slider_decibels.qc File Reference

#include "slider_decibels.qh"

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Functions
float	fromDecibelOfSquare (float f, float mi)
entity	makeXonoticDecibelsSlider (float theValueMin, float theValueMax, float theValueStep, string theCvar)
entity	makeXonoticDecibelsSlider_T (float theValueMin, float theValueMax, float theValueStep, string theCvar, string theTooltip)
	TEST (XonoticDecibelsSlider, SoundTest)
float	toDecibelOfSquare (float f, float mi)
void	XonoticDecibelsSlider_loadCvars (entity me)
void	XonoticDecibelsSlider_saveCvars (entity me)
string	XonoticDecibelsSlider_valueToText (entity me, float v)

Variables
float	autocvar_menu_snd_sliderscale
bool	autocvar_test_XonoticDecibelsSlider = false

Function Documentation

fromDecibelOfSquare()

float fromDecibelOfSquare	(	float	f,
		float	mi )

Definition at line 17 of file slider_decibels.qc.

{
    float A = log(10) / 20; // note: about 0.115; inverse: about 8.686
    if(mi != 0)
    {
        // linear scale part
        float t = 1 / A + mi;
        float u = exp(1 + A * mi);
        if(f <= t)
            return u * ((f - mi) / (t - mi));
    }
    return exp(A * f);
}

References exp(), and log().

Referenced by TEST(), XonoticDecibelsSlider_loadCvars(), XonoticDecibelsSlider_saveCvars(), and XonoticDecibelsSlider_valueToText().

makeXonoticDecibelsSlider()

entity makeXonoticDecibelsSlider	(	float	theValueMin,
		float	theValueMax,
		float	theValueStep,
		string	theCvar )

Definition at line 38 of file slider_decibels.qc.

{
    return makeXonoticDecibelsSlider_T(theValueMin, theValueMax, theValueStep, theCvar, string_null);
}

References entity(), makeXonoticDecibelsSlider_T(), and string_null.

Referenced by XonoticDecibelsSlider::valueToText().

makeXonoticDecibelsSlider_T()

entity makeXonoticDecibelsSlider_T	(	float	theValueMin,
		float	theValueMax,
		float	theValueStep,
		string	theCvar,
		string	theTooltip )

Definition at line 31 of file slider_decibels.qc.

{
    entity me;
    me = NEW(XonoticDecibelsSlider);
    me.configureXonoticSlider(me, theValueMin, theValueMax, theValueStep, theCvar, theTooltip);
    return me;
}

References entity(), and NEW.

Referenced by makeXonoticDecibelsSlider(), XonoticDecibelsSlider::valueToText(), and XonoticAudioSettingsTab_fill().

TEST()

TEST	(	XonoticDecibelsSlider	,
		SoundTest	)

Definition at line 86 of file slider_decibels.qc.

{
    if (!autocvar_test_XonoticDecibelsSlider) { SUCCEED(); return; }
    for (int i = -400; i < 0; ++i)
    {
        float db = i * 0.1;
        float v = fromDecibelOfSquare(db, -40);
        float dbv = toDecibelOfSquare(v, -40);
        float d = dbv - db;
        LOG_INFOF("%f -> %f -> %f (diff: %f)", db, v, dbv, d);
        EXPECT_LT(fabs(d), 0.02);
    }
    SUCCEED();
}

References autocvar_test_XonoticDecibelsSlider, EXPECT_LT, fabs(), fromDecibelOfSquare(), LOG_INFOF, SUCCEED, and toDecibelOfSquare().

toDecibelOfSquare()

float toDecibelOfSquare	(	float	f,
		float	mi )

Definition at line 3 of file slider_decibels.qc.

{
    float A = log(10) / 20; // note: about 0.115; inverse: about 8.686
    if(mi != 0)
    {
        // linear scale part
        float t = 1 / A + mi;
        float u = exp(1 + A * mi);
        if(f <= u)
            return mi + (t - mi) * (f / u);
    }
    return log(f) / A;
}

References exp(), and log().

Referenced by TEST(), XonoticDecibelsSlider_loadCvars(), and XonoticDecibelsSlider_valueToText().

XonoticDecibelsSlider_loadCvars()

void XonoticDecibelsSlider_loadCvars

(

entity

me

)

Definition at line 42 of file slider_decibels.qc.

{
    float v;
 
    if (!me.controlledCvar)
        return;
 
    v = cvar(me.controlledCvar);
 
    // snapping
    if(v > fromDecibelOfSquare(me.valueMax - 0.5 * me.valueStep, me.valueMin))
        Slider_setValue(me, me.valueMax, false);
    else
        Slider_setValue(me, me.valueStep * floor(0.5 + toDecibelOfSquare(v, me.valueMin) / me.valueStep), false);
}

References cvar(), entity(), floor(), fromDecibelOfSquare(), Slider_setValue(), and toDecibelOfSquare().

XonoticDecibelsSlider_saveCvars()

void XonoticDecibelsSlider_saveCvars

(

entity

me

)

Definition at line 57 of file slider_decibels.qc.

{
    if (!me.controlledCvar)
        return;
 
    if(me.value > me.valueMax - 0.5 * me.valueStep)
        cvar_set(me.controlledCvar, ftos(fromDecibelOfSquare(me.valueMax, me.valueMin)));
    else
        cvar_set(me.controlledCvar, ftos(fromDecibelOfSquare(me.value, me.valueMin)));
}

References cvar_set(), entity(), fromDecibelOfSquare(), and ftos().

XonoticDecibelsSlider_valueToText()

string XonoticDecibelsSlider_valueToText	(	entity	me,
		float	v )

Definition at line 69 of file slider_decibels.qc.

{
    if(v > me.valueMax - 0.5 * me.valueStep)
        return CTX(_("VOL^MAX"));
    else if(v <= me.valueMin)
        return CTX(_("VOL^OFF"));
    else if(autocvar_menu_snd_sliderscale == 3) // fake percent scale
        return ftos_decimals_percentage((v - me.valueMin) / (me.valueMax - me.valueMin), 0);
    else if(autocvar_menu_snd_sliderscale == 2) // 0..10 scale
        return sprintf("%.1f", (v - me.valueMin) / (me.valueMax - me.valueMin) * 10);
    else if(autocvar_menu_snd_sliderscale == 1) // real percent scale
        return ftos_decimals_percentage(fromDecibelOfSquare(v, me.valueMin), 2);
    else // decibel scale
        return sprintf(_("%s dB"), ftos_decimals(toDecibelOfSquare(fromDecibelOfSquare(v, me.valueMin), 0), me.valueDigits));
}

References autocvar_menu_snd_sliderscale, CTX(), entity(), fromDecibelOfSquare(), ftos_decimals(), ftos_decimals_percentage(), and toDecibelOfSquare().

Variable Documentation

autocvar_menu_snd_sliderscale

float autocvar_menu_snd_sliderscale

Definition at line 68 of file slider_decibels.qc.

Referenced by XonoticDecibelsSlider_valueToText().

autocvar_test_XonoticDecibelsSlider

bool autocvar_test_XonoticDecibelsSlider = false

Definition at line 85 of file slider_decibels.qc.

Referenced by TEST().