Minor tweaks

src/raylib.h

@@ -1342,7 +1342,7 @@ RLAPI void ImageAlphaClear(Image *image, Color color, float threshold);
 RLAPI void ImageAlphaMask(Image *image, Image alphaMask);                                                // Apply alpha mask to image
 RLAPI void ImageAlphaPremultiply(Image *image);                                                          // Premultiply alpha channel
 RLAPI void ImageBlurGaussian(Image *image, int blurSize);                                                // Apply Gaussian blur using a box blur approximation
-RLAPI void ImageKernelConvolution(Image *image, float *kernel, int kernelSize);                          // Apply Custom Square image convolution kernel
+RLAPI void ImageKernelConvolution(Image *image, const float *kernel, int kernelSize);                    // Apply custom square convolution kernel to image
 RLAPI void ImageResize(Image *image, int newWidth, int newHeight);                                       // Resize image (Bicubic scaling algorithm)
 RLAPI void ImageResizeNN(Image *image, int newWidth,int newHeight);                                      // Resize image (Nearest-Neighbor scaling algorithm)
 RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color fill); // Resize canvas and fill with color

src/rlgl.h

@@ -1406,7 +1406,7 @@ void rlBegin(int mode)
     }
 }
 
-void rlEnd() { glEnd(); }
+void rlEnd(void) { glEnd(); }
 void rlVertex2i(int x, int y) { glVertex2i(x, y); }
 void rlVertex2f(float x, float y) { glVertex2f(x, y); }
 void rlVertex3f(float x, float y, float z) { glVertex3f(x, y, z); }

src/rshapes.c

@@ -126,7 +126,7 @@ Rectangle GetShapesTextureRectangle(void)
 // Draw a pixel
 void DrawPixel(int posX, int posY, Color color)
 {
-  DrawPixelV((Vector2){ (float)posX, (float)posY }, color);
+    DrawPixelV((Vector2){ (float)posX, (float)posY }, color);
 }
 
 // Draw a pixel (Vector version)

src/rtextures.c

@@ -2156,8 +2156,9 @@ void ImageBlurGaussian(Image *image, int blurSize)
     ImageFormat(image, format);
 }
 
-// The kernel matrix is assumed to be square. Only supply the width of the kernel
-void ImageKernelConvolution(Image *image, float* kernel, int kernelSize)
+// Apply custom square convolution kernel to image
+// NOTE: The convolution kernel matrix is expected to be square
+void ImageKernelConvolution(Image *image, const float *kernel, int kernelSize)
 {
     if ((image->data == NULL) || (image->width == 0) || (image->height == 0) || kernel == NULL) return;