| 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. |
| # | Content |
|---|---|
| 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 |