mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-14 06:57:27 +01:00
104 lines
2.3 KiB
Go
104 lines
2.3 KiB
Go
// Copyright 2022 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !js
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package graphicscommand
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import (
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"errors"
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"fmt"
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"image"
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"os"
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"path/filepath"
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"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
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)
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func (i *Image) Dump(graphicsDriver graphicsdriver.Graphics, path string, blackbg bool, rect image.Rectangle) (string, error) {
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p, err := availableFilename(path)
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if err != nil {
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return "", err
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}
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path = p
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path = i.dumpName(path)
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f, err := os.Create(path)
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if err != nil {
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return "", err
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}
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defer func() {
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_ = f.Close()
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}()
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if err := i.dumpTo(f, graphicsDriver, blackbg, rect); err != nil {
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return "", err
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}
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return path, nil
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}
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// DumpImages dumps all the current images to the specified directory.
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//
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// This is for testing usage.
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func DumpImages(images []*Image, graphicsDriver graphicsdriver.Graphics, dir string) (string, error) {
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d, err := availableFilename(dir)
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if err != nil {
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return "", err
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}
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dir = d
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if err := os.Mkdir(dir, 0755); err != nil {
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return "", err
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}
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for _, img := range images {
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// Screen image cannot be dumped.
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if img.screen {
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continue
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}
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f, err := os.Create(filepath.Join(dir, img.dumpName("*.png")))
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if err != nil {
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return "", err
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}
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defer func() {
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_ = f.Close()
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}()
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if err := img.dumpTo(f, graphicsDriver, false, image.Rect(0, 0, img.width, img.height)); err != nil {
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return "", err
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}
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}
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return dir, nil
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}
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// availableFilename returns a filename that is valid as a new file or directory.
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func availableFilename(name string) (string, error) {
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ext := filepath.Ext(name)
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base := name[:len(name)-len(ext)]
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for i := 1; ; i++ {
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if _, err := os.Stat(name); err != nil {
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if errors.Is(err, os.ErrNotExist) {
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break
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}
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return "", err
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}
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name = fmt.Sprintf("%s_%d%s", base, i, ext)
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}
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return name, nil
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}
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