COMPMID-344 Updated doxygen

Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae

1 files changed, 155 insertions, 0 deletions

diff --git a/src/runtime/CL/functions/CLCannyEdge.cpp b/src/runtime/CL/functions/CLCannyEdge.cpp
new file mode 100644
index 0000000000..1d018b8347
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+++ b/src/runtime/CL/functions/CLCannyEdge.cpp
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+/*
+ * Copyright (c) 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/functions/CLCannyEdge.h"
+
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "arm_compute/core/CL/OpenCL.h"
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/Validate.h"
+#include "arm_compute/runtime/CL/CLScheduler.h"
+#include "arm_compute/runtime/CL/functions/CLSobel3x3.h"
+#include "arm_compute/runtime/CL/functions/CLSobel5x5.h"
+#include "arm_compute/runtime/CL/functions/CLSobel7x7.h"
+
+using namespace arm_compute;
+
+CLCannyEdge::CLCannyEdge()
+    : _sobel(nullptr), _gradient(), _border_mag_gradient(), _non_max_suppr(), _edge_trace(), _gx(), _gy(), _mag(), _phase(), _nonmax(), _visited(), _recorded(), _l1_list_counter(), _l1_stack()
+{
+}
+
+void CLCannyEdge::configure(ICLTensor *input, ICLTensor *output, int32_t upper_thr, int32_t lower_thr, int32_t gradient_size, int32_t norm_type, 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_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8);
+    ARM_COMPUTE_ERROR_ON((1 != norm_type) && (2 != norm_type));
+    ARM_COMPUTE_ERROR_ON(lower_thr > upper_thr);
+
+    const unsigned int L1_hysteresis_stack_size = 8;
+    const TensorShape  shape                    = input->info()->tensor_shape();
+
+    TensorInfo gradient_info;
+    TensorInfo info;
+
+    // Initialize images
+    if(gradient_size < 7)
+    {
+        gradient_info.init(shape, 1, arm_compute::DataType::S16);
+        info.init(shape, 1, arm_compute::DataType::U16);
+    }
+    else
+    {
+        gradient_info.init(shape, 1, arm_compute::DataType::S32);
+        info.init(shape, 1, arm_compute::DataType::U32);
+    }
+
+    _gx.allocator()->init(gradient_info);
+    _gy.allocator()->init(gradient_info);
+    _mag.allocator()->init(info);
+    _nonmax.allocator()->init(info);
+
+    TensorInfo info_u8(shape, 1, arm_compute::DataType::U8);
+    _phase.allocator()->init(info_u8);
+    _l1_list_counter.allocator()->init(info_u8);
+
+    TensorInfo info_u32(shape, 1, arm_compute::DataType::U32);
+    _visited.allocator()->init(info_u32);
+    _recorded.allocator()->init(info_u32);
+
+    TensorShape shape_l1_stack = input->info()->tensor_shape();
+    shape_l1_stack.set(0, input->info()->dimension(0) * L1_hysteresis_stack_size);
+    TensorInfo info_s32(shape_l1_stack, 1, arm_compute::DataType::S32);
+    _l1_stack.allocator()->init(info_s32);
+
+    // Configure/Init sobelNxN
+    if(gradient_size == 3)
+    {
+        auto k = arm_compute::cpp14::make_unique<CLSobel3x3>();
+        k->configure(input, &_gx, &_gy, border_mode, constant_border_value);
+        _sobel = std::move(k);
+    }
+    else if(gradient_size == 5)
+    {
+        auto k = arm_compute::cpp14::make_unique<CLSobel5x5>();
+        k->configure(input, &_gx, &_gy, border_mode, constant_border_value);
+        _sobel = std::move(k);
+    }
+    else if(gradient_size == 7)
+    {
+        auto k = arm_compute::cpp14::make_unique<CLSobel7x7>();
+        k->configure(input, &_gx, &_gy, border_mode, constant_border_value);
+        _sobel = std::move(k);
+    }
+    else
+    {
+        ARM_COMPUTE_ERROR("Gradient %d size not supported", gradient_size);
+    }
+
+    // Configure gradient
+    _gradient.configure(&_gx, &_gy, &_mag, &_phase, norm_type);
+
+    // Configure non-maxima suppression
+    _non_max_suppr.configure(&_mag, &_phase, &_nonmax, lower_thr, border_mode == BorderMode::UNDEFINED);
+
+    // Fill border around magnitude image as non-maxima suppression will access
+    // it. If border mode is undefined filling the border is a nop.
+    _border_mag_gradient.configure(&_mag, _non_max_suppr.border_size(), border_mode, constant_border_value);
+
+    // Configure edge tracing
+    _edge_trace.configure(&_nonmax, output, upper_thr, lower_thr, &_visited, &_recorded, &_l1_stack, &_l1_list_counter);
+
+    _gx.allocator()->allocate();
+    _gy.allocator()->allocate();
+    _phase.allocator()->allocate();
+    _mag.allocator()->allocate();
+    _visited.allocator()->allocate();
+    _recorded.allocator()->allocate();
+    _l1_stack.allocator()->allocate();
+    _l1_list_counter.allocator()->allocate();
+    _nonmax.allocator()->allocate();
+}
+
+void CLCannyEdge::run()
+{
+    // Run sobel
+    _sobel->run();
+
+    // Run phase and magnitude calculation
+    CLScheduler::get().enqueue(_gradient, false);
+
+    // Fill border before non-maxima suppression. Nop for border mode undefined.
+    CLScheduler::get().enqueue(_border_mag_gradient, false);
+
+    // Run non max suppresion
+    _nonmax.clear(CLScheduler::get().queue());
+    CLScheduler::get().enqueue(_non_max_suppr, false);
+
+    // Clear temporary structures and run edge trace
+    _visited.clear(CLScheduler::get().queue());
+    _recorded.clear(CLScheduler::get().queue());
+    _l1_list_counter.clear(CLScheduler::get().queue());
+    _l1_stack.clear(CLScheduler::get().queue());
+    CLScheduler::get().enqueue(_edge_trace, true);
+}