COMPMID-692 Consistent names for the interfaces

Change-Id: I4b1f3f0da9ff5342c7de7083736fe91871d14e5b
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/110351
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 524 insertions, 0 deletions

diff --git a/src/core/NEON/kernels/NEDepthConvertLayerKernel.cpp b/src/core/NEON/kernels/NEDepthConvertLayerKernel.cpp
new file mode 100644
index 0000000000..c29cb57513
--- /dev/null
+++ b/src/core/NEON/kernels/NEDepthConvertLayerKernel.cpp
@@ -0,0 +1,524 @@
+/*
+ * Copyright (c) 2016, 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/NEON/kernels/NEDepthConvertLayerKernel.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/NEON/NEFixedPoint.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/core/Validate.h"
+
+#include <arm_neon.h>
+
+using namespace arm_compute;
+
+namespace arm_compute
+{
+class Coordinates;
+} // namespace arm_compute
+
+NEDepthConvertLayerKernel::NEDepthConvertLayerKernel()
+    : _input(nullptr), _output(nullptr), _policy(), _shift(0), _fixed_point_position_input(0), _fixed_point_position_output(0)
+{
+}
+
+void NEDepthConvertLayerKernel::configure(ITensor *input, ITensor *output, ConvertPolicy policy, uint32_t shift)
+{
+    ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8, DataType::QS8, DataType::S16, DataType::U16, DataType::QS16, DataType::F32);
+
+    _input  = input;
+    _output = input;
+    _policy = policy;
+    _shift  = shift;
+
+    if(output != nullptr)
+    {
+        // Auto initialize output shape if not initialized (We can only auto-configure the shape, datatype must be given)
+        set_shape_if_empty(*output->info(), input->info()->tensor_shape());
+
+        ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::U8, DataType::QS8, DataType::S16, DataType::U16, DataType::QS16, DataType::U32, DataType::S32, DataType::F32);
+        ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input, output);
+
+        // Set output
+        _output = output;
+    }
+
+    // Set initial fixed point position of input and output
+    _fixed_point_position_input  = input->info()->fixed_point_position();
+    _fixed_point_position_output = _output->info()->fixed_point_position();
+
+    // Set the fixed point position to the output tensor if needed
+    if(is_data_type_fixed_point(input->info()->data_type()) && is_data_type_fixed_point(_output->info()->data_type()))
+    {
+        // If in-place set the fixed point position of the output tensor to be equal to shift
+        _fixed_point_position_output = (_input == _output) ? static_cast<int>(_shift) : _fixed_point_position_output;
+        // Set fixed point position to output tensor
+        _output->info()->set_fixed_point_position(_fixed_point_position_output);
+    }
+
+    ARM_COMPUTE_ERROR_ON(shift >= 8 && (!is_data_type_fixed_point(input->info()->data_type()) && !is_data_type_fixed_point(output->info()->data_type())));
+    ARM_COMPUTE_ERROR_ON(input == output && (data_size_from_type(input->info()->data_type()) != data_size_from_type(output->info()->data_type())));
+
+    ARM_COMPUTE_ERROR_ON_MSG(input->info()->data_type() == DataType::U8 && (output->info()->data_type() != DataType::S16 && output->info()->data_type() != DataType::U16
+                                                                            && output->info()->data_type() != DataType::S32),
+                             "Only data_types supported [in] U8 -> [out] U16, S16, S32");
+
+    ARM_COMPUTE_ERROR_ON_MSG(input->info()->data_type() == DataType::QS8 && (output->info()->data_type() != DataType::QS8 && output->info()->data_type() != DataType::F32),
+                             "Only data_types supported [in] QS8 ->  [out] QS8, F32");
+
+    ARM_COMPUTE_ERROR_ON_MSG(input->info()->data_type() == DataType::U16 && (output->info()->data_type() != DataType::U8 && output->info()->data_type() != DataType::U32),
+                             "Only data_types supported [in] U16 ->  [out] U8, U32");
+
+    ARM_COMPUTE_ERROR_ON_MSG(input->info()->data_type() == DataType::S16 && (output->info()->data_type() != DataType::U8 && output->info()->data_type() != DataType::S32),
+                             "Only data_types supported [in] S16 ->  [out] U8, S32");
+
+    ARM_COMPUTE_ERROR_ON_MSG(input->info()->data_type() == DataType::QS16 && (output->info()->data_type() != DataType::QS16 && output->info()->data_type() != DataType::F32),
+                             "Only data_types supported [in] QS16 ->  [out] QS16, F32");
+
+    ARM_COMPUTE_ERROR_ON_MSG(input->info()->data_type() == DataType::F32 && (output->info()->data_type() != DataType::QS8 && output->info()->data_type() != DataType::QS16),
