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937 lines
17 KiB
937 lines
17 KiB
/*
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* Copyright (c) 2003 Charles Samuels <charles@kde.org>
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*
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* This file is hereby licensed under the GNU General Public License version
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* 2 or later at your option.
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*
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* This file is licensed under the Qt Public License version 1 with the
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* condition that the licensed will be governed under the Laws of California
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* (USA) instead of Norway. Disputes will be settled in Santa Clara county
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* courts.
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*
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* This file is licensed under the following additional license. Be aware
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* that it is identical to the BSD license, except for the added clause 3:
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. By integrating this software into any other software codebase, you waive
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all rights to any patents associated with the stated codebase.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "vequalizer.h"
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#include "engine.h"
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#include "spline.h"
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#include "ksaver.h"
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#include <noatunarts.h>
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#include <app.h>
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#include <player.h>
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#include <common.h>
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#include <dynamicrequest.h>
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#include <artsflow.h>
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#include <soundserver.h>
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#include <ktempfile.h>
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#include <kio/netaccess.h>
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#include <kstandarddirs.h>
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#include <kconfig.h>
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#include <klocale.h>
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#include <tqdom.h>
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#include <tqtextstream.h>
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#include <tqfile.h>
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#include <math.h>
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#define EQ (napp->vequalizer())
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#define EQBACK (napp->player()->engine()->equalizer())
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using std::vector;
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static const double splineTension = 4.0;
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VBandsInterface::VBandsInterface()
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{
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}
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VBandsInterface::~VBandsInterface()
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{
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}
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VBand VBandsInterface::operator [] (int num)
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{
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return band(num);
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}
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struct VBand::Private
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{
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int refs;
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int index;
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int start, end;
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VBandsInterface *bands;
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};
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VBand::VBand(VBandsInterface *bands, int index, int start, int end)
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{
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d = new Private;
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d->refs=1;
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d->index = index;
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d->start = start;
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d->end = end;
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d->bands = bands;
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}
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VBand::~VBand()
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{
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if (--d->refs == 0)
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{
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delete d;
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}
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}
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VBand::VBand(const VBand ©)
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{
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d=0;
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operator=(copy);
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}
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VBand & VBand::operator =(const VBand ©)
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{
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if (d && --d->refs == 0)
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{
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delete d;
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}
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d= copy.d;
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d->refs++;
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return *this;
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}
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int VBand::level() const
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{
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return d->bands->level(d->index);
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}
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void VBand::setLevel(int l)
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{
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d->bands->setLevel(d->index, l);
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}
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int VBand::start() const
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{
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return d->start;
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}
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int VBand::end() const
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{
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return d->end;
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}
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int VBand::center() const
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{
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return (d->start + d->end)/2;
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}
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static TQString formatFreq(int f, bool withHz)
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{
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TQString format;
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if (f<991)
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format=TQString::number(f);
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else
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format=TQString::number((int)((f+500)/1000.0))+"k";
