COMPMID-358 Implement OpenCL ROI Pooling

* Implement OpenCL ROI Pooling
* Add CLROIPoolingLayer benchmarks

Change-Id: I8786d01d551850a1b4d599a48fabe3925e0a27d0
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/79833
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/arm_compute/core/CL/kernels/CLROIPoolingLayerKernel.h b/arm_compute/core/CL/kernels/CLROIPoolingLayerKernel.h
new file mode 100644
index 0000000000..51aae30561
--- /dev/null
+++ b/arm_compute/core/CL/kernels/CLROIPoolingLayerKernel.h
@@ -0,0 +1,76 @@
+/*
+ * 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.
+ */
+#ifndef __ARM_COMPUTE_CLROIPOOLINGLAYERKERNEL_H__
+#define __ARM_COMPUTE_CLROIPOOLINGLAYERKERNEL_H__
+
+#include "arm_compute/core/CL/ICLKernel.h"
+
+#include "arm_compute/core/CL/ICLArray.h"
+
+namespace arm_compute
+{
+class ICLTensor;
+
+/** Interface for the ROI pooling layer kernel */
+class CLROIPoolingLayerKernel : public ICLKernel
+{
+public:
+    /** Default constructor */
+    CLROIPoolingLayerKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLROIPoolingLayerKernel(const CLROIPoolingLayerKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    CLROIPoolingLayerKernel &operator=(const CLROIPoolingLayerKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    CLROIPoolingLayerKernel(CLROIPoolingLayerKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    CLROIPoolingLayerKernel &operator=(CLROIPoolingLayerKernel &&) = default;
+    /** Default destructor */
+    ~CLROIPoolingLayerKernel() = default;
+
+    /** Set the input and output tensors.
+     *
+     * @param[in]  input     Source tensor. Data types supported: F16/F32.
+     * @param[in]  rois      Array containing @ref ROI.
+     * @param[out] output    Destination tensor. Data types supported: Same as @p input.
+     * @param[in]  pool_info Contains pooling operation information described in @ref ROIPoolingLayerInfo.
+     *
+     * @note The x and y dimensions of @p output tensor must be the same as @p pool_info 's pooled
+     * width and pooled height.
+     * @note The z dimensions of @p output tensor and @p input tensor must be the same.
+     * @note The fourth dimension of @p output tensor must be the same as the number of elements in @p rois array.
+     */
+    void configure(const ICLTensor *input, const ICLROIArray *rois, ICLTensor *output, const ROIPoolingLayerInfo &pool_info);
+
+    // Inherited methods overridden:
+    void run(const Window &window, cl::CommandQueue &queue) override;
+
+private:
+    const ICLTensor    *_input;
+    const ICLROIArray *_rois;
+    ICLTensor          *_output;
+    ROIPoolingLayerInfo _pool_info;
+};
+}
+#endif /*__ARM_COMPUTE_CLROIPOOLINGLAYERKERNEL_H__ */