From 9cddb486433bfb3e149df98f2940b25b00b8ed52 Mon Sep 17 00:00:00 2001 From: Rui Ueyama Date: Mon, 23 Jun 2014 10:29:56 +1000 Subject: [PATCH] image/png: remove unnecessary function call paeth(0, x, 0) == x for any uint8 value. LGTM=nigeltao R=golang-codereviews, bradfitz, nigeltao CC=golang-codereviews https://golang.org/cl/105290049 --- src/pkg/image/png/writer.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/pkg/image/png/writer.go b/src/pkg/image/png/writer.go index 629452cbfa..5c232b760a 100644 --- a/src/pkg/image/png/writer.go +++ b/src/pkg/image/png/writer.go @@ -188,7 +188,7 @@ func filter(cr *[nFilter][]byte, pr []byte, bpp int) int { // The Paeth filter. sum = 0 for i := 0; i < bpp; i++ { - cdat4[i] = cdat0[i] - paeth(0, pdat[i], 0) + cdat4[i] = cdat0[i] - pdat[i] sum += abs8(cdat4[i]) } for i := bpp; i < n; i++ { -- 2.48.1