generic-library/opencv
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

StereoConstantSpaceBP

Browse Source
This commit is contained in:
Vladislav Vinogradov 2012-11-12 14:08:46 +04:00
parent 0e339dd137
commit 1b571bde10
1 changed files with 8 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
modules/gpu/src/cuda/stereocsbp.cu
View File

@ -42,9 +42,11 @@
#if !defined CUDA_DISABLER
#include "internal_shared.hpp"
#include "opencv2/gpu/device/common.hpp"
#include "opencv2/gpu/device/saturate_cast.hpp"
#include "opencv2/gpu/device/limits.hpp"
#include "opencv2/gpu/device/reduce.hpp"
#include "opencv2/gpu/device/functional.hpp"
namespace cv { namespace gpu { namespace device
{
@ -297,28 +299,13 @@ namespace cv { namespace gpu { namespace device
}
extern __shared__ float smem[];
float* dline = smem + winsz * threadIdx.z;
dline[tid] = val;
__syncthreads();
if (winsz >= 256) { if (tid < 128) { dline[tid] += dline[tid + 128]; } __syncthreads(); }
if (winsz >= 128) { if (tid < 64) { dline[tid] += dline[tid + 64]; } __syncthreads(); }
volatile float* vdline = smem + winsz * threadIdx.z;
if (winsz >= 64) if (tid < 32) vdline[tid] += vdline[tid + 32];
if (winsz >= 32) if (tid < 16) vdline[tid] += vdline[tid + 16];
if (winsz >= 16) if (tid < 8) vdline[tid] += vdline[tid + 8];
if (winsz >= 8) if (tid < 4) vdline[tid] += vdline[tid + 4];
if (winsz >= 4) if (tid < 2) vdline[tid] += vdline[tid + 2];
if (winsz >= 2) if (tid < 1) vdline[tid] += vdline[tid + 1];
reduce<winsz>(smem + winsz * threadIdx.z, val, tid, plus<float>());
T* data_cost = (T*)ctemp + y_out * cmsg_step + x_out;
if (tid == 0)
data_cost[cdisp_step1 * d] = saturate_cast<T>(dline[0]);
data_cost[cdisp_step1 * d] = saturate_cast<T>(val);
}
}
@ -496,26 +483,11 @@ namespace cv { namespace gpu { namespace device
}
extern __shared__ float smem[];
float* dline = smem + winsz * threadIdx.z;
dline[tid] = val;
__syncthreads();
if (winsz >= 256) { if (tid < 128) { dline[tid] += dline[tid + 128]; } __syncthreads(); }
if (winsz >= 128) { if (tid < 64) { dline[tid] += dline[tid + 64]; } __syncthreads(); }
volatile float* vdline = smem + winsz * threadIdx.z;
if (winsz >= 64) if (tid < 32) vdline[tid] += vdline[tid + 32];
if (winsz >= 32) if (tid < 16) vdline[tid] += vdline[tid + 16];
if (winsz >= 16) if (tid < 8) vdline[tid] += vdline[tid + 8];
if (winsz >= 8) if (tid < 4) vdline[tid] += vdline[tid + 4];
if (winsz >= 4) if (tid < 2) vdline[tid] += vdline[tid + 2];
if (winsz >= 2) if (tid < 1) vdline[tid] += vdline[tid + 1];
reduce<winsz>(smem + winsz * threadIdx.z, val, tid, plus<float>());
if (tid == 0)
data_cost[cdisp_step1 * d] = saturate_cast<T>(dline[0]);
data_cost[cdisp_step1 * d] = saturate_cast<T>(val);
}
}
@ -889,4 +861,4 @@ namespace cv { namespace gpu { namespace device
} // namespace stereocsbp
}}} // namespace cv { namespace gpu { namespace device {
#endif /* CUDA_DISABLER */
#endif /* CUDA_DISABLER */