COMPMID-1843: Implement NECrop

Change-Id: I27e8b1a00c2315c72106e8e596f84ad48fb770e3
Signed-off-by: George Wort <george.wort@arm.com>
Reviewed-on: https://review.mlplatform.org/c/648
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez <pablo.tello@arm.com>

3 files changed, 114 insertions, 3 deletions

diff --git a/arm_compute/runtime/NEON/NEFunctions.h b/arm_compute/runtime/NEON/NEFunctions.h
index 15ce4e3d66..432c751308 100644
--- a/arm_compute/runtime/NEON/NEFunctions.h
+++ b/arm_compute/runtime/NEON/NEFunctions.h
@@ -49,6 +49,7 @@
 #include "arm_compute/runtime/NEON/functions/NEConvolution.h"
 #include "arm_compute/runtime/NEON/functions/NEConvolutionLayer.h"
 #include "arm_compute/runtime/NEON/functions/NECopy.h"
+#include "arm_compute/runtime/NEON/functions/NECropResize.h"
 #include "arm_compute/runtime/NEON/functions/NEDeconvolutionLayer.h"
 #include "arm_compute/runtime/NEON/functions/NEDepthConcatenateLayer.h"
 #include "arm_compute/runtime/NEON/functions/NEDepthConvertLayer.h"
diff --git a/arm_compute/runtime/NEON/functions/NECropResize.h b/arm_compute/runtime/NEON/functions/NECropResize.h
new file mode 100644
index 0000000000..e790e68b5f
--- /dev/null
+++ b/arm_compute/runtime/NEON/functions/NECropResize.h
@@ -0,0 +1,107 @@
+/*
+ * 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_NEON_CROP_RESIZE_H__
+#define __ARM_COMPUTE_NEON_CROP_RESIZE_H__
+
+#include "arm_compute/core/NEON/kernels/NECropKernel.h"
+#include "arm_compute/runtime/NEON/functions/NEScale.h"
+
+#include <cstdint>
+#include <memory>
+
+namespace arm_compute
+{
+// Forward Declarations
+class ITensor;
+
+/** Function to perform cropping and resizing */
+class NECropResize : public IFunction
+{
+public:
+    /** Default constructor */
+    NECropResize();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NECropResize(const NECropResize &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NECropResize &operator=(const NECropResize &) = delete;
+    /** Allow instances of this class to be moved */
+    NECropResize(NECropResize &&) = default;
+    /** Allow instances of this class to be moved */
+    NECropResize &operator=(NECropResize &&) = default;
+    /** Default destructor */
+    virtual ~NECropResize() = default;
+
+    /** Configure kernel
+     *
+     * @note Supported tensor rank: up to 4
+     * @note Box indices may be outside of the bounds, in which case @p extrapolation_value is used.
+     * @note Start and end indices of boxes are inclusive.
+     *
+     * @param[in]  input               Source tensor containing N batches of 3D images to be cropped. Data type supported: U16/S16/U32/S32/F16/F32
+     * @param[in]  boxes               Tensor containing the boxes used to crop the images. Data type supported: F32
+     * @param[in]  box_ind             One dimensional tensor containing the batch index of the 3D image in @p input that the corresponding
+     *                                 box in @p boxes will be applied to. Data type supported: F32
+     * @param[out] output              Destination tensor containing a cropped and resized image for each box in @p boxes. Data type supported: F32
+     * @param[in]  crop_size           The dimensions that each cropped image will be resized to.
+     * @param[in]  method              The policy to be used when resizing image. Default is bilinear.
+     * @param[in]  extrapolation_value Value to be used for values outside of the image for cropping and resizing. Default is 0.
+     */
+    void configure(const ITensor *input, const ITensor *boxes, const ITensor *box_ind, ITensor *output, Coordinates2D crop_size,
+                   InterpolationPolicy method = InterpolationPolicy::BILINEAR, float extrapolation_value = 0);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref NESlice
+     *
+     * @note Supported tensor rank: up to 4
+     * @note Box indices may be outside of the bounds, in which case @p extrapolation_value is used.
+     * @note Start and end indices of boxes are inclusive.
+     *
+     * @param[in] input               Source tensor containing N batches of 3D images to be cropped. Data type supported: U16/S16/U32/S32/F16/F32
+     * @param[in] boxes               Tensor info for the tensor containing the boxes used to crop the images. Data type supported: F32
