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[moved from opencv] fix test failure of cudafilters Median_Accuracy

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* avoid race condition

original commit: fa8684b5c8
pull/1823/head
Tomoaki Teshima 7 years ago
parent cfab48b4be
commit b8dc51ad22
1 changed files with 22 additions and 20 deletions
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  1. 42
      modules/cudafilters/src/cuda/median_filter.cu

42
modules/cudafilters/src/cuda/median_filter.cu
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@ -127,14 +127,14 @@ namespace cv { namespace cuda { namespace device
Hscan[tx]=H[tx];
}
__syncthreads();
if(tx<8){
if(tx>=1 )
Hscan[tx]+=Hscan[tx-1];
if(tx>=2)
Hscan[tx]+=Hscan[tx-2];
if(tx>=4)
Hscan[tx]+=Hscan[tx-4];
}
if (1 <= tx && tx < 8 )
Hscan[tx]+=Hscan[tx-1];
__syncthreads();
if (2 <= tx && tx < 8 )
Hscan[tx]+=Hscan[tx-2];
__syncthreads();
if (4 <= tx && tx < 8 )
Hscan[tx]+=Hscan[tx-4];
__syncthreads();
if(tx<7){
@ -158,18 +158,20 @@ namespace cv { namespace cuda { namespace device
Hscan[tx]=H[tx];
}
__syncthreads();
if(tx<32){
if(tx>=1)
Hscan[tx]+=Hscan[tx-1];
if(tx>=2)
Hscan[tx]+=Hscan[tx-2];
if(tx>=4)
Hscan[tx]+=Hscan[tx-4];
if(tx>=8)
Hscan[tx]+=Hscan[tx-8];
if(tx>=16)
Hscan[tx]+=Hscan[tx-16];
}
if ( 1 <= tx && tx < 32 )
Hscan[tx]+=Hscan[tx-1];
__syncthreads();
if ( 2 <= tx && tx < 32 )
Hscan[tx]+=Hscan[tx-2];
__syncthreads();
if ( 4 <= tx && tx < 32 )
Hscan[tx]+=Hscan[tx-4];
__syncthreads();
if ( 8 <= tx && tx < 32 )
Hscan[tx]+=Hscan[tx-8];
__syncthreads();
if ( 16 <= tx && tx < 32 )
Hscan[tx]+=Hscan[tx-16];
__syncthreads();
if(tx<31){
if(Hscan[tx+1] > medPos && Hscan[tx] < medPos){

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