From: Pierre Joye <pierre.php@gmail.com>
Date: Mon, 27 May 2013 07:21:41 +0000 (+0200)
Subject: fix #64898imagerotate is broken with bilinear interpolation
X-Git-Tag: php-5.5.0RC3~22
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2f01e06786c6f4b2479fdb728bd26062d07208e0;p=php

fix #64898imagerotate is broken with bilinear interpolation
---

diff --git a/ext/gd/libgd/gd_interpolation.c b/ext/gd/libgd/gd_interpolation.c
index 6c5549eba6..bcd76e9707 100644
--- a/ext/gd/libgd/gd_interpolation.c
+++ b/ext/gd/libgd/gd_interpolation.c
@@ -1830,18 +1830,18 @@ gdImagePtr gdImageRotateBilinear(gdImagePtr src, const float degrees, const int
 				const gdFixed f_w4 = gd_mulfx(f_f, f_g);
 
 				if (n < src_w - 1) {
-					src_offset_x = m + 1;
-					src_offset_y = n;
+					src_offset_x = n + 1;
+					src_offset_y = m;
 				}
 
 				if (m < src_h-1) {
-					src_offset_x = m;
-					src_offset_y = n + 1;
+					src_offset_x = n;
+					src_offset_y = m + 1;
 				}
 
 				if (!((n >= src_w-1) || (m >= src_h-1))) {
-					src_offset_x = m + 1;
-					src_offset_y = n + 1;
+					src_offset_x = n + 1;
+					src_offset_y = m + 1;
 				}
 				{
 					const int pixel1 = src->tpixels[src_offset_y][src_offset_x];