COMPMID-814: Add validate method to scale.

Change-Id: I5004c79ac7b10f988f25e14847f1ea2be01629da
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/131143
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/arm_compute/runtime/NEON/functions/NEScale.h b/arm_compute/runtime/NEON/functions/NEScale.h
index 1d96db3ffc..9b5a12bece 100644
--- a/arm_compute/runtime/NEON/functions/NEScale.h
+++ b/arm_compute/runtime/NEON/functions/NEScale.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2017 ARM Limited.
+ * Copyright (c) 2016-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -47,7 +47,7 @@ public:
     NEScale();
     /** Initialize the function's source, destination, interpolation type and border_mode.
      *
-     * @param[in, out] input                 Source tensor. Data type supported: U8/F32. (Written to only for @p border_mode != UNDEFINED)
+     * @param[in, out] input                 Source tensor. Data type supported: U8/S16/F32. (Written to only for @p border_mode != UNDEFINED)
      * @param[out]     output                Destination tensor. Data type supported: Same as @p input. All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane.
      * @param[in]      policy                The interpolation type.
      * @param[in]      border_mode           Strategy to use for borders.
@@ -56,6 +56,19 @@ public:
      */
     void configure(ITensor *input, ITensor *output, InterpolationPolicy policy, BorderMode border_mode, PixelValue constant_border_value = PixelValue(),
                    SamplingPolicy sampling_policy = SamplingPolicy::CENTER);
+    /** 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/F32. (Written to only for @p border_mode != UNDEFINED)
+     * @param[in] output                Destination tensor. Data type supported: Same as @p input. All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane.
+     * @param[in] policy                The interpolation type.
+     * @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
+     *
+     * @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);
 
     // Inherited methods overridden:
     void run() override;