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⚡️ perf: Optimize the image upload size for
gpt-4-vision
(lobehub#669)
* ♻️ refactor: `FileItem` changed to `ImageFileItem` * ⚡️ perf: Optimize the image upload size for `gpt-4-vision` * 🔧 test: add Test Configuration * 🧪 test: add case * ✏️ chore: typos --------- Co-authored-by: wuxh <wxh1220@gmail.com>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,59 @@ | ||
import compressImage from './compressImage'; | ||
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const getContextSpy = vi.spyOn(global.HTMLCanvasElement.prototype, 'getContext'); | ||
const drawImageSpy = vi.spyOn(CanvasRenderingContext2D.prototype, 'drawImage'); | ||
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beforeEach(() => { | ||
getContextSpy.mockClear(); | ||
drawImageSpy.mockClear(); | ||
}); | ||
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describe('compressImage', () => { | ||
it('should compress image with maxWidth', () => { | ||
const img = document.createElement('img'); | ||
img.width = 3000; | ||
img.height = 2000; | ||
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const r = compressImage({ img }); | ||
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expect(r).toMatch(/^data:image\/webp;base64,/); | ||
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expect(getContextSpy).toBeCalledTimes(1); | ||
expect(getContextSpy).toBeCalledWith('2d'); | ||
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expect(drawImageSpy).toBeCalledTimes(1); | ||
expect(drawImageSpy).toBeCalledWith(img, 0, 0, 3000, 2000, 0, 0, 2160, 1440); | ||
}); | ||
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it('should compress image with maxHeight', () => { | ||
const img = document.createElement('img'); | ||
img.width = 2000; | ||
img.height = 3000; | ||
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const r = compressImage({ img }); | ||
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expect(r).toMatch(/^data:image\/webp;base64,/); | ||
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expect(getContextSpy).toBeCalledTimes(1); | ||
expect(getContextSpy).toBeCalledWith('2d'); | ||
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expect(drawImageSpy).toBeCalledTimes(1); | ||
expect(drawImageSpy).toBeCalledWith(img, 0, 0, 2000, 3000, 0, 0, 1440, 2160); | ||
}); | ||
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it('should not compress image', () => { | ||
const img = document.createElement('img'); | ||
img.width = 2000; | ||
img.height = 2000; | ||
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const r = compressImage({ img }); | ||
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expect(r).toMatch(/^data:image\/webp;base64,/); | ||
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expect(getContextSpy).toBeCalledTimes(1); | ||
expect(getContextSpy).toBeCalledWith('2d'); | ||
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expect(drawImageSpy).toBeCalledTimes(1); | ||
expect(drawImageSpy).toBeCalledWith(img, 0, 0, 2000, 2000, 0, 0, 2000, 2000); | ||
}); | ||
}); |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,29 @@ | ||
const compressImage = ({ img, type = 'image/webp' }: { img: HTMLImageElement; type?: string }) => { | ||
// 设置最大宽高 | ||
const maxWidth = 2160; | ||
const maxHeight = 2160; | ||
let width = img.width; | ||
let height = img.height; | ||
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if (width > height && width > maxWidth) { | ||
// 如果图片宽度大于高度且大于最大宽度限制 | ||
width = maxWidth; | ||
height = Math.round((maxWidth / img.width) * img.height); | ||
} else if (height > width && height > maxHeight) { | ||
// 如果图片高度大于宽度且大于最大高度限制 | ||
height = maxHeight; | ||
width = Math.round((maxHeight / img.height) * img.width); | ||
} | ||
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const canvas = document.createElement('canvas'); | ||
const ctx = canvas.getContext('2d') as CanvasRenderingContext2D; | ||
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canvas.width = width; | ||
canvas.height = height; | ||
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ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0, width, height); | ||
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return canvas.toDataURL(type); | ||
}; | ||
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export default compressImage; |
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