X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;ds=sidebyside;f=backend%2Fdvi%2Fmdvi-lib%2Fdviread.c;h=d01432056518ac6ae3518ed3eec5f5705159f02f;hb=ab0edaffd2f1790ec8ac7ac17f90e0a8007b92cd;hp=97b7b844103f961364ad32685e0a6a89091be020;hpb=19a00ed1cd086dcca4b6bfeb84e0b1488b2e3089;p=evince.git

diff --git a/backend/dvi/mdvi-lib/dviread.c b/backend/dvi/mdvi-lib/dviread.c
index 97b7b844..d0143205 100644
--- a/backend/dvi/mdvi-lib/dviread.c
+++ b/backend/dvi/mdvi-lib/dviread.c
@@ -1166,43 +1166,13 @@ static void inline fix_after_horizontal(DviContext *dvi)
 	(a), (b) > 0 ? '+' : '-', \
 	(b) > 0 ? (b) : -(b), (c)
 
-/*
- * Draw rules with some sort of antialias support. Usefult for high-rate
- * scale factors.
- */ 
-
 static void draw_shrink_rule (DviContext *dvi, int x, int y, Uint w, Uint h, int f)
 {		
-	int hs, vs, npixels;
 	Ulong fg, bg;
-	Ulong *pixels;
-	
-	hs = dvi->params.hshrink;
-	vs = dvi->params.vshrink;
+
 	fg = dvi->curr_fg;
 	bg = dvi->curr_bg;
 
-	if (MDVI_ENABLED(dvi, MDVI_PARAM_ANTIALIASED)) {
-		npixels = vs * hs + 1;
-		pixels = get_color_table(&dvi->device, npixels, bg, fg,
-					 dvi->params.gamma, dvi->params.density);
-	
-		if (pixels) {
-		    int color;
-		    
-		    /*  Lines with width 1 should be perfectly visible
-		     *  in shrink about 15. That is the reason of constant
-		     */
-		     
-		    color = (pow (vs / h * hs, 2) + pow (hs / w * vs, 2)) / 225;
-		    if (color < npixels) {
-		        fg = pixels[color];
-    		    } else {	
-			fg = pixels[npixels - 1];
-		    }
-		}
-        }
-
 	mdvi_push_color (dvi, fg, bg);
 	dvi->device.draw_rule(dvi, x, y, w, h, f);
 	mdvi_pop_color (dvi);
@@ -1537,6 +1507,10 @@ int	special(DviContext *dvi, int opcode)
 	Int32	arg;
 	
 	arg = dugetn(dvi, opcode - DVI_XXX1 + 1);
+	if (arg <= 0) {
+		dvierr(dvi, _("malformed special length\n"));
+		return -1;
+	}
 	s = mdvi_malloc(arg + 1);
 	dread(dvi, s, arg);
 	s[arg] = 0;