Add basic Operator interface

- C facing interfaces
- Activation layer descriptor

Partially Resolves: COMPMID-4512

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: I8530748fff178ca46d61bf2e40d3e543e93f340b
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5908
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/arm_compute/AclDescriptors.h b/arm_compute/AclDescriptors.h
new file mode 100644
index 0000000000..7b7655e9c7
--- /dev/null
+++ b/arm_compute/AclDescriptors.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2021 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_ACL_DESCRIPTORS_H_
+#define ARM_COMPUTE_ACL_DESCRIPTORS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif /** __cplusplus */
+
+/**< Supported activation types */
+typedef enum
+{
+    AclActivationTypeNone = 0,  /**< No activation */
+    AclIdentity           = 1,  /**< Identity */
+    AclLogistic           = 2,  /**< Logistic */
+    AclTanh               = 3,  /**< Hyperbolic tangent */
+    AclRelu               = 4,  /**< Rectifier */
+    AclBoundedRelu        = 5,  /**< Upper Bounded Rectifier */
+    AclLuBoundedRelu      = 6,  /**< Lower and Upper Bounded Rectifier */
+    AclLeakyRelu          = 7,  /**< Leaky Rectifier */
+    AclSoftRelu           = 8,  /**< Soft Rectifier */
+    AclSoftElu            = 9,  /**< Exponential Linear Unit */
+    AclAbs                = 10, /**< Absolute */
+    AclSquare             = 11, /**< Square */
+    AclSqrt               = 12, /**< Square root */
+    AclLinear             = 13, /**< Linear */
+    AclHardSwish          = 14, /**< Hard-swish */
+} AclActivationType;
+
+/**< Activation layer descriptor */
+typedef struct
+{
+    AclActivationType type; /**< Activation type */
+    float             a;    /**< Factor &alpha used by some activations */
+    float             b;    /**< Factor &beta used by some activations */
+} AclActivationDescriptor;
+#ifdef __cplusplus
+}
+#endif /** __cplusplus */
+#endif /* ARM_COMPUTE_ACL_DESCRIPTORS_H_ */