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Merge pull request gemini-testing#85 from gemini-testing/HERMIONE-451…
….migrate_to_sharp feat: add different files format support
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,41 @@ | ||
'use strict'; | ||
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const ImageBase = require('../image-base'); | ||
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module.exports = class Image extends ImageBase { | ||
constructor(img) { | ||
super(); | ||
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this._img = img; | ||
} | ||
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async init() { | ||
const {data, info} = await this._img.raw().toBuffer({resolveWithObject: true}); | ||
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this._buffer = data; | ||
this._width = info.width; | ||
this._height = info.height; | ||
this._channels = info.channels; | ||
} | ||
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getPixel(x, y) { | ||
const idx = this._getIdx(x, y); | ||
return { | ||
R: this._buffer[idx], | ||
G: this._buffer[idx + 1], | ||
B: this._buffer[idx + 2] | ||
}; | ||
} | ||
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_getIdx(x, y) { | ||
return (this._width * y + x) * this._channels; | ||
} | ||
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async save(path) { | ||
return this._img.toFile(path); | ||
} | ||
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async createBuffer(extension) { | ||
return this._img.toFormat(extension).toBuffer(); | ||
} | ||
}; |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,27 @@ | ||
'use strict'; | ||
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const fs = require('fs-extra'); | ||
const NestedError = require('nested-error-stacks'); | ||
const sharp = require('sharp'); | ||
const OriginalIMG = require('./original-image'); | ||
const BoundedIMG = require('./bounded-image'); | ||
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const createimage = async (img, {boundingBox} = {}) => { | ||
return boundingBox | ||
? BoundedIMG.create(img, boundingBox) | ||
: OriginalIMG.create(img); | ||
}; | ||
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exports.fromBuffer = async (buffer, opts) => { | ||
const img = sharp(buffer, opts); | ||
return createimage(img, opts); | ||
}; | ||
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exports.fromFile = async (filePath, opts = {}) => { | ||
try { | ||
const buffer = await fs.readFile(filePath); | ||
return exports.fromBuffer(buffer, opts); | ||
} catch (err) { | ||
throw new NestedError(`Can't load img file ${filePath}`, err); | ||
} | ||
}; |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,17 @@ | ||
'use strict'; | ||
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const Image = require('./image'); | ||
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module.exports = class OriginalImage extends Image { | ||
getActualCoord(x, y) { | ||
return {x, y}; | ||
} | ||
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get width() { | ||
return this._width; | ||
} | ||
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get height() { | ||
return this._height; | ||
} | ||
}; |
4 changes: 2 additions & 2 deletions
4
lib/png-buffer/bounded-buffer.js → lib/img-buffer/bounded-buffer.js
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,20 @@ | ||
'use strict'; | ||
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const IMGBuffer = require('./buffer'); | ||
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const IMG_WIDTH_OFFSET = 16; | ||
const IMG_HEIGHT_OFFSET = 20; | ||
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module.exports = class OriginalIMGBuffer extends IMGBuffer { | ||
getActualCoord(x, y) { | ||
return {x, y}; | ||
} | ||
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get width() { | ||
return this._buffer.readUInt32BE(IMG_WIDTH_OFFSET); | ||
} | ||
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get height() { | ||
return this._buffer.readUInt32BE(IMG_HEIGHT_OFFSET); | ||
} | ||
}; |
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