Examples with ArrayBufferView com.google.gwt.typedarrays.shared.ArrayBufferView used on opensource projects

Example 1 with ArrayBufferView

use of com.google.gwt.typedarrays.shared.ArrayBufferView in project libgdx by libgdx.

the class GwtGL20 method glTexImage2D.

@Override
public void glTexImage2D(int target, int level, int internalformat, int width, int height, int border, int format, int type, Buffer pixels) {
    if (pixels == null) {
        gl.texImage2D(target, level, internalformat, width, height, border, format, type, null);
    } else {
        if (pixels.limit() > 1) {
            HasArrayBufferView arrayHolder = (HasArrayBufferView) pixels;
            ArrayBufferView webGLArray = arrayHolder.getTypedArray();
            ArrayBufferView buffer;
            if (pixels instanceof FloatBuffer) {
                buffer = webGLArray;
            } else {
                int remainingBytes = pixels.remaining() * 4;
                int byteOffset = webGLArray.byteOffset() + pixels.position() * 4;
                buffer = Uint8ArrayNative.create(webGLArray.buffer(), byteOffset, remainingBytes);
            }
            gl.texImage2D(target, level, internalformat, width, height, border, format, type, buffer);
        } else {
            Pixmap pixmap = Pixmap.pixmaps.get(((IntBuffer) pixels).get(0));
            // Prefer to use the HTMLImageElement when possible, since reading from the CanvasElement can be lossy.
            if (pixmap.canUseImageElement()) {
                gl.texImage2D(target, level, internalformat, format, type, pixmap.getImageElement());
            } else {
                gl.texImage2D(target, level, internalformat, format, type, pixmap.getCanvasElement());
            }
        }
    }
}

Example 2 with ArrayBufferView

use of com.google.gwt.typedarrays.shared.ArrayBufferView in project libgdx by libgdx.

the class GwtGL20 method glTexSubImage2D.

@Override
public void glTexSubImage2D(int target, int level, int xoffset, int yoffset, int width, int height, int format, int type, Buffer pixels) {
    if (pixels.limit() > 1) {
        HasArrayBufferView arrayHolder = (HasArrayBufferView) pixels;
        ArrayBufferView webGLArray = arrayHolder.getTypedArray();
        ArrayBufferView buffer;
        if (pixels instanceof FloatBuffer) {
            buffer = webGLArray;
        } else {
            int remainingBytes = pixels.remaining() * 4;
            int byteOffset = webGLArray.byteOffset() + pixels.position() * 4;
            buffer = Uint8ArrayNative.create(webGLArray.buffer(), byteOffset, remainingBytes);
        }
        gl.texSubImage2D(target, level, xoffset, yoffset, width, height, format, type, buffer);
    } else {
        Pixmap pixmap = Pixmap.pixmaps.get(((IntBuffer) pixels).get(0));
        gl.texSubImage2D(target, level, xoffset, yoffset, format, type, pixmap.getCanvasElement());
    }
}

Example 3 with ArrayBufferView

use of com.google.gwt.typedarrays.shared.ArrayBufferView in project playn by threerings.

the class HtmlGL20 method getTypedArray.

/**
   * Returns the typed array of the given native buffer.
   * Set byteSize to -1 to use remaining()
   */
protected ArrayBufferView getTypedArray(Buffer buffer, int type, int byteSize) {
    if (!(buffer instanceof HasArrayBufferView)) {
        throw new RuntimeException("Native buffer required " + buffer);
    }
    HasArrayBufferView arrayHolder = (HasArrayBufferView) buffer;
    int bufferElementSize = arrayHolder.getElementSize();
    ArrayBufferView webGLArray = arrayHolder.getTypedArray();
    if (byteSize == -1) {
        byteSize = buffer.remaining() * bufferElementSize;
    }
    if (byteSize == buffer.capacity() * bufferElementSize && type == arrayHolder.getElementType()) {
        return webGLArray;
    }
    int byteOffset = webGLArray.byteOffset() + buffer.position() * bufferElementSize;
    switch(type) {
        case FLOAT:
            return TypedArrays.createFloat32Array(webGLArray.buffer(), byteOffset, byteSize / 4);
        case UNSIGNED_BYTE:
            return TypedArrays.createUint8Array(webGLArray.buffer(), byteOffset, byteSize);
        case UNSIGNED_SHORT:
            return TypedArrays.createUint16Array(webGLArray.buffer(), byteOffset, byteSize / 2);
        case INT:
            return TypedArrays.createInt32Array(webGLArray.buffer(), byteOffset, byteSize / 4);
        case SHORT:
            return TypedArrays.createInt16Array(webGLArray.buffer(), byteOffset, byteSize / 2);
        case BYTE:
            return TypedArrays.createInt8Array(webGLArray.buffer(), byteOffset, byteSize);
        default:
            throw new IllegalArgumentException("Type: " + type);
    }
}

Example 4 with ArrayBufferView

use of com.google.gwt.typedarrays.shared.ArrayBufferView in project playn by threerings.

the class HtmlGL20 method glTexImage2D.

/*
    public void glTexImage2d(int target, int level, int internalformat,
    int format, int type, ImageElement image) {
    // log("setting texImage2d; image: " + image.getSrc());
    gl.texImage2D(target, level, internalformat, format, type, image);
    checkError("texImage2D");
    }

    public void glTexImage2d(int target, int level, int internalformat,
    int format, int type, CanvasElement image) {
    // log("setting texImage2d; image: " + image.getSrc());
    gl.texImage2D(target, level, internalformat, format, type, image);
    checkError("texImage2D");
    }
  */
@Override
public void glTexImage2D(int target, int level, int internalformat, int width, int height, int border, int format, int type, Buffer pixels) {
    ArrayBufferView buffer = (pixels == null) ? null : getTypedArray(pixels, type, -1);
    gl.texImage2D(target, level, internalformat, width, height, border, format, type, buffer);
}