shader.go (1179B)
1 // Copyright 2020 The Ebiten Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package restorable 16 17 import ( 18 "github.com/hajimehoshi/ebiten/v2/internal/graphicscommand" 19 "github.com/hajimehoshi/ebiten/v2/internal/shaderir" 20 ) 21 22 type Shader struct { 23 shader *graphicscommand.Shader 24 ir *shaderir.Program 25 } 26 27 func NewShader(program *shaderir.Program) *Shader { 28 s := &Shader{ 29 shader: graphicscommand.NewShader(program), 30 ir: program, 31 } 32 theImages.addShader(s) 33 return s 34 } 35 36 func (s *Shader) Dispose() { 37 theImages.removeShader(s) 38 s.shader.Dispose() 39 s.shader = nil 40 s.ir = nil 41 } 42 43 func (s *Shader) restore() { 44 s.shader = graphicscommand.NewShader(s.ir) 45 }