ebiten/audio/writercontext.go
Hajime Hoshi c42a40a541 audio: Rename context -> writerContext
This is a preparation of a new type of context with io.Readers.
2021-01-07 00:26:28 +09:00

48 lines
1.2 KiB
Go

// Copyright 2019 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 audio
import (
"io"
"sync"
"github.com/hajimehoshi/ebiten/v2/internal/hooks"
)
// writerContext represents a context represented as io.WriteClosers.
// The actual implementation is oto.Context.
type writerContext interface {
NewPlayer() io.WriteCloser
io.Closer
}
var writerContextForTesting writerContext
func newWriterContext(sampleRate int) writerContext {
if writerContextForTesting != nil {
return writerContextForTesting
}
ch := make(chan struct{})
var once sync.Once
hooks.AppendHookOnBeforeUpdate(func() error {
once.Do(func() {
close(ch)
})
return nil
})
return newOtoContext(sampleRate, ch)
}