gx

chenyc

2025-06-12 7b72ac13a83764a662159d4a49b7fffb90476ecb

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/**
 * @license
 * Copyright 2023 Google LLC.
 * 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.
 * =============================================================================
 */
import { BitwiseAnd, env } from '@tensorflow/tfjs-core';
import { BinaryOpProgram } from '../binaryop_gpu';
import { BinaryOpPackedProgram } from '../binaryop_packed_gpu';
import { bitwiseAndImplCPU as cpuBitwiseAnd } from '../kernel_utils/shared';
export const BITWISEAND = `
  int r = int(a.r) & int(b.r);
  int g = int(a.g) & int(b.g);
  int rb = int(a.b) & int(b.b);
  int ra = int(a.a) & int(b.a);
  return vec4(r, g, rb, ra);
`;
export const BITWISEAND_UNPACKED = `
  return float(int(a.r) & int(b.r));
`;
export function bitwiseAnd(args) {
    const { inputs, backend } = args;
    const { a, b } = inputs;
    const shouldUsePackedProgram = env().getBool('WEBGL_PACK_BINARY_OPERATIONS');
    const versionNumber = env().getNumber('WEBGL_VERSION');
    // The type of a and b are ensured to be `int32` in core, therefore no need to
    // consider other type situations.
    if ((backend.shouldExecuteOnCPU([a, b])) || versionNumber === 1) {
        const aVals = backend.texData.get(a.dataId).values;
        const bVals = backend.texData.get(b.dataId).values;
        const [outValues, outShape] = cpuBitwiseAnd(a.shape, b.shape, aVals, bVals, a.dtype);
        const out = backend.makeTensorInfo(outShape, a.dtype);
        const outData = backend.texData.get(out.dataId);
        outData.values = outValues;
        return out;
    }
    let program;
    if (shouldUsePackedProgram) {
        program = new BinaryOpPackedProgram(BITWISEAND, a.shape, b.shape, false);
    }
    else {
        program = new BinaryOpProgram(BITWISEAND_UNPACKED, a.shape, b.shape);
    }
    return backend.runWebGLProgram(program, [a, b], a.dtype);
}
export const bitwiseAndConfig = {
    kernelName: BitwiseAnd,
    backendName: 'webgl',
    kernelFunc: bitwiseAnd
};
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