57 lines
1.5 KiB
Go
57 lines
1.5 KiB
Go
// Copyright 2020 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 atlas
|
|
|
|
import (
|
|
"runtime"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/restorable"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
|
|
)
|
|
|
|
type Shader struct {
|
|
shader *restorable.Shader
|
|
}
|
|
|
|
func NewShader(program *shaderir.Program) *Shader {
|
|
s := &Shader{
|
|
shader: restorable.NewShader(program),
|
|
}
|
|
runtime.SetFinalizer(s, (*Shader).MarkDisposed)
|
|
return s
|
|
}
|
|
|
|
// MarkDisposed marks the shader as disposed. The actual operation is deferred.
|
|
// MarkDisposed can be called from finalizers.
|
|
//
|
|
// A function from finalizer must not be blocked, but disposing operation can be blocked.
|
|
// Defer this operation until it becomes safe. (#913)
|
|
func (s *Shader) MarkDisposed() {
|
|
deferredM.Lock()
|
|
deferred = append(deferred, func() {
|
|
s.dispose()
|
|
})
|
|
deferredM.Unlock()
|
|
}
|
|
|
|
func (s *Shader) dispose() {
|
|
runtime.SetFinalizer(s, nil)
|
|
if s.shader == nil {
|
|
return
|
|
}
|
|
s.shader.Dispose()
|
|
s.shader = nil
|
|
}
|