COMPMID-582: Add validation to channel_extract kernels.

Change-Id: I6413a05f6870a0d04f12d7348269b15297ae8493
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/114696
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 33 insertions, 1 deletions

diff --git a/arm_compute/core/Validate.h b/arm_compute/core/Validate.h
index 4ef0e11433..b04d293c4c 100644
--- a/arm_compute/core/Validate.h
+++ b/arm_compute/core/Validate.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2017 ARM Limited.
+ * Copyright (c) 2016-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -271,6 +271,38 @@ arm_compute::Status error_on_mismatching_dimensions(const char *function, const
 #define ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DIMENSIONS(...) \
     ARM_COMPUTE_RETURN_ON_ERROR(::arm_compute::error_on_mismatching_dimensions(__func__, __FILE__, __LINE__, __VA_ARGS__))
 
+/** Return an error if the passed tensor objects are not even.
+ *
+ * @param[in] function Function in which the error occurred.
+ * @param[in] file     Name of the file where the error occurred.
+ * @param[in] line     Line on which the error occurred.
+ * @param[in] format   Format to check if odd shape is allowed
+ * @param[in] tensor1  The first object to be compared for odd shape.
+ * @param[in] tensors  (Optional) Further allowed objects.
+ *
+ * @return Status
+ */
+template <typename... Ts>
+arm_compute::Status error_on_tensors_not_even(const char *function, const char *file, int line,
+                                              const Format &format, const ITensor *tensor1, Ts... tensors)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_LOC(tensor1 == nullptr, function, file, line);
+    ARM_COMPUTE_RETURN_ON_ERROR(::arm_compute::error_on_nullptr(function, file, line, std::forward<Ts>(tensors)...));
+    const std::array < const ITensor *, 1 + sizeof...(Ts) > tensors_info_array{ { tensor1, std::forward<Ts>(tensors)... } };
+    ARM_COMPUTE_RETURN_ERROR_ON_LOC_MSG(std::any_of(tensors_info_array.cbegin(), tensors_info_array.cend(), [&](const ITensor * tensor)
+    {
+        const TensorShape correct_shape = adjust_odd_shape(tensor->info()->tensor_shape(), format);
+        return detail::have_different_dimensions(tensor->info()->tensor_shape(), correct_shape, 2);
+    }),
+    function, file, line, "Tensor shape has odd dimensions");
+    return arm_compute::Status{};
+}
+
+#define ARM_COMPUTE_ERROR_ON_TENSORS_NOT_EVEN(...) \
+    ARM_COMPUTE_ERROR_THROW_ON(::arm_compute::error_on_tensors_not_even(__func__, __FILE__, __LINE__, __VA_ARGS__))
+#define ARM_COMPUTE_RETURN_ERROR_ON_TENSORS_NOT_EVEN(...) \
+    ARM_COMPUTE_RETURN_ON_ERROR(::arm_compute::error_on_tensors_not_even(__func__, __FILE__, __LINE__, __VA_ARGS__))
+
 /** Return an error if the passed two tensor infos have different shapes from the given dimension
  *
  * @param[in] function      Function in which the error occurred.