diff --git a/pipi/paint/aline_template.h b/pipi/paint/aline_template.h
index 101be7b..8a56e6a 100644
--- a/pipi/paint/aline_template.h
+++ b/pipi/paint/aline_template.h
@@ -17,114 +17,116 @@
  * aline_template.c: antialiased (Wu) line rendering template
  */
 
-float x1 = s->x1, y1 = s->y1, x2 = s->x2, y2 = s->y2;
-float g, xd, yd, xgap, xend, yend, xf, yf, val1, val2;
-int x, y, ix1, ix2, iy1, iy2;
+    float x1 = s->x1, y1 = s->y1, x2 = s->x2, y2 = s->y2;
+    float g, xd, yd, xgap, xend, yend, xf, yf, val1, val2;
+    int x, y, ix1, ix2, iy1, iy2;
 
-xd = x2 - x1;
-yd = y2 - y1;
+    xd = x2 - x1;
+    yd = y2 - y1;
 
-/* "Horizontal" line (X greater than Y)*/
-if (fabsf(xd) > fabsf(yd)) {
-		if (x1 > x2)
+    /* "Horizontal" line (X greater than Y)*/
+    if (fabsf(xd) > fabsf(yd))
     {
-        float tmp;
-        tmp = x1; x1 = x2; x2 = tmp;
-        tmp = y1; y1 = y2; y2 = tmp;
-        xd = (x2-x1);
-        yd = (y2-y1);
-		}
-		g = yd/xd;
-
-		xend = truncf(x1+0.5);
-		yend = y1 + g*(xend-x1);
-		xgap = fractinvf(x1+0.5);
-		ix1 = (int)xend;
-		iy1 = (int)yend;
-		val1 = fractinvf(yend)*xgap;
-		val2 = fractf(yend)*xgap;
-
-    PLOT(ix1, iy1,   val1);
-    PLOT(ix1, (iy1+1)<y1?(iy1+1):iy1, val2);
-
-		yf = yend+g;
-		xend = truncf(x2+0.5);
-		yend = y2 + g*(xend-x2);
-		xgap = fractinvf(x2-0.5);
-		ix2 = (int)xend;
-		iy2 = (int)yend;
-		val1 = fractinvf(yend)*xgap;
-		val2 = fractf(yend)*xgap;
-
-    PLOT(ix2, iy2,   val1);
-    PLOT(ix2, iy2+1<y2?iy2+1:iy2, val2);
-
-		for (x = (ix1+1); x < ix2; x++)
+        if (x1 > x2)
+        {
+            float tmp;
+            tmp = x1; x1 = x2; x2 = tmp;
+            tmp = y1; y1 = y2; y2 = tmp;
+            xd = (x2-x1);
+            yd = (y2-y1);
+        }
+        g = yd/xd;
+
+        xend = truncf(x1+0.5);
+        yend = y1 + g*(xend-x1);
+        xgap = fractinvf(x1+0.5);
+        ix1 = (int)xend;
+        iy1 = (int)yend;
+        val1 = fractinvf(yend)*xgap;
+        val2 = fractf(yend)*xgap;
+
+        PLOT(ix1, iy1,   val1);
+        PLOT(ix1, (iy1+1)<y1?(iy1+1):iy1, val2);
+
+        yf = yend+g;
+        xend = truncf(x2+0.5);
+        yend = y2 + g*(xend-x2);
+        xgap = fractinvf(x2-0.5);
+        ix2 = (int)xend;
+        iy2 = (int)yend;
+        val1 = fractinvf(yend)*xgap;
+        val2 = fractf(yend)*xgap;
+
+        PLOT(ix2, iy2,   val1);
+        PLOT(ix2, iy2+1<y2?iy2+1:iy2, val2);
+
+        for (x = (ix1+1); x < ix2; x++)
+        {
+            float focus;
+
+            val1 = fractinvf(yf);
+            val2 = fractf(yf);
+            focus = (1.0 - fabsf(val1-val2));
+            val1 += 0.3*focus;
+            val2 += 0.3*focus;
+
+            PLOT(x, yf, val1);
+            PLOT(x, (yf+1)<y1?(yf+1):yf, val2);
+
+            yf = yf + g;
