mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
// Copyright 2020 The Ebiten Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// +build !ebitensinglethread
|
|
// +build darwin freebsd linux windows
|
|
// +build !android
|
|
// +build !ios
|
|
|
|
package glfw
|
|
|
|
import (
|
|
"github.com/hajimehoshi/ebiten/v2/internal/driver"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicscommand"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/thread"
|
|
)
|
|
|
|
func (u *UserInterface) Run(uicontext driver.UIContext) error {
|
|
u.context = uicontext
|
|
|
|
// Initialize the main thread first so the thread is available at u.run (#809).
|
|
u.t = thread.NewOSThread()
|
|
graphicscommand.SetMainThread(u.t)
|
|
|
|
ch := make(chan error, 1)
|
|
go func() {
|
|
defer func() {
|
|
_ = u.t.Call(func() error {
|
|
return thread.BreakLoop
|
|
})
|
|
}()
|
|
|
|
defer close(ch)
|
|
|
|
_ = u.t.Call(func() error {
|
|
if err := u.init(); err != nil {
|
|
ch <- err
|
|
}
|
|
return nil
|
|
})
|
|
|
|
if err := u.loop(); err != nil {
|
|
ch <- err
|
|
}
|
|
}()
|
|
|
|
u.setRunning(true)
|
|
u.t.Loop()
|
|
u.setRunning(false)
|
|
return <-ch
|
|
}
|
|
|
|
// runOnAnotherThreadFromMainThread is called from the main thread, and calls f on a new goroutine (thread).
|
|
// runOnAnotherThreadFromMainThread creates a new nested main thread and runs the run loop.
|
|
// u.t is updated to the new thread until runOnAnotherThreadFromMainThread is called.
|
|
//
|
|
// Inside f, another functions that must be called from the main thread can be called safely.
|
|
func (u *UserInterface) runOnAnotherThreadFromMainThread(f func() error) error {
|
|
// As this function is called from the main thread, u.t should never be accessed and can be updated here.
|
|
t := u.t
|
|
defer func() {
|
|
u.t = t
|
|
graphicscommand.SetMainThread(t)
|
|
}()
|
|
|
|
u.t = thread.NewOSThread()
|
|
graphicscommand.SetMainThread(u.t)
|
|
|
|
var err error
|
|
go func() {
|
|
defer func() {
|
|
_ = u.t.Call(func() error {
|
|
return thread.BreakLoop
|
|
})
|
|
}()
|
|
err = f()
|
|
}()
|
|
u.t.Loop()
|
|
return err
|
|
}
|