| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "OperationsUtils" |
| |
| #include "OperationsUtils.h" |
| |
| #include <algorithm> |
| #include <cmath> |
| #include <limits> |
| #include <sstream> |
| #include <vector> |
| |
| #include "Operations.h" |
| #include "Utils.h" |
| |
| namespace android { |
| namespace nn { |
| |
| namespace { |
| |
| bool validateOperandTypes(const std::vector<OperandType>& expectedTypes, const char* tag, |
| uint32_t operandCount, |
| std::function<OperandType(uint32_t)> getOperandType) { |
| NN_RET_CHECK_EQ(operandCount, expectedTypes.size()); |
| for (uint32_t i = 0; i < operandCount; ++i) { |
| OperandType type = getOperandType(i); |
| NN_RET_CHECK(type == expectedTypes[i]) |
| << "Invalid " << tag << " tensor type " << type << " for " << tag << " " << i |
| << ", expected " << expectedTypes[i]; |
| } |
| return true; |
| } |
| |
| void CalculateActivationRangeImpl(int32_t activation, const Shape& outputShape, int32_t qmin, |
| int32_t qmax, int32_t* act_min, int32_t* act_max) { |
| const auto scale = outputShape.scale; |
| const auto zero_point = outputShape.offset; |
| |
| auto quantize = [scale, zero_point](float f) { |
| return zero_point + static_cast<int32_t>(std::round(f / scale)); |
| }; |
| |
| if (activation == kActivationRelu) { |
| *act_min = std::max(qmin, quantize(0.0)); |
| *act_max = qmax; |
| } else if (activation == kActivationRelu6) { |
| *act_min = std::max(qmin, quantize(0.0)); |
| *act_max = std::min(qmax, quantize(6.0)); |
| } else if (activation == kActivationRelu1) { |
| *act_min = std::max(qmin, quantize(-1.0)); |
| *act_max = std::min(qmax, quantize(1.0)); |
| } else if (activation == kActivationNone) { |
| *act_min = qmin; |
| *act_max = qmax; |
| } else { |
| LOG(ERROR) << "Unsupported fused activation function."; |
| } |
| } |
| |
| } // namespace |
| |
| bool validateInputTypes(const IOperationValidationContext* context, |
| const std::vector<OperandType>& expectedTypes) { |
| return validateOperandTypes(expectedTypes, "input", context->getNumInputs(), |
| [context](uint32_t index) { return context->getInputType(index); }); |
| } |
| |
| bool validateOutputTypes(const IOperationValidationContext* context, |
| const std::vector<OperandType>& expectedTypes) { |
| return validateOperandTypes( |
| expectedTypes, "output", context->getNumOutputs(), |
| [context](uint32_t index) { return context->getOutputType(index); }); |
| } |
| |
| bool validateVersion(const IOperationValidationContext* context, Version minSupportedVersion) { |
| if (context->getVersion() < minSupportedVersion) { |
| std::ostringstream message; |
| message << "Operation " << context->getOperationName() << " with inputs {"; |
| for (uint32_t i = 0, n = context->getNumInputs(); i < n; ++i) { |
| if (i != 0) { |
| message << ", "; |
| } |
| message << context->getInputType(i); |
| } |
| message << "} and outputs {"; |
| for (uint32_t i = 0, n = context->getNumOutputs(); i < n; ++i) { |
| if (i != 0) { |
| message << ", "; |
| } |
| message << context->getOutputType(i); |
| } |
| message << "} is only supported since " << minSupportedVersion << " (validating using " |
| << context->getVersion() << ")"; |
| NN_RET_CHECK_FAIL() << message.str(); |
| } |
| return true; |
| } |
| |
| bool SameShape(const Shape& in1, const Shape& in2) { |
| if (in1.type != in2.type || in1.dimensions.size() != in2.dimensions.size()) { |
