diff options
Diffstat (limited to 'draw')
| -rw-r--r-- | draw/draw_scale.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/draw/draw_scale.c b/draw/draw_scale.c index 40a5deff..6bf741ca 100644 --- a/draw/draw_scale.c +++ b/draw/draw_scale.c @@ -16,6 +16,12 @@ and then positioning it at (frac(x),frac(y)). */ #define SINGLE_PIXEL_SPECIALS +/* It's important that we count contributions carefully as they approach the + * edges, otherwise we end up with weights in the outside pixels of + * grid-fitted images that don't sum to 256, and hence get lines across the + * page. See bug #691629. */ +#define WRAP + #ifdef DEBUG_SCALING #ifdef WIN32 #include <windows.h> @@ -357,6 +363,8 @@ add_weight(fz_weights *weights, int j, int i, fz_scale_filter *filter, i = src_w-1; weight = 0; } + if (weight == 0) + return; #endif DBUG(("add_weight[%d][%d] = %d(%g) dist=%g\n",j,i,weight,f,dist)); |