* pixels.c: do not return a white pixel when calling getpixel() outside

the image boundaries; instead, return the closest pixel in the image.

git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/libpipi/trunk@2602 92316355-f0b4-4df1-b90c-862c8a59935f

pipi/pixels.c

@@ -49,11 +49,11 @@ int pipi_getpixel(pipi_image_t const *img,
 {
     uint8_t *pixel;
 
-    if(x < 0 || y < 0 || x >= img->width || y >= img->height)
-    {
-        *r = *g = *b = 1.;
-        return -1;
-    }
+    if(x < 0) x = 0;
+    else if(x >= img->width) x = img->width - 1;
+
+    if(y < 0) y = 0;
+    else if(y >= img->height) y = img->height - 1;
 
     pixel = img->pixels + y * img->pitch + x * img->channels;