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if (withHz)
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format+="Hz";
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return format;
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}
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TQString VBand::formatStart(bool withHz) const
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{
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return formatFreq(d->start, withHz);
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}
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TQString VBand::formatEnd(bool withHz) const
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{
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return formatFreq(d->end, withHz);
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}
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TQString VBand::format(bool withHz) const
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{
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return formatFreq(center(), withHz);
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}
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struct VInterpolation::Private
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{
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int bands;
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Spline spline;
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};
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VInterpolation::VInterpolation(int bands)
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{
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d = new Private;
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d->bands = bands;
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}
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VInterpolation::~VInterpolation()
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{
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delete d;
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}
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int VInterpolation::bands() const
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{
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return d->bands;
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}
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void VInterpolation::getFrequencies(int num, int *low, int *high) const
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{
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TQValueList<int> fs = VEqualizer::frequencies(bands());
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if (num == 0) *low = 1;
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else *low = fs[num-1]+1;
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*high=fs[num];
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}
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VBand VInterpolation::band(int num)
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{
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int low, high;
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getFrequencies(num, &low, &high);
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return VBand(this, num, low, high);
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}
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int VInterpolation::level(int index) const
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{
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const_cast<VInterpolation*>(this)->refresh();
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double x = onSpline(index);
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return int(d->spline[x*splineTension]);
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}
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void VInterpolation::setLevel(int index, int level)
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{
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refresh();
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double numbands = double(bands());
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Spline spline;
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for (int i=0; i < numbands; ++i)
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{
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VBand b = band(i);
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spline.add(i*splineTension, double(index == i ? level : b.level()));
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}
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int realbands = EQ->bands();
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TQValueList<int> values;
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for (int i=0; i < realbands; ++i)
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{
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// i
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// realbands numbands
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double x = double(i)*numbands/double(realbands)*splineTension;
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double value = spline[x];
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values.append(int(value));
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}
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EQ->setLevels(values);
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}
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double VInterpolation::onSpline(int bandNum) const
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{
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double maxReal(EQ->bands()); // 2
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double maxInter(bands()); // 4
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double offset(bandNum); // 4
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return maxReal/maxInter*offset;
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}
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void VInterpolation::refresh()
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{
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d->spline.clear();
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VEqualizer *eq = EQ;
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for (int i=0; i < eq->bands(); ++i)
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{
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VBand band = eq->band(i);
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d->spline.add(double(i*splineTension), double(band.level()));
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}
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}
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struct VEqualizer::Private
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{
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struct BandInfo
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{
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int level;
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int start;
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int end;
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};
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std::vector<BandInfo> bands;
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int preamp;
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};
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/* rate 4
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27 54 0-108 108
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81 163 109-217 108
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243 514 218-810 269
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729 1621 811-2431 1620
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2187 4661 2432-7290 4858
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6561 13645 7291+ 12708
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*/
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VEqualizer::VEqualizer()
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{
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d = new Private;
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d->preamp=1;
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setBands(6, false);
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}
