reorg layer ocl implementation

Signed-off-by: Li Peng <peng.li@intel.com>
This commit is contained in:
Li Peng 2017-11-29 21:09:31 +08:00
parent 85b1c4060c
commit 7707c9bfba
2 changed files with 107 additions and 0 deletions

View File

@ -44,6 +44,7 @@
#include <opencv2/dnn/shape_utils.hpp>
#include <opencv2/dnn/all_layers.hpp>
#include <iostream>
#include "opencl_kernels_dnn.hpp"
namespace cv
{
@ -86,11 +87,54 @@ public:
return backendId == DNN_BACKEND_DEFAULT;
}
#ifdef HAVE_OPENCL
bool forward_ocl(InputArrayOfArrays inps, OutputArrayOfArrays outs, OutputArrayOfArrays internals)
{
std::vector<UMat> inputs;
std::vector<UMat> outputs;
inps.getUMatVector(inputs);
outs.getUMatVector(outputs);
String buildopt = String("-DDtype=") + ocl::typeToStr(inputs[0].type()) + String(" ");
for (size_t i = 0; i < inputs.size(); i++)
{
ocl::Kernel kernel("reorg", ocl::dnn::reorg_oclsrc, buildopt);
if (kernel.empty())
return false;
UMat& srcBlob = inputs[i];
UMat& dstBlob = outputs[0];
int channels = srcBlob.size[1];
int height = srcBlob.size[2];
int width = srcBlob.size[3];
size_t nthreads = channels * height * width;
kernel.set(0, (int)nthreads);
kernel.set(1, ocl::KernelArg::PtrReadOnly(srcBlob));
kernel.set(2, (int)channels);
kernel.set(3, (int)height);
kernel.set(4, (int)width);
kernel.set(5, (int)reorgStride);
kernel.set(6, ocl::KernelArg::PtrWriteOnly(dstBlob));
if (!kernel.run(1, &nthreads, NULL, false))
return false;
}
return true;
}
#endif
void forward(InputArrayOfArrays inputs_arr, OutputArrayOfArrays outputs_arr, OutputArrayOfArrays internals_arr)
{
CV_TRACE_FUNCTION();
CV_TRACE_ARG_VALUE(name, "name", name.c_str());
CV_OCL_RUN((preferableTarget == DNN_TARGET_OPENCL) &&
OCL_PERFORMANCE_CHECK(ocl::Device::getDefault().isIntel()),
forward_ocl(inputs_arr, outputs_arr, internals_arr))
Layer::forward_fallback(inputs_arr, outputs_arr, internals_arr);
}

View File

@ -0,0 +1,63 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (c) 2016-2017 Fabian David Tschopp, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
__kernel void reorg(const int count,
__global const Dtype* src,
const int channels,
const int height,
const int width,
const int reorgStride,
__global Dtype* dst)
{
for (int index = get_global_id(0); index < count; index += get_global_size(0))
{
int k = index / (height * width);
int j = (index - (k * height * width)) / width;
int i = (index - (k * height * width)) % width;
int out_c = channels / (reorgStride*reorgStride);
int c2 = k % out_c;
int offset = k / out_c;
int w2 = i*reorgStride + offset % reorgStride;
int h2 = j*reorgStride + offset / reorgStride;
int in_index = w2 + width*reorgStride*(h2 + height*reorgStride*c2);
dst[index] = src[in_index];
}
}