MLCE-166: Add support for extracting indices in NEPoolingLayer 2x2 NCHW

 * Added initial support for pooling indices
 * Only supported for NCHW Poolsize 2

Change-Id: I92ce767e64fcc01aae89411064b4cb2be272a1e9
Signed-off-by: morgolock <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/2927
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/arm_compute/core/GLES_COMPUTE/kernels/GCPoolingLayerKernel.h b/arm_compute/core/GLES_COMPUTE/kernels/GCPoolingLayerKernel.h
index 85c051c326..7a2fb84f34 100644
--- a/arm_compute/core/GLES_COMPUTE/kernels/GCPoolingLayerKernel.h
+++ b/arm_compute/core/GLES_COMPUTE/kernels/GCPoolingLayerKernel.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 ARM Limited.
+ * Copyright (c) 2017-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -54,18 +54,20 @@ public:
      * @param[in]  input     Source tensor. Data types supported: F16/F32.
      * @param[out] output    Destination tensor. Data types supported: Same as @p input.
      * @param[in]  pool_info Contains pooling operation information described in @ref PoolingLayerInfo.
+     * @param[out] indices   (optional) The indices of the maximal values. Data type supported: U32.
      */
-    void configure(const IGCTensor *input, IGCTensor *output, const PoolingLayerInfo &pool_info);
+    void configure(const IGCTensor *input, IGCTensor *output, const PoolingLayerInfo &pool_info, IGCTensor *indices = nullptr);
 
     /** Static function to check if given info will lead to a valid configuration of @ref GCPoolingLayerKernel
      *
      * @param[in] input     Source tensor info. Data types supported: F16/F32.
      * @param[in] output    Destination tensor info. Data types supported: Same as @p input.
      * @param[in] pool_info Contains pooling operation information described in @ref PoolingLayerInfo.
+     * @param[in] indices   (optional) The indices of the maximal values. Data type supported: U32.
      *
      * @return a status
      */
-    static Status validate(const ITensorInfo *input, const ITensorInfo *output, const PoolingLayerInfo &pool_info);
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, const PoolingLayerInfo &pool_info, const ITensorInfo *indices = nullptr);
 
     // Inherited methods overridden:
     void run(const Window &window) override;
@@ -74,6 +76,7 @@ public:
 private:
     const IGCTensor *_input;
     IGCTensor       *_output;
+    IGCTensor       *_indices;
     PoolingLayerInfo _pool_info;
     BorderSize       _border_size;
     unsigned int     _num_elems_processed_per_iteration;