From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- src/core/CL/kernels/CLChannelExtractKernel.cpp | 148 +++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 src/core/CL/kernels/CLChannelExtractKernel.cpp (limited to 'src/core/CL/kernels/CLChannelExtractKernel.cpp') diff --git a/src/core/CL/kernels/CLChannelExtractKernel.cpp b/src/core/CL/kernels/CLChannelExtractKernel.cpp new file mode 100644 index 0000000000..541153316a --- /dev/null +++ b/src/core/CL/kernels/CLChannelExtractKernel.cpp @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2016, 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "arm_compute/core/CL/kernels/CLChannelExtractKernel.h" + +#include "arm_compute/core/CL/CLKernelLibrary.h" +#include "arm_compute/core/CL/ICLMultiImage.h" +#include "arm_compute/core/CL/ICLTensor.h" +#include "arm_compute/core/CL/OpenCL.h" +#include "arm_compute/core/Coordinates.h" +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/MultiImageInfo.h" +#include "arm_compute/core/TensorInfo.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/core/Utils.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" + +#include +#include + +using namespace arm_compute; + +CLChannelExtractKernel::CLChannelExtractKernel() + : _input(nullptr), _output(nullptr), _num_elems_processed_per_iteration(8), _subsampling(1) +{ +} + +void CLChannelExtractKernel::configure(const ICLTensor *input, Channel channel, ICLTensor *output) +{ + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input, Format::RGB888, Format::RGBA8888, Format::YUYV422, Format::UYVY422); + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output, Format::U8); + ARM_COMPUTE_ERROR_ON(static_cast(input) == static_cast(output)); + + _input = input; + _output = output; + + // Check format + const Format format = input->info()->format(); + ARM_COMPUTE_ERROR_ON_CHANNEL_NOT_IN_KNOWN_FORMAT(format, channel); + + // Create kernel + std::string kernel_name = "channel_extract_" + string_from_format(format); + std::set build_opts = { ("-DCHANNEL_" + string_from_channel(channel)) }; + _kernel = static_cast(CLKernelLibrary::get().create_kernel(kernel_name, build_opts)); + + // Half the processed elements for U,V channels due to sub-sampling of 2 + _subsampling = ((Format::YUYV422 == format || Format::UYVY422 == format) && Channel::Y != channel) ? 2 : 1; + + // Configure window + Window win = calculate_max_window(*input->info(), Steps(_num_elems_processed_per_iteration)); + AccessWindowHorizontal input_access(input->info(), 0, _num_elems_processed_per_iteration); + AccessWindowRectangle output_access(input->info(), 0, 0, _num_elems_processed_per_iteration, 1, 1.f / _subsampling, 1.f / _subsampling); + + update_window_and_padding(win, input_access, output_access); + + ValidRegion input_valid_region = input->info()->valid_region(); + output_access.set_valid_region(win, ValidRegion(std::move(input_valid_region.anchor), output->info()->tensor_shape())); + + ICLKernel::configure(win); +} + +void CLChannelExtractKernel::configure(const ICLMultiImage *input, Channel channel, ICLImage *output) +{ + ARM_COMPUTE_ERROR_ON_TENSOR_NOT_2D(output); + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input, Format::NV12, Format::NV21, Format::IYUV, Format::YUV444); + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output, Format::U8); + ARM_COMPUTE_ERROR_ON(static_cast(input) == static_cast(output)); + + // Get format + const Format fmt = input->info()->format(); + + // Get input plane + const ICLImage *input_plane = input->cl_plane(plane_idx_from_channel(fmt, channel)); + ARM_COMPUTE_ERROR_ON(nullptr == input_plane); + + _output = output; + _input = input_plane; + _subsampling = 1; + + // Create kernel + std::string kernel_name; + std::set build_opts; + if(Channel::Y == channel || Format::IYUV == fmt || Format::YUV444 == fmt) + { + kernel_name = "copy_plane"; + } + else + { + kernel_name = "channel_extract_" + string_from_format(fmt); + build_opts.insert(("-DCHANNEL_" + string_from_channel(channel))); + } + _kernel = static_cast(CLKernelLibrary::get().create_kernel(kernel_name, build_opts)); + + // Configure window + Window win = calculate_max_window(*input_plane->info(), Steps(_num_elems_processed_per_iteration)); + AccessWindowHorizontal output_access(input_plane->info(), 0, _num_elems_processed_per_iteration); + + update_window_and_padding(win, + AccessWindowHorizontal(input_plane->info(), 0, _num_elems_processed_per_iteration), + output_access); + + output_access.set_valid_region(win, input_plane->info()->valid_region()); + + ICLKernel::configure(win); +} + +void CLChannelExtractKernel::run(const Window &window, cl::CommandQueue &queue) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window); + + Window slice = window.first_slice_window_2D(); + + do + { + Window win_sub(slice); + win_sub.set(Window::DimX, Window::Dimension(win_sub.x().start() / _subsampling, win_sub.x().end() / _subsampling, win_sub.x().step() / _subsampling)); + win_sub.set(Window::DimY, Window::Dimension(win_sub.y().start() / _subsampling, win_sub.y().end() / _subsampling, 1)); + + unsigned int idx = 0; + add_2D_tensor_argument(idx, _input, slice); + add_2D_tensor_argument(idx, _output, win_sub); + enqueue(queue, *this, slice); + } + while(window.slide_window_slice_2D(slice)); +} -- cgit v1.2.1