mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-25 03:08:54 +01:00
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
// Copyright 2021 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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//go:build ebitencbackend
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// +build ebitencbackend
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package cbackend
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import (
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"io"
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"github.com/hajimehoshi/ebiten/v2/internal/cbackend"
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)
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type Context struct {
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sampleRate int
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channelNum int
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bitDepthInBytes int
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players *players
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}
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func NewContext(sampleRate, channelNum, bitDepthInBytes int) (*Context, chan struct{}, error) {
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c := &Context{
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sampleRate: sampleRate,
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channelNum: channelNum,
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bitDepthInBytes: bitDepthInBytes,
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players: newPlayers(),
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}
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cbackend.OpenAudio(sampleRate, channelNum, c.players.read)
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ready := make(chan struct{})
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close(ready)
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return c, ready, nil
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}
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func (c *Context) NewPlayer(src io.Reader) *Player {
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return newPlayer(c, src)
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}
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func (c *Context) Suspend() error {
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// Do nothing so far.
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return nil
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}
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func (c *Context) Resume() error {
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// Do nothing so far.
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return nil
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}
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func (c *Context) Err() error {
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return nil
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}
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func (c *Context) defaultBufferSize() int {
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return c.sampleRate * c.channelNum * c.bitDepthInBytes / 2 // 0.5[s]
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}
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