From: kramm <kramm>
Date: Sat, 25 Jun 2005 13:42:09 +0000 (+0000)
Subject: fixed a wraparound bug for negative bitmap coordinates.
X-Git-Tag: release-0-7-0~36
X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=commitdiff_plain;h=3adcd88f3a6583387691da2fe0672d2221873a31

fixed a wraparound bug for negative bitmap coordinates.
---

diff --git a/lib/modules/swfrender.c b/lib/modules/swfrender.c
index 2a5d426..11b0c50 100644
--- a/lib/modules/swfrender.c
+++ b/lib/modules/swfrender.c
@@ -565,7 +565,7 @@ static void fill_bitmap(RGBA*line, int*z, int y, int x1, int x2, MATRIX*m, bitma
 	return;
     }
     det = 20.0/det;
-    
+
     if(!b->width || !b->height) {
         fill_solid(line, z, y, x1, x2, color_red, depth);
         return;
@@ -586,6 +586,8 @@ static void fill_bitmap(RGBA*line, int*z, int y, int x1, int x2, MATRIX*m, bitma
 	    } else {
 		xx %= b->width;
 		yy %= b->height;
+		if(xx<0) xx += b->width;
+		if(yy<0) yy += b->height;
 	    }
 
 	    col = b->data[yy*b->width+xx];