@hoff97/tensor-js/dist/lib/ops/gpu/unary/clip.js

PyTorch like deep learning inferrence library

import { defaultAllocator } from '../../../tensor/gpu/gl';
import { Operation } from '../operation';
export class ClipOperation extends Operation {
    constructor(tensorConstructor, dtype, allocator) {
        super(tensorConstructor, dtype, allocator);
    }
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    getFragmentShader(info) {
        return `
    void main() {
      initVars();

      vec4 maxVec = vec4(maxVal,maxVal,maxVal,maxVal);
      vec4 minVec = vec4(minVal,minVal,minVal,minVal);

      vec4 res = texture2D(X, uv);
      if (doMin == 1) {
        res = max(minVec, res);
      }
      if (doMax == 1) {
        res = min(maxVec, res);
      }

      gl_FragColor = res;
    }
    `;
    }
    getTextureNames() {
        return ['X'];
    }
    getVariables() {
        return `
    ${this.getVarModifier('minVal')} float minVal;
    ${this.getVarModifier('maxVal')} float maxVal;
    ${this.getVarModifier('doMin')} int doMin;
    ${this.getVarModifier('doMax')} int doMax;
    `;
    }
    getUniformAttrs() {
        return [
            { name: 'minVal', type: 'float' },
            { name: 'maxVal', type: 'float' },
            { name: 'doMin' },
            { name: 'doMax' },
        ];
    }
    calc(input) {
        if (this.fullyStatic && this.outputShape !== undefined) {
            return this.compute(this.outputShape, { X: input.input });
        }
        return this.compute(input.input.shape, { X: input.input }, {
            minVal: input.minVal !== undefined ? input.minVal : 0,
            maxVal: input.maxVal !== undefined ? input.maxVal : 0,
            doMin: input.minVal !== undefined ? 1 : 0,
            doMax: input.maxVal !== undefined ? 1 : 0,
        });
    }
    getOutputShape(input) {
        return input.input.shape;
    }
    compile(info) {
        if (info.shapeX !== undefined) {
            this.maxRank = info.shapeX.length;
        }
        super.compile(info);
    }
    getCompilationInfo(input) {
        const outputSize = defaultAllocator.getAllocationDimensions(input.input.size, this.dtype);
        return {
            shapeX: input.input.shape,
            widthX: input.input.memory.width,
            heightX: input.input.memory.height,
            shapeOutput: input.input.shape,
            widthOutput: outputSize.width,
            heightOutput: outputSize.height,
            minVal: input.minVal !== undefined ? input.minVal : 0,
            maxVal: input.maxVal !== undefined ? input.maxVal : 0,
            doMin: input.minVal !== undefined ? 1 : 0,
            doMax: input.maxVal !== undefined ? 1 : 0,
        };
    }
    getInputInfoString(input) {
        return `${input.input.shape}-${input.minVal}-${input.maxVal}`;
    }
}
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