tree 702ebd34c07c289ce177036c204bd5bf9f8aed31
parent c810c6db101b53154b06f9ef1ff7455aaff16c36
author Nigel Tao <nigeltao@golang.org> 1597327445 +1000
committer Nigel Tao <nigeltao@golang.org> 1597622934 +0000

image/gif: add more writer benchmarks

The two existing benchmarks encode randomized pixels, which isn't very
representative. The two new benchmarks encode a PNG photo as a GIF.

Also rename the benchmarks for consistency.

Also fix the bytes-per-op measure for paletted images, which are 1 (not
4) bytes per pixel.

Also simplify BenchmarkEncodeRandomPaletted (formerly just called
BenchmarkEncode). It doesn't need to generate a random palette (and the
GIF encoder largely doesn't care about the palette's RGBA values).
Use palette.Plan9 instead, a pre-existing 256-element color palette.

Change-Id: I10a6ea4e9590bb0d9f76e8cc0f4a88d43b1d650d
Reviewed-on: https://go-review.googlesource.com/c/go/+/248218
Reviewed-by: David Symonds <dsymonds@golang.org>