| return false; |
| } |
| for (size_t i = 0; i < in1.dimensions.size(); i++) { |
| if (in1.dimensions[i] != in2.dimensions[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool SetShape(const Shape& in, Shape* out) { |
| if (in.type != out->type) { |
| return false; |
| } |
| out->dimensions = in.dimensions; |
| return true; |
| } |
| |
| uint32_t getNumberOfElements(const Shape& shape) { |
| uint32_t count = 1; |
| for (size_t i = 0; i < shape.dimensions.size(); i++) { |
| count *= shape.dimensions[i]; |
| } |
| return count; |
| } |
| |
| uint32_t getNumberOfElements(const Shape& shape, size_t firstAxisInclusive, |
| size_t lastAxisExclusive) { |
| nnAssert(0 <= firstAxisInclusive); |
| nnAssert(firstAxisInclusive <= lastAxisExclusive); |
| nnAssert(lastAxisExclusive <= shape.dimensions.size()); |
| uint32_t count = 1; |
| for (size_t i = firstAxisInclusive; i < lastAxisExclusive; i++) { |
| count *= shape.dimensions[i]; |
| } |
| return count; |
| } |
| |
| uint32_t getNumberOfDimensions(const Shape& shape) { |
| return shape.dimensions.size(); |
| } |
| |
| uint32_t getSizeOfDimension(const Shape& shape, uint32_t dimensionIdx) { |
| nnAssert(0 <= dimensionIdx && dimensionIdx < shape.dimensions.size()); |
| return shape.dimensions[dimensionIdx]; |
| } |
| |
| uint32_t hasKnownRank(const Shape& shape) { |
| return !shape.dimensions.empty(); |
| } |
| |
| bool handleNegativeAxis(int32_t numberOfDimensions, int32_t* axis) { |
| NN_CHECK(-numberOfDimensions <= *axis && *axis < numberOfDimensions); |
| if (*axis < 0) { |
| *axis += numberOfDimensions; |
| } |
| return true; |
| } |
| |
| bool QuantizeMultiplier(double double_multiplier, int32_t* quantized_multiplier, int32_t* shift) { |
| if (double_multiplier == 0.) { |
| *quantized_multiplier = 0; |
| *shift = 0; |
| return true; |
| } |
| const double q = std::frexp(double_multiplier, shift); |
| auto q_fixed = static_cast<int64_t>(std::round(q * (1ll << 31))); |
| NN_RET_CHECK(q_fixed <= (1ll << 31)); |
| if (q_fixed == (1ll << 31)) { |
| q_fixed /= 2; |
| ++*shift; |
| } |
| NN_RET_CHECK_LE(q_fixed, std::numeric_limits<int32_t>::max()); |
| // A shift amount smaller than -31 would cause all bits to be shifted out |
| // and thus all results would be zero. We implement that instead with |
| // q_fixed==0, so as to avoid hitting issues with right-shift |
| // operations with shift amounts greater than 31. Note that this happens |
| // roughly when abs(double_multiplier) < 2^-31 and the present handling means |
| // that we're effectively flushing tiny double_multiplier's to zero. |
| // We could conceivably handle values in the range (roughly) [32, 63] |
| // as 'denormals' i.e. (shift==0, q_fixed < 2^30). In that point of view |
| // the present handling is just doing 'flush denormals to zero'. We could |
| // reconsider and actually generate nonzero denormals if a need arises. |
| if (*shift < -31) { |
| *shift = 0; |
| q_fixed = 0; |
| } |
| *quantized_multiplier = static_cast<int32_t>(q_fixed); |
| return true; |
| } |
| |
| bool QuantizeMultiplierSmallerThanOneExp(double double_multiplier, int32_t* quantized_multiplier, |
| int32_t* left_shift) { |
| NN_RET_CHECK(double_multiplier > 0.); |
| NN_RET_CHECK(double_multiplier < 1.); |
| NN_RET_CHECK(QuantizeMultiplier(double_multiplier, quantized_multiplier, left_shift)); |
| NN_RET_CHECK(*left_shift <= 0); |
