COMPMID-583 - Implemented reference implementation and validation tests (NEON and CL) for Histogram

Change-Id: Iccf6b4483cb8394dab2f861a737583126f9bed81
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/91601
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/tests/validation/NEON/Histogram.cpp b/tests/validation/NEON/Histogram.cpp
new file mode 100644
index 0000000000..d2b53b790c
--- /dev/null
+++ b/tests/validation/NEON/Histogram.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2017 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/Distribution1D.h"
+#include "arm_compute/runtime/NEON/functions/NEHistogram.h"
+#include "arm_compute/runtime/Tensor.h"
+#include "arm_compute/runtime/TensorAllocator.h"
+#include "tests/NEON/Accessor.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/HistogramFixture.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+TEST_SUITE(NEON)
+TEST_SUITE(Histogram)
+
+DATA_TEST_CASE(Configuration, framework::DatasetMode::ALL, combine(concat(datasets::Small2DShapes(), datasets::Large2DShapes()),
+                                                                   framework::dataset::make("DataType", DataType::U8)),
+               shape, data_type)
+{
+    // Setup Distribution
+    std::mt19937                            gen(library->seed());
+    std::uniform_int_distribution<size_t>   distribution_size_t(1, 30);
+    const size_t                            num_bins = distribution_size_t(gen);
+    std::uniform_int_distribution<int32_t>  distribution_int32_t(0, 125);
+    const size_t                            offset = distribution_int32_t(gen);
+    std::uniform_int_distribution<uint32_t> distribution_uint32_t(1, 255 - offset);
+    const size_t                            range = distribution_uint32_t(gen);
+    Distribution1D                          distribution_dst(num_bins, offset, range);
+
+    // Create tensors
+    Tensor      src = create_tensor<Tensor>(shape, data_type);
+    TensorShape dst_shape(num_bins);
+    Tensor      dst = create_tensor<Tensor>(dst_shape, DataType::U32);
+
+    ARM_COMPUTE_EXPECT(src.info()->is_resizable(), framework::LogLevel::ERRORS);
+    ARM_COMPUTE_EXPECT(dst.info()->is_resizable(), framework::LogLevel::ERRORS);
+
+    // Create and configure function
+    NEHistogram histogram;
+    histogram.configure(&src, &distribution_dst);
+
+    // Validate valid region
+    const ValidRegion valid_region = shape_to_valid_region(shape);
+    validate(src.info()->valid_region(), valid_region);
+    const ValidRegion valid_region_dst = shape_to_valid_region(dst_shape);
+    validate(dst.info()->valid_region(), valid_region_dst);
+
+    // Validate padding
+    const PaddingSize padding;
+    validate(src.info()->padding(), padding);
+    validate(dst.info()->padding(), padding);
+}
+
+template <typename T>
+using NEHistogramFixture = HistogramValidationFixture<Tensor, Accessor, NEHistogram, T, Distribution1D>;
+
+FIXTURE_DATA_TEST_CASE(RunSmall, NEHistogramFixture<uint8_t>, framework::DatasetMode::PRECOMMIT, combine(datasets::Small2DShapes(), framework::dataset::make("DataType",
+                                                                                                         DataType::U8)))
+{
+    // Validate output
+    validate(Accessor(_target), _reference);
+}
+FIXTURE_DATA_TEST_CASE(RunLarge, NEHistogramFixture<uint8_t>, framework::DatasetMode::NIGHTLY, combine(datasets::Large2DShapes(), framework::dataset::make("DataType",
+                                                                                                       DataType::U8)))
+{
+    // Validate output
+    validate(Accessor(_target), _reference);
+}
+
+TEST_SUITE_END()
+TEST_SUITE_END()
+} // namespace validation
+} // namespace test
+} // namespace arm_compute