new file mode 100644
--- /dev/null
+++ b/pmc/sdl.cc
@@ -0,0 +1,76 @@
+/***
+ *
+ * $Id: sdl.cc,v 1.1.1.1 2008-04-28 17:33:22 mbroeker Exp $
+ * $Source: /development/cpp/pmc/sdl.cc,v $
+ *
+ */
+
+#include <SDL/SDL.h>
+
+#define max(a,b) (((a) > (b)) ? (a) : (b))
+#define min(a,b) (((a) < (b)) ? (a) : (b))
+#define abs(a) (((a)<0) ? -(a) : (a))
+#define sign(a) (((a)<0) ? -1 : (a)>0 ? 1 : 0)
+
+void drawLine (SDL_Surface * s, int x1, int y1, int x2, int y2, Uint32 color)
+{
+    int d;
+    int x;
+    int y;
+    int ax;
+    int ay;
+    int sx;
+    int sy;
+    int dx;
+    int dy;
+
+    Uint8 *lineAddr;
+    Sint32 yOffset;
+
+    dx = x2 - x1;
+    ax = abs (dx) << 1;
+    sx = sign (dx);
+
+    dy = y2 - y1;
+    ay = abs (dy) << 1;
+    sy = sign (dy);
+    yOffset = sy * s->pitch;
+
+    x = x1;
+    y = y1;
+
+    lineAddr = ((Uint8 *) s->pixels) + (y * s->pitch);
+    if (ax > ay) {              /* x dominant */
+        d = ay - (ax >> 1);
+        for (;;) {
+            *((Uint16 *) (lineAddr + (x << 1))) = (Uint16) color;
+
+            if (x == x2) {
+                return;
+            }
+            if (d >= 0) {
+                y += sy;
+                lineAddr += yOffset;
+                d -= ax;
+            }
+            x += sx;
+            d += ay;
+        }
+    } else {                    /* y dominant */
+        d = ax - (ay >> 1);
+        for (;;) {
+            *((Uint16 *) (lineAddr + (x << 1))) = (Uint16) color;
+
+            if (y == y2) {
+                return;
+            }
+            if (d >= 0) {
+                x += sx;
+                d -= ay;
+            }
+            y += sy;
+            lineAddr += yOffset;
+            d += ax;
+        }
+    }
+}