arm_compute v19.02

Change-Id: I853a3ecf38f206da13c1b03640c8adf73c20477c
diff --git a/arm_compute/runtime/CPP/CPPFunctions.h b/arm_compute/runtime/CPP/CPPFunctions.h
index 9c17d9e..4bb668f 100644
--- a/arm_compute/runtime/CPP/CPPFunctions.h
+++ b/arm_compute/runtime/CPP/CPPFunctions.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2018 ARM Limited.
+ * Copyright (c) 2017-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -26,7 +26,9 @@
 
 /* Header regrouping all the CPP functions */
 #include "arm_compute/runtime/CPP/functions/CPPBoxWithNonMaximaSuppressionLimit.h"
+#include "arm_compute/runtime/CPP/functions/CPPDetectionOutputLayer.h"
 #include "arm_compute/runtime/CPP/functions/CPPPermute.h"
+#include "arm_compute/runtime/CPP/functions/CPPTopKV.h"
 #include "arm_compute/runtime/CPP/functions/CPPUpsample.h"
 
 #endif /* __ARM_COMPUTE_CPPFUNCTIONS_H__ */
diff --git a/arm_compute/runtime/CPP/functions/CPPDetectionOutputLayer.h b/arm_compute/runtime/CPP/functions/CPPDetectionOutputLayer.h
new file mode 100644
index 0000000..8c610f3
--- /dev/null
+++ b/arm_compute/runtime/CPP/functions/CPPDetectionOutputLayer.h
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2018-2019 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.
+ */
+#ifndef __ARM_COMPUTE_CPP_DETECTION_OUTPUT_LAYER_H__
+#define __ARM_COMPUTE_CPP_DETECTION_OUTPUT_LAYER_H__
+
+#include "arm_compute/runtime/CPP/ICPPSimpleFunction.h"
+
+#include "arm_compute/core/Types.h"
+
+#include <map>
+
+namespace arm_compute
+{
+class ITensor;
+
+// Normalized Bounding Box [xmin, ymin, xmax, ymax]
+using NormalizedBBox = std::array<float, 4>;
+// LabelBBox used for map label and bounding box
+using LabelBBox = std::map<int, std::vector<NormalizedBBox>>;
+
+/** CPP Function to perform non maximum suppression on the bounding boxes and scores
+ *
+ */
+class CPPNonMaximumSuppression : public IFunction
+{
+public:
+    /** Default constructor */
+    CPPNonMaximumSuppression();
+    /** Configure the function to perform non maximal suppression
+     *
+     * @param[in]  bboxes          The input bounding boxes. Data types supported: F32.
+     * @param[in]  scores          The corresponding input confidence. Same as @p scores.
+     * @param[out] indices         The kept indices of bboxes after nms. Data types supported: S32.
+     * @param[in]  max_output_size An integer tensor representing the maximum number of boxes to be selected by non max suppression.
+     * @param[in]  score_threshold The threshold used to filter detection results.
+     * @param[in]  nms_threshold   The threshold used in non maximum suppression.
+     *
+     */
+    void configure(const ITensor *bboxes, const ITensor *scores, ITensor *indices, unsigned int max_output_size, const float score_threshold, const float nms_threshold);
+
+    /** Static function to check if given arguments will lead to a valid configuration of @ref CPPNonMaximumSuppression
+     *
+     * @param[in]  bboxes          The input bounding boxes. Data types supported: F32.
+     * @param[in]  scores          The corresponding input confidence. Same as @p scores.
+     * @param[out] indices         The kept indices of bboxes after nms. Data types supported: S32.
+     * @param[in]  max_output_size An integer tensor representing the maximum number of boxes to be selected by non max suppression.
+     * @param[in]  score_threshold The threshold used to filter detection results.
+     * @param[in]  nms_threshold   The threshold used in non maximum suppression.
+     *
+     */
+    static Status validate(const ITensorInfo *bboxes, const ITensorInfo *scores, const ITensorInfo *indices, unsigned int max_output_size,
+                           const float score_threshold, const float nms_threshold);
+
+    // Inherited methods overridden:
+    void run() override;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CPPNonMaximumSuppression(const CPPNonMaximumSuppression &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CPPNonMaximumSuppression &operator=(const CPPNonMaximumSuppression &) = delete;
+
+private:
+    const ITensor *_bboxes;
+    const ITensor *_scores;
+    ITensor       *_indices;
+    unsigned int   _max_output_size;
+
+    float _score_threshold;
+    float _nms_threshold;
+};
+
+/** CPP Function to generate the detection output based on location and confidence
+ * predictions by doing non maximum suppression.
+ *
+ * @note Intended for use with MultiBox detection method.
+ */
+class CPPDetectionOutputLayer : public IFunction
+{
+public:
+    /** Default constructor */
+    CPPDetectionOutputLayer();
