1 #include "slider_decibels.qh"
2 #ifndef SLIDER_DECIBELS_H
3 #define SLIDER_DECIBELS_H
5 CLASS(XonoticDecibelsSlider, XonoticSlider)
6 METHOD(XonoticDecibelsSlider, loadCvars, void(entity));
7 METHOD(XonoticDecibelsSlider, saveCvars, void(entity));
8 METHOD(XonoticDecibelsSlider, valueToText, string(entity, float));
9 ENDCLASS(XonoticDecibelsSlider)
10 entity makeXonoticDecibelsSlider_T(float, float, float, string, string);
11 entity makeXonoticDecibelsSlider(float, float, float, string);
16 float toDecibelOfSquare(float f, float mi)
18 float A = log(10) / 20; // note: about 0.115; inverse: about 8.686
23 float y = exp(1 + A * mi);
25 return mi + (t - mi) * (f / y);
30 float fromDecibelOfSquare(float f, float mi)
32 float A = log(10) / 20; // note: about 0.115; inverse: about 8.686
37 float y = exp(1 + A * mi);
39 return y * ((f - mi) / (t - mi));
44 entity makeXonoticDecibelsSlider_T(float theValueMin, float theValueMax, float theValueStep, string theCvar, string theTooltip)
47 me = NEW(XonoticDecibelsSlider);
48 me.configureXonoticSlider(me, theValueMin, theValueMax, theValueStep, theCvar, theTooltip);
51 entity makeXonoticDecibelsSlider(float theValueMin, float theValueMax, float theValueStep, string theCvar)
53 return makeXonoticDecibelsSlider_T(theValueMin, theValueMax, theValueStep, theCvar, string_null);
55 void XonoticDecibelsSlider_loadCvars(entity me)
62 v = cvar(me.cvarName);
65 if(v > fromDecibelOfSquare(me.valueMax - 0.5 * me.valueStep, me.valueMin))
66 Slider_setValue_noAnim(me, me.valueMax);
68 Slider_setValue_noAnim(me, me.valueStep * floor(0.5 + toDecibelOfSquare(v, me.valueMin) / me.valueStep));
70 void XonoticDecibelsSlider_saveCvars(entity me)
75 if(me.value > me.valueMax - 0.5 * me.valueStep)
76 cvar_set(me.cvarName, ftos(fromDecibelOfSquare(me.valueMax, me.valueMin)));
78 cvar_set(me.cvarName, ftos(fromDecibelOfSquare(me.value, me.valueMin)));
81 float autocvar_menu_snd_sliderscale;
82 string XonoticDecibelsSlider_valueToText(entity me, float v)
84 if(v > me.valueMax - 0.5 * me.valueStep)
85 return CTX(_("VOL^MAX"));
86 else if(v <= me.valueMin)
87 return CTX(_("VOL^OFF"));
88 else if(autocvar_menu_snd_sliderscale == 3) // fake percent scale
89 return sprintf("%d %%", (v - me.valueMin) / (me.valueMax - me.valueMin) * 100);
90 else if(autocvar_menu_snd_sliderscale == 2) // 0..10 scale
91 return sprintf("%.1f", (v - me.valueMin) / (me.valueMax - me.valueMin) * 10);
92 else if(autocvar_menu_snd_sliderscale == 1) // real percent scale
93 return sprintf("%.2f %%", fromDecibelOfSquare(v, me.valueMin) * 100);
95 return sprintf(_("%s dB"), ftos_decimals(toDecibelOfSquare(fromDecibelOfSquare(v, me.valueMin), 0), me.valueDigits));
98 bool autocvar_test_XonoticDecibelsSlider = false;
99 TEST(XonoticDecibelsSlider, SoundTest)
101 if (!autocvar_test_XonoticDecibelsSlider) { SUCCEED(); return; }
102 for (int i = -400; i < 0; ++i)
105 float v = fromDecibelOfSquare(db, -40);
106 float dbv = toDecibelOfSquare(v, -40);
108 LOG_INFOF("%f -> %f -> %f (diff: %f)\n", db, v, dbv, d);
109 EXPECT_GT(fabs(d), 0.02);