mirror of
https://github.com/hajimehoshi/ebiten.git
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4396785829
This reverts commit f7e21983cf
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Reason: test failures (#2102)
Closes #2102
52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
// SPDX-License-Identifier: MIT
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package gl
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import (
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"runtime"
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"strings"
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"unsafe"
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)
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// GoStr takes a null-terminated string returned by OpenGL and constructs a
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// corresponding Go string.
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func GoStr(cstr *uint8) string {
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str := ""
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for {
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if *cstr == 0 {
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break
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}
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str += string(*cstr)
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cstr = (*uint8)(unsafe.Pointer(uintptr(unsafe.Pointer(cstr)) + 1))
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}
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return str
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}
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// Strs takes a list of Go strings (with or without null-termination) and
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// returns their C counterpart.
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//
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// The returned free function must be called once you are done using the strings
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// in order to free the memory.
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//
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// If no strings are provided as a parameter this function will panic.
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func Strs(strs ...string) (cstrs **uint8, free func()) {
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if len(strs) == 0 {
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panic("Strs: expected at least 1 string")
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}
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var pinned []string
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var ptrs []*uint8
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for _, str := range strs {
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if !strings.HasSuffix(str, "\x00") {
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str += "\x00"
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}
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pinned = append(pinned, str)
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ptrs = append(ptrs, Str(str))
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}
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return &ptrs[0], func() {
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runtime.KeepAlive(pinned)
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pinned = nil
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}
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}
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