mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 13:07:26 +01:00
73 lines
1.9 KiB
Go
73 lines
1.9 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 restorable
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/hajimehoshi/ebiten/v2/internal/builtinshader"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphics"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicscommand"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
|
|
"github.com/hajimehoshi/ebiten/v2/internal/shaderir"
|
|
)
|
|
|
|
type Shader struct {
|
|
shader *graphicscommand.Shader
|
|
ir *shaderir.Program
|
|
}
|
|
|
|
func NewShader(ir *shaderir.Program) *Shader {
|
|
s := &Shader{
|
|
shader: graphicscommand.NewShader(ir),
|
|
ir: ir,
|
|
}
|
|
theImages.addShader(s)
|
|
return s
|
|
}
|
|
|
|
func (s *Shader) Dispose() {
|
|
theImages.removeShader(s)
|
|
s.shader.Dispose()
|
|
s.shader = nil
|
|
s.ir = nil
|
|
}
|
|
|
|
func (s *Shader) restore() {
|
|
s.shader = graphicscommand.NewShader(s.ir)
|
|
}
|
|
|
|
var (
|
|
NearestFilterShader *Shader
|
|
LinearFilterShader *Shader
|
|
)
|
|
|
|
func init() {
|
|
{
|
|
ir, err := graphics.CompileShader([]byte(builtinshader.Shader(graphicsdriver.FilterNearest, graphicsdriver.AddressUnsafe, false)))
|
|
if err != nil {
|
|
panic(fmt.Sprintf("restorable: compiling the nearest shader failed: %v", err))
|
|
}
|
|
NearestFilterShader = NewShader(ir)
|
|
}
|
|
{
|
|
ir, err := graphics.CompileShader([]byte(builtinshader.Shader(graphicsdriver.FilterLinear, graphicsdriver.AddressUnsafe, false)))
|
|
if err != nil {
|
|
panic(fmt.Sprintf("restorable: compiling the linear shader failed: %v", err))
|
|
}
|
|
LinearFilterShader = NewShader(ir)
|
|
}
|
|
}
|