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Better builtin avatar generator (#17707)

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This PR fixes the builtin avatar generator.

1. The random background color makes some images very dirty. So now we only use white background for avatars.
2. We use left-right mirror avatars to satisfy #14799
3. Fix a small padding error in the algorithm
This commit is contained in:
wxiaoguang
2021-11-20 01:10:41 +08:00
committed by GitHub
parent 38347aa16f
commit a8fd76557b
19 changed files with 417 additions and 376 deletions
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135
modules/avatar/identicon/colors.go Normal file
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// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package identicon
import "image/color"
// DarkColors are dark colors for avatar blocks, they come from image/color/palette.WebSafe, and light colors (0xff) are removed
var DarkColors = []color.Color{
color.RGBA{0x00, 0x00, 0x33, 0xff},
color.RGBA{0x00, 0x00, 0x66, 0xff},
color.RGBA{0x00, 0x00, 0x99, 0xff},
color.RGBA{0x00, 0x00, 0xcc, 0xff},
color.RGBA{0x00, 0x33, 0x00, 0xff},
color.RGBA{0x00, 0x33, 0x33, 0xff},
color.RGBA{0x00, 0x33, 0x66, 0xff},
color.RGBA{0x00, 0x33, 0x99, 0xff},
color.RGBA{0x00, 0x33, 0xcc, 0xff},
color.RGBA{0x00, 0x66, 0x00, 0xff},
color.RGBA{0x00, 0x66, 0x33, 0xff},
color.RGBA{0x00, 0x66, 0x66, 0xff},
color.RGBA{0x00, 0x66, 0x99, 0xff},
color.RGBA{0x00, 0x66, 0xcc, 0xff},
color.RGBA{0x00, 0x99, 0x00, 0xff},
color.RGBA{0x00, 0x99, 0x33, 0xff},
color.RGBA{0x00, 0x99, 0x66, 0xff},
color.RGBA{0x00, 0x99, 0x99, 0xff},
color.RGBA{0x00, 0x99, 0xcc, 0xff},
color.RGBA{0x00, 0xcc, 0x00, 0xff},
color.RGBA{0x00, 0xcc, 0x33, 0xff},
color.RGBA{0x00, 0xcc, 0x66, 0xff},
color.RGBA{0x00, 0xcc, 0x99, 0xff},
color.RGBA{0x00, 0xcc, 0xcc, 0xff},
color.RGBA{0x33, 0x00, 0x00, 0xff},
color.RGBA{0x33, 0x00, 0x33, 0xff},
color.RGBA{0x33, 0x00, 0x66, 0xff},
color.RGBA{0x33, 0x00, 0x99, 0xff},
color.RGBA{0x33, 0x00, 0xcc, 0xff},
color.RGBA{0x33, 0x33, 0x00, 0xff},
color.RGBA{0x33, 0x33, 0x33, 0xff},
color.RGBA{0x33, 0x33, 0x66, 0xff},
color.RGBA{0x33, 0x33, 0x99, 0xff},
color.RGBA{0x33, 0x33, 0xcc, 0xff},
color.RGBA{0x33, 0x66, 0x00, 0xff},
color.RGBA{0x33, 0x66, 0x33, 0xff},
color.RGBA{0x33, 0x66, 0x66, 0xff},
color.RGBA{0x33, 0x66, 0x99, 0xff},
color.RGBA{0x33, 0x66, 0xcc, 0xff},
color.RGBA{0x33, 0x99, 0x00, 0xff},
color.RGBA{0x33, 0x99, 0x33, 0xff},
color.RGBA{0x33, 0x99, 0x66, 0xff},
color.RGBA{0x33, 0x99, 0x99, 0xff},
color.RGBA{0x33, 0x99, 0xcc, 0xff},
color.RGBA{0x33, 0xcc, 0x00, 0xff},
color.RGBA{0x33, 0xcc, 0x33, 0xff},
color.RGBA{0x33, 0xcc, 0x66, 0xff},
color.RGBA{0x33, 0xcc, 0x99, 0xff},
