android.renderscript.Allocation类的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中android.renderscript.Allocation类的一些代码示例，展示了Allocation类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Allocation类的具体详情如下：
包路径：android.renderscript.Allocation
类名称：Allocation

Allocation介绍

暂无

代码示例

代码示例来源：origin: CameraKit/blurkit-android

public Bitmap blur(Bitmap src, int radius) {
  final Allocation input = Allocation.createFromBitmap(rs, src);
  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(src);
  return src;
}

代码示例来源：origin: Dimezis/BlurView

@Override
public final void destroy() {
  blurScript.destroy();
  renderScript.destroy();
  if (outAllocation != null) {
    outAllocation.destroy();
  }
}

代码示例来源：origin: stackoverflow.com

//define this only once if blurring multiple times
RenderScript rs = RenderScript.create(context);

(...)
//this will blur the bitmapOriginal with a radius of 8 and save it in bitmapOriginal
final Allocation input = Allocation.createFromBitmap(rs, bitmapOriginal); //use this constructor for best performance, because it uses USAGE_SHARED mode which reuses memory
final Allocation output = Allocation.createTyped(rs, input.getType());
final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
script.setRadius(8f);
script.setInput(input);
script.forEach(output);
output.copyTo(bitmapOriginal);

代码示例来源：origin: HotBitmapGG/bilibili-android-client

/**
   * 图片高斯模糊具体实现方法
   */
  public static Bitmap blur(Context context, Bitmap image, float radius) {
    // 计算图片缩小后的长宽
    int width = Math.round(image.getWidth() * BITMAP_SCALE);
    int height = Math.round(image.getHeight() * BITMAP_SCALE);
    // 将缩小后的图片做为预渲染的图片。
    Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, 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;
  }
}

代码示例来源：origin: bxbxbai/ZhuanLan

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private void blur(Bitmap bkg, View view) {
  long startMs = System.currentTimeMillis();
  float radius = 10;
  Bitmap overlay = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
  Canvas canvas = new Canvas(overlay);
  canvas.translate(-view.getLeft(), -view.getTop());
  canvas.drawBitmap(bkg, 0, 0, null);
  RenderScript rs = RenderScript.create(this);
  Allocation allocation = Allocation.createFromBitmap(rs, overlay);
  ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, allocation.getElement());
  blur.setInput(allocation);
  blur.setRadius(radius);
  blur.forEach(allocation);
  allocation.copyTo(overlay);
  view.setBackground(new BitmapDrawable(getResources(), overlay));
  rs.destroy();
  StopWatch.log(System.currentTimeMillis() - startMs + "ms");
}

代码示例来源：origin: eventtus/photo-editor-android

mBlurInput = Allocation.createFromBitmap(mRenderScript, mBitmapToBlur,
    Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
mBlurOutput = Allocation.createTyped(mRenderScript, mBlurInput.getType());

代码示例来源：origin: stackoverflow.com

Bitmap U8_4Bitmap;
   if(sentBitmap.getConfig() == Bitmap.Config.ARGB_8888) {
     U8_4Bitmap = sentBitmap;
   } else {
     U8_4Bitmap = sentBitmap.copy(Bitmap.Config.ARGB_8888, true);
   }
   //==============================
   Bitmap bitmap = Bitmap.createBitmap(U8_4Bitmap.getWidth(), U8_4Bitmap.getHeight(), U8_4Bitmap.getConfig());
   final RenderScript rs = RenderScript.create(context);
   final Allocation input = Allocation.createFromBitmap(rs,
       U8_4Bitmap,
       Allocation.MipmapControl.MIPMAP_NONE,
       Allocation.USAGE_SCRIPT);
   final Allocation output = Allocation.createTyped(rs, input.getType());
   final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, output.getElement());
   script.setRadius(radius);
   script.setInput(input);
   script.forEach(output);
   output.copyTo(bitmap);
   rs.destroy();
   return bitmap;