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void VEqualizer::init()
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{
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KURL url;
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url.setPath(kapp->dirs()->localkdedir()+"/share/apps/noatun/equalizer");
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if(!load(url))
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{
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setPreamp(0);
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disable();
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}
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else
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{
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KConfig *config=kapp->config();
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config->setGroup("Equalizer");
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setEnabled(config->readBoolEntry("enabled", false));
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}
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}
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VEqualizer::~VEqualizer()
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{
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KURL url;
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url.setPath(kapp->dirs()->localkdedir()+"/share/apps/noatun/equalizer");
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save(url, "auto");
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delete d;
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}
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int VEqualizer::start()
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{
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return 20;
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}
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int VEqualizer::end()
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{
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return 20000;
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}
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int VEqualizer::maxBands() const
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{
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return 14;
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}
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int VEqualizer::minBands() const
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{
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return 2;
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}
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TQValueList<int> VEqualizer::frequencies(int _num)
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{
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#if 0
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TQValueList<int> fs;
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fs += 108;
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fs += 217;
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fs += 810;
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fs += 2431;
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fs += 7290;
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fs += 19999;
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return fs;
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#else
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// we're looking for
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// ?^_num = end()-start()
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// so log[?] (end()-start()) = _num
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// log(end()-start()) / log(?) = _num
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// log(end()-start()) = _num * log(?)
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// log(end()-start()) / _num = log(?)
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// ? = 10^(log(end()-start()) / _num)
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double num = double(_num);
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double vstart = double(start());
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double vend = double(end());
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const double base = ::pow(10.0, ::log10(vend-vstart)/num);
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TQValueList<int> fs;
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for (double i=1.0; i <= num; i++)
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{
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double f = ::pow(base, i);
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f += vstart;
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fs.append(int(f));
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}
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return fs;
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#endif
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}
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void VEqualizer::setBands(int num, bool interpolate)
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{
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if (interpolate)
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{
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setBands(num);
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return;
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}
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if (num > maxBands())
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num=maxBands();
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else if (num < minBands()) num = minBands();
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if (num == bands()) return;
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TQValueList<int> fs = VEqualizer::frequencies(num);
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std::vector<Private::BandInfo> modified;
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int bstart=0;
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for (TQValueList<int>::Iterator i(fs.begin()); i != fs.end(); ++i)
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{
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Private::BandInfo info;
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info.start = bstart+1;
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info.level = 0;
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info.end = *i;
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bstart = info.end;
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modified.push_back(info);
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}
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d->bands = modified;
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update(true);
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emit changedBands();
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emit changed();
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}
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void VEqualizer::setPreamp(int preamp)
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{
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d->preamp = preamp;
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EQBACK->preamp(pow(2,float(preamp)/100.0));
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emit changed();
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emit preampChanged();
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emit preampChanged(preamp);
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}
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void VEqualizer::setBands(int num)
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{
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if (num == bands()) return;
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VInterpolation ip(num);
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std::vector<Private::BandInfo> modified;
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for (int i=0; i < num; ++i)
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{
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Private::BandInfo info;
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VBand b = ip[i];