| return true; |
| } |
| |
| bool QuantizeMultiplierSmallerThanOne(double double_multiplier, int32_t* quantized_multiplier, |
| int32_t* right_shift) { |
| NN_OPS_CHECK(double_multiplier >= 0.); |
| NN_OPS_CHECK(double_multiplier < 1.); |
| if (double_multiplier == 0.) { |
| *quantized_multiplier = 0; |
| *right_shift = 0; |
| return true; |
| } |
| NN_OPS_CHECK(double_multiplier > 0.); |
| const double q = std::frexp(double_multiplier, right_shift); |
| *right_shift *= -1; |
| int64_t q_fixed = static_cast<int64_t>(std::round(q * (1LL << 31))); |
| NN_OPS_CHECK(q_fixed <= (1LL << 31)); |
| if (q_fixed == (1LL << 31)) { |
| q_fixed /= 2; |
| --*right_shift; |
| } |
| NN_OPS_CHECK(*right_shift >= 0); |
| NN_OPS_CHECK(q_fixed <= std::numeric_limits<int32_t>::max()); |
| *quantized_multiplier = static_cast<int32_t>(q_fixed); |
| return true; |
| } |
| |
| bool QuantizeMultiplierGreaterThanOne(double double_multiplier, int32_t* quantized_multiplier, |
| int* left_shift) { |
| NN_OPS_CHECK(double_multiplier > 1.); |
| const double q = std::frexp(double_multiplier, left_shift); |
| int64_t q_fixed = static_cast<int64_t>(std::round(q * (1LL << 31))); |
| NN_OPS_CHECK(q_fixed <= (1LL << 31)); |
| if (q_fixed == (1LL << 31)) { |
| q_fixed /= 2; |
| ++*left_shift; |
| } |
| NN_OPS_CHECK(*left_shift >= 0); |
| NN_OPS_CHECK(q_fixed <= std::numeric_limits<int32_t>::max()); |
| *quantized_multiplier = static_cast<int32_t>(q_fixed); |
| return true; |
| } |
| |
| bool GetQuantizedConvolutionMultipler(const Shape& inputShape, const Shape& filterShape, |
| const Shape& biasShape, const Shape& outputShape, |
| double* multiplier) { |
| // Upcast bias and input_product to double |
| const double input_product_scale = inputShape.scale * filterShape.scale; |
| const double bias_scale = biasShape.scale; |
| |
| // The following conditions must be guaranteed by the training pipeline. |
| NN_OPS_CHECK(std::abs(input_product_scale - bias_scale) <= |
| 1e-6 * std::min(input_product_scale, bias_scale)); |
| NN_OPS_CHECK(input_product_scale >= 0); |
| *multiplier = input_product_scale / outputShape.scale; |
| return true; |
| } |
| |
| void CalculateActivationRangeUint8(int32_t activation, const Shape& outputShape, int32_t* act_min, |
| int32_t* act_max) { |
| const int32_t qmin = std::numeric_limits<uint8_t>::min(); |
| const int32_t qmax = std::numeric_limits<uint8_t>::max(); |
| |
| CalculateActivationRangeImpl(activation, outputShape, qmin, qmax, act_min, act_max); |
| } |
| |
| void CalculateActivationRangeInt8(int32_t activation, const Shape& outputShape, int32_t* act_min, |
| int32_t* act_max) { |
| const int32_t qmin = std::numeric_limits<int8_t>::min(); |
| const int32_t qmax = std::numeric_limits<int8_t>::max(); |
| |
| CalculateActivationRangeImpl(activation, outputShape, qmin, qmax, act_min, act_max); |
| } |
| |
| void CalculateActivationRangeFloat(int32_t activation, float* activation_min, |
| float* activation_max) { |
| if (activation == kActivationRelu) { |
| *activation_min = 0.f; |
| *activation_max = std::numeric_limits<float>::max(); |
| } else if (activation == kActivationRelu6) { |
| *activation_min = 0.f; |
| *activation_max = 6.f; |
| } else if (activation == kActivationRelu1) { |
| *activation_min = -1.f; |
| *activation_max = 1.f; |
| } else if (activation == kActivationNone) { |
| *activation_min = std::numeric_limits<float>::lowest(); |
