Examples with Allocation android.support.v8.renderscript.Allocation used on opensource projects

Example 1 with Allocation

use of android.support.v8.renderscript.Allocation in project AndroidViewHover by daimajia.

the class Blur method apply.

public static Bitmap apply(Context context, Bitmap sentBitmap, int radius) {
    final Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
    final RenderScript rs = RenderScript.create(context);
    final Allocation input = Allocation.createFromBitmap(rs, sentBitmap, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
    final Allocation output = Allocation.createTyped(rs, input.getType());
    final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setRadius(radius);
    script.setInput(input);
    script.forEach(output);
    output.copyTo(bitmap);
    sentBitmap.recycle();
    rs.destroy();
    input.destroy();
    output.destroy();
    script.destroy();
    return bitmap;
}

Example 2 with Allocation

use of android.support.v8.renderscript.Allocation in project Carbon by ZieIony.

the class ShadowGenerator method blurRenderScript.

private static void blurRenderScript(Bitmap bitmap, float radius) {
    Allocation inAllocation = Allocation.createFromBitmap((RenderScript) renderScript, bitmap, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
    Allocation outAllocation = Allocation.createTyped((RenderScript) renderScript, inAllocation.getType());
    ((ScriptIntrinsicBlur) blurShader).setRadius(radius);
    ((ScriptIntrinsicBlur) blurShader).setInput(inAllocation);
    ((ScriptIntrinsicBlur) blurShader).forEach(outAllocation);
    outAllocation.copyTo(bitmap);
}

Example 3 with Allocation

use of android.support.v8.renderscript.Allocation in project RecyclerViewCardGallery by huazhiyuan2008.

the class BlurBitmapUtils method getBlurBitmap.

/**
     * 得到模糊后的bitmap
     * thanks http://wl9739.github.io/2016/07/14/教你一分钟实现模糊效果/
     *
     * @param context
     * @param bitmap
     * @param radius
     * @return
     */
public static Bitmap getBlurBitmap(Context context, Bitmap bitmap, int radius) {
    // 将缩小后的图片做为预渲染的图片。
    Bitmap inputBitmap = Bitmap.createScaledBitmap(bitmap, SCALED_WIDTH, SCALED_HEIGHT, false);
    // 创建一张渲染后的输出图片。
    Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);
    // 创建RenderScript内核对象
    RenderScript rs = RenderScript.create(context);
    // 创建一个模糊效果的RenderScript的工具对象
    ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    // 由于RenderScript并没有使用VM来分配内存,所以需要使用Allocation类来创建和分配内存空间。
    // 创建Allocation对象的时候其实内存是空的,需要使用copyTo()将数据填充进去。
    Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
    Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
    // 设置渲染的模糊程度, 25f是最大模糊度
    blurScript.setRadius(radius);
    // 设置blurScript对象的输入内存
    blurScript.setInput(tmpIn);
    // 将输出数据保存到输出内存中
    blurScript.forEach(tmpOut);
    // 将数据填充到Allocation中
    tmpOut.copyTo(outputBitmap);
    return outputBitmap;
}

Example 4 with Allocation

use of android.support.v8.renderscript.Allocation in project JamsMusicPlayer by psaravan.

the class PicassoBlurTransformer method transform.

@Override
public Bitmap transform(Bitmap bitmap) {
    // Create another bitmap that will hold the results of the filter.
    Bitmap blurredBitmap = Bitmap.createBitmap(bitmap);
    // Allocate memory for Renderscript to work with
    Allocation input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
    Allocation output = Allocation.createTyped(rs, input.getType());
    // Load up an instance of the specific script that we want to use.
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setInput(input);
    // Set the blur radius
    script.setRadius(10);
    // Start the ScriptIntrinisicBlur
    script.forEach(output);
    // Copy the output to the blurred bitmap
    output.copyTo(blurredBitmap);
    return blurredBitmap;
}

Example 5 with Allocation

use of android.support.v8.renderscript.Allocation in project BlurDialogFragment by tvbarthel.

the class RenderScriptBlurHelper method doBlur.

/**
     * blur a given bitmap
     *
     * @param sentBitmap       bitmap to blur
     * @param radius           blur radius
     * @param canReuseInBitmap true if bitmap must be reused without blur
     * @param context          used by RenderScript, can be null if RenderScript disabled
     * @return blurred bitmap
     */
public static Bitmap doBlur(Bitmap sentBitmap, int radius, boolean canReuseInBitmap, Context context) {
    Bitmap bitmap;
    if (canReuseInBitmap) {
        bitmap = sentBitmap;
    } else {
        bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
    }
    if (bitmap.getConfig() == Bitmap.Config.RGB_565) {
        // RenderScript hates RGB_565 so we convert it to ARGB_8888
        // (see http://stackoverflow.com/questions/21563299/
        // defect-of-image-with-scriptintrinsicblur-from-support-library)
        bitmap = convertRGB565toARGB888(bitmap);
    }
    try {
        final RenderScript rs = RenderScript.create(context);
        final Allocation input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
        final Allocation output = Allocation.createTyped(rs, input.getType());
        final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        script.setRadius(radius);
        script.setInput(input);
        script.forEach(output);
        output.copyTo(bitmap);
        return bitmap;
    } catch (RSRuntimeException e) {
        Log.e(TAG, "RenderScript known error : https://code.google.com/p/android/issues/detail?id=71347 " + "continue with the FastBlur approach.");
    }
    return null;
}