Update textures_image_kernel.c

examples/textures/textures_image_kernel.c

@@ -1,6 +1,6 @@
 /*******************************************************************************************
 *
-*   raylib [textures] example - Image loading and texture creation
+*   raylib [textures] example - image kernel convolution
 *
 *   Example complexity rating: [★★★★] 4/4
 *
@@ -19,20 +19,14 @@
 
 #include "raylib.h"
 
+//------------------------------------------------------------------------------------
+// Module functions declaration
+//------------------------------------------------------------------------------------
+void NormalizeKernel(float *kernel, int size);
+
 //------------------------------------------------------------------------------------
 // Program main entry point
 //------------------------------------------------------------------------------------
-void NormalizeKernel(float *kernel, int size)
-{
-    float sum = 0.0f;
-    for (int i = 0; i < size; i++) sum += kernel[i]; 
-
-    if (sum != 0.0f)
-    {
-        for (int i = 0; i < size; i++) kernel[i] /= sum; 
-    }
-}
-
 int main(void)
 {
     // Initialization
@@ -47,17 +41,20 @@ int main(void)
     float gaussiankernel[] = {
         1.0f, 2.0f, 1.0f,
         2.0f, 4.0f, 2.0f,
-        1.0f, 2.0f, 1.0f };
+        1.0f, 2.0f, 1.0f
+    };
 
     float sobelkernel[] = {
         1.0f, 0.0f, -1.0f,
         2.0f, 0.0f, -2.0f,
-        1.0f, 0.0f, -1.0f };
+        1.0f, 0.0f, -1.0f
+    };
 
     float sharpenkernel[] = {
         0.0f, -1.0f, 0.0f,
        -1.0f, 5.0f, -1.0f,
-        0.0f, -1.0f, 0.0f };
+        0.0f, -1.0f, 0.0f
+    };
 
     NormalizeKernel(gaussiankernel, 9);
     NormalizeKernel(sharpenkernel, 9);
@@ -132,3 +129,17 @@ int main(void)
 
     return 0;
 }
+
+//------------------------------------------------------------------------------------
+// Module functions definition
+//------------------------------------------------------------------------------------
+static void NormalizeKernel(float *kernel, int size)
+{
+    float sum = 0.0f;
+    for (int i = 0; i < size; i++) sum += kernel[i];
+
+    if (sum != 0.0f)
+    {
+        for (int i = 0; i < size; i++) kernel[i] /= sum;
+    }
+}