diff options
Diffstat (limited to 'lzo/src/lzo_ptr.c')
| -rw-r--r-- | lzo/src/lzo_ptr.c | 38 |
1 files changed, 13 insertions, 25 deletions
diff --git a/lzo/src/lzo_ptr.c b/lzo/src/lzo_ptr.c index 064bddf1..38359ff2 100644 --- a/lzo/src/lzo_ptr.c +++ b/lzo/src/lzo_ptr.c @@ -2,19 +2,7 @@ This file is part of the LZO real-time data compression library. - Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer - Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer + Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer All Rights Reserved. The LZO library is free software; you can redistribute it and/or @@ -51,10 +39,9 @@ __lzo_ptr_linear(const lzo_voidp ptr) lzo_uintptr_t p; #if (LZO_ARCH_I086) - p = (((lzo_uintptr_t)(ACC_PTR_FP_SEG(ptr))) << (16 - ACC_MM_AHSHIFT)) + (ACC_PTR_FP_OFF(ptr)); +#error "LZO_ARCH_I086 is unsupported" #elif (LZO_MM_PVP) - p = (lzo_uintptr_t) (ptr); - p = (p << 3) | (p >> 61); +#error "LZO_MM_PVP is unsupported" #else p = (lzo_uintptr_t) PTR_LINEAR(ptr); #endif @@ -70,23 +57,24 @@ __lzo_ptr_linear(const lzo_voidp ptr) LZO_PUBLIC(unsigned) __lzo_align_gap(const lzo_voidp ptr, lzo_uint size) { -#if defined(__LZO_UINTPTR_T_IS_POINTER) - size_t n = (size_t) ptr; - n = (((n + size - 1) / size) * size) - n; +#if (__LZO_UINTPTR_T_IS_POINTER) +#error "__LZO_UINTPTR_T_IS_POINTER is unsupported" #else lzo_uintptr_t p, n; + if (size < 2) return 0; p = __lzo_ptr_linear(ptr); +#if 0 n = (((p + size - 1) / size) * size) - p; +#else + if ((size & (size - 1)) != 0) + return 0; + n = size; n = ((p + n - 1) & ~(n - 1)) - p; +#endif #endif - - assert(size > 0); assert((long)n >= 0); assert(n <= size); return (unsigned)n; } - -/* -vi:ts=4:et -*/ +/* vim:set ts=4 sw=4 et: */ |