; | ||
| 119 | unsigned short a_ushort; | ||
| 120 | int a_int; | ||
| 121 | unsigned int a_uint; | ||
| 122 | long a_long; | ||
| 123 | unsigned long a_ulong; | ||
| 124 | lzo_int a_lzo_int; | ||
| 125 | lzo_uint a_lzo_uint; | ||
| 126 | lzo_int32 a_lzo_int32; | ||
| 127 | lzo_uint32 a_lzo_uint32; | ||
| 128 | ptrdiff_t a_ptrdiff_t; | ||
| 129 | lzo_uintptr_t a_lzo_uintptr_t; | ||
| 130 | lzo_voidp a_lzo_voidp; | ||
| 131 | void * a_void_p; | ||
| 132 | lzo_bytep a_lzo_bytep; | ||
| 133 | lzo_bytepp a_lzo_bytepp; | ||
| 134 | lzo_uintp a_lzo_uintp; | ||
| 135 | lzo_uint * a_lzo_uint_p; | ||
| 136 | lzo_uint32p a_lzo_uint32p; | ||
| 137 | lzo_uint32 * a_lzo_uint32_p; | ||
| 138 | unsigned char * a_uchar_p; | ||
| 139 | char * a_char_p; | ||
| 140 | } | ||
| 141 | lzo_full_align_t; | ||
| 142 | |||
| 143 | |||
| 144 | |||
| 145 | #ifdef __cplusplus | ||
| 146 | } /* extern "C" */ | ||
| 147 | #endif | ||
| 148 | |||
| 149 | #endif /* already included */ | ||
| 150 | |||
| 151 | /* | ||
| 152 | vi:ts=4:et | ||
| 153 | */ | ||
| 154 |