1 files changed, 14 insertions, 16 deletions
diff --git a/system/shaders/GLES/2.0/gles_convolution-4x4.frag b/system/shaders/GLES/2.0/gles_convolution-4x4.frag
index 89e5b8d58d..85bec53d4f 100644
--- a/system/shaders/GLES/2.0/gles_convolution-4x4.frag
+++ b/system/shaders/GLES/2.0/gles_convolution-4x4.frag
@@ -23,14 +23,14 @@
 precision highp float;
 
 uniform sampler2D img;
-uniform vec2      stepxy;
-varying vec2      cord;
-uniform float     m_alpha;
+uniform vec2 stepxy;
+varying vec2 cord;
+uniform float m_alpha;
 uniform sampler2D kernelTex;
 
 vec4 weight(float pos)
 {
-#if (HAS_FLOAT_TEXTURE)
+#if defined(HAS_FLOAT_TEXTURE)
   return texture2D(kernelTex, vec2(pos - 0.5));
 #else
   return texture2D(kernelTex, vec2(pos - 0.5)) * 2.0 - 1.0;
@@ -44,11 +44,10 @@ vec3 pixel(float xpos, float ypos)
 
 vec3 line (float ypos, vec4 xpos, vec4 linetaps)
 {
-  return
-    pixel(xpos.r, ypos) * linetaps.r +
-    pixel(xpos.g, ypos) * linetaps.g +
-    pixel(xpos.b, ypos) * linetaps.b +
-    pixel(xpos.a, ypos) * linetaps.a;
+  return pixel(xpos.r, ypos) * linetaps.r +
+         pixel(xpos.g, ypos) * linetaps.g +
+         pixel(xpos.b, ypos) * linetaps.b +
+         pixel(xpos.a, ypos) * linetaps.a;
 }
 
 void main()
@@ -57,21 +56,20 @@ void main()
   vec2 pos = cord + stepxy * 0.5;
   vec2 f = fract(pos / stepxy);
 
-  vec4 linetaps   = weight(1.0 - f.x);
+  vec4 linetaps = weight(1.0 - f.x);
   vec4 columntaps = weight(1.0 - f.y);
 
-  //make sure all taps added together is exactly 1.0, otherwise some (very small) distortion can occur
+  // make sure all taps added together is exactly 1.0, otherwise some (very small) distortion can occur
   linetaps /= linetaps.r + linetaps.g + linetaps.b + linetaps.a;
   columntaps /= columntaps.r + columntaps.g + columntaps.b + columntaps.a;
 
   vec2 xystart = (-1.5 - f) * stepxy + pos;
   vec4 xpos = vec4(xystart.x, xystart.x + stepxy.x, xystart.x + stepxy.x * 2.0, xystart.x + stepxy.x * 3.0);
 
-  rgb.rgb =
-    line(xystart.y                 , xpos, linetaps) * columntaps.r +
-    line(xystart.y + stepxy.y      , xpos, linetaps) * columntaps.g +
-    line(xystart.y + stepxy.y * 2.0, xpos, linetaps) * columntaps.b +
-    line(xystart.y + stepxy.y * 3.0, xpos, linetaps) * columntaps.a;
+  rgb.rgb = line(xystart.y, xpos, linetaps) * columntaps.r +
+            line(xystart.y + stepxy.y, xpos, linetaps) * columntaps.g +
+            line(xystart.y + stepxy.y * 2.0, xpos, linetaps) * columntaps.b +
+            line(xystart.y + stepxy.y * 3.0, xpos, linetaps) * columntaps.a;
 
   rgb.a = m_alpha;