fixed previous antializer fix

diff --git a/lib/pdf/GFXOutputDev.cc b/lib/pdf/GFXOutputDev.cc
index ae26f2b..c88a035 100644 (file)
--- a/lib/pdf/GFXOutputDev.cc
+++ b/lib/pdf/GFXOutputDev.cc
@@ -1972,19 +1972,23 @@ unsigned char* antialize(unsigned char*data, int width, int height, int newwidth
        double ex = px + fx;
        int fromx = (int)px;
        int tox = (int)ex;
-       int xweight1 = (int)(((fromx+1)-px)*256);
+       int xweight1 = (int)((1-(px-fromx))*256);
        int xweight2 = (int)((ex-tox)*256);
        double py =0;
        for(y=0;y<newheight;y++) {
            double ey = py + fy;
            int fromy = (int)py;
            int toy = (int)ey;
-           int yweight1 = (int)(((fromy+1)-py)*256);
+           int yweight1 = (int)((1-(py-fromy))*256);
            int yweight2 = (int)((ey-toy)*256);
            int a = 0;
            int xx,yy;
-           for(xx=fromx;xx<tox;xx++)
-           for(yy=fromy;yy<toy;yy++) {
+            if(tox>=width) 
+                tox = width-1;
+            if(toy>=height) 
+                toy = height-1;
+           for(xx=fromx;xx<=tox;xx++)
+           for(yy=fromy;yy<=toy;yy++) {
                int b = 1-data[width*yy+xx];
                int weight=256;
                if(xx==fromx) weight = (weight*xweight1)/256;