+                             "Only data_types supported [in] F32 ->  [out] QS8, QS16");
+
+    constexpr unsigned int num_elems_processed_per_iteration = 16;
+
+    // Configure kernel window
+    Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
+
+    AccessWindowHorizontal input_access(input->info(), 0, num_elems_processed_per_iteration);
+    if(output != nullptr)
+    {
+        AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
+        update_window_and_padding(win, input_access, output_access);
+        output_access.set_valid_region(win, input->info()->valid_region());
+    }
+    else
+    {
+        // In-place computation
+        update_window_and_padding(win, input_access);
+    }
+    ICPPKernel::configure(win);
+}
+
+void NEDepthConvertLayerKernel::run(const Window &window, const ThreadInfo &info)
+{
+    ARM_COMPUTE_UNUSED(info);
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IKernel::window(), window);
+    ARM_COMPUTE_ERROR_ON(nullptr == _input);
+    ARM_COMPUTE_ERROR_ON(nullptr == _output);
+    ARM_COMPUTE_ERROR_ON(_input == _output);
+
+    Iterator input(_input, window);
+    Iterator output(_output, window);
+
+    bool in_place = (_input == _output);
+
+    switch(_input->info()->data_type())
+    {
+        case DataType::U8:
+        {
+            const int16x8_t b = vdupq_n_s16(_shift);
+
+            switch(_output->info()->data_type())
+            {
+                case DataType::S16:
+                {
+                    /* Up-conversion U8 -> S16 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const uint8x16_t texels_u8 = vld1q_u8(input.ptr());
+
+                        const int16x8x2_t texels =
+                        {
+                            {
+                                vshlq_s16(vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(texels_u8))), b),
+                                vshlq_s16(vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(texels_u8))), b)
+                            }
+                        };
+
+                        vst1q_s16(reinterpret_cast<int16_t *>(output.ptr()), texels.val[0]);
+                        vst1q_s16(reinterpret_cast<int16_t *>(output.ptr()) + 8, texels.val[1]);
+                    },
+                    input, output);
+                    break;
+                }
+                case DataType::S32:
+                {
+                    /* Up-conversion U8 -> S32 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const uint8x16_t texels_u8 = vld1q_u8(input.ptr());
+
+                        const int16x8x2_t texels =
+                        {
+                            {
+                                vshlq_s16(vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(texels_u8))), b),
+                                vshlq_s16(vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(texels_u8))), b)
+                            }
+                        };
+
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()), vmovl_s16(vget_low_s16(texels.val[0])));
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()) + 4, vmovl_s16(vget_high_s16(texels.val[0])));
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()) + 8, vmovl_s16(vget_low_s16(texels.val[1])));
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()) + 12, vmovl_s16(vget_high_s16(texels.val[1])));
+                    },
+                    input, output);
+                    break;
+                }
+                case DataType::U16:
+                {
+                    /* Up-conversion U8 -> U16 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const uint8x16_t texels_u8 = vld1q_u8(input.ptr());
+
+                        const uint16x8x2_t texels =
+                        {
+                            {
+                                vshlq_u16(vmovl_u8(vget_low_u8(texels_u8)), b),
+                                vshlq_u16(vmovl_u8(vget_high_u8(texels_u8)), b)
+                            }
+                        };
+
+                        vst1q_u16(reinterpret_cast<uint16_t *>(output.ptr()), texels.val[0]);
+                        vst1q_u16(reinterpret_cast<uint16_t *>(output.ptr()) + 8, texels.val[1]);
+                    },
+                    input, output);
+                    break;
+                }
+                default:
+                    ARM_COMPUTE_ERROR("Output data type not supported");
+            }
+            break;
+        }
+        case DataType::QS8:
+        {
+            switch(_output->info()->data_type())
+            {
+                case DataType::QS8:
+                {
