chore: vendor go dependencies

1 files changed, 46 insertions, 0 deletions

diff --git a/vendor/github.com/ebitengine/purego/syscall_windows.go b/vendor/github.com/ebitengine/purego/syscall_windows.go
new file mode 100644
index 0000000..5fbfcab
--- /dev/null
+++ b/vendor/github.com/ebitengine/purego/syscall_windows.go
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
+
+package purego
+
+import (
+	"reflect"
+	"syscall"
+)
+
+var syscall15XABI0 uintptr
+
+func syscall_syscall15X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15 uintptr) (r1, r2, err uintptr) {
+	r1, r2, errno := syscall.Syscall15(fn, 15, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15)
+	return r1, r2, uintptr(errno)
+}
+
+// NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.
+// This is useful when interoperating with Windows code requiring callbacks. The argument is expected to be a
+// function with one uintptr-sized result. The function must not have arguments with size larger than the
+// size of uintptr. Only a limited number of callbacks may be created in a single Go process, and any memory
+// allocated for these callbacks is never released. Between NewCallback and NewCallbackCDecl, at least 1024
+// callbacks can always be created. Although this function is similiar to the darwin version it may act
+// differently.
+func NewCallback(fn interface{}) uintptr {
+	isCDecl := false
+	ty := reflect.TypeOf(fn)
+	for i := 0; i < ty.NumIn(); i++ {
+		in := ty.In(i)
+		if !in.AssignableTo(reflect.TypeOf(CDecl{})) {
+			continue
+		}
+		if i != 0 {
+			panic("purego: CDecl must be the first argument")
+		}
+		isCDecl = true
+	}
+	if isCDecl {
+		return syscall.NewCallbackCDecl(fn)
+	}
+	return syscall.NewCallback(fn)
+}
+
+func loadSymbol(handle uintptr, name string) (uintptr, error) {
+	return syscall.GetProcAddress(syscall.Handle(handle), name)
+}