| *activation_max = std::numeric_limits<float>::max(); |
| } else { |
| LOG(ERROR) << "Unsupported fused activation function."; |
| } |
| } |
| |
| int32_t CalculateInputRadius(int input_integer_bits, int input_left_shift) { |
| const double max_input_rescaled = 1.0 * ((1 << input_integer_bits) - 1) * |
| (1LL << (31 - input_integer_bits)) / |
| (1LL << input_left_shift); |
| // Tighten bound using floor. Suppose that we could use the exact value. |
| // After scaling the difference, the result would be at the maximum. Thus we |
| // must ensure that our value has lower magnitude. |
| return static_cast<int32_t>(std::floor(max_input_rescaled)); |
| } |
| |
| void calculateExplicitPaddingImpl(int32_t in_size, int32_t stride, int32_t dilation_factor, |
| int32_t filter_size, int32_t padding_implicit, |
| bool isTransposeConv, int32_t* padding_head, |
| int32_t* padding_tail) { |
| *padding_head = 0; |
| *padding_tail = 0; |
| |
| int32_t effective_filter_size = (filter_size - 1) * dilation_factor + 1; |
| |
| if (padding_implicit == kPaddingSame) { |
| int32_t out_size = (in_size + stride - 1) / stride; |
| int32_t tmp = (out_size - 1) * stride + effective_filter_size; |
| if (tmp > in_size) { |
| *padding_head = (tmp - in_size) / 2; |
| *padding_tail = (tmp - in_size) - *padding_head; |
| } |
| // For transpose conv, make padding tail fit tightly to the end of the last stride. |
| if (isTransposeConv) { |
| *padding_tail = (tmp - in_size) - *padding_head; |
| } |
| } |
| } |
| |
| bool calculateBroadcastedShape(const Shape& in1, const Shape& in2, Shape* out) { |
| NN_RET_CHECK(in1.type == in2.type); |
| uint32_t numberOfDims1 = getNumberOfDimensions(in1); |
| uint32_t numberOfDims2 = getNumberOfDimensions(in2); |
| uint32_t maxDims = std::max(numberOfDims1, numberOfDims2); |
| out->dimensions = std::vector<uint32_t>(maxDims); |
| for (uint32_t i = 1; i <= maxDims; i++) { |
| uint32_t dim1 = 1; |
| if (i <= numberOfDims1) { |
| dim1 = getSizeOfDimension(in1, numberOfDims1 - i); |
| } |
| uint32_t dim2 = 1; |
| if (i <= numberOfDims2) { |
| dim2 = getSizeOfDimension(in2, numberOfDims2 - i); |
| } |
| if (dim1 != dim2 && dim1 != 1 && dim2 != 1) { |
| LOG(ERROR) << "Dimensions mismatch for broadcast:\n" |
| << "First tensor: dimension " << numberOfDims1 - i << " of size " << dim1 |
| << "\nSecond tensor: dimension " << numberOfDims2 - i << " of size " << dim2; |
| return false; |
| } |
| out->dimensions[maxDims - i] = (dim1 == 1) ? dim2 : dim1; |
| } |
| return true; |
| } |
| |
| template <> |
| uint8_t requantize<uint8_t>(uint8_t value, const Shape& oldShape, const Shape& newShape) { |
| double doubleValue = (value - oldShape.offset) * oldShape.scale; |
| double doubleRet = doubleValue / newShape.scale + newShape.offset; |
| if (doubleRet < 0) return 0; |
| if (doubleRet > 255) return 255; |
| return static_cast<uint8_t>(std::round(doubleRet)); |
| } |
| |
| template <> |
| int8_t requantize<int8_t>(int8_t value, const Shape& oldShape, const Shape& newShape) { |
| double doubleValue = (value - oldShape.offset) * oldShape.scale; |
| double doubleRet = doubleValue / newShape.scale + newShape.offset; |
| if (doubleRet < -128) return -128; |
| if (doubleRet > 127) return 127; |
| return static_cast<int8_t>(std::round(doubleRet)); |
| } |
| |
| bool reshapePrepare(const Shape& input, const int32_t* targetDims, const int32_t targetDimsSize, |
