X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fgfxutil.c;h=b82a612089960b8fbb5fa3fec3ebca5c2183af6f;hp=cb51780ce37dfdb4b39f0a993010f08a9636e9c5;hb=95432d94ee6d5cd0c1f71c36b78e195f1b96892f;hpb=a6290d5ab0d369d6807bad92d05a4f38560bf111

diff --git a/src/gfxutil.c b/src/gfxutil.c
index cb51780..b82a612 100644
--- a/src/gfxutil.c
+++ b/src/gfxutil.c
@@ -149,20 +149,21 @@ void draw_line(int x0, int y0, int x1, int y1, unsigned short color)
 		int sum = sptr[0] * (rad + 1); \
 		int count = (rad * 2 + 1) << 8; \
 		int midsize = w - rad * 2; \
+		int firstpix = sptr[0]; \
 		int lastpix = sptr[pstep * (w - 1)]; \
 		/* add up the contributions for the -1 pixel */ \
 		for(j=0; j<rad; j++) { \
 			sum += sptr[pstep * j]; \
 		} \
 		/* first part adding sptr[rad] and subtracting sptr[0] */ \
-		for(j=0; j<rad + 1; j++) { \
-			sum += (int)sptr[pstep * rad] - (int)sptr[0]; \
+		for(j=0; j<=rad; j++) { \
+			sum += (int)sptr[pstep * rad] - firstpix; \
 			sptr += pstep; \
 			*dptr = scale * sum / count; \
 			dptr += pstep; \
 		} \
 		/* middle part adding sptr[rad] and subtracting sptr[-(rad+1)] */ \
-		for(j=0; j<midsize - 1; j++) { \
+		for(j=1; j<midsize; j++) { \
 			sum += (int)sptr[pstep * rad] - (int)sptr[-(rad + 1) * pstep]; \
 			sptr += pstep; \
 			*dptr = scale * sum / count; \