__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) );
}
void cv::gpu::labelComponents(const GpuMat& mask, GpuMat& components, int flags, Stream& s)
{
CV_Assert(!mask.empty() && mask.type() == CV_8U);
if (!deviceSupports(SHARED_ATOMICS))
CV_Error(CV_StsNotImplemented, "The device doesn't support shared atomics and communicative synchronization!");
components.create(mask.size(), CV_32SC1);
cudaStream_t stream = StreamAccessor::getStream(s);
device::ccl::labelComponents(mask, components, flags, stream);
}
__host__ void gridHistogram_(const SrcPtr& src, GpuMat_<ResType>& dst, Stream& stream = Stream::Null())
{
CV_Assert( deviceSupports(SHARED_ATOMICS) );
const int rows = getRows(src);
const int cols = getCols(src);
dst.create(1, BIN_COUNT);
dst.setTo(0, stream);
grid_histogram_detail::histogram<BIN_COUNT, Policy>(shrinkPtr(src),
dst[0],
WithOutMask(),
rows, cols,
StreamAccessor::getStream(stream));
}