| Shape* output) { |
| // Reshape allows one of the targetDims components to have the |
| // special -1 value, meaning it will be calculated automatically based on the |
| // input. Here we calculate what that dimension should be so that the number |
| // of output elements in the same as the number of input elements. |
| int32_t numInputElements = (int32_t)getNumberOfElements(input); |
| |
| std::vector<uint32_t> outDims(targetDimsSize); |
| int32_t numOutputElements = 1; |
| int32_t strechDim = -1; |
| for (int32_t i = 0; i < targetDimsSize; ++i) { |
| int32_t value = targetDims[i]; |
| if (value == -1) { |
| NN_OPS_CHECK(strechDim == -1); |
| strechDim = i; |
| } else { |
| numOutputElements *= value; |
| outDims[i] = (uint32_t)value; |
| } |
| } |
| if (strechDim != -1) { |
| int32_t strechValue = numInputElements / numOutputElements; |
| outDims[strechDim] = (uint32_t)strechValue; |
| numOutputElements *= strechValue; |
| } |
| |
| NN_OPS_CHECK(numInputElements == numOutputElements); |
| |
| output->type = input.type; |
| output->dimensions = outDims; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool depthToSpacePrepare(const Shape& input, int32_t blockSize, Shape* output) { |
| NN_OPS_CHECK(getNumberOfDimensions(input) == 4); |
| NN_OPS_CHECK(blockSize > 0); |
| |
| uint32_t batches = getSizeOfDimension(input, 0); |
| uint32_t height = getSizeOfDimension(input, 1); |
| uint32_t width = getSizeOfDimension(input, 2); |
| uint32_t channels = getSizeOfDimension(input, 3); |
| |
| NN_OPS_CHECK(channels % (blockSize * blockSize) == 0); |
| output->type = input.type; |
| output->dimensions = {batches, height * blockSize, width * blockSize, |
| channels / (blockSize * blockSize)}; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool spaceToDepthPrepare(const Shape& input, int32_t blockSize, Shape* output) { |
| NN_OPS_CHECK(getNumberOfDimensions(input) == 4); |
| NN_OPS_CHECK(blockSize > 0); |
| |
| uint32_t batches = getSizeOfDimension(input, 0); |
| uint32_t height = getSizeOfDimension(input, 1); |
| uint32_t width = getSizeOfDimension(input, 2); |
| uint32_t channels = getSizeOfDimension(input, 3); |
| |
| NN_OPS_CHECK(height % blockSize == 0); |
| NN_OPS_CHECK(width % blockSize == 0); |
| |
| output->type = input.type; |
| output->dimensions = {batches, height / blockSize, width / blockSize, |
| channels * (blockSize * blockSize)}; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool embeddingLookupPrepare(const Shape& valueShape, const Shape& lookupShape, Shape* outputShape) { |
| NN_OPS_CHECK(getNumberOfDimensions(valueShape) >= 2); |
| NN_OPS_CHECK(getNumberOfDimensions(lookupShape) == 1); |
| |
| const uint32_t columns = getSizeOfDimension(valueShape, 1); |
| const uint32_t lookups = getSizeOfDimension(lookupShape, 0); |
| |
| outputShape->type = valueShape.type; |
| outputShape->dimensions = {lookups, columns}; |
| for (uint32_t i = 2; i < getNumberOfDimensions(valueShape); i++) { |
| outputShape->dimensions.push_back(getSizeOfDimension(valueShape, i)); |
| } |
| outputShape->offset = valueShape.offset; |
| outputShape->scale = valueShape.scale; |
| |
| return true; |
| } |
| |
| bool hashtableLookupPrepare(const Shape& lookupShape, const Shape& keyShape, |
| const Shape& valueShape, Shape* outputShape, Shape* hitShape) { |
| NN_OPS_CHECK(getNumberOfDimensions(lookupShape) == 1); |
