jthedering
b8cdd47f71
Added: Configuration Editor, which allows to edit configurations in a graphical user interface. Contains GUIs for most commands supported by E-APO, but as lines can also be edited directly, all commands can be used. Added: Command "GraphicEQ", which can act as a regular, fixed-band graphic equalizer (via the GUI) but also supports variable bands so that any desired frequency response can be specified. Internally, it is implemented via convolution with a generated IR. Added: Command "Convolution", which allows to convolve the signal with a user-provided impulse response to achieve e.g. equalization or reverberation effects. Improved: Configurator performs checks for registry values that are needed for the operation of E-APO, which may be changed by driver installations, fixing the values if necessary. Improved: Configurator shows which is the default device as a hint to the user.
130 lines
3.1 KiB
C++
130 lines
3.1 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2015 Jonas Thedering
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "FrequencyPlotView.h"
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#include "FrequencyPlotScene.h"
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using namespace std;
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static double maxX = 1000;
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static double maxY = 500;
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static double minHz = 1;
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static double maxHz = 30000;
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static double minDb = -100;
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static double maxDb = 100;
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vector<double> FrequencyPlotScene::bands15 = {25, 40, 63, 100, 160, 250, 400, 630, 1000, 1600, 2500, 4000, 6300, 10000, 16000};
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vector<double> FrequencyPlotScene::bands31 = {20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800,
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1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12500, 16000, 20000
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};
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vector<double> FrequencyPlotScene::bandsVar;
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FrequencyPlotScene::FrequencyPlotScene(QObject *parent) :
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QGraphicsScene(parent)
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{
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updateSceneRect();
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}
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void FrequencyPlotScene::addItem(FrequencyPlotItem* item)
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{
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QGraphicsScene::addItem(item);
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}
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double FrequencyPlotScene::xToHz(double x)
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{
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return pow(maxHz / minHz, x / zoom / maxX) * minHz;
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}
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double FrequencyPlotScene::hzToX(double hz)
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{
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if(hz < minHz || hz > maxHz)
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return -1;
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return log(hz / minHz) / log(maxHz / minHz) * maxX * zoom;
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}
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double FrequencyPlotScene::yToDb(double y)
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{
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return (minDb + (1 - y / zoom / maxY) * (maxDb - minDb));
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}
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double FrequencyPlotScene::dbToY(double db)
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{
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if(db < minDb || db > maxDb)
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return -1;
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return (1 - (db - minDb) / (maxDb - minDb)) * maxY * zoom;
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}
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double FrequencyPlotScene::getZoom() const
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{
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return zoom;
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}
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void FrequencyPlotScene::setZoom(double value)
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{
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zoom = value;
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updateSceneRect();
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for(QGraphicsItem* item : items())
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{
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FrequencyPlotItem* plotItem = (FrequencyPlotItem*)item;
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plotItem->updatePos();
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}
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}
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void FrequencyPlotScene::updateSceneRect()
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{
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setSceneRect(0, 0, maxX * zoom, maxY * zoom);
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}
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int FrequencyPlotScene::getBandCount() const
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{
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return bandCount;
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}
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void FrequencyPlotScene::setBandCount(int value)
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{
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if(value != bandCount)
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{
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bandCount = value;
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update();
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FrequencyPlotView* view = qobject_cast<FrequencyPlotView*>(views()[0]);
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view->updateHRuler();
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}
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}
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const vector<double>& FrequencyPlotScene::getBands()
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{
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return getBands(bandCount);
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}
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const std::vector<double>&FrequencyPlotScene::getBands(int count)
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{
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switch(count)
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{
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case 15:
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return bands15;
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case 31:
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return bands31;
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default:
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return bandsVar;
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}
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}
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