From ca3620f4bcd801624ac2232e6e20d0eec5c424e9 Mon Sep 17 00:00:00 2001
From: kramm <kramm>
Date: Thu, 8 May 2008 15:10:34 +0000
Subject: [PATCH] fixed previous antializer fix
---
lib/pdf/GFXOutputDev.cc | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/lib/pdf/GFXOutputDev.cc b/lib/pdf/GFXOutputDev.cc
index ae26f2b..c88a035 100644
--- a/lib/pdf/GFXOutputDev.cc
+++ b/lib/pdf/GFXOutputDev.cc
@@ -1972,19 +1972,23 @@ unsigned char* antialize(unsigned char*data, int width, int height, int newwidth
double ex = px + fx;
int fromx = (int)px;
int tox = (int)ex;
- int xweight1 = (int)(((fromx+1)-px)*256);
+ int xweight1 = (int)((1-(px-fromx))*256);
int xweight2 = (int)((ex-tox)*256);
double py =0;
for(y=0;y<newheight;y++) {
double ey = py + fy;
int fromy = (int)py;
int toy = (int)ey;
- int yweight1 = (int)(((fromy+1)-py)*256);
+ int yweight1 = (int)((1-(py-fromy))*256);
int yweight2 = (int)((ey-toy)*256);
int a = 0;
int xx,yy;
- for(xx=fromx;xx<tox;xx++)
- for(yy=fromy;yy<toy;yy++) {
+ if(tox>=width)
+ tox = width-1;
+ if(toy>=height)
+ toy = height-1;
+ for(xx=fromx;xx<=tox;xx++)
+ for(yy=fromy;yy<=toy;yy++) {
int b = 1-data[width*yy+xx];
int weight=256;
if(xx==fromx) weight = (weight*xweight1)/256;
--
1.7.10.4