ebiten/internal/processtest/testdata/issue2390.go

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// Copyright 2022 The Ebitengine 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.
//go:build ignore
// +build ignore
package main
import (
"fmt"
"image"
"image/color"
"log"
"github.com/hajimehoshi/ebiten/v2"
)
type Game struct {
images []*ebiten.Image
imageCreated chan struct{}
}
func (g *Game) Update() error {
if g.imageCreated == nil {
g.imageCreated = make(chan struct{})
go func() {
op := &ebiten.NewImageFromImageOptions{
Unmanaged: true,
}
for i := 0; i < 3; i++ {
i := i
img := image.NewRGBA(image.Rect(0, 0, 512, 512))
for j := 0; j < len(img.Pix)/4; j++ {
img.Pix[4*j] = byte(0x60 * i)
img.Pix[4*j+1] = byte(0x60 * i)
img.Pix[4*j+2] = byte(0x60 * i)
img.Pix[4*j+3] = 0xff
}
g.images = append(g.images, ebiten.NewImageFromImageWithOptions(img, op))
}
close(g.imageCreated)
}()
return nil
}
select {
case <-g.imageCreated:
default:
return nil
}
for i, img := range g.images {
got := img.At(0, 0).(color.RGBA)
want := color.RGBA{byte(0x60 * i), byte(0x60 * i), byte(0x60 * i), 0xff}
if got != want {
panic(fmt.Sprintf("got: %v, want: %v", got, want))
}
}
return ebiten.Termination
}
func (g *Game) Draw(screen *ebiten.Image) {
}
func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int) {
return 640, 480
}
func main() {
if err := ebiten.RunGame(&Game{}); err != nil {
log.Fatal(err)
}
}