fixed masked image bug

diff --git a/lib/pdf/GFXOutputDev.cc b/lib/pdf/GFXOutputDev.cc
index 3e956ec..c35cb39 100644 (file)
--- a/lib/pdf/GFXOutputDev.cc
+++ b/lib/pdf/GFXOutputDev.cc
@@ -448,16 +448,18 @@ char* fontconfig_searchForFont(char*name)
            int t;
            int p;
            for(p=0;p<2;p++) {
-               for(t=0;t<set->nfont;t++) {
-                   char*fcfamily=0,*fcstyle=0,*filename=0;
-                   FcBool scalable=FcFalse, outline=FcFalse;
-                   FcPatternGetString(set->fonts[t], "family", 0, (FcChar8**)&fcfamily);
-                   FcPatternGetString(set->fonts[t], "style", 0, (FcChar8**)&fcstyle);
-                   FcPatternGetString(set->fonts[t], "file", 0, (FcChar8**)&filename);
-                   FcPatternGetBool(set->fonts[t], "outline", 0, &outline);
-                   FcPatternGetBool(set->fonts[t], "scalable", 0, &scalable);
-                   if(scalable && outline) {
-                       msg("<trace> %s (%s) -> %s", fcfamily, fcstyle, filename);
+               if(set) {
+                   for(t=0;t<set->nfont;t++) {
+                       char*fcfamily=0,*fcstyle=0,*filename=0;
+                       FcBool scalable=FcFalse, outline=FcFalse;
+                       FcPatternGetString(set->fonts[t], "family", 0, (FcChar8**)&fcfamily);
+                       FcPatternGetString(set->fonts[t], "style", 0, (FcChar8**)&fcstyle);
+                       FcPatternGetString(set->fonts[t], "file", 0, (FcChar8**)&filename);
+                       FcPatternGetBool(set->fonts[t], "outline", 0, &outline);
+                       FcPatternGetBool(set->fonts[t], "scalable", 0, &scalable);
+                       if(scalable && outline) {
+                           msg("<trace> %s (%s) -> %s", fcfamily, fcstyle, filename);
+                       }
                    }
                }
                set =  FcConfigGetFonts(config, FcSetApplication);
@@ -2415,8 +2417,8 @@ void GFXOutputDev::drawGeneralImage(GfxState *state, Object *ref, Stream *str,
          } else {
              msg("<verbose> resampling %dx%d to mask size (%dx%d)", width, height, maskWidth, maskHeight);
              gfxcolor_t*newpic=new gfxcolor_t[maskWidth*maskHeight];
-             double dx = width / maskWidth;
-             double dy = height / maskHeight;
+             double dx = width / (double)maskWidth;
+             double dy = height / (double)maskHeight;
              double yy = 0;
              for(y = 0; y < maskHeight; y++) {
                  double xx = 0;