gx

chenyc

2025-06-12 7b72ac13a83764a662159d4a49b7fffb90476ecb

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
/**
 * @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 { Draw } from '@tensorflow/tfjs-core';
export function draw(args) {
    const { inputs, backend, attrs } = args;
    const { image } = inputs;
    const { canvas, options } = attrs;
    const { contextOptions, imageOptions } = options || {};
    const alpha = (imageOptions === null || imageOptions === void 0 ? void 0 : imageOptions.alpha) || 1;
    const contextType = (contextOptions === null || contextOptions === void 0 ? void 0 : contextOptions.contextType) || '2d';
    if (contextType !== '2d') {
        throw new Error(`Context type ${contextOptions.contextType} is not supported by the CPU backend.`);
    }
    const ctx = canvas.getContext(contextType, (contextOptions === null || contextOptions === void 0 ? void 0 : contextOptions.contextAttributes) || {});
    if (ctx == null) {
        throw new Error(`Could not get the context with ${contextType} type.`);
    }
    const [height, width] = image.shape.slice(0, 2);
    const depth = image.shape.length === 2 ? 1 : image.shape[2];
    const data = backend.data.get(image.dataId).values;
    const multiplier = image.dtype === 'float32' ? 255 : 1;
    const bytes = new Uint8ClampedArray(width * height * 4);
    for (let i = 0; i < height * width; ++i) {
        const rgba = [0, 0, 0, 255 * alpha];
        for (let d = 0; d < depth; d++) {
            const value = data[i * depth + d];
            if (image.dtype === 'float32') {
                if (value < 0 || value > 1) {
                    throw new Error(`Tensor values for a float32 Tensor must be in the ` +
                        `range [0 - 1] but encountered ${value}.`);
                }
            }
            else if (image.dtype === 'int32') {
                if (value < 0 || value > 255) {
                    throw new Error(`Tensor values for a int32 Tensor must be in the ` +
                        `range [0 - 255] but encountered ${value}.`);
                }
            }
            if (depth === 1) {
                rgba[0] = value * multiplier;
                rgba[1] = value * multiplier;
                rgba[2] = value * multiplier;
            }
            else {
                rgba[d] = value * multiplier;
            }
        }
        const j = i * 4;
        bytes[j + 0] = Math.round(rgba[0]);
        bytes[j + 1] = Math.round(rgba[1]);
        bytes[j + 2] = Math.round(rgba[2]);
        bytes[j + 3] = Math.round(rgba[3]);
    }
    canvas.width = width;
    canvas.height = height;
    const imageData = new ImageData(bytes, width, height);
    ctx.putImageData(imageData, 0, 0);
    return image;
}
export const drawConfig = {
    kernelName: Draw,
    backendName: 'cpu',
    kernelFunc: draw
};