+     * @param[in] box_ind             Tensor info for the one dimensional tensor containing the batch index of the 3D image in @p input
+     *                                that the corresponding box in @p boxes will be applied to. Data type supported: F32
+     * @param[in] output              Tensor info for the destination tensor containing a cropped and resized image for each box in @p boxes.
+     *                                Data type supported: F32
+     * @param[in] crop_size           The dimensions that each cropped image will be resized to.
+     * @param[in] method              The policy to be used when resizing image. Default is bilinear.
+     * @param[in] extrapolation_value Value to be used for values outside of the image for cropping and resizing. Default is 0.
+     *
+     * @return A status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *boxes, const ITensorInfo *box_ind, const ITensorInfo *output,
+                           Coordinates2D crop_size, InterpolationPolicy method, float extrapolation_value);
+
+    void run() override;
+
+    ITensor            *_output;
+    size_t              _num_boxes;
+    InterpolationPolicy _method;
+    float               _extrapolation_value;
+
+    std::unique_ptr<NECropKernel[]> _crop;
+    std::unique_ptr<NEScale[]>      _scale;
+    std::unique_ptr<Tensor[]>       _crop_results{ nullptr };
+    std::unique_ptr<Tensor[]>       _scaled_results{ nullptr };
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_NEON_CROP_RESIZE_H__ */
diff --git a/arm_compute/runtime/NEON/functions/NEScale.h b/arm_compute/runtime/NEON/functions/NEScale.h
index d59e3cccb6..d7dfbbfc9f 100644
--- a/arm_compute/runtime/NEON/functions/NEScale.h
+++ b/arm_compute/runtime/NEON/functions/NEScale.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -53,9 +53,10 @@ public:
      * @param[in]      border_mode           Strategy to use for borders.
      * @param[in]      constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT.
      * @param[in]      sampling_policy       (Optional) Sampling policy used by the interpolation. Defaults to @ref SamplingPolicy::CENTER
+     * @param[in]      use_padding           (Optional) Is padding in use or not. Defaults to true.
      */
     void configure(ITensor *input, ITensor *output, InterpolationPolicy policy, BorderMode border_mode, PixelValue constant_border_value = PixelValue(),
-                   SamplingPolicy sampling_policy = SamplingPolicy::CENTER);
+                   SamplingPolicy sampling_policy = SamplingPolicy::CENTER, bool use_padding = true);
     /** Static function to check if given info will lead to a valid configuration of @ref NEScale
      *
      * @param[in] input                 Source tensor. Data type supported: U8/S16/F16/F32. (Written to only for @p border_mode != UNDEFINED)
@@ -64,11 +65,12 @@ public:
      * @param[in] border_mode           Strategy to use for borders.
      * @param[in] constant_border_value (Optional) Constant value to use for borders if border_mode is set to CONSTANT.
      * @param[in] sampling_policy       (Optional) Sampling policy used by the interpolation. Defaults to @ref SamplingPolicy::CENTER
+     * @param[in] use_padding           (Optional) Is padding in use or not. Defaults to true.
      *
      * @return a status
      */
     static Status validate(const ITensorInfo *input, const ITensorInfo *output, InterpolationPolicy policy, BorderMode border_mode,
-                           PixelValue constant_border_value = PixelValue(), SamplingPolicy sampling_policy = SamplingPolicy::CENTER);
+                           PixelValue constant_border_value = PixelValue(), SamplingPolicy sampling_policy = SamplingPolicy::CENTER, bool use_padding = true);
 
     // Inherited methods overridden:
     void run() override;
@@ -79,6 +81,7 @@ private:
     Tensor             _dy;             /**< Element's distance between the Y real coordinate and the smallest Y following integer */
     NEScaleKernel      _scale_kernel;   /**< Kernel to perform the scaling */
     NEFillBorderKernel _border_handler; /**< kernel to handle tensor borders */
+    bool               _use_padding;    /**< Is padding used on the tensors */
 };
 }
 #endif /*__ARM_COMPUTE_NESCALEIMAGE_H__ */