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info.level = b.level();
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info.start = b.start();
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info.end = b.end();
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modified.push_back(info);
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}
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d->bands = modified;
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update(true);
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emit changedBands();
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emit changed();
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}
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VBand VEqualizer::band(int num)
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{
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return VBand(this, num, d->bands[num].start, d->bands[num].end);
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}
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int VEqualizer::bands() const
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{
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return d->bands.size();
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}
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bool VEqualizer::isEnabled() const
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{
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return bool(EQBACK->enabled());
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}
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int VEqualizer::preamp() const
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{
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return d->preamp;
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}
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void VEqualizer::enable()
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{
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setEnabled(true);
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}
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void VEqualizer::disable()
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{
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setEnabled(false);
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}
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int VEqualizer::level(int index) const
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{
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return d->bands[index].level;
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}
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void VEqualizer::setLevel(int index, int level)
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{
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d->bands[index].level = level;
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update();
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emit changed();
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emit modified();
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}
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void VEqualizer::setLevels(const TQValueList<int> &levels)
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{
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int index=0;
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for (
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TQValueList<int>::ConstIterator i(levels.begin());
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i != levels.end(); ++i
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)
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{
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d->bands[index].level = *i;
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index++;
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}
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update();
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emit changed();
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emit modified();
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}
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void VEqualizer::setEnabled(bool e)
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{
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update(true); // just in case
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EQBACK->enabled((long)e);
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KConfig *config=kapp->config();
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config->setGroup("Equalizer");
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config->writeEntry("enabled", e);
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config->sync();
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emit enabled(e);
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if (e)
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emit enabled();
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else
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emit disabled();
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}
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void VEqualizer::update(bool full)
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{
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std::vector<float> levels;
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std::vector<float> mids;
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std::vector<float> widths;
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for (unsigned int i=0; i < d->bands.size(); ++i)
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{
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Private::BandInfo &info = d->bands[i];
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levels.push_back(::pow(2.0, float(info.level)/50.0));
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if (full)
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{
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int mid = info.start + info.end;
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mids.push_back(float(mid)*0.5);
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widths.push_back(float(info.end - info.start));
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}
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}
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if (full)
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EQBACK->set(levels, mids, widths);
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else
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EQBACK->levels(levels);
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}
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bool VEqualizer::save(const KURL &filename, const TQString &friendly) const
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{
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Noatun::KSaver saver(filename);
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if(!saver.open()) return false;
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saver.textStream() << toString(friendly);
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saver.close();
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return saver.close();
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}
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bool VEqualizer::load(const KURL &filename)
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{
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TQString dest;
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if(KIO::NetAccess::download(filename, dest, 0L))
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{
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TQFile file(dest);
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if (!file.open(IO_ReadOnly))
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return false;
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TQTextStream t(&file);
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TQString str = t.read();
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fromString(str);
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return true;
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}
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return false;
