[gegl] pixelise: small oversight

[Massimo Valentini <mvalentini src gnome org>]

commit 8bc1bc53de5e3766e9fc7cfb79e94a3cf0d208fc
Author: Massimo Valentini <mvalentini src gnome org>
Date:   Sat Sep 3 17:21:57 2011 +0200

    pixelise: small oversight
    
    and update its reference image

 operations/common/pixelise.c              |    2 +-
 tests/compositions/reference/pixelise.png |  Bin 5023 -> 5392 bytes
 2 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/operations/common/pixelise.c b/operations/common/pixelise.c
index 21ef88f..664a41d 100644
--- a/operations/common/pixelise.c
+++ b/operations/common/pixelise.c
@@ -87,7 +87,7 @@ calc_block_colors (gfloat* block_colors,
               for (i=px; i<px+xsize; ++i)
                 {
                   for (c=0; c<4; ++c)
-                    col[c] += input[(py*line_width + px)*4 + c];
+                    col[c] += input[(j*line_width + i)*4 + c];
                 }
             }
           for (c=0; c<4; ++c)
diff --git a/tests/compositions/reference/pixelise.png b/tests/compositions/reference/pixelise.png
index 33a9302..09ee594 100644
Binary files a/tests/compositions/reference/pixelise.png and b/tests/compositions/reference/pixelise.png differ