mirror of
https://github.com/hajimehoshi/ebiten.git
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65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
// Copyright 2019 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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package buffered
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import (
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"sync"
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)
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type command struct {
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f func()
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}
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var (
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delayedCommandsFlushable bool
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// delayedCommands represents a queue for image operations that are ordered before the game starts
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// (BeginFrame). Before the game starts, the package shareable doesn't determine the minimum/maximum texture
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// sizes (#879).
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//
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// TODO: Flush the commands only when necessary (#921).
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delayedCommands []*command
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delayedCommandsM sync.Mutex
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)
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func makeDelayedCommandFlushable() {
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delayedCommandsM.Lock()
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delayedCommandsFlushable = true
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delayedCommandsM.Unlock()
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}
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func enqueueDelayedCommand(f func()) {
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delayedCommandsM.Lock()
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delayedCommands = append(delayedCommands, &command{
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f: f,
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})
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delayedCommandsM.Unlock()
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}
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func flushDelayedCommands() bool {
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delayedCommandsM.Lock()
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defer delayedCommandsM.Unlock()
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if !delayedCommandsFlushable {
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return false
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}
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for _, c := range delayedCommands {
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c.f()
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}
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delayedCommands = nil
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return true
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}
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