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feat(字体渲染): 支持渐变字体渲染
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@@ -27,6 +27,13 @@ func align4(n uint32) uint32 {
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return (n + 3) & ^uint32(3)
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}
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// packedGlyphRune 获取包装字体字符
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// 入参: gid 字形ID
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// 返回: rune 包装字体字符
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func packedGlyphRune(gid uint16) rune {
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return 0xF0000 + rune(gid)
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}
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// calcTableChecksum 计算字体表校验和
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// 入参: data 表数据
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// 返回: uint32 校验和
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