| NN_OPS_CHECK(getNumberOfDimensions(keyShape) == 1); |
| NN_OPS_CHECK(getNumberOfDimensions(valueShape) >= 1); |
| |
| const uint32_t lookups = getSizeOfDimension(lookupShape, 0); |
| outputShape->type = valueShape.type; |
| outputShape->dimensions = {lookups}; |
| for (uint32_t i = 1; i < getNumberOfDimensions(valueShape); i++) { |
| outputShape->dimensions.push_back(getSizeOfDimension(valueShape, i)); |
| } |
| outputShape->offset = valueShape.offset; |
| outputShape->scale = valueShape.scale; |
| |
| hitShape->type = OperandType::TENSOR_QUANT8_ASYMM; |
| hitShape->dimensions = {lookups}; |
| hitShape->offset = 0; |
| hitShape->scale = 1.f; |
| |
| return true; |
| } |
| |
| bool padPrepare(const Shape& input, const int32_t* paddingsData, const Shape& paddingsShape, |
| Shape* output) { |
| uint32_t numInputDims = getNumberOfDimensions(input); |
| |
| // paddings need to be provided as a 2-D int32 tensor. |
| NN_OPS_CHECK(paddingsShape.type == OperandType::TENSOR_INT32); |
| NN_OPS_CHECK(getNumberOfDimensions(paddingsShape) == 2); |
| NN_OPS_CHECK(getSizeOfDimension(paddingsShape, 0) == numInputDims); |
| NN_OPS_CHECK(getSizeOfDimension(paddingsShape, 1) == 2); |
| |
| std::vector<uint32_t> outDims(numInputDims); |
| for (uint32_t i = 0; i < numInputDims; ++i) { |
| int32_t beforePadding = *paddingsData++; |
| int32_t afterPadding = *paddingsData++; |
| // Pad value has to be greater than equal to 0. |
| NN_OPS_CHECK(beforePadding >= 0 && afterPadding >= 0); |
| outDims[i] = beforePadding + getSizeOfDimension(input, i) + afterPadding; |
| } |
| output->type = input.type; |
| output->dimensions = outDims; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool batchToSpacePrepare(const Shape& input, const int32_t* blockSizeData, |
| const Shape& blockSizeShape, Shape* output) { |
| // Only 4D NHWC tensors are supported. |
| NN_OPS_CHECK(getNumberOfDimensions(input) == 4); |
| |
| // blockSize need to be provided as a 1-D int32 tensor. |
| NN_OPS_CHECK(blockSizeShape.type == OperandType::TENSOR_INT32); |
| NN_OPS_CHECK(getNumberOfDimensions(blockSizeShape) == 1); |
| // Only applies to spatial dimensions. |
| NN_OPS_CHECK(getSizeOfDimension(blockSizeShape, 0) == 2); |
| |
| uint32_t batches = getSizeOfDimension(input, 0); |
| uint32_t height = getSizeOfDimension(input, 1); |
| uint32_t width = getSizeOfDimension(input, 2); |
| uint32_t channels = getSizeOfDimension(input, 3); |
| |
| NN_OPS_CHECK(batches % (blockSizeData[0] * blockSizeData[1]) == 0); |
| output->type = input.type; |
| output->dimensions = {batches / (blockSizeData[0] * blockSizeData[1]), |
| height * blockSizeData[0], width * blockSizeData[1], channels}; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool spaceToBatchPrepare(const Shape& input, const int32_t* blockSizeData, |
| const Shape& blockSizeShape, const int32_t* paddingsData, |
| const Shape& paddingsShape, Shape* output) { |
| // Only 4D NHWC tensors are supported. |
| NN_OPS_CHECK(getNumberOfDimensions(input) == 4); |
| |
| // blockSize need to be provided as a 1-D int32 tensor. |
| NN_OPS_CHECK(blockSizeShape.type == OperandType::TENSOR_INT32); |
| NN_OPS_CHECK(getNumberOfDimensions(blockSizeShape) == 1); |
| // Only applies to spatial dimensions. |
| NN_OPS_CHECK(getSizeOfDimension(blockSizeShape, 0) == 2); |
| |
| // paddings need to be provided as a 2-D int32 tensor. |
