opencv/modules/gpu/src/cudastream.cpp
Vladislav Vinogradov 54fa600b9e update docs
minor fixes and refactoring of GPU module
2011-02-16 08:31:45 +00:00

251 lines
9.6 KiB
C++

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#include "precomp.hpp"
using namespace cv;
using namespace cv::gpu;
#if !defined (HAVE_CUDA)
void cv::gpu::Stream::create() { throw_nogpu(); }
void cv::gpu::Stream::release() { throw_nogpu(); }
cv::gpu::Stream::Stream() : impl(0) { throw_nogpu(); }
cv::gpu::Stream::~Stream() { throw_nogpu(); }
cv::gpu::Stream::Stream(const Stream& /*stream*/) { throw_nogpu(); }
Stream& cv::gpu::Stream::operator=(const Stream& /*stream*/) { throw_nogpu(); return *this; }
bool cv::gpu::Stream::queryIfComplete() { throw_nogpu(); return true; }
void cv::gpu::Stream::waitForCompletion() { throw_nogpu(); }
void cv::gpu::Stream::enqueueDownload(const GpuMat& /*src*/, Mat& /*dst*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueDownload(const GpuMat& /*src*/, CudaMem& /*dst*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueUpload(const CudaMem& /*src*/, GpuMat& /*dst*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueUpload(const Mat& /*src*/, GpuMat& /*dst*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueCopy(const GpuMat& /*src*/, GpuMat& /*dst*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueMemSet(GpuMat& /*src*/, Scalar /*val*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueMemSet(GpuMat& /*src*/, Scalar /*val*/, const GpuMat& /*mask*/) { throw_nogpu(); }
void cv::gpu::Stream::enqueueConvert(const GpuMat& /*src*/, GpuMat& /*dst*/, int /*type*/, double /*a*/, double /*b*/) { throw_nogpu(); }
#else /* !defined (HAVE_CUDA) */
#include "opencv2/gpu/stream_accessor.hpp"
namespace cv
{
namespace gpu
{
namespace matrix_operations
{
void copy_to_with_mask(const DevMem2D& src, DevMem2D dst, int depth, const DevMem2D& mask, int channels, const cudaStream_t & stream = 0);
template <typename T>
void set_to_gpu(const DevMem2D& mat, const T* scalar, int channels, cudaStream_t stream);
template <typename T>
void set_to_gpu(const DevMem2D& mat, const T* scalar, const DevMem2D& mask, int channels, cudaStream_t stream);
void convert_gpu(const DevMem2D& src, int sdepth, const DevMem2D& dst, int ddepth, double alpha, double beta, cudaStream_t stream = 0);
}
}
}
struct Stream::Impl
{
cudaStream_t stream;
int ref_counter;
};
namespace
{
template<class S, class D> void devcopy(const S& src, D& dst, cudaStream_t s, cudaMemcpyKind k)
{
dst.create(src.size(), src.type());
size_t bwidth = src.cols * src.elemSize();
cudaSafeCall( cudaMemcpy2DAsync(dst.data, dst.step, src.data, src.step, bwidth, src.rows, k, s) );
};
template <typename T>
void kernelSet(GpuMat& src, const Scalar& s, cudaStream_t stream)
{
Scalar_<T> sf = s;
matrix_operations::set_to_gpu(src, sf.val, src.channels(), stream);
}
template <typename T>
void kernelSetMask(GpuMat& src, const Scalar& s, const GpuMat& mask, cudaStream_t stream)
{
Scalar_<T> sf = s;
matrix_operations::set_to_gpu(src, sf.val, mask, src.channels(), stream);
}
}
CV_EXPORTS cudaStream_t cv::gpu::StreamAccessor::getStream(const Stream& stream) { return stream.impl->stream; };
void cv::gpu::Stream::create()
{
if (impl)
release();
cudaStream_t stream;
cudaSafeCall( cudaStreamCreate( &stream ) );
impl = (Stream::Impl*)fastMalloc(sizeof(Stream::Impl));
impl->stream = stream;
impl->ref_counter = 1;
}
void cv::gpu::Stream::release()
{
if( impl && CV_XADD(&impl->ref_counter, -1) == 1 )
{
cudaSafeCall( cudaStreamDestroy( impl->stream ) );
