fixed bug introduced by the last bugfix

diff --git a/src/polytmpl.h b/src/polytmpl.h
index 2147666..55096ef 100644 (file)
--- a/src/polytmpl.h
+++ b/src/polytmpl.h
@@ -96,7 +96,7 @@ void POLYFILL(struct pvertex *pv, int nverts)
        int winding = 0;
        for(i=0; i<nverts; i++) {
                int next = NEXTIDX(i);
-               winding += ((pv[next].x - pv[i].x) >> 8) * ((pv[next].y + pv[i].y) >> 8);
+               winding += ((pv[next].x - pv[i].x) >> 4) * ((pv[next].y + pv[i].y) >> 4);
        }
 
        /* +1 to avoid crashing due to off-by-one rounding errors in the rasterization */
@@ -143,8 +143,10 @@ void POLYFILL(struct pvertex *pv, int nverts)
                        uint32_t res, tmp;
 
                        if(winding < 0) {
+                               // clockwise
                                edge = y0 > y1 ? left : right;
                        } else {
+                               // counter-clockwise
                                edge = y0 > y1 ? right : left;
                        }
                        res = SCANEDGE(pv + i, pv + next, edge);