mirror of
https://github.com/ayflying/p2p.git
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51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package main
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import (
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"image"
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"os"
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"github.com/icza/icox" // 替换为icox库
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"github.com/nfnt/resize"
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)
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func main() {
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// 1. 读取PNG文件
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inputPath := "manifest/images/logo.png" // 输入PNG路径
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outputPath := "manifest/images/favicon.ico" // 输出ICO路径
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pngFile, err := os.Open(inputPath)
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if err != nil {
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panic("无法打开PNG文件: " + err.Error())
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}
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defer pngFile.Close()
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// 2. 解码PNG为image.Image对象
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img, _, err := image.Decode(pngFile)
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if err != nil {
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panic("PNG解码失败: " + err.Error())
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}
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// 3. 定义ICO需要包含的尺寸（常见尺寸）
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sizes := []uint{16, 32, 64, 128} // 可根据需求添加更多尺寸
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var icoImages []image.Image
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// 4. 缩放图像到每个目标尺寸并收集
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for _, size := range sizes {
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// 使用Lanczos3算法缩放（高质量）
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resized := resize.Resize(size, size, img, resize.Lanczos3)
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icoImages = append(icoImages, resized)
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}
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// 5. 编码为ICO并写入文件（关键修改：使用icox.Encode）
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icoFile, err := os.Create(outputPath)
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if err != nil {
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panic("无法创建ICO文件: " + err.Error())
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}
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defer icoFile.Close()
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// icox.Encode直接支持多尺寸切片[]image.Image
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if err := icox.Encode(icoFile, icoImages); err != nil {
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panic("ICO编码失败: " + err.Error())
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}
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}
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