(gtu-famicom) Style nits, changed div by 2 with mul by 0.5

crt/shaders/gtu-famicom/DAC.slang

@@ -19,7 +19,8 @@ layout(std140, set = 0, binding = 0) uniform UBO
 #define TO_INT3(X) int(floor(((X) * 7.0) + 0.5))
 #define TO_INT4(X) int(floor(((X) * 15.0) + 0.5))
 
-bool InColorp (int p, int color) {
+bool InColorp (int p, int color)
+{
     return ((color + p) % 12 < 6);
 }
 
@@ -31,18 +32,26 @@ float NTSCsignal(int emphasis, int level, int color, int p)
     float attenuation = 0.746;
     const float levels[8] = float[] (   0.350 , 0.518, 0.962, 1.550,
                                         1.094f, 1.506, 1.962, 1.962);
-	if(color > 13)  level = 1;
+    if (color > 13)  
+        level = 1;
+    
     float low  = levels[0 + level];
     float high = levels[4 + level];
-	if(color == 0) low = high;
-	if(color > 12) high = low;
     
+    if (color == 0) 
+        low = high;
+    
+    if (color > 12) 
+        high = low;
 
     float signal = InColorp(p, color) ? high : low;
 
-   if( (bool(emphasis & 1) && InColorp(p, 0))
-   ||  (bool(emphasis & 2) && InColorp(p, 4))
-   ||  (bool(emphasis & 4) && InColorp(p, 8)) ) signal = signal * attenuation;
+    if ((bool(emphasis & 1) && InColorp(p, 0)) ||
+        (bool(emphasis & 2) && InColorp(p, 4)) ||
+        (bool(emphasis & 4) && InColorp(p, 8))) 
+    {
+        signal = signal * attenuation;
+    }
 
 
     signal = (signal - black) / (white - black);

crt/shaders/gtu-famicom/combFilter.slang

@@ -56,7 +56,7 @@ void main()
     if (params.combFilter > 0.0)
     {
         float prev6 = texture(Source, vTexCoord.xy - vec2(6.0 * (params.OutputSize.x * params.SourceSize.x * params.SourceSize.z), 0.0)).r;
-		signal = (current + prev6) / 2.0;
+        signal = (current + prev6) * 0.5;
         float chromaSignal = current - signal;
         I = chromaSignal * cos (colorPhase * (2.0 * pi / 12.0)) * 2.0;
         Q = chromaSignal * sin (colorPhase * (2.0 * pi / 12.0)) * 2.0;

crt/shaders/gtu-famicom/lowPass.slang

@@ -42,10 +42,12 @@ float rand2(vec2 co)
     float c = 43758.5453;
     float dt = dot(co.xy, vec2(12.9898, 78.233));
     float sn = mod(dt, 3.14);
+    
     return fract(sin(sn) * c);
 }
 
-float rand(vec2 co){
+float rand(vec2 co)
+{
     return fract(sin(dot(co.xy, vec2(12.9898, 78.233))) * 43758.5453);
 }
 
@@ -83,5 +85,6 @@ void main()
         signal += (rand(vec2(pos.x * pos.y, params.FrameCount)) - 0.50001) * params.noiseStrength;
         signal += 0.5;
     }
+    
     FragColor = vec4(signal);
 }

crt/shaders/gtu-famicom/scaleX.slang

@@ -30,11 +30,13 @@ layout(std140, set = 0, binding = 0) uniform UBO
 
 #define pi          3.14159265358
 
-float d(float x, float b){
+float d(float x, float b)
+{
     return (pi*b*min(abs(x)+0.5,1.0/b));
 }
 
-float e(float x, float b){
+float e(float x, float b)
+{
     return (pi*b*min(max(abs(x)-0.5,-1.0/b),1.0/b));
 }
 
@@ -46,8 +48,10 @@ layout(location = 0) out vec2 vTexCoord;
 void main()
 {
     gl_Position = global.MVP * Position;
+    
     if (params.cropOverscan_x > 0.0)
         gl_Position.x /= (240.0 / 256.0);
+    
     vTexCoord = TexCoord;
 }
 
@@ -71,8 +75,9 @@ void main()
     
     float i;
 //  for (i=-range;i<range+2.0;i++){
-	for (i=1.0-range;i<range+1.0;i++){
-		X = (offset-(i));
+    for (i = 1.0 - range; i < range + 1.0; i++)
+    {
+        X = offset - i;
         c = texture(Source, vec2(vTexCoord.x - X * params.SourceSize.z, vTexCoord.y)).rgb;
         c.x *= ((d(X, Y) + sin(d(X, Y)) - e(X, Y) - sin(e(X, Y))) / (2.0 * pi));
         c.y *= ((d(X, I) + sin(d(X, I)) - e(X, I) - sin(e(X, I))) / (2.0 * pi));

crt/shaders/gtu-famicom/scaleY.slang

@@ -56,6 +56,7 @@ float normalGaussIntegral(float x)
     float a3 = 0.9372980;
     float p = 0.3326700;
     float t = 1.0 / (1.0 + p*abs(x));
+    
     return (0.5-normalGauss(x) * (t*(a1 + t*(a2 + a3*t))))*sign(x);
 }
 
@@ -65,10 +66,11 @@ vec3 scanlines( float x , vec3 c){
     float rrr = 0.5 * (params.SourceSize.y * params.OutputSize.w);
     float x1 = (x + rrr)*temp;
     float x2 = (x - rrr)*temp;
-	c.r=(c.r*(normalGaussIntegral(x1)-normalGaussIntegral(x2)));
-	c.g=(c.g*(normalGaussIntegral(x1)-normalGaussIntegral(x2)));
-	c.b=(c.b*(normalGaussIntegral(x1)-normalGaussIntegral(x2)));
-	c*=(params.OutputSize.y * params.SourceSize.w);
+    c.r = c.r*(normalGaussIntegral(x1) - normalGaussIntegral(x2));
+    c.g = c.g*(normalGaussIntegral(x1) - normalGaussIntegral(x2));
+    c.b = c.b*(normalGaussIntegral(x1) - normalGaussIntegral(x2));
+    c *= params.OutputSize.y * params.SourceSize.w;
+
     return c;
 }
 
@@ -82,6 +84,7 @@ void main()
     gl_Position = global.MVP * Position;
     if (params.cropOverscan_y > 0.0)
         gl_Position.y /= (224.0 / 240.0);
+    
     vTexCoord = TexCoord;
 }
 
@@ -102,14 +105,15 @@ void main()
 //  for (i=-range;i<range+2.0;i++){
 
     if (params.noScanlines > 0.0)
-      for (i=1.0-range;i<range+1.0;i++)
+        for (i = 1.0-range; i < range + 1.0; ++i)
             tempColor += VAL(i);
     else
-      for (i=1.0-range;i<range+1.0;i++)
+        for (i = 1.0 - range; i < range + 1.0; ++i)
             tempColor += VAL_scanlines(i);
 
     tempColor -= vec3(params.blackLevel);
     tempColor *= (params.contrast / vec3(1.0 - params.blackLevel));
     tempColor = pow(tempColor, vec3(params.gamma));
+    
     FragColor = vec4(tempColor, 1.0);
 }