COMPMID-577: Implement CL validation for GaussianPyramid

Change-Id: If879cbe15b14d97818c24d44b29fc69b6c8cb686
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/127601
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/tests/validation/CL/GaussianPyramid.cpp b/tests/validation/CL/GaussianPyramid.cpp
new file mode 100644
index 0000000..2a4596d
--- /dev/null
+++ b/tests/validation/CL/GaussianPyramid.cpp
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2018 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.
+*/
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/CL/CLTensor.h"
+#include "arm_compute/runtime/CL/CLTensorAllocator.h"
+#include "arm_compute/runtime/CL/functions/CLGaussianPyramid.h"
+#include "tests/CL/CLAccessor.h"
+#include "tests/PaddingCalculator.h"
+#include "tests/datasets/BorderModeDataset.h"
+#include "tests/datasets/ShapeDatasets.h"
+#include "tests/framework/Asserts.h"
+#include "tests/framework/Macros.h"
+#include "tests/framework/datasets/Datasets.h"
+#include "tests/validation/Validation.h"
+#include "tests/validation/fixtures/GaussianPyramidHalfFixture.h"
+#include "tests/validation/reference/Utils.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace
+{
+const auto small_gaussian_pyramid_levels = combine(datasets::Medium2DShapes(), datasets::BorderModes()) * framework::dataset::make("numlevels", 2, 4);
+const auto large_gaussian_pyramid_levels = combine(datasets::Large2DShapes(), datasets::BorderModes()) * framework::dataset::make("numlevels", 2, 5);
+
+template <typename T>
+inline void validate_gaussian_pyramid(const CLPyramid &target, const std::vector<SimpleTensor<T>> &reference, BorderMode border_mode)
+{
+    ValidRegion prev_valid_region = shape_to_valid_region(reference[0].shape());
+
+    for(size_t i = 1; i < reference.size(); ++i)
+    {
+        const ValidRegion valid_region = shape_to_valid_region_gaussian_pyramid_half(reference[i - 1].shape(), prev_valid_region, (border_mode == BorderMode::UNDEFINED));
+
+        // Validate outputs
+        validate(CLAccessor(*(target.get_pyramid_level(i))), reference[i], valid_region);
+
+        // Keep the valid region for the next level
+        prev_valid_region = valid_region;
+    }
+}
+
+} // namespace
+
+TEST_SUITE(CL)
+TEST_SUITE(GaussianPyramid)
+TEST_SUITE(Half)
+
+DATA_TEST_CASE(Configuration, framework::DatasetMode::ALL, large_gaussian_pyramid_levels,
+               shape, border_mode, num_levels)
+{
+    CLTensor src = create_tensor<CLTensor>(shape, DataType::U8);
+
+    // Create pyramid
+    PyramidInfo pyramid_info(num_levels, SCALE_PYRAMID_HALF, shape, Format::U8);
+    CLPyramid   dst;
+    dst.init(pyramid_info);
+
+    CLGaussianPyramidHalf gaussian_pyramid_half;
+    gaussian_pyramid_half.configure(&src, &dst, border_mode, 0);
+
+    ARM_COMPUTE_EXPECT(src.info()->is_resizable(), framework::LogLevel::ERRORS);
+
+    for(size_t level = 0; level < pyramid_info.num_levels(); ++level)
+    {
+        ARM_COMPUTE_EXPECT(dst.get_pyramid_level(level)->info()->is_resizable(), framework::LogLevel::ERRORS);
+    }
+}
+
+template <typename T>
+using CLGaussianPyramidHalfFixture = GaussianPyramidHalfValidationFixture<CLTensor, CLAccessor, CLGaussianPyramidHalf, T, CLPyramid>;
+
+FIXTURE_DATA_TEST_CASE(RunSmallGaussianPyramidHalf, CLGaussianPyramidHalfFixture<uint8_t>, framework::DatasetMode::ALL, small_gaussian_pyramid_levels)
+{
+    validate_gaussian_pyramid(_target, _reference, _border_mode);
+}
+
+FIXTURE_DATA_TEST_CASE(RunLargeGaussianPyramidHalf, CLGaussianPyramidHalfFixture<uint8_t>, framework::DatasetMode::NIGHTLY, large_gaussian_pyramid_levels)
+{
+    validate_gaussian_pyramid(_target, _reference, _border_mode);
+}
+TEST_SUITE_END()
+TEST_SUITE_END()
+TEST_SUITE_END()
+} // namespace validation
+} // namespace test
+} // namespace arm_compute
diff --git a/tests/validation/NEON/GaussianPyramid.cpp b/tests/validation/NEON/GaussianPyramid.cpp
index 0dea57e..c646b50 100644
--- a/tests/validation/NEON/GaussianPyramid.cpp
+++ b/tests/validation/NEON/GaussianPyramid.cpp
@@ -44,13 +44,11 @@
 {
 namespace
 {
-constexpr AbsoluteTolerance<float> tolerance_fp32(1.0f); /**< Tolerance value for comparing reference's output against implementation's output */
-
 const auto small_gaussian_pyramid_levels = combine(datasets::Medium2DShapes(), datasets::BorderModes()) * framework::dataset::make("numlevels", 2, 4);
 const auto large_gaussian_pyramid_levels = combine(datasets::Large2DShapes(), datasets::BorderModes()) * framework::dataset::make("numlevels", 2, 5);
 