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"Draw.js","sourceRoot":"","sources":["../../../../../../tfjs-backend-cpu/src/kernels/Draw.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;GAeG;AAEH,OAAO,EAAC,IAAI,EAA8D,MAAM,uBAAuB,CAAC;AAKxG,MAAM,UAAU,IAAI,CAChB,IAAqE;IAEvE,MAAM,EAAC,MAAM,EAAE,OAAO,EAAE,KAAK,EAAC,GAAG,IAAI,CAAC;IACtC,MAAM,EAAC,KAAK,EAAC,GAAG,MAAM,CAAC;IACvB,MAAM,EAAC,MAAM,EAAE,OAAO,EAAC,GAAG,KAAK,CAAC;IAChC,MAAM,EAAC,cAAc,EAAE,YAAY,EAAC,GAAG,OAAO,IAAI,EAAE,CAAC;IACrD,MAAM,KAAK,GAAG,CAAA,YAAY,aAAZ,YAAY,uBAAZ,YAAY,CAAG,KAAK,KAAI,CAAC,CAAC;IAExC,MAAM,WAAW,GAAG,CAAA,cAAc,aAAd,cAAc,uBAAd,cAAc,CAAG,WAAW,KAAI,IAAI,CAAC;IACzD,IAAI,WAAW,KAAK,IAAI,EAAE;QACxB,MAAM,IAAI,KAAK,CAAC,gBACZ,cAAc,CAAC,WAAW,uCAAuC,CAAC,CAAC;KACxE;IACD,MAAM,GAAG,GAAG,MAAM,CAAC,UAAU,CAAC,WAAW,EACvC,CAAA,cAAc,aAAd,cAAc,uBAAd,cAAc,CAAE,iBAAiB,KAAI,EAAE,CAA6B,CAAE;IACxE,IAAI,GAAG,IAAI,IAAI,EAAE;QACf,MAAM,IAAI,KAAK,CAAC,kCAAkC,WAAW,QAAQ,CAAC,CAAC;KACxE;IAED,MAAM,CAAC,MAAM,EAAE,KAAK,CAAC,GAAG,KAAK,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;IAChD,MAAM,KAAK,GAAG,KAAK,CAAC,KAAK,CAAC,MAAM,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;IAC5D,MAAM,IAAI,GAAG,OAAO,CAAC,IAAI,CAAC,GAAG,CAAC,KAAK,CAAC,MAAM,CAAC,CAAC,MAAoB,CAAC;IACjE,MAAM,UAAU,GAAG,KAAK,CAAC,KAAK,KAAK,SAAS,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC,CAAC;IACvD,MAAM,KAAK,GAAG,IAAI,iBAAiB,CAAC,KAAK,GAAG,MAAM,GAAG,CAAC,CAAC,CAAC;IAExD,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,MAAM,GAAG,KAAK,EAAE,EAAE,CAAC,EAAE;QACvC,MAAM,IAAI,GAAG,CAAC,CAAC,EAAE,CAAC,EAAE,CAAC,EAAE,GAAG,GAAG,KAAK,CAAC,CAAC;QAEpC,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,KAAK,EAAE,CAAC,EAAE,EAAE;YAC9B,MAAM,KAAK,GAAG,IAAI,CAAC,CAAC,GAAG,KAAK,GAAG,CAAC,CAAC,CAAC;YAElC,IAAI,KAAK,CAAC,KAAK,KAAK,SAAS,EAAE;gBAC7B,IAAI,KAAK,GAAG,CAAC,IAAI,KAAK,GAAG,CAAC,EAAE;oBAC1B,MAAM,IAAI,KAAK,CACX,oDAAoD;wBACpD,iCAAiC,KAAK,GAAG,CAAC,CAAC;iBAChD;aACF;iBAAM,IAAI,KAAK,CAAC,KAAK,KAAK,OAAO,EAAE;gBAClC,IAAI,KAAK,GAAG,CAAC,IAAI,KAAK,GAAG,GAAG,EAAE;oBAC5B,MAAM,IAAI,KAAK,CACX,kDAAkD;wBAClD,mCAAmC,KAAK,GAAG,CAAC,CAAC;iBAClD;aACF;YAED,IAAI,KAAK,KAAK,CAAC,EAAE;gBACf,IAAI,CAAC,CAAC,CAAC,GAAG,KAAK,GAAG,UAAU,CAAC;gBAC7B,IAAI,CAAC,CAAC,CAAC,GAAG,KAAK,GAAG,UAAU,CAAC;gBAC7B,IAAI,CAAC,CAAC,CAAC,GAAG,KAAK,GAAG,UAAU,CAAC;aAC9B;iBAAM;gBACL,IAAI,CAAC,CAAC,CAAC,GAAG,KAAK,GAAG,UAAU,CAAC;aAC9B;SACF;QAED,MAAM,CAAC,GAAG,CAAC,GAAG,CAAC,CAAC;QAChB,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;QACnC,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;QACnC,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;QACnC,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC;KACpC;IAED,MAAM,CAAC,KAAK,GAAG,KAAK,CAAC;IACrB,MAAM,CAAC,MAAM,GAAG,MAAM,CAAC;IACvB,MAAM,SAAS,GAAG,IAAI,SAAS,CAAC,KAAK,EAAE,KAAK,EAAE,MAAM,CAAC,CAAC;IACtD,GAAG,CAAC,YAAY,CAAC,SAAS,EAAE,CAAC,EAAE,CAAC,CAAC,CAAC;IAClC,OAAO,KAAK,CAAC;AACf,CAAC;AAED,MAAM,CAAC,MAAM,UAAU,GAAiB;IACtC,UAAU,EAAE,IAAI;IAChB,WAAW,EAAE,KAAK;IAClB,UAAU,EAAE,IAA6B;CAC1C,CAAC","sourcesContent":["/**\n * @license\n * Copyright 2023 Google LLC.