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

Example 51 with RenderScript

use of android.renderscript.RenderScript in project AndroidUtilCode by Blankj.

the class ImageUtils method renderScriptBlur.

/**
 * Return the blur bitmap using render script.
 *
 * @param src     The source of bitmap.
 * @param radius  The radius(0...25).
 * @param recycle True to recycle the source of bitmap, false otherwise.
 * @return the blur bitmap
 */
@RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Bitmap renderScriptBlur(final Bitmap src, @FloatRange(from = 0, to = 25, fromInclusive = false) final float radius, final boolean recycle) {
    RenderScript rs = null;
    Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
    try {
        rs = RenderScript.create(Utils.getApp());
        rs.setMessageHandler(new RenderScript.RSMessageHandler());
        Allocation input = Allocation.createFromBitmap(rs, ret, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
        Allocation output = Allocation.createTyped(rs, input.getType());
        ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        blurScript.setInput(input);
        blurScript.setRadius(radius);
        blurScript.forEach(output);
        output.copyTo(ret);
    } finally {
        if (rs != null) {
            rs.destroy();
        }
    }
    return ret;
}

Example 52 with RenderScript

use of android.renderscript.RenderScript in project Lazy by l123456789jy.

the class BitmapUtil method blur.

/**
 * Apply a blur to a Bitmap
 *
 * @param context    Application context
 * @param sentBitmap Bitmap to be converted
 * @param radius     Desired Radius, 0 < r < 25
 * @return a copy of the image with a blur
 */
@SuppressLint("InlinedApi")
public static Bitmap blur(Context context, Bitmap sentBitmap, int radius) {
    if (radius < 0) {
        radius = 0;
        if (DEBUG) {
        }
    } else if (radius > 25) {
        radius = 25;
        if (DEBUG) {
        }
    }
    if (Build.VERSION.SDK_INT > 16) {
        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);
        return bitmap;
    }
    // Stack Blur v1.0 from
    // http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html
    // 
    // Java Author: Mario Klingemann <mario at quasimondo.com>
    // http://incubator.quasimondo.com
    // created Feburary 29, 2004
    // Android port : Yahel Bouaziz <yahel at kayenko.com>
    // http://www.kayenko.com
    // ported april 5th, 2012
    // This is a compromise between Gaussian Blur and Box blur
    // It creates much better looking blurs than Box Blur, but is
    // 7x faster than my Gaussian Blur implementation.
    // 
    // I called it Stack Blur because this describes best how this
    // filter works internally: it creates a kind of moving stack
    // of colors whilst scanning through the image. Thereby it
    // just has to add one new block of color to the right side
    // of the stack and remove the leftmost color. The remaining
    // colors on the topmost layer of the stack are either added on
    // or reduced by one, depending on if they are on the right or
    // on the left side of the stack.
    // 
    // If you are using this algorithm in your code please add
    // the following line:
    // 
    // Stack Blur Algorithm by Mario Klingemann <mario@quasimondo.com>
    Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
    if (radius < 1) {
        return (null);
    }
    int w = bitmap.getWidth();
    int h = bitmap.getHeight();
    int[] pix = new int[w * h];
    Log.e("pix", w + " " + h + " " + pix.length);
    bitmap.getPixels(pix, 0, w, 0, 0, w, h);
    int wm = w - 1;
    int hm = h - 1;
    int wh = w * h;
    int div = radius + radius + 1;
    int[] r = new int[wh];
    int[] g = new int[wh];
    int[] b = new int[wh];
    int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
    int[] vmin = new int[Math.max(w, h)];
    int divsum = (div + 1) >> 1;
    divsum *= divsum;
    int[] dv = new int[256 * divsum];
    for (i = 0; i < 256 * divsum; i++) {
        dv[i] = (i / divsum);
    }
    yw = yi = 0;
    int[][] stack = new int[div][3];
    int stackpointer;
    int stackstart;
