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/**
bespoke synth, a software modular synthesizer
Copyright (C) 2024 Ryan Challinor (contact: awwbees@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
//
// LevelMeterDisplay.cpp
// BespokeSynth
//
// Created by Ryan Challinor on 12/15/24.
//
//
#include "LevelMeterDisplay.h"
#include "SynthGlobals.h"
LevelMeterDisplay::LevelMeterDisplay()
{
for (size_t i = 0; i < mLevelMeters.size(); ++i)
{
mLevelMeters[i].mPeakTrackerSlow.SetDecayTime(3);
mLevelMeters[i].mPeakTrackerSlow.SetLimit(1);
}
}
LevelMeterDisplay::~LevelMeterDisplay()
{
}
void LevelMeterDisplay::Process(int channel, float* buffer, int bufferSize)
{
mLevelMeters[channel].mPeakTracker.Process(buffer, bufferSize);
mLevelMeters[channel].mPeakTrackerSlow.Process(buffer, bufferSize);
}
void LevelMeterDisplay::Draw(float x, float y, float width, float height, int numChannels)
{
for (int i = 0; i < numChannels; ++i)
{
float limit = mLevelMeters[i].mPeakTrackerSlow.GetLimit();
const int kNumSegments = 20;
const int kPaddingBetween = 1;
const int kPaddingVertical = 2;
float barHeight = (height - (kPaddingVertical * (numChannels - 1))) / numChannels;
float segmentWidth = width / kNumSegments;
for (int j = 0; j < kNumSegments; ++j)
{
ofPushStyle();
ofFill();
float level = mLevelMeters[i].mPeakTracker.GetPeak() / (limit > 0 ? limit : 1);
float slowLevel = mLevelMeters[i].mPeakTrackerSlow.GetPeak() / (limit > 0 ? limit : 1);
ofColor color(0, 255, 0);
if (j > kNumSegments - 3)
color.set(255, 0, 0);
else if (j > kNumSegments - 6)
color.set(255, 255, 0);
if (slowLevel > 0 && ofClamp(int(slowLevel * kNumSegments), 0, kNumSegments - 1) == j)
ofSetColor(color);
else if (level > 0 && level >= j / (float)kNumSegments)
ofSetColor(color * .9f);
else
ofSetColor(color * .5f);
ofRect(x + segmentWidth * j, y + i * (barHeight + 2), segmentWidth - kPaddingBetween, barHeight, 0);
ofPopStyle();
}
if (mLevelMeters[i].mPeakTrackerSlow.GetLastHitLimitTime() > gTime - 1000)
{
ofPushStyle();
ofSetColor(ofColor::red);
DrawTextBold("clipped", x + 10, y + i * (barHeight + 2) + 7, 10.0f);
ofPopStyle();
}
}
}
void LevelMeterDisplay::SetLimit(float limit)
{
for (size_t i = 0; i < mLevelMeters.size(); ++i)
mLevelMeters[i].mPeakTrackerSlow.SetLimit(limit);
}
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