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * =============================================================================\n */\n\nimport {Draw, DrawAttrs, DrawInputs, KernelConfig, KernelFunc, TypedArray} from '@tensorflow/tfjs-core';\nimport {TensorInfo} from '@tensorflow/tfjs-core';\n\nimport {MathBackendCPU} from '../backend_cpu';\n\nexport function draw(\n    args: {inputs: DrawInputs, backend: MathBackendCPU, attrs: DrawAttrs}):\n    TensorInfo {\n  const {inputs, backend, attrs} = args;\n  const {image} = inputs;\n  const {canvas, options} = attrs;\n  const {contextOptions, imageOptions} = options || {};\n  const alpha = imageOptions ?.alpha || 1;\n\n  const contextType = contextOptions ?.contextType || '2d';\n  if (contextType !== '2d') {\n    throw new Error(`Context type ${\n        contextOptions.contextType} is not supported by the CPU backend.`);\n  }\n  const ctx = canvas.getContext(contextType,\n    contextOptions?.contextAttributes || {}) as CanvasRenderingContext2D ;\n  if (ctx == null) {\n    throw new Error(`Could not get the context with ${contextType} type.`);\n  }\n\n  const [height, width] = image.shape.slice(0, 2);\n  const depth = image.shape.length === 2 ? 1 : image.shape[2];\n  const data = backend.data.get(image.dataId).values as TypedArray;\n  const multiplier = image.dtype === 'float32' ? 255 : 1;\n  const bytes = new Uint8ClampedArray(width * height * 4);\n\n  for (let i = 0; i < height * width; ++i) {\n    const rgba = [0, 0, 0, 255 * alpha];\n\n    for (let d = 0; d < depth; d++) {\n      const value = data[i * depth + d];\n\n      if (image.dtype === 'float32') {\n        if (value < 0 || value > 1) {\n          throw new Error(\n              `Tensor values for a float32 Tensor must be in the ` +\n              `range [0 - 1] but encountered ${value}.`);\n        }\n      } else if (image.dtype === 'int32') {\n        if (value < 0 || value > 255) {\n          throw new Error(\n              `Tensor values for a int32 Tensor must be in the ` +\n              `range [0 - 255] but encountered ${value}.`);\n        }\n      }\n\n      if (depth === 1) {\n        rgba[0] = value * multiplier;\n        rgba[1] = value * multiplier;\n        rgba[2] = value * multiplier;\n      } else {\n        rgba[d] = value * multiplier;\n      }\n    }\n\n    const j = i * 4;\n    bytes[j + 0] = Math.round(rgba[0]);\n    bytes[j + 1] = Math.round(rgba[1]);\n    bytes[j + 2] = Math.round(rgba[2]);\n    bytes[j + 3] = Math.round(rgba[3]);\n  }\n\n  canvas.width = width;\n  canvas.height = height;\n  const imageData = new ImageData(bytes, width, height);\n  ctx.putImageData(imageData, 0, 0);\n  return image;\n}\n\nexport const drawConfig: KernelConfig = {\n  kernelName: Draw,\n  backendName: 'cpu',\n  kernelFunc: draw as unknown as KernelFunc\n};\n"]}