cv::fastFree( impl );
}
}
cv::gpu::Stream::Stream() : impl(0) { create(); }
cv::gpu::Stream::~Stream() { release(); }
cv::gpu::Stream::Stream(const Stream& stream) : impl(stream.impl)
{
if( impl )
CV_XADD(&impl->ref_counter, 1);
}
Stream& cv::gpu::Stream::operator=(const Stream& stream)
{
if( this != &stream )
{
if( stream.impl )
CV_XADD(&stream.impl->ref_counter, 1);
release();
impl = stream.impl;
}
return *this;
}
bool cv::gpu::Stream::queryIfComplete()
{
cudaError_t err = cudaStreamQuery( impl->stream );
if (err == cudaErrorNotReady || err == cudaSuccess)
return err == cudaSuccess;
cudaSafeCall(err);
return false;
}
void cv::gpu::Stream::waitForCompletion() { cudaSafeCall( cudaStreamSynchronize( impl->stream ) ); }
void cv::gpu::Stream::enqueueDownload(const GpuMat& src, Mat& dst)
{
// if not -> allocation will be done, but after that dst will not point to page locked memory
CV_Assert(src.cols == dst.cols && src.rows == dst.rows && src.type() == dst.type() );
devcopy(src, dst, impl->stream, cudaMemcpyDeviceToHost);
}
void cv::gpu::Stream::enqueueDownload(const GpuMat& src, CudaMem& dst) { devcopy(src, dst, impl->stream, cudaMemcpyDeviceToHost); }
void cv::gpu::Stream::enqueueUpload(const CudaMem& src, GpuMat& dst){ devcopy(src, dst, impl->stream, cudaMemcpyHostToDevice); }
void cv::gpu::Stream::enqueueUpload(const Mat& src, GpuMat& dst) { devcopy(src, dst, impl->stream, cudaMemcpyHostToDevice); }
void cv::gpu::Stream::enqueueCopy(const GpuMat& src, GpuMat& dst) { devcopy(src, dst, impl->stream, cudaMemcpyDeviceToDevice); }
void cv::gpu::Stream::enqueueMemSet(GpuMat& src, Scalar val)
{
CV_Assert((src.depth() != CV_64F) ||
(TargetArchs::builtWith(NATIVE_DOUBLE) && DeviceInfo().supports(NATIVE_DOUBLE)));
typedef void (*set_caller_t)(GpuMat& src, const Scalar& s, cudaStream_t stream);
static const set_caller_t set_callers[] =
{
kernelSet<uchar>, kernelSet<schar>, kernelSet<ushort>, kernelSet<short>,
kernelSet<int>, kernelSet<float>, kernelSet<double>
};
set_callers[src.depth()](src, val, impl->stream);
}
void cv::gpu::Stream::enqueueMemSet(GpuMat& src, Scalar val, const GpuMat& mask)
{
CV_Assert((src.depth() != CV_64F) ||
(TargetArchs::builtWith(NATIVE_DOUBLE) && DeviceInfo().supports(NATIVE_DOUBLE)));
CV_Assert(mask.type() == CV_8UC1);
typedef void (*set_caller_t)(GpuMat& src, const Scalar& s, const GpuMat& mask, cudaStream_t stream);
static const set_caller_t set_callers[] =
{
kernelSetMask<uchar>, kernelSetMask<schar>, kernelSetMask<ushort>, kernelSetMask<short>,
kernelSetMask<int>, kernelSetMask<float>, kernelSetMask<double>
};
set_callers[src.depth()](src, val, mask, impl->stream);
}
void cv::gpu::Stream::enqueueConvert(const GpuMat& src, GpuMat& dst, int rtype, double alpha, double beta)
{
CV_Assert((src.depth() != CV_64F && CV_MAT_DEPTH(rtype) != CV_64F) ||
(TargetArchs::builtWith(NATIVE_DOUBLE) && DeviceInfo().supports(NATIVE_DOUBLE)));
bool noScale = fabs(alpha-1) < std::numeric_limits<double>::epsilon() && fabs(beta) < std::numeric_limits<double>::epsilon();
if( rtype < 0 )
rtype = src.type();
else
rtype = CV_MAKETYPE(CV_MAT_DEPTH(rtype), src.channels());
int sdepth = src.depth(), ddepth = CV_MAT_DEPTH(rtype);
if( sdepth == ddepth && noScale )
{
src.copyTo(dst);
return;
}
GpuMat temp;
const GpuMat* psrc = &src;
if( sdepth != ddepth && psrc == &dst )
psrc = &(temp = src);
dst.create( src.size(), rtype );
matrix_operations::convert_gpu(psrc->reshape(1), sdepth, dst.reshape(1), ddepth, alpha, beta, impl->stream);
}
#endif /* !defined (HAVE_CUDA) */