+                    const int relative_shift = _fixed_point_position_output - _fixed_point_position_input;
+                    /* Fixed point position conversion QS8 -> QS8 */
+                    if(relative_shift != 0 || !in_place)
+                    {
+                        const auto relative_shift_vec = vdupq_n_qs8(relative_shift);
+                        execute_window_loop(window, [&](const Coordinates & id)
+                        {
+                            const qint8x16_t texels_qs8 = vld1q_qs8(reinterpret_cast<const qint8_t *>(input.ptr()));
+                            vst1q_qs8(reinterpret_cast<qint8_t *>(output.ptr()), vqrshlq_s8(texels_qs8, relative_shift_vec));
+                        },
+                        input, output);
+                    }
+                    break;
+                }
+                case DataType::F32:
+                {
+                    /* Up-conversion QS8 -> F32 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const qint8x16_t texels_qs8 = vld1q_qs8(reinterpret_cast<const qint8_t *>(input.ptr()));
+
+                        float32x4x2_t texels_low  = vcvt_f32_qs8(vget_low_s8(texels_qs8), _fixed_point_position_input);
+                        float32x4x2_t texels_high = vcvt_f32_qs8(vget_high_s8(texels_qs8), _fixed_point_position_input);
+
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()), texels_low.val[0]);
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()) + 4, texels_low.val[1]);
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()) + 8, texels_high.val[0]);
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()) + 12, texels_high.val[1]);
+                    },
+                    input, output);
+                    break;
+                }
+                default:
+                    ARM_COMPUTE_ERROR("Output data type not supported");
+            }
+            break;
+        }
+        case DataType::S16:
+        {
+            switch(_output->info()->data_type())
+            {
+                case DataType::U8:
+                {
+                    const int16x8_t b = vdupq_n_s16(-static_cast<int16_t>(_shift));
+
+                    /* Down-conversion S16 -> U8 */
+                    if(ConvertPolicy::SATURATE == _policy)
+                    {
+                        execute_window_loop(window, [&](const Coordinates & id)
+                        {
+                            const int16x8x2_t texels =
+                            {
+                                {
+                                    vqshlq_s16(vld1q_s16(reinterpret_cast<int16_t *>(input.ptr())), b),
+                                    vqshlq_s16(vld1q_s16(reinterpret_cast<int16_t *>(input.ptr()) + 8), b)
+                                }
+                            };
+
+                            vst1q_u8(output.ptr(), vcombine_u8(vqmovun_s16(texels.val[0]), vqmovun_s16(texels.val[1])));
+                        },
+                        input, output);
+                    }
+                    else
+                    {
+                        execute_window_loop(window, [&](const Coordinates & id)
+                        {
+                            const int16x8x2_t texels =
+                            {
+                                {
+                                    vshlq_s16(vld1q_s16(reinterpret_cast<int16_t *>(input.ptr())), b),
+                                    vshlq_s16(vld1q_s16(reinterpret_cast<int16_t *>(input.ptr()) + 8), b)
+                                }
+                            };
+
+                            vst1q_u8(output.ptr(), vcombine_u8(vmovn_u16(vreinterpretq_u16_s16(texels.val[0])),
+                                                               vmovn_u16(vreinterpretq_u16_s16(texels.val[1]))));
+                        },
+                        input, output);
+                    }
+                    break;
+                }
+                case DataType::S32:
+                {
+                    const int32x4_t b = vdupq_n_s32(_shift);
+
+                    /* Up-conversion S16 -> S32 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const int16x8x2_t texels =
+                        {
+                            {
+                                vld1q_s16(reinterpret_cast<int16_t *>(input.ptr())),
+                                vld1q_s16(reinterpret_cast<int16_t *>(input.ptr()) + 8)
+                            }
+                        };
+
+                        const int32x4x4_t texels_s32 =
+                        {
+                            {
+                                vshlq_s32(vmovl_s16(vget_low_s16(texels.val[0])), b),