代码示例来源：origin: stackoverflow.com

mOutAllocation   = Allocation.createTyped(mRS,mInAllocation.getType());
mScript = new ScriptC_Square(mRS, getResources(), R.raw.square);
mInAllocation.copyFrom(input);
mOutAllocation.copyTo(output); // copy the result that was stored in mOutAllocation into the array output

代码示例来源：origin: chuanqi305/rscnn

private static float[][] copyFromAllocation2D(Allocation allocation, int n, int c)
{
  float[] alloc = new float[n * c];
  float[][]output = new float[n][c];
  allocation.copyTo(alloc);
  int count = 0;
  for(int i=0;i<n;i++){
    for(int j=0;j<c;j++){
      output[i][j] = alloc[count++];
    }
  }
  return output;
}

代码示例来源：origin: chuanqi305/rscnn

protected void allocFeatureMapNoPad()
{
  Type.Builder outputType = new Type.Builder(renderScript, Element.F32(renderScript));
  outputType.setZ(outputShape[0]);
  outputType.setY(outputShape[1] * outputShape[2]);
  outputType.setX(outputShape[3]);
  Allocation outAllocation = Allocation.createTyped(renderScript, outputType.create());
  FeatureMap output = new FeatureMap();
  output.setFeatureMap(outAllocation);
  output.setN(outputShape[0]);
  output.setH(outputShape[1]);
  output.setW(outputShape[2]);
  output.setC(outputShape[3]);
  output.setPad4(false);
  if(this.featureMapOutput!=null){
    ((FeatureMap)featureMapOutput).getFeatureMap().destroy();
  }
  this.featureMapOutput = output;
}

代码示例来源：origin: gearvrf/GearVRf-Demos

mInputAllocation = Allocation.createTyped(rs, yuvTypeBuilder.create(),
      Allocation.USAGE_IO_INPUT | Allocation.USAGE_SCRIPT);
  mInterAllocation = Allocation.createTyped(rs, rgbTypeBuilder.create(),
      Allocation.USAGE_SCRIPT);
  mInputAllocation = Allocation.createTyped(rs, rgbTypeBuilder.create(),
      Allocation.USAGE_IO_INPUT | Allocation.USAGE_SCRIPT);
mOutputAllocation = Allocation.createTyped(rs, rgbTypeBuilder.create(),
    Allocation.USAGE_IO_OUTPUT | Allocation.USAGE_SCRIPT);

代码示例来源：origin: chuanqi305/rscnn

biasType = Type.createX(renderScript, Element.F32(renderScript), c);
kernelAllocation = Allocation.createTyped(renderScript, kernelType);
biasAllocation = Allocation.createTyped(renderScript, biasType);
  kernelAllocation.copyFrom(weight);
  biasAllocation.copyFrom(bias);
  kernelAllocation.copyFromUnchecked(weightBuffer);
  biasAllocation.copyFromUnchecked(biasBuffer);

代码示例来源：origin: eventtus/photo-editor-android

protected void blur(Bitmap bitmapToBlur, Bitmap blurredBitmap) {
  mBlurInput.copyFrom(bitmapToBlur);
  mBlurScript.setInput(mBlurInput);
  mBlurScript.forEach(mBlurOutput);
  mBlurOutput.copyTo(blurredBitmap);
}

代码示例来源：origin: chuanqi305/rscnn

public float[] getData1D(){
  FeatureMap data = this;
  int size = data.getFeatureMap().getBytesSize() / 4 ;
  float[] output = new float[size];
  data.getFeatureMap().copyTo(output);
  return output;
}

代码示例来源：origin: chuanqi305/rscnn

if(old.getFeatureMap()!=null){
    Allocation out = old.getFeatureMap();
    if(out.getBytesSize()==outNum * outHeight * outWidth * outChannel * 4){
      old.setN(outNum);
      old.setH(outHeight);
      out.destroy();
Allocation outAllocation = Allocation.createTyped(renderScript, outType, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
FeatureMap output = new FeatureMap();
output.setFeatureMap(outAllocation);

