Refactor left edge copying to reduce data copies by 50%.

Also copy 4 pixels so SIMD can use a padded write (movd).

1 files changed, 2 insertions, 0 deletions

diff --git a/src/looprestoration.h b/src/looprestoration.h
index b1dd24a..baa2454 100644
--- a/src/looprestoration.h
+++ b/src/looprestoration.h
@@ -45,11 +45,13 @@ enum LrEdgeFlags {
 //    * w is constrained by the restoration unit size (w <= 256)
 //    * h is constrained by the stripe height (h <= 64)
 typedef void (*wienerfilter_fn)(pixel *dst, ptrdiff_t dst_stride,
+                                const void *left /*const pixel (*left)[4]*/,
                                 const pixel *lpf, ptrdiff_t lpf_stride,
                                 int w, int h, const int16_t filterh[7],
                                 const int16_t filterv[7], enum LrEdgeFlags edges);
 
 typedef void (*selfguided_fn)(pixel *dst, ptrdiff_t dst_stride,
+                              const void *left /*const pixel (*left)[4]*/,
                               const pixel *lpf, ptrdiff_t lpf_stride,
                               int w, int h, int sgr_idx, const int16_t sgr_w[2],
                               const enum LrEdgeFlags edges);