+                                vshlq_s32(vmovl_s16(vget_high_s16(texels.val[0])), b),
+                                vshlq_s32(vmovl_s16(vget_low_s16(texels.val[1])), b),
+                                vshlq_s32(vmovl_s16(vget_high_s16(texels.val[1])), b)
+                            }
+                        };
+
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()), texels_s32.val[0]);
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()) + 4, texels_s32.val[1]);
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()) + 8, texels_s32.val[2]);
+                        vst1q_s32(reinterpret_cast<int32_t *>(output.ptr()) + 12, texels_s32.val[3]);
+                    },
+                    input, output);
+                    break;
+                }
+                default:
+                    ARM_COMPUTE_ERROR("Output data type not supported");
+            }
+            break;
+        }
+        case DataType::U16:
+        {
+            switch(_output->info()->data_type())
+            {
+                case DataType::U8:
+                {
+                    const int16x8_t b = vdupq_n_s16(-static_cast<int16_t>(_shift));
+
+                    /* Down-conversion U16 -> U8 */
+                    if(ConvertPolicy::SATURATE == _policy)
+                    {
+                        execute_window_loop(window, [&](const Coordinates & id)
+                        {
+                            const uint16x8x2_t texels =
+                            {
+                                {
+                                    vqshlq_u16(vld1q_u16(reinterpret_cast<uint16_t *>(input.ptr())), b),
+                                    vqshlq_u16(vld1q_u16(reinterpret_cast<uint16_t *>(input.ptr()) + 8), b)
+                                }
+                            };
+
+                            vst1q_u8(output.ptr(), vcombine_u8(vqmovn_u16(texels.val[0]), vqmovn_u16(texels.val[1])));
+                        },
+                        input, output);
+                    }
+                    else
+                    {
+                        execute_window_loop(window, [&](const Coordinates & id)
+                        {
+                            const uint16x8x2_t texels =
+                            {
+                                {
+                                    vshlq_u16(vld1q_u16(reinterpret_cast<uint16_t *>(input.ptr())), b),
+                                    vshlq_u16(vld1q_u16(reinterpret_cast<uint16_t *>(input.ptr()) + 8), b)
+                                }
+                            };
+
+                            vst1q_u8(output.ptr(), vcombine_u8(vmovn_u16(texels.val[0]), vmovn_u16(texels.val[1])));
+                        },
+                        input, output);
+                    }
+                    break;
+                }
+                case DataType::U32:
+                {
+                    const int32x4_t b = vdupq_n_s32(_shift);
+
+                    /* Up-conversion U16 -> U32 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const uint16x8x2_t texels =
+                        {
+                            {
+                                vld1q_u16(reinterpret_cast<uint16_t *>(input.ptr())),
+                                vld1q_u16(reinterpret_cast<uint16_t *>(input.ptr()) + 8)
+                            }
+                        };
+
+                        vst1q_u32(reinterpret_cast<uint32_t *>(output.ptr()), vshlq_u32(vmovl_u16(vget_low_u16(texels.val[0])), b));
+                        vst1q_u32(reinterpret_cast<uint32_t *>(output.ptr()) + 4, vshlq_u32(vmovl_u16(vget_high_u16(texels.val[0])), b));
+                        vst1q_u32(reinterpret_cast<uint32_t *>(output.ptr()) + 8, vshlq_u32(vmovl_u16(vget_low_u16(texels.val[1])), b));
+                        vst1q_u32(reinterpret_cast<uint32_t *>(output.ptr()) + 12, vshlq_u32(vmovl_u16(vget_high_u16(texels.val[1])), b));
+                    },
+                    input, output);
+                    break;
+                }
+                default:
+                    ARM_COMPUTE_ERROR("Output data type not supported");
+            }
+            break;
+        }
+        case DataType::QS16:
+        {
+            switch(_output->info()->data_type())
+            {
+                case DataType::QS16:
+                {
+                    const int relative_shift = _fixed_point_position_output - _fixed_point_position_input;
+                    /* Fixed point position conversion QS16 -> QS16 */
+                    if(relative_shift != 0 || !in_place)
+                    {
+                        const auto relative_shift_vec = vdupq_n_qs16(relative_shift);