代码示例来源：origin: chuanqi305/rscnn

@Override
public void setup()
{
  int channel = outputShape[3];
  int channelAlign = channel;
  if(channel % 4 != 0){
    channelAlign = channel + 4 - channel % 4;
  }
  scriptScale = new ScriptC_Scale(renderScript);
  float[] scaleArray = new float[channelAlign];
  float[] biasArray = new float[channelAlign];
  for(int i=0;i<channel;i++){
    scaleArray[i] = scale[i];
    biasArray[i] = bias[i];
  }
  Allocation scaleAllocation;
  Allocation biasAllocation;
  Type scaleType = Type.createX(renderScript, Element.F32_4(renderScript), channelAlign / 4);
  Type biasType = Type.createX(renderScript, Element.F32_4(renderScript), channelAlign / 4);
  scaleAllocation = Allocation.createTyped(renderScript, scaleType, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_GRAPHICS_TEXTURE | Allocation.USAGE_SCRIPT);
  scaleAllocation.copyFrom(scaleArray);
  biasAllocation = Allocation.createTyped(renderScript, biasType, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_GRAPHICS_TEXTURE | Allocation.USAGE_SCRIPT);
  biasAllocation.copyFrom(biasArray);
  scriptScale.set_scale(scaleAllocation);
  scriptScale.set_bias(biasAllocation);
}

代码示例来源：origin: stackoverflow.com

// Whatever.java
public void copyDoublesTo(double[] entries, Allocation target) 
  throws IOException {

  if (!target.getType().getElement().isCompatible(Element.F64(mRS))) 
    throw new RSRuntimeException("Type mismatch: Element != F64");
  if (target.getType().getCount() != entries.length) 
    throw new RSRuntimeException("Type mismatch: wrong # of entries");

  mScript.bind_target(target);

  ByteArrayOutputStream bytes = new ByteArrayOutputStream(Double.SIZE * dim);
  DataOutputStream longs = new DataOutputStream(bytes);
  long temp;
  for(int i=0; i!=dim; ++i) {
    temp = Double.doubleToLongBits(entries[i]);

    // reverse byte order:
    temp = Long.reverseBytes(temp);

    longs.writeLong(temp);
  }

  target.copyFromUnchecked(bytes.toByteArray());
}

代码示例来源：origin: stackoverflow.com

public void copyDoublesTo(double[] entries, Allocation target) {
  if (!target.getType().getElement().isCompatible(Element.F64(mRS))) {
    throw new RSRuntimeException("Type mismatch: Element != F64");
  }
  if (target.getType().getCount() != entries.length) {
    throw new RSRuntimeException("Type mismatch: wrong # of entries");
  }
  mScript.bind_target(target);
  for(int i=0; i!=entries.length; ++i) {
    mScript.invoke_setTargetEntry(i, entries[i]);
  }
}

代码示例来源：origin: ApplikeySolutions/OrionPreview

public Bitmap blur(Context context, Bitmap image) {
  int width = Math.round(image.getWidth() * BITMAP_SCALE);
  int height = Math.round(image.getHeight() * BITMAP_SCALE);
  Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
  Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);
  RenderScript rs = RenderScript.create(context);
  ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
  Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
  Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
  theIntrinsic.setRadius(BLUR_RADIUS);
  theIntrinsic.setInput(tmpIn);
  theIntrinsic.forEach(tmpOut);
  tmpOut.copyTo(outputBitmap);
  return outputBitmap;
}

代码示例来源：origin: stackoverflow.com

final RenderScript rs = RenderScript.create( myAndroidContext );
final Allocation input = Allocation.createFromBitmap( rs, photo, 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( myBlurRadius /* e.g. 3.f */ );
script.setInput( input );
script.forEach( output );
output.copyTo( photo );

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