mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-09-20 13:22:19 +02:00
59 lines
1.5 KiB
Go
59 lines
1.5 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 buffered
|
|
|
|
import (
|
|
"sync"
|
|
)
|
|
|
|
var (
|
|
delayedCommandsFlushable bool
|
|
|
|
// delayedCommands represents a queue for image operations that are ordered before the game starts
|
|
// (BeginFrame). Before the game starts, the package shareable doesn't determine the minimum/maximum texture
|
|
// sizes (#879).
|
|
//
|
|
// TODO: Flush the commands only when necessary (#921).
|
|
delayedCommands []func()
|
|
delayedCommandsM sync.Mutex
|
|
)
|
|
|
|
func makeDelayedCommandFlushable() {
|
|
delayedCommandsM.Lock()
|
|
delayedCommandsFlushable = true
|
|
delayedCommandsM.Unlock()
|
|
}
|
|
|
|
func enqueueDelayedCommand(f func()) {
|
|
delayedCommandsM.Lock()
|
|
delayedCommands = append(delayedCommands, f)
|
|
delayedCommandsM.Unlock()
|
|
}
|
|
|
|
func flushDelayedCommands() bool {
|
|
delayedCommandsM.Lock()
|
|
defer delayedCommandsM.Unlock()
|
|
|
|
if !delayedCommandsFlushable {
|
|
return false
|
|
}
|
|
|
|
for _, c := range delayedCommands {
|
|
c()
|
|
}
|
|
delayedCommands = delayedCommands[:0]
|
|
return true
|
|
}
|