mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-27 04:08:53 +01:00
88 lines
2.2 KiB
Go
88 lines
2.2 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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package graphicscommand
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import (
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"archive/zip"
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"bytes"
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"image"
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"syscall/js"
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"github.com/hajimehoshi/ebiten/v2/internal/graphicsdriver"
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)
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func download(buf *bytes.Buffer, mime string, path string) {
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global := js.Global()
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jsData := global.Get("Uint8Array").New(buf.Len())
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js.CopyBytesToJS(jsData, buf.Bytes())
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a := global.Get("document").Call("createElement", "a")
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blob := global.Get("Blob").New(
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[]any{jsData},
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map[string]any{"type": mime},
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)
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a.Set("href", global.Get("URL").Call("createObjectURL", blob))
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a.Set("download", path)
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a.Call("click")
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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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// Screen image cannot be dumped.
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if i.screen {
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return "", nil
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}
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buf := &bytes.Buffer{}
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if err := i.dumpTo(buf, graphicsDriver, blackbg, rect); err != nil {
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return "", err
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}
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download(buf, "image/png", i.dumpName(path))
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return path, nil
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}
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// DumpImages dumps all the specified 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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buf := &bytes.Buffer{}
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zw := zip.NewWriter(buf)
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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 := zw.Create(img.dumpName("*.png"))
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if err != nil {
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return "", err
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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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_ = zw.Close()
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zip := dir + ".zip"
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download(buf, "archive/zip", zip)
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return zip, nil
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}
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