mirror of
https://gitee.com/xiangheng/x_admin.git
synced 2025-12-24 08:12:55 +08:00
39 lines
758 B
Go
39 lines
758 B
Go
package img_util
|
||
|
||
import (
|
||
"bytes"
|
||
"image"
|
||
"image/color"
|
||
"image/gif"
|
||
)
|
||
|
||
func EmptyGif() []byte {
|
||
img := image.NewRGBA(image.Rect(0, 0, 1, 1))
|
||
|
||
// 设置像素颜色为黑色
|
||
img.Set(0, 0, color.Black)
|
||
|
||
// 创建GIF动画
|
||
g := &gif.GIF{
|
||
Image: []*image.Paletted{imageToPaletted(img)},
|
||
Delay: []int{0}, // 延迟时间，单位是10毫秒
|
||
}
|
||
var buffer bytes.Buffer
|
||
|
||
// 编码GIF到缓冲区
|
||
gif.EncodeAll(&buffer, g)
|
||
return buffer.Bytes()
|
||
}
|
||
|
||
// 将image.Image转换为*image.Paletted
|
||
func imageToPaletted(img image.Image) *image.Paletted {
|
||
b := img.Bounds()
|
||
pm := image.NewPaletted(b, color.Palette{color.Black})
|
||
for y := b.Min.Y; y < b.Max.Y; y++ {
|
||
for x := b.Min.X; x < b.Max.X; x++ {
|
||
pm.Set(x, y, img.At(x, y))
|
||
}
|
||
}
|
||
return pm
|
||
}
|