45 lines
1 KiB
Go
45 lines
1 KiB
Go
//go:build !cgo && (darwin || openbsd || freebsd || linux)
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package rl
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import (
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"fmt"
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"runtime"
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"unsafe"
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"github.com/ebitengine/purego"
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"golang.org/x/sys/unix"
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)
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// loadLibrary loads the raylib dll and panics on error
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func loadLibrary() uintptr {
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libname := "raylib.so"
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switch runtime.GOOS {
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case "darwin":
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libname = "raylib.dylib"
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}
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handle, err := purego.Dlopen(libname, purego.RTLD_NOW|purego.RTLD_GLOBAL)
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if err != nil {
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panic(fmt.Errorf("cannot load library %s: %w", libname, err))
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}
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proc, err := purego.Dlsym(handle, "raylib_version")
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if err != nil {
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panic(err)
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}
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version := unix.BytePtrToString(**(***byte)(unsafe.Pointer(&proc)))
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if version != requiredVersion {
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panic(fmt.Errorf("version %s of %s doesn't match the required version %s", version, libname, requiredVersion))
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}
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return uintptr(handle)
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}
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func traceLogCallbackWrapper(fn TraceLogCallbackFun) uintptr {
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return purego.NewCallback(func(logLevel int32, text *byte) uintptr {
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fn(int(logLevel), unix.BytePtrToString(text))
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return 0
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})
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}
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