reoriented HSV around bit depth rather than steps

shaders/composite.fsh

@@ -5,11 +5,6 @@
 float renderRes = pixelSize;
 
 #define dithering // whether or not to apply dithering
-#define colorMode 0 // hsv/rgb [0 1]
-
-#define hueSteps 4 // the number of hues to use [2 4 8 16 32 64]
-#define satSteps 4 // the number of saturations to use [2 4 8 16 32 64]
-#define valSteps 4 // the number of lightnesses to use [2 4 8 16 32 64] 
 
 uniform sampler2D gcolor;
 uniform float viewWidth, viewHeight;
@@ -137,14 +132,14 @@ void main() {
     vec3 final;
     #ifdef dithering
         #if colorMode == 0
-            vec3 filtered = vec3(dither(color.x, hueSteps), dither(color.y, satSteps), dither(color.z, valSteps)).rgb;
+            vec3 filtered = vec3(dither(color.x, hueMax), dither(color.y, satMax), dither(color.z, valMax)).rgb;
             final = hsv2rgb(filtered);
         #else
             final = vec3(dither(color.r, colormax.x), dither(color.g, colormax.y), dither(color.b, colormax.z));
         #endif
     #else
         #if colorMode == 0
-            vec3 filtered = vec3(lightnessStep(color.x, hueSteps), lightnessStep(color.y, satSteps), lightnessStep(color.z, valSteps)).rgb;
+            vec3 filtered = vec3(lightnessStep(color.x, hueMax), lightnessStep(color.y, satMax), lightnessStep(color.z, valMax)).rgb;
             final = hsv2rgb(filtered);
         #else
             final = vec3(lightnessStep(color.r, colormax.x), lightnessStep(color.g, colormax.y), lightnessStep(color.b, colormax.z)).rgb;

shaders/lang/en_US.lang

@@ -34,9 +34,12 @@ option.monoPalette=Mono Palette
 value.monoPalette.0=Black & White
 value.monoPalette.1=Dot Matrix
 value.monoPalette.2=Paint the Town
-option.hueSteps=Hue Depth
+option.hueBits=Hue Depth
-option.satSteps=Saturation Depth
+suffix.hueBits=-bit
-option.valSteps=Value Depth
+option.satBits=Saturation Depth
+suffix.satBits=-bit
+option.valBits=Value Depth
+suffix.valBits=-bit
 
 screen.SCREEN=Screen
 option.interlacing=Interlacing

shaders/module/color_depth.frag

@@ -1,7 +1,27 @@
 
+#define colorMode 0 // [0 1]
+
+#define hueBits 2 // [1 2 3 4 5 6 7 8]
+#define satBits 2 // [1 2 3 4 5 6 7 8]
+#define valBits 2 // [1 2 3 4 5 6 7 8]
+
 #define colorDepth 6 // [1 3 6 8 12 15 18 24]
 #define monoPalette 0 // [0 1 2]
 
+#if colorMode == 0
+	//	-- HSV --
+
+	float bit_max(int bits) {
+		return pow(2, bits);
+	}
+
+	float hueMax = bit_max(hueBits);
+	float satMax = bit_max(satBits);
+	float valMax = bit_max(valBits);
+
+#else
+	//	-- RGB --
+
 	#if		colorDepth == 1
 		vec3 colormax = vec3(2, 1, 1);
 	#elif	colorDepth == 3
@@ -29,4 +49,5 @@
 		vec3 monoColor = vec3(1, 0, 0);
 	#endif
 
+#endif
 

shaders/shaders.properties

@@ -1,8 +1,8 @@
-sliders=pixelSize colorDepth hueSteps satSteps valSteps vWarp worldRadius
+sliders=pixelSize colorDepth hueBits satBits valBits vWarp worldRadius
 
 #	-- PROFILES --
-profile.DEFAULT=pixelSize=2 colorMode=0 dithering hueSteps=4 satSteps=4 valSteps=4 vWarp=0 !tWarp !hBlur !interlacing
+profile.DEFAULT=pixelSize=2 colorMode=0 dithering hueBits=2 satBits=2 valBits=2 vWarp=0 !tWarp !hBlur !interlacing
-profile.AEON=pixelSize=1 colorMode=0 dithering hueSteps=8 satSteps=4 valSteps=4 vWarp=0 !tWarp !hBlur !interlacing
+profile.AEON=pixelSize=1 colorMode=0 dithering hueBits=3 satBits=2 valBits=2 vWarp=0 !tWarp !hBlur !interlacing
 profile.DOS=pixelSize=4 colorMode=1 dithering colorDepth=3 vWarp=1 !tWarp !hBlur !interlacing
 profile.DOTMATRIX=pixelSize=4 colorMode=1 colorDepth=1 monoPalette=1 dithering vWarp=1 !tWarp !hBlur !interlacing
 profile.OBRADINN=pixelSize=2 colorMode=1 colorDepth=1 monoPalette=0 dithering vWarp=0 !tWarp !hBlur !interlacing
@@ -17,7 +17,7 @@ screen=<profile> <empty> pixelSize <empty> [COLOR] [SCREEN] [CONSOLE] [FX]
 
 #	colors
 screen.COLOR.columns=3
-screen.COLOR=colorMode dithering <empty> colorDepth <empty> monoPalette hueSteps satSteps valSteps
+screen.COLOR=colorMode dithering <empty> colorDepth <empty> monoPalette hueBits satBits valBits
 
 #	screen effects
 screen.SCREEN=interlacing scanlines aberration