Example usage for com.google.gwt.typedarrays.client Uint8ArrayNative create

Introduction

In this page you can find the example usage for com.google.gwt.typedarrays.client Uint8ArrayNative create.

Prototype

public static Uint8ArrayNative create(short[] array) 

Source Link

Document

Create a Uint8Array instance from an array.

Usage

From source file:com.badlogic.gdx.backends.gwt.GwtGL20.java

License:Apache License

@Override
public void glReadPixels(int x, int y, int width, int height, int format, int type, Buffer pixels) {
    // verify request
    if ((format != WebGLRenderingContext.RGBA) || (type != WebGLRenderingContext.UNSIGNED_BYTE)) {
        throw new GdxRuntimeException(
                "Only format RGBA and type UNSIGNED_BYTE are currently supported for glReadPixels(...).");
    }//w w  w .  j a v a2  s  .  c  o m
    if (!(pixels instanceof ByteBuffer)) {
        throw new GdxRuntimeException(
                "Inputed pixels buffer needs to be of type ByteBuffer for glReadPixels(...).");
    }

    // create new ArrayBufferView (4 bytes per pixel)
    int size = 4 * width * height;
    Uint8Array buffer = Uint8ArrayNative.create(size);

    // read bytes to ArrayBufferView
    gl.readPixels(x, y, width, height, format, type, buffer);

    // copy ArrayBufferView to our pixels array
    ByteBuffer pixelsByte = (ByteBuffer) pixels;
    for (int i = 0; i < size; i++) {
        pixelsByte.put((byte) (buffer.get(i) & 0x000000ff));
    }
}

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From source file:net.npe.gwt.canvas.CanvasCreator.java

License:MIT License

public static Canvas createImageCanvas(ArrayBuffer arrayBuffer, ImageType type) {
    Uint8ArrayNative u8array = Uint8ArrayNative.create(arrayBuffer);
    byte[] buffer = new byte[u8array.length()];
    for (int i = 0; i < buffer.length; i++) {
        buffer[i] = (byte) u8array.get(i);
    }/*from  ww  w  .j av a  2 s  .  c  o m*/
    return createImageCanvas(buffer, type);
}

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From source file:net.npe.image.util.gwt.GwtImageReader.java

License:MIT License

public static PixelImage read(ArrayBuffer arrayBuffer, ImageType type) throws IOException {
    Uint8ArrayNative u8array = Uint8ArrayNative.create(arrayBuffer);
    byte[] buffer = new byte[u8array.length()];
    for (int i = 0; i < buffer.length; i++) {
        buffer[i] = (byte) u8array.get(i);
    }/*from w ww  .  ja  v  a  2 s. co m*/
    return read(buffer, type);
}

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From source file:net.npe.image.util.gwt.GwtImageReader.java

License:MIT License

public static Canvas createCanvas(ArrayBuffer arrayBuffer, ImageType type) throws IOException {
    Uint8ArrayNative u8array = Uint8ArrayNative.create(arrayBuffer);
    byte[] buffer = new byte[u8array.length()];
    for (int i = 0; i < buffer.length; i++) {
        buffer[i] = (byte) u8array.get(i);
    }/*from  ww w  .j av a  2 s. c  o  m*/
    return createCanvas(buffer, type);
}

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From source file:org.cruxframework.crux.core.client.utils.FileUtils.java

License:Apache License

/**
 * Create a new Blob from the dataURI string
 * @param dataURI//from  www .j a v  a 2 s  .c  o  m
 * @return
 */
public static Blob fromDataURI(String dataURI) {
    String[] strings = dataURI.split(",");

    String byteString = getByteString(strings[1], strings[0]);
    String mimeString = strings[0].split(":")[1].split(";")[0];

    int length = byteString.length();
    ArrayBuffer ab = ArrayBufferNative.create(length);
    Uint8Array ia = Uint8ArrayNative.create(ab);

    for (int i = 0; i < length; i++) {
        ia.set(i, StringUtils.charCodeAt(byteString, i));
    }

    return Blob.createIfSupported(ab, mimeString);
}

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From source file:org.oscim.tiling.source.LwHttp.java

License:Open Source License

public void sendRequest(MapTile tile, final UrlTileDataSource dataSource) {

    String url = mTileSource.getTileUrl(tile);

    mHttpRequest = XMLHttpRequest.create();
    mHttpRequest.open("GET", url);
    mHttpRequest.setResponseType(ResponseType.ArrayBuffer);

    mResponseHandler = new ReadyStateChangeHandler() {

        @Override/*  w  ww  . j a v a  2s.  co m*/
        public void onReadyStateChange(XMLHttpRequest xhr) {
            int state = xhr.getReadyState();
            //log.debug(mCurrentUrl + "response " + status + "/" + state);

            if (state == XMLHttpRequest.DONE) {
                if (xhr.getStatus() == 200) {
                    Uint8Array buf = Uint8ArrayNative.create(xhr.getResponseArrayBuffer());
                    dataSource.process(new Buffer(buf));
                } else {
                    dataSource.process(null);
                }
                mHttpRequest = null;
            }
        }
    };

    mHttpRequest.setOnReadyStateChange(mResponseHandler);
    mHttpRequest.send();
}

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From source file:org.parallax3d.parallax.platforms.gwt.GwtGL20.java

License:Open Source License

@Override
public void glReadPixels(int x, int y, int width, int height, int format, int type, Buffer pixels) {
    // verify request
    if ((format != WebGLRenderingContext.RGBA) || (type != WebGLRenderingContext.UNSIGNED_BYTE)) {
        throw new ParallaxRuntimeException(
                "Only format RGBA and type UNSIGNED_BYTE are currently supported for glReadPixels(...).");
    }/*from  www .  j  a  va  2s  .  co m*/
    if (!(pixels instanceof ByteBuffer)) {
        throw new ParallaxRuntimeException(
                "Inputed pixels buffer needs to be of type ByteBuffer for glReadPixels(...).");
    }

    // create new ArrayBufferView (4 bytes per pixel)
    int size = 4 * width * height;
    Uint8Array buffer = Uint8ArrayNative.create(size);

    // read bytes to ArrayBufferView
    gl.readPixels(x, y, width, height, format, type, buffer);

    // copy ArrayBufferView to our pixels array
    ByteBuffer pixelsByte = (ByteBuffer) pixels;
    for (int i = 0; i < size; i++) {
        pixelsByte.put((byte) (buffer.get(i) & 0x000000ff));
    }
}

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From source file:org.uberfire.ext.editor.commons.client.file.exports.ImageFileExport.java

License:Apache License

/**
 * Creates a Blob instance for the raw image data-uri value.
 * @param data The image uri data.//  w w w .j  a  v a2s.c  om
 * @param mimeType The media type for the generated blob.
 */
public static Blob dataImageAsBlob(final String data, final String mimeType) {
    final String byteString = Window.atob(data);
    final ArrayBuffer buffer = ArrayBufferNative.create(byteString.length());
    final Uint8Array ia = Uint8ArrayNative.create(buffer);
    for (int i = 0; i < byteString.length(); i++) {
        ia.set(i, byteString.charAt(i));
    }
    return new BlobImpl(new Object[] { ia }, BlobPropertyBag.create(mimeType));
}

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