Question

我试图将所有分配单元格复制到renderscript中的其他分配。从android开发人员api参考我得到了这个方法 rsAllocationCopy1DRange ，其签名是

void rsAllocationCopy1DRange（rs_allocation dstAlloc，uint32_t dstOff，uint32_t dstMip，uint32_t count，rs_allocation srcAlloc，uint32_t srcOff，uint32_t srcMip）;

。
方法的Google参考链接为https://developer.android.com/guide/topics/renderscript/reference/rs_allocation_data.html

但是当我运行脚本时，它显示在android.support.v8.renderscript中调用不支持的方法rsAllocationCopy1DRange 错误

我的rs脚本位于

之下

#pragma version(1)
#pragma rs java_package_name(com.ravikant.rs)
#pragma rs_fp_relaxed

int width;
int height;

rs_allocation stateArr;
rs_allocation stateNextArr;

void __attribute__((kernel)) _copy(int32_t in)
{
  int len=width*height;
  rsAllocationCopy1DRange(stateArr,0,0,len,stateNextArr,0,0);
 }

和java代码是

float[] sideArr=new float[width*height};
Arrays.fill(sideArr,1);
Allocation stateArrAlloc = Allocation.createSized(rs, Element.F32(rs), sideArr.length);
Allocation stateNextArrAlloc = Allocation.createSized(rs, Element.F32(rs), sideArr.length);
stateArrAlloc.copyFrom(sideArr);
stateNextArrAlloc.copyFrom(sideArr);

scriptC_copycells.set_width(width);
scriptC_copycells.set_height(height);
scriptC_copycells.set_stateArr(stateArrAlloc);
scriptC_copycells.set_stateNextArr(stateNextArrAlloc);
scriptC_copycells.forEach__copy(stateArrAlloc);

错误的Logcat输出是

 E/AndroidRuntime: FATAL EXCEPTION: RSMessageThread
 Process: com.ravikant.rs, PID: 2321
 android.support.v8.renderscript.RSRuntimeException: Fatal error 4097,
 details: Error: Call to unsupported function rsAllocationCopy1DRange in kernel at android.support.v8.renderscript.RenderScript$MessageThread.run(RenderScript.java:1313)

Answer 1

这个bug在logcat中是正确的。您不能在RenderScript内核中进行此类调用。您只能在可调用函数内进行此调用。或者，您可以使用Java API从这一方面执行此复制。

在android.support.v8.renderscript中调用不支持的方法rsAllocationCopy1DRange

1 个答案: