Pixel drawing.
https://pkg.go.dev/maze.io/x/pixel
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47 lines
534 B
47 lines
534 B
package pixel
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func abs(v int) int {
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if v < 0 {
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return -v
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}
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return v
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}
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func min(a, b int) int {
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if a < b {
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return a
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}
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return b
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}
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func max(a, b int) int {
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if a > b {
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return a
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}
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return b
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}
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func memset(b []byte, v byte) {
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l := len(b)
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if l == 0 {
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return
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}
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b[0] = v
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for i := 1; i < l; i <<= 1 {
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copy(b[i:], b[:i])
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}
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}
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func memsetSlice(b, v []byte) {
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l := len(b)
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i := copy(b, v)
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for ; i < l; i <<= 1 {
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copy(b[i:], b[:i])
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}
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}
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func zeroRange(b []byte, n, l int) {
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for i := n; i < l; i++ {
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b[i] = 0
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}
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}
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