ce08d5a7ad
depth.tflite runs 7% faster (from 96ms to 89ms) on a Pixel 3 PiperOrigin-RevId: 260017515
93 lines
3.6 KiB
C++
93 lines
3.6 KiB
C++
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#ifndef TENSORFLOW_LITE_DELEGATES_GPU_COMMON_CONVERT_H_
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#define TENSORFLOW_LITE_DELEGATES_GPU_COMMON_CONVERT_H_
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#include <vector>
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#include "absl/types/span.h"
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#include "tensorflow/lite/delegates/gpu/common/shape.h"
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#include "tensorflow/lite/delegates/gpu/common/status.h"
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#include "tensorflow/lite/delegates/gpu/common/tensor.h"
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#include "tensorflow/lite/delegates/gpu/common/types.h"
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namespace tflite {
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namespace gpu {
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// PHWC4 layout is where channels are grouped by 4 in a row and P stands for
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// a plane that was derived by dividing channels by 4.
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Status ConvertToPHWC4(absl::Span<const float> in, const BHWC& shape,
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absl::Span<float> out);
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Status ConvertToPHWC4Half(absl::Span<const float> in, const BHWC& shape,
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absl::Span<HalfBits> out);
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// @return number of elements when shape is converted into PHWC4.
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uint32_t GetElementsSizeForPHWC4(const BHWC& shape);
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// Operation is opposite to ConvertToPHWC4.
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Status ConvertFromPHWC4(absl::Span<const float> in, const BHWC& shape,
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absl::Span<float> out);
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Status ConvertFromPHWC4Half(absl::Span<const HalfBits> in, const BHWC& shape,
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absl::Span<float> out);
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// Convenience wrapper around a method above.
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std::vector<float> ConvertToPHWC4(
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const Tensor<BHWC, DataType::FLOAT32>& tensor);
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std::vector<float> ConvertToPHWC4(const Tensor<HWC, DataType::FLOAT32>& tensor);
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// @return number of elements when shape is converted into PIOHW4.
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uint32_t GetElementsSizeForPIOHW4(const OHWI& shape);
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// PIOHW4 layout re-arranges weights in groups by 4, where outer dimension is
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// P which is OxI/4.
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Status ConvertToPIOHW4(absl::Span<const float> in, const OHWI& shape,
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absl::Span<float> out);
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// Convenience wrapper around a method above.
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std::vector<float> ConvertToPIOHW4(
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const Tensor<OHWI, DataType::FLOAT32>& tensor);
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// @return number of elements when shape is converted into PHWO4I4.
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uint32_t GetElementsSizeForPHWO4I4(const OHWI& shape);
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// Convenience wrapper around a method above.
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std::vector<float> ConvertToPHWO4I4(
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const Tensor<OHWI, DataType::FLOAT32>& tensor);
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// Convenience wrapper around a method above, for Transposed Convolution.
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std::vector<float> ConvertToPHWO4I4Transposed(
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const Tensor<OHWI, DataType::FLOAT32>& tensor);
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// @return (x,y,z) size for PHWO4I4 to access elements where each element
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// consists of 4 values.
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uint3 Get3DSizeForPHWO4I4(const OHWI& shape);
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// @return number of elements when shape is converted into PHWO4I4.
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uint32_t GetElementsSizeForPHWO4I4(const IHWO& shape);
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// Layout is Po,H,W,OI4x4.
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Status ConvertToPHWO4I4(absl::Span<const float> in, const IHWO& shape,
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absl::Span<float> out);
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// Convenience wrapper around a method above.
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std::vector<float> ConvertToPHWO4I4(
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const Tensor<IHWO, DataType::FLOAT32>& tensor);
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} // namespace gpu
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} // namespace tflite
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#endif // TENSORFLOW_LITE_DELEGATES_GPU_COMMON_CONVERT_H_
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