Example usage for com.google.gwt.typedarrays.client Uint8Array create

Introduction

In this page you can find the example usage for com.google.gwt.typedarrays.client Uint8Array create.

Prototype

public static final native Uint8Array create(JsArrayInteger data) ;

Source Link

Document

Create a new ArrayBuffer with enough bytes to hold array.length elements of this typed array, then create a typed array view referring to the full buffer.

Usage

From source file:com.googlecode.gwtgl.wrapper.UnsignedByteArray.java

License:Apache License

/**
 * Create a new Uint8Array object of the given length with a new underlying ArrayBuffer large enough to hold length elements of the specific type. Data in the buffer is initialized to 0.
 * //w  w w . j ava2s.co  m
 * @param length
 */
public UnsignedByteArray(int length) {
    super(Uint8Array.create(length));
}

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From source file:com.googlecode.gwtgl.wrapper.UnsignedByteArray.java

License:Apache License

/**
 * Create a new Uint8Array object with a new underlying ArrayBuffer large enough to hold the given data, then copy the passed data into the buffer.
 * /* w ww .j av  a2s .  c o  m*/
 * @param array
 */
public UnsignedByteArray(Uint8Array array) {
    super(Uint8Array.create(array));
}

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From source file:com.googlecode.gwtgl.wrapper.UnsignedByteArray.java

License:Apache License

/**
 * Create a new Uint8Array object with a new underlying ArrayBuffer large enough to hold the given data, then copy the passed data into the buffer.
 * /*w w w  . j  a v  a2s .  c  o m*/
 * @param array
 */
public UnsignedByteArray(int[] array) {
    super(Uint8Array.create(array));
}

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From source file:com.googlecode.gwtgl.wrapper.UnsignedByteArray.java

License:Apache License

/**
 * Create a new Uint8Array object using the passed ArrayBuffer for its storage.
 * /*www  . ja  v a2 s  . c  om*/
 * @param buffer
 */
public UnsignedByteArray(ArrayBuffer buffer) {
    super(Uint8Array.create(buffer));
}

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From source file:forplay.html.HtmlGraphicsGL.java

License:Apache License

/**
 * Try basic GL operations to detect failure cases early.
 * //  w  w  w  . j a  v  a 2 s. co  m
 * @return true if calls succeed, false otherwise.
 */
private boolean tryBasicGlCalls() {
    int err;

    try {
        // test that our Float32 arrays work (a technique found in other WebGL checks)
        Float32Array testFloat32Array = Float32Array.create(new float[] { 0.0f, 1.0f, 2.0f });
        if (testFloat32Array.get(0) != 0.0f || testFloat32Array.get(1) != 1.0f
                || testFloat32Array.get(2) != 2.0f) {
            throw new RuntimeException("Typed Float32Array check failed");
        }

        // test that our Int32 arrays work
        Int32Array testInt32Array = Int32Array.create(new int[] { 0, 1, 2 });
        if (testInt32Array.get(0) != 0 || testInt32Array.get(1) != 1 || testInt32Array.get(2) != 2) {
            throw new RuntimeException("Typed Int32Array check failed");
        }

        // test that our Uint16 arrays work
        Uint16Array testUint16Array = Uint16Array.create(new int[] { 0, 1, 2 });
        if (testUint16Array.get(0) != 0 || testUint16Array.get(1) != 1 || testUint16Array.get(2) != 2) {
            throw new RuntimeException("Typed Uint16Array check failed");
        }

        // test that our Uint8 arrays work
        Uint8Array testUint8Array = Uint8Array.create(new int[] { 0, 1, 2 });
        if (testUint8Array.get(0) != 0 || testUint8Array.get(1) != 1 || testUint8Array.get(2) != 2) {
            throw new RuntimeException("Typed Uint8Array check failed");
        }