color.RGBA{0x33, 0xcc, 0xcc, 0xff},
color.RGBA{0x66, 0x00, 0x00, 0xff},
color.RGBA{0x66, 0x00, 0x33, 0xff},
color.RGBA{0x66, 0x00, 0x66, 0xff},
color.RGBA{0x66, 0x00, 0x99, 0xff},
color.RGBA{0x66, 0x00, 0xcc, 0xff},
color.RGBA{0x66, 0x33, 0x00, 0xff},
color.RGBA{0x66, 0x33, 0x33, 0xff},
color.RGBA{0x66, 0x33, 0x66, 0xff},
color.RGBA{0x66, 0x33, 0x99, 0xff},
color.RGBA{0x66, 0x33, 0xcc, 0xff},
color.RGBA{0x66, 0x66, 0x00, 0xff},
color.RGBA{0x66, 0x66, 0x33, 0xff},
color.RGBA{0x66, 0x66, 0x66, 0xff},
color.RGBA{0x66, 0x66, 0x99, 0xff},
color.RGBA{0x66, 0x66, 0xcc, 0xff},
color.RGBA{0x66, 0x99, 0x00, 0xff},
color.RGBA{0x66, 0x99, 0x33, 0xff},
color.RGBA{0x66, 0x99, 0x66, 0xff},
color.RGBA{0x66, 0x99, 0x99, 0xff},
color.RGBA{0x66, 0x99, 0xcc, 0xff},
color.RGBA{0x66, 0xcc, 0x00, 0xff},
color.RGBA{0x66, 0xcc, 0x33, 0xff},
color.RGBA{0x66, 0xcc, 0x66, 0xff},
color.RGBA{0x66, 0xcc, 0x99, 0xff},
color.RGBA{0x66, 0xcc, 0xcc, 0xff},
color.RGBA{0x99, 0x00, 0x00, 0xff},
color.RGBA{0x99, 0x00, 0x33, 0xff},
color.RGBA{0x99, 0x00, 0x66, 0xff},
color.RGBA{0x99, 0x00, 0x99, 0xff},
color.RGBA{0x99, 0x00, 0xcc, 0xff},
color.RGBA{0x99, 0x33, 0x00, 0xff},
color.RGBA{0x99, 0x33, 0x33, 0xff},
color.RGBA{0x99, 0x33, 0x66, 0xff},
color.RGBA{0x99, 0x33, 0x99, 0xff},
color.RGBA{0x99, 0x33, 0xcc, 0xff},
color.RGBA{0x99, 0x66, 0x00, 0xff},
color.RGBA{0x99, 0x66, 0x33, 0xff},
color.RGBA{0x99, 0x66, 0x66, 0xff},
color.RGBA{0x99, 0x66, 0x99, 0xff},
color.RGBA{0x99, 0x66, 0xcc, 0xff},
color.RGBA{0x99, 0x99, 0x00, 0xff},
color.RGBA{0x99, 0x99, 0x33, 0xff},
color.RGBA{0x99, 0x99, 0x66, 0xff},
color.RGBA{0x99, 0x99, 0x99, 0xff},
color.RGBA{0x99, 0x99, 0xcc, 0xff},
color.RGBA{0x99, 0xcc, 0x00, 0xff},
color.RGBA{0x99, 0xcc, 0x33, 0xff},
color.RGBA{0x99, 0xcc, 0x66, 0xff},
color.RGBA{0x99, 0xcc, 0x99, 0xff},
color.RGBA{0x99, 0xcc, 0xcc, 0xff},
color.RGBA{0xcc, 0x00, 0x00, 0xff},
color.RGBA{0xcc, 0x00, 0x33, 0xff},
color.RGBA{0xcc, 0x00, 0x66, 0xff},
color.RGBA{0xcc, 0x00, 0x99, 0xff},
color.RGBA{0xcc, 0x00, 0xcc, 0xff},
color.RGBA{0xcc, 0x33, 0x00, 0xff},
color.RGBA{0xcc, 0x33, 0x33, 0xff},
color.RGBA{0xcc, 0x33, 0x66, 0xff},
color.RGBA{0xcc, 0x33, 0x99, 0xff},
color.RGBA{0xcc, 0x33, 0xcc, 0xff},
color.RGBA{0xcc, 0x66, 0x00, 0xff},
color.RGBA{0xcc, 0x66, 0x33, 0xff},
color.RGBA{0xcc, 0x66, 0x66, 0xff},
color.RGBA{0xcc, 0x66, 0x99, 0xff},
color.RGBA{0xcc, 0x66, 0xcc, 0xff},
color.RGBA{0xcc, 0x99, 0x00, 0xff},
color.RGBA{0xcc, 0x99, 0x33, 0xff},
color.RGBA{0xcc, 0x99, 0x66, 0xff},
color.RGBA{0xcc, 0x99, 0x99, 0xff},
color.RGBA{0xcc, 0x99, 0xcc, 0xff},
color.RGBA{0xcc, 0xcc, 0x00, 0xff},
color.RGBA{0xcc, 0xcc, 0x33, 0xff},
color.RGBA{0xcc, 0xcc, 0x66, 0xff},
color.RGBA{0xcc, 0xcc, 0x99, 0xff},
color.RGBA{0xcc, 0xcc, 0xcc, 0xff},
}