+    /** Configure the detection output layer CPP kernel
+     *
+     * @param[in]  input_loc      The mbox location input tensor of size [C1, N]. Data types supported: F32.
+     * @param[in]  input_conf     The mbox confidence input tensor of size [C2, N]. Data types supported: F32.
+     * @param[in]  input_priorbox The mbox prior box input tensor of size [C3, 2, N]. Data types supported: F32.
+     * @param[out] output         The output tensor of size [7, M]. Data types supported: Same as @p input
+     * @param[in]  info           (Optional) DetectionOutputLayerInfo information.
+     *
+     * @note Output contains all the detections. Of those, only the ones selected by the valid region are valid.
+     */
+    void configure(const ITensor *input_loc, const ITensor *input_conf, const ITensor *input_priorbox, ITensor *output, DetectionOutputLayerInfo info = DetectionOutputLayerInfo());
+    /** Static function to check if given info will lead to a valid configuration of @ref CPPDetectionOutputLayer
+     *
+     * @param[in] input_loc      The mbox location input tensor info. Data types supported: F32.
+     * @param[in] input_conf     The mbox confidence input tensor info. Data types supported: F32.
+     * @param[in] input_priorbox The mbox prior box input tensor info. Data types supported: F32.
+     * @param[in] output         The output tensor info. Data types supported: Same as @p input
+     * @param[in] info           (Optional) DetectionOutputLayerInfo information.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input_loc, const ITensorInfo *input_conf, const ITensorInfo *input_priorbox, const ITensorInfo *output,
+                           DetectionOutputLayerInfo info = DetectionOutputLayerInfo());
+    // Inherited methods overridden:
+    void run() override;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CPPDetectionOutputLayer(const CPPDetectionOutputLayer &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CPPDetectionOutputLayer &operator=(const CPPDetectionOutputLayer &) = delete;
+
+private:
+    const ITensor           *_input_loc;
+    const ITensor           *_input_conf;
+    const ITensor           *_input_priorbox;
+    ITensor                 *_output;
+    DetectionOutputLayerInfo _info;
+
+    int _num_priors;
+    int _num;
+
+    std::vector<LabelBBox> _all_location_predictions;
+    std::vector<std::map<int, std::vector<float>>> _all_confidence_scores;
+    std::vector<NormalizedBBox> _all_prior_bboxes;
+    std::vector<std::array<float, 4>> _all_prior_variances;
+    std::vector<LabelBBox> _all_decode_bboxes;
+    std::vector<std::map<int, std::vector<int>>> _all_indices;
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_CPP_DETECTION_OUTPUT_LAYER_H__ */
diff --git a/arm_compute/runtime/CPP/functions/CPPTopKV.h b/arm_compute/runtime/CPP/functions/CPPTopKV.h
new file mode 100644
index 0000000..10917be
--- /dev/null
+++ b/arm_compute/runtime/CPP/functions/CPPTopKV.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+#ifndef __ARM_COMPUTE_CPPTOPKV_H__
+#define __ARM_COMPUTE_CPPTOPKV_H__
+
+#include "arm_compute/runtime/CPP/ICPPSimpleFunction.h"
+
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Basic function to run @ref CPPTopKVKernel */
+class CPPTopKV : public ICPPSimpleFunction
+{
+public:
+    /** Set the input and output of the kernel.
+     *
+     * @param[in]  predictions A batch_size x classes tensor. Data types supported: F16/S32/F32/QASYMM8
+     * @param[in]  targets     A batch_size 1D tensor of class ids. Data types supported: S32
+     * @param[out] output      Computed precision at @p k as a bool 1D tensor. Data types supported: U8
+     * @param[in]  k           Number of top elements to look at for computing precision.
+     */
+    void configure(const ITensor *predictions, const ITensor *targets, ITensor *output, const unsigned int k);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref CPPTopKVKernel
+     *
+     * @param[in] predictions A batch_size x classes tensor info. Data types supported: F16/S32/F32/QASYMM8
+     * @param[in] targets     A batch_size 1D tensor info of class ids. Data types supported: S32
+     * @param[in] output      Computed precision at @p k as a bool 1D tensor info. Data types supported: U8
+     * @param[in] k           Number of top elements to look at for computing precision.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *predictions, const ITensorInfo *targets, ITensorInfo *output, const unsigned int k);
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_CPPTOPKV_H__ */