From 05235802f7ae8fb1df952d28629dea26af5f1436 Mon Sep 17 00:00:00 2001 From: Stefan Metzmacher Date: Tue, 29 Jul 2008 20:01:23 +0000 Subject: import of zlib-1.2.3 We want to use zlib for the mszip ndr (de)compression later, we'll need to add some new functions to zlib. metze (This used to be commit 65c9e91a1bb24851a030a304d011558562cc50d6) --- source4/lib/zlib/contrib/masmx86/gvmat32c.c | 62 +++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 source4/lib/zlib/contrib/masmx86/gvmat32c.c (limited to 'source4/lib/zlib/contrib/masmx86/gvmat32c.c') diff --git a/source4/lib/zlib/contrib/masmx86/gvmat32c.c b/source4/lib/zlib/contrib/masmx86/gvmat32c.c new file mode 100644 index 0000000000..7ad2b27943 --- /dev/null +++ b/source4/lib/zlib/contrib/masmx86/gvmat32c.c @@ -0,0 +1,62 @@ +/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86 + * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. + * File written by Gilles Vollant, by modifiying the longest_match + * from Jean-loup Gailly in deflate.c + * it prepare all parameters and call the assembly longest_match_gvasm + * longest_match execute standard C code is wmask != 0x7fff + * (assembly code is faster with a fixed wmask) + * + * Read comment at beginning of gvmat32.asm for more information + */ + +#if defined(ASMV) && (!defined(NOOLDPENTIUMCODE)) +#include "deflate.h" + +/* if your C compiler don't add underline before function name, + define ADD_UNDERLINE_ASMFUNC */ +#ifdef ADD_UNDERLINE_ASMFUNC +#define longest_match_7fff _longest_match_7fff +#define longest_match_686 _longest_match_686 +#define cpudetect32 _cpudetect32 +#endif + + +unsigned long cpudetect32(); + +uInt longest_match_c( + deflate_state *s, + IPos cur_match); /* current match */ + + +uInt longest_match_7fff( + deflate_state *s, + IPos cur_match); /* current match */ + +uInt longest_match_686( + deflate_state *s, + IPos cur_match); /* current match */ + + +static uInt iIsPPro=2; + +void match_init () +{ + iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0; +} + +uInt longest_match( + deflate_state *s, + IPos cur_match) /* current match */ +{ + if (iIsPPro!=0) + return longest_match_686(s,cur_match); + + if (s->w_mask != 0x7fff) + return longest_match_686(s,cur_match); + + /* now ((s->w_mask == 0x7fff) && (iIsPPro==0)) */ + return longest_match_7fff(s,cur_match); +} + + +#endif /* defined(ASMV) && (!defined(NOOLDPENTIUMCODE)) */ -- cgit