From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001
From: Anthony Barbier <anthony.barbier@arm.com>
Date: Mon, 4 Sep 2017 18:44:23 +0100
Subject: COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
---
 src/runtime/NEON/functions/NEHOGDescriptor.cpp | 99 ++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 src/runtime/NEON/functions/NEHOGDescriptor.cpp

(limited to 'src/runtime/NEON/functions/NEHOGDescriptor.cpp')

diff --git a/src/runtime/NEON/functions/NEHOGDescriptor.cpp b/src/runtime/NEON/functions/NEHOGDescriptor.cpp
new file mode 100644
index 0000000000..a592f53d44
--- /dev/null
+++ b/src/runtime/NEON/functions/NEHOGDescriptor.cpp
@@ -0,0 +1,99 @@
+/*
+ * 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/runtime/NEON/functions/NEHOGDescriptor.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/HOGInfo.h"
+#include "arm_compute/core/Size2D.h"
+#include "arm_compute/core/Validate.h"
+#include "arm_compute/runtime/NEON/NEScheduler.h"
+
+using namespace arm_compute;
+
+NEHOGDescriptor::NEHOGDescriptor()
+    : _gradient(), _orient_bin(), _block_norm(), _mag(), _phase(), _hog_space()
+{
+}
+
+void NEHOGDescriptor::configure(ITensor *input, ITensor *output, const IHOG *hog, BorderMode border_mode, uint8_t constant_border_value)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8);
+    ARM_COMPUTE_ERROR_ON(nullptr == output);
+    ARM_COMPUTE_ERROR_ON(nullptr == hog);
+
+    const HOGInfo *hog_info = hog->info();
+    const size_t   width    = input->info()->dimension(Window::DimX);
+    const size_t   height   = input->info()->dimension(Window::DimY);
+    const size_t   num_bins = hog_info->num_bins();
+
+    Size2D cell_size = hog_info->cell_size();
+
+    // Calculate number of cells along the x and y directions for the hog_space
+    const size_t num_cells_x = width / cell_size.width;
+    const size_t num_cells_y = height / cell_size.height;
+
+    // TensorShape of the input image
+    const TensorShape &shape_img = input->info()->tensor_shape();
+
+    // TensorShape of the hog space
+    TensorShape shape_hog_space = input->info()->tensor_shape();
+    shape_hog_space.set(Window::DimX, num_cells_x);
+    shape_hog_space.set(Window::DimY, num_cells_y);
+
+    // Allocate memory for magnitude, phase and hog space
+    TensorInfo info_mag(shape_img, Format::S16);
+    _mag.allocator()->init(info_mag);
+
+    TensorInfo info_phase(shape_img, Format::U8);
+    _phase.allocator()->init(info_phase);
+
+    TensorInfo info_space(shape_hog_space, num_bins, DataType::F32);
+    _hog_space.allocator()->init(info_space);
+
+    // Initialise gradient kernel
+    _gradient.configure(input, &_mag, &_phase, hog_info->phase_type(), border_mode, constant_border_value);
+
+    // Initialise orientation binning kernel
+    _orient_bin.configure(&_mag, &_phase, &_hog_space, hog->info());
+
+    // Initialize HOG norm kernel
+    _block_norm.configure(&_hog_space, output, hog->info());
+
+    // Allocate intermediate tensors
+    _mag.allocator()->allocate();
+    _phase.allocator()->allocate();
+    _hog_space.allocator()->allocate();
+}
+
+void NEHOGDescriptor::run()
+{
+    // Run gradient
+    _gradient.run();
+
+    // Run orientation binning kernel
+    NEScheduler::get().schedule(&_orient_bin, Window::DimY);
+
+    // Run block normalization kernel
+    NEScheduler::get().schedule(&_block_norm, Window::DimY);
+}
-- 
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