[FFmpeg-cvslog] lavfi/nlmeans: reorder memory accesses in get_integral_patch_value

[Clément Bœsch]

ffmpeg | branch: master | Clément Bœsch <u at pkh.me> | Sun May  6 13:31:32 2018 +0200| [de956198a9eca52e7882ca4ad6b9b42ae3163525] | committer: Clément Bœsch

lavfi/nlmeans: reorder memory accesses in get_integral_patch_value

This doesn't seem to make much of a difference but it can't hurt.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=de956198a9eca52e7882ca4ad6b9b42ae3163525
---

 libavfilter/vf_nlmeans.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavfilter/vf_nlmeans.c b/libavfilter/vf_nlmeans.c
index 72a75a6e7a..22d26a12e3 100644
--- a/libavfilter/vf_nlmeans.c
+++ b/libavfilter/vf_nlmeans.c
@@ -131,10 +131,10 @@ static int query_formats(AVFilterContext *ctx)
  */
 static inline int get_integral_patch_value(const uint32_t *ii, int ii_lz_32, int x, int y, int p)
 {
-    const int e = ii[(y + p    ) * ii_lz_32 + (x + p    )];
-    const int d = ii[(y + p    ) * ii_lz_32 + (x - p - 1)];
-    const int b = ii[(y - p - 1) * ii_lz_32 + (x + p    )];
     const int a = ii[(y - p - 1) * ii_lz_32 + (x - p - 1)];
+    const int b = ii[(y - p - 1) * ii_lz_32 + (x + p    )];
+    const int d = ii[(y + p    ) * ii_lz_32 + (x - p - 1)];
+    const int e = ii[(y + p    ) * ii_lz_32 + (x + p    )];
     return e - d - b + a;
 }