COMPMID-1999: Add support for GenerateProposals operator in CL

Change-Id: Ie08a6874347085f96b00f25bdb605eee7d683c25
Signed-off-by: giuros01 <giuseppe.rossini@arm.com>
Reviewed-on: https://review.mlplatform.org/719
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/tests/validation/fixtures/ComputeAllAnchorsFixture.h b/tests/validation/fixtures/ComputeAllAnchorsFixture.h
new file mode 100644
index 0000000..bfa43ce
--- /dev/null
+++ b/tests/validation/fixtures/ComputeAllAnchorsFixture.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2019 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_TEST_COMPUTEALLANCHORS_FIXTURE
+#define ARM_COMPUTE_TEST_COMPUTEALLANCHORS_FIXTURE
+
+#include "arm_compute/core/TensorShape.h"
+#include "arm_compute/core/Types.h"
+#include "tests/AssetsLibrary.h"
+#include "tests/Globals.h"
+#include "tests/IAccessor.h"
+#include "tests/framework/Asserts.h"
+#include "tests/framework/Fixture.h"
+#include "tests/validation/Helpers.h"
+#include "tests/validation/reference/ComputeAllAnchors.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+template <typename TensorType, typename AccessorType, typename FunctionType, typename T>
+class ComputeAllAnchorsFixture : public framework::Fixture
+{
+public:
+    template <typename...>
+    void setup(size_t num_anchors, const ComputeAnchorsInfo &info, DataType data_type)
+    {
+        _target    = compute_target(num_anchors, data_type, info);
+        _reference = compute_reference(num_anchors, data_type, info);
+    }
+
+protected:
+    template <typename U>
+    void fill(U &&tensor)
+    {
+        library->fill_tensor_uniform(tensor, 0, T(0), T(100));
+    }
+
+    TensorType compute_target(size_t num_anchors, DataType data_type, const ComputeAnchorsInfo &info)
+    {
+        // Create tensors
+        TensorShape anchors_shape(4, num_anchors);
+        TensorType  anchors = create_tensor<TensorType>(anchors_shape, data_type);
+        TensorType  all_anchors;
+
+        // Create and configure function
+        FunctionType compute_all_anchors;
+        compute_all_anchors.configure(&anchors, &all_anchors, info);
+
+        ARM_COMPUTE_EXPECT(all_anchors.info()->is_resizable(), framework::LogLevel::ERRORS);
+
+        // Allocate tensors
+        all_anchors.allocator()->allocate();
+        anchors.allocator()->allocate();
+
+        ARM_COMPUTE_EXPECT(!all_anchors.info()->is_resizable(), framework::LogLevel::ERRORS);
+
+        // Fill tensors
+        fill(CLAccessor(anchors));
+
+        // Compute function
+        compute_all_anchors.run();
+
+        return all_anchors;
+    }
+
+    SimpleTensor<T> compute_reference(size_t                    num_anchors,
+                                      DataType                  data_type,
+                                      const ComputeAnchorsInfo &info)
+    {
+        // Create reference tensor
+        SimpleTensor<T> anchors(TensorShape(4, num_anchors), data_type);
+
+        // Fill reference tensor
+        fill(anchors);
+        return reference::compute_all_anchors(anchors, info);
+    }
+
+    TensorType      _target{};
+    SimpleTensor<T> _reference{};
+};
+} // namespace validation
+} // namespace test
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_TEST_COMPUTEALLANCHORS_FIXTURE */