mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-14 15:07:26 +01:00
5976e4bbbc
Before this change, the audio is suspended when the game stops for 1/12[s]. However, as game often stops for more than 1/12[s] especially on mobiles, this implemntation caused some audio glitches. This change fixes this problem by re-implementing suspending/ resumeing audio by detecting the window is active/focused or not.
86 lines
1.6 KiB
Go
86 lines
1.6 KiB
Go
// Copyright 2018 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.
|
|
|
|
package hooks
|
|
|
|
import (
|
|
"sync"
|
|
)
|
|
|
|
var m sync.Mutex
|
|
|
|
var onBeforeUpdateHooks = []func() error{}
|
|
|
|
// AppendHookOnBeforeUpdate appends a hook function that is run before the main update function
|
|
// every frame.
|
|
func AppendHookOnBeforeUpdate(f func() error) {
|
|
m.Lock()
|
|
onBeforeUpdateHooks = append(onBeforeUpdateHooks, f)
|
|
m.Unlock()
|
|
}
|
|
|
|
func RunBeforeUpdateHooks() error {
|
|
m.Lock()
|
|
defer m.Unlock()
|
|
|
|
for _, f := range onBeforeUpdateHooks {
|
|
if err := f(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
var (
|
|
audioSuspended bool
|
|
onSuspendAudio func()
|
|
onResumeAudio func()
|
|
)
|
|
|
|
func OnSuspendAudio(f func()) {
|
|
m.Lock()
|
|
onSuspendAudio = f
|
|
m.Unlock()
|
|
}
|
|
|
|
func OnResumeAudio(f func()) {
|
|
m.Lock()
|
|
onResumeAudio = f
|
|
m.Unlock()
|
|
}
|
|
|
|
func SuspendAudio() {
|
|
m.Lock()
|
|
defer m.Unlock()
|
|
if audioSuspended {
|
|
return
|
|
}
|
|
audioSuspended = true
|
|
if onSuspendAudio != nil {
|
|
onSuspendAudio()
|
|
}
|
|
}
|
|
|
|
func ResumeAudio() {
|
|
m.Lock()
|
|
defer m.Unlock()
|
|
if !audioSuspended {
|
|
return
|
|
}
|
|
audioSuspended = false
|
|
if onResumeAudio != nil {
|
|
onResumeAudio()
|
|
}
|
|
}
|