onnxruntime-web
Version:
A Javascript library for running ONNX models on browsers
68 lines • 2.93 kB
JavaScript
;
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseSplitAttributes = exports.split = void 0;
const attribute_with_cache_key_1 = require("../../../attribute-with-cache-key");
const util_1 = require("../../../util");
const types_1 = require("../types");
const splitProgramMetadata = {
name: 'Split',
inputNames: ['A'],
inputTypes: [types_1.TextureType.unpacked],
};
const split = (inferenceHandler, inputs, attributes) => {
validateInputs(inputs);
const axis = util_1.ShapeUtil.normalizeAxis(attributes.axis, inputs[0].dims.length);
const count = getProgramCount(inferenceHandler, inputs, axis, attributes);
const output = [];
for (let i = 0; i < count; ++i) {
output.push(inferenceHandler.run({
...splitProgramMetadata,
cacheHint: `${attributes.cacheKey};${i}`,
get: () => createSplitProgramInfo(inferenceHandler, inputs[0], attributes, axis, i)
}, inputs));
}
return output;
};
exports.split = split;
const parseSplitAttributes = (node) => {
const axis = node.attributes.getInt('axis', 0);
const split = node.attributes.getInts('split', []);
const numOutputs = node.outputs.length;
return (0, attribute_with_cache_key_1.createAttributeWithCacheKey)({ axis, split, numOutputs });
};
exports.parseSplitAttributes = parseSplitAttributes;
const getProgramCount = (_inferenceHandler, inputs, axis, attributes) => {
const [, offsets] = util_1.SplitUtil.splitShape(inputs[0].dims, axis, attributes.split, attributes.numOutputs);
return offsets.length;
};
const createSplitProgramInfo = (_inferenceHandler, input, attributes, axis, index) => {
const [shapes, offsets] = util_1.SplitUtil.splitShape(input.dims, axis, attributes.split, attributes.numOutputs);
const offset = offsets[index];
const outputShape = shapes[index];
const rank = outputShape.length;
const shaderSource = `
float process(int indices[${rank}]) {
indices[${axis}] += ${offset};
return _A(indices);
}
`;
return {
...splitProgramMetadata,
cacheHint: `${attributes.cacheKey}:${index}`,
output: { dims: outputShape, type: input.type, textureType: types_1.TextureType.unpacked },
shaderSource
};
};
const validateInputs = (inputs) => {
if (!inputs || inputs.length !== 1) {
throw new Error('Split requires one input.');
}
if (inputs[0].type !== 'int8' && inputs[0].type !== 'uint8' && inputs[0].type !== 'int16' &&
inputs[0].type !== 'uint16' && inputs[0].type !== 'int32' && inputs[0].type !== 'uint32' &&
inputs[0].type !== 'float32' && inputs[0].type !== 'float64' && inputs[0].type !== 'bool') {
throw new Error('Invalid input type.');
}
};
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