+                        execute_window_loop(window, [&](const Coordinates & id)
+                        {
+                            const qint16x8x2_t texels_qs16 =
+                            {
+                                {
+                                    vld1q_qs16(reinterpret_cast<qint16_t *>(input.ptr())),
+                                    vld1q_qs16(reinterpret_cast<qint16_t *>(input.ptr()) + 8)
+                                }
+                            };
+                            vst1q_qs16(reinterpret_cast<qint16_t *>(output.ptr()), vqrshlq_s16(texels_qs16.val[0], relative_shift_vec));
+                            vst1q_qs16(reinterpret_cast<qint16_t *>(output.ptr()) + 8, vqrshlq_s16(texels_qs16.val[1], relative_shift_vec));
+                        },
+                        input, output);
+                    }
+                    break;
+                }
+                case DataType::F32:
+                {
+                    /* Up-conversion QS16 -> F32 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const int16x8x2_t texels_qs16 =
+                        {
+                            {
+                                vld1q_s16(reinterpret_cast<qint16_t *>(input.ptr())),
+                                vld1q_s16(reinterpret_cast<qint16_t *>(input.ptr()) + 8)
+                            }
+                        };
+
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()), vcvt_f32_qs16(vget_low_s16(texels_qs16.val[0]), _fixed_point_position_input));
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()) + 4, vcvt_f32_qs16(vget_high_s16(texels_qs16.val[0]), _fixed_point_position_input));
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()) + 8, vcvt_f32_qs16(vget_low_s16(texels_qs16.val[1]), _fixed_point_position_input));
+                        vst1q_f32(reinterpret_cast<float *>(output.ptr()) + 12, vcvt_f32_qs16(vget_high_s16(texels_qs16.val[1]), _fixed_point_position_input));
+                    },
+                    input, output);
+                    break;
+                }
+                default:
+                    ARM_COMPUTE_ERROR("Output data type not supported");
+            }
+            break;
+        }
+        case DataType::F32:
+        {
+            switch(_output->info()->data_type())
+            {
+                case DataType::QS8:
+                {
+                    /* Down-conversion F32 -> QS8 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const float32x4x4_t texels_f32 =
+                        {
+                            {
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr())),
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr()) + 4),
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr()) + 8),
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr()) + 12)
+                            }
+                        };
+
+                        const qint8x16_t texels_s8 = vqcvtq_qs8_f32(texels_f32, _fixed_point_position_output);
+
+                        vst1q_s8(reinterpret_cast<int8_t *>(output.ptr()), texels_s8);
+                    },
+                    input, output);
+                    break;
+                }
+                case DataType::QS16:
+                {
+                    /* Down-conversion F32 -> QS16 */
+                    execute_window_loop(window, [&](const Coordinates & id)
+                    {
+                        const float32x4x2_t texels_f32_1 =
+                        {
+                            {
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr())),
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr()) + 4),
+                            }
+                        };
+                        const float32x4x2_t texels_f32_2 =
+                        {
+                            {
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr()) + 8),
+                                vld1q_f32(reinterpret_cast<const float *>(input.ptr()) + 12)
+                            }
+                        };
+
+                        vst1q_s16(reinterpret_cast<qint16_t *>(output.ptr()), vqcvtq_qs16_f32(texels_f32_1, _fixed_point_position_output));
+                        vst1q_s16(reinterpret_cast<qint16_t *>(output.ptr()) + 8, vqcvtq_qs16_f32(texels_f32_2, _fixed_point_position_output));
+                    },
+                    input, output);
+                    break;
+                }
+                default:
+                    ARM_COMPUTE_ERROR("Output data type not supported");
+            }
+            break;
+        }
+        default:
+            ARM_COMPUTE_ERROR("Not supported");
+    }
+}