| NN_OPS_CHECK(paddingsShape.type == OperandType::TENSOR_INT32); |
| NN_OPS_CHECK(getNumberOfDimensions(paddingsShape) == 2); |
| NN_OPS_CHECK(getSizeOfDimension(paddingsShape, 0) == 2); |
| NN_OPS_CHECK(getSizeOfDimension(paddingsShape, 1) == 2); |
| |
| uint32_t batches = getSizeOfDimension(input, 0); |
| uint32_t height = getSizeOfDimension(input, 1); |
| uint32_t width = getSizeOfDimension(input, 2); |
| uint32_t channels = getSizeOfDimension(input, 3); |
| |
| uint32_t paddedHeight = paddingsData[0] + height + paddingsData[1]; |
| uint32_t paddedWidth = paddingsData[2] + width + paddingsData[3]; |
| |
| NN_OPS_CHECK(paddedHeight % blockSizeData[0] == 0); |
| NN_OPS_CHECK(paddedWidth % blockSizeData[1] == 0); |
| |
| output->type = input.type; |
| output->dimensions = {batches * (blockSizeData[0] * blockSizeData[1]), |
| paddedHeight / blockSizeData[0], paddedWidth / blockSizeData[1], |
| channels}; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool meanPrepare(const Shape& input, const int32_t* axisData, const Shape& axisShape, bool keepDims, |
| Shape* output) { |
| // perm need to be provided as a 1-D int32 tensor. |
| NN_OPS_CHECK(axisShape.type == OperandType::TENSOR_INT32); |
| NN_OPS_CHECK(getNumberOfDimensions(axisShape) == 1); |
| |
| int32_t numInputDims = static_cast<int32_t>(getNumberOfDimensions(input)); |
| int32_t axisSize = static_cast<int32_t>(getSizeOfDimension(axisShape, 0)); |
| |
| // Determines size of output tensor. |
| if (keepDims) { |
| std::vector<uint32_t> outDims(numInputDims); |
| for (int32_t idx = 0; idx < numInputDims; ++idx) { |
| bool isAxis = false; |
| for (int32_t axisIdx = 0; axisIdx < axisSize; ++axisIdx) { |
| if (axisData[axisIdx] == idx || axisData[axisIdx] + numInputDims == idx) { |
| isAxis = true; |
| break; |
| } |
| } |
| if (isAxis) { |
| outDims[idx] = 1; |
| } else { |
| outDims[idx] = getSizeOfDimension(input, idx); |
| } |
| } |
| output->dimensions = outDims; |
| } else { |
| // Calculates size of reducing axis. |
| int32_t numReduceAxis = axisSize; |
| for (int32_t i = 0; i < axisSize; ++i) { |
| int32_t current = axisData[i]; |
| if (current < 0) { |
| current += numInputDims; |
| } |
| NN_OPS_CHECK(current >= 0 && current < numInputDims); |
| for (int32_t j = 0; j < i; ++j) { |
| int32_t previous = axisData[j]; |
| if (previous < 0) { |
| previous += numInputDims; |
| } |
| if (current == previous) { |
| --numReduceAxis; |
| break; |
| } |
| } |
| } |
| // Determines output dimensions. |
| std::vector<uint32_t> outDims(numInputDims - numReduceAxis); |
| int32_t numSkipAxis = 0; |
| for (int32_t idx = 0; idx < numInputDims; ++idx) { |
| bool isAxis = false; |
| for (int32_t axisIdx = 0; axisIdx < axisSize; ++axisIdx) { |
| if (axisData[axisIdx] == idx || axisData[axisIdx] + numInputDims == idx) { |
| ++numSkipAxis; |
| isAxis = true; |
| break; |
| } |
| } |
| if (!isAxis) { |
| outDims[idx - numSkipAxis] = getSizeOfDimension(input, idx); |
| } |
| } |
| // Handle the case when all dimensions are removed |
| if (outDims.empty()) { |
| outDims.push_back(1); |
| } |
| output->dimensions = outDims; |
| } |
| |
| output->type = input.type; |
| output->offset = input.offset; |
| output->scale = input.scale; |
| |
| return true; |
| } |
| |
| bool argMinMaxPrepare(const Shape& input, int32_t axis, Shape* output) { |
| NN_CHECK(handleNegativeAxis(input, &axis)); |
| |
| output->type = OperandType::TENSOR_INT32; |
