mirror of
https://github.com/make-42/xyosc
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47 lines
1.6 KiB
Go
47 lines
1.6 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
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package purego
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import (
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"reflect"
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"syscall"
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)
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var syscall15XABI0 uintptr
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func syscall_syscall15X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15 uintptr) (r1, r2, err uintptr) {
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r1, r2, errno := syscall.Syscall15(fn, 15, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15)
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return r1, r2, uintptr(errno)
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}
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// NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.
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// This is useful when interoperating with Windows code requiring callbacks. The argument is expected to be a
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// function with one uintptr-sized result. The function must not have arguments with size larger than the
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// size of uintptr. Only a limited number of callbacks may be created in a single Go process, and any memory
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// allocated for these callbacks is never released. Between NewCallback and NewCallbackCDecl, at least 1024
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// callbacks can always be created. Although this function is similiar to the darwin version it may act
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// differently.
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func NewCallback(fn interface{}) uintptr {
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isCDecl := false
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ty := reflect.TypeOf(fn)
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for i := 0; i < ty.NumIn(); i++ {
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in := ty.In(i)
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if !in.AssignableTo(reflect.TypeOf(CDecl{})) {
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continue
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}
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if i != 0 {
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panic("purego: CDecl must be the first argument")
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}
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isCDecl = true
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}
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if isCDecl {
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return syscall.NewCallbackCDecl(fn)
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}
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return syscall.NewCallback(fn)
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}
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func loadSymbol(handle uintptr, name string) (uintptr, error) {
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return syscall.GetProcAddress(syscall.Handle(handle), name)
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}
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