-template <typename T, typename U>
-inline void validate_gaussian_pyramid(const Pyramid &target, const std::vector<SimpleTensor<T>> &reference, BorderMode border_mode, U tolerance, float tolerance_number = 0.0f)
+template <typename T>
+inline void validate_gaussian_pyramid(const Pyramid &target, const std::vector<SimpleTensor<T>> &reference, BorderMode border_mode)
 {
     ValidRegion prev_valid_region = shape_to_valid_region(reference[0].shape());
 
@@ -59,7 +57,7 @@
         const ValidRegion valid_region = shape_to_valid_region_gaussian_pyramid_half(reference[i - 1].shape(), prev_valid_region, (border_mode == BorderMode::UNDEFINED));
 
         // Validate outputs
-        validate(Accessor(*(target.get_pyramid_level(i))), reference[i], valid_region, tolerance, tolerance_number);
+        validate(Accessor(*(target.get_pyramid_level(i))), reference[i], valid_region);
 
         // Keep the valid region for the next level
         prev_valid_region = valid_region;
@@ -97,12 +95,12 @@
 
 FIXTURE_DATA_TEST_CASE(RunSmallGaussianPyramidHalf, NEGaussianPyramidHalfFixture<uint8_t>, framework::DatasetMode::ALL, small_gaussian_pyramid_levels)
 {
-    validate_gaussian_pyramid(_target, _reference, _border_mode, tolerance_fp32);
+    validate_gaussian_pyramid(_target, _reference, _border_mode);
 }
 
 FIXTURE_DATA_TEST_CASE(RunLargeGaussianPyramidHalf, NEGaussianPyramidHalfFixture<uint8_t>, framework::DatasetMode::NIGHTLY, large_gaussian_pyramid_levels)
 {
-    validate_gaussian_pyramid(_target, _reference, _border_mode, tolerance_fp32);
+    validate_gaussian_pyramid(_target, _reference, _border_mode);
 }
 TEST_SUITE_END()
 TEST_SUITE_END()
diff --git a/tests/validation/reference/GaussianPyramidHalf.cpp b/tests/validation/reference/GaussianPyramidHalf.cpp
index 0a68ded..7d5eb07 100644
--- a/tests/validation/reference/GaussianPyramidHalf.cpp
+++ b/tests/validation/reference/GaussianPyramidHalf.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 ARM Limited.
+ * Copyright (c) 2017-2018 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *