mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
81 lines
1.5 KiB
Go
81 lines
1.5 KiB
Go
// Copyright 2018 The Ebiten Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package glfw
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import (
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"bytes"
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"compress/gzip"
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"io"
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"io/ioutil"
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"os"
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"golang.org/x/sys/windows"
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)
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type dll struct {
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d *windows.LazyDLL
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path string
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}
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func createTempDLL(content io.Reader) (string, error) {
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f, err := ioutil.TempFile("", "glfw.*.dll")
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if err != nil {
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return "", err
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}
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defer f.Close()
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fn := f.Name()
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if _, err := io.Copy(f, content); err != nil {
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return "", err
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}
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return fn, nil
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}
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func loadDLL() (*dll, error) {
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f, err := gzip.NewReader(bytes.NewReader(glfwDLLCompressed))
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if err != nil {
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return nil, err
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}
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defer f.Close()
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fn, err := createTempDLL(f)
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if err != nil {
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return nil, err
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}
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return &dll{
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d: windows.NewLazyDLL(fn),
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path: fn,
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}, nil
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}
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func (d *dll) unload() error {
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if err := windows.FreeLibrary(windows.Handle(d.d.Handle())); err != nil {
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return err
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}
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if err := os.Remove(d.path); err != nil {
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return err
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}
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return nil
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}
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func init() {
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if _, err := loadDLL(); err != nil {
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panic(err)
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}
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}
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