COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae

1 files changed, 130 insertions, 0 deletions

diff --git a/src/runtime/CL/CLPyramid.cpp b/src/runtime/CL/CLPyramid.cpp
new file mode 100644
index 0000000000..41d81ea0f8
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+++ b/src/runtime/CL/CLPyramid.cpp
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+/*
+ * 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/CL/CLPyramid.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/PyramidInfo.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/TensorShape.h"
+
+#include <array>
+#include <cmath>
+
+using namespace arm_compute;
+
+CLPyramid::CLPyramid()
+    : _info(), _pyramid(nullptr)
+{
+}
+
+void CLPyramid::init(const PyramidInfo &info)
+{
+    internal_init(info, false);
+}
+
+void CLPyramid::init_auto_padding(const PyramidInfo &info)
+{
+    internal_init(info, true);
+}
+
+void CLPyramid::internal_init(const PyramidInfo &info, bool auto_padding)
+{
+    _info    = info;
+    _pyramid = arm_compute::cpp14::make_unique<CLTensor[]>(_info.num_levels());
+
+    size_t      w            = _info.width();
+    size_t      h            = _info.height();
+    size_t      ref_w        = w;
+    size_t      ref_h        = h;
+    const bool  is_orb_scale = (SCALE_PYRAMID_ORB == _info.scale());
+    TensorShape tensor_shape = _info.tensor_shape();
+
+    // Note: Look-up table used by the OpenVX sample implementation
+    const std::array<float, 4> c_orbscale =
+    {
+        {
+            0.5f,
+            SCALE_PYRAMID_ORB,
+            SCALE_PYRAMID_ORB * SCALE_PYRAMID_ORB,
+            SCALE_PYRAMID_ORB *SCALE_PYRAMID_ORB * SCALE_PYRAMID_ORB
+        }
+    };
+
+    for(size_t i = 0; i < _info.num_levels(); ++i)
+    {
+        TensorInfo tensor_info(tensor_shape, _info.format());
+
+        if(auto_padding)
+        {
+            tensor_info.auto_padding();
+        }
+
+        _pyramid[i].allocator()->init(tensor_info);
+
+        if(is_orb_scale)
+        {
+            const float orb_scale = c_orbscale[(i + 1) % 4];
+            w                     = std::ceil(ref_w * orb_scale);
+            h                     = std::ceil(ref_h * orb_scale);
+
+            if(0 == ((i + 1) % 4))
+            {
+                ref_w = w;
+                ref_h = h;
+            }
+        }
+        else
+        {
+            w = (w + 1) * _info.scale();
+            h = (h + 1) * _info.scale();
+        }
+
+        // Update tensor_shape
+        tensor_shape.set(0, w);
+        tensor_shape.set(1, h);
+    }
+}
+
+void CLPyramid::allocate()
+{
+    ARM_COMPUTE_ERROR_ON(_pyramid == nullptr);
+
+    for(size_t i = 0; i < _info.num_levels(); ++i)
+    {
+        (_pyramid.get() + i)->allocator()->allocate();
+    }
+}
+
+const PyramidInfo *CLPyramid::info() const
+{
+    return &_info;
+}
+
+CLTensor *CLPyramid::get_pyramid_level(size_t index) const
+{
+    ARM_COMPUTE_ERROR_ON(index >= _info.num_levels());
+
+    return (_pyramid.get() + index);
+}