ebiten/ebitenutil/image.go

52 lines
1.3 KiB
Go

// Copyright 2014 Hajime Hoshi
//
// 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 ebitenutil
import (
"github.com/hajimehoshi/ebiten"
"image"
"image/png"
"os"
)
func NewImageFromFile(path string, filter ebiten.Filter) (*ebiten.Image, image.Image, error) {
file, err := os.Open(path)
if err != nil {
return nil, nil, err
}
defer file.Close()
img, _, err := image.Decode(file)
if err != nil {
return nil, nil, err
}
img2, err := ebiten.NewImageFromImage(img, filter)
if err != nil {
return nil, nil, err
}
return img2, img, err
}
func SaveImageAsPNG(path string, img *ebiten.Image) error {
file, err := os.Create(path)
if err != nil {
return err
}
defer file.Close()
if err := png.Encode(file, img); err != nil {
return err
}
return nil
}