        // Perform GL read back test where we paint rgba(1, 1, 1, 1) and then read back that data.
        // (should be 100% opaque white).
        bindFramebuffer();
        gl.clearColor(1, 1, 1, 1);
        err = gl.getError();
        if (err != NO_ERROR) {
            throw new RuntimeException("Read back GL test failed to clear color (error " + err + ")");
        }
        updateLayers();
        Uint8Array pixelData = Uint8Array.create(4);
        gl.readPixels(0, 0, 1, 1, RGBA, UNSIGNED_BYTE, pixelData);
        if (pixelData.get(0) != 255 || pixelData.get(1) != 255 || pixelData.get(2) != 255) {
            throw new RuntimeException("Read back GL test failed to read back correct color");
        }
    } catch (RuntimeException e) {
        ForPlay.log().info("Basic GL check failed: " + e.getMessage());
        return false;
    } catch (Throwable t) {
        ForPlay.log().info("Basic GL check failed with an unknown error: " + t.getMessage());
        return false;
    }

    return true;
}

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From source file:playn.html.HtmlGLContext.java

License:Apache License

private void tryBasicGLCalls() throws RuntimeException {
    // test that our Float32 arrays work (a technique found in other WebGL checks)
    Float32Array testFloat32Array = Float32Array.create(new float[] { 0.0f, 1.0f, 2.0f });
    if (testFloat32Array.get(0) != 0.0f || testFloat32Array.get(1) != 1.0f || testFloat32Array.get(2) != 2.0f) {
        throw new RuntimeException("Typed Float32Array check failed");
    }//  w  ww  . jav a  2s.  c om

    // test that our Int32 arrays work
    Int32Array testInt32Array = Int32Array.create(new int[] { 0, 1, 2 });
    if (testInt32Array.get(0) != 0 || testInt32Array.get(1) != 1 || testInt32Array.get(2) != 2) {
        throw new RuntimeException("Typed Int32Array check failed");
    }

    // test that our Uint16 arrays work
    Uint16Array testUint16Array = Uint16Array.create(new int[] { 0, 1, 2 });
    if (testUint16Array.get(0) != 0 || testUint16Array.get(1) != 1 || testUint16Array.get(2) != 2) {
        throw new RuntimeException("Typed Uint16Array check failed");
    }

    // test that our Uint8 arrays work
    Uint8Array testUint8Array = Uint8Array.create(new int[] { 0, 1, 2 });
    if (testUint8Array.get(0) != 0 || testUint8Array.get(1) != 1 || testUint8Array.get(2) != 2) {
        throw new RuntimeException("Typed Uint8Array check failed");
    }

    // Perform GL read back test where we paint rgba(1, 1, 1, 1) and then read back that data.
    // (should be 100% opaque white).
    bindFramebuffer();
    clear(1, 1, 1, 1);
    int err = glc.getError();
    if (err != NO_ERROR) {
        throw new RuntimeException("Read back GL test failed to clear color (error " + err + ")");
    }
    Uint8Array pixelData = Uint8Array.create(4);
    glc.readPixels(0, 0, 1, 1, RGBA, UNSIGNED_BYTE, pixelData);
    if (pixelData.get(0) != 255 || pixelData.get(1) != 255 || pixelData.get(2) != 255) {
        throw new RuntimeException("Read back GL test failed to read back correct color");
    }
}

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From source file:playn.html.HtmlWebSocket.java

License:Apache License

@Override
public void send(ByteBuffer data) {
    int len = data.limit();
    // TODO(haustein) Sending the view directly does not work for some reason.
    // May be a chrome issue...?
    //  Object trick = data;
    // ArrayBufferView ta = ((HasArrayBufferView) trick).getTypedArray();
    // Int8Array view = Int8Array.create(ta.getBuffer(), ta.getByteOffset(), len)
    // ws.send(view);
    ArrayBuffer buf = ArrayBuffer.create(len);
    Uint8Array view = Uint8Array.create(buf);
    for (int i = 0; i < len; i++) {
        view.set(i, data.get(i));//from  w w w  .  j  a  va 2s.  c  o m
    }
    ws.send(buf);
}

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