COMPMID-1844: Implement CLCrop

Change-Id: I8822c37adc45960705dc3f32a53214795ba3cf39
Signed-off-by: George Wort <george.wort@arm.com>
Reviewed-on: https://review.mlplatform.org/c/789
Reviewed-by: Manuel Bottini <manuel.bottini@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez <pablo.tello@arm.com>

2 files changed, 115 insertions, 0 deletions

diff --git a/arm_compute/runtime/CL/CLFunctions.h b/arm_compute/runtime/CL/CLFunctions.h
index 686d266557..42897a6e23 100644
--- a/arm_compute/runtime/CL/CLFunctions.h
+++ b/arm_compute/runtime/CL/CLFunctions.h
@@ -50,6 +50,7 @@
 #include "arm_compute/runtime/CL/functions/CLConvolution.h"
 #include "arm_compute/runtime/CL/functions/CLConvolutionLayer.h"
 #include "arm_compute/runtime/CL/functions/CLCopy.h"
+#include "arm_compute/runtime/CL/functions/CLCropResize.h"
 #include "arm_compute/runtime/CL/functions/CLDeconvolutionLayer.h"
 #include "arm_compute/runtime/CL/functions/CLDeconvolutionLayerUpsample.h"
 #include "arm_compute/runtime/CL/functions/CLDepthConcatenateLayer.h"
diff --git a/arm_compute/runtime/CL/functions/CLCropResize.h b/arm_compute/runtime/CL/functions/CLCropResize.h
new file mode 100644
index 0000000000..d6c9fed928
--- /dev/null
+++ b/arm_compute/runtime/CL/functions/CLCropResize.h
@@ -0,0 +1,114 @@
+/*
+ * 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_CL_CROP_RESIZE_H__
+#define __ARM_COMPUTE_CL_CROP_RESIZE_H__
+
+#include "arm_compute/core/CL/ICLTensor.h"
+#include "arm_compute/core/CL/kernels/CLCopyKernel.h"
+#include "arm_compute/core/CL/kernels/CLCropKernel.h"
+#include "arm_compute/core/CL/kernels/CLMemsetKernel.h"
+#include "arm_compute/runtime/CL/CLTensor.h"
+#include "arm_compute/runtime/CL/functions/CLScale.h"
+
+#include <cstdint>
+#include <memory>
+
+namespace arm_compute
+{
+// Forward Declarations
+class ITensor;
+
+/** Function to perform cropping and resizing */
+class CLCropResize : public IFunction
+{
+public:
+    /** Default constructor */
+    CLCropResize();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLCropResize(const CLCropResize &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLCropResize &operator=(const CLCropResize &) = delete;
+    /** Allow instances of this class to be moved */
+    CLCropResize(CLCropResize &&) = default;
+    /** Allow instances of this class to be moved */
+    CLCropResize &operator=(CLCropResize &&) = default;
+    /** Default destructor */
+    virtual ~CLCropResize() = 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: 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 ICLTensor *input, ICLTensor *boxes, ICLTensor *box_ind, ICLTensor *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 info 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, ITensorInfo *boxes, ITensorInfo *box_ind, const ITensorInfo *output,
+                           Coordinates2D crop_size, InterpolationPolicy method, float extrapolation_value);
+
+    void run() override;
+
+    const ICLTensor    *_input;
+    ICLTensor          *_boxes;
+    ICLTensor          *_box_ind;
+    ICLTensor          *_output;
+    size_t              _num_boxes;
+    InterpolationPolicy _method;
+    float               _extrapolation_value;
+
+    std::unique_ptr<CLScale[]>      _scale;
+    std::unique_ptr<CLCopyKernel[]> _copy;
+    std::unique_ptr<CLTensor[]>     _crop_results{ nullptr };
+    std::unique_ptr<CLTensor[]>     _scaled_results{ nullptr };
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_CL_CROP_RESIZE_H__ */