+        }
+    }
+    /* "Vertical" line (Y greater than X)*/
+    else
     {
-        float focus;
-
-        val1 = fractinvf(yf);
-        val2 = fractf(yf);
-        focus = (1.0 - fabsf(val1-val2));
-        val1 += 0.3*focus;
-        val2 += 0.3*focus;
-
-        PLOT(x, yf, val1);
-        PLOT(x, (yf+1)<y1?(yf+1):yf, val2);
-
-        yf = yf + g;
-		}
-}
-/* "Vertical" line (Y greater than X)*/
-else {
-		if (x1 > x2)
-    {
-        float tmp;
-        tmp = x1; x1 = x2; x2 = tmp;
-        tmp = y1; y1 = y2; y2 = tmp;
-        xd = (x2-x1);
-        yd = (y2-y1);
-		}
-
-		g = xd/yd;
-
-		xend = truncf(x1+0.5);
-		yend = y1 + g*(xend-x1);
-		xgap = fractf(x1+0.5);
-		ix1 = (int)xend;
-		iy1 = (int)yend;
-		val1 = fractinvf(yend)*xgap;
-		val2 = fractf(yend)*xgap;
-
-    PLOT(ix1, iy1, val1);
-    PLOT(ix1, (iy1+1)<y1?(iy1+1):iy1, val2);
-
-		xf = xend + g;
-
-		xend = truncf(x2+0.5);
-		yend = y2 + g*(xend-x2);
-		xgap = fractinvf(x2-0.5);
-		ix2 = (int)xend;
-		iy2 = (int)yend;
-		val1 = fractinvf(yend)*xgap;
-		val2 = fractf(yend)*xgap;
-
-    PLOT(ix2, iy2,   val1);
-    PLOT(ix2, (iy2+1)<y2?(iy2+1):iy2, val2);
-
-
-		for (y = (iy1+1); y < iy2; y++)
-    {
-        float focus;
-        int   vx = xf;
-        val1 = fractinvf(xf);
-        val2 = fractf(xf);
-        focus = (1.0 - fabsf(val1-val2));
-        val1 += 0.3*focus;
-        val2 += 0.3*focus;
-        PLOT(vx, y, val1);
-        vx++;
-        PLOT(vx, y, val2);
-        xf = xf + g;
-		}
-}
+        if (x1 > x2)
+        {
+            float tmp;
+            tmp = x1; x1 = x2; x2 = tmp;
+            tmp = y1; y1 = y2; y2 = tmp;
+            xd = (x2-x1);
+            yd = (y2-y1);
+        }
+
+        g = xd/yd;
+
+        xend = truncf(x1+0.5);
+        yend = y1 + g*(xend-x1);
+        xgap = fractf(x1+0.5);
+        ix1 = (int)xend;
+        iy1 = (int)yend;
+        val1 = fractinvf(yend)*xgap;
+        val2 = fractf(yend)*xgap;
+
+        PLOT(ix1, iy1, val1);
+        PLOT(ix1, (iy1+1)<y1?(iy1+1):iy1, val2);
+
+        xf = xend + g;
+
+        xend = truncf(x2+0.5);
+        yend = y2 + g*(xend-x2);
+        xgap = fractinvf(x2-0.5);
+        ix2 = (int)xend;
+        iy2 = (int)yend;
+        val1 = fractinvf(yend)*xgap;
+        val2 = fractf(yend)*xgap;
+
+        PLOT(ix2, iy2,   val1);
+        PLOT(ix2, (iy2+1)<y2?(iy2+1):iy2, val2);
+
+
+        for (y = (iy1+1); y < iy2; y++)
+        {
+            float focus;
+            int   vx = xf;
+            val1 = fractinvf(xf);
+            val2 = fractf(xf);
+            focus = (1.0 - fabsf(val1-val2));
+            val1 += 0.3*focus;
+            val2 += 0.3*focus;
+            PLOT(vx, y, val1);
+            vx++;
+            PLOT(vx, y, val2);
+            xf = xf + g;
+        }
+    }