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>

1 files changed, 88 insertions, 0 deletions

diff --git a/arm_compute/core/CL/kernels/CLCropKernel.h b/arm_compute/core/CL/kernels/CLCropKernel.h
new file mode 100644
index 0000000000..ff4b13f865
--- /dev/null
+++ b/arm_compute/core/CL/kernels/CLCropKernel.h
@@ -0,0 +1,88 @@
+/*
+ * 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_CLCROPKERNEL_H__
+#define __ARM_COMPUTE_CLCROPKERNEL_H__
+
+#include "arm_compute/core/CL/ICLKernel.h"
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+class ICLTensor;
+
+/** OpenCL kernel to perform a copy between two tensors */
+class CLCropKernel : public ICLKernel
+{
+public:
+    /** Default constructor */
+    CLCropKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers). */
+    CLCropKernel(const CLCropKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers). */
+    CLCropKernel &operator=(const CLCropKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    CLCropKernel(CLCropKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    CLCropKernel &operator=(CLCropKernel &&) = default;
+    /** Configure kernel
+     *
+     * @note Supported tensor rank: up to 4
+     *
+     * @param[in]  input               Source tensor. Data type supported: U16/S16/U32/S32/F16/F32. Data layouts supported: NHWC.
+     * @param[out] output              Destination tensor. Data type supported: F32
+     * @param[in]  start               Coordinates of where to start cropping the image.
+     * @param[in]  end                 Coordinates of where to end cropping the image.
+     * @param[in]  batch_index         Fourth dimension index of the 3D image to crop in @p input.
+     * @param[in]  extrapolation_value Value to be used for values outside of the image. Default is 0.
+     * @param[in]  output_window       Output window to be used in case cropped image is being copied into a tensor. Default is nullptr.
+     */
+    void configure(const ICLTensor *input, ICLTensor *output, Coordinates2D start, Coordinates2D end, uint32_t batch_index, float extrapolation_value = 0, Window *output_window = nullptr);
+
+    /** Static function to check if given info will lead to a valid configuration of @ref CLStridedSliceKernel
+     *
+     * @note Supported tensor rank: up to 4
+     *
+     * @param[in] input               Source tensor info. Data type supported: U16/S16/U32/S32/F16/F32. Data layouts supported: NHWC.
+     * @param[in] output              Destination tensor info. Data type supported: F32
+     * @param[in] start               Coordinates of where to start cropping the image.
+     * @param[in] end                 Coordinates of where to end cropping the image.
+     * @param[in] batch_index         Fourth dimension index of the 3D image to crop in @p input.
+     * @param[in] extrapolation_value Value to be used for values outside of the image. Default is 0.
+     * @param[in] output_window       Output window to be used in case cropped image is being copied into a tensor. Default is nullptr.
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, Coordinates2D start, Coordinates2D end, uint32_t batch_index, float extrapolation_value = 0,
+                           Window *output_window = nullptr);
+
+    // Inherited methods overridden:
+    void run(const Window &window, cl::CommandQueue &queue) override;
+
+private:
+    const ICLTensor *_input;
+    ICLTensor       *_output;
+    Coordinates2D    _start;
+    uint32_t         _batch_index;
+    float            _extrapolation_value;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_CLCROPKERNEL_H__ */