RetroArch Pack

system/PPSSPP/shaders/cartoon.vsh

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+attribute vec4 a_position;
+attribute vec2 a_texcoord0;
+uniform vec2 u_texelDelta;
+
+varying vec4 v_texcoord0;
+varying vec4 v_texcoord1;
+varying vec4 v_texcoord2;
+varying vec4 v_texcoord3;
+varying vec4 v_texcoord4;
+varying vec4 v_texcoord5;
+varying vec4 v_texcoord6;
+
+float scaleoffset = 0.8; //edge detection offset
+
+void main()
+{
+  float x = u_texelDelta.x*scaleoffset;
+  float y = u_texelDelta.y*scaleoffset;
+  vec2 dg1 = vec2( x,y);
+  vec2 dg2 = vec2(-x,y);
+  vec2 dx  = vec2(x,0.0);
+  vec2 dy  = vec2(0.0,y);
+  gl_Position = a_position;
+  v_texcoord0=a_texcoord0.xyxy;
+  v_texcoord1.xy = v_texcoord0.xy - dy;
+  v_texcoord2.xy = v_texcoord0.xy + dy;
+  v_texcoord3.xy = v_texcoord0.xy - dx;
+  v_texcoord4.xy = v_texcoord0.xy + dx;
+  v_texcoord5.xy = v_texcoord0.xy - dg1;
+  v_texcoord6.xy = v_texcoord0.xy + dg1;
+  v_texcoord1.zw = v_texcoord0.xy - dg2;
+  v_texcoord2.zw = v_texcoord0.xy + dg2;
+
+}