mirror of
https://github.com/hajimehoshi/ebiten.git
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44 lines
994 B
Go
44 lines
994 B
Go
// SPDX-License-Identifier: MIT
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//go:build !darwin && !windows
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package gl
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import (
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"unsafe"
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)
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// #include <stdlib.h>
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import "C"
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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 *byte) string {
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return C.GoString((*C.char)(unsafe.Pointer(cstr)))
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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 **byte, free func()) {
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if len(strs) == 0 {
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panic("gl: expected at least 1 string at Strs")
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}
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css := make([]*byte, 0, len(strs))
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for _, str := range strs {
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cs := C.CString(str)
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css = append(css, (*byte)(unsafe.Pointer(cs)))
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}
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return (**byte)(&css[0]), func() {
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for _, cs := range css {
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C.free(unsafe.Pointer(cs))
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}
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}
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}
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