一个RenderScript内核可以重载吗?

Kie*_*etz 1 overloading renderscript

我想重载一个RenderScript内核:

/* donothing.rs */

uchar4 __attribute__((kernel, overloadable)) root (uchar4 in) {
  return in;
}

float4 __attribute__((kernel, overloadable)) root (float4 in) {
  return in;
}
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但是,这会生成同名的Java方法:

// ScriptC_donothing.java:95
public void forEach_root(Allocation ain, Allocation aout, Script.LaunchOptions sc) {
    // check ain
    if (!ain.getType().getElement().isCompatible(__U8_4)) {
        throw new RSRuntimeException("Type mismatch with U8_4!");
    }
    ...

// ScriptC_donothing.java:225
public void forEach_root(Allocation ain, Allocation aout, Script.LaunchOptions sc) {
    // check ain
    if (!ain.getType().getElement().isCompatible(__F32_4)) {
        throw new RSRuntimeException("Type mismatch with F32_4!");
    }
    ...
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有没有办法编写内核以使重载有效?我预期的用法是:

// DoNothingActivity.java

mInAllocation = Allocation.createFromBitmap(mRS, ...
mOutAllocation = Allocation.createTyped(mRS, mInAllocation.getType());

mScript = new ScriptC_donothing(mRS);
mScript.forEach_root(mInAllocation, mOutAllocation);
// calls uchar4 kernel
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Tim*_*ray 5

现在无法重载内核名称。不过,我们正在投资一些方法,以便将来将更多类型信息与分配相关联;我们会牢记这个用例。