| |
| // Copy the input dimensions, omitting the axis dimension. |
| output->dimensions.clear(); |
| if (getNumberOfDimensions(input) > 1) { |
| output->dimensions.reserve(getNumberOfDimensions(input) - 1); |
| output->dimensions.insert(output->dimensions.end(), input.dimensions.begin(), |
| input.dimensions.begin() + axis); |
| output->dimensions.insert(output->dimensions.end(), input.dimensions.begin() + axis + 1, |
| input.dimensions.end()); |
| } else { |
| output->dimensions.push_back(1); |
| } |
| |
| return true; |
| } |
| |
| bool splitPrepare(const Shape& input, int32_t axis, int32_t numOutputs, |
| std::vector<Shape>* output) { |
| NN_CHECK(handleNegativeAxis(input, &axis)); |
| |
| const int32_t sizeOfAxisToSplit = input.dimensions[axis]; |
| NN_OPS_CHECK(sizeOfAxisToSplit % numOutputs == 0); |
| const int32_t sliceSize = sizeOfAxisToSplit / numOutputs; |
| |
| for (int i = 0; i < numOutputs; ++i) { |
| output->at(i).type = input.type; |
| output->at(i).dimensions = input.dimensions; |
| output->at(i).dimensions[axis] = sliceSize; |
| output->at(i).offset = input.offset; |
| output->at(i).scale = input.scale; |
| } |
| return true; |
| } |
| |
| bool groupedConvPrepare(const Shape& input, const Shape& filter, const Shape& bias, |
| int32_t padding_left, int32_t padding_right, int32_t padding_top, |
| int32_t padding_bottom, int32_t stride_width, int32_t stride_height, |
| int32_t numGroups, Shape* output) { |
| if (filter.type == OperandType::TENSOR_QUANT8_SYMM_PER_CHANNEL) { |
| NN_OPS_CHECK(input.type == OperandType::TENSOR_QUANT8_ASYMM || |
| input.type == OperandType::TENSOR_QUANT8_ASYMM_SIGNED); |
| } else { |
| NN_OPS_CHECK(input.type == filter.type); |
| } |
| if (input.type == OperandType::TENSOR_QUANT8_ASYMM || |
| input.type == OperandType::TENSOR_QUANT8_ASYMM_SIGNED) { |
| NN_OPS_CHECK(bias.type == OperandType::TENSOR_INT32); |
| } else { |
| NN_OPS_CHECK(input.type == bias.type); |
| } |
| NN_OPS_CHECK(getNumberOfDimensions(input) == 4); |
| NN_OPS_CHECK(getNumberOfDimensions(filter) == 4); |
| NN_OPS_CHECK(getNumberOfDimensions(bias) == 1); |
| |
| NN_OPS_CHECK(getSizeOfDimension(filter, 0) == getSizeOfDimension(bias, 0)); |
| |
| NN_OPS_CHECK(getSizeOfDimension(filter, 3) * numGroups == getSizeOfDimension(input, 3)); |
| NN_OPS_CHECK(getSizeOfDimension(filter, 0) % numGroups == 0); |
| |
| uint32_t channels_out = getSizeOfDimension(filter, 0); |
| uint32_t width = getSizeOfDimension(input, 2); |
| uint32_t height = getSizeOfDimension(input, 1); |
| uint32_t filterWidth = getSizeOfDimension(filter, 2); |
| uint32_t filterHeight = getSizeOfDimension(filter, 1); |
| uint32_t batches = getSizeOfDimension(input, 0); |
| |
| NN_RET_CHECK_GT(static_cast<int32_t>(filterWidth), padding_left); |
| NN_RET_CHECK_GT(static_cast<int32_t>(filterWidth), padding_right); |
| NN_RET_CHECK_GT(static_cast<int32_t>(filterHeight), padding_top); |
| NN_RET_CHECK_GT(static_cast<int32_t>(filterHeight), padding_bottom); |
| |
| uint32_t outWidth = |
| computeOutSize(width, filterWidth, stride_width, padding_left, padding_right); |
| uint32_t outHeight = |
| computeOutSize(height, filterHeight, stride_height, padding_top, padding_bottom); |
| |
| output->type = input.type; |
| output->dimensions = {batches, outHeight, outWidth, channels_out}; |
| return true; |
| } |
| |
| } // namespace nn |
| } // namespace android |
