tests/validation/fixtures/dynamic_fusion/operators/CastFixture.h

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#ifndef ACL_TESTS_VALIDATION_FIXTURES_DYNAMIC_FUSION_OPERATORS_CASTFIXTURE_H
#define ACL_TESTS_VALIDATION_FIXTURES_DYNAMIC_FUSION_OPERATORS_CASTFIXTURE_H

#include "arm_compute/core/CL/CLKernelLibrary.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/dynamic_fusion/runtime/gpu/cl/ClWorkloadRuntime.h"
#include "arm_compute/dynamic_fusion/sketch/attributes/CastAttributes.h"
#include "arm_compute/dynamic_fusion/sketch/gpu/GpuWorkloadSketch.h"
#include "arm_compute/dynamic_fusion/sketch/gpu/operators/GpuOutput.h"

#include "tests/framework/Fixture.h"
#include "tests/validation/reference/DepthConvertLayer.h"

using namespace arm_compute::experimental::dynamic_fusion;

namespace arm_compute
{
namespace test
{
namespace validation
{
template <typename TensorType, typename AccessorType, typename FunctionType, typename T1, typename T2>
class DynamicFusionCastValidationFixture : public framework::Fixture
{
public:
    void setup(TensorShape shape, DataType dt_in, DataType dt_out, ConvertPolicy policy)
    {
        _target    = compute_target(shape, dt_in, dt_out, policy);
        _reference = compute_reference(shape, dt_in, dt_out, policy);
    }

protected:
    template <typename U>
    void fill(U &&tensor, int i, DataType dt_in, DataType dt_out)
    {
        // Restricting range to avoid inf values
        if (dt_out == DataType::F16)
        {
            constexpr int signed_min   = -32000;
            constexpr int signed_max   = 32000;
            constexpr int unsigned_min = 0;
            constexpr int unsigned_max = 65000;

            switch (dt_in)
            {
                case DataType::U8:
                case DataType::QASYMM8:
                case DataType::QASYMM8_SIGNED:
                case DataType::S8:
                case DataType::F32:
                {
                    library->fill_tensor_uniform(tensor, i);
                    break;
                }
                case DataType::U16:
                {
                    library->fill_tensor_uniform(tensor, i, static_cast<uint16_t>(unsigned_min),
                                                 static_cast<uint16_t>(unsigned_max));
                    break;
                }
                case DataType::S16:
                {
                    library->fill_tensor_uniform(tensor, i, static_cast<int16_t>(signed_min),
                                                 static_cast<int16_t>(signed_max));
                    break;
                }
                case DataType::U32:
                {
                    library->fill_tensor_uniform(tensor, i, static_cast<uint32_t>(unsigned_min),
                                                 static_cast<uint32_t>(unsigned_max));
                    break;
                }
                case DataType::S32:
                {
                    library->fill_tensor_uniform(tensor, i, static_cast<int32_t>(signed_min),
                                                 static_cast<int32_t>(signed_max));
                    break;
                }
                default:
                    ARM_COMPUTE_ERROR("NOT SUPPORTED!");
            }
        }
        else
        {
            library->fill_tensor_uniform(tensor, i);
        }
    }

    // Given input is in nchw format
    TensorType
    compute_target(const TensorShape &shape, const DataType dt_in, const DataType dt_out, const ConvertPolicy policy)
    {
        // Create a new workload sketch
        auto              cl_compile_ctx = CLKernelLibrary::get().get_compile_context();
        auto              context        = GpuWorkloadContext{&cl_compile_ctx};
        GpuWorkloadSketch sketch{&context};

        // Create sketch tensors
        // Here, we use DataLayout::NCHW just for the test. However, the optimal data layout to
        // be used with dynamic fusion is NHWC
        ITensorInfo *src_info =
            context.create_tensor_info(TensorInfo(shape, 1, dt_in, DataLayout::NCHW)); // layout is not important
        ITensorInfo *dst_info = context.create_tensor_info();

        CastAttributes attributes;
        attributes.convert_policy(policy).data_type(dt_out);

        ITensorInfo *ans_info = FunctionType::create_op(sketch, src_info, attributes);
        GpuOutput::create_op(sketch, ans_info, dst_info);

        // Configure runtime
        ClWorkloadRuntime runtime;
        runtime.configure(sketch);

        // (Important) Allocate auxiliary tensor memory if there are any
        for (auto &data : runtime.get_auxiliary_tensors())
        {
            CLTensor     *tensor      = std::get<0>(data);
            TensorInfo    info        = std::get<1>(data);
            AuxMemoryInfo aux_mem_req = std::get<2>(data);
            tensor->allocator()->init(info, aux_mem_req.alignment);
            tensor->allocator()->allocate(); // Use ACL allocated memory
        }

        // Construct user tensors
        TensorType t_src{};
        TensorType t_dst{};

        // Initialize user tensors
        t_src.allocator()->init(*src_info);
        t_dst.allocator()->init(*dst_info);

        // Allocate and fill user tensors
        t_src.allocator()->allocate();
        t_dst.allocator()->allocate();

        fill(AccessorType(t_src), 0, dt_in, dt_out);

        // Run runtime
        runtime.run({&t_src, &t_dst});
        return t_dst;
    }

    SimpleTensor<T2>
    compute_reference(const TensorShape &shape, const DataType dt_in, const DataType dt_out, const ConvertPolicy policy)
    {
        // Create reference
        SimpleTensor<T1> src{shape, dt_in, 1};

        // Fill reference
        fill(src, 0, dt_in, dt_out);

        return reference::depth_convert<T1, T2>(src, dt_out, policy, 0);
    }

    TensorType       _target{};
    SimpleTensor<T2> _reference{};
};
} // namespace validation
} // namespace test
} // namespace arm_compute
#endif // ACL_TESTS_VALIDATION_FIXTURES_DYNAMIC_FUSION_OPERATORS_CASTFIXTURE_H