__host__ void reduce(const SrcPtr& src, ResType* result, const MaskPtr& mask, int rows, int cols, cudaStream_t stream)
{
const dim3 block(Policy::block_size_x, Policy::block_size_y);
const dim3 grid(divUp(cols, block.x * Policy::patch_size_x), divUp(rows, block.y * Policy::patch_size_y));
reduce<Reductor, Policy::block_size_x * Policy::block_size_y, Policy::patch_size_x, Policy::patch_size_y><<<grid, block, 0, stream>>>(src, result, mask, rows, cols);
CV_CUDEV_SAFE_CALL( cudaGetLastError() );
if (stream == 0)
CV_CUDEV_SAFE_CALL( cudaDeviceSynchronize() );
}
__host__ void histogram(const SrcPtr& src, ResType* hist, const MaskPtr& mask, int rows, int cols, cudaStream_t stream)
{
const dim3 block(Policy::block_size_x, Policy::block_size_y);
const dim3 grid(divUp(rows, block.y));
const int BLOCK_SIZE = Policy::block_size_x * Policy::block_size_y;
histogram<BIN_COUNT, BLOCK_SIZE><<<grid, block, 0, stream>>>(src, hist, mask, rows, cols);
CV_CUDEV_SAFE_CALL( cudaGetLastError() );
if (stream == 0)
CV_CUDEV_SAFE_CALL( cudaDeviceSynchronize() );
}
__host__ void reduceToRow(const SrcPtr& src, ResType* dst, const MaskPtr& mask, int rows, int cols, cudaStream_t stream)
{
const int BLOCK_SIZE_X = 16;
const int BLOCK_SIZE_Y = 16;
const dim3 block(BLOCK_SIZE_X, BLOCK_SIZE_Y);
const dim3 grid(divUp(cols, block.x));
reduceToRow<Reductor, BLOCK_SIZE_X, BLOCK_SIZE_Y><<<grid, block, 0, stream>>>(src, dst, mask, rows, cols);
CV_CUDEV_SAFE_CALL( cudaGetLastError() );
if (stream == 0)
CV_CUDEV_SAFE_CALL( cudaDeviceSynchronize() );
}
__host__ explicit Texture(const GlobPtrSz<T>& mat,
bool normalizedCoords = false,
cudaTextureFilterMode filterMode = cudaFilterModePoint,
cudaTextureAddressMode addressMode = cudaAddressModeClamp)
{
CV_Assert( deviceSupports(FEATURE_SET_COMPUTE_30) );
rows = mat.rows;
cols = mat.cols;
cudaResourceDesc texRes;
std::memset(&texRes, 0, sizeof(texRes));
texRes.resType = cudaResourceTypePitch2D;
texRes.res.pitch2D.devPtr = mat.data;
texRes.res.pitch2D.height = mat.rows;
texRes.res.pitch2D.width = mat.cols;
texRes.res.pitch2D.pitchInBytes = mat.step;
texRes.res.pitch2D.desc = cudaCreateChannelDesc<T>();
cudaTextureDesc texDescr;
std::memset(&texDescr, 0, sizeof(texDescr));
texDescr.addressMode[0] = addressMode;
texDescr.addressMode[1] = addressMode;
texDescr.addressMode[2] = addressMode;
texDescr.filterMode = filterMode;
texDescr.readMode = cudaReadModeElementType;
texDescr.normalizedCoords = normalizedCoords;
CV_CUDEV_SAFE_CALL( cudaCreateTextureObject(&this->texObj, &texRes, &texDescr, 0) );
}
__host__ void reduceToColumn(const SrcPtr& src, ResType* dst, const MaskPtr& mask, int rows, int cols, cudaStream_t stream)
{
const int BLOCK_SIZE_X = Policy::block_size_x;
const int BLOCK_SIZE_Y = Policy::block_size_y;
const int BLOCK_SIZE = BLOCK_SIZE_X * BLOCK_SIZE_Y;
const dim3 block(BLOCK_SIZE);
const dim3 grid(rows);
reduceToColumn<Reductor, BLOCK_SIZE><<<grid, block, 0, stream>>>(src, dst, mask, cols);
CV_CUDEV_SAFE_CALL( cudaGetLastError() );
if (stream == 0)
CV_CUDEV_SAFE_CALL( cudaDeviceSynchronize() );
}
