fix divide by zero error with JINC; hat-tip to NAVras-Z

nedi/shaders/nedi-jinc.slang

@@ -112,7 +112,10 @@ float3 max4(float3 a, float3 b, float3 c, float3 d)
     {
       float4 res;
 
-      res = (x==float4(0.0, 0.0, 0.0, 0.0)) ?  float4(wa*wb)  :  sin(x*wa)*sin(x*wb)/(x*x);
+      res.x = (x.x==0.0) ?  (wa*wb)  :  sin(x.x*wa)*sin(x.x*wb)/(x.x*x.x);
+      res.y = (x.y==0.0) ?  (wa*wb)  :  sin(x.y*wa)*sin(x.y*wb)/(x.y*x.y);
+      res.z = (x.z==0.0) ?  (wa*wb)  :  sin(x.z*wa)*sin(x.z*wb)/(x.z*x.z);
+      res.w = (x.w==0.0) ?  (wa*wb)  :  sin(x.w*wa)*sin(x.w*wb)/(x.w*x.w);
 
       return res;
     }

nnedi3/shaders/jinc2-cshift-luma.slang

@@ -79,7 +79,12 @@ float max4(float a, float b, float c, float d)
 vec4 resampler(vec4 x)
 {
 	vec4 res;
-	res = (x==vec4(0.0, 0.0, 0.0, 0.0)) ?  vec4(wa*wb)  :  sin(x*wa)*sin(x*wb)/(x*x);
+
+   res.x = (x.x==0.0) ?  (wa*wb)  :  sin(x.x*wa)*sin(x.x*wb)/(x.x*x.x);
+   res.y = (x.y==0.0) ?  (wa*wb)  :  sin(x.y*wa)*sin(x.y*wb)/(x.y*x.y);
+   res.z = (x.z==0.0) ?  (wa*wb)  :  sin(x.z*wa)*sin(x.z*wb)/(x.z*x.z);
+   res.w = (x.w==0.0) ?  (wa*wb)  :  sin(x.w*wa)*sin(x.w*wb)/(x.w*x.w);
+      
 	return res;
 }
 

nnedi3/shaders/jinc2-cshift-rgb.slang

@@ -79,7 +79,12 @@ vec3 max4(vec3 a, vec3 b, vec3 c, vec3 d)
 vec4 resampler(vec4 x)
 {
 	vec4 res;
-	res = (x==vec4(0.0, 0.0, 0.0, 0.0)) ?  vec4(wa*wb)  :  sin(x*wa)*sin(x*wb)/(x*x);
+
+   res.x = (x.x==0.0) ?  (wa*wb)  :  sin(x.x*wa)*sin(x.x*wb)/(x.x*x.x);
+   res.y = (x.y==0.0) ?  (wa*wb)  :  sin(x.y*wa)*sin(x.y*wb)/(x.y*x.y);
+   res.z = (x.z==0.0) ?  (wa*wb)  :  sin(x.z*wa)*sin(x.z*wb)/(x.z*x.z);
+   res.w = (x.w==0.0) ?  (wa*wb)  :  sin(x.w*wa)*sin(x.w*wb)/(x.w*x.w);
+      
 	return res;
 }
 

nnedi3/shaders/jinc2-on-passoutput0.slang

@@ -79,7 +79,12 @@ vec3 max4(vec3 a, vec3 b, vec3 c, vec3 d)
 vec4 resampler(vec4 x)
 {
 	vec4 res;
-	res = (x==vec4(0.0, 0.0, 0.0, 0.0)) ?  vec4(wa*wb)  :  sin(x*wa)*sin(x*wb)/(x*x);
+
+   res.x = (x.x==0.0) ?  (wa*wb)  :  sin(x.x*wa)*sin(x.x*wb)/(x.x*x.x);
+   res.y = (x.y==0.0) ?  (wa*wb)  :  sin(x.y*wa)*sin(x.y*wb)/(x.y*x.y);
+   res.z = (x.z==0.0) ?  (wa*wb)  :  sin(x.z*wa)*sin(x.z*wb)/(x.z*x.z);
+   res.w = (x.w==0.0) ?  (wa*wb)  :  sin(x.w*wa)*sin(x.w*wb)/(x.w*x.w);
+   
 	return res;
 }
 

nnedi3/shaders/jinc2-on-passoutput3.slang

@@ -79,7 +79,12 @@ vec3 max4(vec3 a, vec3 b, vec3 c, vec3 d)
 vec4 resampler(vec4 x)
 {
 	vec4 res;
-	res = (x==vec4(0.0, 0.0, 0.0, 0.0)) ?  vec4(wa*wb)  :  sin(x*wa)*sin(x*wb)/(x*x);
+
+   res.x = (x.x==0.0) ?  (wa*wb)  :  sin(x.x*wa)*sin(x.x*wb)/(x.x*x.x);
+   res.y = (x.y==0.0) ?  (wa*wb)  :  sin(x.y*wa)*sin(x.y*wb)/(x.y*x.y);
+   res.z = (x.z==0.0) ?  (wa*wb)  :  sin(x.z*wa)*sin(x.z*wb)/(x.z*x.z);
+   res.w = (x.w==0.0) ?  (wa*wb)  :  sin(x.w*wa)*sin(x.w*wb)/(x.w*x.w);
+
 	return res;
 }
 

windowed/shaders/lanczos16.slang

@@ -40,7 +40,10 @@ vec4 l(vec4 x)
 {
    vec4 res;
 
-   res = (x==vec4(0.0, 0.0, 0.0, 0.0)) ?  vec4(pi*floatpi)  :  sin(x*floatpi)*sin(x*pi)/(x*x);
+   res.x = (x.x==0.0) ?  (pi*floatpi)  :  sin(x.x*floatpi)*sin(x.x*pi)/(x.x*x.x);
+   res.y = (x.y==0.0) ?  (pi*floatpi)  :  sin(x.y*floatpi)*sin(x.y*pi)/(x.y*x.y);
+   res.z = (x.z==0.0) ?  (pi*floatpi)  :  sin(x.z*floatpi)*sin(x.z*pi)/(x.z*x.z);
+   res.w = (x.w==0.0) ?  (pi*floatpi)  :  sin(x.w*floatpi)*sin(x.w*pi)/(x.w*x.w);
 
    return res;
 }

xbr/shaders/super-xbr/custom-jinc2-sharper.slang

@@ -84,7 +84,12 @@ vec3 max4(vec3 a, vec3 b, vec3 c, vec3 d)
 vec4 resampler(vec4 x)
 {
 	vec4 res;
-	res = (x == vec4(0.0, 0.0, 0.0, 0.0)) ?  vec4(wa*wb)  :  sin(x*wa)*sin(x*wb)/(x*x);
+
+   res.x = (x.x==0.0) ?  (wa*wb)  :  sin(x.x*wa)*sin(x.x*wb)/(x.x*x.x);
+   res.y = (x.y==0.0) ?  (wa*wb)  :  sin(x.y*wa)*sin(x.y*wb)/(x.y*x.y);
+   res.z = (x.z==0.0) ?  (wa*wb)  :  sin(x.z*wa)*sin(x.z*wb)/(x.z*x.z);
+   res.w = (x.w==0.0) ?  (wa*wb)  :  sin(x.w*wa)*sin(x.w*wb)/(x.w*x.w);
+      
 	return res;
 }