From 8d0fe851bf2d39a9318e8712477f619564a53dcf Mon Sep 17 00:00:00 2001
From: negativeExponent <54053706+negativeExponent@users.noreply.github.com>
Date: Fri, 9 Feb 2024 10:19:47 +0800
Subject: [PATCH] QT: Fix volume adjustment for APU

Volume adjustments for the apu channel has a range of 0-256. With a value of 256, this acts as a bypass (toggle) and skips the computation entirely when set. This fixes issues when the original signal is too low already that passing it through volume controls will attunuate the signal instead and silence it.

The main volume does not behave the same way and 256 is not a toggle, so left it as-is.

@thor2016 feel free to make it better if necessary, maybe a toggle instead of a 256 max value or something.
---
 src/drivers/Qt/ConsoleSoundConf.cpp | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/drivers/Qt/ConsoleSoundConf.cpp b/src/drivers/Qt/ConsoleSoundConf.cpp
index 93a71539..8170e2f3 100644
--- a/src/drivers/Qt/ConsoleSoundConf.cpp
+++ b/src/drivers/Qt/ConsoleSoundConf.cpp
@@ -189,10 +189,10 @@ ConsoleSndConfDialog_t::ConsoleSndConfDialog_t(QWidget *parent)
 
 	frame = new QGroupBox(tr("Triangle"));
 	vbox2 = new QVBoxLayout();
-	triLbl = new QLabel("255");
+	triLbl = new QLabel("256");
 	vslider = new QSlider(Qt::Vertical);
 	vslider->setMinimum(0);
-	vslider->setMaximum(255);
+	vslider->setMaximum(256);
 	setSliderFromProperty(vslider, triLbl, "SDL.Sound.TriangleVolume");
 
 	vbox2->addWidget(triLbl);
@@ -204,10 +204,10 @@ ConsoleSndConfDialog_t::ConsoleSndConfDialog_t(QWidget *parent)
 
 	frame = new QGroupBox(tr("Square1"));
 	vbox2 = new QVBoxLayout();
-	sqr1Lbl = new QLabel("255");
+	sqr1Lbl = new QLabel("256");
 	vslider = new QSlider(Qt::Vertical);
 	vslider->setMinimum(0);
-	vslider->setMaximum(255);
+	vslider->setMaximum(256);
 	setSliderFromProperty(vslider, sqr1Lbl, "SDL.Sound.Square1Volume");
 
 	vbox2->addWidget(sqr1Lbl);
@@ -219,10 +219,10 @@ ConsoleSndConfDialog_t::ConsoleSndConfDialog_t(QWidget *parent)
 
 	frame = new QGroupBox(tr("Square2"));
 	vbox2 = new QVBoxLayout();
-	sqr2Lbl = new QLabel("255");
+	sqr2Lbl = new QLabel("256");
 	sqr2Slider = new QSlider(Qt::Vertical);
 	sqr2Slider->setMinimum(0);
-	sqr2Slider->setMaximum(255);
+	sqr2Slider->setMaximum(256);
 	setSliderFromProperty(sqr2Slider, sqr2Lbl, "SDL.Sound.Square2Volume");
 
 	vbox2->addWidget(sqr2Lbl);
@@ -234,10 +234,10 @@ ConsoleSndConfDialog_t::ConsoleSndConfDialog_t(QWidget *parent)
 
 	frame = new QGroupBox(tr("Noise"));
 	vbox2 = new QVBoxLayout();
-	nseLbl = new QLabel("255");
+	nseLbl = new QLabel("256");
 	nseSlider = new QSlider(Qt::Vertical);
 	nseSlider->setMinimum(0);
-	nseSlider->setMaximum(255);
+	nseSlider->setMaximum(256);
 	setSliderFromProperty(nseSlider, nseLbl, "SDL.Sound.NoiseVolume");
 
 	vbox2->addWidget(nseLbl);
@@ -249,10 +249,10 @@ ConsoleSndConfDialog_t::ConsoleSndConfDialog_t(QWidget *parent)
 
 	frame = new QGroupBox(tr("PCM"));
 	vbox2 = new QVBoxLayout();
-	pcmLbl = new QLabel("255");
+	pcmLbl = new QLabel("256");
 	pcmSlider = new QSlider(Qt::Vertical);
 	pcmSlider->setMinimum(0);
-	pcmSlider->setMaximum(255);
+	pcmSlider->setMaximum(256);
 	setSliderFromProperty(pcmSlider, pcmLbl, "SDL.Sound.PCMVolume");
 
 	vbox2->addWidget(pcmLbl);