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}
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TQString VEqualizer::toString(const TQString &name) const
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{
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TQDomDocument doc("noatunequalizer");
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doc.setContent(TQString("<!DOCTYPE NoatunEqualizer><noatunequalizer/>"));
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TQDomElement docElem = doc.documentElement();
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{
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docElem.setAttribute("level", preamp());
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docElem.setAttribute("name", name);
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docElem.setAttribute("version", napp->version());
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}
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int bandc = bands();
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for (int i=0; i < bandc; ++i)
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{
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VBand band = const_cast<VEqualizer*>(this)->operator[](i);
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TQDomElement elem = doc.createElement("band");
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elem.setAttribute("start", band.start());
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elem.setAttribute("end", band.end());
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elem.setAttribute("level", band.level());
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|
|
docElem.appendChild(elem);
|
|
}
|
|
|
|
return doc.toString();
|
|
}
|
|
|
|
bool VEqualizer::fromString(const TQString &str)
|
|
{
|
|
TQDomDocument doc("noatunequalizer");
|
|
if (!doc.setContent(str))
|
|
return false;
|
|
|
|
TQDomElement docElem = doc.documentElement();
|
|
if (docElem.tagName()!="noatunequalizer")
|
|
return false;
|
|
|
|
setPreamp(docElem.attribute("level", "0").toInt());
|
|
|
|
std::vector<Private::BandInfo> modified;
|
|
for (TQDomNode n = docElem.firstChild(); !n.isNull(); n = n.nextSibling())
|
|
{
|
|
TQDomElement e = n.toElement();
|
|
if(e.isNull()) continue;
|
|
if (e.tagName().lower() != "band") continue;
|
|
|
|
Private::BandInfo data;
|
|
|
|
data.level = e.attribute("level", "0").toInt();
|
|
data.start = e.attribute("start", "1").toInt();
|
|
data.end = e.attribute("end", "19999").toInt();
|
|
|
|
modified.push_back(data);
|
|
}
|
|
d->bands = modified;
|
|
update(true);
|
|
|
|
emit changedBands();
|
|
emit changed();
|
|
return true;
|
|
}
|
|
|
|
static TQString makePresetFile()
|
|
{
|
|
TQString basedir=kapp->dirs()->localkdedir()+"/share/apps/noatun/eq.preset/";
|
|
// now append a filename that doesn't exist
|
|
KStandardDirs::makeDir(basedir);
|
|
TQString fullpath;
|
|
int num=0;
|
|
do
|
|
{
|
|
if (num)
|
|
fullpath=basedir+"preset."+TQString::number(num);
|
|
else
|
|
fullpath=basedir+"preset";
|
|
num++;
|
|
}
|
|
while (TQFile(fullpath).exists());
|
|
return fullpath;
|
|
}
|
|
|
|
VPreset VEqualizer::createPreset(const TQString &name, bool smart)
|
|
{
|
|
if (presetExists(name) && !smart) return VPreset();
|
|
TQString nameReal=name;
|
|
{
|
|
int number=1;
|
|
while (presetExists(nameReal))
|
|
{
|
|
nameReal=name+" ("+TQString::number(number)+')';
|
|
number++;
|
|
}
|
|
}
|
|
|
|
VPreset preset(makePresetFile());
|
|
preset.setName(nameReal);
|
|
|
|
save(preset.file(), nameReal);
|
|
KConfig *config=kapp->config();
|
|
config->setGroup("Equalizer");
|
|
TQStringList list = config->readListEntry("presets");
|
|
list += preset.file();
|
|
config->writeEntry("presets", list);
|
|
config->sync();
|
|
|
|
emit created(preset);
|
|
return preset;
|
|
}
|
|
|
|
|
|
TQValueList<VPreset> VEqualizer::presets() const
|
|
{
|
|
KConfig *conf=KGlobal::config();
|
|
conf->setGroup("Equalizer");
|
|
|
|
TQStringList list;
|
|
if (conf->hasKey("presets"))
|
|
{
|
|
list=conf->readListEntry("presets");
|
|
}
|
|
else
|
|
{
|
|
list=kapp->dirs()->findAllResources("data", "noatun/eq.preset/*");
|
|
conf->writeEntry("presets", list);
|
|
conf->sync();
|
|
}
|
|
|
|
TQValueList<VPreset> presets;
|
|
|
|
for (TQStringList::Iterator i = list.begin(); i!=list.end(); ++i)
|
|
{
|
|
TQFile file(*i);
|
|
if (!file.open(IO_ReadOnly)) continue;
|
|
|
|
TQDomDocument doc("noatunequalizer");
|
|
if (!doc.setContent(&file)) continue;
|
|
|
|
TQDomElement docElem = doc.documentElement();
|
|
if (docElem.tagName()!="noatunequalizer") continue;
|
|
|
|
presets.append(VPreset(*i));
|
|
}
|
|
return presets;
|
|
}
|
|
|
|
VPreset VEqualizer::presetByName(const TQString &name)
|
|
{
|
|
TQValueList<VPreset> pr = presets();
|
|
for (
|
|
TQValueList<VPreset>::Iterator i(pr.begin());
|
|
i != pr.end(); ++i
|
|
)
|
|
{
|
|
if ((*i).name() == name)
|
|
return *i;
|
|
}
|
|
return VPreset();
|
|
}
|
|
|
|
VPreset VEqualizer::presetByFile(const TQString &file)
|
|
{
|
|
KConfig *conf=KGlobal::config();
|
|
conf->setGroup("Equalizer");
|
|
TQStringList list=kapp->config()->readListEntry("presets");
|
|
if (list.contains(file))
|
|
return VPreset(file);
|
|
return VPreset();
|
|
}
|
|
|
|
bool VEqualizer::presetExists(const TQString &name) const
|
|
{
|
|
TQValueList<VPreset> list=presets();
|
|
for (
|
|
TQValueList<VPreset>::Iterator i(list.begin());
|
|
i != list.end(); ++i
|
|
)
|
|
{
|
|
if ((*i).name() == name)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
struct VPreset::Private
|
|
{
|
|
TQString file;
|
|
};
|
|
|
|
|
|
|
|
VPreset::VPreset(const TQString &file)
|
|
{
|
|
d = new Private;
|
|
d->file = file;
|
|
|
|
}
|
|
|
|
|
|
VPreset::VPreset()
|
|
{
|
|
d = new Private;
|
|
}
|
|
|
|
VPreset::VPreset(const VPreset ©)
|
|
{
|
|
d = new Private;
|
|
operator =(copy);
|
|
}
|
|
|
|
VPreset::~VPreset()
|
|
{
|
|
delete d;
|
|
}
|
|
|
|
bool VPreset::operator ==(const VPreset &other) const
|
|
{
|
|
return name() == other.name();
|
|
}
|
|
|
|
VPreset & VPreset::operator=(const VPreset ©)
|
|
{
|
|
d->file = copy.file();
|
|
return *this;
|
|
}
|
|
|
|
TQString VPreset::name() const
|
|
{
|
|
TQFile file(d->file);
|
|
if (!file.open(IO_ReadOnly)) return 0;
|
|
|
|
TQDomDocument doc("noatunequalizer");
|
|
if (!doc.setContent(&file)) return 0;
|
|
|
|
TQDomElement docElem = doc.documentElement();
|
|
if (docElem.tagName()!="noatunequalizer") return 0;
|
|
bool standard=docElem.attribute("default", "0")=="0";
|
|
TQString n=docElem.attribute("name", 0);
|
|
|
|
{ // All the translations for the presets
|
|
# ifdef I18N_STUFF
|
|
I18N_NOOP("Trance");
|
|
I18N_NOOP("Dance");
|
|
I18N_NOOP("Metal");
|
|
I18N_NOOP("Jazz");
|
|
I18N_NOOP("Zero");
|
|
I18N_NOOP("Eclectic Guitar");
|
|
# endif
|
|
}
|
|
|
|
if (standard)
|
|
n=i18n(n.local8Bit());
|
|
|
|
return n;
|
|
}
|
|
|
|
bool VPreset::setName(const TQString &name)
|
|
{
|
|
TQFile file(d->file);
|
|
if (!file.open(IO_ReadOnly)) return false;
|
|
|
|
TQDomDocument doc("noatunequalizer");
|
|
if (!doc.setContent(&file)) return false;
|
|
|
|
TQDomElement docElem = doc.documentElement();
|
|
if (docElem.tagName()!="noatunequalizer") return false;
|
|
|
|
if (docElem.attribute("name") == name) return true;
|
|
if (EQ->presetByName(name)) return false;
|
|
|
|
docElem.setAttribute("name", name);
|
|
file.close();
|
|
|
|
if (!file.open(IO_ReadWrite | IO_Truncate)) return false;
|
|
|
|
TQTextStream s(&file);
|
|
s << doc.toString();
|
|
file.close();
|
|
|
|
emit EQ->renamed(*this);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool VPreset::isValid() const
|
|
{
|
|
return d->file.length();
|
|
}
|
|
|
|
void VPreset::save()
|
|
{
|
|
KURL url;
|
|
url.setPath(d->file);
|
|
EQ->load(url);
|
|
}
|
|
|
|
void VPreset::load() const
|
|
{
|
|
KURL url;
|
|
url.setPath(d->file);
|
|
EQ->load(url);
|
|
}
|
|
|
|
TQString VPreset::file() const
|
|
{
|
|
return d->file;
|
|
}
|
|
|
|
void VPreset::remove()
|
|
{
|
|
KConfig *config=kapp->config();
|
|
config->setGroup("Equalizer");
|
|
TQStringList items=config->readListEntry("presets");
|
|
items.remove(file());
|
|
config->writeEntry("presets", items);
|
|
config->sync();
|
|
|
|
emit EQ->removed(*this);
|
|
|
|
if (file().find(kapp->dirs()->localkdedir())==0)
|
|
{
|
|
TQFile f(file());
|
|
f.remove();
|
|
}
|
|
d->file = "";
|
|
}
|
|
|
|
|
|
#undef EQ
|
|
#undef EQBACK
|
|
|
|
#include "vequalizer.moc"
|
|
|