    int[] sir;
    int rbs;
    int r1 = radius + 1;
    int routsum, goutsum, boutsum;
    int rinsum, ginsum, binsum;
    for (y = 0; y < h; y++) {
        rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
        for (i = -radius; i <= radius; i++) {
            p = pix[yi + Math.min(wm, Math.max(i, 0))];
            sir = stack[i + radius];
            sir[0] = (p & 0xff0000) >> 16;
            sir[1] = (p & 0x00ff00) >> 8;
            sir[2] = (p & 0x0000ff);
            rbs = r1 - Math.abs(i);
            rsum += sir[0] * rbs;
            gsum += sir[1] * rbs;
            bsum += sir[2] * rbs;
            if (i > 0) {
                rinsum += sir[0];
                ginsum += sir[1];
                binsum += sir[2];
            } else {
                routsum += sir[0];
                goutsum += sir[1];
                boutsum += sir[2];
            }
        }
        stackpointer = radius;
        for (x = 0; x < w; x++) {
            r[yi] = dv[rsum];
            g[yi] = dv[gsum];
            b[yi] = dv[bsum];
            rsum -= routsum;
            gsum -= goutsum;
            bsum -= boutsum;
            stackstart = stackpointer - radius + div;
            sir = stack[stackstart % div];
            routsum -= sir[0];
            goutsum -= sir[1];
            boutsum -= sir[2];
            if (y == 0) {
                vmin[x] = Math.min(x + radius + 1, wm);
            }
            p = pix[yw + vmin[x]];
            sir[0] = (p & 0xff0000) >> 16;
            sir[1] = (p & 0x00ff00) >> 8;
            sir[2] = (p & 0x0000ff);
            rinsum += sir[0];
            ginsum += sir[1];
            binsum += sir[2];
            rsum += rinsum;
            gsum += ginsum;
            bsum += binsum;
            stackpointer = (stackpointer + 1) % div;
            sir = stack[(stackpointer) % div];
            routsum += sir[0];
            goutsum += sir[1];
            boutsum += sir[2];
            rinsum -= sir[0];
            ginsum -= sir[1];
            binsum -= sir[2];
            yi++;
        }
        yw += w;
    }
    for (x = 0; x < w; x++) {
        rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
        yp = -radius * w;
        for (i = -radius; i <= radius; i++) {
            yi = Math.max(0, yp) + x;
            sir = stack[i + radius];
            sir[0] = r[yi];
            sir[1] = g[yi];
            sir[2] = b[yi];
            rbs = r1 - Math.abs(i);
            rsum += r[yi] * rbs;
            gsum += g[yi] * rbs;
            bsum += b[yi] * rbs;
            if (i > 0) {
                rinsum += sir[0];
                ginsum += sir[1];
                binsum += sir[2];
            } else {
                routsum += sir[0];
                goutsum += sir[1];
                boutsum += sir[2];
            }
            if (i < hm) {
                yp += w;
            }
        }
        yi = x;
        stackpointer = radius;
        for (y = 0; y < h; y++) {
            // Preserve alpha channel: ( 0xff000000 & pix[yi] )
            pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];
            rsum -= routsum;
            gsum -= goutsum;
            bsum -= boutsum;
            stackstart = stackpointer - radius + div;
            sir = stack[stackstart % div];
            routsum -= sir[0];
            goutsum -= sir[1];
            boutsum -= sir[2];
            if (x == 0) {
                vmin[y] = Math.min(y + r1, hm) * w;
            }
            p = x + vmin[y];
            sir[0] = r[p];
            sir[1] = g[p];
            sir[2] = b[p];
            rinsum += sir[0];
            ginsum += sir[1];
            binsum += sir[2];
            rsum += rinsum;
            gsum += ginsum;
            bsum += binsum;
            stackpointer = (stackpointer + 1) % div;
            sir = stack[stackpointer];
            routsum += sir[0];
            goutsum += sir[1];
            boutsum += sir[2];
            rinsum -= sir[0];
            ginsum -= sir[1];
            binsum -= sir[2];
            yi += w;
        }
    }
    Log.e("pix", w + " " + h + " " + pix.length);
    bitmap.setPixels(pix, 0, w, 0, 0, w, h);
    return (bitmap);
}