Examples with Allocation android.renderscript.Allocation used on opensource projects

Example 71 with Allocation

use of android.renderscript.Allocation in project Signal-Android by WhisperSystems.

the class UriGlideRenderer method blur.

@NonNull
private static Bitmap blur(Bitmap bitmap, Context context, float blurRadius) {
    Point previewSize = scaleKeepingAspectRatio(new Point(bitmap.getWidth(), bitmap.getHeight()), PREVIEW_DIMENSION_LIMIT);
    Point blurSize = scaleKeepingAspectRatio(new Point(previewSize.x / 2, previewSize.y / 2), MAX_BLUR_DIMENSION);
    Bitmap small = BitmapUtil.createScaledBitmap(bitmap, blurSize.x, blurSize.y);
    Log.d(TAG, "Bitmap: " + bitmap.getWidth() + "x" + bitmap.getHeight() + ", Blur: " + blurSize.x + "x" + blurSize.y);
    RenderScript rs = RenderScript.create(context);
    Allocation input = Allocation.createFromBitmap(rs, small);
    Allocation output = Allocation.createTyped(rs, input.getType());
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setRadius(blurRadius);
    script.setInput(input);
    script.forEach(output);
    Bitmap blurred = Bitmap.createBitmap(small.getWidth(), small.getHeight(), small.getConfig());
    output.copyTo(blurred);
    return blurred;
}