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fixed bug in SURF_GPU (memory access error)

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pull/13383/head
Vladislav Vinogradov 13 years ago
parent 485e71bcc2
commit dac9f69ba4
1 changed files with 3 additions and 3 deletions
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  1. 6
      modules/gpu/src/cuda/surf.cu

6
modules/gpu/src/cuda/surf.cu
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@ -250,9 +250,9 @@ namespace cv { namespace gpu { namespace surf
// Is this thread within the hessian buffer?
const int zoff = blockDim.x * blockDim.y;
const int localLin = threadIdx.x + threadIdx.y * blockDim.x + zoff;
N9[localLin - zoff] = det.ptr(c_layer_rows * (layer - 1) + i)[j];
N9[localLin ] = det.ptr(c_layer_rows * (layer ) + i)[j];
N9[localLin + zoff] = det.ptr(c_layer_rows * (layer + 1) + i)[j];
N9[localLin - zoff] = det.ptr(c_layer_rows * (layer - 1) + min(max(i, 0), c_img_rows))[min(max(j, 0), c_img_cols - 1)];
N9[localLin ] = det.ptr(c_layer_rows * (layer ) + min(max(i, 0), c_img_rows))[min(max(j, 0), c_img_cols - 1)];
N9[localLin + zoff] = det.ptr(c_layer_rows * (layer + 1) + min(max(i, 0), c_img_rows))[min(max(j, 0), c_img_cols - 1)];
__syncthreads();
if (i < c_layer_rows - margin && j < c_layer_cols - margin && threadIdx.x > 0 && threadIdx.x < blockDim.x - 1 && threadIdx.y > 0 && threadIdx.y < blockDim.y - 1)

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