diff options
Diffstat (limited to 'svtools/source/dialogs/mcvmath.cxx')
| -rw-r--r-- | svtools/source/dialogs/mcvmath.cxx | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/svtools/source/dialogs/mcvmath.cxx b/svtools/source/dialogs/mcvmath.cxx deleted file mode 100644 index 82c8302364..0000000000 --- a/svtools/source/dialogs/mcvmath.cxx +++ /dev/null @@ -1,132 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - -// MARKER(update_precomp.py): autogen include statement, do not remove -#include "precompiled_svtools.hxx" - -#include <mcvmath.hxx> - -// --------------------------------------------------------------------- -// die folgenden Tabellen enthalten sin(phi) * 2**14 -// fuer phi= 360Grad*2**-32 bis 360 Grad -// def. fuer x: phi=360Grad * 2**(x-16) -// d.h. x = 16 -> 360 Grad -// x = -16 -> (2**-16) * 360 Grad -// x: -16 ... 0 ... 15 -//x= 0, 1, 2, 3, 4, 5, 6, 7, -// 8, 9, 10, 11, 12, 13, 14, 15 - -static const short CosTab[16] = -{ - 16384, 16384, 16384, 16384, 16384, 16384, 16384, 16383, - 16379, 16364, 16305, 16069, 15137, 11585, 0, -16383 -}; -static const short SinTab[16]= -{ - 2, 3, 6, 13, 25, 50, 101, 201, - 402, 804, 1606, 3196, 6270, 11585, 16384, 0 -}; - -/************************************************************************** -|* -|* ImpMultBig2() -|* -|* Beschreibung Multiplikation fuer FixPoint-Berechnungen -|* -**************************************************************************/ - -// first parameter should be the bigger one - -Fix ImpMultBig2( const Fix& a, const Fix& b ) -{ - Fix f; - f.x = (((b.x+FIX_A2)>>FIX_P2)*a.x+FIX_A3)>>FIX_P3; - return f; -} - -/************************************************************************** -|* -|* ImpSqrt() -|* -|* Beschreibung Wurzelfunktion fuer FixPoint-Berechnungen -|* -**************************************************************************/ - -sal_uInt16 ImpSqrt( sal_uLong nRadi ) -{ - register sal_uLong inf = 1; - register sal_uLong sup = nRadi; - register sal_uLong sqr; - - if ( !nRadi ) - return 0; - - while ( (inf<<1) <= sup ) - { - sup >>= 1; - inf <<= 1; - } - sqr = (sup+inf) >> 1; // Anfangswert der Iteration - - sqr = (nRadi/sqr + sqr) >> 1; // 2 Newton-Iterationen reichen fuer - sqr = (nRadi/sqr + sqr) >> 1; // +- 1 Digit - - return sal::static_int_cast< sal_uInt16 >(sqr); -} - -/************************************************************************** -|* -|* ImpExPI() -|* -|* Beschreibung EXPI-Funktion fuer FixPoint-Berechnungen -|* -**************************************************************************/ - -// e**(i*nPhi), Einheit nPhi: 2**16 == 360 Grad - -FixCpx ImpExPI( sal_uInt16 nPhi ) -{ - short i; - FixCpx aIter(1L); // e**(0*i) - FixCpx Mul; - const char Sft=14-FIX_POST; - - for ( i = 15; i >= 0; i-- ) - { - if ( (1L<<i) & nPhi ) - { - Mul.r.x = CosTab[i]>>Sft; // e**(i(phi1+phi2)) = - Mul.i.x = SinTab[i]>>Sft; // e**(i*phi1)) * e**(i*phi2)) - aIter *= Mul; - } - } - - return aIter; -} - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |